阅读说明：本技术 机械加工方式制造转子屏蔽套的工艺方法 (Process method for manufacturing rotor shielding sleeve in machining mode ) 是由 张涛 黄秀波 唐浩宇 于志佳 郑维 赵环宇 宋亮 刘宇晨 柴文虎 刘继东 杨振 于 2020-11-10 设计创作，主要内容包括：本发明涉及一种机械加工方式制造转子屏蔽套的工艺方法；将方箱(6)安装在工作台(7)上,方箱(6)上安装V型铁(5),调整V型铁(5)水平到0.02mm以内；转子屏蔽套(4)安装在V型铁(5)上,在转子屏蔽套(4)外圆缠绕3mm厚耐油橡胶板(2),用胶带(1)将耐油橡胶板(2)固定,用收缩带(3)将转子屏蔽套(4)固定到工作台(7)上；在镗床用桥式镗刀(10)进行粗、精加工转子屏蔽套内孔,镗削参数为切削深度0.05mm,进给量0.1mm,转速80～100r/min；转子屏蔽套内孔最终尺寸留0.05mm余量,自制滚压刀(8)装配到镗床主轴上,滚压转子屏蔽套(4)内孔提高光洁度。本发明可实现转子屏蔽套在镗床进行一次装卡,完成转子屏蔽套内孔加工,保证内孔尺寸公差、形位公差以及光洁度。(The invention relates to a process method for manufacturing a rotor shielding sleeve in a machining mode; installing a square box (6) on a workbench (7), installing V-shaped iron (5) on the square box (6), and adjusting the level of the V-shaped iron (5) to be within 0.02 mm; the rotor shielding sleeve (4) is arranged on a V-shaped iron (5), an oil-resistant rubber plate (2) with the thickness of 3mm is wound on the excircle of the rotor shielding sleeve (4), the oil-resistant rubber plate (2) is fixed by an adhesive tape (1), and the rotor shielding sleeve (4) is fixed on a workbench (7) by a contraction band (3); roughly and finely machining the inner hole of the rotor shielding sleeve by using a bridge type boring cutter (10) on a boring machine, wherein the boring parameters comprise cutting depth of 0.05mm, feeding quantity of 0.1mm and rotating speed of 80-100 r/min; and (3) reserving a 0.05mm allowance for the final size of the inner hole of the rotor shielding sleeve, assembling a self-made rolling cutter (8) on a boring machine main shaft, and rolling the inner hole of the rotor shielding sleeve (4) to improve the smoothness. The invention can realize the one-time clamping of the rotor shielding sleeve on the boring mill, complete the inner hole processing of the rotor shielding sleeve and ensure the dimensional tolerance, the form and position tolerance and the smoothness of the inner hole.)

1. A process method for manufacturing a rotor shielding sleeve in a machining mode is characterized by comprising the following steps:

the method comprises the following steps:

1) cleaning the boring machine workbench (7) to ensure the workbench to be clean;

2) respectively installing square boxes (6) on a workbench (7), installing V-shaped iron (5) on the square boxes, respectively adjusting the level of the V-shaped iron (5) by using a level meter, wherein the parallelism of the V-shaped iron (5) relative to the workbench (7) is not more than 0.02 mm;

3) horizontally mounting a rotor shielding sleeve (4) on a V-shaped iron (5), winding an oil-resistant rubber plate (2) with the thickness of 3mm for reducing vibration in the machining process on the outer surface of the rotor shielding sleeve (4), fixing the rotor shielding sleeve (4) and the oil-resistant rubber plate (2) by using an adhesive tape (1), winding a contraction belt (3) at the position 200mm away from the end face of each of two ends of the rotor shielding sleeve (4), and fixing the contraction belt (3) and a workbench (7);

4) assembling the bridge type boring cutter (10) on a boring machine spindle (8), extending the spindle (8) by 1500mm, starting a workbench to be close to the bridge type boring cutter, and adjusting the position of the bridge type boring cutter (10): the cutting depth is adjusted by adjusting a bridge type boring cutter adjusting block (9), under the condition that a main shaft is not moved, a workbench is started to move back and forth, and the inner hole machining of the rotor shielding sleeve (4) is realized, wherein the cutting parameters are the cutting depth of 0.05mm, the feeding amount of 0.1mm and the rotating speed of 80-100 r/min;

