CN206732863U - A pneumatic clamping fixture - Google Patents

Abstract

The utility model discloses a pneumatic clamping tool, including main support, cylinder, the toper push rod that can reciprocate, translation ejector pad, positioning fixture. The moving direction is skillfully turned by 90 degrees by utilizing the matching of the conical push rod and the translation push block, so that the mounting space can be effectively saved, in addition, a spring is arranged between the fixed seat and the movable seat of the positioning fixture, when the workpiece clamping hole is opened, the spring extends, and after the air cylinder is reset, the workpiece clamping hole is automatically contracted by utilizing the force of the spring, so that the workpiece is automatically clamped, and the use is convenient.

Description

A pneumatic clamping fixture

technical field

The utility model relates to the technology in the field of clamping fixtures, in particular to a pneumatic clamping fixture.

Background technique

The existing clamping fixture is a single-piece manual fixture, which can only clamp one workpiece at a time, and manual clamping is required. The clamping is frequent and takes a long time, and the efficiency is too low; and if other larger workpieces need to be clamped When using the fixture, it is necessary to disassemble the fixture first, and after placing a large workpiece, it needs to be re-installed and adjusted when using the fixture again; in addition, due to manual clamping, the clamping force varies each time, resulting in poor repeat positioning.

Utility model content

In view of this, the utility model aims at the shortcomings of the prior art, and its main purpose is to provide a pneumatic clamping fixture, which can clamp multiple workpieces at one time and improve the clamping efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions:

A pneumatic clamping fixture includes a main bracket, a cylinder, a conical push rod that can move up and down, a translation push block, and a positioning fixture; the cylinder is fixed on the horizontal plate of the main bracket, and the piston rod of the cylinder is connected to the conical push rod. rod, the translational push block is provided with a tapered groove to match with the tapered push rod; the positioning fixture includes a fixed seat, a sliding guide rod, a spring, and a movable seat, and the fixed seat is installed on the vertical plate of the main bracket , one end of the sliding guide rod is fixed on the translation push block, and the other end passes through the fixed seat and is fixed on the movable seat, a spring is contacted between the fixed seat and the movable seat, half of the workpiece clamping hole is arranged on the fixed seat, The other half of the workpiece clamping hole is provided on the movable seat, and when the movable seat is attached to the fixed seat, a complete workpiece clamping hole is formed.

As a preferred solution, the fixed seat is in the shape of a long strip, and the fixed seat is equipped with a plurality of movable seats and a plurality of translation push blocks, and each translation push block has its own tapered push rod and cylinder.

As a preferred solution, there is a pre-positioning fixture above the positioning fixture, and a plurality of workpiece pre-installation holes are arranged in the positioning fixture. When the workpiece is clamped on the workpiece pre-installation hole, it forms an integral body with the pre-positioning fixture , the protruding part of the workpiece can be inserted into the workpiece clamping hole for processing.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above-mentioned technical scheme that it is mainly because the pneumatic clamping jig is equipped with a main bracket, a cylinder, and a conical pusher that can move up and down. Rod, translation push block, positioning fixture. Using the cooperation of the tapered push rod and the translation push block, the moving direction can be turned 90 degrees ingeniously, which can effectively save the installation space. In addition, a spring is set between the fixed seat and the movable seat of the positioning fixture. When the workpiece clamping hole When it is opened, the spring stretches, and after the cylinder is reset, the clamping hole of the workpiece is automatically contracted by the force of the spring, so that the workpiece is automatically clamped, which is convenient to use.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

FIG. 1 is a first perspective perspective view of an assembled state of an embodiment of the present invention.

FIG. 2 is an exploded view of FIG. 1 .

Fig. 3 is a second perspective perspective view of the assembled state of the embodiment of the present invention.

FIG. 4 is an exploded view of FIG. 3 .

Fig. 5 is a cross-sectional view of an embodiment of the present invention where the section line is located at the center of the tapered push rod.

Fig. 6 is a cross-sectional view of an embodiment of the present invention where the line is located at the center of the sliding guide rod.

Explanation of the accompanying drawings:

10. Main support 11. Horizontal plate

12. Riser 20. Cylinder

30. Conical push rod 40. Translation push block

41. Tapered groove 50. Positioning fixture

51. Fixing seat 52. Slide guide rod

53. Spring 54. Movable seat

55. Workpiece clamping hole 60. Pre-positioning fixture

61. The workpiece is pre-installed with holes.

detailed description

Please refer to Fig. 1 to Fig. 6, which shows the specific structure of a preferred embodiment of the present invention, which is a pneumatic clamping fixture, including a main support 10, a cylinder 20, and a conical pusher that can move up and down. Rod 30, translation push block 40, positioning fixture 50.

