Test fixture for lifting table circuit board

Abstract

The utility model provides a test fixture for a circuit board of a lifting table, which comprises a bottom table, the bottom table is a hollow box body, and a microcomputer controller is connected in the bottom table. The top surface of the bottom table is connected with a circuit board fixing plate through a spring sliding mechanism, and the top surface of the bottom table is connected with a probe. A pressing device is arranged on the upper side of the circuit board fixing plate and connected to the top face of the bottom table. The top surface of the bottom table is connected with a simulation lifting mechanism; and the simulation lifting mechanism is electrically connected with the microcomputer controller. The device detects the functions of the circuit board of the lifting table, simulates the working state of the lifting table, monitors the working current, the working voltage, the remote control module power supply and the signal power supply, verifies the key functions of the limit switch logic, the operation mode switching and the like, ensures that the lifting table stops in time when reaching the limit position, and evaluates the reliability and the safety of the circuit board.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board detection, and particularly relates to a circuit board test fixture for a lifting table. BACKGROUND

[0002] With the rapid development of intelligent office furniture industry, the function reliability of the circuit board of the lifting table control system as a core executive mechanism directly determines the service life and safety of the product. Although the circuit board detection device in the prior art adopts a resistance load simulation scheme, it can only realize static current detection and cannot reproduce transient current impact in the motor start-stop process, and lacks verification capability for key functions such as limit switch logic and remote control.

[0003] Therefore, the above problems need to be solved. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above defects, and provides a circuit board test fixture for a lifting table, which simulates the working state of the lifting table, detects the function of the circuit board of the lifting table, monitors the working current, working voltage, remote control module power supply and signal power supply, realizes verification of key functions such as limit switch logic and remote control, reproduces transient current in the motor start-stop process, and ensures that the function of the circuit board of the lifting table is normal.

[0005] Technical solution: In order to realize the above-mentioned purpose, the utility model provides a kind of for lifting table circuit board test fixture, including bottom table, bottom table is hollow box, microcomputer controller is connected in bottom table.In the top surface of bottom table, circuit board fixed plate is connected by spring sliding mechanism, the top surface of bottom table is connected with probe, and the lower end of probe is inserted into bottom table and is electrically connected with microcomputer controller.The upper end of probe is inserted into the probe hole provided in circuit board fixed plate, and the probe hole is provided as through hole.Circuit board fixed plate upper side is equipped with pressing device, and pressing device is connected to the top surface of bottom table.The top surface of bottom table is connected with analog lifting mechanism, and analog lifting mechanism is electrically connected with microcomputer controller.The probe hole is provided as elastic probe, and the probe hole includes needle head, needle tail, spring and sleeve, the both ends of spring are respectively sleeved with needle head and needle tail, sleeve and needle tail are connected, sleeve is covered on needle head and spring, and needle head can be telescopic sliding at the opening of sleeve.The utility model is used for lifting table circuit board test, simulates lifting table working state, detects the function of lifting table circuit board, monitors working current, working voltage, remote control module power supply and signal power supply.Combined with the above technical features, detection steps include: placing the lifting table circuit board to be tested on the upper side of circuit board fixed plate, circuit board fixed plate provides limit for the lifting table circuit board to be tested, pressing device presses circuit board fixed plate, circuit board fixed plate moves downward, probe is stretched out from probe hole, and probe hole contacts the contact point of lifting table circuit board to be tested.Press up key, and lifting table circuit board controls analog lifting mechanism to simulate rising to the highest position, long press setting key and up key until prompt sound is heard, and save the highest position.Press down key, and lifting table circuit board controls analog lifting mechanism to simulate descending to the lowest position, long press setting key and down key until prompt sound is heard, and save the lowest position.Long press (automatic operation) or short press (point dynamic adjustment) up key to simulate the rising of analog lifting mechanism, long press (automatic operation) or short press (point dynamic adjustment) down key to simulate the descending of analog lifting mechanism, simulate lifting table working state.If analog lifting mechanism works normally, then the lifting table circuit board is qualified, otherwise not qualified.The utility model detects the function of lifting table circuit board, monitors working current, working voltage, remote control module power supply and signal power supply and other parameters, realizes the verification of limit switch logic, remote control and other key functions, reproduces transient current in motor start-stop process, ensures that lifting table circuit board function is normal, ensures that lifting table stops in time when reaching limit position, ensures that circuit board runs within rated parameter, evaluates circuit board reliability and safety.

