CN115488602B

CN115488602B - Hydraulic pump plunger assembling equipment and assembling method thereof

Info

Publication number: CN115488602B
Application number: CN202211136476.9A
Authority: CN
Inventors: 王道智; 任勇; 邹冰山; 莫小玲
Original assignee: Ningbo Powermetal Industrial Co ltd
Current assignee: Ningbo Powermetal Industrial Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2024-08-02
Anticipated expiration: 2042-09-19
Also published as: CN115488602A

Abstract

The invention relates to the technical field of hydraulic pump plungers, in particular to hydraulic pump plunger assembling equipment and an assembling method thereof, wherein the hydraulic pump plunger assembling equipment comprises a frame, and a feeding transfer device, a riveting transfer device and a plunger seat rolling and loosening device which are arranged on the frame; the feeding transfer device is used for feeding and transferring the plunger body and the plunger seat to the riveting device; the riveting device is used for riveting the plunger seat to the plunger ball head of the plunger body; the riveting transfer device is used for transferring the plunger after riveting to the plunger seat rolling loosening device, and the plunger seat rolling loosening device is used for rolling loosening the peripheral wall of the plunger seat, so that the plunger seat is limited on the plunger ball head and simultaneously the plunger seat and the plunger ball head can move relatively. The invention has the advantages that the equipment automatically completes one-time assembly of the plunger body and the plunger seat, greatly improves the assembly efficiency of the plunger body and the plunger seat, and simultaneously ensures the assembly consistency and the assembly quality.

Description

Hydraulic pump plunger assembling equipment and assembling method thereof

Technical Field

The invention relates to the technical field of hydraulic pump plunger assembly, in particular to hydraulic pump plunger assembly equipment and an assembly method thereof.

Background

As shown in fig. 10, in the conventional hydraulic pump plunger assembly, the plunger seat 8 is riveted to the plunger body 7, and in the process of riveting the plunger seat 8 to the plunger body 7, inaccuracy in positioning of the plunger body 7 or inaccuracy in positioning of the plunger seat 8 easily occurs, so that the plunger seat 8 cannot be accurately riveted to the plunger body 7; and then the plunger after riveting is uniformly conveyed to a loosening processing part in a manual conveying mode, the loosening surface 81 on the plunger seat 8 of the plunger after riveting is loosened, the plunger seat 8 is easy to shake in the loosening process in the loosening processing, the stability of the plunger seat 8 in the loosening process is insufficient, and further the loosening precision of the loosening surface 81 on the plunger seat 8 is deviated, so that the quality of the whole product is influenced. The two processing steps are respectively arranged in the two areas in the processing process, so that the space occupation rate and the manpower are greatly increased, the processing time is greatly increased due to the fact that the conveying is needed in the middle, and the efficiency of the whole processing process is low.

Disclosure of Invention

The invention aims to solve the technical problems of low assembly efficiency and low assembly quality of the existing hydraulic pump plunger, and provides hydraulic pump plunger assembly equipment which can automatically complete one-time assembly of a plunger body and a plunger seat and greatly improve the assembly efficiency and the assembly quality of the plunger body and the plunger seat.

The invention aims at realizing the following technical scheme:

A hydraulic pump plunger assembly device comprises a frame, a feeding transfer device, a riveting transfer device and a plunger seat rolling and loosening device, wherein the feeding transfer device, the riveting transfer device and the plunger seat rolling and loosening device are arranged on the frame; the feeding transfer device is used for feeding and transferring the plunger body and the plunger seat to the riveting device; the riveting device is used for riveting the plunger seat to the plunger ball head of the plunger body; the riveting transfer device is used for transferring the riveted plunger to the plunger seat rolling and loosening device, and the plunger seat rolling and loosening device is used for rolling and loosening the plunger seat, so that the plunger seat is limited on the plunger ball head of the plunger body, and meanwhile, the plunger seat and the plunger ball head can move relatively. The equipment realizes that the plunger body and the plunger seat are automatically assembled at one time, so that the assembly efficiency of the plunger body and the plunger seat is greatly improved, and meanwhile, the assembly consistency and the assembly quality of the plunger body and the plunger seat are ensured.

Preferably, the feeding and transferring device comprises a feeding component and a transferring component; the feeding assembly comprises a feeding bracket, a feeding containing plate and a feeding positioning driving piece; a plurality of holding grooves are arranged on the top of the feeding holding plate in an array manner; the feeding containing plate is connected to the feeding support in a sliding manner in the front-back direction through a containing sliding rail, the feeding positioning driving piece is arranged on the feeding support, the driving part of the feeding positioning driving piece is fixedly connected with the feeding containing plate, and the feeding positioning driving piece drives the feeding containing plate to slide back and forth along the containing sliding rail; the transfer assembly is used for transferring the plunger body and the plunger seat on the containing groove to the riveting device. The feeding positioning driving piece on the feeding transfer device can drive the feeding containing plate to move and position back and forth on the containing slide rail, so that the plunger body and the plunger seat in the containing groove in the feeding containing plate are conveniently grabbed and transferred one by the transfer assembly, and the feeding efficiency is improved.

Preferably, the transfer assembly comprises a linear moving sliding table, a plunger clamping assembly and a plunger seat clamping assembly; the linear moving slipway is arranged on the rack in the horizontal direction; the plunger clamping component and the plunger seat clamping component are respectively arranged on a first sliding plate of the linear moving sliding table; the plunger clamping assembly and the plunger seat clamping assembly are arranged in parallel; the plunger clamping component is used for clamping and rotating the plunger to the riveting device, and the plunger seat clamping component is used for clamping and rotating the plunger seat to the riveting device; the plunger clamping assembly and the plunger seat clamping assembly both comprise a clamping lifting cylinder and a clamping cylinder; the clamping lifting cylinder is longitudinally arranged on the first sliding plate, and a telescopic rod of the clamping lifting cylinder is connected with a clamping lifting plate; two sides of the clamping lifting plate are connected to the first sliding plate in a lifting manner through guide rods; the clamping cylinder is arranged on the clamping lifting plate in the horizontal direction; two first clamping plates matched with the plunger body are arranged on a clamping cylinder on the plunger clamping assembly; and two second clamping plates matched with the plunger seat are arranged on the clamping cylinder on the plunger seat clamping assembly. The plunger clamping component on the transfer component is convenient for grabbing plunger bodies on the feeding containing plate one by one, the plunger seat clamping component on the transfer component is convenient for grabbing plunger seats on the feeding containing plate one by one, and therefore one plunger body and one plunger seat are transferred to the riveting device at the same time, and follow-up riveting of the plunger seats to plunger balls of the plunger bodies is facilitated.

Preferably, the riveting device comprises a riveting positioning assembly and a riveting assembly; the riveting positioning assembly comprises a first positioning frame, a second positioning frame, a first positioning oil cylinder, a second positioning oil cylinder and a positioning support seat; the first positioning frame and the second positioning frame are symmetrically arranged on the frame, and two connecting rods are connected between the first positioning frame and the second positioning frame; the first positioning oil cylinder is horizontally arranged on the first positioning frame, and a telescopic rod of the first positioning oil cylinder penetrates through the first positioning frame to be connected with a first connecting block; the second positioning oil cylinder is horizontally arranged on the second positioning frame; the telescopic rod of the second positioning oil cylinder penetrates through the second positioning frame to be connected with a second connecting block; the positioning support seat is connected to the frame in a lifting manner through a lifting oil cylinder and is positioned between the first connecting block and the second connecting block; the positioning support seat is provided with a plunger placing groove for placing the plunger body; the first connecting block and the second connecting block are clamped and attached to the plunger body in the limit plunger placing groove; the riveting assembly is used for riveting and assembling the plunger seat onto the plunger ball head of the plunger body, so that the plunger seat is fixedly connected with the plunger ball head of the plunger body. The plunger body is convenient to place in through the location supporting seat to carry out spacingly with the plunger body, first connecting block is driven to the location supporting seat by first positioning cylinder and removes, and second positioning cylinder drives the second connecting block and removes to the location supporting seat, and then makes first connecting block and second connecting block laminate mutually and makes the plunger body on the location supporting seat be located first connecting block and second connecting block, and is spacing between first connecting block and second connecting block with the plunger seat simultaneously, is convenient for follow-up with plunger seat riveting to the plunger body on.

