A display screen mainboard circuit test auxiliary tooling and method

Abstract

The present invention relates to an auxiliary tool, and in particular to an auxiliary tool for testing the circuit of a display screen motherboard and a method thereof. It is necessary to design an auxiliary tool for testing the circuit of a display screen motherboard and a method thereof, which can directly lift the motherboard vertically to prevent it from getting stuck and ensure that the motherboard can be quickly detached. An auxiliary tool for testing the circuit of a display screen motherboard and a method thereof, including a working platform, a test base and a positioning plate, etc. The test base is fixedly connected to the middle of the top of the working platform, and positioning plates for positioning the motherboard are fixedly connected symmetrically on the left and right sides of the top outside the working platform. The present invention places the motherboard on the test base, starts the pressing mechanism to drive the lifting mechanism to move downward to press the motherboard onto the test base to complete the plug-in, and the lifting mechanism clamps the motherboard. After the mainboard circuit test is completed, the lifting mechanism moves upward to drive the mainboard to move vertically upward and quickly detach from the test base, avoiding the mainboard and the test base from getting stuck and requiring people to remove it, thereby improving work efficiency.

Description

Technical Field

[0001] The present invention relates to an auxiliary tool, in particular to an auxiliary tool for testing a display screen mainboard circuit and a method thereof. Background Art

[0002] During the production of display screens, a motherboard is generally required. In order to ensure the quality of subsequent use of the motherboard, the circuit of the motherboard needs to be tested.

[0003] Chinese patent publication number CN211206712U discloses a performance test tool for display screen driver motherboard chips, which includes a test base and a test carrier plate arranged on the upper end surface of the test base. The test carrier plate is provided with a probe that contacts and plugs into the motherboard chip under test. One side of the test carrier plate is provided with a pressing mechanism, which includes a pressing plate for pressing the motherboard under test onto the test carrier plate. The test base is fixed with a positioning shaft corresponding to the motherboard under test and plugged into the four corners of the motherboard under test. The sliding sleeve outside the positioning shaft is provided with an abutment sleeve for plugging into the motherboard under test. A compression spring is provided between the lower end of the abutment sleeve and the test base. When the compression spring is in a natural state, the lower end surface of the abutment sleeve is located above the probe. When the compression spring is fully contracted, the upper end surface of the abutment sleeve is located below the probe. Although the above patent can test the motherboard, and the motherboard after testing is ejected and separated from the probe by the elasticity of the compression spring, when the motherboard and the probe are firmly plugged in, the performance of the compression spring makes it difficult to lift the motherboard, causing it to get stuck, resulting in the need for manual lifting, which is more troublesome.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, a display screen motherboard circuit testing auxiliary tooling and method are proposed, which can directly lift the motherboard vertically to prevent it from getting stuck and ensure that the motherboard can be quickly detached. Summary of the Invention

[0005] In order to overcome the disadvantage that the motherboard after the test is disengaged from the probe by the elastic pop-up of the compression spring, but when the motherboard and the probe are firmly plugged in, the performance of the compression spring is unable to lift the motherboard, causing it to get stuck, resulting in the need for people to lift it later, which is quite troublesome, the present invention provides a display motherboard circuit test auxiliary tooling and method that can directly lift the motherboard vertically to prevent it from getting stuck and ensure that the motherboard can be quickly detached.

[0006] The present invention is achieved through the following technical approaches:

[0007] A display screen motherboard circuit test auxiliary tooling includes a work platform, a test base and a positioning plate. The test base is fixedly connected to the middle of the top of the work platform. Positioning plates for positioning the motherboard are fixedly connected symmetrically on the left and right sides of the top outside the work platform. The four positioning plates are located at the four corners of the test base. It also includes a pressing mechanism and a lifting mechanism. The top outside the work platform is provided with a pressing mechanism for pressing the motherboard onto the test base, and the pressing mechanism is provided with a lifting mechanism for lifting the motherboard and separating it from the test base.

