CN112677038B

CN112677038B - Barrel type clamp

Info

Publication number: CN112677038B
Application number: CN201910986760.7A
Authority: CN
Inventors: 尤丹雷
Original assignee: Accu Jiangsu Co ltd
Current assignee: Accu Jiangsu Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2022-02-18
Anticipated expiration: 2039-10-17
Also published as: CN112677038A

Abstract

The invention discloses a cylinder type clamp which comprises a cylinder, a rod, a track disc, a guide disc and a rotating device, wherein the cylinder is fixed on a workbench, the track disc is fixed in the cylinder, the guide disc is pivoted in the cylinder, and the guide disc is connected with the rotating device; the track disc is provided with a plurality of arc-shaped grooves which are uniformly distributed along the circumferential direction of the track disc, the head end of any arc-shaped groove is closer to the center of the track disc than the tail end of the arc-shaped groove, the guide disc is provided with a plurality of radial guide grooves, the guide grooves and the arc-shaped grooves are correspondingly arranged up and down in a one-to-one mode, a rod is inserted into each arc-shaped groove, the rod penetrates through the guide grooves, and the rods are provided with clamping blocks. The rod type parts extend into the barrel, the rotating device drives the guide disc to rotate, the guide disc drives the rods in the guide grooves, the rods move along the arc-shaped grooves of the track disc, the clamping blocks on the rods surround the rod type parts, the rod type parts are finally clamped, and the rod type parts are clamped in the center of the barrel. The part can obtain even atress, and the stability is pressed from both sides, is difficult for local deformation.

Description

Barrel type clamp

Technical Field

The invention relates to a clamp for automobile parts.

Background

Rod type parts, such as connecting rods on automobiles, need to be ground during processing or repairing to meet accurate size requirements, and meanwhile, the grinding can also repair flaws on the surfaces of the parts, and grinding tools can be filing knives or abrasive paper. When a worker performs surface treatment on a bar-like part with a tool, the part needs to be positioned on a table. In the prior art, a left clamping jaw and a right clamping jaw are generally used for clamping rod parts, and the parts are easy to deform due to left and right stress of the parts.

Disclosure of Invention

The technical problems solved by the invention are as follows: so that the rod-like part is uniformly positioned on the worktable under stress.

In order to solve the technical problems, the invention provides the following technical scheme: a cylinder type clamp comprises a cylinder, a rod, a track disc, a guide disc and a rotating device, wherein the cylinder is fixed on a workbench, the track disc is fixed in the cylinder, the guide disc is pivoted in the cylinder, and the guide disc is connected with the rotating device; the track disc is provided with a plurality of arc-shaped grooves which are uniformly distributed along the circumferential direction of the track disc, the head end of any arc-shaped groove is closer to the center of the track disc than the tail end of the arc-shaped groove, the guide disc is provided with a plurality of radial guide grooves, the guide grooves and the arc-shaped grooves are correspondingly arranged up and down in a one-to-one mode, a rod is inserted into each arc-shaped groove, the rod penetrates through the guide grooves, and the rods are provided with clamping blocks.

According to the technical scheme, rod parts extend into the barrel, the rotating device is driven electrically or manually, the rotating device drives the guide disc to rotate, the guide disc drives the rods in the guide grooves, the rods move along the arc-shaped grooves of the track disc, and the head ends of the arc-shaped grooves are closer to the center of the track disc than the tail ends of the arc-shaped grooves, so that all the rods are close to the center of the barrel, the clamping blocks on all the rods have a surrounding trend to the rod parts and finally clamp the rod parts, and the rod parts are clamped at the center of the barrel.

The clamping blocks of the invention gradually position and clamp rod parts in a mode of rotating and moving towards the center of the cylinder, and the invention has the following technical effects: firstly, compared with simple radial displacement, the clamping block is not easy to cause the rod parts to topple; secondly, the number of the rods and the clamping blocks is more than three, so that when rod parts are clamped, the parts can be uniformly stressed and are not easy to deform locally; thirdly, the number of the rods and the clamping blocks is more than three, and the clamping blocks can gradually move the rod parts to the central position of the cylinder before clamping the rod parts, so that the rod parts are accurately positioned; fourthly, the invention adopts the barrel, the clamping block is arranged in the barrel, the rod part extends into the barrel, and even if the clamping block loosens the rod part, the rod part cannot topple over but leans against the inner side wall of the barrel.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a cartridge-type jig;

FIG. 2 is a schematic view of the platen 60 of FIG. 1 shown hidden;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of the cartridge 10, the first base plate 71 and the second base plate 72 shown in FIG. 2 after being hidden;

FIG. 5 is a schematic view of a first chassis;

FIG. 6 is a schematic view of a second chassis;

FIG. 7 is a schematic view of a track disk;

fig. 8 is a schematic view of the guide plate.

