Two-way automatic centering fixture

Abstract

The invention discloses a two-way automatic centering fixture, and relates to the field of mechanical machining, in particular to the two-way automatic centering fixture. The two-way automatic centering fixture comprises two clamping vice jaws arranged on a workbench and is characterized in that one far end of the two clamping vice jaws is connected with a clamping wheel of a machine tool, and the other far end of the two clamping vice jaws is connected with the wall of the machine tool through a tension spring; two deflector rods are arranged at the two clamping vice jaws correspondingly, one end of each deflector rod is connected with the corresponding clamping vice jaw through a pin shaft, and the other end of each deflector rod is connected with a corresponding gear; the deflector rods can drive the gears to rotate, and the two gears are engaged with each other. According to the two-way automatic centering fixture, the structure is simple, the requirement for machining precision of the fixture is not high, and action is flexible and reliable; an existing power source of the machine tool is utilized, the main structure of the machine tool is not influenced, the manufacturing period is shortened, and the cost is low.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a bidirectional self-centering fixture. Background technique [0002] There are two kinds of parts of the same type on a certain automobile equipment, the production batch is relatively large, and the structure is shown in Figure 1. To mill out a chute with a width of 8mm on two different sections, the chute requires a symmetry tolerance of 0.01mm. If this kind of part is milled on two sides and then the chute is processed on the automatic special milling machine, one side of the workpiece is positioned, and the jaw is moved and clamped on one side, the symmetry of the chute will be lower due to the large error of the width of the part at 28mm. Failure to meet drawing requirements. In order to meet the requirements of symmetry, the processing technology was revised, and the precision of the width dimension of 28mm was increased to level 8, which not only greatly increased t...

AI Technical Summary

Problems solved by technology

In order to meet the requirements of symmetry, the processing technology was revised, and the precision of the width dimension of 28mm was increased to level 8, which not only greatly increased the processing cost, but also the pass rate was only 80%. It is necessary to further improve the process accuracy of the width dimension of 28mm to ensure The symmetry tolerance of the chute meets the design requirements, but the processing cost is too high, so it is not allowed

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