A laser cutting apparatus for manufacturing of agricultural implements of various gauges

CN122913706APending Publication Date: 2026-10-16YANGZHOU BAODA RUBBER & PLASTIC PROD
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Patent Information

Application Number
CN202611180287.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-05
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

[0004]为了解决现有技术中工件切割区域下方支撑严重不足,尤其切割薄板收割机刀片、播种机仿形板等零件时,因悬空面积大,极易产生热变形和振动,切割精度和断面质量恶化

Benefits of technology

[0020]The beneficial effects of the technical solution provided by this invention include:

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Abstract

The application relates to the technical field of laser cutting, in particular to a laser cutting equipment for manufacturing multi-specification agricultural mechanism parts, a device base for transversely sliding and supporting rollers is rotationally connected to the top of the laser cutting equipment, the device base is arranged in a hollow frame structure, rotating supports are fixedly connected to the side surface of the device base, the bottom of the rotating support is fixedly connected with the fixed end of a first motor, the driving shaft of the first motor is fixedly connected with the fixed end of a first telescopic rod, and the movable end of the first telescopic rod is fixedly connected with a cutting device. The laser cutting equipment for manufacturing multi-specification agricultural mechanism parts can clamp the cutting area from the top and the bottom simultaneously when cutting, the pressing surface at the bottom of the fixing frame is pressed against the upper surface of the plate, the cutting bottom is brushed to remove slag, the bottom surface of the plate after cutting is clean, the plate curling is inhibited when cutting is completed, and the slag solidification is reduced.
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Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for manufacturing multi-specification agricultural machinery components. Background Technology

[0002] Agricultural machinery manufacturing involves a wide variety of metal components, diverse shapes, and varying material thicknesses and specifications. With the continuous improvement of agricultural mechanization and the ongoing upgrading of agricultural machinery products, agricultural machinery manufacturers face the demand for multi-variety, small-batch, and customized production. Traditional agricultural machinery parts processing mainly employs stamping and shearing processes. Mold making is complex, has a long manufacturing cycle, and is costly, making it suitable only for mass production, significantly limiting single-piece and small-batch production. Furthermore, traditional processing methods result in low precision and rough product appearance. Irregularly shaped parts require complex processes such as welding and grinding, leading to long production cycles and severely hindering the improvement of agricultural machinery product development efficiency and technological levels. While plasma cutting has improved cutting efficiency to some extent, it still suffers from drawbacks such as low cutting precision, a large heat-affected zone, wide kerf, less smooth cut surfaces, and excessive slag buildup.

[0003] CN223172159U discloses an automatic welding device for the bed mechanism of a laser cutting equipment. During the horizontal clamping of the workpiece by the first clamping mechanism, the second clamping mechanism automatically clamps the workpiece vertically. It is simple to operate and highly automated, thereby reducing the workload of workers while improving the transmission efficiency of the equipment.

[0004] In order to address the serious lack of support under the workpiece cutting area in the existing technology, especially when cutting thin plate harvester blades, seeder guide plates and other parts, the large suspended area makes them prone to thermal deformation and vibration, which deteriorates the cutting accuracy and cross-sectional quality. Summary of the Invention

[0005] The technical solution provided by this invention is as follows: A laser cutting device for manufacturing multi-specification agricultural machinery components, comprising:

[0006] The top is rotatably connected to a device base for laterally sliding support rollers. The device base is a hollow frame structure. A rotating bracket is fixedly connected to the side of the device base. The bottom of the rotating bracket is fixedly connected to the fixed end of a first motor. The drive shaft of the first motor is fixedly connected to the fixed end of a first telescopic rod. The movable end of the first telescopic rod is fixedly connected to a cutting device.

[0007] The limiting frame is configured as a C-shaped structure, with its bottom slidably connected to the top of the equipment base. The bottom of the limiting frame is driven laterally by a cylinder, and a conveying roller is rotatably connected to the inner wall side of the limiting frame.

