A bottom guard plate hole insert detection device

Abstract

The application discloses a bottom guard plate hole insert detection device applied to the field of detection, which comprises a rack one, a placing plate is fixedly installed at the upper end of the rack one, a plurality of installation holes are formed in the placing plate, a control cabinet is installed outside the rack one, the control cabinet comprises an analysis unit, a power supply unit, a display screen, a control switch and a signal lamp, a metal block one is installed inside the installation hole, and the upper end face of the metal block one is coplanar with the upper end face of the placing plate.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to a bottom guard plate hole insert testing device. Background Technology

[0002] Metal parts c are embedded in the mounting holes of the bottom guard plate. To ensure that metal parts c are embedded in all mounting holes, it is necessary to inspect the metal parts c. Currently, the traditional method of manual visual inspection is generally used. However, with the development of industrial technology, there are many types of bottom guard plates. The overall dimensions, outlines, thicknesses, etc. of different types of bottom guard plates are significantly different. Moreover, the number of mounting holes and the position of the holes are different for different types of bottom guard plates, which greatly increases the difficulty of inspection.

[0003] Therefore, how to achieve high-precision detection of the bottom guard plate hole insert has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a bottom plate hole insert detection device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a bottom guard plate hole insert detection device, including a frame, a placement plate fixedly installed on the upper end of the frame, a plurality of mounting holes opened on the placement plate, a control console installed on the outside of the frame, the control console including an analysis unit, a power supply unit, a display screen, a control switch and an indicator light, a metal block installed inside the mounting holes, the upper end face of the metal block being coplanar with the upper end face of the placement plate; A second frame is installed on the outside of the first frame. A telescopic mechanism is installed on the side of the second frame facing the placement plate. A detection plate is fixedly connected to the output direction of the telescopic mechanism. The shape of the detection plate is the same as that of the placement plate. A detection hole coaxial with the mounting hole is opened on the detection plate. A distance measuring mechanism is installed on the detection plate. A conductive mechanism is installed inside the detection hole. The conductive mechanism includes a second metal block, the lower end face of which protrudes from the lower end face of the detection plate. The second metal block is annular, and an insulating sleeve is fixedly installed inside the annular ring. The insulating sleeve is hollow and has a slide rail installed inside. A test rod is slidably connected inside the insulating sleeve and cooperates with the slide rail. The length of the test rod is greater than the length of the second metal block. A baffle is machined on the top of the test rod, and the diameter of the baffle is greater than the diameter of the test rod. A target is installed on the top of the baffle.

[0006] According to the above technical solution, the positions of the plurality of mounting holes and the plurality of detection holes are coaxial with the positions of the mounting holes of the bottom protective plate to be tested. The bottom protective plate to be tested includes bottom protective plate a and bottom protective plate b. A wiring board is installed on the side of the detection plate away from the placement plate. Each group of metal blocks two is electrically connected to the wiring board. The wiring board is electrically connected to the power supply unit. Each group of metal blocks one is electrically connected to the power supply unit. The power supply unit and the analysis unit are signal connected.

[0007] According to the above technical solution, a number of positioning blocks are installed on the upper end of the placement plate, on the long side near the control console and on a set of adjacent wide sides, with the two sets of mounting holes on the placement plate near the top corners of the long and wide sides where the positioning blocks are installed as reference points.

[0008] According to the above technical solution, the ranging mechanism includes a ranging hole formed on a detection plate. A guide member coaxial with the ranging hole is installed at the upper end of the detection plate. A through hole with the same diameter as the ranging hole is machined at the center of the guide member. A ranging rod is slidably connected in the through hole. The shaft of the ranging rod passes through the ranging hole and penetrates the detection plate. A limit block is machined on the shaft of the ranging rod near its top end. The limit block is located above the guide member. Several sets of vision units are installed at the upper end of the detection plate. Each set of vision units is used to observe each set of targets and the ranging rod. The length of the ranging rod is much greater than the length of the second metal block. The vision units and the analysis unit are signal connected.

[0009] A method of using a bottom guard plate hole insert detection device includes: Step 1: Before placing the bottom guard plate to be tested, perform preliminary work to check for mechanical and electrical faults in the equipment, reduce subsequent work errors, and effectively improve work efficiency; Step 2: After troubleshooting mechanical and electrical faults, place the bottom protective plate a or the bottom protective plate b on top of the placement plate, and use the metal block one and the conductive mechanism to detect whether a metal part c is installed inside the mounting hole of the bottom protective plate; Step 3: Using the test rod and the vision unit, perform physical inspection on the metal part c through mechanical contact.

