A numerically controlled cutting machine

Abstract

The present invention relates to the technical field of numerical control cutting of metal sheets, and specifically relates to a numerical control cutting machine, which includes a base. A first hydraulic cylinder is fixedly connected to the top of the front side of the base. Through the cutting mechanism, the four corners of the metal sheet are integrally cut, eliminating the need for multiple positioning cuts. During cutting, the supporting and discharging mechanism supports the metal sheet from the bottom. After cutting, as the unlocking rod moves downward, the locking of the fixed locking component and the movable locking component is released. As the pressing ring on the unlocking rod presses downward, it drives the downward movement of the movable supporting component, synchronously driving the automatic flipping of the flipping plate, realizing the automatic discharge of the cut corner materials. The linkage clamping mechanism synchronously centers and clamps the four sides of the metal sheet, achieving the primary clamping of the metal sheet. The pressing block in the distance adjustment mechanism presses and fixes the metal sheet from top to bottom, realizing the secondary fixation of the sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control cutting of metal plates, and specifically to a numerical control cutting machine. Background Technique

[0002] Metal plates are materials widely used in fields such as construction, manufacturing, and decoration. They are made of various different metals, including but not limited to steel, aluminum, copper, zinc, and stainless steel, etc. Metal plates are applied to different fields according to different materials and uses. The sieve frames made of metal plates are as attached Figure 14 shown. The plate itself for making the sieve frame is relatively thin, with a thickness between 0.5 mm and 3 mm. It is necessary to cut at the four corners of the plate to form a T-shaped groove, as attached Figure 15 shown. Subsequently, it is bent along the T-shaped groove into the outer shape of the sieve frame, and after bending, it is welded to make the sieve frame. Therefore, a numerical control cutting machine is needed for positioning and cutting. However, there are some problems in the positioning and cutting process of existing metal plates: 1. When cutting the plate into the shape as attached Figure 15 shown, it is usually cut by the way of punching and cutting with a tool from top to bottom. After cutting, waste corner materials will be generated, and the waste corner materials will accumulate on the working platform. Therefore, manual material discharging is required to prevent the corner materials from affecting the next cutting. Material discharging is required after each cutting, which reduces the cutting efficiency and increases the labor cost.

[0003] 2. During the positioning and cutting process of the plate, it is usually clamped by a fixture in a way of centering and clamping the four sides of the plate. Using this clamping method, the situation that the plate is clamped and lifted off the workbench will occur, reducing the clamping stability, thus affecting the cutting accuracy. After clamping, the four corners of the plate are cut in sequence. For multiple positioning and cutting, the cutting efficiency is low, and during each cutting, there is no effective limit and fixation between the tool and the workbench. Therefore, during the cutting process, the tool is prone to deflection, reducing the cutting quality, and the plate is relatively thin, so it is easy to deform during the cutting process. Summary of the Invention

[0004] The purpose of the present invention is to provide a numerical control cutting machine to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solutions: A numerical control cutting machine includes a base. At the top of the front side of the base, a first hydraulic cylinder is fixedly connected. At the top of the output end of the first hydraulic cylinder, a top plate is fixedly connected. A distance adjustment mechanism is provided at the bottom of the top plate. A cutting mechanism is provided at the rear side of the top of the top plate. Four support legs are evenly installed on the top of the base. A workbench is jointly provided at the top of the four support legs. A number of mounting holes are circumferentially and evenly formed on the workbench. A supporting and discharging mechanism is provided inside the mounting holes. The base, the workbench and the first hydraulic cylinder jointly form a linkage clamping mechanism; The linkage clamping mechanism includes a linkage component. The linkage component includes a bearing plate fixedly installed at the front side of the top of the base. A fixed shaft rotatably penetrates through the top of the bearing plate. A first straight gear is fixedly sleeved at the front end of the fixed shaft; The supporting and discharging mechanism includes limiting chutes symmetrically formed on the side walls of the mounting holes. A guiding slider is slidably connected inside the limiting chutes. An L-shaped supporting seat is fixedly connected between the two guiding sliders. A T-shaped groove is formed on the L-shaped supporting seat. An active supporting component is provided on the side of the L-shaped supporting seat away from the center of the workbench. A locking component is jointly provided between the active supporting component and the L-shaped supporting seat; The cutting mechanism includes a second hydraulic cylinder fixedly installed at the rear side of the top of the top plate. At the top of the output end of the second hydraulic cylinder, a second fixing plate is fixedly connected. A number of L-shaped telescopic rods are evenly installed on the circumferential outer wall of the second fixing plate. The bottom of the vertical section of the L-shaped telescopic rod is fixedly connected with a T-shaped cutter.

[0006] Preferably, a first bevel gear is fixedly connected to the rear end of the fixed shaft. A fixed sleeve rod is fixedly sleeved on the outer wall of the output end of the first hydraulic cylinder. A fixed rod is fixedly connected to the bottom of the horizontal section of the fixed sleeve rod. A rack meshing with the first straight gear is fixedly connected to the bottom of the fixed rod. The center of the bottom of the workbench is rotatably connected with a mounting rod. A second bevel gear meshing with the first bevel gear is fixedly connected to the bottom of the mounting rod. A first fixing plate is fixedly sleeved on the lower part of the mounting rod. A number of L-shaped rods are evenly and rotatably connected to the bottom of the first fixing plate. An adjusting component is provided at the end of the L-shaped rod away from the first fixing plate.

