CN210894619U

CN210894619U - Switch electrical performance testing device

Info

Publication number: CN210894619U
Application number: CN201921744154.6U
Authority: CN
Inventors: 蔡智勇; 徐育福; 汪彩红
Original assignee: Fujian Zhida Lisheng Power Technology Co ltd
Current assignee: Fujian Zhida Lisheng Power Technology Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-06-30
Anticipated expiration: 2029-10-17

Abstract

The utility model relates to a switch test technical field discloses a switch electrical property testing arrangement, which comprises an outer shell, the shell body is inside to be equipped with the workstation, be equipped with the first anchor clamps that are used for the clamping plug and be used for the second anchor clamps of clamping socket on the workstation, it has first intercommunication groove, second intercommunication groove and third intercommunication groove to open on the workstation, the bottom of workstation is equipped with drive assembly, drive assembly is used for driving first anchor clamps and is the straight line repetitive motion along first intercommunication groove, drive assembly includes first motor, first lead screw and cylinder, be equipped with first lead screw nut and first link block on the first lead screw, first link block top surface upwards passes first intercommunication groove, be equipped with first placing plate on the top surface of first link block, the cylinder is established on first placing plate, the tailpiece of the piston rod of cylinder and first anchor clamps fixed connection are in the same place; the utility model has the characteristics of survey numerical value accuracy height, the practicality is good.

Description

Switch electrical performance testing device

Technical Field

The utility model relates to a switch test equipment technical field, concretely relates to switch electrical performance testing arrangement.

Background

The switch is a common plug connector in our daily life, and most switches in the prior art comprise a common plug and a common socket, wherein the plug generally refers to a non-fixed part; the electrical performance between the plug and the socket is related to whether the plug, the socket and the converter can be safely used or not and whether the universal interchangeability requirement is met or not so as to avoid an important technical requirement of error insertion, the unqualified electrical performance of the plug and the socket can influence the use of a user or generate hidden dangers of poor contact, error insertion and the like, equipment is damaged if the electrical performance is unqualified, and fire and electric shock accidents can be generated if the electrical performance is serious.

In the prior art, in order to avoid such situations, before the plug and the socket leave a factory, a breaking capacity test procedure needs to be performed on the plug and the socket so as to test the electrical performance of the plug and the socket; at present, when a plug and a socket are subjected to disjunction capacity testing, most of the tested plugs are driven to move by using an air cylinder or a lead screw, so that the plugs and the sockets are plugged together to realize the testing, but the problems of uncontrollable plugging stroke, plugging speed and plugging force between the plugs and the sockets exist by using the air cylinder as a driving source, the testing cannot adapt to the testing of the electrical performance of switches with different specifications, the plugging stroke, the plugging speed and the plugging force can be well controlled by using the lead screw as the driving source to ensure the obtained numerical value precision, but the plugging speed and the plugging force of the lead screw as the driving source are mostly smaller and cannot be rapidly accelerated due to the fact that a process is required for accelerating a motor, the tested numerical value coverage range is smaller, a certain numerical value blind area exists, and the electrical performance of the plugs and the sockets during plugging under the conditions of higher speed and higher force cannot be tested on the premise of ensuring the, there are certain limitations.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a switch electrical property testing arrangement.

In order to solve the technical problem, the technical scheme of the utility model is that: a switch electrical performance testing device comprises an outer shell, wherein a workbench is arranged in the outer shell, a first clamp for clamping a plug and a second clamp for clamping a socket are arranged on the workbench, a first communicating groove, a second communicating groove and a third communicating groove are formed in the workbench, the second communicating groove and the third communicating groove are symmetrically formed in the workbench, and the first communicating groove and the second communicating groove or the third communicating groove are vertically formed; the first clamp is arranged on the first communicating groove, and the second clamp is arranged on the second communicating groove and the third communicating groove; the bottom of the workbench is provided with a driving assembly, the driving assembly is used for driving the first clamp to do linear reciprocating motion along the first connecting groove, the driving assembly comprises a first motor, a first lead screw and a cylinder, the first motor is arranged below the workbench, the first lead screw is arranged right below the first connecting groove, and first lead screw one end and the main shaft fixed connection of first motor, the other end rotates to be connected on the first fixed plate that the workstation below was equipped with, be equipped with first screw nut and first linkage block on the first lead screw, first screw nut and first lead screw spiro union, first linkage block and first lead screw sliding connection just with first screw nut fixed connection together, first linkage block top surface upwards passes first intercommunication groove, be equipped with the first board of placing on the top surface of first linkage block, the cylinder is established on the first board of placing, the tailpiece of the piston rod of cylinder is in the same place with first anchor clamps fixed connection.

