CN103381514A

CN103381514A - Fixing device for electrode processing

Info

Publication number: CN103381514A
Application number: CN201310288452XA
Authority: CN
Inventors: 王懿; 徐力; 闫丽丽; 孙乃涛; 牛莉
Original assignee: Tianjin Zhonghuan Sanfeng Electronic Co Ltd
Current assignee: Tianjin Zhonghuan Sanfeng Electronic Co Ltd
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2013-11-06

Abstract

The invention relates to a fixing device for electrode processing by adopting the injection mold submarine gate electric spark. The EROWA locating plate of the fixing device is fixed at the lower part of a base, a small circular hole and a big circular hole are formed in the central symmetry positions of two U-shaped side surfaces of the base respectively, pin holes are formed in the central positions of the upper parts of the U-shaped side surfaces of the base, by taking the perpendicular edges of the base and the pin holes as the axis, a plurality of angle holes are symmetrically formed along the two edges of each pin hole, a bearing is mounted in the big circular hole, square nuts are mounted in square grooves, an upper through hole and a lower through hole are formed in the upper part of a locking lever, a shoulder bolt is matched with the bearing and the square nuts through the lower through hole to tightly fix a locking rod on the base, side plane surfaces of the locking rod are oppositely fitted with the U-shaped inner side surfaces for positioning, and a pin fixes the locking rod in the different positions in different angles through the upper through hole. The device has the advantages that the design is artistic, the operation is stable, the structure is compact, the processing operation is convenient, and the adjustable angle of the electrode is enlarged, so that the processing accuracy and consistency of the submarine gate are ensured, the work difficulty of operators is reduced, the processing cost of a die is reduced, and the application scope is wide.

Description

A kind of fixture of machined electrode

Technical field

The present invention relates to the injection mould processing field, relate in particular to the fixture of a kind of machined electrode of injection mold sub marine gate electric spark.

Background technology

at present, because electronic product is more and more higher to appearance requirement, and the superiority of the production automation, increasing injection mold adopts the structure of sub marine gate, this kind pouring gate structure is generally cast gate to be arranged on inner surface or the shelter, side of plastic products, or be arranged on the muscle that product surface be can not see, on post, can not stay the gentle line of spray trace that brings due to injection at product surface in this pouring gate structure forming process, thereby the outward appearance that guarantees plastic products is smoothly bright, and when plastic products are ejected and the waste material automatic breaking, be easy to realize the production automation and be widely adopted.But because sub marine gate slips into below die joint, advance people's die cavity along oblique, so its processing difficulty comparatively.Usually the method that adopts is the die workpiece of need processing to be removed forward on the consistent angle of electric spark board motion of main shaft angle, adopts conical electrode along the oblique spark machined of carrying out.This processing method, the clamping that makes die workpiece is made as benchmark with the crest line place of workpiece, make centering very inconvenient, the length that expends time in, efficient low and difficult assurance size and positional precision, and electrode clamping is take electrode points as benchmark, after discharge, due to the cusp loss, benchmark is lost, therefore electrode can not be reused, waste is serious.

Summary of the invention

In view of the deficiency that prior art exists, the object of the invention is to provide under a kind of prerequisite not changing existing equipment, high accuracy, high efficiency, the fixture of a kind of machined electrode of electric spark that the injection mold sub marine gate structure of conveniently adjusting angle is used.

for achieving the above object, the present invention adopts following technical scheme: a kind of fixture of machined electrode, it is characterized in that: it comprises base, check lock lever, the EROWA spacer, bearing, square nut, shouldered tap bolt, pin, described EROWA spacer is fixed on below base by four dog screws, Central Symmetry position, two U-shaped sides of described base is respectively equipped with a small sircle hole and big hole, the small sircle hole outside also is provided with square groove, central upper portion position, two U-shaped sides is provided with pin hole, take pin hole and base perpendicular edge as axle, be arranged with a plurality of angle holes along pin hole both sides, described bearing is arranged in big hole, described square nut is arranged in square groove, the relative pin hole in described check lock lever top and circular hole position are respectively equipped with two via holes in up and down, shouldered tap bolt is fastened on check lock lever on base by lower via hole fitted bearing and square nut, the side plane of check lock lever fit location relative to base U-shaped medial surface, pin is fixed on Difference angles by upper via hole with check lock lever.

