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CN-117444256-B - Centering method

CN117444256BCN 117444256 BCN117444256 BCN 117444256BCN-117444256-B

Abstract

The application provides a centering method which comprises the steps of establishing a coordinate system by taking a rotation center of an equipment platform as an origin, aligning a reference surface of a part far away from the direction of the equipment platform to be parallel to the equipment platform, selecting a first point on a first reference surface of a first body of a middle-open part, which is perpendicular to the equipment platform, driving the middle-open part to rotate by the same angle on the same reference surface along the two sides of the first point in the Z-axis direction of the equipment platform by taking the first point as a starting point so as to obtain a second point and a third point, and adjusting the position of the first point so that coordinate values of the second point and the third point on the coordinate system are the same. When the rotation center of the equipment platform and the center-opening part are misplaced in one direction, the centering operation of the rotation center of the equipment platform and the center of the center-opening part can be rapidly completed through the centering method, and compared with the conventional centering operation, the centering operation is higher in working efficiency, and the use experience of a user is improved.

Inventors

  • WANG LIANG
  • MENG YANLING
  • XU FENGYU

Assignees

  • 沈阳鼓风机集团核电泵业有限公司

Dates

Publication Date
20260505
Application Date
20231031

Claims (10)

  1. 1. The centering method is characterized by being applied to a vertical lathe for machining a middle-open part (2), wherein the vertical lathe comprises an equipment platform (1), the middle-open part (2) is arranged on the equipment platform (1), the equipment platform (1) is used for driving the middle-open part (2) to rotate, the middle-open part (2) comprises a first body (21) and a second body (22), a middle-open surface is formed between the first body (21) and the second body (22), and the centering method comprises the following steps: Machining a first reference surface (211) and a third reference surface A (23) on the first body (21) by taking the middle open surface as a clamping reference; processing a second reference surface (221) and a third reference surface B (24) on the second body (22) by taking the middle open surface as a clamping reference; establishing a coordinate system by taking the rotation center of the equipment platform (1) as an origin; Selecting a first point (3) on the first reference plane (211); The first point (3) is used as a starting point to drive the middle-open part (2) to rotate by the same angle along the two side directions of the first point (3) on the same datum plane at the same height in the Z-axis direction of the equipment platform (1) so as to obtain a second point (4) and a third point (5); -adjusting the position of the first point (3) so that the coordinate values of the second point (4) and the third point (5) on the coordinate system are the same; The first datum plane (211) is parallel to the middle opening surface of the middle opening part (2), the first datum plane (211) is arranged on one side, far away from the second body (22), of the first body (21), the second datum plane (221) is parallel to the middle opening surface of the middle opening part (2), the second datum plane (221) is arranged on one side, far away from the first body (21), of the second body (22), the third datum plane A (23) is perpendicular to the middle opening surface of the middle opening part (2), and the third datum plane B (24) is perpendicular to the middle opening surface of the middle opening part (2).
  2. 2. The centering method according to claim 1, characterized in that before the establishment of the coordinate system with the centre of rotation of the equipment platform (1) as origin, the centering method further comprises: the equipment platform (1) is driven to rotate, so that the third datum plane A (23) and the third datum plane B (24) are parallel to the equipment platform (1).
  3. 3. The centering method according to claim 2, characterized in that the third reference plane a (23) and the third reference plane B (24) are arranged perpendicular to the mid-open plane.
  4. 4. A centring method according to claim 3, characterized in that the first reference surface (211) and the second reference surface (221) are arranged parallel to the median plane, the first reference surface (211) and the second reference surface (221) being at the same distance from the median plane.
  5. 5. The centering method according to claim 4, characterized in that the length of the first reference surface (211) and the second reference surface (221) is greater than 50mm, and the width of the first reference surface (211) and the second reference surface (221) is greater than 20mm.
  6. 6. The centering method according to claim 1, characterized in that said adjusting the position of the first point (3) comprises: -adjusting the position of the first point (3) on the first reference plane (211); And/or And adjusting the position of the middle open part (2) on the coordinate system.
  7. 7. The centering method of claim 6, further comprising: And driving the equipment platform (1) to rotate 180 degrees by taking the position of the first point (3) as a reference, and selecting a fourth point (6) on the second reference surface (221).
  8. 8. The centering method of claim 7, further comprising: And driving the middle-open part (2) to rotate by the same angle along the two side directions of the fourth point (6) on the same datum plane at the same height in the Z-axis direction of the equipment platform (1) by taking the fourth point (6) as a starting point so as to obtain a fifth point (7) and a sixth point (8).
  9. 9. The centering method of claim 8, further comprising: -comparing the coordinate values of the fifth point (7) and the sixth point (8) on a coordinate system.
  10. 10. The centering method of claim 8, further comprising: and adjusting the position of the middle-open part (2) on the equipment platform (1) so that the coordinate values of the first point (3) and the fourth point (6) on the coordinate system are the same.

