CN219266365U - Single-control multi-connection test fixture - Google Patents

Abstract

The utility model relates to the technical field of test fixtures and discloses a single-control multi-connection test fixture which comprises four main components, namely an electric fixture, a pedal control box, a control cable and a copper bar, wherein the pedal control box is connected to three groups of electric fixtures through the control cable, the three groups of electric fixtures are locked on the copper bar through movable clamping pieces, and the pedal control box is controlled to realize synchronous short-circuiting operation of three-phase external terminals of a transformer. According to the single-control multi-connection test fixture, the clamping part is made of the wear-resistant material, so that the service life is prolonged, the purchase cost of conventional consumable materials is reduced, the whole device can be operated by a single person, the short circuit of the three-phase terminals of the transformer can be synchronously carried out, the labor cost is reduced, the test operation time is shortened, the whole operation process is simple and convenient in steps, the test efficiency is high, and the single-control multi-connection test fixture is suitable for different working conditions and brings better use prospects.

Description

Single-control multi-connection test fixture

Technical Field

The utility model relates to the technical field of test fixtures, in particular to a single-control multi-connection test fixture.

Background

The content of the research required by the product development of the project is mainly as follows: when the transformer load loss and short-circuit impedance measurement test is carried out, three wiring terminals of the transformer are required to be short-circuited, and at present, the short-circuit mode mainly comprises two modes, namely, the short-circuit connection is carried out in a bolt fastening mode, and the short-circuit connection is carried out in a G-type clamping mode. By adopting a bolt fastening mode, a plurality of bolts are required to be installed, and the actual operation is time-consuming; the mode of clamping the G-shaped clamp is limited by the fact that no special clamp aiming at the application is available in the market at present, only a general G-shaped clamp can be adopted, and when the clamp is used for a test, the clamp can be easily damaged due to quality problems, meanwhile, in the operation process, one person is required to support the short circuit piece, one person is required to lock the G-shaped clamp, and two persons are matched.

Therefore, the technical problems of time consumption, easy damage and multiple persons exist, and therefore, a single-control multi-connection test fixture is provided.

Disclosure of Invention

The utility model mainly aims to provide a single-control multi-connection test fixture which can effectively solve the problems of time consumption, easy damage and multiple persons in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a single accuse multiple test fixture, includes four main parts of electronic anchor clamps, foot control box, control cable, copper bar, and foot control box passes through control cable to be connected on three electronic anchor clamps of group, and three electronic anchor clamps of group are locked on the copper bar through movable fastening piece, control foot control box realizes the synchronous short circuit operation of transformer three-phase external terminal.

As a preferable scheme of the single control multiple test fixture, the utility model comprises the following steps: the electric clamp comprises three groups of electric clamp components with the same structure, wherein a clamp shell surrounds the periphery of a driving and transmission component, the driving component is composed of a driving motor, a heat dissipation hole is formed in the tail portion of the clamp shell and is used for ventilation and heat dissipation during operation of the driving motor, a torque adapter is arranged at the front end of the driving motor, a sleeve is arranged at the front end of the torque adapter and is matched with an ejector rod for use, and a supporting piece is used as a fixing foundation of the whole electric clamp.

As a preferable scheme of the single control multiple test fixture, the utility model comprises the following steps: the clamping piece is connected to the supporting piece through four screw rods, the movable clamping piece is located on the four screw rods and is matched with the clamping piece to lock the copper bar, the position of the three groups of electric clamps fixed on the copper bar is freely adjustable, the supporting piece is provided with a limit switch, and when the ejector rod retracts, the shell wall of the clamp shell is provided with a control cable interface A.

As a preferable scheme of the single control multiple test fixture, the utility model comprises the following steps: the control part comprises a pedal control box, two control pedals are arranged at the top of the pedal control box shell, a charging power supply interface and a control cable interface B are arranged at the front side of the pedal control box shell, and the control cable interface B is connected with the control cable interface A through a control cable to control the electric clamp.

