CN203044637U

CN203044637U - Forging precision thermal punching mold

Info

Publication number: CN203044637U
Application number: CN 201220725117
Authority: CN
Inventors: 卢鑫; 卢秀富; 张慧力; 江巧军; 赵晖; 吴林国
Original assignee: ZHEJIANG HUANGYAN JIANGXIN FORGING CO Ltd
Current assignee: ZHEJIANG HUANGYAN JIANGXIN FORGING CO Ltd
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2013-07-10
Anticipated expiration: 2022-12-26

Abstract

The utility model relates to a forging precision thermal punching device which comprises a punch press and a punching mold. The punching mold comprises an upper mold and a lower mold. A guiding pillar and a guiding sleeve are used for guiding an upper template and a lower template. The lower mold comprises the lower template and a concave mold which is fixed on the lower template. The upper mold comprises the upper template, a mold handle, a fixing plate, a material discharging plate and a puncher pin. The fixing plate is fixedly connected with the upper template. The forging precision thermal punching device is characterized in that a second-level guiding pillar and a second-level guiding sleeve are used for guiding the fixing plate and the material discharging plate. Four sets of nitrogen springs are arranged between the fixing plate and the material discharging plate.

Description

The accurate hot piercing mould of forging

Technical field

The present invention relates to the accurate hot piercing mould of a kind of forging.

Background technology

The forging punching die structure that existing widespread production is used, conventional design mould bases guiding and spring compression discharging; The punching precision only meets standard GB/T 12362-2003; If need to guarantee higher size and positional precision, must need innovate mould structure.

Summary of the invention

The object of the present invention is to provide the accurate hot piercing mould of a kind of forging, the structure of existing punching die is improved, adopt accurate two conductor earthed system and nitrogen spring to compress forging, drift takes local titanium carbonitride to handle, and improves punch side fineness; Reduce the drift wearing and tearing; Improve the drift life-span, and improve the precision of punching.

By the following technical solutions above-mentioned for realizing:

The accurate hot piercing mould of a kind of forging comprises punch press and punching die, and described punching die comprises upper die and lower die, and by guide pillar and guide column sleeve guiding, counterdie comprises lower bolster and die between the upper and lower template, and die is fixedly on the lower bolster; Patrix comprises cope match-plate pattern, die shank, fixed head, stripper and drift, fixed head and cope match-plate pattern are connected, it is characterized in that: by secondary guide pillar and secondary guide column sleeve guiding, between described fixed head and stripper, also be provided with four groups of nitrogen springs between described fixed head and the stripper.

Described drift takes local titanium carbonitride to handle.

The utility model adopts nitrogen spring to compress forging, and the thrust performance is maximum, and constant pressure; Adopt accurate two conductor earthed system to ensure operating accuracy and the punching dimensional accuracy of drift, prevent that drift from fractureing; Drift takes local titanium carbonitride to handle, and improves punch side fineness, reduces the drift wearing and tearing, improves the drift life-span.

Description of drawings

Fig. 1 is the structural representation of the utility model punching die;

The title of each parts is as follows in the accompanying drawing: 1, lower bolster; 2, lower bolster; 3, dash cover down; 4, die; 5, stripper; 6, drift; 7, fixed head; 8, upper padding plate; 9, cope match-plate pattern; 10, secondary guide pillar; 11, secondary guide pin bushing; 12, die shank; 13, nitrogen spring; 14, guide pin bushing; 15, guide pillar.

The specific embodiment

As shown in Figure 1, the accurate hot piercing mould of a kind of forging comprises punch press and punching die, described punching die comprises upper die and lower die, by guide pillar 15 and guide column sleeve 14 guiding, counterdie 9 comprises lower bolster 1 and die 4 between the upper and lower template, and die 4 is fixedly on the lower bolster 1; Patrix comprises cope match-plate pattern 9, die shank 12, fixed head 7, stripper 5 and drift 6, fixed head 7 is connected with cope match-plate pattern 9, lead by secondary guide pillar 10 and secondary guide column sleeve 11 between described fixed head 7 and the stripper 5, also be provided with four groups of nitrogen springs 13 between described fixed head 7 and stripper 5, described drift 6 takes local titanium carbonitride to handle.

During the utility model work workpiece is placed on the die, adopts nitrogen spring to compress forging; When contact forging 0.1mm, the thrust performance is maximum, and constant pressure; Adopt accurate two conductor earthed system to be respectively template direction and secondary guiding during punching press, operating accuracy and punching dimensional accuracy when impacting downwards with the guarantee drift prevent that drift from fractureing; Drift takes local titanium carbonitride to handle in addition, improves punch side fineness; Reduce the drift wearing and tearing; Improve the drift life-span.

Claims

1. the accurate hot piercing mould of a forging comprises punch press and punching die, and described punching die comprises upper die and lower die, and by guide pillar and guide column sleeve guiding, counterdie comprises lower bolster and die between the upper and lower template, and die is fixedly on the lower bolster; Patrix comprises cope match-plate pattern, die shank, fixed head, stripper and drift, fixed head and cope match-plate pattern are connected, it is characterized in that: by secondary guide pillar and secondary guide column sleeve guiding, between described fixed head and stripper, also be provided with four groups of nitrogen springs between described fixed head and the stripper.

2. the accurate hot piercing mould of a kind of forging as claimed in claim 1, it is characterized in that: described drift takes local titanium carbonitride to handle.