Industrial frequency converter test equipment

Abstract

The invention discloses industrial frequency converter testing equipment which comprises an operation table, a detector is installed on the operation table, a feeding sliding groove and a discharging sliding plate are installed on the operation table, a feeding device is arranged on the operation table and comprises a motor, the output end of the motor is connected with an output shaft, and the output end of the motor is connected with an output shaft. The end, away from the motor, of the output shaft is rotationally connected with the inner wall of the operation table, a driven shaft is rotationally installed on the inner wall of the operation table, and the outer wall of the output shaft and the outer wall of the driven shaft are sleeved with two conveying belts. Through cooperation of the feeding sliding groove and the feeding device, a plurality of frequency converters can be placed in the feeding sliding groove at a time, the frequency converters can sequentially fall onto the conveying belt and then are conveyed to the detector through cooperation of the supporting plate and the feeding frame to be detected, and after detection is completed, the frequency converters return to the conveying belt and slide to the next working procedure through the discharging sliding plate. And the effect of automatic feeding and discharging is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of frequency converter testing equipment, and in particular to industrial frequency converter testing equipment. Background Art

[0002] The inverter is mainly composed of rectification, filtering, inversion, braking unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the opening and closing of the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. The inverter test equipment is used to evaluate and verify the performance and specifications of the inverter (power electronic equipment used to control the speed of the motor). Due to the widespread use of inverters, the design of its test equipment is very important.

[0003] Chinese patent publication number CN218601387U discloses "an automatic test device for debugging a frequency converter", including a machine, a detection station is provided on the machine, a detection terminal is provided on one side of the detection station, a dual-axis mobile module is provided at the lower end of the detection terminal, a roller slide, a limit bar and two adjustment blocks are provided on the detection station, the detection terminal includes a forward wiring terminal and a reverse wiring terminal, the forward wiring terminal includes a telescopic frame, and a push cylinder and a junction box are provided at the front and rear ends of the telescopic frame. The patent adopts a combined structure of a detection station, a detection terminal and a dual-axis mobile module, and locates the frequency converter to be tested through a roller slide, a limit bar and an adjustment block, and uses an X-axis slide and a Y-axis slide to switch the forward wiring terminal and the reverse wiring terminal, and automatically locates and connects the wiring, replacing manual operation and repeated wiring, avoiding the adverse phenomenon of frequency converter damage caused by manual wrong or reverse connection, and is safe and convenient to operate, avoiding corporate losses.

[0004] However, the prior art has the following problems: 1. When testing industrial inverters in the prior art, manual loading is usually required. The staff places the industrial inverter on the test equipment for testing, and then manually unloads the inverter after the test. The degree of automation is low, the staff's work intensity is high, there are many work processes, and the testing efficiency of the industrial inverter is also low. Summary of the invention

[0005] The purpose of the present invention is to provide an industrial inverter testing device to solve the above problems and overcome the defects of the prior art, as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions: The transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that the transmission mechanism that this invention relates to is that

[0007] Preferably, a reciprocating thread groove is provided on the surface of the reciprocating screw, and the ball slider is slidably connected to the reciprocating thread groove on the surface of the reciprocating screw via a ball. When the output shaft rotates, the output shaft drives the reciprocating screw to rotate through a belt. When the reciprocating screw rotates, the ball slider drives the loading rack to reciprocate back and forth. Every time the two conveyor belts rotate a full circle, the loading rack performs a reciprocating motion back and forth.

[0008] Preferably, the two conveyor belts are arranged in a mirror image, the support plate is located between the two conveyor belts, the loading rack is provided with a push plate and a push rod, the loading rack is installed with an inclined block, the inclined block contacts with the convex ball when moving, and contacts with the convex ball and lifts the convex ball when the inclined block moves backward, and the convex ball drives the support plate to move upward, and the four sliding shafts and two brackets limit the support plate.

