Numerical control cutting combined machine tool

Abstract

The invention relates to the technical field of numerical control machine tools, and discloses a numerical control cutting combined machine tool which comprises a cutting machine tool body, a cutting table is slidably connected to the side wall of the cutting machine tool body, an electric cylinder is fixedly connected to the bottom of the cutting table, and a limiting frame is arranged at the bottom of the cutting table; the cutting machine tool body is started to control the cutting table and the plasma cutting torch to slide to cut the metal plate, meanwhile, the electric cylinder is started to stretch out to push the balls and the pressing rollers to descend to make contact with the metal plate, the multiple balls extrude the metal plate, and when the cutting table moves, the multiple pressing rollers are driven by the rolling assembly to rotate to roll the metal plate. By means of multi-point extrusion of the frame-shaped pressing plate and the balls, the cut area of the metal plate is kept flat, meanwhile, the metal plate around the frame-shaped pressing plate is rolled in advance, large deformation of the metal plate is avoided, and the situation that the cut area of the metal plate is deformed, errors of the cutting size are caused, and the cutting precision is affected is effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tool equipment, in particular to a numerical control cutting combined machine tool. BACKGROUND

[0002] The numerical control cutting combined machine tool refers to integrating multiple cutting processes into a machine tool platform controlled by a computer numerical control system, realizing diversified, efficient and high-precision cutting processing of workpieces. The cutting methods include flame cutting, plasma cutting, laser cutting and water jet cutting. High-precision and automated metal plate contour cutting is realized by relying on servo motors, precise transmission (ball screw, gear and rack), reliable motion control cards / systems (based on industrial computers or special controllers) and mature G code programming.

[0003] The main cutting object of the plasma numerical control cutting machine tool is often metal plates. However, metal plates need to be stacked during transportation and storage, which causes the metal plates to be squeezed. Thin metal plates may be deformed due to squeezing, which may cause local indentation or bending of the metal plates, resulting in size deviation of the cut workpiece and affecting the processing precision when the machine tool cuts the thin plates. SUMMARY

[0004] To solve the above technical problems, the present application provides a numerical control cutting combined machine tool, which comprises a cutting machine tool main body, a cutting table slidably connected to the side wall of the cutting machine tool main body, and an electric cylinder fixedly connected to the bottom of the cutting table. A cutting mechanism is slidably arranged on the side wall of the cutting mechanism, and a driving assembly is installed on the bottom of the sliding assembly. The sliding assembly is used for cutting metal plates. A flattening mechanism is installed on the bottom of the sliding assembly and is used for flattening the metal plate to be cut. A reciprocating mechanism is located on the side wall of the flattening mechanism and is used for reducing the vibration generated when the metal plate is cut. A limiting frame is arranged on the bottom of the cutting table, a frame-shaped pressing plate is arranged on the bottom of the limiting frame, four sliding frames are slidably connected to the inner wall of the limiting frame, and a pressing roller is rotatably connected to the inner wall of each of the four sliding frames. The metal plate to be cut is placed on the top of the cutting machine tool main body, then the cutting mechanism is started to cut the metal plate. During the cutting process, the flattening mechanism is used to flatten the metal plate, effectively preventing deformation of the cut area of the metal plate and causing errors in the cutting size, which affects the cutting accuracy. Finally, the reciprocating mechanism is used to reduce the vibration generated when the metal plate is cut.

[0005] Preferably, the cutting mechanism comprises: The sliding assembly is arranged at the inner wall of the sliding assembly and the side wall of the cutting machine body to change the cutting position. The driving assembly is arranged at the top of the driving assembly and the bottom of the cutting table to drive the flattening mechanism to descend. When the metal plate needs to be cut, the cutting machine body is started to drive the cutting device to move and cut the metal plate. At the same time, the driving assembly drives the flattening mechanism to descend to press the metal plate around the cutting device.

[0006] Preferably, the flattening mechanism comprises: The extrusion assembly is arranged at the inner wall of the limiting frame to extrude the metal plate. The rolling assembly is arranged at the side wall of the pressure roller by the fixing member to roll the metal plate. The fixing member comprises a concave-convex ring fixedly connected to the side wall of the pressure roller, and the inner wall of each of the four sliding frames is slidably connected to a push rod. When the metal plate is cut, the driving assembly drives the extrusion assembly to descend to extrude the metal plate around the cutting device, and at the same time, the rolling assembly rolls on the surface of the metal plate to pre-press the metal plate around the extrusion assembly, so that the metal plate does not deform too much. The relatively thin metal plate has strong elasticity, and after the rolling assembly is extruded and separated from the extruded metal plate, it will rebound.

[0007] Preferably, the reciprocating mechanism comprises: The air jet assembly is arranged at the side wall of the sliding frame by the support member to jet gas and remove impurities on the surface of the rolling assembly. The support member comprises a gas pressure frame fixedly connected to the side wall of the sliding frame, and the inner wall of each of the four gas pressure frames is slidably connected to a spring extrusion plate. The damping assembly is arranged at the side wall of the limiting frame by the connecting member to reduce the vibration generated when the metal plate is cut. The connecting member comprises four piston rods fixedly connected to the side wall of the limiting frame, and the top of the frame-shaped pressing plate is fixedly connected to four fixed cylinders. When the rolling assembly moves, the air jet assembly inside the rolling assembly jets gas towards the rolling assembly to remove impurities on the surface of the rolling assembly, effectively preventing impurities generated when the metal plate is cut from adhering to the surface of the pressure roller when the pressure roller moves, causing the surface of the pressure roller to be uneven. At the same time, the damping assembly reduces the vibration generated when the metal plate is cut, effectively preventing the vibration generated when the pressure roller rolls the metal plate from being transmitted to the cutting area, which may cause the cut to have a wavy pattern.

