Multi-line rotary cutting machine for pipe material processing and slicing

Abstract

The invention belongs to the technical field of pipe slicing, and particularly relates to a multi-line rotary cutting machine for pipe processing slicing, which comprises a first support frame and a second support frame which are arranged up and down, a pipe workbench is arranged in the second support frame, and the multi-line rotary cutting machine comprises a lifting system and a pipe mounting assembly. The pipe material mounting assembly comprises a tool rod, a first driving motor, a pipe material support and a clamping mechanism, the clamping mechanism is configured to clamp a pipe material and limit the axial position of the pipe material, and the first driving motor drives the pipe material to rotate around the axis; the roller system is arranged in the first supporting frame to form a cutting line supporting structure. The take-up and pay-off systems are symmetrically arranged on the two sides of the second supporting frame and guide cutting lines to form a cutting path. By driving the pipe material to rotate, the outer surface of the pipe material is in continuous contact with the cutting surface for cutting. According to the multi-wire cutting machine, the problems that an existing multi-wire cutting machine cannot rotate while cutting, clamping and rotating separation cannot be achieved, and machining is eccentric are solved, and efficient, stable and uniform multi-wire slicing machining of pipe materials in the dynamic rotating state is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tube material slicing, and more specifically, relates to a multi-wire rotary cutting machine for tube material processing and slicing. Background Art

[0002] With the wide application of electronic ceramics, optical glass, quartz materials, and high-precision tubular workpieces in the field of precision manufacturing, material slicing and processing equipment is developing in the direction of high efficiency, high precision, and high stability. Especially when processing tube materials with small outer diameters, thin wall thicknesses, or brittle materials, the processing equipment not only needs to ensure dimensional accuracy but also needs to consider rotational stability, cutting uniformity, tangent tension control, and heat dissipation capacity.

[0003] Existing multi-wire cutting technologies are mainly applied to the planar cutting of hard and brittle materials such as crystalline silicon and sapphire. These technologies usually adopt a multi-wire parallel arrangement to improve cutting efficiency, but their structural design is mainly for planar materials. When synchronously cutting cylindrical, especially hollow-structured tubular workpieces in a dynamic rotation state, there are obvious structural adaptation problems and it is difficult to meet the actual process requirements.

[0004] Specifically, most current multi-wire cutting equipment adopts a working mode of fixing the workpiece and static feeding. When attempting rotary cutting, even if there are existing designs that enable the rotation of the workpiece to be coordinated with multi-wire cutting, the following key technical obstacles still exist:

[0005] 1. The clamping and rotation drive mechanisms are separated and lack integrated control: The clamping workpieces commonly used in existing equipment are mostly static structures and it is difficult to achieve coordinated control with the rotation drive mechanism, resulting in problems such as eccentricity, jumping, or slipping of the workpiece during rotation, which in turn affects the thickness uniformity and concentricity during the cutting process.

[0006] 2. The spatial path of the cutting wire does not match the geometry of cylindrical workpieces: Most multi-wire devices form a wire mesh cutting plane with planar roller arrangements, which is difficult to adapt to the circumferential cutting requirements of tube-like workpieces, and the wire guiding angle is fixed, making it difficult to achieve coplanar contact between the wire mesh and the rotating tube wall, resulting in wire entry position deviation and uneven wire load.

[0007] Therefore, existing multi-wire cutting devices have deficiencies in aspects such as structural adaptability, clamping and rotation linkage ability, tangent fitting accuracy, and wire mesh tension path management, and cannot effectively support the cutting operation of high-precision and fragile tubular materials in a rotating state. For this reason, there is an urgent need to develop a multi-wire cutting machine that can achieve workpiece rotation drive, synchronous multi-wire cutting, and closed-loop tension control of the cutting wire, so as to improve the application adaptability and processing quality of multi-wire cutting technology in the processing of precision tube materials. Summary of the Invention

[0008] To solve the problems of unable to rotate and cut simultaneously, poor machining accuracy, stress concentration, uneven slicing, etc. in the above-mentioned existing technologies, the present invention provides a multi-wire rotary cutting machine suitable for slicing tubular workpieces. The device realizes the efficient cooperation of workpiece rotation and multi-wire cutting by constructing an integrated pipe material rotation drive mechanism, a multi-wire coplanar cutting structure, a full-path tension control system and a closed-loop wire winding and unwinding structure, effectively improving the cutting uniformity and machining stability, and enhancing the adaptability and machining efficiency of multi-wire cutting technology in the processing of thin tubes, thin-walled and high-precision pipes.

