CN220903262U

CN220903262U - Part positioning fixture

Info

Publication number: CN220903262U
Application number: CN202322576162.7U
Authority: CN
Inventors: 肖永华; 陈勋星; 梁隆顺
Original assignee: Xiamen San'en Precision Technology Co ltd
Current assignee: Xiamen San'en Precision Technology Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-05-07
Anticipated expiration: 2033-09-21

Abstract

The utility model provides a part positioning clamp which comprises an air cylinder, a fixing piece, a workbench for placing parts and a push plate assembly, wherein the air cylinder is arranged on the workbench; the fixing piece is arranged on the piston of the air cylinder; the fixing piece corresponds to the upper part of the workbench; the push plate assembly acts on the table top of the workbench to push the part on the workbench, so that the displacement of the part on the workbench is realized, and the extension of the part on the workbench is changed.

Description

Part positioning fixture

Technical Field

The utility model relates to the field of fixtures, in particular to a part positioning fixture.

Background

In machining, it is often necessary to use a positioning jig for precise machining of the parts during the metal machining process.

However, the existing positioning fixture generally moves the whole workbench to adjust the position of the parts, and some parts need to extend out of the workbench to be processed, but the existing fixture is difficult to adjust the extending amount of the parts on the workbench.

Disclosure of utility model

The present utility model aims to overcome the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a part positioning fixture comprises an air cylinder, a fixing piece, a workbench for placing parts and a push plate assembly; the fixing piece is arranged on the piston of the air cylinder; the fixing piece corresponds to the upper part of the workbench; the push plate assembly acts on the table surface of the workbench;

The push plate assembly comprises a push plate and a movable part for displacing the push plate; the two work tables are arranged, and the pushing plates are positioned on the table top of the work table; the connecting end of the movable part and the push plate is arranged between the two work tables.

Preferably, the cylinder is a three-stage cylinder.

Preferably, the cylinder is mounted on a base frame through a mounting piece; the base frame is provided with a sliding rail for installing the fixing piece.

Preferably, the fixing piece is a vacuum adsorption platform.

Preferably, the movable part comprises a connecting arm fixedly connected with the push plate, a screw rod penetrating through the connecting arm, a worm wheel arranged at one end of the screw rod, a worm meshed with the worm wheel and a motor for driving the worm to rotate; the connecting arm is arranged in a gap between the 2 work tables; the screw rod is in threaded connection with the connecting arm.

Preferably, the two sides of the connecting arm are provided with balls, and the balls are attached to the 2 work tables.

Preferably, a scale for measuring the height of the workbench is arranged on one side of the workbench.

The beneficial effects of the utility model are as follows: the part can be pushed on the workbench to realize the displacement of the part on the workbench, so that the extension of the part on the workbench is changed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments, it being understood that the following drawings illustrate only some examples of the utility model and are therefore not to be considered limiting of its scope, since it is possible for a person skilled in the art to obtain other related drawings from these drawings without inventive effort.

FIG. 1 is a schematic diagram of the structure of the present utility model in elevation;

FIG. 2 is a schematic side view of the present utility model;

fig. 3 is a schematic structural view of a push plate assembly according to the present utility model.

Detailed Description

For the convenience of understanding by those skilled in the art, the structure of the present utility model will now be described in further detail with reference to the accompanying drawings:

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "upper," "lower," "side," "end," and the like are used for convenience in describing and simplifying the present utility model based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, a part positioning fixture comprises a cylinder 2, a fixing piece 3, a workbench 4 for placing parts and a push plate 51 assembly 5.

The cylinder 2, the fixing piece 3, the workbench 4 and the push plate 51 assembly 5 are all arranged on a base frame, and the base frame is composed of 2 vertical straight frames 11 and 1 horizontal frame 12 which is horizontally arranged.

The cylinder 2 is a three-section cylinder 2, and the cylinder 2 is mounted on a transverse frame 12 through a mounting piece 8, wherein the mounting piece 8 is a conventional hardware component.

