Plate shearing machine capable of automatically detecting and flattening

Through the design of automatic detection of flat shearing machine, magnetic belts and belts are used to achieve automated shearing and panoramic scanning, combining aqueous solution and buoyancy to detect burrs, and removing burrs through grinding components of magnetic materials, solving the problem of the inability to automatically detect and detect burrs in the prior art. The problem of removing burrs has improved the degree of automation of inspection and processing and the comprehensiveness of data.

CN119188321AInactive Publication Date: 2024-12-27INNER MONGOLIA GUOXIN TONGTAI MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202411662495.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2024-12-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing flattening machines and shearing machines cannot automatically detect the flattening effect and burrs of the board during the flattening and shearing process, and the scanning data is incomplete, which affects laser scanning and cannot remove burrs.

Method used

An automatic detection and flat shearing machine is designed, using magnetic belts and belts for automatic shearing and scanning. The sheets are placed consistently through telescopic tables and sports plates, and the burrs are detected using aqueous solution and buoyancy, and removed by the polishing components of magnetic materials. glitch.

Benefits of technology

It realizes automated shearing without manual use and comprehensive scanning data acquisition, ensuring consistent placement of the board, detecting and removing burrs, and improving the automation and comprehensiveness of flattening effect detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The plate shearing machine comprises a machine shell, a moving assembly comprises a telescopic table connected with the rear wall of the inner side of the machine shell, the front side of the telescopic table is connected with a moving plate, the front side of the moving plate is connected with a platform block, and the inner side of the platform block is connected with a stress rod in a penetrating mode; three groups of stress rods are uniformly and symmetrically arranged on the platform block, the stress rods are axially sleeved with first springs, the front side of the moving plate is connected with a cylinder, and the rear end part of the moving plate penetrates through and extends into the cylinder and is in sliding connection with the inner side wall of the cylinder. According to the automatic detection flattening plate shearing machine, the water solution is contained in the box body and the cylinder, when burrs exist, the movement distance of the stress rod is longer than that of the stress rod without the burrs, the water level in the box body rises to be high, then the buoyancy rod is driven to move upwards under the action of buoyancy, and a first contact is in contact with a second contact; the structure can achieve the effect of detecting burrs.
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Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to an automatic detection opening and leveling shearing machine. Background Art

[0002] Some thinner steel plates are usually stored in a coiled form. When processing them, they need to be flattened by a flattening machine and then processed into plates of specific sizes by a shearing machine.

[0003] At present, the main problem of most flattening machines and shearing machines on the market in the process of flattening and shearing plates is that the flattening effect of the flattening machine cannot be detected. Alternatively, a laser scanning device can be provided, but the traditional laser scanning device drives the detection object horizontally through a conveyor belt to perform laser scanning, so that the scanning data is not comprehensive enough, and the plates need to be manually placed on the conveyor device, which makes it not automated enough. In the process of placing the plates on the conveyor device, the placement of the plates is inconsistent, which affects the laser scanning. Alternatively, a device can be provided to push the plates for regulated placement, but burrs may exist on the sheared surface of the plates, and the device cannot detect the burrs, and cannot remove the burrs. The above situations will lead to the inability to detect the flattening effect of the flattening machine, the scanning data is not comprehensive and automated enough, the placement of the plates is inconsistent, which affects the laser scanning, and the burrs cannot be detected or removed. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic detection shearing machine to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic detection shearing machine, comprising a casing, a shearing component is fixedly installed on the left side of the casing, a scanning component is fixedly connected to the front and rear inner walls above the casing, a transport component is movably installed on the lower side of the inner part of the casing, a motion component is fixedly connected to the upper side of the transport component and to the inner wall of the casing, the motion component is symmetrically arranged front and back about the inner side of the casing, a grinding component is rotatably connected to the front side of the motion component, and a trigger component is movably installed on the inner side of the motion component; The moving component includes a telescopic table fixedly connected to the inner rear wall of the casing, and a moving plate is fixedly connected to the front side of the telescopic table. When the moving plate pushes the plate, the reaction force of the shear surface of the plate pushes the force-bearing rod, so that the force-bearing rod compresses the first spring. The front side of the moving plate is fixedly connected to a platform block, and the inner side of the platform block is penetrated by the force-bearing rod. Three groups of the force-bearing rods are evenly and symmetrically arranged on the platform block. The axial sleeve of the force-bearing rod is connected with the first spring. The front side of the moving plate is fixedly connected to a cylindrical tube. Since the box body and the cylindrical tube contain aqueous solution, when there are burrs, the movement distance of the force-bearing rod is longer than when there are no burrs, so that the water level in the box body rises higher, and then the buoyancy rod is driven upward by the action of buoyancy, so that the first contact contacts the second contact. Since the first contact, the second contact and the rotating wheel are electrically connected, when the first contact contacts the second contact, the rotating wheel is triggered to start. This structure can achieve the effect of detecting burrs. The rear end of the moving board penetrates and extends into the interior of the cylindrical tube and is slidably connected to the inner wall of the cylindrical tube. The rear end of the cylindrical tube is fixedly connected to the box body.

