Multi-angle adjustable test fixture for stepper motor
By designing a multi-angle adjustable test fixture for stepper motors, and using a motor mounting base and temperature sensor for motor clamping and temperature detection, the problem of insufficient temperature monitoring during stepper motor angle adjustment is solved, thus improving the stability and safety of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU LIYUAN MOTOR ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-04
AI Technical Summary
During the stepper motor angle adjustment test, the temperature of the motor housing was not monitored, which may have led to high-temperature damage.
A multi-angle adjustable test fixture for stepper motors was designed, comprising a fixed circular plate and a multi-motor angle adjustment and temperature detection mechanism. The angle adjustment and temperature detection are achieved using a motor mounting base and a temperature sensor, and the clamping and temperature monitoring of the motors are realized through components such as an electric push rod, an L-shaped moving plate, and guide columns.
This technology enables real-time temperature monitoring and stable support during motor angle adjustment, preventing motor wobbling and improving the stability and safety of the test.
Smart Images
Figure CN224594788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stepper motor testing technology, specifically a multi-angle adjustable test fixture for stepper motors. Background Technology
[0002] A stepper motor is an open-loop controlled motor that converts electrical pulse signals into angular or linear displacement. It is a primary actuator in modern digital program control systems and has extremely wide applications. Under normal conditions, the motor's speed and stopping position depend only on the frequency and number of pulse signals, and are unaffected by load changes. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in a set direction; this angle is called the step angle. The angular displacement is controlled by controlling the number of pulses, thus achieving accurate positioning; the motor's speed and acceleration are controlled by controlling the pulse frequency. When performing angle adjustment tests on stepper motors, the temperature of the stepper motor during operation is not monitored, and the temperature change of the stepper motor housing during the angle adjustment test is unknown. The impact of temperature change on the stepper motor is also unknown. This may result in the temperature of the stepper motor housing becoming uncontrollable during angle adjustment, leading to high-temperature damage to the stepper motor. To address this, we propose a multi-angle adjustable stepper motor test fixture. Utility Model Content
[0003] The purpose of this invention is to provide a multi-angle adjustable test fixture for stepper motors to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a stepper motor multi-angle adjustable test fixture, including a fixed circular plate, on which a multi-motor angle adjustment and temperature detection mechanism is provided. The multi-motor angle adjustment and temperature detection mechanism includes a motor mounting base and a temperature sensor. The multi-motor angle adjustment and temperature detection mechanism is used to perform angle adjustment and rotation actions on the motor mounting base and the temperature sensor. The temperature sensor is used to perform temperature detection actions on an external motor placed on the motor mounting base.
[0005] Preferably, the upper end of the motor placement seat has a motor placement slot, an electric push rod is fixedly installed on the inner side of the upper end of the motor placement seat, an L-shaped moving plate is fixedly installed on the output end of the electric push rod, a motor limiting seat is fixedly installed on the lower end of the vertical section of the L-shaped moving plate, a motor matching slot is opened at the lower end of the motor limiting seat, a spring is fixedly installed on the lower end of the horizontal section of the L-shaped moving plate, a fixed disc is fixedly installed on the lower end of the spring, a guide post is fixedly installed on the surface of the fixed disc and the guide post penetrates the fixed disc, a temperature sensor is fixedly installed on the lower end of the guide post, and the temperature sensor is set corresponding to the motor placement slot.
[0006] Preferably, a small gear is fixedly installed at the lower end of the motor mounting base, a second rotating shaft is fixedly installed at the lower end of the small gear, a large gear is meshed with the inner end of the small gear, a first rotating shaft is fixedly installed at the lower end of the large gear, the output end of the active motor is fixedly installed at the lower end of the first rotating shaft, and a fixed circular plate is fixedly installed at the upper end of the active motor.
[0007] Preferably, the outer end of the guide post is slidably connected to an L-shaped moving plate, and the outer end of the guide post passes through the L-shaped moving plate.
[0008] Preferably, the first rotating shaft passes through the fixed circular plate, and the outer end of the first rotating shaft is rotatably connected to the fixed circular plate through a bearing.
[0009] Preferably, a plurality of side frames distributed in a circular pattern are fixedly installed at the lower end of the fixed circular plate, and a supporting base plate is fixedly installed at the lower end of the side frames.
