CN106533083A - Stator holder - Google Patents

Abstract

The invention discloses a stator holder. The stator holder comprises a lower seat, a moving seat arranged on the lower seat, a first driving mechanism and a support seat. A first groove is arranged on the lower seat. A second groove part is arranged on the moving part. The second groove part corresponds to the first groove part. After the moving seat and the lower seat are put together, a hole for accommodating a stator is formed between the first groove part and the first groove part. The first driving mechanism drives the moving seat to be opened or closed with the lower seat, and is connected with the moving seat. The support seat and the first driving mechanism are arranged on the support seat. The stator holder is advantageous in that the stator holder is easily taken and placed.

Description

Stator support

technical field

The invention relates to a stator support.

Background technique

With the continuous development of production equipment, some special-shaped motors have appeared. The stator of the motor is longer in size. Due to the limitation of its mechanism, the traditional paper insertion machine cannot complete the paper insertion operation of such special-shaped motors. Generally, manual work is used. However, the production efficiency of manual operation is low, which cannot meet the requirements of mass production.

Publication No. CN103401382A discloses a motor stator core wire drawing machine. Referring to FIGS. One end of the lower seat 401 is fixed on the workbench. The lower seat includes a base 405 and a ferrule 406 fixed on the base. The ferrule 406 is provided with a notch, and the wall of the notch is used to coordinate with the axial direction of the connecting sleeve 402. Limit, and facilitate the formation of a sliding fit with the connecting sleeve. The connecting sleeve 402 is arranged on the lower seat, and the connecting sleeve is sleeved on the lower seat and is slidably matched with the lower seat. One end of the support seat 403 is fixed on the inner wall surface of the connection sleeve 402, and the other end of the support seat is inside the connection sleeve and extends radially of the connection sleeve. One end of the movable clamp is fixed on the inner wall surface of the connecting sleeve, and the other end of the movable clamp is inside the connecting sleeve and extends radially of the connecting sleeve. Movable fixture comprises connecting seat 407, screw mandrel mechanism, telescopic mechanism and pressing seat 408, and the screw rod 409 of screw mandrel mechanism is connected with connecting seat 407, and telescopic mechanism comprises two pairs of movable blocks, and every pair of movable blocks is composed of first movable block 410 and The second movable block 411 is made up of, and the middle part of the first movable block 410 and the middle part of the second movable block 411 are hinged so that each pair of movable blocks is formed into an X shape, and one end of the first movable block 410 is hinged with the connecting seat 407, and the first movable block The other end of 410 is hinged with the pressing seat, one end of the second movable block 411 is hinged with the nut 412 of the screw mechanism, and the other end of the second movable block is hinged with the pressing seat 408 .

The working process of the stator core clamping device 400 is as follows: the stator core 500 is placed on the support seat of the stator core clamping device, and the nut 412 of the screw mechanism is moved by operating the screw 409 of the screw mechanism, thereby driving The telescoping mechanism expands and contracts in the radial direction of the connecting sleeve 402, and further expands and contracts the pressing seat in the radial direction of the connecting sleeve, thereby exerting clamping force on the stator core.

The stator core clamping device 400 exerts a radial force on the circumferential surface of the stator core 500 through a plurality of movable clamps 404 , thereby clamping the stator core 500 between the movable clamps 404 . In order to protect the enameled wire embedded in the wire groove from being damaged, the corresponding slot bottom paper (insulation paper) will be inserted in advance in the wire groove of the stator core 500, and the two ends of the groove bottom paper will be exposed to the stator core 500. In addition to the axial end face, in the process of embedding the wire, it can avoid the direct contact between the enameled wire and the embedding slot and damage the enameled wire under the friction force generated during the moving process.

