A mold steel surface defect detection equipment

Abstract

The present invention relates to the technical field of surface defect detection, and discloses a mold steel surface defect detection device, comprising a fixed base, the top of the fixed base is fixedly connected with a placing platform, the side of the placing platform is fixedly connected with a support plate, the top and bottom of the side of the support plate are fixedly connected with a distance adjusting mechanism, the bottom of the top distance adjusting mechanism and the top of the bottom distance adjusting mechanism are fixedly connected with a detection camera, and the side of the distance adjusting mechanism is movably connected with a limiting mechanism; the present invention is provided with a distance adjusting mechanism at the top and bottom of the limiting mechanism, and the distance adjusting mechanism is connected with a detection camera, so that both sides of the mold steel plate can be detected at the same time, the servo motor starts and drives the two moving blocks to move toward or oppositely, and when the moving block moves, the driven block also moves the same distance as the moving block, so the moving block and the detection camera above the driven block move equidistantly, and cleaning nozzles of different sizes can be accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of surface defect detection, and more specifically to a die steel surface defect detection device. Background Art

[0002] Die steel is a type of steel used to make cold stamping dies, hot forging dies, die-casting dies and other dies. Dies are the main processing tools for manufacturing parts in industrial sectors such as machinery manufacturing, radio instruments, motors, and electrical appliances. The quality of the die directly affects the quality of the pressure processing process, the precision output of the product and the production cost. The quality and service life of the die are mainly affected by the steel selected and heat treatment of the die in addition to reasonable structural design and processing accuracy.

[0003] If the mold steel is irregular, the mold produced will have quality problems, which will affect the production of the mold. When cutting large mold steel, the original surface will be used as the base surface for cutting. If the original surface is not flat, it will directly affect the quality of subsequent processed products. Therefore, it is necessary to test its surface.

[0004] Before cutting mold steel into templates of different sizes, it is necessary to inspect its surface defects. At present, when inspecting, if various inspection cameras are used for inspection, due to the different sizes of mold steel, when inspecting it, it is impossible to ensure that all parts of the mold steel are inspected when using one camera for inspection. In addition, during the inspection, since the mold steel is in a conveying state, it will move, and the moving mold steel will reduce the inspection accuracy. After inspecting one side, it needs to be turned over before inspecting the other side, and the inspection work efficiency is low;

[0005] Before testing, various impurities will adhere to the surface of the mold steel, which will cause erroneous test results. Cleaning the mold steel requires a lot of human resources. If smart equipment is used for cleaning, the cost will be high. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a mold steel surface defect detection device to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mold steel surface defect detection device, comprising a fixed base, the top of the fixed base is fixedly connected to a placement platform, the side of the placement platform is fixedly connected to a support plate, the top and bottom of the side of the support plate are fixedly connected to a distance adjustment mechanism, the bottom of the distance adjustment mechanism at the top and the top of the distance adjustment mechanism at the bottom are fixedly connected to a detection camera, the side of the distance adjustment mechanism is movably connected to a limiting mechanism, the side of the fixed base is fixedly connected to a shielding box, and the inside of the shielding box is movably connected to a cleaning mechanism;

[0008] The distance adjustment mechanism includes a servo motor that can provide power, an output screw is fixedly connected to the side of the servo motor, both ends of the side of the output screw are threadedly connected to moving blocks, the bottom ends of the two moving blocks are provided with sliding grooves that are compatible with the sliding blocks, the bottom ends of the sliding blocks are movably connected to a shearing plate, and the moving block is movably connected to the driven block through the shearing plate.

[0009] In a preferred embodiment, a sliding groove adapted to the sliding block is provided at the bottom end of the driven block, the bottom ends of the moving block and the driven block can be moved by the sliding block, the bottom end of the sliding block is movably connected by a shear plate, and the thread grooves on both sides of the output screw are mirror-symmetrical about the center plane of the output screw.

[0010] In a preferred embodiment, a through hole that does not contact the output screw is opened on the inner side of the driven block, and a limiting hole adapted to the limiting rod is opened on the side of the driven block away from the output screw, and both sides of the limiting rod are fixedly connected to the side of the support plate, and the distance adjusting mechanism at the top and the distance adjusting mechanism at the bottom move synchronously.