[0008] Further explanation, the pressing mechanism includes a stand, a screw, a motor, a connecting plate, a sliding plate, a sliding rod, a pressure plate and a pressure spring. The stand is fixedly connected to the top rear side of the working platform. A screw is rotatably connected between the middle of the top of the stand and the rear side of the working platform. A connecting plate is rotatably connected to the screw. A sliding plate is slidably connected between the left and right sides of the stand. The top of the sliding plate is fixedly connected to the front side of the connecting plate. A sliding rod is symmetrically connected to the front side of the sliding plate for sliding. A pressure plate for pressing the mainboard onto the test base is fixed between the bottom ends of the left and right sliding rods. A pressure spring is symmetrically connected between the top of the pressure plate and the bottom of the sliding plate. The motor is fixedly connected to the middle of the top rear side of the working platform, and the output shaft end of the motor is fixedly connected to the bottom end of the screw.

[0009] Further description includes a rubber block, and a rubber block is arranged at the bottom of the pressing plate.

[0010] Further explanation, the lifting mechanism includes a limiting block, a lifting plate and an inclined block. The limiting blocks are symmetrically fixed to the left and right sides of the pressure plate. The lower parts of the four limiting blocks are slidably connected with a lifting plate for disconnecting the main board from the test base. The left and right sides of the sliding plate are fixed with inclined blocks for driving the lifting plate to move inward. The four inclined blocks correspond to the four lifting plates.

[0011] Further explanation, it also includes an unlocking mechanism for driving the lifting plate to move outward, and the unlocking mechanism includes a mounting plate, a guide inclined plate, a connecting column and a rotating cylinder. A connecting column is fixed between the inner side surfaces of the two lifting plates on the left, and a connecting column is also fixed between the inner side surfaces of the two lifting plates on the right. The middle parts of the left and right connecting columns are rotatably fitted with a rotating cylinder, and the upper part of the front side of the stand is symmetrically fixed with mounting plates, and the front sides of the bottom of the left and right mounting plates are fixed with guide inclined plates for driving the rotating cylinder to move outward.

[0012] Further explanation, it also includes a material receiving mechanism for collecting the main board, the material receiving mechanism includes a vertical plate, a rotating material receiving plate, a coil spring and a bow plate, the vertical plates are symmetrically fixed to the left and right sides of the front side of the top outside the working platform, and the upper parts of the left and right vertical plates are rotatably connected with a rotating material receiving plate for guiding the main board, the rotating material receiving plate is located below the pressure plate, and the left and right sides of the rotating material receiving plate are respectively connected to the inner side surfaces of the left and right vertical plates with coil springs, the front side surface of the sliding plate is symmetrically fixed with a bow plate for driving the rotating material receiving plate to swing downward, and the bow plate is in contact with the rotating material receiving plate.

[0013] Further description, it also includes a material storage plate, which is fixed between the upper parts of the front side surfaces of the left and right vertical plates and is used to collect the main board.

[0014] Further explanation, it also includes a guiding mechanism for guiding the mainboard, the guiding mechanism includes a fixed rod and a guide cylinder, seven fixed rods are evenly spaced and fixed on the rotating material receiving plate, and the middle parts of the seven fixed rods are rotatably equipped with a guide cylinder for guiding the mainboard.

[0015] A display screen mainboard circuit testing method comprises the following steps:

[0016] S1. Place the motherboard to be tested on the test base and position it on the positioning plate;

[0017] S2, press the material, start the motor to drive the screw to reverse, which makes the pressing plate move downward to press the mainboard onto the test base to complete the plugging, and then start testing the mainboard circuit;

[0018] S3. Lift the material. After the mainboard circuit test is completed, start the motor to drive the screw to rotate forward. The lifting plate moves upward to drive the mainboard to move vertically upward and quickly separate from the test base.

[0019] The present invention is significantly improved in that:

[0020] 1. Place the motherboard on the test base, start the pressing mechanism to drive the lifting mechanism to move downward to press the motherboard onto the test base to complete the plug-in. The lifting mechanism will lock the motherboard. After the motherboard circuit test is completed, the lifting mechanism will move upward to drive the motherboard to move vertically upward and quickly separate from the test base, avoiding the motherboard and the test base from getting stuck and requiring someone to remove it, thereby improving work efficiency.

