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Constant tension control system of multi-wire cutting machine

A multi-wire cutting machine and control system technology, applied in the direction of manufacturing tools, fine working devices, stone processing equipment, etc., can solve the problems of not being widely used in small and medium-sized enterprises, expensive prices, etc., to reduce intermediate errors and speed of response Fast and stable effect

Inactive Publication Date: 2014-08-13
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems caused by the above-mentioned traditional methods, both the market and the patent have been considered, and various constant tension control systems have been shown, such as the servo closed-loop control system, which solves such problems very well, but Due to the high price, it has not been widely used in small and medium-sized enterprises

Method used

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  • Constant tension control system of multi-wire cutting machine
  • Constant tension control system of multi-wire cutting machine
  • Constant tension control system of multi-wire cutting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see Figure 1~Figure 3 , the patent of the present invention includes a frame (2) - which acts as a support to fix all the parts, six wire rollers - plays the function of conveying the wire (1) - including 4 alignment rollers (3) A moving roller 1 (5) and a moving roller 2 (15), a connecting rod 1 (4), a spring 1 (6), a wire (7), a comparison module (8), a driver Module (9), a strain gauge (10), a strain gauge base (11), a spring 2 (12), a stepper motor shaft (13), a connecting rod 2 (14), a shaft 1 ( 30), a stepper motor (31) and a shaft 2 (32); it is characterized in that: the frame (2) is installed on the machine tool; 6 wire rollers (3, 5, 15) are fed Feeding side by side; the wire (1) passes around the first alignment roller (3), the moving roller 2 (15), the second and third alignment rollers (3), and the moving roller from the input end 1 (5) and the fourth alignment roller (3) to the output end; one end of the connecting rod 1 (4) is connected to the alignment...

Embodiment 2

[0028] see Figure 4~Figure 8 , this embodiment is basically the same as Embodiment 1, the special feature is that: the above-mentioned 6 wire rollers (3, 5, 15) can rotate around their own axes, and the moving wire roller 1 (5) can not only rotate around the axis 1 (30) Autorotation can also revolve around the fixed axis where the alignment roller (3) is located together with the connecting rod 1 (4); similarly, the moving line roller 2 (15) can not only rotate around the axis 2 (32), but also rotate with the connecting rod 2 (14) revolving around the stepper motor shaft (13) together; the moving line roller 1 (5) and the moving line roller 2 (15) are suspended, and the four alignment rollers (3) are all fixed to the frame body (2 ) above; connecting rod 1 (4) is in sheet shape, and connecting rod 2 (14) is in Y shape.

[0029]

[0030] The above-mentioned strain gauges (10) are pasted on the strain gauge base (11), wherein R2 and R3 are a group of horizontally attached to ...

Embodiment 3

[0035] see Figure 4~Figure 5 The principle of the fully differential bridge circuit is adopted. When the tension of the metal wire is large, the base of the strain gauge is elongated, the strain gauges R1 and R4 are elongated, and the strain gauges R2 and R3 are widened. The change is shown in the figure below Δ R 1 、 Δ R 2 、 Δ R 3 、 Δ R 4 is the change in resistance value of the corresponding strain gauge.

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Abstract

The invention relates to a constant tension control system of a multi-wire cutting machine. The constant tension control system of the multi-wire cutting machine comprises a rack, wire rollers, a connecting rod 1, a spring 1, wires, a comparison module, a driver module, a strain gauge, a strain gauge base, a spring 2, a stepping motor shaft, a connecting rod 2, a shaft 1, a stepping motor and a shaft 2, wherein the wire rollers comprise four fixed wire rollers, a moving wire roller 1 and a moving wire roller 2. The constant tension control system of the multi-wire cutting machine is low in chip cutting bow, low in warp, high in tarp, small in TTV (total thickness variation), low in inter-chip cutting loss, low in roughness, high in processed slice yield, high in production efficiency and high in return on investment; the surface damaged layer of a processed chip is shallow; the fluctuation amplitude of tension in a wiring process of the cutting machine can be effectively reduced, and the tension control is high in accuracy and easy to implement; the wire tension control is high in stability, and the failure rate of wire breakage is low in the wiring process; the tension on the wires of the cutting machine is changed by adjusting the output torque of a tension motor and can be conveniently adjusted.

Description

technical field [0001] The invention relates to a constant tension control system of a multi-wire cutting machine. The feed system of the worktable drives the workpiece to be cut to move upwards to contact the cutting wire, the wire roller reciprocates at high speed, and the metal wire drives the mortar to grind and cut the workpiece to be cut. Different from the traditional gravity hammer and hydraulic cylinder scheme, the closed-loop stepping motor control scheme is adopted, which can effectively reduce the fluctuation range of tension during the wire routing process of the cutting machine, and the tension control has high precision and is easy to implement. The wire tension control is stable, and the failure rate of wire breakage is low during the wire routing process. Adjust the output torque of the tension motor to change the tension on the cutting line, and the tension adjustment is convenient. Background technique [0002] With the development of modern industry, mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D5/04
Inventor 汪常洋刘坤施群王彪王延刚
Owner SHANGHAI UNIV