[0007] Preferably, a number of guiding chutes are circumferentially and evenly formed on the top of the workbench. A stop block is fixedly connected to the side of the guiding chute away from the center of the workbench. The adjusting component includes a clamping arm slidably connected inside the guiding chute. The bottom of the clamping arm is slidably connected with a guiding slide rail through a limiting slider. The side of the guiding slide rail close to the center of the base at the bottom is rotatably connected with the L-shaped rod. A second L-shaped plate is fixedly connected to the side wall of the lower end of the clamping arm. A locking nut block is fixedly connected to the vertical section of the second L-shaped plate. A locking screw is threadedly connected inside the locking nut block. The locking screw rotatably penetrates through the second L-shaped plate and then is rotatably connected with a pressing block. The pressing block is fixedly pressed against the side wall of the guiding slide rail. A buffer component is provided at the top of the side of the clamping arm close to the center of the workbench.

[0008] Preferably, the buffer assembly includes two threaded rods that are symmetrically arranged up and down and slidably penetrate through the top of the clamping arm. On the side of the two threaded rods close to the center of the workbench, a clamping plate is fixedly connected. A first spring is sleeved on the middle of the threaded rod, and the first spring is arranged between the clamping plate and the clamping arm. One end of the threaded rod away from the clamping plate is threadedly connected with a fastening nut, and the fastening nut is attached to the clamping arm.

[0009] Preferably, the movable support assembly includes two guide rods that slidably penetrate through the bottom of the side of the L-shaped support seat away from the center of the workbench. A movable support block is fixedly connected to the tops of the two guide rods. Second springs are sleeved on the peripheries of the two guide rods, and the second springs are arranged between the movable support block and the L-shaped support seat. A receiving groove is formed at the top of the movable support block, and a mounting shaft is fixedly connected to the side of the receiving groove away from the center of the workbench. A turning plate is rotatably connected to the middle of the mounting shaft through a coil spring. A backing plate is fixedly connected to the side of the receiving groove away from the mounting shaft. A guide groove is formed inside the movable support block near the backing plate. A mounting square rod is slidably connected up and down inside the guide groove. A first roller is rotatably connected to the top of the mounting square rod through a mounting seat. The bottom of the mounting square rod is fixedly connected to the center position of the bottom of the side of the L-shaped support seat away from the center of the workbench. A guide plate is fixedly connected to the bottom of the side of the L-shaped support seat away from the center of the workbench. A discharge chute is formed at the bottom of the mounting hole on the side away from the center of the workbench.

[0010] Preferably, the locking assembly includes fixed locking components symmetrically and fixedly installed on both sides of the movable support block parallel to the conveying direction of the limiting chute. The fixed locking component includes a movable locking block fixedly installed on the movable support block. A jack is formed at the center inside the movable locking block. Two movable locking components are symmetrically and fixedly connected to the L-shaped support seat parallel to the conveying direction of the limiting chute. A guiding inclined groove is formed at the top of the movable locking block in the direction close to the movable locking component. A first mounting groove is formed inside the movable locking block in the direction close to the movable locking component. A locking rod is slidably installed inside the first mounting groove. One end of the locking rod passes through the jack. The part of the locking rod inside the jack is an arc-shaped head. A first retaining ring is fixedly sleeved on the middle of the locking rod. A third spring is sleeved on the end of the locking rod close to the movable locking component. The third spring is arranged between the first retaining ring and the inner wall of the first mounting groove. The first retaining ring is slidably connected inside the first mounting groove.

[0011] Preferably, the movable locking component includes a fixed locking block fixedly installed on the L-shaped support seat. A second mounting groove is further formed inside the fixed locking block near the first mounting groove. A movable rod movably penetrates through the second mounting groove. One end of the movable rod is fixedly connected with a second roller, and the outer wall of the second roller is in contact with the other end of the locking rod. A second retaining ring is fixedly sleeved on the middle of the movable rod. A fourth spring is wound around the middle of the movable rod. The fourth spring is arranged between the second retaining ring and the second mounting groove.

[0012] Preferably, a first L-shaped plate is fixedly connected to the center of the top of the fixed locking block. A threaded block is fixedly connected to the center of the top of the first L-shaped plate. A positioning plug rod is threadedly connected to the center of the threaded block. The bottom of the positioning plug rod passes through the bottom of the first L-shaped plate. A plurality of positioning holes are evenly formed on both sides of the installation hole on the top of the workbench.

[0013] Preferably, two mounting plates are symmetrically and fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod. Unlocking rods are fixedly connected to the bottoms of the two mounting plates. A pressure ring is fixedly sleeved on the middle and lower part of the outer wall of the unlocking rod.