Preferably, first anchor clamps include first splint, second splint and clamping screw, and the rear end face of first splint is in the same place with the piston rod end fixed connection of cylinder, and first splint top is located to the second splint, and clamping screw vertically link up first splint and second splint downwards in proper order, and be in the same place with first splint and second splint spiro union respectively.

Preferably, both sides of the first connecting groove are provided with first sliding rails, a first sliding groove is formed in the bottom surface of the first placing plate, and the first sliding rails are connected with the first sliding groove in a sliding mode.

Preferably, be equipped with first support column and second in the shell body and place the board, first support column is vertical upwards to be set up inside the shell body, and the bottom surface is in the same place with the bottom inner wall fixed connection of shell body, and the second is placed board fixed connection on the top surface of first support column, and on the second was located the top surface of board to first motor, it had the observation window to open on the preceding terminal surface of shell body, is equipped with the controller on the lateral wall.

Preferably, the bottom surface of the workbench is provided with support legs, one ends of the support legs are fixedly connected with the bottom surface of the workbench, and the other ends of the support legs are fixedly connected with the inner wall of the bottom of the outer shell.

Preferably, the second fixture comprises a second motor and a second lead screw, the second motor is arranged below the workbench, the second lead screw is arranged under the second communicating groove and the third communicating groove, one end of the second lead screw is fixedly connected with a main shaft of the second motor, the other end of the second lead screw is rotatably connected with a second fixing plate arranged below the workbench, a second lead screw nut and a third lead screw nut are screwed on the second lead screw, the screwing direction of the second lead screw nut and the third lead screw nut is reverse, a second connecting block and a third connecting block are slidably connected on the second lead screw, the second connecting block is fixedly connected with the second lead screw nut, the third connecting block is fixedly connected with the third lead screw nut, the top surface of the second connecting block upwards passes through the second communicating groove, a first clamping block is fixedly connected on the top surface of the second connecting block, and the top surface of the third connecting block upwards passes through the third communicating groove, the top surface of the third connecting block is fixedly connected with a second clamping block.

Preferably, an arc-shaped first clamping part is arranged on the first clamping block, an arc-shaped second clamping part is arranged on the second clamping block, and the first clamping part and the second clamping part are respectively arranged on the opposite surfaces of the first clamping block and the second clamping block.

Preferably, both sides of the second communicating groove are provided with second slide rails, the bottom surface of the first clamping block is provided with a second slide groove, the second slide rails are connected with the second slide groove in a sliding manner, both sides of the third communicating groove are provided with third slide rails, the bottom surface of the second clamping block is provided with a third slide groove, and the third slide rails are connected with the third slide groove in a sliding manner.

Preferably, the inside second support column and the third of still being equipped with of shell body place the board, the vertical upwards setting of second support column is inside the shell body, and the bottom surface and the inside fixed connection in bottom of shell body are in the same place, and the board fixed connection is placed on the top surface of second support column to the third, and the second motor is located on the top surface that the board was placed to the third.

Compare prior art, the utility model has the advantages that:

the utility model discloses based on the use cylinder or lead screw that exists among the prior art as the drive unit, can't test out the electric property when plug and socket are inserted and pulled under great speed and great dynamics under the prerequisite of guaranteeing numerical value precision, there is the problem of certain limitation, through setting up first motor, first lead screw and cylinder, first lead screw is connected with first motor main shaft, and set up first lead screw nut and first connecting block on first lead screw, make first lead screw nut and first connecting block can do horizontal linear motion along first lead screw when rotating, set up first place the board on first connecting block top surface, set up the cylinder on first place the board, and will be used for the first anchor clamps fixed connection of clamping plug on the piston rod end of cylinder, when testing the numerical value of plug speed and dynamics, through controlling first motor and rotating, drive first lead screw nut and first connecting block to do linear motion along first lead screw, thereby drive first place the board, cylinder and second anchor clamps move, make the plug of clamping on first anchor clamps carry out with the plug motion of the socket of clamping on the second anchor clamps, when the numerical value of test plug speed and dynamics is great, earlier through controlling first motor and rotating, drive first anchor clamps to suitable position after, control cylinder begins work, the tailpiece of the piston rod carries out piston motion, the cylinder can make the quick motion that carries out of first anchor clamps, make the plug of clamping on first anchor clamps and the socket of clamping on the second anchor clamps receive plug speed and dynamics when carrying out the plug motion be greater than the plug motion that uses first lead screw to drive plug and socket to carry out, the scope value that makes the survey is wider, very big reduction numerical blind area, the accuracy of the result that has guaranteed the experiment and records, and has very good practicality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic external structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an external elevation view of the present invention;

FIG. 4 is an internal side view of the present invention;

fig. 5 is a top view of the interior of the present invention;

FIG. 6 is an enlarged view at A;

FIG. 7 is an enlarged view at B;

fig. 8 is an enlarged view at C.

