A method for preventing leakage in production lines

Abstract

The present invention belongs to the technical field of display screen testing, and specifically is a method for preventing leakage detection of a production line. The specific implementation steps of the method include: S1, before a test fixture uses an ammeter to monitor VGH, VGL and VCOM voltage circuits, resistors are connected in series on the corresponding voltage circuits; S2, a test positioning device is used to fix the display screen to be tested, and a test fixture is used to detect it; S3, the display screen after the test is completed is classified and stored according to normal and abnormal conditions; wherein the test positioning device described above includes a positioning plate; a sequential connection component is provided on the top of the positioning plate; the positioning plate is connected to a fixing component through the sequential connection component; a positioning component is provided on the top of the positioning plate; the positioning plate is connected to a screen blocking component through the positioning component; this method solves the problem that an LCM product with a large current tested by an ammeter can still display normally, thereby improving the detection efficiency and the yield rate of product production.

Description

Technical Field

[0001] The invention belongs to the technical field of display screen testing, and in particular to a method for preventing leakage testing of a production line. Background Art

[0002] LCM, also known as liquid crystal display module, is a component that assembles liquid crystal display devices, connectors, control and drive, PCB circuit boards and structural parts. LCM testing is an important step to ensure the quality and performance of the display screen.

[0003] An ammeter is added to the VGH, VGL and VCOM of the LCM test fixture of the production line. When the test finds that the current exceeds the range of the product, it will be selected. At present, when the test fixture adds an ammeter to screen high-current products, when the LCM high current appears, due to the relatively large power of the LCM test fixture voltage, the LCM will still display normally, so the signal fed back to the tester is not strong. The tester needs to keep an eye on the ammeter to check whether the current is out of the range, and the steps are relatively cumbersome.

[0004] To this end, the present invention provides a method for preventing leakage detection of a production line. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a method for preventing leakage detection of a production line described in the present invention, the specific implementation steps of the method include: S1, before the test fixture uses an ammeter to monitor the VGH, VGL and VCOM voltage lines, connect resistors in series on the corresponding voltage lines; S2, use a test positioning device to fix the display screen to be tested, and use a test fixture to detect it; S3, store the display screen after the test according to normal and abnormal categories; this method solves the problem that the LCM product with a large current tested by the ammeter can still display normally, improves the detection efficiency, and improves the yield rate of product production.

[0007] Preferably, the test positioning device described above includes a positioning plate; a sequential connection component is provided on the top of the positioning plate; the positioning plate is connected to a fixing component via the sequential connection component; a positioning component is provided on the top of the positioning plate; the positioning plate is connected to a screen blocking component via the positioning component; this step forms a test positioning structure through the arrangement of the positioning plate, the sequential connection component, the fixing component and the positioning component, realizes the function of fixing the display screen and detecting the connection in sequence, solves the problem of arc damage to the contacts when the test fixture is connected to the display screen, and improves the quality of product production.

[0008] Preferably, the sequential connection component includes a positioning frame, a first spring, a first guide rod, a first pressure plate, a fixed block, a second spring, a second guide rod, a second pressure plate, a power line contact, a conductive rod and a test head; the positioning frame is slidably connected to the top of the positioning plate; the first spring is fixedly connected inside the positioning frame; a pair of the first springs are arranged inside the positioning frame, and are symmetrically arranged; the bottom of the first guide rod is fixedly connected to the end of the first spring away from the positioning frame; the first guide rod slides in the middle of the positioning frame; the bottom of the first pressure plate is fixedly connected to the top of a pair of first guide rods; the fixed block is fixedly connected to the top of the first pressure plate; a pair of the fixed blocks are arranged on the top of the first pressure plate, and are symmetrically arranged; the second spring is fixedly connected inside the fixed block; the bottom end of the second guide rod is fixedly connected to the end of the second spring away from the fixed block end; the second guide rod slides in the middle of the fixed block; the bottom of the second pressure plate is fixedly connected to the top of a pair of second guide rods; the power line contact is fixedly connected to the middle of the second pressure plate; the power line contacts are arranged in multiple groups in the middle of the second pressure plate; the conductive rod is fixedly connected to the middle of the first pressure plate; the conductive rod is arranged in multiple groups in the middle of the first pressure plate, and corresponds to the power line contacts; the test head is fixedly connected to the end of the conductive rod away from the power line contact; this step forms a sequential connection structure through the arrangement of a positioning frame, a first spring, a first guide rod, a first pressure plate, a second spring, a second guide rod, a power line contact and a conductive rod, so that when the display screen is connected, the display screen detection connection area is first connected to the test head, and then connected to the test fixture, which solves the problem of electric shock and wear caused by arcing during detection, and improves the quality of product production.

