Grinder to eliminate tailing

Abstract

The invention discloses a plate polisher capable of eliminating trailing. Each upper polishing-brushing wheel and each lower polishing-brushing wheel of the plate polisher are provided with a longitudinal reciprocator; the longitudinal reciprocation mechanism comprises a bearing seat arranged at each of two ends of the upper polishing-brushing wheel or the lower polishing-brushing wheel, each bearing seat is fixed on one bearing fixing plate, the lower side of each bearing fixing plate is fixedly connected with one sliding seat, and each sliding seat is respectively connected with a longitudinally arranged sliding rail in a sliding manner; a reciprocation traction device is used for providing the longitudinal reciprocation traction force for the upper polishing-brushing wheel or the lower polishing-brushing wheel, and the reciprocation traction device is respectively connected with one tail end of the upper polishing-brushing wheel or the lower polishing-brushing wheel. By use of the plate polisher disclosed by the invention, the trailing at the work-piece hole side in the processing process can be eliminated, the polishing-brushing processing quality and the working efficiency are improved, the adaptability is strong, the work is stable and reliable, and the noise is small.

Description

technical field [0001] The invention relates to manufacturing and processing equipment, in particular to a grinding machine capable of eliminating tailing. Background technique [0002] In the circuit board production process, it is necessary to carry out surface treatment on the copper substrate of the circuit board. This requires "coarsening" work on the surface of the copper plate, which requires the use of a grinding machine (also known as "volcanic ash brushing machine" or "volcanic ash grinding machine" or "pumice grinding machine" or "pumice brushing machine") trigger" or "pumex" or "pumiflex") for operation. The grinding machine uses volcanic ash (also known as pumice powder) as the working medium. When the volcanic ash is mixed with water, it flows to the surface of the workpiece through the pressure pump, and the high-speed rotating brush wheel rubs the mixture of water and volcanic ash on the copper surface of the workpiece, so that the copper surface has an app...

AI Technical Summary

Problems solved by technology

[0004] 1. The workpiece is set between the upper grinding brush and the lower grinding brush, and the joint force between the lower surface of the workpiece and the lower grinding brush is far inferior to that between the upper surface of the workpiece and the upper grinding brush, resulting in uneven treatment of the lower surface of the workpiece and The lower surface is not processed as efficiently as the upper surface

[0005] 2. The automatic brushing device used to adjust the relative position of the upper and lower brushes is easy to wear after working for a period of time and cannot maintain an accurate relative position, resulting in a large difference in deformation between the upper and lower brushes , the joint force with the surface of the workpiece is not enough, it is difficult to maintain and reduce the reliability of work

[0006] 3. The synchronous pulleys on the upper grinding brush and the lower grinding brush bite the inner and outer teeth of the same synchronous belt at the same time, and the distance between the upper grinding brush and the lower grinding brush often changes, resulting in poor meshing of the synchronous belt and the synchronous wheel, resulting in a lot of noise

[0007] 4. When the rotating upper and lower grinding brushes are processing workpieces with holes, part of the grinding wires on the upper grinding brush or / and the lower grinding brush will extend into the holes. When the grinding wires move to the back of the holes At the edge of the hole, the contact force between the brush wheel and the copper surface behind the hole suddenly increases, and the phenomenon of "hole edge tailing" appears (visual inspection shows that the color of some areas behind the hole is relatively bright, like the tail of a comet), so that the processed workpiece Poor surface bonding, affecting processing quality

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