A distribution box voltage tolerance detection device and method

Abstract

The present invention relates to the technical field of voltage tolerance detection devices, and discloses a distribution box voltage tolerance detection device and method, including a workbench and a detection head, wherein a central axis is rotatably installed on the workbench, a support plate is fixedly installed on the upper end of the central axis, and clamping disks are movably provided at both ends of the support plate; the distribution box voltage tolerance detection device, by arranging the central axis, the support plate and the clamping disk, can quickly move another distribution box circuit board to the bottom of the detection head for detection by rotating the support plate after the detection of one distribution box circuit board is completed, thereby reducing the detection interval; at the same time, by arranging an automatic clamping mechanism, when the clamping disk moves from a position away from the detection head toward the direction of the detection head, the clamping plate automatically clamps the distribution box circuit board, and when the clamping disk moves from the bottom of the detection head to the direction away from the detection head, the clamping plate automatically releases the distribution box circuit board, so that the clamping of the distribution box circuit board does not require manual intervention.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage tolerance detection devices, and in particular to a voltage tolerance detection device and method for a distribution box. Background Art

[0002] A distribution box is generally composed of a closed or semi-closed metal cabinet and switchgear, measuring equipment, electrical equipment, protective electrical appliances and auxiliary equipment installed inside the metal cabinet. Among them, the distribution box circuit board is an important electrical component in the distribution box. The distribution box circuit board can be divided into control circuit boards, protection circuit boards, measuring circuit boards and communication circuit boards according to their functions. When conducting voltage tolerance testing on the distribution box, the voltage tolerance testing of various circuit boards is the focus. Therefore, before the distribution box is assembled, the distribution box circuit board will be tested, and the entire distribution box will be tested after the assembly is completed.

[0003] Chinese patent CN116819258B discloses a voltage tolerance detection device for a distribution box, which provides a device for performing voltage tolerance detection on a circuit board of a distribution box. The circuit board is fixed by a clamping component, and a first driving component is used to move the contacts on the circuit board to be directly below the detection probe.

[0004] When using the above device, it is necessary to manually pull apart the first clamping plate and the second clamping plate. Due to the high error rate of manual operation, it is easy to loosen the first clamping plate and the second clamping plate when placing the distribution box circuit board before the distribution box circuit board is properly placed. As a result, the circuit board is clamped before it is properly placed, resulting in inaccurate clamping position. At the same time, the detection head stops working when removing the distribution box circuit board and installing the distribution box circuit board between the clamping plates. Due to the high precision requirements of the circuit board, the placement and removal of the circuit board need to be carried out at a stable speed to avoid collision and damage to the circuit board. Therefore, the detection efficiency of the device will be affected. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the deficiencies in the prior art, the present invention provides a distribution box voltage tolerance detection device and method, which has the advantages of no need for manual control to clamp the distribution box circuit board and short working intervals of the detection head, thereby solving the problems mentioned in the above background technology.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A voltage withstand test device for a distribution box includes a workbench and a test head. A central shaft is rotatably mounted on the workbench, a support plate is fixedly mounted on the upper end of the central shaft, and clamping plates are movably provided at both ends of the support plate.

[0010] The support plate is provided with a position adjustment mechanism, which includes a symmetrical movement component and a reverse movement component. The symmetrical movement component is used to control the horizontal linear movement of the clamping plate parallel to the length direction of the support plate, and the reverse movement component is used to control the horizontal linear movement of the clamping plate parallel to the width direction of the support plate. The relative clamping plates always maintain reverse movement.

[0011] The clamping disc is provided with an automatic clamping mechanism, which includes a clamping plate, a lifting turn block, a rotating plate and a positioning lifting component. The clamping plate is horizontally slidably mounted on the top of the clamping disc, and the lifting turn block is vertically slidably mounted inside the clamping disc. The two ends of the rotating plate are respectively rotatably connected to the clamping plate and the lifting turn block. The positioning lifting component is used to control the height of the lifting turn block.

[0012] An electric push rod is fixedly mounted on the upper end of the detection head, a support rod is fixedly mounted on the mounting end of the electric push rod, and the support rod is fixedly mounted on one end of the upper surface of the workbench;

[0013] A driving motor for driving the central shaft to rotate is installed inside the workbench.

