A steel plate shearing machine

Abstract

The application relates to a steel plate shearing machine which comprises a rack, a workbench arranged on the rack, a punching mechanism arranged on the rack, a cylinder fixedly connected to the rack, a fixing frame connected to a piston rod of the cylinder, a containing groove arranged in the fixing frame, a cutter holder arranged in the containing groove, a cutter head connected to the bottom of the cutter holder, two guide plates fixedly connected to the inner wall of the rack, a vertical guide groove arranged on the guide plate, a sliding groove arranged on the guide plate and inclined upward from the bottom of the guide groove, a reset groove arranged at the top of the sliding groove and communicated with the top of the sliding groove and the guide groove, two limiting columns fixedly connected to the two sides of the cutter holder and slidably connected into the guide groove, the sliding groove and the reset groove. The application has the effects of reducing the friction between the cutter head and the steel plate, prolonging the service life of the cutter head and not affecting the quality of the steel plate.

Description

Technical Field

[0001] This application relates to the field of steel plate shearing equipment, and more particularly to a steel plate shearing machine. Background Technology

[0002] Shearing machines, as essential equipment for cutting sheet metal, are widely used in various industries such as automobile manufacturing, construction, and steel tower installation. Common types of shearing machines include hydraulic and parallel shearing machines. Hydraulic shearing machines rely on high-pressure hydraulic fluid to drive a piston, generating immense pressure to complete the cutting action, and are characterized by high efficiency and strong load-bearing capacity.

[0003] However, the hydraulic cylinder pushes the blade holder to move vertically, thereby driving the blade to move vertically to cut the steel plate. After shearing, the sides of the blade holder and the blade are in contact with the piston rod when the blade retracts. The shearing surface slides against the sides of the blade and the blade holder, and the steel plate rubs against the sides of the blade, causing varying degrees of damage to the shearing surfaces of the blade holder and the blade. The blade wears on the cutting surface of the steel plate, which not only affects the service life of the blade and the blade holder, but also affects the quality of the sheared steel plate. Therefore, setting up a shearing machine in which the blade returns to its original position away from the steel plate after cutting is an urgent problem to be solved. Summary of the Invention

[0004] In order to enable the cutter head to retract and reset away from the steel plate after shearing, thereby reducing friction between the cutter head and the steel plate, extending the service life of the cutter head, and not affecting the quality of the steel plate, this application provides a steel plate shearing machine.

[0005] The steel plate shearing machine provided in this application adopts the following technical solution:

[0006] A steel plate shearing machine includes a frame, a worktable mounted on the frame, and a punching mechanism mounted on the frame. The punching mechanism includes a hydraulic cylinder fixedly connected to the frame, the cylinder being vertically oriented. The piston rod of the hydraulic cylinder extends downward into the frame and is fixedly connected to a fixed frame. A receiving groove is formed within the fixed frame, and a blade holder is mounted within the receiving groove. A blade head is detachably connected to the bottom of the blade holder. Hinged telescopic components are provided at both ends of the blade holder and the fixed frame, allowing the blade holder to rotate and extend around the fixed frame. Guide plates are fixedly connected to symmetrical sides of the inner wall of the frame, and vertical... The guide plate has a sliding groove, which is inclined upward from the bottom of the guide groove. The guide plate has a reset groove at the top of the sliding groove. The two ends of the reset groove are connected to the top of the sliding groove and the guide groove, respectively. The sliding groove, reset groove and guide groove are connected end to end in sequence. Limiting posts are fixedly connected on both sides of the tool holder perpendicular to the loading direction of the worktable. The limiting posts are slidably connected in the guide groove, sliding groove and reset groove. The fixed frame is equipped with a connecting rod assembly. When the piston rod of the hydraulic cylinder retracts, the fixed frame drives the tool holder to rotate around the hinged telescopic assembly through the connecting rod assembly.

[0007] By adopting the above technical solution, when the piston rod of the hydraulic cylinder extends, it pushes the fixed frame and the blade holder downward, pushing the blade head downward to punch and shear the steel plate on the worktable. After shearing, the piston rod of the hydraulic cylinder retracts, and the connecting rod assembly on the fixed frame drives the blade holder to rotate around the hinged telescopic assembly, thereby causing the limit post to slide into the sliding groove, causing the blade holder to tilt and slide upward, thereby separating the blade holder from the steel plate, and the blade head retracts and resets away from the steel plate, reducing the friction between the blade head and the steel plate, extending the service life of the blade head, and not affecting the quality of the steel plate.