[0006] Furthermore, the transport assembly includes a drive shaft rotatably connected to the front and rear inner walls of the housing, the drive shaft is symmetrically arranged about the front and rear inner walls of the housing, the outer side of the drive shaft is rotatably connected to a belt, and the drive shaft drives the belt on its outer side to rotate synchronously. After shearing, since the magnetic belt is made of magnetic material, the sheared sheet is adsorbed on the outer surface of the magnetic belt. This structure can achieve the effect of no need for manual labor and high degree of automation. The front side of the belt is fixedly connected to a magnetic belt.

[0007] Furthermore, the inner side of the magnetic belt is fixedly connected to a track belt, and the track belt is rotatably connected to a guide wheel through a convex groove. Since the magnetic belt is fixedly connected to the belt, the magnetic belt rotates synchronously. Since the inner side of the magnetic belt is fixedly connected to the track belt, the magnetic belt is transported up and down slopes through the guide wheel and the track belt while rotating, so that the scanning component can scan the plate at three angles when performing laser scanning on the plate. This structure can detect the flattening effect of the flattening machine, scan at three angles, and scan the data comprehensively. The center position of the guide wheel is rotatably connected to a fixed rod, and the fixed rod is fixedly connected to the front and rear inner walls of the casing.

[0008] While the plates are being transported and scanned, the telescopic table is started to drive the moving plate to move back and forth, so that after the plates are adsorbed by the magnetic force of the magnetic belt, the moving plate can push the plates to be placed in a consistent position. This structure ensures that the plates are placed in a consistent state and does not affect the effect of laser scanning.

[0009] Furthermore, the grinding assembly includes a rotating wheel rotatably connected to the fixed column on the front side of the moving plate, and an annular belt is rotatably connected to the axial outer side of the rotating wheel. Since the grinding block is made of magnetic material, the coil generates a magnetic force that repels the grinding block, and then pushes the grinding block to rotate around the limiting rod, so that the grinding head on the grinding block contacts the shear surface of the plate, and then the burrs of the plate are ground under the action of the annular belt. This structure achieves the effect of removing burrs. A number of evenly distributed limiting rods are fixedly connected to the outer side of the annular belt.

[0010] Furthermore, the other end of the limiting rod is rotatably connected to the grinding block, and a coil is provided on the rear side of the grinding block and on the inner side of the moving plate. When the rotating wheel rotates, the rotating wheel drives the outer annular belt to rotate synchronously. When the rotating wheel is triggered and started, current is passed through the inside of the coil, and a groove corresponding to the coil is opened on the moving plate.

[0011] Furthermore, the trigger assembly includes a fixed block fixedly connected to the left and right inner walls of the box body, the center position of the fixed block is connected to the buoyancy rod, and the upper side of the buoyancy rod is fixedly connected to the first contact.

[0012] Furthermore, a second spring is sleeved on the axial outer side of the buoyancy rod and between the fixed block and the first contact, and the buoyancy rod is driven to move upward by the action of buoyancy, so that the first contact contacts the second contact. Since the first contact, the second contact and the rotating wheel are electrically connected, when the first contact contacts the second contact, the rotating wheel is triggered to start, and this structure can achieve the effect of detecting burrs. A second contact is arranged on the upper side of the first contact, and the second contact is fixedly connected to the bottom side of the upper cover of the box body.