Preferably, the first connecting block and the second connecting block are symmetrically arranged, and riveting positioning blocks are arranged on the first connecting block and the second connecting block; the riveting positioning block is longitudinally provided with a stepped half groove with the diameter being increased from top to bottom; the step half groove comprises a first half groove, a second half groove and a third half groove from top to bottom in sequence; the first half groove is used for limiting the plunger seat and enabling the plunger seat to be fixed on a plunger ball head of the plunger body along the inner wall of the first half groove in a closing-in manner during riveting, and a riveting positioning inclined plane is arranged at the outer edge of the top of the first half groove; the positioning support seat is in a stepped cylindrical shape, the plunger placing groove is located in the center of the stepped cylindrical, and the second half groove and the third half groove are used for limiting the positioning support seat in the stepped cylindrical shape. The second half groove and the third half groove on the riveting positioning block are convenient for limit the positioning support seat, and meanwhile, the plunger body on the positioning support seat can be limited to a certain extent, so that the plunger body is prevented from moving greatly in the riveting process, the plunger seat is convenient to limit through the first half groove, the top of the plunger seat is convenient to limit through the riveting positioning inclined plane, the plunger seat is prevented from being pressed too deeply, and accurate riveting of the plunger seat to the plunger ball head of the plunger body can be ensured.

Preferably, the riveting assembly comprises a riveting bracket and a riveting oil cylinder; the riveting support is arranged on the frame and is positioned above the riveting positioning assembly, the cylinder body of the riveting oil cylinder is longitudinally arranged on the top plate of the riveting support, the lower end of the telescopic rod of the riveting oil cylinder penetrates through the top plate of the riveting support to be connected with a riveting head, and the telescopic rod of the riveting oil cylinder is connected with a telescopic rod connecting plate; the telescopic rod connecting plate is longitudinally connected with a riveting guide rod; the top end of the riveting guide rod penetrates through the top plate of the riveting support and is limited on the top plate of the riveting support. The riveting oil cylinder on the riveting assembly drives the riveting head to press the plunger seat, so that the plunger seat is riveted to the plunger ball head of the plunger body, and convenience and accuracy of riveting are improved.

Preferably, the riveting transfer device comprises a transfer clamping jaw assembly, a turnover assembly and a riveting transfer assembly; the transfer clamping jaw assembly is arranged on the feeding transfer device, and the transfer clamping jaw assembly and the plunger clamping assembly have the same structure; the overturning assembly comprises an overturning bracket, an overturning cylinder and an overturning clamping jaw cylinder; the overturning bracket is arranged on the feeding transfer device; the overturning cylinder is arranged on the overturning bracket, the overturning clamping jaw cylinder is arranged on an overturning part of the overturning cylinder, and the overturning clamping jaw cylinder is positioned below the transferring clamping jaw assembly; the riveting transfer assembly comprises a riveting transfer bracket, a riveting lifting transfer cylinder, a riveting rotary cylinder, a riveting horizontal transfer cylinder and a riveting transfer clamping jaw cylinder; the riveting lifting transfer cylinder is arranged at the top of the riveting transfer bracket, and a lifting part of the riveting lifting transfer cylinder is connected with a lifting bracket; the riveting lifting transfer cylinder is arranged on the lifting frame, the riveting horizontal transfer cylinder is arranged on the rotating part of the riveting lifting transfer cylinder, and the riveting transfer clamping jaw cylinder is arranged on the horizontal moving part of the riveting horizontal transfer cylinder. The plunger is clamped and continuously horizontally conveyed to the discharge end of the linear moving sliding table through the transferring clamping jaw assembly on the riveting transferring device, so that the transfer is convenient, and the conveying space is saved; the plunger seat on the plunger after riveting is located below by conveniently clamping the plunger after riveting and overturning 180 degrees through the overturning assembly, and finally, the overturned plunger is transferred to the plunger seat rolling and loosening device through the riveting transfer assembly, so that the plunger seat rolling and loosening device can be conveniently and directly used for rolling and loosening.

Preferably, the plunger seat rolling and loosening device comprises a rolling and loosening bracket, a rotary supporting component, a rolling and loosening positioning component and a plurality of rolling and loosening components; the rotary supporting assembly comprises a rotary motor, a rotary supporting seat and a plunger limiting carrier; the rotating motor is arranged on the rolling loose bracket; the rotating shaft of the rotating motor is connected with the bottom of the rotating support seat, and the rotating support seat is provided with a carrier limiting groove for placing a plunger limiting carrier; the plunger limiting carrier is arranged in the carrier limiting groove, and a plunger seat groove for limiting the plunger seat is formed in the top of the plunger limiting carrier; the rolling loose positioning assembly comprises a rolling loose positioning bracket and a rolling loose positioning oil cylinder; the rolling loose positioning bracket is arranged on the rolling loose bracket; the rolling loose positioning oil cylinder is arranged at the top of the rolling loose positioning bracket, and a telescopic rod of the rolling loose positioning oil cylinder penetrates through the rolling loose positioning bracket to be connected with the rolling loose positioning connecting frame; the bottom of the rolling loose positioning connecting frame is connected with a rolling loose positioning rod; the lower end of the rolling loose positioning rod is in a reverse conical shape; the center of the rolling loose positioning rod is aligned with the center of the plunger seat groove; the rolling loose assemblies are circumferentially arranged at intervals on the outer side of the rotary supporting seat; each loosening component comprises a loosening supporting block and a loosening cylinder; the rolling and loosening support block is arranged on the rolling and loosening support, the rolling and loosening cylinder is horizontally arranged on the rolling and loosening support block, and a rolling and loosening connecting rod is connected to a telescopic rod of the rolling and loosening cylinder; the rolling loosening limiting groove is formed in the rolling loosening connecting rod, and the groove opening of the rolling loosening limiting groove faces the rotary supporting seat; the rolling loosening limiting groove is rotationally connected with a rolling loosening wheel arranged in the horizontal direction, and the rolling loosening wheel is used for horizontally rolling to the outer wall of the plunger seat, so that the plunger seat can be rotationally connected to the plunger ball head after being loosened. The plunger seat on the plunger after riveting is limited and supported conveniently through the rotary supporting component, so that the stability of the plunger seat in the loosening process is improved, and the loosening precision is improved conveniently; the plunger body on the plunger is convenient to limit after riveting through rolling loose locating component, so that the rolling loose locating component props against the plunger inner cavity of the plunger rod, the plunger is limited up and down after riveting, shaking or moving of the plunger after riveting is prevented in the rotating process, stability in the rotating process is improved, and further accurate rolling loose processing is facilitated by the rolling loose locating component.

Preferably, the device also comprises a blanking device; the blanking device comprises a first conveying belt assembly and a second conveying belt assembly; the first conveyer belt component is arranged in the front-back direction and is positioned between the overturning component and the riveting transfer component, and the second conveyer belt component is arranged in the horizontal direction and is positioned at the discharge end side of the first conveyer belt component; and a discharging collecting frame is arranged at the discharging end side of the second conveying belt assembly. The first conveying belt assembly and the second conveying belt assembly on the blanking device are convenient to convey finished plungers after being processed into the blanking collecting frame, and the finished plungers are convenient to collect uniformly for subsequent processing.