[0014] Preferably, the distance adjustment mechanism includes a fixed outer shell fixedly connected to the bottom of the top plate. A driving component is arranged at the bottom of the fixed outer shell. The driving component includes a plurality of limiting slideways evenly formed at the bottom of the fixed outer shell. A movable block is slidably connected inside the limiting slideway. A toothed disc is rotatably connected inside the fixed outer shell. A servo motor is fixedly connected to the outer side wall of the fixed outer shell. The output end of the servo motor rotatably penetrates through the fixed outer shell and is sleeved and fixed with a second straight gear. A ring gear meshing with the second straight gear is fixedly connected to the periphery of the top of the toothed disc. The bottom of the toothed disc meshes with the top of the movable block. A movable arm is fixedly connected to the side of the movable block away from the fixed outer shell. A limiting head is fixedly connected to one end of the movable arm. A limiting groove for vertically limiting the T-shaped tool is formed in the center of the limiting head. Two pressing blocks for pressing and fixing the metal plate are symmetrically and fixedly connected to the bottom of the limiting head. A limiting rod is fixedly connected to the top of the limiting head. A limiting block is slidably connected to the upper part of the limiting rod. The limiting block is fixedly connected to the outer wall of the vertical section of the L-shaped telescopic rod close to the fixed outer shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the contraction of the output end of the first hydraulic cylinder drives the linkage clamping mechanism to synchronously perform centering positioning and clamping on the four sides of the metal plate, realizing the primary clamping of the metal plate. As the first hydraulic cylinder contracts, the pressing block in the distance adjustment mechanism is used to press and fix the metal plate from top to bottom, realizing the secondary fixing of the plate, improving the stability of the positioning and clamping of the plate, and realizing that the contraction of the first hydraulic cylinder synchronously drives the downward movement of the distance adjustment mechanism and the cutting mechanism.

[0016] 2. In the present invention, the cutting mechanism performs integrated blanking cutting on the four corners of the metal plate, without the need for multiple positioning cuts, with high working efficiency. During cutting, the supporting and discharging mechanism supports the metal plate at the bottom, avoiding the problem of cutting deformation. After the blanking cutting is completed, as the unlocking rod moves downward, the locking and fixing of the fixed locking component and the movable locking component are unlocked. Thus, as the pressure ring on the unlocking rod presses downward, the movable supporting component is driven to move downward, synchronously driving the automatic flipping of the flip plate, realizing the automatic discharge of the cut corner materials. When the cutting mechanism moves upward, the movable supporting component is automatically locked, without the need for manual discharging, with high working efficiency.

[0017] 3. When the T-shaped tool in the cutting mechanism of the present invention moves downward for cutting, the limiting rod and the limiting block limit the T-shaped tool, achieving the primary limit fixation of the T-shaped tool. Moreover, through the insertion and limitation of the unlocking rod on the T-shaped tool and the jack, the secondary limit fixation of the T-shaped tool is achieved, improving the stability of the T-shaped tool during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the first perspective of the partial structure of the present invention.

[0020] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of area A.

[0021] Figure 4 It is a schematic diagram of the second perspective of the partial structure of the present invention.

[0022] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of area B.

[0023] Figure 6 It is a three-dimensional view of the distance adjustment mechanism and the cutting mechanism of the present invention.

[0024] Figure 7 It is a partially sectional top view of the distance adjustment mechanism of the present invention.

[0025] Figure 8 It is a partially sectional bottom view of the distance adjustment mechanism of the present invention.

[0026] Figure 9 It is a three-dimensional view of the partial section of the supporting and discharging mechanism and the workbench of the present invention.

[0027] Figure 10 For the present invention Figure 9 The enlarged schematic diagram of area C.

[0028] Figure 11 It is a three-dimensional view of the supporting and discharging mechanism of the present invention.

[0029] Figure 12 It is a front sectional view of the locking component of the present invention.

[0030] Figure 13 It is a top view of the movable rod and the second roller of the present invention.

[0031] Figure 14 It is a schematic diagram of the sieve frame made of the metal sheet after cutting by the present invention.

[0032] Figure 15Schematic diagram after cutting the metal sheet of the present invention.

[0033] In the figure: 1, base; 2, linkage clamping mechanism; 21, adjustment component; 211, clamping arm; 212, guiding slide rail; 213, crimping block; 214, locking nut block; 215, locking screw; 216, second L-shaped plate; 22, buffer component; 221, threaded rod; 222, fastening nut; 223, first spring; 224, clamping plate; 23, linkage component; 231, fixed sleeve rod; 232, fixed rod; 233, rack; 234, fixed shaft; 235, first spur gear; 236, bearing plate; 237, first bevel gear; 238, second bevel gear; 24, L-shaped rod; 25, first fixing plate; 26, mounting rod; 3, supporting and discharging mechanism; 31, T-shaped groove; 32, L-shaped supporting seat; 33, guiding plate; 34, movable supporting component; 341, first roller; 342, guiding groove; 343, backing plate; 344, turning plate; 345, mounting shaft; 346, movable supporting block; 347, guiding rod; 348, second spring; 349, mounting square rod; 35, locking component; 351, fixed locking part; 3511, movable locking block; 3512, jack; 3513, first mounting groove; 3514, locking rod; 3515, first retaining ring; 3516, third spring; 3517, guiding inclined groove; 352, movable locking part; 3521, second retaining ring; 3522, movable rod; 3523, fixed locking block; 3524, second mounting groove; 3525, fourth spring; 3526, second roller; 36, limiting sliding groove; 37, guiding sliding block; 4, mounting hole; 5, workbench; 6, distance adjustment mechanism; 61, fixed housing; 62, driving component; 621, servo motor; 622, second spur gear; 623, movable arm; 624, limiting head; 625, pressing block; 626, ring gear; 627, movable block; 628, toothed disc; 629, limiting groove; 7, cutting mechanism; 71, second fixing plate; 72, L-shaped telescopic rod; 73, second hydraulic cylinder; 74, limiting rod; 75, limiting block; 76, mounting plate; 77, unlocking rod; 78, pressing ring; 79, T-shaped cutter; 8, top plate; 9, first hydraulic cylinder; 10, supporting leg; 11, positioning hole; 12, guiding sliding groove; 13, stop block; 14, positioning insertion rod; 15, first L-shaped plate; 16, discharging inclined groove; 17, threaded block. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 , a numerically controlled cutting machine, including a base 1. At the top of the front side of the base 1, a first hydraulic cylinder 9 is fixedly connected. At the top of the output end of the first hydraulic cylinder 9, a top plate 8 is fixedly connected. A distance adjusting mechanism 6 is arranged at the bottom of the top plate 8. A cutting mechanism 7 for cutting metal plates is arranged at the rear side of the top of the top plate 8. Four support legs 10 are evenly installed on the top of the base 1. A workbench 5 is jointly arranged at the top of the four support legs 10. A number of mounting holes 4 are circumferentially and evenly formed on the workbench 5. A supporting and discharging mechanism 3 for supporting and fixing the metal plate is arranged inside the mounting holes 4. The base 1, the workbench 5 and the first hydraulic cylinder 9 jointly set up a linkage clamping mechanism 2 for positioning and clamping the metal plate. During the use of the present invention, the linkage clamping mechanism 2 is used to position and clamp the four corners of the metal plate. The distance adjusting mechanism 6 is used to adjust the distance between the cutting mechanism 7 and the metal plate. The cutting mechanism 7 is used for integrally punching and cutting the four corners of the metal plate. The supporting and discharging mechanism 3 is used to support the cutting part of the metal plate.