[0009] The present invention provides a multi-wire rotary cutting machine for slicing pipe materials, including:

[0010] A frame, including a first support frame and a second support frame arranged vertically, and a through-hole area for the pipe material to pass through is provided between the upper and lower frames;

[0011] A pipe material workbench, arranged inside the second support frame, including a lifting system and a pipe material installation component located at its lifting end. The lifting system drives the pipe material installation component to move vertically along the through-hole area to the cutting area position provided inside the first support frame;

[0012] The pipe material installation component includes a tooling rod, a first driving motor, a pipe material support and a clamping mechanism. The clamping mechanism is configured to clamp the pipe material and limit its axial position. The first driving motor is connected to the clamping mechanism for rotating the pipe material in the clamping mechanism around its own axis;

[0013] The pipe material support is of a U-shaped structure and is installed at the lifting end of the lifting system; the clamping mechanism includes a top block. Each top block is respectively rotatably connected to both ends of the U-shaped structure. A tooling rod is provided between the two top blocks. The pipe material to be processed is sleeved and fixed on the outer peripheral surface of the tooling rod. Grooves are provided at both ends of the tooling rod, and a convex structure matching the groove is provided at the end of the top block in contact with the tooling rod to prevent the tooling rod from slipping relative to the top block during rotation;

[0014] A roller system, arranged inside the first support frame, including a plurality of axially arranged rollers and a third driving motor for driving the rollers to rotate. The plurality of rollers are arranged in a non-coplanar triangle to form a cutting wire support structure;

[0015] A wire winding and unwinding system, symmetrically arranged on the left and right sides of the second support frame, including a wire reel and a wheel set. The wheel set is arranged to guide the cutting wire to be led out from the wire reel on one side of the wire winding and unwinding system, sequentially wound around the cutting path formed by the wheel set and the roller system, and then wound on the wire reel on the opposite side;

[0016] Wherein, when the pipe material is clamped by the ejector block and moved to the cutting area via the lifting system, the first drive motor is configured to drive the pipe material to rotate around its axis, so that the outer surface of the pipe material is in continuous contact with the multi-wire cutting surface supported by the roller system.

[0017] In a preferred implementation, further, symmetric mounting hole pairs are provided at both ends of the pipe support. A bearing is installed in each pair of mounting holes. Each of the tooling rods is arranged between the mounting holes at both ends of the pipe support. One end of the ejector block is a rod portion, and a flange is provided at the other end near the tooling rod. The rod portion of the ejector block is nested and installed in the corresponding bearing.

[0018] In a preferred implementation, further, the clamping mechanism further includes a locking wrench, a jacking block, and a nut. The jacking block is located outside the ejector block at one end of the tooling rod. The jacking block is of a T-shaped screw rod structure, and its top plate end abuts against the end face of the ejector block at the end and the corresponding bearing. The screw rod portion of the T-shaped screw rod passes through the mounting hole of the pipe support and extends to the outside, and is sequentially sleeved with a nut and a locking wrench.

[0019] In a preferred implementation, further, the pipe installation assembly further includes a synchronous belt, a driving wheel, and a driven wheel. The driven wheel is located at the rod portion of the ejector block at the other end of the tooling rod. The first drive motor is installed on the pipe support, and its output shaft is connected to the driving wheel. The driving wheel is connected to the two driven wheels through the synchronous belt.

[0020] In a preferred implementation, further, the wheel set includes a first guide wheel, a tensioning wheel, and a second guide wheel. The first guide wheel and the second guide wheel are arranged on the side surface of the second support frame. The first guide wheel is located above the same-side spool, and the second guide wheel is arranged on the first support frame.

[0021] In a preferred implementation, further, the wire winding and unwinding system further includes a second drive motor, and the output shaft of the second drive motor is connected to the spool.

[0022] In a preferred implementation, further, the pipe workbench further includes a workbench support, and the workbench support is installed on the bottom surface of the second support frame.

[0023] In a preferred implementation, further, the workbench support has a lifting system mounting seat, and the lifting system is installed in the lifting system mounting seat of the workbench support.

[0024] In a preferred implementation, further, the second guide wheels on both sides of the wire winding and unwinding system are located at the same mounting height and are arranged diagonally.

[0025] The beneficial effects of the present invention are:

[0026] First, the multi-wire rotary cutting machine for pipe material processing and slicing according to the present invention addresses the problems existing in the prior art, such as the inability of multi-wire cutting equipment to perform cutting while the workpiece rotates, the separation of the clamping and rotary drive structures, and the geometric mismatch between the cutting path and the surface of the cylindrical workpiece. By providing a pipe material workbench and integrating the lifting system with the pipe material installation assembly, the pipe material installation assembly includes a first drive motor and a clamping mechanism, enabling the pipe material to continuously rotate around its own axis in a stably clamped state and simultaneously come into contact with the multi-wire cutting area, forming continuous slicing processing in a dynamically rotating state. Thus, the problem that existing cutting equipment only supports static cutting and cannot achieve rotary processing is solved. Through the linkage design of structural limitation and rotary transmission in the clamping mechanism, combined with the symmetric positioning of the pipe material end, the pipe material maintains a stable axis and no relative slip during rotation. At the same time, through the linkage transmission between the synchronous belt and the main / driven wheels, reliable and efficient torque transmission is achieved, avoiding the rotary slip caused by problems such as tooling rods and smooth outer walls in traditional friction clamps. By arranging multiple rollers in a non-coplanar triangular structure, the cutting wire can form an inclined winding surface in space and make surface-contact fitting with the outer wall of the rotating pipe material, effectively avoiding the deviation of the wire entry angle, wire jumping, and wire wear, and solving the technical problem that it is difficult for the tangent line to be coplanar with the cutting surface caused by the fixed guide wheel in the traditional method, improving the fitting efficiency and cutting uniformity of multi-wire cutting. The wire pay-off and take-up system is arranged on the left and right sides of the lower layer of the frame, including symmetrically arranged wire reels, guide wheel groups, and tensioning mechanisms. The cutting wire is released from one wire reel, passes through guiding, bypasses the tensioning wheel, enters the roller system to form a cutting area, and finally is retrieved and wound from the opposite side, forming a closed-loop tensioning path structure. This structure can continuously adjust the wire tension to adapt to workpiece disturbances or wire speed changes, solving the hidden danger of the unclosed tension path and out-of-control wire segment tension in the existing device.