An assembling method of hydraulic pump plunger assembling equipment, the hydraulic pump plunger assembling equipment comprises the following steps:

s1, feeding a plunger body and a plunger seat: arranging the plunger body and the plunger seat in sequence in a containing groove in a loading containing plate on the loading assembly; the feeding positioning driving piece drives the feeding containing plate to be conveyed to the lower part of the transferring assembly backwards;

S2, transferring the plunger body and the plunger seat: the plunger clamping assembly and the plunger seat clamping assembly are driven to move above the feeding containing plate through the linear moving sliding table, and a plunger body is clamped through the plunger clamping assembly; clamping a plunger seat through a plunger seat clamping assembly; the plunger body and the plunger seat are transferred to the riveting device through the linear moving sliding table;

S3, riveting the plunger body and the plunger seat: the positioning support seat on the riveting device is in a lifting state, the plunger body is placed into the positioning support seat on the riveting device through the plunger clamping assembly, and the plunger body on the positioning support seat is lowered through the lifting oil cylinder; the first connecting block and the second connecting block are respectively driven to move by the first positioning oil cylinder and the second positioning oil cylinder, so that the first connecting block and the second connecting block are clamped and attached, the plunger body on the positioning support seat is lifted and positioned between the first connecting block and the second connecting block by the lifting oil cylinder, and the plunger ball head of the plunger body is positioned between the two first half grooves; placing the plunger seat on the plunger ball head between the first connecting block and the second connecting block through the plunger seat clamping assembly, limiting the outer wall of the plunger seat in the two first half grooves, riveting the outer peripheral wall of the lower part of the plunger seat onto the plunger ball head along the inner peripheral wall of the first half grooves through the riveting assembly, and closing in the outer peripheral wall of the lower part of the plunger seat along the inner peripheral wall of the first half grooves; fixedly connecting a plunger seat and a plunger ball head;

S4, transferring after riveting: after the plunger seat is riveted to the plunger ball head, the transfer clamping jaw assembly is driven by the linear movement sliding table to clamp and transfer the riveted plunger to the overturning assembly, and the plunger body is overturned by 180 degrees through the overturning assembly, so that the plunger seat which is originally positioned above the plunger body is positioned below the plunger body after being overturned; transferring the overturned plunger to the plunger seat rolling and loosening device through the riveting transfer assembly;

S5, rolling loose the plunger seat: the plunger seat positioned below is put into a plunger seat groove of the plunger limiting carrier, so that the plunger body is vertically arranged, the rolling and loosening positioning rod is driven to descend by the rolling and loosening positioning oil cylinder, so that the lower end of the rolling and loosening positioning rod extends into the plunger inner cavity of the plunger body, the plunger after riveting is fixed in an up-and-down limiting way, the plunger after riveting is driven to rotate by a rotating motor, rolling and loosening the outer wall of the plunger seat through the loosening rollers on the loosening rolling assemblies; the plunger seat is limited on the plunger ball head; simultaneously, the plunger seat and the plunger ball head realize relative rotation;

s6, finishing blanking: after the rolling loosening processing is finished, the finished product is clamped and transferred to a blanking device through a riveting transfer assembly to be conveyed and blanked.

In summary, the invention has the advantages of realizing the automatic one-time assembly of the plunger body and the plunger seat, greatly improving the assembly efficiency of the plunger body and the plunger seat, and simultaneously ensuring the assembly consistency and the assembly quality of the plunger body and the plunger seat.

Drawings

Fig. 1 is a schematic structural view of a hydraulic pump plunger assembly apparatus of the present invention.

Fig. 2 is a schematic structural view of a feeding assembly in the present invention.

Fig. 3 is a schematic view of the transfer assembly and the rivet press transfer device of the present invention.

Fig. 4 is an enlarged view of a portion of fig. 3a in the present invention.

Fig. 5 is a schematic structural view of the riveting device in the present invention.

FIG. 6 is a schematic structural view of the rivet positioning assembly of the present invention.

Fig. 7 is a schematic structural view of a riveting positioning block in the present invention.

Fig. 8 is a schematic structural view of a plunger seat rolling and loosening device in the present invention.

Fig. 9 is a partial enlarged view of the present invention at B in fig. 8.

Fig. 10 is a schematic view of the structure of a hydraulic pump plunger to which the present invention is assembled.

Wherein: 1. a frame; 2. a feeding transfer device; 21. a feeding assembly; 211. a feeding bracket; 212. a loading containing plate; 213. a holding groove; 214. holding the slide rail; 215. feeding positioning driving piece; 22. a transfer assembly; 221. linearly moving the sliding table; 222. a plunger clamping assembly; 223. a plunger seat clamping assembly; 224. a first slide plate; 225. clamping a lifting cylinder; 226. clamping an air cylinder; 227. clamping a lifting plate; 2271. a guide rod; 228. a first clamping plate; 229. a second clamping plate; 3. riveting device; 31. riveting and positioning components; 311. a first positioning frame; 3111. a connecting rod; 312. a second positioning frame; 313. a first positioning oil cylinder; 314. a second positioning oil cylinder; 315. positioning a supporting seat; 3151. a plunger placement groove; 316. a first connection block; 317. a second connection block; 318. riveting and pressing a positioning block; 319. a stepped half groove; 3190. riveting and pressing a positioning inclined plane; 3191. a first half-groove; 3192. a second half-groove; 3193. a third half groove; 32. riveting assembly; 321. riveting a bracket; 322. riveting oil cylinder; 323. a riveting head; 324. a telescopic rod connecting plate; 325. riveting a guide rod; 4. riveting transfer device; 41. a transfer jaw assembly; 410. a second slide plate; 42. a flip assembly; 421. overturning the bracket; 422. a turnover cylinder; 423. a turnover clamping jaw cylinder; 43. riveting and transferring the assembly; 431. riveting and transferring the bracket; 432. riveting lifting transfer cylinder; 433. riveting a rotary cylinder; 434. riveting a horizontal transfer cylinder; 435. riveting and transferring clamping jaw air cylinders; 436. a lifting frame; 5. a plunger seat rolling and loosening device; 50. loosening the bracket by rolling; 51. a rotary support assembly; 511. a rotating electric machine; 512. a rotary support base; 513. plunger limiting carrier; 514. a plunger seat groove; 52. a rolling loose positioning component; 521. loosening the positioning bracket; 522. rolling loose the positioning cylinder; 523. rolling loose the positioning connecting frame; 524. loosening the positioning rod; 53. a rolling loosening assembly; 531. loosening the supporting block; 532. a loosening cylinder; 533. loosening the connecting rod; 534. rolling loose the limit groove; 535. a loosening roller; 6. a blanking device; 61. a first conveyor belt assembly; 62. a second conveyor belt assembly; 63. a blanking and collecting frame; 7. a plunger body; 71. plunger ball head; 72. a plunger rod; 73. a plunger inner cavity; 8. a plunger seat; 81. rolling loose the noodles.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

As shown in fig. 10, which shows a hydraulic pump plunger to be processed according to the present invention, the hydraulic pump plunger includes a plunger body 7 and a plunger seat 8; the plunger body 7 comprises a plunger ball 71 and a plunger rod 72; plunger rod 72 is provided with a plunger cavity 73; during assembly, the plunger seat 8 is required to be riveted to the plunger ball 71, and the rolling and loosening surface 81 of the plunger seat 8 is rolled and loosened, so that the plunger seat 8 can be universally and movably connected to the plunger ball 71, and the structure of the plunger seat is similar to that of a universal joint ball.

As shown in fig. 1, the hydraulic pump plunger assembling equipment comprises a frame 1, and a feeding transfer device 2, a riveting device 3, a riveting transfer device 4 and a plunger seat rolling and loosening device 5 which are arranged on the frame 1; the feeding transfer device 2 is used for feeding and transferring the plunger body 7 and the plunger seat 8 to the riveting device 3; the riveting device 3 is used for riveting the plunger seat 8 to the plunger ball head 71 of the plunger body 7; the riveting transfer device 4 is used for transferring the riveted plunger to the plunger seat rolling and loosening device 5, the plunger seat rolling and loosening device 5 is used for rolling and loosening the peripheral wall of the plunger seat 8, so that the plunger seat 8 is limited on the plunger ball head 71, and meanwhile, the plunger seat 8 and the plunger ball head 71 can move relatively. The equipment realizes that the plunger body 7 and the plunger seat 8 are automatically assembled at one time, so that the assembly efficiency of the plunger body 7 and the plunger seat 8 is greatly improved, and meanwhile, the assembly consistency and the assembly quality of the plunger body 7 and the plunger seat 8 are ensured.