[0014] Preferably, the positioning and lifting component includes a vertical guide rod, a sliding sleeve, a translation slide rod and a lifting slide rod, the two ends of the vertical guide rod are respectively fixedly connected to the upper and lower ends inside the clamping disk, the two side walls of the sliding sleeve are provided with horizontal sliding holes, and the upper and lower ends of the outer wall of the sliding sleeve are fixedly installed with sliding plates, the sliding plates are slidably connected to the vertical guide rod on the same side, the translation slide rod is arranged inside the sliding sleeve, and the two ends of the translation slide rod are slidably connected to the horizontal sliding hole, the lifting slide rod is vertically slidably installed at the end of the support plate, and the upper end of the lifting slide rod is slidably connected to the translation slide rod, the bottom of the clamping disk is provided with a sliding notch, and the lifting slide rod is movably arranged on the inner side of the sliding notch.

[0015] Preferably, the positioning and lifting component also includes a rolling wheel and a tilting ring, the mounting end of the rolling wheel is fixedly connected to the lower surface of the lifting slide rod, the tilting ring is fixedly mounted on the upper surface of the workbench, and the axis of the tilting ring coincides with the axis of the central axis, the rolling wheel rolls on the upper surface of the tilting ring, the upper surface of the tilting ring is set as an inclined annular surface, and the highest point of the annular surface is directly below the detection head.

[0016] Preferably, the lifting and rotating block is slidably mounted on the vertical guide rod, and a pressure-reducing spring is fixedly mounted between the lifting and rotating block and the sliding plate below.

[0017] Preferably, a connecting hole is provided on the upper surface of the clamping disk, the lower end of the clamping plate passes through the connecting hole and extends into the interior of the clamping disk, a short guide rod is fixedly mounted on the inner side wall of the clamping disk, and the clamping plate is slidably mounted on the short guide rod.

[0018] Preferably, the symmetrical moving assembly includes a horizontal slide, a bidirectional screw, a horizontal guide rod and a symmetrical adjusting motor, the lower end of the horizontal slide is fixedly mounted with a threaded slider and a guide slider, and the horizontal slide is slidably connected to the bottom of the clamping disk, the bidirectional screw is threadedly connected to the threaded slider, and the bidirectional screw is rotatably mounted on the lower surface of the support plate, the horizontal guide rod is slidably connected to the guide slider, and the horizontal guide rod is fixedly mounted on the lower surface of the support plate, sliding holes are symmetrically opened at both ends of the support plate, the threaded slider and the guide slider respectively pass through the corresponding sliding holes and extend to the bottom of the support plate, a motor mounting plate is fixedly mounted on the lower surface of the support plate, the symmetrical adjusting motor is mounted inside the motor mounting plate, and the driving end of the symmetrical adjusting motor is connected to the bidirectional screw through a transmission pulley.

[0019] Preferably, the reverse movement assembly includes a fixed rod, a sliding sleeve, a threaded mounting block, a screw rod, a transmission shaft and a reverse adjustment motor, the fixed rod is fixedly mounted on an outer wall of one side of the clamping disk, the sliding sleeve is slidably mounted on the fixed rod, the threaded mounting block is fixedly mounted on the lower surface of the sliding sleeve, the screw rod is threadedly connected to the threaded mounting block, and both ends of the screw rod are rotatably mounted on the upper surface of the support plate, the two ends of the transmission shaft respectively rotate through the inner walls on both sides of the motor mounting plate and extend to the outside of the motor mounting plate, and the two ends of the transmission shaft are respectively connected to one of the screw rods through a transmission pulley, the reverse adjustment motor is fixedly mounted inside the motor mounting plate, and the driving end of the reverse adjustment motor is connected to one of the screw rods through a transmission pulley.

[0020] Preferably, an insulating clamp is fixedly mounted on the upper end of the clamping plate, and an insulating pad is provided at the middle position of the upper surface of the clamping disk.

[0021] Preferably, an annular track is fixedly installed on the upper surface of the workbench, an annular slider is slidably installed on the annular track, the upper end of the annular slider is fixedly connected to the lower surface of the support plate, and the axis of the annular track coincides with the axis of the central axis.