[0009] Preferably, the fixing assembly includes a fixing plate, a third guide rod, a third spring and a wire pressing block; the fixing plate is fixedly connected to the side wall of the first pressure plate; the third guide rod slides in the middle of the fixing plate; the third guide rod is arranged in multiple groups in the middle of the fixing plate, and is symmetrically arranged; the top of the wire pressing block is fixedly connected to the bottom end of the third guide rod; the third spring is sleeved on the outer side wall of the third guide rod away from the wire pressing block; one end of the third spring is fixedly connected to the top of the third guide rod; the other end of the third spring is fixedly connected to the top of the fixing plate; this step forms a pressing and fixing structure through the arrangement of the fixing plate, the third guide rod, the third spring and the wire pressing block, realizes the function of fixing the display screen wiring before detection, solves the problem of offset when the wiring contacts during display screen detection, improves the accuracy of detection connection, and reduces the situation of poor contact caused by offset during connection.

[0010] Preferably, the positioning assembly includes an adjusting screw, a clamping plate and a gasket; the adjusting screw is threadedly connected to the side wall of the positioning plate; a pair of adjusting screws are arranged on the side wall of the positioning plate and are symmetrically arranged; the side wall of the clamping plate is rotatably connected to the ends of a pair of adjusting screws close to each other; the clamping plate is slidably connected at the top of the positioning plate; the gasket is fixedly connected to the side wall of the clamping plate away from the adjusting screw; this step forms an adjustable positioning structure through the arrangement of the adjusting screw, the clamping plate and the gasket, realizes the function of adjusting the positioning of the display screen, solves the adaptability of the device to positioning display screens of different sizes, and improves the versatility of the device.

[0011] Preferably, the screen blocking assembly includes a sliding block, a fourth spring and a block; one end of the block is fixedly connected to the side wall of the clamping plate away from the adjusting screw rod; a pair of blocks are arranged on the side wall of the clamping plate; the fourth spring is fixedly connected between the pair of blocks; the sliding block is slidably connected to the outer side walls of the pair of blocks; this step forms a display screen blocking structure through the setting of the sliding block, the fourth spring and the block, realizes the function of limiting the blocking of the display screen on the top of the positioning plate, solves the problem of the display screen being offset when placed on the top of the positioning plate, and improves the stability of the display screen when placed on the top of the positioning plate.

[0012] Preferably, a handle is fixedly connected to the top of the second pressure plate; a rubber pad is fixedly connected to the top of the inner wall of the handle; in this step, through the arrangement of the handle and the rubber pad, the hand contacts the handle and the rubber pad when pressing the second pressure plate, thereby improving the convenience when pressing the second pressure plate and improving the comfort when pressing.

[0013] Preferably, a foot pad is fixedly connected to the bottom of the positioning plate; the foot pads are arranged in multiple groups at the bottom of the positioning plate and are evenly distributed at the four corners of the bottom of the positioning plate; when the positioning plate is placed on a workbench, the foot pads are in contact with the workbench, increasing the friction between the positioning plate and the workbench, reducing the sliding of the positioning plate, and improving the stability of the positioning plate when placed during detection.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The method for preventing leakage detection of a production line described in the present invention solves the problem that the ammeter still displays normally when testing a large current LCM product, thereby improving the detection efficiency and the yield rate of product production.

[0016] 2. The method for preventing leakage detection of production lines described in the present invention forms a sequential connection structure through the arrangement of a positioning frame, a first spring, a first guide rod, a first pressure plate, a second spring, a second guide rod, a power line contact and a conductive rod, so that when the display screen is connected, the display screen detection connection area is first connected to the test head and then connected to the test fixture, thereby solving the problem of electric shock and wear caused by electric arc during detection and improving the quality of product production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a flow chart of the steps for implementing the method of the present invention;

[0019] Figure 2 is a stereogram of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the clamping plate and the positioning plate in the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the positioning frame and the positioning plate in the present invention;

[0022] Figure 5 It is a schematic structural diagram of the cooperation between the wire pressing block and the first pressing plate in the present invention.

