WO2021212673A1

WO2021212673A1 - Automated shaping device for automobile shock absorber connecting rod ends

Info

Publication number: WO2021212673A1
Application number: PCT/CN2020/102882
Authority: WO
Inventors: 陈根星; 贾春松; 杨廷凯; 宋坤杰
Original assignee: 西格迈股份有限公司
Priority date: 2020-04-24
Filing date: 2020-07-18
Publication date: 2021-10-28
Also published as: CN111515692B; CN111515692A

Abstract

An automated shaping device for automobile shock absorber connecting rod ends, comprising a machine rack (1), and a feeding apparatus (2) and a discharging rack (3) respectively disposed on two sides of the machine rack (1); the machine rack (1) is provided with a three-station synchronous machining apparatus (4) and a material-moving mechanical hand (5) disposed above the three-station synchronous machining apparatus (4). During machining, the automobile shock absorber connecting rod ends are positioned by means of a shock absorber connecting rod large end bracket and a shock absorber connecting rod small end bracket that are always in a static state, and positioning precision is high; the three-station synchronous machining apparatus (4) can simultaneously punch centre holes, drill, and punch patterns on three automobile shock absorber connecting rods respectively. The automated shaping device for automobile shock absorber connecting rod ends has high machining precision and a high degree of automation, so that labour intensity is low and production efficiency is high, and can also adapt to automobile shock absorber connecting rods of different specifications, having good universality.

Description

Automated forming equipment for connecting rod end of automobile shock absorber

Technical field

The invention relates to the production technology of a shock absorber connecting rod, in particular to equipment used for the automatic forming of the end of the automobile shock absorber connecting rod.

Background technique

The end of the connecting rod of the automobile shock absorber should be reserved for fixed points that can be subjected to force to realize the assembly and tightening of the automobile shock absorber assembly, so that the connecting rod is fixed when the outer fixing nut is tightened to avoid follow-up rotation. At present, it is a relatively common design form of a fixed point that can be subjected to a force to provide a hole with a specific pattern at the end of the connecting rod of an automobile shock absorber.

In the prior art, the production process for forming the end of the connecting rod of the automobile shock absorber is usually: CNC lathe center drilling and drilling of the center hole-CNC drilling machine drilling-manual hydraulic press for punching and forming. However, this processing technology has the following defects: First, if the placement position is inaccurate, deviated, or excessive force is used to damage the connecting rod during the punching process, it will cause quality problems, need to be reworked, or even become scraps, and increase costs; The second is that the degree of automation is not high, the labor intensity is high, the production process is inconsistent, and the production efficiency is low; the third is that due to the different specifications of the automobile shock absorber connecting rod, it is necessary to replace the tooling to adapt to the process requirements of various automobile shock absorber connecting rods .

technical problem

Aiming at the shortcomings of the prior art, the present invention provides an automatic molding equipment for the end of the automobile shock absorber connecting rod. The molding equipment not only has high processing accuracy, but also has a high degree of automation, low labor intensity of workers, and high production efficiency; in addition, The automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention can also adapt to different specifications of automobile shock absorber connecting rods, and has good versatility.

Technical solutions

The present invention provides the following technical solutions: the automatic molding equipment for the end of the connecting rod of the automobile shock absorber includes a frame, and a feeding device and a material unloading rack respectively arranged on both sides of the frame; the frame is provided with three-station synchronization The processing device and the material-moving manipulator arranged above the three-station synchronous processing device; the three-station synchronous processing device includes a main fixing plate and an auxiliary fixing plate arranged parallel to each other; the main fixing plate and the auxiliary fixing plate pass through A plurality of connecting posts vertically arranged with respect to the main fixing plate and the auxiliary fixing plate are connected to form a fixing frame; a fixed bottom plate and a top material plate are sequentially arranged between the main fixing plate and the auxiliary fixing plate; the fixed bottom plate There are four equally spaced shock absorber connecting rod big end brackets. Correspondingly, four equally spaced shock absorber connecting rod small end brackets are arranged on the inner side wall of the top plate to form a basis The loading station, centering station, drilling station and punching station are distributed in sequence, and each station is equipped with a device to limit the radial runout and axial displacement of the shock absorber connecting rod during processing. Limiting structure; the main fixed board, corresponding to the center hole station, the drilling station and the punching type station, is provided with A power head for center hole and B power for drilling in sequence Head, and a hydraulic cylinder used for punching; the piston rod of the hydraulic cylinder is fixedly connected to the chuck used to install the punch; the main fixed plate, the auxiliary fixed plate and the fixed bottom plate are fixedly connected to the frame; The material-moving manipulator includes a base plate. The base plate is provided with a material-taking and unloading cylinder. The piston rod of the material-taking and unloading cylinder is connected with the connecting plate so that the connecting plate can move up and down; the upper side of the connecting plate is provided with a set of guides slidingly matched with the base plate. Column, the lower side of the connecting plate is fixedly connected with the fixed plate; the fixed plate corresponds to the loading station, the center hole station, the drilling station and the punching station, and there are four etc. Pneumatic mechanical claws with a distance distribution; the base plate is connected to two feed guide posts fixedly arranged relative to the frame in the feed direction through a pair of linear bearings, and can be driven by a fixed station transfer cylinder to move along the feed guide posts The loading device includes a support frame and a hopper set above the support frame; the bottom surface of the hopper is inclined to the loading side; the inner side wall of the hopper is composed of a set of side plates arranged at intervals to form a stepped shape; the side The board is inclined to the upper material side, and the adjacent two sides of the board are partially overlapped in the height direction. Each side board is provided with an A loading board on the inside of each side board. Each A loading board is connected with the driving board, and the driving board is fixed in the hopper. The A loading cylinder at the bottom is connected and can be driven by the A loading cylinder; the top of the hopper is provided with a buffer plate that is connected to the top of the uppermost side plate and is inclined to the upper material side; the buffer plate is connected to the feeder The big end bracket of the shock absorber connecting rod and the small end bracket of the shock absorber connecting rod of the station are connected.