Contents of the invention

For the above-mentioned stator core clamping device 400, in the process of clamping the stator core 500, it is necessary to adjust the screw 409 of each screw mechanism to move the nut 412 of the screw mechanism, thereby driving the telescopic mechanism to the connecting sleeve. The radial direction of 402 expands and contracts, so adjusting the screw rod 409 of each screw mechanism is not only cumbersome to operate, but also when the uniformity of adjustment is inconsistent, it is easy to cause inconsistent force on the stator core 500, thereby causing the stator core 500 to be inconsistent with the embedded wire. The molds are not concentric.

In addition, since there is no protection mechanism to protect the two ends of the slot bottom paper, during the wire embedding process, due to the friction force between the enameled wire and the slot bottom paper, this friction force makes the slot bottom paper and the wire embedding groove During the movement of the enameled wire, it is easy to cause the bottom paper of the groove to be damaged by the friction of the wire groove (especially at the four corners of the wire groove), thus losing the protective effect on the enameled wire.

The purpose of the present invention is to provide a stator holder that is convenient to take and place.

The technical scheme that realizes the object of the present invention is as follows:

The stator support includes: a lower seat with a first groove; and

The movable seat is arranged on the lower seat, and the second groove part is arranged on the movable seat, and the second groove part corresponds to the first groove part. After the movable seat and the lower seat are combined, the second groove part and the first groove part forming a bore to accommodate the stator; and

a first drive mechanism that drives the movable seat to open or close with the lower seat, and the first drive mechanism is connected with the movable seat; and

The support, the lower seat and the first driving mechanism are respectively arranged on the support.

Preferably, one end of the lower seat is hinged to one end of the movable seat through a hinge device.

Preferably, the hinged device includes an arm, one end of the arm is hinged to the movable seat, and the end of the arm connected to the movable seat is provided with a protruding part, and the protruding part is hinged to the lower seat.

Preferably, it also includes a second drive mechanism, the lower seat is composed of a first lower seat and a second lower seat, the first lower seat is fixed on the support, and the second lower seat is slidingly fitted on the support , the second lower seat is connected with the second driving mechanism;

The movable seat is composed of a first movable seat and a second movable seat, the first movable seat corresponds to the first lower seat, and the second movable seat corresponds to the second lower seat.

Preferably, a connecting rod is also included, the first movable seat and the first lower seat, and the second movable seat and the second lower seat are respectively hinged through arms, the other end of the arm is provided with a through hole, and one end of the connecting rod Through the through hole on one arm, the other end of the connecting rod passes through the through hole on the other arm, and the first driving mechanism is hinged with the connecting rod.

Preferably, the axial end surface of the lower seat or the groove wall surface of the first groove part is provided with a limiting part for axially limiting the stator, and the axial end surface of the movable seat or the groove wall surface of the second groove part is provided with a stator The limit part of the axial limit.

Preferably, a first paper protection mechanism is provided on the axial end surface of the movable seat, and the first paper protection mechanism includes: a plurality of first grooves arranged radially along the movable seat, and there is a gap between each first groove fitted with a first paper-protecting part; and

a first paper-protecting drive mechanism that drives the first paper-protecting member to radially displace along the movable seat;

A second paper protection mechanism is provided on the axial end surface of the lower seat, and the second paper protection mechanism includes: a plurality of second grooves arranged radially along the lower seat, and a first groove is loosely fitted in each second groove. Two paper protection parts; and

A second paper-protecting driving mechanism that drives the second paper-protecting member to radially displace along the movable seat.

Preferably, the first paper-protecting drive mechanism includes a first movable plate that can rotate along the circumferential direction of the movable seat, and a plurality of first installation grooves are arranged at intervals on the axial end surface of the first movable disk, and these first installation grooves are defined by a cam curve. enclosed; and

a first linear drive mechanism connected to the first movable disc;

The second paper protection drive mechanism includes a second movable disk that can rotate along the circumferential direction of the movable seat, and a plurality of second installation grooves are arranged at intervals on the axial end surface of the second movable disk, and these second installation grooves are surrounded by cam curves, One end of the second movable disk abuts against one end of the first movable disk.

