Fixing structure of numerical control plasma cutting machine

Abstract

The invention relates to the technical field of numerical control plasma cutting machines, in particular to a fixing structure of a numerical control plasma cutting machine, which comprises an operating table, a placing groove is formed in the operating table, moving blocks are symmetrically and slidably mounted in the placing groove, a driving assembly is arranged on the operating table, and a fixing seat is fixedly mounted on the moving blocks. Pressing rods are symmetrically and rotationally installed on the fixing base, a pressing block is fixedly installed at one end of each pressing rod, a transmission rod is fixedly installed at the other end of each pressing rod, and a rotating assembly is arranged on the fixing base. The two moving blocks are driven by the driving assembly to get close to each other, the distance between the two fixing bases is reduced, a plate is clamped and fixed between the two fixing bases, meanwhile, the transmission assembly drives the transmission rod and the pressing rod to rotate, the upper portion of the plate is limited, the better fixing effect is achieved, and the situation that in the machining process, the plate is not prone to being damaged is avoided. And the position of the plate deviates, so that the cutting precision is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled plasma cutting machines, and in particular to a fixing structure of a numerically controlled plasma cutting machine. Background Art

[0002] Fitness equipment is often divided into two categories according to the number of training functions: single-function and comprehensive multi-function. During the processing of fitness equipment accessories, CNC plasma cutting machines are needed for cutting. Plasma cutting uses the heat of a high-temperature plasma arc to partially or partially melt the metal at the incision of the workpiece, and uses the momentum of high-speed plasma to remove the molten metal to form an incision. A CNC plasma cutting machine refers to a workpiece instruction used to control machine tools or equipment. It is a new control method given in digital form. When this instruction is provided to the control device of a CNC automatic cutting machine, the cutting machine can automatically cut according to the given program.

[0003] When the existing CNC plasma cutting machine is working, the plate is directly placed on the workbench. However, during the cutting process of the plate, the plasma cutting machine will generate a moving reaction force on the plate, causing the plate to deviate slightly after being placed on the workbench, thereby reducing the cutting accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: during the cutting process of the plate, the plasma cutting machine will generate a moving reaction force on the plate, causing the plate to be slightly offset after being placed on the workbench, thereby reducing the cutting accuracy, and a fixed structure of a CNC plasma cutting machine is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fixed structure of a numerically controlled plasma cutting machine comprises an operating table, a gantry is mounted on the operating table, and a plasma cutting mechanism is slidably mounted on the gantry;

[0007] The operating table is provided with a placement groove, in which a moving block is symmetrically slidably installed, and the operating table is provided with a driving assembly for driving two moving blocks to move relative to each other, and L-shaped fixing seats are fixedly installed on both of the moving blocks;

[0008] A pressure rod is symmetrically rotatably mounted on the fixed seat through a torsion assembly, a pressure block is fixedly mounted on one end of the pressure rod, and a transmission rod is fixedly mounted on the other end. A rotating assembly for driving the transmission rod to rotate is provided on the fixed seat.

[0009] As a preferred solution, the driving assembly includes a threaded rod with opposite spiral directions at the left and right ends horizontally installed in the placement groove and a driving motor fixedly installed on the side of the operating table. One end of the threaded rod passes through the placement groove and is fixedly connected to the output shaft of the driving motor. The two moving blocks are symmetrically threaded on the threaded rod.

[0010] As a preferred solution, a mounting hole is provided in the middle portion of the pressure rod, and the torsion assembly includes a rotating shaft fixedly installed in the mounting hole, two mounting blocks respectively fixedly installed at both ends of the rotating shaft, and two torsion springs symmetrically sleeved on the rotating shaft, the two mounting blocks are fixedly installed on a fixed seat, and the two ends of the torsion spring are respectively fixedly connected to the pressure rod and the mounting block.

[0011] As a preferred solution, sliding holes are symmetrically opened on the fixed seat, and the rotating assembly includes two sliding rods respectively slidably installed in the two sliding holes, a strip plate fixedly installed at one end of the two sliding rods, a cross bar fixedly installed at the other end of the two sliding rods, and two telescopic springs respectively sleeved on the two sliding rods, the two ends of the telescopic spring are respectively fixedly connected to the fixed seat and the cross bar, and the cross bar is in sliding contact with the transmission rod.

[0012] As a preferred solution, a plurality of telescopic rods are fixedly installed between the two fixing seats, the number of the telescopic rods is not less than ten, and the telescopic rods are located directly above the threaded rod.