[0008] Preferably, the sliding assembly comprises a plasma torch slidably connected to the inner wall of the cutting table. The driving assembly comprises two limiting rods fixedly connected to the top of the limiting frame, the outer walls of the two limiting rods are slidably connected to the inner walls of the cutting table, and the bottom output end of the electric cylinder is fixedly connected to the top of the limiting frame. Wherein, the operator places the metal plate to be cut on the top of the cutting machine main body, then starts the cutting machine main body to control the cutting table and the plasma torch to slide, and then starts the plasma torch to cut the metal plate.

[0009] Preferably, the extrusion assembly comprises four spring return rods fixedly connected to the top of the frame-shaped pressing plate, the outer walls of the four spring return rods are slidably connected to the inner walls of the limiting frame, and the bottom of the frame-shaped pressing plate is rotatably connected to a plurality of ball bearings. Wherein, when cutting the metal plate, the electric cylinder is started to extend, the limiting frame, the frame-shaped pressing plate and the ball bearings are pushed down, the ball bearings are in contact with the metal plate, and when the limiting frame is lowered, the sliding frame and the pressing roller are also lowered. When the ball bearings come into contact with the metal plate, the limiting frame continues to descend, so that the limiting frame extrudes the spring return rod to accumulate the elastic force, thereby increasing the extrusion force of the plurality of ball bearings on the metal plate, and the metal plate is subjected to multi-point extrusion until the pressing roller comes into contact with the metal plate.

[0010] Preferably, the roller pressing assembly comprises a fixed block fixedly connected to the side wall of the frame-shaped pressing plate, a spring rod fixedly connected to one side of each of the four sliding frames, and the outer walls of the four spring rods are slidably connected to the inner walls of the limiting frame. Wherein, when the cutting table moves, the limiting frame moves, thereby moving the frame-shaped pressing plate and the pressing roller, so that the ball bearings continuously extrude the metal plate around the plasma torch. When the cutting machine main body controls the cutting table to move longitudally, the pressing rollers on the left and right sides are affected by the frictional force between them and the metal plate, and the pressing rollers rotate to drive the concave-convex ring to rotate. When the convex position of the concave-convex ring on the left and right sides comes into contact with the push rod, the push rod moves, and the push rods on the left and right sides move towards the fixed blocks on the front and back sides, thereby moving the fixed blocks, driving the sliding frames and the pressing rollers on the front and back sides to move, and the spring rods are extruded to accumulate the elastic force. When the convex positions of the concave-convex rings on the left and right sides are separated from the push rod, the elastic force of the spring rods on the front and back sides is released, so that the sliding frames and the pressing rollers are reset. When the pressing rollers on the front and back sides move, they are affected by the frictional force between them and the metal plate and rotate. When the cutting machine main body controls the cutting table to move transversely, it drives the pressing rollers on the front and back sides to rotate, extrudes the push rod through the concave-convex ring, and moves the sliding frames and the pressing rollers on the left and right sides. Therefore, the plurality of compression rollers reciprocate multiple times around the frame-shaped pressing plate to compress the metal plate and eliminate the internal stress of the metal plate, so that the metal plate is flat, and the frame-shaped pressing plate and the plasma torch with multiple ball extrusion extrude the metal plate around to keep the cutting area of the metal plate flat, and the metal plate is compressed around the frame-shaped pressing plate in advance to avoid large deformation of the metal plate, and the thinner metal plate has strong elasticity, and the ball and the extruded metal plate are extruded and separated, which can rebound, effectively prevent the cutting area of the metal plate from deforming and causing cutting size error and affecting cutting accuracy.

[0011] Preferably, the air injection assembly comprises connecting rods slidingly connected to the inner wall of the sliding frame, and the side walls of the four connecting rods are rotatably connected with connecting rods.

[0012] Preferably, the air injection assembly comprises a plurality of air holes opened in the inner wall of the air pressure frame, and the inner wall of the four air pressure frames is slidingly connected with spring plug plates, and the inner wall of the four air pressure frames is fixedly connected with arc-shaped air injection plates. When the concave-convex ring rotates, the convex position of the concave-convex ring will extrude the connecting rod to move, the connecting rod will push the connecting rod to rotate, and the connecting rod will push the spring extrusion plate to descend, and when the spring extrusion plate descends beyond the air hole, the gas in the air pressure frame will be extruded, and at this time, the extruded gas will be blocked by the spring plug plate, so the gas pressure will continue to rise, and with the continuous movement of the spring extrusion plate, the convex position of the spring extrusion plate will contact the spring plug plate, which will push the spring plug plate to descend and cancel the blockage of the gas. At this time, the high-pressure gas will enter the arc-shaped air injection plate and be sprayed onto the surface of the compression roller through the arc-shaped air injection plate, thereby effectively preventing impurities generated during cutting of the metal plate from adhering to the surface of the compression roller, causing unevenness of the surface of the compression roller, and affecting the extrusion effect of the compression roller on the metal plate.