Beneficial effect

Compared with the prior art, the above-mentioned automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention has achieved the following remarkable progress by adopting a specific structure:

1) During processing, the automobile shock absorber connecting rod is positioned through the shock absorber connecting rod large end bracket and the shock absorber connecting rod small end bracket that are always in a static state, and the positioning accuracy is high, resulting in good product quality and high cost rate. The manufacturing cost is reduced, and the product consistency is good;

2) By setting up a specific three-station synchronous processing device with a feeding station, a centering station, a drilling station and a punching station on the frame, the feeding station plays a preparatory role. The remaining three stations are processing stations, which can simultaneously perform centering, drilling and punching of the three automobile shock absorber connecting rods. After a set of processing actions are completed, they can be synchronized by a specific material moving manipulator. The automobile shock absorber connecting rods on the material station, the centering station and the drilling station are moved to the next station to realize the carry, and the finished automobile shock absorber connecting rod on the punching station is moved to the bottom The material rack is collected, and then the next set of three-station synchronous processing actions are carried out. At the same time, the loading station is automatically loaded by a specific feeding device waiting for the picking of the material moving manipulator. The whole process is automatic, and the production efficiency is high. Low labor intensity of workers;

3) The integration of multiple processes in one equipment can reduce the investment in site, equipment, tooling, and man-hours; the equipment has a reasonable structure design, good stability and high reliability.

As an optimized solution, in the aforementioned automatic molding equipment for the end of the automobile shock absorber connecting rod, the fixed bottom plate is provided with a center hole station, a drilling station and a punching station, respectively, for The lever cylinder that compresses the shock absorber connecting rod is used to prevent the shock absorber connecting rod from radial runout during processing. The lever cylinder is used to radially limit the shock absorber connecting rod, which is simple, reliable and easy to implement.

As an optimized solution, in the aforementioned automatic forming equipment for the end of the automobile shock absorber connecting rod, the large end bracket of the shock absorber connecting rod on the centering station, the drilling station and the punching station is made of A bracket It is composed of a base and an A contact block fixed on the top of the A support base. The A support base is fixed on the fixed bottom plate. The hardness of the A contact block is not lower than HRC40. Suitable V-shaped surface. The big end bracket of the shock absorber connecting rod is composed of the A bracket seat and the A contact block fixed on the top of the A bracket seat. During processing, the shock absorber connecting rod is in contact with the A contact block. The A contact block has a higher hardness and a longer service life. It is long, and after the A contact block is worn out, the A contact block can be replaced without replacing the entire bracket, which is beneficial to cost saving.

As an optimized solution, in the aforementioned automatic forming equipment for the end of the automobile shock absorber connecting rod, the small end brackets of the shock absorber connecting rods at the centering and drilling stations are fixed to the B bracket seat and B The bracket seat is composed of a contact block B on the bracket seat; the bracket seat B is connected with the top plate through a sliding pair, the hardness of the contact block B is not less than HRC40, and the small end of the connecting rod of the shock absorber is on it. The adapted arc-shaped stepped groove restricts the axial position of the shock absorber connecting rod through the stepped surface; the small end bracket of the shock absorber connecting rod on the punching station is fixed to the C bracket seat and the C bracket seat The C contact block is composed of the upper C contact block; the hardness of the C contact block is not less than HRC40, and it has an arc-shaped stepped groove that matches the small end of the shock absorber connecting rod, and the shaft of the shock absorber connecting rod is restricted by the stepped surface To position. This structure restricts the axial position of the shock absorber connecting rod by matching the stepped surface on the arc-shaped stepped groove with the stepped surface of the small end of the shock absorber connecting rod, which is simple, reliable, and easy to implement; during processing, the shock absorber connecting rod is The contact block is in contact with the C contact block. The B contact block and the C contact block have higher hardness, are not easy to wear, and have a longer service life. Further, on the outer side wall of the top material plate, corresponding to the centering hole station and the drilling station, a jacking cylinder is respectively provided; The piston rod of the cylinder is firmly connected. With this structure, after the shock absorber connecting rod is moved in, the B bracket seat is pushed out by the tightening cylinder to support the shock absorber connecting rod to be processed. After the processing action is completed, the tightening cylinder drives the B bracket seat to retract, thereby , It can avoid the interference between the step of the small end of the shock absorber connecting rod and the small end bracket of the shock absorber connecting rod during the carry, and the failure to enter the position smoothly.