[0010] Preferably, a power supply is fixedly installed at the middle of the upper part of the support base plate, a connecting wire is fixedly installed at the upper end of the power supply, and an active motor is fixedly installed at the end of the connecting wire away from the power supply.
[0011] Preferably, a second rotating shaft is fixedly installed at the lower end of the pinion, and the lower end of the second rotating shaft is rotatably connected to a fixed circular plate via a bearing.
[0012] Preferably, a wireless transmission terminal is fixedly installed on the side of the motor mounting base, and a wireless receiving terminal is fixedly installed on the upper middle part of the large gear.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can simultaneously clamp multiple external stepper motors through a multi-motor angle adjustment temperature detection mechanism, and can detect and transmit the temperature of each external stepper motor during the angle adjustment rotation process, which can be used to monitor the temperature changes of stepper motors during the angle adjustment rotation process.
[0014] 2. This utility model can provide stable support for the multi-motor angle adjustment temperature detection mechanism through the side frame and supporting base plate, preventing the external stepper motor from shaking during temperature detection and improving the stability of the detection process. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the multi-motor angle adjustment temperature detection mechanism of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the multi-motor angle adjustment temperature detection mechanism of this utility model. Figure 2 .
[0016] In the diagram: 1. Support base plate; 2. Side frame; 3. Fixed circular plate; 4. Multi-motor angle adjustment temperature detection mechanism; 41. Active motor; 42. First rotating shaft; 43. Large gear; 44. Small gear; 45. Second rotating shaft; 46. Motor placement seat; 47. Motor placement slot; 48. Temperature sensor; 49. Wireless transmission terminal; 410. Electric push rod; 411. L-shaped moving plate; 412. Motor limit seat; 413. Motor matching slot; 414. Spring; 415. Fixed disc; 416. Guide column; 5. Wireless receiving terminal; 6. Power supply; 7. Connecting cable. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-4 This utility model provides a technical solution: a stepper motor multi-angle adjustable test fixture, including a fixed circular plate 3, on which a multi-motor angle adjustment and temperature detection mechanism 4 is provided. The multi-motor angle adjustment and temperature detection mechanism 4 includes a motor placement seat 46 and a temperature sensor 48. The multi-motor angle adjustment and temperature detection mechanism 4 is used to perform angle adjustment and rotation actions on the motor placement seat 46 and the temperature sensor 48. The temperature sensor 48 is used to perform temperature detection actions on the external motor placed on the motor placement seat 46.
[0019] In this embodiment, a motor placement slot 47 is provided at the upper end of the motor placement seat 46. An electric push rod 410 is fixedly installed on the inner side of the upper end of the motor placement seat 46. An L-shaped moving plate 411 is fixedly installed at the output end of the electric push rod 410. A motor limiting seat 412 is fixedly installed at the lower end of the vertical section of the L-shaped moving plate 411. A motor matching slot 413 is provided at the lower end of the motor limiting seat 412. A spring 414 is fixedly installed at the lower end of the horizontal section of the L-shaped moving plate 411. A fixed disc 415 is fixedly installed at the lower end of the spring 414. A guide post 416 is fixedly installed on the surface of the fixed disc 415 and the guide post 416 penetrates the fixed disc 415. A temperature sensor 48 is fixedly installed at the lower end of the guide post 416. The temperature sensor 48 is set corresponding to the motor placement slot 47.
[0020] Specifically, when detecting the casing temperature of an external stepper motor, the external stepper motor is first placed in the motor placement slot 47. Then, the electric push rod 410 is activated. The output end of the electric push rod 410 drives the L-shaped moving plate 411 and the motor limit seat 412 to move downward. When the inner wall of the motor matching slot 413 abuts against the outer end of the external stepper motor, the power supply to the electric push rod 410 is stopped. During the downward movement of the L-shaped moving plate 411, the L-shaped moving plate 411 drives the spring 414, the fixed disk 415, the guide post 416, and the temperature sensor 48 to move downward. During this process, the detection end of the temperature sensor 48 abuts against the casing of the external stepper motor. During this process, the spring 414 is compressed, and the fixed disk 415 and the guide post 416 slide. The guide post 416 slides relative to the L-shaped moving plate 411.