Preferably, the movable base is provided with a first limiting member for limiting the radial displacement of the first movable disk, and the lower seat is provided with a second limiting member for limiting the radial displacement of the second movable disk.

Preferably, a mobile slide is also included, and the support is slidably fitted on the mobile slide; and

a second linear drive mechanism, the second linear drive mechanism is fixedly connected to the support; and

a base on which the mobile slide is slidably fitted; and

A third linear drive mechanism, the third linear drive mechanism is fixedly connected with the moving slide.

The advantage of the present invention is that the drive mechanism can control the opening and closing of the movable seat and the lower seat, so as to install or take out the stator that needs to insert wires. Through the first paper protection mechanism and the second paper protection mechanism, force is applied to and maintained on the pre-inserted slot bottom paper, so as to avoid contact between the slot bottom paper and the stator angle during the line embedding process and prevent damage.

Instructions attached

Fig. 1 and Fig. 2 are the schematic diagrams of the stator core clamping device in the prior art;

Fig. 3 is the schematic diagram when the stator holder of the present invention is closed;

Fig. 4 is a schematic diagram of the open state of the stator holder of the present invention;

Fig. 5 is a schematic diagram after hiding some parts in Fig. 3;

Fig. 6 is a schematic diagram after hiding some parts on the basis of Fig. 5;

Fig. 7 is the schematic diagram of movable seat;

Fig. 8 is the schematic diagram of lower seat;

Figure 9 is a schematic diagram of the upper cover;

Fig. 10 is a schematic diagram after the stator support of the present invention is assembled with a running gear;

In the attached picture:

1 is the support;

10 is the first lower seat, 11 is the second lower seat, 11a is the screw rod, 12 is the first groove, 13 is the second groove, 13a is the interval part, 13b is the end, 14 is the second paper protecting part , 14a is the groove portion, 15 is the second movable plate, 15a is the second installation groove, and 16 is the upper cover plate;

20 is the first movable seat, 21 is the second movable seat, 22 is the second groove, 23 is the first groove, 23a is the interval part, 23b is the end, 24 is the first paper protecting part, 24a is the groove , 25 is the first movable disc, 25a is the first installation groove, 26 is the first linear drive mechanism, 27 is the upper cover plate, and 27a is the groove;

30 is an arm, 31 is a raised portion, and 32 is a connecting rod;

40 is the first driving mechanism;

50 is a moving slide, 51 is a second linear drive mechanism, 52 is a base, and 53 is a third linear drive mechanism;

100 is a stator.

detailed description

As shown in Figure 3 and Figure 4, the stator holder of the present invention, the lower seat is made up of the first lower seat 10 and the second lower seat 11, one end of the first lower seat 10 is fixed on the support 1, the first lower seat 10 The other end of the second lower seat 11 is provided with a first groove 12, and a slide rail is provided on the support 1. One end of the second lower seat 11 is slidably fitted on the support 1, and the other end of the second lower seat 11 is provided with a first groove. 12. Preferably, the first groove portion 12 is arc-shaped. The second lower base 11 is connected with the second driving mechanism, and the second driving mechanism preferably adopts a screw mechanism, wherein, one end of the screw mandrel 11a of the screw mandrel mechanism is connected with the bearing arranged on the first lower base 10, and the screw mandrel 11a The other end is threadedly connected with the second lower seat 11 and then connected with the output shaft of the motor. The torque output by the motor drives the screw mandrel to rotate, and the screw mandrel drives the second lower seat 11 to move linearly, so that the first lower seat 10 and the second lower seat 10 can be changed. For the spacing between the lower seats 11 , for stators 100 of different thicknesses (or heights), changing the spacing between the first lower seat 10 and the second lower seat 11 can be adapted. The axial end surface of the lower seat or the groove wall surface of the first groove portion 12 is provided with a limiting portion for axially limiting the stator, and the axial end surface of the first lower seat 10 and the second lower seat 11 or the first groove portion A limiting portion for axially limiting the stator is provided on the wall of the slot.

