CN221100978U

CN221100978U - Stepping motor test fixture

Info

Publication number: CN221100978U
Application number: CN202323217737.2U
Authority: CN
Inventors: 赵大晶; 陈冠军; 吴震
Original assignee: Changzhou Best Bmw Motor Co ltd
Current assignee: Changzhou Best Bmw Motor Co ltd
Priority date: 2023-11-28
Filing date: 2023-11-28
Publication date: 2024-06-07
Anticipated expiration: 2033-11-28

Abstract

The application discloses a stepping motor testing tool, and belongs to the technical field of motor control and testing. Mainly comprises the following steps: a bottom plate; the compressing mechanism is arranged above the bottom plate and used for clamping the motor to be tested; the speed reducing mechanism includes: the fixed sleeve is connected to the output shaft of the motor; the worm is arranged on the fixed sleeve; the fixed plate is fixedly arranged at the upper end of the bottom plate; the worm wheel is rotationally connected to one side of the fixed plate and is meshed with the worm; the connecting shaft is fixedly arranged at one end of the worm wheel; the supporting seat is arranged below the connecting shaft and is used for improving the transmission stability of the connecting shaft; and the wire coil is arranged at the other end of the connecting shaft and is used for hoisting weights. According to the stepping motor testing tool, the rotating speed of the motor is reduced, so that the detection time is prolonged, the lifting of weights is better controlled, the influence of weight shaking on testing is avoided, and the testing precision is improved.

Description

Stepping motor test fixture

Technical Field

The application relates to the technical field of motor control and test, in particular to a stepping motor test fixture.

Background

In order to test the performance index of the stepper motor and ensure the running reliability of the stepper motor, the stepper motor needs to be subjected to load test, so that a test tool is required to be used for testing the stepper motor.

When testing is carried out on a testing tool in the current market, after the stepping motor is connected to the tool, the load weight is directly hoisted on an output shaft of the stepping motor, and then the stepping motor is started to observe the rotation condition and performance.

Through searching, for example, in Chinese patent application publication No. CN216560910U, a load testing tool for a stepping motor is provided, and the testing tool suspends weights through a bearing seat outside a square tube, so that the weights correspond to the center of a motor to be tested, and the positions of the weights are ensured.

However, since the rotation speed of the stepper motor is high, if the weight is directly lifted and connected to the output shaft of the motor for detection, the detection time is short, and the test accuracy is poor, it is necessary to provide a stepper motor test fixture to solve the above problems.

It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.

Disclosure of Invention

Based on the above problems existing in the prior art, the present application aims to solve the problems: the utility model provides a step motor test fixture has reached through decelerating the rotational speed of motor, has not only prolonged the check time, and the lift of better control weight avoids the weight to rock and causes certain influence to the test, improves the effect of test accuracy.

The technical scheme adopted for solving the technical problems is as follows: a stepper motor testing tool, comprising:

a bottom plate;

The compressing mechanism is arranged above the bottom plate and used for clamping the motor to be tested;

a speed reducing mechanism for better controlling lifting of a lifted weight, the speed reducing mechanism having:

the fixed sleeve is connected to the output shaft of the motor;

A worm mounted on the fixed sleeve;

the fixed plate is fixedly arranged at the upper end of the bottom plate;

A worm wheel rotatably connected to one side of the fixing plate, the worm wheel being engaged with the worm;

the connecting shaft is fixedly arranged at one end of the worm wheel;

The supporting seat is arranged below the connecting shaft and is used for improving the transmission stability of the connecting shaft;

The wire coil is arranged at the other end of the connecting shaft and used for hoisting weights.

Further, the hold-down mechanism has lower locating plate, lower locating plate fixed mounting in the upper end of bottom plate, the top of lower locating plate is provided with the briquetting, lower locating plate with the opposite face of going up the briquetting all opens and is provided with the standing groove.

Further, one side of the upper pressing block is provided with an adjusting mechanism, and the adjusting mechanism is used for adjusting the position of the upper pressing block.

