A CNC cutting machine

Abstract

The present invention relates to the technical field of CNC cutting of metal plates, and specifically to a CNC cutting machine, comprising a base, wherein a No. 1 hydraulic cylinder is fixedly connected to the top of the front side of the base. The present invention uses a cutting mechanism to cut the four corners of the metal plate in an integrated manner, without the need for multiple positioning and cutting, and a supporting and discharging mechanism supports the bottom of the metal plate during cutting. After the cutting is completed, as the unlocking rod moves downward, the locking and fixing of the fixed locking component and the movable locking component are released, and as the pressure ring on the unlocking rod is pressed downward, the movable supporting component is driven to move downward, and the automatic flipping of the flip plate is synchronously driven, thereby realizing the automatic discharge of the cut scraps. The four sides of the metal plate are synchronously centered, positioned and clamped by a linkage clamping mechanism, thereby realizing the primary clamping of the metal plate, and the metal plate is crimped and fixed from top to bottom by a pressure block in a distance adjustment mechanism, thereby realizing the secondary fixation of the plate.

Description

Technical Field

[0001] The invention relates to the technical field of CNC cutting of metal plates, in particular to a CNC cutting machine. Background Art

[0002] Metal sheet is a material widely used in construction, manufacturing, decoration and other fields. It is made of various metals, including but not limited to steel, aluminum, copper, zinc and stainless steel. Metal sheets are used in different fields according to their materials and uses. The screen frame made of metal sheets is shown in the attached Fig.14 As shown, the plate material of the screen frame is relatively thin, with a thickness between 0.5mm and 3mm. It is necessary to cut the four corners of the plate material to form T-shaped grooves, as shown in the attached figure. Fig.15 As shown, the sheet metal is then bent along the T-shaped groove into the shape of the screen frame, and then welded to form the screen frame, which requires a CNC cutting machine for positioning and cutting. However, there are some problems in the positioning and cutting process of the existing metal sheet metal: 1. When the sheet metal is cut into the shape of the screen frame as shown in the figure, the screen frame is welded to form the screen frame. Fig.15 When the shape shown is formed, it is usually cut by punching and cutting from top to bottom with a tool. After cutting, waste scraps will be generated, and the waste scraps will be accumulated on the work platform, so manual sorting is required to prevent the scraps from affecting the next cutting. Sorting is required after each cutting, which reduces the cutting efficiency and increases the labor cost.

[0003] 2. During the positioning and cutting process, the plate is usually clamped by a clamp on the four sides of the plate in a centering clamping manner. With this clamping method, the plate may be clamped off the workbench, reducing the stability of the clamping and thus affecting the cutting accuracy. After clamping, the four corners of the plate are cut in sequence, with multiple positioning cuts, and the cutting efficiency is low. In addition, there is no effective limit fixation between the tool and the workbench during each cutting, so that the tool is prone to deflection during the cutting process, reducing the cutting quality. In addition, the plate is relatively thin and is prone to deformation during the cutting process. Summary of the invention

[0004] The object of the present invention is to provide a numerically controlled cutting machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC cutting machine, comprising a base, a No. 1 hydraulic cylinder is fixedly connected to the top of the front side of the base, a top plate is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder, a distance adjustment mechanism is arranged at the bottom of the top plate, a cutting mechanism is arranged at the rear side of the top of the top plate, four supporting legs are evenly installed on the top of the base, a workbench is commonly arranged on the top of the four supporting legs, a plurality of mounting holes are evenly opened on the circumferential direction of the workbench, a supporting and discharging mechanism is arranged inside the mounting holes, a linkage clamping mechanism is commonly arranged on the base, the workbench and the No. 1 hydraulic cylinder; the linkage clamping mechanism comprises a linkage assembly, the linkage assembly comprises a bearing plate fixedly installed on the front side of the top of the base, a fixed Axle, the front end of the fixed shaft is sleeved and fixed with a No. 1 spur gear; the supporting and discharging mechanism includes a limiting slide groove symmetrically opened on the side wall of the mounting hole, a guide slider is slidably connected inside the limiting slide groove, an L-shaped supporting seat is fixedly connected between the two guide sliders, a T-shaped slot is opened 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 includes a No. 2 hydraulic cylinder fixedly installed on the rear side of the top of the top plate, a No. 2 fixed plate is fixedly connected to the top of the output end of the No. 2 hydraulic cylinder, a number of L-shaped telescopic rods are evenly installed on the circumferential outer wall of the No. 2 fixed plate, and a T-shaped tool is fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod.

[0006] Preferably, 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 to a fixed rod, the bottom of the fixed rod is fixedly connected to a rack meshing with the No. 1 spur gear, the bottom center of the workbench is rotatably connected to a mounting rod, the bottom of the mounting rod is fixedly connected to a No. 2 bevel gear meshing with the No. 1 bevel gear, the lower part of the mounting rod is sleeved and fixed to a fixed plate No. 1, the bottom of the fixed plate is evenly rotatably connected to a number 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.