[0008] The cutting device includes:

[0009] A cutting gun equipped with a heat sink, wherein the side of the heat sink of the cutting gun is configured with an arc-shaped structure, the top of the cutting gun is fixedly connected to the movable end of a second telescopic rod, the fixed end of the second telescopic rod is fixedly connected to a fixing frame, and the bottom of the fixing frame is fixedly connected to a spring rod.

[0010] A movable plate, configured as an L-shape, has a fixed part of a belt assembly fixedly connected to its side. A grinding roller is connected to the rotating part of the belt assembly, and its side is rotatably connected to the side of the movable plate. A deflection assembly is fixedly connected to the side of a fixed frame, and its side is fixedly connected to the movable end of a first telescopic rod. A base supports and fixes the equipment. The sheet material is guided along the side of the limiting frame and extruded and conveyed by a conveyor roller. The conveyor roller is driven to rotate by an independent power source and pushes the sheet material using friction. After starting the first motor, the first motor drive shaft drives the first telescopic rod to rotate. The movable end of the first telescopic rod drives the cutting device to move. The sheet material moves along the inner wall of the limiting frame and undergoes contour cutting with the assistance of the cutting device. The C-shaped cross-section of the limiting frame has upper and lower flanges to accommodate the edges of the sheet material, ensuring a smooth movement throughout the process. Cheng Zhanping constrains the cutting process to prevent edge warping caused by laser cutting. The movable end of the first telescopic rod drives the deflection component to move, which in turn drives the fixed frame to move. The deflection component's built-in drive unit drives the fixed frame to deflect around the vertical axis to adjust the cutting gun's direction and coordinate with the curved trajectory. The fixed frame drives the second telescopic rod to move, and the movable end of the second telescopic rod drives the cutting gun to descend and perform laser cutting on the top of the plate. Simultaneously, the elastic element inside the spring rod pushes the moving plate upward, which drives the grinding roller to press against the lower surface of the plate. The bottom pressing surface of the fixed frame presses against the upper surface of the plate. The grinding roller and the pressing surface clamp the cutting area simultaneously from top to bottom. After the belt assembly is started, the output wheel of the belt assembly drives the grinding roller to rotate. The rotating grinding roller brushes away the slag sprayed at the bottom of the cutting position, making the bottom surface of the plate clean after cutting. This completes the cutting process while inhibiting plate warping and reducing slag consolidation.

[0011] Preferably, the sliding rod is vertically connected and slidably guided, the side of the sliding rod has a sliding hole, the side of the sliding rod is fitted with and slidably connected to a sliding ring, and the bottom of the sliding ring is fixedly connected to a support spring;

[0012] The fixed ring is configured as a ring structure. A sliding column is fixedly connected to the inner side of the fixed ring. A sliding groove adapted to the fixed ring is opened at the bottom of the side of the sliding rod. The sliding groove is configured as a guide groove structure with upper and lower sections. The top of the sliding rod is fixedly connected to the side of the fixed frame. The top of the sliding ring is fixedly connected to the bottom of the moving plate.

[0013] Preferably, the fixed frame includes a movable frame, an upper fixed plate is fixedly connected to the top of the movable frame, a side fixed plate is fixedly connected to the side of the movable frame, a lower fixed plate is fixedly connected to the side of the movable frame below the upper fixed plate, and a rotating roller is rotatably connected to the bottom of the lower fixed plate.

