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A production process for sub-frame bolts

A production process and sub-frame technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve problems such as troublesome operation and thread scratches, and achieve the effects of reducing labor costs, high cleaning efficiency, and simple and convenient operation

Active Publication Date: 2020-10-16
重庆源阔机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the brush has been used for a long time, and a certain amount of burrs and iron filings will accumulate in the brush. It is necessary to clean the burrs and iron filings in the brush, otherwise, the burrs in the brush will be damaged during the grinding process of the screw. Iron filings and iron filings will scratch the thread on the screw rod, and the cleaning of the iron filings and burrs in the brush in this patent requires the brush to be disassembled and cleaned one by one, which is cumbersome to operate

Method used

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  • A production process for sub-frame bolts
  • A production process for sub-frame bolts
  • A production process for sub-frame bolts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A production process of sub-frame bolts includes the following steps:

[0031] Processing of steel blanks: Use cylindrical carbon alloy steel materials and cut the steel with a cutting machine.

[0032] Bolt head and shank forming: The bolt head and shank are formed by cold extrusion technology, which is completed by a multi-station cold forming process.

[0033] Heat treatment: The quenching temperature used is 860-870℃, and the quenching time is 30min. The tempering temperature is 385-400℃, and the tempering time is 80min.

[0034] Rod processing: Grind the rod to the size of the blank diameter before thread tapping.

[0035] Flaw detection treatment: use magnetic powder for flaw detection. Magnetic particle inspection is a non-destructive inspection method that detects defects on or near the surface of ferromagnetic materials by accumulating magnetic particles in the leakage magnetic field near the defect, and belongs to the prior art.

[0036] Thread processing: Use a thread...

Embodiment 2

[0044] Combine figure 2 As shown, the fixed body 4 in this embodiment is a vertical tube, combined with image 3 As shown, the fixed body 4 is provided with a fixed cavity, and the sectional shape of the fixed body 4 is rectangular, image 3 The right side wall of the middle fixing body 4 is provided with a slot hole for extending the screw rod, and the head of the bolt is contained in the fixing cavity. The screw burr processing device includes an automatic unloading mechanism for automatically unloading the bolts. Combine Figure 4 As shown, the automatic unloading mechanism includes two vertically arranged magnet plates 18, two laterally arranged upper support plates 22, and two laterally arranged lower support plates 24. The two magnet plates 18 are respectively located at Figure 4 On the left and right sides of the middle fixed body 4, two magnet plates 18 are fixed on the operating table 1 by screws. The two magnet plates 18 are provided with an upper support plate 22 fro...

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Abstract

The invention relates to the field of bolt machining, in particular to a production process of an auxiliary frame bolt. The production process comprises the following steps of steel blank machining, bolt head and rod forming, heat treatment, rod machining, flaw detection treatment, thread machining, screw burr treatment and antiseptic treatment. In the step of screw burr treatment, a screw burr treatment device is used for treatment. When scrap iron and burrs in brushes need to be cleared away, support rods are rotated so that the brushes on the support rods can face the outer side, the support rods are clamped on a disc through clamping parts, then a steel wire brush enters the brushes, a first electromagnet in the steel wire brush is powered on, and the disc rotates. According to the scheme, the scrap iron and burrs in the brush can be cleared away conveniently.

Description

Technical field [0001] The invention relates to the field of bolt processing, in particular to a production process of sub-frame bolts. Background technique [0002] At present, the production steps of bolts mainly include steel blank processing, bolt head and rod forming, heat treatment, rod processing, flaw detection treatment, thread processing, screw burr treatment, surface mechanical strengthening and anti-corrosion treatment. [0003] Among them, when the thread on the screw is processed, the surface of the screw will produce burrs and iron chips. Therefore, in order to make the surface of the thread on the screw smooth, the surface of the screw needs to be polished. The current polishing method is mainly manual. Polishing is less efficient, and the work intensity of polishing is greater, and the labor cost is higher. [0004] Although the invention patent "a bolt processing surface treatment device" with authorization number CN107253110B has disclosed the use of a device to a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00F16B35/00
CPCB23P15/00F16B35/00
Inventor 张泽峰
Owner 重庆源阔机械有限公司