CN206047278U - A kind of EDM auxiliary clamps - Google Patents

Abstract

The utility model discloses a kind of EDM auxiliary clamps, it is arranged between lathe and copper electrode, including spacer, the first spreading blind rivet, the second spreading blind rivet, clamping screw and clamp head, the spacer afterbody is provided with the first locating slot, and first locating slot is tensed with lathe by the first spreading blind rivet and is connected；The spacer offers connecting hole, and the clamp head is provided with screwed hole, and the spacer is locked with screwed hole through after connecting hole by screw；It is provided with the clamp head for accommodating the storage tank of clamping screw, a sidepiece of the storage tank offers through hole, and the copper electrode is connected with clamping screw through the through hole by the second spreading blind rivet.This utility model is connected with lathe and copper electrode in the form of blind rivet, and the fixation of copper electrode is realized by clamping screw to the uniform coupling mechanism force of the second spreading blind rivet, the stability and accuracy in clamping process is improved, is made electrode clamping process become easy, quick, is reduced the adjustment time.

Description

An auxiliary fixture for EDM

technical field

The utility model relates to a fixture used in the EDM (Electrical Discharge Machining, electric discharge machining) process, in particular to an auxiliary fixture for EDM.

Background technique

EDM (Electrical Discharge Machining, the abbreviation of Electrical Discharge Machining), the use of precision machining electrodes, pulse spark discharge metal erosion on the workpiece, cutting shape, it is mainly used for processing a variety of complex shapes and precision small workpieces.

Injection mold processing includes various processing methods such as turning, milling, grinding, wire cutting and EDM. A pair of molds, especially in the processing of its cavity, often use EDM electric discharge machining, and when processing electrodes for EDM electric discharge machining, the processing machine tools used are different with the different processing procedures. Different fixtures are required to clamp and position the electrode on the processing machine tool. The disassembly and clamping process of the fixture will not only bring a lot of tedious and repetitive mechanical labor, prolong the processing time, but also affect the clamping of the mold electrode. Accuracy and repeatability of positioning.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and provide an auxiliary fixture for EDM that makes the electrode clamping process simple and fast, improves machining accuracy, and stabilizes product quality.

The purpose of this utility model is achieved through the following technical solutions:

An auxiliary fixture for EDM, which is arranged between a machine tool and a copper electrode, and includes a positioning piece, a first extension rivet, a second extension rivet, a locking bolt and a fixture head, and the tail of the locating piece is provided with a first Positioning groove, the first positioning groove is tensioned and connected with the machine tool through the first extension pull nail; the positioning piece is provided with a connecting hole, the clamp head is provided with a threaded hole, and the positioning piece passes through the connecting hole through a screw Afterwards, it is locked and fixed with the threaded hole; the fixture head is provided with an accommodating groove for accommodating the locking bolt, and a through hole is opened on one side of the accommodating groove, and the copper electrode passes through the second extension pull nail Pass through the through hole and connect with the locking bolt.

Specifically, the upper part of the first positioning groove is provided with more than two first openings, the machine tool is provided with a circular base, and the end of the circular base is provided with several openings corresponding to the number and position of the first openings. corresponding to the first positioning bump.

The fixture head is provided with a second positioning groove towards the side of the copper electrode, the upper part of the second positioning groove is provided with more than two second openings, and the upper end of the copper electrode is provided with several The position corresponds to the second positioning bump.

Specifically, the locking bolt is a pin bolt.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The EDM horizontal erosion fixture of the utility model is connected with the machine tool and the copper electrode in the form of a pull nail, and the copper electrode is fixed by the uniform locking force of the locking bolt on the second extension pull nail, and the stability in the clamping process is improved. The operator only needs a few simple operations to quickly replace and install the workpiece between the machine tools, making the electrode clamping process simple and fast, reducing the adjustment time; it is conducive to improving the productivity of the workshop and reduce costs; through the matching of the opening and the positioning bump, it is beneficial to ensure the machining accuracy of the workpiece and stabilize the product quality.

Description of drawings

Fig. 1 is a schematic diagram of an exploded structure of the utility model.

Fig. 2 is a perspective view of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example

As shown in Figure 1, this embodiment provides an auxiliary fixture for EDM, which is arranged between the machine tool and the copper electrode 1, and includes a positioning piece 2, a first extension rivet 3, a second extension rivet 4, and a locking bolt 5 And the clamp head 6, the tail of the positioning piece 2 is provided with a first positioning groove 7, and the first positioning groove 7 is tensioned and connected with the machine tool through the first extension pull nail 3; the positioning piece 2 is provided with a connecting hole 8 , the clamp head 6 is provided with a threaded hole, and the positioning piece 2 is locked and fixed with the threaded hole after passing through the connecting hole with a screw; the clamp head 6 is provided with an accommodating groove 9 for accommodating the locking bolt 5, A through hole is opened on one side of the accommodating groove 9 , and the copper electrode 1 is connected with the locking bolt 5 through the through hole through the second extension pull nail 4 .

The top of the first positioning groove 7 is provided with more than two first openings 10, and the lathe is provided with a circular base 11, and the end of the circular base 11 is provided with several The position corresponds to the first positioning bump 12 .

The fixture head 6 is provided with a second positioning groove 12 facing the side of the copper electrode 1, and the upper part of the second positioning groove is provided with more than two second openings 13, and the upper end of the copper electrode 1 is provided with several The number and position of the two openings 13 correspond to the second positioning protrusions 14 .

Through the above structure, when the auxiliary fixture for EDM is locked and connected with the machine tool, the matching of the opening and the positioning protrusion is beneficial to ensure the processing accuracy of the workpiece and stabilize the product quality.

In this implementation, the locking bolt 5 is a pin bolt. The pull stud is clamped by the wave in the clamp head, and the electrode is locked by turning up and down.

It should be noted that the above-mentioned specific implementation methods are only preferred embodiments of the utility model and the applied technical principles. Within the technical scope disclosed in the utility model, any person familiar with the technical field will not deviate from the utility model The changes, modifications, substitutions, combinations, and simplifications made under the spirit and principles of the invention should be equivalent replacement methods, and should all be covered by the protection scope of the present utility model.

Claims (4)

1. a kind of EDM auxiliary clamps, are arranged between lathe and copper electrode, it is characterised in that：Including spacer, the first spreading Blind rivet, the second spreading blind rivet, clamping screw and clamp head, the spacer afterbody are provided with the first locating slot, first positioning Groove is tensed with lathe by the first spreading blind rivet and is connected；The spacer offers connecting hole, and the clamp head is provided with screwed hole, The spacer is locked with screwed hole through after connecting hole by screw；It is provided with the clamp head for accommodating locking screw The storage tank of bolt, a sidepiece of the storage tank offer through hole, and the copper electrode is led to through described by the second spreading blind rivet Hole is connected with clamping screw.

2. EDM auxiliary clamps according to claim 1, it is characterised in that：The top of first locating slot offers The first peristome of two or more, the lathe are provided with cup dolly, and the end of the cup dolly is provided with several and opens with first Corresponding first locating convex block of oral area quantity and position.

3. EDM auxiliary clamps according to claim 1, it is characterised in that：The clamp head is opened towards copper electrode side The second locating slot is provided with, the top of second locating slot offers the second peristome of two or more, and the copper electrode upper end sets There are several the second locating convex blocks corresponding with the second peristome quantity and position.

4. EDM auxiliary clamps according to any one of claims 1 to 3, it is characterised in that：The clamping screw is marble Bolt.