[0008] Optionally, the linkage assembly includes a first linkage hinged to the side wall of the fixed frame, a second linkage hinged to the end of the first linkage away from the fixed frame, and a third linkage hinged to the tool holder at the end of the second linkage away from the first linkage.

[0009] By adopting the above technical solution, when the user uses the device, after the cutter head has finished cutting, the piston rod of the hydraulic cylinder retracts, causing the fixed frame to slide upward. The fixed frame pulls the cutter holder to one side of the connecting rod through connecting rod one and connecting rod two, so that the limiting post on the cutter holder slides into the sliding groove, thereby pulling the cutter holder to tilt upward and retract, so that the cutter head moves away from the steel plate during the upward retraction process, reducing the friction between the steel plate and the cutter head.

[0010] Optionally, the hinged telescopic assembly includes positioning sleeves hinged to both ends of the tool holder, a positioning post hinged to the fixed frame, a return spring fixedly connected to the end of the positioning post, and the end of the return spring fixedly connected to the inner bottom wall of the positioning sleeve.

[0011] By adopting the above technical solution, when the user uses the device, after the cutter head has finished cutting, the piston rod of the hydraulic cylinder retracts, causing the fixed frame to slide upward. Connecting rod one and connecting rod two pull the tool holder to tilt to one side of connecting rod one. At this time, the elastic force of the return spring pushes the tool holder to move. Through the cooperation of connecting rod one, connecting rod two and the return spring, the limiting post on the tool holder slides into the sliding groove.

[0012] Optionally, a guide slope is provided on the inner wall of the receiving groove near the connecting rod, and a sliding slope that cooperates with the guide slope is provided on the tool holder.

[0013] By adopting the above technical solution, when the user uses the tool holder, after the limiting post on the tool holder slides upward along the sliding groove to the end, the return spring is stretched to the maximum. The tension of the return spring pulls the tool holder to continue sliding upward, so that the sliding slope of the tool holder slides upward along the guide slope, which facilitates the tool holder reset. This allows the limiting post on the tool holder to slide from the sliding groove into the reset groove, and finally slide to the top of the guide groove to reset.

[0014] Optionally, a locking block is fixedly connected to the cutter head, and a slot and a locking groove are provided on the cutter holder. The slot is used for inserting the cutter head, and the locking groove is used for inserting the locking block. Multiple through holes are provided on the cutter holder, and through holes are provided on the cutter head and the locking block. A bolt passes through the through holes and the through holes and is threaded with a nut.

[0015] By adopting the above technical solution, when the user uses the tool, the bolt passes through the through hole and the through hole and is threaded with a nut, which can fix the tool head and the locking block on the tool holder. The bolt and nut fixation can facilitate the disassembly and installation of the tool head.

[0016] Optionally, the tool holder has multiple grooves in the locking groove, and a locking spring is provided at the bottom of the locking block for insertion into the groove.

[0017] By adopting the above technical solution, when the user uses the device, the locking spring is inserted into the groove, and the tension of the locking spring is more firmly abutted against the inner wall of the locking block and the locking groove, thereby fixing the blade head more firmly.

[0018] Optionally, a clamping mechanism is provided on the side of the fixed frame near the worktable; the clamping mechanism includes a connecting plate connected to the fixed frame, and a clamping plate is connected to the bottom of the connecting plate, the bottom of the clamping plate being lower than the bottom of the tool holder.

[0019] By adopting the above technical solution, when the piston rod of the cylinder extends during use, it pushes the connecting plate and the pressing plate downward, so that the pressing plate abuts against the top of the steel plate and fixes the steel plate.

[0020] Optionally, a limiting groove is provided at the bottom of the connecting plate, and a guide post is fixedly connected to the top of the clamping plate. The guide post is slidably connected in the limiting groove, and a buffer spring is sleeved on the guide post. The two ends of the buffer spring are fixedly connected to the connecting plate and the clamping plate respectively.