[0013] Furthermore, the grinding block is made of magnetic material, and a circular through hole corresponding to the cylindrical tube is provided on one side of the box body connected to the cylindrical tube.

[0014] Compared with the prior art, the present invention provides an automatic detection shearing machine, which has the following beneficial effects: 1. The automatic detection shearing machine can automatically and intermittently shear the plate flattened by the shearing machine through the shearing parts, and at the same time start the external driving device to drive the driving shaft to rotate, so that the driving shaft drives the belt on its outside to rotate synchronously. After shearing, since the magnetic belt is made of magnetic material, the sheared plate is adsorbed on the outer surface of the magnetic belt. This structure can achieve the effect of no need for manpower and high degree of automation.

[0015] 2. The automatic detection of the flattening shearing machine is fixedly connected with the belt by a magnetic belt, so that the magnetic belt rotates synchronously. Since the inner side of the magnetic belt is fixedly connected with a track belt, the magnetic belt is transported up and down slopes through the guide wheel and the track belt while rotating. When the scanning component performs laser scanning on the plate, it can scan the plate at three angles. This structure can detect the flattening effect of the flattening machine, scan at three angles and obtain comprehensive scanning data.

[0016] 3. The automatic inspection Kaiping shearing machine starts the telescopic table to drive the moving plate to move back and forth while transporting and scanning the plate, so that after the plate is adsorbed by the magnetic force of the magnetic belt, the moving plate can push the plate to be placed in a consistent position. This structure achieves the consistency of the placement of the plate and does not affect the effect of laser scanning.

[0017] 4. The automatic detection Kaiping shearing machine pushes the plate through the moving plate. The reaction force of the shearing surface of the plate pushes the force rod, so that the force rod compresses the first spring. Since the box and the cylindrical tube are filled with an aqueous solution, when there are burrs, the movement distance of the force rod is longer than when there are no burrs, so that the water level in the box rises higher, and then the buoyancy rod is driven upward by the action of buoyancy, so that the first contact point contacts the second contact point. Since the first contact point, the second contact point and the rotating wheel are electrically connected, when the first contact point contacts the second contact point, the rotating wheel is triggered to start. This structure can achieve the effect of detecting burrs.

[0018] 5. The automatic detection Kaiping shearing machine rotates the rotating wheel while driving the outer annular belt to rotate synchronously. When the rotating wheel is triggered to start, current is passed into the coil. Since the grinding block is made of magnetic material, the coil generates a magnetic force that repels the grinding block, and then pushes the grinding block to rotate around the limiting rod, so that the grinding head on the grinding block contacts the shearing surface of the plate, and then the burrs on the plate are ground under the action of the annular belt. This structure achieves the effect of removing burrs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the sports board of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the casing of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the belt of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the track belt of the present invention; Figure 6It is a schematic diagram of the three-dimensional structure of the telescopic platform of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the cylindrical barrel of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the trigger component of the present invention.

