Power supply test fixture for circuit board

Abstract

The utility model relates to the technical field of circuit board power supply testing, in particular to a circuit board power supply testing jig, which comprises a jig base, buffering and damping mechanisms are arranged on the surfaces of the jig base and a lifting plate, and positioning and placing mechanisms are arranged in a testing table. And clamping anti-falling mechanisms are arranged in the jig base and on the surface of the wiring port. According to the utility model, the phenomenon that the test of the circuit board is not accurate enough due to the displacement of the circuit board in the use process of the power supply test fixture is avoided, so that the impact force generated when the lifting plate is pressed down can be reduced when the power supply test fixture is used, and the buffering and damping of the power supply test fixture are better when the power supply test fixture is used; and when the power supply test fixture is used, the wiring port can be clamped on the surface of the plug, so that the phenomenon that the wiring port is loosened from the interior of the plug in the use process of the power supply test fixture and the circuit board cannot be continuously tested is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board power supply testing, in particular to a circuit board power supply testing fixture. Background Art

[0002] To ensure the quality of electronic products, voltage, current and other indicators must be inspected and tested after production. Some manufacturers use ATE equipment for power supply testing. ATE is an automatic test system suitable for comprehensive performance testing of AC input / DC output switching power supply products. A circuit board power supply test fixture is now needed.

[0003] The current power supply test fixtures are all for single board testing, and each single board needs to be picked up and placed once. This multiple picking and placing is a worthless operation and reduces work efficiency. In addition, the existing power supply test fixtures have some shortcomings to a certain extent. In order to make the power supply test fixture test the circuit board more accurately, the circuit board needs to be positioned and placed. The existing power supply test fixtures usually do not have the function of positioning and placing the circuit board when in use, which easily leads to the displacement of the circuit board during the use of the power supply test fixture, resulting in the phenomenon of inaccurate testing of the circuit board; the power supply test fixture needs to be raised when in use. The lowering plate is used for buffering and shock absorption. The existing power supply test fixture cannot buffer and shock absorption for the lifting plate when in use, which increases the impact force generated when the lifting plate is pressed down when the power supply test fixture is in use, and reduces the buffering and shock absorption when the power supply test fixture is in use; the plug of the power supply test fixture is prone to loosening when in use. The existing power supply test fixture cannot prevent the plug from loosening when in use, which makes it impossible for the power supply test fixture to clamp the wiring port on the surface of the plug when in use, which easily causes the wiring port to loosen from the inside of the plug during use of the power supply test fixture, resulting in the inability to continue testing the circuit board. Utility Model Content

[0004] The purpose of the present utility model is to provide a power supply test fixture for a circuit board, so as to solve the problems in the above-mentioned background technology that the power supply test fixture usually does not have the function of positioning the circuit board when in use, cannot buffer and shock the lifting plate, and cannot prevent the plug from loosening.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit board power supply test fixture, comprising a fixture base, a fixing frame is installed on the surface at the top position of the fixture base, a power supply box is installed on the surface of the fixture base, a controller is provided on one side of the fixture base, the controller is connected to the fixture base, a rotating handle is provided on the surface of the fixing frame, a frame body is installed on the surface of the fixing frame by screws, the frame body and the surface of the rotating handle are rotatably matched with each other, a lifting plate is provided on the surface of the frame body, the lifting plate and the inner wall of the frame body are rotatably matched with each other, a test bench is provided on the surface of the fixture base, and a surface of the test bench is provided with a placement The surface of the fixture base is provided with a wiring port, and the surface of the wiring port is provided with a plug, and the plug and the wiring port cooperate with each other. The surface of the fixture base is installed with a switch button, and the surfaces of the fixture base and the lifting plate are provided with a buffer shock-absorbing mechanism, and the interior of the buffer shock-absorbing mechanism includes a buffer column, a fixed cylinder and a buffer shock-absorbing assembly. The interior of the test bench is provided with a positioning and placement mechanism, and the interior of the positioning and placement mechanism includes a fixed groove, a suction cup and a positioning and placement assembly. The interior of the fixture base and the surface of the wiring port are provided with a clamping and anti-slipping mechanism, and the interior of the clamping and anti-slipping mechanism includes a clamping plate, a fixed column, an electric push rod, a holding tank and a cylinder.