[0011] In a preferred embodiment, the limiting mechanism includes a synchronous belt connected to the output screw, and the side of the synchronous belt away from the servo motor is fixedly connected to a driven screw, and thread grooves are provided at both ends of the side of the driven screw. The sides of the driven screw thread grooves are threadedly connected to movable plates, and the tops of the two movable plates are fixedly connected to the limiting plates.

[0012] In a preferred embodiment, the two limit plates are provided with inclined surfaces on the inside away from the side of the detection camera, the bottom end of the limit plate contacts the top of the placement platform, the thread groove on the side of the driven screw is mirror-symmetrical about the center plane of the driven screw, and the internal length of the two driven screws is the same as the outer length of the two moving blocks.

[0013] In a preferred embodiment, the cleaning mechanism includes an adjustable rotating wheel, the side of the rotating wheel is fixedly connected to an output gear, the bottom end of the output gear is meshed with a driven gear, the side of the output gear is movably connected to an upper arc plate, the side of the driven gear is fixedly connected to a rotating rod, the side of the rotating rod is fixedly connected to a cross connecting rod, and the side of the cross connecting rod is fixedly connected to a cleaning rod.

[0014] In a preferred embodiment, a mold steel plate is placed above the placement platform, and cleaning nozzles are provided at the top and bottom ends of the mold steel plate. The upper cleaning nozzle is fixedly connected to the inner side of the shielding box, and the lower cleaning nozzle is fixedly connected to the inner side of the placement platform. An upper arc plate is provided at the top of the mold steel plate, and a collecting assembly is provided at the bottom end of the mold steel plate.

[0015] In a preferred embodiment, the cleaning rod is located in the collecting assembly, the top and bottom ends of the mold steel plate are movably connected with a cleaning rod, and the top and bottom ends of the mold steel plate are movably connected with two cleaning rods, and the structure inside the upper arc plate is the same as that inside the collecting assembly and is symmetrical about the mold steel plate.

[0016] In a preferred embodiment, the collecting assembly includes a fixed arc plate fixedly connected to the placing platform, a mounting groove adapted to the magnetic block is provided at the bottom end of the side of the fixed arc plate, an arc filter plate is fixedly connected to the side of the magnetic block away from the fixed arc plate, filter holes are provided inside the arc filter plate, and a lower scraper rod is fixedly connected to the top of the arc filter plate close to the side of the fixed arc plate.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention has a distance adjustment mechanism at the top and bottom of the limit mechanism, and the distance adjustment mechanism is connected with a detection camera, so that both sides of the mold steel plate can be detected at the same time. For mold steel plates of different sizes, when detecting, the servo motor starts and drives the two moving blocks to move towards or in the opposite direction. When the moving block moves, the driven block also moves the same distance as the moving block. Therefore, the detection camera above the moving block and the driven block moves at an equal distance, and cleaning nozzles of different sizes can be accurately detected;

[0019] 2. When the servo motor of the present invention drives the moving block and the driven block to adjust through the output screw, the output screw drives the driven screw to rotate through the synchronous belt. When the driven screw rotates, it drives the two moving plates to move towards or in the opposite direction. The limit plate above the moving plate rotates synchronously. Therefore, the limit plate will be adjusted with the servo motor to fix the two sides of the cleaning nozzles of different sizes, so that it will not shake when moving, thereby ensuring the detection accuracy;

[0020] 3. The present invention is provided with a cleaning nozzle and a cleaning rod. When the mold steel plate passes through the cleaning mechanism, the cleaning nozzle will rinse its upper and lower surfaces. After rinsing, the upper and lower surfaces of the cleaning nozzle will pass through two cleaning rods. The first cleaning rod cleans the upper and lower surfaces of the cleaning nozzle, and the second cleaning rod wipes the cleaned mold steel plate, so that the upper and lower surfaces of the cleaning nozzle are relatively clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the back side of the overall structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the overall structure of the limiting mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of the connection structure between the limiting mechanism and the distance adjusting mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the distance adjustment mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the internal structure of the driven block of the present invention.

[0027] Figure 7 It is a schematic diagram of the internal structure of the shielding box of the present invention.

[0028] Figure 8 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0029] Fig. 9 It is a schematic diagram of the structure of the collection component of the present invention.

