Title:
GRINDING METHOD AND GRINDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/061510
Kind Code:
A1
Abstract:
A grinding method, being used for grinding at least one intersecting line in a valve cavity. The grinding method comprises: obtaining coordinates of M first sampling points on one intersecting line in the at least one intersecting line; determining N grinding paths and a first grinding sequence of the intersecting line according to the coordinates of the M first sampling points; and grinding the intersecting line along the grinding path according to the first grinding sequence. The M first sampling points comprise a starting point and an end point of the intersecting line and M-2 first sampling points located between the starting point and the end point of the intersecting line. The grinding path comprises a grinding starting point, a grinding end point, and a grinding depth. A grinding starting point and a grinding end point of the current grinding path are located between a grinding starting point and a grinding end point of the previous grinding path. M is greater than or equal to 3, N is greater than or equal to 2, and M and N are integers.
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Inventors:
LIU XIAONA (CN)
LIU XUEJI (CN)
SUN YANJING (CN)
LIU HONG (CN)
SONG XINWEN (CN)
LIU XUEJI (CN)
SUN YANJING (CN)
LIU HONG (CN)
SONG XINWEN (CN)
Application Number:
PCT/CN2022/131150
Publication Date:
April 20, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (CN)
International Classes:
B24B9/10; B24B49/00; B24B51/00; B24B55/02; B24B55/06
Foreign References:
| CN113953915A | 2022-01-21 | |||
| CN210551273U | 2020-05-19 | |||
| CN113369552A | 2021-09-10 | |||
| CN108481093A | 2018-09-04 | |||
| CN102452042A | 2012-05-16 | |||
| JPH1173213A | 1999-03-16 | |||
| JPH06214633A | 1994-08-05 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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