[0007] Preferably, 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 the side of the guide slot away from the center of the workbench, the adjustment assembly includes a clamping arm slidably connected to the inside of the guide slot, the bottom of the clamping arm is slidably connected to the guide rail through a limit slider, the bottom of the guide rail is rotatably connected to the L-shaped rod on the side close to the center of the base, a No. 2 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 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 assembly is provided on 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 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 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.

[0009] Preferably, 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, a receiving groove is opened at the top of the movable supporting block, and the side of the receiving groove away from the center of the workbench is fixedly connected to the mounting shaft, the middle of the mounting shaft is rotatably connected to a flip plate through a coil spring, and a pad is fixedly connected to the side of the receiving groove away from the mounting shaft, a guide groove is opened on the side of the movable supporting block close to the pad, and an installation square rod is slidably connected to the inside of the guide groove, and the top of the installation square rod is rotatably connected to a No. 1 roller through the mounting seat, and the bottom of the installation 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 to the guide plate, and the side of the bottom of the mounting hole away from the center of the workbench is provided with a discharging chute.

[0010] Preferably, 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 two movable locking parts are symmetrically fixedly connected to the L-shaped supporting seat 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, and a No. 1 mounting groove is opened inside the movable locking block in the direction close to the movable locking part, a locking rod is slidably installed inside the No. 1 mounting groove, one end of the locking rod passes through the socket, and 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.

[0011] Preferably, the movable locking component includes a fixed locking block fixedly mounted 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, a No. 2 roller is fixedly connected to one end of the movable rod, 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.

[0012] Preferably, an L-shaped plate No. 1 is fixedly connected to the top center of the fixed locking block, a threaded block is fixedly connected to the top center of the L-shaped plate No. 1, a positioning rod is threadedly connected to the center of the threaded block, the bottom of the positioning rod passes through the bottom of the L-shaped plate No. 1, and a number of positioning holes are evenly opened on both sides of the mounting hole on the top of the workbench.

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

[0014] Preferably, the distance adjustment mechanism includes 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 includes a plurality of limit slides evenly arranged at the bottom of the fixed shell, a movable block is slidably connected inside the limit slide, 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.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention drives the linkage clamping mechanism to synchronously perform centering, positioning and clamping of the four sides of the metal plate through the contraction of the output end of the No. 1 hydraulic cylinder, thereby realizing the primary clamping of the metal plate. As the No. 1 hydraulic cylinder contracts, the pressure block in the distance adjustment mechanism is used to crimp and fix the metal plate from top to bottom, thereby realizing the secondary fixation of the plate, improving the stability of the positioning and clamping of the plate, and realizing the contraction of the No. 1 hydraulic cylinder to synchronously drive the distance adjustment mechanism and the cutting mechanism to move downward.

[0016] 2. The present invention uses a cutting mechanism to perform integrated punching and cutting on the four corners of the metal sheet, without the need for multiple positioning and cutting, and has high work efficiency. During cutting, the supporting and discharging mechanism supports the bottom of the metal sheet, avoiding the problem of cutting deformation. After the punching and cutting is completed, as the unlocking rod moves downward, the locking and fixing of the fixed locking component and the movable locking component are released, so that as the pressure ring on the unlocking rod is pressed downward, the movable supporting assembly is driven to move downward, and the flip plate is simultaneously driven to automatically flip over, thereby realizing automatic discharge of cut scraps. When the cutting mechanism moves upward, the movable supporting assembly is automatically locked, without the need for manual discharging, and has high work efficiency.

[0017] 3. When the T-shaped tool in the cutting mechanism of the present invention moves down for cutting, the limit rod and the limit block limit the T-shaped tool, thereby realizing the primary limit fixation of the T-shaped tool, and the secondary limit fixation of the T-shaped tool is realized through the plug-in limit of the unlocking rod and the socket on the T-shaped tool, thereby improving the stability of the T-shaped tool during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the local structure of the present invention from the first viewing angle.

[0020] Figure 3 For the present invention Figure 2 A magnified schematic diagram of area A in the middle.

[0021] Figure 4 It is a schematic diagram of the local structure of the present invention from a second viewing angle.

[0022] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of area B in the middle.

[0023] Figure 6 It is a stereoscopic diagram of the distance adjustment mechanism and the cutting mechanism of the present invention.

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

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

[0026] Fig. 9 It is a partially cutaway stereoscopic view of the supporting and discharging mechanism and the workbench of the present invention.

[0027] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of area C in the middle.

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

[0029] Fig.12 It is a front cross-sectional view of the locking assembly of the present invention.

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

[0031] Fig.14 It is a schematic diagram of a screen frame made by cutting a metal plate according to the present invention.

[0032] Fig.15It is a schematic diagram of the metal plate after cutting of the present invention.