[0030] The accompanying drawings are marked as follows: 1. fixed base; 2. placing platform; 3. support plate; 4. distance adjustment mechanism; 401. servo motor; 402. output screw; 403. moving block; 404. driven block; 405. limit rod; 406. sliding block; 407. scissor plate; 5. detection camera; 6. limit mechanism; 601. synchronous belt; 602. driven screw; 603. moving plate; 604. limit plate; 7. shielding box; 8. cleaning mechanism; 801. rotating wheel; 802. output gear; 803. driven gear; 804. upper arc plate; 805. collecting assembly; 8051. fixed arc plate; 8052. magnetic block; 8053. arc filter plate; 8054. lower scraper rod; 806. rotating rod; 807. cross connecting rod; 808. cleaning rod; 9. mold steel plate; 10. cleaning nozzle. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The mold steel surface defect detection equipment involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The present invention provides a mold steel surface defect detection device, including a fixed base 1, the top of the fixed base 1 is fixedly connected with a placing platform 2, the side of the placing platform 2 is fixedly connected with a supporting plate 3, the top and bottom of the side of the supporting plate 3 are fixedly connected with a distance adjusting mechanism 4, the bottom end of the top distance adjusting mechanism 4 and the top of the bottom distance adjusting mechanism 4 are fixedly connected with a detection camera 5, the side of the distance adjusting mechanism 4 is movably connected with a limiting mechanism 6, the side of the fixed base 1 is fixedly connected with a shielding box 7, and the inside of the shielding box 7 is movably connected with a cleaning mechanism 8.

[0033] Reference Figure 2-Figure 6 The distance adjustment mechanism 4 includes a servo motor 401 that can provide power. The side of the servo motor 401 is fixedly connected with an output screw 402. Both ends of the side of the output screw 402 are threadedly connected with moving blocks 403. The bottom ends of the two moving blocks 403 are provided with a slide groove that matches the sliding block 406. The bottom end of the sliding block 406 is movably connected with a shearing plate 407. The moving block 403 is movably connected to the driven block 404 through the shearing plate 407. The bottom end of the driven block 404 is provided with a slide groove that matches the sliding block 406. The bottom end of the moving block 404 can be moved by the sliding block 406, and the bottom end of the sliding block 406 is movably connected through the shear plate 407. The thread grooves on both sides of the output screw 402 are mirror-symmetrical about the central plane of the output screw 402. A through hole that does not contact the output screw 402 is provided on the inner side of the driven block 404, and a limiting hole matched with the limiting rod 405 is provided on the side of the driven block 404 away from the output screw 402. Both sides of the limiting rod 405 are fixedly connected to the side of the support plate 3, and the top distance adjusting mechanism 4 moves synchronously with the bottom distance adjusting mechanism 4.

[0034] In the embodiment of the present application, when the mold steel plates 9 of different sizes are inspected, the servo motor 401 controls the output screw 402 to rotate. When the output screw 402 rotates, the thread grooves on both sides of the output screw 402 are mirror-symmetrical about the central plane of the output screw 402. Therefore, the two moving blocks 403 threadedly connected to the output screw 402 will move outward or inward, that is, they will move inward when inspecting the mold steel plates 9 of small sizes, and move outward when inspecting the mold steel plates 9 of large sizes. When the moving block 403 moves outward or inward, it will drive the sliding block 406 in the moving block 403 to slide, and when the sliding block 406 slides, the scissor plate 407 will rotate. The driven block 404 above the shear plate 407 moves, and the moving block 403 and the driven block 404 are connected by the shear plate 407, so the moving block 403 and the driven block 404 move equidistantly. Therefore, the detection camera 5 detects the upper and lower surfaces of the mold steel plate 9 equidistantly to ensure the detection accuracy and avoid missed positions. The driven block 404 is connected and moved by the shear plate 407, so the driven block 404 will not contact the output screw 402 to avoid problems during movement, and the moving block 403 and the driven block 404 are limited by the limit rod 405 to ensure their stability during movement.