[0021] In this embodiment, a small gear 44 is fixedly installed at the lower end of the motor mounting base 46, a second rotating shaft 45 is fixedly installed at the lower end of the small gear 44, a large gear 43 is meshed with the inner end of the small gear 44, a first rotating shaft 42 is fixedly installed at the lower end of the large gear 43, the output end of the active motor 41 is fixedly installed at the lower end of the first rotating shaft 42, and a fixed circular plate 3 is fixedly installed at the upper end of the active motor 41.
[0022] Specifically, when it is necessary to adjust the angle of the external stepper motor, the active motor 41 can be started. The output of the active motor 41 drives the first rotating shaft 42 to rotate. The first rotating shaft 42 drives the large gear 43 to rotate. The large gear 43 drives each small gear 44 to rotate in the opposite direction. The small gears 44 drive the second rotating shaft 45 to rotate. The second rotating shaft 45 rotates with the fixed circular plate 3. The small gears 44 drive the motor mounting base 46 to rotate, which in turn drives the external stepper motor placed in the motor mounting slot 47 to rotate.
[0023] In this embodiment, the outer end of the guide post 416 is slidably connected to the L-shaped moving plate 411, and the outer end of the guide post 416 passes through the L-shaped moving plate 411.
[0024] Specifically, ensure that the guide post 416 does not interfere with the L-shaped moving plate 411 during the movement.
[0025] In this embodiment, the first rotating shaft 42 passes through the fixed circular plate 3, and the outer end of the first rotating shaft 42 is rotatably connected to the fixed circular plate 3 through a bearing.
[0026] Specifically, ensure that the first rotating shaft 42 does not interfere with the fixed circular plate 3 during rotation.
[0027] In this embodiment, a plurality of side frames 2 arranged in a circular pattern are fixedly installed at the lower end of the fixed circular plate 3, and a supporting base plate 1 is fixedly installed at the lower end of the side frames 2.
[0028] Specifically, the side frame 2 and the supporting base plate 1 can provide stable support for the multi-motor angle adjustment temperature detection mechanism 4, preventing the external stepper motor from shaking during temperature detection and improving the stability of the detection process.
[0029] In this embodiment, a power supply 6 is fixedly installed at the middle of the upper end of the support base plate 1, a connecting wire 7 is fixedly installed at the upper end of the power supply 6, and an active motor 41 is fixedly installed at the end of the connecting wire 7 away from the power supply 6.
[0030] Specifically, the power supply 6 and the connecting wire 7 can directly supply power to the active motor 41.
[0031] In this embodiment, a second rotating shaft 45 is fixedly installed at the lower end of the pinion 44, and the lower end of the second rotating shaft 45 is rotatably connected to the fixed circular plate 3 through a bearing.
[0032] Specifically, the rotation of the pinion 44 drives the second shaft 45 to rotate. During this rotation, the second shaft 45 will not interfere with the fixed circular plate 3.
[0033] In this embodiment, a wireless transmission terminal 49 is fixedly installed on the side of the motor mounting base 46, and a wireless receiving terminal 5 is fixedly installed on the upper middle part of the large gear 43.
[0034] Specifically, the temperature of each external stepper motor housing can be transmitted via a wireless transmission terminal and a wireless receiving terminal 5.