[0036] Please refer to Figure 2 and Figure 3 , the linkage clamping mechanism 2 includes a linkage component 23. The linkage component 23 includes a bearing plate 236 fixedly installed on the front side of the top of the base 1. A fixed shaft 234 rotatably penetrates through the top of the bearing plate 236. A first straight gear 235 is fixedly sleeved at the front end of the fixed shaft 234. The rear end of the fixed shaft 234 is fixedly connected with a first bevel gear 237. A fixed sleeve rod 231 is fixedly sleeved on the outer wall of the output end of the first hydraulic cylinder 9. A fixed rod 232 is fixedly connected to the bottom of the horizontal section of the fixed sleeve rod 231. A rack 233 meshing with the first straight gear 235 is fixedly connected to the bottom of the fixed rod 232. The center of the bottom of the workbench 5 is rotatably connected with a mounting rod 26. A second bevel gear 238 meshing with the first bevel gear 237 is fixedly connected to the bottom of the mounting rod 26. A first fixing plate 25 is fixedly sleeved on the lower part of the mounting rod 26. A number of L-shaped rods 24 are evenly and rotatably connected to the bottom of the first fixing plate 25. An adjusting component 21 is arranged at one end of the L-shaped rod 24 away from the first fixing plate 25.

[0037] Please refer to Figure 2 , Figure 4 and Figure 5, a plurality of guiding sliding grooves 12 are evenly arranged circumferentially on the top of the workbench 5. A stop block 13 is fixedly connected to the side of the guiding sliding groove 12 away from the center of the workbench 5. The adjusting assembly 21 includes a clamping arm 211 slidably connected inside the guiding sliding groove 12. The bottom of the clamping arm 211 is slidably connected with a guiding slide rail 212 through a limiting slider. The bottom of the guiding slide rail 212 near the center of the base 1 is rotatably connected with an L-shaped rod 24. A second L-shaped plate 216 is fixedly connected to the side wall of the lower end of the clamping arm 211. A locking nut block 214 is fixedly connected to the vertical section of the second L-shaped plate 216. A locking screw 215 is threadedly connected inside the locking nut block 214. After the locking screw 215 rotates through the second L-shaped plate 216, it is rotatably connected with a pressing block 213. The pressing block 213 is press-fitted and fixed to the side wall of the guiding slide rail 212. A buffer assembly 22 is arranged at the top of the side of the clamping arm 211 close to the center of the workbench 5.

[0038] Please refer to Figure 1 and Figure 4 , the buffer assembly 22 includes two threaded rods 221 that are symmetrically arranged up and down and both slidably penetrate through the top of the clamping arm 211. A clamping plate 224 is fixedly connected to the side of the two threaded rods 221 close to the center of the workbench 5. A first spring 223 is sleeved on the middle of the threaded rod 221. The first spring 223 is arranged between the clamping plate 224 and the clamping arm 211. The end of the threaded rod 221 away from the clamping plate 224 is threadedly connected with a fastening nut 222. The fastening nut 222 is in contact with the clamping arm 211.

[0039] During the use of the linkage clamping mechanism 2, first, the metal plate to be processed is loaded onto the middle of the upper surface of the workbench 5. At this time, the first hydraulic cylinder 9 is started, and the output end of the first hydraulic cylinder 9 contracts, synchronously driving the fixed sleeve rod 231, the fixed rod 232 and the rack 233 thereon to move downward, and at the same time driving the first spur gear 235 to rotate, and then indirectly driving the second bevel gear 238 to rotate, and then synchronously driving the mounting rod 26 and the first fixing plate 25 thereon to rotate, and then synchronously driving the L-shaped rod 24 to rotate centrally, and at the same time driving the guiding slide rail 212 and the clamping arm 211 thereon to move centrally along the guiding sliding groove 12, so as to synchronously drive the buffer assembly 22 to move centrally, and use the buffer assembly 22 to perform centering positioning clamping on the four sides of the metal plate. By rotating the fastening nut 222, the threaded rod 221 is driven to move in a direction away from the center of the workbench 5, so that the first spring 223 remains taut, avoiding the problem of shaking during the clamping process using the clamping plate 224. After the processing is completed, the output end of the first hydraulic cylinder 9 extends, driving the linkage clamping mechanism 2 to release the clamping.

