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Demolding structure applied to automatic precision forging automobile hub bearing production line

An automatic precision and wheel bearing technology, which is used in the manufacture of tools, vehicle parts, railway car body parts, etc., can solve the problems of uneven demoulding of forgings, and achieve the effect of avoiding forgings from sticking to the inserts.

Pending Publication Date: 2022-03-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a demoulding structure applied to the automatic precision forging automobile wheel hub bearing production line to solve the problem of unsteady demolding of forgings in the automatic forging automobile wheel hub bearing production line. During the ejection process of forgings, The forging is carried by the ejector against the demoulding insert, so as to avoid the situation that the robot cannot be clamped due to the inclination of the forging, and improve the efficiency of the production line

Method used

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  • Demolding structure applied to automatic precision forging automobile hub bearing production line
  • Demolding structure applied to automatic precision forging automobile hub bearing production line
  • Demolding structure applied to automatic precision forging automobile hub bearing production line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1: A certain type of automobile hub bearing such as image 3 As shown, the height T1 below the parting surface of the forging is 56mm, the draft angle γ is 2°, and the width H1 of the ring at the inner hole below the parting surface of the forging is 13mm. The front view and left view of the designed forging demoulding structure are as follows Figure 4 and Figure 5 As shown, among them: 1 is the upper mold, 2 is the mold base of the lower mold, 3 is the hub bearing forging with flash and punching skin, 4 is the demoulding insert, 5 is the ejector rod, 6 is the screw, 7 is The upper boss, 8 is the middle disc, and 9 is the lower slider;

[0061] The size of the upper boss 7 is the same as the size of the inner hole below the parting surface of the forging. The thickness T2 of the middle disc 8 is 15mm, and the matching cone angle α of the disc is 45°. The bearing capacity of the middle disc 8 of the demoulding insert 4 The width H2 of the hub bearing forging...

Embodiment 2

[0066] Example 2: A certain type of automobile hub bearing such as Figure 10 As shown, the height T1 below the parting surface of the forging is 90mm, the draft angle γ is 0.7°, and the width H1 of the ring at the inner hole below the parting surface of the forging is 20mm; the front view of the demoulding structure of the designed forging is as follows Figure 11 As shown, the size of the upper boss is the same as the size of the inner hole below the parting surface of the forging, the thickness T2 of the middle disc is 25mm, the matching cone angle α of the disc is 60°, and the middle disc 8 of the demoulding insert 4 The width H2 of the bearing hub bearing forging 3 is determined by the formula (1), where the contact coefficient k 1 Take 0.7, H2 is calculated as 14mm;

[0067] The hole on the lower slide block of the demoulding insert 4 is used for cooperating with the screw rod, and the linear section length T3 of the oblong hole 11 on the slide block of the demoulding i...

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Abstract

The demolding structure applied to the automatic precision forging automobile hub bearing production line comprises a lower mold base, a demolding insert, an ejector rod and a screw rod, a mold cavity is formed in the lower mold base, the demolding insert comprises an upper boss, a middle disc and lower sliding blocks, the lower sliding blocks comprise two sliding blocks, and long round holes are formed in the sliding blocks; a center channel is formed in the bottom of the lower die base, two sliding ways are arranged in the lower die base, two sliding blocks extend into the two sliding ways, an upper boss extends into an inner hole in the lower portion of a parting surface of a hub bearing forge piece, the hub bearing forge piece is borne by a middle disc, and the upper end of an ejector rod penetrates into the center channel to abut against the middle disc. Two threaded holes are formed in the lower die base, a screw is arranged in each threaded hole in a matched mode, and the free end of each screw penetrates into the lower die base and extends out of the long round hole in the corresponding sliding block to limit the demolding insert. The problem that a robot cannot accurately clamp the forge piece due to inclination during ejection is solved, stable demolding of the forge piece is guaranteed, and the production line efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of forging demoulding structures, and in particular relates to a demoulding structure applied to an automatic precision forging automobile hub bearing production line. Background technique [0002] Forgings are the basic parts of various manufacturing industries, and are widely used in automotive, aerospace, shipbuilding and other industrial fields. Precision forging means that after the part is formed, it can be used as a mechanical component with only a small amount of processing or no further processing, that is, a blank that is close to the shape and size of the part. [0003] Precision forging forming technology is an advanced manufacturing technology gradually improved and developed on the basis of ordinary forging forming technology. It integrates new materials, new energy, information technology, computer technology and other multi-disciplinary high-tech application technologies. High efficiency, en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/14B21J13/02B21K7/12
CPCB21J13/14B21J13/02B21K7/12
Inventor 徐文臣徐佳炜单德彬郭卜瑞陈宇
Owner HARBIN INST OF TECH