[0021] 2. Under the action of the unlocking mechanism, whenever the lifting plate moves upward to reset, the unlocking mechanism can drive the lifting plate to move outward to release the main board. There is no need to pull the lifting plate outward to stop and jam the main board. It is convenient and fast, and improves work efficiency.

[0022] 3. Under the action of the material receiving mechanism, whenever the mainboard is released by the lifting plate, the material receiving mechanism guides and collects the fallen mainboard. There is no need for people to catch the fallen mainboard, which is more convenient for collecting the mainboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0025] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the material pressing mechanism of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the material lifting mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the unlocking mechanism of the present invention.

[0029] Figure 7 It is an enlarged schematic diagram of part A of the present invention.

[0030] Figure 8 It is a partial three-dimensional structural diagram of the unlocking mechanism of the present invention.

[0031] Figure 9 It is a schematic diagram of the three-dimensional structure of the material receiving mechanism of the present invention.

[0032] Figure 10 It is a schematic diagram of the three-dimensional structure of the guide mechanism of the present invention.

[0033] The names and serial numbers of the parts in the figure are: 1_working platform, 2_test base, 3_positioning plate, 4_pressing mechanism, 41_vertical frame, 42_screw, 43_motor, 44_connecting plate, 45_sliding plate, 46_sliding rod, 47_pressing plate, 48_pressure spring, 49_rubber block, 5_lifting mechanism, 51_limiting block, 52_lifting plate, 53_inclined block, 6_unlocking mechanism, 61_mounting plate, 62_guide inclined plate, 63_connecting column, 64_rotating cylinder, 7_material receiving mechanism, 71_vertical plate, 72_rotating material receiving plate, 73_coil spring, 74_bow plate, 75_material storage plate, 8_guide mechanism, 81_fixing rod, 82_guide cylinder. DETAILED DESCRIPTION

[0034] First of all, it should be noted that in the various described embodiments, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the entire description can be transferred to the same components having the same reference numerals or identical component names. Positional designations selected in the description, such as top, bottom, lateral, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the event of a change in position.

[0035] Example 1

[0036] A display screen mainboard circuit test auxiliary tooling and method thereof, comprising a working platform 1, a test base 2, a positioning plate 3, a material pressing mechanism 4 and a material lifting mechanism 5, see Figure 1-Figure 5 As shown, a test base 2 is fixed to the middle of the top of the working platform 1, and positioning plates 3 are fixed symmetrically on the left and right sides of the top of the working platform 1. Four positioning plates 3 are located at the four corners of the test base 2. The positioning plates 3 can position the main board. A pressing mechanism 4 is provided on the top of the working platform 1. When the pressing mechanism 4 is in operation, the pressing mechanism 4 can press the main board onto the test base 2. A lifting mechanism 5 is provided on the pressing mechanism 4. When the lifting mechanism 5 is in operation, the lifting mechanism 5 can lift the main board and separate it from the test base 2.

[0037] The pressing mechanism 4 includes a stand 41, a screw 42, a motor 43, a connecting plate 44, a sliding plate 45, a sliding rod 46, a pressing plate 47 and a pressure spring 48. Figure 1-Figure 4 As shown, a stand 41 is installed on the outer top rear side of the working platform 1 by welding, and a screw 42 is rotatably connected between the middle of the top of the stand 41 and the rear side of the working platform 1, and a connecting plate 44 is threadedly rotatably connected on the screw 42, and a sliding plate 45 is slidably connected between the left and right sides of the stand 41, and the top of the sliding plate 45 is fixedly connected to the front side of the connecting plate 44, and a sliding rod 46 is symmetrically slidably connected to the front side of the sliding plate 45, and a pressure plate 47 is fixed between the bottom ends of the sliding rods 46 on both sides. When the pressure plate 47 moves downward and contacts the main board, the pressure plate 47 can press the main board onto the test base 2, and a pressure spring 48 is symmetrically connected between the top of the pressure plate 47 and the bottom of the sliding plate 45. A motor 43 is fixedly connected to the middle of the top rear side of the working platform 1, and the output shaft end of the motor 43 is fixedly connected to the bottom end of the screw 42.

