Double-saw blade numerical control copying machine

Abstract

A double-saw blade numerical control copying machine, comprising a frame, a cutting table arranged on the frame for placing a stone to be processed, a cutting device movably arranged on the frame above the cutting table, and a moving device for controlling the movement of the cutting device, the moving device comprising a first moving mechanism for controlling the up-and-down movement of the cutting device, the frame being provided with a moving seat for mounting the cutting device, the first moving mechanism being arranged between the moving seat and a base plate, comprising a nut seat arranged on the moving seat, a screw rod rotatably arranged on the base plate and matched with the nut seat, a first motor arranged on the base plate and driving the screw rod to rotate, two guide cylinders arranged on the moving seat and respectively located on the two sides of the nut seat, and two guide rods arranged on the base plate and respectively matched with the two guide cylinders, the guide cylinders and the guide rods being additionally arranged on the two sides of the screw rod and matched with each other, so as to ensure that the screw rod can stably drive the double-saw blade cutting mechanism to move up and down and improve the cutting precision of the stone.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of numerical control copying machines, in particular to a double-saw-blade numerical control copying machine. BACKGROUND

[0002] The copying machine can be used to cut stone or process a pattern on the surface of the stone, and in the prior art, a motion mechanism controls the saw blade to cut the shape of the stone according to a programmed path, wherein the motion mechanism controls the movement direction of the XYZ axis, and in order to improve the cutting efficiency, a double-saw-blade cutting structure is provided, but due to the work of the double-saw-blade, the load borne by the equipment is larger, and vibration is more likely to occur, which affects the cutting accuracy, and the motion mechanism for erecting the double-saw-blade is relatively simple and has poor stability, and the equipment is easily damaged after long-term use, so it is necessary to design a double-saw-blade copying machine with good stability. SUMMARY

[0003] The purpose of the application is to overcome the shortcomings of the prior art and provide a double-saw-blade numerical control copying machine with good stability.

[0004] The application adopts the following technical scheme:

[0005] A double-saw-blade numerical control copying machine comprises a rack, a cutting table arranged on the rack for placing a stone to be processed, a cutting device movably arranged on the rack above the cutting table, and a moving device for controlling the movement of the cutting device;

[0006] The cutting device comprises a saw blade motor, a double-saw-blade cutting mechanism, and a saw blade motor mounting mechanism, the saw blade motor mounting mechanism comprises a base plate, a mounting plate arranged on the base plate for mounting the saw blade motor, and an adjusting fixing member arranged between the saw blade motor and the mounting plate, the adjusting fixing member comprises a plurality of fixing grooves arranged at intervals in a vertical direction from the top of the mounting plate, an adjusting plate arranged on the saw blade motor opposite to the mounting plate, a fixing hole arranged on the adjusting plate opposite to one fixing groove, and a fixing assembly arranged between the fixing groove and the fixing hole;

[0007] The moving device comprises a first moving mechanism for controlling the up-and-down movement of the cutting device, the rack is provided with a moving seat for mounting the cutting device, the first moving mechanism is arranged between the moving seat and the base plate, and comprises a nut seat arranged on the moving seat, a screw rod rotatably arranged on the base plate and matched with the nut seat, a first motor arranged on the base plate and driving the screw rod to rotate, two guide cylinders arranged on the moving seat and respectively located on the two sides of the nut seat, and two guide rods arranged on the base plate and respectively matched with the two guide cylinders; the guide cylinder is integrally formed with the moving seat.

[0008] Further, the rack comprises a base frame, two vertical frames oppositely arranged on the two sides of the base frame, and a cross beam connected between the two vertical frames, and the moving seat is provided with a moving hole through which the cross beam passes.

[0009] Further, the mobile device comprises a second moving mechanism for driving the mobile base to move laterally, the second moving mechanism comprising a lateral rack arranged on the crossbeam, a lateral gear arranged on the mobile base in the mobile hole and matched with the lateral rack, a second motor arranged on the mobile base and connected with the lateral gear to drive the lateral gear to rotate, two lateral guides arranged on the crossbeam and respectively located on both sides of the lateral rack, and two lateral sliders arranged on the inner wall of the mobile hole and respectively matched with the two lateral guides.