[0013] Preferably, the slowing down assembly comprises a special-shaped groove opened in the inner wall of the fixed cylinder, the outer wall of the four piston rods is slidingly connected with the inner wall of the four fixed cylinders, the inner wall of the four fixed cylinders is provided with hydraulic oil, and the inner wall of the four fixed cylinders is throughly connected with a communication pipe. Wherein, in order to solve the problem that the thin metal plate has elasticity, the deformation position needs to be extruded by the pressure roller multiple times, and after each extrusion and separation, the metal plate will rebound, which is easy to cause the metal plate to vibrate, when the frame type pressure plate drives the ball to contact the metal plate, and the limiting frame continues to descend, the piston rod will also descend, extruding the hydraulic oil in the fixed cylinder, pushing the hydraulic oil into the top of the piston rod through the special-shaped groove and the communication pipe, when the metal plate vibrates, the vibration will be transmitted to the ball and the frame type pressure plate, when the frame type pressure plate vibrates upward, the frame type pressure plate will drive the air pressure frame to move, the air pressure frame will extrude the hydraulic oil in the air pressure frame, and the hydraulic oil will enter the communication pipe through the special-shaped groove, but because the special-shaped groove has a complex flow channel, the flow resistance of the hydraulic oil will be increased, so that the vibration generated by the fixed cylinder can be absorbed, thereby slowing down the movement of the ball and reducing the vibration amplitude of the metal plate, effectively preventing the vibration generated when the pressure roller extrudes the deformation position of the metal plate from being transmitted to the cutting area, which may cause the wave pattern of the cutout and affect the neatness of the cutout.

[0014] The present application has the following advantages: (1) When the present application is used, the operator places the metal plate to be cut on the top of the cutting machine bed body, then starts the cutting machine bed body to control the cutting table and the plasma torch to slide, and then starts the plasma torch to cut the metal plate, at the same time, the electric cylinder is extended to push the driving assembly and the extruding assembly to descend, so that the ball and the pressure roller descend to contact the metal plate, and the plurality of balls extrude the metal plate, when the cutting table moves, the plurality of pressure rollers are driven to rotate by the roller extruding assembly to extrude the metal plate, thereby eliminating the internal stress of the metal plate and making the metal plate flat, the metal plate around the frame type pressure plate is extruded by the ball, so that the cut area of the metal plate remains flat, at the same time, the metal plate around the frame type pressure plate is extruded in advance to avoid large deformation of the metal plate, and the thin metal plate has strong elasticity, so that the rebound of the ball and the extruded metal plate after extrusion and separation can effectively prevent the deformation of the cut area of the metal plate and cause the cutting size to have errors, thereby affecting the cutting accuracy.

[0015] (2) When the concave-convex ring rotates, the convex position of the concave-convex ring will extrude the connecting rod to move, the gas in the air pressure frame is extruded by the air jet assembly to increase the gas pressure, until the spring extrusion plate pushes the spring block plate to descend, thereby canceling the blockage of the gas, at this time, the high-pressure gas will enter the arc-shaped air jet plate, and the arc-shaped air jet plate will spray the surface of the pressure roller to remove the impurities attached to the surface of the pressure roller, thereby effectively preventing the impurities generated when the metal plate is cut from being attached to the surface of the pressure roller when the pressure roller moves, so as to affect the extrusion effect of the pressure roller on the metal plate.

[0016] (3) The present application is to solve the problem that the thin metal plate will rebound after each compression and separation of the compression roller, which is easy to cause the vibration of the metal plate. When the metal plate vibrates, the vibration will be transmitted to the damping assembly, which will absorb the vibration generated by the fixed cylinder, reducing the vibration amplitude of the metal plate. This effectively prevents the vibration generated when the compression roller presses the metal plate deformation position from being transmitted to the cutting area, which may cause the wave pattern of the cutout and affect the neatness of the cutout.

[0017] (4) When the cutting machine main body controls the cutting table and the plasma torch to cut the metal plate, the multiple compression rollers rotate on the surface of the metal plate to avoid being dragged, increasing the friction between them. At the same time, the high-pressure gas sprayed by the arc-shaped air jet plate against the contact surface of the compression roller and the metal plate will form a gas film on the surface of the two, reducing the friction between them. This effectively prevents the deformation of the compression roller when it extrudes the metal plate from increasing the friction between the deformation position and the compression roller, which may drag the metal plate to move and change the cutting position. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the cutting machine main body of the present application; Figure 4 It is a schematic diagram of the cutting machine main body of the present application; Figure 5 It is a schematic diagram of the cutting machine main body of the present application; Figure 6 It is a schematic diagram of the cutting machine main body of the present application; Figure 7 It is a schematic diagram of the cutting machine main body of the present application; Figure 8 It is a schematic diagram of the cutting machine main body of the present application; Figure 7 It is a schematic diagram of the cutting machine main body of the present application; Figure 9 It is a schematic diagram of the cutting machine main body of the present application; Figure 7 It is a schematic diagram of the cutting machine main body of the present application; Figure 10It is a top view schematic diagram of the sliding frame of the present application; Figure 11 It is a right view sectional view schematic diagram of the sliding frame of the present application; Figure 12 It is a top view schematic diagram of the sliding frame of the present application; Figure 11 It is an enlarged schematic diagram at C of the present application; Figure 13 It is an enlarged schematic diagram at D of the present application. Figure 11