[0021] By adopting the above technical solution, when the hydraulic cylinder pushes the connecting plate and the pressing plate downward, the pressing spring plays a buffering role on the pressing plate and can also elastically press the steel plate. When the piston rod of the hydraulic cylinder retracts, the tension of the buffer spring facilitates the reset of the connecting plate.

[0022] Optionally, multiple sliders are fixedly connected to the side of the clamping plate near the tool holder, and the tool holder has a sliding groove, in which the sliders slide and are connected.

[0023] By adopting the above technical solution, when the pressure plate slides down, the slider slides in the groove, which guides and limits the downward movement of the pressure plate. When the tool holder rotates to one side, the slider disengages from the groove and does not interfere with the upward tilting of the tool holder.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. A guide plate is provided with a vertically arranged guide groove and a sliding groove. The sliding groove is inclined upward from the bottom of the guide groove. A reset groove is provided on the top of the sliding groove on the guide plate. The two ends of the reset groove are connected to the top of the sliding groove and the guide groove, respectively. The sliding groove, reset groove and guide groove are connected end to end in sequence. Limiting posts are fixedly connected to both sides of the tool holder perpendicular to the loading direction of the worktable. The limiting posts are slidably connected in the guide groove, the sliding groove and the reset groove. A connecting rod 1 is hinged to the fixed frame. A connecting rod 2 is hinged to the end of the connecting rod 1 away from the fixed frame. The end of the connecting rod 2 away from the connecting rod 1 is hinged to the tool holder. The piston rod of the hydraulic cylinder retracts, causing the fixed frame to slide upward. The fixed frame pulls the tool holder to tilt to one side of the connecting rod 1 through the connecting rod 1 and the connecting rod 2, so that the limiting post on the tool holder slides into the sliding groove, thereby pulling the tool holder to tilt upward and retract, so that the tool head moves away from the steel plate during the upward retraction process, reducing the friction between the steel plate and the tool head. 2. By fixing the cutter head and the cutter holder with bolts, it is easy to replace the cutter head regularly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is an exploded view of the punching mechanism and the clamping mechanism; Figure 4 This is a cross-sectional view of the punching mechanism and the clamping mechanism; Figure 5 It is an exploded view of the mounting bracket, tool holder, and clamping mechanism; Figure 6 It is a sectional view of the fixing frame, the tool holder, and the clamping mechanism.

[0026] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Worktable; 12. Limiting plate; 13. Guide plate; 131. Guide groove; 132. Sliding groove; 133. Reset groove; 2. Punching mechanism; 21. Hydraulic cylinder; 22. Fixing frame; 221. Receiving groove; 2211. Guide slope; 222. Positioning pin; 223. Reset spring; 224. Link 1; 225. Link 2; 23. Tool holder; 231. Positioning sleeve 232. Limiting post; 233. Limiting block; 234. Sliding inclined surface; 235. Slot; 236. Locking groove; 237. Through hole; 238. Groove; 239. Slide groove; 24. Cutting head; 241. Locking block; 242. Through hole; 243. Locking spring; 3. Pressing mechanism; 31. Connecting plate; 32. Pressing plate; 33. Limiting groove; 34. Guide post; 35. Buffer spring; 36. Slider. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a steel plate shearing machine, referring to... Figure 1 It includes a frame 1, which is a gantry frame. A worktable 11 is installed on the frame 1. The worktable 11 is horizontally positioned. A punching mechanism 2 is installed on the frame 1 for shearing the steel plate on the worktable 11.

[0029] The punching mechanism 2 includes a hydraulic cylinder 21 fixedly connected to the frame 1. The hydraulic cylinder 21 is vertically arranged, and the cylinder body of the hydraulic cylinder 21 is fixedly connected to the top of the frame 1. The piston rod of the hydraulic cylinder 21 extends downward into the frame 1 and is fixedly connected to a fixed frame 22. Two limiting plates 12 are provided on the frame 1. The limiting plates 12 are bolted to the frame 1. The limiting plates 12 are perpendicular to the feeding direction of the worktable 11. The limiting plates 12 are located on both sides of the fixed frame 22 and play a role in limiting the vertical movement of the fixed frame 22. The fixed frame 22 has a receiving groove 221, and a knife holder 23 is installed in the receiving groove 221. The bottom of the knife holder 23 is connected to the knife head 24, and the two ends of the knife holder 23 are hinged to the positioning sleeves 231. The fixed frame 22 is hinged to the positioning post 222, and the end of the positioning post 222 is fixedly connected to the return spring 223. The end of the return spring 223 is fixedly connected to the inner bottom wall of the positioning sleeve 231. When the piston rod of the oil cylinder 21 extends, it pushes the fixed frame 22 and the knife holder 23 to move downward. The fixed frame 22 compresses the return spring 223 downward, pushing the knife head 24 downward to punch and shear the steel plate on the worktable 11.

