An auxiliary tool for detecting DC UVW terminals

Abstract

The application relates to the technical field of direct-current UVW terminal detection, and discloses an auxiliary tool for direct-current UVW terminal detection, which comprises a mounting frame, a first clamping unit, a second clamping unit and a conductive unit, wherein: the first clamping unit and the second clamping unit are arranged on the mounting frame, the first clamping unit and the second clamping unit are driven to move close to or away from each other by a power source; the conductive unit is arranged on the second clamping unit, one end of the conductive unit is electrically connected with a power cable; and a clamping area of a conductive connecting plate of a direct-current UVW terminal is formed between the first clamping unit and the conductive unit. The application has the effect of facilitating the power-on detection of the direct-current UVW terminal.

Description

Technical Field

[0001] This application relates to the field of DC UVW terminal testing technology, and in particular to an auxiliary tooling for DC UVW terminal testing. Background Technology

[0002] A DC UVW terminal is a connection component used for DC motors and related electrical equipment, mainly used to realize electrical connections between motor windings or other electrical components.

[0003] To ensure the reliability of its connection, the stability of its electrical performance, and the integrity of its insulation performance, and to detect and eliminate potential faults in advance and ensure the safe operation of the equipment, DC UVW terminals generally need to undergo power-on testing before leaving the factory.

[0004] However, currently, when applying current to the DC UVW terminal, the three electrodes are typically pressed simultaneously onto the three conductive connection plates of the DC UVW terminal for current testing. This testing method is prone to unstable contact, which can lead to sparks during the current application process. This not only affects the accuracy of the test results but may also threaten the safety of equipment and personnel. Utility Model Content

[0005] To facilitate the testing of the DC UVW terminal's power-on state, this application provides an auxiliary tooling for testing the DC UVW terminal.

[0006] The auxiliary tooling for DC UVW terminal testing provided in this application adopts the following technical solution: An auxiliary tooling for testing DC UVW terminals includes a mounting bracket, a first clamping unit, a second clamping unit, and a conductive unit, wherein: Both the first clamping unit and the second clamping unit are mounted on the mounting bracket, and the first clamping unit and the second clamping unit move closer to or further away from each other via a power drive source; The conductive unit is disposed on the second clamping unit, and one end of the conductive unit is electrically connected to the power cable; A clamping area for a conductive connecting plate that clamps a DC UVW terminal is formed between the first clamping unit and the conductive unit.

[0007] Optionally, the mounting bracket is provided with a main shaft, which passes through the first clamping unit and the second clamping unit. Both the first clamping unit and the second clamping unit slide in cooperation with the main shaft along the axial direction of the main shaft.

[0008] Optionally, the first clamping unit includes a first displacement frame and a first displacement rod, wherein: The main shaft passes through the first displacement frame and slides with the first displacement frame along the axial direction of the main shaft. The first displacement frame is provided with a guide hole, and the first displacement rod is placed inside the guide hole and is clearance-fitted with the guide hole.

[0009] Optionally, a first adjusting ring coaxial with the main shaft is provided on the side of the first displacement frame away from the clamping area, and the thickness of the first adjusting ring changes periodically in the circumferential direction along the axial direction of the first adjusting ring. The main shaft is provided with a first pushing unit, which is in contact with the side wall of the first adjusting ring.

[0010] Optionally, the first pushing unit includes a mounting rod and a mounting roller, wherein: The mounting rod is mounted on the main shaft, and the axial direction of the mounting rod intersects with the axial direction of the main shaft; The mounting roller is mounted on the mounting rod and rotates around the axis of the mounting rod in a rotatable manner with the mounting rod. The power drive source drives the main shaft to rotate around its own axis.

[0011] Optionally, the power drive source includes a rotary power source and an extrusion unit, wherein: The rotary power source controls the first displacement frame to move along the main shaft axis; The extrusion unit controls the first displacement rod to move along the axis of the main shaft on the first displacement frame.

[0012] Optionally, the rotational power source is a rotary cylinder, and the rotating end of the rotary cylinder is connected to the end of the main shaft.