As a preferable scheme of the single control multiple test fixture, the utility model comprises the following steps: the bottom of the pedal control box shell is provided with a charging adapter, a battery pack and a control assembly, the charging adapter is connected between a charging power interface and the battery pack to form an energy storage and supply unit, and the control assembly is electrically connected with the battery pack, a control pedal and a control cable interface B.

As a preferable scheme of the single control multiple test fixture, the utility model comprises the following steps: the electric clamps and the pedal control box are electrically connected through the control cable, the three groups of electric clamps with the same structure can be connected in parallel, and after the pedal control box sends a control instruction, the three groups of electric clamps synchronously act, and the electric clamps clamp and lock the copper bar and the external terminal of the transformer together.

Compared with the prior art, the single-control multi-connection test fixture provided by the utility model has the following remarkable improvements and advantages:

this singly control ally oneself with test fixture more, the clamping part adopts wear-resisting material to improve life, has reduced conventional consumptive material purchase cost, and whole device can be operated by single, and transformer three-phase terminal short circuit can go on in step, has reduced the cost of labor, has shortened experimental operating time, and whole operation process step is simple and convenient, and test efficiency is high.

The whole fixture is simple in design, convenient to operate, and capable of meeting practical use standards, reducing production cost, improving working efficiency, and achieving better use effect compared with the traditional mode.

Drawings

FIG. 1 is a schematic overall appearance of a single control multiple test fixture;

FIG. 2 is a schematic diagram of a group of electric clamps in a single control multiple test clamp;

FIG. 3 is a schematic structural view of a foot operated control box in a single control multiple test fixture.

In the figure: 1. an electric clamp; 2. a foot control box; 3. a control cable; 4. a copper bar; 5. an external terminal of the transformer; 6. a clamp housing; 7. a heat radiation hole; 8. a driving motor; 9. a torque adapter; 10. a sleeve; 11. a push rod; 12. a support member; 13. a clamping piece; 14. a movable grip; 15. a limit switch; 16. a control cable interface A; 17. a foot control box housing; 18. controlling the pedal; 19. a charging power interface; 20. a control cable interface B; 21. a charging adapter; 22. a battery pack; 23. and a control assembly.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in figures 1-3, the single-control multi-connection test fixture comprises four main components, namely an electric fixture 1, a foot control box 2, a control cable 3 and a copper bar 4.

Specifically, the foot control box 2 is connected to the three groups of electric clamps 1 through the control cable 3, the three groups of electric clamps 1 are locked on the copper bar 4 through the movable clamping piece 14, and the foot control box 2 is controlled to realize synchronous short-circuiting operation of the three-phase external terminals 5 of the transformer.

Further, there are three sets of identical electric clamp 1 components, wherein the clamp housing 6 surrounds the drive and transmission components for equipment and personnel protection.

Further, the driving part is composed of a driving motor 8, a heat dissipation hole 7 is arranged at the tail part of the clamp shell 6 for ventilation and heat dissipation during the operation of the driving motor 8,

in this embodiment, the torque adapter 9 is installed in the front end of the driving motor 8, and is used for maintaining constant torque during the locking action of the test fixture, and the front end of the torque adapter 9 is provided with the sleeve 10, and the telescopic movement of the ejector rod 11 can be realized by matching with the ejector rod 11.

In this embodiment, the supporting member 12 is used as a fixing base of the whole electric fixture 1, the driving part and the clamping part are connected to the supporting member 12, the clamping member 13 is connected to the supporting member 12 through four screw rods, the distance is freely adjustable, the movable clamping member 14 is located on the four screw rods, the copper bar 4 is locked by matching with the clamping member 13, and the positions of the three groups of electric fixtures 1 fixed on the copper bar 4 are freely adjustable.