[0009] Preferably, a lever is installed on the conveyor belt, and multiple rubber strips are also installed on the conveyor belt. A baffle is provided at the left end of the feed chute. Two through holes are provided on the feed chute, and the two levers pass through the through holes during movement. When the two conveyor belts rotate, the two levers and the multiple rubber strips are driven to move synchronously. When the two levers pass through the two through holes on the feed chute during movement, the two levers contact the bottom of the inverter and lift the inverter to the upper left, so that the lower left corner of the inverter is separated from the baffle of the feed chute. When the lower left corner of the inverter contacts the rubber strip, due to the large friction between the rubber strip and the inverter, the multiple rubber strips use friction to drive the inverter to move to the left, so that the inverter falls completely on the two conveyor belts. At this time, the other inverter slides to the left and contacts the baffle under the vibration of the feed chute.

[0010] Preferably, a plurality of vibration teeth are installed on the driven shaft, and a spring sheet is installed at the bottom of the feed chute. The vibration teeth contact the spring sheet when moving, and the driven shaft rotates to drive the plurality of vibration teeth to rotate. When the vibration teeth rotate, they contact the spring sheet and drive the spring sheet to vibrate. The spring sheet transmits the vibration to the feed chute, and the feed chute vibrates to cause the frequency converter inside it to move closer to the left.

[0011] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

[0012] Preferably, an arc rod is rotatably installed on the inner wall of the operating table, the top end of the arc rod is hinged to the sliding seat, and a resistance block is connected to the loading rack, and the resistance block contacts the arc rod when moving. A spring is arranged between the sliding seat and the operating table, and when the resistance block moves backward, it contacts the arc rod and pushes the bottom end of the arc rod backward, so that the arc rod pushes the sliding seat forward through the lever principle, and the spring on the sliding seat plays a resetting role. When the push plate on the loading rack pushes the frequency converter to the detection position, the sliding seat moves forward, so that multiple connecting wires on multiple adjustment blocks are connected to the wiring port of the frequency converter, thereby achieving the effect of automatic wiring. After the connecting wires of the frequency converter and the detector are connected, the detector performs relevant tests on the frequency converter.

[0013] Preferably, a clamping assembly is provided on the operating table, and the clamping assembly includes two mounting plates, both of which are slidably mounted on the inner wall of the operating table, a connecting rod is hinged at the bottom of the mounting plate, a telescopic rod is installed at the bottom of the operating table, a spring is provided inside the telescopic rod, the telescopic end of the telescopic rod is connected to a connecting block, the ends of the two connecting rods away from the mounting plate are hinged to the connecting block, the loading rack contacts the connecting block during movement, and the mounting plate is connected with a clamping plate via a spring, and when the frequency converter is about to move to the detection position, the two clamping plates move in a direction close to the frequency converter until the frequency converter is clamped, and due to the setting of the spring, the two clamping plates can clamp frequency converters of different specifications.

[0014] Preferably, two short shafts are installed on the operating table, and two wire clamping plates are slidably installed on the two short shafts. A spring is arranged between the two wire clamping plates, and triangular blocks are respectively installed at both ends of the wire clamping plates. A fork-shaped rod is connected to the mounting plate, and the two fork-shaped rods are in contact with four triangular blocks when moving. When the fork-shaped rod moves in a direction close to the frequency converter, the fork-shaped rod will contact the two triangular blocks and slide along the inclined surfaces of the two triangular blocks, so that the two triangular blocks move toward each other, and the four triangular blocks drive the two wire clamping plates to move in a direction close to the connecting line. The two wire clamping plates clamp the connecting line during the movement to prevent the connection between the connecting line and the detector from falling off and affecting the detection.

[0015] The beneficial effects are: 1. Through the cooperation of the feed chute and the loading device, multiple inverters can be placed in the feed chute at one time, and the inverters can fall onto the conveyor belt in turn, and then be transported to the detector for detection through the cooperation between the pallet and the loading rack. When the detection is completed, the inverter returns to the conveyor belt and slides to the next process through the discharging slide, achieving the effect of automatic loading and unloading, reducing the operating steps of the staff, reducing the labor intensity of the staff, and the automatic loading and unloading cooperates with the detection of the detector to increase the detection frequency, thereby improving work efficiency.

[0016] 2. Through the setting of the wiring assembly, when the inverter moves backward and is about to reach the detection position, multiple adjustment blocks drive multiple connecting wires to move forward, so that multiple connecting wires can be connected to the wiring port of the inverter, reducing the operation steps of the staff in wiring, and at the same time reducing the risk of electric shock to the staff during wiring; through the cooperation of the threaded rod, the adjustment block and the slide rod, the staff can adjust the wiring position according to the inverters of different specifications, thereby enhancing the applicability of the wiring assembly.