[0027] Second, in a preferred implementation manner, the present invention realizes the rapid positioning and stable clamping of the pipe material by providing a U-shaped pipe material support in the pipe material installation assembly and symmetrically arranged mounting hole pairs at both ends thereof, and the ejector block is fitted into the holes to clamp the tooling rod, improving the anti-vibration performance and adaptability; the combination of the ejector block, nut, and locking wrench enables the clamping device to have the functions of rapid adjustment and locking, avoiding clamping looseness; in addition, by providing a driven wheel at the rod part of the ejector block at one end of the tooling rod and cooperating with the first drive motor, driving wheel, and synchronous belt mounted on the pipe material support to form a rotary drive structure, it effectively ensures that the pipe material does not eccentric, does not vibrate, and the torque is evenly transmitted during rotation.

[0028] Third, in a preferred implementation, by arranging the second guide wheels on both sides of the wire winding and unwinding system at the same installation height and in a diagonal direction, the present invention can form a symmetric and stable spatial wire guiding path when the cutting wire crosses both sides, effectively preventing problems such as vertical misalignment, cross interference, or inconsistent wrap angles of the cutting wire before it is introduced into the roller system, thereby improving the consistency of multi-wire introduction and the overall uniformity of the cutting surface.

[0029] Fourth, in a preferred implementation, the outer envelope surface formed by the three rollers of the present invention is provided with spiral grooves extending along the axial direction, enabling multiple cutting wires to be evenly distributed along a preset spiral path and run embedded in the grooves during the winding process. This structure not only effectively prevents the cutting wires from experiencing lateral slip or misalignment during high-speed movement but also guides the cutting wires to construct a stable spiral cutting surface at a constant spacing and trajectory.

[0030] Fifth, in a preferred implementation, the rollers of the present invention adopt a hollow metal roller structure, and a wear-resistant coating or a ceramic spray coating is provided on its surface, enhancing its surface hardness and wear resistance. During the high-speed winding operation of the cutting wire, it effectively reduces wear and heat accumulation caused by friction and extends the service life of the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. 1 is a perspective structural view of a multi-wire rotary cutting machine for tube material processing and slicing provided by an embodiment of the present invention;

[0032] Figure 2 FIG. Figure 1 2 is a front view of the multi-wire rotary cutting machine shown in FIG. 1;

[0033] Figure 3 FIG. Figure 1 3 is a side view of the multi-wire rotary cutting machine shown in FIG. 1;

[0034] Figure 4 FIG. 4 is a perspective structural view of a tube material workbench in an embodiment of the present invention;

[0035] Figure 5 FIG. 5 is a partial cross-sectional view of a tube material installation component in an embodiment of the present invention;

[0036] Figure 6 FIG. Figure 3 6 is an A-A cross-sectional view of the multi-wire rotary cutting machine shown in FIG. 1.

[0037] Among them, 1 - frame; 10 - first support frame; 11 - second support frame; 2 - pipe material workbench; 20 - workbench bracket; 21 - lifting system; 22 - pipe material installation component; 220 - locking wrench; 221 - jacking block; 222 - ejector block; 223 - tooling rod; 224 - pipe material; 225 - first driving motor; 226 - synchronous belt; 227 - driven wheel; 228 - pipe material support; 3 - wire winding and unwinding system; 30 - second driving motor; 31 - spool; 32 - first guide wheel; 33 - tensioning wheel; 34 - second guide wheel; 4 - roller system; 40 - roller; 41 - third driving motor; 5 - cooling system. Detailed implementation manners

[0038] In order to enable those skilled in the art to better understand the technical solutions of this application, the following will further describe the present invention in detail with reference to the accompanying drawings and embodiments.

[0039] The orientation terms such as up, down, left, right, front, and back in this application document are established based on the positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly. Therefore, it cannot be understood as a limitation of the protection scope.

[0040] In this application, terms such as "installation", "connection", "engagement", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection or a connection that can communicate with each other, a direct connection, an indirect connection through an intermediate medium, a connection between the interiors of two components, or an interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the process of multi-wire cutting of high-precision tubular workpieces such as electronic ceramics and quartz glass in the present application, it is found that in actual processing, the tube material itself has typical structural characteristics such as being hollow, having a thin wall, a small outer diameter, and high brittleness. This makes a series of problems exposed when using the traditional multi-wire cutting method of fixing workpieces and static feeding for processing such workpieces, such as cutting stress concentration, local heat accumulation caused by a constant tangent entry point, machining eccentricity, and mismatch between the cutting path and the tube wall geometry, seriously affecting the cutting accuracy and the quality of finished products. For this reason, the present application proposes a multi-wire rotary cutting machine for tube material processing and slicing. By introducing an integrated clamping-rotation-feeding mechanism on the cutting platform, the tube material can enter the cutting area in a rotating state to achieve synchronous multi-wire cutting. In addition, through the innovative tangent guiding structure and arrangement angle, the device described in the present application can effectively improve the fitting degree between the tangent and the tube wall, achieve dynamic coplanar matching between the cutting path and the tube body geometry, and cooperate with a closed-loop tension control system and an efficient chip removal and heat dissipation module to improve the cutting quality and processing stability, and solve the adaptability bottleneck of existing multi-wire cutting equipment when processing tubular workpieces.