The symbols in the drawings illustrate that:

10. a cartridge;

20. a rod; 21. a clamping block; 22. a slider;

30. a track disk; 31. an arc-shaped slot; 32. the head end of the arc-shaped groove; 33. the tail end of the arc-shaped groove;

40. a guide plate; 41. a guide groove;

50. a rotating device; 51. a rotating shaft; 52. a worm; 53. a screw; 54. a flexible member; 55. a strip-shaped guide groove;

60. a work table;

71. a first chassis; 72. a second chassis; 73. a guide hole; 74. and a guide block.

Detailed Description

Referring to fig. 1 to 4, a cartridge type jig includes a cartridge 10, a rod 20, a trajectory disk 30, a guide disk 40, and a rotation device 50.

The drum 10 is fixed on the table 60, the trajectory disk is fixed in the drum, the guide disk is pivoted in the drum, the guide disk is connected with the rotating device; the track disc is provided with a plurality of arc-shaped grooves 31 which are uniformly distributed along the circumferential direction of the track disc, as shown in fig. 7, the head end 32 of any arc-shaped groove is closer to the center of the track disc than the tail end 33, the guide disc is provided with a plurality of radial guide grooves 41, as shown in fig. 8, the guide grooves and the arc-shaped grooves are correspondingly arranged up and down in a one-to-one mode, a rod 20 is inserted into each arc-shaped groove, the rod penetrates through the guide grooves, and the rods are provided with clamping blocks 21.

The rod parts extend into the barrel 10, the rotating device 50 is manually driven, the rotating device drives the guide disc 40 to rotate, the guide disc drives the rods 20 in the guide grooves 41, the rods move along the arc-shaped grooves 31 of the track disc 30, and because the head ends 32 of the arc-shaped grooves are closer to the center of the track disc than the tail ends 33 of the arc-shaped grooves, all the rods are close to the center of the barrel 10, the clamping blocks 21 on all the rods tend to surround the rod parts and move towards the rod parts, and finally the rod parts are clamped, and the rod parts are clamped at the center of the barrel.

The number of the guide discs 40 is two, the number of the track discs 30 is two, the first guide disc is positioned at the top of the drum 10, the second guide disc is positioned at the bottom of the drum, the two track discs are positioned between the two guide discs 40, the first track disc is positioned at the top of the drum, and the second track disc is positioned at the bottom of the drum; a round hole is formed in the center of the first guide disc, and a round hole is formed in the center of the first track disc; a clamping block 21 is located between the two track disks. The rod type part extends into the barrel 10 from the top of the barrel 10 through the round holes of the first guide disc and the first track disc, and the bottom end of the rod type part is pressed on the second track disc. The two guide discs are arranged up and down, and the two track discs are also arranged up and down, so that the tops of all the rods are supported, the bottoms of the rods are also supported, and under the support of the tops and the bottoms, the clamping blocks on the rods can powerfully clamp the rod-like parts in the barrel 10, and the rods 20 are not easy to bend and deform, as shown in fig. 4.

The rod 20 is provided with a slider 22 fixedly connected thereto, which is a sliding fit in the guide groove 41. The slider is square, and its effect lies in, makes the pole can make relative radial displacement along the guide way, prevents the pole rotation, and then prevents that the clamp splice on the pole from rotating around the pole.

The rotating means 50 includes a rotating shaft 51 connected to the second guiding disc, a worm wheel (not shown) mounted on the rotating shaft, and a worm 52 engaged with the worm wheel, the worm wheel being located below the drum 10. The rotating device can drive all the rods 20 and the other guide disc to rotate synchronously only by driving the lower guide disc in the two guide discs, wherein all the rods move in the corresponding guide grooves 41. The worm gear has good self-locking capability, and can enable the guide disc, the track disc, all the rods and all the clamping blocks to stay at any position without additionally arranging a device for locking the clamping blocks 21. In addition, the invention can clamp rod parts with various types and sizes.

The clamp of the invention passes through the mounting hole of the workbench 60, the rotating device 50 is positioned below the workbench, the hands of workers extend to the lower part of the workbench to rotate the worm, and the rod parts are placed in the barrel 10 and then finished above the workbench, so the workbench surface is relatively neat, the clamp cannot be bent due to overhigh on the workbench, and dust generated by grinding cannot pollute the rotating device 50.

A first chassis 71 is mounted below the barrel 10 and the bottom end of the rod 20 bears against the first chassis. The first chassis has a supporting function for all the rods, so that the positions of the rods are stable. The center of the first chassis is provided with a hole position, the rotating shaft 51 is pivoted in the hole position, and the first chassis has a stable supporting function on the rotating shaft.

A second chassis 72 is arranged below the barrel 10, specifically, the second chassis is arranged at the bottom of the first chassis 71, and the bottom end of the rotating shaft 51 is pivoted on the bottom surface of the second chassis and does not protrude downwards; the rotating shaft is hollow and is provided with a threaded hole, namely the center of the rotating shaft is provided with the threaded hole, the threaded hole is screwed with a screw rod 53, the top end of the screw rod is provided with a flexible part 54, the side wall of the screw rod is provided with a strip-shaped guide groove 55, the center of the second chassis is provided with a guide hole 73, as shown in fig. 5, the side wall of the guide hole is provided with a guide block 74, the guide block is in sliding fit with the strip-shaped guide groove, and the screw rod protrudes downwards out of the second chassis 72; through holes are formed in the center of the second track disc and the center of the second guide disc, and the screw rod can penetrate through the two through holes vertically. The inner diameter of the through hole of the second track disc is smaller than the outer diameter of the clamped part, and the clamped part is prevented from penetrating into the through hole downwards.