[0017] 3. Through the setting of the clamping assembly, when the inverter is about to reach the detection position, the two clamping plates move towards the inverter until the inverter is clamped. While clamping, the two clamping plates can center the inverter to avoid the position deviation of the inverter and affect the operation of the wiring assembly; through the cooperation of the two clamping plates, before the detection operation starts, the two clamping plates clamp the front position of the connection between the connecting wire and the detector to avoid the connecting wire falling off during the detection process, and also reduce the twisting of the connecting wire, thereby extending the service life of the connecting wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of a feeding device of the present invention; Figure 3 It is a schematic diagram of the reciprocating screw structure of the present invention; Figure 4 It is a schematic diagram of the support plate structure of the present invention; Figure 5 It is a schematic diagram of the driven shaft structure of the present invention; Figure 6 is a schematic diagram of the wiring assembly structure of the present invention; Figure 7 It is a schematic diagram of the arc rod structure of the present invention; Figure 8 It is a schematic diagram of the structure of the clamping assembly of the present invention; Fig. 9 It is a schematic diagram of the structure of the wire clamping plate of the present invention.

[0020] The reference numerals are as follows: 1. operating table; 2. detector; 21. connecting wire; 3. feeding chute; 31. spring; 4. discharging slide plate; 5. feeding device; 51. motor; 52. output shaft; 53. driven shaft; 54. conveyor belt; 55. belt; 56. reciprocating screw rod; 57. ball slider; 58. feeding rack; 59. inclined block; 510. support plate; 511. sliding shaft; 512. bracket; 513. convex ball; 514. lever; 515. rubber strip; 516. vibration tooth; 6. wiring assembly; 61. sliding seat; 62. mounting shaft; 63. slide rod; 64. threaded rod; 65. adjustment block; 66. arc rod; 67. resistance block; 7. clamping assembly; 71. telescopic rod; 72. connecting block; 73. connecting rod; 74. mounting plate; 75. clamping plate; 76. short shaft; 77. clamping plate; 78. triangle block; 79. fork-shaped rod. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0022] See also Figure 1-Figure 5An industrial frequency converter testing device comprises an operating table 1, a detector 2 is installed on the operating table 1, a plurality of connecting wires 21 are connected to the detector 2, a feed chute 3 and a discharge slide 4 are installed on the operating table 1, a feeding device 5 is arranged on the operating table 1, the feeding device 5 comprises a motor 51, the motor 51 is installed on the inner wall of the operating table 1, an output end of the motor 51 is connected to an output shaft 52, an end of the output shaft 52 away from the motor 51 is rotatably connected to the inner wall of the operating table 1, a driven shaft 53 is rotatably installed on the inner wall of the operating table 1, and the output shaft Two conveyor belts 54 are sleeved on the outer walls of 52 and the driven shaft 53, a reciprocating screw 56 is rotatably installed at the bottom of the operating table 1, and a belt 55 is sleeved on the outer wall of the reciprocating screw 56 and the output shaft 52, a loading rack 58 is slidably installed on the inner wall of the operating table 1, and a ball slider 57 is connected to the bottom of the loading rack 58, and two brackets 512 are installed at the bottom of the operating table 1, four sliding shafts 511 are slidably connected to the two brackets 512, the top ends of the four sliding shafts 511 are connected to a support plate 510, and the bottom of the support plate 510 is connected to a convex ball 513. The surface of the reciprocating screw 56 is provided with a reciprocating thread groove, and the ball slider 57 is slidably connected with the reciprocating thread groove on the surface of the reciprocating screw 56 through the ball. When the output shaft 52 rotates, the output shaft 52 drives the reciprocating screw 56 to rotate through the belt 55. When the reciprocating screw 56 rotates, the ball slider 57 drives the loading rack 58 to reciprocate back and forth. Whenever the two conveyor belts 54 rotate a full circle, the loading rack 58 performs a reciprocating back and forth movement. The two conveyor belts 54 are mirror-imaged, and the support plate 510 is located between the two conveyor belts 54. The loading rack 58 is provided with a push plate and a push rod. The loading rack 58 is installed with an inclined surface block 59. The inclined surface block 59 contacts the convex ball 513 when moving. When the inclined surface block 59 moves backward, it contacts the convex ball 513 and lifts the convex ball 513. The convex ball 513 drives the support plate 510 to move upward. The four sliding shafts 511 and the two brackets 512 play a limiting role on the support plate 510. A lever 514 is installed on the conveyor belt 54, and multiple rubber strips 515 are also installed on the conveyor belt 54. A baffle is set at the left end of the feed chute 3. Two through holes are provided on the feed chute 3. The two levers 514 pass through the through holes during movement. When the two conveyor belts 54 rotate, the two levers 514 and the multiple rubber strips 515 move synchronously. When the two levers 514 pass through the two through holes on the feed chute 3 during movement, the two levers 514 contact the bottom of the inverter and lift the inverter to the upper left, so that the lower left corner of the inverter is separated from the baffle of the feed chute 3. When the lower left corner of the inverter contacts the rubber strip 515, due to the large friction between the rubber strip 515 and the inverter, the multiple rubber strips 515 use friction to drive the inverter to move to the left, so that the inverter falls completely on the two conveyor belts 54. At this time, the other inverter slides to the left under the vibration of the feed chute 3 and contacts the baffle.A plurality of vibration teeth 516 are installed on the driven shaft 53, and a spring sheet 31 is installed at the bottom of the feed chute 3. The vibration teeth 516 contact the spring sheet 31 when moving. When the driven shaft 53 rotates, the plurality of vibration teeth 516 rotate. When the vibration teeth 516 rotate, they contact the spring sheet 31 and drive the spring sheet 31 to vibrate. The spring sheet 31 transmits the vibration to the feed chute 3, and the feed chute 3 vibrates to make the frequency converter inside it move to the left. Through the cooperation of the feed chute 3 and the feeding device 5, multiple frequency converters can be placed in the feed chute 3 at one time, and the frequency converters can fall onto the conveyor belt 54 in turn, and then be transported to the detector 2 for detection through the cooperation between the support plate 510 and the feeding rack 58. When the detection is completed, the frequency converter returns to the conveyor belt 54 and slides to the next process through the discharging slide plate 4, achieving the effect of automatic loading and unloading, reducing the operation steps of the staff, reducing the labor intensity of the staff, and the automatic loading and unloading cooperates with the detection of the detector 2, so that the detection frequency is increased, thereby improving the work efficiency.