[0013] Optionally, a compression post is provided at one end of the first displacement rod near the clamping area; The extrusion unit includes a first spring located between the extrusion column and the first displacement frame. One end of the first spring contacts the first displacement frame, and the other end of the first spring contacts the extrusion column.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. This auxiliary fixture for DC UVW terminal testing, through the coordinated action of the first and second clamping units, can quickly and stably fix the conductive connection plate within the clamping area. This structural design ensures the conductive connection plate remains in a fixed position during testing, reducing problems such as poor contact caused by unstable positioning, thereby improving testing accuracy. Simultaneously, the automated clamping and energizing process reduces the complexity of manual operation and improves testing efficiency. 2. The first displacement rod of the first clamping unit is fitted with the guide hole with a clearance, allowing for fine-tuning of the angle to adapt to the shape of the conductive connecting plate, increasing the contact area and making the clamping more secure. Furthermore, the first and second springs buffer and adjust the clamping force, preventing damage to the conductive connecting plate due to excessive clamping force. In addition, when placing the conductive connecting plate, care is taken to avoid scratching the first clamping unit or the conductive unit, further reducing the possibility of scratches on the conductive connecting plate and effectively protecting it. 3. The main shaft passes through and slides between the first and second clamping units, providing precise guidance for their movement. This guiding structure ensures the correct orientation of the first and second clamping units when they move closer or further apart, preventing equipment malfunctions caused by deviations in movement direction. Simultaneously, the power drive source includes a rotary power source and a pressing unit. The rotary cylinder, as the rotary power source, stably drives the main shaft, providing stable power support for the entire clamping and power-on detection process, thus improving the stability and reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the detection status of the DC UVW terminal in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram illustrating the DC UVW terminal structure in the embodiments of this application.

[0017] Figure 3 This is a top view of the overall structure in the embodiment of this application.

[0018] Figure 4 yes Figure 3 A cross-sectional view along the AA direction.

[0019] Figure 5 This is a schematic diagram illustrating the relative positions of the first clamping unit and the second clamping unit in an embodiment of this application.

[0020] Figure 6 This is a schematic diagram illustrating the relative positions of the first displacement frame, the second displacement frame, and the main shaft in an embodiment of this application.

[0021] Figure 7 This is a schematic diagram illustrating the extrusion unit structure in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures: 1. DC UVW terminal; 11. Terminal body; 12. Conductive connection plate; 2. Mounting bracket; 21. Main shaft; 3. First clamping unit; 31. First displacement bracket; 311. Guide hole; 312. First adjusting ring; 32. First displacement rod; 321. Extrusion column; 4. Second clamping unit; 41. Second displacement bracket; 411. Second adjusting ring; 42. Second displacement rod; 43. Placement seat; 5. Conductive unit; 6. Power drive source; 61. Rotation power source; 62. Extrusion unit; 621. First spring; 622. Second spring; 7. First pushing unit; 71. Mounting rod; 72. Mounting roller; 8. Second pushing unit. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0024] This application discloses an auxiliary tooling for testing DC UVW terminals.

[0025] A DC UVW terminal includes a terminal body 11 and a conductive connecting plate 12. The conductive connecting plate 12 is fixedly mounted on the terminal body 11, and there are three conductive connecting plates 12.

[0026] An auxiliary tooling for testing DC UVW terminals includes a mounting frame 2, a first clamping unit 3, a second clamping unit 4, and a conductive unit 5. Both the first clamping unit 3 and the second clamping unit 4 are mounted on the mounting frame 2, and are brought closer together or further apart by a power drive source 6. The conductive unit 5 is mounted on the second clamping unit 4, and one end of the conductive unit 5 is electrically connected to a power cable. A clamping area for a conductive connecting plate 12 for clamping DC UVW terminals is formed between the first clamping unit 3 and the conductive unit 5.

[0027] When it is necessary to test the power supply of the DC UVW terminal, the conductive connecting plate 12 of the DC UVW terminal is inserted into the clamping area. During the placement of the conductive connecting plate 12, the possibility of the conductive connecting plate 12 scraping against the first clamping unit 3 or the conductive unit 5 should be avoided as much as possible, thereby reducing the possibility of the conductive connecting plate 12 scratching the conductive unit 5. After the conductive connecting plate 12 is placed in the clamping area, the first clamping unit 3 and the second clamping unit 4 are brought closer together synchronously by the power drive source 6, so that the first clamping unit 3 presses the conductive connecting plate 12 tightly onto the conductive unit 5. The power cable energizes the conductive connecting plate 12 through the conductive cable to facilitate the power supply test of the DC UVW terminal.

[0028] A main shaft 21 is horizontally mounted on the mounting bracket 2. One end of the main shaft 21 passes through the mounting bracket 2 and rotates with the mounting bracket 2 around its own axis. The main shaft 21 passes through the first clamping unit 3 and the second clamping unit 4. Both the first clamping unit 3 and the second clamping unit 4 slide with the main shaft 21 along its axis. When the first clamping unit 3 and the second clamping unit 4 move, the main shaft 21 guides the first clamping unit 3 and the second clamping unit 4, thereby improving the correctness of the direction in which the first clamping unit 3 and the second clamping unit 4 move closer or further away from each other.