[0020] In the drawings, the components represented by each reference numeral are listed as follows: In the drawings: 1, cutting mechanism; 11, sliding assembly; 12, driving assembly; 111, cutting machine body; 112, cutting table; 113, plasma torch; 121, electric cylinder; 122, limiting frame; 123, limiting rod; 2, flattening mechanism; 21, extrusion assembly; 22, roller assembly; 211, frame-shaped pressing plate; 212, spring return rod; 213, ball; 221, sliding frame; 222, pressing roller; 223, concave-convex ring; 224, pushing rod; 225, fixed block; 226, spring rod; 3, reciprocating mechanism; 31, air jet assembly; 32, deceleration assembly; 311, air pressure frame; 312, spring extrusion plate; 313, connecting rod; 314, connecting rod; 315, air hole; 316, spring plug plate; 317, arc-shaped air jet plate; 321, fixed cylinder; 322, piston rod; 323, special-shaped groove; 324, communication pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Embodiment one, please refer to Figures 1-5 The present application is a numerical control cutting combined machine tool, which comprises a cutting machine body 111, a cutting table 112 is slidably connected to the side wall of the cutting machine body 111, and an electric cylinder 121 is fixedly connected to the bottom of the cutting table 112; The cutting mechanism 1 is provided with a sliding assembly 11 at the side wall of the cutting mechanism 1, and the bottom of the sliding assembly 11 is provided with a driving assembly 12, and the sliding assembly 11 is used for cutting metal plates; The flattening mechanism 2 is installed at the bottom of the sliding assembly 11 and is used for flattening the metal plate to be cut; and The reciprocating mechanism 3 is located at the side wall of the flattening mechanism 2 and is used for reducing the vibration generated when the metal plate is cut; ​The bottom of the cutting table 112 is provided with a limiting frame 122, the bottom of the limiting frame 122 is provided with a frame-shaped pressing plate 211, the inner wall of the limiting frame 122 is slidably connected with four sliding frames 221, and the inner wall of each of the four sliding frames 221 is rotatably connected with a pressing roller 222; Wherein, the metal plate to be cut is placed on the top of the cutting machine tool body 111, then the cutting mechanism 1 is started to cut the metal plate, during the cutting process, the metal plate is leveled by the leveling mechanism 2, effectively preventing the deformation of the cut area of the metal plate, causing the cutting size to have errors, affecting the cutting accuracy, finally, the vibration of the metal plate during cutting is reduced by the reciprocating mechanism 3.

[0023] The cutting mechanism 1 comprises: A sliding assembly 11, which is slidably arranged at the inner wall of the sliding assembly 11 and the side wall of the cutting machine tool body 111, is used to change the cutting position; A driving assembly 12, which is fixedly arranged at the top of the driving assembly 12 and the bottom of the cutting table 112, is used to drive the leveling mechanism 2 to descend; Wherein, when the metal plate needs to be cut, the cutting machine tool body 111 is started to drive the cutting instrument to move and cut the metal plate, at the same time, the driving assembly 12 drives the leveling mechanism 2 to descend and press the metal plate around the cutting instrument.

[0024] The leveling mechanism 2 comprises: An extrusion assembly 21, which is slidably arranged at the inner wall of the limiting frame 122, is used to extrude the metal plate; A roller pressing assembly 22, which is fixedly arranged at the side wall of the pressing roller 222 by a fixing member, is used to roll the metal plate; The fixing member comprises a concave-convex ring 223 fixedly connected to the side wall of the pressing roller 222, and a pushing rod 224 slidably connected to the inner wall of each of the four sliding frames 221; Wherein, when the metal plate is cut, the driving assembly 12 drives the extrusion assembly 21 to descend and extrude the metal plate around the cutting instrument, at the same time, the roller pressing assembly 22 is driven to roll on the surface of the metal plate to pre-press the metal plate around the extrusion assembly 21, so as to avoid the metal plate from being deformed too much, and the thinner metal plate has strong elasticity and will rebound after the roller pressing assembly 22 is separated from the extruded metal plate.

[0025] The reciprocating mechanism 3 comprises: A gas injection assembly 31, which is fixedly arranged at the side wall of the sliding frame 221 by a support member, is used to inject gas to remove impurities on the surface of the roller pressing assembly 22; The support member comprises air pressure frames 311 fixedly connected to the side walls of the sliding frame 221, and spring extrusion plates 312 are slidably connected to the inner walls of the four air pressure frames 311; The damping assembly 32 is fixedly arranged at the side wall of the limiting frame 122 through the connecting member, and is used for reducing the vibration generated when the metal plate is cut; The connecting member comprises four piston rods 322 fixedly connected to the side wall of the limiting frame 122, and the top of the frame-shaped pressing plate 211 is fixedly connected with four fixed cylinders 321. When the roller pressing assembly 22 moves, the gas injection assembly 31 inside sprays gas against the roller pressing assembly 22 to remove impurities on the surface of the roller pressing assembly 22, effectively preventing impurities generated when the metal plate is cut from adhering to the surface of the pressing roller 222 when the pressing roller 222 moves, causing the surface of the pressing roller 222 to be uneven. At the same time, the damping assembly 32 reduces the vibration generated when the metal plate is cut, effectively preventing the vibration generated when the pressing roller 222 presses the metal plate from being transmitted to the cutting area, which may cause the cut to have a wavy pattern.

[0026] Embodiment two, please refer to Figures 1-13 The present application is a numerical control cutting combined machine tool, which is based on example one, and the sliding assembly 11 comprises a plasma torch 113 slidably connected to the inner wall of the cutting table 112. The driving assembly 12 comprises two limiting rods 123 fixedly connected to the top of the limiting frame 122, the outer walls of the two limiting rods 123 are slidably connected to the inner wall of the cutting table 112, and the bottom output end of the electric cylinder 121 is fixedly connected to the top of the limiting frame 122. Wherein, the operator places the metal plate to be cut on the top of the cutting machine tool main body 111, then starts the cutting machine tool main body 111 to control the sliding of the cutting table 112 and the plasma torch 113, and then starts the plasma torch 113 to cut the metal plate.

