CN114428210A

CN114428210A - Efficient direct current contactor integrated test equipment

Info

Publication number: CN114428210A
Application number: CN202210357465.7A
Authority: CN
Inventors: 刘奋; 尤海飞; 徐益飞
Original assignee: Weifa Electronic Technology Changzhou Co ltd
Current assignee: Weifa Electronic Technology Changzhou Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-05-03
Anticipated expiration: 2042-04-07
Also published as: CN114428210B

Abstract

The invention relates to high-efficiency direct current contactor comprehensive test equipment which comprises a test platform, a turntable and at least three groups of test tools, wherein the turntable is rotatably arranged on the test platform; the testing tool comprises a base, a contact block and a switching block, wherein the base is arranged on the turntable, the contactor is arranged on the base, and a static contact of the contactor is upward; the base is provided with an upright post, the contact block slides up and down along the upright post, the first elastic piece resets the contact block, and the switching block is arranged above the contact block and driven by the first driving mechanism to move downwards close to the contact block or upwards far away from the contact block; the contact block is provided with a first contact, a second contact, a third contact and a first probe group, the second contact is electrically connected with the first probe group, the first probe group is arranged opposite to the static contact, the third contact is electrically connected with a coil of the contactor through a first switching clamp, and the switching block is provided with a main probe group opposite to the first contact, a second probe group opposite to the second contact and a third probe group opposite to the third contact.

Description

Efficient direct current contactor integrated test equipment

Technical Field

The invention belongs to the technical field of contactor testing equipment, and particularly relates to efficient direct current contactor comprehensive testing equipment.

Background

Contactors are classified into alternating current contactors (voltage AC) and direct current contactors (voltage DC), and are applied to electric power, distribution, and power utilization occasions. In recent years, the DC contactor product flourishes due to the rise of new energy fields and the vigorous development of the field of electric automobiles. The existing direct current contactor adopts a bridge structure of two fixed contacts and a moving contact, the upper end surface of the moving contact and the two fixed contacts form a high-voltage loop, and the lower end surface of the moving contact is connected with an iron core in an external coil loop through a push rod structure. The iron core moves up and down by exciting the coil, so that the moving contact is pushed to move up and down, and the connection and the separation of the static contact and the moving contact are controlled to realize the connection and the disconnection of the direct current contactor. In order to determine the states of the moving contact and the static contact and improve the safety of the dc contactor product in practical use, the conventional dc contactor is generally provided with an auxiliary contact, and the opening or closing of the auxiliary contact is consistent with the opening or closing of the moving contact and the static contact, so as to determine the states of the moving contact and the static contact, that is, whether the moving contact and the static contact are opened or closed, specifically, reference may be made to a high-voltage sealed dc contactor with an auxiliary contact disclosed in the prior patent CN201610224325.7, a contactor with an auxiliary contact disclosed in CN202022330885.5, or an auxiliary contact for a dc contactor disclosed in CN 201410340161.5.

In the production process of the direct current contactor, the performance test of the direct current contactor needs to be carried out, and the main test items are as follows: insulation resistance test, voltage withstanding test, coil resistance test, main contact resistance test, pull-in voltage test, release voltage test, pull-in time test, release time test and the like. At present, no special test equipment for testing the comprehensive performance of the direct current contactor exists, domestic manufacturers mostly adopt manual sampling inspection for testing the performance of the direct current contactor, the manual operation process is complex and tedious, a large number of inspection personnel are needed, the operation labor intensity is high, the efficiency is low, and the situations of misjudgment, missed inspection, unrecorded test data and the like are inevitable; or, the existing contactor test equipment can test one or two performances of the contactor, and the test of multiple performances needs to be performed on multiple test equipment respectively, so that the time and labor are wasted, the test efficiency is low, and the test cost is increased.

Disclosure of Invention

The invention provides efficient comprehensive testing equipment for a direct current contactor, aiming at solving the problems that the prior art has no comprehensive testing equipment for testing the performance of the direct current contactor and has low testing efficiency.