[0042] Embodiment 1

[0043] As shown in the specification appendix Figure 1 , a multi-wire rotary cutting machine for tube material processing and slicing, includes a frame 1, a tube material workbench 2, a wire winding and unwinding system 3, and a roller system 4. The frame 1 adopts an upper and lower double-layer structure. The upper layer structure is used to accommodate the cutting execution components, and the lower layer structure is used to install auxiliary transmission and control mechanisms. There is a through-hole type opening area preset between the upper and lower structures for the tube material to pass through. The roller system 4 is arranged inside the upper layer structure of the frame 1 and is the cutting core component of this multi-wire rotary cutting machine. The wire winding and unwinding system 3 is in the lower layer structure of the frame 1 and is symmetrically arranged on the left and right sides below the roller system 4. Each side has a wire spool, a tension control unit, and a guide wheel group to form a complete wire winding and unwinding channel. The cutting wire exits from the wire spool of the wire winding and unwinding system 3 on one side, sequentially passes through the guiding mechanism and enters the roller system 4, winds around multiple rollers to form a cutting area with a multi-wire parallel structure, realizes multi-face simultaneous cutting of the tube material, and the cutting wire is recovered from the wire winding and unwinding system 4 on the opposite side after passing around the rollers, realizing closed-loop guiding to ensure that the cutting wire always remains taut and runs smoothly. The tube material workbench 2 is arranged in the lower layer structure of the frame 1 and is located directly below the roller system 4. The tube material workbench 2 includes a lifting system and a rotating system for driving the tube material to be processed to rotate. The tube material to be processed and the rotating system are integrally installed on the lifting system. During the working process, the tube material passes through the opening between the upper and lower layers through the lifting system, enters the cutting area, and is lifted to the height where the cutting wire is located, and at the same time rotates synchronously under the action of the rotating system to realize slicing.

[0044] As shown in the specification appendix Figure 2 , in the implementation manner of the present application, the upper layer structure of the frame 1 is Figure 2The first support frame 10 shown, the lower layer structure of the frame 1 is Figure 2 The second support frame 11 shown, and the two together constitute the basic load-bearing and installation platform of the whole machine. The first support frame 10 and the second support frame 11 adopt stiffening plates and rigid connection parts at the four corners to construct a high-strength platform, ensuring that the structure does not deform during high-speed cutting, so as to maintain the cutting accuracy. Both the first support frame 10 and the second support frame 11 are rectangular frames, and the first support frame 10 is arranged along one side of the second support frame 11 in alignment. The two frames are rigidly connected by high-strength bolts, and diagonal stiffening plates are arranged at each connection node to inhibit lateral and torsional deformation.

[0045] The roller system 4 includes at least three rollers 40 and a third driving motor 41 connected thereto. As shown in the attached Figure 3 As shown, the three rollers 40 are arranged in a triangle along the axial direction, and the central axes are parallel to each other, forming a non-coplanar support structure with three points in space. The outer envelope surface of this non-coplanar support structure is the winding surface of the cutting line. Corresponding mounting holes are provided on both sides of the first support frame 10 according to the arrangement form of the three rollers 40. Each mounting hole is provided with a bearing, and both ends of each roller 40 are mounted in the corresponding mounting hole and rotatably connected to the bearing. One third driving motor 41 is installed at the same end of the three rollers 40, and the roller 40 is driven to rotate by the third driving motor 41.

[0046] Furthermore, the roller 40 is a hollow metal roller structure, and the surface is treated with a wear-resistant coating or ceramic spraying to improve the wear resistance and tensile properties at the contact between the cutting line and the roller. On the outer envelope surface formed by the three rollers 40 together, a spiral groove is provided along the axial direction, and this spiral groove is a continuous winding path.

[0047] In the implementation manner of this application, the wire winding and unwinding system 3 further includes a second driving motor 30. One mounting plate is respectively provided on the left and right sides at the bottom of the second support frame 11, and a second driving motor 30 is fixedly installed on each mounting plate. Since the wire winding and unwinding system 3 is designed with a symmetrical structure, taking one side as an example for description, the output shaft of the second driving motor 30 passes through the mounting plate and is connected to the spool 31 on the corresponding side. The central axes of the second driving motor 30 and the spool 31 are arranged horizontally to realize the active control of the winding and unwinding of the cutting line.

[0048] The tension control unit includes a tension pulley 33 and a swing arm mechanism. The swing arm mechanism includes a swing arm main body and a return spring. The swing arm main body is a rigid connecting arm, and its material is high-strength aluminum alloy or structural steel. One end of the swing arm main body is connected to the side surface of the second support frame 11 through a rotating shaft and can swing within a certain angle range around the shaft. The other end is equipped with a tension pulley 33, so that the tension pulley 33 moves along with the rotation direction of the swing arm to adjust the length and tension of the cutting line. The length of the swing arm main body is set according to the installation space and the tensioning precision requirements. One end of the return spring is fixed in the middle of the swing arm main body or near the bottom end, and the other end is fixed on the second support frame 11. The return spring always pulls the swing arm downward or backward to keep the swing arm main body always applying tension to the cutting line.