[0010] According to the above technical solution, step one includes: starting the telescopic machine, the telescopic machine extending towards the placement plate, the telescopic machine driving the detection plate to move towards the placement plate, and the detection plate driving the metal block two to move synchronously; The bottom end of the ranging rod first contacts the placement plate, and the ranging rod then moves away from the placement plate along the guide. The vision unit observes the distance the ranging rod moves. When the first metal block and the second metal block contact, the distance between the placement plate and the detection plate is equal to the length of the second metal block protruding from the lower end face of the detection plate. At this time, the distance the ranging rod moves upward should also be equal to the distance between the placement plate and the detection plate. According to the above technical solution, step one includes: When metal block one and metal block two come into contact, the control console starts the power supply unit, which supplies power to the terminal block. The current flows along the line through the terminal block, metal block two, and metal block one, and finally returns to the power supply unit. Since each group of metal blocks one is electrically connected to the power supply unit, the power supply unit can detect the working status of metal block one and metal block two based on the current conduction.

[0011] According to the above technical solution, step two includes: Place the bottom protective plate a above the placement plate, push the bottom protective plate a to fit the positioning block, so that the inlay hole of the bottom protective plate a is coaxial with the mounting hole that serves as the reference point; Start the telescopic machine to move the detection plate toward the bottom protective plate a. Since the positions of the mounting holes and the detection holes are coaxial with the positions of the inlay holes of the bottom protective plate a, the metal block two and the metal block one respectively contact the upper and lower ends of the metal part c in the inlay hole of the bottom protective plate a. When the power supply unit is activated, it supplies power to the terminal block. The current flows along the line through the terminal block, the second metal block, the metal part c in the inlay hole, and the first metal block to form a detection circuit. The current eventually returns to the power supply unit.

[0012] According to the above technical solution, step three includes: Using the test rod and vision unit, the metal part c is physically inspected by mechanical contact. During the movement of the metal block through the two-way mounting hole, the test rod first contacts the metal part c in the mounting hole. As the second metal block approaches the metal component c, the test rod is blocked by the fixed metal component c. Using the second metal block as a fixed reference, the test rod moves away from the bottom protective plate. During the movement, the test rod pushes the target to move synchronously. The visual unit detects the movement distance of the target to determine the installation status of the metal component c.

[0013] According to the above technical solution, step three includes: Case a: When the highest point of the offset metal part c is higher than the installation depth, the test rod corresponding to the offset metal part c is higher than the test rod corresponding to the qualified metal part c, making the corresponding target higher. Case b: When the highest point of the offset metal part c is lower than the installation depth, the target corresponding to the offset metal part c is lower than the test rod corresponding to the qualified metal part c. Case c: When metal part c is coaxial with the mounting hole but the installation depth is insufficient, the metal part c with the unqualified installation depth will push the test rod out during the inspection process, and the vision unit will detect the target moving upward. The vision unit transmits the detection results to the analysis unit, and the analysis unit controls the telescopic machine to stop working to avoid excessive compression of the metal part c by the second metal block, which would cause damage to the bottom guard plate and the body of the second metal block.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention, by setting a metal block and a conductive mechanism, realizes the accurate detection of the bottom protective plate hole insert, effectively improving production efficiency and detection accuracy. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the placement plate structure of the present invention; Figure 3 This is an exploded schematic diagram of the metal block of the present invention; Figure 4 This is a schematic diagram of the detection plate structure of the present invention; Figure 5 This is the present invention. Figure 4 Schematic diagram of area A; Figure 6 This is a schematic diagram of the detection hole of the present invention; Figure 7 This is a schematic diagram of the conductive mechanism structure of the present invention; Figure 8 This is a half-sectional schematic diagram of the conductive mechanism of the present invention; Figure 9 This is a schematic diagram of the placement of the bottom protective plate of the present invention; Figure 10 This is a circuit diagram of the present invention; In the diagram: 1. Frame 1; 2. Placement plate; 3. Mounting hole; 4. Control console; 5. Display screen; 6. Control switch; 7. Indicator light; 8. Frame 2; 9. Telescopic mechanism; 10. Detection plate; 11. Detection hole; 12. Metal block 1; 13. Conductive mechanism; 131. Metal block 2; 132. Insulating sleeve; 133. Slide rail; 134. Test rod; 135. Baffle; 136. Target; 14. Wiring board; 15. Positioning block; 16. Distance measuring hole; 17. Guide component; 18. Distance measuring rod; 19. Limiting block; 20. Vision unit. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-3 The present invention provides a technical solution: a bottom guard plate hole insert detection device, including a frame 1, a placement plate 2 fixedly installed on the upper end of the frame 1, a plurality of mounting holes 3 opened on the placement plate 2, and a control console 4 installed on the outside of the frame 1. The control console 4 includes an analysis unit, a power supply unit, a display screen 5, a control switch 6 and an indicator light 7.