[0014] Preferably, the side fixing plate is positioned away from the upper fixing plate. The side of the side fixing plate is fixedly connected to the side of the deflection assembly. The top of the upper fixing plate is fixedly connected to the fixed end of the second telescopic rod. The bottom of the side fixing plate is fixedly connected to the top of the sliding rod. The moving frame is fixedly connected to the upper fixing plate and the side fixing plate, so that the side fixing plate provides a mounting base for the sliding rod while the upper fixing plate supports the second telescopic rod. Multiple sets of triangular reinforcing ribs inside the moving frame enhance the overall rigidity. The lower fixing plate is fixedly connected to the lower end of the moving frame. When the entire fixing frame moves downward, the lower fixing plate drives the rotating roller to press against the top surface of the plate, and the rotating roller can rotate freely. When the plate is cut and pushed forward, the rotating roller rotates automatically and continuously rolls against the top surface of the plate to achieve cutting. The cutting and support move synchronously. The lower end of the support spring abuts against the stepped hole of the fixed frame, while the upper end pushes the slip ring. The slip ring is fixed to the moving plate. The elastic force of the support spring drives the moving plate to move upward through the slip ring. The moving plate carries the grinding roller upward and presses it against the lower surface of the board. The lower end of the sliding rod is fixed to the moving plate, while the upper end slides through the through hole of the fixed frame, thus limiting the lifting trajectory of the moving plate. The sliding hole is used to pass through the air guide tube of the grinding roller. The sliding groove is stepped and opened on the side of the fixed frame, with high and low positioning surfaces for the fixed ring to be selected and locked. The fixed ring is sleeved on the sliding rod and can rise and fall with the moving plate. By locking the fixed ring at different height positions, the pre-compression of the support spring is changed, thereby adjusting the support force of the grinding roller on the bottom surface of the board to adapt to the pressing requirements of boards of different thicknesses.

[0015] Preferably, the grinding roller includes a rotating tube, a threaded strip is sleeved and fixedly connected to the side of the rotating tube, a ventilation hole is opened at the top of the rotating tube, a rotating joint is rotatably connected to the side of the rotating tube, an air pipe is connected to the top of the rotating joint, the rotating tube passes through the side of the moving plate and is rotatably connected to the side of the moving plate, the air pipe is located inside the sliding hole, and the rotating part of the belt assembly is sleeved on the side of the rotating tube.

[0016] Preferably, the threaded strip includes a forward threaded strip, and a reverse threaded strip is fixedly connected to the side of the forward threaded strip. The forward and reverse threaded strips are sleeved on the side of the rotating tube and fixedly connected to the side of the rotating tube. After the belt assembly is started, the rotating part of the belt assembly drives the rotating tube to rotate. The threaded strip, which is integrally fixed to the outer circumference of the rotating tube and consists of the forward and reverse threaded strips, rotates synchronously. An external air source is introduced into the rotating joint through an air pipe. The stationary end of the rotating joint is connected to the air pipe, while the rotating end is connected to the rotating tube and maintains an airtight seal. The gas enters the interior of the rotating tube through the rotating joint and then exits through the ventilation. As the moving plate drives the rotating tube upwards, the rotating tube, along with the forward and reverse threaded strips, supports the area below the cutting position of the plate. When the rotating tube rotates, the forward and reverse threaded strips spirally push the slag generated during cutting, driving it away from the cutting area towards both ends of the rotating tube. At the same time, the airflow from the ventilation holes cools the bottom of the cut and blows away the residue. Multiple sets of rotating tubes and the upper rotating roller together clamp the plate near the cutting point to inhibit local curling of the plate. With the guiding action of the forward and reverse threaded strips, the slag is quickly discharged to prevent the slag particles from accumulating and solidifying at the bottom of the cut.

[0017] Preferably, the deflection assembly includes a rotating base, a worm gear is fixedly connected to the top of the rotating base, an electric worm is engaged with the side of the worm gear, and a fixed base is fixedly connected to the fixed end of the electric worm.

[0018] Preferably, the side of the fixed base is fixedly connected to the movable end of the first telescopic rod, the side of the rotating base is fixedly connected to the side of the movable frame, and the rotating base is positioned between the fixed bases.