[0023] For further information, see Figure 6-Figure 7, a wiring assembly 6 is provided on the operating table 1, and the wiring assembly 6 includes a sliding seat 61, the sliding seat 61 is slidably installed on the operating table 1, a mounting shaft 62 is installed on the sliding seat 61, a sliding groove rod 63 is slidably installed on the mounting shaft 62, and a plurality of adjustment blocks 65 are slidably installed on the sliding groove rod 63, a threaded rod 64 is rotatably installed on the sliding seat 61, a threaded groove is provided on the threaded rod 64, and the sliding groove rod 63 is slidably connected with the threaded groove on the threaded rod 64 through a ball bearing, a plurality of connecting wires 21 are respectively sleeved with a plurality of adjustment blocks 65, and the staff sleeves the plurality of connecting wires 21 with the plurality of adjustment blocks 65 in advance, so that the connecting wires 21 are fixed in the adjustment block 65, and the staff can manually adjust the horizontal position of the adjustment block 65, and a handle is provided on the threaded rod 64, and the staff can turn the handle to drive the threaded rod 64 to rotate, and when the threaded rod 64 rotates, the threaded rod 64 drives the sliding groove rod 63 to move up and down, and the staff can adjust the plurality of adjustment blocks 65 through the threaded rod 64. The vertical position, due to the different positions of the wiring ports of different frequency converters, the staff adjusts the multiple adjustment blocks 65 to the corresponding positions in advance according to the positions of the wiring ports of the frequency converters to be tested this time. An arc rod 66 is rotatably installed on the inner wall of the operating table 1. The top of the arc rod 66 is hinged to the sliding seat 61. A resistance block 67 is connected to the loading rack 58. The resistance block 67 contacts the arc rod 66 during movement. A spring is arranged between the sliding seat 61 and the operating table 1. When the resistance block 67 moves backward, it contacts the arc rod 66 and pushes the bottom end of the arc rod 66 backward, so that the arc rod 66 pushes the sliding seat 61 forward through the lever principle. The spring on the sliding seat 61 plays a resetting role. When the push plate on the loading rack 58 pushes the frequency converter to the detection position, the sliding seat 61 moves forward, so that the multiple connecting wires 21 on the multiple adjustment blocks 65 are connected to the wiring port of the frequency converter, so as to achieve the effect of automatic wiring. After the frequency converter is connected to the connecting wire 21 of the detector 2, the detector 2 performs relevant detection on the frequency converter. Through the setting of the wiring assembly 6, when the inverter moves backward and is about to reach the detection position, the multiple adjustment blocks 65 drive the multiple connecting wires 21 to move forward, so that the multiple connecting wires 21 can be connected to the wiring port of the inverter, reducing the operation steps of the staff in wiring, and at the same time reducing the risk of electric shock for the staff during wiring; through the cooperation of the threaded rod 64, the adjustment block 65 and the slide rod 63, the staff can adjust the wiring position according to the inverters of different specifications, thereby enhancing the applicability of the wiring assembly 6.

