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Machine tool having protective cover

A technology for protective covers, machine tools, applied in the direction of manufacturing tools, maintenance and safety accessories, metal processing machine parts, etc., can solve the method of grounding a moving door without mentioning, without describing the method of grounding a moving door, no Describe issues such as the method of electrical connection between the door and the fixed cover

Inactive Publication Date: 2015-02-25
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In Japanese Patent Laid-Open No. 2007-331050, regarding the cover fixed to the frame of the machine, it is described that the cover is prevented from being electrified and grounded reliably by using a conductive material for the resin component supporting the cover, but it does not mention How to get grounding on the moving door
[0004] In addition, in Japanese Patent Application Laid-Open No. 09-174375, it is described that an expandable and contractable shielding member is provided between the fixed cover and the door, and the shielding member is expanded by supplying a fluid thereinto, thereby reliably closing the gap between the fixed cover and the door. shielded, but does not describe the method of keeping the door in contact with the fixed cover to obtain an electrical connection
[0005] Furthermore, in Japanese Patent Application Laid-Open No. 2000-135629, the use of releasing static electricity accumulated in a fixed resin cover through metal brushes is described, but there is no moving door in the corresponding part, and there is still no description about the moving door ways to get grounded

Method used

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  • Machine tool having protective cover
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0038] FIG. 8 is a diagram for explaining Embodiment 1. FIG.

[0039] In Embodiment 1, the leaf spring 3 is used as the conductive member. Such as Figure 8AAs shown in FIG. 1 , the leaf spring 3 as a conductive member is fixed to the splash guard main body 1 using fixing bolts 4 . Next, the leaf spring 3 comes into contact with the side surface of the door 2 when the door 2 is assembled in a predetermined position. The leaf spring 3 is a spring that expands outward. The portion of the door 2 that the leaf spring 3 contacts is made of a metal surface that is not painted. Through the above operations, the door 2 is in a state of being grounded to the splash guard main body 1 . in such as Figure 8B Even when the leaf spring 3 is fixed to the door 2 using the fixing bolts 4 as shown, the part of the splash guard main body 1 that contacts the leaf spring 3 is a metal surface that is not painted. In addition, the contact part of the leaf spring 3 may be a machined surface or...

Embodiment approach 2

[0043] FIG. 9 is a diagram for explaining Embodiment 2. FIG.

[0044] Regarding the method described above, Embodiment 2 is a mode in which the coil spring 5 is used instead of the leaf spring 3 of Embodiment 1 as the conductive member. Figure 9A An embodiment in which the coil spring 5 is fixed on the splash guard main body 1 is shown. Figure 9B An embodiment in which the coil spring 5 is fixed to the door 2 is shown.

[0045] In addition, the coil spring supporting member 7 is as Figure 9A As shown, the parts supporting the coil spring 5 in the direction of pressing the side surface of the splash guard main body 1, or as Figure 9B As shown, the member supports the coil spring 5 in the direction of pressing the side surface of the door 2 . By using the coil spring supporting member 7, it is possible to prevent the coil spring 5 from bending, and to stably contact the coil spring 5 with the facing member. In addition, the coil spring 5 is provided to be replaceable, an...

Embodiment approach 3

[0047] FIG. 10 is a diagram for explaining Embodiment 3. FIG. Embodiment 3 is an aspect in which the combination of the coil spring 5 and the slider 6 is used instead of the plate spring 3 of Embodiment 1. As shown in FIG. Figure 10A The embodiment in which the coil spring 5 and the slider 6 are fixed on the main body 1 of the splash guard is illustrated. Figure 10B An embodiment in which the coil spring 5 and the slider 6 are fixed on the door 2 is illustrated.

[0048] In addition, the coil spring support member 7 is as Figure 9A As shown, the parts supporting the coil spring 5 in the direction of pressing the side surface of the splash guard main body 1, or as Figure 9B As shown, the member supports the coil spring 5 in the direction of pressing the side surface of the door 2 . By using the coil spring supporting member 7, the coil spring 5 can be prevented from bending, and the coil spring 5 or the slider 6 can be brought into stable contact with the facing member. ...

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Abstract

A leaf spring, being a conductive member, fixed to a splash guard body with a fixing bolt, is in contact with a side surface of a door assembled to a predetermined position. The leaf spring is a spring that expands outwardly. The leaf spring is in contact with an uncoated metallic surface of the door.

Description

technical field [0001] The invention relates to a machine tool with a protective cover. Background technique [0002] When processing workpieces, the method of covering the processing area with a splash guard is generally used to prevent the chips generated and the cutting fluid supplied to the workpiece from splashing. In addition, as a method of preventing electrification of a cover covering a machine, a method of grounding the cover may be employed. As relevant prior art documents, there are, for example, JP-A-2007-331050, JP-A-09-174375, and JP-A-2000-135629. [0003] In Japanese Patent Laid-Open No. 2007-331050, regarding the cover fixed to the frame of the machine, it is described that the cover is prevented from being electrified and grounded reliably by using a conductive material for the resin component supporting the cover, but it does not mention About the method of taking the ground on the moving door. [0004] In addition, in Japanese Patent Application Laid-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/08B23Q11/00
CPCB23Q11/0825B23Q11/0891Y10T409/30392
Inventor 佐藤直树
Owner FANUC LTD
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