[0010] Further, the crossbeam comprises a base frame and a mounting frame arranged on the top of the base frame, the mounting frame has a large structure from top to bottom, and the lateral rack and the lateral guides are arranged on the top of the mounting frame.

[0011] Further, the mobile base has a cuboid shape, the first weight-reducing holes are arranged on the side surface and the bottom surface of the mobile base, and the first reinforcing ribs are arranged around the first weight-reducing holes on the inner wall of the mobile hole.

[0012] Further, the fixing groove has a T-shaped cross section, the fixing assembly comprises a fixing bolt and a fixing nut, the fixing bolt is arranged in the fixing groove and can move up and down, the lower end of the fixing bolt passes through the opposite fixing holes, and the fixing nut is matched with the fixing bolt to fix the adjusting plate on the mounting plate.

[0013] Further, the adjusting fixing part further comprises a limiting assembly arranged on the base plate below the mounting plate, the limiting assembly comprises a limiting block arranged below the mounting plate, a threaded hole seat arranged on the limiting block and opposite to the lower end of the adjusting plate, and a limiting bolt matched with the threaded hole seat and abutting against the lower end of the adjusting plate.

[0014] Further, the adjusting fixing part further comprises a positioning assembly arranged on the base plate and used for mounting the limiting block, the positioning assembly comprises a positioning plate extending along the arrangement direction of the plurality of fixing grooves, a plurality of positioning threaded holes arranged on the positioning plate at intervals, a through hole arranged on the limiting block and opposite to the positioning threaded hole, and a positioning bolt passing through the through hole and matched with the positioning threaded hole.

[0015] Further, the double-saw-blade cutting mechanism comprises two saw blades arranged oppositely, a rotating main shaft rotatably arranged between the two saw blades, a mounting seat arranged on the base plate and used for mounting the rotating main shaft, and a tensioning belt tensioned between the output shaft of the saw blade motor and the rotating main shaft, the mounting seat is provided with a gap hole for the tensioning belt to pass through.

[0016] Further, the adjusting fixing part further comprises a limiting assembly arranged on the base plate below the mounting plate, the limiting assembly comprises a limiting block arranged below the mounting plate, a threaded hole seat arranged on the limiting block and opposite to the lower end of the adjusting plate, and a limiting bolt matched with the threaded hole seat and abutting against the lower end of the adjusting plate.

[0017] From the above description of the present application, compared with the prior art, the beneficial effects of the present application are: by limiting the structure of the saw blade motor mounting mechanism, a plurality of spaced fixed grooves are arranged, and a fixed assembly is arranged to adapt to the installation of saw blade motors with different shaft lengths, improve the practicality of the device, without the need to set up a special installation mechanism, which can greatly reduce the cost; at the same time, the structure of the moving seat and the moving device is limited, so that the moving seat fully surrounds the cross beam, so as to ensure that the cutting device can move stably on the cross beam; the guide cylinder and the guide rod matched with each other are added on both sides of the lead screw, so as to ensure that the lead screw can stably drive the double-saw blade cutting mechanism to move up and down, and improve the cutting precision of the stone. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of a double-saw blade numerical control copying machine Figure One ;

[0019] Figure 2 Structure diagram of a double-saw blade numerical control copying machine Figure Two ;

[0020] Figure 3 Structure diagram of a double-saw blade numerical control copying machine Figure Three ;

[0021] Figure 4 Enlarged view of A in Figure 2 ;

[0022] Figure 5 Enlarged view of B in Figure 3 ;

[0023] Figure 6 Installation diagram of a long-shaft saw blade motor

[0024] Figure 7 Installation diagram of a short-shaft saw blade motor

[0025] Figure 8 Structure diagram of a cutting device Figure One ;

[0026] Figure 9 Structure diagram of a cutting device Figure Two ;

[0027] Figure 10 Structure diagram of a cutting device Figure Three ;