[0033] In the figure: 1, base; 2, linkage clamping mechanism; 21, adjustment assembly; 211, clamping arm; 212, guide rail; 213, crimping block; 214, locking nut block; 215, locking screw; 216, No. 2 L-shaped plate; 22, buffer assembly; 221, threaded rod; 222, fastening nut; 223, No. 1 spring; 224, clamping plate; 23, linkage assembly; 231, fixed sleeve rod; 232, fixed rod; 233, rack; 234, fixed shaft; 235, No. 1 spur gear; 236, bearing plate; 237, No. 1 bevel gear; 238, No. 2 bevel gear; 24, L-shaped rod; 25, No. 1 fixed plate; 26, mounting rod; 3, supporting and discharging mechanism; 31, T-shaped slot; 32, L-shaped supporting seat; 33, guide plate; 34, movable supporting assembly; 341, No. 1 roller; 342, guide slot; 343, pad; 344, flip plate; 345, mounting shaft; 346, movable supporting block; 347, guide rod; 348, No. 2 spring; 349, mounting square rod; 35, locking assembly; 351, fixed locking component; 3511, movable locking block; 3512, socket; 3513, No. 1 mounting slot; 3514, locking rod; 3515, No. 1 retaining ring; 3516, No. 3 spring; 3517, guide inclined slot; 352, movable locking component; 3521, No. 2 retaining ring; 3522, movable rod; 3523, fixed locking block; 3524, No. 2 mounting slot; 3525, No. 4 spring; 3526, No. 2 roller; 36, limit slide slot; 37, guide slider; 4, mounting hole; 5, workbench; 6, distance adjustment mechanism; 61, fixed housing; 62, drive assembly; 621, servo motor; 622, No. 2 spur gear; 623, movable arm; 624, limit head; 625, pressure block; 626, ring gear; 627, movable block; 628, toothed disc; 629, limit slot; 7, cutting mechanism; 71, No. 2 fixed plate; 72, L-shaped telescopic rod; 73, No. 2 hydraulic cylinder; 74, limit rod; 75, limit block; 76, mounting plate; 77, unlocking rod; 78, pressure ring; 79, T-shaped tool; 8, top plate; 9, No. 1 hydraulic cylinder; 10, support leg; 11, positioning hole; 12, guide slide; 13, stop block; 14, positioning plug rod; 15, No. 1 L-shaped plate; 16, discharge chute; 17, threaded block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 , a CNC cutting machine comprises a base 1, a No. 1 hydraulic cylinder 9 is fixedly connected to the top of the front side of the base 1, a top plate 8 is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder 9, a distance adjustment mechanism 6 is arranged at the bottom of the top plate 8, and a cutting mechanism 7 for cutting metal sheets is arranged on the rear side of the top of the top plate 8. Four supporting legs 10 are evenly installed on the top of the base 1, and a workbench 5 is jointly arranged on the top of the four supporting legs 10. A plurality of mounting holes 4 are evenly opened on the workbench 5 in a circumferential direction, and a supporting and discharging mechanism 3 for supporting and fixing the metal sheets is arranged inside the mounting holes 4. The base 1, the workbench 5 and the No. 1 hydraulic cylinder 9 are jointly provided with a linkage clamping mechanism 2 for positioning and clamping the metal sheets. During use of the present invention, the linkage clamping mechanism 2 is used to position and clamp the metal sheets at the four corners, and the distance adjustment mechanism 6 is used to adjust the distance between the cutting mechanism 7 and the metal sheets. The cutting mechanism 7 is used to perform integrated punching and cutting on the four corners of the metal sheets, and the supporting and discharging mechanism 3 is used to support the cutting part of the metal sheets.

[0036] See also Figure 2 and Figure 3 The linkage clamping mechanism 2 includes a linkage component 23, which includes a bearing plate 236 fixedly installed on the front side of the top of the base 1. A fixed shaft 234 is rotatably passed through the top of the bearing plate 236. The front end of the fixed shaft 234 is sleeved and fixed with a No. 1 spur gear 235; the rear end of the fixed shaft 234 is fixedly connected with a No. 1 bevel gear 237. A fixed sleeve rod 231 is sleeved and fixed on the outer wall of the output end of the No. 1 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 No. 1 spur gear 235 is fixedly connected to the bottom of the fixed rod 232. A mounting rod 26 is rotatably connected to the bottom of the workbench 5. A No. 2 bevel gear 238 meshing with the No. 1 bevel gear 237 is fixedly connected to the bottom of the mounting rod 26. A No. 1 fixed plate 25 is sleeved and fixed to the lower part of the mounting rod 26. A plurality of L-shaped rods 24 are evenly rotatably connected to the bottom of the No. 1 fixed plate 25. An adjusting component 21 is provided at one end of the L-shaped rod 24 away from the No. 1 fixed plate 25.

[0037] See also Figure 2 , Figure 4 and Figure 5A plurality of guide grooves 12 are evenly arranged on the top of the workbench 5 in the circumferential direction, and a stopper 13 is fixedly connected to the side of the guide groove 12 away from the center of the workbench 5. The adjusting component 21 includes a clamping arm 211 slidably connected to the inside of the guide groove 12, and a guide rail 212 is slidably connected to the bottom of the clamping arm 211 through a limit slider, and the bottom of the guide rail 212 is rotatably connected to the L-shaped rod 24 on the side close to the center of the base 1, and a second L-shaped plate 216 is fixedly connected to the side wall of the lower end of the clamping arm 211, and a locking nut block 214 is fixedly connected to the vertical section of the second L-shaped plate 216, and a locking screw 215 is threadedly connected to the locking nut block 214. The locking screw 215 rotates through the second L-shaped plate 216 and then rotates to be connected to a crimping block 213, and the crimping block 213 is crimped and fixed to the side wall of the guide rail 212, and a buffer component 22 is arranged on the top of the side of the clamping arm 211 close to the center of the workbench 5.

