A circular wire squaring machine

Abstract

The application relates to a ring line squaring machine and belongs to the technical field of mechanical cutting. The squaring machine comprises a feeding and discharging mechanism, a rotary centering workbench mechanism, a cutter head cutting mechanism, a walking system and a control system; the feeding and discharging mechanism is arranged on one side of a linear guide rail of the walking system and is used for feeding and discharging workpieces; the rotary centering workbench mechanism is movably connected to the linear guide rail and is used for radially centering a workpiece to be cut by gradually contracting a centering guide wheel while driving the workpiece to be cut to rotate at a rotary part of the workbench and horizontally rotating the workpiece to be cut to adjust a cutting position; the walking system drives the rotary centering workbench mechanism to move along the linear guide rail between a feeding and discharging position and a cutting area; in the cutting area, two cutter head cutting mechanisms are symmetrically arranged on two sides of the linear guide rail and are used for symmetrically cutting the workpiece to be cut. The application greatly improves the machining precision and machining efficiency of squaring cutting and is suitable for the squaring process of various sizes of silicon rods on the market.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical square root processing, in particular to a square root processing equipment for processing and cutting cylindrical hard and brittle materials in a circular line, and more particularly to a circular line square root machine. BACKGROUND

[0002] The main square root processing method for silicon rods on the market is to use a single diamond wire reciprocating cutting line saw. The existing line saw processing has high processing precision, up to microns; but the processing efficiency is low, only a few tenths of millimeters per minute to two or three millimeters per minute, the main reason is that the current line saw processing speed is very slow, generally below 30 meters / second, the size of the processed silicon rod is single, in addition, the cutting chips often cover the cutting edge of the line saw due to the delay in chip removal, which reduces the cutting efficiency of the line saw and affects the surface processing precision, greatly limiting the processing efficiency, in addition, the current line saw mainly uses single line cutting, which further limits the processing efficiency, at present, the production efficiency is improved by using dozens or even hundreds or thousands of machines, which has low space utilization and difficult equipment maintenance. SUMMARY

[0003] In view of the above problems in the prior art, the present application provides a circular line square root machine, which has a processing precision of more than microns, solves the chip removal problem, can be applied to the square root processing of various sizes of silicon rods on the market, has a processing efficiency of more than five millimeters to twenty millimeters per minute, has a small occupied space, and can complete the square root processing of multiple silicon rods at one time.

[0004] To achieve the above object, the present application provides the following technical scheme:

[0005] A circular line square root machine, the square root machine comprises a feeding and discharging mechanism, a rotating centering workbench mechanism, a tool bit cutting mechanism, a walking system and a control system; the feeding and discharging mechanism, the rotating centering workbench mechanism, the tool bit cutting mechanism and the walking system are connected with the control system respectively;

[0006] The feeding and discharging mechanism is arranged on one side of a linear guide rail of the walking system, and is used for feeding and discharging workpieces;

[0007] The rotating centering workbench mechanism is movably connected to the linear guide rail, and comprises a workbench rotating part and a centering guide wheel, and is used for gradually shrinking the centering guide wheel to radially center the workpiece to be cut while driving the workpiece to be cut to rotate in the workbench rotating part, and horizontally rotating the workpiece to be cut to adjust the cutting position and radially center the workpiece to be cut; the walking system drives the rotating centering workbench mechanism to move along the linear guide rail between the feeding and discharging position and the cutting area;

[0008] In the cutting area, two cutter head cutting mechanisms are symmetrically arranged on both sides of the linear guide rail for symmetrically cutting the workpiece to be cut.

[0009] Further, the feeding and discharging mechanism comprises a feeding and discharging base, a feeding conveying platform and a turnover conveying platform; the feeding conveying platform is installed on the feeding and discharging base for feeding and discharging the workpiece to be cut and the cut workpiece; the turnover conveying platform is movably connected to the feeding and discharging base near the outer end of the linear guide rail, and can be turned up by 90°.

[0010] Further, the feeding and discharging mechanism further comprises a cylinder lifting part; the turnover conveying platform is hingedly connected to the translation slide plate of the cylinder lifting part near the outer end of the linear guide rail; the translation slide plate is slidably connected to the feeding and discharging base; the cylinder in the cylinder lifting part is hingedly connected to the bottom surface of the turnover conveying platform through a piston rod; the cylinder pushes the turnover conveying platform to turn up by 90°.

