Automobile hub machining positioning system and intelligent cleaning and precision machining production line

Abstract

The invention discloses an automobile hub machining positioning system and an intelligent cleaning and precision machining production line. The automobile hub machining positioning system comprises an upper-layer mounting plate and a lower-layer mounting plate which are vertically connected together and spaced by a set distance. At least three U-shaped blocks are fixed on the top surface of the upper-layer mounting plate in the circumferential direction of the upper-layer mounting plate, an L-shaped bracket is mounted between every two adjacent U-shaped blocks, a ball head with a screw rod is mounted on each L-shaped bracket, and the L-shaped brackets are driven by a first driving device to move in the radial direction of the upper-layer mounting plate; and a slidable chuck is installed in each U-shaped block, the bottom of each chuck is connected with an ejector rod assembly, and the ejector rod assemblies are driven by a second driving device to drive the chucks to move in the radial direction of the upper-layer mounting plate. Three wedge blocks are fixed on the top surface of the lower-layer mounting plate in the circumferential direction of the lower-layer mounting plate, and the three wedge blocks are driven by a third driving device to move in the radial direction of the lower-layer mounting plate; and the inclined faces of the wedge blocks are matched with the bottoms of the ejector rod assemblies.

Description

Technical field [0001] The present invention relates to the technical field of machining equipment, and a vehicle hub positioning system and a car hub intelligent clean and precision processing line including the positioning system are designed. Background technique [0002] At present, the wheel positioning error in the field of automotive hub machine is large, which seriously affects the machining accuracy of the hub, and cannot accommodate the clamping of a variety of hub size, resulting in extremely low degree of flexibility in the hub machining unit; for example: inventive CN201711405456.6 An automotive hub clamp is disclosed, and the hub rod is clamped by a horizontal stretch lever, and the hub rib is clamped, and the rotation elevation of the hub platform is adapted to different hub size, however, the rotational lift of the control hub platform adapts to different sizes. The hub size is likely to cause a larger positioning accuracy error, and the clamping groove on the cla...

AI Technical Summary

Problems solved by technology

[0002] At present, the hub positioning error in the field of automobile hub machining is relatively large, which seriously affects the machining accuracy of the hub, and cannot adapt to the clamping of various hub sizes, resulting in extremely low flexibility of the hub machining unit; for example: in the invention CN201711405456.6 Disclosed is an automobile hub clamp, which drives the clamping parts to clamp the hub rim through a horizontal telescopic rod, and adapts to different hub sizes by controlling the rotation and elevation of the hub platform. However, controlling the rotation and elevation of the hub platform adapts to different sizes The size of the wheel hub is easy to cause a large positioning accuracy error, the clamping groove on the clamping piece is not adaptable, the thickness of the rim of the wheel hub is small, and the clamping force generated by the clamping piece on the hub is too concentrated, which is easy to deform the wheel hub or unreliable clamping

Another example: a hub fixture is disclosed in the utility model CN201720017875.1. This fixture needs to manually adjust the position of the pull arm according to the size of the hub, which cannot be automated. Only one pull claw can be adjusted manually at a time, and the three pull claws cannot be adjusted at the same time. Radial movement will cause a large positioning error

[0003] The processing of automobile wheels is limited by the flexibility of the wheel fixtures and other devices, so that one processing unit can only process one size of wheels. When processing wheels of different sizes, it is necessary to manually replace the fixtures and manually write the processing program. Fixtures and machining programs require downtime, which greatly affects machining efficiency

[0004] At the same time, the traditional pouring lubrication method is still used in the current automobile wheel hub production line, resulting in a large amount of use and waste of cutting fluid, which not only causes high processing costs, but also seriously affects the health of workers. Prolonged contact with cutting fluid can easily cause physical diseases. The extensive use of liquid also seriously pollutes the environment.

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