In order to solve the technical problems, the technical scheme adopted by the invention is that the efficient direct current contactor comprehensive test equipment comprises a test platform, a turntable and at least three groups of test tools, wherein the turntable is rotatably arranged on the test platform, and the at least three groups of test tools are sequentially arranged around the rotation direction of the turntable; the testing tool comprises a base, a contact block and a switching block, wherein the base is arranged on the turntable, the contactor to be tested is arranged on the base, and a static contact of the contactor to be tested faces upwards; the base is provided with an upright post, the contact block is arranged along the upright post in a vertically sliding manner, a first elastic piece for resetting the contact block is arranged between the contact block and the base, the transfer block is arranged above the contact block, and the transfer block is driven by a first driving mechanism to move downwards close to the contact block or move upwards away from the contact block;

the contactor comprises a contact block, and is characterized in that a first contact, a second contact, a third contact and a first probe group are arranged on the contact block, the second contact is electrically connected with the first probe group, the third contact is electrically connected with a coil of a contactor through a first transfer clamp, a main probe group, a second probe group and a third probe group are arranged on the transfer block, when the first driving mechanism drives the transfer block to press down, the main probe group is in contact with the first contact, the second probe group is in contact with the second contact, the third probe group is in contact with the third contact and presses down the contact block until the first contact is in electrical contact with a fixed contact of the contactor, and the first probe group is in electrical contact with the fixed contact of the contactor.

Preferably, the number of the test tools is three, the test platform is sequentially provided with an insulating and voltage-withstanding test station, a coil resistance test station and a contact resistance test station around the rotation direction of the turntable, and the insulating and voltage-withstanding test station, the coil resistance test station and the contact resistance test station are arranged in one-to-one correspondence with the three groups of test tools. Measuring the insulation resistance and the voltage resistance of a static contact of the contactor to the static contact at an insulation voltage resistance test station; measuring the resistance of the coil at a coil resistance test station; the contact resistance between the static contacts of the contactor is measured at the contact resistance testing station, and the high-efficiency direct current contactor comprehensive testing equipment realizes the simultaneous testing of all the performances of the contactor, thereby greatly improving the testing efficiency.

Preferably, the test tools are four in number, the test platform is sequentially provided with an insulation and voltage resistance test station, a coil resistance test station, a contact resistance test station and a comprehensive test station around the rotation direction of the turntable, and the insulation and voltage resistance test station, the coil resistance test station, the contact resistance test station and the comprehensive test station are arranged in one-to-one correspondence with the four test tools. Measuring the insulation resistance and the voltage resistance of a static contact of the contactor to the static contact at an insulation voltage resistance test station; measuring the resistance of the coil at a coil resistance test station; measuring contact resistance between fixed contacts of the contactor at a contact resistance test station; the pull-in voltage, the release voltage, the pull-in time and the release time of the contactor are measured at the comprehensive test station, and the efficient direct current contactor comprehensive test equipment can be used for simultaneously testing all performances of the contactor, so that the test efficiency is greatly improved.

Further, test platform still is provided with the unloading station and sweeps a yard station, go up the unloading station, sweep yard station, insulating withstand voltage test station and coil resistance test station and set gradually around the carousel, go up the unloading station and sweep and all correspond on the yard station and be provided with a set ofly test fixture, just go up the unloading station and sweep test fixture on the yard station and all not set up a actuating mechanism and switching piece, it is provided with the scanner to sweep yard station department. The feeding and discharging station is arranged to facilitate the feeding and discharging operation of the high-efficiency direct current contactor comprehensive test equipment; sweep the test performance that the setting of sign indicating number station is convenient for record correspondence contactor, improve automation level, record accuracy and efficiency of software testing greatly.

And further, the static contact and the moving contact of the contactor are electrically washed at the coil resistance testing station or the contact resistance testing station. At a coil resistance testing station, the moving contact and the static contact are closed, the static contact is electrified, the coil is repeatedly powered off for 20 times, the static contact is repeatedly switched off for 20 times, the moving contact and the static contact are electrified and aged, the electrification and coil resistance testing or contact resistance testing are integrated at one station, the testing beats of the efficient direct current contactor comprehensive testing equipment are effectively balanced (the testing time of each station is close or consistent as much as possible), the waiting time is shortened, and the testing efficiency is improved.