[0013] As a preferred solution, a powerful fan is fixedly installed in the installation groove, the powerful fan is located on one side of the two fixed seats, a waste chip opening is opened on the inner wall of the placement groove, and a dust cover is fixedly installed on the surface of the powerful fan.

[0014] As a preferred solution, a reciprocating screw is horizontally rotatably installed on the powerful fan, a movable seat is threadedly sleeved on the reciprocating screw, a fixed column is fixedly installed on the movable seat, a scraper rod is rotatably connected to the fixed column, a strip hole is opened on the scraper rod, a slide rail is fixedly installed on the lower surface of the dust cover, a slider is slidably installed on the slide rail, a connecting column is fixedly installed on the slider, one end of the connecting column is slidably installed in the strip hole, and a transmission component for driving the reciprocating screw to rotate is provided on the dust cover.

[0015] As a preferred solution, the transmission assembly includes a rotating shaft horizontally installed in the dust cover, a plurality of V-shaped plates fixedly installed on the rotating shaft and a linkage component, the rotating shaft is located between the dust cover and the powerful fan, and the linkage component is used for the rotating shaft to drive the reciprocating screw to rotate.

[0016] As a preferred solution, the linkage component includes a driving wheel fixedly sleeved on the rotating shaft, a driven wheel fixedly sleeved on the reciprocating screw, and a transmission belt sleeved on the driving wheel and the driven wheel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The plate is placed on two fixed seats, and then the driving assembly drives the two moving blocks to approach each other, thereby reducing the distance between the two fixed seats, clamping and fixing the plate between the two fixed seats, and at the same time, the transmission assembly drives the transmission rod and the pressure rod to rotate, so that the pressure block contacts the upper surface of the plate, which restricts the upper part of the plate, thereby playing a better fixing role, avoiding the position of the plate from shifting during the processing, and effectively improving the cutting accuracy;

[0019] 2. During the cutting process, the powerful fan can suck the generated smoke into the powerful fan, and at the same time suck the generated waste chips into the waste chip outlet and discharge them from the waste chip outlet. The dust cover can prevent the waste chips from entering the powerful fan, collect the generated waste chips, and avoid the generated waste chips affecting the cutting of the plate;

[0020] 3. When the powerful fan is in use, the reciprocating screw is driven to rotate through the transmission assembly, and then the surface of the dust cover can be cleaned with the cooperation of the moving seat, fixed column, scraper rod, slide rail, slider and connecting column to prevent waste from being adsorbed on the surface of the dust cover and affecting the use of the powerful fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural schematic diagram of a fixed structure of a CNC plasma cutting machine proposed by the present invention;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a driving assembly and a fixing seat in a fixing structure of a CNC plasma cutting machine proposed by the present invention;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0025] Figure 5 A schematic diagram of the three-dimensional structure of an operating table, a powerful fan and a dust cover in a fixed structure of a CNC plasma cutting machine proposed by the present invention;

[0026] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of an operating table, a powerful fan and a dust cover in a fixed structure of a CNC plasma cutting machine proposed by the present invention;

[0027] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0028] Figure 8 for Figure 6 The enlarged structural diagram at D in the middle;

[0029] Fig. 9 for Figure 6 The enlarged structural diagram at E in the middle;

[0030] Fig.10 for Figure 6 Enlarged structural diagram at F in the middle.

[0031] In the figure: 1 operating table, 2 gantry, 3 cutting mechanism, 4 moving block, 5 fixed seat, 6 pressure rod, 7 pressure block, 8 transmission rod, 9 threaded rod, 10 driving motor, 11 rotating shaft, 12 mounting block, 13 torsion spring, 14 sliding rod, 15 strip plate, 16 cross bar, 17 telescopic spring, 18 telescopic rod, 19 powerful fan, 20 waste chip outlet, 21 dust cover, 22 reciprocating screw rod, 23 moving seat, 24 fixed column, 25 scraper rod, 26 strip hole, 27 slide rail, 28 slider, 29 connecting column, 30 rotating shaft, 31 V-shaped plate, 32 driving wheel, 33 driven wheel, 34 transmission belt. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-Figure 10 A fixed structure of a CNC plasma cutting machine includes an operating table 1, a gantry 2 is installed on the operating table 1, and a plasma cutting mechanism 3 is slidably installed on the gantry 2. The plasma cutting mechanism 3 is a prior art. When cutting a plate, the gantry 2 can drive the plasma cutting mechanism 3 to move above the operating table 1 through a work instruction, and the plate is cut during the movement.