[0023] In the figure: 1. positioning plate; 2. positioning frame; 21. first spring; 22. first guide rod; 23. first pressure plate; 24. fixing block; 25. second spring; 26. second guide rod; 27. second pressure plate; 28. power line contact; 29. ​​conductive rod; 210. test head; 3. fixing plate; 31. third guide rod; 32. third spring; 33. pressure block; 4. adjusting screw rod; 41. clamping plate; 42. gasket; 5. sliding block; 51. fourth spring; 52. stopper; 6. handle; 61. rubber pad; 7. foot pad. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] like Figure 1 As shown, a method for preventing leakage detection of a production line according to an embodiment of the present invention, the specific implementation steps of the method include: S1, before the test fixture uses an ammeter to monitor the VGH, VGL and VCOM voltage circuits, a resistor is connected in series on the corresponding voltage circuit; S2, a test positioning device is used to fix the display screen to be tested, and a test fixture is used to detect it; S3, the display screens after the test are classified and stored according to normal and abnormal categories.

[0026] The principle of this solution is to increase the resistance and consume the output power of the corresponding voltage, so that the high-current LCM product will not get enough power and will pull down the corresponding voltage, so that the LCM display is abnormal or no display, thus giving intuitive and strong feedback to the LCM tester. The calculation formula of the resistance value of the series resistor on the corresponding voltage line is W=V² / R. The resistance value can be adjusted according to the products with different powers so that the remaining power after consuming the corresponding power just meets the needs of LCM, thereby ensuring the normal LCM test and screening the high-current LCM products; this method solves the problem that the ammeter will still display normally when testing the high-current LCM products, improves the detection efficiency, and improves the yield rate of product production.

[0027] like Figures 2 to 5 As shown, the test positioning device mentioned above includes a positioning plate 1; a sequential connection component is provided on the top of the positioning plate 1; the positioning plate 1 is connected to a fixing component through the sequential connection component; a positioning component is provided on the top of the positioning plate 1; the positioning plate 1 is connected to a screen blocking component through the positioning component; during operation, the product to be tested is placed on the top of the positioning plate 1, the position of the positioning component is adjusted, the sequential connection component is adjusted and connected to the test fixture, and when the sequential connection component is pressed for connection detection, the fixing component first fixes the display screen to be tested, and then performs a connection test; this step forms a test positioning structure through the setting of the positioning plate 1, the sequential connection component, the fixing component and the positioning component, realizes the function of fixing the display screen and performing sequential connection detection, solves the problem of arc damage to the contacts when the test fixture is connected to the display screen, and improves the quality of product production.

[0028] like Figure 2 , Figure 4 and Figure 5As shown, the sequential connection component includes a positioning frame 2, a first spring 21, a first guide rod 22, a first pressure plate 23, a fixing block 24, a second spring 25, a second guide rod 26, a second pressure plate 27, a power line contact 28, a conductive rod 29 and a test head 210; the positioning frame 2 is slidably connected to the top of the positioning plate 1; the first spring 21 is fixedly connected to the inside of the positioning frame 2; a pair of first springs 21 are arranged inside the positioning frame 2, and are symmetrically arranged; the bottom of the first guide rod 22 is fixedly connected to the end of the first spring 21 away from the positioning frame 2; the first guide rod 22 slides in the middle of the positioning frame 2; the bottom of the first pressure plate 23 is fixedly connected to the top of a pair of first guide rods 22; the fixing block 24 The second spring 25 is fixedly connected to the top of the first pressing plate 23; a pair of fixed blocks 24 are arranged at the top of the first pressing plate 23, and are symmetrically arranged; the second spring 25 is fixedly connected to the inside of the fixed block 24; the bottom end of the second guide rod 26 is fixedly connected to the end of the second spring 25 away from the fixed block 24; the second guide rod 26 slides in the middle of the fixed block 24; the bottom of the second pressing plate 27 is fixedly connected to the top of a pair of second guide rods 26; the power line contact 28 is fixedly connected to the middle of the second pressing plate 27; multiple groups of power line contacts 28 are arranged in the middle of the second pressing plate 27; the conductive rod 29 is fixedly connected to the middle of the first pressing plate 23; multiple groups of conductive rods 29 are arranged in the middle of the first pressing plate 23, and are aligned with the power line contacts 28 Corresponding; the test head 210 is fixedly connected to the end of the conductive rod 29 away from the power line contact 28; during operation, the display screen is placed on the top of the positioning plate 1 for positioning and fixing, the display screen detection connection area is placed in the middle of the positioning frame 2 close to the test head 210, the power line contact 28 is connected to the test fixture, the hardness of the first spring 21 is smaller than the hardness of the second spring 25, when the second pressing plate 27 is pressed toward the positioning frame 2, the first spring 21 is compressed first, the first pressing plate 23 and the first guide rod 22 are close to the positioning frame 2, so that the test head 210 is in contact with the display screen detection connection area, so that the conductive rod 29 is connected to the display screen detection circuit, and as the second pressing plate 27 continues to move downward, the fixing block 2 As the pressure increases, the fixed block 24 is compressed, and the second guide rod 26 and the second pressing plate 27 approach the first pressing plate 23, so that the power line contact 28 is connected to the conductive rod 29, so that the test fixture is connected to the display screen circuit and the test is performed; in this step, the positioning frame 2, the first spring 21, the first guide rod 22, the first pressing plate 23, the second spring 25, the second guide rod 26, the power line contact 28 and the conductive rod 29 are arranged to form a sequential connection structure, so that when the display screen is connected, the display screen detection connection area is first connected to the test head 210, and then connected to the test fixture, so as to solve the problem of electric shock and wear caused by arc during detection, and improve the quality of product production.