As an optimized solution, in the aforementioned automatic molding equipment for the end of the automobile shock absorber connecting rod, the fixed bottom plate and the connecting column are connected by a hoist ring sleeved on the connecting column. At this time, the three-station synchronous processing device has good integrity and a more stable structure.

As an optimized solution, in the aforementioned automatic forming equipment for the end of the automobile shock absorber connecting rod, a connecting column is provided on both sides of the punching station, and the chuck is fixedly connected to the punch fixing plate, and the punch The fixing plate is slidingly fitted with the connecting posts on both sides of the fixing plate. The structure is easy to implement, relatively compact, and occupies a small space. At the same time, the stability of the punch installed on the chuck is high, and the product quality is further guaranteed. Further, a stripping baffle is provided in front of the punch fixing plate, and a passage hole through which the punch can pass is provided on the stripping baffle. By setting the stripping baffle, the punch can be more smoothly separated from the end of the connecting rod after the punching pattern is completed, and the reliability of the equipment is further improved.

As an optimized solution, in the aforementioned automatic forming equipment for the end of the automobile shock absorber connecting rod, the three-station synchronous processing device also includes an iron chip blanking guide box, which punches the center hole processing area and drills. The hole machining area is surrounded to prevent iron filings and machining fluid from splashing. By setting the iron filings falling material guide box, it is possible to prevent iron filings and machining fluid from splashing around when punching the center hole and drilling, which is beneficial to keep the workshop clean, and can avoid the situation of iron filings flying and hurting people, and the safety is improved.

As an optimized solution, in the aforementioned automatic molding equipment for connecting rod ends of automobile shock absorbers, the outer side of the top plate corresponds to the loading station, and an adjusting cylinder whose piston rod can extend into the inside of the top plate is provided. The adjustment cylinder is used to adjust the axial position of the automobile shock absorber connecting rod on the loading station, so that the position of the automobile shock absorber connecting rod entering the processing station is kept uniform in the axial direction and is consistent with the working station. The axial limit structure is adapted to avoid or reduce the friction between the automobile shock absorber connecting rod and the bracket during processing, and prolong the service life of the bracket.

As an optimized solution, in the aforementioned automatic forming equipment for the end of the automobile shock absorber connecting rod, the top material plate is connected to each connecting column through a linear bearing; the auxiliary fixing plate is provided with a top material plate connected to the top material plate Adjust the screw. At this time, the position of the top plate can be adjusted by the top plate adjusting screw to adapt to the shock absorber connecting rods of different specifications, so that the equipment has a wide range of applications.

As an optimized solution, in the aforementioned automatic molding equipment for the end of the automobile shock absorber connecting rod, the material moving manipulator further includes two longitudinal guide posts that are arranged perpendicularly to the feed guide post. The two ends are respectively connected with one of the longitudinal guide posts through linear bearings to adjust the longitudinal position, and at least one linear bearing connecting the feed guide post and the longitudinal guide post has a lockable fastening handle; the longitudinal guide post is fixed On the rack. At this time, the position of the feed guide column can be adjusted to adapt to the shock absorber connecting rods of different specifications, so that the equipment has a wide range of applications.

As an optimized solution, in the aforementioned automatic molding equipment for the end of the automobile shock absorber connecting rod, a blocking plate is provided in the middle of the buffer plate. Correspondingly, the middle of the buffer plate is also provided with B which can be driven by the B feeding cylinder. Loading board. The distance that the car shock absorber connecting rod continuously rolls on the buffer plate is too long, and it is easy to deviate. By setting a blocking plate in the middle of the buffer plate, the car shock absorber connecting rod that reaches the position of the blocking plate is stopped first, and then B The feeding board is pushed away from the blocking board and starts rolling again to the feeding station, making the feeding more accurate and reliable.

As an optimized solution, in the aforementioned automatic molding equipment for the end of the automobile shock absorber connecting rod, the top outer end of the blanking rack is provided with a stop plate, and the top of the blanking rack is inclined with the outer end lower than the inner end. . Therefore, after the processed automobile shock absorber connecting rod is transported to the lowering rack by the material moving manipulator, the automobile shock absorber connecting rod automatically rolls along the inclined surface to the outer end of the lowering rack under the action of gravity to avoid accumulation .

