A milling cutter scratch detection and repair device and method of use thereof

Abstract

The application discloses a milling cutter scratch detection and repair device, which comprises a workbench and a cross plate and relates to the technical field of milling cutter scratch detection. The milling cutter scratch detection and repair device and the use method thereof can simultaneously detect and repair four milling cutters by arranging the cross plate on the workbench. In the process of moving the cross plate, the meshing of the gear and the gear teeth can make the cross plate rotate, the working positions of the four milling cutters on the cross plate are switched, the detection and repair of the four milling cutters are indirectly operated, and the overall operation efficiency is improved. When the cross plate rotates, the repair paste in the storage tank can be extruded, and then the repair paste is evenly applied on the surface of the milling cutter automatically, so that manual application of the repair paste is not needed, the operation burden of the workers is reduced, and the four milling cutters on the cross plate can be individually rotated, so that the camera can comprehensively detect the milling cutters.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of milling cutter scratch detection, in particular to a milling cutter scratch detection and repair device and a use method thereof. BACKGROUND

[0002] A milling cutter is a rotary cutter with one or more cutter teeth for milling machining, and each cutter tooth intermittently cuts off the excess of a workpiece in turn during work. The milling cutter is mainly used for machining planes, steps, grooves, shaped surfaces and cutting off workpieces on a milling machine. The milling cutter has various types, such as a cylindrical milling cutter, a face milling cutter, a three-flank milling cutter and a saw blade milling cutter. The saw blade milling cutter is used for machining deep grooves and cutting off workpieces, and has more cutter teeth on the circumference.

[0003] An invention with the authorized announcement number CN117554377B discloses a milling cutter scratch detection and repair device and a use method thereof. The milling cutter scratch detection and repair device and the use method thereof are characterized by the setting of a conveying part, a detection part, a repair part and a cleaning part. That is, a first motor drives a lead screw to rotate. When a bearing plate drives a saw blade milling cutter to move below an industrial camera, the industrial camera can take an image of the surface of the saw blade milling cutter, and the image is analyzed by a computer, so as to facilitate the detection of the surface scratches of the saw blade milling cutter. When the saw blade milling cutter moves below a cleaning block, the cleaning block descends and rotates, so as to clean the surface of the saw blade milling cutter. When the saw blade milling cutter is cleaned and moves below a scraper, the scraper descends and rotates, so as to evenly apply scratch repair paste to the surface of the saw blade milling cutter, and the surface scratches of the saw blade milling cutter are repaired. The design facilitates the detection of the surface scratches of the saw blade milling cutter and the repair of the detected scratches, and ensures the work efficiency.

[0004] Although the milling cutter scratch detection and repair device facilitates the detection of the surface scratches of the saw blade milling cutter and the repair of the detected scratches, and ensures the work efficiency, the whole device can only detect and repair a single milling cutter each time during operation, the operation efficiency is low, and the workers need to manually apply the repair paste during the detection and repair of the milling cutter, which increases the work burden of the workers. SUMMARY

[0005] In view of the deficiencies of the prior art, the application provides a milling cutter scratch detection and repair device and a use method thereof, which solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a milling cutter scratch detection and repair device, comprising a worktable and a cross plate, a first motor fixedly connected to one side of the top of the worktable, and a lead screw fixedly connected to the output end of the first motor, a slider threadedly connected to the surface of the lead screw, and a vertical rod rotatably connected to the top of the slider, the top of the vertical rod being fixedly connected to the bottom of the cross plate, and horizontal plates fixedly connected to both sides of the slider, a first sliding plate and a second sliding plate respectively fixedly connected to one side of the two horizontal plates, a gear fixedly connected to the surface of the vertical rod, and an outer frame fixedly connected to the top of the worktable via a support frame, with teeth meshing with the gears fixedly connected to one side of the inner wall of the outer frame;