As shown in fig. 1 and 2, the feeding and transferring device 2 comprises a feeding assembly 21 and a transferring assembly 22; the feeding assembly 21 comprises a feeding bracket 211, a feeding containing plate 212 and a feeding positioning driving piece 215; a plurality of holding grooves 213 are arranged on the top of the loading holding plate 212 in an array manner; the plurality of holding grooves 213 are double-row, when putting plunger body 7 and plunger seat 8, be fore-and-aft direction and put plunger body 7 in a row, be fore-and-aft direction and put plunger seat 8 in a row, arrange in proper order and set up and when putting plunger body 7 in the right side of plunger seat 8, be convenient for when being convenient for right horizontal transfer like this put plunger body 7 in advance, put plunger seat 8 afterwards, make whole transfer more smooth and easy. The feeding containing plate 212 is slidably connected to the feeding bracket 211 in the front-rear direction through the containing slide rail 214, the feeding positioning driving piece 215 is arranged on the feeding bracket 211, the driving part of the feeding positioning driving piece 215 is fixedly connected with the feeding containing plate 212, and the feeding positioning driving piece 215 drives the feeding containing plate 212 to slide along the containing slide rail 214 front-rear; the transfer assembly 22 is used for transferring the plunger body and the plunger seat on the holding groove 213 to the riveting device 3. The feeding containing plate 212 can be driven to move and position back and forth on the containing slide rail 214 through the feeding positioning driving piece 215 on the feeding transfer device 2, so that the plunger body 7 and the plunger seat 8 in the containing groove 213 in the feeding containing plate 212 are conveniently grabbed and transferred one by the transfer assembly 22, and the feeding efficiency is improved.

As shown in fig. 3 and 4, the transfer assembly 22 includes a linear movement slide 221, a plunger gripping assembly 222, and a plunger holder gripping assembly 223; the linear moving slipway 221 is arranged on the frame 1 in the horizontal direction; the plunger clamping assembly 222 and the plunger seat clamping assembly 223 are respectively arranged on a first sliding plate 224 of the linear moving sliding table 221; the plunger clamping assembly 222 and the plunger seat clamping assembly 223 are arranged in parallel, and the plunger clamping assembly 222 is positioned on the right side of the plunger seat clamping assembly 223; the plunger clamping assembly 222 and the plunger seat clamping assembly 223 on the first sliding plate 224 are driven by the linear moving sliding table 221, so that the plunger clamping assembly 222 can be directly moved to the plunger body 7 of the feeding containing plate 212, the plunger seat clamping assembly 223 can be moved to the plunger seat 8 of the feeding containing plate 212, the plunger clamping assembly 222 is used for clamping and transferring the plunger body 7 to the riveting device 3, and the plunger seat clamping assembly 223 is used for clamping and transferring the plunger seat 8 to the riveting device 3.

As shown in fig. 4, the plunger clamping assembly 222 and the plunger seat clamping assembly 223 each include a clamping lift cylinder 225 and a clamping cylinder 226; the clamping lifting air cylinder 225 is longitudinally arranged on the first sliding plate 224, the telescopic rod of the clamping lifting air cylinder 225 is connected with the clamping lifting plate 227, the clamping lifting air cylinder 225 drives the clamping lifting plate 227 to lift and position, and two sides of the clamping lifting plate 227 are connected to the first sliding plate 224 in a lifting manner through the guide rod 2271, so that the lifting fluency is further improved through the guide rod 2271. The clamping cylinder 226 is arranged on the clamping lifting plate 227 in a horizontal direction; two first clamping plates 228 matched with the plunger body 7 are arranged on a clamping cylinder 226 on the plunger clamping assembly 222; the first clamping plate 228 is matched with the structure of the plunger body 7, so that clamping is facilitated. The clamping cylinder 226 on the plunger seat clamping assembly 223 is provided with two second clamping plates 229 matched with the plunger seat, and the two second clamping plates 229 are matched with the plunger seat 8 in structure so as to facilitate clamping. The plunger clamping assembly 222 on the transfer assembly 22 is convenient for grabbing the plunger bodies 7 on the feeding containing plate 212 one by one, and the plunger seat clamping assembly 223 on the transfer assembly 22 is convenient for grabbing the plunger seats 8 on the feeding containing plate 212 one by one, so that one plunger body 7 and one plunger seat 8 are transferred to the riveting device 3 at the same time, and the subsequent riveting of the plunger seats 8 to the plunger ball heads 71 of the plunger bodies 7 is facilitated.

When the feeding transfer device 2 acts, firstly, the plunger body 7 and the plunger seat 8 are fully arranged on the containing groove 213 of the feeding containing plate 212, the feeding positioning driving piece 215 drives the containing groove 213 of the first row on the rear side of the feeding containing plate 212 to move to the lower side of the transfer device 22, the plunger clamping component 222 and the plunger seat clamping component 223 on the first sliding plate 224 are driven to move to the containing groove 213 of the first row on the rear side by the linear moving sliding table 221, the clamping cylinder 226 is driven to descend by the clamping lifting cylinder 225 on the plunger clamping component 222, the plunger seat 8 is clamped by the two first clamping plates 228 of the clamping cylinder 226 in the same mode as the plunger clamping component 222, after clamping, the plunger body 7 and the plunger seat 8 are conveyed to the upper side of the riveting device 3 by the linear moving sliding table 221, the plunger seat 8 is firstly placed in the riveting device 3, after the first row of clamping, the plunger seat 212 is transferred to the lower side of the second row, and the riveting device 22 is continuously clamped.

As shown in fig. 5, the riveting device 3 includes a riveting positioning assembly 31 and a riveting assembly 32; the riveting positioning assembly 31 comprises a first positioning frame 311, a second positioning frame 312, a first positioning oil cylinder 313, a second positioning oil cylinder 314 and a positioning support seat 315; the first positioning frame 311 and the second positioning frame 312 are symmetrically arranged on the frame 1, two connecting rods 3111 are connected between the first positioning frame 311 and the second positioning frame 312, and the connectivity and the alignment degree of the first positioning frame 311 and the second positioning frame 312 are improved through the connecting rods 3111, so that the plunger body 7 and the plunger seat 8 can be ensured to be better clamped and limited. The first positioning oil cylinder 313 is horizontally arranged on the first positioning frame 311, and a telescopic rod of the first positioning oil cylinder 313 penetrates through the first positioning frame 311 to be connected with the first connecting block 316, and the first connecting block 316 is driven to horizontally move and position by the first positioning oil cylinder 313. The second positioning cylinder 314 is horizontally arranged on the second positioning frame 312; and the telescopic rod of the second positioning cylinder 314 passes through the second positioning frame 312 to be connected with a second connecting block 317, and the second connecting block 317 is driven to horizontally move and position by the second positioning cylinder 314. The positioning support seat 315 is connected to the frame 1 in a lifting manner through a lifting oil cylinder and is positioned between the first connecting block 316 and the second connecting block 317; the positioning support seat 315 is provided with a plunger placement groove 3151 for placing the plunger body 7; the first connecting block 316 and the second connecting block 317 are clamped and attached to the plunger body 7 in the plunger positioning groove 3151, and meanwhile, the plunger seat 8 is limited, so that the plunger seat 8 is accurately and stably riveted on the plunger ball head 71 of the plunger body 7. The riveting component 32 is used for riveting the plunger seat 8 to the plunger ball head 71 of the plunger body 7, so that the plunger seat 8 is fixedly connected with the plunger ball head 71 of the plunger body 7. The plunger body 7 is conveniently placed in the inner side of the positioning support seat 315, so that the plunger body 7 is limited, the first positioning oil cylinder 313 drives the first connecting block 316 to move towards the positioning support seat 315, the second positioning oil cylinder 314 drives the second connecting block 317 to move towards the positioning support seat 315, and then the first connecting block 316 and the second connecting block 317 are attached to each other, so that the plunger body 7 on the positioning support seat 315 is located in the first connecting block 316 and the second connecting block 317, and meanwhile the plunger seat 8 is limited at the tops of the first connecting block 316 and the second connecting block 317, so that the plunger seat 8 is conveniently riveted to the plunger body 7 subsequently.

