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Impact-resistant deburring type bolt trimming die

A trimming die, burr-type technology, applied in nuts, threaded fasteners, connecting components, etc., can solve the problems of affecting the original structure of the bolt, easily leaving burrs, increasing the workload, etc., to achieve convenient and flexible disassembly and assembly. The effect of improving adaptability and reducing workload

Active Publication Date: 2021-08-10
安庆牛力模具股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The defect of the existing mold is that the screw rod is directly inserted into the die hole of the lower die. When the stamping pressure of the trimming die is too large, it is easy to cause the screw rod of the bolt to break or crack, which affects the original structure of the bolt. In addition, the existing mold After trimming the bolts, it is easy to leave burrs, which requires additional processing, which increases the workload

Method used

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  • Impact-resistant deburring type bolt trimming die
  • Impact-resistant deburring type bolt trimming die
  • Impact-resistant deburring type bolt trimming die

Examples

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Embodiment 1

[0031] Such as Figure 1-3 As shown, a kind of impact-resistant deburring type bolt edge trimming die of this embodiment comprises an upper die 1 and a lower die 2, and a die hole for accommodating a screw rod of a bolt is provided in the lower die 2, and the lower part of the die hole There is a ejector rod 3, and the bottom of the upper mold 1 is embedded with a trimming die 4, the number of sides of the trimming die 4 is consistent with the number of trimming edges of different types of bolts, and the operation is performed according to different types of bolts. It is more convenient, the adaptability of the mold is also greatly improved, the cost is reduced, and the practicability is greatly improved. The lower mold 2 is provided with a cutting assembly 5 for bolt deburring, and the top of the lower mold 2 surrounds the outer ring of the die hole A buffer piece 6 is embedded.

[0032] The cutting assembly 5 includes a gear 52 sleeved on the outside of the lower die 2, a c...

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Abstract

The invention relates to the technical field of dies, in particular to an impact-resistant deburring type bolt trimming die. The die comprises an upper die and a lower die, a die hole for containing a screw of a bolt is formed in the lower die, an ejector rod is arranged on the lower portion of the die hole, a trimming die body is embedded in the bottom end of the upper die, a cutting assembly for deburring of the bolt is sleeved with the lower die, and a buffer piece is embedded in the top of the lower die around the outer ring of the die hole. The die is high in adaptability, flexible to use and easy to operate, has better impact resistance, can effectively avoid the risk of breakage of the bolt in the edge cutting process, ensures the structural integrity of the bolt, can effectively remove burrs generated in the edge cutting process of the bolt, does not need additional treatment, and reduces the workload.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to an impact-resistant deburring type bolt edge trimming mould. Background technique [0002] After the bolts are cold-headed to produce blanks, they need to be trimmed with a trimming die to ensure high-quality bolt heads. The existing bolt trimming dies include a lower die and a trimming die, and the screw is inserted into the lower die. In the die hole of the die, the support surface at the bottom of the square bolt head is supported by the top surface of the lower die. After the trimming die is punched down, the excess part of the bolt head is cut off to form a regular polygonal head, and then the ejector rod is pushed upward from the bottom of the die hole. , Demoulding the bolts. [0003] The defect of the existing mold is that the screw rod is directly inserted into the die hole of the lower die. When the stamping pressure of the trimming die is too large, it is e...

Claims

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Application Information

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IPC IPC(8): B21D28/14B21D53/24
CPCB21D28/14B21D53/24Y02P70/10
Inventor 严冬祥
Owner 安庆牛力模具股份有限公司