[0019] Preferably, the conveying roller includes an upper support roller, and a lower support roller is disposed below the upper support roller. The top of the upper support roller is rotatably connected to the top of the inner wall of the limiting frame, and the bottom of the lower support roller is rotatably connected to the bottom of the inner wall of the limiting frame. A certain offset angle is provided between the upper support roller and the lower support roller. When performing contour cutting, the electric worm gear is activated. The worm gear shaft meshes with the worm wheel to drive the worm wheel to rotate. The worm wheel is coaxially fixed to the rotating base. The rotating base is fitted into the fixed base through bearings, and the fixed base is securely connected to the movable end of the first telescopic rod. The worm gear rotates, causing the rotating base to rotate around the fixed base. The lower end of the rotating base is fixed to the moving frame, which causes the moving frame and the cutting gun to wobble in coordination with the material feeding to follow the contour trajectory. The upper and lower support rollers are staggered back and forth along the material conveying direction, and the roller surfaces are staggered up and down in the thickness direction. The upper and lower support rollers clamp the material between them and cause the material to form a slight wave-like deformation, increasing the contact angle between the roller surface and the material and the driving torque. Compared with the previous symmetrical roller group, the stacked staggered arrangement simplifies the clamping mechanism while ensuring stable clamping and smooth movement of the material.

[0020] The beneficial effects of the technical solution provided by this invention include:

[0021] 1. The equipment base supports and fixes the whole. The sheet metal is introduced along the side of the limiting frame and pushed forward by the conveyor roller. The C-shaped cross-section of the limiting frame is turned up and down to contain the edge of the sheet metal and flatten it throughout the process to prevent edge warping caused by laser cutting. The cutting gun descends along the contour trajectory under the coordination of movement and deflection and performs laser cutting on the top of the sheet metal. At the same time, the grinding roller presses against the lower surface of the sheet metal, and the pressing surface at the bottom of the fixed frame abuts against the upper surface of the sheet metal, forming a synchronous clamping of the cutting area from top to bottom. The grinding roller rotates to brush away the slag sprayed from the bottom of the cut, making the bottom surface of the sheet metal clean after cutting. When the cutting is completed, the sheet metal curling is suppressed and the slag consolidation is reduced.

[0022] 2. The support spring provides upward force through the slip ring and the moving plate, making the grinding roller stick to the lower surface of the board. The sliding rod limits the lifting trajectory of the moving plate. The air guide pipe passes through the sliding hole. The fixed ring can change the spring pre-compression by locking into different positioning surfaces of the sliding groove, thereby adjusting the support force of the grinding roller on the bottom surface of the board to adapt to different thicknesses of boards. Multiple sets of triangular reinforcing ribs inside the moving frame enhance the overall rigidity. The lower fixed plate is connected to the rotating roller. When the fixed frame moves down, the rotating roller presses against the top surface of the board and can rotate freely. When the board is pushed forward, the rotating roller rolls the top surface. Cutting and support move synchronously.

[0023] 3. When the rotating tube rotates, the forward and reverse threaded bars guide the cutting slag away from the cutting area at both ends. Compressed gas is sprayed out from the ventilation holes inside the rotating tube to cool the cut and blow away the residue. The rotating tube rises to support the lower surface of the plate and, together with the upper rotating roller, clamps the area near the cutting point to suppress local curling of the plate. The slag is continuously discharged and guided away to avoid accumulation and solidification at the bottom of the cut.

[0024] 4. When performing contour cutting, the cutting gun sways, coordinating with the material feed to follow the contour trajectory. The upper and lower support rollers are staggered back and forth along the conveying direction, and the roller surfaces are staggered up and down in the thickness direction, clamping the material in the middle and forcing the material to produce a slight wavy deformation, increasing the contact angle between the roller surface and the material and the driving torque. The stacked staggered arrangement simplifies the clamping mechanism while ensuring stable clamping and smooth movement of the material. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the laser cutting equipment used to manufacture multi-specification agricultural machinery components according to the present invention.

[0026] Figure 2 This is a schematic diagram of the cutting device structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the spring rod structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the fixing frame structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the grinding roller structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the threaded bar structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the deflection component structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the conveyor roller structure of the present invention.

