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Cooling device

A cooling device and refrigerant technology, applied in auxiliary devices, cooling electrodes, cooling/ventilation/heating transformation, etc., can solve the problems of reduced welding efficiency and reduced electrode head welding performance, and achieve the effect of suppressing the number of parts

Pending Publication Date: 2021-07-23
KAWASAKI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the electrode tip is melted, the welding performance of the electrode tip decreases, and the welding efficiency decreases.

Method used

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Examples

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example 2

[0053] Modification 2 of the cooling device 7 (7A) according to the above-mentioned embodiment will be described. Figure 6 It is a figure which shows the structure of the cooling device 7 (7C) which concerns on the modification 2. This cooling device 7 ( 7C) is a cooling device in which the second heat exchange unit 72 exchanges heat with the first heat transfer channel 70 ( 70B) of the cooling device 7 ( 7B) according to Modification 1 described above. A part between the parts 71 is formed as a heat sink 75 (75A). In other words, the refrigerant circulation channel 70 ( 70C) has the first radiator 75 ( 75A) on the downstream side of the second heat exchange portion 72 and on the upstream side of the first heat exchange portion 71 , and on the upstream side of the first heat exchange portion 71 . The downstream side of the pump 76 and the upstream side of the pump 76 have the second radiator 75 (75B).

[0054] Figure 7 It is a schematic configuration diagram of a robot 1 ...

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Abstract

This cooling device comprises a refrigerant circulation channel, and a pump that pressure feeds the refrigerant in the refrigerant circulation channel. An articulated robot heat generating unit includes an end effector heat generating unit, and a portion of the refrigerant circulation channel is formed as a first heat exchanger to exchange heat between the end effector heat generating unit and the refrigerant, and another portion of the refrigerant circulation channel is formed as a radiator. The radiator is a passive radiator and is mounted in an exposed state to an arm surface in a portion that moves in space by way of the arm joint being driven.

Description

technical field [0001] The present invention relates to a cooling device for cooling a heat generating part of an articulated robot. Background technique [0002] Conventionally, there is known a spot welding robot that automatically performs spot welding. A spot welding robot is generally a multi-joint robot in which a spot welding torch is attached to the front end of a multi-joint arm. The electrode tip of the spot welding gun becomes high temperature instantly. When the electrode tip is melted, the welding performance of the electrode tip decreases, and thus the welding efficiency decreases. Therefore, the spot welding robot includes a cooling device for cooling the spot welding gun including the electrode tip. [0003] For example, the spot welding robot described in Patent Document 1 includes a cooling device for cooling a spot welding gun in a robot main body (that is, a multi-joint arm). This cooling device includes a water storage tank, a water supply hose for s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J19/00H05K7/20B23K11/11B23K11/36
CPCB23K11/36B23K11/3054B23K11/314B23K11/315B25J19/0054B23K37/003B23K11/11H05K7/20
Inventor 贵田恭旭成相一志福原一美
Owner KAWASAKI HEAVY IND LTD