CN218285204U

CN218285204U - Vacuum adsorption clamp

Info

Publication number: CN218285204U
Application number: CN202221998741.XU
Authority: CN
Inventors: 辛有来
Original assignee: Shaanxi Qianshan Avionics Co Ltd
Current assignee: Shaanxi Qianshan Avionics Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-13
Anticipated expiration: 2032-07-29

Abstract

The utility model belongs to the processing field of thin wall, abnormal shape class part, concretely relates to vacuum adsorption anchor clamps. The method comprises the following steps: the body is provided with a plurality of absorption units, each absorption unit is provided with a plurality of recesses around every air chamber outer fringe on setting up the sunken air chamber above the body, the body upper surface to and around the annular that a plurality of recesses set up, wherein, recess one end and air chamber intercommunication set up the sealing washer in the annular, each absorption unit's air chamber passes through the gas circuit intercommunication, the body lateral wall is provided with vacuum interface and is used for with vacuum pump connection. Can be used for processing thin-wall and special-shaped parts.

Description

Vacuum adsorption clamp

Technical Field

The utility model belongs to the processing field of thin wall, abnormal shape class part, concretely relates to vacuum adsorption anchor clamps.

Background

In recent years, products have come to have more and more thin-walled (wall thickness less than 2 mm) and irregular structural members, and are required to be formed by a allowance-removing processing method. The conventional processing technique method is to adopt single piece processing to manufacture a special pulling plate tool, fix a part on a pulling plate in a positioning pin and screw connection mode, and clamp the pulling plate by a vice for processing (shown in figure 1), and has the following defects:

1. unreliable part clamping and poor quality stability.

2. The part clamping preparation time is long, and the machining efficiency is low.

3. The surface of part can not make the technology blind rivet hole, need reserve the blind rivet hole position at part periphery, enlarged part unloading size, increase part manufacturing cost.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: a vacuum adsorption clamp is provided for processing thin-wall and special-shaped parts.

The technical scheme of the utility model:

a vacuum adsorption jig comprising: the body is provided with a plurality of absorption units, each absorption unit is provided with a plurality of recesses around every air chamber outer fringe on setting up the sunken air chamber above the body, the body upper surface to and around the annular that a plurality of recesses set up, wherein, recess one end and air chamber intercommunication set up the sealing washer in the annular, each absorption unit's air chamber passes through the gas circuit intercommunication, the body lateral wall is provided with vacuum interface and is used for with vacuum pump connection.

Further, the vacuum adsorption jig comprises a thin plate, wherein the outer periphery of the thin plate is larger than that of the ring grooves in the adsorption units, and the thin plate is used for covering other adsorption units to prevent air leakage under the condition that only part of the adsorption units in the vacuum adsorption jig are used.

Further, the depth of the groove is equal to 2mm.

Further, a plurality of grooves on each adsorption unit are uniformly and symmetrically arranged.

Further, the width of the groove is equal to 2mm.

Furthermore, three positioning blocks are arranged on the periphery of each adsorption unit, wherein two positioning blocks are positioned on one side of the adsorption unit with the longer dimension, the other positioning block is positioned on one side of the adsorption unit with the shorter dimension, and the three positioning blocks realize the positioning of the parts.

Has the beneficial effects that:

the utility model provides a vacuum adsorption anchor clamps, clamping, processing when can solving single or many parts, to unnecessary part absorption station, available sheet metal directly cover prevent gas leakage can, the part quantity of one-time processing can be adjusted in a flexible way. Meanwhile, parts with similar shapes and small size difference can be arranged together for processing, the modification cost is simple, and the processing quality and the production efficiency of the parts are effectively improved.

Drawings

FIG. 1 is a schematic view of a part clamp according to the prior art;

fig. 2 is a schematic structural view of a part to be machined according to an embodiment of the present invention;

fig. 3 is a schematic view of a vacuum suction jig according to an embodiment of the present invention;

fig. 4 is a schematic view of a positioning member according to an embodiment of the present invention.