[0049] The guide pulley set of the wire winding and unwinding system 3 includes a first guide pulley 32 and a second guide pulley 34. The first guide pulley 32 is installed at the side position of the second support frame 11 and above the corresponding wire spool 31. The central axis direction of the first guide pulley 32 is vertically crossed with the central axis of the wire spool 31 to form a first guiding turning point. After the cutting line exits from the wire spool 31, it winds around the first guide pulley 32 with an approximately 90° wrap angle to complete the direction conversion. After the cutting line is led out from the first guide pulley 32, it enters the area of the tension pulley 33 and completely bypasses the tension pulley 33 with a 180° wrap angle. The tension pulley is installed at the end of the swingable swing arm mechanism and is used to actively absorb the wire length fluctuation and maintain a constant tension state. The second guide pulley 34 is installed on the first support frame 10, below the bottom of the cutting envelope structure formed by the three rollers 40. Its installation axis is set to have a certain inclination angle relative to the horizontal plane, and this inclination angle is tangent and coplanar with the triangular cutting envelope surface formed by the three rollers 40. After the cutting line winds around the second guide pulley 34 with a 90° wrap angle, it is naturally led into the roller system to form a cutting surface. The second guide pulley 34 plays the functions of direction correction, path fine-tuning and layer transition, so that the cutting line accurately enters the space cutting surface formed by the three rollers 40.

[0050] Figure 2 The arrows shown indicate the movement direction of the cutting line. The cutting line exits from the wire spool 31, and its running path includes winding around the first guide pulley 32 with a 90° wrap angle, winding around the tension pulley 33 with a 180° wrap angle, and then winding around the second guide pulley 34 with a 90° wrap angle, and finally entering the inclined triangular cutting surface formed by the three rollers 40 to form a spiral winding path. After cutting is completed, it enters the wire winding and unwinding system on the other side for symmetric recovery. It should be noted that in this application, the second guide pulleys 34 on both sides of the wire winding and unwinding system 3 are arranged on the same installation surface in a diagonal direction to ensure that the cutting line does not cross or have tension fluctuations in the crossing structure.

[0051] As shown in the specification appendix Figure 4, the pipe material workbench includes a workbench support 20, a lifting system 21, and a pipe material installation component 22. The workbench support 20 is installed on the bottom surface of the second support frame 11 and is located on the symmetric center line on both sides of the wire winding and unwinding system 3. The workbench support 20 is provided with a lifting system mounting seat, and the lifting system 21 is installed in this mounting position. The pipe material installation component 22 is installed on the top of the lifting end of the lifting system 21.

[0052] Specifically, the lifting system 21 includes a servo motor, a coupling, a ball screw, a screw nut seat, a bearing seat with bearings, a linear guide rail, and a slider. The servo motor is fixed on the outer side of the lower part of the workbench support 20, and its output shaft is connected to the ball screw through a coupling. The coupling, the ball screw, the screw nut seat, and the bearing seat with bearings are located in the lifting system mounting seat of the workbench support 20. The two ends of the ball screw are supported in the lifting system mounting seat through the bearing seats with bearings, converting the rotational motion of the servo motor into linear propulsion. The screw nut seat is sleeved on the screw, and it is internally provided with balls for rotational connection with the screw. One side of the screw nut seat sleeve is connected to one side of the slide table, and the other side of the slide table is slidably connected to the guide rail inside the lifting system mounting seat. By driving the ball screw to rotate with the servo motor, the ball screw rotation drives the slide table fixed on the screw nut seat to move up and down along the guide rail inside the lifting system mounting seat.

[0053] As shown in the instruction manual appendix Figures 5 - 6, the pipe material installation assembly 22 includes a pipe material support 228, a pipe material 224, a pipe material clamping assembly, a first driving motor 225, a synchronous belt 226, a driven wheel 227 and a driving wheel. The pipe material support 228 is an overall U-shaped structural frame, with symmetrically arranged mounting hole pairs at both horizontal ends for installing the pipe material clamping assembly, and a bearing is installed in each pair of mounting holes. The bottom of the U-shaped structure is installed on the top of the ball screw of the lifting system 21 by means of screw connection or key connection. The pipe material clamping assemblies are symmetrically arranged on both sides of the pipe material support 228. Each set of clamping assemblies is arranged in the through holes at both ends of the support 228. The pipe material clamping assembly includes a locking wrench 220, a top force block 221, a top material block 222 and a tooling bar 223. Taking the pipe material clamping assembly on one side as an example, the tooling bar 223 is arranged between the mounting holes at both ends of the U-shaped structure. The material of the tooling bar has elasticity and anti-cutting ability. The outer peripheral surface of the tooling bar 223 is coated with an adhesive layer, and the pipe material 224 is sleeved and fixed on the outer peripheral surface of the tooling bar 223. Top material blocks 222 are arranged in the mounting holes at both ends of the U-shaped structure. The two top material blocks 222 are clamped at both ends of the tooling bar 223. Grooves are provided at both ends of the tooling bar 223, and protrusions are provided at the ends of the top material blocks 222 in contact with the tooling bar 223. The grooves at both ends of the tooling bar 223 are respectively matched with the protrusions of 1 top material block 222 to prevent the top material block 222 from slipping with the tooling bar 223 during the process of the first driving motor 225 driving the top material block 222 to rotate. A flange is provided at one end of the top material block 222 close to the tooling bar 223, and a rod portion is provided at the other end. The rod portion of the top material block 222 is nested and installed in the corresponding bearing to achieve rotational support.