Furthermore, the upper pressing block is internally penetrated and fixedly provided with a binding post, the binding post is of an elastic contact type conductive structure, and a probe is arranged at a power interface of the motor.

Further, one side of the lower locating plate is fixedly provided with a front locating plate, the front locating plate protrudes out of the placing groove of the lower locating plate, and one side of the motor, which is far away from the output end, is fixedly provided with a heightening block.

Further, the opposite side of lower locating plate is provided with the back locating plate, the back locating plate has the groove that opens and shuts, the hole has been seted up to the lower extreme of back locating plate, the mounting hole has been seted up to the lower extreme of lower locating plate, mounting hole and hole internal thread connection have the bolt.

The beneficial effects of the application are as follows: according to the stepping motor testing tool, the compressing mechanism and the speed reducing mechanism are arranged, when the motor is tested, the motor to be tested is placed in the compressing structure, the motor is rapidly clamped, the weights are hoisted on the wire coil through the lead wires, the binding posts are electrified, the motor is started to rotate to drive the worm on the fixed sleeve to rotate, the worm is meshed with the worm wheel to drive the worm wheel to rotate, and meanwhile the connecting shaft rotates to drive the weights on the wire coil to move up and down, so that the rotating speed of the motor is reduced through the worm and the worm wheel, the detection time is prolonged, the lifting of the weights is better controlled, the influence of the shaking of the weights on the test is avoided, and the testing precision is improved.

In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 is an overall schematic diagram of a stepper motor testing tool according to the present application;

FIG. 2 is a partially exploded schematic view of the overall structure of FIG. 1;

FIG. 3 is an enlarged schematic cross-sectional view of the worm gear of FIG. 1;

Wherein, each reference sign in the figure:

1. a motor; 11. a probe; 12. a lifting block;

2. A compressing mechanism; 21. a lower positioning plate; 211. a mounting hole; 212. a bolt; 22. a rear positioning plate; 23. a front positioning plate; 24. pressing into blocks; 25. binding posts;

3. an adjusting mechanism; 31. a connecting block; 32. a support plate; 33. a slide rail; 34. a slide block; 35. a driver; 351. a driving shaft; 352. a support rod; 353. a handle;

4. A speed reducing mechanism; 41. a fixing plate; 42. a fixed sleeve; 43. a worm; 44. a worm wheel; 45. a connecting shaft; 46. a support base; 47. wire coil;

5. A bottom plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

As shown in fig. 1-2, the application provides a stepping motor testing tool, which comprises a bottom plate 5 and a motor 1 to be tested, wherein a probe 11 is arranged at a power interface of the motor 1 for conveniently testing the motor 1, the probe 11 is used for being connected with a detection line, a heightening block 12 is fixedly arranged at one side of the motor 1 far away from an output end, the heightening block 12 has various specifications and is used for assisting in fixing motors 1 with different specifications, and a specific using method is described in detail later;

meanwhile, a pressing mechanism 2 is arranged at the upper end of the bottom plate 5, and the pressing mechanism 2 is used for clamping the motor 1 to be tested;

The pressing mechanism 2 has a lower positioning plate 21, the lower positioning plate 21 is fixedly mounted at the upper end of the bottom plate 5, and an upper pressing block 24 is arranged above the lower positioning plate 21, it is understood that a placing groove (not shown in the figure) is formed on opposite surfaces of the lower positioning plate 21 and the upper pressing block 24, and the placing groove is used for placing the motor 1 to be tested, and the motor 1 to be tested can be pressed through the lower positioning plate 21 and the upper pressing block 24.