Detailed Description

In order to solve the problem of processing the parts, the vacuum chuck is designed and manufactured, a plurality of parts (4 parts are set as a group in the embodiment) are clamped and processed simultaneously, and the processing quality and the production efficiency of the parts are improved.

A method for group machining by using vacuum chucks is mainly used for solving the problems of fast clamping of thin-wall and special-shaped parts during numerical control milling and group machining of multiple parts at one time. The typical part has a structure as shown in the following figure 2, the wall thickness of a middle solid body is less than 2mm, the rigidity is poor, the part is easy to deform, clamping cannot be performed by directly using a vice, the preparation time is long, the processing quality is unstable, and the production efficiency is low when a pulling plate is manufactured by a conventional method and is clamped.

To this type of part, design preparation vacuum chuck carries out processing in groups, and vacuum chuck's structural schematic is as shown in fig. 3, and 4 adsorb that the inside air flue of clamping station is the same (drilling deep hole through the left end of the figure and connecting each station air chamber, and it is tight with the drill way stifled of left end at last), connects a vacuum pump control part adsorption effort, need be equipped with spare parts such as check valve, sealing strip simultaneously. The specific structure of the adsorption station can be designed to be compatible with similar characteristics of parts of the same type of companies so as to meet the processing requirements of parts with similar shapes and sizes.

Specifically, in one embodiment, a vacuum suction jig includes: the body is provided with a plurality of absorption units on the body, and every absorption unit is provided with a plurality of recesses around every air chamber outer fringe on setting up the sunken air chamber in body top, body upper surface to and around the annular that a plurality of recesses set up, wherein, recess one end and air chamber intercommunication set up the sealing washer in the annular, and the air chamber of each absorption unit passes through the gas circuit intercommunication, and the body lateral wall is provided with vacuum interface and is used for with vacuum pump connection.

Preferably, the depth of the groove is equal to 2mm. A plurality of grooves on each adsorption unit are uniformly and symmetrically arranged. The width of the groove is equal to 2mm.

Further, three positioning blocks may be disposed at the periphery of each adsorption unit for positioning, wherein two positioning blocks are located at one side of the longer dimension of the adsorption unit, the other positioning block is located at one side of the shorter dimension of the adsorption unit, and the three positioning blocks realize positioning of the parts.

Or for positioning, a positioning assembly can be arranged, as shown in fig. 4, and three positioning tables are arranged on the positioning assembly.

Claims

1. A vacuum adsorption jig characterized by comprising: the body is provided with a plurality of absorption units on the body, and every absorption unit is provided with a plurality of recesses around every air chamber outer fringe on setting up the sunken air chamber in body top, body upper surface to and around the annular that a plurality of recesses set up, wherein, recess one end and air chamber intercommunication set up the sealing washer in the annular, and the air chamber of each absorption unit passes through the gas circuit intercommunication, and the body lateral wall is provided with vacuum interface and is used for with vacuum pump connection.

2. The vacuum suction jig as claimed in claim 1, further comprising a thin plate having a peripheral dimension greater than that of the ring grooves of the suction units for covering the other suction units to prevent air leakage in case that only some of the suction units of the vacuum suction jig are used.

3. The vacuum chuck as claimed in claim 1, wherein the depth of the groove is equal to 2mm.

4. The vacuum chuck as claimed in claim 1, wherein the plurality of grooves are uniformly and symmetrically formed on each of the chuck units.

5. The vacuum suction jig of claim 1, wherein the width of the groove is equal to 2mm.

6. The vacuum suction jig of claim 1, wherein three positioning blocks are provided at the periphery of each suction unit, two positioning blocks are located at the longer dimension side of the suction unit, the other positioning block is located at the shorter dimension side of the suction unit, and the three positioning blocks realize the positioning of the parts.