Test tool for through-shaft motor

Abstract

The utility model discloses a test tool for a through-shaft motor. The test tool comprises a fixed support; the mounting disc comprises an adapter disc and a fixed disc, the adapter disc is connected with the fixed support, and the fixed disc is connected with the adapter disc; one end of the motor shaft penetrates through the fixed disc; one end of the rotating speed and torque sensor is connected with the other end of the motor shaft; and an output shaft of the driving piece is connected with the other end of the rotating speed torque sensor. Through application of the through-shaft motor testing tool, the through-shaft motor can be fixed on the testing tool support, the concentricity of a motor shaft and a sensor shaft can be improved by adjusting the installation disc and the external shaft under the condition that a motor body is free of a shaft, and the testing accuracy of the through-shaft motor is improved. And the tool bracket and the mounting disc can be flexibly adjusted according to the sizes and shapes of different motors to adapt to various types of through-shaft motors, so that the application range of the equipment is expanded.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine servo system technology, and in particular to a testing fixture for a through-shaft motor. Background Technology

[0002] In sewing machine servo systems, the most commonly used servo motors are those with integrated front and rear end caps and a single motor shaft. When fixed to the sewing machine head, this type of motor is connected via bolts through the holes in the front end cap and the machine head, and then a coupling connects the motor shaft to the sewing machine spindle. The testing fixture for this type of motor involves locking the motor onto the mounting plate of the fixture bracket through the fixing holes in the front end cap. The mounting plate is connected to the fixture bracket with screws. Since the mounting hole positions on different motor front end caps vary, different mounting plates can be used to fix the motor. The mounting bracket remains fixed to the fixture base, and a limit block maintains the parallelism between the fixing plane and the testing fixture bracket. By adjusting the front-back, left-right, and right directions of the fixture base, the concentricity of the motor shaft and the speed and torque sensor shaft is ensured. The other end of the sensor is connected to the drive motor. After the position is determined, the test motor rotates under the action of the drive motor, the sensor receives the signal, and the test motor data is obtained.

[0003] For through-shaft motors, this type of testing fixture is unsuitable. Through-shaft motors differ in structure from integrated motors. They lack a motor shaft, and some even lack a front cover. The connection to the sewing machine body is as follows: the motor rotor is fitted onto the sewing machine's main shaft and secured with screws; then the stator is fitted onto the rotor, and the motor body is inserted into the sewing machine, secured by the rear cover's holes and the machine body's threaded holes. For such motors, current testing fixtures cannot secure the motor shaft, and the motor housing cannot pass through the center hole of the mounting plate, making it impossible to connect the motor to the speed and torque sensor and thus preventing testing. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a testing fixture for a through-shaft motor, comprising:

[0005] Fixed bracket;

[0006] The mounting plate includes an adapter plate and a fixing plate, wherein the adapter plate is connected to the fixing bracket and the fixing plate is connected to the adapter plate;

[0007] A motor shaft, one end of which passes through the fixed disk, and the other end of which passes through a through-shaft motor;

[0008] A speed and torque sensor, one end of which is connected to one end of the motor shaft;

[0009] A driving member, an output shaft of the driving member being connected to the other end of the rotating speed and torque sensor.

[0010] In another preferred embodiment, the fixing support comprises a base, a back plate and two support plates, the back plate is arranged to extend in a vertical direction, a plurality of through holes are arranged on the back plate, an installation opening is arranged in the middle of the back plate, the lower end of the back plate is fixedly connected with the base, the two support plates are arranged on the two sides of the back plate respectively, the two support plates are fixedly connected with the back plate, and the two support plates are fixedly connected with the base.

[0011] In another preferred embodiment, the fixing disc comprises a disc body, a clamping jaw and an extension, the clamping jaw is fixedly arranged on the disc body, an extension opening is arranged in the middle of the disc body, the extension is arranged in a hollow cylindrical shape, the extension extends away from the disc body in an axial direction, and the extension passes through the installation opening.

[0012] In another preferred embodiment, a plurality of support holes are arranged on the adapter disc, and the support holes are matched with the through holes.

[0013] In another preferred embodiment, the motor shaft comprises a first installation portion, a connecting portion and a second installation portion, one end of the connecting portion is fixedly connected with the first installation portion, the other end of the connecting portion is fixedly connected with the second installation portion, one end of the first installation portion extends into the through-shaft motor, and the first installation portion, the connecting portion and the second installation portion are rotatably arranged in the extension opening and the extension.

