CN218099315U

CN218099315U - Mutual inductor detection by means of tool clamps

Info

Publication number: CN218099315U
Application number: CN202222233345.4U
Authority: CN
Inventors: 马丽; 霍利山; 郭海; 霍利岭
Original assignee: Ningbo Zhongke B Plus New Materials Technology Co ltd
Current assignee: Ningbo Zhongke B Plus New Materials Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-20
Anticipated expiration: 2032-08-24

Abstract

The utility model provides a frock clamp is used in mutual-inductor detection relates to mutual-inductor and detects technical field, include: the device comprises a fixed plate, a detection device and a detection device, wherein two elastic probes are arranged on the fixed plate in a penetrating manner and correspond to two welding pins of a mutual inductor to be detected; the fixture base is arranged below the fixed plate, and an accommodating space is formed in the fixture base; the accommodating space is internally provided with a supporting structure for supporting a mutual inductor to be detected and two welding feet of the mutual inductor, wherein the mutual inductor to be detected and the two welding feet are placed in the accommodating space, and each welding foot is correspondingly clamped between the supporting structure and the corresponding elastic probe. The beneficial effects are that to the design of the accommodation space of anchor clamps base, be convenient for the mutual-inductor put into anchor clamps base fast, closely with the elastic probe contact, improve detection accuracy, to the design of four corners of the accommodation space that the mutual-inductor body was placed, make the mutual-inductor of taking more convenient, realize the mass detection, improve detection efficiency greatly.

Description

Tool clamp for detecting mutual inductor

Technical Field

The utility model relates to a mutual-inductor detects technical field, especially relates to mutual-inductor detects uses frock clamp.

Background

The mutual inductor is also called instrument transformer, and is a general name of current mutual inductor and voltage mutual inductor. The high voltage or large current can be converted into the standard low voltage or standard small current in proportion, so as to realize the standardization and miniaturization of measuring instruments, protective equipment and automatic control equipment.

With the rapid development of industry, the demand of mutual inductors is increasing continuously, and mutual inductors with different forms appear in order to meet different application scenes. In order to ensure the production quality and subsequent working performance of the mutual inductor, the mutual inductor needs to be detected before leaving a factory.

At present, most of mutual inductors are placed on some temporarily-built detection tables, then the positions of the mutual inductors are fixed by heavy objects or other objects, the mutual inductors are easy to move in the detection process, and the fixing effect is poor. The utility model also has the frock clamp that fixed effect is better mutual-inductor detection was used in the market, but the structure is comparatively complicated, lacks simple structure's frock clamp.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a frock clamp is used in mutual-inductor detection, include:

the fixed plate is provided with two elastic probes in a penetrating way and corresponds to two welding pins of a mutual inductor to be detected;

the fixture base is arranged below the fixed plate, and an accommodating space is formed in the fixture base;

the accommodating space is internally provided with a supporting structure for supporting a mutual inductor to be detected and two welding feet of the mutual inductor, wherein the mutual inductor to be detected and the two welding feet are placed in the accommodating space, and each welding foot is correspondingly clamped between the supporting structure and the corresponding elastic probe.

Preferably, the fixing plate is an L-shaped fixing plate.

Preferably, two elastic probes penetrate through the bottom surface of the L-shaped fixing plate, and a plurality of first fixing holes are formed in the side surface of the L-shaped fixing plate.

Preferably, the elastic probe includes:

the probe penetrates through the fixing plate, one end of the probe extends out of the upper surface of the fixing plate and is in threaded connection with a nut, and the other end of the probe extends out of the lower surface of the fixing plate and is sleeved with a spring;

the contact piece is arranged at one end of the spring, which is far away from the fixed plate.

Preferably, a plurality of second fixing holes are formed in the clamp base.

Preferably, the support structure comprises:

the supporting table is arranged in the accommodating space, three side surfaces of the supporting table are attached to the inner wall of the accommodating space, two first U-shaped grooves are formed in the top surface of the supporting table in parallel, and a supporting plate is arranged in each first U-shaped groove to support the two welding pins respectively;

the two bosses respectively face the opening directions of the two first U-shaped grooves and are symmetrically arranged on two sides of the inner wall of the accommodating space, each boss is connected with the opening of the first U-shaped groove through a first circular hole communicated with the accommodating space, and a second circular hole corresponding to the first circular hole is formed in one side, away from the first circular hole, of each boss of the accommodating space;

the top surface of the supporting platform is lower than the upper surface of the clamp base, and a second U-shaped groove which encloses the supporting platform and the two bosses is formed in the accommodating space.

Preferably, the depth of the boss is lower than that of the first U-shaped groove, and the width of the boss is smaller than that of the first U-shaped groove.