[0006] Preferably, the inner walls of the fixing frames are all installed with fixing plates, the surfaces of the fixing plates are installed with guide rods, the surfaces of the guide rods are fixed to the surface of the jig base, the guide rods and the surfaces of the lifting plates are slidably fitted with each other, the surface at the bottom position of the lifting plate is installed with test needles, the surfaces of the jig bases are all installed with elastic devices, the top ends of the elastic devices are fixed to the surface at the bottom position of the test bench.

[0007] Preferably, the buffer and shock-absorbing assembly is arranged on the surface of the fixture base and the lifting plate. The buffer and shock-absorbing assembly is composed of a buffer spring, a buffer groove, a buffer plate and a shock absorber. The surface at the top position of the fixture base is installed with buffer columns, and the buffer columns are respectively located on both sides of the test bench. The surface at the bottom position of the lifting plate is installed with a fixing cylinder.

[0008] Preferably, a buffer groove is provided on the surface of the fixed cylinder, the diameter of the buffer groove is larger than the diameter of the buffer column, a buffer plate is provided inside the buffer groove, the buffer plate and the inner wall of the buffer groove slide together, a buffer spring is installed inside the buffer groove, one end of the buffer spring is fixed to the surface of the buffer plate, a shock absorber is installed inside the buffer groove, one end of the shock absorber is fixed to the surface of the buffer plate.

[0009] Preferably, the positioning and placement component is arranged inside the test bench, and the positioning and placement component is composed of a connecting block, an extension spring, a groove body and a guide slide groove. The interior of the test bench is provided with a groove body, and the interior of the groove body is provided with a connecting block. The inner wall of the test bench is provided with a guide slide groove, and the guide slide groove and the surface of the connecting block slide with each other, and the surface of the test bench is provided with a fixed groove.

[0010] Preferably, a suction cup is provided inside the fixing groove for positioning and preventing the circuit board from falling off, one end of the suction cup extends to the inside of the placement groove, the suction cup and the inner wall of the fixing groove slide together, the surface of the connecting block is fixed to the surface at the center of the suction cup, and an extension spring is installed inside the groove body, one end of the extension spring is fixed to the surface of the connecting block.

[0011] Preferably, a holding groove is provided inside the fixture base, a cylinder is installed inside the holding groove, clamping plates are provided on the surfaces on both sides of the wiring port, the surface of the clamping plate is in contact with the surface of the wiring port, an electric push rod is installed inside the cylinder, and the input end of the electric push rod is electrically connected to the output end of the controller.

[0012] Preferably, a fixing column is installed at the output end of the electric push rod, the fixing column and the inner wall of the cylinder are slidably matched with each other, and the surface of the fixing column is fixed to the surface at the center position of the clamping plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the power supply test fixture for a circuit board not only enables the circuit board to be positioned and placed inside the placement slot when the power supply test fixture is in use, thereby avoiding the phenomenon that the circuit board is displaced during use of the power supply test fixture, which leads to inaccurate testing of the circuit board, but also enables the power supply test fixture to reduce the impact force generated when the lifting plate is pressed down, thereby improving the buffering and shock absorption during use of the power supply test fixture, and enables the power supply test fixture to clamp the wiring port on the surface of the plug when in use, thereby avoiding the phenomenon that the wiring port is loosened from the inside of the plug during use of the power supply test fixture, which leads to the inability to continue testing the circuit board;

[0014] 1. By providing a positioning and placement mechanism, the user places the circuit board to be tested inside the placement slot. At this time, the elastic force of the extension spring inside the slot drives the connecting block to move, so that the connecting block slides inside the guide slot. Under the action of the guide slot, the connecting block is guided. When the connecting block moves, the connecting block drives the suction cup to move inside the fixed slot, so that the suction cup moves to contact the surface of the circuit board. Under the action of the suction cup inside the fixed slot, the circuit board is sucked into the placement slot, avoiding the circuit board from being displaced inside the placement slot. The function of the power supply test fixture to position and place the circuit board is realized, so that the power supply test fixture can position and place the circuit board inside the placement slot when in use, avoiding the circuit board displacement during the use of the power supply test fixture, which leads to inaccurate testing of the circuit board.