[0024] For further information, see Figure 8-Figure 9, a clamping assembly 7 is provided on the operating table 1, and the clamping assembly 7 includes two mounting plates 74, both of which are slidably mounted on the inner wall of the operating table 1, and a connecting rod 73 is hinged at the bottom of the mounting plate 74. A telescopic rod 71 is installed at the bottom of the operating table 1, and a spring is arranged inside the telescopic rod 71. The telescopic end of the telescopic rod 71 is connected to a connecting block 72, and the ends of the two connecting rods 73 away from the mounting plate 74 are hinged to the connecting block 72. The loading rack 58 contacts the connecting block 72 during movement, and a clamping plate 75 is connected to the mounting plate 74 through a spring. When the frequency converter is about to move to the detection position, the two clamping plates 75 move in the direction close to the frequency converter until the frequency converter is clamped. Due to the setting of the spring, the two clamping plates 75 can clamp frequency converters of different specifications, and the operation Two short shafts 76 are installed on the platform 1, and two clamping plates 77 are slidably installed on the two short shafts 76. A spring is arranged between the two clamping plates 77. Triangular blocks 78 are respectively installed at both ends of the clamping plates 77. A fork-shaped rod 79 is connected to the mounting plate 74. The two fork-shaped rods 79 contact with the four triangular blocks 78 when moving. When the fork-shaped rod 79 moves in the direction close to the frequency converter, the fork-shaped rod 79 will contact the two triangular blocks 78 and slide along the inclined surfaces of the two triangular blocks 78, so that the two triangular blocks 78 move in the direction close to each other. The four triangular blocks 78 drive the two clamping plates 77 to move in the direction close to the connecting line 21. The two clamping plates 77 clamp the connecting line 21 during the movement to prevent the connection between the connecting line 21 and the detector 2 from falling off and affecting the detection. By setting the clamping assembly 7, when the frequency converter is about to reach the detection position, the two clamping plates 75 move towards the frequency converter until the frequency converter is clamped. While clamping, the two clamping plates 75 can center the frequency converter to avoid the position deviation of the frequency converter and affect the operation of the wiring assembly 6; by the cooperation of the two clamping plates 77, before the detection operation starts, the two clamping plates 77 clamp and fix the front position of the connection between the connecting wire 21 and the detector 2 to avoid the connecting wire 21 from falling off during the detection process, and also reduce the twisting of the connecting wire 21, thereby extending the service life of the connecting wire 21.