[0027] The extrusion assembly 21 comprises four spring return rods 212 fixedly connected to the top of the frame-shaped pressing plate 211, the outer walls of the four spring return rods 212 are slidably connected to the inner wall of the limiting frame 122, and the bottom of the frame-shaped pressing plate 211 is rotatably connected with a plurality of ball bearings 213. Wherein, when cutting the metal plate, the electric cylinder 121 is started to extend, pushing the limiting frame 122, the frame-shaped pressing plate 211 and the ball bearings 213 to descend, so that the ball bearings 213 contact the metal plate. When the limiting frame 122 descends, it also drives the sliding frame 221 and the pressing roller 222 to descend. When the ball bearings 213 contact the metal plate, the limiting frame 122 continues to descend, so that the limiting frame 122 extrudes the spring return rod 212 to accumulate the elastic force, thereby increasing the extrusion force of the plurality of ball bearings 213 on the metal plate, and performing multi-point extrusion on the metal plate until the pressing roller 222 contacts the metal plate.

[0028] The roller pressing assembly 22 comprises a fixed block 225 fixedly connected at the side wall of the frame-shaped pressing plate 211, four sliding frames 221 are fixedly connected with spring rods 226 near one side of the frame-shaped pressing plate 211, and the outer walls of the four spring rods 226 are slidably connected with the inner walls of the limiting frame 122; When the cutting table 112 moves, the limiting frame 122 is driven to move, so that the frame-shaped pressing plate 211 and the pressing rollers 222 move, and the rolling balls 213 continuously extrude the metal plate around the plasma cutting torch 113. When the cutting machine main body 111 controls the cutting table 112 to move towards the direction of the middle G, the pressing rollers 222 on the left side and the right side are affected by the friction force between them and the metal plate, and the pressing rollers 222 rotate to drive the concave-convex rings 223 to rotate. When the convex position of the concave-convex ring 223 contacts the push rod 224, the push rod 224 is driven to move, and the push rod 224 on the left side and the right side moves towards the fixed block 225 on the front side and the back side, respectively, so as to drive the fixed block 225 to move, and drive the sliding frame 221 and the pressing roller 222 on the front side and the back side to move, as shown in the figure, so that the spring rod 226 is extruded and accumulates elastic force. Figure 3 When the convex position of the concave-convex ring 223 on the left side and the right side is separated from the push rod 224, the elastic force of the spring rod 226 on the front side and the back side is released, so that the sliding frame 221 and the pressing roller 222 are reset. When the pressing roller 222 on the front side and the back side moves, it is affected by the friction force with the metal plate and rotates. When the cutting machine main body 111 controls the cutting table 112 to move towards the direction of the middle H, the pressing roller 222 on the front side and the back side is driven to rotate, and the concave-convex ring 223 extrudes the push rod 224 to move, so that the sliding frame 221 and the pressing roller 222 on the left side and the right side move. Figure 10 Thus, the plurality of pressing rollers 222 move back and forth around the frame-shaped pressing plate 211 multiple times, and press the metal plate to eliminate the internal stress of the metal plate and make the metal plate flat. The metal plate around the plasma cutting torch 113 is extruded by the frame-shaped pressing plate 211 and the rolling balls 213, so that the cut area of the metal plate remains flat. In addition, the metal plate around the frame-shaped pressing plate 211 is pressed in advance to avoid large deformation of the metal plate. The metal plate has strong elasticity, and the rolling ball 213 and the extruded metal plate are separated after extrusion, which can effectively prevent the deformation of the cut area of the metal plate and cause errors in the cutting size, affecting the cutting accuracy. Figure 3

[0029] ​​​The jet assembly 31 includes connecting rods 313 slidably connected to the inner wall of the sliding frame 221, connecting rods 314 rotatably connected to the side walls of the four connecting rods 313, and the tops of the four spring compression plates 312 are rotatably connected to the inner walls of the four connecting rods 314.

[0030] The jet assembly 31 includes several air holes 315 opened on the inner wall of the air pressure frame 311, spring blocking plates 316 are slidably connected to the inner walls of the four air pressure frames 311, and arc-shaped jet plates 317 are fixedly connected to the inner walls of the four air pressure frames 311. When the concave-convex ring 223 rotates, the protruding part of the concave-convex ring 223 will squeeze the connecting rod 313 to move. The connecting rod 313 will push the connecting rod 314 to rotate, causing the connecting rod 314 to push the spring compression plate 312 to descend. When the spring compression plate 312 descends past the air hole 315, it will squeeze the gas in the air pressure frame 311. At this time, the squeezed gas will be blocked by the spring blocking plate 316, so the gas pressure will continue to rise. As the spring compression plate 312 continues to move, the protruding part of the spring compression plate 312 will contact the spring blocking plate 316, such as... Figure 12 As shown in position I, the spring blocking plate 316 will be pushed down, removing the obstruction to the gas. At this time, the high-pressure gas will enter the arc-shaped jet plate 317 and spray out onto the surface of the pressure roller 222 through the arc-shaped jet plate 317, removing impurities attached to the surface of the pressure roller 222. This effectively prevents impurities generated when the metal sheet is cut from adhering to the surface of the pressure roller 222 when the pressure roller 222 moves, causing unevenness on the surface of the pressure roller 222 and affecting the squeezing effect of the pressure roller 222 on the metal sheet.