Description of the drawings

Figure 1 is a schematic diagram of the structure of the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

2 is a schematic structural diagram of the three-station synchronous processing device in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

Figure 3 is a schematic diagram of the structure of the three-station synchronous processing device in Figure 2 during processing; (four stations have shock absorber connecting rods)

4 is a top view of the three-station synchronous processing device in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

Figure 5 is a schematic structural view of the big end bracket of the shock absorber connecting rod on the three-station synchronous processing device of the present invention;

6 is a schematic diagram of the structure of the small end bracket of the shock absorber connecting rod in the centering station and the drilling and drilling stations in the three-station synchronous processing device of the present invention;

FIG. 7 is a schematic diagram of the structure of the small end bracket of the shock absorber connecting rod on the stamping type station in the three-station synchronous processing device of the present invention;

8 is a schematic structural view of the material-moving manipulator in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

9 is a top view of the material-moving manipulator in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

10 is a schematic structural view of the feeding device in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

11 is a side view of the feeding device in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention;

Figure 12 is a schematic diagram of the structure of A feeding mechanism on the feeding device of the present invention;

Figure 13 is a schematic structural view of the B feeding mechanism on the feeding device of the present invention;

14 is a schematic diagram of the structure of the blanking rack in the automatic molding equipment for the end of the automobile shock absorber connecting rod of the present invention.

Reference signs:

1- rack;

2-feeding device, 201-support frame, 202-hopper, 203-side plate, 204-A feeding plate, 205-drive plate, 206-A feeding cylinder, 207-buffer plate, 208-B feeding cylinder , 209-B loading plate, 2010-blocking plate;

3-Unloading rack, 301-stop plate;

4-Three-station synchronous processing device, 401-main fixing plate, 402- auxiliary fixing plate, 403-connecting column, 404-A power head, 405-B power head, 406-hydraulic cylinder, 407-fixed base plate, 408- Ejector plate, 409-lifting ring, 4010-lever cylinder, 4011-clamping cylinder, 4012-chuck, 4013-punch fixing plate, 4014-removal baffle, 4015-iron chip blanking guide box, 4016-A Bracket seat, 4017-A contact block, 4018-B bracket seat, 4019-B contact block, 4020-adjusting cylinder, 4021-top plate adjusting screw, 4022-C bracket seat, 4023-C contact block;

5-Material transfer manipulator, 501- base plate, 502- take and discharge cylinder, 503- station transfer cylinder, 504- connecting plate, 505- guide post, 506- fixed plate, 507- feed guide post, 508- pneumatic machinery Claw, 509-longitudinal guide post, 5010-fastening handle.

The best mode of the present invention

In the following, the present invention will be further described in conjunction with the drawings and specific implementations (examples), but it is not used as a basis for limiting the present invention.

Referring to Fig. 1, the automatic forming equipment for the end of the automobile shock absorber of the present invention includes a frame 1, and a feeding device 2 and a feeding frame 3 respectively arranged on both sides of the frame 1; on the frame 1 A three-station synchronous processing device 4 and a material-moving manipulator 5 arranged above the three-station synchronous processing device 4 are provided. When working, the three-station synchronous processing device 4 simultaneously performs centering, drilling and punching of the three automobile shock absorber connecting rods. After a set of processing actions are completed, the material-moving manipulator 5 will be used to punch the punching station The car shock absorber connecting rod that has been processed on the upper part is transported to the lowering rack 3 for collection. At the same time, the car shock absorber connecting rod that has been punched and drilled is moved forward to a station, and it will be in a ready state The car shock absorber connecting rod is transported to the centering station, and then the next set of processing actions are performed.

2 and 3, the three-station synchronous processing device 4 includes a main fixing plate 401 and an auxiliary fixing plate 402 arranged in parallel to each other; the main fixing plate 401 and the auxiliary fixing plate 402 are opposed to the main The fixing plate 401 and the auxiliary fixing plate 402 are connected by a vertical connecting column 403 to form a fixing frame; a fixing bottom plate 407 and a top material plate 408 are sequentially arranged between the main fixing plate 401 and the auxiliary fixing plate 402; The fixed bottom plate 407 is provided with four equally spaced shock absorber connecting rod big end brackets. Correspondingly, the inner side wall of the top plate 408 is provided with four equally spaced shock absorber connecting rod small end brackets. , So as to form a sequentially distributed loading station, centering station, drilling station and punching station, and each station is equipped with a limit shock absorber connecting rod in the process of radial runout and Axial displacement limit structure (the part of the limit structure that is in contact with the shock absorber connecting rod should be made of a material with a hardness of not less than HRC40, which can be die steel, 45 steel or quenched material); the main fixing plate 401 Above, corresponding to the centering station, drilling station and punching station, there are A power head 404 for centering hole, B power head 405 for drilling, and punching station in sequence. Type hydraulic cylinder 406; the piston rod of the hydraulic cylinder 406 is fixedly connected with the chuck 4012 used to install the punch; the main fixed plate 401, the auxiliary fixed plate 402 and the fixed bottom plate 407 are fixedly connected to the frame 1. During processing, a center drill is installed on the A power head 404, a punching bit is installed on the B power head 405, and a punch is installed on the chuck 4012 (the specifications of the punch are selected according to the pattern to be processed. The figure shows the hexagonal punch. The processed flower pattern is hexagon socket), the two ends of the automobile shock absorber connecting rod are respectively supported by the shock absorber connecting rod large end bracket and the shock absorber connecting rod small end bracket, and the automobile shock absorber is restricted by the limit structure The radial runout and axial displacement of the connecting rod, the A power head 404, the B power head 405 and the hydraulic cylinder 406 act at the same time, respectively, to absorb the vibration of the car on the center hole station, the drilling station and the punching station. The connecting rod of the machine is processed. After completing a set of processing actions, the A power head 404, the B power head 405 and the hydraulic cylinder 406 are reset and wait for the next set of processing actions.