Reference numerals: 1. an outer housing; 2. a work table; 3. a first connecting groove; 4. a second communicating groove; 5. a third communicating groove; 6. a first motor; 7. a first lead screw; 8. a cylinder; 9. a first fixing plate; 10. a first lead screw nut; 11. a first connection block; 12. a first placing plate; 13. a first splint; 14. a second splint; 15. a clamping screw; 16. a first slide rail; 17. a first chute; 18. a first support column; 19. a second placing plate; 20. an observation window; 21. a controller; 22. a support leg; 23. a second motor; 24. a second lead screw; 25. a second fixing plate; 26. a second lead screw nut; 27. a third lead screw nut; 28. a second connecting block; 29. a third connecting block; 30. a first clamping block; 31. a second clamp block; 32. a first clamping portion; 33. a second clamping portion; 34. a second slide rail; 35. a second chute; 36. a third slide rail; 37. a third chute; 38. a second support column; 39. and a third placing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to 8, the present embodiment provides a switch electrical performance testing apparatus, including an outer casing 1, a workbench 2 is disposed inside the outer casing 1, an observation window 20 is opened on a front end surface of the outer casing 1, the observation window 20 is used for an operator to visually observe conditions inside the outer casing 1, a controller 21 is disposed on a side wall of the outer casing 1, and the controller 21 is used for recording measured data when a plug and a socket perform a breaking capacity testing procedure; a first clamp for clamping a plug and a second clamp for clamping a socket are arranged on the workbench 2, a first communicating groove 3, a second communicating groove 4 and a third communicating groove 5 are formed in the workbench 2, the second communicating groove 4 and the third communicating groove 5 are symmetrically arranged on the workbench 2, the first communicating groove 3 and the second communicating groove 4 or the third communicating groove 5 are vertically arranged, and in the embodiment, the first communicating groove 3 is located in the middle position of the second communicating groove 4 and the second communicating groove 4; the first clamp is arranged on the first communicating groove 3, and the second clamp is arranged on the second communicating groove 4 and the third communicating groove 5; the bottom of the workbench 2 is provided with a driving assembly, the driving assembly is used for driving the first fixture to do linear reciprocating motion along the first connecting groove 3, the driving assembly comprises a first motor 6, a first lead screw 7 and a cylinder 8, the first motor 6 is arranged below the workbench 2, the first lead screw 7 is arranged right below the first connecting groove 3, one end of the first lead screw 7 is fixedly connected with a main shaft of the first motor 6, the other end of the first lead screw is rotatably connected on a first fixing plate 9 arranged below the workbench 2, the first lead screw 7 is provided with a first lead screw nut 10 and a first connecting block 11, the first lead screw nut 10 is in threaded connection with the first lead screw 7, the first connecting block 11 is in sliding connection with the first lead screw 7 and is fixedly connected with the first lead screw nut 10, the top surface of the first connecting block 11 upwards passes through the first connecting groove 3, the top surface of the first connecting block 11 is provided with a first placing plate 12, the cylinder 8 is fixedly connected on the first placing plate 12, the piston rod end of the cylinder 8 is fixedly connected with the first clamp; be equipped with stabilizer blade 22 on the bottom surface of workstation 2, stabilizer blade 22 one end is in the same place with 2 bottom surfaces fixed connection of workstation, and the other end is in the same place with the bottom inner wall fixed connection of shell body 1, and stabilizer blade 22 is used for supporting workstation 2, and in this embodiment, the quantity of stabilizer blade 22 is 4, and it has 1 to equally divide cloth to lean on the apex angle position at workstation 2.

