CN212735034U

CN212735034U - Piston rod processing and positioning device

Info

Publication number: CN212735034U
Application number: CN202020846330.3U
Authority: CN
Inventors: 汪元文
Original assignee: Anhui Jinzhijie Machinery Technology Co ltd
Current assignee: Anhui Jinzhijie Machinery Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-03-19
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a piston rod processing positioner relates to piston rod production technical field. The utility model comprises a base, wherein the base is provided with a fixed seat and a sliding seat which are fixedly and slidably mounted, the fixed seat and the sliding seat are respectively and rotatably connected with a turntable, the two turntables are opposite in position, the opposite end surfaces of the two turntables are provided with chutes along the radial direction, the inner walls of the chutes are in sliding fit with sliders, the surfaces of the sliders are fixed with clamping arms, and the ends of the clamping arms are fixed with clamping blocks; the axes of the opposite end surfaces of the two turntables are fixed with a centering cylinder, the inner wall of the front end of the centering cylinder is in threaded fit with a centering pointed shaft, and the total length of the centering pointed shaft and the centering cylinder is less than the length of the clamping arm. The utility model discloses a but the radial centre gripping piston rod week surface of centre gripping arm and the grip block of two carousels, but through two centering sharp axle axial centre gripping piston rod both ends faces, be convenient for to piston rod work piece clamping, do benefit to the machining precision that improves the work piece, reduce the work piece disability rate.

Description

Piston rod processing and positioning device

Technical Field

The utility model belongs to the technical field of the piston rod production, especially, relate to a piston rod processing positioner.

Background

The piston rod machining process needs to be positioned and clamped, only one end face and one end peripheral surface of the piston rod are clamped when the piston rod excircle is machined by the existing lathe, the slipping phenomenon is easily caused during machining, workpieces are scrapped, in addition, the existing lathe is difficult to machine the large-size piston rod, a special positioning clamping fixture is also absent in the prior art, the automatic production of piston rod machining is influenced, the clamping position is inaccurate easily, machining is not accurate, and even the defect of a machined part is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston rod processing positioner convenient to centre gripping, that can improve work piece machining precision, reduce the disability rate.

The utility model discloses a realize through following technical scheme:

the utility model relates to a piston rod processing positioner, including the base, the base is equipped with fixed mounting's fixing base and slidable mounting's sliding seat, fixing base and sliding seat rotate respectively and are connected with a carousel to two carousel positions are relative, and the relative terminal surface of two carousels is along radially being equipped with the spout, and the spout is the circumference array distribution on the carousel, and spout inner wall sliding fit has the slider, and the radial distance of each slider and carousel axle center is the same, and the slider surface is fixed with the centre gripping arm, and centre gripping arm head end is fixed with the grip block, the spout internal rotation is equipped with the accommodate the lead screw with slider screw-thread fit, coaxial rotation is connected with the awl fluted disc in the carousel, and the awl fluted disc is connected with accommodate the lead screw transmission through bevel gear, and the pivot of awl fluted disc runs through to the carousel outside, and; the axial centers of the opposite end surfaces of the two turntables are fixedly provided with centering cylinders, the inner walls of the front ends of the centering cylinders are in threaded fit with centering pointed shafts, and the total length of the centering pointed shafts and the centering cylinders is smaller than that of the clamping arms.

Preferably, a gear ring is coaxially fixed on the surface of the turntable on the fixed seat, a driving motor is fixed on the surface of the base, and an output shaft of the driving motor is in meshing transmission with the gear ring through a gear.

Preferably, the number of the sliding grooves, the sliding blocks and the clamping arms is three.

Preferably, a hexagonal shaft shoulder is arranged between the tip end of the centering sharp shaft and the threaded part.

Preferably, install through slip table and slide rail sliding fit between sliding seat and the base, base one end is rotated and is connected with the feed lead screw, feeds lead screw and slip table screw-thread fit, feeds the lead screw outer end and is equipped with B hexagonal spanner jack.

Preferably, the base both sides are equipped with the location chimb, and the location chimb is equipped with the bolt positioning groove.