Furthermore, a fourth contact is further arranged on the contact block, the fourth contact is electrically connected with the auxiliary contact of the contactor through a second adapter clamp, a fourth probe group is further arranged on the adapter block, and the fourth probe group and the fourth contact are arranged oppositely. The moving contact and the static contact are judged in an auxiliary mode to be opened or closed, so that the testing effectiveness of the efficient direct current contactor comprehensive testing equipment is monitored conveniently, and the testing precision is improved.

Furthermore, a metal plate is arranged between the contactor and the base, a metal rod is arranged below the test platform of the insulation and voltage resistance test station, and the metal rod is driven by a second driving mechanism to upwards penetrate through the base to be in electrical contact with the metal plate or downwards move away from the metal plate. At an insulation and voltage resistance test station, the first contact is connected with the two static contacts, the coil is not electrified, the moving contact and the static contacts are disconnected, the metal rod is connected with the metal plate, and the insulation and voltage resistance instrument measures the insulation resistance and voltage resistance of the static contact of the contactor to the shell.

Preferably, the second driving mechanism comprises a second cylinder and a second bracket, the second bracket is arranged on the test platform, the second cylinder is arranged on the second bracket, and the metal rod is fixedly arranged at the output end of the second cylinder; the rotary table is driven by a third driving mechanism to rotate and is arranged on the test platform, the third driving mechanism comprises a stepping motor, the stepping motor is arranged on the test platform, and the output end of the stepping motor is in transmission connection with the rotary table. The second driving mechanism and the third driving mechanism are simple and reliable in structure, convenient to control and low in cost.

Preferably, the test tool further comprises a sliding block and a pressing block, the sliding block is sleeved on the stand column in a vertically sliding mode, the contact block is fixedly arranged on the sliding block, and the first elastic piece is located between the sliding block and the base; the first driving mechanism comprises a first air cylinder and a first support, the first support is arranged on the test platform, the first air cylinder is arranged on the first support, the pressing block is fixedly arranged at the output end of the first air cylinder, and the transfer block is fixedly arranged on the pressing block; the main probe group is connected with the switching block in a sliding mode, a second elastic piece is arranged between the main probe group and the switching block, and the first elastic piece and the second elastic piece are both springs. The first driving mechanism is simple and reliable in structure, convenient to control and low in cost.

Preferably, the base is provided with at least two first positioning pins which are sequentially arranged along the horizontal direction, and a shell of the contactor is provided with first positioning holes matched with the first positioning pins; at least two second positioning holes are vertically formed in the base, the at least two second positioning holes are sequentially distributed in the horizontal plane, and a second positioning pin matched with the second positioning holes is arranged on the rotary table; the base is provided with a handle. The base is conveniently and quickly clamped on the turntable, and the positioning accuracy is high, and the contactor is conveniently and quickly clamped on the base, and the positioning accuracy is high.

Has the advantages that:

1. according to the efficient direct current contactor comprehensive test equipment, when the turntable is paused for one station, the feeding and discharging station, the code scanning station, the insulation and voltage resistance test station, the coil resistance test station, the contact resistance test station and the comprehensive test station act simultaneously, and the insulation and voltage resistance test station, the coil resistance test station, the contact resistance test station and the comprehensive test station test four contactors simultaneously, so that the test efficiency is greatly improved;

2. according to the efficient comprehensive testing equipment for the direct current contactor, the insulation resistance and the voltage resistance of a static contact of the contactor to a static contact and the insulation resistance and the voltage resistance of a static contact of the contactor to a shell are tested at an insulation voltage resistance testing station, the resistance of a coil is tested at a coil resistance testing station, the moving contact and the static contact are simultaneously washed (electrified aging), the contact resistance between the static contacts of the contactor is tested at a contact resistance testing station, the pull-in voltage, the release voltage, the pull-in time and the release time of the contactor are tested at the comprehensive testing station, testing tools of all testing stations are consistent, a switching block and a contact block of each testing tool are consistent, the structure of each testing tool is greatly simplified, the structure of the efficient comprehensive testing equipment for the direct current contactor is greatly simplified, the testing precision is improved, and the cost is lower;