[0006] Further, the spring sliding mechanism in the circuit board testing fixture for the lifting table includes first guide columns connected to both sides of the circuit board fixing plate, the first guide columns are connected to the top surface of the base, the upper ends of the first guide columns are provided with head portions, the first guide columns are slidingly connected to the through holes provided in the circuit board fixing plate, springs are sleeved outside the first guide columns, the lower ends of the springs abut against the top surface of the base, the upper ends of the springs abut against the circuit board fixing plate, and the springs apply a pushing force to the circuit board fixing plate. Before detection, the spring pushes the circuit board fixing plate away from the base, and the probes are retracted into the probe holes. During detection, the pressing device presses the circuit board fixing plate, the circuit board fixing plate moves towards the base, the probes are extended out of the probe holes, the probes contact the contacts of the lifting table circuit board to be detected, the probes are provided as elastic probes, the stability of the probes contacting the circuit board during detection is ensured, the stability of power supply and signal transmission is ensured, and the stability of detection is ensured.

[0007] Further, the pressing device in the circuit board testing fixture for the lifting table includes a bracket connected to the base, a push-pull type quick clamp connected to the bracket, a pressing plate connected to the push-pull type quick clamp, and a thimble connected to the pressing plate. The thimble is connected to four corners of the pressing plate. During detection, the push-pull type quick clamp drives the pressing plate to move towards the circuit board fixing plate, and the thimble presses the circuit board fixing plate. The push-pull type quick clamp belongs to a kind of quick clamps, which includes a base, a handle, a connecting rod, and a clamping rod. The handle is hinged to the base, the clamping rod is movably connected to the base, and the connecting rod is transmissionally connected between the handle and the clamping rod. The clamping rod is threadedly connected to the circuit board fixing plate. During detection, the handle is bent downward, the handle drives the clamping rod to move downward through the connecting rod, when the hinged points of the connecting rod and the clamping rod, the hinged points of the connecting rod and the handle, and the intersection points of the handle and the base are in a straight line, the push-pull type quick clamp is in a dead point state, the circuit board fixing plate is quickly locked, and the detection efficiency is improved.

[0008] Further, the second guide column is connected to the top surface of the base in the circuit board testing fixture for the lifting table, and the second guide column is slidingly connected to the pressing plate. The pressing plate is slidingly raised and lowered along the second guide column, the stability of the pressing plate during movement is ensured, the pressing force of the pressing plate pressing the circuit board fixing plate is stable, the circuit board fixing plate is uniformly stressed to descend, and the probes stably contact the contacts of the lifting table circuit board to be detected.

[0009] Further, the above-mentioned circuit board test fixture for lifting table, the simulation lifting mechanism includes drive seat, the drive seat is drivenly connected with screw rod, the screw rod is vertically arranged, the drive seat is drivenly connected with drive motor, and the drive motor drives the screw rod to rotate through the drive seat. The bottom table top is connected with sliding rails, and the sliding rails are arranged in parallel to the screw rod. The screw rod is threadedly connected with a drive shaft sleeve, and the drive shaft sleeve is slidably connected through a sliding block and the sliding rails. When the lifting table circuit board up button is pressed, the drive motor drives the screw rod to rotate through the drive seat, and the screw rod drives the drive shaft sleeve to ascend along the sliding rails. When the lifting table circuit board down button is pressed, the screw rod drives the drive shaft sleeve to descend along the sliding rails, simulates the working state of the lifting table, and ensures the accuracy of the test.

[0010] Further, the above-mentioned circuit board test fixture for lifting table, the circuit board fixing plate top is provided with a fixing groove, and the fixing groove and the lifting table circuit board to be tested are correspondingly arranged. The bottom surface of the fixing groove is connected with a positioning pin, and the positioning pin is provided with two or more than two. The positioning pin and the positioning hole of the lifting table circuit board to be tested are correspondingly arranged. The lifting table circuit board to be tested is placed in the fixing groove, the positioning pin is inserted into the positioning hole of the lifting table circuit board to be tested, the consistency of the detection position of the lifting table circuit board to be tested is ensured, and the stable contact between the probe and the contact point of the lifting table circuit board to be tested is ensured.

