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A finishing mold with a top pressure device

A pressurizing device and finishing technology, applied in forming tools, manufacturing tools, metal processing equipment, etc., to achieve the effect of improving applicability, improving cold working accuracy, and good workpiece forming quality

Active Publication Date: 2017-10-20
JIANGSU ZHONGHAI HEAVY MACHINE TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For cup and rod parts produced by traditional cold finishing molds, the top of the inner cavity of the workpiece may have upward convex defects. In order to solve this problem, a new type of finishing mold is designed, and a top pressure device is added at the same time. Apply pressure to the top of the workpiece to change the force state of the workpiece, thereby eliminating top defects

Method used

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  • A finishing mold with a top pressure device
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Embodiment Construction

[0025] Attached below figure 1 and 2 And specific embodiment further specification of the present invention:

[0026] A finishing mold with a top pressing device, comprising a finishing mold and a top pressing device; Die 4, punch cover 3, patrix guide upper plate 12, patrix guide column 9 and patrix guide base plate 8; upper formwork 11 and lower formwork 6 corresponding positions are provided with round through holes, guide pillars 7 are four, guide The column 7 longitudinally runs through the circular through hole at the corresponding position of the upper template 11 and the lower template 6, and the guide column 7 passes through the guide sleeve 10 in the upper template 11; There are three mold guide columns 9, one end of the upper mold guide column 9 is fixed on the upper mold guide plate 12 through a screw B, and the other end of the upper mold guide column 9 is connected with the upper mold guide base plate 8 through a bolt C; 17 is fixed on the upper mold guide bas...

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Abstract

The invention relates to a finishing mould with a top pressurizing device. The finishing mould comprises a finishing mould body and the top pressurizing device, wherein the finishing mould body comprises a lower mould board, a guide post, an upper mould board, a lower mould holder, a finishing concave mould, a convex mould, a convex mould sleeve, an upper mould guide upper board, an upper mould guide post and an upper mould guide bottom plate; the top pressurizing device comprises a hydraulic mechanism and a workpiece sleeve head; the hydraulic mechanism comprises a hydraulic cylinder and a piston rod; the piston rod and the workpiece sleeve head are connected by virtue of a shaft coupler; and the hydraulic mechanism is connected to the upper mould guide upper board by virtue of a bolt. In order to solve the solve the problem that the top of a workpiece inner cavity possibly has upward bulges for rod components produced by a conventional cold finishing mould, the invention designs a novel finishing mould; meanwhile, the top pressurizing device is additionally arranged for applying pressure to the top of a workpiece, so that a stress state of the workpiece is changed, and therefore, the top defect is eliminated.

Description

technical field [0001] The invention belongs to the technical field of cold finishing molds, in particular to a finishing mold with a top pressure device. Background technique [0002] Cold finishing dies are widely used in the finishing process of various forging blanks. The design of cold finishing dies is extremely important for cold extrusion forming. Therefore, according to the structure and process characteristics of the workpiece in the finishing process, Combined with the actual equipment situation, it is very important to design the cold finishing mold correctly and choose the material of the cold finishing mold reasonably, so as to improve the bearing capacity of the mold and the forming quality of the workpiece. [0003] For cup and rod parts produced by traditional cold finishing molds, the top of the inner cavity of the workpiece may have upward convex defects. In order to solve this problem, a new type of finishing mold is designed, and a top pressure device is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D37/12
CPCB21D37/10B21D37/12
Inventor 王匀李超陈立宇崔佳森许桢英张太良吴志存申剑
Owner JIANGSU ZHONGHAI HEAVY MACHINE TOOL
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