3. according to the efficient direct current contactor comprehensive test equipment, the contactor is placed on the base only by manpower, the corresponding first positioning hole is sleeved on the first positioning pin, clamping of the contactor is completed, clamping is very convenient and reliable, and multiple performance tests of the contactor are completed automatically by clamping at each station at one time, so that the test efficiency is greatly improved, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be 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 to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a high-efficiency dc contactor integrated test apparatus according to the present invention;

FIG. 2 is a schematic front view of the high efficiency DC contactor integrated test apparatus of the present invention;

FIG. 3 is a schematic diagram of a three-dimensional structure of a testing tool of the high-efficiency DC contactor integrated testing device in an unmeasured state according to the present invention;

fig. 4 is a schematic perspective view of a measurement state of a test fixture of the efficient dc contactor integrated test device according to the present invention;

fig. 5 is a schematic perspective view illustrating a measuring state of a contact block of the high-efficiency dc contactor integrated test apparatus according to the present invention;

fig. 6 is a schematic perspective view illustrating an unmeasured state of a contact block of the high-efficiency dc contactor integrated test apparatus according to the present invention;

FIG. 7 is a schematic perspective view of a junction block of the efficient DC contactor integrated test apparatus of the present invention in an unmeasured state;

in the figure: 1. a testing platform, 11, a loading and unloading station, 12, a code scanning station, 121, a scanner, 13, an insulation and pressure resistance testing station, 14, a coil resistance testing station, 15, a contact resistance testing station, 16, a comprehensive testing station, 2, a turntable, 3, a testing tool, 31, a base, 311, a first positioning pin, 312, a second positioning hole, 313, a handle, 32, a contact block, 321, a first contact, 322, a second contact, 323, a third contact, 324, a fourth contact, 325, a first probe group, 33, a transfer block, 331, a main probe group, 332, a second probe group, 333, a third probe group, 334, a fourth probe group, 335, a second elastic element, 341, a column, 342, a guide column, 343, a guide sleeve, 344, a limiting block, 35, a first elastic element, 36, a first driving mechanism, 361, a first air cylinder, 362, a first bracket, 37, a sliding block, 38 and a pressing block, 4. the device comprises a metal plate, 5, a metal rod, 6, a second driving mechanism, 61, a second cylinder, 62, a second support, 7, a stepping motor, 8, a contactor, 81, a static contact, 82, a shell, 83 and a first positioning hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, an efficient integrated test device for a direct current contactor includes a test platform 1, a turntable 2 and at least three groups of test tools 3, wherein the turntable 2 is rotatably disposed on the test platform 1, the at least three groups of test tools 3 are sequentially disposed around a rotation direction of the turntable 2, the turntable 2 of this embodiment is rotatably disposed on the test platform 1 by being driven by a third driving mechanism, the third driving mechanism includes a stepping motor 7, the stepping motor 7 is disposed on the test platform 1, and an output end of the stepping motor 7 is in transmission connection with the turntable 2; the testing tool 3 comprises a base 31, a contact block 32 and a transfer block 33, wherein the base 31 is arranged on the turntable 2, the contactor 8 to be tested is arranged on the base 31, and a static contact 81 of the contactor is upward; the base 31 is provided with an upright column 341, the contact block 32 is arranged along the upright column 341 in a vertically sliding manner, a first elastic piece 35 for resetting the contact block 32 is arranged between the contact block 32 and the base 31, the transfer block 33 is arranged above the contact block 32, and the transfer block 33 is driven by a first driving mechanism 36 to move downwards close to the contact block 32 or move upwards away from the contact block 32; the contact block 32 is provided with a first contact 321, a second contact 322, a third contact 323 and a first probe set 325, the second contact 322 is electrically connected with the first probe set 325, the third contact 323 is electrically connected with a coil (not shown in the figure) of the contactor 8 through a first adaptor clip, the adaptor block 33 is provided with a main probe set 331, a second probe set 332 and a third probe set 333, when the first driving mechanism 36 drives the adaptor block 33 to press down, the main probe set 331 is in contact with the first contact 321, the second probe set 332 is in contact with the second contact 322, and the third probe set 333 is in contact with the third contact and presses down the contact block 32 until the first contact 321 is in electrical contact with the static contact 81 of the contactor 8, and the first contact 325 is in electrical contact with the static contact 81 of the contactor 8.