[0011] Further, the above-mentioned circuit board test fixture for lifting table, the fixing groove is provided with a discharging groove on both sides, and the bottom surface of the discharging groove is arranged lower than the bottom surface of the fixing groove. The discharging groove facilitates the detection personnel to take down the lifting table circuit board, and improves the operation convenience.

[0012] Further, the above-mentioned circuit board test fixture for lifting table, the circuit board fixing plate is connected with a third guide column at four corners, the upper end of the third guide column is connected with the circuit board fixing plate, and the lower end of the third guide column penetrates into the inside of the bottom table. The circuit board fixing plate slides along the third guide column, improves the stability of the movement of the circuit board fixing plate, and ensures the stable contact between the probe and the contact point of the lifting table circuit board to be tested.

[0013] Furthermore, in the aforementioned test fixture for the circuit board of the height-adjustable table, a test button is provided on the top surface of the base, and a display device is connected to the side wall of the base. The test button and the display device are electrically connected to the microcomputer controller. The test button includes an up button, a down button, a height-adjustable motor power control button, a drive motor control signal power button, and a pairing key. The display device includes a current monitoring device, a voltage monitoring device, a remote control module power monitoring device, and a signal power monitoring device. The current monitoring device monitors the operating current, the voltage monitoring device monitors the operating voltage, the remote control module power monitoring device monitors the remote control module power, and the signal power monitoring device monitors the signal power. The up button controls the drive motor to drive the drive shaft sleeve to rise, and the down button controls the drive motor to drive the drive shaft sleeve to fall. The drive motor power control button controls the on / off state of the drive motor power. The drive motor control signal power button controls the on / off state of the drive motor control signal, and the pairing key is used for wireless pairing with the remote control. During testing, pressing the height-adjustable motor power control button connects the drive motor power, and pressing the drive motor control signal power button connects the drive motor control signal power. Pressing the up button causes the drive motor to drive the drive shaft sleeve to rise. Press the descent button to drive the drive motor to lower the drive shaft sleeve.

[0014] Furthermore, in the aforementioned test fixture for circuit boards on a height-adjustable table, the support includes support plates vertically connected to the top surface of the base platform, and two or more support plates are provided. Limiting protrusions are provided on one side of each support plate, and these protrusions are horizontally positioned. A horizontal plate is connected to the top surface of each limiting protrusion, and both ends of the horizontal plate are connected to the side walls of the support plates. A push-pull quick-release clamp is connected to the side wall of the horizontal plate. The horizontal plate is connected to the upper side of the limiting protrusions to ensure connection strength and improve connection stability.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects: This utility model is used as a test fixture for the circuit board of a height-adjustable table, simulating the working state of the height-adjustable table, detecting the function of the circuit board, monitoring the working current, working voltage, remote control module power supply, and signal power supply, realizing the verification of key functions such as limit switch logic and remote control, reproducing the transient current during the motor start-up and stop process, ensuring the normal function of the circuit board of the height-adjustable table, ensuring that the height-adjustable table stops in time when it reaches the limit position, ensuring that the circuit board operates within the rated parameters, and evaluating the reliability and safety of the circuit board. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the circuit board testing fixture for the height-adjustable table according to this utility model;

[0017] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0018] Figure 3 for Figure 1 A magnified view of a portion of the image;

[0019] Figure 4 Structure diagram of the simulation lifting mechanism;

[0020] Figure 5 Structure diagram of the circuit board fixing plate;

[0021] Figure 6 Structure diagram of the bracket.

[0022] In the figure: 1, base, 11, test button, 12, display device, 2, spring sliding mechanism, 21, first guide column, 22, spring, 3, circuit board fixing plate, 31, probe hole, 32, fixing groove, 33, positioning pin, 34, unloading groove, 35, third guide column, 4, probe, 5, pressing device, 51, bracket, 52, push-pull type quick clamp, 53, pressing plate, 54, thimble, 55, second guide column, 56, support plate, 561, limiting convex part, 57, cross plate, 6, simulation lifting mechanism, 61, driving seat, 62, screw rod, 63, driving motor, 64, sliding rail, 65, driving shaft sleeve. DETAILED DESCRIPTION

