A Finishing Method for Parts with Large Tolerance

A technology of parts and tolerances, which is applied in the field of finishing of parts with large tolerances, can solve the problems of unstable clamping and low clamping efficiency, and achieve the effects of improving production efficiency, stable clamping and reducing cutting vibration

Active Publication Date: 2021-11-02
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Problems solved by technology

The original method is to use a machining center to perform individual finishing on each part. For each finishing, the parts must be centered with the help of multiple tools such as vise, end face positioning block and horizontal correction device. All need to be re-centered, the clamping efficiency is extremely low, and the clamping is extremely unstable, and there are human errors

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  • A Finishing Method for Parts with Large Tolerance

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Embodiment Construction

[0022] This part is the embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0023] A finishing method for large-tolerance parts, using a special elastic processing fixture, specifically includes the following steps:

[0024] Step 1. According to the size of the part to be processed, adjust the lateral deformation block A and the lateral deformation block B, so that the distance between two adjacent deformation blocks is less than 0.005-0.01 mm from the outer dimension of the part, and ensure that the clamping interference is not greater than 0.01 mm;

[0025] Step 2, using the machining center probe to measure and align the center between the lateral deformation block A and the lateral deformation block B;

[0026] Step 3, pressing the part to be processed between the lateral deformation block A and the lateral deformation block B, and compressing the axial direction of the workpiece through the axial...

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Abstract

The invention provides a finishing method for parts with a large tolerance, which uses a special elastic processing fixture, including: 1. According to the size of the part to be processed, adjust the lateral deformation block A and the lateral deformation block B, so that two adjacent deformation blocks The distance between them is less than 0.005-0.01mm of the outer dimension of the parts, ensuring that the clamping interference is not greater than 0.01mm; 2. Use the machining center probe to measure and find the center between the lateral deformation block A and the lateral deformation block B; 3. Press the part to be processed between the lateral deformation block A and the lateral deformation block B, and press the axial direction of the workpiece through the axial positioning device; 4. Finishing. The invention adopts an elastic processing fixture, which has accurate positioning, stable clamping, avoids repeated correction and clamping, the same product can be used permanently at one time, reduces cutting vibration, improves parts precision, reduces professional requirements for operators, and improves production efficiency. It can be applied to processing procedures such as turning, milling, and drilling of plane processing, and is widely used.

Description

technical field [0001] The invention belongs to the technical field of processing, and relates to a processing fixture, in particular to a method for finishing large-tolerance parts. Background technique [0002] When high-precision parts are rough-machined in the previous process, the tolerance of the parts is relatively large, and the same parts have different dimensions. Finishing is required in the follow-up to make the finished end faces of the same parts consistent. The original method is to use a machining center to perform individual finishing on each part. For each finishing process, the parts must be centered with the help of multiple tools such as vise, end face positioning block and horizontal correction device. Both need to be re-centered, the clamping efficiency is extremely low, and the clamping is extremely unstable, and there are human errors. Contents of the invention [0003] In order to solve the above problems, the present invention provides a finish...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/06
Inventor 钱钧朱鑫波朱雨晗王荣祥杨洪平
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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