5) the bridge type boring cutter (10) is removed, a rolling cutter (11) is assembled on the main shaft, the rolling depth is 0.01mm each time, rolling is carried out for multiple times until the size and the smoothness meet the requirements of a drawing, the rolling process is stopped until the size and the smoothness meet the requirements of the drawing, 40# engine oil is adopted for lubrication, the feeding amount is 0.05mm, and the rotating speed is 35-50 r/min.

The technical field is as follows:

the invention relates to a process method for manufacturing a rotor shielding sleeve in a machining mode.

Background art:

the rotor shielding sleeve used in the existing shielding motor mainly adopts two modes of manufacturing by a spinning process and a plate welding rolling process. The rotor shielding sleeve manufactured by the spinning process has uneven thickness and poor straightness, and can generate integral jumping difference after being assembled on a rotor, thereby influencing the dynamic balance of the subsequent rotor and even influencing the integral operation of a motor, and reducing the service life; the welding quality of the rotor shielding sleeve manufactured by the plate welding rolling process is difficult to control, the performance deviation of a welding line and a heat affected zone is large, and the defects such as bulge, fold and the like are easy to occur under the action of pressure after the rotor shielding sleeve is assembled on a rotor, so that the operation of a motor is influenced and even accidents occur; in order to ensure the performance and stability of the rotor shielding sleeve of the shielding motor, a new manufacturing process of the rotor shielding sleeve is needed.

The invention content is as follows:

the invention aims to provide a process method for manufacturing a rotor shielding sleeve in a machining mode. The technical content of the invention is as follows:

a process method for manufacturing a rotor shielding sleeve in a machining mode comprises the following steps:

the method comprises the following steps:

1) cleaning the boring machine workbench (7) to ensure the workbench to be clean;

2) respectively installing square boxes (6) on a workbench (7), installing V-shaped iron (5) on the square boxes, respectively adjusting the level of the V-shaped iron (5) by using a level meter, wherein the parallelism of the V-shaped iron (5) relative to the workbench (7) is not more than 0.02 mm;

3) horizontally mounting a rotor shielding sleeve (4) on a V-shaped iron (5), winding an oil-resistant rubber plate (2) with the thickness of 3mm for reducing vibration in the machining process on the outer surface of the rotor shielding sleeve (4), fixing the rotor shielding sleeve (4) and the oil-resistant rubber plate (2) by using an adhesive tape (1), winding a contraction belt (3) at the position 200mm away from the end face of each of two ends of the rotor shielding sleeve (4), and fixing the contraction belt (3) and a workbench (7);

4) assembling the bridge type boring cutter (10) on a boring machine spindle (8), extending the spindle (8) by 1500mm, starting a workbench to be close to the bridge type boring cutter, and adjusting the position of the bridge type boring cutter (10): the cutting depth is adjusted by adjusting a bridge type boring cutter adjusting block (9), under the condition that a main shaft is not moved, a workbench is started to move back and forth, and the inner hole machining of the rotor shielding sleeve (4) is realized, wherein the cutting parameters are the cutting depth of 0.05mm, the feeding amount of 0.1mm and the rotating speed of 80-100 r/min;

5) the bridge type boring cutter (10) is removed, a rolling cutter (11) is assembled on the main shaft, the rolling depth is 0.01mm each time, rolling is carried out for multiple times until the size and the smoothness meet the requirements of a drawing, the rolling process is stopped until the size and the smoothness meet the requirements of the drawing, 40# engine oil is adopted for lubrication, the feeding amount is 0.05mm, and the rotating speed is 35-50 r/min.