[0023] Example 1

[0024] As Figure 1 A circuit board test fixture for lifting table, including base 1, base 1 is set as hollow box body, base 1 is connected with microcomputer controller in it. The top surface of base 1 is connected with circuit board fixing plate 3 through spring sliding mechanism 2, the top surface of base 1 is connected with probe 4, the lower end of probe 4 extends into base 1 and is electrically connected with microcomputer controller. The upper end of probe 4 extends into the probe hole 31 provided in the circuit board fixing plate 3, and the probe hole 31 is provided as a through hole. The upper side of circuit board fixing plate 3 is provided with pressing device 5, and the pressing device 5 is connected to the top surface of base 1. The top surface of base 1 is connected with simulation lifting mechanism 6, and the simulation lifting mechanism 6 is electrically connected with microcomputer controller. The probe hole 31 is provided as a flexible probe, and the probe hole 31 includes a needle head, a needle tail, a spring and a sleeve, the spring is sleeved at both ends of the needle head and the needle tail respectively, the sleeve is connected with the needle tail, the sleeve covers the needle head and the spring, and the needle head can slide in and out of the sleeve opening.

[0025] The top surface of base 1 is provided with test button 11, and the side wall of base 1 is connected with display device 12, and test button 11 and display device 12 are respectively electrically connected with microcomputer controller. Test button 11 includes up button, down button, lifting motor power control button, driving motor control signal power button and code matching key, and display device 12 includes current monitoring device, voltage monitoring device, remote control module power monitoring device and signal power monitoring device.

[0026] As Figure 2The spring sliding mechanism 2 includes first guide posts 21 connected to both sides of the circuit board fixing plate 3, the first guide posts 21 are connected to the top surface of the base 1, the upper end of the first guide posts 21 is provided with a head, the first guide posts 21 are slidingly connected to the through holes provided in the circuit board fixing plate 3, the outer side of the first guide posts 21 is sleeved with springs 22, the lower end of the springs 22 abuts against the top surface of the base 1, the upper end of the springs 22 abuts against the circuit board fixing plate 3, and the springs 22 apply a pushing force to the circuit board fixing plate 3. The circuit board fixing plate 3 is connected with third guide posts 35 at four corners, the upper end of the third guide posts 35 is connected with the circuit board fixing plate 3, and the lower end of the third guide posts 35 penetrates into the inside of the base 1. Before detection, the springs 22 push the circuit board fixing plate 3 away from the base 1, and the probes 4 are retracted into the probe holes 31. During detection, the pressing device 5 presses the circuit board fixing plate 3, the circuit board fixing plate 3 moves towards the base 1, the probes 4 are extended out of the probe holes 31, and the probes 4 contact the contact points of the lift table circuit board to be detected.

[0027] As Figure 3 The pressing device 5 includes a bracket 51 connected to the base 1, a push-pull type quick clamp 52 connected to the bracket 51, a pressing plate 53 connected to the push-pull type quick clamp 52, and a thimble 54 connected to the pressing plate 53. The thimble 54 is connected to four corners of the pressing plate 53. During detection, the push-pull type quick clamp 52 drives the pressing plate 53 to move towards the circuit board fixing plate 3, and the thimble 54 presses the circuit board fixing plate 3. The top surface of the base 1 is connected with a second guide post 55, and the second guide post 55 is slidingly connected with the pressing plate 53. The push-pull type quick clamp 52 belongs to a kind of quick clamps, which includes a base, a handle, a connecting rod and a clamping rod. The handle is hinged to the base, the clamping rod is movably connected to the base, and the connecting rod is drivingly connected between the handle and the clamping rod. The clamping rod is threadedly connected to the circuit board fixing plate 3. During detection, the handle is bent downward, the handle drives the clamping rod to move downward through the connecting rod, and when the hinge points of the connecting rod and the clamping rod, the hinge points of the connecting rod and the handle, and the intersection points of the handle and the base are in a straight line, the push-pull type quick clamp 52 is in a dead point state, thereby quickly locking the circuit board fixing plate 3 and improving the detection efficiency.

[0028] As Figure 4The simulation lifting mechanism 6 comprises a driving seat 61, the driving seat 61 is drivenly connected with a screw rod 62, the screw rod 62 is vertically arranged, the driving seat 61 is drivenly connected with a driving motor 63, and the driving motor 63 drives the screw rod 62 to rotate through the driving seat 61. The bottom base 1 is connected with a sliding rail 64 on the top surface, and the sliding rail 64 is arranged in parallel with the screw rod 62. The screw rod 62 is threadedly connected with a driving shaft sleeve 65, and the driving shaft sleeve 65 is slidably connected with the sliding rail 64 through a sliding block. When the lifting table circuit board up button is pressed, the driving motor 63 drives the screw rod 62 to rotate through the driving seat 61, and the screw rod 62 drives the driving shaft sleeve 65 to ascend along the sliding rail 64 in rotation. When the lifting table circuit board down button is pressed, the screw rod 62 drives the driving shaft sleeve 65 to descend along the sliding rail 64 in rotation, and the simulation lifting table working state is simulated.

