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Water-saving control valve of resistance welding piston rod cooling system

A cooling system and resistance welding technology, applied in resistance welding equipment, sliding valves, valve devices, etc., can solve the problems of oil leakage and scrapping of shock absorbers, reduction of hardness of chrome plating layer, scratching of rubber oil seals, etc.

Inactive Publication Date: 2012-10-24
TIANJIN TIANDE SUSPENSION SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of automobile shock absorbers, the piston rod, rubber oil seal and other parts cooperate to reciprocate up and down. At this time, the chrome-plated layer on the working surface of the piston rod is required to have extremely strong wear resistance, and the hardness must reach above HV900 Otherwise, the rubber oil seal will be scratched after the working surface of the piston rod is worn, causing the shock absorber to leak oil and be scrapped.
The upper end of the piston rod of the shock absorber needs to resistance weld a lifting ring connected with the body, the heat generated during welding can reduce the hardness of the chrome-plated layer on the surface of the piston rod

Method used

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  • Water-saving control valve of resistance welding piston rod cooling system
  • Water-saving control valve of resistance welding piston rod cooling system
  • Water-saving control valve of resistance welding piston rod cooling system

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Embodiment Construction

[0015] attached by figure 1 It can be seen that the present invention includes a cylinder body 14 and a guide support 18 provided in the cylinder body 14, and also includes a guide column switch 10, and the guide column switch 10 is arranged in the guide support 18, and the cylinder body 14 and the guide column The junction between the support 18 and the guide post switch 10 is provided with a front guide cylinder 12 and a rear guide cylinder 15, and two different cavities are formed between the cylinder body 14 and the guide post switch 10 and the guide support 18 and the guide post switch 10. Body, the cavity between the guide support 18 and the guide post switch 41 is provided with a return spring 19 . A long hole is drilled in the axial center of the guide column switch 10, and two rows of holes communicating with the axial long holes are drilled on the surface, and a sealing bolt 17 is provided at the starting end of the axial long hole. The end of the cylinder body 14 a...

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Abstract

The invention relates to a water-saving control valve for cooling piston rods during resistance welding production of absorber piston rods and hoisting rings, in particular to a water-saving control valve of a resistance welding piston rod cooling system. The water-saving control valve comprises a cylinder, a guide support arranged in the cylinder and a guide pillar switch, the guide pillar switch is arranged in the guide support, a front guide cylinder and a rear guide cylinder are arranged on a combined portion of the cylinder and the guide pillar switch and on a combined portion of the guide support and the guide pillar switch to enable two different cavities between the cylinder and the guide pillar switch and between the guide support and the guide pillar switch to be formed, and return springs are arranged in the cavity between the guide support and the guide pillar switch. The water-saving control valve of the resistance welding piston rod cooling system has the advantages that water can be effectively supplied for cooling during welding, water is only supplied at the moment of welding as the control valve plays a role in water saving, and power of on-off control of the control valve is from movement of a lower right moveable electrode without additional devices.

Description

technical field [0001] The invention relates to a water-saving control valve for cooling the piston rod during resistance welding production of the shock absorber piston rod and the suspension ring. Background technique [0002] During the use of automobile shock absorbers, the piston rod, rubber oil seal and other parts cooperate to reciprocate up and down. At this time, the chrome-plated layer on the working surface of the piston rod is required to have extremely strong wear resistance, and the hardness must reach above HV900 Otherwise, the rubber oil seal will be scratched after the working surface of the piston rod is worn, causing the oil leakage of the shock absorber to be scrapped. The upper end of the piston rod of the shock absorber needs to be resistance-welded with a lifting ring connected to the vehicle body. The heat generated during welding can reduce the hardness of the chrome-plated layer on the surface of the piston rod. Therefore, there must be a cooling s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/26F16K3/316B23K11/36
Inventor 李勇
Owner TIANJIN TIANDE SUSPENSION SYST
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