[0025] With the above structure, the working principle of this case is that the staff places the inverter to be tested in the feed chute 3 in turn, the stopper on the left side of the feed chute 3 blocks the inverter from sliding to the left, and the motor 51 is started. The motor 51 drives the output shaft 52 to rotate. When the output shaft 52 rotates, it drives the two conveyor belts 54 to rotate. The two conveyor belts 54 drive the driven shaft 53 to rotate. When the driven shaft 53 rotates, it drives multiple vibration teeth 516 to rotate. When the vibration teeth 516 rotate, they contact the spring piece 31 and drive the spring piece 31 to vibrate. The spring piece 31 transmits the vibration to the feed chute 3, and the feed chute 3 vibrates to make the inverter inside it move closer to the left; the two conveyor belts 54 rotate When the two levers 514 and the plurality of rubber strips 515 are moved synchronously, when the two levers 514 pass through the two through holes on the feed chute 3 during the movement, the two levers 514 contact the bottom of the inverter and move the inverter to the upper left, so that the lower left corner of the inverter is separated from the stopper of the feed chute 3. When the lower left corner of the inverter contacts the rubber strip 515, due to the large friction between the rubber strip 515 and the inverter, the plurality of rubber strips 515 use the friction to drive the inverter to move to the left, so that the inverter completely falls on the two conveyor belts 54. At this time, the other inverter slides to the left under the vibration of the feed chute 3 and contacts the stopper.When the output shaft 52 rotates, the output shaft 52 drives the reciprocating screw 56 to rotate through the belt 55. When the reciprocating screw 56 rotates, the loading rack 58 is driven to reciprocate back and forth through the ball slider 57. Whenever the two conveyor belts 54 rotate a full circle, the loading rack 58 reciprocates back and forth. When the loading rack 58 starts to move backward, the loading rack 58 drives the inclined surface block 59 to move synchronously. When the inclined surface block 59 moves backward, it contacts the convex ball 513 and lifts the convex ball 513, and the convex ball 513 drives the support plate 510 to move upward. The four sliding shafts 511 and the two brackets 512 limit the support plate 510. Through the cooperation of the support plate 510, the conveyor belt 54 and the loading rack 58, when the inverter moves to the left on the two conveyor belts 54 to the right side of the support plate 510, the loading rack 58 starts to move backward, and then the support plate 510 moves upward. When the inverter moves to the top of the support plate 510, the upwardly moving support plate 510 contacts the bottom of the inverter and lifts the inverter. After the inverter is out of contact with the two conveyor belts 54, the support plate 510 stops moving. The push plate on the loading rack 58 contacts the front side of the inverter and pushes the inverter backward. When the inverter moves to the detector 2, the detection operation starts. At this time, the motor 51 stops rotating. When the detection operation is completed, the motor 51 continues to rotate. At this time, the loading rack 58 starts to move forward. The push rod on the loading rack 58 contacts the back side of the inverter and pushes the inverter forward. When the inverter is about to contact the support plate 510, the next inverter falls onto the two conveyor belts 54 and starts to move to the left. When the inverter that has finished the detection is connected When it touches the pallet 510, the inclined block 59 moves to the left, causing the convex ball 513 to reset downward, and the convex ball 513 drives the pallet 510 to move downward, so that the inverter that has completed the inspection contacts the two conveyor belts 54 again. At this time, the next inverter is about to move to the right side of the pallet 510, and the loading rack 58 starts to move backward after moving to the front, and the next inverter repeats the above steps. The inverter that has completed the inspection moves to the leftmost side with the conveyor belt 54 and contacts the discharge slide 4, and the inverter slides to the next process with the discharge slide 4. Through the cooperation of the feeding chute 3 and the loading device 5, multiple frequency converters can be placed in the feeding chute 3 at one time, and the frequency converters can fall onto the conveyor belt 54 in sequence, and then be transported to the detector 2 for detection through the cooperation between the support plate 510 and the loading rack 58. After the detection is completed, the frequency converter returns to the conveyor belt 54 and slides to the next process through the discharging slide 4, achieving the effect of automatic loading and unloading, reducing the operating steps of the staff, reducing the labor intensity of the staff, and the automatic loading and unloading cooperates with the detection of the detector 2, so that the detection frequency is increased, thereby improving work efficiency. ;