[0015] 2. By providing a buffer and shock-absorbing mechanism, when the lifting plate moves downward, the lifting plate drives the fixed cylinder to move downward. At this time, one end of the buffer column moves into the inside of the buffer groove, and the buffer column pushes the buffer plate inside the buffer groove, so that the buffer plate slides inside the buffer groove. At this time, the buffer plate squeezes the buffer spring and shock absorber inside the buffer groove. Under the joint action of the buffer spring and the shock absorber, the buffer plate is driven to move, so that the impact force received by the buffer plate is buffered and shock-absorbed, so that the shock absorption effect when the surface of the circuit board is inspected is better, and the power supply test fixture realizes the function of buffering and shock-absorbing the lifting plate, so that the power supply test fixture can reduce the impact force generated when the lifting plate is pressed down when in use, so that the buffering and shock absorption of the power supply test fixture is better when in use;

[0016] 3. By providing a clamping anti-loosening mechanism, when the wiring port is used for a long time, it is easy to loosen from the surface of the plug. When the user plugs the wiring port into the inside of the plug, the user operates the controller to control the electric push rod inside the cylinder to work, and the electric push rod is driven to move inside the cylinder under the action of the electric push rod. At this time, the fixed column slides inside the receiving groove. When the fixed column moves, the fixed column drives the clamping plate to move until it contacts the surface of the wiring port. Under the joint action of the electric push rod and the clamping plate, the wiring port is stably clamped on the surface of the plug to avoid the wiring port from loosening from the surface of the plug, thereby realizing the power supply test fixture's function of preventing the plug from loosening, so that the power supply test fixture can clamp the wiring port on the surface of the plug when in use, thereby avoiding the phenomenon that the wiring port loosens from the inside of the plug during the use of the power supply test fixture, resulting in the inability to continue testing the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rear cross-sectional structure of the utility model;

[0020] Figure 4 For the utility model Figure 2 An enlarged structural diagram of the middle buffer shock absorbing mechanism;

[0021] Figure 5 For the utility model Figure 2 An enlarged structural diagram of the positioning and placement mechanism;

[0022] Figure 6 For the utility model Figure 3 Schematic diagram of the enlarged structure of the clamping and anti-slip mechanism.

[0023] Figure: 1. Fixture base; 101. Power box; 102. Fixing frame; 103. Rotating handle; 104. Controller; 105. Frame; 106. Fixing plate; 107. Lifting plate; 108. Guide rod; 109. Elastic device; 110. Placement slot; 111. Test table; 112. Wiring port; 113. Plug; 114. Test pin; 115. Switch button; 2. Buffer and shock absorption mechanism; 21. Buffer column; 22. Fixing cylinder ; 23. Buffer and shock-absorbing assembly; 231. Buffer spring; 232. Buffer groove; 233. Buffer plate; 234. Shock absorber; 3. Positioning and placement mechanism; 31. Fixed groove; 32. Suction cup; 33. Positioning and placement assembly; 331. Connecting block; 332. Extension spring; 333. Groove body; 334. Guide slide; 4. Clamping and anti-slip mechanism; 41. Clamping plate; 42. Fixed column; 43. Electric push rod; 44. Container; 45. Cylinder. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] The utility model provides a circuit board power supply test fixture with a structure as follows Figure 1 and Figure 2 As shown, it includes a fixture base 1, a fixing frame 102 is installed on the surface of the top position of the fixture base 1, a power box 101 is installed on the surface of the fixture base 1, a controller 104 is provided on one side of the fixture base 1, and the model of the controller 104 can be selected from the LA series. The controller 104 is connected to the fixture base 1, and a rotating handle 103 is provided on the surface of the fixing frame 102. A frame body 105 is installed on the surface of the fixing frame 102 by screws. The frame body 105 and the surface of the rotating handle 103 rotate with each other. A lifting plate 107 is provided on the surface of the frame body 105. The lifting plate 107 and the inner wall of the frame body 105 rotate with each other. The inner wall of the fixing frame 102 is installed with a fixing plate 106. The surface of the fixing plate 106 A guide rod 108 is installed on the surface, and the surface of the guide rod 108 is fixed to the surface of the jig base 1. The guide rod 108 and the surface of the lifting plate 107 slide with each other, and a test needle 114 is installed on the surface of the bottom position of the lifting plate 107. A test table 111 is provided on the surface of the jig base 1, and a placement groove 110 is provided on the surface of the test table 111. An elastic device 109 is installed on the surface of the jig base 1, and the top of the elastic device 109 is fixed to the surface at the bottom position of the test table 111. A wiring port 112 is provided on the surface of the wiring port 112, and a plug 113 is provided on the surface of the wiring port 112. The plug 113 cooperates with the wiring port 112, and a switch button 115 is installed on the surface of the jig base 1.