[0038] Also included is a rubber block 49, see Figure 4 As shown, a rubber block 49 is provided at the bottom of the pressure plate 47 .

[0039] The lifting mechanism 5 includes a limit block 51, a lifting plate 52 and an inclined block 53, see Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, the left and right sides of the pressure plate 47 are symmetrically fixed with limit blocks 51, and the lower parts of the four limit blocks 51 are slidably connected with lifting plates 52. When the lifting plates 52 move upward, the lifting plates 52 can disconnect the main board from the test base 2. The left and right sides of the sliding plate 45 are installed with inclined blocks 53 by welding. The four inclined blocks 53 correspond to the four lifting plates 52. When the inclined blocks 53 contact the lifting plates 52, the inclined blocks 53 can drive the lifting plates 52 to move inward.

[0040] The motherboard to be tested is placed between the four positioning plates 3, the motherboard contacts the test base 2, and then the pressing mechanism 4 is started. The pressing mechanism 4 moves downward and drives the lifting mechanism 5 to move downward. When the pressing mechanism 4 moves downward and contacts the motherboard, the pressing mechanism 4 presses the motherboard downward, and the motherboard is also plugged into the test base 2. The motherboard contacts the probe of the test base 2. The pressing mechanism 4 continues to operate so that the lifting mechanism 5 blocks the motherboard. The pressing mechanism 4 is closed, and the connection socket of the test device is plugged into the port on the motherboard to detect the circuit of the motherboard. When the motherboard circuit test is completed, the connection socket of the device is disconnected from the port on the motherboard, and the pressing mechanism 4 is started to move upward and reset. The pressing mechanism 4 resets and drives the lifting mechanism 5 to move upward and reset. The lifting mechanism 5 resets and drives the motherboard to move vertically upward and disconnect from the test base 2, avoiding the motherboard from being stuck and requiring people to remove it, ensuring that the motherboard can be quickly separated, and the pressing mechanism 4 is closed. The lifting mechanism 5 is then pulled to not limit the motherboard, and the motherboard can be removed. Then, qualified and unqualified motherboards are stored separately according to the test results.

[0041] When the main board is placed, the motor 43 is started to drive the screw 42 to reverse, and the screw 42 reverses to drive the connecting plate 44 to move downward. The connecting plate 44 moves downward to drive the sliding plate 45 to move downward. The sliding plate 45 moves downward and drives the pressure plate 47 to move downward through the pressure spring 48. The pressure plate 47 and the sliding plate 45 move downward to drive the lifting mechanism 5 to move downward. When the pressure plate 47 moves downward and contacts the main board, the pressure plate 47 presses the main board, which makes the main board plugged into the test base 2. Due to the action of the rubber block 49, the pressure plate 47 can press the main board more firmly. The sliding plate 45 continues to move downward to compress the pressure spring 48. At the same time, the sliding plate 45 also drives the lifting mechanism 5 to operate to jam the main board. Turn off the motor 43, and you can start testing the main board circuit. When the mainboard circuit test is completed, the motor 43 is started to drive the screw 42 to rotate forward, and the screw 42 rotates forward to drive the connecting plate 44 to move upward and reset. The reset of the connecting plate 44 drives the sliding plate 45 to move upward and reset. The sliding plate 45 moves upward so that the pressure spring 48 is stretched and reset, and the sliding plate 45 drives the pressure plate 47 to move upward and reset through the pressure spring 48. The reset of the pressure plate 47 and the sliding plate 45 drives the lifting mechanism 5 to move upward and reset. The reset of the lifting mechanism 5 drives the mainboard to move upward and reset. Turn off the motor 43, pull the lifting mechanism 5 to not jam the mainboard, and remove the mainboard for storage.