[0026] When the frequency converter moves to the front of the detector 2, the loading rack 58 drives the resistance block 67 to move backward when it moves backward. When the resistance block 67 moves backward, it contacts the arc rod 66 and pushes the bottom end of the arc rod 66 backward, so that the arc rod 66 pushes the sliding seat 61 forward through the lever principle. When the sliding seat 61 moves, it drives the slide groove rod 63 to move forward through the mounting shaft 62 and the threaded rod 64. The staff members connect the multiple connecting wires 21 with the multiple adjusting blocks 65 in advance, so that the connecting wires 21 are fixed in the adjusting blocks 65. The staff members can manually adjust the horizontal position of the adjusting blocks 65. A handle is provided on the threaded rod 64. The staff members can turn the handle to drive the threaded rod 64 to rotate. When the threaded rod 64 rotates, the threaded rod 64 drives the slide groove rod 63 to move up and down. The staff members can adjust the vertical positions of the multiple adjusting blocks 65 through the threaded rod 64. Due to the different positions of the wiring ports of different frequency converters, the staff members can adjust the vertical positions of the multiple adjusting blocks 65 in advance. According to the position of the inverter wiring port detected this time, multiple adjustment blocks 65 are adjusted to corresponding positions. When the push plate on the loading rack 58 pushes the inverter to the detection position, the sliding seat 61 moves forward, so that the multiple connecting wires 21 on the multiple adjustment blocks 65 are connected to the wiring port of the inverter, so as to achieve the effect of automatic wiring. After the inverter is connected to the connecting wire 21 of the detector 2, the detector 2 performs relevant detection on the inverter; through the setting of the wiring assembly 6, when the inverter moves backward and is about to reach the detection position, the multiple adjustment blocks 65 drive the multiple connecting wires 21 to move forward, so that the multiple connecting wires 21 can be connected to the wiring port of the inverter, which reduces the operation steps of the staff in wiring, and at the same time reduces the risk of electric shock to the staff during wiring; through the cooperation of the threaded rod 64, the adjustment block 65 and the slide groove rod 63, the staff can adjust the wiring position according to the inverters of different specifications, thereby enhancing the applicability of the wiring assembly 6.

[0027] When the loading rack 58 moves backward, the push rod of the loading rack 58 contacts the connecting block 72 and drives the connecting block 72 to move backward. The telescopic rod 71 limits and resets the connecting block 72. When the connecting block 72 moves backward, the connecting block 72 drives the two mounting plates 74 to move in the direction close to each other through the two connecting rods 73. When the mounting plate 74 moves, the clamping plates 75 are driven to move synchronously through the spring, so that the two clamping plates 75 move in the direction close to the frequency converter. When the frequency converter is about to move to the detection position, the two clamping plates 75 move in the direction close to the frequency converter until the frequency converter is clamped. Due to the setting of the spring, the two clamping plates 75 can clamp Inverters of the same specifications; when the two mounting plates 74 move, the two mounting plates 74 respectively drive the two fork-shaped rods 79 to move synchronously. When the fork-shaped rods 79 move toward the inverter, the fork-shaped rods 79 will contact the two triangular blocks 78 and slide along the inclined surfaces of the two triangular blocks 78, so that the two triangular blocks 78 move toward each other, achieving the effect of the four triangular blocks 78 driving the two clamping plates 77 to move toward the direction of the connecting line 21. The two short shafts 76 limit the two clamping plates 77. The two clamping plates 77 clamp the connecting line 21 during movement to prevent the connection between the connecting line 21 and the detector 2 from falling off and affecting the detection. By setting the clamping assembly 7, when the frequency converter is about to reach the detection position, the two clamping plates 75 move towards the frequency converter until the frequency converter is clamped. While clamping, the two clamping plates 75 can center the frequency converter to avoid the position deviation of the frequency converter and affect the operation of the wiring assembly 6; by the cooperation of the two clamping plates 77, before the detection operation starts, the two clamping plates 77 clamp and fix the front position of the connection between the connecting wire 21 and the detector 2 to avoid the connecting wire 21 from falling off during the detection process, and also reduce the twisting of the connecting wire 21, thereby extending the service life of the connecting wire 21.

[0028] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An industrial frequency converter testing device, comprising an operating table (1), characterized in that: The operating table (1) is provided with a detector (2), the detector (2) is connected to a plurality of connecting wires (21), the operating table (1) is provided with a feed chute (3) and a discharge slide plate (4), the operating table (1) is provided with a loading device (5), the loading device (5) comprises a motor (51), the motor (51) is installed on the inner wall of the operating table (1), the output end of the motor (51) is connected to an output shaft (52), the end of the output shaft (52) away from the motor (51) is rotatably connected to the inner wall of the operating table (1), the inner wall of the operating table (1) is rotatably provided with a driven shaft (53), the output shaft (52) and the driven shaft (53) are rotatably connected to each other. Two conveyor belts (54) are sleeved on the outer wall of the shaft (53); a reciprocating screw (56) is rotatably mounted on the bottom of the operating table (1); a belt (55) is sleeved between the reciprocating screw (56) and the outer wall of the output shaft (52); a loading rack (58) is slidably mounted on the inner wall of the operating table (1); a ball slider (57) is connected to the bottom of the loading rack (58); two brackets (512) are mounted on the bottom of the operating table (1); four sliding shafts (511) are slidably connected to the two brackets (512); a support plate (510) is connected to the top of the four sliding shafts (511); a convex ball (513) is connected to the bottom of the support plate (510).