As shown in fig. 6 and 7, the first connection block 316 and the second connection block 317 are symmetrically disposed, so that clamping is better achieved. The first connecting block 316 and the second connecting block 317 are respectively provided with a riveting positioning block 318; the two riveting positioning blocks 318 are symmetrically arranged and combined to form a cylinder; the middle part of the riveting positioning block 318 is longitudinally provided with a step half groove 319 with the diameter being enlarged from top to bottom; the stepped half grooves 319 of the two rivet positioning blocks 318 combine to form a stepped circular groove. The stepped half groove 319 includes a first half groove 3191, a second half groove 3192, and a third half groove 3193 in this order from top to bottom; the first half groove 3191 is used for limiting the plunger seat 8, and meanwhile, the plunger ball head 71 of the plunger body 7 is also limited in the first half groove 3191 during riveting; the plunger mat 8 and the plunger ball 71 are swaged at the first half groove 3191. During riveting, the outer peripheral wall of the plunger seat 8 is fixed on the plunger ball head 71 of the plunger body 7 along the closing-in riveting of the inner wall of the first half groove 3191, so that the outer peripheral wall of the plunger seat 8 can deform during riveting, the plunger ball head 71 is wrapped along the inner wall of the first half groove 3191, and the plunger seat 8 can be accurately riveted to the plunger ball head 71 of the plunger body 7. The outer edge in top of first half groove 3191 is provided with riveting location inclined plane 3190, is convenient for carry out spacingly with the step face at plunger seat 8 top through riveting location inclined plane 3190, prevents that plunger seat 8 from impressing too deeply, can ensure to make the accurate riveting of plunger seat 8 to the plunger bulb 71 of plunger body 7. The positioning support seat 315 is in a stepped cylindrical shape, the plunger placing groove 3151 is located at the center of the stepped cylindrical shape, and the second half groove 3192 and the third half groove 3193 are used for limiting the positioning support seat 315 in the stepped cylindrical shape and the plunger body 7 on the positioning support seat 315. The second half groove 3192 and the third half groove 3193 on the riveting positioning block 318 are convenient for limiting the positioning support seat 315, and meanwhile, the plunger body 7 on the positioning support seat 315 can be limited to a certain extent, so that the plunger body 7 is prevented from moving greatly in the riveting process.

As shown in fig. 5, the riveting assembly 32 includes a riveting bracket 321 and a riveting cylinder 322; the riveting support 321 is arranged on the frame 1 and is positioned above the riveting positioning assembly 31, the cylinder body of the riveting oil cylinder 322 is longitudinally arranged on the top plate of the riveting support 321, the lower end of the telescopic rod of the riveting oil cylinder 322 penetrates through the top plate of the riveting support 321 to be connected with the riveting head 323, the bottom surface of the riveting head 323 is horizontal, so that the bottom surface of the riveting head 323 can be smoothly pressed to the top of the plunger seat 8 in the pressing process no matter whether the plunger seat 8 is smoothly placed or not during riveting, the originally inclined top is restored to a smooth state along with the pressing of the riveting head 323, and finally the aim of smoothly aligned riveting to the plunger ball head 71 no matter whether the plunger seat 8 is inclined or not can be achieved. A telescopic rod connecting plate 324 is connected to a telescopic rod of the riveting oil cylinder 322; the telescopic link connecting plate 324 is longitudinally connected with a riveting guide rod 325, and the lifting fluency is improved through the riveting guide rod 325. The top end of the riveting guide rod 325 passes through the top plate of the riveting bracket 321 and is limited on the top plate of the riveting bracket 321. The riveting oil cylinder 322 on the riveting assembly 32 drives the riveting head 323 to press the plunger seat 8, so that the plunger seat 8 is riveted to the plunger ball head 71 of the plunger body 7, and convenience and accuracy of riveting are improved.

When the riveting device 3 acts, the positioning support seat 315 is in a lifting state, the first connecting block 316 and the second connecting block 317 are in an open state, the plunger body 7 is placed into the plunger placing groove 3151 of the positioning support seat 315, and the plunger body 7 on the positioning support seat 315 is driven to descend through the lifting oil cylinder, so that the plunger ball head 71 of the plunger body 7 is positioned below the first half groove 3191; the first connecting block 316 is driven to move towards the positioning support seat 315 by the first positioning oil cylinder 313, the second positioning oil cylinder 314 drives the second connecting block 317 to move towards the positioning support seat 315, the riveting positioning block 318 on the first connecting block 316 is attached to the riveting positioning block 318 of the second connecting block 317, the plunger body 7 on the positioning support seat 315 is driven to ascend by the lifting oil cylinder, the plunger ball head 71 of the plunger body 7 is ascended and positioned in the first half groove 3191, the top of the first half groove 3191 at the extending position of the top of the plunger ball head 71 is enabled, the plunger body 7 on the positioning support seat 315 is limited by the second half groove 3192 and the third half groove 3193 on the riveting positioning block 318, and the transition section of the plunger rod 72 and the plunger ball head 71 is located at the transition section of the first half groove 3191 and the second half groove 3192, so that the plunger body 7 is matched with the step half groove 319 is achieved. The plunger housing 8 is then placed into the circular recess formed by the combination of the two first half recesses 3191, such that the outer peripheral wall of the plunger housing 8 abuts against the inner peripheral wall of the first half recess 3191, and such that the plunger housing 8 is pressed against the plunger ball 71. The plunger seat 8 is pressed by the riveting head 323 on the riveting oil cylinder 322 on the riveting assembly 32, so that the outer peripheral wall of the plunger seat 8 is pressed down along the inner peripheral wall of the first half groove 3191 to deform and close up and is wrapped on the plunger ball head 71 of the plunger body 7, and the plunger seat 8 and the plunger body 7 are tightly matched and fixed. If the plunger seat 8 is riveted to the plunger ball head 71, the riveting head 323 is still continuously pressed down, a pressure value is set, and when the pressing force of the riveting head 323 is larger than the supporting force of the lifting oil cylinder, the plunger body 7 on the positioning support seat 315 is pressed down together, so that the plunger seat 8 is prevented from being riveted too deeply, and the riveting precision is ensured.

As shown in fig. 1,3 and 8, the rivet transfer device 4 includes a transfer jaw assembly 41, a flip assembly 42 and a rivet transfer assembly 43; the transfer clamping jaw assembly 41 is arranged on the second sliding plate 410 of the linear movement sliding table 221, and the transfer clamping jaw assembly 41 and the plunger clamping assembly 222 have the same structure; after the plunger is clamped by the transfer clamping jaw assembly 41 after riveting, the plunger is conveyed to the discharge end of the linear movement sliding table 221 along the horizontal right direction by the linear movement sliding table 221. The turnover assembly 42 includes a turnover bracket 421, a turnover cylinder 422, and a turnover jaw cylinder 423; the turnover bracket 421 is disposed on the discharge end of the linear movement slipway 221; the turnover cylinder 422 is arranged on the turnover bracket 421, the turnover clamping jaw cylinder 423 is arranged on the turnover part of the turnover cylinder 422, and the turnover clamping jaw cylinder 423 is positioned below the transfer clamping jaw assembly 41; the riveting plunger on the transfer jaw assembly 41 is clamped by the overturning jaw cylinder 423, and 180-degree overturning is performed on the riveting plunger by the overturning cylinder 422. The riveting transfer assembly 43 includes a riveting transfer bracket 431, a riveting lifting transfer cylinder 432, a riveting rotary cylinder 433, a riveting horizontal transfer cylinder 434, and a riveting transfer jaw cylinder 435; the riveting lifting transfer cylinder 432 is arranged at the top of the riveting transfer bracket 431, and a lifting part of the riveting lifting transfer cylinder 432 is connected with a lifting frame 436; the rivet lifting transfer cylinder 432 is provided on the lifter 436, the rivet horizontal transfer cylinder 434 is provided on the rotating portion of the rivet lifting transfer cylinder 432, and the rivet transfer jaw cylinder 435 is provided on the horizontal moving portion of the rivet horizontal transfer cylinder 434. The plunger is clamped and continuously horizontally conveyed to the discharge end of the linear moving sliding table 221 after riveting by the transferring clamping jaw assembly 41 on the riveting transferring device 4, so that the transferring is convenient, and the conveying space is saved; the turnover assembly 42 is convenient for clamping the plunger after riveting and then turning over 180 degrees, so that the plunger seat 8 on the plunger after riveting is positioned below, and finally the riveting lifting transfer cylinder 432 and the riveting horizontal transfer cylinder 434 on the riveting transfer assembly 43 lift and horizontally move, so that the riveting transfer clamping jaw cylinder 435 clamps the plunger after the turnover, the clamped plunger rotates by 180 degrees horizontally through the riveting rotary cylinder 433, and the plunger is placed on the plunger seat rolling and loosening device 5 through the riveting lifting transfer cylinder 432 and the riveting horizontal transfer cylinder 434, so that the plunger seat rolling and loosening device 5 can be conveniently and directly rolled and loosened.