The fixing piece 3 is a vacuum adsorption platform, and a CNC vacuum chuck platform can be adopted. In order to facilitate the up-and-down displacement of the fixing piece 3, 2 slide rails are arranged on the straight frame 11 of the base frame for the installation of the fixing piece 3.

The number of the work tables 4 is 2, and the 2 work tables 4 are arranged side by side with a gap reserved in the middle.

The push plate 51 assembly 5 comprises a push plate 51 and a movable part for displacing the push plate 51; the push plate 51 is located on the surface of the table 4. The movable part comprises a connecting arm 52 fixedly connected with the push plate 51, a screw 53 penetrating through the connecting arm 52, a worm wheel 54 arranged at one end of the screw 53, a worm 55 meshed with the worm wheel 54, and a servo motor 56 for driving the worm 55 to rotate; the connecting arm 52 is placed in the reserved gap between the 2 work tables 4; the screw 53 is in threaded connection with the connecting arm 52; the connecting arm 52 is provided with a screw hole for inserting the screw 53. When the servo motor 56 is started, the worm 55 rotates to drive the worm wheel 54 to rotate, so that the screw 53 rotates, the connecting arm 52 achieves the displacement effect through threads on the screw 53, and the push plate 51 is driven to move on the workbench 4 through the connecting arm 52, so that the push plate 51 can push parts on the workbench 4 to displace. The driving structure of the worm wheel 54 and the worm 55 can avoid the condition that the push plate 51 is retracted after the parts are stressed.

The balls 57 are provided on both sides of the connecting arm 52, and the balls 57 are attached to the 2 tables 4. The connecting arm 52 is limited through the 2 work tables 4, so that the connecting arm 52 is prevented from rotating along with the rotation of the screw 53; and secondly, friction between the connecting arm 52 and the workbench 4 is reduced, so that the connecting arm 52 can be displaced more smoothly.

Preferably, a scale 6 for measuring the height of the workbench 4 is arranged on one side of the workbench 4. So when the part is placed behind workstation 4, scale 6 can be used to measure both total heights, carries out corresponding regulation to cylinder 2 through electric cabinet 7 that locates the bed frame rear side.

Working principle: by placing the part on the workbench 4, then starting the cylinder 2, the piston of the cylinder 2 drives the fixing piece 3 to move downwards to press the part and perform vacuum adsorption fixing, and then the part can be processed. When the position of a part on the workbench 4 needs to be regulated, the fixing piece 3 is disconnected, the piston of the air cylinder 2 is retracted, then the servo motor 56 drives the worm 55, the worm 55 rotates to drive the worm wheel 54 to rotate in a rolling way, so that the screw 53 rotates, the connecting arm 52 realizes displacement through threads on the screw 53, and the connecting arm 52 drives the push plate 51 to move on the workbench 4, so that the push plate 51 can push the part on the workbench 4 to displace.

Claims

1. The utility model provides a part positioning fixture which characterized in that: comprises an air cylinder, a fixing piece, a workbench for placing parts and a push plate assembly; the fixing piece is arranged on the piston of the air cylinder; the fixing piece corresponds to the upper part of the workbench; the push plate assembly acts on the table surface of the workbench;

2. A part positioning jig according to claim 1, wherein: the cylinder is a three-section cylinder.

3. A part positioning jig according to claim 1, wherein: the cylinder is arranged on a base frame through a mounting piece; the base frame is provided with a sliding rail for installing the fixing piece.

4. A part positioning jig according to claim 1, wherein: the fixing piece is a vacuum adsorption platform.

5. A part positioning jig according to claim 1, wherein: the movable part comprises a connecting arm fixedly connected with the push plate, a screw rod penetrating through the connecting arm, a worm wheel arranged at one end of the screw rod, a worm meshed with the worm wheel and a motor for driving the worm to rotate; the connecting arm is arranged in a gap between the 2 work tables; the screw rod is in threaded connection with the connecting arm.

6. A part positioning jig according to claim 5, wherein: the connecting arm both sides have the ball, through laminating between ball and the 2 workstations.

7. A part positioning jig according to claim 1, wherein: one side of the workbench is provided with a graduated scale for measuring the height of the workbench.