[0028] Figure 11 Structure diagram of a saw blade motor mounting mechanism Figure One ;

[0029] Figure 12 Structure diagram of a saw blade motor mounting mechanism Figure Two ;

[0030] Figure 13 Fig. 1 is a structural schematic diagram of a saw blade motor;

[0031] Figure 14 Fig. 2 is a schematic diagram of the cooperation between a moving seat and a crossbeam; Figure One ;

[0032] Figure 15 Fig. 3 is a schematic diagram of the cooperation between a moving seat and a crossbeam; Figure Two ;

[0033] Figure 16 Fig. 4 is a structural schematic diagram of a moving seat; Figure One ;

[0034] Figure 17 Fig. 5 is a structural schematic diagram of a moving seat; Figure Two ;

[0035] Figure 18 Fig. 6 is a structural schematic diagram of a moving group; Figure Three ;

[0036] Figure 19 Fig. 7 is a structural schematic diagram of a crossbeam; Figure One ;

[0037] Figure 20 Fig. 8 is a structural schematic diagram of a crossbeam; Figure Two ;

[0038] In the drawings, 1 is a frame, 2 is a cutting table, 3 is a cutting device, 4 is a first moving mechanism, 5 is a second moving mechanism, 6 is a third moving mechanism, 7 is a moving seat, 8 is a correction mechanism, 11 is a base frame, 12 is a stand, 13 is a crossbeam, 131 is a base frame, 132 is a mounting frame, 133 is a second lightening hole, 134 is a second reinforcing rib, 31 is a saw blade motor, 32 is a double-saw blade cutting mechanism, 321 is a saw blade, 322 is a rotating main shaft, 323 is a mounting seat, 3231 is a let-hole, 324 is a tension belt, 33 is a saw blade motor mounting mechanism, 331 is a base plate, 332 is a mounting plate, 333 is an adjustment fixing piece, 334 is a fixing groove, 335 is an adjustment plate, 336 is a fixing hole, 337 is a fixing assembly, 3371 is a fixing bolt, 3372 is a fixing nut, 338 is a limiting assembly, 3381 is a limiting block, 3382 is a screw hole seat, 3383 is a limiting bolt, 339 is a positioning assembly, 3391 is a positioning plate, 3392 is a positioning screw hole, 3393 is a through hole, 41 is a nut seat, 42 is a screw rod, 43 is a first motor, 44 is a guide cylinder, 45 is a guide rod, 51 is a transverse rack, 52 is a transverse gear, 53 is a second motor, 54 is a transverse guide rail, 55 is a transverse sliding block, 61 is a longitudinal rack, 62 is a longitudinal gear, 63 is a third motor, 64 is a longitudinal guide rail, 65 is a longitudinal sliding block, 71 is a moving hole, 72 is a first lightening hole, 73 is a first reinforcing rib, 81 is a transverse sliding rail, and 82 is a pulley. DETAILED DESCRIPTION

[0039] The application is further described below through the specific embodiments.

[0040] Referring to Figures 1 to 20 As shown in the figure, a double-saw blade numerical control copying machine comprises a rack 1, a cutting table 2, a cutting device 3 and a moving device.

[0041] The rack 1 comprises a base frame 11, two vertical frames 12 oppositely arranged on both sides of the base frame 11 and a cross beam 13 movably connected between the two vertical frames 12. Specifically, the cross beam 13 is arranged in a transverse direction and comprises a base frame 131 and a mounting frame 132 arranged on the top of the base frame 131. The base frame 131 is in a structure with a small size from top to bottom. Specifically, the base frame 131 is hollow inside and comprises second weight-reducing holes 133 formed on the side surface and the bottom surface and second reinforcing ribs 134 formed on the inner wall. The second weight-reducing holes 133 are arranged on the cross beam 13 to reduce the overall weight of the cross beam 13 and reduce the load bearing of the vertical column. The second reinforcing ribs 134 are additionally arranged to ensure that the moving seat 7 can maintain its strength as much as possible while reducing the weight and ensure the stable installation of the processing mechanism and the moving seat.