2. The industrial inverter testing device according to claim 1, characterized in that: The surface of the reciprocating screw rod (56) is provided with a reciprocating thread groove, and the ball slider (57) is slidably connected to the reciprocating thread groove on the surface of the reciprocating screw rod (56) via balls.

3. The industrial frequency converter testing device according to claim 2, characterized in that: The two conveyor belts (54) are arranged in a mirror image, the support plate (510) is located between the two conveyor belts (54), a push plate and a push rod are arranged on the loading rack (58), and an inclined surface block (59) is installed on the loading rack (58), and the inclined surface block (59) contacts the convex ball (513) when moving.

4. The industrial frequency converter testing device according to claim 3, characterized in that: A lever (514) is mounted on the conveyor belt (54), and a plurality of rubber strips (515) are also mounted on the conveyor belt (54). A stopper is disposed at the left end of the feed chute (3), and two through holes are provided on the feed chute (3), through which the two levers (514) pass during movement.

5. The industrial inverter testing device according to claim 4, characterized in that: A plurality of vibrating teeth (516) are mounted on the driven shaft (53), a spring sheet (31) is mounted on the bottom of the feed chute (3), and the vibrating teeth (516) are in contact with the spring sheet (31) when moving.

6. The industrial frequency converter testing device according to claim 5, characterized in that: The operating table (1) is provided with a wiring assembly (6), the wiring assembly (6) comprising a sliding seat (61), the sliding seat (61) being slidably mounted on the operating table (1), the sliding seat (61) being provided with a mounting shaft (62), the mounting shaft (62) being provided with a slide groove rod (63) being slidably mounted, the slide groove rod (63) being slidably mounted with a plurality of adjustment blocks (65), the sliding seat (61) being rotatably provided with a threaded rod (64), the threaded rod (64) being provided with a threaded groove, the slide groove rod (63) being slidably connected with the threaded groove on the threaded rod (64) via a ball bearing, and the plurality of connecting wires (21) being respectively sleeved with the plurality of adjustment blocks (65).

7. The industrial inverter testing device according to claim 6, characterized in that: An arc-shaped rod (66) is rotatably mounted on the inner wall of the operating table (1), the top end of the arc-shaped rod (66) is hinged to the sliding seat (61), a resistance block (67) is connected to the loading rack (58), the resistance block (67) contacts the arc-shaped rod (66) when moving, and a spring is arranged between the sliding seat (61) and the operating table (1).

8. The industrial frequency converter testing device according to claim 7, characterized in that: The operating table (1) is provided with a clamping assembly (7), the clamping assembly (7) comprising two mounting plates (74), the two mounting plates (74) being slidably mounted on the inner wall of the operating table (1), the bottom of the mounting plate (74) being hinged with a connecting rod (73), the bottom of the operating table (1) being provided with a telescopic rod (71), the interior of the telescopic rod (71) being provided with a spring, the telescopic end of the telescopic rod (71) being connected with a connecting block (72), the ends of the two connecting rods (73) being away from the mounting plates (74) being hinged with the connecting block (72), the loading rack (58) being in contact with the connecting block (72) during movement, and the mounting plate (74) being connected with a clamping plate (75) via a spring.

9. The industrial inverter testing device according to claim 8, characterized in that: Two short shafts (76) are mounted on the operating table (1), two clamping plates (77) are slidably mounted on the two short shafts (76), a spring is arranged between the two clamping plates (77), triangular blocks (78) are mounted on both ends of the clamping plates (77), a fork-shaped rod (79) is connected to the mounting plate (74), and the two fork-shaped rods (79) are in contact with four triangular blocks (78) when in motion.

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