[0038] See also Figure 1 and Figure 4 The buffer assembly 22 includes two threaded rods 221 which are symmetrical in the upper and lower parts and slide through the top of the clamping arm 211. The two threaded rods 221 are fixedly connected with a clamping plate 224 on one side close to the center of the workbench 5. A No. 1 spring 223 is sleeved on the middle part of the threaded rod 221. The No. 1 spring 223 is arranged between the clamping plate 224 and the clamping arm 211. A fastening nut 222 is threadedly connected to one end of the threaded rod 221 away from the clamping plate 224, and the fastening nut 222 fits with the clamping arm 211.

[0039] During the use of the linkage clamping mechanism 2, the metal sheet to be processed is first loaded onto the middle of the upper surface of the workbench 5. At this time, the No. 1 hydraulic cylinder 9 is started, and the output end of the No. 1 hydraulic cylinder 9 contracts, synchronously driving the fixed sleeve rod 231 and the fixed rod 232 and the rack 233 thereon to move downward, and at the same time driving the No. 1 spur gear 235 to rotate, and then indirectly driving the No. 2 bevel gear 238 to rotate, and then synchronously driving the mounting rod 26 and the No. 1 fixed plate 25 thereon to rotate, and then synchronously driving the L-shaped rod 24 to rotate in the center, and at the same time driving the guide rail 2 12 and the clamping arm 211 thereon move in a centering manner along the guide slide groove 12, thereby synchronously driving the buffer assembly 22 to move in a centering manner, and utilizing the buffer assembly 22 to perform centering positioning and clamping on the four sides of the metal sheet. 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 No. 1 spring 223 remains tensioned, avoiding the problem of shaking during the clamping process using the clamping plate 224. After the processing is completed, the output end of the No. 1 hydraulic cylinder 9 is extended, driving the linkage clamping mechanism 2 to release the clamping.

[0040] See also Figure 1 and Figure 6The cutting mechanism 7 includes a No. 2 hydraulic cylinder 73 fixedly mounted on the top rear side of the top plate 8, the output end of the No. 2 hydraulic cylinder 73 is fixedly connected to a No. 2 fixed plate 71, a plurality of L-shaped telescopic rods 72 are evenly mounted on the circumferential outer wall of the No. 2 fixed plate 71, a T-shaped tool 79 for cutting metal sheets is fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod 72, two mounting plates 76 are symmetrically fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod 72, unlocking rods 77 are fixedly connected to the bottom of the two mounting plates 76, and a pressure ring 78 is fixedly sleeved on the middle and lower part of the outer wall of the unlocking rod 77.

[0041] See also Figure 1 , Figure 6 , Figure 7 and Figure 8 The distance adjustment mechanism 6 includes a fixed shell 61 fixedly connected to the bottom of the top plate 8, a driving assembly 62 is arranged at the bottom of the fixed shell 61, and the driving assembly 62 includes a plurality of limit slides uniformly arranged at the bottom of the fixed shell 61, a movable block 627 is slidably connected inside the limit slide, a toothed disc 628 is rotatably connected inside the fixed shell 61, a servo motor 621 is fixedly connected to the outer wall of the fixed shell 61, and a second spur gear 622 is sleeved and fixed after the output end of the servo motor 621 rotates and penetrates the fixed shell 61, and a ring gear 626 meshing with the second spur gear 622 is fixedly connected to the outer periphery of the top of the toothed disc 628, and the toothed disc 628 The bottom is engaged with the top of the movable block 627. The movable arm 623 is fixedly connected to the side of the movable block 627 away from the fixed shell 61. One end of the movable arm 623 is fixedly connected to the limiting head 624. A limiting groove 629 is provided in the center of the limiting head 624 for limiting the T-shaped tool 79 up and down. Two pressing blocks 625 for crimping and fixing the metal sheet are symmetrically fixedly connected to the bottom of the limiting head 624. The limiting head 624 is fixedly connected to the limiting rod 74 at the top. The upper part of the limiting rod 74 is slidably connected to the limiting block 75. The limiting block 75 is fixedly connected to the outer wall of one side of the bottom of the vertical section of the L-shaped telescopic rod 72 close to the fixed shell 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 plate, the servo motor 621 is first started, and the output end of the servo motor 621 drives the second spur gear 622 to rotate, and then synchronously drives the ring gear 626 and the toothed disc 628 to rotate, and then synchronously drives the movable block 627 at the bottom of the toothed disc 628 to move in a centering manner, and then synchronously drives the movable arm 623 and the limit head 624 thereon to move in a centering manner, and at the same time drives the limit rod 74 and the limit block 75 to move in a centering manner, and then synchronously drives the L-shaped telescopic rod 72 and the T-shaped tool 79 thereon to move in a centering manner, and reverses the servo motor 621, which drives the L-shaped telescopic rod 72 and the T-shaped tool 79 thereon to move centrifugally, and the position adjustment of the T-shaped tool 79 is achieved by the forward and reverse rotation of the servo motor 621. At this time, as the output end of the No. 1 hydraulic cylinder 9 contracts, the top plate 8 and the distance adjustment mechanism 6 and the cutting mechanism 7 thereon are synchronously driven to move downward until the pressure block 625 in the distance adjustment mechanism 6 is crimped and fixed to the metal plate, thereby achieving the crimping and fixing of the plate from top to bottom.