[0042] The cutting table 2 is arranged on the base frame 11 and used for placing the stone to be processed.

[0043] The cutting device 3 is movably arranged on the cross beam 13 above the cutting table 2 and comprises a saw blade motor 31, a double-saw blade cutting mechanism 32 and a saw blade motor mounting mechanism 33. Correspondingly, the cross beam 13 is provided with a moving seat 7 for mounting the cutting device 3. The moving seat 7 is provided with a moving hole 71 through which the cross beam 13 passes. The moving hole 71 is arranged on the moving seat 7 to fully surround the cross beam 13 so as to ensure that the cutting device 3 can move stably on the cross beam 13. Specifically, the moving seat 7 is in a cuboid shape and the moving hole 71 extends transversely through the opposite side surface from one side surface of the moving seat 7. Further, the side surface and the bottom surface of the moving seat 7 are provided with first weight-reducing holes 72 and the inner wall of the moving hole 71 is formed with first reinforcing ribs 73 arranged around the first weight-reducing holes 72. The first weight-reducing holes 72 are arranged to reduce the overall weight of the moving seat 7 and reduce the load bearing of the cross beam 13. The first reinforcing ribs 73 are additionally arranged to ensure that the moving seat 7 can maintain its strength as much as possible while reducing the weight and ensure the stable installation of the processing mechanism.

[0044] The saw blade motor mounting mechanism 33 comprises a base plate 331, a mounting plate 332 arranged on the base plate 331 for mounting the saw blade motor 31, and an adjusting fixing part 333 arranged between the saw blade motor 31 and the mounting plate 332, the adjusting fixing part 333 comprising a plurality of fixing grooves 334 arranged at intervals in a vertical direction from the top of the mounting plate 332, an adjusting plate 335 arranged on the saw blade motor 31 opposite to the mounting plate 332, a fixing hole 336 arranged on the adjusting plate 335 opposite to one of the fixing grooves 334, a fixing assembly 337 arranged between the fixing groove 334 and the fixing hole 336, a limiting assembly 338 arranged on the base plate 331 below the mounting plate 332, and a positioning assembly 339 arranged on the base plate 331; specifically, the cross section of the fixing groove 334 is T-shaped; the adjusting plate 335 is arranged in two, and the two adjusting plates 335 are arranged on the saw blade motor 31 opposite to each other; when the saw blade motor 31 is mounted, according to the processing needs, a long-shaft saw blade motor or a short-shaft motor is selected, and then the saw blade motor 31 is adjusted to a suitable position, so that the fixing hole 336 is opposite to one of the fixing grooves 334, and then the fixing assembly 337 is used to fix the saw blade motor 31, so as to complete the installation of the saw blade motor 31; through the cooperation of the fixing hole 336 and the plurality of fixing grooves 334, the installation of the short-shaft saw blade motor or the long-shaft saw blade motor is realized, without the need to arrange a special mounting mechanism, so that the installation is convenient and the cost is greatly reduced.

[0045] The fixing assembly 337 comprises a fixing bolt 3371 and a fixing nut 3372, the fixing bolt 3371 is arranged in the fixing groove 334 and can move up and down, the lower end of the fixing bolt 3371 penetrates through the opposite fixing hole 336, and the upper end of the fixing bolt 3371 is arranged in the fixing groove 334 and is limited by the T-shaped fixing groove 334, so that the fixing bolt 3371 can only move up and down in a vertical direction; the fixing nut 3372 cooperates with the fixing bolt 3371 to fix the adjusting plate 335 on the mounting plate 332, so as to complete the installation of the saw blade motor 31.

[0046] The limiting assembly 338 is arranged on the base plate 331 below the mounting plate 332, and further fixes the saw blade motor 31, comprising a limiting block 3381 arranged below the mounting plate 332, a threaded hole seat 3382 arranged on the limiting block 3381 opposite to the lower end of the adjusting plate 335, and a limiting bolt 3383 cooperating with the threaded hole seat 3382 and abutting against the lower end of the adjusting plate 335; specifically, the limiting bolt 3383 can abut against the lower end of the adjusting plate 335 at the lower end, and through the arrangement of the limiting assembly 338, a supporting force in a vertical direction can be provided for the saw blade motor 31, so as to further ensure that the saw blade motor 31 is stably mounted on the mounting plate 332.