[0033] In the diagram: 1. Equipment base; 2. Rotating bracket; 3. First motor; 4. First telescopic rod; 5. Cutting device; 6. Limiting frame; 7. Conveyor roller; 501. Fixed frame; 502. Second telescopic rod; 503. Cutting gun; 504. Spring rod; 505. Moving plate; 506. Belt assembly; 507. Grinding roller; 508. Deflection assembly; 5041. Sliding rod; 5042. Sliding hole; 5043. Slip ring; 5044. Support spring; 5045. Fixed ring; 5046. Sliding groove; 5011, Movable frame; 5012, Upper fixed plate; 5013, Side fixed plate; 5014, Lower fixed plate; 5015, Rotating roller; 5071, Rotating tube; 5072, Threaded strip; 5073, Ventilation hole; 5074, Rotary joint; 5075, Air pipe; 50721, Forward threaded strip; 50722, Reverse threaded strip; 5081, Rotating base; 5082, Worm gear; 5083, Electric worm gear; 5084, Fixed base; 701, Upper support roller; 702, Lower support roller. Detailed Implementation

[0034] Example 1, please refer to Figures 1-2This invention provides a technical solution: a laser cutting device for manufacturing multi-specification agricultural machinery components. The device base 1 supports and fixes the device. The sheet metal is introduced along the side of the limiting frame 6 and conveyed by the extrusion of the conveyor roller 7. The conveyor roller 7 is driven to rotate by an independent power source and pushes the sheet metal by friction. A first motor 3 is started; the first motor 3 is fixed to the bottom of the rotating bracket 2. The drive shaft of the first motor 3 drives the first telescopic rod 4 to rotate. The movable end of the first telescopic rod 4 drives the cutting device 5 to move. The sheet metal moves along the inner wall of the limiting frame 6 and is subjected to contour cutting with the movement of the cutting device 5. The C-shaped cross-section of the limiting frame 6 forms upper and lower flanges that contain the edges of the sheet metal, ensuring that the sheet metal is flattened and constrained throughout the movement process, thereby preventing edge warping caused by laser cutting. The movable end of the first telescopic rod 4 drives the deflection component 508 to move. 08 drives the fixed frame 501 to move. The drive unit built into the deflection component 508 drives the fixed frame 501 to deflect around the vertical axis, thereby adjusting the pointing curve trajectory of the cutting gun 503. The fixed frame 501 drives the second telescopic rod 502 to move. The movable end of the second telescopic rod 502 drives the cutting gun 503 to descend, performing laser cutting on the top of the board. At the same time, the elastic element inside the spring rod 504 pushes the moving plate 505 upward. The moving plate 505 drives the grinding roller 507 to press against the lower surface of the board. The pressing surface at the bottom of the fixed frame 501 abuts against the upper surface of the board. The grinding roller 507 and the pressing surface clamp the cutting area synchronously from top to bottom. The belt assembly 506 is started. The output wheel of the belt assembly 506 drives the grinding roller 507 to rotate. The rotating grinding roller 507 brushes away the slag at the bottom of the cutting position, making the bottom surface of the board clean after cutting. Thus, while completing the cutting, the board curling is suppressed and the slag consolidation is reduced.

[0035] Example 2, please refer to Figures 1-4Based on the first embodiment, the lower end of the support spring 5044 abuts against the stepped hole provided in the fixed frame 501, and the upper end pushes the slip ring 5043. The slip ring 5043 is fixedly connected to the moving plate 505. The elastic force of the support spring 5044 drives the moving plate 505 to move upward through the slip ring 5043. The moving plate 505 then carries the grinding roller 507 upward to press against the lower surface of the plate. The lower end of the sliding rod 5041 is fixed to the moving plate 505, while the upper end slides through the through hole of the fixed frame 501, thereby limiting the lifting trajectory of the moving plate 505. The sliding hole 5042 is used to pass through the air guide tube of the grinding roller 507. The sliding groove 5046 is steppedly opened on the side of the fixed frame 501. The high and low positioning surfaces of the sliding groove 5046 are used for the fixed ring 5045 to be selected and locked. The fixed ring 5045 is sleeved on the sliding rod 5041 and can rise with the moving plate 505. The pre-compression of the support spring 5044 is changed by locking the fixing ring 5045 at different height positions, thereby adjusting the support force of the grinding roller 507 on the bottom surface of the board to adapt to the pressing requirements of boards of different thicknesses. The movable frame 5011 is fixedly connected to the upper fixed plate 5012 and the side fixed plate 5013. The side fixed plate 5013 provides a mounting base for the sliding rod 5041. The upper fixed plate 5012 carries the second telescopic rod 502. Multiple sets of triangular reinforcing ribs inside the movable frame 5011 improve the overall rigidity. The lower fixed plate 5014 is fixedly connected to the lower end of the movable frame 5011. When the fixed frame 501 moves down as a whole, the lower fixed plate 5014 drives the rotating roller 5015 to press against the top surface of the board. The rotating roller 5015 can rotate freely. When the board is cut and pushed, the rotating roller 5015 rotates automatically and continuously rolls against the top surface of the board, realizing synchronous movement of cutting and support.