[0020] In the figure: 1, casing; 2, shearing plate component; 3, scanning component; 4, transport component; 41, driving shaft; 42, belt; 43, magnetic belt; 44, guide wheel; 45, fixed rod; 46, track belt; 5, moving component; 51, telescopic table; 52, moving plate; 53, force rod; 54, first spring; 55, cylinder; 56, box; 57, platform block; 6, grinding component; 61, rotating wheel; 62, annular belt; 63, grinding block; 64, limiting rod; 65, coil; 7, trigger component; 71, fixed block; 72, buoyancy rod; 73, first contact; 74, second spring; 75, second contact. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0022] See also Figure 1-8 , an automatic detection Kaiping shearing machine, including a casing 1, a shearing component 2 is fixedly installed on the left side of the casing 1, a scanning component 3 is fixedly connected to the front and rear inner walls above the casing 1, a transport component 4 is movably installed on the lower side of the inner part of the casing 1, a moving component 5 is fixedly connected to the upper side of the transport component 4 and to the inner wall of the casing 1, the moving component 5 is symmetrically arranged about the front and rear of the inner side of the casing 1, a grinding component 6 is rotatably connected to the front side of the moving component 5, and a trigger component 7 is movably installed on the inner side of the moving component 5; The motion assembly 5 includes a telescopic table 51 fixedly connected to the inner rear wall of the housing 1, and a motion plate 52 is fixedly connected to the front side of the telescopic table 51. When the motion plate 52 pushes the plate, the reaction force of the shear surface of the plate pushes the force rod 53, so that the force rod 53 compresses the first spring 54. A platform block 57 is fixedly connected to the front side of the motion plate 52, and the inner side of the platform block 57 is penetrated by the force rod 53. Three groups of force rods 53 are evenly and symmetrically arranged on the platform block 57. The axial direction of the force rod 53 is sleeved with the first spring 54. The front side of the motion plate 52 The side of the moving plate 52 is fixedly connected with a cylindrical barrel 55. Since the box 56 and the cylindrical barrel 55 contain aqueous solution, when there are burrs, the force-bearing rod 53 moves longer than when there are no burrs, so that the water level in the box 56 rises higher, and then the buoyancy rod 72 is driven upward by the buoyancy, so that the first contact 73 contacts the second contact 75. Since the first contact 73, the second contact 75 and the rotating wheel 61 are electrically connected, when the first contact 73 contacts the second contact 75, the rotating wheel 61 is triggered to start. This structure can achieve the effect of detecting burrs. The rear end of the moving plate 52 penetrates and extends into the interior of the cylindrical barrel 55 and is slidably connected to the inner wall of the cylindrical barrel 55. The rear end of the cylindrical barrel 55 is fixedly connected with the box 56.

[0023] Furthermore, the transport assembly 4 includes a drive shaft 41 rotatably connected to the front and rear inner walls of the housing 1. The drive shaft 41 is symmetrically arranged about the front and rear inner walls of the housing 1. The outer side of the drive shaft 41 is rotatably connected to a belt 42. The drive shaft 41 drives the belt 42 on its outer side to rotate synchronously. After shearing, since the magnetic belt 43 is made of magnetic material, the sheared sheet is adsorbed on the outer surface of the magnetic belt 43. This structure can achieve the effect of no need for manual labor and high degree of automation. The front side of the belt 42 is fixedly connected to the magnetic belt 43.

[0024] Furthermore, the inner side of the magnetic belt 43 is fixedly connected with a track belt 46, and the track belt 46 is rotatably connected with the guide wheel 44 through a convex groove. Since the magnetic belt 43 is fixedly connected with the belt 42, the magnetic belt 43 rotates synchronously. Since the inner side of the magnetic belt 43 is fixedly connected with the track belt 46, the magnetic belt 43 is transported with up and down slopes through the guide wheel 44 and the track belt 46 while rotating, so that the scanning component 3 can scan the three angles of the plate when performing laser scanning on the plate. This structure can detect the flattening effect of the flattening machine, scan at three angles, and scan the data comprehensively. The center position of the guide wheel 44 is rotatably connected with a fixed rod 45, and the fixed rod 45 is fixedly connected to the front and rear inner walls of the housing 1.

[0025] While transporting and scanning the plates, the telescopic table 51 is started to drive the moving plate 52 to move back and forth, so that after the plates are adsorbed by the magnetic force of the magnetic belt 43, the moving plate 52 can push the plates to be placed in a consistent position. This structure achieves a consistent placement of the plates and does not affect the effect of laser scanning.

[0026] Furthermore, the grinding assembly 6 includes a rotating wheel 61 rotatably connected to the fixed column on the front side of the moving plate 52, and an annular belt 62 is rotatably connected to the axial outer side of the rotating wheel 61. Since the grinding block 63 is made of magnetic material, the coil 65 generates a magnetic force that repels the grinding block 63, and then pushes the grinding block 63 to rotate 90 degrees around the limiting rod 64, so that the grinding head on the grinding block 63 contacts the shear surface of the plate, and then the burrs of the plate are ground under the action of the annular belt 62. This structure achieves the effect of removing burrs. A plurality of evenly distributed limiting rods 64 are fixedly connected to the outer side of the annular belt 62.