[0018] A second frame 8 is installed on the outside of the first frame 1. A telescopic mechanism 9 is installed on the side of the second frame 8 facing the placement plate 2. A detection plate 10 is fixedly connected to the output direction of the telescopic mechanism 9. The outer dimensions of the detection plate 10 are the same as those of the placement plate 2. A detection hole 11 coaxial with the mounting hole 3 is opened on the detection plate 10. A distance measuring mechanism is installed on the detection plate 10.

[0019] Please see Figures 4-6 The positions of the mounting holes 3 and the detection holes 11 are coaxial with the positions of the mounting holes of the bottom protective plate to be tested. The mounting holes 3 and the detection holes 11 can be used to adapt to various types of bottom protective plates of different specifications. In this application, two sets of bottom protective plates to be tested are provided, including bottom protective plate a and bottom protective plate b. The mounting holes 3 and the detection holes 11 in this application can meet the detection of the mounting holes of bottom protective plate a and bottom protective plate b.

[0020] Please see Figure 7 and Figure 8 A metal block 12 is installed inside the mounting hole 3, and a conductive mechanism 13 is installed inside the detection hole 11. The conductive mechanism 13 includes a metal block 131. The upper end face of the metal block 12 is coplanar with the upper end face of the placement plate 2, and the lower end face of the metal block 131 protrudes from the lower end face of the detection plate 10.

[0021] Metal block 131 is circular, and an insulating sleeve 132 is fixedly installed inside the circular ring. The insulating sleeve 132 is hollow and a slide rail 133 is installed inside the insulating sleeve 132. A test rod 134 is slidably connected inside the insulating sleeve 132. The test rod 134 cooperates with the slide rail 133. The length of the test rod 134 is greater than the length of metal block 131. A baffle 135 is machined on the top of the test rod 134. The diameter of the baffle 135 is greater than the diameter of the test rod 134. A target 136 is installed on the top of the baffle 135.

[0022] A wiring board 14 is installed on the side of the detection board 10 away from the placement board 2. Each group of metal blocks 131 is electrically connected to the wiring board 14. The wiring board 14 is electrically connected to the power supply unit. Each group of metal blocks 12 is electrically connected to the power supply unit. The power supply unit and the analysis unit are connected by signals.

[0023] At the upper end of the placement plate 2, several positioning blocks 15 are installed on the long side and an adjacent set of wide sides near the control console 4, with the two sets of mounting holes 3 on the placement plate 2 near the top corners of the long and wide sides where the positioning blocks 15 are installed as reference points.

[0024] The ranging mechanism includes a ranging hole 16 formed on the detection plate 10. A guide 17 coaxial with the ranging hole 16 is installed at the upper end of the detection plate 10. A through hole with the same diameter as the ranging hole 16 is machined at the center of the guide 17. A ranging rod 18 is slidably connected in the through hole. The shaft of the ranging rod 18 passes through the ranging hole 16 and penetrates the detection plate 10. A limit block 19 is machined on the shaft of the ranging rod 18 near the top. The limit block 19 is located above the guide 17. Several sets of vision units 20 are installed at the upper end of the detection plate 10. Each set of vision units 20 is used to observe each set of targets 136 and the ranging rod 18. The length of the ranging rod 18 is much greater than the length of the metal block 131. The vision units 20 and the analysis unit are connected by signals.