The movable seat is made up of a first movable seat 20 and a second movable seat 21 , the first movable seat 20 corresponds to the first lower seat 10 , and the second movable seat 21 corresponds to the second lower seat 11 . Both the first movable seat 20 and the second movable seat 21 are provided with a second groove portion 22 , preferably, the second groove portion 22 is arc-shaped. The second groove portion 22 corresponds to the first groove portion 12 , and after the movable seat and the lower seat are combined, the second groove portion 22 and the first groove portion 12 form a hole for accommodating the stator 100 . The axial end surface of the movable seat or the groove wall surface of the second groove part is provided with a limiting part for axially limiting the stator, and the axial end surfaces of the first movable seat 20 and the second movable seat 21 or the grooves of the second groove part A limiting portion for axially limiting the stator is provided on the wall.

The movable seat is arranged on the lower seat, preferably, one end of the lower seat and one end of the movable seat are hinged through a hinge device, that is, one end of the first movable seat 20 is hinged with one end of the first lower seat 10, and the second movable seat 21 One end of one end is hinged with one end of the second lower seat 11. Preferably, the hinged device includes an arm 30 and a connecting rod 32. Since there are a first movable seat 20 and a second movable seat 21 in the method of this embodiment, two arms 30 are also used, and one end of one arm 30 Hinged with the first movable seat 20, one end of the other arm is hinged with the second movable seat 21, and the end that the arm is connected with the movable seat is provided with a raised portion 31, thereby the profile of the arm is L-shaped, and the raised portion of one of the arms is The raised portion 31 is hinged to the first lower seat 10 , and the raised portion 31 of the other arm is hinged to the second lower seat 11 . The other end of the arm 30 is provided with a through hole, one end of the connecting rod 32 passes through the through hole on one arm 30, and the other end of the connecting rod 32 passes through the through hole on the other arm.

As shown in Figure 4, the first driving mechanism 40 is an air cylinder or an oil cylinder, the first driving mechanism 40 is fixed on the support 1 through the mounting seat, the first driving mechanism drives the movable seat to open or close with the lower seat, the first driving mechanism The mechanism is connected with the movable seat, and the first driving mechanism is hinged with the connecting rod 32. When the piston rod of the first driving mechanism 40 shrinks, the connecting rod 32 pulls the first movable seat 20 and the second movable seat 21 to rotate around the hinge point, Thereby make the other end of the first movable seat 20 and the first lower seat 10 form an opening in the circumferential direction, and make the second movable seat 21 and the second lower seat 11 form an opening in the circumferential direction, so that the stator 100 is put into the second On the lower seat 10 and the second lower seat 11. When the piston rod of the first driving mechanism 40 is stretched out, the first movable seat 20 and the second movable seat 21 are returned, thereby forming a closed loop with the first movable seat 20 and the first lower seat 10, the second movable seat 21 and the second movable seat The two lower seats 11 form a closed loop.