6 and 7, the material moving manipulator 5 includes a base plate 501. The base plate 501 is provided with a material picking and unloading cylinder 502. The piston rod of the picking and unloading cylinder 502 is connected to the connecting plate 504 so that the connecting plate 504 can move up and down; The upper side of the connecting plate 504 is provided with a set of guide posts 505 that are slidably fitted with the base plate 501, and the lower side of the connecting plate 504 is fixedly connected to the fixing plate 506; The center hole station, the drilling station and the punching station are provided with four equally spaced pneumatic mechanical claws 508; the base plate 501 is opposite to the two in the feed direction through a pair of linear bearings. The fixed feeding guide post 507 is connected and can be driven by the fixed station transfer cylinder 503 to move along the feed guide post 507. After the three-station synchronous processing device 4 completes a set of processing actions, the take-and-discharge cylinder 502 drives four pneumatic mechanical claws 508 (mechanical claws can also be replaced by non-pneumatic equivalents) and move down to the corresponding loading station at the same time , Centering station, drilling station and punching station, clamp the car shock absorber connecting rod on the station, and then take the discharge cylinder 502 to reset, the station transfer cylinder 503 drives the base plate 501 to move one work The distance between the positions (the distance between the stations is the distance between two adjacent stations), and then the pneumatic mechanical claw 508 is driven down to the height of the station by the take-and-discharge cylinder 502, and the pneumatic mechanical claw 508 is released to make the punching pattern The automobile shock absorber connecting rods grabbed by the station fall into the unloading rack 3, and the automobile shock absorber connecting rods grabbed from the loading station, the center hole drilling station and the drilling station fall into the center hole worker respectively. Position, drilling station and punching station, complete one station feed. After the carry is completed, the fetching and unloading cylinder 502 and the station transfer cylinder 503 are reset, and the next station feeding action is waited for.

8-11, the loading device 2 includes a support frame 201 and a hopper 202 arranged above the support frame 201; the bottom surface of the hopper 202 is inclined to the loading side; the inner side wall of the hopper 202 is arranged at intervals A stepped side plate 203 is formed; the side plate 203 is inclined to the upper material side, and the adjacent two side plates 203 partially overlap in the height direction. Each side plate 203 is provided with an A upper material plate 204, each A The feeding plate 204 is connected to the driving plate 205, and the driving plate 205 is connected to the A feeding cylinder 206 fixed at the bottom of the hopper 202 and can be driven by the A feeding cylinder 206 (A feeding plate 204, driving plate 205 and A feeding cylinder 206 forms a feeding mechanism A); the top of the hopper 2 is provided with a buffer plate 207 that is connected to the top of the uppermost side plate 203 and is inclined to the upper material side; the buffer plate 207 and the feeding station The big end bracket of the shock absorber connecting rod and the small end bracket of the shock absorber connecting rod are connected. When working, a number of automobile shock absorber connecting rods to be processed are placed in the hopper 202. Because the bottom of the hopper 202 is inclined to the upper material side, the automobile shock absorber connecting rod will roll toward the side plate 203 under the action of gravity, and A feeding cylinder 206 drives the upper plate 204 of A to move up along the side plate 203. Since the side plate 203 is inclined to the upper material side, the car shock absorber connecting rod that is leaning against it will be pushed up by the upper plate 204 of A, and finally falls there. The top of the side plate 203 is close to the bottom of the upper side plate 203, the shock absorber of the automobile climbs a step, and the A feeding cylinder 206 repeats its action after resetting. Each time A loading cylinder 206 performs an action, the car shock absorber connecting rod climbs a step, and finally reaches the buffer plate 207, and then rolls to the loading station under the action of gravity, and falls into the loading station, waiting to be pneumatically mechanical claw 508 Crawl. (The feeding frequency should be compatible with the grabbing frequency of the material-moving manipulator. The material-moving manipulator performs a material-moving action, and the feeding device 2 conveys a shock absorber connecting rod to the upper material station)

In the present invention, the feeding device 2, the three-station synchronous processing device 4 and the material moving manipulator 5 can be controlled by a PLC controller.

As a specific example (see Figure 1-14):

On the fixed bottom plate 407, corresponding to the centering station, the drilling station and the punching station, a lever cylinder 4010 for pressing the shock absorber connecting rod is respectively provided to prevent the shock absorber The connecting rod undergoes radial runout during processing; during processing, the pressure block of the lever cylinder 4010 presses the shock absorber connecting rod to prevent it from radial runout.