Wherein, the cylinder 20 is fixed on the horizontal plate 11 of the main bracket 10, the piston rod of the cylinder 20 is connected with the tapered push rod 30, and the said translation push block 40 is provided with a tapered groove 41 to match and install with the tapered push rod 30. . The positioning fixture 50 includes a fixed seat 51 , a sliding guide rod 52 , a spring 53 , and a movable seat 54 . The fixed seat 51 is installed on the vertical plate 12 of the main support 10, one end of the sliding guide rod 52 is fixed on the translation push block 40, and the other end passes through the fixed seat 51 and is fixed on the movable seat 54, and the fixed seat 51 is connected to the movable seat. A spring 53 is abutted between the seats 54, half of the workpiece clamping hole 55 is provided on the fixed seat 51, and the other half of the workpiece clamping hole 55 is provided on the movable seat 54, when the movable seat 54 is attached to the fixed seat 51 , forming a complete workpiece clamping hole 55 .

When in use, the air-push piston rod is pushed up, driving the conical push rod 30 to move upward. Due to the design of the conical structure, the translational push block 40 changes its moving direction and becomes a horizontal movement. The fixing seat 51 remains stationary during the whole process. The movement of the translation push block 40 drives the sliding guide rod 52 to translate, so that the movable seat 54 is far away from the fixed seat 51. At this time, the spring 53 is elongated, and the workpiece clamping hole 55 is opened. When the workpiece is placed in the workpiece clamping hole 55, the cylinder 20 resets, and at the same time the tapered push rod 30 and the translation push block 40 are reset in turn, and the spring 53 is reset, so that the workpiece clamping hole 55 becomes smaller and the workpiece is clamped In this way, a clamping process is completed.

In this embodiment, the fixed seat 51 is in the shape of a long strip, and the fixed seat 51 is equipped with a plurality of movable seats 54 and a plurality of translation push blocks 40, and each translation push block 40 has its own tapered push rod 30 and cylinder 20. As shown in Figures 1 to 6, there are four workpiece clamping holes 55. Therefore, the ratio of the fixed seat 51 to the movable seat 54, the translation push block 40, the tapered push rod 30, and the cylinder 20 is 1: 4:4:4:4.

There is a pre-positioning fixture 60 above the positioning fixture 50, and the positioning fixture 50 is provided with a plurality of workpiece pre-installation holes 61. When the workpiece is clamped on the workpiece pre-installation hole 61, it forms an integral body with the pre-positioning fixture 60 , the protruding part of the workpiece can be inserted into the workpiece clamping hole 55 for processing.

In summary, the key point of the design of the utility model is that the main support 10, the cylinder 20, the tapered push rod 30 that can move up and down, the translation push block 40, and the positioning fixture 50 are provided in the pneumatic clamping fixture. Utilize the cooperation of the tapered push rod 30 and the translation push block 40 to cleverly make the moving direction turn 90 degrees, which can effectively save the installation space. In addition, a spring 53 is arranged between the fixed seat 51 and the movable seat 54 of the positioning fixture 50 , when the workpiece clamping hole 55 is opened, the spring 53 is extended, and after the cylinder 20 is reset, the force of the spring 53 is used to automatically shrink the workpiece clamping hole 55, so that the workpiece is clamped, which is convenient to use.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (3)

1. A kind of 1. Pneumatic clamping tool, it is characterised in that：Pushed away including main support, cylinder, cone push rod moving up and down, translation Block, positioning fixture；The cylinder is fixed on the level board of main support, the piston rod connection cone push rod of cylinder, the translation Pushing block is provided with cone tank and cone push rod Matching installation；The positioning fixture includes fixed seat, sliding guide, spring, activity Seat, the fixed seat are installed on the riser of main support, and translation pushing block is fixed in one end of the sliding guide, and the other end passes through Sliding seat is fixed on after fixed seat, spring has been abutted between fixed seat and sliding seat, fixed seat is provided with the one of clamping workpiece hole Half, sliding seat is provided with second half of clamping workpiece hole, when sliding seat fits in fixed seat, forms complete clamping workpiece Hole.
2. A kind of 2. Pneumatic clamping tool according to claim 1, it is characterised in that：The fixed seat is elongated, and this is solid Reservation is equipped with multiple sliding seat and multiple translation pushing blocks, and each translation pushing block has cone push rod and cylinder alone.
3. A kind of 3. Pneumatic clamping tool according to claim 1, it is characterised in that：Have above the positioning fixture predetermined Position fixture, multiple workpiece prepackage hole is provided with the positioning fixture, when by clamping workpiece on workpiece prepackage hole, with pre-determined bit Fixture forms entirety, can stretch out after part is plugged in clamping workpiece hole workpiece and be processed.