[0029] like Figure 5As shown, the fixing assembly includes a fixing plate 3, a third guide rod 31, a third spring 32 and a wire pressing block 33; the fixing plate 3 is fixedly connected to the side wall of the first pressing plate 23; the third guide rod 31 slides in the middle of the fixing plate 3; multiple groups of third guide rods 31 are arranged in the middle of the fixing plate 3, and are symmetrically arranged; the top of the wire pressing block 33 is fixedly connected to the bottom end of the third guide rod 31; the third spring 32 is sleeved on the outer side wall of the third guide rod 31 away from the wire pressing block 33; one end of the third spring 32 is fixedly connected to the top of the third guide rod 31; the other end of the third spring 32 is fixedly connected to the top of the fixing plate 3; during operation, when the first pressing plate 23 is pressed downward, the wire pressing block 33 contacts the display screen cable and performs After being pressed and fixed, the test head 210 is connected to the display cable again. When the first pressing plate 23 continues to move downward, the fixing plate 3 approaches the cable pressing block 33, and the fixing plate 3 slides on the outer wall of the third guide rod 31. The third spring 32 is stretched. After the detection is completed, the third spring 32 drives the third guide rod 31 and the cable pressing block 33 to reset. In this step, a pressing and fixing structure is formed by setting the fixing plate 3, the third guide rod 31, the third spring 32 and the cable pressing block 33, so as to realize the function of fixing the display cable before detection, solve the problem of offset when the cable is in contact during display detection, improve the accuracy of the detection connection, and reduce the situation of poor contact caused by offset during connection.

[0030] like Figure 2 and Figure 3 As shown, the positioning assembly includes an adjusting screw 4, a clamping plate 41 and a gasket 42; the adjusting screw 4 is threadedly connected to the side wall of the positioning plate 1; a pair of adjusting screws 4 are arranged on the side wall of the positioning plate 1, and are symmetrically arranged; the side walls of the clamping plate 41 are rotatably connected to the ends of a pair of adjusting screws 4 that are close to each other; the clamping plate 41 is slidably connected at the top of the positioning plate 1; the gasket 42 is fixedly connected to the side wall of the clamping plate 41 away from the adjusting screw 4; during operation, the display screen is placed on the top of the positioning plate 1, and the adjusting screw 4 is screwed at the same time to drive the clamping plate 41 to slide on the top of the positioning plate 1, so that the display screen is clamped and positioned at the top of the positioning plate 1, and the gasket 42 contacts the side wall of the display screen to play a buffering role; this step forms an adjustable positioning structure by adjusting the screw 4, the clamping plate 41 and the gasket 42, thereby realizing the function of adjusting the positioning of the display screen, solving the adaptability of the device to positioning display screens of different sizes, and improving the versatility of the device.

[0031] like Figure 3As shown, the screen blocking assembly includes a sliding block 5, a fourth spring 51 and a block 52; one end of the block 52 is fixedly connected to the side wall of the clamping plate 41 away from the adjusting screw rod 4; a pair of blocks 52 are arranged on the side wall of the clamping plate 41; the fourth spring 51 is fixedly connected between the pair of blocks 52; the sliding block 5 is slidably connected to the outer side walls of the pair of blocks 52; during operation, when the clamping plate 41 is adjusted, the blocks 52 move closer to or farther away from each other, the fourth spring 51 is compressed or stretched, and the sliding block 5 plays the role of connecting the pair of blocks 52. When the display screen is placed between the pair of clamping plates 41, the sliding block 5 and the block 52 play a blocking role; in this step, the display screen blocking structure is formed by setting the sliding block 5, the fourth spring 51 and the block 52, so as to realize the function of limiting and blocking the display screen on the top of the positioning plate 1, solve the problem that the display screen is offset when placed on the top of the positioning plate 1, and improve the stability of the display screen when placed on the top of the positioning plate 1.