[0027] Furthermore, the other end of the limiting rod 64 is rotatably connected to the grinding block 63, and a coil 65 is provided on the rear side of the grinding block 63 and on the inner side of the moving plate 52. When the rotating wheel 61 rotates, the rotating wheel 61 drives the outer annular belt 62 to rotate synchronously. When the rotating wheel 61 is triggered to start, current is passed into the inside of the coil 65, and a groove corresponding to the coil 65 is opened on the moving plate 52.

[0028] Furthermore, the trigger assembly 7 includes a fixed block 71 fixedly connected to the left and right inner walls of the box body 56, and a buoyancy rod 72 is connected to the center of the fixed block 71, and the upper side of the buoyancy rod 72 is fixedly connected to the first contact 73.

[0029] Furthermore, the second spring 74 is sleeved on the axial outer side of the buoyancy rod 72 and between the fixed block 71 and the first contact 73, and the buoyancy rod 72 is driven to move upward by the action of buoyancy, so that the first contact 73 and the second contact 75 are in contact. Since the first contact 73, the second contact 75 and the rotating wheel 61 are electrically connected, when the first contact 73 and the second contact 75 are in contact, the rotating wheel 61 is triggered to start, and this structure can achieve the effect of detecting burrs. The upper side of the first contact 73 is provided with the second contact 75, and the second contact 75 is fixedly connected to the bottom side of the upper cover of the box body 56.

[0030] Furthermore, the grinding block 63 is made of magnetic material, and a circular through hole corresponding to the cylindrical tube 55 is provided on one side of the box body 56 connected to the cylindrical tube 55 .

[0031] The specific usage and function of this embodiment are as follows: When in use, the plate flattened by the flattening machine is first automatically and intermittently sheared by the shearing component 2, and at the same time, the external driving device is started to drive the driving shaft 41 to rotate, so that the driving shaft 41 drives the belt 42 on its outside to rotate synchronously. After shearing, since the magnetic belt 43 is made of magnetic material, the sheared plate is adsorbed on the outer surface of the magnetic belt 43. This structure can achieve the effect of no need for manpower and a high degree of automation.

[0032] Furthermore, since the magnetic belt 43 is fixedly connected to the belt 42, the magnetic belt 43 rotates synchronously, and since the track belt 46 is fixedly connected to the inner side of the magnetic belt 43, the magnetic belt 43 is transported up and down slopes through the guide wheel 44 and the track belt 46 while rotating, so that the scanning component 3 can scan the plate at three angles when performing laser scanning on the plate. This structure can detect the flattening effect of the flattening machine, scan at three angles and obtain comprehensive scanning data.

[0033] Furthermore, while transporting and scanning the plates, the telescopic table 51 is started to drive the moving plate 52 to move back and forth, so that after the plates are adsorbed by the magnetic force of the magnetic belt 43, the moving plate 52 can push the plates to be placed in a consistent position. This structure achieves a consistent placement of the plates and does not affect the effect of laser scanning.

[0034] Furthermore, when the moving plate 52 pushes the plate, the reaction force of the shear surface of the plate pushes the force-bearing rod 53, so that the force-bearing rod 53 compresses the first spring 54. Since the box 56 and the cylindrical tube 55 contain an aqueous solution, when there are burrs, the movement distance of the force-bearing rod 53 is longer than when there are no burrs, so that the water level in the box 56 rises higher, and then the buoyancy rod 72 is driven upward by the action of buoyancy, so that the first contact 73 contacts the second contact 75. Since the first contact 73, the second contact 75 and the rotating wheel 61 are electrically connected, when the first contact 73 contacts the second contact 75, the rotating wheel 61 is triggered to start. This structure can achieve the effect of detecting burrs.