[0025] A bottom guard plate hole insert detection device includes the following usage method: Step 1: Before placing the bottom guard plate to be tested, perform preliminary work to check for mechanical and electrical faults in the equipment, reduce subsequent work errors, and effectively improve work efficiency.

[0026] The staff starts the telescopic machine 9 by controlling switch 6. The telescopic machine 9 extends towards the placement plate 2. The telescopic machine 9 drives the detection plate 10 to move towards the placement plate 2. The detection plate 10 drives the metal block 131 to move synchronously to perform preliminary inspection, eliminate mechanical faults of related equipment, and improve inspection efficiency and accuracy.

[0027] Specifically, since the length of the measuring rod 18 is much greater than the length of the second metal block 131, the bottom end of the measuring rod 18 first contacts the placement plate 2. Therefore, the measuring rod 18 moves away from the placement plate 2 along the guide 17. The vision unit 20 observes the moving distance of the measuring rod 18. Since the upper end face of the first metal block 12 is coplanar with the upper end face of the placement plate 2, and the lower end face of the second metal block 131 protrudes from the lower end face of the detection plate 10, as the second metal block 131 moves closer to the first metal block 12, the measuring rod 18 first contacts the first metal block 12 and is pushed upward by the first metal block 12. When the first metal block 12 and the second metal block 131 contact each other, the distance between the placement plate 2 and the detection plate 10 is equal to the length of the second metal block 131 protruding from the lower end face of the detection plate 10. At this time, the distance that the measuring rod 18 moves upward should also be equal to the distance between the placement plate 2 and the detection plate 10.

[0028] When the telescopic mechanism 9 extends to its designed length, ideally, metal block 12 and metal block 2 131 will contact each other. The control console 4 will then activate its power supply unit, which will supply power to the terminal block 14. Current will flow along the circuit through the terminal block 14, metal block 2 131, and metal block 12, finally returning to the power supply unit of the control console 4 (e.g., ...). Figure 10 As shown in Figure A, since each group of metal blocks 12 is electrically connected to the power supply unit, the power supply unit can detect whether metal blocks 12 and 131 are working properly based on the current conduction, including the following situations: Scenario 1: If the circuit cannot be conducted, the detection results of the vision unit 20 should be analyzed. If the vision unit 20 observes that the displacement distance of the measuring rod 18 is less than the protrusion length of the second metal block 131, and the length of the measuring rod 18 at the lower end of the detection plate 10 is greater than the protrusion length of the second metal block 131, it indicates that the first metal block 12 and the second metal block 131 are not actually in contact. The telescopic machine 9 has a mechanical failure and should be maintained after power is cut off and the machine is stopped.

[0029] Scenario 2: If the circuit is conducting normally, but the vision unit 20 detects that the moving distance of the ranging rod 18 is less than the protruding length of the metal block 131, it may be that the contact surface between the ranging rod 18 and the guide 17 is stuck, or the vision unit 20 is faulty. After resetting and stopping the machine, the corresponding mechanical fault should be checked.

[0030] Scenario 3: Since each group of metal blocks 12 is electrically connected to the power supply unit, and each group of metal blocks 131 is connected to the power supply unit through the terminal block 14, if the circuit cannot be conducted, but the vision unit 20 detects no error, it indicates that the terminal block 14 is faulty or the circuit connecting the terminal block 14 to the power supply unit is faulty. Power should be disconnected for troubleshooting and repair.

[0031] Scenario 4: Since each group of metal blocks 12 is electrically connected to the power supply unit, if the circuit corresponding to some metal blocks 12 cannot be connected and the vision unit 20 detects no error, it may be that there are stains on the contact surface of the corresponding metal block 12 or metal block 2 131. After powering off and cleaning, perform a power-on test again. If it still cannot be connected, it indicates that the corresponding circuit is faulty, and power-off repair should be performed.

[0032] Scenario 5: When all circuits corresponding to metal block 12 are turned on and vision unit 20 detects no errors, it indicates that all components are working properly.

[0033] Step 2: After troubleshooting mechanical and electrical faults, place bottom plate a or bottom plate b on top of placement plate 2, and use metal block 12 and conductive mechanism 13 to check whether metal part c is installed inside the mounting hole of bottom plate.