As shown in fig. 8 and 9, the plunger seat rolling and loosening device 5 comprises a rolling and loosening bracket 50, a rotary supporting assembly 51, a rolling and loosening positioning assembly 52 and a plurality of rolling and loosening assemblies 53; the rotary support assembly 51 includes a rotary motor 511, a rotary support base 512, and a plunger limit carrier 513; the rotary motor 511 is provided on the roll-loose stand 50; the rotation axis of the rotation motor 511 is connected to the bottom of the rotation support base 512, and the rotation motor 511 drives the rotation support base 512 to rotate, so that the plunger base 8 can be conveniently loosened by rotating during loosening. The rotary support base 512 is provided with a carrier limit groove for placing the plunger limit carrier 513; the plunger limiting carrier 513 is disposed in the carrier limiting groove, and a plunger seat groove 514 for limiting the plunger seat is disposed at the top of the plunger limiting carrier 513. The plunger mat 8 on the plunger after riveting is placed on the plunger mat groove 514 by the rivet transferring device 4.

The roll-loose positioning assembly 52 comprises a roll-loose positioning bracket 521 and a roll-loose positioning cylinder 522; the roll-loose positioning bracket 521 is arranged on the roll-loose bracket 50; the roll-loose positioning oil cylinder 522 is arranged at the top of the roll-loose positioning bracket 521, and a telescopic rod of the roll-loose positioning oil cylinder 522 penetrates through the roll-loose positioning bracket 521 to be connected with a roll-loose positioning connecting frame 523; the bottom of the roll loosening positioning connecting frame 523 is connected with a roll loosening positioning rod 524, and the roll loosening positioning rod 524 on the roll loosening positioning connecting frame 523 is driven by the roll loosening positioning oil cylinder 522 to perform lifting movement positioning. The lower extreme of rolling loose locating lever 524 is the coniform, conveniently makes rolling loose locating lever 524 stretch into in the plunger inner chamber 73 of plunger rod 72, can guarantee to carry out spacingly with plunger body 7 when rotatory, prevents that plunger body 7 from appearing rocking in rotatory, ensures the stability when rolling loose. The center of the roll-off detent lever 524 is aligned with the center of the plunger seat recess 514 to ensure alignment and prevent eccentricity during rotation.

The three rolling loose assemblies 53 are circumferentially arranged at intervals on the outer side of the rotary supporting seat 512; and the contained angle between two adjacent roll loose subassembly 53 is 120, through three stability and can roll loose processing fast when rolling loose, can prevent simultaneously also that roll loose from can extruding to a certain side, further ensures roll loose precision and roll loose quality. Each of the roll-off assemblies 53 includes a roll-off support block 531 and a roll-off cylinder 532; the rolling loose supporting block 531 is arranged on the rolling loose bracket 50, the rolling loose air cylinder 532 is horizontally arranged on the rolling loose supporting block 531, and a rolling loose connecting rod 533 is connected to a telescopic rod of the rolling loose air cylinder 532; the roll-loose connecting rod 533 is provided with a roll-loose limiting groove 534, and the groove opening of the roll-loose limiting groove 534 faces the rotary supporting seat 512; the loosening limiting groove 534 is rotationally connected with a loosening wheel 535 which is arranged in the horizontal direction, and the loosening wheel 535 on the loosening connecting rod 533 is driven by the loosening cylinder 532 to horizontally press against the loosening surface 81 of the plunger seat 8, so that the plunger seat 8 can be movably connected to the plunger ball head 71 after loosening.

The plunger seat 8 on the plunger after riveting is convenient to carry out limit support through the rotary support assembly 51, so that the stability of the plunger seat 8 in loosening is improved, and the loosening precision is convenient to improve; the plunger body 7 on the plunger after riveting is convenient to limit through the rolling loose positioning assembly 52, so that the rolling loose positioning assembly 52 butts against the plunger inner cavity 73 of the plunger rod 72, the plunger after riveting is limited up and down, the plunger after riveting is prevented from shaking or moving in the rotating process, the stability in the rotating process is improved, and the rolling loose assembly 53 is convenient to precisely roll loose.

As shown in fig. 1, the device also comprises a blanking device 6; the blanking device 6 comprises a first conveyor belt assembly 61 and a second conveyor belt assembly 62; the first conveyer belt assembly 61 is arranged in the front-back direction and is positioned between the turnover assembly 42 and the riveting transfer assembly 43, and the second conveyer belt assembly 62 is arranged in the horizontal direction and is positioned at the discharge end side of the first conveyer belt assembly 61; the discharge end side of the second conveyor belt assembly 62 is provided with a blanking collection frame 63. The first conveying belt assembly 61 and the second conveying belt assembly 62 on the blanking device 6 are convenient to convey finished plungers to the blanking collecting frame 63, and the finished plungers are convenient to collect uniformly for subsequent processing.

The assembly method of the hydraulic pump plunger assembly equipment is applied to the hydraulic pump plunger assembly equipment and comprises the following steps of:

S1, feeding a plunger body and a plunger seat: the plunger body 7 and the plunger seat 8 are placed in a containing groove 213 in a loading containing plate 212 on the loading assembly 21 in sequence; the feeding positioning driving piece 215 drives the feeding containing plate 212 to be conveyed to the lower part of the transferring assembly 22 backwards;

S2, transferring the plunger body and the plunger seat: the plunger clamping assembly 222 and the plunger seat clamping assembly 223 are driven to move above the upper material containing plate 212 through the linear moving sliding table 221, and one plunger body 7 is clamped through the plunger clamping assembly 222; clamping a plunger mat 8 by the plunger mat clamping assembly 223; and the plunger body 7 and the plunger seat 8 are transferred to the riveting device 3 through the linear moving sliding table 221;

S3, riveting the plunger body and the plunger seat: the positioning support seat 315 on the riveting device 3 is in a lifting state, the plunger body 7 is placed into the positioning support seat 315 on the riveting device 3 through the plunger clamping assembly 222, and the plunger body 7 on the positioning support seat 315 is lowered through the lifting oil cylinder; the first positioning oil cylinder 313 and the second positioning oil cylinder 314 respectively drive the first connecting block 316 and the second connecting block 317 to move, so that the first connecting block 316 and the second connecting block 317 are clamped and attached, the plunger body 7 on the positioning support seat 315 is lifted and positioned between the first connecting block 316 and the second connecting block 317 through the lifting oil cylinder, and the plunger ball head 71 of the plunger body 7 is positioned between the two first half grooves 3191; placing the plunger seat 8 on the plunger ball head 71 between the first connecting block 316 and the second connecting block 317 through the plunger seat clamping assembly 223, limiting the outer wall of the plunger seat 8 in the two first half grooves 3191, riveting the outer peripheral wall of the lower part of the plunger seat 8 on the plunger ball head 71 along the inner peripheral wall of the first half groove 3191 through the riveting assembly 32, and closing the outer peripheral wall of the lower part of the plunger seat 8 along the inner peripheral wall of the first half groove 3191; fixedly connecting the plunger seat 8 with the plunger ball head 71;