Further, first anchor clamps include first splint 13, second splint 14 and clamping screw 15, the rear end face of first splint 13 is in the same place with the piston rod end fixed connection of cylinder 8, first splint 13 top is located to second splint 14, clamping screw 15 vertically link up first splint 13 and second splint 14 downwards in proper order, and respectively with first splint 13 and the 14 spiro union of second splint together, when needs carry out the clamping to the plug, put into the plug to between first splint 13 and the second splint 14, later rotatory clamping screw 15, make clamping screw 15 do vertical downstream, with this drive second splint 14 to pressing close to the motion of first splint 13 direction, thereby press from both sides tightly the plug that is in between first splint 13 and the second splint 14.

Further, two sides of the first connecting groove 3 are both provided with first slide rails 16, in this embodiment, the first slide rails 16 are symmetrically arranged on two sides of the first connecting groove 3; first spout 17 is opened on the bottom surface of first board 12 of placing, and the position distribution and the shape size of first spout 17 suit with first slide rail 16, satisfy first slide rail 16 and first spout 17 sliding connection together, first board 12 of placing is through the connection of first slide rail 16 and first spout 17 to sliding connection is on workstation 2.

Further, be equipped with first support column 18 and second in the shell body 1 and place board 19, first support column 18 is vertical upwards to be set up inside shell body 1, and the bottom surface is in the same place with the bottom inner wall fixed connection of shell body 1, and board 19 fixed connection is placed on the top surface of first support column 18 to the second, and first motor 6 is located the second and is placed on the top surface of board 19, and first support column 18 and second are placed board 19 and are used for providing a foothold for placing of first motor 6.

Further, the second fixture comprises a second motor 23 and a second lead screw 24, the second motor 23 is arranged below the workbench 2, the second lead screw 24 is arranged right below the second communicating groove 4 and the third communicating groove 5, one end of the second lead screw 24 is fixedly connected with a main shaft of the second motor 23, the other end of the second lead screw is rotatably connected to a second fixing plate 25 arranged below the workbench 2, a second lead screw nut 26 and a third lead screw nut 27 are screwed on the second lead screw 24, and the screwing directions of the second lead screw nut 26 and the third lead screw nut 27 are arranged in a reverse direction, so that when the second lead screw 24 rotates, the second lead screw nut 26 and the third lead screw nut 27 do relative reverse motion; a second connecting block 28 and a third connecting block 29 are connected to the second lead screw 24 in a sliding manner, the second connecting block 28 is fixedly connected with a second lead screw nut 26, the third connecting block 29 is fixedly connected with a third lead screw nut 27, the top surface of the second connecting block 28 upwards penetrates through the second communicating groove 4, the top surface of the second connecting block 28 is fixedly connected with a first clamping block 30, the top surface of the third connecting block 29 upwards penetrates through the third communicating groove 5, and the top surface of the third connecting block 29 is fixedly connected with a second clamping block 31; in this embodiment, the second lead screw nut 26 and the third lead screw nut 27 are symmetrically disposed on the second lead screw 24, the second connecting block 28 and the third connecting block 29 are also symmetrically disposed on the second lead screw 24, and the first clamping block 30 and the second clamping block 31 are symmetrically disposed on the worktable 2; the first clamping block 30 is provided with an arc-shaped first clamping part 32, the second clamping block 31 is provided with an arc-shaped second clamping part 33, and the first clamping part 32 and the second clamping part 33 can play a role in auxiliary clamping; the first clamping part 32 and the second clamping part 33 are respectively arranged on the opposite surfaces of the first clamping block 30 and the second clamping block 31, when the socket needs to be clamped, the second motor 23 is controlled to rotate, so that the second lead screw 24 is driven to rotate, the second lead screw 24 rotates to drive the second lead screw nut 26 and the third lead screw nut 27 to move, and the screwing directions of the second lead screw nut 26 and the third lead screw nut 27 are reversely arranged, so that the second connecting block 28 driven by the second lead screw nut 26 and the third connecting block 29 driven by the third lead screw nut 27 relatively reversely move, and the first clamping block 30 and the second clamping block 31 can be opened and closed; the socket is placed between the first clamping block 30 and the second clamping block 31, and then the second motor 23 is controlled to rotate, so that the socket can be clamped by the first clamping block 30 and the second clamping block 31.