The center superposition of described check lock lever and EROWA spacer.

The inside and outside circle of described bearing is concentric circles.

Small sircle hole and the big hole center line of two of described bases U-shaped side overlap.

This device design is ingenious, working stability, and compact conformation, easy to process, add the large electrode adjustable angle, thereby the machining accuracy and the uniformity that guarantee sub marine gate are guaranteed, and have reduced operator's work difficulty and Mould Machining cost, applied widely.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is structural representation of the present invention;

Fig. 3 is the top view of base;

Fig. 4 is the front view of check lock lever;

Fig. 5 is work schematic diagram of the present invention.

The specific embodiment

The present invention is further illustrated below in conjunction with accompanying drawing.

a kind of fixture of machined electrode as shown in the figure, comprise base 1, check lock lever 2, EROWA spacer 3, bearing 4, square nut 5, shouldered tap bolt 6, pin 7, EROWA spacer 3 is fixed on below base 1 by four dog screws, Central Symmetry position, 1 two U-shaped sides of base is respectively equipped with a small sircle hole 11 and big hole 12, small sircle hole 11 outsides also are provided with square groove 13, central upper portion position, two U-shaped sides is provided with pin hole 14, take pin hole 14 with base 1 perpendicular edge as axle, be arranged with a plurality of angle holes 15 along pin hole 14 both sides, bearing 4 is arranged in big hole 12, square nut 5 is arranged in square groove 13, the check lock lever 2 relative pin holes 14 in top and circular hole 12 positions are respectively equipped with two via holes in up and down, shouldered tap bolt 6 is fastened on check lock lever 2 on base 1 by lower via hole fitted bearing 4 and square nut 5, the side plane of check lock lever 2 fit location relative to base 1U shape medial surface, pin 7 is fixed on Difference angles by upper via hole with check lock lever 2, be used for adjusting angle.In order to guarantee accuracy of electrode processing, to make simultaneously the center superposition of check lock lever 2 and EROWA spacer 3, the inside and outside circle of bearing 4 is concentric circles, the small sircle hole 11 of 1 two of bases U-shaped side and big hole 12 center lines overlap, and angle hole 15 is set to 25 °, 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 ° usually.

During use, first will process qualified conical electrode and be locked on check lock lever 2, check lock lever 2 angles rotate to 0 °, then fixture are installed on lathe, take the electrode summit as benchmark, machining coordinate system are set.Again shouldered tap bolt 6 is unclamped, check lock lever 2 is rotated to the angle that the sub marine gate structure is set, fixing with pin 7, locking belt rotator bolt 6.Calculate simultaneously rotation rear electrode culminating point coordinate figure in machining coordinate is, again adjust coordinate figure, main shaft is completed two-axle interlocking processing along the cast gate angle of setting.

Claims

1. the fixture of a machined electrode, it is characterized in that: it comprises base (1), check lock lever (2), EROWA spacer (3), bearing (4), square nut (5), shouldered tap bolt (6), pin (7), described EROWA spacer (3) is fixed on below base (1) by four dog screws, Central Symmetry position, (1) two U-shaped side of described base is respectively equipped with a small sircle hole (11) and big hole (12), small sircle hole (11) outside also is provided with square groove (13), central upper portion position, two U-shaped sides is provided with pin hole (14), take pin hole (14) and base (1) perpendicular edge as axle, be arranged with a plurality of angle holes (15) along pin hole (14) both sides, described bearing (4) is arranged in big hole (12), described square nut (5) is arranged in square groove (13), the relative pin hole in described check lock lever (2) top (14) and circular hole (12) position are respectively equipped with two via holes in up and down, shouldered tap bolt (6) is fastened on check lock lever (2) on base (1) by lower via hole fitted bearing (4) and square nut (5), the side plane of check lock lever (2) fit location relative to base (1) U-shaped medial surface, pin (7) is fixed on Difference angles by upper via hole with check lock lever (2).

2. the fixture of a kind of machined electrode according to claim 1, is characterized in that: the center superposition of described check lock lever (2) and EROWA spacer (3).

3. the fixture of a kind of machined electrode according to claim 1, it is characterized in that: the inside and outside circle of described bearing (4) is concentric circles.

4. the fixture of a kind of machined electrode according to claim 1 is characterized in that: small sircle hole (11) and big hole (12) center line of (1) two of described base U-shaped side overlap.