[0032] like Figure 4 As shown, a handle 6 is fixedly connected to the top of the second pressure plate 27; a rubber pad 61 is fixedly connected to the top of the inner wall of the handle 6; during operation, the second pressure plate 27 is pressed by holding the handle 6, and the hand contacts the rubber pad 61; in this step, through the arrangement of the handle 6 and the rubber pad 61, the hand contacts the handle 6 and the rubber pad 61 when pressing the second pressure plate 27, thereby improving the convenience when pressing the second pressure plate 27 and improving the comfort when pressing.

[0033] like Figure 4 As shown, a foot pad 7 is fixedly connected to the bottom of the positioning plate 1; multiple groups of foot pads 7 are arranged at the bottom of the positioning plate 1, and are evenly distributed at the four corners of the bottom of the positioning plate 1; during operation, when the positioning plate 1 is placed on a workbench, the foot pad 7 contacts the workbench, increasing the friction between the positioning plate 1 and the workbench, reducing the sliding of the positioning plate 1, and improving the stability of the positioning plate 1 when placed during detection.

[0034] During operation, the product to be tested is placed on the top of the positioning plate 1, the position of the positioning component is adjusted, the sequential connection component is adjusted and connected to the test fixture, and when the sequential connection component is pressed for connection detection, the fixing component first fixes the display screen to be tested, and then the connection detection is performed; the display screen is placed on the top of the positioning plate 1 for positioning and fixing, the display screen detection connection area is placed in the middle of the positioning frame 2 close to the test head 210, the power line contact 28 is connected to the test fixture, the hardness of the first spring 21 is smaller than the hardness of the second spring 25, and when the second pressing plate 27 is pressed against the positioning frame 2, the first spring 27 is pressed against the positioning frame 2. The spring 21 is compressed first, and the first pressing plate 23 and the first guiding rod 22 are close to the positioning frame 2, so that the test head 210 contacts the display screen detection connection area, and the conductive rod 29 is connected to the display screen detection circuit. As the second pressing plate 27 continues to move downward, the fixed block 24 is subjected to increased pressure, and the fixed block 24 is compressed. The second guiding rod 26 and the second pressing plate 27 move closer to the first pressing plate 23, so that the power line contact 28 is connected to the conductive rod 29, so that the test fixture is connected to the display screen circuit and the test is performed; when the first pressing plate 23 is pressed downward, the pressing block 33 is connected to the display screen cable The first pressing plate 23 is pressed and fixed, and then the test head 210 is connected to the display cable. When the first pressing plate 23 continues to move downward, the fixing plate 3 approaches the pressing block 33, and the fixing plate 3 slides on the outer wall of the third guide rod 31. The third spring 32 is stretched. After the test is completed, the third spring 32 drives the third guide rod 31 and the pressing block 33 to reset. The display is placed on the top of the positioning plate 1, and the adjusting screw 4 is turned to drive the clamping plate 41 to slide on the top of the positioning plate 1, so that the display is clamped and positioned on the top of the positioning plate 1. The gasket 42 contacts the side wall of the display to act as a buffer. Function: when adjusting the clamping plate 41, the blocks 52 move closer to or farther from each other, the fourth spring 51 is compressed or stretched, and the sliding block 5 connects a pair of blocks 52. When the display screen is placed between a pair of clamping plates 41, the sliding block 5 and the block 52 play a blocking role; hold the handle 6 to press the second pressure plate 27, and the hand contacts the rubber pad 61; when the positioning plate 1 is placed on the workbench, the foot pad 7 contacts the workbench, which increases the friction between the positioning plate 1 and the workbench, reduces the sliding of the positioning plate 1, and improves the stability of the positioning plate 1 when placed during detection.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preventing leakage detection of a production line, characterized in that: The specific implementation steps of the method include: S1. Before the test fixture uses an ammeter to monitor the VGH, VGL and VCOM voltage lines, Connect a resistor in series on the corresponding voltage line; S2. Use the test positioning device to fix the display screen to be tested, and use the test fixture to Detection; S3, storing the tested display screens according to normal and abnormal conditions; The test positioning device described in S2 comprises a positioning plate (1); a sequential connection component is provided on the top of the positioning plate (1); the positioning plate (1) is connected to a fixing component via the sequential connection component; a positioning component is provided on the top of the positioning plate (1); the positioning plate (1) is connected to a blocking component via the positioning component, and the sequential connection component comprises a positioning frame (2), a first spring (21), a first guide rod (22), a first pressure plate (23), a fixing block (24), a second spring (25), a second guide rod (26), a second pressure plate (27), a power line contact (28), a conductive rod (29) and a test head (210); the positioning frame (2) is slidably connected to the top of the positioning plate (1); the first spring (21) is fixedly connected to the inside of the positioning frame (2); a pair of the first springs (21) are arranged inside the positioning frame (2) and are symmetrically arranged; the bottom of the first guide rod (22) is fixedly connected to the end of the first spring (21) away from the positioning frame (2); the first guide rod (22) slides in the middle of the positioning frame (2); the first pressure plate (2 3) The bottom is fixedly connected to the top of a pair of first guide rods (22); the fixed block (24) is fixedly connected to the top of the first pressure plate (23); a pair of the fixed blocks (24) are arranged on the top of the first pressure plate (23) and are symmetrically arranged; the second spring (25) is fixedly connected inside the fixed block (24); the bottom end of the second guide rod (26) is fixedly connected to the end of the second spring (25) away from the fixed block (24); the second guide rod (26) slides in the middle of the fixed block (24); the second pressure plate (27 ) is fixedly connected at the bottom to the top of a pair of second guide rods (26); the power line contact (28) is fixedly connected to the middle of the second pressure plate (27); the power line contact (28) is arranged in multiple groups in the middle of the second pressure plate (27); the conductive rod (29) is fixedly connected to the middle of the first pressure plate (23); the conductive rod (29) is arranged in multiple groups in the middle of the first pressure plate (23) and corresponds to the power line contact (28); the test head (210) is fixedly connected to the end of the conductive rod (29) away from the power line contact (28).

