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Axial locking device applied to processing course of engine crankshaft

A crankshaft processing and axial locking technology, applied in the direction of clamping device, positioning device, metal processing equipment, etc., can solve the problems of axial movement, increased production cost, large dynamic balance value, etc. The effect of fluctuating, reducing scrap rate and improving overall quality

Inactive Publication Date: 2015-11-11
四川省宜宾普什汽车零部件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the crankshaft machining process, whether it is a fully automatic balancing machine tool or a manual balancing machine tool, due to the lack of effective locking and fixing means, the crankshaft with a lighter weight is prone to axial movement during high-speed rotating machining (probability At about 20%), the movement directly leads to a large value of dynamic balance, so that the machining accuracy and coincidence cannot meet the requirements, the scrap rate is high, and the production cost increases

Method used

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  • Axial locking device applied to processing course of engine crankshaft

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Embodiment 1

[0016] Such as figure 1 As shown, 1 is the base, 2 is the support frame, 3 is the bracket, 4 is the bearing I, 5 is the tailstock, 6 is the telescopic assembly, 7 is the bearing II, 8 is the cylinder (hydraulic or pneumatic), 9 is the crankshaft, The 10th is a fan plate, the 11th is a push rod, and the 12th is a journal.

[0017] The processing method of the original equipment: put the two ends of the crankshaft 9 on the support frame, start the machine button, the claws clamp the crankshaft 9, and drive the crankshaft 9 to rotate. move. The automatic sensing device of the machine tool automatically calculates the unbalanced value, and the external tool drills the fan plate 10 to achieve the purpose of removing the weight of the fan plate 10, so as to ensure that the unbalanced value of the crankshaft is within the specified range.

[0018] During the above-mentioned processing, due to the limited solid capacity of the top, the crankshaft 9 is prone to movement.

[0019] T...

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Abstract

The invention relates to an axial locking device applied to the processing course of an engine crankshaft. The axial locking device comprises a base and a support frame. The axial locking device is characterized in that a middle locking assembly and a tail locking assembly are mounted on the base, wherein the middle locking assembly comprises a bracket, and a bearing I is mounted at the upper part of the bracket; the tail locking assembly comprises a tail stock, an elastic component is connected to the upper end of the tail stock, and a bearing II is mounted at the front end of the elastic component. The axial locking device disclosed by the invention has the benefits that through the interaction of the middle locking assembly and the tail locking assembly, the axial shift of a workpiece generated in the process of rotation can be effectively avoided, the dynamic balance precision of the crankshaft is promoted to reach the precision required by engine manufacturers, and the coincidence of the processing precision of a fully automatic balancing machine and the processing precision of a manual balancing machine is ensured to be as high as 94%.

Description

technical field [0001] The invention relates to an axial locking device, which is particularly suitable for axial locking and positioning in the process of machining crankshafts of automobile engines. Background technique [0002] Among the 36 processing procedures of the crankshaft of the automobile engine, the dynamic balance processing of the crankshaft is listed as a key processing procedure. The poor precision of the dynamic balance processing will cause the vehicle to vibrate too much during driving, resulting in poor driving stability, and even cause the crankshaft to break, which brings safety. ACCIDENT. Crankshaft dynamic balancing machine tools are divided into automatic balancing machine tools and manual balancing machine tools. Manufacturers choose different types of machine tools according to their production efficiency and processing product accuracy. The main method of machine tool processing is to drill holes on the crankshaft fan plate as needed to meet the...

Claims

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Application Information

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IPC IPC(8): B23Q3/08
CPCB23Q3/082B23Q3/062B23Q2703/04B23Q2703/105
Inventor 张强谢金龙郭兵周毅涛蔡世强
Owner 四川省宜宾普什汽车零部件有限公司
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