Single-row Z-direction positioning fixture with leftward-rightward rotational fine adjustment function

Abstract

The invention discloses a single-row Z-direction positioning fixture with a leftward-rightward rotational fine adjustment function. The positioning fixture comprises a clamping table and a plurality of Z-direction positioning devices, wherein a clamping groove is formed transversely in the working surface of the clamping table; long workpieces are placed on both sides along the inner transverse direction of the clamping groove respectively; the plurality of Z-direction positioning devices are vertically arranged in the clamping groove at intervals along the transverse middle line position of the clamping groove; the Z-direction positioning devices comprise Z-direction driving mechanisms, Z-direction connecting shafts, revolving shaft connecting seats, pressure plates and revolving shafts; the revolving shafts are fixedly connected with the pressure plates through nuts in order that the pressure plates rotate along with the rotation of the revolving shafts and gaps are reserved between the pressure plates and the upper surface of a connecting table; the gaps are the amplitudes of leftward-rightward rotation fine adjustment of the pressure plates. By adopting the single-row Z-direction positioning fixture with leftward-rightward rotational fine adjustment function provided by the invention, a plurality of workpieces can be clamped at one step, influence of the size deviations of workpiece batches is avoided, a good clamping effect is achieved, and the machining accuracy of each workpiece is ensured.

Description

technical field [0001] The invention relates to the field of machining fixtures, in particular to a single-row Z-direction positioning fixture that can be rotated left and right for fine adjustment. Background technique [0002] In the process of workpiece processing, it is necessary to use fixtures to clamp and position the workpiece. In small batch production and processing, the fixture structure is generally required to save costs. A workpiece is clamped and positioned, and the work efficiency is low. [0003] The existing down-pressing fixture for clamping and positioning multiple workpieces is controlled by a cylinder, and the workpieces on both sides are positioned and clamped in the slot. The workpieces on both sides must be of the same model and specification, but the workpieces There will inevitably be a certain size deviation between them. If the size error of the workpiece on both sides is greater than 1mm, the existing press-down fixture can only clamp and posit...

AI Technical Summary

Problems solved by technology

[0002] In the process of workpiece processing, it is necessary to use fixtures to clamp and position the workpiece. In small batch production and processing, the fixture structure is generally required to save costs. The workpiece is clamped and positioned, and the work efficiency is low.

[0003] The existing down-pressing fixture for clamping and positioning multiple workpieces is controlled by a cylinder, and the workpieces on both sides are positioned and clamped in the slot. The workpieces on both sides must be of the same model and specification, but the workpieces There will inevitably be a certain size deviation between them. If the size error of the workpiece on both sides is greater than 1mm, the existing press-down fixture can only clamp and position the workpiece with a large size, while the workpiece with a small size on the other side cannot be clamped. , will lead to low machining accuracy for small workpieces, and the greater the error, the lower the machining accuracy

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