[0034] A placement groove is provided on the operating table 1, and moving blocks 4 are symmetrically and slidably installed in the placement groove. A driving component is provided on the operating table 1 for driving the two moving blocks 4 to move relative to each other. L-shaped fixing seats 5 are fixedly installed on the two moving blocks 4. The driving component includes a threaded rod 9 with opposite spiral directions at the left and right ends horizontally installed in the placement groove and a driving motor 10 fixedly installed on the side of the operating table 1. One end of the threaded rod 9 passes through the placement groove and is fixedly connected to the output shaft of the driving motor 10. The two moving blocks 4 are symmetrically threadedly sleeved on the threaded rod 9.

[0035] The L-shaped fixing seat 5 can play a supporting role. When placing a plate, the two ends of the plate are placed on the two fixing seats 5 respectively. Since the left and right ends of the threaded rod 9 have opposite spiral directions, when the threaded rod 9 rotates, it will drive the two moving blocks 4 to move closer to or away from each other. When the two moving blocks 4 move closer to each other, the distance between the two fixing seats 5 will be reduced, and the plate will be clamped and fixed between the two fixing seats 5 to achieve fixation.

[0036] A pressure rod 6 is symmetrically rotatably mounted on the fixed seat 5 through a torsion assembly, a mounting hole is opened in the middle portion of the pressure rod 6, the torsion assembly comprises a rotating shaft 11 fixedly mounted in the mounting hole, two mounting blocks 12 respectively fixedly mounted at both ends of the rotating shaft 11 and two torsion springs 13 symmetrically sleeved on the rotating shaft 11, the two mounting blocks 12 are both fixedly mounted on the fixed seat 5, the two ends of the torsion spring 13 are respectively fixedly connected to the pressure rod 6 and the mounting blocks 12, a pressure block 7 is fixedly mounted on one end of the pressure rod 6, and a transmission rod 8 is fixedly mounted on the other end, and a rotating assembly for driving the transmission rod 8 to rotate is provided on the fixed seat 5.

[0037] The pressure rod 6 can be rotated on the fixed seat 5 through the rotating shaft 11. Under the action of the torsion spring 13, the pressure rod 6 is in a horizontal state. When the transmission rod 8 moves upward away from one end of the pressure rod 6, it will drive the pressure rod 6 to rotate on the rotating shaft 11, the torsion spring 13 will undergo torsion deformation, and the end of the pressure rod 6 on which the pressure block 7 is installed will move downward.

[0038] The fixed seat 5 is symmetrically provided with sliding holes, and the rotating assembly includes two sliding rods 14 respectively slidably installed in the two sliding holes, a strip plate 15 fixedly installed at one end of the two sliding rods 14, a cross bar 16 fixedly installed at the other end of the two sliding rods 14, and two telescopic springs 17 respectively sleeved on the two sliding rods 14, the two ends of the telescopic spring 17 are respectively fixedly connected to the fixed seat 5 and the cross bar 16, and the cross bar 16 is in sliding contact with the transmission rod 8.

[0039] When the plate is placed on the two fixing seats 5, the strip plate 15 on the fixing seats 5 is located on one side of the plate. When the two fixing seats 5 are close to each other, the strip plate 15 will contact one end of the plate, and the two sliding rods 14 can be driven to slide in the two sliding holes respectively through the strip plate 15, and then the cross bar 16 is driven to move toward the transmission rod 8 through the two sliding rods 14, thereby driving the transmission rod 8 to rotate upward.

[0040] A plurality of telescopic rods 18 are fixedly installed between the two fixing seats 5, and the number of the telescopic rods 18 is not less than ten. The telescopic rods 18 are located directly above the threaded rod 9. The plurality of telescopic rods 18 are installed between the two fixing seats 5. The length of the telescopic rods 18 can be changed according to the spacing between the brackets of the two fixing seats 5. During the cutting process, the cut accessories can fall onto the plurality of telescopic rods 18 to avoid falling onto the threaded rod 9 and damaging the threaded rod 9, thereby protecting the threaded rod 9.

[0041] A powerful fan 19 is fixedly installed in the installation groove. The powerful fan 19 is located on one side of the two fixed seats 5. A waste chip opening 20 is opened on the inner wall of the placement groove. A dust cover 21 is fixedly installed on the surface of the powerful fan 19. When the powerful fan 19 is started, a large suction force can be generated on one side of the placement groove, which can suck away and collect the smoke generated in the cutting process to prevent the smoke from spreading into the air and polluting the environment. At the same time, under the action of suction, the generated waste chips will also move back to the dust cover 21. The dust cover 21 can prevent the waste chips from entering the powerful fan 19, affecting the use of the powerful fan 19. The waste chips moved to the dust cover 21 will enter the waste chip opening 20 and be discharged and collected from the placement groove to prevent the generated waste chips from affecting the cutting of the plate.