[0026] Furthermore, if Figure 2 and Figure 4 As shown, the surfaces of the fixture base 1 and the lifting plate 107 are both provided with a buffer shock-absorbing mechanism 2, the interior of the buffer shock-absorbing mechanism 2 includes a buffer column 21, a fixing cylinder 22 and a buffer shock-absorbing assembly 23, the buffer shock-absorbing assembly 23 is provided on the surface of the fixture base 1 and the lifting plate 107, the buffer shock-absorbing assembly 23 is composed of a buffer spring 231, a buffer groove 232, a buffer plate 233 and a shock absorber 234, and the surface of the top position of the fixture base 1 is installed with a buffer column 21, and the buffer column 21 is respectively located on both sides of the test table 111 and the bottom position of the lifting plate 107. A fixing cylinder 22 is installed on the surface of each location, and a buffer groove 232 is opened on the surface of the fixing cylinder 22. The diameter of the buffer groove 232 is larger than the diameter of the buffer column 21. A buffer plate 233 is provided inside the buffer groove 232. The buffer plate 233 and the inner wall of the buffer groove 232 slide with each other. A buffer spring 231 is installed inside the buffer groove 232, and one end of the buffer spring 231 is fixed to the surface of the buffer plate 233. A shock absorber 234 is installed inside the buffer groove 232, and one end of the shock absorber 234 is fixed to the surface of the buffer plate 233.

[0027] During implementation, when the lifting plate 107 moves downward, the lifting plate 107 drives the fixed cylinder 22 to move downward. At this time, one end of the buffer column 21 moves to the inside of the buffer groove 232, and the buffer column 21 pushes the buffer plate 233 inside the buffer groove 232, so that the buffer plate 233 slides inside the buffer groove 232. At this time, the buffer plate 233 squeezes the buffer spring 231 and the shock absorber 234 inside the buffer groove 232. Under the joint action of the buffer spring 231 and the shock absorber 234, the buffer plate 233 is driven to move, so that the impact force received by the buffer plate 233 is buffered and shock-absorbed, so that the shock-absorbing effect is better when the surface of the circuit board is tested, so as to realize the function of the power supply test fixture to buffer and shock-absorb the lifting plate 107.

[0028] Furthermore, if Figure 2 and Figure 5 As shown, the interior of the test bench 111 is provided with a positioning and placing mechanism 3, the interior of the positioning and placing mechanism 3 includes a fixing groove 31, a suction cup 32 and a positioning and placing component 33, the positioning and placing component 33 is arranged inside the test bench 111, and the positioning and placing component 33 is composed of a connecting block 331, a stretching spring 332, a groove body 333 and a guide slide 334, the interior of the test bench 111 is provided with a groove body 333, the interior of the groove body 333 is provided with a connecting block 331, the inner wall of the test bench 111 is provided with a guide slide 334, and the guide The sliding groove 334 and the surface of the connecting block 331 slide with each other. The surface of the test bench 111 is provided with a fixed groove 31. The interior of the fixed groove 31 is provided with a suction cup 32 for positioning and preventing the circuit board from falling off. One end of the suction cup 32 extends to the interior of the placement groove 110. The suction cup 32 and the inner wall of the fixed groove 31 slide with each other. The surface of the connecting block 331 is fixed to the surface at the center of the suction cup 32. An extension spring 332 is installed inside the groove body 333, and one end of the extension spring 332 is fixed to the surface of the connecting block 331.