Further, the second sliding rails 34 are disposed on both sides of the second communicating groove 4, and in this embodiment, the second sliding rails 34 are symmetrically disposed on both sides of the second communicating groove 4; the bottom surface of the first clamping block 30 is provided with a second sliding groove 35, the position distribution and the shape and the size of the second sliding groove 35 are matched with those of a second sliding rail 34, the second sliding rail 34 and the second sliding groove 35 are connected together in a sliding manner, and the first clamping block 30 is connected on the workbench 2 in a sliding manner through the connection of the second sliding rail 34 and the second sliding groove 35; third sliding rails 36 are arranged on two sides of the third communicating groove 5, and in the embodiment, the third sliding rails 36 are symmetrically arranged on two sides of the third communicating groove 5; the bottom surface of the second clamping block 31 is provided with a third sliding groove 37, the position distribution and the shape and the size of the third sliding groove 37 are matched with those of a third sliding rail 36, the third sliding rail 36 and the third sliding groove 37 are connected together in a sliding manner, and the second clamping block 31 is connected with the workbench 2 in a sliding manner through the third sliding rail 36 and the third sliding groove 37.

Further, a second supporting column 38 and a third placing plate 39 are further arranged inside the outer shell 1, the second supporting column 38 is vertically and upwardly arranged inside the outer shell 1, the bottom surface of the second supporting column is fixedly connected with the inside of the bottom of the outer shell 1, the third placing plate 39 is fixedly connected to the top surface of the second supporting column 38, the second motor 23 is arranged on the top surface of the third placing plate 39, and the second supporting column 38 and the third placing plate 39 are used for providing a foot placing point for placing the second motor 23.

The utility model discloses a use method: firstly, a socket is arranged between a first clamping block 30 and a second clamping block 31, then a second motor 23 is controlled to rotate to drive the first clamping block 30 and the second clamping block 31 to carry out opening and closing movement, the first clamping block 30 and the second clamping block 31 clamp the socket, then a plug is arranged between a first clamping plate 13 and a second clamping plate 14, a clamping screw 15 is rotated to enable the second clamping plate 14 to move downwards, and the plug is clamped by matching with the first clamping plate 13; after clamping is completed, the first motor 6 is controlled to rotate to drive the first lead screw 7 to rotate, so that the first lead screw nut 10 and the first connecting block 11 are driven to do linear motion along the first lead screw 7, at the moment, the first placing plate 12 slides on the workbench 2 to drive the air cylinder 8, the first clamping plate 13 and the second clamping plate 14 to move, the forward and reverse rotation of the first motor 6 is controlled, so that the plug and the socket can be plugged and pulled out, and then the controller 21 is used for recording the measured numerical value; when the numerical values of the test plugging speed and the force are small, the required numerical values can be obtained only by using the first motor 6, when the numerical values of the test plugging speed and the force are large, the first motor 6 is needed to drive the plug to a proper position, then the air cylinder 8 is controlled to start working, the first clamping plate 13 and the second clamping plate 14 are driven to move, the plug is made to move, and the electrical performance of the plug and the electrical performance of the socket under the condition of large plugging speed and force can be tested.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above is only the typical example of the utility model, in addition, the utility model can also have other multiple concrete implementation manners, and the technical scheme that all adopt equivalent replacement or equivalent transform to form all falls within the scope of the utility model.

Claims

1. The utility model provides a switch electrical property testing arrangement, includes shell body (1), its characterized in that: a workbench (2) is arranged in the outer shell (1), a first clamp for clamping a plug and a second clamp for clamping a socket are arranged on the workbench (2), a first communicating groove (3), a second communicating groove (4) and a third communicating groove (5) are formed in the workbench (2), the second communicating groove (4) and the third communicating groove (5) are symmetrically arranged on the workbench (2), and the first communicating groove (3) and the second communicating groove (4) or the third communicating groove (5) are vertically arranged; the first clamp is arranged on the first communicating groove (3), and the second clamp is arranged on the second communicating groove (4) and the third communicating groove (5); the bottom of the workbench (2) is provided with a driving assembly, the driving assembly is used for driving the first clamp to do linear reciprocating motion along the first connecting groove (3), the driving assembly comprises a first motor (6), a first lead screw (7) and a cylinder (8), the first motor (6) is arranged below the workbench (2), the first lead screw (7) is arranged under the first connecting groove (3), one end of the first lead screw (7) is fixedly connected with a main shaft of the first motor (6), the other end of the first lead screw is rotatably connected on a first fixing plate (9) arranged below the workbench (2), the first lead screw (7) is provided with a first lead screw nut (10) and a first connecting block (11), the first lead screw nut (10) is in threaded connection with the first lead screw (7), the first connecting block (11) is in sliding connection with the first lead screw (7) and is fixedly connected with the first lead screw nut (10), the top surface of the first connecting block (11) upwards penetrates through the first communicating groove (3), a first placing plate (12) is arranged on the top surface of the first connecting block (11), the cylinder (8) is arranged on the first placing plate (12), and the piston rod end of the cylinder (8) is fixedly connected with the first clamp.