[0031] The damping component 32 includes a shaped groove 323 formed on the inner wall of the fixed cylinder 321, the outer walls of the four piston rods 322 are slidably connected to the inner walls of the four fixed cylinders 321, the inner walls of the four fixed cylinders 321 are provided with hydraulic oil, and the inner walls of the four fixed cylinders 321 are connected through a connecting pipe 324. Wherein, in order to solve the problem that the deformation amplitude of the metal plate is large in the extrusion area of the compression roller 222, the thin metal plate has elasticity, the deformation position needs to be extruded by the compression roller 222 multiple times, and after each extrusion and separation of the compression roller 222, the metal plate will rebound, which is easy to cause the vibration of the metal plate. When the frame-shaped pressing plate 211 drives the ball 213 to contact the metal plate, and the limiting frame 122 continues to descend, it will also drive the piston rod 322 to descend, extruding the hydraulic oil in the fixed cylinder 321, pushing the hydraulic oil to enter the top of the piston rod 322 through the special-shaped groove 323 and the communication pipe 324. When the metal plate vibrates, the vibration will be transmitted to the ball 213 and the frame-shaped pressing plate 211. When the frame-shaped pressing plate 211 vibrates upward, the frame-shaped pressing plate 211 will drive the air pressure frame 311 to move, and the air pressure frame 311 will extrude the hydraulic oil in its own body and enter the communication pipe 324 through the special-shaped groove 323. However, due to the complex flow channel of the special-shaped groove 323, the flow resistance of the hydraulic oil will be increased, which will absorb the vibration generated by the fixed cylinder 321, thereby slowing down the movement of the ball 213 and reducing the vibration amplitude of the metal plate, effectively preventing the vibration generated when the compression roller 222 extrudes the deformation position of the metal plate from being transmitted to the cutting area, which may cause the wave pattern of the cutout and affect the neatness of the cutout.

[0032] The number of the above components is not limited, and those skilled in the art can freely set according to actual needs, as long as the components are installed at the corresponding connection positions.

[0033] One specific application of the embodiment is that when the cutting machine bed body 111 is used, the operator places the metal plate to be cut on the top of the cutting machine bed body 111, then starts the cutting machine bed body 111 to control the cutting table 112 and the plasma torch 113 to slide, then starts the plasma torch 113 to cut the metal plate, at the same time, starts the electric cylinder 121 to extend and push the limiting frame 122, the frame-shaped pressing plate 211 and the ball 213 to descend, so that the ball 213 contacts the metal plate. When the limiting frame 122 descends, it will also drive the sliding frame 221 and the compression roller 222 to descend. When the ball 213 contacts the metal plate, the limiting frame 122 continues to descend to extrude the spring return rod 212, accumulate the rebound force, increase the extrusion force of the multiple balls 213 on the metal plate, and extrude the metal plate at multiple points until the compression roller 222 contacts the metal plate. When the cutting table 112 moves, it will drive the limiting frame 122 to move, so that the frame-shaped pressing plate 211 and the compression roller 222 move, and the ball 213 continuously extrudes the metal plate around the plasma torch 113. When the cutting machine bed body 111 controls the cutting table 112 to move towards the Figure 3When the middle G is moved, the left and right compression rollers 222 are affected by the friction between the metal plate and the compression rollers 222, and the compression rollers 222 rotate to drive the concave-convex ring 223 to rotate. When the convex position of the concave-convex ring 223 contacts the push rod 224, the push rod 224 is pushed to move, and the left and right push rods 224 move towards the front and back fixed blocks 225, respectively, thereby pushing the fixed blocks 225 to move, driving the front and back sliding frames 221 and the compression rollers 222 to move, as shown in Figure 10 The spring rod 226 is compressed and accumulates elastic force. When the convex position of the left and right concave-convex rings 223 is separated from the push rod 224, the spring rod 226 releases the elastic force, and the sliding frame 221 and the compression roller 222 return to the original position. When the front and back compression rollers 222 move, they are affected by the friction with the metal plate and rotate. When the cutting machine body 111 controls the cutting table 112 to move towards the Figure 3 H direction, the front and back compression rollers 222 rotate, and the concave-convex ring 223 presses the push rod 224 to move, so that the left and right sliding frames 221 and the compression rollers 222 move. Thus, the plurality of compression rollers 222 move around the frame-shaped pressing plate 211 multiple times, and at the same time, the metal plate is rolled to eliminate the internal stress of the metal plate and make the metal plate flat. The metal plate around the plasma torch 113 is pressed by the frame-shaped pressing plate 211 and the ball 213, so that the cut area of the metal plate remains flat. At the same time, by pressing the metal plate around the frame-shaped pressing plate 211 in advance, the metal plate is prevented from deforming too much. The ball 213 and the compressed metal plate are separated, and the ball 213 will rebound, effectively preventing the cut area of the metal plate from deforming and causing cutting size errors, which affects the cutting accuracy. Secondly, when the concave-convex ring 223 rotates, the convex position of the concave-convex ring 223 presses the connecting rod 313 to move, the connecting rod 313 pushes the connecting rod 314 to rotate, and the connecting rod 314 pushes the spring pressing plate 312 to descend. When the spring pressing plate 312 descends beyond the air hole 315, the gas in the air pressure frame 311 is pressed. At this time, the compressed gas is blocked by the spring block plate 316, so the gas pressure continues to rise. With the continuous movement of the spring pressing plate 312, the convex position of the spring pressing plate 312 contacts the spring block plate 316, as shown in Figure 12As shown in position I, the spring blocking plate 316 will be pushed down, removing the obstruction to the gas. At this time, the high-pressure gas will enter the arc-shaped jet plate 317 and spray out onto the surface of the pressure roller 222 through the arc-shaped jet plate 317, removing the impurities attached to the surface of the pressure roller 222. This effectively prevents impurities generated when the metal sheet is cut from adhering to the surface of the pressure roller 222 when the pressure roller 222 moves, causing the surface of the pressure roller 222 to be uneven and affecting the squeezing effect of the pressure roller 222 on the metal sheet. As the concave-convex ring 223 continues to rotate, when the protruding part of the concave-convex ring 223 separates from the connecting rod 313, the thrust on the connecting rod 313 disappears, the rebound force of the spring compression plate 312 is released, allowing it to return to its original position, so that the air hole 315 is connected to the bottom of the spring compression plate 312 again, allowing external gas to enter the air pressure frame 311. Secondly, to address the issue of large deformation areas caused by the pressure roller 222 pressing the metal sheet, since the thin metal sheet is elastic, the deformation location requires repeated pressing by the pressure roller 222. Each time the pressure roller 222 separates the sheet, the metal sheet rebounds, easily causing vibration. After the frame-type pressure plate 211 drives the ball bearing 213 to contact the metal sheet, as the limit frame 122 continues to descend, it also drives the piston rod 322 to descend, compressing the hydraulic oil in the fixed cylinder 321. This pushes the hydraulic oil through the shaped groove 323 and the connecting pipe 324 into the top of the piston rod 322. When the metal sheet vibrates, the vibration is transmitted to the ball bearing 222. When the frame-type pressure plate 211 vibrates upward, it drives the pneumatic frame 311 to move. The pneumatic frame 311 squeezes the hydraulic oil inside itself and enters the connecting pipe 324 through the irregular groove 323. However, since the irregular groove 323 has a complex flow channel, it increases the flow resistance of the hydraulic oil, which absorbs the vibration generated by the fixed cylinder 321, thereby slowing down the movement of the ball 213, reducing the vibration amplitude of the metal sheet, and effectively preventing the vibration generated when the pressure roller 222 rolls the deformed position of the metal sheet from being transmitted to the cutting area, which may cause wavy lines on the cut and affect the neatness of the cut. Secondly, when the cutting machine body 111 controls the cutting table 112 and plasma torch 113 to cut the metal sheet, multiple pressure rollers 222 rotate on the surface of the metal sheet to prevent the cutting table 112 from facing the metal sheet. Figure 3When the middle G moves in a direction, the left and right compression rollers 222 rotate, and the front and back compression rollers 222 are dragged, which causes the front and back compression rollers 222 to form a sliding friction with the surface of the metal plate, increases the friction between them, and the high-pressure gas sprayed by the arc-shaped air jet plate 317 against the compression rollers 222 is sprayed against the contact surface of the compression rollers 222 and the metal plate, which forms a gas film on the surface of the two, reduces the friction between them, effectively prevents the compression rollers 222 from extruding the large deformation part of the metal plate, the deformed part has elasticity, which causes the friction between the metal plate and the compression rollers 222 to increase, and when the compression rollers 222 move, the metal plate may be dragged to move and change the cutting position.