[0029] During implementation, the user places the circuit board to be tested inside the placement slot 110. At this time, the connecting block 331 is driven to move by the elastic force of the extension spring 332 inside the slot body 333, so that the connecting block 331 slides inside the guide slot 334. The connecting block 331 is guided by the guide slot 334. When the connecting block 331 moves, the connecting block 331 drives the suction cup 32 to move inside the fixed slot 31, so that the suction cup 32 moves to contact the surface of the circuit board. Under the action of the suction cup 32 inside the fixed slot 31, the circuit board is sucked into the placement slot 110 to avoid displacement of the circuit board inside the placement slot 110, so as to realize the function of the power supply test fixture to position and place the circuit board.

[0030] Furthermore, if Figure 3 and Figure 6As shown, the interior of the fixture base 1 and the surface of the wiring port 112 are both provided with a clamping anti-slip mechanism 4, the interior of the clamping anti-slip mechanism 4 includes a clamping plate 41, a fixed column 42, an electric push rod 43, a receiving groove 44 and a cylinder 45, the interior of the fixture base 1 is provided with a receiving groove 44, the interior of the receiving groove 44 is installed with a cylinder 45, the surfaces on both sides of the wiring port 112 are both provided with a clamping plate 41, the surface of the clamping plate 41 is in contact with the surface of the wiring port 112, the interior of the cylinder 45 is installed with an electric push rod 43, the model of the electric push rod 43 can be selected from the DG series, the input end of the electric push rod 43 is electrically connected to the output end of the controller 104, the output end of the electric push rod 43 is installed with a fixed column 42, the fixed column 42 and the inner wall of the cylinder 45 slide together, and the surface of the fixed column 42 is fixed to the surface at the center position of the clamping plate 41.

[0031] During implementation, when the wiring port 112 is used for a long time, it is easy to loosen from the surface of the plug 113. When the user plugs the wiring port 112 into the inside of the plug 113, the user operates the controller 104, so that the controller 104 controls the electric push rod 43 inside the cylinder 45 to work, and under the action of the electric push rod 43, the electric push rod 43 is driven to move inside the cylinder 45. At this time, the fixed column 42 slides inside the receiving groove 44. When the fixed column 42 moves, the fixed column 42 drives the clamping plate 41 to move until it contacts the surface of the wiring port 112. Under the joint action of the electric push rod 43 and the clamping plate 41, the wiring port 112 is stably clamped on the surface of the plug 113, preventing the wiring port 112 from loosening from the surface of the plug 113, thereby realizing the function of preventing the power supply test fixture from loosening the wiring port 112.

[0032] Working principle: When in use, first place the fixture base 1 at the specified position, and the user places the circuit board to be tested inside the placement groove 110. At this time, the elastic force of the extension spring 332 inside the groove body 333 drives the connecting block 331 to move, so that the connecting block 331 slides inside the guide slot 334, and the connecting block 331 is guided under the action of the guide slot 334. When the connecting block 331 moves, the connecting block 331 drives the suction cup 32 to move inside the fixed groove 31, so that the suction cup 32 moves to contact the surface of the circuit board, and the circuit board is sucked into the placement groove 110 under the action of the suction cup 32 inside the fixed groove 31, avoiding the displacement of the circuit board inside the placement groove 110, so as to realize the function of the power supply test fixture to position and place the circuit board, so that the power supply test fixture can position the circuit board inside the placement groove 110 when in use, avoiding the displacement of the circuit board during the use of the power supply test fixture, which leads to inaccurate testing of the circuit board.