[0054] A top force block 221 is provided on the outer end face of the top material block 222 at one end of the tooling bar 223. The top force block 221 is a T-shaped screw rod structure, and its top plate end abuts against the end faces of the top material block 222 and the corresponding bearing. The screw rod portion of the T-shaped screw rod passes through the mounting hole of the pipe material support 228 and extends to the outside, and is sequentially sleeved with a nut and a locking wrench 220. By tightening the nut and the locking wrench 220, the rotation axis of the top force block 221 is made to be collinear with the central axes of the top material block 222 and the tooling bar 223, so as to realize the axial locking and fixing of the top material block 222 and the tooling bar 223 and the quick disassembly and replacement of the pipe material 224 to be processed.

[0055] A driven wheel 227 is sleeved on the rod portion of the top material block 222 at the other end of the tooling bar 223. The first driving motor 225 is installed at the bottom of the pipe material support 228, and its output shaft is connected to the driving wheel through a coupling. The driving wheel is arranged between the two driven wheels 227 below. The synchronous belt is wound around the driving wheel and the two driven wheels 227. By driving the driving wheel to rotate through the first driving motor 225, the two driven wheels 227 are driven to drive the top material block 222, the tooling bar 223 and the pipe material 224 to rotate synchronously as a whole.

[0056] In the implementation of the present application, to ensure that the cutting wire and the pipe material do not deform, ablate, or cause material damage due to frictional heating during the high-speed cutting process of the multi-wire cutting machine, the multi-wire cutting machine for slicing pipe materials further includes a cooling system 5. The cooling system 5 is installed on the first support frame 10 and is located above the pipe cutting area. The cooling system 5 includes a cooling spray head group, a fluid supply pipeline, a solenoid valve, a liquid storage tank, a cooling controller, and a mounting plate. The mounting plate is installed on the upper structural cross beam of the first support frame 10, and the mounting plate is firmly connected to the frame structure by screw connection or welding to form an independent support interface. Each spray head of the cooling spray head group is evenly distributed along the bottom of the mounting plate and is fixed on the mounting plate by a threaded joint or a snap-on quick mounting seat. Each spray head is provided with a liquid inlet, which is connected to the fluid supply pipeline through a hose, and the liquid outlet direction of the spray head faces downward the cutting area. The fluid supply pipeline is made of a high-pressure and high-temperature resistant hose or a metal bellows. One end of the fluid supply pipeline is connected to the liquid inlets of multiple spray heads, and the other end converges to the solenoid valve. Preferably, a "T-shaped shunt joint" or a "distribution header" is used to split and connect the liquid supply to multiple spray heads, and each branch is provided with a throttle valve or a flow limiting port to achieve individual flow regulation of the spray heads. The fluid supply pipeline is arranged along the back of the mounting plate and is fixed by pipe clamps or hose clamps to prevent loosening due to vibration.

[0057] The liquid storage tank is arranged on the machine frame 1 and is connected to the liquid inlet end of the solenoid valve through an infusion hose. The liquid storage tank stores coolant inside or is docked with an external coolant circulation system. The solenoid valve is installed on the mounting plate or on the side close to the liquid storage tank. Its liquid inlet is connected to the outlet of the liquid storage tank, and its liquid outlet is connected to the fluid supply pipeline. It is connected to the signal port of the cooling controller through a signal line to achieve remote switch control. The solenoid valve is used to receive the switch signal from the cooling controller and control the opening / closing of the liquid under set conditions to achieve the switching between the spray intermittent or continuous mode. The cooling controller is connected to the solenoid valve and the motor system, and outputs control instructions through a signal line. It is used to receive the temperature sensor or time logic trigger instructions to start or stop the spraying action. The cooling controller can set parameters such as the spray interval, the spraying duration, and the automatic start / stop conditions, support the access of the PLC or the human-machine interface, and be integrated into the overall control system of the equipment.

[0058] In the implementation of the present application, to realize the automatic feeding, alignment, or automatic unloading monitoring and response after slicing of the pipe material workpiece, the multi-wire cutting machine for slicing pipe materials further includes a transplanting induction sheet and a transplanting sensor to realize the identification and feedback of a key position of the pipe material in a certain lifting path.