Description

Centering method Technical Field The application belongs to the technical field of a middle-open part machining method, and particularly relates to a centering method. Background In the processing and manufacturing process of the large middle-open part, as the middle-open part is provided with the handle flange on the shape, the centering difficulty between the middle-open part and the equipment platform is high, the centering precision is low, and the time and the labor are wasted. Conventional centering methods do not meet manufacturing requirements. Disclosure of Invention Therefore, the technical problem to be solved by the application is to provide a centering method which can improve the centering precision and centering speed of the middle-open type part. In order to solve the problems, the application provides a centering method applied to machining a middle-open part of a vertical lathe, wherein the vertical lathe comprises an equipment platform, the middle-open part is arranged on the equipment platform, the equipment platform is used for driving the middle-open part to rotate, the middle-open part comprises a first body and a second body, a middle-open surface is formed between the first body and the second body, and the centering method comprises the following steps: a first datum plane and a third datum plane A are processed on the first body by taking the middle open surface as a clamping datum; A second reference surface and a third reference surface B are processed on the second body by taking the middle open surface as a clamping reference; Establishing a coordinate system by taking the rotation center of the equipment platform as an origin; selecting a first point on the first reference surface; The first point is used as a starting point to drive the middle-open part to rotate by the same angle along the two sides of the first point on the same reference plane at the same height along the Z-axis direction of the equipment platform so as to obtain a second point and a third point; and adjusting the position of the first point so that the coordinate values of the second point and the third point on the coordinate system are the same. Optionally, before the coordinate system is established by taking the rotation center of the equipment platform as the origin, the centering method further includes: And driving the equipment platform to rotate so that the third reference surface A and the third reference surface B are parallel to the equipment platform. Optionally, the third reference plane a and the third reference plane B are perpendicular to the middle open plane. Optionally, the first reference surface and the second reference surface are parallel to the middle open surface, and the distance between the first reference surface and the second reference surface is the same. Optionally, the lengths of the first reference surface and the second reference surface are greater than 50mm, and the widths of the first reference surface and the second reference surface are greater than 20mm. Optionally, the adjusting the position of the first point includes: Adjusting the position of the first point on the first reference surface; And/or And adjusting the position of the middle-open part on the coordinate system. Optionally, the centering method further includes: and driving the equipment platform to rotate 180 degrees by taking the position of the first point as a reference, and selecting a fourth point on the second reference surface. Optionally, the centering method further includes: And driving the middle-open part to rotate by the same angle along the two sides of the fourth point on the same reference plane at the same height along the Z-axis direction of the equipment platform by taking the fourth point as a starting point so as to obtain a fifth point and a sixth point. Optionally, the adjusting the position of the fourth point includes: And comparing the coordinate values of the fifth point and the sixth point on a coordinate system to verify the correctness of the fourth point. Optionally, the centering method further includes: And adjusting the position of the middle-open part on the equipment platform so that the coordinate values of the first point and the fourth point on the coordinate system are the same. Advantageous effects According to the centering method provided by the embodiment of the invention, the equipment platform is rotated to drive the middle-opening part to rotate, the third datum plane is aligned, and the third datum plane is parallel to the equipment platform, namely, the middle-opening surface of the middle-opening part is perpendicular to the equipment platform, so that the rotation center line of the middle-opening part is ensured to be on the middle-opening surface. Then selecting a first point on a first reference surface, driving the middle-opening part to rotate by the same angle along different directions by taking the first point as a starting point to obtain