[0043] See also Figure 1 , Fig. 9 , Fig.10 and Fig.11 The supporting and discharging mechanism 3 includes a limiting slide groove 36 symmetrically opened on the side wall of the mounting hole 4, a guide slider 37 is slidably connected inside the limiting slide groove 36, an L-shaped supporting seat 32 is fixedly connected between the two guide sliders 37, a T-shaped groove 31 is opened on the L-shaped supporting seat 32, a movable supporting assembly 34 is arranged on the side of the L-shaped supporting seat 32 away from the center of the workbench 5, a locking assembly 35 is arranged between the movable supporting assembly 34 and the L-shaped supporting seat 32, the movable supporting assembly 34 includes two guide rods 347 sliding through the bottom of the side of the L-shaped supporting seat 32 away from the center of the workbench 5, a movable supporting block 346 is fixedly connected to the top of the two guide rods 347, and the outer periphery of the two guide rods 347 is sleeved with a No. 2 spring 348, and the No. 2 spring 348 is arranged between the movable supporting block 346 and the L-shaped supporting seat 32 A receiving groove is provided on the top of the movable 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 flip plate 344 is rotatably connected to the middle of the mounting shaft 345 through a coil spring, and a pad 343 is fixedly connected to the side of the receiving groove away from the mounting shaft 345. A guide groove 342 is provided on the side of the movable supporting block 346 close to the pad 343. A mounting square rod 349 is slidably connected to the inside of the guide groove 342. The top of the mounting square rod 349 is rotatably connected to a No. 1 roller 341 through a mounting seat. The bottom of the mounting square rod 349 is fixedly connected to the bottom center position of the side of the L-shaped supporting seat 32 away from the center of the workbench 5. A material guide plate 33 is fixedly connected to the side of the bottom of the L-shaped supporting seat 32 away from the center of the workbench 5. A discharge chute 16 is provided on the side of the bottom of the mounting hole 4 away from the center of the workbench 5.

[0044] See also Fig. 9 , Fig.12 and Fig.13 The locking assembly 35 includes fixed locking components 351 symmetrically fixedly installed on both sides of the movable supporting block 346 parallel to the conveying direction of the limiting slide 36. The fixed locking component 351 includes a movable locking block 3511 fixedly installed on the movable supporting block 346. A plug hole 3512 is provided in the center of the movable locking block 3511. The L-shaped supporting seat 32 is symmetrically fixedly connected with two movable locking components 352 parallel to the conveying direction of the limiting slide 36. A guiding inclined groove 3517 is provided on the top of the movable locking block 3511 near the movable locking component 352. The movable locking block 3511 is provided with a No. 1 mounting groove 3513 in the direction close to the movable locking component 352, and a locking rod 3514 is slidably installed in the No. 1 mounting groove 3513, one end of the locking rod 3514 passes through the socket 3512, and the part of the locking rod 3514 located in the socket 3512 is an arc-shaped head, and a No. 1 retaining ring 3515 is sleeved and fixed in the middle of the locking rod 3514, and a No. 3 spring 3516 is sleeved on one end of the locking rod 3514 close to the movable locking component 352, and the No. 3 spring 3516 is arranged between the No. 1 retaining ring 3515 and the No. 1 mounting groove 3513. The first retaining ring 3515 is slidably connected to the inside of the first mounting groove 3513 between the inner walls of the groove 3513, and the movable locking component 352 includes a fixed locking block 3523 fixedly installed on the L-shaped supporting seat 32, and also includes a second mounting groove 3524 opened inside the fixed locking block 3523 near the position of the first mounting groove 3513, and a movable rod 3522 is movably penetrated inside the second mounting groove 3524, and one end of the movable rod 3522 is fixedly connected to the second roller 3526, and the outer wall of the second roller 3526 is in contact with the other end of the locking rod 3514, and the movable rod 3522 is fixedly connected to the second roller 3526. A No. 2 retaining ring 3521 is sleeved and fixed on the middle part of 522, a No. 4 spring 3525 is wound around the middle part of the movable rod 3522, the No. 4 spring 3525 is arranged between the No. 2 retaining ring 3521 and the No. 2 mounting groove 3524, a No. 1 L-shaped plate 15 is fixedly connected to the top center of the fixed locking block 3523, a threaded block 17 is fixedly connected to the top center of the No. 1 L-shaped plate 15, a positioning rod 14 is threadedly connected to the center of the threaded block 17, the bottom of the positioning rod 14 passes through the bottom of the No. 1 L-shaped plate 15, and a plurality of positioning holes 11 are evenly opened on both sides of the mounting hole 4 at the top of the workbench 5.