[0035] Furthermore, when the rotating wheel 61 rotates, the rotating wheel 61 drives the outer annular belt 62 to rotate synchronously. When the rotating wheel 61 is triggered and started, current is passed through the inside of the coil 65. Since the grinding block 63 is a magnetic material, the coil 65 generates a magnetic force that repels the grinding block 63, and then pushes the grinding block 63 to rotate 90 degrees around the limiting rod 64, so that the grinding head on the grinding block 63 contacts the shear surface of the plate, and then the burrs of the plate are ground under the action of the annular belt 62. This structure achieves the effect of removing burrs.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic detection shearing machine, comprising a housing (1), characterized in that: A shearing plate component (2) is fixedly mounted on the left side of the housing (1); a scanning component (3) is fixedly connected to the front and rear inner walls above the housing (1); a transport component (4) is movably mounted on the lower side of the interior of the housing (1); a motion component (5) is fixedly connected to the upper side of the transport component (4) and to the inner wall of the housing (1); the motion component (5) is symmetrically arranged front and rearward with respect to the inner side of the housing (1); a grinding component (6) is rotatably connected to the front side of the motion component (5); and a trigger component (7) is movably mounted on the inner side of the motion component (5); The motion assembly (5) comprises a telescopic table (51) fixedly connected to the inner rear wall of the casing (1); a motion plate (52) is fixedly connected to the front side of the telescopic table (51); a platform block (57) is fixedly connected to the front side of the motion plate (52); a force-bearing rod (53) is connected through the inner side of the platform block (57); three groups of the force-bearing rods (53) are evenly and symmetrically arranged on the platform block (57); a first spring (54) is axially sleeved on the force-bearing rod (53); a cylindrical tube (55) is fixedly connected to the front side of the motion plate (52); a rear end portion of the motion plate (52) penetrates and extends into the interior of the cylindrical tube (55) and is slidably connected to the inner wall of the cylindrical tube (55); and a box body (56) is fixedly connected to the rear end portion of the cylindrical tube (55).

2. The automatic detection shearing machine according to claim 1 is characterized in that: The transport assembly (4) comprises a drive shaft (41) rotatably connected to the front and rear inner walls of the casing (1); the drive shaft (41) is symmetrically arranged with respect to the front and rear inner walls of the casing (1); the outer side of the drive shaft (41) is rotatably connected to a belt (42); and the front side of the belt (42) is fixedly connected to a magnetic belt (43).

3. The automatic detection shearing machine according to claim 2 is characterized in that: A track belt (46) is fixedly connected to the inner side of the magnetic belt (43); the track belt (46) is rotatably connected to a guide wheel (44) via a convex groove; a fixing rod (45) is rotatably connected to the center of the guide wheel (44); the fixing rod (45) is fixedly connected to the front and rear inner side walls of the casing (1).

4. The automatic detection shearing machine according to claim 1 is characterized in that: The grinding assembly (6) comprises a rotating wheel (61) rotatably connected to a fixed column on the front side of the moving plate (52); an annular belt (62) is rotatably connected to the axial outer side of the rotating wheel (61); and a plurality of evenly distributed limiting rods (64) are fixedly connected to the outer side of the annular belt (62).

5. The automatic detection shearing machine according to claim 4 is characterized in that: The other end of the limiting rod (64) is rotatably connected to a grinding block (63), a coil (65) is provided on the rear side of the grinding block (63) and on the inner side of the moving plate (52), and a groove corresponding to the coil (65) is provided on the moving plate (52).

6. The automatic detection shearing machine according to claim 1 is characterized in that: The trigger assembly (7) comprises a fixing block (71) fixedly connected to the left and right inner walls of the box body (56); a buoyancy rod (72) is connected through the center of the fixing block (71); and the upper side of the buoyancy rod (72) is fixedly connected to the first contact point (73).

7. The automatic detection shearing machine according to claim 6 is characterized in that: A second spring (74) is sleeved on the axially outer side of the buoyancy rod (72) and between the fixed block (71) and the first contact (73); a second contact (75) is provided on the upper side of the first contact (73); and the second contact (75) is fixedly connected to the bottom side surface of the upper cover of the box body (56).

8. The automatic detection shearing machine according to claim 4 is characterized in that: The grinding block (63) is made of magnetic material, and a circular through hole corresponding to the cylindrical tube (55) is provided on one side of the box body (56) connected to the cylindrical tube (55).