[0034] Specifically, when the power supply unit is de-energized, the telescopic mechanism 9 retracts, moving the detection plate 10 and metal block 131 away from the placement plate 2. The operator then feeds the bottom guard plate to be tested along both sides of the placement plate 2 where the positioning block 15 is not installed, placing it above the placement plate 2. For example, bottom guard plate a is placed above the placement plate 2. The operator further pushes bottom guard plate a to fit against the positioning block 15, making the inlay hole of bottom guard plate a coaxial with the mounting hole 3, which serves as the reference point. For the placement of bottom guard plate a and bottom guard plate b, please refer to [reference needed]. Figure 9 .

[0035] After the bottom guard plate a is placed, the telescopic machine 9 is started again, so that the telescopic machine 9 drives the detection plate 10 to move towards the bottom guard plate a. Since the opening positions of several mounting holes 3 and several detection holes 11 are coaxial with the position of the inlay hole of the bottom guard plate a, the metal block 2 131 and the metal block 12 contact the upper and lower ends of the metal part c in the inlay hole of the bottom guard plate a respectively.

[0036] The power supply unit is activated, supplying power to the terminal block 14. Current flows sequentially along the circuit through the terminal block 14, metal block 131, metal component c within the mounting hole, and metal block 12, forming the detection circuit (e.g., Figure 10 As shown in B), the current eventually returns to the power supply unit.

[0037] The power supply unit determines whether a metal part c is installed in the corresponding mounting hole based on the conduction status of the current corresponding to each group of metal blocks 12, and transmits the detection result to the analysis unit. The detection result is directly displayed on the display screen 5. If a metal part c is missing, it indicates that the corresponding test circuit is open. The analysis unit directly controls the signal light 7 to issue an alarm, achieving a more accurate detection than manual visual inspection. At the same time, the current conduction speed is extremely fast, enabling rapid response, significantly shortening the single board detection time and improving work efficiency.

[0038] Step 3: Based on Example 2, only whether a metal part c is installed in the mounting hole of the bottom protective plate can be detected. However, the installation of the metal part c is a high-precision operation. If the metal part c is offset during installation, the following situation may occur. Using the test rod 134 and the vision unit 20, the metal part c is physically inspected by mechanical contact: If the metal part c is installed off-center or the part is coaxial with the mounting hole but the installation depth is insufficient, the metal part c may not be able to contact the metal block 12 or the metal block 2 131. At this time, the detection circuit cannot be turned on. The analysis unit judges that the mounting hole at this position is missing the metal part c according to the working principle of Example 2. When the staff reworks the bottom guard plate, they find that the missing point is actually installed with the metal part c, which causes a conflict in the workflow and affects production efficiency.

[0039] Therefore, the metal part c is physically inspected by means of mechanical contact using the test rod 134 and the vision unit 20. Specifically, since the length of the test rod 134 is greater than the length of the metal block 131, the test rod 134 first contacts the metal part c in the inlay hole during the process of the metal block 131 moving towards the inlay hole.

[0040] As the second metal block 131 approaches the metal part c, the test rod 134 is blocked by the fixed metal part c. Using the second metal block 131 as a fixed reference, the test rod 134 moves away from the bottom protective plate. During the movement, the test rod 134 pushes the target 136 to move synchronously. The vision unit 20 detects the movement distance of the target 136 to determine the installation status of the metal part c. Due to the installation offset of the metal part c, the metal part c is in an inclined state. At this time, the highest point of the offset metal part c may be higher or lower than the installation depth.

[0041] Case a: When the highest point of the offset metal part c is higher than the installation depth, the test rod 134 corresponding to the offset metal part c is higher than the test rod 134 corresponding to the qualified metal part c, making the corresponding target 136 higher.

[0042] Case b: Similarly, when the highest point of the offset metal part c is lower than the installation depth, the target 136 corresponding to the offset metal part c is lower than the test rod 134 corresponding to the qualified metal part c.

[0043] Case c: Since the metal part c is fixedly connected to the bottom plate, the metal part c is coaxial with the mounting hole and the installation depth of the metal part c in each mounting hole should be the same. When the metal part c is coaxial with the mounting hole but the installation depth is insufficient, the metal part c with unqualified installation depth will push the test rod 134 out during the detection process, and the vision unit 20 will detect the target 136 moving upward.

