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A wheel rim ring rolling forming equipment and method

A forming method and forming equipment technology, applied in the direction of metal rolling, etc., can solve the problems affecting the center of gravity of the rim, complex mold design, high forming pressure, etc., and achieve the effect of saving materials, low cost and good forming performance

Active Publication Date: 2017-12-12
吕天保 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the plate welded into a cylinder, there is a weld seam in roll forming, which affects the center of gravity of the rim
For forging and forming rims, there are problems such as high forming pressure, complex mold design, and easy occurrence of folded interlayers.
For casting molding, there are problems such as low strength and thick rims

Method used

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  • A wheel rim ring rolling forming equipment and method
  • A wheel rim ring rolling forming equipment and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides a wheel rim ring rolling forming equipment, including a frame, an upper forming roll 2, a lower forming roll 4, a first power system that provides power for the upper forming roll 2, and provides power for the lower forming roll 4 The second power system and the fixed support 11 of the lower forming roller shaft and the movable support 7 of the lower forming roller shaft;

[0030] The upper part of the frame is provided with two first hydraulic cylinders for controlling the lifting of the upper forming roller 2, and each of the first hydraulic cylinders is provided with a connecting rod; the first power system includes an upper forming roller shaft , each of the connecting rods is connected with a first bearing seat 15, and each of the first bearing seats 15 is provided with a first bearing, and the upper forming roller shaft runs through two of the first bearings, and the two of the first bearings The upper forming roller 2 is sheathed on the u...

Embodiment 2

[0036] This embodiment is an improved embodiment based on the first embodiment. In the rim ring rolling forming equipment, the first power system includes a first motor, and the output shaft of the first motor passes through the first universal The joint 14 is connected with the upper forming roller shaft; the second power system includes a second motor, and the output shaft of the second motor is connected with the lower forming roller shaft through the second universal joint 13, because the rim When the ring rolling forming equipment is working, it will rotate rapidly, and both the upper forming roller shaft and the lower forming roller shaft will receive a certain pressure, resulting in the deformation of the upper forming roller shaft and the lower forming roller shaft. The knuckle is connected with the power system, which can avoid the damage of the rim ring roll forming equipment caused by the deformation of the upper forming roller shaft and the lower forming roller shaf...

Embodiment 3

[0038]This embodiment is an improved embodiment based on the first embodiment. In the rim ring rolling forming equipment, the output shaft of the first motor is connected to a transmission shaft through a third universal joint, and the transmission The shaft is connected to the upper forming roller shaft through the fourth universal joint, and the transmission shaft includes a telescopic sleeve for adjusting the length of the transmission shaft. When the upper forming roller 2 moves upward, the telescopic sleeve Elongation increases the length of the transmission shaft and maintains the power connection between the upper forming roller 2 and the output shaft of the first motor.

[0039] The rim ring rolling forming equipment further includes a fourth motor, the output shaft of the fourth motor is respectively connected to the upper forming roll and the lower forming roll through a transmission device.

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Abstract

The invention discloses a ring rolling forming device for a rim. The ring rolling forming device for the rim comprises a machine frame, an upper forming roller, a lower forming roller, a first power system providing power for the upper forming roller, a second power system providing power for the lower forming roller, a fixed lower forming roller shaft support and a movable lower forming roller shaft support. The invention further discloses a ring rolling forming method for the rim. The ring rolling forming method for the rim mainly comprises the steps of manufacturing of a blank, preheating, feeding, forming and discharging. According to the ring rolling forming device and method for the rim, the machining method that the blank is driven to rotate through rotation of the upper roller and the lower roller, and pressure is exerted on the blank is adopted, the pressure is exerted during rotation in the machining process, so that the pressure requirement on equipment is greatly lowered, the blank is made to achieve dynamic recrystallization in the machining process, an as-cast structure in the blank structure is fully fined and uniform, the center of gravity of the formed rim is located at the geometric center of the rim, and the rim is high in roundness and strength, small in thickness and high in chemical property.

Description

technical field [0001] The invention relates to the technical field of wheel rim processing, in particular to a wheel rim ring rolling forming equipment and method. Background technique [0002] The wheel hub is an important safety component in the vehicle structure, and its various performances directly affect the safety performance of the vehicle. At present, the rim structure consists of integral type, two-piece type, multi-piece type and so on. For the two-piece type and multi-piece type, the production methods of the rim part are: the plate is welded into a cylinder and then rolled to form; forging forming; forging-spinning forming; casting forming, etc. [0003] After the plate is welded into a cylinder, there is a weld seam in roll forming, which affects the center of gravity of the rim. For forging and forming rims, there are problems such as high forming pressure, complex mold design, and easy occurrence of folded interlayers. For casting molding, there are probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21H1/06B23P15/00
CPCB21H1/06B23P15/00
Inventor 吕天保王彤
Owner 吕天保
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