[0007] A second motor is fixedly connected to the bottom of the cross plate via a protective box, and a placement platform is fixedly connected to the output end of the second motor. Diagonal rods are fixedly connected to all four sides of the cross plate, and a circular plate is fixedly connected to one end of each diagonal rod. A fixed plate is fixedly connected to the top of the first sliding plate, and a U-shaped plate is slidably connected to the surface of the fixed plate. A connecting plate is fixedly connected to one side of the U-shaped plate, and a movable plate is rotatably connected inside the connecting plate. A storage tank is fixedly connected to the top of the connecting plate, and a vertical pipe is connected to the bottom of the storage tank. A cotton board is fixedly connected to the bottom of the vertical pipe, and a horizontal pipe connected to the vertical pipe is provided inside the cotton board. A discharge pipe is connected to the bottom of the surface of the horizontal pipe. A push plate is fixedly connected to one side of the movable plate, and a spring is fixedly connected between one side of the movable plate and one side of the fixed plate. A bracket is fixedly connected to the top of the second sliding plate, and a camera is fixedly connected to the bottom of the bracket.

[0008] Preferably, the top of the workbench is fixedly connected to slide rails at both the front and rear, and the interiors of the first and second slide plates are slidably connected to the top of the slide rails.

[0009] Preferably, a first vertical plate is fixedly connected to one side of the top of the workbench, and one end of the lead screw is rotatably connected to one side of the first vertical plate. Second vertical plates are fixedly connected to both sides of the top of the workbench and to the front and rear of the lead screw. A sliding rod is fixedly connected between the opposite sides of the two second vertical plates, and the surface of the sliding rod is slidably connected to the inside of the slider.

[0010] Preferably, an L-shaped plate is fixedly connected to the top of the cross plate, and an electric telescopic rod is fixedly connected to the top of the L-shaped plate. A positioning plate is fixedly connected to the output end of the electric telescopic rod, and a ball is rotatably connected to the bottom of the positioning plate. The number of L-shaped plates is set to four.

[0011] Preferably, one side of the connecting plate is fixedly connected with a supporting plate, one side of the supporting plate is in contact with one side of the storage tank, the top of the fixed plate is fixedly connected with a hydraulic oil cylinder, and the output end of the hydraulic oil cylinder is fixedly connected with the top of the surface of the connecting rod.

[0012] Preferably, the top of the storage tank is communicated with a feeding pipe, and the top of the feeding pipe is provided with a sealing cover.

[0013] Preferably, the inside of the connecting plate is provided with a through slot matched with the movable plate, and the number of springs is two.

[0014] The application further discloses a use method of the milling cutter scratch detection and repair device.

[0015] S1, the milling cutter is placed on the placing table, then the positioning plate is lowered through the electric telescopic rod, so that the positioning plate is tightly attached to the milling cutter, and the milling cutter is positioned;

[0016] S2, then the first motor is started, the first motor drives the screw rod to rotate, the screw rod drives the sliding block to move, so that the cross plate is moved, in the moving process of the sliding block, the gear is engaged with the gear teeth, so that the vertical rod is rotated, the position of the milling cutter on the cross plate is changed, and the camera at the bottom of the support shoots one of the milling cutters, and the image is transmitted to the computer and analyzed.

[0017] S3, when the camera shoots, the first motor stops working, when the shooting is completed, the first motor continues to work, with the rotation of the cross plate, the camera shoots another milling cutter, through the analysis of the background, when the milling cutter needing repair moves to the bottom of the cotton plate, the hydraulic oil cylinder is started, the hydraulic oil cylinder drives the back-shaped plate to move downwards, so that the cotton plate is tightly attached to the surface of the milling cutter.

[0018] S4, when the cross plate rotates, the disc on the inclined rod will intermittently push the movable plate, the movable plate rotates in the inside of the connecting plate, when the disc moves away, the movable plate returns to the original position under the elastic force of the spring, the rotation of the movable plate makes the push plate extrude the storage tank, so that the repair paste in the inside of the storage tank enters the inside of the cotton plate through the vertical pipe, the horizontal pipe and the discharge pipe, the cotton plate is tightly attached to the milling cutter, then the second motor is started, the second motor drives the placing table to rotate, and the cotton plate uniformly coats the rotating milling cutter.

[0019] S5, in the moving process of the cross plate, four milling cutters can be detected and repaired.