The utility model discloses following beneficial effect has:

the utility model discloses a but the radial centre gripping piston rod week surface of centre gripping arm and the grip block of two carousels, but through two centering sharp axle axial centre gripping piston rod both ends faces, be convenient for to piston rod work piece clamping, do benefit to the machining precision that improves the work piece, reduce the work piece disability rate.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a piston rod processing and positioning device in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a right view of the piston rod machining and positioning device of FIG. 1;

FIG. 3 is a front view of the piston rod machining and positioning device;

FIG. 4 is a side view of the turntable and slide block;

fig. 5 is a cross-sectional view taken along the plane a-a in fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1-base, 2-fixed base, 3-sliding base, 4-rotary table, 5-sliding groove, 6-sliding block, 7-clamping arm, 8-clamping block, 9-adjusting screw rod, 10-conical fluted disc, 11-bevel gear, 12-A hexagonal wrench jack, 13-centering barrel, 14-centering sharp shaft, 15-toothed ring, 16-driving motor, 17-gear, 18-sliding table, 19-sliding rail, 20-feeding screw rod, 21-bolt positioning groove and 22-B hexagonal wrench jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present embodiment provides a piston rod processing and positioning device, which includes a base 1, the base 1 is provided with a fixed seat 2 and a sliding seat 3, the fixed seat 2 and the sliding seat 3 are respectively connected to a rotating disk 4 in a rotating manner, the two rotating disks 4 are opposite in position, sliding slots 5 are radially provided on opposite end surfaces of the two rotating disks 4, the sliding slots 5 are distributed on the rotating disks 4 in a circumferential array manner, sliding blocks 6 are slidably fitted on inner walls of the sliding slots 5, clamping arms 7 are fixed on surfaces of the sliding blocks 6, clamping blocks 8 are fixed at ends of the clamping arms 7, radial distances between the sliding blocks 6 and axes of the rotating disks 4 are the same, radial positions of the clamping blocks 8 are the same, and after the clamping blocks 8 position and clamp a piston rod workpiece, the piston rod workpiece and the rotating disks 4 can be coaxially rotated, in addition, a preferred embodiment is, The number of the sliding blocks 6 and the number of the clamping arms 7 are three, because according to the three-point centering principle, three clamping points are enough to finish centering clamping of the piston rod workpiece, although the number of the parts is not limited to three, in order to reduce the actual assembly difficulty and the production cost of the turntable 4 and the parts, the number of the parts is not suitable to be increased. Further, 5 internal rotations of spout are equipped with accommodate the lead screw 9 with 6 screw-thread fit of slider, coaxial rotation is connected with awl fluted disc 10 in the carousel 4, awl fluted disc 10 is connected with accommodate the lead screw 9 transmission through bevel gear 11, the pivot of awl fluted disc 10 runs through to 4 outsides of carousel, and the pivot outer end of awl fluted disc 10 is equipped with A hexagonal wrench jack 12, during the use, insert the steerable awl fluted disc 10 of A hexagonal wrench jack 12 through the spanner and rotate, each accommodate the lead screw 9 of bevel fluted disc 10 accessible each bevel gear 11 simultaneous drive rotates, thereby make each centre gripping arm 7 gather together the centre gripping work piece to 4 axle centers of carousel or keep away from to 4 axle centers of carousel and loosen the work piece.

Furthermore, the axes of the opposite end surfaces of the two rotating discs 4 are fixed with centering cylinders 13, the inner walls of the front ends of the centering cylinders 13 are in threaded fit with centering pointed shafts 14, hexagonal shoulders are arranged between the tips of the centering pointed shafts 14 and the threaded parts, the length of the centering pointed shafts 14 can be adjusted by a wrench and the hexagonal shoulders to clamp a workpiece, the total length of the centering pointed shafts 14 and the centering cylinders 13 is less than the length of the clamping arms 7, when the workpiece for clamping the piston rod is positioned, the centering pointed shafts 14 clamp the end surfaces of the piston rod along the axial direction, so that the piston rod can be prevented from axially slipping due to unstable radial clamping when the outer circle of the piston rod is turned, while a common lathe in the prior art only has a pointed shaft at one end and can only play a role in preventing the shaft end from jumping, and compared with the prior art, the two centering pointed shafts 14 in the embodiment can prevent the slipping phenomenon caused by insufficient radial clamping force, the rejection rate of the workpiece is reduced.