As shown in fig. 3 to 7, in order to facilitate monitoring of opening and closing of the auxiliary contact of the contactor 8, that is, to assist in determining whether the movable contact and the static contact 81 are opened or closed, in this embodiment, a fourth contact 324 is further disposed on the contact block 32, the fourth contact 324 is electrically connected to the auxiliary contact of the contactor 8 through a second adapter (not shown in the figure), a fourth probe set 334 is further disposed on the adapter block 33, and the fourth probe set 334 is disposed opposite to the fourth contact 324.

As shown in fig. 2 to 6, in order to measure the insulation resistance and the voltage resistance of the stationary contact 81 of the contactor 8 to the housing 82, in this embodiment, a metal plate 4 is disposed between the contactor 8 and the base 31, the metal plate 4 in this embodiment is a copper plate, a metal rod 5 is disposed below the test platform 1 of the insulation and voltage resistance test station 13, the metal rod 5 in this embodiment is a copper rod, the metal rod 5 is driven by the second driving mechanism 6 to upwards penetrate through the base 31 to be in electrical contact with the metal plate 4 or to downwards move away from the metal plate 4, specifically, the second driving mechanism 6 includes a second cylinder 61 and a second bracket 62, the second bracket 62 is disposed on the test platform 1, the second cylinder 61 is disposed on the second bracket 62, and the metal rod 5 is fixedly disposed at an output end of the second cylinder 61.

As shown in fig. 1, specifically, in this embodiment, the number of the test tools 3 is four, the test platform 1 is sequentially provided with an insulation and voltage withstand test station 13, a coil resistance test station 14, a contact resistance test station 15, and a comprehensive test station 16 around the rotation direction of the turntable 2, the insulation and voltage withstand test station 13, the coil resistance test station 14, the contact resistance test station 15, and the comprehensive test station 16 are arranged in one-to-one correspondence with the four groups of test tools 3, so that the insulation resistance and voltage withstand performance of a static contact 81 of the contactor 8 to the static contact 81 and the insulation resistance and voltage withstand performance of a static contact 81 of the contactor 8 to the housing 82 are measured at the insulation and voltage withstand test station 13; measuring the resistance of the coil at a coil resistance test station 14; measuring the contact resistance between the static contacts 81 of the contactor 8 at a contact resistance test station 15; measuring the pull-in voltage, the release voltage, the pull-in time and the release time of the contactor 8 at the comprehensive test station 16; in this embodiment, the coil resistance testing station 14 or the contact resistance testing station 15 further performs electric washing of the fixed contact 81 and the movable contact of the contactor 8, and the electric washing and the coil resistance testing or the contact resistance testing are integrated in one station, so that the testing beat of the high-efficiency direct current contactor comprehensive testing device is effectively balanced (the testing time of each station is close or consistent as much as possible), the waiting time is shortened, and the testing efficiency is improved.

As shown in fig. 1, in order to facilitate loading and unloading and data recording, in this embodiment, the test platform 1 is further provided with a loading and unloading station 11 and a code scanning station 12, the loading and unloading station 11, the code scanning station 12, an insulating and voltage-withstanding test station 13 and a coil resistance test station 14 are sequentially arranged around the turntable 2, the loading and unloading station 11 and the code scanning station 12 are also correspondingly provided with a set of test tools 3, the loading and unloading station 11 and the code scanning station 12 are not provided with a first driving mechanism 36 and a switching block 33, and the code scanning station 12 is provided with a scanner 121.