[0020] The application provides a milling cutter scratch detection and repair device and a use method thereof.

[0021] The milling cutter scratch detection and repair device and the use method thereof, by setting the cross plate on the workbench, four milling cutters can be detected and repaired at the same time, in the process of driving the cross plate to move, the meshing action of the gear and the tooth can make the cross plate rotate, the switching of the working position of the four milling cutters on the cross plate is realized, the detection and repair of the four milling cutters are indirectly operated, the overall operation efficiency is improved, when the cross plate rotates, the repair paste in the storage tank can be extruded, and then the repair paste is evenly coated on the surface of the milling cutter automatically, manual coating of the repair paste is not needed, the operation burden of the workers is reduced, the four milling cutters on the cross plate can be rotated individually, so that the camera can comprehensively detect the milling cutter, and the cotton plate can also uniformly coat the repair paste on the milling cutter, the device realizes the whole automatic process from detection to repair and then cleaning, manual intervention is reduced, the efficiency is improved, the scratch is efficiently repaired by accurately coating the scratch repair paste, the service life of the milling cutter is prolonged, the overall design is compact and reasonable, the operation is simple, and the device is easy to maintain and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the structure of the application;

[0023] Figure 2 It is a front view of the structure of the application;

[0024] Figure 3 It is a bottom view of the positioning plate structure of the application;

[0025] Figure 4 It is a top view of the cross plate structure of the application;

[0026] Figure 5 It is a sectional view of the cotton plate structure of the application;

[0027] Figure 6 It is a top view of the return plate structure of the application;

[0028] Figure 7 It is a perspective view of the application Figure 2 It is a partial enlarged view of A in the application.

[0029] As shown in the figure, 1 is a workbench, 2 is a cross plate, 3 is a first motor, 4 is a lead screw, 5 is a sliding block, 6 is a vertical rod, 7 is a horizontal plate, 8 is a first sliding plate, 9 is a second sliding plate, 10 is a gear, 11 is a support frame, 12 is an outer frame, 13 is a tooth, 14 is a protection box, 15 is a second motor, 16 is a placing table, 17 is an inclined rod, 18 is a round plate, 19 is a fixed plate, 20 is a back-shaped plate, 21 is a connecting plate, 22 is a storage tank, 23 is a vertical pipe, 24 is a cotton board, 25 is a horizontal pipe, 26 is a discharge pipe, 27 is a movable plate, 28 is a push plate, 29 is a spring, 30 is a support, 31 is a camera, 32 is a sliding rail, 33 is a first vertical plate, 34 is a second vertical plate, 35 is a sliding rod, 36 is an L-shaped plate, 37 is an electric telescopic rod, 38 is a positioning plate, 39 is a ball, 40 is a supporting plate, 41 is a hydraulic oil cylinder, 42 is a connecting rod, 43 is a feeding pipe, and 44 is a through groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-7 The present application provides a technical solution: a milling cutter scratch detection and repair device, which comprises a workbench 1 and a cross plate 2. One side of the top of the workbench 1 is fixedly connected with a first motor 3, and the output end of the first motor 3 is fixedly connected with a lead screw 4. The surface of the lead screw 4 is threadedly connected with a sliding block 5, and the top of the sliding block 5 is rotatably connected with a vertical rod 6. The top end of the vertical rod 6 is fixedly connected with the bottom of the cross plate 2. Both sides of the sliding block 5 are fixedly connected with horizontal plates 7. One side of each of the two horizontal plates 7 is fixedly connected with a first sliding plate 8 and a second sliding plate 9, respectively. The surface of the vertical rod 6 is fixedly connected with a gear 10. The top of the workbench 1 is fixedly connected with an outer frame 12 through a support frame 11. One side of the inner wall of the outer frame 12 is fixedly connected with tooth gears 13 that mesh with the gear 10.

[0032] Specifically, the first motor 3 is a three-phase asynchronous motor, which can be reversed to drive the cross plate 2 to move left and right.