Furthermore, a gear ring 15 is coaxially fixed on the surface of the rotary table 4 on the fixed seat 2, a driving motor 16 is fixed on the surface of the base 1, an output shaft of the driving motor 16 is in meshing transmission with the gear ring 15 through a gear 17, and the rotary table 4 can be driven to rotate through the driving motor 16, so that the piston rod workpiece can be driven to rotate to carry out cylindrical turning.

Further, the sliding seat 3 and the base 1 are installed in a sliding fit mode through a sliding table 18 and a sliding rail 19, the sliding seat 3 is fixed on the sliding table 18, one end of the base 1 is rotatably connected with a feeding screw rod 20, the feeding screw rod 20 is in threaded fit with the sliding table 18, a B hexagonal wrench jack 22 is arranged at the outer end of the feeding screw rod 20, the B hexagonal wrench jack 13 is inserted through a wrench, the feeding screw rod 20 can be driven to rotate, and therefore the distance between the sliding seat 3 and the fixing seat 2 is adjusted, and workpieces can be clamped conveniently.

Furthermore, the two sides of the base 1 are provided with positioning convex edges, and the positioning convex edges are provided with bolt positioning grooves 21 for fixing the base 1 on a processing table of equipment such as a processing center and the like.

The piston rod processing and positioning device can be fixed on a workbench of a CNC (computerized numerical control) processing center, the piston rod is processed through a main shaft of the processing center, the piston rod can be used for producing a large oil cylinder, the circumferential surfaces of the piston rod can be radially clamped through the clamping arms 7 and the clamping blocks 8 of the two turntables 4, the two end surfaces of the piston rod can be axially clamped through the centering pointed shaft 14, the processing precision of a workpiece is improved, and the workpiece is convenient to clamp.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a piston rod processing positioner, includes base (1), and base (1) is equipped with fixed mounting's fixing base (2) and slidable mounting's sliding seat (3), its characterized in that: the fixed seat (2) and the sliding seat (3) are respectively connected with a rotary table (4) in a rotating mode, the two rotary tables (4) are opposite in position, sliding grooves (5) are arranged on the opposite end faces of the two rotary tables (4) along the radial direction, the sliding grooves (5) are distributed on the rotary tables (4) in a circumferential array mode, sliding blocks (6) are matched with the inner walls of the sliding grooves (5) in a sliding mode, the radial distance between each sliding block (6) and the axis of each rotary table (4) is the same, a clamping arm (7) is fixed on the surface of each sliding block (6), a clamping block (8) is fixed at the head end of each clamping arm (7), an adjusting screw rod (9) in threaded fit with each sliding block (6) is arranged in the sliding grooves (5) in a rotating mode, a conical gear disc (10) is coaxially and rotatably connected in the rotary tables (4), the conical gear disc (10) is in transmission, and the outer end of the rotating shaft of the conical fluted disc (10) is provided with an A hexagonal wrench jack (12); the axis of the opposite end surfaces of the two rotating discs (4) is fixed with a centering cylinder (13), the inner wall of the front end of the centering cylinder (13) is in threaded fit with a centering sharp shaft (14), and the total length of the centering sharp shaft (14) and the centering cylinder (13) is smaller than that of the clamping arm (7).

2. The piston rod machining positioning device is characterized in that a toothed ring (15) is coaxially fixed on the surface of the rotary table (4) on the fixed seat (2), a driving motor (16) is fixed on the surface of the base (1), and an output shaft of the driving motor (16) is in meshing transmission with the toothed ring (15) through a gear (17).

3. Piston rod machining positioning device according to claim 1, characterized in that the number of the sliding grooves (5), the sliding blocks (6) and the clamping arms (7) is three.

4. Piston rod machining positioning device according to claim 1, characterized in that a hexagonal shoulder is provided between the tip of the centering shaft (14) and the threaded portion.

5. The piston rod machining positioning device is characterized in that the sliding seat (3) and the base (1) are installed in a sliding fit mode through a sliding table (18) and a sliding rail (19), a feed screw rod (20) is rotatably connected to one end of the base (1), the feed screw rod (20) is in threaded fit with the sliding table (18), and a B hexagonal wrench insertion hole (22) is formed in the outer end of the feed screw rod (20).

6. The piston rod machining and positioning device as claimed in claim 1, wherein positioning convex edges are arranged on two sides of the base (1), and the positioning convex edges are provided with bolt positioning grooves (21).