[0047] The positioning assembly 339 is arranged on the base plate 331 for mounting the limiting block 3381, and comprises a positioning plate 3391 extending along the arrangement direction of the plurality of fixing grooves 334, a plurality of positioning screw holes 3392 arranged at intervals on the positioning plate 3391, a through hole 3393 arranged on the limiting block 3381 and capable of being opposite to the positioning screw hole 3392, and a positioning bolt passing through the through hole 3393 and matched with the positioning screw hole 3392. Through the cooperation of the positioning screw hole 3392, the positioning bolt, the through hole 3393 and the positioning plate 3391, the detachable mounting of the limiting block 3381 is realized, so as to simultaneously adapt to the mounting of the long-shaft saw blade motor or the short-shaft saw blade motor.

[0048] The double-saw blade cutting mechanism 32 comprises two saw blades 321 arranged oppositely, a rotating main shaft 322 rotatably arranged between the two saw blades 321, a mounting seat 323 arranged on the base plate 331 for mounting the rotating main shaft 322, and a tensioning belt 324 tensioned between the saw blade motor 31 output shaft and the rotating main shaft 322. Specifically, the mounting seat 323 is provided with a gap hole 3231 through which the tensioning belt 324 passes. Through the arrangement of the gap hole 3231, when the saw blade motor 31 is a short-shaft saw blade motor, the tensioning belt 324 can pass through the gap hole 3231 and be tensioned between the saw blade motor 31 output shaft and the rotating main shaft 322, thereby meeting the installation of the short-shaft saw blade motor.

[0049] When the saw blade motor 31 is installed, according to the processing needs, a long-shaft saw blade motor or a short-shaft motor is selected, and then the saw blade motor 31 is adjusted to a suitable position according to the tensioning degree of the tensioning belt 324, so that the fixing hole 336 is opposite to one of the fixing grooves 334. Then, the saw blade motor 31 is fixed by the cooperation of the fixing assembly 337 and the limiting assembly 338, so as to complete the installation of the saw blade motor 31. Through the cooperation of the fixing hole 336 and the plurality of fixing grooves 334 and the cooperation of the screw hole seat 3382 and the limiting bolt 3383, the installation of the short-shaft saw blade motor or the long-shaft saw blade motor is realized, without the need to arrange a special mounting mechanism, thereby being convenient to install and greatly reducing the cost. At the same time, the tensioning degree of the tensioning belt 324 can be adjusted through the cooperation of the screw hole seat 3382 and the limiting bolt 3383, so as to ensure the stable processing, without the need to replace the new tensioning belt 324 when the tensioning belt 324 is loose, thereby further reducing the cost.

[0050] The moving device is used for controlling the movement of the XYZ axes of the cutting device 3, and comprises a first moving mechanism 4 for controlling the up-down movement of the cutting device 3, a second moving mechanism 5 for controlling the transverse movement of the moving seat 7, and a third moving mechanism 6 for controlling the back-and-forth movement of the cross beam 13. The positions of the cutting device 3 are adjusted through the cooperation between the first moving mechanism 4, the second moving mechanism 5 and the third moving mechanism 6, so as to complete the processing of the stone.

[0051] The first moving mechanism 4 is arranged between the moving seat 7 and the base plate 331, and comprises a nut seat 41 arranged on the moving seat 7, a screw rod 42 rotatably arranged on the base plate 331 and matched with the nut seat 41, a first motor 43 arranged on the base plate 331 and used for driving the screw rod 42 to rotate, two guide cylinders 44 arranged on the moving seat 7 and located on both sides of the nut seat 41 respectively, and two guide rods 45 arranged on the base plate 331 and matched with the two guide cylinders 44 respectively. The guide cylinders 44 and the guide rods 45 matched with each other are additionally arranged on both sides of the screw rod 42, so that the screw rod 42 can stably drive the double-saw blade cutting mechanism 32 to move up and down, and the cutting precision of the stone is improved. Specifically, the guide cylinder 44 is integrally formed with the moving seat 7, and the cutting device 3 is convenient to install.