[0030] Guide plates 13 are fixedly connected to the symmetrical sides of the inner wall of the frame 1. Guide grooves 131 are formed on the guide plates 13, which are vertically arranged. Sliding grooves 132 are formed on the guide plates 13, which are inclined and inclined upward from the bottom of the guide grooves 131. The bottoms of the sliding grooves 132 and the guide grooves 131 are connected. A reset groove 133 is formed on the top of the sliding grooves 132 on the guide plates 13. The two ends of the reset groove 133 are connected to the tops of the sliding grooves 132 and the guide grooves 131, respectively. The sliding groove 132, the reset groove 133, and the guide groove 131 are connected end to end in sequence to form a triangle. The tool holder 23 is fixedly connected to two sides perpendicular to the feeding direction of the worktable 11 with limit posts 232. The end of the limit post 232 is fixedly connected to a limit block 233. The limit post 232 is inserted into the guide groove 131 and can slide in the guide groove 131, the sliding groove 132, and the reset groove 133. The limit block 233 is used to prevent the limit post 232 from disengaging from the guide groove 131, the sliding groove 132, and the reset groove 133.

[0031] To prevent friction between the vertical movement of the cutter head 24 and the steel plate during its upward retraction, a connecting rod 224 is hinged to the side of the fixed frame 22 away from the worktable 11. A connecting rod 225 is hinged to the end of the connecting rod 224 away from the fixed frame 22, and the end of the connecting rod 225 away from the connecting rod 224 is hinged to the tool holder 23. After the cutter head 24 finishes cutting, the piston rod of the hydraulic cylinder 21 retracts, causing the fixed frame 22 to slide upward. The fixed frame 22 pulls the tool holder 23 towards the side of the connecting rod 224 through the connecting rod 224 and the connecting rod 225. At this time, the elastic force of the return spring 223 pushes the tool holder 23 to move. The connecting rod 224, the connecting rod 225, and the return spring 223 work together to make the limiting post 232 on the tool holder 23 slide into the sliding groove 132, thereby pulling the tool holder 23 to tilt upward and retract, so that the cutter head 24 moves away from the steel plate during its upward retraction, reducing the friction between the steel plate and the cutter head 24.

[0032] A guide slope 2211 is provided on the inner wall of the receiving groove 221 near the connecting rod 224. A sliding slope 234 that cooperates with the guide slope 2211 is provided on the tool holder 23. When the limiting post 232 on the tool holder 23 slides upward along the sliding groove 132 to the end, the return spring 223 is stretched to its maximum. The tension of the return spring 223 pulls the tool holder 23 to continue sliding upward, causing the sliding slope 234 of the tool holder 23 to slide upward along the guide slope 2211. The limiting post 232 on the 23 slides from the sliding groove 132 into the reset groove 133, and finally slides to the top of the guide groove 131. When the tool holder 23 cuts downward, the tool holder 23 drives the cutter head 24 to cut vertically downward. When the tool holder 23 drives the cutter head 24 to reset upward, it slides obliquely upward along the sliding groove 132 and the reset groove 133. In the process of moving upward, the cutter head 24 moves away from the steel plate during the upward retraction, reducing the friction between the steel plate and the cutter head 24.

[0033] A locking block 241 is fixedly connected to the cutter head 24. The tool holder 23 has a slot 235 and a locking groove 236. The slot 235 is used for inserting the cutter head 24, and the locking groove 236 is used for inserting the locking block 241. The tool holder 23 has multiple through holes 237. The cutter head 24 and the locking block 241 have through holes 242. After the bolt passes through the through hole 242 and the through hole 237, a nut is threaded onto it, which can fix the cutter head 24 and the locking block 241 to the tool holder 23. The bolt and nut fixation can facilitate the disassembly and installation of the cutter head 24. The tool holder 23 has multiple grooves 238 in the locking groove 236. A locking spring 243 is provided at the bottom of the locking block 241. The locking spring 243 is inserted into the groove 238. The tension of the locking spring 243 is more firmly abutted by the inner wall of the locking block 241 and the locking groove 236, thereby fixing the tool head 24 more firmly.