[0029] The first clamping unit 3 includes a first displacement frame 31 and a first displacement rod 32. The main shaft 21 passes through the first displacement frame 31 and slides along the axis of the main shaft 21. The first displacement frame 31 has a guide hole 311, and the first displacement rod 32 is placed inside the guide hole 311 and has a clearance fit with it. Since the DC UVW terminal has three conductive connection plates 12, there are three first displacement rods 32, each corresponding to one conductive connection plate 12.

[0030] The first displacement rod 32 and the guide hole 311 are fitted with a clearance so that when the end of the first displacement rod 32 is in contact with the conductive connecting plate 12, the angle of the first displacement rod 32 can be finely adjusted inside the guide hole 311 to adapt to the shape of the conductive connecting plate 12 and further increase the contact area between the first displacement rod 32 and the conductive connecting plate 12 as much as possible.

[0031] A first adjusting ring 312, coaxial with the main shaft 21, is provided on the side of the first displacement frame 31 away from the clamping area. The thickness of the first adjusting ring 312 varies periodically circumferentially along the axial direction of the first adjusting ring 312. A first pushing unit 7 is provided on the main shaft 21, and the first pushing unit 7 is in contact with the side wall of the first adjusting ring 312.

[0032] When the first pushing unit 7 and the side wall of the first adjusting ring 312 are in continuous contact, the first pushing unit 7 is fixed on the main shaft 21. Since the thickness of the first adjusting ring 312 changes periodically in the circumferential direction along the axis of the first adjusting ring 312, the first displacement frame 31 is pushed by the first pushing unit 7 along the length direction of the main shaft 21 during the rotation of the main shaft 21.

[0033] The first pushing unit 7 includes a mounting rod 71 and a mounting roller 72. The mounting rod 71 is mounted on the main shaft 21, and the axial direction of the mounting rod 71 intersects with the axial direction of the main shaft 21. The mounting roller 72 is mounted on the mounting rod 71 and rotates around the axial direction of the mounting rod 71 in coordination with the mounting rod 71. The power drive source 6 drives the main shaft 21 to rotate around its own axial direction.

[0034] When the power drive source 6 drives the main shaft 21 to rotate, the main shaft 21 drives the mounting rod 71 and the mounting roller 72 to rotate. The mounting roller 72 and the side wall of the first adjusting ring 312 are in continuous contact to push the first displacement frame 31. Due to the rotational cooperation between the mounting roller 72 and the mounting rod 71, the frictional resistance between the mounting roller 72 and the first adjusting ring 312 is further reduced.

[0035] The power drive source 6 includes a rotary power source 61 and an extrusion unit 62. The rotary power source 61 controls the first displacement frame 31 to move along the axis of the main shaft 21. The rotary power source 61 is a rotary cylinder, which is fixedly mounted on the mounting frame 2. The rotating end of the rotary cylinder is connected to the end of the main shaft 21.

[0036] The extrusion unit 62 controls the first displacement rod 32 to move along the axis of the main shaft 21 on the first displacement frame 31. An extrusion post 321 is provided at one end of the first displacement rod 32 near the clamping area. The extrusion unit 62 includes a first spring 621, located between the extrusion post 321 and the first displacement frame 31. One end of the first spring 621 contacts the first displacement frame 31, and the other end contacts the extrusion post 321. The elastic force of the first spring 621 keeps the first adjusting ring 312 in continuous contact with the mounting roller 72. Simultaneously, the first spring 621 also buffers and adjusts the pressure of the first extrusion post 321 on the conductive connecting plate 12, reducing the possibility of excessive pressure on the conductive connecting plate 12, which could damage it.

[0037] The second clamping unit 4 includes a second displacement frame 41, a second displacement rod 42, and a placement seat 43. The main shaft 21 passes through the second displacement frame 41, and the second displacement frame 41 is slidably engaged with the main shaft 21 along its axial direction. The second displacement rod 42 passes through the first displacement frame 31 and the second displacement frame 41, and is slidably engaged with both. The second displacement rod 42 is mounted on the mounting frame 2, and the mounting frame 2, through the second displacement rod 42 and its cooperation with the main shaft 21, limits the movement direction of the first displacement frame 31 and the second displacement frame 41.

[0038] The placement seat 43 is fixedly installed at the end of the second displacement rod 42 away from the rotary cylinder. The placement seat 43 is provided with three placement slots to fix and place three conductive units 5.

[0039] The second displacement frame 41 is fixedly installed with a second adjusting ring 411 at the end away from the first displacement frame 31, and a second pushing unit 8 is provided on the main shaft 21. The structure of the second adjusting ring 411 is the same as that of the first adjusting ring 312, and the structure of the second pushing unit 8 is the same as that of the first pushing unit 7. During the rotation of the main shaft 21, the second pushing unit 8 moves the second displacement frame 41 by pushing the second adjusting ring 411.