[0022] The present invention also discloses a method for detecting voltage tolerance of a distribution box, which specifically comprises the following steps:

[0023] According to the position of the contact point on the circuit board for contacting the detection head, the position of the clamping disk is adjusted by the position adjustment mechanism;

[0024] Place the distribution box circuit board to be tested on the clamping plate away from the detection head, and ensure that the direction of the circuit board is the same each time;

[0025] The supporting plate is driven by the driving motor to rotate half a circle, so that the circuit board moves to the bottom of the detection head;

[0026] The electric push rod controls the detection head to descend so that the detection head contacts the contact points on the circuit board. After the detection is completed, the electric push rod drives the detection head to rise and move away from the circuit board.

[0027] As the clamping disc approaches the detection head, the automatic clamping mechanism pushes the clamping plate to clamp the circuit board and moves the circuit board to a position where the contact point is directly opposite the lower end of the detection head. As the clamping disc moves away from the detection head, the automatic clamping mechanism gradually relaxes. When one clamping disc moves directly below the detection head, the circuit board clamped on the other clamping disc is completely released and can be removed directly.

[0028] (3) Beneficial effects

[0029] Compared with the prior art, the present invention provides a distribution box voltage tolerance detection device and method, which has the following beneficial effects:

[0030] 1. The distribution box voltage tolerance detection device is provided with a central axis, a support plate and a clamping plate. After the detection of one distribution box circuit board is completed, the other distribution box circuit board can be quickly moved to the bottom of the detection head for detection by rotating the support plate, thereby reducing the detection interval. At the same time, by providing an automatic clamping mechanism, when the clamping plate moves from a position away from the detection head toward the detection head, the clamping plate automatically clamps the distribution box circuit board, and when the clamping plate moves from the bottom of the detection head to the direction away from the detection head, the clamping plate automatically releases the distribution box circuit board, so that the clamping of the distribution box circuit board does not require manual participation. It is only necessary to place the distribution box circuit board flat on the upper surface of the clamping plate, thereby avoiding the situation where the distribution box circuit board is not clamped accurately.

[0031] 2. The voltage tolerance test device for the distribution box is equipped with a clamping plate, a lifting turn block, a rotating plate, a lifting slide bar, a rolling wheel and a tilting ring. When the clamping plate approaches the detection head, the rolling wheel pushes the lifting slide bar to rise, so that the rotating plate pushes the clamping plates closer to each other, thereby allowing the clamping plates to clamp and fix the distribution box circuit board. When the clamping plate is away from the detection head, the rotating plate pushes the clamping plates away from each other, thereby allowing the clamping plates to loosen the distribution box circuit board. Therefore, when placing and taking the circuit board, the distribution box circuit board does not need to contact the clamping plate.

[0032] 3. The distribution box voltage tolerance test device can adjust the horizontal position of the clamping plate by setting a symmetrical moving component, a reverse moving component, a vertical guide rod, a sliding sleeve and a translation slide rod, so that the distribution box circuit boards with different contact positions can be aligned with the contact end of the test head, thereby facilitating the detection of the voltage tolerance performance of the distribution box circuit boards of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is one of the three-dimensional structural cross-sectional views of the distribution box voltage tolerance detection device of the present invention;

[0034] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure at point A in the middle;

[0035] Figure 3 This is the second sectional view of the three-dimensional structure of the voltage tolerance detection device for a distribution box of the present invention;

[0036] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B in the middle;

[0037] Figure 5 This is a schematic diagram of the three-dimensional structure of the voltage tolerance detection device for a distribution box of the present invention;

[0038] Figure 6 This is the third sectional view of the three-dimensional structure of the voltage tolerance detection device for a distribution box of the present invention;

[0039] Figure 7 This is the second schematic diagram of the three-dimensional structure of the voltage tolerance detection device for a distribution box of the present invention;

[0040] Figure 8 This is the third schematic diagram of the three-dimensional structure of the distribution box voltage tolerance detection device of the present invention.