[0035] Reference Figure 3 and Figure 4 The limiting mechanism 6 includes a synchronous belt 601 connected to the output screw 402, and the side of the synchronous belt 601 away from the servo motor 401 is fixedly connected to the driven screw 602, and the two ends of the side of the driven screw 602 are provided with threaded grooves, and the sides of the threaded grooves of the driven screw 602 are threadedly connected with moving plates 603, and the tops of the two moving plates 603 are fixedly connected with limiting plates 604, and the insides of the two limiting plates 604 away from the sides of the detection camera 5 are provided with inclined surfaces, and the bottom ends of the limiting plates 604 are in contact with the top of the placement platform 2, and the threaded grooves on the sides of the driven screws 602 are mirror-symmetrical about the central plane of the driven screws 602, and the internal lengths of the two driven screws 602 are the same as the outer lengths of the two moving blocks 403.

[0036] In the embodiment of the present application, when the distance adjustment mechanism 4 is adjusted to adapt to mold steel plates 9 of different sizes, the output screw 402 will synchronously drive the synchronous belt 601 to rotate, and when the synchronous belt 601 rotates, the driven screw 602 will rotate synchronously. At this time, the two movable plates 603 and the limit plates 604 will also move toward or oppositely, and the mold steel plate 9 will not move left or right in the forward direction, thereby ensuring its detection accuracy, thereby adapting to mold steel plates 9 of different sizes, and the internal length of the two driven screws 602 is the same as the outer length of the two movable blocks 403. Therefore, the movable plate 603 just limits the mold steel plate 9 and prevents it from moving left or right in the forward direction. At this time, the detection camera 5 above the movable block 403 can just detect both sides of the mold steel plate 9.

[0037] Reference Figure 7 , Figure 8 as well as Fig. 9 The cleaning mechanism 8 includes an adjustable rotating wheel 801, an output gear 802 is fixedly connected to the side of the rotating wheel 801, a driven gear 803 is meshed at the bottom end of the output gear 802, an upper arc plate 804 is movably connected to the side of the output gear 802, a rotating rod 806 is fixedly connected to the side of the driven gear 803, a cross connecting rod 807 is fixedly connected to the side of the rotating rod 806, a cleaning rod 808 is fixedly connected to the side of the cross connecting rod 807, a mold steel plate 9 is placed above the placement platform 2, a cleaning nozzle 10 is provided at the top and bottom of the mold steel plate 9, the upper cleaning nozzle 10 is fixedly connected to the inner side of the shielding box 7, the lower cleaning nozzle 10 is fixedly connected to the inner side of the placement platform 2, an upper arc plate 804 is provided at the top of the mold steel plate 9, and a There is a collecting component 805, and a cleaning rod 808 is located in the collecting component 805. The top and bottom ends of the mold steel plate 9 are movably connected with the cleaning rod 808, and the top and bottom ends of the mold steel plate 9 are movably connected with two cleaning rods 808. The structure inside the upper arc plate 804 is the same as that inside the collecting component 805 and is symmetrical about the mold steel plate 9. The collecting component 805 includes a fixed arc plate 8051 fixedly connected to the placing platform 2, and the bottom end of the side of the fixed arc plate 8051 is provided with a mounting groove compatible with the magnetic block 8052. The magnetic block 8052 is fixedly connected to an arc filter plate 8053 on the side away from the fixed arc plate 8051, and a filtering hole is provided inside the arc filter plate 8053. The top of the arc filter plate 8053 is fixedly connected to the side of the fixed arc plate 8051.

[0038] In the embodiment of the present application, after the cleaning nozzle 10 is rinsed, there are four cleaning rods 808 on the side of the cross connecting rod 807, and the four cleaning rods 808 are arranged in two rows, with two in each row. The cleaning rod 808 that contacts the mold steel plate 9 first cleans it, and the cleaning rod 808 that contacts the mold steel plate 9 later will wipe it dry to avoid water vapor causing errors in the detection. After the first cleaning rod 808 cleans the mold steel plate 9 for a period of time, when the mold steel plate 9 is not loaded, the rotating wheel 801 rotates and drives the output gear 802 to rotate, and the output gear 802 drives the driven gear 803 to rotate, the output gear 802 rotates counterclockwise, and the driven gear 803 rotates clockwise. The cleaning rod 808 that contacts the mold steel plate 9 first at the top rotates to a higher position and then contacts the mold steel plate 9 The cleaning rod 808 will contact the mold steel plate 9 first, and the cleaning rod 808 that contacts the mold steel plate 9 first will rotate downward, and the cleaning rod 808 will contact the lower scraper rod 8054 when rotating, to clean the cleaning rod 808, so that the cleaning rod 808 can be reused. Since water flows downward, impurities can be collected only through the collecting component 805 below. The arc filter plate 8053 in the collecting component 805 will collect the impurities scraped off the upper and lower surfaces of the mold steel plate 9, and the arc filter plate 8053 is connected to the fixed arc plate 8051 through the magnetic block 8052. When replacing, just pull out the magnetic block 8052 from the fixed arc plate 8051. Therefore, it can be quickly replaced, which is convenient for replacing the arc filter plate 8053 that collects impurities, and there is no need to shut down for long-term maintenance.

