Numerical control machine tool split-type operating platform for installing linear motor

Abstract

The invention discloses a numerical control machine tool split-type operating platform for installing a linear motor. The numerical control machine tool split-type operating platform for installing the linear motor comprises a water-proof operating platform, an electrical machine coil mounting plate, a linear motor primary coil, a connecting plate, an operating platform locating pin, an electrical machine coil mounting plate locating pin and linear guide way slide blocks, wherein the four linear guide way slide blocks are arranged on a linear guide way of a saddle. The operating platform is arranged on the linear guide way slide blocks through four notches formed in side edges of the operating platform. The linear motor primary coil is fixedly connected on the bottom surface of the electrical machine coil mounting plate through screws. Dovetail grooves formed in side edges of the electrical machine coil mounting plate coincide with dovetail grooves of the operating platform. The numerical control machine tool split-type operating platform for installing the linear motor is reasonable in structure. The fact that cutting fluid leaks the underside of the operating platform to corrode the operating platform and main castings of the saddle is avoided.

Description

technical field [0001] The invention relates to a machine tool accessory, in particular to a workbench of a numerically controlled machine tool driven by a linear motor. Background technique [0002] Linear motor (linear motor) is a new type of high-performance power transmission device, which eliminates the intermediate link between the motor and the workbench, reduces the transmission chain of the machine tool to zero, and realizes "zero transmission". Compared with the traditional "rotary motor + ball screw" structure, the linear motor direct feed has a simpler structure, better responsiveness, and better stability. It is more and more widely used in the feed system of CNC machine tools. However, the linear motor feed system also has problems such as damage to the primary coil of the linear motor due to overload, leakage of cutting fluid, or other reasons. repair. [0003] In the feed system of the new vertical machining center, the literature "Finite Element Analysis o...

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Problems solved by technology

After the workbench has been used for a period of time, it is prone to problems such as water leakage of the workbench. The leakage of cutting fluid to the bottom of the workbench will easily cause corrosion of castings and damage to motor coils.

[0004] Another installation method is to provide threaded holes on the bottom surface of the workbench, and connect the primary coil of the motor to the bottom of the workbench through screws. The coil is directly installed on the bottom of the workbench. The problem is that the gap between the primary coil of the linear motor and the secondary magnetic plate is not easy to adjust, and it is difficult to disassemble and maintain; the patent "A Primary Installation Method for Linear Motor" (CN 101176975A) is to The primary coil is installed on the mounting plate on the bottom of the workbench, and then mounted to the bottom of the workbench with screws. The main idea is to adjust the gap between the primary and secondary of the linear motor by changing the adjustment gasket

This structure is relatively difficult to disassemble and maintain when the motor coil fails. It is necessary to remove the slide block and remove the workbench, which will destroy the adjusted geometric accuracy of the machine tool, and the maintenance cycle is long. Reassembly requires high technical requirements for users. Time-consuming and labor-intensive

[0005] The current form of the workbench of the linear motor feed machine tool has certain shortcomings, and a workbench structure with a light structure, waterproof and dustproof, and easy maintenance is needed

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