[0014] In another preferred embodiment, the motor shaft further comprises a head portion and a tail portion, one end of the head portion is fixedly connected with the first installation portion, one end of the tail portion is fixedly connected with the second installation portion, and the other end of the tail portion passes through the extension.

[0015] In another preferred embodiment, the clamping jaw comprises a first clamping block, a second clamping block and a third clamping block, the first clamping block, the second clamping block and the third clamping block are arranged on the disc body, the first clamping block, the second clamping block and the third clamping block are arranged to extend in the axial direction of the extension, and one end of the first clamping block, one end of the second clamping block and one end of the third clamping block away from the disc body are provided with motor fixing holes.

[0016] In another preferred embodiment, a first bearing sleeve is arranged on the periphery of the first installation portion, a second bearing sleeve is arranged on the periphery of the second installation portion, the inner diameter of the first bearing sleeve is in interference fit with the first installation portion, and the inner diameter of the second bearing sleeve is in interference fit with the second installation portion.

[0017] In another preferred embodiment, one end of the extension part is in communication with the extension opening, and an inner wall of the other end of the extension part is provided with a mounting hole, the mounting hole is respectively provided with an inner circlip groove on a side away from the extension opening, and the first bearing and the second bearing are arranged against the inner circlip.

[0018] The utility model discloses a test tool of through shaft motor is provided, and the through shaft motor can be fixed on the test tool support, and the motor body is without shaft, and through adjusting the mounting disc and external shaft, the concentricity of motor shaft and sensor shaft is improved, the test tool support and mounting disc can be flexibly adjusted according to the size and shape of different motors, and a plurality of through shaft motor models are adapted, and the use range of equipment is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the test tool of through shaft motor of the utility model;

[0020] Figure 2 It is a structural schematic view of the mounting disc of the test tool of through shaft motor of the utility model;

[0021] Figure 3 It is a structural schematic view of the motor shaft of the test tool of through shaft motor of the utility model;

[0022] Figure 4 It is the partial sectional view of the mounting disc of the test tool of through shaft motor of the utility model;

[0023] Figure 5 It is the back schematic view of the fixed support of the test tool of through shaft motor of the utility model.

[0024] In the drawings:

[0025] 1, fixed support;2, mounting disc;3, adapter disc;4, fixed disc;5, motor shaft;6, speed and torque sensor;7, driving part;8, base;9, back plate;10, support plate;11, disc body;12, claw;13, extension part;14, first mounting part;15, connecting part;16, second mounting part;17, head;18, tail;19, first clamping block;20, second clamping block;21, third clamping block;22, extension opening;23, mounting hole. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms of "up", "down", "left", "right", "inner", "outer", "front", "back", "horizontal", "vertical" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, so it cannot be understood as a limitation on the present application.

[0028] It should be particularly pointed out that "horizontal" and "vertical" in the present application are used to illustrate the approximate position relationship, and not the strict "horizontal plane" or "vertical plane".

[0029] As shown in Figures 1 to 5 The test tool of the through shaft motor of a preferred embodiment is shown, which comprises a fixing support 1, a mounting disc 2, the mounting disc 2 comprising an adapter disc 3 and a fixed disc 4, the adapter disc 3 being connected with the fixing support 1, the fixed disc 4 being connected with the fixing support 1, the fixed disc 4 being connected with the adapter disc 3, a motor shaft 5, one end of the motor shaft 5 penetrating through the fixed disc 4, the other end of the motor shaft 5 penetrating through a through shaft motor, a rotating speed and torque sensor 6, one end of the rotating speed and torque sensor 6 being connected with one end of the motor shaft 5, a driving member 7, the output shaft of the driving member 7 being connected with the other end of the rotating speed and torque sensor 6. Further, first, the rotor of the through shaft motor is sleeved on the motor shaft 5 by using an external mechanical device, then the shell of the through shaft motor is sleeved into the fixed disc 4, the position of the mounting disc 2 on the fixing support 1 is adjusted, so that the motor shaft 5 can be concentric with the shaft of the rotating speed and torque sensor 6, the rotating speed and torque sensor 6 is connected with the motor shaft 5 and the driving member 7 respectively, under the action of the driving member 7, the motor shaft 5 rotates, and the data is recorded by using the rotating speed and torque sensor 6.