The shock absorber connecting rod big end bracket on the centering station, drilling station and punching station is composed of A bracket seat 4016 and A contact block 4017 fixed on the top of A bracket seat 4016, so The A bracket seat 4016 is fixed on the fixed bottom plate 407, and the A contact block 4017 is made of mold steel, and has a V-shaped surface that matches the large end of the shock absorber connecting rod. During processing, the large end of the shock absorber connecting rod is in contact with the A contact block 4017. The A contact block 4017 is harder, not easy to be damaged, and has a long service life.

The small end bracket of the shock absorber connecting rod on the centering station and the drilling station is composed of a B bracket seat 4018 and a B contact block 4019 fixed on the B bracket seat 4018; the B bracket seat 4018 and The ejector plate 408 is connected by a sliding pair, the B contact block 4019 is made of mold steel, and has an arc-shaped stepped groove that matches the small end of the shock absorber connecting rod, and the shock absorber is restricted by the step surface The axial position of the connecting rod; the small end bracket of the shock absorber connecting rod on the punching station is composed of a C bracket seat 4022 and a C contact block 4023 fixed on the C bracket seat 422; the C contact block The hardness of 4023 is not lower than HRC40, and it has an arc-shaped stepped groove matching the small end of the shock absorber connecting rod, and the axial position of the shock absorber connecting rod is restricted by the stepped surface. During processing, the small end of the shock absorber connecting rod on the centering station and the drilling station is in contact with the B contact block 4019, and the shock absorber connecting rod on the punching station is in contact with the C contact block 4023, passing The stepped surface of the arc-shaped stepped groove blocks the shock absorber connecting rod and restricts its axial position. The B contact block 4019 and the C contact block 4023 are harder, not easy to be damaged, and have a long service life.

On the outer side wall of the ejector plate 408, corresponding to the center hole station and the drilling station, a jacking cylinder 4011 is respectively provided; the B bracket seat 4018 and the ejector plate 408 are connected by a sliding pair, and at the same time, The piston rod of the corresponding jacking cylinder 4011 is fixedly connected. After the carry is completed, the tightening cylinder 4011 pushes out the B bracket seat 4018 on the center hole drilling station and the drilling station, and against the shock absorber connecting rod. After the processing action is completed, the tightening cylinder 4011 drives the B bracket seat 4018 Retract to avoid interference between the small end of the shock absorber connecting rod and the arc-shaped stepped groove during the next carry, and it cannot be smoothly placed in place.

The fixed bottom plate 407 and the connecting column 403 are connected by a lifting ring 409 sleeved on the connecting column 403. The fixed bottom plate 407 and the connecting column 403 are connected by the lifting ring 409, so that the three-station synchronous processing device has a better integrity and a more stable structure.

A connecting post 403 is provided on both sides of the punching station. The chuck 4012 is fixedly connected to the punch fixing plate 4013, and the punch fixing plate 4013 is slidingly fitted with the connecting posts 403 on both sides of the chuck. The punch is fixed by this structure, which has good stability and high processing precision.

The front of the punch fixing plate 4013 is provided with a stripping baffle 4014, and the stripping baffle 4014 is provided with a passage hole through which the punch can pass. When working, the punch passes through the channel hole to punch the car shock absorber. After completion, the punch moves back. The stripper baffle 4014 has a blocking effect on the car shock absorber connecting rod in the axial direction, making the punch more Smoothly separated from the car shock absorber connecting rod.

The three-station synchronous processing device 4 also includes an iron filings blanking guide box 4015. The iron filings blanking guide box 4015 surrounds the centering hole processing area and the drilling processing area, and is used to prevent iron filings and processing fluid from splashing. During processing, the iron filings and machining fluid generated by the center hole and drilling will fall to the designated area along the guide of the iron filings falling material guide box 4015 for collection.

The outer side of the ejector plate 408 corresponds to the loading station, and an adjusting cylinder 4020 is provided with a piston rod that can extend into the inner side of the ejector plate 408. During processing, adjust the cylinder 4020 to adjust the axial position of the automobile shock absorber connecting rod that falls into the loading station, so that the position of the automobile shock absorber connecting rod entering the processing station is kept uniform in the axial direction, and It is compatible with the stroke of the tightening cylinder 4011 (the small end of the connecting rod is just at the position after the B bracket seat 4018 is pushed out), so as to avoid or reduce the friction between the automobile shock absorber connecting rod and the bracket during processing.

The top material plate 408 is connected to each connecting column 403 through a linear bearing; the auxiliary fixing plate 402 is provided with a top material plate adjusting screw 4021 connected to the top material plate 408. The user can adjust the top plate 408 to a proper position through the top plate adjusting screw 4021 according to the specifications of the shock absorber connecting rod.