The invention has the technical effects that:

the invention realizes the manufacturing of the rotor shielding sleeve by changing the manufacturing process, achieves the purposes of uniform wall thickness and inner hole precision of the rotor shielding sleeve and meeting the use requirement, gets rid of the problems of uneven thickness and size and poor linearity of the rotor shielding sleeve caused by the manufacturing of the rotor shielding sleeve by the spinning process and the welding rolling process, and reduces the risks of poor integral jumping, bulging and wrinkling after being assembled on the rotor. The rotor shielding sleeve is manufactured by adopting conventional modes such as a spinning process, a welding rolling process and the like, the forming rate is low, the deviation is large after forming, the size of an inner hole is inconsistent, multi-center circles appear, and the integral magnetic performance of a motor is influenced.

The invention not only ensures that the size, form and position tolerance and the smoothness of the inner hole meet the requirements of drawings, but also has uniform wall thickness, thereby enhancing the bearing capacity after assembly, avoiding the conditions of bulging, wrinkling and the like, having lower cost, and carrying out process refinement on the basis of simulation parts according to the size and the requirements of products, thereby summarizing a set of complete process method for manufacturing the rotor shielding sleeve in a mechanical processing mode to guide production.

In the process of machining the rotor shielding sleeve, the straightness and the roundness of an inner hole of the rotor shielding sleeve are not guaranteed, the problem of taper of a boring cutter caused by gravity due to the fact that the rotor shielding sleeve is too long must be overcome, the main shaft is kept still after extending out of a sufficient length, the machining purpose is achieved through the fact that a workbench moves back and forth, the front taper and the rear taper meet the drawing requirements, but due to the fact that the rotor shielding sleeve is thin, the finish degree of the inner hole of the shielding sleeve cannot meet the drawing requirements, a special rolling tool is designed aiming at the problem, namely the rolling tool is used for rotating under the driving of a machine tool, the surface is hardened, high points are flattened, and the original pure machining mode is changed to improve the;

the process for manufacturing the rotor shielding sleeve by the machining mode is verified on a simulation piece with a similar size, is applied to a plurality of products, is good in using effect, and achieves the expected effect of the products.

Description of the drawings:

FIG. 1 is a schematic view of a rotor shield sleeve clamp and a process thereof

FIG. 2 is a schematic view of a rolling knife

The specific implementation mode is as follows:

as shown in fig. 1, a process for manufacturing a rotor shielding case by machining includes the following steps:

1) cleaning the boring machine workbench 7 to ensure the workbench to be clean;

2) respectively installing square boxes 6 on a workbench 7, installing V-shaped iron 5 on the square boxes, respectively adjusting the level of the V-shaped iron 5 by using a level meter, wherein the parallelism of the V-shaped iron 5 relative to the workbench 7 is not more than 0.02 mm;

3) horizontally mounting a rotor shielding sleeve 4 on a V-shaped iron 5, winding an oil-resistant rubber plate 2 with the thickness of 3mm for reducing vibration in the machining process on the outer surface of the rotor shielding sleeve 4, fixing the rotor shielding sleeve 4 and the oil-resistant rubber plate 2 by using an adhesive tape 1, winding a contraction belt 3 at the position 200mm away from the end face at the two ends of the rotor shielding sleeve 4, and fixing the contraction belt 3 and a workbench 7;

4) assembling the bridge type boring cutter 10 on a boring machine spindle 8, extending the spindle 8 by 1500mm, starting a workbench to be close to the bridge type boring cutter, and adjusting the position of the bridge type boring cutter 10: the cutting depth is adjusted by adjusting a bridge type boring cutter adjusting block 9, under the condition that a main shaft is not moved, the working table is started to move back and forth, the inner hole of the rotor shielding sleeve 4 is machined, and the cutting parameters are the cutting depth of 0.05mm, the feeding amount of 0.1mm and the rotating speed of 80-100 r/min;

5) as shown in figure 2, the bridge type boring cutter 10 is removed, a rolling cutter 11 is assembled on a main shaft, the rolling depth is 0.01mm each time, rolling is carried out for multiple times until the size and the smoothness meet the requirements of a drawing, the rolling process is stopped, 40# engine oil is adopted for lubrication, the feeding amount is 0.05mm, and the rotating speed is 35-50 r/min.