[0040] Please refer to Figure 1 and Figure 6, the cutting mechanism 7 includes a second hydraulic cylinder 73 fixedly installed at the rear side of the top of the top plate 8. The output end of the second hydraulic cylinder 73 is fixedly connected to a second fixing plate 71. A number of L-shaped telescopic rods 72 are evenly installed on the outer circumferential wall of the second fixing plate 71. The bottom of the vertical section of the L-shaped telescopic rod 72 is fixedly connected to a T-shaped cutter 79 for cutting metal sheets. The bottom of the vertical section of the L-shaped telescopic rod 72 is symmetrically and fixedly connected to two mounting plates 76. The bottom of both mounting plates 76 is fixedly connected to an unlocking rod 77. A pressure ring 78 is fixedly sleeved in the middle and lower part of the outer wall of the unlocking rod 77.

[0041] Please refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 , the distance adjustment mechanism 6 includes a fixed housing 61 fixedly connected to the bottom of the top plate 8. A driving component 62 is arranged at the bottom of the fixed housing 61. The driving component 62 includes a number of limit sliding grooves evenly opened at the bottom of the fixed housing 61. An active block 627 is slidably connected inside the limit sliding groove. A toothed disc 628 is rotatably connected inside the fixed housing 61. A servo motor 621 is fixedly connected to the outer side wall of the fixed housing 61. The output end of the servo motor 621 rotates through the fixed housing 61 and is sleeved and fixed with a second straight gear 622. A ring gear 626 engaged with the second straight gear 622 is fixedly connected to the outer periphery of the top of the toothed disc 628. The bottom of the toothed disc 628 is engaged with the top of the active block 627. One side of the active block 627 away from the fixed housing 61 is fixedly connected to an active arm 623. One end of the active arm 623 is fixedly connected to a limit head 624. A limit groove 629 for vertically limiting the T-shaped cutter 79 is opened at the center of the limit head 624. Two pressing blocks 625 for pressing and fixing the metal sheet are symmetrically and fixedly connected to the bottom of the limit head 624. A limit rod 74 is fixedly connected to the top of the limit head 624. A limit block 75 is slidably connected to the upper part of the limit rod 74. The limit block 75 is fixedly connected to the outer wall of the bottom of the vertical section of the L-shaped telescopic rod 72 close to the fixed housing 61.

[0042] During the use of the distance adjustment mechanism 6, when it is necessary to adjust the position of the cutting tool according to the size of the metal sheet, first start the servo motor 621. The output end of the servo motor 621 drives the second straight gear 622 to rotate, and then synchronously drives the ring gear 626 and the gear disk 628 to rotate. Then, it synchronously drives the moving block 627 at the bottom of the gear disk 628 to move centrically, and then synchronously drives the moving arm 623 and the limit head 624 thereon to move centrically. At the same time, it drives the limit rod 74 and the limit block 75 to move centrically, and then synchronously drives the L-shaped telescopic rod 72 and the T-shaped cutting tool 79 thereon to move centrically. Reverse the servo motor 621, and it drives the L-shaped telescopic rod 72 and the T-shaped cutting tool 79 thereon to move centrifugally. By the forward and reverse rotation of the servo motor 621, the position adjustment of the T-shaped cutting tool 79 is realized. At this time, as the output end of the first hydraulic cylinder 9 contracts, it synchronously drives the top plate 8 and the distance adjustment mechanism 6 and the cutting mechanism 7 thereon to move downward until the pressing block 625 in the distance adjustment mechanism 6 is pressed and fixed to the metal sheet, realizing the pressing and fixing of the metal sheet from top to bottom.

[0043] Please refer to Figure 1 、 Figure 9 、 Figure 10 and Figure 11 As shown in, the supporting and discharging mechanism 3 includes limiting sliding grooves 36 symmetrically opened on the side wall of the mounting hole 4. A guiding slider 37 is slidably connected inside the limiting sliding groove 36. A L-shaped supporting seat 32 is fixedly connected between the two guiding sliders 37. A T-shaped groove 31 is opened on the L-shaped supporting seat 32. An active supporting component 34 is arranged on the side of the L-shaped supporting seat 32 away from the center of the workbench 5. A locking component 35 is jointly arranged between the active supporting component 34 and the L-shaped supporting seat 32. The active supporting component 34 includes two guiding rods 347 slidably penetrating through the bottom of the side of the L-shaped supporting seat 32 away from the center of the workbench 5. An active supporting block 346 is fixedly connected to the tops of the two guiding rods 347. A second spring 348 is sleeved around the periphery of each of the two guiding rods 347. The second spring 348 is arranged between the active supporting block 346 and the L-shaped supporting seat 32. A receiving groove is opened on the top of the active supporting block 346, and a mounting shaft 345 is fixedly connected to the side of the receiving groove away from the center of the workbench 5. A turning plate 344 is rotatably connected to the middle of the mounting shaft 345 through a coil spring. A backing plate 343 is fixedly connected to the side of the receiving groove away from the mounting shaft 345. A guiding groove 342 is opened on the side of the active supporting block 346 close to the backing plate 343. A mounting square rod 349 is slidably connected up and down inside the guiding groove 342. The top of the mounting square rod 349 is rotatably connected to a first roller 341 through a mounting seat. The bottom of the mounting square rod 349 is fixedly connected to the center position of the bottom of the side of the L-shaped supporting seat 32 away from the center of the workbench 5. A guiding plate 33 is fixedly connected to the bottom of the side of the L-shaped supporting seat 32 away from the center of the workbench 5. An unloading inclined groove 16 is opened on the side of the bottom of the mounting hole 4 away from the center of the workbench 5.