[0041] In the picture:

[0042] 1. Workbench; 11. Center axis; 12. Drive motor; 13. Circular track;

[0043] 2. Support plate; 21. Sliding hole; 22. Motor mounting plate; 23. Annular slider;

[0044] 3. Clamping plate; 31. Sliding notch; 32. Connecting hole; 33. Short guide rod; 34. Insulating chuck; 35. Insulating pad;

[0045] 4. Position adjustment mechanism; 41. Symmetrical movement assembly; 411. Horizontal slide; 412. Bidirectional screw; 413. Horizontal guide rod; 414. Threaded slider; 415. Guide slider; 416. Symmetrical adjustment motor; 42. Reverse movement assembly; 421. Fixed rod; 422. Sliding sleeve; 423. Threaded mounting block; 424. Screw; 425. Drive shaft; 426. Reverse adjustment motor;

[0046] 5. Automatic clamping mechanism; 51. Clamping plate; 52. Lifting block; 53. Turning plate; 54. Positioning and lifting components; 541. Vertical guide rod; 542. Sliding sleeve; 543. Translational slide rod; 544. Lifting slide rod; 545. Horizontal slide hole; 546. Slide plate; 547. Rolling wheel; 548. Tilt ring; 549. Pressure-reducing spring;

[0047] 6. Detection head; 61. Electric push rod; 62. Support rod. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] Example 1

[0050] See also Figure 1 、 Figure 3 、 Figure 7 and Figure 8 The present invention provides a distribution box voltage tolerance test device, comprising a workbench 1 and a test head 6, wherein a central shaft 11 is rotatably mounted on the workbench 1, a support plate 2 is fixedly mounted on the upper end of the central shaft 11, and clamping plates 3 are movably provided at both ends of the support plate 2;

[0051] A position adjustment mechanism 4 is provided on the support plate 2. The position adjustment mechanism 4 includes a symmetrical movement component 41 and a reverse movement component 42. The symmetrical movement component 41 is used to control the horizontal linear movement of the clamping plate 3 parallel to the length direction of the support plate 2. The reverse movement component 42 is used to control the horizontal linear movement of the clamping plate 3 parallel to the width direction of the support plate 2. The relative clamping plates 3 always maintain reverse movement.

[0052] The clamping disc 3 is provided with an automatic clamping mechanism 5, which includes a clamping plate 51, a lifting rotating block 52, a rotating plate 53 and a positioning lifting component 54. The clamping plate 51 is horizontally slidably mounted on the top of the clamping disc 3, and the lifting rotating block 52 is vertically slidably mounted inside the clamping disc 3. The two ends of the rotating plate 53 are rotatably connected to the clamping plate 51 and the lifting rotating block 52 respectively. The positioning lifting component 54 is used to control the height of the lifting rotating block 52.

[0053] An electric push rod 61 is fixedly mounted on the upper end of the detection head 6, and a support rod 62 is fixedly mounted on the mounting end of the electric push rod 61. The support rod 62 is fixedly mounted on one end of the upper surface of the workbench 1;

[0054] A driving motor 12 for driving the central shaft 11 to rotate is installed inside the workbench 1 .

[0055] As can be seen from the above, the distribution box voltage tolerance detection device, by setting the central axis 11, the support plate 2 and the clamping plate 3, can quickly move another distribution box circuit board to the bottom of the detection head 6 for detection by rotating the support plate 2 after the detection of one distribution box circuit board is completed, thereby reducing the detection interval. At the same time, by setting the automatic clamping mechanism 5, when the clamping plate 3 moves from a position away from the detection head 6 to the direction of the detection head 6, the clamping plate 51 automatically clamps the distribution box circuit board, and when the clamping plate 3 moves from the bottom of the detection head 6 to the direction away from the detection head 6, the clamping plate 51 automatically releases the distribution box circuit board, so that the clamping of the distribution box circuit board does not require manual participation, and only the distribution box circuit board needs to be placed flat. The clamping plate 51 is moved to the upper surface of the clamping plate 3 to avoid the situation where the distribution box circuit board is not clamped correctly. Since the automatic clamping mechanism 5 includes a clamping plate 51, a lifting turn block 52, a rotating plate 53 and a positioning lifting component 54, when the clamping plate 3 approaches and moves away from the detection head 6, the positioning lifting component 54 pushes the rotating plate 53 to rotate, so that the clamping plate 51 slides linearly, thereby achieving the function of the clamping plate 51 clamping and releasing the distribution box circuit board; in addition, by providing a symmetrical moving component 41 and a reverse moving component 42, the horizontal position of the clamping plate 3 can be adjusted, so that the distribution box circuit board with different contact positions can be aligned with the contact end of the detection head 6, thereby facilitating the detection of the voltage tolerance performance of the distribution box circuit boards of different models;