The worm 52 is pivotally mounted in a hole in the side wall of the second chassis 71 and extends laterally through the side wall of the second chassis, the worker rotating the worm 52 to project the worm portion of the side wall of the second chassis.

The worm 52 rotates, the rotating shaft 51 is driven to rotate through the worm wheel, and the screw 53 does not rotate but moves up and down under the cooperation of the guide block 74 and the strip-shaped guide groove 55. The screw moves upwards to drive the flexible part 54 to move upwards, and the flexible part upwards passes through the through hole of the second track disc; the screw rod moves down, drives flexible piece 54 and moves down, and the through-hole of second orbit dish is passed downwards to the flexible piece, and its effect lies in: and dust at the center of the second track disc is wiped off, so that the rod parts, particularly precise rod parts such as automobile parts, are accurately positioned. The flexible part 54 can be soft sponge, has a larger outer diameter in a natural state, can erase dust in a larger area, can penetrate through the through hole in the center of the second track disc during shrinkage, moves downwards, is squeezed by the through hole and then is released, and is also released to the second guide disc below the second track disc. The dust on the second guide plate can be collected at regular time, for example, when workers leave work, the air blowing device blows air into the barrel 10, and the dust at all places in the barrel can be blown out through the guide grooves 41 and the arc-shaped grooves 31.

In practice, initially, the flexible element 54 is located below the second trajectory disk, the rod-like element extends into the barrel 10, the bottom part is pressed against the second trajectory disk, the worm 52 rotates, the rotating shaft 51 rotates, and the clamping block 21 gradually clamps the rod-like element. During this process, the flexible member 54 gradually moves upward. When the rod-like part is removed, the worm 52 is reversed, the clamping blocks release the rod-like part, and then the worm is rotated again, and the flexible member 54 moves upward to pass through the through hole of the second track disk. Then, the worm 52 is reversed, and the clamping blocks 21 are far away from the center of the barrel 10, namely all the clamping blocks are in an open state; meanwhile, the flexible part moves downwards, and the flexible part downwards penetrates through the through hole and is located below the second track disc after dust on the surface of the second track disc is erased.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims

1. A cartridge clamp comprising a cartridge (10), a rod (20), a trajectory disk (30), a guiding disk (40), a rotating device (50), characterized in that: the barrel is fixed on a workbench (60), the track disc is fixed in the barrel, the guide disc is pivoted in the barrel, and the guide disc is connected with the rotating device; the track disc is provided with a plurality of arc-shaped grooves (31) which are uniformly distributed along the circumferential direction of the track disc, the head end (32) of any arc-shaped groove is closer to the center of the track disc than the tail end (33), the guide disc is provided with a plurality of radial guide grooves (41), the guide grooves and the arc-shaped grooves are correspondingly arranged up and down in a one-to-one mode, a rod (20) is inserted into each arc-shaped groove, the rod penetrates through the guide grooves, and clamping blocks (21) are arranged on the rods;

the number of the guide discs is two, the number of the track discs (30) is two, the first guide disc is positioned at the top of the barrel (10), the second guide disc is positioned at the bottom of the barrel, the two track discs are positioned between the two guide discs (40), the first track disc is positioned at the top of the barrel, and the second track disc is positioned at the bottom of the barrel; a round hole is formed in the center of the first guide disc, and a round hole is formed in the center of the first track disc; the clamping block (21) is positioned between the two track discs;

the rotating device (50) comprises a rotating shaft (51) connected with the second guide disc, a worm wheel arranged on the rotating shaft and a worm (52) meshed with the worm wheel, and the worm wheel is positioned below the cylinder (10);

a second chassis (72) is arranged below the barrel (10), and the bottom end of the rotating shaft (51) is pivoted on the second chassis; the rotating shaft is hollow and provided with a threaded hole, a screw rod (53) is screwed in the threaded hole, a flexible part (54) is arranged at the top end of the screw rod, a strip-shaped guide groove (55) is formed in the side wall of the screw rod, a guide hole (73) is formed in the center of the second chassis, a guide block (74) is arranged on the side wall of the guide hole, and the guide block is in sliding fit with the strip-shaped guide groove; through holes are formed in the center of the second track disc and the center of the second guide disc, and the screw rod can penetrate through the two through holes vertically.

2. The fixture of claim 1, wherein: the rod (20) is provided with a sliding block (22), the sliding block is fixedly connected with the rod, and the sliding block is in sliding fit in the guide groove (41).

3. The fixture of claim 1, wherein: a first chassis (71) is mounted below the barrel (10), and the bottom end of the rod (20) is pressed against the first chassis.