Steering knuckle master pin hole flexible positioning machining system.

Abstract

The invention discloses a steering knuckle master pin hole flexible positioning machining system and relates to the technical field of automobile manufacturing. A worktable is provided with a quick-changing clamping fixture with a bottom surface provided with a key groove, and the quick-changing clamping fixture is fixed onto the worktable of a boring machine through keys and bolts; a workpiece is clamped on the quick-changing clamping fixture; a tool is connected with a boring machine spindle through a taper shank, the boring machine spindle drives the tool to rotate under the control of the numerical control procedure of a spindle motor, and a feed motor drives the tool to move transversely under the control of the numerical control procedure; the boring machine is provided with a boring head tool changer controlled by a tool-changing system; a cooling system is arranged inside the boring machine spindle; the spindle motor, the boring head tool changer, the tool-changing system, boring machine spindle, the boring tool, the workpiece, the worktable, the quick-changing clamping fixture and the feed motor are arranged inside a protective device in a closed mode. According to the steering knuckle master pin hole flexible positioning machining system, numerical control tool changing technology and quick-changing positioning technology are applied to simultaneous machining of different sizes and shapes of master pin holes or stepped master pin holes of steering knuckles of different varieties, working procedure flexibility and production efficiency of a production line are effectively improved and production line investment is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a flexible processing system for manufacturing multi-variety steering knuckle kingpin holes by using numerical control technology to process steering knuckle with stepped kingpin holes, and using a composite device for precise positioning and quick replacement of fixtures . Background technique [0002] At present, the finishing of the kingpin hole of the axle steering knuckle is generally processed by a special boring machine or a horizontal machining center. Generally, it is positioned by a jig with the same steering inclination angle as the kingpin hole of the steering knuckle. The main defects are as follows: [0003] 1. The special boring machine can only process through holes and cannot change tools. Many kingpin holes with steps cannot be processed, and the process flexibility is poor; [0004] 2. When using a horizontal machining center, you can only pro...

AI Technical Summary

Problems solved by technology

[0003] 1. The special boring machine can only process through holes and cannot change tools. Many kingpin holes with steps cannot be processed, and the process flexibility is poor;

[0004] 2. When using a horizontal machining center, you can only process the kingpin hole on one side first, and then process the kingpin hole on the other side. The processing time is long and it is easy to form a bottleneck process;

[0005] 3. The steering inclination angle of the kingpin hole of each variety of steering knuckle is different. When the production line is switched, the corresponding fixture needs to be replaced. Because the used fixture is heavy in weight, the replacement is complicated, and the adjustment time for line change is long, which affects the production capacity of the production line and increases reduce the labor intensity of the operator

Images