[0056] When using the device, the position of the clamping disk 3 is adjusted by the position adjustment mechanism 4 according to the position of the contact for contacting the detection head 6 on the circuit board; the distribution box circuit board to be tested is placed on the clamping disk 3 away from the detection head 6, and it is ensured that the direction of the circuit board is placed is the same each time; the support plate 2 is driven by the driving motor 12 to rotate half a circle so that the circuit board moves to the bottom of the detection head 6; the detection head 6 is controlled to descend by the electric push rod 61 so that the detection head 6 is in pressure contact with the contacts on the circuit board. After the detection is completed, the electric push rod 61 drives the detection head 6 to rise away from the circuit board; in the process of the clamping disk 3 approaching the detection head 6, the automatic clamping mechanism 5 pushes the clamping plate 51 to clamp the circuit board and move the circuit board to a position where the contacts are directly opposite to the lower end of the detection head 6. In the process of the clamping disk 3 moving away from the detection head 6, the automatic clamping mechanism 5 gradually relaxes. When one clamping disk 3 moves to directly below the detection head 6, the circuit board clamped on the other clamping disk 3 is completely released and can be taken down directly.

[0057] Example 2

[0058] like Figure 1 and Figure 2 As shown, the difference between this embodiment and the above embodiment is that the positioning and lifting component 54 includes a vertical guide rod 541, a sliding sleeve 542, a translation slide rod 543 and a lifting slide rod 544, the two ends of the vertical guide rod 541 are respectively fixedly connected to the upper and lower ends inside the clamping disk 3, the two side walls of the sliding sleeve 542 are provided with horizontal sliding holes 545, and the upper and lower ends of the outer side wall of the sliding sleeve 542 are fixedly installed with slides 546, the slides 546 are slidably connected to the vertical guide rod 541 on the same side, the translation slide rod 543 is arranged inside the sliding sleeve 542, and the two ends of the translation slide rod 543 are slidably connected to the horizontal sliding holes 545, the lifting slide rod 544 is vertically slidably installed at the end of the support plate 2, and the upper end of the lifting slide rod 544 is slidably connected to the translation slide rod 543, the bottom of the clamping disk 3 is provided with a sliding notch 31, and the lifting slide rod 544 is movably arranged on the inner side of the sliding notch 31.

[0059] Since the lifting slide 544 is slidably connected to the support plate 2 and is also slidably connected to the translation slide 543, and the translation slide 543 is slidably installed inside the sliding sleeve 542, the lifting slide 544 can push the sliding sleeve 542 to move up and down when it moves up and down, and the sliding sleeve 542 will not be restricted by the lifting slide 544 when it moves horizontally in a straight line parallel to the length direction of the support plate 2 and in a straight line parallel to the width direction of the support plate 2; when the sliding sleeve 542 moves up and down, it drives the slide 546 to move along the length direction of the vertical guide rod 541, and the slide 546 will push the lifting turn block 52 to move up and down, thereby causing the turn plate 53 to rotate, driving the splints 51 to move closer or farther away from each other.

[0060] The positioning and lifting component 54 also includes a rolling wheel 547 and a tilting ring 548. The mounting end of the rolling wheel 547 is fixedly connected to the lower surface of the lifting slide 544. The tilting ring 548 is fixedly mounted on the upper surface of the workbench 1, and the axis of the tilting ring 548 coincides with the axis of the central axis 11. The rolling wheel 547 rolls on the upper surface of the tilting ring 548. The upper surface of the tilting ring 548 is set as an inclined annular surface, and the highest point of the annular surface is directly below the detection head 6.

[0061] It can be seen from the above that when the rolling wheel 547 approaches the high point of the tilting ring 548, the lifting slide 544 moves upward, and when the rolling wheel 547 approaches the low point of the tilting ring 548, the lifting slide 544 moves downward. Since the highest point of the inclined annular surface set on the upper surface of the tilting ring 548 is directly below the detection head 6, when the clamping plate 3 approaches the detection head 6, the lifting slide 544 moves upward, driving the clamping plates 51 to approach each other to clamp the distribution box circuit board, and when the clamping plate 3 is away from the detection head 6, the clamping plates 51 move away from each other to release the distribution box circuit board.