The material moving manipulator 5 also includes two longitudinal guide posts 509 arranged perpendicular to the feed guide post 507. Both ends of the feed guide post 507 are respectively connected to one of the longitudinal guide posts 509 by linear bearings. The longitudinal position can be adjusted, and at least one linear bearing connecting the feeding guide post 507 and the longitudinal guide post 509 has a lockable fastening handle 5010; the longitudinal guide post 509 is fixed on the frame 1. The user can adjust the feed guide column 507 to a proper position according to the specifications of the shock absorber connecting rod, and then lock and fix it by tightening the handle 5010.

The middle of the buffer plate 207 is provided with a blocking plate 2010. Correspondingly, the middle of the buffer plate 207 is also provided with a B loading plate 209 that can be driven by a B loading cylinder 208 (B loading cylinder 208 and B loading plate 209 forms B feeding mechanism). The automobile shock absorber connecting rod stops after the buffer plate 207 rolls to the position of the blocking plate 207, and then is pushed away from the blocking plate 2010 by the B loading plate 209, and restarts to roll up the feeding station, making the feeding more accurate and reliable.

The top outer end of the blanking rack 3 is provided with a stop plate 301, and the top of the blanking rack 3 is inclined with the outer end lower than the inner end. The structure is simple and practical. After the processed car shock absorber connecting rod is transported by the material moving manipulator 5 to the feeding rack 3, the automobile shock absorber connecting rod is automatically lowered to the outside of the feeding rack 3 along the inclined surface under the action of gravity. End rolling to avoid accumulation. After rolling to the outer end, the rolling stops due to the restriction of the stop plate 301.

Industrial applicability

When using the automatic molding equipment for forming the end of the automobile shock absorber connecting rod of the present invention, the shock absorber connecting rod to be processed is placed in the hopper 202. Since the bottom of the hopper 202 is inclined, the shock absorber connecting rod will move toward The side plate 203 rolls, and the shock absorber connecting rod of the side plate 203 rises under the push of the A loading plate 204. Each time the A loading cylinder 206 moves, the shock absorber connecting rod rises one step and reaches the buffer plate 207. , Roll to the three-station synchronous processing device, stop after encountering the blocking plate 2010, and then lifted by the B loading plate 209 against the shock absorber connecting rod of the blocking plate 2010 over the blocking plate 2010 (B loading cylinder 208 moves once every time , Realize one-time feeding), roll to the feeding station of the three-station synchronous processing device to complete the feeding.

After the shock absorber connecting rod on the loading station is grabbed by the pneumatic mechanical claw 508 of the material moving manipulator 5, it is transported to the center hole punching station, and the center hole is punched at the center hole punching station. After the center hole is punched, , Transported by the material-moving robot 5 to the drilling station for drilling. After the drilling is completed, it is transported by the material-moving robot 5 to the punching station for punching. After the punching is completed, it is transported by the material-moving robot 5 To the lowering rack 3 for collection.

With the continuous progress of loading and moving, the loading station, centering station, drilling station and punching station will have shock absorber connecting rods at the same time, so three shock absorbers can be realized at the same time. The connecting rods of the device are respectively punched, drilled and punched.

Claims

The automatic forming equipment for the end of the connecting rod of the automobile shock absorber is characterized in that it comprises a frame (1), and a feeding device (2) and an unloading frame (3) respectively arranged on both sides of the frame (1); The frame (1) is provided with a three-station synchronous processing device (4) and a material-moving manipulator (5) arranged above the three-station synchronous processing device (4);

The three-station synchronous processing device (4) includes a main fixing plate (401) and an auxiliary fixing plate (402) arranged in parallel with each other; the main fixing plate (401) and the auxiliary fixing plate (402) pass through a plurality of The connecting pillars (403) arranged vertically relative to the main fixing plate (401) and the auxiliary fixing plate (402) are connected to form a fixing frame; the main fixing plate (401) and the auxiliary fixing plate (402) are in sequence A fixed bottom plate (407) and a top material plate (408) are provided; the fixed bottom plate (407) is provided with four equally spaced shock absorber connecting rod large-end brackets. Correspondingly, the top material plate (408) ) Is provided with four equidistantly distributed shock absorber connecting rod small-end brackets on the inner side wall, thereby forming a feeding station, a centering station, a drilling station and a punching station, which are distributed in sequence. And each station is equipped with a limit structure that limits the radial runout and axial displacement of the shock absorber connecting rod during processing; the main fixing plate (401) corresponds to the centering station and the drilling station Position and punching type station are provided with A power head (404) for drilling center holes, B power head (405) for drilling, and hydraulic cylinders (406) for punching in sequence; The piston rod of the hydraulic cylinder (406) is fixedly connected to the chuck (4012) used to install the punch; the main fixing plate (401), the auxiliary fixing plate (402) and the fixed bottom plate (407) are connected to the frame (1) ) Fixed connection;

