CN205129457U - A frock clamp for processing latch hook tail inclined plane - Google Patents

Abstract

The utility model relates to a tooling fixture for processing a lock hook tail slope, the tooling fixture includes a base (1), a clamp body (2), an inclined pad (3), a positioning mandrel (4) and a bench vise ( 5), the base (1) is installed on the working platform of the processing machine tool, the clamp body (2), the inclined pad (3) and the bench vise (5) are installed on the base (1), and the positioning mandrel (4) is set On the clamp body (2), the tool clamp has a simple and practical structure, simple and convenient operation, and can improve production efficiency.

Description

A tooling fixture for processing the beveled surface of lock hook tail

technical field

The utility model relates to a tooling device for mechanical processing, in particular to a tooling fixture used for processing a lock hook tail slope.

Background technique

The switching equipment of the existing high-speed railway turnouts in our country all adopts the transfer GW type hook-shaped outer locking device. GW type hook-shaped external locking device is a mechanical device that locks the point rail and the basic rail together, and it plays a very important role in the process of switch conversion and locking. GW-type hook-shaped external locking is mainly composed of locking hook, locking frame, locking rod, locking iron, point rail connecting iron, pin shaft and other main parts. The locking hook is the core of GW-type hook-shaped external locking device Forced parts.

Now, my country is in a period of rapid development of high-speed railways, and the demand for GW-type hook-shaped external locking devices is very large, and the processing of the lock hook as the core force-bearing component must ensure both quality and quantity. Due to the requirements of the design structure and installation position of the hook parts, the tail of the hook parts needs to be processed with a slope with an angle of 3.5°. The hook parts are one of the leading products in the production parts of our factory, and the monthly production workload accounts for more than 40%. , Therefore, it is very necessary to design a set of fixtures to improve machining accuracy and efficiency.

Contents of the invention

The purpose of the utility model is to solve the problems existing in the prior art, and provide a tooling fixture for processing the inclined surface of the lock hook tail, which has a simple and practical structure, simple and convenient operation, and can improve production efficiency.

The technical solution adopted by the utility model is: a tooling fixture for processing the inclined surface of the lock hook tail, including a base 1, a clamp body 2, an inclined pad 3, a positioning mandrel 4 and a bench vise 5, and the base 1 is installed on the processing On the working platform of the machine tool, the clamp body 2, the inclined pad 3 and the bench vise 5 are installed on the base 1, the positioning mandrel 4 is arranged on the clamp body 2, and the inclined pad 3 is provided with an inclined positioning surface, which is connected with the lock hook The parts are in contact, the fixed jaw surface of bench vise 5 is in contact with the side of clamp body 2, and the moving jaw surface is in contact with the locking hook parts.

Compared with the prior art, the utility model has the following beneficial effects: the structure is simple and practical, the operation is simple and convenient, and the production efficiency can be improved.

Description of drawings

Fig. 1 is the installation structure schematic diagram of the present utility model,

FIG. 2 is a top view of FIG. 1 .

detailed description

As shown in Figure 1 and Figure 2, a tooling fixture for processing the inclined surface of the lock hook tail includes a base 1, a clamp body 2, an inclined pad 3, a positioning mandrel 4 and a bench vise 5, and the base 1 is installed on the processing On the working platform of the machine tool, the clamp body 2, the inclined pad block 3 and the bench vise 5 are installed on the base 1, the positioning mandrel 4 is arranged on the clamp body 2, the inclined pad block 3 is provided with an inclined positioning surface, and the inclined positioning surface The angle is consistent with the angle of the lock hook tail slope, and the lock hook parts are in contact, so that the lock hook tail slope is parallel to the working platform of the processing machine tool. The bench vise 5 is used as a clamping tool, and its fixed jaw surface and the side of the clamp body In contact, move the jaw face into contact with the shackle part.

Using a three-point positioning method on one side, the lock hook parts are set on the positioning mandrel, which limits three degrees of freedom, close to the inclined positioning surface, limits one degree of freedom, and clamps in a bench vise, limits one degree of freedom.

When in use, the tool fixture is fixedly installed on the working table of the milling machine, the lock hook part is fixed on the tool fixture, and the tail slope is milled by the milling cutter.

Claims (1)

1. A tooling fixture for processing a lock hook tail slope, characterized in that it comprises a base (1), a clamp body (2), an inclined pad (3), a positioning mandrel (4) and a bench vise (5 ), the base (1) is installed on the working platform of the processing machine tool, the clamp body (2), the inclined pad (3) and the bench vise (5) are installed on the base (1), and the positioning mandrel (4) is set on On the clamp body (2), the inclined pad (3) is provided with an inclined positioning surface, which is in contact with the lock hook parts, and the fixed jaw surface of the bench vise (5) is in contact with the side of the clamp body (2), and the movable jaw The surface is in contact with the shackle part.