[0062] The lifting block 52 is slidably mounted on the vertical guide rod 541 , and a pressure-reducing spring 549 is fixedly mounted between the lifting block 52 and the sliding plate 546 below.

[0063] From the above, it can be seen that when the length or width of the distribution box circuit board is large, the clamping plate 51 cannot move to the closest position to each other when clamping the distribution box circuit board. By setting the pressure reducing spring 549, when the clamping pressure reaches a certain level, the rotation angle of the rotating plate 53 can be reduced by the compression of the pressure reducing spring 549, so that the clamping spacing of the clamping plate 51 is increased, thereby avoiding damage to the distribution box circuit board.

[0064] A connecting hole 32 is provided on the upper surface of the clamping disk 3. The lower end of the clamping plate 51 passes through the connecting hole 32 and extends into the interior of the clamping disk 3. A guide short rod 33 is fixedly installed on the inner side wall of the clamping disk 3. The clamping plate 51 is slidably installed on the guide short rod 33.

[0065] As can be seen from the above, the connecting hole 32 and the guide short rod 33 are provided to limit and guide the clamping plate 51, thereby preventing the clamping plate 51 from tilting, turning over, etc. when moving.

[0066] Example 3

[0067] like Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, the difference between this embodiment and the above embodiment is that the symmetrical moving assembly 41 includes a horizontal slide 411, a bidirectional screw 412, a horizontal guide rod 413 and a symmetrical adjustment motor 416, the lower end of the horizontal slide 411 is fixedly mounted with a threaded slider 414 and a guide slider 415, and the horizontal slide 411 is slidably connected to the bottom of the clamping plate 3, the bidirectional screw 412 is threadedly connected to the threaded slider 414, and the bidirectional screw 412 is rotatably mounted on the lower surface of the support plate 2, the horizontal guide rod 413 is slidably connected to the guide slider 415, and the horizontal guide rod 413 is fixedly mounted on the lower surface of the support plate 2, sliding holes 21 are symmetrically opened at both ends of the support plate 2, the threaded slider 414 and the guide slider 415 respectively penetrate the corresponding sliding holes 21 and extend to the bottom of the support plate 2, the motor mounting plate 22 is fixedly mounted on the lower surface of the support plate 2, the symmetrical adjustment motor 416 is mounted inside the motor mounting plate 22, and the driving end of the symmetrical adjustment motor 416 is connected to the bidirectional screw 412 through a transmission pulley.

[0068] As can be seen from the above, when the bidirectional screw 412 is controlled by the symmetrical adjustment motor 416, it can drive the threaded slider 414 to slide linearly, so that the two horizontal slides 411 move in opposite directions at the same speed.

[0069] The reverse movement assembly 42 includes a fixed rod 421, a sleeve 422, a threaded mounting block 423, a screw rod 424, a transmission shaft 425 and a reverse adjustment motor 426. The fixed rod 421 is fixedly mounted on one side outer wall of the clamping disk 3, the sleeve 422 is slidably mounted on the fixed rod 421, the threaded mounting block 423 is fixedly mounted on the lower surface of the sleeve 422, the screw rod 424 is threadedly connected to the threaded mounting block 423, and both ends of the screw rod 424 are rotatably mounted on the upper surface of the support plate 2, the two ends of the transmission shaft 425 respectively rotate through the inner walls on both sides of the motor mounting plate 22 and extend to the outside of the motor mounting plate 22, and the two ends of the transmission shaft 425 are respectively connected to one of the screw rods 424 through a transmission pulley, the reverse adjustment motor 426 is fixedly mounted on the inside of the motor mounting plate 22, and the driving end of the reverse adjustment motor 426 is connected to one of the screw rods 424 through a transmission pulley.

[0070] As can be seen from the above, when the reverse adjustment motor 426 controls the transmission shaft 425 to rotate, the two screw rods 424 can rotate in the same direction and at the same speed. By setting the threads on the two screw rods 424 in opposite directions, the two clamping plates 3 can move in opposite directions and at the same speed.

[0071] Example 4

[0072] like Figure 2 and Figure 4 As shown, the difference between this embodiment and the above embodiment is that an insulating clamp 34 is fixedly mounted on the upper end of the clamping plate 51 , and an insulating pad 35 is provided in the middle position of the upper surface of the clamping plate 3 .