[0045] During the use of the supporting and discharging mechanism 3, when the pressure block 625 in the distance adjustment mechanism 6 presses and fixes the metal sheet, the output end of the No. 2 hydraulic cylinder 73 contracts, driving the No. 2 fixed plate 71, the L-shaped telescopic rod 72 and the T-shaped tool 79 to move downward, and simultaneously driving the mounting plate 76 and the unlocking rod 77 thereon to move downward. The limit block 75 and the limit rod 74 are used to maintain the movement direction of the T-shaped tool 79 to avoid shaking. The T-shaped tool 79 is used to punch and cut the metal sheet. In the initial state, the locking assembly 35 is in a locked state, and the L-shaped supporting seat 32 and the movable supporting assembly 34 are hard-connected. At this time, the bottom of the metal sheet is supported. After the punching and cutting is completed, the scraps are left on the top of the flip plate 344. As the unlocking rod 77 is released, the metal sheet is punched and cut. With continued downward pressure, the unlocking rod 77 is inserted into the insertion hole 3512, and the unlocking rod 77 squeezes the locking rod 3514 toward the fixed locking block 3523, thereby simultaneously driving the No. 1 retaining ring 3515 to move toward the fixed locking block 3523, compressing the No. 3 spring 3516, and at this time synchronously driving the No. 2 roller 3526 and the movable rod 3522 thereon to move toward the fixed locking block 3523 until the No. 2 roller 3526 is completely retracted into the No. 2 mounting groove 3524. At this time, the movable rod 3522 releases the locking fixation between the movable locking block 3511 and the fixed locking block 3523. At this time, as the unlocking rod 77 is continuously pressed downward, the pressing ring 78 is driven to press downward, thereby driving the movable supporting block 346 and the guide rod 347 thereon to move downward, and at the same time pressing The second spring 348 is retracted. With the downward movement of the movable support block 346, the first roller 341 drives the flip plate 344 to flip around the mounting shaft 345, thereby driving the flip plate 344 and the scraps thereon to enter the guide plate 33 from the discharge chute 16. The guide plate 33 is used for automatic discharge, thereby realizing the automatic discharge of the blanking and cutting scraps, and no manual discharge is required after each blanking and cutting, which has high work efficiency. At this time, under the elastic force of the fourth spring 3525, the second roller 3526 extends out from the second mounting groove 3524. After the discharge is completed, with the rise of the unlocking rod 77, the movable support block 346 is driven to rise under the action of the restoring force of the second spring 348. At this time, under the guidance of the guide chute 3517, the second roller 3526 is retracted. When the movable locking block 3511 is in the No. 2 mounting groove 3524, the movable locking block 3511 continues to move upward until the No. 2 mounting groove 3524 coincides with the No. 1 mounting groove 3513. At this time, under the elastic force of the No. 4 spring 3525, the movable rod 3522 and the No. 2 roller 3526 thereon are reinserted into the No. 1 mounting groove 3513, realizing the re-locking between the movable locking block 3511 and the fixed locking block 3523. At the same time, the flip plate 344 is restored to its initial horizontal state under the action of the coil spring. When it is necessary to adjust the position of the supporting and discharging mechanism 3, the positioning rod 14 is rotated to rotate the positioning rod 14 out of the positioning hole 11. At this time, the L-shaped supporting seat 32 and the movable supporting assembly 34 are slid along the limiting slide groove 36. After sliding to the specified position,Reverse the positioning rod 14 and insert and fix the positioning rod 14 into the corresponding positioning hole 11 to adjust the position of the supporting and discharging mechanism 3.

[0046] Working principle: During use of the present invention, the metal sheet to be processed is first placed at the top center of the workbench 5. At this time, the output end of the No. 1 hydraulic cylinder 9 descends, driving the linkage clamping mechanism 2 to position and clamp the metal sheet. At the same time, the top plate 8 and the distance adjustment mechanism 6 and the cutting mechanism 7 thereon are synchronously driven to move downward, and the distance adjustment mechanism 6 is used to crimp and fix the metal sheet from top to bottom. After the positioning is completed, the cutting mechanism 7 is used to perform integrated synchronous punching and cutting on the four corners of the metal sheet. After the punching and cutting, as the cutting mechanism 7 continues to move downward, the locking component 35 in the supporting and discharging mechanism 3 is unlocked. At this time, the supporting and discharging mechanism 3 realizes the automatic discharge of the scraps after punching and cutting. After the discharge is completed, the locking component 35 is automatically locked, and then the linkage clamping mechanism 2 is released to release the clamping, and the processed metal sheet is removed, thereby realizing the automatic positioning and clamping of the metal sheet, the integrated punching and cutting of the four corners, and the automatic discharge.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A CNC cutting machine, comprising a base (1), characterized in that: A No. 1 hydraulic cylinder (9) is fixedly connected to the top of the front side of the base (1); a top plate (8) is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder (9); a distance adjustment mechanism (6) is arranged at the bottom of the top plate (8); a cutting mechanism (7) is arranged at the rear side of the top of the top plate (8); four supporting legs (10) are evenly installed on the top of the base (1); a workbench (5) is commonly arranged on the top of the four supporting legs (10); mounting holes (4) are evenly opened on the circumference of the workbench (5); a supporting and discharging mechanism (3) is arranged inside the mounting hole (4); and a linkage clamping mechanism (2) is commonly arranged on the base (1), the workbench (5) and the No. 1 hydraulic cylinder (9); The linkage clamping mechanism (2) comprises a linkage assembly (23), the linkage assembly (23) comprises a bearing plate (236) fixedly mounted on the top of the base (1), a fixed shaft (234) rotatably penetrates the top of the bearing plate (236), and a first spur gear (235) is sleeved and fixed at the front end of the fixed shaft (234); The supporting and discharging mechanism (3) comprises a limiting slide groove (36) symmetrically arranged on the side wall of the mounting hole (4), a guide slider (37) is slidably connected in the limiting slide groove (36), an L-shaped supporting seat (32) is fixedly connected between the two guide sliders (37), a T-shaped groove (31) is arranged on the L-shaped supporting seat (32), a movable supporting component (34) is arranged on the side of the L-shaped supporting seat (32) away from the center of the workbench (5), and a locking component (35) is arranged between the movable supporting component (34) and the L-shaped supporting seat (32); The cutting mechanism (7) comprises a No. 2 hydraulic cylinder (73) fixedly mounted on the rear side of the top of the top plate (8); a No. 2 fixed plate (71) is fixedly connected to the top of the output end of the No. 2 hydraulic cylinder (73); L-shaped telescopic rods (72) are evenly mounted on the circumferential outer wall of the No. 2 fixed plate (71); and a T-shaped cutter (79) is fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod (72).

