JPS6338963U

JPS6338963U -

Info

Publication number: JPS6338963U
Application number: JP13281686U
Authority: JP
Priority date: 1986-08-29
Filing date: 1986-08-29
Publication date: 1988-03-12
Anticipated expiration: 2001-08-29
Also published as: JPH0611758Y2

Description

[Brief explanation of the drawing]

第１図は本実施例にかかる要部を断面にして示
し、バルブの研削面を研削している状態の縦断側
面図であり、第２図はバルブの研削面を位置決め
している状態の縦断面図である。第３図はバルブ
の研削面を位置決めしている状態の拡大縦断面図
である。第４図は従来の位置決め装置を使用して
位置置決めしている状態の拡大縦断面図である。
第５図は第１測定子および第２測定子が接続され
ている回路図である。図中、１は工作物保持装置、１０はチヤツク、
１１は第１付勢部材、１１０は第１スプリング、
１１１はブツシユ、２は移送手段、２１移送アー
ム、２２は把持部、２２０はロツド、２３は第２
付勢部材、２３０は第２スプリング、２３１はブ
ツシユ、２４は基準部、２４０ａは加工基準面、
２４１は第３スプリング、２４２は筒部、Ｗはバ
ルブ本体（工作物）、Ｗ１２は研削面（被加工面
）を示す。 FIG. 1 shows the main parts of this embodiment in cross section, and is a vertical side view showing the grinding surface of the valve being ground, and FIG. 2 is a longitudinal sectional view showing the grinding surface of the valve being positioned. It is a front view. FIG. 3 is an enlarged longitudinal cross-sectional view showing the positioning of the grinding surface of the valve. FIG. 4 is an enlarged longitudinal cross-sectional view of a state in which positioning is performed using a conventional positioning device.
FIG. 5 is a circuit diagram in which the first measuring element and the second measuring element are connected. In the figure, 1 is a workpiece holding device, 10 is a chuck,
11 is a first biasing member, 110 is a first spring,
111 is a bush, 2 is a transfer means, 21 is a transfer arm, 22 is a gripping portion, 220 is a rod, and 23 is a second
A biasing member, 230 is a second spring, 231 is a bush, 24 is a reference portion, 240a is a processing reference surface,
241 is a third spring, 242 is a cylindrical portion, W is a valve body (workpiece), and W12 is a grinding surface (workpiece surface).

Claims

[Scope of claims for utility model registration] (1) A chuck for rotatably fixing a workpiece;
a workpiece holding device having a first biasing member that biases the workpiece fixed to the chuck in the axial direction with a first biasing force; a gripping portion that grips the gripping portion with the biasing member; a second biasing member that biases the gripping portion in a direction facing the first biasing member with a second biasing force that is weaker than the first biasing force; a transfer device that is configured to be able to move forward and backward, has a forward position as a fixed position, and has a reference part having a machining reference surface that comes into contact with the workpiece and its workpiece surface;
A workpiece positioning device comprising: (2) The reference part has a cylindrical shape, and the workpiece includes a cylindrical valve body having a central hole and a seating surface on the inner surface forming the central hole, and a shaft part fitted into the central hole of the valve body. and a head that is not fitted into the central hole and has an engaging surface on the outer circumferential surface of the shaft, and the first biasing member and the second biasing member are The seating surface of the valve body and the engagement surface of the needle are seated in close contact with each other by urging the valve body from opposite directions, and the seating surface of the valve body and the engagement surface of the needle are brought into contact with each other. In the seated state, the reference part covers the head of the valve body from the outside, and the processing reference surface of the reference part abuts the processed surface of the valve body, as claimed in claim 1 of the utility model. workpiece positioning device.