[0033] The bottom of the cross plate 2 is fixedly connected with the second motor 15 through the protection box 14, and the output end of the second motor 15 is fixedly connected with the placement table 16. The four sides of the cross plate 2 are fixedly connected with the inclined rods 17, one end of the inclined rod 17 is fixedly connected with the circular plate 18, the top of the first sliding plate 8 is fixedly connected with the fixed plate 19, and the surface of the fixed plate 19 is slidably connected with the back-shaped plate 20. One side of the back-shaped plate 20 is fixedly connected with the connecting plate 21, the inside of the connecting plate 21 is rotatably connected with the movable plate 27, the top of the connecting plate 21 is fixedly connected with the storage tank 22, the bottom of the storage tank 22 is communicated with the vertical pipe 23, the bottom end of the vertical pipe 23 is fixedly connected with the cotton plate 24, the inside of the cotton plate 24 is provided with the horizontal pipe 25 communicated with the vertical pipe 23, the surface of the horizontal pipe 25 is communicated with the discharge pipe 26, one side of the movable plate 27 is fixedly connected with the push plate 28, the spring 29 is fixedly connected between one side of the movable plate 27 and one side of the fixed plate 19, and the top of the second sliding plate 9 is fixedly connected with the bracket 30. The bottom of the bracket 30 is fixedly connected with the camera 31.

[0034] Specifically, as shown in the figure, Figure 4 The inclined rod 17 is arranged at the corner of the cross plate 2, and the circular plate 18 on the inclined rod 17 can push the movable plate 27.

[0035] Specifically, the storage tank 22 is made of soft silica gel material, which is convenient for the push plate 28 to extrude.

[0036] Preferably, the top of the workbench 1 is fixedly connected with the slide rails 32 in front and back, and the inside of the first sliding plate 8 and the second sliding plate 9 is slidably connected with the top of the slide rails 32.

[0037] Specifically, the slide rails 32 have a certain guiding effect on the first sliding plate 8 and the second sliding plate 9.

[0038] Preferably, one side of the top of the workbench 1 is fixedly connected with the first vertical plate 33, one end of the lead screw 4 is rotatably connected with one side of the first vertical plate 33, both sides of the top of the workbench 1 and located in front of and behind the lead screw 4 are fixedly connected with the second vertical plate 34, the slide rods 35 are fixedly connected between the opposite sides of the two second vertical plates 34, and the surface of the slide rods 35 is slidably connected with the inside of the sliding block 5.

[0039] Specifically, the slide rods 35 have a certain limiting effect on the sliding block 5.

[0040] Preferably, the top of the cross plate 2 is fixedly connected with the L-shaped plate 36, the top of the L-shaped plate 36 is fixedly connected with the electric telescopic rod 37, the output end of the electric telescopic rod 37 is fixedly connected with the positioning plate 38, the bottom of the positioning plate 38 is rotatably connected with the sphere 39, and the number of the L-shaped plates 36 is four.

[0041] Specifically, the arrangement of the spherical body 39 limits the milling cutter and does not limit the rotation of the milling cutter.

[0042] Preferably, one side of the connecting plate 21 is fixedly connected with a supporting plate 40, one side of the supporting plate 40 is in contact with one side of the storage tank 22, the top of the fixed plate 19 is fixedly connected with a hydraulic oil cylinder 41, the connecting rod 42 is fixedly connected between the inner walls of the back-shaped plate 20, and the output end of the hydraulic oil cylinder 41 is fixedly connected with the top of the surface of the connecting rod 42.

[0043] Preferably, the top of the storage tank 22 is communicated with a feeding pipe 43, and the top of the feeding pipe 43 is provided with a sealing cover.

[0044] Preferably, the inside of the connecting plate 21 is provided with a through slot 44 matched with the movable plate 27, and the number of the springs 29 is two.