As shown in Figure 5 to Figure 7 and Figure 9, a first paper protection mechanism is provided on the axial end surface of the movable seat, and the first paper protection mechanism includes: a plurality of first grooves arranged radially along the movable seat, and A first paper-protecting driving mechanism that drives the first paper-protecting member 24 to radially displace along the movable seat. Since the movable seat is composed of the first movable seat 20 and the second movable seat 21, therefore, in the present embodiment, a first paper protection mechanism is arranged on the axial end faces of the first movable seat 20 and the second movable seat 21, and the second movable seat The first movable seat 20 and the second movable seat 21 are provided with first grooves 23 on the axial end faces. Obviously, two adjacent first grooves 23 have intervals 23a. In this embodiment, The shape of the first groove 23 is preferably selected as a rectangle, and like this, the shape of the spacer portion 23a is then a triangle, and an end portion 23b of the spacer portion 23a extends to the range corresponding to the second groove portion 22, so these extended parts The end portion 23b is arranged at intervals on one side of the second groove portion 22, and the end portion 23b is inserted into the second groove portion 22 to form an axial limit on one end of the stator, so the end portion 23b forms the axial end of each movable seat. Facing the limiting portion of the axial limiting of the stator. In each first groove 23, a first paper-protecting member 24 is clearance-fitted, and one end of the first paper-protecting member 24 is provided with a groove portion 24a, preferably, the groove portion 24a is U-shaped, and the groove portion 24a is used for The groove bottom paper on the stator is against the groove wall surface of the groove, so that the first paper protecting part forms a thrust effect on the groove bottom paper, so that a gap is formed between the part where the groove bottom paper contacts the first paper protecting part and the stator , so as to avoid contact between the bottom paper of the groove and the four corners of the wire groove during the process of embedding the wire, and prevent damage to the bottom paper of the groove. The first paper protection drive mechanism includes a first movable disk 25 that can rotate along the circumferential direction of the movable seat and a first linear drive mechanism 26 connected to the first movable disk 25. The axial end surface of the first movable disk 25 is arranged at intervals. A plurality of first installation grooves 25a, these first installation grooves 25a are surrounded by cam curves. The other end of the first paper protecting member 24 is provided with a mounting hole, and one end of a connecting member is inserted into the mounting hole to be flexibly connected with the first paper protecting member 24, and the other end of the connecting member passes through the first installing groove 25a and The first movable disc 25 is flexibly connected. The first linear drive mechanism 26 is a cylinder or an oil cylinder or a screw mechanism. In this embodiment, the cylinder is preferably selected, and the first linear drive mechanism 26 outputs a linear thrust to make the first movable disk 25 rotate, thereby making the first guard The paper parts 24 are radially displaced along their respective movable seats in the installation groove 25a surrounded by the cam curve. The movable seat is provided with a first limiting part that limits the radial displacement of the first movable disc. On the first movable seat 20 and the second movable seat 21, there are upper cover plates 27 respectively, and the upper cover plate 27 faces the first movable seat. One end of the movable disk 25 is provided with a groove 27a, and the first movable disk 25 is limited by the side wall of the groove, and can only rotate in the groove, but cannot be radially displaced, therefore. Of course, the upper cover plate 27 constitutes the first limiting component that limits the radial displacement of the first movable disc. This limited mode of the first movable disc 25 is not limited to the restricted mode by the upper cover plate 27. For example, arc-shaped Groove, the first movable disc 25 can be inserted into the groove through a cylindrical pin or other connecting parts connected thereto.