[0029] As Figure 5 The lifting table circuit board test fixture is shown, the top surface of the circuit board fixing plate 3 is provided with a fixing groove 32, the fixing groove 32 and the to-be-tested lifting table circuit board are correspondingly arranged. The bottom surface of the fixing groove 32 is connected with a positioning pin 33, the positioning pin 33 is provided with two or more than two, and the positioning pin 33 and the positioning hole of the to-be-tested lifting table circuit board are correspondingly arranged. The two sides of the fixing groove 32 are respectively provided with a discharging groove 34, and the bottom surface of the discharging groove 34 is arranged to be lower than the bottom surface of the fixing groove 32.

[0030] As Figure 6 The lifting table circuit board test fixture is shown, the support 51 comprises a support plate 56, the support plate 56 is vertically connected to the top surface of the bottom base 1, and the support plate 56 is provided with two or more than two. The one side of the support plate 56 is respectively provided with a limiting convex part 561, the limiting convex part 561 is horizontally arranged, the top surface of the limiting convex part 561 is connected with a horizontal plate 57, and the two ends of the horizontal plate 57 are respectively connected with the side walls of the support plate 56. The push-pull type quick clamp 52 is connected to the side wall of the horizontal plate 57.

[0031] The detection steps comprise the following steps: the to-be-tested lifting table circuit board is placed into the fixing groove 32, the positioning pin 33 is inserted into the positioning hole of the to-be-tested lifting table circuit board, and the circuit board fixing plate 3 provides the to-be-tested lifting table circuit board with limiting. The handle of the push-pull type quick clamp 52 is pulled, the pressing plate 53 pushes the circuit board fixing plate 3, the top pin 54 connected with the pressing plate 53 pushes the circuit board fixing plate 3 to move downwards, the probe 4 extends out of the probe hole 31, the probe hole 31 contacts the contact point of the to-be-tested lifting table circuit board, and the circuit board fixing plate 3 is locked by the push-pull type quick clamp 52. The lifting motor power control button is pressed, the driving motor 63 power is turned on, the driving motor control signal power button is pressed, and the driving motor 63 control signal power is turned on. The up button is pressed, the driving motor 63 drives the driving shaft sleeve 65 to ascend to the highest position, the setting key and the up key are long-pressed, and the highest position is saved until a prompt sound is heard. The down button is pressed, the driving motor 63 drives the driving shaft sleeve 65 to descend to the lowest position, the setting key and the down key are long-pressed, and the lowest position is saved until a prompt sound is heard.

[0032] Then long press (automatic operation) or short press (point dynamic adjustment) the up button, drive shaft sleeve 65 rises, long press (automatic operation) or short press (point dynamic adjustment) the down button drive shaft sleeve 65 down. Press the code key and remote control for wireless code, control drive shaft sleeve 65 rises or falls through remote control, detect remote control function. In the detection process, the current monitoring device monitors the working current, the voltage monitoring device monitors the working voltage, the remote control module power monitoring device monitors the remote control module power, and the signal power monitoring device monitors the signal power. If the analog lifting mechanism 6 works normally, the parameters meet the design value, the lifting table circuit board is qualified, otherwise it is unqualified.

[0033] The above examples are exemplary, and the purpose is to illustrate the technical concept and characteristics of the present application, so that those skilled in the art can understand the content of the present application and implement it accordingly, and the protection scope of the present application cannot be limited thereby. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A test fixture for circuit boards of a height-adjustable desk, characterized in that: The utility model provides a kind of probe test device, including bottom platform (1), the bottom platform (1) is provided hollow box, microcomputer controller is connected in the bottom platform (1);The top surface of bottom platform (1) is connected with circuit board fixed plate (3) by spring sliding mechanism (2), the top surface of bottom platform (1) is connected with probe (4), the lower end of probe (4) extends into bottom platform (1) and microcomputer controller electrically connected;The upper end of probe (4) extends into the probe hole (31) that circuit board fixed plate (3) is equipped with, the probe hole (31) is provided through hole;The upper side of circuit board fixed plate (3) is equipped with pressing device (5), and pressing device (5) is connected to the top surface of bottom platform (1);The top surface of bottom platform (1) is connected with analog lifting mechanism (6), and analog lifting mechanism (6) and microcomputer controller are electrically connected.