As shown in fig. 3 to 7, in order to improve the stability and reliability of the test fixture 3, in this embodiment, the test fixture 3 further includes a slider 37 and a press block 38, the slider 37 is slidably sleeved on the upright 341 up and down, the base 31 is provided with a guide pillar 342, the slider 37 is provided with a guide sleeve 343 engaged with the guide pillar 342, the guide pillar 342 is provided with a limit block 344, the slider 37 is located between the base 31 and the limit block 344, the contact block 32 is fixedly disposed on the slider 37, and the first elastic element 35 is located between the slider 37 and the base 31; the first driving mechanism 36 includes a first cylinder 361 and a first bracket 362, the first bracket 362 is disposed on the testing platform 1, the first cylinder 361 is disposed on the first bracket 362, the pressing block 38 is fixedly disposed at the output end of the first cylinder 361, and the transfer block 33 is fixedly disposed on the pressing block 38; the main probe set 331 is slidably connected with the switching block 33, a second elastic member 335 is arranged between the main probe set 331 and the switching block 33, and both the first elastic member 35 and the second elastic member 335 are springs.

As shown in fig. 3 to 6, in order to facilitate clamping of the test fixture 3, in this embodiment, at least two first positioning pins 311 are disposed on the base 31, the at least two first positioning pins 311 are sequentially arranged along a horizontal direction, and a first positioning hole 83 matched with the first positioning pin 311 is disposed on the housing 82 of the contactor 8; at least two second positioning holes 312 are vertically formed in the base 31, the at least two second positioning holes 312 are sequentially arranged in a horizontal plane, and a second positioning pin (not shown) matched with the second positioning holes 312 is arranged on the turntable 2; the base 31 is provided with a handle 313.

The efficient direct current contactor comprehensive test equipment has the following test process:

firstly, manually placing a first contactor 8 on the metal plate 4 of the loading and unloading station 11, at the moment, the corresponding first positioning hole 83 is sleeved on the first positioning pin 311, then the coil outgoing line of the contactor 8 is electrically connected with the first switching clamp, and the auxiliary contact outgoing line of the contactor 8 is electrically connected with the second switching clamp, the stepping motor 7 drives the turntable 2 to rotate for a station pause again until the first contactor 8 reaches the code scanning station 12, the scanner 121 of the code scanning station 12 scans the bar code of the first contactor 8 to record the information of the contactor 8, meanwhile, manually placing a second contactor 8 on the metal plate 4 of the loading and unloading station 11, and repeating the above actions, the stepping motor 7 drives the turntable 2 to rotate for a station pause again until the first contactor 8 reaches the insulation and voltage resistance test station 13, and the second contactor 8 reaches the code scanning station 12, the stepping motor 7 repeats the actions, drives the turntable 2 to rotate one station each time until each contactor 8 passes through the code scanning station 12, the insulation and voltage resistance testing station 13, the coil resistance testing station 14, the contact resistance testing station 15 and the comprehensive testing station 16 from the loading and unloading station 11 in sequence, and finally is manually taken down after reaching the loading and unloading station 11 to finish the testing of each performance of the contactor 8;

wherein, when the contactor 8 reaches the insulation and voltage resistance test station 13: the first cylinder 361 of the insulation and voltage withstand test station 13 drives the pressing block 38 and the transfer block 33 to press down, the main probe group 331 is in contact with the first contact 321, the second probe group 332 is in contact with the second contact 322, the third probe group 333 is in contact with the third contact 323, and the fourth probe group 334 is in contact with the fourth contact 324, and the contact block 32 is pressed down until the first contact 321 is in electrical contact with the static contact 81 of the contactor 8, and the first probe group 325 is also in electrical contact with the static contact 81 of the contactor 8; meanwhile, the second cylinder 61 of the insulation and voltage resistance test station 13 drives the metal rod 5 to upwards penetrate through the base 31 to be in electrical contact with the metal plate 4, at this time, the coil of the contactor 8 is not electrified, the moving contact and the static contact 81 are disconnected, the insulation and voltage resistance instrument measures the insulation resistance and voltage resistance of the static contact 81 of the contactor 8 to the static contact 81, and the insulation and voltage resistance instrument measures the insulation resistance and voltage resistance of the static contact 81 of the contactor 8 to the shell 82;

