Multi-head linear motion mechanism for laser drilling

Abstract

The invention discloses a multi-head linear motion mechanism for laser drilling. The multi-head linear motion mechanism comprises a base table, guide rails arranged on the base table, a rack arrangedon the base table and parallel to the guide rails, multiple first photoelectric induction switches and multiple movable workbenches. The first photoelectric induction switches are arranged on the basetable, and at least two of the first photoelectric induction switches are arranged at the head ends and the tail ends of the guide rails correspondingly. Each movable workbench comprises a workbenchbody, a motor, a gear in transmission connection with the motor and a first induction piece, the first induction pieces, the motors and the gears are all arranged on the workbench bodies, the multiplegears are all engaged with the rack, the motors drive the gears to rotate so as to drive the workbenches to achieve displacement on the guide rails, and the first induction pieces are used for cooperating with the first photoelectric induction switch to obtain position information of the movable workbenches. According to the multi-head linear motion mechanism for laser drilling, the number of themovable workbenches can be conveniently increased and decreased according to use requirements, and the multi-head linear motion mechanism has the advantages of being simple in structure, long in service life and convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of laser glass drilling, in particular to a multi-head linear motion mechanism for laser drilling. Background technique [0002] At present, glass drilling is mainly traditional mechanical drilling, and compared with traditional mechanical drilling, laser drilling has obvious advantages. The laser-induced separation process produces high-strength, naturally tempered edges without micro-cracks, which can avoid cracks and breakage, improve the quality of drilling and reduce the rate of defective products, and laser drilling is faster and more efficient. [0003] In the process of glass laser drilling, in order to process three or more holes on a straight line (length 0.6-3m), a multi-head linear motion mechanism is required to carry a corresponding number of punching tools, distributed motion to the Drilling is performed at positions corresponding to the sequence. [0004] At present, the products of multi-a...

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Problems solved by technology

[0005] If the multi-axis linear motion products use screw modules, there are the following problems: 1. Multiple sets of screw modules need to be arranged in parallel to achieve multi-axis linear motion. The installation process is complicated and requires a large installation space. to limit

3. The single set of screw is supported at both ends and the middle part is suspended in the air. When the screw module rotates at high speed through the servo motor, vibration and noise will be generated, and the centrifugal vibration force generated by too long screw will cause the coupling to loosen easily and die The group accuracy is low and the service life is reduced

[0006] If the multi-axis linear motion products use linear motors, there are the following problems: 1. The power consumption of linear motors is large, especially when performing high-load and high-acceleration motions, the instantaneous current will bring a heavy load to the power supply system

2. The dynamic rigidity of the linear motor is extremely low, and it is easy to cause other parts to resonate during high-speed motion

3. The linear motor generates a lot of heat. The motor mover fixed at the bottom of the workbench is a high-heating component. The installation position is not conducive to natural heat dissipation, which has a great impact on the temperature of the equipment

4. The structure is complex, the process requirements are high, and the manufacturing cost is high

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