2. According to claim 1, a method for preventing leakage detection of a production line is characterized in that: The fixing assembly comprises a fixing plate (3), a third guide rod (31), a third spring (32) and a wire pressing block (33); the fixing plate (3) is fixedly connected to the side wall of the first pressing plate (23); the third guide rod (31) slides in the middle of the fixing plate (3); a plurality of third guide rods (31) are arranged in the middle of the fixing plate (3) and are symmetrically arranged; the top of the wire pressing block (33) is fixedly connected to the bottom of the third guide rod (31); the third spring (32) is sleeved on the outer side wall of the third guide rod (31) away from the wire pressing block (33); one end of the third spring (32) is fixedly connected to the top of the third guide rod (31); and the other end of the third spring (32) is fixedly connected to the top of the fixing plate (3).

3. According to claim 1, a method for preventing leakage detection of a production line is characterized in that: The positioning assembly comprises an adjusting screw (4), a clamping plate (41) and a gasket (42); the adjusting screw (4) is threadedly connected to the side wall of the positioning plate (1); a pair of adjusting screws (4) are arranged on the side wall of the positioning plate (1) and are symmetrically arranged; the side wall of the clamping plate (41) is rotatably connected to the ends of the pair of adjusting screws (4) close to each other; the clamping plate (41) is slidably connected to the top of the positioning plate (1); and the gasket (42) is fixedly connected to the side wall of the clamping plate (41) away from the adjusting screw (4).

4. According to claim 3, a method for preventing leakage detection of a production line is characterized in that: The screen blocking assembly comprises a sliding block (5), a fourth spring (51) and a block (52); one end of the block (52) is fixedly connected to a side wall of the clamping plate (41) away from the adjusting screw rod (4); a pair of blocks (52) are arranged on the side wall of the clamping plate (41); the fourth spring (51) is fixedly connected between the pair of blocks (52); and the sliding block (5) is slidably connected to the outer side walls of the pair of blocks (52).

5. According to claim 1, a method for preventing leakage detection of a production line is characterized in that: A handle (6) is fixedly connected to the top of the second pressing plate (27); and a rubber pad (61) is fixedly connected to the top of the inner wall of the handle (6).

6. According to claim 1, a method for preventing leakage detection of a production line is characterized in that: The bottom of the positioning plate (1) is fixedly connected with a foot pad (7); a plurality of groups of the foot pads (7) are arranged at the bottom of the positioning plate (1) and are evenly distributed at the four corners of the bottom of the positioning plate (1).

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