Preferably, the distance between the two bosses is matched with the minimum width of the mutual inductor.

Preferably, the size of the support plate is not smaller than the size of the soldering foot of the transformer.

Preferably, the work fixture is made of an insulating material.

The technical scheme has the following advantages or beneficial effects:

1) Due to the design of the accommodating space of the clamp base, the mutual inductor can be conveniently and quickly placed into the clamp base and is tightly contacted with the elastic probe, so that the detection accuracy is improved;

2) The design of four corners of the accommodating space for accommodating the mutual inductor body enables the mutual inductor to be more convenient to take;

3) The problem of when the mutual inductor is detected difficult fixed, consume time long is solved, utilize this kind of frock clamp to realize the batched detection, improve detection efficiency greatly.

Drawings

Fig. 1 is a schematic structural view of a tool clamp for detecting a mutual inductor according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of an L-shaped fixing plate according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a fixture base according to a preferred embodiment of the present invention;

fig. 4 is a top view of the fixture base with the transformer placed thereon according to the preferred embodiment of the present invention;

in the attached drawings, 1, a fixing plate; 11. a first fixing hole; 12. a through hole; 2. an elastic probe; 21. A probe; 22. a nut; 23. a spring; 24. a contact member; 3. a clamp base; 31. an accommodating space; 311. a first U-shaped groove; 312. a support plate; 313. a boss; 314. a first circular hole; 315. a second circular hole; 316. a second U-shaped groove; 32. a second fixing hole; 4. A transformer; 41. and (6) welding the feet.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as the gist of the present invention is satisfied.

The present invention provides, in a preferred embodiment, a tooling clamp for detecting a transformer based on the above problems in the prior art, as shown in fig. 1 to 4, including:

the device comprises a fixed plate 1, wherein two elastic probes 2 are arranged on the fixed plate 1 in a penetrating manner and correspond to two welding pins 41 of a mutual inductor 4 to be detected;

the clamp base 3 is arranged below the fixed plate 1, and an accommodating space 31 is formed in the clamp base 3;

a supporting structure is arranged in the accommodating space 31 for supporting a mutual inductor 4 to be detected and two welding pins 41 of the mutual inductor which are placed in the accommodating space 31, and each welding pin 41 is correspondingly clamped between the supporting structure and the corresponding elastic probe 2.

Specifically, in the present embodiment, the fixing plate 1 and the fixture base 3 are two independent structures, and when the mutual inductor 4 is detected, the two structures are used in cooperation with each other. Before the mutual inductor 4 is detected, the clamp base 3 can be horizontally fixed on an external workbench, and the fixing plate 1 is fixed above the clamp base 3. Preferably, the fixture base 3 is provided with a plurality of second fixing holes 32, and the second fixing holes 32 are symmetrically arranged, so that the fixture base 3 is stably fixed on the workbench in the horizontal direction.

In the preferred embodiment of the present invention, the fixing plate 1 is an L-shaped fixing plate, two elastic probes 2 are disposed on the bottom surface of the L-shaped fixing plate, and a plurality of first fixing holes 11 are disposed on the side surface of the fixing plate 1.

Specifically, in this embodiment, the first fixing holes 11 may be symmetrically arranged, the fixing plate 1 may be fixed on an external workbench that is movable in the vertical direction through the first fixing holes 11, the fixing plate 1 may be fixed more firmly by providing a plurality of first fixing holes 11, the workbench may be driven by an existing driving motor to automatically move in the vertical direction to adjust the distance between the fixing plate 1 and the clamp base 3, and the workbench may also be a manually controlled device, which is not limited herein. The bottom surface of the fixing plate 1 is provided with two through holes 12, and the two elastic probes 2 correspondingly penetrate through the two through holes 12.

Further specifically, before carrying out mutual-inductor 4 and detecting, the workstation that can control vertical direction removal upwards removes to drive fixed plate 1 and upwards remove to have sufficient interval between 3 with anchor clamps base to make there is sufficient space to place mutual-inductor 4, place mutual-inductor 4 on anchor clamps base 3 after, mutual-inductor 4 falls into corresponding accommodation space 31, and supports through bearing structure. The workstation that can control vertical direction removal afterwards moves down in order to drive fixed plate 1 and move down to two elastic probe 2 lower extreme contacts and compress tightly two welding foot 41 of mutual-inductor 4 for mutual-inductor 4 stably places, can carry out mutual-inductor 4 afterwards and detect.

In a preferred embodiment of the present invention, the elastic probe 2 includes:

the probe 21 penetrates through the fixing plate 1, one end of the probe 21 extends out of the upper surface of the fixing plate 1 and is in threaded connection with a nut 22, and the other end of the probe 21 extends out of the lower surface of the fixing plate 1 and is sleeved with a spring 23;

and a contact 24 provided at one end of the spring 23 remote from the fixed plate 1.