[0042] When the motor 43 starts and drives the screw 42 to reverse, the sliding plate 45 moves downward and drives the four inclined blocks 53 to move downward. At the same time, the pressing plate 47 moves downward and drives the four limit blocks 51 to move downward. The four limit blocks 51 move downward and drive the four lifting plates 52 to move downward. When the pressing plate 47 presses the main board, the main board is plugged into the test base 2. At this time, the main board stops moving downward, and the main board causes the four limit blocks 51 to stop moving downward. The four limit blocks 51 also cause the four lifting plates 52 to stop moving downward. The sliding plate 45 continues to move downward and drives the four inclined blocks 53 to move downward. The four inclined blocks 53 move downward and contact the four lifting plates 52. The four inclined blocks 53 drive the four lifting plates 52 to move inward. The four lifting plates 52 move inward and contact the bottom of the main board, turning off the motor 43. When the mainboard circuit test is completed, the motor 43 is started to drive the screw 42 to rotate forward, the sliding plate 45 moves upward, driving the four oblique blocks 53 to move upward, the four oblique blocks 53 move upward and disengage from the four lifting plates 52. At the same time, the pressing plate 47 moves upward and resets, driving the four lifting plates 52 to move upward and reset through the four limit blocks 51. The four lifting plates 52 move upward and drive the mainboard to move vertically upward. The mainboard moves vertically upward and is disconnected from the test base 2. The motor 43 is turned off, and the four lifting plates 52 are pulled outward to disengage from the mainboard. The mainboard stops being stuck and can be removed for storage.

[0043] Example 2

[0044] On the basis of embodiment 1, an unlocking mechanism 6 is further included. The unlocking mechanism 6 includes a mounting plate 61, a guide inclined plate 62, a connecting column 63 and a rotating cylinder 64. Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown, a connecting column 63 is fixed between the inner sides of the two lifting plates 52 on the left, and a connecting column 63 is also fixed between the inner sides of the two lifting plates 52 on the right. A rotating cylinder 64 is rotatably mounted on the middle parts of the left and right connecting columns 63. The upper front side of the front side of the stand 41 is symmetrically fixed with mounting plates 61. The front bottom sides of the left and right mounting plates 61 are fixed with guide inclined plates 62. The guide inclined plates 62 can drive the rotating cylinder 64 to move outward.

[0045] The material receiving mechanism 7 is also included. The material receiving mechanism 7 includes a vertical plate 71, a rotating material receiving plate 72, a coil spring 73 and a bow plate 74. Figure 1 、 Figure 2 and Figure 9 As shown, vertical plates 71 are symmetrically fixed to the front side of the top of the working platform 1, and a rotating material receiving plate 72 is rotatably connected between the upper parts of the left and right vertical plates 71. The rotating material receiving plate 72 can guide the main board. The rotating material receiving plate 72 is located below the pressure plate 47. The left and right sides of the rotating material receiving plate 72 are respectively connected to the inner side surfaces of the left and right vertical plates 71. The front side surface of the sliding plate 45 is symmetrically fixed with bow plates 74. The bow plate 74 is in contact with the rotating material receiving plate 72. When the bow plate 74 moves downward, the bow plate 74 can drive the rotating material receiving plate 72 to swing downward.

[0046] Also includes a stock plate 75, see Figure 9 As shown, a material storage plate 75 is installed between the upper parts of the front sides of the left and right vertical plates 71 by welding, and the material storage plate 75 can collect the main board.

[0047] When the four lifting plates 52 move downward, the four lifting plates 52 also drive the left and right connecting columns 63 to move downward. The left and right connecting columns 63 move downward and drive the left and right rotating cylinders 64 to move downward. The left and right rotating cylinders 64 move downward and disengage from the left and right guide inclined plates 62. Then, the four inclined blocks 53 drive the four lifting plates 52 to move inward and contact the bottom of the main board. The four lifting plates 52 move inward and drive the left and right rotating cylinders 64 to move inward a certain distance through the left and right connecting columns 63. When the main board circuit test is completed, the four lifting plates 52 are The plate 52 moves upward and drives the left and right rotating cylinders 64 to move upward through the connecting column 63. The left and right rotating cylinders 64 move upward and contact the left and right guide inclined plates 62. The left and right guide inclined plates 62 drive the left and right rotating cylinders 64 to move outward and reset. The left and right rotating cylinders 64 move outward and reset and drive the four lifting plates 52 to move outward and reset through the connecting column 63. The main board stops being stuck and can be caught for storage. In this way, there is no need to pull the lifting plate 52 to move outward to stop the main board from being stuck. It is convenient and quick, and improves work efficiency.