wherein, when contactor 8 reaches coil resistance test station 14: the first cylinder 361 of the coil resistance testing station 14 drives the pressing block 38 and the switching block 33 to press down, the pressing process is not repeated as above, at this time, the resistance of the coil is measured by the third probe group 333, the static contact 81 is powered on, the coil is powered off repeatedly for 20 times, the static contact 81 is powered off repeatedly for 20 times, and the moving contact and the static contact 81 are washed (aged with electricity);

wherein, when contactor 8 reaches contact resistance test station 15: the first air cylinder 361 of the contact resistance testing station 15 drives the pressing block 38 and the switching block 33 to press down, the pressing down process is not repeated as described above, at this time, the coil of the contactor 8 is electrified through the third probe group 333, the moving contact and the static contact 81 of the contactor 8 are closed, and the contact resistance between the static contacts 81 of the contactor 8 is measured through the second probe group 332;

wherein, when the contactor 8 reaches the integrated test station 16: the first air cylinder 361 of the comprehensive test station 16 drives the pressing block 38 and the switching block 33 to press down, the pressing process is not repeated as above, at this time, a certain voltage is applied to the coil through the third probe group 333, the moving contact and the static contact 81 of the contactor 8 are controlled to be closed and released, and the pull-in voltage, the release voltage, the pull-in time and the release time of the contactor 8 are tested through the main probe group 331;

when the turntable 2 is paused for one station, the loading and unloading station 11, the code scanning station 12, the insulation and voltage resistance testing station 13, the coil resistance testing station 14, the contact resistance testing station 15 and the comprehensive testing station 16 act simultaneously.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides an efficient direct current contactor integrated test equipment which characterized in that: the test platform comprises a test platform (1), a turntable (2) and at least three groups of test tools (3), wherein the turntable (2) is rotatably arranged on the test platform (1), and the at least three groups of test tools (3) are sequentially arranged around the rotation direction of the turntable (2); the testing tool (3) comprises a base (31), a contact block (32) and a switching block (33), wherein the base (31) is arranged on the turntable (2), the contactor (8) to be tested is arranged on the base (31) and a static contact (81) of the contactor faces upwards; the base (31) is provided with an upright post (341), the contact block (32) is arranged along the upright post (341) in a vertically sliding manner, a first elastic piece (35) for resetting the contact block (32) is arranged between the contact block (32) and the base (31), the transfer block (33) is arranged above the contact block (32), and the transfer block (33) is driven by a first driving mechanism (36) to move downwards close to the contact block (32) or move upwards away from the contact block (32);

the contact block (32) is provided with a first contact (321), a second contact (322), a third contact (323) and a first probe group (325), the second contact (322) is electrically connected with the first probe group (325), the third contact (323) is electrically connected with a coil of the contactor (8) through a first transfer clamp, the transfer block (33) is provided with a main probe group (331), a second probe group (332) and a third probe group (333), when the first driving mechanism (36) drives the transfer block (33) to press down, the main probe group (331) is contacted with the first contact (321), the second probe group (332) is contacted with the second contact (322), and the third probe group (333) is contacted with the third contact (323) and presses down the contact block (32) until the first contact (321) is electrically contacted with a static contact (81) of the contactor (8), and the first set of probes (325) is in electrical contact with a stationary contact (81) of a contactor (8).

2. The high efficiency dc contactor integrated test apparatus of claim 1, wherein: the quantity of test fixture (3) is three groups, test platform (1) has set gradually withstand voltage test station (13), coil resistance test station (14) and contact resistance test station (15) around the direction of rotation of carousel (2), withstand voltage test station (13), coil resistance test station (14) and contact resistance test station (15) and three groups test fixture (3) one-to-one sets up.