[0059] Specifically, the transplant induction sheet is installed on the tube material support 228 and uses a metal sheet, a reflective label sheet or a magnetic sheet as the target trigger body. The transplant sensor is installed on the frame 1, and its position is precisely arranged according to the detection purpose to ensure that it can pass through the set induction point during the lifting stroke. An optoelectronic sensor, a Hall sensor or an inductive proximity switch is used and paired with the transplant induction sheet to have non-contact detection ability. The transplant sensor is connected to the main control system of the equipment to provide position signal input. In this application, two groups of transplant sensors and transplant induction sheets are provided, one group is used to sense the rising point of the lifting system 21, and the other group is used to sense the falling point of the lifting system 21. When the lifting system 21 drives the tube material 224 to rise or fall, the induction sheet moves accordingly. When the induction sheet passes through the detection area where the transplant sensor is located, the sensor triggers a signal output. After receiving the trigger signal, the main control system performs the following operations: determine whether the tube material has reached the specified processing position (such as the cutting surface); determine whether the lifting has reached the upper or lower limit, trigger an emergency stop or protection; determine whether the workpiece has been processed and moved down to the transplant position, and link the manipulator or the feeding mechanism to carry out blanking.

[0060] The working principle of the multi-wire rotary cutting machine for tube material processing and slicing in this application is as follows:

[0061] The cutting wire exits from the wire spool 31 on one side of the wire winding and unwinding system 3, and successively bypasses the first guide pulley 32, the tension pulley 33 and the second guide pulley 34 to form a segmented guiding path. Through the elastic action of the swing arm mechanism, the tension pulley 33 applies a continuous pulling force to the cutting wire to achieve automatic tension adjustment and keep the cutting wire running stably. After the cutting wire is led out by the second guide pulley 34, it enters the roller system 4 and winds around the triangular outer envelope surface formed by the three rollers 40 in a spiral path. The roller 40 is driven by the third driving motor 41 to rotate unidirectionally, so that the cutting wire wound on its surface forms a continuously rotating multi-wire cutting surface. The tube material 224 is installed on the tube material support 228 through the tube material clamping assembly, and the tube material support 228 is installed at the lifting end of the lifting system 21. The lifting system 21 is composed of components such as a servo motor, a coupling, and a ball screw, and drives the tube material 224 to lift along the vertical direction with the slide table and accurately enter the cutting wire winding area. After lifting in place, the first driving motor 225 is started, and drives the driven wheel 227 to rotate through the synchronous belt 226 by driving the driving wheel, so that the ejector block 222, the tooling rod 223 and the tube material 224 as a whole rotate synchronously. At this time, the tube material 224 forms a spiral contact with the cutting wire in the dynamic cutting state in space, realizing efficient and uniform slicing processing. The completed cutting wire enters the opposite side of the wire winding and unwinding system 3 and is wound up on the wire spool 31 to form a complete closed loop, ensuring the continuous and efficient repeated operation of the cutting wire and meeting the requirements of continuous processing.

[0062] Embodiment 2

[0063] In this embodiment, the rotary multi-wire cutting machine proposed in this application is adopted, and a comparative analysis is carried out with the rotary single-wire cutting machine, non-rotary electric discharge cutting machine and non-rotary multi-wire cutting machine in the prior art in multiple key dimensions, comprehensively verifying the advantages of the equipment in this application in terms of structural adaptability and comprehensive performance from aspects such as processing efficiency, cutting accuracy, structural design, equipment life, and processing surface quality. As shown in Table 1:

[0064] Table 1

[0065]

[0066]

[0067]

[0068] The multi-wire rotary cutting machine for tube stock processing and slicing in the present invention realizes the integration of the lifting system and the tube stock installation component by setting an integrated tube stock workbench. The tube stock is stably clamped under the action of the first driving motor and the clamping mechanism and continuously rotates around its own axis, synchronously contacting the multi-wire cutting area to form continuous slicing processing in a dynamically rotating state, solving the problem that traditional equipment can only perform static cutting. The clamping mechanism adopts a U-shaped tube stock support structure with symmetric mounting holes at the ends; the jacking block, nut and locking wrench are used to achieve quick positioning and locking, and the driving wheel, driven wheel and synchronous belt construct a reliable rotary drive to ensure the stable axis and balanced torque during the rotation of the tube stock. Multiple rollers are arranged in a non-coplanar triangular arrangement, and the outer envelope surface is provided with spiral grooves, so that the cutting wires are evenly wound and embedded in the grooves to form a stable spiral cutting surface, effectively avoiding the lateral slip, jumping and wear of the cutting wires, and at the same time improving the fitting efficiency and cutting uniformity. The rollers are made of hollow metal rollers and are treated with wear-resistant coatings or ceramic spraying to improve wear resistance and heat dissipation performance and extend the service life. The wire pay-off and take-up system is symmetrically arranged on both sides of the lower layer of the frame, and a closed-loop tensioning path is formed by the wire spool, guide wheel group and tensioning mechanism. The wire is released from one side, guided and tensioned and then wound around the roller, and then recovered and wound on the opposite side, continuously adjusting the tension to ensure the stable wire speed and avoid the risk of out-of-control tension. In addition, the second guide wheels are arranged diagonally symmetrically and have the same height, effectively preventing the upper and lower misalignment or cross interference before the cutting wires are introduced, further improving the consistency of multi-wire introduction and the overall quality of the cutting surface, so as to comprehensively optimize the dynamic rotation of the workpiece, path matching and machining accuracy control during multi-wire cutting. In addition, an integrated cooling system is provided above the cutting area, and the temperature is reduced by directional spraying of the spray head group to inhibit the accumulation of high temperature, reduce wire wear, and improve the continuity of the cutting process and the quality of the slices.

