A novel multi-station frequency converter test fixture

Abstract

A novel multi-station inverter testing fixture includes a main frame and multiple support modules mounted on it. Each support module includes multiple support mechanisms arranged linearly. Each support mechanism includes a horizontally positioned support plate with a sleeve vertically positioned at its lower center, and an adjusting bolt spirally positioned on the outer ring of the sleeve. The support mechanism also includes a turntable with a rotating shaft vertically positioned at its lower center. The lower end of the rotating shaft vertically passes through the support plate and the sleeve and is equipped with a stop pin. A spring is positioned between the adjusting bolt and the stop pin. The inverter can be placed on the turntable, and wiring can be performed on both the front and rear sides by rotation. Even with a multi-layered structure, the wiring work is not affected. By rotating the adjusting bolt, the spring's resistance to the stop pin can be adjusted, thereby adjusting the rotational friction between the turntable and the support plate. This ensures smooth rotation of the turntable while preventing excessively smooth rotation from interfering with the wiring work.

Description

Technical Field

[0001] This utility model relates to the field of support frame technology, specifically a novel multi-station frequency converter testing fixture. Background Technology

[0002] In the testing of frequency converters, especially small frequency converters, it is usually necessary to place the frequency converter on a support frame and then connect the wires for testing. Most of the current support frames are single-station or parallel dual-station structures, which means that the number of frequency converters that can be tested at one time is small, and it is impossible to achieve synchronous testing of multiple frequency converters. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a novel multi-station frequency converter testing fixture.

[0004] The technical solution of this utility model is as follows:

[0005] A novel multi-station inverter test fixture includes a main frame and multiple support modules mounted on it. Each support module includes multiple support mechanisms arranged linearly. The inverter can be placed on the support mechanism to complete the wiring test.

[0006] As the core technical concept of this utility model, the supporting mechanism includes a horizontally arranged supporting plate with a sleeve vertically arranged in the middle of its lower side, and an adjusting bolt spirally arranged on the outer ring of the sleeve. The supporting mechanism also includes a turntable with a rotating shaft vertically arranged in the middle of its lower side. The lower end of the rotating shaft vertically passes through the supporting plate and the sleeve and is provided with a stop pin. A spring is provided between the adjusting bolt and the stop pin. Based on the above structure, on the one hand, the frequency converter can be placed on the turntable and the wiring work on the front and rear sides can be realized by rotating it. Even if the tooling frame has a multi-layer structure, it will not affect the wiring work. On the other hand, by rotating the adjusting bolt, the clamping force of the spring on the stop pin can be adjusted, thereby adjusting the rotational friction between the turntable and the supporting plate. While ensuring that the turntable can rotate smoothly, it prevents the rotation from being too smooth and affecting the wiring work.

[0007] As described above, in a preferred embodiment of the novel multi-station inverter testing fixture, to ensure the stability of the inverter as it rotates with the turntable, a circular groove is provided in the middle of the upper side of the support plate, and the turntable is rotatably disposed in the groove, with its outer diameter matching the outer diameter of the groove.

[0008] As a further preferred embodiment, in order to ensure that the turntable can be smoothly driven to rotate by rotating the frequency converter, and to prevent the frequency converter from directly rubbing against the turntable and damaging the external structure of the turntable or the frequency converter, the upper side of the turntable is provided with an anti-slip rubber pad.

[0009] Preferably, in order to enable the frequency converter to be placed more smoothly on the turntable and to prevent interference with the turntable or anti-slip pad when the frequency converter is placed, the total thickness of the turntable and anti-slip pad is the same as the depth of the groove.

[0010] As described above, a novel multi-station inverter test fixture, in a preferred embodiment, includes two crossbars arranged at the front and rear to facilitate the disassembly, maintenance, or adjustment of the support mechanism, and the support plate is detachably placed on the crossbars.

[0011] As a further preferred embodiment, in order to ensure the stability of the connection between the support mechanism and the main frame, two baffles are provided on the lower side of the support plate, and the two baffles are respectively attached to the inner side of the two crossbars.

[0012] As described above, in order to avoid interference between the rotation of the turntable and the spring, that is, to prevent the spring's clamping action from affecting the rotation of the turntable, and at the same time to prevent the spring from being damaged due to torsional action when the turntable rotates, the stop pin is rotatably connected to the rotating shaft.

[0013] As described above, a novel multi-station inverter test fixture has an outwardly extending lever on the outer ring of the adjusting bolt to facilitate manual adjustment of the adjusting bolt.

[0014] The beneficial effects of this utility model are as follows: This utility model is a novel multi-station inverter testing fixture. The inverter can be placed on the turntable, and wiring work on the front and rear sides can be achieved by rotation. Even if the fixture has a multi-layer structure, it will not affect the wiring work. By rotating the adjusting bolt, the clamping force of the spring on the stop pin can be adjusted, thereby adjusting the rotational friction between the turntable and the support plate. While ensuring that the turntable can rotate smoothly, it prevents the rotation from being too smooth and affecting the wiring work. Attached Figure Description

[0015] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the tooling frame in the embodiment;

[0018] Figure 2 This is a schematic diagram of the supporting mechanism in the embodiment;

[0019] Figure 3 This is a cross-sectional view of the support mechanism in the embodiment;

[0020] The components represented by the various reference numerals in the diagram are:

[0021] 1. Main frame; 2. Supporting mechanism; 21. Support plate; 22. Sleeve; 23. Turntable; 24. Anti-slip pad; 25. Rotating shaft; 26. Stop pin; 27. Adjusting bolt; 271. Lever; 28. Spring; 29. ​​Baffle. Detailed Implementation

[0022] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0023] Example

[0024] This embodiment provides a novel multi-station frequency converter test fixture. (See attached image) Figure 1 The fixture includes a main frame 1 and a multi-layer support module on it. Each support module includes multiple support mechanisms 2 arranged linearly. The frequency converter can be placed on the support mechanism 2 to complete the wiring test. The structure of the fixture (the above-mentioned new type of multi-station frequency converter test fixture) is described in detail below with reference to the attached drawings.

