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Wire saw device, and processing method and processing device for workpiece

a technology of wire sawing and workpiece, which is applied in the direction of metal sawing devices, work holders, manufacturing tools, etc., can solve the problems of reducing processing accuracy, reducing processing efficiency, and reducing processing efficiency, etc., to achieve convenient replacement, large installation space, and excellent maintainability

Inactive Publication Date: 2018-11-15
TAKATORI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The wire saw device in this patent allows for easy replacement of the robot arm and wire saw unit, making it ideal for different workpiece shapes and sizes. The wire saw unit can be detached from the robot arm for fine work at a distance closer to the operator, and the wire can be easily selected and replaced. The wire saw unit is also designed to move freely by the robot arm, allowing for various processing modes such as cutting the workpiece into a curved surface shape. The dry method of removing cutting waste using air blown out from a nozzle reduces costs and environmental waste, and it also alleviates frictional heat and improves cooling while suppressing decreased cutting processing accuracy. A fan rotationally driven with the pulleys improves the air flow effect, and pulley fans can be rotated without another drive source.

Problems solved by technology

This processing feed direction is a uniaxial direction, and thus cannot flexibly cope with various kinds of workpieces or various processing modes such as a curved surface shape.
Also, in the case of using a wire saw device, regardless of a type of the workpiece, how to deal with cutting waste generated during processing and heat generated by friction is an important problem.
In addition, processing accuracy is also reduced.

Method used

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  • Wire saw device, and processing method and processing device for workpiece
  • Wire saw device, and processing method and processing device for workpiece
  • Wire saw device, and processing method and processing device for workpiece

Examples

Experimental program
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Effect test

first embodiment

[0134]FIGS. 1 to 6 show a wire saw device of the present invention, and FIG. 1 is a partially broken overall view of this wire saw device 1.

[0135]The wire saw device 1 includes a wire saw unit 3 detachably connected thereto via a tool changer 7 connected to a tip end portion of a robot arm 2.

[0136]The wire saw unit 3 shown in FIGS. 2, 3, 4, and 5 is detachably attached to the robot arm 2 by engagement between a male portion 18 of the tool changer 7 (shown in FIG. 6) on the robot arm 2 side and a female portion 19 of the tool changer 7 on the wire saw unit 3 side via appropriate means such as a plunger (not shown). By operating an internal motor (not shown) of the robot arm 2, a rotary shaft 15 is driven and rotation of a rotatable body 12 is appropriately controlled by a drive control device (not shown), whereby the tool changer 7 can rotate. In accordance with movement of the rotatable body 12, the wire saw unit 3 can also rotate by 360 degrees via the tool changer 7. However, actu...

second embodiment

[0146]Next, the wire saw device shown in FIGS. 7 to 11 will be described. FIG. 7 is a partially broken overall view of the wire saw device 1 of this embodiment.

[0147]The main configurations of the robot arm 2 and the tool changer 7 of this embodiment are the same as those of the first embodiment, and therefore detailed description thereof will be omitted. Also in the wire saw unit 3, parts that perform the same actions as those of the first embodiment are denoted by the same reference signs, and description thereof will be omitted.

[0148]As shown in FIG. 8, air jetting nozzles 10a and air suction nozzles 10b at both ends of the wire saw unit 3 are provided as pairs adjacent to each other. The air jetting nozzles 10a blow air onto the cut surface of the workpiece to blow off and remove cutting waste. The air suction nozzles 10b suck air to collect the cutting waste. In order to prevent deviation of the range where air is jetted or sucked, for the both nozzles, it is desirable to provi...

third embodiment

[0153]Next, the wire saw device shown in FIGS. 12 to 17 will be described. FIG. 12 is a partially broken overall view of the wire saw device 1 of this embodiment.

[0154]The main configurations of the robot arm 2 and the tool changer 7 of this third embodiment are the same as those of the first embodiment and the second embodiment, and therefore detailed description thereof will be omitted. Also in the wire saw unit 3, parts that perform the same actions as those of the first embodiment and the second embodiment are denoted by the same reference signs, and description thereof will be omitted.

[0155]In FIG. 13, actions of the guide pulleys 4a and 4b, the rotary pulleys 5, the wire 8, and the nozzles 10 are the same as those of the guide pulleys 4a and 4b, the rotary pulleys 5, the wire 8, and the nozzles 10 shown in FIG. 2 of the first embodiment, and thus detailed description thereof will be omitted.

[0156]In this embodiment, a load cell 23 is provided on a rotary shaft 24 of the guide ...

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Abstract

In order to respond flexibly to various processing modes, such as forming curved surface shapes, when cutting a workpiece using a wire saw, this wire saw device (1) is provided with: a single robot arm (2) that is capable of moving freely by means of multi-axis control; a wire saw unit (3) that is detachably connected to the robot arm (2) via a tool changer (7); a wire (8) that spans a plurality of pulleys supported within the wire saw unit (3); and a workpiece cutting zone (20) that is established between the pulleys. The workpiece is cut to a prescribed shape by moving the robot arm (2) in a preset direction while running the wire (8) of the wire saw unit (3) and pressing the wire (8) against the supported workpiece.

Description

TECHNICAL FIELD[0001]The present invention relates to a wire saw device for cutting a workpiece by using a multi joint multi-axis controllable robot arm and a processing method and a processing device for a workpiece.BACKGROUND ART[0002]Conventionally, a wire saw device of a fixed abrasive type that cuts a workpiece by pressing the workpiece such as silicon or sapphire onto a wire row formed by winding a wire between a plurality of groove rollers and includes a fixed abrasive wire in which abrasive grains such as diamond is fixed, on a core wire formed of a steel wire, by electrodeposition, resin, or the like is known.[0003]In processing by a conventional wire saw device, a workpiece is processed and fed to a traveling wire by a processing feed device. This processing feed direction is a uniaxial direction, and thus cannot flexibly cope with various kinds of workpieces or various processing modes such as a curved surface shape.[0004]Also, in the case of using a wire saw device, rega...

Claims

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Application Information

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IPC IPC(8): B25J11/00B23Q3/08B24B27/06B23Q3/18B24B41/06B24B55/06B25J15/04B28D5/04
CPCB25J11/0055B23Q3/08B24B27/0633B23Q3/18B24B41/06B24B55/06B25J15/0408B28D5/045B24B27/00B24B27/06B25J15/04B24B27/0038B24B41/068B24B27/065B25B11/005B24B55/02B23D57/0007B28D5/0076B28D5/0064B28D5/0094B28D5/04
Inventor MASUDA, MAKOTOKITA, HIROYUKIMORITA, MASAHIROKOMEDA, TATSUYAYOSHIMURA, TAKAAKIYOSHIDA, HISASHITAKEDA, ATSUNORIINOUE, YUICHI
Owner TAKATORI