[0033] Then, the user pulls the rotating handle 103 on the surface of the frame 105, so that the rotating handle 103 drives the lifting plate 107 to move downward. At this time, the lifting plate 107 slides on the surface of the guide rod 108, and the lifting plate 107 is guided by the guide rod 108. At this time, the lifting plate 107 drives the test needle 114 to move downward until it contacts the surface of the circuit board placed inside the placement slot 110. At this time, the lifting plate 107 and the test needle 114 press the test table 111 downward, so that the test table 111 squeezes the elastic device 109 downward. At this time, the test table 111 moves downward to the surface of the fixture base 1, and the user operates the switch button 115 on the surface of the fixture base 1 to test the surface of the circuit board, and the test results are displayed on the surface of the controller 104.

[0034] Subsequently, when the lifting plate 107 moves downward, the lifting plate 107 drives the fixed cylinder 22 to move downward. At this time, one end of the buffer column 21 moves to the inside of the buffer groove 232, and the buffer column 21 pushes the buffer plate 233 inside the buffer groove 232, so that the buffer plate 233 slides inside the buffer groove 232. At this time, the buffer plate 233 squeezes the buffer spring 231 and the shock absorber 234 inside the buffer groove 232. Under the joint action of the buffer spring 231 and the shock absorber 234, the buffer plate 233 is driven to move, so that the impact force received by the buffer plate 233 is buffered and shock-absorbing, so that the shock absorption effect is better when the surface of the circuit board is tested, so as to realize the function of the power supply test fixture to buffer and shock-absorb the lifting plate 107, so that the power supply test fixture can reduce the impact force generated when the lifting plate 107 is pressed down when in use, so that the power supply test fixture has better buffering and shock absorption when in use.

[0035] Subsequently, after the connection port 112 has been used for a long time, it is easy to become loose from the surface of the plug 113. After the user plugs the connection port 112 into the inside of the plug 113, the user operates the controller 104 so that the controller 104 controls the electric push rod 43 inside the cylinder 45 to work. Under the action of the electric push rod 43, the electric push rod 43 is driven to move inside the cylinder 45. At this time, the fixed column 42 slides inside the receiving groove 44. When the fixed column 42 moves, the fixed column 42 drives the clamping plate 41 to move until it contacts the surface of the connection port 112. The movable push rod 43 and the clamping plate 41 work together to stably clamp the wiring port 112 on the surface of the plug 113, preventing the wiring port 112 from being loosened from the surface of the plug 113, thereby realizing the function of preventing the power supply test fixture from being loosened with the wiring port 112. As a result, the wiring port 112 can be clamped on the surface of the plug 113 when the power supply test fixture is in use, thereby preventing the wiring port 112 from being loosened from the inside of the plug 113 during use of the power supply test fixture, resulting in the inability to continue testing the circuit board, and finally completing the use of the power supply test fixture.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A circuit board power supply test fixture, comprising a fixture base (1), characterized in that: A fixing frame (102) is installed on the surface of the top position of the fixture base (1), a power supply box (101) is installed on the surface of the fixture base (1), a controller (104) is provided on one side of the fixture base (1), and the controller (104) is connected to the fixture base (1), a rotating handle (103) is provided on the surface of the fixing frame (102), a frame (105) is installed on the surface of the fixing frame (102) by screws, and the frame (105) and the surface of the rotating handle (103) are rotated together, and a lifting plate (107) is provided on the surface of the frame (105), and the lifting plate (107) and the inner wall of the frame (105) are rotated together, and a test bench (111) is provided on the surface of the fixture base (1), and a placement groove (110) is provided on the surface of the test bench (111), and a wiring port (112) is provided on the surface of the fixture base (1), and the wiring port A plug (113) is provided on the surface of (112), and the plug (113) and the wiring port (112) cooperate with each other. A switch button (115) is installed on the surface of the fixture base (1). A buffer shock-absorbing mechanism (2) is provided on the surface of the fixture base (1) and the lifting plate (107). The interior of the buffer shock-absorbing mechanism (2) includes a buffer column (21), a fixing cylinder (22) and a buffer shock-absorbing assembly (23). The interior of the test bench (111) is provided with a positioning and placement mechanism (3). The interior of the positioning and placement mechanism (3) includes a fixing groove (31), a suction cup (32) and a positioning and placement assembly (33). The interior of the fixture base (1) and the surface of the wiring port (112) are both provided with a clamping and anti-slipping mechanism (4). The interior of the clamping and anti-slipping mechanism (4) includes a clamping plate (41), a fixing column (42), an electric push rod (43), a containing groove (44) and a cylinder (45).