[0073] As can be seen from the above, by providing the insulating clamp 34 and the insulating pad 35 , it is prevented that electricity is transferred to the workbench 1 through the clamping plate 3 when the voltage withstand test is performed on the distribution box circuit board.

[0074] Example 5

[0075] like Figure 3 and Figure 5 As shown, the difference between this embodiment and the above embodiment is that a circular track 13 is fixedly installed on the upper surface of the workbench 1, and a circular slider 23 is slidably installed on the circular track 13. The upper end of the circular slider 23 is fixedly connected to the lower surface of the support plate 2, and the axis of the circular track 13 coincides with the axis of the central axis 11.

[0076] As can be seen from the above, the annular track 13 and the annular slider 23 are provided to stabilize the support plate 2 and reduce the shaking of the support plate 2 .

[0077] Example 6

[0078] See also Figure 1 - Figure 8 The present invention also discloses a method for detecting voltage tolerance of a distribution box, the specific steps of which are:

[0079] The position of the clamping plate 3 is adjusted by the position adjustment mechanism 4 according to the position of the contact point on the circuit board for contact with the detection head 6;

[0080] Place the distribution box circuit board to be tested on the clamping plate 3 away from the test head 6, and ensure that the direction of the circuit board is the same each time;

[0081] The support plate 2 is driven by the driving motor 12 to rotate half a circle, so that the circuit board moves to the bottom of the detection head 6;

[0082] The electric push rod 61 controls the detection head 6 to descend so that the detection head 6 contacts the contact points on the circuit board under pressure. After the detection is completed, the electric push rod 61 drives the detection head 6 to rise away from the circuit board.

[0083] As the clamping disk 3 approaches the detection head 6, the automatic clamping mechanism 5 pushes the clamping plate 51 to clamp the circuit board and moves the circuit board to a position where the contact is opposite the lower end of the detection head 6. As the clamping disk 3 moves away from the detection head 6, the automatic clamping mechanism 5 gradually relaxes. When one clamping disk 3 moves to directly below the detection head 6, the circuit board clamped on the other clamping disk 3 is completely released and can be taken down directly.

[0084] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A distribution box voltage tolerance test device, comprising a workbench and a test head, characterized in that: A central shaft is rotatably mounted on the workbench, a support plate is fixedly mounted on the upper end of the central shaft, and clamping disks are movably mounted on both ends of the support plate; The support plate is provided with a position adjustment mechanism, which includes a symmetrical movement component and a reverse movement component. The symmetrical movement component is used to control the horizontal linear movement of the clamping plate parallel to the length direction of the support plate, and the reverse movement component is used to control the horizontal linear movement of the clamping plate parallel to the width direction of the support plate. The relative clamping plates always maintain reverse movement. The clamping disc is provided with an automatic clamping mechanism, which includes a clamping plate, a lifting turn block, a rotating plate and a positioning lifting component. The clamping plate is horizontally slidably mounted on the top of the clamping disc, and the lifting turn block is vertically slidably mounted inside the clamping disc. The two ends of the rotating plate are respectively rotatably connected to the clamping plate and the lifting turn block. The positioning lifting component is used to control the height of the lifting turn block. An electric push rod is fixedly mounted on the upper end of the detection head, a support rod is fixedly mounted on the mounting end of the electric push rod, and the support rod is fixedly mounted on one end of the upper surface of the workbench; A driving motor for driving the central shaft to rotate is installed inside the workbench; Material toggling mechanism, its both ends are connected with the up-down knob. The knob is on top of the knob. The knob is in the middle of the knob. The knob is in the middle of the knob. The knob is in the middle of the knob. The knob is in the middle of the knob. The knob is in the middle of the knob.

2. A distribution box voltage tolerance detection device according to claim 1, characterized in that: The positioning and lifting component also includes a rolling wheel and a tilting ring. The mounting end of the rolling wheel is fixedly connected to the lower surface of the lifting slide rod. The tilting ring is fixedly mounted on the upper surface of the workbench, and the axis of the tilting ring coincides with the axis of the central axis. The rolling wheel rolls on the upper surface of the tilting ring. The upper surface of the tilting ring is set as an inclined annular surface, and the highest point of the annular surface is directly below the detection head.