[0044] In the above situation, the vision unit 20 transmits the detection results to the analysis unit, which then controls the telescopic mechanism 9 to stop working to prevent excessive pressure from the metal block 131 on the metal part c, which could damage the bottom guard plate and the metal block 131 itself. The installation status of the metal part c within the mounting hole is further detected using the test rod 134 and the target 136, effectively improving detection accuracy and work efficiency. It should be further explained that, since there are a large number of inlay holes on the bottom protective plate, if the vision unit detects that more than 1 / 4 of the targets 136 have the above situation, it indicates that there is a problem with the opening of the inlay holes on the bottom protective plate, and the production process should be troubleshooted and optimized.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bottom guard plate hole insert detection device, comprising a frame (1), characterized in that: A placement plate (2) is fixedly installed on the upper end of the frame (1). The placement plate (2) has several mounting holes (3). A control console (4) is installed on the outside of the frame (1). The control console (4) includes an analysis unit, a power supply unit, a display screen (5), a control switch (6), and an indicator light (7). A metal block (12) is installed inside the mounting holes (3). The upper surface of the metal block (12) is coplanar with the upper surface of the placement plate (2). A second frame (8) is installed on the outside of the first frame (1). A telescopic machine (9) is installed on the side of the second frame (8) facing the placement plate (2). A detection plate (10) is fixedly connected to the output direction of the telescopic machine (9). The shape of the detection plate (10) is the same as that of the placement plate (2). A detection hole (11) coaxial with the mounting hole (3) is opened on the detection plate (10). A distance measuring mechanism is installed on the detection plate (10). The detection hole (11) is equipped with a conductive mechanism (13). The conductive mechanism (13) includes a metal block two (131). The lower end face of the metal block two (131) protrudes from the lower end face of the detection plate (10). The metal block two (131) is annular. An insulating sleeve (132) is fixedly installed inside the annular ring. The insulating sleeve (132) is hollow. A slide rail (133) is installed inside the insulating sleeve (132). A test rod (134) is slidably connected inside the insulating sleeve (132). The test rod (134) cooperates with the slide rail (133). The length of the test rod (134) is greater than the length of the metal block two (131). A baffle (135) is machined on the top of the test rod (134). The diameter of the baffle (135) is greater than the diameter of the test rod (134). A target (136) is installed on the top of the baffle (135).

2. The bottom protective plate hole insert detection device according to claim 1, characterized in that: The positions of several mounting holes (3) and several detection holes (11) are coaxial with the positions of the mounting holes of the bottom protective plate to be tested. The bottom protective plate to be tested includes bottom protective plate a and bottom protective plate b. A wiring board (14) is installed on the side of the detection plate (10) away from the placement plate (2). Each group of metal blocks two (131) is electrically connected to the wiring board (14). The wiring board (14) is electrically connected to the power supply unit. Each group of metal blocks one (12) is electrically connected to the power supply unit. The power supply unit and the analysis unit are signal connected.

3. The bottom guard plate hole insert detection device according to claim 2, characterized in that: On the upper end of the placement plate (2), a number of positioning blocks (15) are installed on the long side and a set of adjacent wide sides near the control console (4), with the two sets of mounting holes (3) on the placement plate (2) near the top corners of the long and wide sides where the positioning blocks (15) are installed as reference points.

4. The bottom protective plate hole insert detection device according to claim 3, characterized in that: The ranging mechanism includes a ranging hole (16) opened on the detection plate (10). A guide (17) coaxial with the ranging hole (16) is installed at the upper end of the detection plate (10). A through hole with the same diameter as the ranging hole (16) is machined at the center of the guide (17). A ranging rod (18) is slidably connected in the through hole. The shaft of the ranging rod (18) passes through the detection plate (10) through the ranging hole (16). A limit block (19) is machined on the shaft of the ranging rod (18) near the top. The limit block (19) is located above the guide (17). Several sets of vision units (20) are installed at the upper end of the detection plate (10). Each set of vision units (20) is used to observe each set of targets (136) and the ranging rod (18). The length of the ranging rod (18) is much greater than the length of the metal block (131). The vision unit (20) and the analysis unit are signal connected.