[0045] The application also discloses a use method of the milling cutter scratch detection and repair device, and specifically includes the following steps:

[0046] S1, the milling cutter is placed on the placing table 16, then the positioning plate 38 is lowered through the electric telescopic rod 37, so that the positioning plate 38 is tightly attached to the milling cutter, and the milling cutter is limited;

[0047] S2, then the first motor 3 is started, the first motor 3 drives the lead screw 4 to rotate, the lead screw 4 drives the sliding block 5 to move, so as to drive the cross plate 2 to move, in the moving process of the sliding block 5, the gear 10 is engaged with the gear teeth 13, so as to drive the vertical rod 6 to rotate, the position of the milling cutter on the cross plate 2 is changed, the camera 31 at the bottom of the support 30 photographs one of the milling cutters, and simultaneously transmits an image to a computer and analyzes a scratch;

[0048] S3, when the camera 31 photographs, the first motor 3 stops working, when the photographing is completed, the first motor 3 continues to work, along with the rotation of the cross plate 2, the camera 31 photographs another milling cutter, through the analysis of the background, when the milling cutter needing to be repaired is moved to the bottom of the cotton plate 24, the hydraulic oil cylinder 41 is started, the hydraulic oil cylinder 41 drives the back-shaped plate 20 to move downwards, so that the cotton plate 24 is tightly attached to the surface of the milling cutter;

[0049] S4, when the cross plate 2 rotates, the round plate 18 on the inclined rod 17 will intermittently push the movable plate 27, and the movable plate 27 rotates inside the connecting plate 21; when the round plate 18 moves away, the movable plate 27 returns to the original position under the elastic force of the spring 29; the rotation of the movable plate 27 makes the push plate 28 extrude the storage tank 22, so that the repair paste in the storage tank 22 enters the inside of the cotton plate 24 through the vertical pipe 23, the horizontal pipe 25 and the discharge pipe 26, and the cotton plate 24 is close to the milling cutter, then the second motor 15 is started, and the second motor 15 drives the placement table 16 to rotate, and the cotton plate 24 uniformly coats the rotating milling cutter;

[0050] S5, during the movement of the cross plate 2, the four milling cutters can be detected and repaired.

[0051] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0052] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0053] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for milling cutter scratch detection and repair, comprising a worktable (1) and a cross plate (2), characterized in that: The top of the workbench (1) is fixedly connected with a first motor (3) on one side, and the output end of the first motor (3) is fixedly connected with a lead screw (4), the surface of the lead screw (4) is threadedly connected with a sliding block (5), and the top of the sliding block (5) is rotatably connected with a vertical rod (6), the top end of the vertical rod (6) is fixedly connected with the bottom of the cross plate (2), and the two sides of the sliding block (5) are fixedly connected with horizontal plates (7), one side of each of the two horizontal plates (7) is fixedly connected with a first sliding plate (8) and a second sliding plate (9), respectively, the surface of the vertical rod (6) is fixedly connected with a gear (10), and the top of the workbench (1) is fixedly connected with an outer frame (12) through a support frame (11), one side of the inner wall of the outer frame (12) is fixedly connected with gear teeth (13) engaged with the gear (10). The bottom of the cross plate (2) is fixedly connected with a second motor (15) through a protection box (14), and the output end of the second motor (15) is fixedly connected with a placing table (16), the periphery of the cross plate (2) is fixedly connected with inclined rods (17), one end of the inclined rod (17) is fixedly connected with a circular plate (18), the top of the first sliding plate (8) is fixedly connected with a fixed plate (19), and the surface of the fixed plate (19) is slidably connected with a back-shaped plate (20), one side of the back-shaped plate (20) is fixedly connected with a connecting plate (21), and the inner rotatably connected with a movable plate (27), the top of the connecting plate (21) is fixedly connected with a storage tank (22), and the bottom of the storage tank (22) is connected with a vertical pipe (23), the bottom end of the vertical pipe (23) is fixedly connected with a cotton plate (24), and the inner of the cotton plate (24) is provided with a horizontal pipe (25) connected with the vertical pipe (23), the surface of the horizontal pipe (25) is connected with a discharge pipe (26) at the bottom, and one side of the movable plate (27) is fixedly connected with a push plate (28), one side of the movable plate (27) and one side of the fixed plate (19) are fixedly connected with a spring (29), the top of the second sliding plate (9) is fixedly connected with a support (30), and the bottom of the support (30) is fixedly connected with a camera (31), the storage tank (22) is made of soft silica gel material.