[0044] Please refer to Figure 9 , Figure 12 and Figure 13 . The locking assembly 35 includes fixed locking components 351 symmetrically and fixedly installed on both sides of the movable supporting block 346 parallel to the conveying direction of the limiting sliding groove 36. The fixed locking component 351 includes a movable locking block 3511 fixedly installed on the movable supporting block 346. A jack 3512 is provided at the center inside the movable locking block 3511. Two movable locking components 352 are symmetrically and fixedly connected to the L-shaped supporting seat 32 parallel to the conveying direction of the limiting sliding groove 36. A guiding inclined groove 3517 is provided at the top of the movable locking block 3511 in the direction close to the movable locking component 352. A first installation groove 3513 is provided inside the movable locking block 3511 in the direction close to the movable locking component 352. A locking rod 3514 is slidably installed inside the first installation groove 3513. One end of the locking rod 3514 passes through the jack 3512. The part of the locking rod 3514 located inside the jack 3512 is an arc-shaped head. A first retaining ring 3515 is sleeved and fixed in the middle of the locking rod 3514. A third spring 3516 is sleeved on one end of the locking rod 3514 close to the movable locking component 352. The third spring 3516 is arranged between the first retaining ring 3515 and the inner wall of the first installation groove 3513. The first retaining ring 3515 is slidably connected inside the first installation groove 3513. The movable locking component 352 includes a fixed locking block 3523 fixedly installed on the L-shaped supporting seat 32, and further includes a second installation groove 3524 provided inside the fixed locking block 3523 at a position close to the first installation groove 3513. A movable rod 3522 movably penetrates through the second installation groove 3524. One end of the movable rod 3522 is fixedly connected to a second roller 3526, and the outer wall of the second roller 3526 is in contact with the other end of the locking rod 3514. A second retaining ring 3521 is sleeved and fixed in the middle of the movable rod 3522. A fourth spring 3525 is wound around the middle of the movable rod 3522. The fourth spring 3525 is arranged between the second retaining ring 3521 and the second installation groove 3524. The center of the top of the fixed locking block 3523 is fixedly connected to a first L-shaped plate 15. The center of the top of the first L-shaped plate 15 is fixedly connected to a threaded block 17. A positioning plug rod 14 is threadedly connected to the center of the threaded block 17. The bottom of the positioning plug rod 14 passes through the bottom of the first L-shaped plate 15. A plurality of positioning holes 11 are evenly provided on both sides of the installation hole 4 at the top of the workbench 5.

[0045] During the use of the supporting and blanking mechanism 3, after the pressing block 625 in the distance adjusting mechanism 6 presses and fixes the metal sheet, the output end of the second hydraulic cylinder 73 contracts at this time, driving the second fixing plate 71, the L-shaped telescopic rod 72 and the T-shaped cutter 79 to move downward, synchronously driving the mounting plate 76 and the unlocking rod 77 thereon to move downward. The limiting block 75 and the limiting rod 74 are used to keep the moving direction of the T-shaped cutter 79 and prevent shaking. The T-shaped cutter 79 is used to punch and cut the metal sheet. In the initial state, the locking assembly 35 is in a locked state, and there is a hard connection between the L-shaped supporting seat 32 and the movable supporting assembly 34. At this time, the bottom of the metal sheet is supported. After the punching and cutting are completed, the scraps remain on the top of the turning plate 344. As the unlocking rod 77 continues to press downward, the unlocking rod 77 is inserted into the jack 3512. The unlocking rod 77 squeezes the locking rod 3514 towards the fixed locking block 3523, synchronously driving the first retaining ring 3515 to move towards the fixed locking block 3523, compressing the third spring 3516. At this time, the second roller 3526 and the movable rod 3522 thereon are synchronously driven to move towards the fixed locking block 3523 until the second roller 3526 is completely retracted into the second mounting groove 3524. At this time, the movable rod 3522 releases the locking and fixing between the movable locking block 3511 and the fixed locking block 3523. At this time, as the unlocking rod 77 continues to press downward, it drives the pressing ring 78 to press downward, thereby driving the movable supporting block 346 and the guide rod 347 thereon to move downward, and simultaneously compressing the second spring 348. As the movable supporting block 346 moves downward, the first roller 341 drives the turning plate 344 to turn around the mounting shaft 345, thereby driving the scraps on the turning plate 344 to enter the guide plate 33 from the discharge chute 16. The guide plate 33 is used for automatic blanking, realizing the automatic blanking of the punching and cutting scraps, eliminating the need for manual blanking after each punching and cutting, with high work efficiency. At this time, under the elastic force of the fourth spring 3525, the second roller 3526 extends out of the second mounting groove 3524. After the blanking is completed, as the unlocking rod 77 rises, under the restoring force of the second spring 348, it drives the movable supporting block 346 to rise. At this time, under the guiding of the guiding inclined groove 3517, the second roller 3526 retracts into the second mounting groove 3524. At this time, as the movable locking block 3511 continues to move upward until the second mounting groove 3524 coincides with the first mounting groove 3513. At this time, under the elastic force of the fourth spring 3525, the movable rod 3522 and the second roller 3526 thereon are inserted into the first mounting groove 3513 again, realizing the re-locking between the movable locking block 3511 and the fixed locking block 3523. And at the same time, the turning plate 344 returns to the initial horizontal state under the action of the coil spring. When it is necessary to adjust the position of the supporting and blanking mechanism 3, rotate the positioning plug 14, turn the positioning plug 14 out of the positioning hole 11. At this time, slide the L-shaped supporting seat 32 and the movable supporting assembly 34 along the limiting chute 36. After sliding to the specified position,Reverse the positioning insertion rod 14 and insert and fix the positioning insertion rod 14 into the corresponding positioning hole 11 to realize the adjustment of the position of the supporting and discharging mechanism 3.