S4, transferring after riveting: after riveting the plunger seat 8 onto the plunger ball head 71, driving the transfer clamping jaw assembly 41 to clamp and transfer the riveted plunger to the turnover assembly 42 through the linear movement sliding table 221, and turning the plunger body 7 180 degrees through the turnover assembly 42 to enable the plunger seat 8 originally positioned above the plunger body 7 to be positioned below the plunger body 7 after turning; transferring the overturned plunger to the plunger seat rolling loosening device 5 through the riveting transfer assembly 43;

S5, rolling loose the plunger seat: the plunger seat 8 positioned below is placed into a plunger seat groove 514 of a plunger limiting carrier 513, so that the plunger body 7 is vertically placed, a rolling and loosening positioning rod 524 is driven to descend through a rolling and loosening positioning oil cylinder 522, the lower end of the rolling and loosening positioning rod 524 stretches into a plunger inner cavity 73 of the plunger body 7, the plunger after riveting is limited and fixed up and down, the plunger after riveting is driven to rotate through a rotating motor 511, and rolling and loosening processing is carried out on the outer wall of the plunger seat 8 through rolling and loosening wheels 535 on a plurality of rolling and loosening assemblies 53; the plunger seat 8 is limited on the plunger ball head 71; simultaneously, the plunger seat 8 and the plunger ball head 71 realize relative rotation;

S6, finishing blanking: after the rolling loosening process is finished, the finished product is clamped and transferred to the blanking device 6 through the riveting transfer assembly 43 to be conveyed and blanked.

In summary, the invention has the advantages of realizing the automatic one-time assembly of the plunger body 7 and the plunger seat 8, greatly improving the assembly efficiency of the plunger body 7 and the plunger seat 8, and simultaneously ensuring the assembly consistency and the assembly quality of the plunger body 7 and the plunger seat 8.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.

Claims

1. The hydraulic pump plunger assembling equipment is characterized by comprising a frame (1), and a feeding transfer device (2), a riveting device (3), a riveting transfer device (4) and a plunger seat rolling and loosening device (5) which are arranged on the frame (1); the feeding transfer device (2) is used for feeding and transferring the plunger body and the plunger seat to the riveting device (3); the riveting device (3) is used for riveting the plunger seat to the plunger ball head of the plunger body; the riveting device (3) comprises a riveting positioning assembly (31) and a riveting assembly (32); the riveting positioning assembly (31) comprises a first positioning frame (311), a second positioning frame (312), a first positioning oil cylinder (313), a second positioning oil cylinder (314) and a positioning support seat (315); The first positioning frame (311) and the second positioning frame (312) are symmetrically arranged on the frame (1), and two connecting rods (3111) are connected between the first positioning frame (311) and the second positioning frame (312); the first positioning oil cylinder (313) is horizontally arranged on the first positioning frame (311), and a telescopic rod of the first positioning oil cylinder (313) penetrates through the first positioning frame (311) to be connected with a first connecting block (316); the second positioning oil cylinder (314) is horizontally arranged on the second positioning frame (312); the telescopic rod of the second positioning oil cylinder (314) penetrates through the second positioning frame (312) to be connected with a second connecting block (317); The positioning support seat (315) is connected to the frame (1) in a lifting manner through a lifting oil cylinder and is positioned between the first connecting block (316) and the second connecting block (317); a plunger placement groove (3151) for placing the plunger body is arranged on the positioning support seat (315); the first connecting block (316) and the second connecting block (317) are clamped and attached to the plunger body in the limit plunger placing groove (3151); the riveting assembly (32) is used for riveting and assembling the plunger seat onto the plunger ball head of the plunger body, so that the plunger seat is fixedly connected with the plunger ball head of the plunger body; the first connecting block (316) and the second connecting block (317) are symmetrically arranged, and riveting positioning blocks (318) are arranged on the first connecting block (316) and the second connecting block (317); The riveting positioning block (318) is longitudinally provided with a stepped half groove (319) with the diameter being increased from top to bottom; the step half groove (319) comprises a first half groove (3191), a second half groove (3192) and a third half groove (3193) from top to bottom in sequence; the first half groove (3191) is used for limiting the plunger seat and enabling the plunger seat to be closed and fixed on a plunger ball head of the plunger body along the inner wall of the first half groove (3191) during riveting, and a riveting positioning inclined plane (3190) is arranged at the outer edge of the top of the first half groove (3191); the positioning support seat (315) is in a stepped cylindrical shape, the plunger placing groove (3151) is positioned in the center of the stepped cylinder, and the second half groove (3192) and the third half groove (3193) are used for limiting the positioning support seat (315) which is in the stepped cylindrical shape; The riveting transfer device (4) is used for transferring the riveted plunger to the plunger seat rolling loosening device (5), the plunger seat rolling loosening device (5) is used for rolling loosening the plunger seat, so that the plunger seat is limited on the plunger ball head of the plunger body, and meanwhile, the plunger seat and the plunger ball head can move relatively; the plunger seat rolling and loosening device (5) comprises a rolling and loosening bracket (50), a rotary supporting component, a rolling and loosening positioning component and a plurality of rolling and loosening components; the rotary support assembly comprises a rotary motor (511), a rotary support seat (512) and a plunger limiting carrier (513); the rotating motor (511) is arranged on the rolling loose bracket (50); The rotating shaft of the rotating motor (511) is connected with the bottom of the rotating support seat (512), and a carrier limiting groove for placing a plunger limiting carrier (513) is formed in the rotating support seat (512); the plunger limiting carrier (513) is arranged in the carrier limiting groove, and a plunger seat groove (514) for limiting the plunger seat is formed in the top of the plunger limiting carrier (513); the rolling and loosening positioning assembly comprises a rolling and loosening positioning bracket (521) and a rolling and loosening positioning oil cylinder (522); the rolling loose positioning bracket (521) is arranged on the rolling loose bracket (50); the rolling and loosening positioning oil cylinder (522) is arranged at the top of the rolling and loosening positioning bracket (521), and a telescopic rod of the rolling and loosening positioning oil cylinder (522) penetrates through the rolling and loosening positioning bracket (521) to be connected with a rolling and loosening positioning connecting frame (523); The bottom of the rolling loose positioning connecting frame (523) is connected with a rolling loose positioning rod (524); the lower end of the rolling loose positioning rod (524) is in a reverse conical shape; the center of the rolling loose positioning rod (524) is aligned with the center of the plunger seat groove (514); the plurality of rolling loose assemblies are circumferentially arranged at intervals on the outer side of the rotary supporting seat (512); each rolling and loosening assembly comprises a rolling and loosening supporting block (531) and a rolling and loosening cylinder (532); the rolling loosening supporting block (531) is arranged on the rolling loosening support (50), the rolling loosening cylinder (532) is horizontally arranged on the rolling loosening supporting block (531), and a rolling loosening connecting rod (533) is connected to a telescopic rod of the rolling loosening cylinder (532); a rolling-loosening limiting groove (534) is formed in the rolling-loosening connecting rod (533), and a groove opening of the rolling-loosening limiting groove (534) faces the rotary supporting seat (512); the rolling loosening limiting groove (534) is rotationally connected with a rolling loosening wheel (535) which is arranged in the horizontal direction, and the rolling loosening wheel (535) is used for horizontally rolling to the outer wall of the plunger seat, so that the plunger seat can be rotationally connected to the plunger ball head after being rolled loose.

2. The hydraulic pump plunger assembly device according to claim 1, characterized in that the feeding transfer means (2) comprises a feeding assembly (21) and a transfer assembly (22); the feeding assembly (21) comprises a feeding bracket (211), a feeding containing plate (212) and a feeding positioning driving piece (215); a plurality of holding grooves (213) are arranged on the top of the feeding holding plate (212) in an array manner; the feeding containing plate (212) is connected to the feeding support (211) in a sliding mode in the front-back direction through a containing sliding rail (214), the feeding positioning driving piece (215) is arranged on the feeding support (211), a driving part of the feeding positioning driving piece (215) is fixedly connected with the feeding containing plate (212), and the feeding positioning driving piece (215) drives the feeding containing plate (212) to slide back and forth along the containing sliding rail (214); the transfer assembly (22) is used for transferring the plunger body and the plunger seat on the containing groove (213) to the riveting device (3).