5. A method of using a bottom guard plate hole insert detection device, comprising using the bottom guard plate hole insert detection device as described in claim 4, characterized in that: include: Step 1: Before placing the bottom guard plate to be tested, perform preliminary work to check for mechanical and electrical faults in the equipment, reduce subsequent work errors, and effectively improve work efficiency; Step 2: After completing the troubleshooting of mechanical and electrical faults, place the bottom guard plate a or the bottom guard plate b above the placement plate (2), and use the metal block one (12) and the conductive mechanism (13) to detect whether the metal part c is installed inside the mounting hole of the bottom guard plate; Step 3: Using the test rod (134) and the vision unit (20), the metal part c is physically inspected by mechanical contact.

6. The method of using the bottom guard plate hole insert detection device according to claim 5, characterized in that: Step one includes: starting the telescopic machine (9), the telescopic machine (9) extending towards the placement plate (2), the telescopic machine (9) driving the detection plate (10) to move towards the placement plate (2), and the detection plate (10) driving the metal block two (131) to move synchronously; The bottom end of the measuring rod (18) first contacts the placement plate (2), and the measuring rod (18) moves away from the placement plate (2) along the guide (17). The vision unit (20) observes the moving distance of the measuring rod (18). When the first metal block (12) and the second metal block (131) are in contact, the distance between the placement plate (2) and the detection plate (10) is equal to the length of the second metal block (131) protruding from the lower end face of the detection plate (10). At this time, the distance that the measuring rod (18) moves upward should also be equal to the distance between the placement plate (2) and the detection plate (10).

7. The method of using the bottom guard plate hole insert detection device according to claim 6, characterized in that: Step one includes: When the first metal block (12) and the second metal block (131) come into contact, the control console (4) starts the power supply unit, and the power supply unit supplies power to the terminal block (14). The current flows along the line through the terminal block (14), the second metal block (131), and the first metal block (12) and finally returns to the power supply unit. Since each group of the first metal blocks (12) is electrically connected to the power supply unit, the power supply unit can detect the working status of the first metal block (12) and the second metal block (131) according to the current conduction status.

8. The method of using the bottom guard plate hole insert detection device according to claim 7, characterized in that: Step two includes: Place the bottom guard plate a above the placement plate (2), push the bottom guard plate a to fit the positioning block (15), so that the inlay hole of the bottom guard plate a is coaxial with the mounting hole (3) which serves as the reference point; Start the telescopic machine (9) to move the detection plate (10) toward the bottom guard plate a. Since the positions of the mounting holes (3) and the detection holes (11) are coaxial with the position of the inlay hole of the bottom guard plate a, the metal block two (131) and the metal block one (12) respectively contact the upper and lower ends of the metal part c in the inlay hole of the bottom guard plate a. When the power supply unit is activated, it supplies power to the terminal block (14). The current flows along the line through the terminal block (14), the second metal block (131), the metal part c in the inlay hole, and the first metal block (12) to form a detection circuit. The current eventually returns to the power supply unit.

9. The method of using the bottom guard plate hole insert detection device according to claim 8, characterized in that: Step three includes: Using the test rod (134) and vision unit (20), the metal part c is physically inspected by mechanical contact. During the process of the metal block two (131) moving towards the inlay hole, the test rod (134) first contacts the metal part c in the inlay hole. As the second metal block (131) approaches the metal part c, the test rod (134) is blocked by the fixed metal part c. With the second metal block (131) as a fixed reference, the test rod (134) moves away from the bottom plate. During the movement, the test rod (134) pushes the target (136) to move synchronously. The visual unit (20) detects the moving distance of the target (136) to determine the installation status of the metal part c.

10. The method of using the bottom guard plate hole insert detection device according to claim 9, characterized in that: Step three includes: Case a: When the highest point of the offset metal part c is higher than the installation depth, the test rod (134) corresponding to the offset metal part c is higher than the test rod (134) corresponding to the qualified metal part c, making the corresponding target (136) higher. Case b: When the highest point of the offset metal part c is lower than the installation depth, the target (136) corresponding to the offset metal part c is lower than the test rod (134) corresponding to the qualified metal part c. Case c: When the metal part c is coaxial with the mounting hole but the installation depth is insufficient, the metal part c with the unqualified installation depth will push the test rod (134) out during the detection process, and the vision unit (20) will detect the target (136) moving upward. The vision unit (20) transmits the detection results to the analysis unit, and the analysis unit controls the telescopic machine (9) to stop working to avoid the metal block two (131) from excessively squeezing the metal part c, which would cause damage to the bottom guard plate and the body of the metal block two (131).

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