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Motor case one-step turning method and clamp

A technology for turning machining and casing, applied in the field of one-tool turning machining method of motor casing and its fixture, can solve the problems of difficulty, increased processing, high requirements on casing size and tolerance, etc., to improve noise and temperature rise, and improve work efficiency , to ensure the effect of machining accuracy

Inactive Publication Date: 2015-03-25
JIANGSU DAZHONG ELECTRIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the requirements for the size and tolerance of the inside of the casing are very high, which adds a certain degree of difficulty to the processing.

Method used

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  • Motor case one-step turning method and clamp
  • Motor case one-step turning method and clamp

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Embodiment Construction

[0016] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] When finishing the planes, seams and inner holes of the high-efficiency motor casing, the KRCK518G CNC vertical machine tool and its special fixtures are used to complete the "one-tool lathe" processing technology to complete the entire process. The assembly method of the workpiece and the fixture during processing Such as figure 1 shown;

[0018] The processing method steps are as follows:

[0019] a. Roughly machine the inner hole of the motor casing, the end face and the inner stop at the end face on the double-sided rough boring machine, and leave a finishing allowance of 1 to 1.5 mm on one side; considering the...

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Abstract

The invention relates to the technical field of metal machining, in particular to a motor case one-step turning method and a clamp. The problem that finish machining of an inner hole and two end faces of an existing motor case needs to be completed by two steps, and is low in precision is solved. The motor case one-tool turning method comprises the steps that a, an inner hole, the end face and an inner spigot joint on the end face of a motor case are roughly machined in a two-face rough-boring machine tool; b, one end A is selected, then, an outer spigot joint is machined in circumferentially-arranged lugs for motor end cover installation at the end A, and the end A is machined to enable the annular plane at the position, attached to the motor end cover end face, on the end face to form an annular boss; c, the motor case end A is fixedly installed on the clamp of a numerically-controlled machine tool, wherein the clamp is annular, and the inner ring of the clamp is provided with an inner spigot joint in tight fit with the outer inner spigot joint at the motor case lugs; d, the numerically-controlled machine tool is used for finish machining of the inner hole and the two end faces of the motor case, and only the annular boss of the end face A is cut to reach the needed motor case axial size except that the inner spigot joint of the end face A is machined.

Description

technical field [0001] The invention relates to the field of motor manufacturing, in particular to a motor casing-tool lathe processing method and a fixture thereof. Background technique [0002] At present, the finishing machining of the motor casing in my country's motor industry still uses the traditional U-turn turning process. It takes four steps to complete from rough turning to finishing turning; the general processing process first processes the end face and stop of the casing on an ordinary vertical lathe. The mouth and the inner hole; and then turn around to process the plane and seam of the other end of the casing. The machining process requires four clampings: two times of rough turning and two times of fine turning. Practice has proved that after a clamping process, the casing is a thin-walled part, and the spigot and the inner hole are deformed under the action of thermal internal stress. There is still a certain positioning error in U-turn turning using seam p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00B23B5/00B23Q3/00
CPCB23Q3/00H02K15/14
Inventor 王荷芬朱月萍谢恒扣
Owner JIANGSU DAZHONG ELECTRIC MOTOR
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