2. A switch electrical performance testing device according to claim 1, characterized in that: the first clamp comprises a first clamp plate (13), a second clamp plate (14) and a clamping screw (15), the rear end face of the first clamp plate (13) is fixedly connected with the piston rod end of the air cylinder (8), the second clamp plate (14) is arranged above the first clamp plate (13), and the clamping screw (15) vertically penetrates through the first clamp plate (13) and the second clamp plate (14) downwards in sequence and is in threaded connection with the first clamp plate (13) and the second clamp plate (14) respectively.

3. A switch electrical performance testing device according to claim 1, characterized in that: the two sides of the first connecting groove (3) are provided with first sliding rails (16), the bottom surface of the first placing plate (12) is provided with first sliding grooves (17), and the first sliding rails (16) are connected with the first sliding grooves (17) in a sliding mode.

4. A switch electrical performance testing device according to claim 1, characterized in that: be equipped with first support column (18) in shell body (1) and place board (19) with the second, first support column (18) are vertical upwards to be set up inside shell body (1), and the bottom surface is in the same place with the bottom inner wall fixed connection of shell body (1), board (19) fixed connection is placed to the second on the top surface of first support column (18), first motor (6) are located on the second places the top surface of board (19), it has observation window (20) to open on the preceding terminal surface of shell body (1), be equipped with controller (21) on the lateral wall.

5. A switch electrical performance testing device according to claim 1, characterized in that: the bottom surface of the workbench (2) is provided with support legs (22), one ends of the support legs (22) are fixedly connected with the bottom surface of the workbench (2), and the other ends of the support legs are fixedly connected with the inner wall of the bottom of the outer shell (1).

6. A switch electrical performance testing device according to claim 1, characterized in that: the second fixture comprises a second motor (23) and a second lead screw (24), the second motor (23) is arranged below the workbench (2), the second lead screw (24) is arranged under a second communicating groove (4) and a third communicating groove (5), one end of the second lead screw (24) is fixedly connected with a main shaft of the second motor (23), the other end of the second lead screw is rotatably connected with a second fixing plate (25) arranged below the workbench (2), the second lead screw (24) is screwed with a second lead screw nut (26) and a third lead screw nut (27), the screwing directions of the second lead screw nut (26) and the third lead screw nut (27) are reversely arranged, a second connecting block (28) and a third connecting block (29) are connected on the second lead screw (24) in a sliding manner, the second connecting block (28) is fixedly connected with the second lead screw nut (26), and the third connecting block (29) is fixedly connected with the third lead screw nut (27), the top surface of the second connecting block (28) upwards passes through the second communicating groove (4), the top surface of the second connecting block (28) is fixedly connected with the first clamping block (30), the top surface of the third connecting block (29) upwards passes through the third communicating groove (5), and the top surface of the third connecting block (29) is fixedly connected with the second clamping block (31).

7. A switch electrical performance testing device according to claim 6, characterized in that: the clamping device is characterized in that a first clamping part (32) in an arc shape is arranged on the first clamping block (30), a second clamping part (33) in an arc shape is arranged on the second clamping block (31), and the first clamping part (32) and the second clamping part (33) are respectively arranged on the opposite surfaces of the first clamping block (30) and the second clamping block (31).

8. A switch electrical performance testing apparatus according to claim 7, wherein: the two sides of the second communicating groove (4) are provided with second sliding rails (34), the bottom surface of the first clamping block (30) is provided with second sliding grooves (35), the second sliding rails (34) are connected with the second sliding grooves (35) in a sliding mode, the two sides of the third communicating groove (5) are provided with third sliding rails (36), the bottom surface of the second clamping block (31) is provided with third sliding grooves (37), and the third sliding rails (36) are connected with the third sliding grooves (37) in a sliding mode.

9. A switch electrical performance testing apparatus according to claim 8, wherein: the inner portion of the outer shell (1) is further provided with a second supporting column (38) and a third placing plate (39), the second supporting column (38) is vertically and upwards arranged inside the outer shell (1), the bottom surface of the second supporting column is fixedly connected with the inner portion of the bottom of the outer shell (1), the third placing plate (39) is fixedly connected to the top surface of the second supporting column (38), and the second motor (23) is arranged on the top surface of the third placing plate (39).