[0046] Working principle: During the use of the present invention, first place the metal sheet to be processed at the center of the top of the workbench 5. At this time, the output end of the first hydraulic cylinder 9 descends, driving the linkage clamping mechanism 2 to position and clamp the metal sheet. At the same time, it synchronously drives the top plate 8 and the distance adjustment mechanism 6 and the cutting mechanism 7 thereon to move downward. Use the distance adjustment mechanism 6 to press and fix the metal sheet from top to bottom. After positioning, use the cutting mechanism 7 to perform integrated synchronous blanking cutting on the four corners of the metal sheet. After the blanking cutting, as the cutting mechanism 7 continues to move downward, the locking component 35 in the supporting and discharging mechanism 3 unlocks the locking. At this time, the automatic discharging of the cut-off scraps after the blanking cutting is realized through the supporting and discharging mechanism 3. After the discharging is completed, the locking component 35 automatically locks, and then the linkage clamping mechanism 2 releases the clamping, and the processed metal sheet is taken off, realizing the automatic positioning and clamping of the metal sheet, the integrated blanking cutting of the four corners, and the automatic discharging.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A CNC cutting machine, comprising a base, characterized in that: The top of the front side of the base is fixedly connected to a No. 1 hydraulic cylinder, the top of the output end of the No. 1 hydraulic cylinder is fixedly connected to a top plate, the bottom of the top plate is provided with a distance adjustment mechanism, the rear side of the top of the top plate is provided with a cutting mechanism, four supporting legs are evenly installed on the top of the base, a workbench is commonly provided on the top of the four supporting legs, mounting holes are evenly opened in the circumferential direction of the workbench, a supporting and discharging mechanism is provided inside the mounting holes, and a linkage clamping mechanism is commonly provided on the base, the workbench and the No. 1 hydraulic cylinder; The linkage clamping mechanism includes a linkage assembly, which includes a bearing plate fixedly mounted on the top of the base, a fixed shaft rotatably penetrates the top of the bearing plate, and a first spur gear is sleeved and fixed at the front end of the fixed shaft; The supporting and discharging mechanism comprises a limiting slide groove symmetrically arranged on the side wall of the mounting hole, a guide slider is slidably connected in the limiting slide groove, an L-shaped supporting seat is fixedly connected between the two guide sliders, a T-shaped groove is arranged on the L-shaped supporting seat, a movable supporting assembly is arranged on the side of the L-shaped supporting seat away from the center of the workbench, and a locking assembly is arranged between the movable supporting assembly and the L-shaped supporting seat; The cutting mechanism comprises a No. 2 hydraulic cylinder fixedly mounted on the rear side of the top of the top plate, a No. 2 fixed plate fixedly connected to the top of the output end of the No. 2 hydraulic cylinder, an L-shaped telescopic rod evenly mounted on the circumferential outer wall of the No. 2 fixed plate, and a T-shaped cutter fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod; The movable supporting assembly comprises two guide rods that slide through the bottom of one side of the L-shaped supporting seat away from the center of the workbench, the tops of the two guide rods are jointly fixedly connected to a movable supporting block, the outer peripheries of the two guide rods are sleeved with No. 2 springs, the No. 2 springs are arranged between the movable supporting block and the L-shaped supporting seat, the top of the movable supporting block is provided with a receiving groove, and the side of the receiving groove away from the center of the workbench is fixedly connected to a mounting shaft, the middle of the mounting shaft is rotatably connected with a flip plate through a coil spring, the side of the accommodating groove away from the mounting shaft is fixedly connected with a pad, a guide groove is provided on the side of the movable supporting block close to the pad, the inside of the guide groove is slidably connected with an installing square rod, the top of the installing square rod is rotatably connected to a No. 1 roller through the installing seat, the bottom of the installing square rod is fixedly connected to the bottom center position of the L-shaped supporting seat away from the center of the workbench, the side of the bottom of the L-shaped supporting seat away from the center of the workbench is fixedly connected with a material guide plate, and the side of the bottom of the installing hole away from the center of the workbench is provided with a discharging chute.

2. A CNC cutting machine according to claim 1, characterized in that: The rear end of the fixed shaft is fixedly connected to a bevel gear No. 1, the outer wall of the output end of the No. 1 hydraulic cylinder is sleeved and fixed with a fixed sleeve rod, the bottom of the horizontal section of the fixed sleeve rod is fixedly connected with a fixed rod, the bottom of the fixed rod is fixedly connected with a rack meshing with the No. 1 spur gear, the bottom center of the workbench is rotatably connected with a mounting rod, the bottom of the mounting rod is fixedly connected with a No. 2 bevel gear meshing with the No. 1 bevel gear, the lower part of the mounting rod is sleeved and fixed with a fixed plate No. 1, the bottom of the fixed plate is evenly rotatably connected with a plurality of L-shaped rods, and an adjustment component is provided at the end of the L-shaped rod away from the No. 1 fixed plate.