As shown in Figure 5, Figure 6, and Figure 8, a second paper protection mechanism is provided on the axial end surface of the lower seat, and the second paper protection mechanism includes: a plurality of second grooves arranged radially along the lower seat 13, and a second paper-protecting drive mechanism that drives the second paper-protecting member to displace radially along the movable seat. Since the lower seat is composed of the first lower seat 10 and the second lower seat 11, in this embodiment, a second paper protection mechanism is provided on the axial end faces of the first lower seat 10 and the second lower seat 11. Second grooves 13 are provided on the axial end faces of the lower seat 10 and the second lower seat 11. Obviously, two adjacent second grooves 13 have intervals 13a. In this embodiment, The shape of the second groove 13 is preferably selected as a rectangle, and like this, the shape of the spacing portion 13a is then a triangle, and an end portion 13b of the spacing portion 13a extends to the range corresponding to the position of the first groove portion 12, so these extending The end portions 13b are arranged at intervals on one side of the first groove portion 12 , and when the end portions 13b are put into the first groove portion 12 , one end of the stator forms an axial limit. Therefore, the end portion 13b forms a limiting portion for axially limiting the axial end faces of the stators of each lower seat. In each second groove 13, a second paper-protecting member 14 is clearance-fitted, and one end of the second paper-protecting member 14 is provided with a groove portion 14a, preferably, the groove portion 14a is U-shaped, and the groove portion 14a is used for The groove bottom paper on the stator is against the groove wall surface of the groove, so that the first paper protecting part forms a thrust effect on the groove bottom paper, so that a gap is formed between the part where the groove bottom paper contacts the first paper protecting part and the stator , so as to avoid contact between the bottom paper of the groove and the four corners of the wire groove during the process of embedding the wire, and prevent damage to the bottom paper of the groove. The second paper protection drive mechanism includes a second movable disk 15 that can rotate along the circumferential direction of the movable seat. A plurality of second mounting grooves 15a are arranged at intervals on the axial end surface of the second movable disk 15. These second mounting grooves 15a are formed by cams. surrounded by curves. The other end of the second paper protecting member 14 is provided with a mounting hole, and one end of a connecting member is inserted into the mounting hole to be flexibly connected with the second paper protecting member 14, and the other end of the connecting member passes through the second installing groove 15a and The second movable disk 15 is movably connected. One end of the second movable disk 15 abuts against an end of the first movable disk 25, and the other end of the second movable disk 15 also abuts against the other end of the first movable disk 25, and when the first movable disk 25 rotates, by this The first movable disk transmits the circumferential rotational force to the second movable disk 15, thereby pushing the second movable disk 15 to also rotate. In this way, the second movable disk 15 does not need to be provided with a separate air cylinder or oil cylinder. Wait for the driving parts to drive its rotation. The second stop member that limits the radial displacement of the second movable disc is provided on the said lower seat, and a lower cover plate 16 is also provided on the first lower seat 10 and the second lower seat 11, and the lower cover plate 16 faces the first lower seat 10 and the second lower seat 11. One end of the second movable disk 15 is provided with a groove, and the second movable disk 15 is limited by the side wall of the groove, and can only rotate in the groove, but cannot radially displace, so the lower cover plate 16 constitutes a second movable disk that restricts the second movable disk. The second limiting component for the radial displacement of the disk 15. Certainly, the restriction method of the second movable disk 15 is not limited to the restriction method by the lower cover plate 16, for example, an arc is set on the axial end faces of the first lower seat 10 and the second lower seat 11. The groove, the second movable disk 15 can be inserted into the groove through the cylindrical pin or other connecting parts connected thereto.

As shown in Figure 10, the present invention is also provided with a traveling mechanism for the above-mentioned stator holder, which can make the stator holder move along the X-axis and the Y-axis. 52. The third linear drive mechanism 53. The support 1 is slidably fitted on the moving slide, and the moving slide 50 is provided with a slide rail in the Y-axis direction, and the support 1 is slidably fitted on the slide rail. The second linear drive mechanism is fixedly connected with the support 1, the second linear drive mechanism is a screw drive mechanism, the nut of the screw drive mechanism is fixedly connected with the support 1, when the screw rotates, the nut moves linearly, thereby driving The bearing 1 moves linearly, and since the slide rail is arranged along the Y-axis direction, the bearing moves linearly along the Y-axis direction. The mobile sliding table 51 is slidably fitted on the base, and the base 52 is provided with a slide rail in the X-axis direction, the mobile sliding table is slidably fitted on the slide rail, and the third linear drive mechanism is fixedly connected with the mobile sliding table 50. The linear drive mechanism is a screw drive mechanism. The nut of the screw drive mechanism is fixedly connected with the movable slide 50. When the screw rotates, the nut moves linearly, thereby driving the moveable slide 50 to move linearly. Since the slide rail is along the X-axis direction Arranged, therefore, the moving slide 50 moves linearly in the X-axis direction. In this way, the stator holder fixed on the support 1 moves along the X-axis and the Y-axis.

The present invention is not limited to the above-mentioned embodiment, for example, the lower seat does not need to be divided into the first lower seat and the second lower seat, that is, there is only one lower seat and one movable seat, and the lower seat and the movable seat of this structure are suitable for the same type of Stacked thick stator. In addition, the movable seat and the fixed seat do not need to be connected by a hinge device, and the movable seat is directly driven independently by an air cylinder or an oil cylinder to realize opening and closing with the lower seat.