As shown in fig. 1-2, in order to adjust the position of the upper pressing block 24, an adjusting mechanism 3 is arranged at one side of the upper pressing block 24, the adjusting mechanism 3 is provided with a supporting plate 32, the bottom of the supporting plate 32 is fixedly arranged on the bottom plate 5, a sliding rail 33 is fixedly arranged at one side of the supporting plate 32 close to the pressing mechanism 2, a sliding block 34 is connected on the sliding rail 33 in a sliding manner, and a connecting block 31 is fixedly arranged at one end of the sliding block 34 far away from the sliding rail 33;

In the present application, a mating groove (not shown) is formed in the connecting block 31, and the upper pressing block 24 and the connecting block 31 are mated with each other through the mating groove.

Meanwhile, a driving member 35 is disposed at the upper end of the connection block 31, the driving member 35 is used for driving the connection block 31 to slide, the driving member 35 is provided with a driving shaft 351 fixedly mounted on the connection block 31, a connection plate (not shown) is sleeved on the driving shaft 351, and the connection plate is used for guiding the driving shaft 351;

And a support bar 352 is hinged at an upper end of the driving shaft 351, a handle 353 is provided at an upper end of the support bar 352, and the support bar 352 is hinged with a center of the handle 353 while one end of the handle 353 is hinged with the support plate 32, so that the connection block 31 and the upper pressing block 24 can be controlled to move in a vertical direction by pushing the handle 353.

In order to quickly locate and detect the motor 1, the upper pressing block 24 is internally penetrated and fixedly provided with a binding post 25, the binding post 25 is of an elastic contact type conductive structure, no connection is needed, one side of the lower locating plate 21, which is close to the supporting plate 32, is fixedly provided with a front locating plate 23, and the front locating plate 23 protrudes out of a placing groove of the lower locating plate 21;

Meanwhile, the other side of the lower positioning plate 21 is provided with a rear positioning plate 22, the rear positioning plate 22 is provided with an opening and closing groove, the width dimension of the opening and closing groove is smaller than that of a placing groove on the lower positioning plate 21, and a lifting block 12 arranged on the motor 1 slightly protrudes from one surface of the lower positioning plate 21 far away from the front positioning plate 23, so that when the rear positioning plate 22 is fixed with the lower positioning plate 21, the motor 1 can be fixed front and back by pressing the lifting block 12;

A hole (not shown) is formed in the lower end of the rear positioning plate 22, and a mounting hole 211 is formed in the lower end of the lower positioning plate 21, and a bolt 212 is screwed into the mounting hole 211 and the hole, so that the rear positioning plate 22 is fixed to the lower positioning plate 21 by the bolt 212.

Therefore, when the motor 1 is installed, the motor 1 is clamped into the lower locating plate 21, so that the front end of the motor 1 is propped against the front locating plate 23, at the moment, the heightening block 12 at the rear end of the motor 1 protrudes out of the lower locating plate 21, then the heightening block 12 is clamped by the rear locating plate 22, the rear locating plate 22 is fixed by the bolts 212, the probe 11 at the moment corresponds to the binding post 25, the upper pressing block 24 can be driven downwards by the adjusting mechanism 3, the motor 1 is tightly clamped, and quick positioning is realized.

As shown in fig. 2-3, in order to better control the lifting of the lifted weight, a speed reducing mechanism 4 is arranged at the output end of the motor 1, the speed reducing mechanism 4 comprises a fixed sleeve 42, the fixed sleeve 42 is fixedly connected to the output shaft of the motor 1, a worm 43 is fixedly arranged on the fixed sleeve 42, meanwhile, the speed reducing mechanism 4 also comprises a fixed plate 41, the fixed plate 41 is fixedly arranged at the upper end of the bottom plate 5, one side of the fixed plate 41 is rotatably connected with a worm wheel 44, and the worm wheel 44 is in meshed connection with the lower part of the worm 43;

One end of the worm wheel 44 is fixedly provided with a connecting shaft 45, a supporting seat 46 is arranged below the other end of the connecting shaft 45, the transmission stability of the connecting shaft 45 is improved through the supporting seat 46, a wire coil 47 is fixedly arranged at the other end of the connecting shaft 45, and the wire coil 47 is used for hoisting weights (not shown).