3. The voltage tolerance detection device for a distribution box according to claim 1, characterized in that: The lifting and rotating block is slidably mounted on the vertical guide rod, and a pressure-reducing spring is fixedly mounted between the lifting and rotating block and the sliding plate below.

4. The voltage tolerance detection device for a distribution box according to claim 1, characterized in that: A connecting hole is provided on the upper surface of the clamping disk, and the lower end of the clamping plate passes through the connecting hole and extends into the interior of the clamping disk. A guide short rod is fixedly installed on the inner side wall of the clamping disk, and the clamping plate is slidably installed on the guide short rod.

5. The voltage tolerance detection device for a distribution box according to claim 1, characterized in that: The symmetrical moving assembly includes a horizontal slide, a bidirectional screw, a horizontal guide rod and a symmetrical adjusting motor. The lower end of the horizontal slide is fixedly mounted with a threaded slider and a guide slider, and the horizontal slide is slidably connected to the bottom of the clamping plate. The bidirectional screw is threadedly connected to the threaded slider, and the bidirectional screw is rotatably mounted on the lower surface of the support plate. The horizontal guide rod is slidably connected to the guide slider, and the horizontal guide rod is fixedly mounted on the lower surface of the support plate. Sliding holes are symmetrically opened at both ends of the support plate, and the threaded slider and guide slider respectively pass through the corresponding sliding holes and extend to the bottom of the support plate. A motor mounting plate is fixedly mounted on the lower surface of the support plate, and the symmetrical adjusting motor is mounted inside the motor mounting plate, and the driving end of the symmetrical adjusting motor is connected to the bidirectional screw through a transmission pulley.

6. A distribution box voltage tolerance detection device according to claim 5, characterized in that: The reverse movement assembly includes a fixed rod, a sliding sleeve, a threaded mounting block, a screw rod, a transmission shaft and a reverse adjustment motor. The fixed rod is fixedly mounted on an outer wall of one side of the clamping disk, the sliding sleeve is slidably mounted on the fixed rod, the threaded mounting block is fixedly mounted on the lower surface of the sliding sleeve, the screw rod is threadedly connected to the threaded mounting block, and both ends of the screw rod are rotatably mounted on the upper surface of the support plate, the two ends of the transmission shaft respectively rotate through the inner walls on both sides of the motor mounting plate and extend to the outside of the motor mounting plate, and the two ends of the transmission shaft are respectively connected to one of the screw rods through a transmission pulley, the reverse adjustment motor is fixedly mounted inside the motor mounting plate, and the driving end of the reverse adjustment motor is connected to one of the screw rods through a transmission pulley.

7. The voltage tolerance detection device for a distribution box according to claim 1, characterized in that: An insulating clamp is fixedly mounted on the upper end of the clamping plate, and an insulating pad is provided at the middle position of the upper surface of the clamping disk.

8. The voltage tolerance detection device for a distribution box according to claim 1, characterized in that: An annular track is fixedly installed on the upper surface of the workbench, an annular slider is slidably installed on the annular track, the upper end of the annular slider is fixedly connected to the lower surface of the support plate, and the axis of the annular track coincides with the axis of the central shaft.

9. A method for detecting voltage tolerance of a distribution box, using a device for detecting voltage tolerance of a distribution box according to any one of claims 1 to 8, characterized in that: The specific steps are: According to the position of the contact point on the circuit board for contacting the detection head, the position of the clamping disk is adjusted by the position adjustment mechanism; Place the distribution box circuit board to be tested on the clamping plate away from the detection head, and ensure that the direction of the circuit board is the same each time; The supporting plate is driven by the driving motor to rotate half a circle, so that the circuit board moves to the bottom of the detection head; The electric push rod controls the detection head to descend so that the detection head contacts the contact points on the circuit board. After the detection is completed, the electric push rod drives the detection head to rise and move away from the circuit board. As the clamping disc approaches the detection head, the automatic clamping mechanism pushes the clamping plate to clamp the circuit board and moves the circuit board to a position where the contact point is directly opposite the lower end of the detection head. As the clamping disc moves away from the detection head, the automatic clamping mechanism gradually relaxes. When one clamping disc moves directly below the detection head, the circuit board clamped on the other clamping disc is completely released and can be removed directly.

Images