2. The test fixture for circuit boards of a lift table according to claim 1, wherein: The spring sliding mechanism (2) includes the first guide pillar (21) connected to the both sides of the circuit board fixed plate (3), the first guide pillar (21) is connected to the top surface of the bottom platform (1), the upper end of the first guide pillar (21) is provided with a head, the first guide pillar (21) is slidingly connected to the through hole provided in the circuit board fixed plate (3), the spring (22) is sleeved outside the first guide pillar (21), the lower end of the spring (22) abuts against the top surface of the bottom platform (1), the upper end of the spring (22) abuts against the circuit board fixed plate (3), and the spring (22) applies a pushing force to the circuit board fixed plate (3).

3. The test fixture for circuit boards of a lift table according to claim 1, wherein: The pressing device (5) includes a bracket (51) connected to the bottom platform (1), a push-pull type quick clamp (52) connected to the bracket (51), a pressing plate (53) connected to the push-pull type quick clamp (52), and a thimble (54) connected to the pressing plate (53). The thimble (54) is connected to the four corners of the pressing plate (53). During detection, the push-pull type quick clamp (52) drives the pressing plate (53) to move towards the circuit board fixed plate (3), and the thimble (54) presses the circuit board fixed plate (3).

4. The test fixture for circuit boards of a lift table according to claim 3, wherein: The top surface of the bottom platform (1) is connected with a second guide pillar (55), and the second guide pillar (55) is slidingly connected with the pressing plate (53).

5. The test fixture for circuit boards of lift tables according to claim 1, characterized in that: The analog lifting mechanism (6) includes a drive seat (61), a screw rod (62) drivingly connected to the drive seat (61), the screw rod (62) being vertically arranged, a drive motor (63) drivingly connected to the drive seat (61), and the drive motor (63) driving the screw rod (62) to rotate through the drive seat (61). The top surface of the bottom platform (1) is connected with a sliding rail (64), and the sliding rail (64) is parallel to the screw rod (62). The screw rod (62) is threadedly connected with a drive shaft sleeve (65), and the drive shaft sleeve (65) is slidingly connected with the sliding rail (64) through a sliding block.

6. The test fixture for circuit boards of a lift table according to claim 1, wherein: The top surface of the circuit board fixed plate (3) is provided with a fixed groove (32), and the fixed groove (32) and the circuit board of the test lifting table are correspondingly arranged. The bottom surface of the fixed groove (32) is connected with a positioning pin (33), and the positioning pin (33) is provided with two or more than two. The positioning pin (33) and the positioning hole of the circuit board of the test lifting table are correspondingly arranged.

7. The test fixture for circuit boards of a lift table according to claim 6, wherein: The fixed groove (32) is provided with a discharging groove (34) on both sides, and the bottom surface of the discharging groove (34) is lower than that of the fixed groove (32).

8. The test fixture for circuit boards of a lift table according to claim 1, wherein: The circuit board fixing plate (3) is connected with a third guide column (35) at four corners, the upper end of the third guide column (35) is connected with the circuit board fixing plate (3), and the lower end of the third guide column (35) penetrates into the inside of the bottom table (1).

9. The test fixture for circuit boards of lift tables according to claim 1, characterized in that: The top surface of the bottom table (1) is provided with a test button (11), the side wall of the bottom table (1) is connected with a display device (12), and the test button (11) and the display device (12) are respectively electrically connected with a microcomputer controller.

10. The test fixture for circuit boards of a lift table according to claim 3, wherein: The support (51) comprises a support plate (56), the support plate (56) is vertically connected to the top surface of the bottom table (1), and the support plate (56) is provided with two or more than two; one side of the support plate (56) is respectively provided with a limiting convex part (561), the limiting convex part (561) is horizontally arranged, the top surface of the limiting convex part (561) is connected with a horizontal plate (57), and the two ends of the horizontal plate (57) are respectively connected with the side wall of the support plate (56); the push-pull type quick clamp (52) is connected to the side wall of the horizontal plate (57).

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