[0034] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and use the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A numerical control cutting combination machine tool, comprising a cutting machine tool body (111), a cutting table (112) is slidingly connected at the side wall of the cutting machine tool body (111), and an electric cylinder (121) is fixedly connected at the bottom of the cutting table (112), characterized in that, Also includes: Cutting mechanism (1), the side wall of the cutting mechanism (1) is slidably provided with a sliding assembly (11), the bottom of the sliding assembly (11) is provided with a driving assembly (12), the sliding assembly (11) is used for cutting metal plate; Leveling mechanism (2), the leveling mechanism (2) is installed at the bottom of the sliding assembly (11), used for leveling the metal plate to be cut; And Reciprocating mechanism (3), the reciprocating mechanism (3) is located at the side wall of the leveling mechanism (2), used for reducing the vibration generated when the metal plate is cut; The bottom of the cutting table (112) is provided with a limiting frame (122), the bottom of the limiting frame (122) is provided with a frame type pressing plate (211), the inner wall of the limiting frame (122) is slidably connected with four sliding frames (221), the inner wall of the four sliding frames (221) is rotatably connected with a pressing roller (222); Wherein, the metal plate to be cut is placed on the top of the cutting machine tool body (111), then the cutting mechanism (1) is started to cut the metal plate, during the cutting process, the metal plate is leveled by the leveling mechanism (2), finally, the vibration generated by the metal plate during cutting is reduced by the reciprocating mechanism (3).

2. The combined numerical control cutting machine according to claim 1, characterized in that: The cutting mechanism (1) comprises: Sliding assembly (11), the inner wall of the sliding assembly (11) is slidably arranged at the side wall of the cutting machine tool body (111), used for changing the cutting position; Driving assembly (12), the top of the driving assembly (12) is fixedly arranged at the bottom of the cutting table (112), used for driving the leveling mechanism (2) to descend; Wherein, when the metal plate needs to be cut, the cutting machine tool body (111) is started to drive the cutting instrument to move and cut the metal plate, at the same time, the leveling mechanism (2) is driven to descend by the driving assembly (12) to press the metal plate around the cutting instrument.