[0034] A clamping mechanism 3 is provided on the side of the fixed frame 22 near the workbench 11. The clamping mechanism 3 is used to fix the steel plate and prevent the steel plate from shaking during the shearing process. The clamping mechanism 3 includes a connecting plate 31 bolted to the fixing frame 22. A clamping plate 32 is connected to the bottom of the connecting plate 31. The clamping plate 32 is L-shaped and is used to abut against the top of the steel plate. The bottom of the clamping plate 32 is lower than the bottom of the knife holder 23. Multiple limiting grooves 33 are opened at the bottom of the connecting plate 31. Multiple guide posts 34 are fixedly connected to the top of the clamping plate 32. The guide posts 34 are slidably connected in the limiting grooves 33. A limiting plate is fixedly connected to the end of the guide post 34. The diameter of the limiting plate is larger than the diameter of the guide post 34. The limiting plate is used to prevent the guide post 34 from separating from the limiting groove 33. A buffer spring 35 is sleeved on the guide post 34. The two ends of the buffer spring 35 are fixedly connected to the connecting plate 31 and the clamping plate 32 respectively. The buffer spring 35 is used to elastically clamp the steel plate. At the same time, the clamping spring plays a buffering role on the clamping plate 32. Multiple sliders 36 are fixedly connected to the side of the clamping plate 32 near the tool holder 23. Multiple grooves 239 are provided on the tool holder 23, and the sliders 36 are slidably connected in the grooves 239.

[0035] The implementation principle of a steel plate shearing machine according to an embodiment of this application is as follows: When shearing the steel plate, the piston rod of the hydraulic cylinder extends, pushing the fixed frame 22 downward. The fixed frame 22 pushes the connecting plate 31 and the pressing plate 32 downward. The pressing plate 32 presses against the top of the steel plate to fix the steel plate. At the same time, the fixed frame 22 continues to move downward, compressing the return spring 223. When the return spring 223 is compressed to its maximum limit, it pushes the blade holder 23 downward, and the blade head 24 shears the steel plate. The limiting post 232 and the limiting block 233 slide vertically downward in the guide groove 131. After shearing is completed, the piston rod of the hydraulic cylinder 21 retracts, causing the fixed frame 22 to slide upward. The fixed frame 22 pulls the blade holder 23 to tilt to one side of the connecting rod 224 through the connecting rod 1 224 and the connecting rod 225. The elastic force of the return spring 223 pushes the tool holder 23 to move. The connecting rod 224, connecting rod 225 and the return spring 223 cooperate to make the limiting post 232 on the tool holder 23 slide into the sliding groove 132, thereby pulling the tool holder 23 to tilt upward and retract, so that the cutter head 24 moves away from the steel plate during the upward retraction, reducing the friction between the steel plate and the cutter head 24. When the limiting post 232 on the tool holder 23 slides upward along the sliding groove 132 to the end, the return spring 223 is stretched to the maximum. The tension of the return spring 223 pulls the tool holder 23 to continue to slide upward, so that the sliding slope 234 of the tool holder 23 slides upward along the guide slope 2211. The limiting post 232 on the tool holder 23 slides from the sliding groove 132 into the return groove 133, and finally slides to the top of the guide groove 131, preparing for the next punching reset. When the blade holder 23 cuts downwards, it drives the blade head 24 to cut vertically downwards along the guide groove 131. When the blade holder 23 drives the blade head 24 to return to its original position, it slides obliquely upwards along the sliding groove 132 and the return groove 133. As it moves upwards, the blade head 24 moves away from the steel plate during its upward retraction, reducing the friction between the steel plate and the blade head 24.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel plate shearing machine, characterized in that: The machine includes a frame (1), a worktable (11) is provided on the frame (1), and a punching mechanism (2) is provided on the frame (1). The punching mechanism (2) includes a hydraulic cylinder (21) fixedly connected to the frame (1). The hydraulic cylinder (21) is vertically arranged. The piston rod of the hydraulic cylinder (21) extends downward into the frame (1) and is fixedly connected to a fixed frame (22). A receiving groove (221) is provided in the fixed frame (221). A knife holder (23) is provided in the receiving groove (221). A knife head (24) is detachably connected to the bottom of the knife holder (23). A hinge telescopic assembly is provided at both ends of the knife holder (23) and the fixed frame (22). The hinge telescopic assembly is used to make the knife holder (23) rotate and extend around the fixed frame (22). Guide plates (13) are fixedly connected to the two symmetrical sides of the inner wall of the frame (1). The guide plates (13) are provided with vertically arranged guide grooves (131) and sliding grooves (132). The sliding grooves (132) are inclined upward from the bottom of the guide grooves (131). The guide plates (13) are provided with reset grooves (133) at the top of the sliding grooves (132). The two ends of the reset grooves (133) are connected to the top of the sliding grooves (132) and the guide grooves (131) respectively. The sliding grooves (132), reset grooves (133) and guide grooves (131) are connected end to end in sequence. The tool holder (23) is fixedly connected to two sides perpendicular to the feeding direction of the worktable (11) with limit posts (232). The limit posts (232) are slidably connected in the guide groove (131), the sliding groove (132) and the reset groove (133). The fixed frame (22) is provided with a connecting rod assembly. When the piston rod of the oil cylinder (21) retracts, the fixed frame (22) drives the tool holder (23) to rotate around the hinge telescopic assembly through the connecting rod assembly.