[0040] The extrusion unit 62 also includes a second spring 622, which is sleeved on the second displacement rod 42. The second spring 622 is divided into two parts: the first part is located between the first displacement frame 31 and the second displacement frame 41, and the second part is located between the second displacement frame 41 and the placement seat 43.

[0041] The implementation principle of the auxiliary tooling for testing a DC UVW terminal 1 in this application embodiment is as follows: When testing the DC UVW terminal for power-on, the conductive connecting plate 12 of the DC UVW terminal is first inserted into the clamping area formed by the first clamping unit 3 and the conductive unit 5. During placement, the conductive connecting plate 12 is prevented from scraping against the first clamping unit 3 or the conductive unit 5. Subsequently, the power drive source 6 drives the spindle 21 to rotate. The first pushing unit 7 on the spindle 21 contacts the first adjusting ring 312 on the first displacement frame 31, pushing the first displacement frame 31 to move along the spindle 21. At the same time, the second pushing unit 8 contacts the second adjusting ring 411 on the second displacement frame 41, pushing the second displacement frame 41 to move along the spindle 21, thereby bringing the first clamping unit 3 and the second clamping unit 4 closer to each other. During this process, the first displacement rod 32 in the first clamping unit 3, under the elastic force of the first spring 621, can be finely adjusted along the guide hole 311 to better fit the conductive connecting plate 12 and increase the contact area; the second spring 622 in the second clamping unit 4 acts as a buffer for the movement of the first displacement frame 31 and the second displacement frame 41. Finally, the first clamping unit 3 presses the conductive connecting plate 12 tightly onto the conductive unit 5, and the power cable energizes the conductive connecting plate 12 through the conductive unit 5, completing the energization detection of the DC UVW terminal.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary tooling for testing DC UVW terminals, characterized in that: It includes a mounting bracket, a first clamping unit, a second clamping unit, and a conductive unit, wherein: Both the first clamping unit and the second clamping unit are mounted on the mounting bracket, and the first clamping unit and the second clamping unit move closer to or further away from each other via a power drive source; The conductive unit is disposed on the second clamping unit, and one end of the conductive unit is electrically connected to the power cable; A clamping area for a conductive connecting plate that clamps a DC UVW terminal is formed between the first clamping unit and the conductive unit.

2. The auxiliary tooling for testing DC UVW terminals according to claim 1, characterized in that: The mounting bracket is provided with a main shaft, which passes through the first clamping unit and the second clamping unit. Both the first clamping unit and the second clamping unit slide in cooperation with the main shaft along the axial direction of the main shaft.

3. The auxiliary tooling for testing DC UVW terminals according to claim 2, characterized in that: The first clamping unit includes a first displacement frame and a first displacement rod, wherein: The main shaft passes through the first displacement frame and slides with the first displacement frame along the axial direction of the main shaft. The first displacement frame is provided with a guide hole, and the first displacement rod is placed inside the guide hole and is clearance-fitted with the guide hole.

4. The auxiliary tooling for testing DC UVW terminals according to claim 3, characterized in that: The first displacement frame is provided with a first adjusting ring on the side away from the clamping area, which is coaxial with the main shaft. The thickness of the first adjusting ring changes periodically in the circumferential direction along the axial direction of the first adjusting ring. The main shaft is provided with a first pushing unit, which is in contact with the side wall of the first adjusting ring.

5. The auxiliary tooling for testing DC UVW terminals according to claim 4, characterized in that: The first pushing unit includes a mounting rod and a mounting roller, wherein: The mounting rod is mounted on the main shaft, and the axial direction of the mounting rod intersects with the axial direction of the main shaft; The mounting roller is mounted on the mounting rod and rotates around the axis of the mounting rod in a rotatable manner with the mounting rod. The power drive source drives the main shaft to rotate around its own axis.

6. The auxiliary tooling for testing DC UVW terminals according to claim 3, characterized in that: The power drive source includes a rotary power source and an extrusion unit, wherein: The rotary power source controls the first displacement frame to move along the main shaft axis; The extrusion unit controls the first displacement rod to move along the axis of the main shaft on the first displacement frame.

7. The auxiliary tooling for testing DC UVW terminals according to claim 6, characterized in that: The rotary power source is a rotary cylinder, and the rotating end of the rotary cylinder is connected to the end of the main shaft.

8. The auxiliary tooling for testing DC UVW terminals according to claim 6, characterized in that: The first displacement rod has a compression column at one end near the clamping area; The extrusion unit includes a first spring located between the extrusion column and the first displacement frame. One end of the first spring contacts the first displacement frame, and the other end of the first spring contacts the extrusion column.

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