2. The circuit board power supply test fixture according to claim 1, characterized in that: The inner wall of the fixing frame (102) is installed with a fixing plate (106), the surface of the fixing plate (106) is installed with a guide rod (108), the surface of the guide rod (108) is fixed to the surface of the fixture base (1), the guide rod (108) and the surface of the lifting plate (107) are slidably matched with each other, the surface at the bottom position of the lifting plate (107) is installed with a test needle (114), the surface of the fixture base (1) is installed with an elastic device (109), the top of the elastic device (109) is fixed to the surface at the bottom position of the test table (111).

3. The circuit board power supply test fixture according to claim 1, characterized in that: The buffer shock-absorbing assembly (23) is arranged on the surface of the fixture base (1) and the lifting plate (107), and the buffer shock-absorbing assembly (23) is composed of a buffer spring (231), a buffer groove (232), a buffer plate (233) and a shock absorber (234). The surface at the top position of the fixture base (1) is installed with a buffer column (21), and the buffer column (21) is respectively located on both sides of the test table (111). The surface at the bottom position of the lifting plate (107) is installed with a fixing cylinder (22).

4. The circuit board power supply test fixture according to claim 3, characterized in that: A buffer groove (232) is provided on the surface of the fixed cylinder (22), the diameter of the buffer groove (232) is larger than the diameter of the buffer column (21), a buffer plate (233) is provided inside the buffer groove (232), the buffer plate (233) and the inner wall of the buffer groove (232) are slidably matched with each other, a buffer spring (231) is installed inside the buffer groove (232), one end of the buffer spring (231) is fixed to the surface of the buffer plate (233), and a shock absorber (234) is installed inside the buffer groove (232), one end of the shock absorber (234) is fixed to the surface of the buffer plate (233).

5. The circuit board power supply test fixture according to claim 1, characterized in that: The positioning and placement component (33) is arranged inside the test bench (111), and the positioning and placement component (33) is composed of a connecting block (331), a stretching spring (332), a slot body (333) and a guide slide groove (334). The interior of the test bench (111) is provided with a slot body (333), the interior of the slot body (333) is provided with a connecting block (331), the inner wall of the test bench (111) is provided with a guide slide groove (334), the guide slide groove (334) and the surface of the connecting block (331) are slidably matched with each other, and the surface of the test bench (111) is provided with a fixing groove (31).

6. The circuit board power supply test fixture according to claim 5, characterized in that: A suction cup (32) for positioning and preventing the circuit board from falling off is provided inside the fixing groove (31), one end of the suction cup (32) extends to the inside of the placement groove (110), the suction cup (32) and the inner wall of the fixing groove (31) are slidably matched with each other, the surface of the connecting block (331) is fixed to the surface at the center position of the suction cup (32), and an extension spring (332) is installed inside the groove body (333), and one end of the extension spring (332) is fixed to the surface of the connecting block (331).

7. The circuit board power supply test fixture according to claim 1, characterized in that: The fixture base (1) is provided with a receiving groove (44) inside, and a cylinder (45) is installed inside the receiving groove (44). The surfaces on both sides of the wiring port (112) are provided with clamping plates (41), and the surface of the clamping plate (41) is in contact with the surface of the wiring port (112). An electric push rod (43) is installed inside the cylinder (45), and the input end of the electric push rod (43) is electrically connected to the output end of the controller (104).

8. The circuit board power supply test fixture according to claim 7, characterized in that: A fixing column (42) is installed at the output end of the electric push rod (43), and the fixing column (42) and the inner wall of the cylinder (45) are slidably matched with each other, and the surface of the fixing column (42) is fixed to the surface at the center position of the clamping plate (41).

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