[0039] The working principle of the present invention is as follows: the mold steel plate 9 is placed on the placement platform 2, and passes through the cleaning mechanism 8, the limiting mechanism 6 and the distance adjustment mechanism 4 in sequence. When the mold steel plate 9 passes through the cleaning mechanism 8, the cleaning nozzle 10 in the cleaning mechanism 8 will rinse the upper and lower surfaces of the mold steel plate 9. The rinsed mold steel plate 9 passes through the cleaning rod 808 in the cleaning mechanism 8. Two cleaning rods 808 are provided on the upper and lower sides of the mold steel plate 9. The cleaning rod 808 that contacts the mold steel plate 9 first cleans the upper and lower surfaces of the cleaning nozzle 10, and the cleaning rod 808 that contacts the mold steel plate 9 later wipes the cleaned mold steel plate 9, so that the upper and lower surfaces of the cleaning nozzle 10 are relatively clean.

[0040] After a cleaning rod 808 cleans the mold steel plate 9 for a period of time, when the mold steel plate 9 is not loaded with materials, the rotating wheel 801 is rotated at this time. When the rotating wheel 801 rotates, it drives the output gear 802 to rotate, and the output gear 802 drives the driven gear 803 to rotate. The output gear 802 rotates counterclockwise, and the driven gear 803 rotates clockwise. The cleaning rod 808 that first contacts the mold steel plate 9 at the top rotates to a higher position, and the cleaning rod 808 that contacts the mold steel plate 9 later at this time first contacts the mold steel plate 9. The cleaning rod 808 that first contacts the mold steel plate 9 below will rotate downward, and when the cleaning rod 808 rotates, it will contact the lower scraper rod 8054 to clean the cleaning rod 808, so that the cleaning rod 808 can be reused, and the arc filter plate 8053 will collect impurities scraped from the upper and lower surfaces of the mold steel plate 9, and the arc filter plate 8053 is connected to the fixed arc plate 8051 through the magnetic block 8052, so it can be quickly replaced, which is convenient for replacing the arc filter plate 8053 that collects impurities;

[0041] Before the cleaned mold steel plate 9 enters the limiting mechanism 6, the servo motor 401 is started. When the servo motor 401 is started, it drives the output screw 402 to rotate. When the output screw 402 rotates, it drives the driven screw 602 to rotate through the synchronous belt 601. When the driven screw 602 rotates, the two moving plates 603 move oppositely or toward each other. Therefore, the limiting plate 604 will also move oppositely or toward each other to adapt to mold steel plates 9 of different sizes and limit them. When the limiting mechanism 6 is limiting, that is, when the output screw 402 rotates, the output screw 402 will cause the two moving blocks 403 to move oppositely or oppositely. When the moving block 403 moves, the driven block 404 and the moving block 403 are driven to move equidistantly through the scissor plate 407. At this time, the detection camera 5 above the moving block 403 and the driven block 404 will also move equidistantly. Therefore, the detection camera 5 is adapted to mold steel plates 9 of different sizes to ensure accurate detection of mold steel plates 9 of different sizes.