[0052] The second moving mechanism 5 comprises a transverse rack 51 arranged on the cross beam mounting frame 132 in a transverse direction, a transverse gear 52 arranged on the moving seat 7 in the moving hole 71 and matched with the transverse rack 51, a second motor 53 arranged on the moving seat 7 and used for connecting and driving the transverse gear 52 to rotate, two transverse guide rails 54 arranged on the cross beam mounting frame 132 and located on both sides of the transverse rack 51 respectively, and two transverse sliding blocks 55 arranged on the inner wall of the moving hole 71 and matched with the two transverse guide rails 54 respectively. Through the cooperation of the transverse sliding blocks 55 and the transverse guide rails 54, the moving seat 7 can be stably arranged on the cross beam 13 and move back and forth in a transverse direction.

[0053] The third moving mechanism 6 is arranged on the two stands 12 and comprises a longitudinal rack 61 arranged on the top of the stand 12 in a longitudinal direction, a longitudinal gear 62 arranged on the end of the cross beam 13 and matched with the longitudinal rack 61, a third motor 63 arranged on the end of the cross beam 13 and used for connecting and driving the longitudinal gear 62 to rotate, two longitudinal guide rails 64 arranged on the stand 12 and located on both sides of the longitudinal rack 62 respectively, and two longitudinal sliding blocks 65 arranged on the bottom of the cross beam 13 and matched with the two longitudinal guide rails 64 respectively. Through the cooperation of the longitudinal sliding blocks 65 and the longitudinal guide rails 64, the cross beam 13 can be stably arranged between the two stands 12 and move back and forth in a longitudinal direction.

[0054] The correction mechanism 8 is arranged between the cross beam 13 and the moving seat 7, and comprises two transverse sliding rails 81 arranged on the opposite sides of the cross beam 13 and two pulleys 82 arranged on the inner wall of the moving hole 71 and matched with the transverse sliding rails 81 respectively. Through the cooperation of the transversely arranged transverse sliding rails 81 and the pulleys 82, the position of the moving seat 7 on the cross beam 13 can be corrected, and the movement of the second moving mechanism 5 can be assisted, the load of the second moving mechanism 5 is reduced, vibration of the moving seat 7 during transverse movement is avoided, and the machining precision is ensured.

[0055] The application sets multiple fixed grooves 334 arranged at intervals by limiting the structure of the saw blade motor mounting mechanism 33, cooperates with the fixed assembly 337 to adapt the installation of the saw blade motor 31 with different shaft lengths, improves the practicability of the device, does not need to set a special mounting mechanism, and can greatly reduce the cost; meanwhile, the structure of the moving seat 7 and the moving device is limited, the moving seat 7 fully surrounds the cross beam 13, so that the cutting device 3 can be stably moved on the cross beam 13; the guide cylinder 44 and the guide rod 45 matched with each other are additionally arranged on both sides of the lead screw 42, so that the lead screw 42 can stably drive the double-saw-blade cutting mechanism 32 to move up and down, and the cutting precision of the stone is improved.

[0056] The above is only a preferred embodiment of the application, and therefore cannot limit the range of the application. Equivalent changes and modifications made according to the patent application scope and the content of the specification should still be within the scope of the application.