[0030] Further, as a preferred embodiment, the adapter disc 3 and the fixed disc 4 are preferably an integral structure.

[0031] Further, as a preferred embodiment, the fixing support 1 comprises a base 8, a back plate 9 and two support plates 10, the back plate 9 being arranged in the vertical direction, a plurality of through holes being arranged on the back plate 9, an installation opening being arranged in the middle of the back plate 9, the lower end of the back plate 9 being fixedly connected with the base 8, the two support plates 10 being arranged on the two sides of the back plate 9 respectively, the two support plates 10 being fixedly connected with the back plate 9, and the two support plates 10 being fixedly connected with the base 8.

[0032] Further, as a preferred embodiment, the base 8, the back plate 9 and the two support plates 10 are preferably of an integral structure.

[0033] Further, as a preferred embodiment, the fixing disc 4 comprises a disc body 11, a clamping jaw 12 and an extension 13, the clamping jaw 12 is fixedly arranged on the disc body 11, the disc body 11 is provided with an extension opening 22 in the middle, the extension 13 is in a hollow cylindrical shape, the extension 13 extends from the extension opening 22 in an axial direction away from the disc body 11, the extension 13 passes through the mounting opening, and the clamping jaw 12 and the extension 13 are located on both sides of the disc body 11.

[0034] Further, as a preferred embodiment, the disc body 11, the clamping jaw 12 and the extension 13 are preferably of an integral structure.

[0035] Further, as a preferred embodiment, the adapter disc 3 is provided with a plurality of support holes, the support holes are matched with the through holes. Further, the support holes are opposite to the through holes, bolts are arranged in the opposite support holes and the through holes, and the adapter disc and the back plate are connected through the bolts.

[0036] Further, as a preferred embodiment, the motor shaft 5 comprises a first mounting portion 14, a connecting portion 15 and a second mounting portion 16, one end of the connecting portion 15 is fixedly connected with the first mounting portion 14, the other end of the connecting portion 15 is fixedly connected with the second mounting portion 16, one end of the first mounting portion 14 extends into the through-shaft motor, and the first mounting portion 14, the connecting portion 15 and the second mounting portion 16 are rotatably arranged in the extension opening 22 and the extension 13.

[0037] Further, as a preferred embodiment, the motor shaft 5 further comprises a head portion 17 and a tail portion 18, one end of the head portion 17 is fixedly connected with the first mounting portion 14, one end of the tail portion 18 is fixedly connected with the second mounting portion 16, and the other end of the tail portion 18 passes through the extension 13.

[0038] Further, as a preferred embodiment, the first mounting portion 14, the connecting portion 15, the second mounting portion 16, the head portion 17 and the tail portion 18 are preferably of an integral structure.

[0039] Further, as a preferred embodiment, the claw 12 comprises a first clamping block 19, a second clamping block 20 and a third clamping block 21, which are all arranged on the disc body 11 and extend along the axial direction of the extension part 13, and the ends of the first clamping block 19, the second clamping block 20 and the third clamping block 21 away from the disc body 11 are all provided with motor fixing holes. Further, the outer wall of the housing of the through-shaft motor is provided with three connecting ears, the connecting ears are provided with connecting holes opposite to the fixing holes, and the connecting holes and the fixing holes are provided with bolts, and the through-shaft motor and the claw 12 are connected through the bolts.

[0040] Further, as a preferred embodiment, the first bearing is arranged around the first mounting part 14, and the second bearing is arranged around the second mounting part 16. Further, the first bearing and the second bearing are in interference fit with the motor shaft 5, the outer diameter of the connecting part 15 is greater than the inner diameter of the first bearing, the outer diameter of the connecting part 15 is greater than the inner diameter of the second bearing, and the outer diameter of the connecting part 15 is greater than the outer diameters of the first mounting part 14 and the second mounting part 16, and the above-mentioned size difference is used to limit the positions of the first bearing and the second bearing in the extension part 13 and prevent the first bearing and the second bearing from sliding in the extension part 13.