2. A CNC cutting machine according to claim 1, characterized in that: The rear end of the fixed shaft (234) is fixedly connected to a first bevel gear (237); the outer wall of the output end of the first hydraulic cylinder (9) is sleeved and fixed with a fixed sleeve rod (231); the bottom of the horizontal section of the fixed sleeve rod (231) is fixedly connected with a fixed rod (232); the bottom of the fixed rod (232) is fixedly connected with a rack (233) meshing with a first spur gear (235); the bottom center of the workbench (5) is rotatably connected with a mounting rod (26); the bottom of the mounting rod (26) is fixedly connected with a second bevel gear (238) meshing with the first bevel gear (237); the lower part of the mounting rod (26) is sleeved and fixed with a first fixed plate (25); the bottom of the first fixed plate (25) is evenly rotatably connected with a plurality of L-shaped rods (24); an adjustment assembly (21) is provided at one end of the L-shaped rod (24) away from the first fixed plate (25).

3. A CNC cutting machine according to claim 2, characterized in that: The top of the workbench (5) is evenly provided with a plurality of guide grooves (12) in a circumferential direction, and a stopper (13) is fixedly connected to a side of the guide groove (12) away from the center of the workbench (5). The adjustment component (21) comprises a clamping arm (211) slidably connected to the inside of the guide groove (12), and the bottom of the clamping arm (211) is slidably connected to a guide rail (212) via a limit slider, and the bottom of the guide rail (212) is rotatably connected to an L-shaped rod (24) on a side close to the center of the base (1), and the lower end of the clamping arm (211) is A second L-shaped plate (216) is fixedly connected to the side wall, a locking nut block (214) is fixedly connected to the vertical section of the second L-shaped plate (216), a locking screw (215) is internally threadedly connected to the locking nut block (214), the locking screw (215) rotates through the second L-shaped plate (216) and then rotates to connect to a crimping block (213), the crimping block (213) is crimped and fixed to the side wall of the guide rail (212), and a buffer assembly (22) is arranged on the top of one side of the clamping arm (211) close to the center of the workbench (5).

4. A CNC cutting machine according to claim 3, characterized in that: The buffer assembly (22) comprises two threaded rods (221) which are symmetrical in the upper and lower parts and slide through the top of the clamping arm (211); the two threaded rods (221) are fixedly connected to a clamping plate (224) on one side close to the center of the workbench (5); a No. 1 spring (223) is sleeved on the middle part of the threaded rod (221); the No. 1 spring (223) is arranged between the clamping plate (224) and the clamping arm (211); one end of the threaded rod (221) away from the clamping plate (224) is threadedly connected to a fastening nut (222); and the fastening nut (222) fits the clamping arm (211).

5. A CNC cutting machine according to claim 1, characterized in that: The movable support assembly (34) comprises two guide rods (347) slidingly passing through the bottom of one side of the L-shaped support seat (32) away from the center of the workbench (5); the tops of the two guide rods (347) are fixedly connected to a movable support block (346); the outer peripheries of the two guide rods (347) are sleeved with a No. 2 spring (348); the No. 2 spring (348) is arranged between the movable support block (346) and the L-shaped support seat (32); a receiving groove is provided at the top of the movable support block (346); and a mounting shaft (345) is fixedly connected to the side of the mounting groove away from the center of the workbench (5); a flip plate (344) is rotatably connected to the middle of the mounting shaft (345) through a coil spring; and the receiving groove is away from the mounting groove. A pad (343) is fixedly connected to one side of the shaft (345); a guide groove (342) is provided inside the movable supporting block (346) on a side close to the pad (343); a mounting square rod (349) is slidably connected to the inside of the guide groove (342); a No. 1 roller (341) is rotatably connected to the top of the mounting square rod (349) via 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 material guide plate (33) is fixedly connected to the side of the bottom of the L-shaped supporting seat (32) away from the center of the workbench (5); and a discharging chute (16) is provided at the side of the bottom of the mounting hole (4) away from the center of the workbench (5).