Claims (10)

1. The stator support is characterized in that it includes: a lower seat, a first groove is provided on the lower seat; and The movable seat is arranged on the lower seat, and the second groove part is arranged on the movable seat, and the second groove part corresponds to the first groove part. After the movable seat and the lower seat are combined, the second groove part and the first groove part forming a bore to accommodate the stator; and a first drive mechanism that drives the movable seat to open or close with the lower seat, and the first drive mechanism is connected with the movable seat; and The support, the lower seat and the first driving mechanism are respectively arranged on the support. 2. The stator support according to claim 1, wherein one end of the lower seat is hinged to one end of the movable seat through a hinge device. 3. The stator holder according to claim 2, wherein the hinged device comprises an arm, one end of the arm is hinged to the movable seat, and a protruding part is provided at the end of the arm connected to the movable seat, and the protruding part is connected to the movable seat The lower seat is hinged. 4. The stator support according to any one of claims 1 to 3, further comprising a second drive mechanism, the lower seat is composed of a first lower seat and a second lower seat, and the first lower seat fixed on the support, the second lower seat is slidably fitted on the support, and the second lower seat is connected with the second driving mechanism; The movable seat is composed of a first movable seat and a second movable seat, the first movable seat corresponds to the first lower seat, and the second movable seat corresponds to the second lower seat. 5. The stator support according to claim 4, further comprising a connecting rod, the first movable seat and the first lower seat, and the second movable seat and the second lower seat are respectively hinged by arms, the The other end of the arm is provided with a through hole, one end of the connecting rod passes through the through hole on one arm, the other end of the connecting rod passes through the through hole on the other arm, and the first driving mechanism is hinged with the connecting rod. 6. The stator holder according to claim 1, characterized in that, the axial end surface of the lower seat or the groove wall surface of the first groove part is provided with a limiting part for axially limiting the stator, and the axial end surface of the movable seat Or the groove wall surface of the second groove portion is provided with a limiting portion for axially limiting the stator. 7. The stator holder according to claim 1, wherein a first paper protection mechanism is provided on the axial end surface of the movable seat, and the first paper protection mechanism includes: a plurality of first grooves, each of which is clearance-fitted with a first paper-protecting member; and a first paper-protecting drive mechanism that drives the first paper-protecting member to radially displace along the movable seat; A second paper protection mechanism is provided on the axial end surface of the lower seat, and the second paper protection mechanism includes: a plurality of second grooves arranged radially along the lower seat, and a first groove is loosely fitted in each second groove. Two paper protection parts; and A second paper-protecting driving mechanism that drives the second paper-protecting member to radially displace along the movable seat. 8. The stator holder according to claim 7, wherein the first paper-protecting drive mechanism comprises a first movable disk that can rotate along the circumferential direction of the movable seat, and a plurality of movable disks are arranged at intervals on the axial end surface of the first movable disk first mounting slots surrounded by cam curves; and a first linear drive mechanism connected to the first movable disc; The second paper protection drive mechanism includes a second movable disk that can rotate along the circumferential direction of the movable seat, and a plurality of second installation grooves are arranged at intervals on the axial end surface of the second movable disk, and these second installation grooves are surrounded by cam curves, One end of the second movable disk abuts against one end of the first movable disk. 9. The stator holder according to claim 8, characterized in that, the movable seat is provided with a first limiting member for limiting the radial displacement of the first movable disk, and the lower seat is provided with a limiting member for restricting the second movable disk. The second limiting component for radial displacement. 10. The stator support according to any one of claims 1, 2, 3, 6, 7, 8, and 9, further comprising a moving sliding table, and the support is slidably fitted on the moving sliding table; and a second linear drive mechanism, the second linear drive mechanism is fixedly connected to the support; and a base on which the mobile slide is slidably fitted; and A third linear drive mechanism, the third linear drive mechanism is fixedly connected with the moving slide.