3. The hydraulic pump plunger assembly device of claim 2, wherein the transfer assembly (22) includes a linear movement slide (221), a plunger clamping assembly (222), and a plunger seat clamping assembly (223); the linear moving sliding table (221) is horizontally arranged on the frame (1); the plunger clamping assembly (222) and the plunger seat clamping assembly (223) are respectively arranged on a first sliding plate (224) of the linear moving sliding table (221); the plunger clamping component (222) and the plunger seat clamping component (223) are arranged in parallel; the plunger clamping component (222) is used for clamping and transferring the plunger to the riveting device (3), and the plunger seat clamping component (223) is used for clamping and transferring the plunger seat to the riveting device (3); the plunger clamping assembly (222) and the plunger seat clamping assembly (223) comprise a clamping lifting cylinder (225) and a clamping cylinder (226); the clamping lifting cylinder (225) is longitudinally arranged on the first sliding plate (224), and a telescopic rod of the clamping lifting cylinder (225) is connected with a clamping lifting plate (227); two sides of the clamping lifting plate (227) are connected to the first sliding plate (224) in a lifting manner through guide rods (2271); the clamping cylinder (226) is horizontally arranged on the clamping lifting plate (227); two first clamping plates (228) matched with the plunger body are arranged on a clamping cylinder (226) on the plunger clamping assembly (222); two second clamping plates (229) matched with the plunger seat are arranged on a clamping cylinder (226) on the plunger seat clamping assembly (223).

4. The hydraulic pump plunger assembly apparatus of claim 1, wherein the riveting assembly (32) includes a riveting bracket (321) and a riveting cylinder (322); the riveting support (321) is arranged on the frame (1) and is positioned above the riveting positioning assembly (31), a cylinder body of the riveting oil cylinder (322) is longitudinally arranged on a top plate of the riveting support (321), a riveting head (323) is connected to the lower end of a telescopic rod of the riveting oil cylinder (322) through the top plate of the riveting support (321), and a telescopic rod connecting plate (324) is connected to the telescopic rod of the riveting oil cylinder (322); the telescopic rod connecting plate (324) is longitudinally connected with a riveting guide rod (325); the top end of the riveting guide rod (325) penetrates through the top plate of the riveting support (321) and is limited on the top plate of the riveting support (321).

5. A hydraulic pump plunger assembly apparatus according to claim 3, characterized in that the rivet transfer device (4) comprises a transfer jaw assembly (41), a flip assembly (42) and a rivet transfer assembly (43); the transfer clamping jaw assembly (41) is arranged on the feeding transfer device (2), and the transfer clamping jaw assembly (41) and the plunger clamping assembly (222) have the same structure; the turnover assembly (42) comprises a turnover bracket (421), a turnover cylinder (422) and a turnover clamping jaw cylinder (423); the overturning bracket (421) is arranged on the feeding transfer device (2); the overturning cylinder (422) is arranged on the overturning bracket (421), the overturning clamping jaw cylinder (423) is arranged on an overturning part of the overturning cylinder (422), and the overturning clamping jaw cylinder (423) is positioned below the transferring clamping jaw assembly (41); the riveting transfer assembly (43) comprises a riveting transfer bracket (431), a riveting lifting transfer cylinder (432), a riveting rotary cylinder (433), a riveting horizontal transfer cylinder (434) and a riveting transfer clamping jaw cylinder (435); the riveting lifting transfer cylinder (432) is arranged at the top of the riveting transfer bracket (431), and a lifting part of the riveting lifting transfer cylinder (432) is connected with a lifting frame (436); the riveting lifting transfer cylinder (432) is arranged on the lifting frame (436), the riveting horizontal transfer cylinder (434) is arranged on a rotating part of the riveting lifting transfer cylinder (432), and the riveting transfer clamping jaw cylinder (435) is arranged on a horizontal moving part of the riveting horizontal transfer cylinder (434).

6. The hydraulic pump plunger assembly device according to claim 5, further comprising a blanking means (6); the blanking device (6) comprises a first conveying belt assembly (61) and a second conveying belt assembly (62); the first conveyer belt component (61) is arranged in the front-back direction and is positioned between the overturning component (42) and the riveting transfer component (43), and the second conveyer belt component (62) is arranged in the horizontal direction and is positioned at the discharge end side of the first conveyer belt component (61); the discharging end side of the second conveying belt assembly (62) is provided with a discharging collecting frame (63).

7. A method of assembling a hydraulic pump plunger assembly apparatus, characterized by applying the hydraulic pump plunger assembly apparatus of claim 6, comprising the steps of:

S1, feeding a plunger body and a plunger seat: the plunger body (7) and the plunger seat (8) are sequentially arranged in a containing groove (213) in a loading containing plate (212) on the loading assembly (21); the feeding positioning driving piece (215) drives the feeding containing plate (212) to be conveyed to the lower part of the transferring assembly (22) backwards;

S2, transferring the plunger body and the plunger seat: the plunger clamping assembly (222) and the plunger seat clamping assembly (223) are driven to move above the upper containing plate (212) through the linear moving sliding table (221), and a plunger body (7) is clamped through the plunger clamping assembly (222); clamping a plunger seat (8) through a plunger seat clamping assembly (223); the plunger body (7) and the plunger seat (8) are transferred to the riveting device (3) through the linear moving sliding table (221);

S3, riveting the plunger body and the plunger seat: the positioning support seat (315) on the riveting device (3) is in a lifting state, the plunger body (7) is placed into the positioning support seat (315) on the riveting device (3) through the plunger clamping assembly (222), and the plunger body (7) on the positioning support seat (315) is lowered through the lifting oil cylinder; the first connecting block (316) and the second connecting block (317) are respectively driven to move by the first positioning oil cylinder (313) and the second positioning oil cylinder (314), so that the first connecting block (316) and the second connecting block (317) are clamped and attached, the plunger body (7) on the positioning support seat (315) is lifted and positioned between the first connecting block (316) and the second connecting block (317) by the lifting oil cylinder, and the plunger ball head (71) of the plunger body (7) is positioned between the two first half grooves (3191); then, the plunger seat (8) is placed on the plunger ball head (71) between the first connecting block (316) and the second connecting block (317) through the plunger seat clamping component (223), the outer wall of the plunger seat (8) is limited in the two first half grooves (3191), the outer peripheral wall of the lower part of the plunger seat (8) is riveted to the plunger ball head (71) along the inner peripheral wall of the first half grooves (3191) through the riveting component (32), and the outer peripheral wall of the lower part of the plunger seat (8) is closed along the inner peripheral wall of the first half grooves (3191); fixedly connecting a plunger seat (8) with a plunger ball head (71);

s4, transferring after riveting: after the plunger seat (8) is riveted to the plunger ball head (71), the transfer clamping jaw assembly (41) is driven by the linear movement sliding table (221) to clamp and transfer the riveted plunger to the turnover assembly (42), and the plunger body (7) is turned over by 180 degrees through the turnover assembly (42), so that the plunger seat (8) which is originally positioned above the plunger body (7) is positioned below the plunger body (7) after being turned over; transferring the overturned plunger to a plunger seat rolling loosening device (5) through a riveting transfer assembly (43);

S5, rolling loose the plunger seat: placing a plunger seat (8) positioned below into a plunger seat groove (514) of a plunger limiting carrier (513), enabling a plunger body (7) to be vertically placed, driving a loosening positioning rod (524) to descend through a loosening positioning oil cylinder (522), enabling the lower end of the loosening positioning rod (524) to extend into a plunger inner cavity (73) of the plunger body (7), limiting and fixing the riveted plunger up and down, driving the riveted plunger to rotate through a rotating motor (511), and rolling to the outer wall of the plunger seat (8) through loosening rollers (535) on a plurality of loosening assemblies; limiting the plunger seat (8) on the plunger ball head (71); simultaneously, the plunger seat (8) and the plunger ball head (71) realize relative rotation;

S6, finishing blanking: after the rolling loosening processing is finished, the finished product is clamped and transferred to a blanking device (6) through a riveting transfer assembly (43) to be conveyed and blanked.