CN112548609A

CN112548609A - Multi-station rapid pressing clamp

Info

Publication number: CN112548609A
Application number: CN202011500208.1A
Authority: CN
Inventors: 崔国栋; 范彦文; 朝鲁; 梁娜
Original assignee: Inner Mongolia Aerospace Honggang Machinery Co ltd
Current assignee: Inner Mongolia Aerospace Honggang Machinery Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-26

Abstract

The invention relates to technological equipment for milling parts on a numerical control milling machine or a boring and milling machining center, in particular to a multi-station rapid pressing clamp. The fixture comprises a fixture body and an inner hexagon bolt, wherein the fixture body is in threaded connection with the inner hexagon bolt, and the fixture body generates elastic deformation due to horizontal narrow and wide grooves distributed on the fixture body; the lower end of the narrow and wide groove on the fixture body is provided with a concave table, and the concave table is in clearance fit with the positioning surface of the machined part in a tolerance fit mode. The clamp portion is cracked. The short arc grooves on the two sides of the clamp body are used for weakening the grooves, so that the clamp body and the hexagon socket head cap screw are prevented from being difficult to compress due to high material strength. The concave station that the anchor clamps body set up is circular arc groove or dysmorphism groove. The invention introduces the principle of metal elastic deformation, and solves the problem of batch processing of parts with small clamping surfaces. The invention has the characteristics of simple structure, low manufacturing cost, high positioning precision, convenient clamping and the like, and is particularly suitable for batch production.

Description

Multi-station rapid pressing clamp

Technical Field

The invention relates to technological equipment for milling parts on a numerical control milling machine or a boring and milling machining center, in particular to a multi-station rapid pressing clamp.

Background

A numerical control milling machine or a boring and milling machining center is a machining device commonly used in machining of mechanical workpieces, and is a machine tool for milling workpieces by using a milling cutter. The milling machine can mill planes, grooves, gear teeth, threads and spline shafts, can process complex molded surfaces, and is widely applied to the field of machine manufacturing. However, when some tiny parts are machined, the clamping surfaces of some parts are small, the clamping (such as a vice) is difficult to use by a traditional method, the positioning precision is not enough, and the part assembling and disassembling time is long.

Disclosure of Invention

Technical problem to be solved by the invention

The invention provides a multi-station rapid pressing clamp, which solves the processing problems of difficult part clamping, insufficient positioning precision and long part loading and unloading time due to small part clamping surface.

The technical scheme adopted by the invention

A multi-station rapid pressing clamp comprises a clamp body 1 and an inner hexagon bolt 2, wherein the clamp body 1 and the inner hexagon bolt 2 are in threaded connection, horizontal narrow and wide grooves 4 are distributed on the clamp body 1, and the clamp body 1 generates elastic deformation; the lower end of a narrow groove 4 on the fixture body 1 is provided with a concave table 3, and the concave table 3 is in clearance fit with the positioning surface of a machined part in a tolerance fit mode.

Furthermore, the root of the horizontal narrow and wide groove 4 of the fixture body 1 is provided with a crack-stopping hole 5 to prevent the root of the narrow and wide groove 4 from cracking.

Furthermore, short arc grooves on two sides of the clamp body 1 are used for weakening the grooves 6, so that the clamp body 1 and the hexagon socket head cap screw are prevented from being difficult to compress due to high material strength.

Further, the concave table 3 arranged on the fixture body 1 is an arc groove or a special-shaped groove.

The invention has the beneficial effects that:

the invention utilizes the principle of metal elastic deformation and solves the problem of batch processing of parts with small clamping surfaces. The invention has the characteristics of simple structure, low manufacturing cost, high positioning precision, convenient clamping and the like, and is particularly suitable for batch production.

Drawings

FIG. 1: the structure view of the multi-station rapid pressing clamp,

FIG. 2: a partial view of the multi-station rapid compaction fixture,

the fixture comprises a fixture body 1, a hexagon socket head cap screw 2, a concave table 3, a narrow and wide groove 4, a crack-stopping hole 5 and a weakening groove 6.

Detailed Description

The invention is further illustrated with reference to the following figures and examples:

the invention is designed according to the principle of metal elastic deformation described above.

As shown in fig. 1 and 2, the multi-station rapid pressing fixture comprises a fixture body 1 and an inner hexagon bolt 2. The horizontal narrow and wide grooves 4 are distributed on the clamp body 1, and are used for ensuring that the clamp body 1 and the hexagon socket head cap screw 2 are elastically deformed when in threaded connection. The lower end of the narrow and wide groove 4 on the fixture body 1 is provided with a concave platform 3 as a part installation position, and the upper end of the narrow and wide groove 4 on the fixture body 1 is provided with a boss as a part pressing surface. The crack-stopping hole 5 prevents the root of the narrow and wide groove 4 from generating cracks; the weakening groove 6 is used for reducing the strength of the root part of the narrow and wide groove 4, so that elastic deformation is generated when the fixture body 1 is in threaded connection with the hexagon socket head cap screw 2.

The method comprises the following specific steps of:

a multi-station rapid pressing clamp is arranged on a numerical control milling machine, a part clamping surface is arranged at the position of a concave table 3 arranged at the lower end of a narrow groove 4 on a clamp body 1, and an inner hexagon bolt is screwed down to press the part. Multiple parts can be installed at one time.

The foregoing is a specific description of the invention. It will be apparent to those skilled in the art that modifications and alternatives to the disclosed construction are within the scope of the invention, for example, the mounting recess 3 could instead be a circular arc groove or a profiled groove. The scope of the invention is defined by the claims.

Claims

1. The utility model provides a multistation compresses tightly anchor clamps fast which characterized in that: the clamp comprises a clamp body (1) and an inner hexagonal bolt (2), wherein the clamp body (1) is in threaded connection with the inner hexagonal bolt (2), and the clamp body (1) generates elastic deformation due to horizontal narrow and wide grooves (4) distributed on the clamp body (1); the lower end of the narrow and wide groove (4) on the fixture body (1) is provided with a concave table (3), and the concave table (3) is in clearance fit with the positioning surface of the machined part in a tolerance fit mode.

2. The multi-station rapid compressing clamp according to claim 1, wherein: the root of the horizontal narrow and wide groove (4) of the clamp body (1) is provided with a crack-stopping hole (5).

3. The multi-station rapid compressing clamp according to claim 1, wherein: the short arc grooves on the two sides of the clamp body (1) are weakening grooves (6).

4. The multi-station rapid compressing clamp according to claim 1, wherein: the concave table (3) arranged on the clamp body (1) is an arc groove or a special-shaped groove.