3. A CNC cutting machine according to claim 2, characterized in that: A plurality of guide slots are evenly arranged on the top of the workbench in a circumferential direction, a stop block is fixedly connected to a side of the guide slot away from the center of the workbench, an adjusting component comprises a clamping arm slidably connected to the inside of the guide slot, the bottom of the clamping arm is slidably connected to a guide rail via a limit slider, the bottom of the guide rail is rotatably connected to the L-shaped rod on a side close to the center of the base, a No. 2 L-shaped plate is fixedly connected to the side wall at the lower end of the clamping arm, a locking nut block is fixedly connected to the vertical section of the No. 2 L-shaped plate, a locking screw is threadedly connected to the locking nut block, the locking screw is rotated to pass through the No. 2 L-shaped plate and then rotatably connected to a crimping block, the crimping block is crimped and fixed to the side wall of the guide rail, and a buffer component is arranged on the top of the side of the clamping arm close to the center of the workbench.

4. A CNC cutting machine according to claim 3, characterized in that: The buffer assembly includes two threaded rods which are symmetrical up and down and both slide through the top of the clamping arm. The two threaded rods are fixedly connected to a clamping plate on one side close to the center of the workbench. A No. 1 spring is sleeved on the middle part of the threaded rod, and the No. 1 spring is arranged between the clamping plate and the clamping arm. The end of the threaded rod away from the clamping plate is threadedly connected to a fastening nut, and the fastening nut fits the clamping arm.

5. A CNC cutting machine according to claim 1, characterized in that: The locking assembly includes fixed locking parts symmetrically fixedly installed on both sides of the movable supporting block parallel to the conveying direction of the limiting slide slot, the fixed locking parts include a movable locking block fixedly installed on the movable supporting block, a socket is opened in the center of the movable locking block, and the L-shaped supporting seat is symmetrically and fixedly connected with two movable locking parts parallel to the conveying direction of the limiting slide slot, a guide inclined groove is opened at the top of the movable locking block in the direction close to the movable locking part, a No. 1 mounting groove is opened in the movable locking block in the direction close to the movable locking part, a locking rod is slidably installed in the No. 1 mounting groove, one end of the locking rod passes through the socket, the part of the locking rod located inside the socket is an arc head, a No. 1 retaining ring is sleeved and fixed in the middle of the locking rod, and a No. 3 spring is sleeved on one end of the locking rod close to the movable locking part, the No. 3 spring is arranged between the No. 1 retaining ring and the inner wall of the No. 1 mounting groove, and the No. 1 retaining ring is slidably connected to the inside of the No. 1 mounting groove.

6. A CNC cutting machine according to claim 5, characterized in that: The movable locking component includes a fixed locking block fixedly installed on the L-shaped supporting seat, and also includes a No. 2 mounting groove opened inside the fixed locking block near the No. 1 mounting groove. A movable rod movably passes through the No. 2 mounting groove, one end of the movable rod is fixedly connected to a No. 2 roller, and the outer wall of the No. 2 roller is fitted with the other end of the locking rod, a No. 2 retaining ring is fixedly sleeved on the middle part of the movable rod, a No. 4 spring is wrapped around the middle part of the movable rod, and the No. 4 spring is arranged between the No. 2 retaining ring and the No. 2 mounting groove.

7. A CNC cutting machine according to claim 6, characterized in that: The top center of the fixed locking block is fixedly connected to an L-shaped plate No. 1, the top center of the No. 1 L-shaped plate is fixedly connected to a threaded block, the center of the threaded block is threadedly connected to a positioning rod, the bottom of the positioning rod passes through the bottom of the No. 1 L-shaped plate, and a plurality of positioning holes are evenly opened on both sides of the mounting hole on the top of the workbench.

8. A CNC cutting machine according to claim 1, characterized in that: The bottom of the vertical section of the L-shaped telescopic rod is symmetrically fixedly connected to two mounting plates, the bottoms of the two mounting plates are fixedly connected to unlocking rods, and the lower middle part of the outer wall of the unlocking rod is fixedly sleeved with a pressure ring.

9. A CNC cutting machine according to claim 1, characterized in that: The distance adjustment mechanism comprises a fixed shell fixedly connected to the bottom of the top plate, a driving assembly is arranged at the bottom of the fixed shell, the driving assembly comprises a plurality of limit slideways evenly arranged at the bottom of the fixed shell, a movable block is slidably connected inside the limit slideway, a toothed disc is rotatably connected inside the fixed shell, a servo motor is fixedly connected to the outer wall of the fixed shell, an output end of the servo motor rotates through the fixed shell and is sleeved and fixed with a No. 2 spur gear, a ring gear meshing with the No. 2 spur gear is fixedly connected to the outer periphery of the top of the toothed disc, the bottom of the toothed disc is meshed with the top of the movable block, a movable arm is fixedly connected to a side of the movable block away from the fixed shell, one end of the movable arm is fixedly connected to a limit head, a limit groove for limiting the upper and lower positions of the T-shaped tool is arranged in the center of the limit head, two pressing blocks for crimping and fixing the metal sheet are symmetrically fixedly connected to the bottom of the limit head, a limit rod is fixedly connected to the top of the limit head, a limit block is slidably connected to the upper part of the limit rod, and the limit block is fixedly connected to an outer wall of one side of the bottom of the vertical section of the L-shaped telescopic rod close to the fixed shell.

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