6. A CNC cutting machine according to claim 5, characterized in that: The locking assembly (35) comprises fixed locking components (351) symmetrically fixedly mounted on both sides of the movable supporting block (346) parallel to the conveying direction of the limiting slide groove (36); the fixed locking components (351) comprise a movable locking block (3511) fixedly mounted on the movable supporting block (346); a plug hole (3512) is provided at the center of the movable locking block (3511); the L-shaped supporting seat (32) is symmetrically fixedly connected with two movable locking components (352) parallel to the conveying direction of the limiting slide groove (36); a guiding inclined groove (3517) is provided at the top of the movable locking block (3511) in a direction close to the movable locking component (352); the movable locking block (3511) is provided with a guide groove (3518) in a direction close to the movable locking component (352); A No. 1 mounting groove (3513) is provided in the direction of the movable locking component (352), a locking rod (3514) is slidably installed inside the No. 1 mounting groove (3513), one end of the locking rod (3514) passes through the insertion hole (3512), the part of the locking rod (3514) located inside the insertion hole (3512) is an arc-shaped head, a No. 1 retaining ring (3515) is sleeved and fixed in the middle of the locking rod (3514), and a No. 3 spring (3516) is sleeved on one end of the locking rod (3514) close to the movable locking component (352), the No. 3 spring (3516) is arranged between the No. 1 retaining ring (3515) and the inner wall of the No. 1 mounting groove (3513), and the No. 1 retaining ring (3515) is slidably connected to the inside of the No. 1 mounting groove (3513).

7. A CNC cutting machine according to claim 6, characterized in that: The movable locking component (352) includes a fixed locking block (3523) fixedly mounted on the L-shaped supporting seat (32), and also includes a No. 2 mounting groove (3524) provided inside the fixed locking block (3523) near the No. 1 mounting groove (3513); a movable rod (3522) movably penetrates inside the No. 2 mounting groove (3524); a No. 2 roller (3526) is fixedly connected to one end of the movable rod (3522), and the outer wall of the No. 2 roller (3526) is fitted with the other end of the locking rod (3514); a No. 2 retaining ring (3521) is sleeved and fixedly mounted in the middle of the movable rod (3522); a No. 4 spring (3525) is wound around the middle of the movable rod (3522); and the No. 4 spring (3525) is arranged between the No. 2 retaining ring (3521) and the No. 2 mounting groove (3524).

8. A CNC cutting machine according to claim 7, characterized in that: The center of the top of the fixed locking block (3523) is fixedly connected to an L-shaped plate (15), the center of the top of the L-shaped plate (15) is fixedly connected to a threaded block (17), the center of the threaded block (17) is threadedly connected to a positioning rod (14), the bottom of the positioning rod (14) passes through the bottom of the L-shaped plate (15), and a plurality of positioning holes (11) are evenly opened on both sides of the mounting hole (4) at the top of the workbench (5).

9. A CNC cutting machine according to claim 1, characterized in that: Two mounting plates (76) are symmetrically fixedly connected to the bottom of the vertical section of the L-shaped telescopic rod (72), and the bottoms of the two mounting plates (76) are fixedly connected to unlocking rods (77), and a pressure ring (78) is fixedly sleeved on the middle and lower part of the outer wall of the unlocking rod (77).

10. A CNC cutting machine according to claim 1, characterized in that: The distance adjustment mechanism (6) comprises a fixed housing (61) fixedly connected to the bottom of the top plate (8), a driving assembly (62) is arranged at the bottom of the fixed housing (61), the driving assembly (62) comprises a plurality of limit slideways evenly arranged at the bottom of the fixed housing (61), a movable block (627) is slidably connected inside the limit slideway, a toothed disc (628) is rotatably connected inside the fixed housing (61), a servo motor (621) is fixedly connected to the outer wall of the fixed housing (61), an output end of the servo motor (621) rotates through the fixed housing (61) and is sleeved and fixed with a second spur gear (622), a ring gear (626) meshing with the second spur gear (622) is fixedly connected to the outer periphery of the top of the toothed disc (628), and the toothed disc (628) is ) is meshed with the top of the movable block (627); a movable arm (623) is fixedly connected to a side of the movable block (627) away from the fixed housing (61); one end of the movable arm (623) is fixedly connected to a limiting head (624); a limiting groove (629) for limiting the upper and lower positions of the T-shaped tool (79) is provided at the center of the limiting head (624); two pressing blocks (625) for crimping and fixing the metal sheet are symmetrically fixedly connected to the bottom of the limiting head (624); a limiting rod (74) is fixedly connected to the top of the limiting head (624); a limiting block (75) is slidably connected to the upper part of the limiting rod (74); and the limiting block (75) is fixedly connected to an outer wall of one side of the bottom of the vertical section of the L-shaped telescopic rod (72) close to the fixed housing (61).

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