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Flash evaluation device

A technology for evaluating devices and flashing, which is applied in the testing of measuring devices, instruments, and mechanical parts, and can solve problems such as inclusions in automatic pencil leads

Active Publication Date: 2014-09-03
JATCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the case of such a confirmation method, there is a possibility that a broken mechanical pencil lead becomes an inclusion

Method used

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  • Flash evaluation device
  • Flash evaluation device
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Examples

Experimental program
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Embodiment Construction

[0055] figure 1 (a) is a sectional view of the flash evaluation device 1, (b) is a front view, and (c) is a right side view.

[0056] like figure 1 As shown, the burr evaluation device 1 includes: a cylindrical main body 10 ; a shaft member 20 supported by the main body 10 and movable in the axial direction; and a ball plunger 30 that applies a predetermined force to the shaft member 20 .

[0057] The main body portion 10 is a cylindrical member including a reduced-diameter portion 11 on the front end side, a grip portion 12 adjacent to the reduced-diameter portion 11 , and a plunger mounting portion 13 adjacent to the grip portion 12 .

[0058] Inside the main body 10 , a through hole 14 axially penetrating the main body 10 is formed along an axis X (central axis X) passing through the center of the main body 10 .

[0059] figure 2 (a) is figure 1 A magnified view of region A in, figure 2 (b) is figure 1 A magnified view of region B in, figure 2 (c) is A-A sectional...

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PUM

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Abstract

A flash evaluation device evaluates the strength of the flash formed in the oil passage of an automatic transmission, making it easier to determine whether the flash is in danger of falling off. It is configured to include: a cylindrical main body (10); and a shaft member (20) that is supported by the main body (10) and can move in the axial direction, and has a contact point with the burr (T). One end side of the part (21) is located outside the main body part (10); a ball plug (30) exerts a prescribed force on the shaft member (20) to resist the automatic movement of the burr when the burr is pressed through the abutment part (21). The ball plug (30) is set in a direction that exerts a prescribed force on the shaft member (20) from the radial direction of the shaft member (20), and the shaft member (20) is set in such a way that when the reaction force is borne by the flash, the ball plug (30) is When the reaction force received is greater than the predetermined acting force and it moves in the direction away from the flash, the other end side located in the main body part (10) protrudes from the main body part (10).

Description

technical field [0001] The present invention relates to a flash evaluation device. Background technique [0002] A plurality of oil holes are arranged in the control valve body of the automatic transmission, and these oil holes are connected with each other to form an oil passage for oil circulation. [0003] When the oil hole is formed in the control valve body, so-called flash occurs at the intersection of the oil hole and the oil hole. Therefore, attempts have been made to remove the burrs generated at the intersections by high-pressure washing, brushes, and the burr cutting device disclosed in Patent Document 1, but it is difficult to completely remove all burrs. [0004] In the case of an automatic transmission, if the burrs cannot be removed and the burrs remaining in the oil passage come off, the detached burrs become foreign matter for control valves and the like, causing malfunctions of the automatic transmission. [0005] Therefore, it is checked whether the rema...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 关本博信铃木英己
Owner JATCO LTD