[0042] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold steel surface defect detection device, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is fixedly connected to a placement platform (2), the side of the placement platform (2) is fixedly connected to a support plate (3), the top and bottom of the side of the support plate (3) are fixedly connected to a distance adjustment mechanism (4), the bottom of the top distance adjustment mechanism (4) and the top of the bottom distance adjustment mechanism (4) are fixedly connected to a detection camera (5), the side of the distance adjustment mechanism (4) is movably connected to a limiting mechanism (6), the side of the fixed base (1) is fixedly connected to a shielding box (7), and the interior of the shielding box (7) is movably connected to a cleaning mechanism (8); The distance adjustment mechanism (4) comprises a servo motor (401) capable of providing power, an output screw (402) being fixedly connected to a side surface of the servo motor (401), both ends of the side surface of the output screw (402) being threadedly connected to moving blocks (403), the bottom ends of the two moving blocks (403) being provided with sliding grooves adapted to the sliding blocks (406), the bottom ends of the sliding blocks (406) being movably connected to a shearing plate (407), and the moving blocks (403) being movably connected to the driven blocks (404) via the shearing plate (407); The bottom end of the driven block (404) is provided with a sliding groove adapted to the sliding block (406); the bottom ends of the moving block (403) and the driven block (404) are both movable by the sliding block (406); the bottom end of the sliding block (406) is movably connected via a shear plate (407); and the thread grooves on both sides of the output screw rod (402) are mirror-symmetrical about the central plane of the output screw rod (402); A through hole that does not contact the output screw rod (402) is formed on the inner side of the driven block (404), a limiting hole that matches the limiting rod (405) is formed on the side of the driven block (404) away from the output screw rod (402), both sides of the limiting rod (405) are fixedly connected to the side of the support plate (3), and the distance adjustment mechanism (4) at the top end moves synchronously with the distance adjustment mechanism (4) at the bottom end.

2. The mold steel surface defect detection device according to claim 1, characterized in that: The limiting mechanism (6) comprises a synchronous belt (601) connected to an output screw rod (402); a driven screw rod (602) is fixedly connected to the side of the synchronous belt (601) away from the servo motor (401); thread grooves are provided at both ends of the side of the driven screw rod (602); movable plates (603) are threadedly connected to the side of the thread groove of the driven screw rod (602); and the top ends of the two movable plates (603) are fixedly connected to the limiting plates (604).

3. The mold steel surface defect detection device according to claim 2 is characterized in that: The two limit plates (604) have inclined surfaces on their inner sides away from the detection camera (5); the bottom ends of the limit plates (604) are in contact with the top end of the placement platform (2); the thread grooves on the sides of the driven screw rods (602) are mirror-symmetrical about the center plane of the driven screw rods (602); and the inner lengths of the two driven screw rods (602) are the same as the outer lengths of the two moving blocks (403).

4. The mold steel surface defect detection device according to claim 1, characterized in that: The cleaning mechanism (8) comprises an adjustable rotating wheel (801), the side of the rotating wheel (801) is fixedly connected to an output gear (802), the bottom end of the output gear (802) is meshed with a driven gear (803), the side of the output gear (802) is movably connected to an upper arc plate (804), the side of the driven gear (803) is fixedly connected to a rotating rod (806), the side of the rotating rod (806) is fixedly connected to a cross connecting rod (807), and the side of the cross connecting rod (807) is fixedly connected to a cleaning rod (808).

5. The mold steel surface defect detection device according to claim 4, characterized in that: A mold steel plate (9) is placed above the placement platform (2), and cleaning nozzles (10) are provided at the top and bottom of the mold steel plate (9). The upper cleaning nozzle (10) is fixedly connected to the inner side of the shielding box (7), and the lower cleaning nozzle (10) is fixedly connected to the inner side of the placement platform (2). An upper arc plate (804) is provided at the top of the mold steel plate (9), and a collecting assembly (805) is provided at the bottom of the mold steel plate (9).

6. The mold steel surface defect detection device according to claim 5, characterized in that: The cleaning rod (808) is located in the collecting assembly (805), the top and bottom ends of the mold steel plate (9) are both movably connected to the cleaning rod (808), and the top and bottom ends of the mold steel plate (9) are both movably connected to two cleaning rods (808), and the structure inside the upper arc plate (804) is the same as that inside the collecting assembly (805) and is symmetrical about the mold steel plate (9).

7. The mold steel surface defect detection device according to claim 6, characterized in that: The collecting assembly (805) comprises a fixed arc plate (8051) fixedly connected to the placement platform (2); a mounting groove adapted to the magnetic block (8052) is provided at the bottom end of the side surface of the fixed arc plate (8051); a curved filter plate (8053) is fixedly connected to the side surface of the magnetic block (8052) away from the fixed arc plate (8051); a filtering hole is provided inside the curved filter plate (8053); and a lower scraper rod (8054) is fixedly connected to the top of the curved filter plate (8053) near the side surface of the fixed arc plate (8051).

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