[0042] A reciprocating screw 22 is horizontally rotatably installed on the powerful fan 19, a moving seat 23 is threadedly sleeved on the reciprocating screw 22, a fixed column 24 is fixedly installed on the moving seat 23, a scraper rod 25 is rotatably connected to the fixed column 24, a strip hole 26 is opened on the scraper rod 25, a slide rail 27 is fixedly installed on the lower surface of the dust cover 21, a slider 28 is slidably installed on the slide rail 27, a connecting column 29 is fixedly installed on the slider 28, one end of the connecting column 29 is slidably installed in the strip hole 26, and a transmission component for driving the reciprocating screw 22 to rotate is provided on the dust cover 21.

[0043] While generating suction, the transmission assembly drives the reciprocating screw rod 22 to rotate, and under the action of the reciprocating thread, the moving seat 23 is driven to move above the dust cover 21. During the movement of the moving seat 23, the lower surface slides in contact with the upper surface of the dust cover 21, thereby limiting the rotation of the moving seat 23 during the movement. During the movement of the moving seat 23, the slider 28 will not slide first due to the friction between the slider and the slide rail 27, and will pull the scraper rod 25 through the fixed column 24. At the same time, the scraper rod 25 rotates, and the connecting column 29 will Sliding occurs in the strip hole 26 until the connecting column 29 moves to the lowermost end of the strip hole 26, and the slider 28 will overcome the friction and slide on the slide rail 27. At this time, the scraper rod 25 is in an inclined state when moving. During the movement, the scraper rod 25 will clean the debris adsorbed on the surface of the dust cover 21. At the same time, since the scraper rod 25 is in an inclined state, during the cleaning process, it is easy for waste chips to fall from the dust cover 21 into the waste chip opening 20, thereby cleaning the surface of the dust cover 21 and avoiding waste chips from being adsorbed on the surface of the dust cover 21, which affects the use of the powerful fan 19.

[0044] The transmission assembly includes a rotating shaft 30 horizontally mounted in the dust cover 21, a plurality of V-shaped plates 31 fixedly mounted on the rotating shaft 30, and a linkage component. The rotating shaft 30 is located between the dust cover 21 and the powerful fan 19. The linkage component is used for the rotating shaft 30 to drive the reciprocating screw rod 22 to rotate. The linkage component includes a driving wheel 32 fixedly sleeved on the rotating shaft 30, a driven wheel 33 fixedly sleeved on the reciprocating screw rod 22, and a transmission belt 34 sleeved on the driving wheel 32 and the driven wheel 33.

[0045] When the powerful fan 19 is in operation, the V-shaped plate 31 will drive the rotating shaft 30 to rotate under the influence of wind resistance, and then drive the driving wheel 32 to rotate through the rotating shaft 30, and under the transmission of the transmission belt 34, it can drive the driven wheel 33 to rotate, thereby driving the reciprocating screw rod 22 to rotate through the driven wheel 33, thereby realizing the reciprocating movement of the moving seat 23.

[0046] In the present invention, when cutting the plate, the plate is first placed between the two fixed seats 5, and then the driving motor 10 is driven to drive the threaded rod 9 to rotate, thereby driving the two fixed seats 5 to approach each other through the moving block 4, and at the same time, the strip plate 15 installed on the fixed seat 5 will contact one end of the plate, and drive the cross bar 16 to move toward the transmission rod 8 through the sliding rod 14. When the cross bar 16 moves toward the transmission rod 8, it will drive the transmission rod 8 to rotate upward, and then drive the pressing block 7 to move downward through the transmission rod 8 and the pressing rod 6, and approach the upper surface of the plate until it contacts the upper surface of the plate. At the same time, the two fixed seats 5 clamp the plate in the middle to play a clamping and fixing role. The pressing block 7 applies pressure on the upper surface of the plate to limit the upper part of the plate, thereby playing a good fixing role, avoiding the position of the plate from shifting during the processing, and effectively improving the cutting accuracy.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixed structure of a CNC plasma cutting machine, comprising an operating table (1), characterized in that: A gantry (2) is installed on the operating table (1), and a plasma cutting mechanism (3) is slidably installed on the gantry (2); The operating table (1) is provided with a placement groove, in which a moving block (4) is symmetrically slidably installed, and the operating table (1) is provided with a driving assembly for driving the two moving blocks (4) to move relative to each other, and an L-shaped fixing seat (5) is fixedly installed on each of the two moving blocks (4); A pressure rod (6) is symmetrically rotatably mounted on the fixed seat (5) via a torsion assembly, a pressure block (7) is fixedly mounted on one end of the pressure rod (6), and a transmission rod (8) is fixedly mounted on the other end, and a rotating assembly for driving the transmission rod (8) to rotate is provided on the fixed seat (5).