In this embodiment, the support member 12 is provided with the limit switch 15, and when the ejector rod 11 retracts, the protection function of bottom detection and limit position is achieved, and the control cable interface A16 is installed on the wall of the clamp housing 6, so that the parallel control wiring function can be realized.

Further, the control part is composed of a pedal control box 2, and two control pedals 18 are arranged at the top of a pedal control box shell 17 and used for controlling the elastic action of the electric clamp 1.

Further, a charging power interface 19 and a control cable interface B20 are installed on the front side of the pedal control box housing 17, the charging power interface 19 is connected with an external power AC220V, and the control cable interface B20 is connected with the control cable interface a through a control cable 3, so that control of the electric clamp 1 is achieved.

Specifically, the bottom of the foot control box housing 17 is provided with a charging adapter 21, a battery pack 22 and a control assembly 23.

In this embodiment, the charging adapter 21 is connected between the charging power interface 19 and the battery pack 22 to form an energy storage and supply unit, and the control assembly 23 is electrically connected with the battery pack 22, the control pedal 18 and the control cable interface B20 for implementing the test fixture control logic instruction.

Further, the electric clamp 1 and the foot control box 2 are electrically connected through the control cable 3, and three groups of electric clamps 1 with the same structure can be connected in parallel.

Further, after the foot control box 2 sends out a control command, the three groups of electric clamps 1 act synchronously. The electric clamp 1 clamps and locks the copper bar 4 and the external terminal 5 of the transformer together, so as to realize the short-circuit wiring operation of the load test of the transformer.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A single control multi-connection test fixture is characterized in that: including four main parts of electronic anchor clamps (1), pedal control box (2), control cable (3), copper bar (4), pedal control box (2) are connected on three electronic anchor clamps (1) of group through control cable (3), and three electronic anchor clamps (1) of group are locked on copper bar (4) through movable fastener (14), control pedal control box (2) realize the synchronous short circuit operation of transformer three-phase external terminal (5).

2. The single control multiple test fixture of claim 1, wherein: the electric clamp (1) component with the same three groups of structures is arranged, wherein the clamp shell (6) surrounds the periphery of the driving and transmission component, the driving component is composed of a driving motor (8), a radiating hole (7) is formed in the tail of the clamp shell (6) and used for ventilation and heat radiation during operation of the driving motor (8), a torque adapter (9) is arranged at the front end of the driving motor (8), a sleeve (10) is arranged at the front end of the torque adapter (9), a supporting piece (12) is matched with an ejector rod (11) to be used, a clamping piece (13) is connected onto the supporting piece (12) through four screw rods, a movable clamping piece (14) is positioned on the four screw rods, a copper bar (4) is locked by matching with a clamping piece (13), the positions of the three groups of electric clamps (1) fixed onto the copper bar (4) are freely adjustable, a limit switch (15) is arranged on the supporting piece (12), and a control cable interface A (16) is arranged on the shell wall of the clamp shell (6) when the ejector rod (11) is retracted.

3. The single control multiple test fixture of claim 1, wherein: the control part comprises pedal control box (2), two control foot pedals (18) are installed at pedal control box shell (17) top, charging power supply interface (19) and control cable interface B (20) are installed at pedal control box shell (17) front side, control cable interface B (20) are connected with control cable interface A through control cable (3), realize the control to electric fixture (1), charging adapter (21), group battery (22) and control module (23) are equipped with to pedal control box shell (17) bottom, charging adapter (21) are connected between charging power supply interface (19) and group battery (22), constitute energy storage, energy supply unit, control module (23) all have electric connection with group battery (22), control foot pedals (18), control cable interface B (20).

4. The single control multiple test fixture of claim 1, wherein: the electric clamp (1) and the pedal control box (2) are electrically connected through the control cable (3), the three groups of electric clamps (1) with the same structure can be connected in parallel, and after the pedal control box (2) sends a control instruction, the three groups of electric clamps (1) synchronously act, and the electric clamps (1) clamp and lock the copper bar (4) and the external terminal (5) of the transformer together.

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