In summary, when testing the motor 1, the fixing sleeve 42 is first sleeved on the output shaft of the motor 1, then the motor 1 is placed in the rear positioning plate 22, and the raised block 12 of the motor 1 is clamped by the lower positioning plate 21, so that the probe 11 on the motor 1 corresponds to the binding post 25, then the handle 353 is pushed downwards, the driving shaft 351 is pushed downwards, the connecting block 31 is pushed downwards, the upper pressing block 24 is pressed above the lower positioning plate 21, and meanwhile, the binding post 25 is contacted with the probe 11, so that the motor 1 is clamped quickly, positioned accurately, and the test fixture is convenient to maintain;

Then hoist weight on drum 47 through the lead wire, terminal 25 circular telegram this moment, starter motor 1 makes its rotation drive worm 43 on the fixed cover 42 rotate, through the meshing of worm 43 and worm wheel 44, make it drive worm wheel 44 and rotate, connecting axle 45 rotates simultaneously and drives the weight on drum 47 and reciprocate, thereby speed reduction is carried out motor 1's rotational speed through worm 43 and worm wheel 44, not only prolonged the detection time, and better control weight's lift, avoid the weight to rock and cause certain influence to the test, improve test accuracy.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A step motor test fixture, its characterized in that: comprising the following steps:

A bottom plate (5);

The compressing mechanism (2) is arranged above the bottom plate (5), and the compressing mechanism (2) is used for clamping a motor to be tested;

A speed reducing mechanism (4), the speed reducing mechanism (4) is used for better controlling the weight lifting of hoisting, and the speed reducing mechanism (4) is provided with:

a fixed sleeve (42), the fixed sleeve (42) is connected to an output shaft of the motor;

A worm (43), the worm (43) being mounted on the fixed sleeve (42);

a fixing plate (41), wherein the fixing plate (41) is fixedly arranged at the upper end of the bottom plate (5);

a worm wheel (44), wherein the worm wheel (44) is rotatably connected to one side of the fixed plate (41), and the worm wheel (44) is engaged with the worm (43);

A connecting shaft (45), wherein the connecting shaft (45) is fixedly arranged at one end of the worm wheel (44);

The supporting seat (46) is arranged below the connecting shaft (45), and the supporting seat (46) is used for improving the transmission stability of the connecting shaft (45);

And the wire coil (47) is arranged at the other end of the connecting shaft (45), and the wire coil (47) is used for hoisting weights.

2. The stepper motor testing tool according to claim 1, wherein: the pressing mechanism (2) is provided with a lower locating plate (21), the lower locating plate (21) is fixedly arranged at the upper end of the bottom plate (5), an upper pressing block (24) is arranged above the lower locating plate (21), and the opposite surfaces of the lower locating plate (21) and the upper pressing block (24) are provided with placing grooves.

3. The stepper motor testing tool according to claim 2, wherein: one side of the upper pressing block (24) is provided with an adjusting mechanism (3), and the adjusting mechanism (3) is used for adjusting the position of the upper pressing block (24).

4. The stepper motor testing tool according to claim 2, wherein: the upper pressing block (24) is internally penetrated and fixedly provided with a binding post (25), the binding post (25) is of an elastic contact type conductive structure, and a probe (11) is arranged at a power interface of the motor.

5. The stepper motor testing tool according to claim 2, wherein: one side of the lower locating plate (21) is fixedly provided with a front locating plate (23), the front locating plate (23) protrudes out of a placing groove of the lower locating plate (21), and one side of the motor far away from the output end is fixedly provided with a heightening block (12).

6. The stepper motor testing tool according to claim 2, wherein: the opposite side of locating plate (21) down is provided with back locating plate (22), back locating plate (22) have the groove that opens and shuts, the hole has been seted up to the lower extreme of back locating plate (22), mounting hole (211) have been seted up to the lower extreme of locating plate (21), mounting hole (211) and hole internal thread connection have bolt (212).