[0035] Working Principle: When angle adjustment of an external stepper motor is required, first place the external stepper motor into the motor placement slot 47. Next, start the electric push rod 410. The output end of the electric push rod 410 drives the L-shaped moving plate 411 and the motor limit seat 412 to move downwards. Power supply to the electric push rod 410 is stopped once the inner wall of the motor matching slot 413 abuts against the outer end of the external stepper motor. During the downward movement of the L-shaped moving plate 411, it drives the spring 414, the fixed disc 415, the guide post 416, and the temperature sensor 48 to move downwards. During this process, the detection end of the temperature sensor 48 abuts against the outer shell of the external stepper motor. The spring 414 is compressed, the fixed disc 415 and the guide post 416 slide, and the guide post 416 slides relative to the L-shaped moving plate 411. Next, the active motor 41 can be started. At this time, the output end of the active motor 41 drives the first rotating shaft 42 to rotate. At this time, the first rotating shaft 42 drives the large gear 43 to rotate. At this time, the large gear 43 drives each small gear 44 to rotate in the opposite direction. At this time, the small gear 44 drives the second rotating shaft 45 to rotate. At this time, the second rotating shaft 45 rotates with the fixed disc 3. At this time, the small gear 44 drives the motor mounting base 46 to rotate, which in turn drives the external stepper motor placed in the motor mounting slot 47 to rotate.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-angle adjustable test fixture of a stepper motor, comprising a fixed circular plate (3), characterized in that: The fixed circular plate (3) is provided with a multi-motor angle adjustment temperature detection mechanism (4). The multi-motor angle adjustment temperature detection mechanism (4) includes a motor mounting base (46) and a temperature sensor (48). The multi-motor angle adjustment temperature detection mechanism (4) is used to perform angle adjustment rotation on the motor mounting base (46) and the temperature sensor (48). The temperature sensor (48) is used to perform temperature detection on the external motor placed on the motor mounting base (46).
2. The multi-angle adjustable test fixture of a stepper motor according to claim 1, wherein: The upper end of the motor placement seat (46) is provided with a motor placement slot (47). An electric push rod (410) is fixedly installed on the inner side of the upper end of the motor placement seat (46). An L-shaped moving plate (411) is fixedly installed at the output end of the electric push rod (410). A motor limiting seat (412) is fixedly installed at the lower end of the vertical section of the L-shaped moving plate (411). A motor matching slot (413) is provided at the lower end of the motor limiting seat (412). A spring (414) is fixedly installed at the lower end of the horizontal section of the L-shaped moving plate (411). A fixed disc (415) is fixedly installed at the lower end of the spring (414). A guide post (416) is fixedly installed on the surface of the fixed disc (415) and the guide post (416) passes through the fixed disc (415). A temperature sensor (48) is fixedly installed at the lower end of the guide post (416). The temperature sensor (48) is set corresponding to the motor placement slot (47).
3. The multi-angle adjustable test fixture of a stepper motor according to claim 1, wherein: A small gear (44) is fixedly installed at the lower end of the motor mounting base (46). A second rotating shaft (45) is fixedly installed at the lower end of the small gear (44). A large gear (43) is meshed with the inner end of the small gear (44). A first rotating shaft (42) is fixedly installed at the lower end of the large gear (43). The output end of the active motor (41) is fixedly installed at the lower end of the first rotating shaft (42). A fixed circular plate (3) is fixedly installed at the upper end of the active motor (41).
4. The multi-angle adjustable test fixture of a stepper motor according to claim 2, wherein: The outer end of the guide post (416) is slidably connected to the L-shaped moving plate (411), and the outer end of the guide post (416) passes through the L-shaped moving plate (411).
5. The multi-angle adjustable test fixture of a stepper motor according to claim 3, wherein: The first rotating shaft (42) passes through the fixed circular plate (3), and the outer end of the first rotating shaft (42) is rotatably connected to the fixed circular plate (3) through a bearing.
6. The multi-angle adjustable test fixture of a stepper motor according to claim 1, wherein: The lower end of the fixed circular plate (3) is fixedly installed with multiple side frames (2) arranged in a circular pattern, and the lower end of the side frames (2) is fixedly installed with a supporting base plate (1).
7. The multi-angle adjustable test fixture of a stepper motor according to claim 6, wherein: A power supply (6) is fixedly installed at the middle of the upper end of the support base plate (1), a connecting line (7) is fixedly installed at the upper end of the power supply (6), and an active motor (41) is fixedly installed at the end of the connecting line (7) away from the power supply (6).
8. The multi-angle adjustable test fixture of a stepper motor according to claim 3, wherein: The lower end of the pinion (44) is fixedly mounted with a second rotating shaft (45), and the lower end of the second rotating shaft (45) is rotatably connected to the fixed circular plate (3) through a bearing.
9. The multi-angle adjustable test fixture of a stepper motor according to claim 3, wherein: A wireless transmission terminal (49) is fixedly installed on the side of the motor mounting base (46), and a wireless receiving terminal (5) is fixedly installed on the upper middle part of the large gear (43).