Claims

1. A double saw blade numerical control copying machine characterized by: The machine frame, the cutting table, the cutting device and the moving device; The cutting device comprises a saw blade motor, a double-saw blade cutting mechanism and a saw blade motor mounting mechanism, the saw blade motor mounting mechanism comprises a base plate, a mounting plate arranged on the base plate for mounting the saw blade motor and an adjusting fixing member arranged between the saw blade motor and the mounting plate, the adjusting fixing member comprises a plurality of fixing grooves arranged at intervals and extending in a vertical direction from the top of the mounting plate, an adjusting plate arranged on the mounting plate opposite to the mounting plate, a fixing hole arranged on the adjusting plate opposite to one of the fixing grooves and a fixing assembly arranged between the fixing groove and the fixing hole; The moving device comprises a first moving mechanism for controlling the up-and-down movement of the cutting device, the machine frame is provided with a moving seat for mounting the cutting device, the first moving mechanism is arranged between the moving seat and the base plate and comprises a nut seat arranged on the moving seat, a screw rod rotatably arranged on the base plate and matched with the nut seat, a first motor arranged on the base plate and driving the screw rod to rotate, two guide cylinders arranged on the moving seat and located on the two sides of the nut seat respectively and two guide rods arranged on the base plate and matched with the two guide cylinders respectively; the guide cylinder is integrally formed with the moving seat; The adjusting fixing member further comprises a limiting assembly arranged on the base plate below the mounting plate, the limiting assembly comprises a limiting block arranged below the mounting plate, a screw hole seat arranged on the limiting block opposite to the lower end of the adjusting plate and a limiting bolt matched with the screw hole seat and abutting against the lower end of the adjusting plate; The adjusting fixing member further comprises a positioning assembly arranged on the base plate for mounting the limiting block, the positioning assembly comprises a positioning plate extending along the arrangement direction of the plurality of fixing grooves, a plurality of positioning screw holes arranged at intervals on the positioning plate, a through hole arranged on the limiting block opposite to one of the positioning screw holes and a positioning bolt passing through the through hole and matched with the positioning screw hole; The cross section of the fixing groove is T-shaped, the fixing assembly comprises a fixing bolt and a fixing nut, the fixing bolt is movably arranged in the fixing groove, the lower end of the fixing bolt passes through the opposite fixing hole and the fixing nut is matched with the fixing bolt to fix the adjusting plate on the mounting plate; The double-saw blade cutting mechanism comprises two saw blades arranged opposite to each other, a rotating main shaft rotatably arranged between the two saw blades, a mounting seat arranged on the base plate for mounting the rotating main shaft and a tensioning belt tensioned between the output shaft of the saw blade motor and the rotating main shaft, the mounting seat is provided with a gap hole for the tensioning belt to pass through.

2. The double saw blade numerical control copying machine according to claim 1, characterized in that: The machine frame comprises a base frame, two vertical frames arranged opposite to each other on the two sides of the base frame and a cross beam connected between the two vertical frames, the moving seat is provided with a moving hole for the cross beam to pass through.

3. The double saw blade numerical control copying machine according to claim 2, characterized in that: The moving device comprises a second moving mechanism for driving the moving seat to move back and forth laterally, the second moving mechanism comprises a lateral rack extending laterally and arranged on the cross beam, a lateral gear arranged on the moving seat and matched with the lateral rack in the moving hole, a second motor arranged on the moving seat and connected with and driving the lateral gear to rotate, two lateral rails arranged on the cross beam and located on the two sides of the lateral rack respectively and two lateral sliders arranged on the inner wall of the moving hole and matched with the two lateral rails respectively.

4. The double saw blade numerical control copying machine according to claim 3, characterized in that: The crossbeam comprises a base frame and a mounting frame arranged on the top of the base frame, the base frame is in a structure of small top and large bottom, and the transverse rack and the transverse guide rail are arranged on the top of the mounting frame.

5. The double saw blade numerical control copying machine according to claim 2, characterized in that; The moving seat is a cuboid, first lightening holes are arranged on the side surface and the bottom surface of the moving seat, and first reinforcing ribs are arranged around the first lightening holes on the inner wall of the moving hole.

6. The double saw blade numerical control copying machine according to claim 1, characterized in that: The correction mechanism arranged between the crossbeam and the moving seat comprises two transverse slides arranged on the two side surfaces of the crossbeam and two pulleys arranged on the two sides of the inner wall of the moving hole and matched with the transverse slides.

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