[0036] Example 3, please refer to Figures 1-6Based on the second embodiment, the belt assembly 506 is activated. The rotating part of the belt assembly 506 drives the rotating tube 5071 to rotate. A threaded strip 5072 is integrally fixed on the outer circumference of the rotating tube 5071. The threaded strip 5072 is composed of a forward threaded strip 50721 and a reverse threaded strip 50722. When the rotating tube 5071 rotates, the threaded strip 5072 rotates synchronously. An external air source is introduced into the rotating joint 5074 through the air pipe 5075. The stationary end of the rotating joint 5074 is connected to the air pipe 5075, and the rotating end is connected to the rotating tube 5071 and maintains an airtight seal. The gas enters the interior of the rotating tube 5071 through the rotating joint 5074 and is then ejected from the vent 5073. The moving plate 505 drives the rotating tube 5071. During the upward movement, the rotating tube 5071, together with the forward threaded bar 50721 and the reverse threaded bar 50722, supports the area below the cutting position of the plate. When the rotating tube 5071 rotates, the forward threaded bar 50721 and the reverse threaded bar 50722 spirally push the slag generated during cutting, driving the slag away from the cutting area towards both ends of the rotating tube. At the same time, the airflow ejected from the ventilation hole 5073 cools the bottom of the cut and blows away the residue. Multiple sets of rotating tubes 5071 and the rotating roller 5015 above together clamp the plate near the cutting point, suppressing local curling of the plate. With the guiding action of the forward threaded bar 50721 and the reverse threaded bar 50722, the slag is quickly discharged, preventing the slag particles from accumulating and solidifying at the bottom of the cut.

[0037] Example 4, please refer to Figures 1-8 Based on the third embodiment, when performing contour cutting, the electric worm gear 5083 is activated. The worm shaft of the electric worm gear 5083 meshes with the worm wheel 5082 and drives the worm wheel 5082 to rotate. The worm wheel 5082 is coaxially fixed with the rotating base 5081. The rotating base 5081 is fitted into the fixed base 5084 through bearings. The fixed base 5084 is tightly connected to the movable end of the first telescopic rod 4. The rotation of the worm wheel 5082 drives the rotating base 5081 to rotate around the fixed base 5084. A movable frame 5011 is fixed to the lower end of the rotating base 5081. The moving frame 5011, together with the cutting gun 503, sways, coordinating with the material feed to follow the contour trajectory. The upper support roller 701 and the lower support roller 702 are staggered back and forth along the material conveying direction, and the roller surfaces are offset up and down in the thickness direction. The upper support roller 701 and the lower support roller 702 clamp the material between them, causing the material to form a slight wave-like deformation. This increases the contact wrap angle between the roller surface and the material and the driving torque. Compared with the previous symmetrical roller group, this stacked staggered arrangement simplifies the clamping mechanism while ensuring stable clamping and smooth movement of the material.