2. The device of claim 1, wherein: The top of the workbench (1) is fixedly connected with a sliding rail (32) on the front and back, and the inner of the first sliding plate (8) and the second sliding plate (9) is slidably connected with the top of the sliding rail (32).

3. The device of claim 1, wherein: The top of the workbench (1) is fixedly connected with a first vertical plate (33) on one side, and one end of the lead screw (4) is rotatably connected with one side of the first vertical plate (33), the top of the workbench (1) is fixedly connected with a second vertical plate (34) on the two sides and in front of and behind the lead screw (4), the two second vertical plates (34) are fixedly connected with a sliding rod (35) between the opposite sides, and the surface of the sliding rod (35) is slidably connected with the inner of the sliding block (5).

4. The device of claim 1, wherein: The top of the cross plate (2) is fixedly connected with an L-shaped plate (36), and the top of the L-shaped plate (36) is fixedly connected with an electric telescopic rod (37), the output end of the electric telescopic rod (37) is fixedly connected with a positioning plate (38), the bottom of the positioning plate (38) is rotatably connected with a ball (39), and the number of the L-shaped plates (36) is four.

5. The device of claim 1, wherein: One side of the connecting plate (21) is fixedly connected with a supporting plate (40), one side of the supporting plate (40) is in contact with one side of the storage tank (22), the top of the fixed plate (19) is fixedly connected with a hydraulic oil cylinder (41), the connecting rod (42) is fixedly connected between the inner walls of the back-shaped plate (20), and the output end of the hydraulic oil cylinder (41) is fixedly connected with the top of the surface of the connecting rod (42).

6. The device of claim 1, wherein: The top of the storage tank (22) is communicated with a feeding pipe (43), and the top of the feeding pipe (43) is provided with a sealing cover.

7. The device of claim 1, wherein: The inside of the connecting plate (21) is provided with a through groove (44) matched with the movable plate (27), and the number of the springs (29) is two.

8. The device of any one of claims 1-7, wherein: The use method comprises the following steps: S1, place the milling cutter on the placing table (16), then lower the positioning plate (38) through the electric telescopic rod (37), so that the positioning plate (38) tightly abuts against the milling cutter, and the milling cutter is positioned; S2, then start the first motor (3), the first motor (3) drives the lead screw (4) to rotate, the lead screw (4) drives the sliding block (5) to move, so as to drive the cross plate (2) to move, in the moving process of the sliding block (5), the gear (10) is engaged with the teeth (13), so as to drive the vertical rod (6) to rotate, the position of the milling cutter on the cross plate (2) is changed, the camera (31) at the bottom of the support (30) photographs one of the milling cutters, and the image is transmitted to the computer and analyzed; S3, when the camera (31) photographs, the first motor (3) stops working, when the photographing is finished, the first motor (3) continues to work, with the rotation of the cross plate (2), the camera (31) photographs another milling cutter, through the analysis of the background, when the milling cutter needing to be repaired moves to the bottom of the cotton plate (24), the hydraulic oil cylinder (41) is started, the hydraulic oil cylinder (41) drives the back-shaped plate (20) to move downwards, so that the cotton plate (24) tightly abuts against the surface of the milling cutter. S4, when the cross plate (2) rotates, the round plate (18) on the inclined rod (17) will intermittently push the movable plate (27), and the movable plate (27) rotates inside the connecting plate (21); when the round plate (18) moves away, the movable plate (27) returns to the original position under the elastic force of the spring (29); the rotation of the movable plate (27) causes the push plate (28) to press the storage tank (22), so that the repair paste in the storage tank (22) enters the inside of the cotton plate (24) through the vertical pipe (23), the horizontal pipe (25) and the discharge pipe (26), and the cotton plate (24) is close to the milling cutter, and then the second motor (15) is started, the second motor (15) drives the placement table (16) to rotate, and the cotton plate (24) uniformly coats the rotating milling cutter; S5, during the movement of the cross plate (2), the four milling cutters can be detected and repaired.

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