2. The fixing structure of a CNC plasma cutting machine according to claim 1, characterized in that: The driving assembly comprises a threaded rod (9) with opposite spiral directions at the left and right ends thereof which is horizontally rotatably mounted in a placement groove and a driving motor (10) which is fixedly mounted on the side of the operating table (1); one end of the threaded rod (9) passes through the placement groove and is fixedly connected to the output shaft of the driving motor (10); and the two moving blocks (4) are symmetrically threadedly sleeved on the threaded rod (9).

3. The fixing structure of a CNC plasma cutting machine according to claim 1, characterized in that: A mounting hole is provided in the middle of the pressure rod (6), and the torsion assembly comprises a rotating shaft (11) fixedly mounted in the mounting hole, two mounting blocks (12) respectively fixedly mounted at two ends of the rotating shaft (11), and two torsion springs (13) symmetrically sleeved on the rotating shaft (11), the two mounting blocks (12) are both fixedly mounted on the fixing seat (5), and the two ends of the torsion spring (13) are respectively fixedly connected to the pressure rod (6) and the mounting blocks (12).

4. The fixing structure of a CNC plasma cutting machine according to claim 1, characterized in that: The fixed seat (5) is symmetrically provided with sliding holes, and the rotating assembly comprises two sliding rods (14) respectively slidably mounted in the two sliding holes, a strip plate (15) fixedly mounted at one end of the two sliding rods (14), a cross bar (16) fixedly mounted at the other end of the two sliding rods (14), and two telescopic springs (17) respectively sleeved on the two sliding rods (14), the two ends of the telescopic spring (17) being respectively fixedly connected to the fixed seat (5) and the cross bar (16), and the cross bar (16) is in sliding contact with the transmission rod (8).

5. The fixing structure of a CNC plasma cutting machine according to claim 2, characterized in that: A plurality of telescopic rods (18) are fixedly mounted between the two fixing seats (5), the number of the telescopic rods (18) being no less than ten, and the telescopic rods (18) are located directly above the threaded rod (9).

6. The fixing structure of a CNC plasma cutting machine according to claim 1, characterized in that: A powerful fan (19) is fixedly installed in the installation groove, and the powerful fan (19) is located on one side of the two fixed seats (5). A waste chip opening (20) is opened on the inner wall of the placement groove, and a dust cover (21) is fixedly installed on the surface of the powerful fan (19).

7. The fixing structure of a CNC plasma cutting machine according to claim 6, characterized in that: A reciprocating screw (22) is horizontally rotatably mounted on the powerful fan (19), a movable seat (23) is threadedly sleeved on the reciprocating screw (22), a fixed column (24) is fixedly mounted on the movable seat (23), a scraper rod (25) is rotatably connected to the fixed column (24), a strip hole (26) is provided on the scraper rod (25), a slide rail (27) is fixedly mounted on the lower surface of the dust cover (21), a slider (28) is slidably mounted on the slide rail (27), a connecting column (29) is fixedly mounted on the slider (28), one end of the connecting column (29) is slidably mounted in the strip hole (26), and a transmission component for driving the reciprocating screw (22) to rotate is provided on the dust cover (21).

8. The fixing structure of a CNC plasma cutting machine according to claim 7, characterized in that: The transmission assembly comprises a rotating shaft (30) mounted horizontally and rotatably in a dust cover (21), a plurality of V-shaped plates (31) fixedly mounted on the rotating shaft (30), and a linkage component. The rotating shaft (30) is located between the dust cover (21) and the powerful fan (19). The linkage component is used for the rotating shaft (30) to drive the reciprocating screw (22) to rotate.

9. The fixing structure of a CNC plasma cutting machine according to claim 8, characterized in that: The linkage component comprises a driving wheel (32) fixedly sleeved on a rotating shaft (30), a driven wheel (33) fixedly sleeved on a reciprocating screw rod (22), and a transmission belt (34) sleeved on the driving wheel (32) and the driven wheel (33).

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