3. The high efficiency dc contactor integrated test apparatus of claim 1, wherein: the quantity of test fixture (3) is four groups, test platform (1) has set gradually withstand voltage test station (13), coil resistance test station (14), contact resistance test station (15) and comprehensive test station (16) around the direction of rotation of carousel (2), withstand voltage test station (13), coil resistance test station (14), contact resistance test station (15) and comprehensive test station (16) and four groups the test fixture (3) one-to-one sets up.

4. The high efficiency dc contactor integrated test apparatus of claim 2 or 3, wherein: test platform (1) still is provided with unloading station (11) and sweeps yard station (12), unloading station (11), sweep yard station (12), withstand voltage test station (13) and coil resistance test station (14) and set gradually around carousel (2), unloading station (11) and sweep also all correspond on yard station (12) and be provided with a set ofly test fixture (3), just unloading station (11) and sweep test fixture (3) on yard station (12) and all not set up first actuating mechanism (36) and switching block (33), it is provided with scanner (121) to sweep yard station (12) department.

5. The high efficiency dc contactor integrated test apparatus of claim 2 or 3, wherein: and the static contact (81) and the moving contact of the contactor (8) are also electrically washed at the coil resistance testing station (14) or the contact resistance testing station (15).

6. The high efficiency dc contactor integrated test apparatus of claim 1, 2 or 3, wherein: the contact block (32) is further provided with a fourth contact (324), the fourth contact (324) is electrically connected with the auxiliary contact of the contactor (8) through a second adapter clamp, the adapter block (33) is further provided with a fourth probe group (334), and the fourth probe group (334) and the fourth contact (324) are arranged oppositely.

7. The high efficiency dc contactor integrated test apparatus of claim 2 or 3, wherein: be provided with metal sheet (4) between contactor (8) and base (31), the below of test platform (1) of withstand voltage test station (13) is provided with metal pole (5), metal pole (5) are upwards passed base (31) and metal sheet (4) electrical contact or are kept away from metal sheet (4) and remove downwards by second actuating mechanism (6) drive.

8. The high efficiency dc contactor integrated test apparatus of claim 7, wherein: the second driving mechanism (6) comprises a second air cylinder (61) and a second support (62), the second support (62) is arranged on the test platform (1), the second air cylinder (61) is arranged on the second support (62), and the metal rod (5) is fixedly arranged at the output end of the second air cylinder (61); carousel (2) is rotated by the drive of third actuating mechanism and is set up on test platform (1), third actuating mechanism includes step motor (7), step motor (7) set up on test platform (1), the output and the carousel (2) transmission of step motor (7) are connected.

9. The high efficiency dc contactor integrated test apparatus of claim 1, 2 or 3, wherein: the test tool (3) further comprises a sliding block (37) and a pressing block (38), the sliding block (37) is sleeved on the upright post (341) in a vertically sliding mode, the contact block (32) is fixedly arranged on the sliding block (37), and the first elastic piece (35) is located between the sliding block (37) and the base (31); the first driving mechanism (36) comprises a first air cylinder (361) and a first support (362), the first support (362) is arranged on the test platform (1), the first air cylinder (361) is arranged on the first support (362), the pressing block (38) is fixedly arranged at the output end of the first air cylinder (361), and the transfer block (33) is fixedly arranged on the pressing block (38); the main probe set (331) is connected with the switching block (33) in a sliding mode, a second elastic piece (335) is arranged between the main probe set (331) and the switching block (33), and the first elastic piece (35) and the second elastic piece (335) are both springs.

10. The high efficiency dc contactor integrated test apparatus of claim 1, 2 or 3, wherein: the base (31) is provided with at least two first positioning pins (311), the at least two first positioning pins (311) are sequentially arranged along the horizontal direction, and a shell (82) of the contactor (8) is provided with a first positioning hole (83) matched with the first positioning pin (311); at least two second positioning holes (312) are vertically formed in the base (31), the at least two second positioning holes (312) are sequentially arranged in a horizontal plane, and a second positioning pin matched with the second positioning holes (312) is arranged on the turntable (2); the base (31) is provided with a handle (313).