[0038] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A laser cutting device for manufacturing multi-specification agricultural machinery components, characterized in that, include: The top is rotatably connected to a device base for laterally sliding support rollers. The device base is a hollow frame structure. A rotating bracket is fixedly connected to the side of the device base. The bottom of the rotating bracket is fixedly connected to the fixed end of a first motor. The drive shaft of the first motor is fixedly connected to the fixed end of a first telescopic rod. The movable end of the first telescopic rod is fixedly connected to a cutting device. The limiting frame is configured as a C-shaped structure, with its bottom slidably connected to the top of the equipment base. The bottom of the limiting frame is driven laterally by a cylinder, and a conveying roller is rotatably connected to the inner wall side of the limiting frame. The cutting device includes: A cutting gun equipped with a heat sink, wherein the side of the heat sink of the cutting gun is configured with an arc-shaped structure, the top of the cutting gun is fixedly connected to the movable end of a second telescopic rod, the fixed end of the second telescopic rod is fixedly connected to a fixing frame, and the bottom of the fixing frame is fixedly connected to a spring rod. A movable plate, configured as an L-shaped structure, has a fixed part of a belt assembly fixedly connected to its side, a grinding roller connected to the rotating part of the belt assembly, and the side of the grinding roller rotatably connected to the side of the movable plate. A deflection assembly is fixedly connected to the side of the fixed frame, and the side of the deflection assembly is fixedly connected to the movable end of the first telescopic rod.

2. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 1, characterized in that, The spring rod includes: A sliding rod is vertically connected and slidably guided. A sliding hole is opened on the side of the sliding rod. A sliding ring is sleeved on the side of the sliding rod and slidably connected. A support spring is fixedly connected to the bottom of the sliding ring. The fixed ring is configured as a ring structure. A sliding column is fixedly connected to the inner side of the fixed ring. A sliding groove adapted to the fixed ring is opened at the bottom of the side of the sliding rod. The sliding groove is configured as a guide groove structure with upper and lower sections. The top of the sliding rod is fixedly connected to the side of the fixed frame. The top of the sliding ring is fixedly connected to the bottom of the moving plate.

3. The laser cutting equipment for manufacturing multi-specification agricultural components according to claim 1, characterized in that: The fixed frame includes a movable frame, an upper fixed plate is fixedly connected to the top of the movable frame, a side fixed plate is fixedly connected to the side of the movable frame, a lower fixed plate is fixedly connected to the side of the movable frame below the upper fixed plate, and a rotating roller is rotatably connected to the bottom of the lower fixed plate.

4. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 3, characterized in that: The side fixing plate is positioned away from the upper fixing plate. The side of the side fixing plate is fixedly connected to the side of the deflection assembly. The top of the upper fixing plate is fixedly connected to the fixed end of the second telescopic rod. The bottom of the side fixing plate is fixedly connected to the top of the sliding rod.

5. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 1, characterized in that: The grinding roller includes a rotating tube, a threaded strip is sleeved and fixedly connected to the side of the rotating tube, a ventilation hole is opened at the top of the rotating tube, a rotating joint is rotatably connected to the side of the rotating tube, an air pipe is connected to the top of the rotating joint, the rotating tube passes through the side of the moving plate and is rotatably connected to the side of the moving plate, the air pipe is located inside the sliding hole, and the rotating part of the belt assembly is sleeved on the side of the rotating tube.

6. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 5, characterized in that: The threaded strip includes a forward threaded strip, and a reverse threaded strip is fixedly connected to the side of the forward threaded strip. The forward threaded strip and the reverse threaded strip are sleeved on the side of the rotating tube and fixedly connected to the side of the rotating tube.

7. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 1, characterized in that: The deflection assembly includes a rotating base, a worm gear fixedly connected to the top of the rotating base, an electric worm gear meshing with the side of the worm gear, and a fixed base fixedly connected to the fixed end of the electric worm gear.

8. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 7, characterized in that: The side of the fixed base is fixedly connected to the movable end of the first telescopic rod, the side of the rotating base is fixedly connected to the side of the movable frame, and the rotating base is positioned between the fixed bases.

9. The laser cutting equipment for manufacturing multi-specification agricultural machinery components according to claim 1, characterized in that: The conveying roller includes an upper support roller and a lower support roller is provided below the upper support roller. The top of the upper support roller is rotatably connected to the top of the inner wall of the limiting frame, and the bottom of the lower support roller is rotatably connected to the bottom of the inner wall of the limiting frame. A certain offset angle is provided between the upper support roller and the lower support roller.