[0025] In this embodiment, the core technical concept of this utility model is combined with Figure 2 and Figure 3 The supporting mechanism 2 includes a horizontally arranged supporting plate 21, with a sleeve 22 vertically arranged in the middle of its lower side. An adjusting bolt 27 is spirally arranged on the outer ring of the sleeve 22. The supporting mechanism 2 also includes a turntable 23, with a rotating shaft 25 vertically arranged in the middle of its lower side. The lower end of the rotating shaft 25 vertically passes through the supporting plate 21 and the sleeve 22 and is provided with a stop pin 26. There is a gap between the stop pin 26 and the lower end of the sleeve 22. A spring 28 is provided between the adjusting bolt 27 and the stop pin 26, and the spring 28 is sleeved on the sleeve 23. 2. On the basis of the above structure, the frequency converter can be placed on the turntable 23 and the wiring work on the front and rear sides can be realized by rotating it. Even if the tooling frame has a multi-layer structure, it will not affect the wiring work. On the other hand, by rotating the adjusting bolt 27, the clamping force of the spring 28 against the stop pin 26 can be adjusted, thereby adjusting the rotational friction between the turntable 23 and the support plate 21. While ensuring that the turntable 23 can rotate smoothly, it prevents the rotation from being too smooth and affecting the wiring work.

[0026] As a preferred embodiment, to facilitate the disassembly, maintenance or adjustment of the support mechanism 2, the main frame 1 includes two crossbars arranged at the front and rear, and the support plate 21 is detachably placed on the crossbars.

[0027] As a further preferred embodiment, in order to ensure the stability of the connection between the support mechanism 2 and the main frame 1, two baffles 29 are provided on the lower side of the support plate 21, and the two baffles 29 are respectively attached to the inner side of the two crossbars.

[0028] In this embodiment, as a preferred implementation, in order to avoid interference between the rotation of the turntable 23 and the spring 28, that is, to prevent the clamping action of the spring 28 from affecting the rotation of the turntable 23, and at the same time to prevent the spring 28 from being damaged due to torsional action when the turntable 23 rotates, the stop pin 26 is rotatably connected to the rotating shaft 25.

[0029] As a further preferred embodiment, to facilitate manual adjustment of the adjusting bolt 27, the outer ring of the adjusting bolt 27 is provided with an outwardly extending lever 271.

[0030] In this embodiment, as a preferred implementation, in order to ensure the stability of the frequency converter as it rotates with the turntable 23, a circular groove is provided in the middle of the upper side of the support plate 21, and the turntable 23 is rotatably disposed in the groove, with its outer diameter matching the outer diameter of the groove.

[0031] As a further preferred embodiment, in order to ensure that the frequency converter can smoothly drive the turntable 23 to rotate, and to prevent the frequency converter from directly rubbing against the turntable 23 and damaging the external structure of the turntable 23 or the frequency converter, the upper side of the turntable 23 is provided with an anti-slip pad 24.

[0032] Preferably, in order to enable the frequency converter to be placed more smoothly on the turntable 23 and to prevent interference with the turntable 23 or the anti-slip pad 24 when the frequency converter is placed, the total thickness of the turntable 23 and the anti-slip pad 24 is the same as the depth of the groove.

Claims

1. A novel multi-station frequency converter test tooling rack characterized by, It includes a main frame (1) and a multi-layer support module installed on it, each of which includes multiple support mechanisms (2) arranged in a linear fashion; The supporting mechanism (2) includes a horizontally arranged supporting plate (21), a sleeve (22) is vertically arranged in the middle of its lower side, and an adjusting bolt (27) is spirally arranged on the outer ring of the sleeve (22); The supporting mechanism (2) also includes a turntable (23), which has a rotating shaft (25) vertically arranged in the middle of its lower side. The lower end of the rotating shaft (25) passes vertically through the supporting plate (21) and the sleeve (22) and is provided with a stop pin (26). A spring (28) is provided between the adjusting bolt (27) and the stop pin (26).

2. The novel multi-station frequency converter test tooling rack of claim 1, wherein, The support plate (21) has a circular groove in the middle of its upper side, and the turntable (23) is rotatably disposed in the groove, with its outer diameter matching the outer diameter of the groove.

3. The novel multi-station frequency converter test tooling rack of claim 2, wherein, The turntable (23) is provided with an anti-slip pad (24) on its upper side.

4. The novel multi-station frequency converter test tooling rack of claim 3, wherein, The total thickness of the turntable (23) and the anti-slip pad (24) is the same as the depth of the groove.

5. The novel multi-station frequency converter test tooling rack of claim 1, wherein, The main frame (1) includes two crossbars arranged at the front and rear, and the support plate (21) is detachably placed on the crossbars.

6. The novel multi-station frequency converter test tooling rack of claim 5, wherein, The support plate (21) has two baffles (29) on its lower side, and the two baffles (29) are respectively attached to the inner side of the two crossbars.

7. The novel multi-station frequency converter test tooling rack of any one of claims 1-6, wherein, The stop pin (26) is rotatably connected to the rotating shaft (25).

8. The novel multi-station frequency converter test tooling rack of any one of claims 1-6, wherein, The outer ring of the adjusting bolt (27) is provided with an outwardly extending lever (271).

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