[0048] When the sliding plate 45 moves downward, the sliding plate 45 also drives the left and right side arch plates 74 to move downward. The left and right side arch plates 74 move downward and drive the rotating material receiving plate 72 to swing downward. The coil spring 73 is compressed, and the rotating material receiving plate 72 swings downward to a vertical state. The left and right side arch plates 74 limit the rotating material receiving plate 72. When the main board circuit test is completed, the sliding plate 45 moves upward and resets, driving the left and right side arch plates 74 to move upward and reset. The left and right side arch plates 74 are reset and do not rotate the material receiving plate. The motherboard on the rotating material receiving plate 72 falls into the material storage plate 75. Due to the action of the material storage plate 75, the motherboard is better collected. When the motherboard needs to be stored, the motherboard can be taken out from the material storage plate 75. In this way, there is no need for people to catch the fallen motherboard, which is more convenient for collecting the motherboard.

[0049] Example 3

[0050] On the basis of embodiment 1 and embodiment 2, a guide mechanism 8 is further included. The guide mechanism 8 includes a fixing rod 81 and a guide cylinder 82. Figure 1 、 Figure 2 and Figure 10 As shown, seven fixed rods 81 are evenly spaced and fixed to the rotating material receiving plate 72, and the middle parts of the seven fixed rods 81 are rotatably covered with guide cylinders 82, which can guide the main board.

[0051] When the main board falls onto the rotating receiving plate 72, the main board contacts the guide cylinder 82, and the guide cylinder 82 guides the main board. After being guided, the main board falls into the storage plate 75, preventing the main board and the rotating receiving plate 72 from sliding due to friction, thereby ensuring that the main board can slide smoothly for collection.

[0052] Example 4

[0053] A display screen mainboard circuit testing method comprises the following steps:

[0054] S1, placing the motherboard to be tested on the test base 2, and positioning the motherboard on the positioning plate 3;

[0055] S2, pressing the material, starting the motor 43 to drive the screw 42 to reverse, which makes the pressing plate 47 move downward to press the motherboard onto the test base 2 to complete the plugging, and then start testing the motherboard circuit;

[0056] S3, lifting the material. After the mainboard circuit test is completed, the motor 43 is started to drive the screw 42 to rotate forward, and the lifting plate 52 moves upward to drive the mainboard to move vertically upward and quickly separate from the test base 2 to avoid getting stuck and requiring someone to pick it up.

[0057] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in this field based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A display screen motherboard circuit test auxiliary tooling, comprising a working platform (1), a test base (2) and a positioning plate (3), wherein the test base (2) is fixedly connected to the middle of the top of the working platform (1), and positioning plates (3) for positioning the motherboard are fixedly connected to the left and right sides of the outer top of the working platform (1) symmetrically in front and back, and four positioning plates (3) are located at the four corners of the test base (2), characterized in that: It also includes a material pressing mechanism (4) and a material lifting mechanism (5), wherein the top of the working platform (1) is provided with a material pressing mechanism (4) for pressing the mainboard onto the test base (2), and the material lifting mechanism (5) is provided on the material pressing mechanism (4) for lifting the mainboard and separating it from the test base (2); The pressing mechanism (4) includes a stand (41), a screw (42), a motor (43), a connecting plate (44), a sliding plate (45), a sliding rod (46), a pressing plate (47) and a pressure spring (48). The stand (41) is fixed to the rear side of the top of the working platform (1). The screw (42) is rotatably connected between the middle of the top of the stand (41) and the rear side of the working platform (1). The connecting plate (44) is rotatably connected to the screw (42). The sliding plate (45) is slidably connected between the left and right sides of the stand (41). The top of the sliding plate (45) is fixedly connected to the front side of the connecting plate (44), and a sliding rod (46) is symmetrically slidably connected to the front side of the sliding plate (45). A pressure plate (47) for pressing the main board onto the test base (2) is fixedly connected between the bottom ends of the left and right sliding rods (46). A pressure spring (48) is symmetrically connected between the top of the pressure plate (47) and the bottom of the sliding plate (45). A motor (43) is fixedly connected to the middle of the rear side of the top of the working platform (1), and the output shaft end of the motor (43) is fixedly connected to the bottom end of the screw (42); The material lifting mechanism (5) includes a limit block (51), a lifting plate (52) and an inclined block (53). The left and right sides of the pressure plate (47) are symmetrically fixed to the limit blocks (51) in the front and back directions. The lower parts of the four limit blocks (51) are slidably connected to the lifting plate (52) for disconnecting the main board from the test base (2). The left and right sides of the sliding plate (45) are fixed to the inclined blocks (53) for driving the lifting plate (52) to move inward. The four inclined blocks (53) correspond to the four lifting plates (52).