[0069] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

Claims

1. A multi-wire rotary cutting machine for tube material processing and slicing, characterized in that, Comprising: A frame (1), including a first support frame (10) and a second support frame (11) arranged vertically, with a through-hole area for the pipe material to pass through between the upper and lower frames; A pipe material workbench (2), arranged within the second support frame (11), including a lifting system (21) and a pipe material mounting assembly (22) located at its lifting end. The lifting system (21) drives the pipe material mounting assembly (22) to move vertically along the through-hole area to the cutting area position provided within the first support frame (10); The pipe material mounting assembly (22) includes a tooling rod (223), a first driving motor (225), a pipe material support (228), and a clamping mechanism. The clamping mechanism is configured to clamp the pipe material and define its axial position. The first driving motor (225) is connected to the clamping mechanism for rotating the pipe material in the clamping mechanism around its own axis; The pipe material support (228) has a U-shaped structure and is mounted on the lifting end of the lifting system (21); the clamping mechanism includes a top block (222). Each top block (222) is respectively rotatably connected to both ends of the U-shaped structure. A tooling rod (223) is provided between the two top blocks (222). The pipe material to be processed is sleeved and fixed on the outer peripheral surface of the tooling rod (223); grooves are provided at both ends of the tooling rod (223), and a protruding structure matching the groove is provided at the end of the top block (222) in contact with the tooling rod (223) to prevent the tooling rod (223) from slipping relative to the top block (222) during rotation; A roller system (4), arranged within the first support frame (10), including a plurality of axially arranged rollers (40) and a third driving motor (41) for driving the rollers (40) to rotate. The plurality of rollers (40) are arranged in a non-coplanar triangular layout to form a cutting line support structure; A wire winding and unwinding system (3), symmetrically arranged on the left and right sides of the second support frame (11), including a spool (31) and a wheel set. The wheel set is arranged to guide the cutting wire to be led out from the spool (31) on one side of the wire winding and unwinding system (3), sequentially wound around the cutting path formed by the wheel set and the roller system (4), and then wound on the spool (31) on the opposite side; Wherein, when the pipe material is clamped by the top block (222) and moved to the cutting area via the lifting system (21), the first driving motor (225) is configured to drive the pipe material to rotate around its axis, so that the outer surface of the pipe material continuously contacts the multi-wire cutting surface supported by the roller system (4).

2. The multi-line rotary cutting machine for pipe material processing and slicing according to claim 1, wherein, Symmetric mounting hole pairs are provided at both ends of the pipe material support (228). A bearing is installed in each pair of mounting holes. Each tooling rod (223) is arranged between the mounting holes at both ends of the pipe material support (228). One end of the top block (222) is a rod portion, and a flange is provided at the other end near the tooling rod (223). The rod portion of the top block (222) is nested and installed in the corresponding bearing.

3. The multi-line rotary cutting machine for tube material processing and slicing according to claim 2, wherein, The clamping mechanism further includes a locking wrench (220), a jacking block (221) and a nut. The jacking block (221) is located outside the ejector block (222) at one end of the tooling rod (223). The jacking block (221) has a T-shaped screw rod structure, and its top plate end abuts against the end face of the ejector block (222) at this end and the corresponding bearing. The screw rod part of the T-shaped screw rod passes through the mounting hole of the pipe support (228) and extends to the outside, and is successively sleeved with a nut and a locking wrench (220).

4. The multi-line rotary cutting machine for tube material processing and slicing according to claim 3, characterized in that, The pipe installation assembly (22) further includes a synchronous belt (226), a driving wheel and a driven wheel (227). The driven wheel (227) is located on the rod part of the ejector block (222) at the other end of the tooling rod (223). The first driving motor (225) is installed on the pipe support (228), and its output shaft is connected to the driving wheel. The driving wheel is connected to the two driven wheels (227) through the synchronous belt (226).

5. The multi-line rotary cutter for tube stock processing and slicing according to claim 1, characterized in that, The wheel set includes a first guide wheel (32), a tensioning wheel (33) and a second guide wheel (34). The first guide wheel (32) and the second guide wheel (34) are arranged on the side surface of the second support frame (11). The first guide wheel (32) is located above the same-side spool (31), and the second guide wheel (34) is arranged on the first support frame (10).

6. The multi-line rotary cutting machine for tube material processing and slicing according to claim 5, characterized in that, The wire winding and unwinding system (3) further includes a second driving motor (30), and the output shaft of the second driving motor (30) is connected to the spool (31).

7. The multi-line rotary cutting machine for tube material processing and slicing according to claim 1, characterized in that The pipe workbench (2) further includes a workbench support (20), and the workbench support (20) is installed on the bottom surface of the second support frame (11).

8. The multi-line rotary cutting machine for tube material processing and slicing according to claim 7, characterized in that, The workbench support (20) has a lifting system mounting seat, and the lifting system (21) is installed in the lifting system mounting seat of the workbench support (20).

9. The multi-line rotary cutting machine for pipe material processing and slicing according to claim 1, wherein, The second guide wheels (34) on both sides of the wire winding and unwinding system (3) are located at the same installation height and are arranged diagonally.

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