[0041] Further, as a preferred embodiment, the outer diameters of the first bearing and the second bearing are both greater than the inner diameter of the extension part 13, one end of the extension part 13 is in communication with the extension opening 22, the inner wall of the other end of the extension part 13 is provided with a mounting hole 23, the mounting hole 23 has the same inner diameter as the extension opening 22 and is greater than the inner diameter of the extension part 13, the first bearing is arranged in the extension opening 22, and the second bearing is arranged in the mounting hole 23, and the size difference between the first bearing and the second bearing and the extension part 13 is used to limit the positions of the first bearing and the second bearing in the extension part 13 and prevent the first bearing and the second bearing from sliding in the extension part 13.

[0042] Further, as a preferred embodiment, the inner walls of the sides of the mounting hole 23 and the extension opening 22 away from each other are respectively provided with an inner snap spring groove, an inner snap spring is arranged in the inner snap spring groove, and the first bearing and the second bearing are arranged in abutment with the inner snap spring. Further, the inner snap spring is used to prevent the first bearing and the second bearing from moving in the extension part 13 when the through-shaft motor is running.

[0043] The above-mentioned is only a preferred embodiment of the present application, and does not limit the implementation and protection range of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made according to the content of the present application and drawings should be included in the protection range of the present application.

Claims

1. A test fixture for a through shaft electric machine, characterized in that, The utility model provides a kind of motor drive device, including: Fixed support; Mounting disc, the mounting disc includes adapter disc and fixed disc, the adapter disc is connected with the fixed support, the fixed disc is connected with the adapter disc; Motor shaft, one end of the motor shaft passes through the fixed disc, the other end of the motor shaft passes through a through shaft motor; Rotational speed torque sensor, one end of the rotational speed torque sensor is connected with one end of the motor shaft;Drive, the output shaft of the drive is connected with the other end of the rotational speed torque sensor.

2. The test fixture for a through shaft electric machine of claim 1, wherein, The fixed support includes base, back plate and two support plates, the back plate is arranged along the vertical direction, a plurality of through holes are provided on the back plate, an installation opening is formed in the middle of the back plate, the lower end of the back plate is fixedly connected with the base, the two support plates are respectively arranged on the two sides of the back plate, the two support plates are fixedly connected with the back plate, and the two support plates are fixedly connected with the base.

3. The test fixture for a through shaft electric machine of claim 1, wherein, The fixed disc includes: disc body, jaw and extension, the jaw is fixedly arranged on the disc body, the disc body is provided with an extension opening in the middle, the extension is hollow and cylindrical, and the extension extends away from the disc body in the axial direction from the extension opening.

4. The test fixture for a through shaft electric machine of claim 2, wherein, A plurality of support holes are provided on the adapter disc, and the support holes are matched with the through holes.

5. The test fixture for a through shaft electric machine of claim 3, wherein, The motor shaft includes: first mounting portion, connecting portion and second mounting portion, one end of the connecting portion is fixedly connected with the first mounting portion, the other end of the connecting portion is fixedly connected with the second mounting portion, one end of the first mounting portion extends into the through shaft motor, and the first mounting portion, the connecting portion and the second mounting portion are rotatably arranged in the extension opening and the extension.

6. A test fixture for a through shaft electric machine as claimed in claim 5, wherein, The motor shaft further includes: head and tail, one end of the head is fixedly connected with the first mounting portion, one end of the tail is fixedly connected with the second mounting portion, and the other end of the tail passes through the extension.

7. The test fixture for a through shaft electric machine of claim 3, wherein, The jaw includes: first clamping block, second clamping block and third clamping block, the first clamping block, the second clamping block and the third clamping block are arranged on the disc body, the first clamping block, the second clamping block and the third clamping block are arranged along the axial direction of the extension, and the first clamping block, the second clamping block and the third clamping block are arranged on the disc body.

8. The test fixture for a through shaft electric machine of claim 5, wherein, The first bearing sleeve is arranged on the periphery of the first mounting portion, the second bearing sleeve is arranged on the periphery of the second mounting portion, the inner diameter of the first bearing is in interference fit with the first mounting portion, and the inner diameter of the second bearing is in interference fit with the second mounting portion.

9. The test fixture for a through shaft electric machine of claim 8, wherein, One end of the extension communicates with the extension opening, the inner wall of the other end of the extension is provided with a mounting hole, the inner clamping spring grooves are respectively formed on the sides away from each other of the mounting hole and the extension opening, the inner clamping spring is arranged in the inner clamping spring grooves, and the first bearing and the second bearing are arranged in abutment with the inner clamping spring.

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