2. A display screen mainboard circuit test auxiliary tool according to claim 1, characterized in that: It also includes a rubber block (49), and the rubber block (49) is arranged at the bottom of the pressing plate (47).

3. The display screen mainboard circuit test auxiliary tool according to claim 1, characterized in that: The unlocking mechanism (6) is further provided for driving the lifting plate (52) to move outward. The unlocking mechanism (6) comprises a mounting plate (61), a guide inclined plate (62), a connecting column (63) and a rotating cylinder (64). A connecting column (63) is fixedly connected between the inner side surfaces of the two lifting plates (52) on the left side, and a connecting column (63) is also fixedly connected between the inner side surfaces of the two lifting plates (52) on the right side. The middle portions of the left and right connecting columns (63) are both rotatably fitted with a rotating cylinder (64). The upper portion of the front side surface of the stand (41) is symmetrically fixed with the mounting plate (61). The front bottom portions of the left and right mounting plates (61) are both fixedly connected with the guide inclined plate (62) for driving the rotating cylinder (64) to move outward.

4. A display screen mainboard circuit test auxiliary tool according to claim 3, characterized in that: The material receiving mechanism (7) is further provided for collecting the main board. The material receiving mechanism (7) comprises a vertical plate (71), a rotating material receiving plate (72), a coil spring (73) and a bow plate (74). The vertical plate (71) is fixedly connected symmetrically to the front side of the top of the working platform (1). The upper parts of the vertical plates (71) on the left and right sides are connected in a rotatable manner with a rotating material receiving plate (72) for guiding the main board. The rotating material receiving plate (72) is located below the pressing plate (47). The left and right sides of the rotating material receiving plate (72) are respectively connected to the inner side surfaces of the vertical plates (71) on the left and right sides. The front side surface of the sliding plate (45) is fixedly connected symmetrically to the bow plate (74) for driving the rotating material receiving plate (72) to swing downward. The bow plate (74) is in contact with the rotating material receiving plate (72).

5. The display screen mainboard circuit test auxiliary tooling according to claim 4, characterized in that: It also includes a material storage plate (75), which is fixedly connected between the upper parts of the front side surfaces of the left and right vertical plates (71) and is used to collect the main plate.

6. The display screen mainboard circuit test auxiliary tool according to claim 5, characterized in that: The invention also includes a guide mechanism (8) for guiding the main board, the guide mechanism (8) including a fixed rod (81) and a guide cylinder (82), seven fixed rods (81) are fixedly connected to the rotating material receiving plate (72) at even intervals, and the middle parts of the seven fixed rods (81) are all rotatably fitted with a guide cylinder (82) for guiding the main board.

7. A display screen mainboard circuit testing method using the display screen mainboard circuit testing auxiliary tooling according to claim 1, characterized in that: The following steps are involved: S1, placing the motherboard to be tested on the test base (2), and positioning the motherboard with the positioning plate (3); S2, pressing the material, starting the motor (43) to drive the screw (42) to reverse, so that the pressing plate (47) moves downward to press the mainboard onto the test base (2) to complete the plugging, and then the mainboard circuit can be tested; S3, lifting the material. After the mainboard circuit test is completed, the motor (43) is started to drive the screw (42) to rotate forward, and the lifting plate (52) moves upward to drive the mainboard to move vertically upward and quickly separate from the test base (2).

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