2. The steel plate shearing machine according to claim 1, characterized in that: The linkage assembly includes a first linkage (224) hinged to the side wall of the fixed frame (22), a second linkage (225) hinged to the end of the first linkage (224) away from the fixed frame (22), and the end of the second linkage (225) away from the first linkage (224) hinged to the tool holder (23).

3. A steel plate shearing machine according to claim 1, characterized in that: The hinged telescopic assembly includes positioning sleeves (231) hinged to both ends of the tool holder (23), a positioning post (222) hinged on the fixing frame (22), a return spring (223) fixedly connected to the end of the positioning post (222), and the end of the return spring (223) fixedly connected to the inner bottom wall of the positioning sleeve (231).

4. A steel plate shearing machine according to claim 2, characterized in that: The inner wall of the receiving groove (221) near the connecting rod (224) is provided with a guide slope (2211), and the tool holder (23) is provided with a sliding slope (234) that cooperates with the guide slope (2211).

5. A plate shearing machine as claimed in claim 1 wherein: A locking block (241) is fixedly connected to the cutting head (24). A slot (235) and a locking groove (236) are provided on the tool holder (23). The slot (235) is used for the cutting head (24) to be inserted, and the locking groove (236) is used for the locking block (241) to be inserted. Multiple through holes (237) are provided on the tool holder (23). Through holes (242) are provided on the cutting head (24) and the locking block (241). A bolt passes through the through hole (242) and the through hole (237) and is threaded to a nut.

6. A steel plate shearing machine according to claim 5, characterized in that: The tool holder (23) has multiple grooves (238) in the locking groove (236), and a locking spring (243) is provided at the bottom of the locking block (241). The locking spring (243) is used to be inserted into the groove (238).

7. A steel plate shearing machine according to claim 1, characterized in that: The fixing frame (22) is provided with a clamping mechanism (3) on the side near the workbench (11); The clamping mechanism (3) includes a connecting plate (31) connected to the fixed frame (22), and a clamping plate (32) is connected to the bottom of the connecting plate (31). The bottom of the clamping plate (32) is lower than the bottom of the knife holder (23).

8. A plate shearing machine as claimed in claim 7 wherein: The bottom of the connecting plate (31) has a limiting groove (33), and the top of the pressing plate (32) is fixedly connected to a guide post (34). The guide post (34) is slidably connected in the limiting groove (33), and a buffer spring (35) is sleeved on the guide post (34). The two ends of the buffer spring (35) are fixedly connected to the connecting plate (31) and the pressing plate (32) respectively.

9. A steel plate shearing machine according to claim 7, characterized in that: The clamping plate (32) is fixedly connected to a number of sliders (36) on the side near the tool holder (23). The tool holder (23) has a groove (239) and the sliders (36) are slidably connected in the groove (239).

Images