3. The combined numerical control cutting machine according to claim 2, characterized in that: The leveling mechanism (2) comprises: Extrusion assembly (21), the extrusion assembly (21) is slidably arranged at the inner wall of the limiting frame (122), used for extruding the metal plate; Rolling assembly (22), the rolling assembly (22) is fixedly arranged at the side wall of the pressing roller (222) through a fixing piece, used for rolling the metal plate; The fixing piece comprises a concave-convex ring (223) fixedly connected at the side wall of the pressing roller (222), the inner wall of the four sliding frames (221) is slidably connected with a pushing rod (224); Wherein, when the metal plate is cut, the extrusion assembly (21) is driven to descend by the driving assembly (12) to extrude the metal plate around the cutting instrument, at the same time, the rolling assembly (22) is driven to roll on the surface of the metal plate to pre-press the metal plate around the extrusion assembly (21).

4. The combined numerical control cutting machine according to claim 3, characterized in that: The reciprocating mechanism (3) comprises: Jetting assembly (31), the jetting assembly (31) is fixedly arranged at the side wall of the sliding frame (221) through a supporting piece, used for jetting gas to remove impurities on the surface of the rolling assembly (22); The support piece comprises air pressure frames (311) fixedly connected to the side walls of the sliding frame (221), and spring extrusion plates (312) are slidably connected to the inner walls of the four air pressure frames (311); The damping assembly (32) is fixedly arranged on the side wall of the limiting frame (122) through a connecting piece, and is used for reducing the vibration generated when the metal plate is cut; The connecting piece comprises four piston rods (322) fixedly connected to the side wall of the limiting frame (122), and four fixed cylinders (321) are fixedly connected to the top of the frame-shaped pressing plate (211); When the roller pressing assembly (22) moves, the gas inside the gas injection assembly (31) is injected towards the roller pressing assembly (22) to remove impurities on the surface of the roller pressing assembly (22), and the vibration generated when the metal plate is cut is reduced through the damping assembly (32).

5. A numerically controlled cutting combination machine tool according to claim 4, characterized in that: The sliding assembly (11) comprises a plasma torch (113) slidably connected to the inner wall of the cutting table (112); The driving assembly (12) comprises two limiting rods (123) fixedly connected to the top of the limiting frame (122), and the inner wall of the cutting table (112) is slidably connected to the outer wall of the two limiting rods (123), and the bottom output end of the electric cylinder (121) is fixedly connected to the top of the limiting frame (122); The metal plate to be processed is placed on the top of the cutting machine bed main body (111), and then the cutting machine bed main body (111) is started to make the cutting table (112) and the plasma torch (113) slide, and the metal plate is cut by the plasma torch (113).

6. A numerically controlled cutting combination machine according to claim 5, characterized in that: The extrusion assembly (21) comprises four spring return rods (212) fixedly connected to the top of the frame-shaped pressing plate (211), and the inner wall of the limiting frame (122) is slidably connected to the outer wall of the four spring return rods (212), and a plurality of ball bearings (213) are rotatably connected to the bottom of the frame-shaped pressing plate (211); When the metal plate is cut, the limiting frame (122) is lowered by starting the electric cylinder (121) to make the frame-shaped pressing plate (211) and the ball bearings (213) descend, and the metal plate around the plasma torch (113) is extruded at multiple points to make the metal plate flat.

7. A numerically controlled cutting combination machine tool according to claim 6, characterized in that: The roller pressing assembly (22) comprises a fixed block (225) fixedly connected to the side wall of the frame-shaped pressing plate (211), a spring rod (226) fixedly connected to one side of each of the four sliding frames (221) close to the frame-shaped pressing plate (211), and the inner wall of the limiting frame (122) is slidably connected to the outer wall of the four spring rods (226); When the limiting frame (122) descends, the sliding frame (221) and the pressing roller (222) also descend, and when the cutting machine bed main body (111) moves the cutting table (112), the pressing roller (222) also moves, so that the pressing roller (222) rotates to pre-press the metal plate around the frame-shaped pressing plate (211).

8. A numerically controlled cutting combination machine tool according to claim 7, characterized in that: The jet assembly (31) comprises connecting rods (313) slidably connected at the inner wall of the sliding frame (221), four connecting rods (313) are rotatably connected with connecting rods (314) at the side wall, and the top of four spring extrusion plates (312) are rotatably connected with the inner wall of four connecting rods (314).

9. A numerically controlled cutting combination machine tool according to claim 8, characterized in that: The jet assembly (31) comprises a plurality of air holes (315) formed in the inner wall of the air pressure frame (311), four spring block plates (316) are slidably connected at the inner wall of four air pressure frames (311), and four arc-shaped jet plates (317) are fixedly connected at the inner wall of four air pressure frames (311). Wherein, when the compression roller (222) rotates, it drives the concave-convex ring (223) to rotate, extrudes the connecting rod (313) to move, and through the connecting rod (314) makes the spring extrusion plate (312) descend, extrudes the gas, and finally makes the gas through the arc-shaped jet plate (317) to spray against the compression roller (222).

10. The combination numerically controlled cutting machine according to claim 9, characterized in that: The damping assembly (32) comprises a special-shaped groove (323) formed in the inner wall of the fixed cylinder (321), four piston rods (322) are slidably connected with the inner wall of four fixed cylinders (321), four fixed cylinders (321) are provided with hydraulic oil at the inner wall, and four fixed cylinders (321) are throughly connected with connecting pipes (324) at the inner wall. Wherein, when the metal plate vibrates, it will be transmitted to the frame-shaped pressing plate (211), so that the frame-shaped pressing plate (211) vibrates, and the vibration will be transmitted to the damping assembly (32) through the frame-shaped pressing plate (211), and the vibration will be absorbed by the damping assembly (32), so as to reduce the vibration amplitude of the metal plate.

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