Specifically, in this embodiment, the internal thread of the nut 22 is matched with the external thread of the probe 21. The spring 23 is sized to fit the lower end of the probe 21.

The bottom of the contact member 24 presses the welding leg of the transformer so that it does not move.

In a preferred embodiment of the present invention, the supporting structure comprises:

a supporting table, which is disposed in the accommodating space 31, three side surfaces of the supporting table are attached to the inner wall of the accommodating space 31, two first U-shaped grooves 311 are disposed in parallel on the top surface of the supporting table, and a supporting plate 312 is disposed in each first U-shaped groove 311 to support two welding pins 41;

the two bosses 313 face the opening directions of the two first U-shaped grooves 311 respectively and are symmetrically arranged on two sides of the inner wall of the accommodating space 31, each boss 313 is connected with the opening of the first U-shaped groove 311 through a first circular hole 314 communicated with the accommodating space 31, and a second circular hole 315 corresponding to the first circular hole is arranged on one side, far away from the first circular hole 314, of the accommodating space 31, which is located on each boss 313;

the top surface of the supporting platform is lower than the upper surface of the fixture base 3, and a second U-shaped groove 316 enclosing the supporting platform and the two bosses 313 is formed in the accommodating space 31.

Specifically, in this embodiment, the whole body of the transformer 4 to be detected is of a rectangular structure and is placed inside the accommodating space 31, and the first U-shaped groove 311, the two bosses 313 and the second U-shaped groove 316 are designed according to the shape of the transformer 4 to be detected, so that the transformer is more attached to the accommodating space 31, and therefore, the transformer cannot move. The size of the supporting plate 312 for supporting the two welding feet 41 of the mutual inductor 4 to be tested is smaller than that of the first U-shaped groove. Consider that mutual-inductor 4 body portion is whole generally and is rectangular structure and four angles and is the right angle, when the design through first circular port 314 and second circular port 315 made mutual-inductor 4 body portion that waits to detect place in accommodation space 31, four right angles just correspond the position that falls into two first circular ports 314 and two second circular ports 315, more conveniently take in accommodation space 31.

Preferably, the depth of the boss 313 is less than that of the first U-shaped groove 311, and the width of the boss 313 is less than that of the first U-shaped groove 311.

Preferably, the distance between the two bosses 313 is matched with the minimum width of the transformer 4, so that the body of the transformer 4 is just clamped into the accommodating space 31, and the body of the transformer 4 cannot fall between the two bosses 313.

Preferably, the size of the supporting plate 312 is not smaller than the size of the soldering terminal of the transformer 4, and the soldering terminal 41 of the transformer 4 to be tested can be stably placed on the supporting plate 312.

Fig. 4 is only as an embodiment, and in actual operation, treat the shape of the mutual inductor 4 that detects and do not limit, only need two welding feet 41 of the mutual inductor 4 that detect to place respectively on two backup pads 312, mutual inductor 4 body portion can be placed in accommodation space 31, and four right angles of mutual inductor 4 body portion just correspond the position that falls into two first circular ports 314 and two second circular ports 315, more conveniently take in accommodation space 31.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and it should be understood that all modifications and obvious variations of the present invention as described and illustrated herein are included within the scope of the present invention.

Claims

1. The utility model provides a mutual-inductor detects uses frock clamp which characterized in that includes:

2. The tool clamp for detecting the mutual inductor according to claim 1, wherein the fixing plate is an L-shaped fixing plate.

3. The tool clamp for detecting the mutual inductor according to claim 2, wherein two elastic probes are arranged on the bottom surface of the L-shaped fixing plate in a penetrating mode, and a plurality of first fixing holes are formed in the side surface of the L-shaped fixing plate.

4. The tool clamp for detecting the mutual inductor according to claim 1, wherein the elastic probe comprises:

5. The tool clamp for detecting the mutual inductor according to claim 1, wherein a plurality of second fixing holes are formed in the clamp base.

6. The tool clamp for detecting the mutual inductor according to claim 1, wherein the supporting structure comprises:

7. The tool clamp for detecting the mutual inductor according to claim 6, wherein the depth of the boss is lower than that of the first U-shaped groove, and the width of the boss is smaller than that of the first U-shaped groove.

8. The tool clamp for detecting the mutual inductor according to claim 6, wherein the distance between the two bosses is matched with the minimum width of the mutual inductor.

9. The tool clamp for detecting the mutual inductor according to claim 6, wherein the size of the supporting plate is not smaller than that of the welding feet of the mutual inductor.

10. The tool clamp for detecting the mutual inductor according to claim 1, wherein the tool clamp is made of an insulating material.