The material moving manipulator (5) includes a base plate (501). The base plate (501) is provided with a material picking and unwinding cylinder (502). The piston rod of the material picking and unwinding cylinder (502) is connected to the connecting plate (504) so that the connecting plate ( 504) can move up and down; the upper side of the connecting plate (504) is provided with a set of guide posts (505) slidingly fitted with the base plate (501), and the lower side of the connecting plate (504) is fixed to the fixing plate (506) The fixed plate (506), corresponding to the feeding station, the centering station, the drilling station and the punching station, is provided with four equidistantly distributed pneumatic mechanical claws (508); The base plate (501) is connected to two feed guide posts (507) fixedly arranged relative to the frame (1) in the feed direction through a pair of linear bearings, and can be driven by a fixed station transfer cylinder (503). The feed guide column (507) moves;

The feeding device (2) includes a support frame (201) and a hopper (202) arranged above the support frame (201); the bottom surface of the hopper (202) is inclined to the loading side; the inner side of the hopper (202) The wall is composed of a set of side plates (203) arranged at intervals to form a stepped shape; the side plates (203) are inclined to the upper material side, and the adjacent two side plates (203) partially overlap in the height direction, and each side plate (203) ) Is provided with an A loading plate (204), each A loading plate (204) is connected with the driving plate (205), the driving plate (205) and the A loading cylinder fixed at the bottom of the hopper (202) The (206) connection can be driven by the A feeding cylinder (206); the top of the hopper (2) is provided with a buffer plate (207) that is connected to the top of the uppermost side plate (203) and is inclined to the upper material side;

The buffer plate (207) is connected with the shock absorber connecting rod large end bracket and the shock absorber connecting rod small end bracket of the loading station.
The automatic forming equipment for the end of the automobile shock absorber connecting rod according to claim 1, characterized in that: the fixed bottom plate (407) corresponds to a centering station, a drilling station, and a punching station , Each is provided with a lever cylinder (4010) for pressing the shock absorber connecting rod to prevent the shock absorber connecting rod from radial jumping during processing.
The automatic forming equipment for the end of an automobile shock absorber connecting rod according to claim 1, wherein the small end bracket of the shock absorber connecting rod at the centering and drilling stations is formed by a B bracket seat ( 4018) and a B contact block (4019) fixed on the B bracket seat (4018); the B bracket seat (4018) and the top plate (408) are connected by a sliding pair, and the B contact block The hardness of (4019) is not lower than HRC40, and it has an arc-shaped stepped groove that matches the small end of the shock absorber connecting rod, and the axial position of the shock absorber connecting rod is restricted by the stepped surface; The small end bracket of the shock absorber connecting rod at the position is composed of a C bracket seat (4022) and a C contact block (4023) fixed on the C bracket seat (422); the hardness of the C contact block (4023) is not low For HRC40, there is an arc-shaped stepped groove that matches the small end of the shock absorber connecting rod, and the axial position of the shock absorber connecting rod is restricted by the stepped surface.
The automatic forming equipment for the end of the automobile shock absorber connecting rod according to claim 3, characterized in that: on the outer side wall of the top material plate (408), corresponding to the center hole station and the drilling station are respectively provided There is a jacking cylinder (4011); the B bracket seat (4018) is connected with the top plate (408) through a sliding pair, and at the same time, it is fixedly connected with the piston rod of the corresponding jacking cylinder (4011).
The automatic molding equipment for the end of the automobile shock absorber connecting rod according to claim 1, characterized in that: a connecting column (403) is provided on both sides of the punching station, and the chuck (4012) It is fixedly connected with the punch fixing plate (4013), and the punch fixing plate (4013) is slidingly fitted with the connecting posts (403) located on both sides of the punch fixing plate (4013).
The automatic forming equipment for the end of the automobile shock absorber connecting rod according to claim 5, characterized in that: a stripping baffle (4014) is provided in front of the punch fixing plate (4013), and a stripping baffle (4014) ) Is provided with a passage hole for the punch to pass through.
The automatic molding equipment for the end of the automobile shock absorber connecting rod according to any one of claims 1 to 6, characterized in that: the top material plate (408) is connected to each connecting column (403) through a linear bearing; The auxiliary fixing plate (402) is provided with a top material plate adjusting screw (4021) connected with the top material plate (408).
The automatic forming equipment for the end of the automobile shock absorber connecting rod according to claim 7, characterized in that: the material-moving manipulator (5) further comprises two longitudinally arranged vertically with respect to the feed guide column (507) A guide post (509), both ends of the feed guide post (507) are respectively connected with one of the longitudinal guide posts (509) through a linear bearing to adjust the longitudinal position, and at least one is connected to the feed guide post (507) and The linear bearing of the longitudinal guide post (509) is provided with a lockable fastening handle (5010); the longitudinal guide post (509) is fixed on the frame (1).
The automatic molding equipment for the end of an automobile shock absorber connecting rod according to claim 1, characterized in that: a blocking plate (2010) is provided in the middle of the buffer plate (207), and correspondingly, the buffer plate (207) There is also a B loading plate (209) which can be driven by the B loading cylinder (208) in the middle of the.
The automatic molding equipment for the end of the automobile shock absorber connecting rod according to any one of claims 1 to 9, characterized in that: the top outer end of the blanking rack (3) is provided with a stop plate (301), The top of the blanking rack (3) is inclined with the outer end lower than the inner end.