[0011] Further, the feeding and discharging mechanism further comprises a gear advancing and retreating part, which comprises a linear slide rail, a rack and an advancing and retreating motor; the cylinder lifting part is slidably connected to the linear slide rail through the translation slide plate; the rack and the linear slide rail are respectively installed on the feeding and discharging base; the advancing and retreating motor is installed below the translation slide plate and is in meshing connection with the rack; the advancing and retreating motor drives the cylinder lifting part to slide along the linear slide rail through meshing transmission.

[0012] Further, the turnover conveying platform is provided with a fork arm near the end of the linear guide rail; the fork arm is a U-shaped plate perpendicular to the surface of the turnover conveying platform, and its opening faces upward.

[0013] Further, the rotary centering workbench mechanism further comprises a cylinder lifting and centering part; the workbench rotating part is movably connected to the linear guide rail for driving the workpiece to rotate horizontally, adjusting the cutting position and cooperating with the cylinder lifting and centering part to radially center the workpiece to be cut; the cylinder lifting and centering part is installed on the workbench rotating part and comprises the centering guide wheel; the cylinder lifting and centering part radially centers the workpiece to be cut by driving the centering guide wheel to gradually contract.

[0014] Further, the workbench rotating part comprises a workbench, a workbench base and a rotating device; the rotating device is installed below the workbench base, the rotating shaft of the rotating device penetrates through the workbench base and is connected to the workbench, the rotating device drives the workbench to rotate, and the workbench is used for carrying the workpiece; the workbench base is movably connected to the linear guide rail, and the walking system drives the workbench base to move along the linear guide rail.

[0015] Further, the cylinder lifting centering part further comprises a centering seat, centering clamping cylinders, lifting cylinders, guide wheel plates, centering seat sliding plates and linear sliding rails; the centering seat is located between the workbench and the workbench seat, two centering clamping cylinders and two linear sliding rails are symmetrically arranged on the upper surface of the centering seat, two sliding blocks are symmetrically arranged on the linear sliding rails, and the two ends of the centering seat sliding plate are respectively installed on the sliding blocks on the same side of the linear sliding rails; the movable clamping pieces on the two sides of the centering clamping cylinders are respectively connected with the centering seat sliding plates on the same side, and the centering clamping cylinders drive the centering seat sliding plates to move in opposite directions; the centering seat sliding plate is connected with the centering guide wheels through the guide wheel plates above the sliding blocks; and the two lifting cylinders are symmetrically arranged on the two sides of the centering seat and are installed on the workbench seat, and are used to drive the centering seat to lift.

[0016] Further, the cutter head cutting mechanism comprises a sliding seat, a cutter head translation device, a cutter head feeding device, cutting rollers, winding rollers, an annular wire and a cutter head seat;

[0017] One or two cutting rollers and one or more winding rollers are respectively installed on the cutter head seat, the annular wire is wound on the cutting rollers and the winding rollers in sequence to form a closed loop annular wire, and a cutting wheel system is formed;

[0018] The cutter head seat is movably connected with the sliding seat through the cutter head feeding device, and the cutter head feeding device is used to drive the cutter head seat and the cutting wheel system to lift, feed and retreat;

[0019] The sliding seat is slidably connected with the cutter head translation device, and the cutter head translation device drives the sliding seat to translate and slide.

[0020] Further, the square root machine further comprises a material pressing mechanism and an edge material clamping mechanism; the material pressing mechanism and the edge material clamping mechanism are respectively connected with the control system; the material pressing mechanism is arranged at the end of the linear guide rail and is used to press the workpiece to be cut; two edge material clamping mechanisms are symmetrically arranged on the two sides of the linear guide rail and are located between the cutter head cutting mechanism and the linear guide rail, and are used to remove the edge waste after cutting.

[0021] The beneficial effects of the application are as follows:

[0022] The numerical control precision high-speed annular wire square root machine has a machining precision of more than microns, solves the chip removal problem, can be applied to the square root process of various sizes of silicon rods on the market, has a machining efficiency of more than 5 mm to 20 mm per minute, occupies a small space, and can complete the square root machining of multiple silicon rods at a time.

[0023] The application utilizes the closed loop formed by the annular wire to realize the continuous machining of the workpiece by the single annular wire without reversing, reduces the mechanical shaking of the annular wire through the tensioning device, makes the whole machining process of the workpiece be carried out under the same specification of the annular wire, avoids the phenomenon that the upper and lower tolerances of the workpiece machining are different, and besides, the annular wires of each cutting wheel system do not interfere with each other, so that the size of each workpiece is consistent, the size and tolerance of each workpiece are highly consistent, high-precision cutting is realized, the precision reaches micrometer level, and the machining process of sawing instead of grinding is realized.

[0024] The application is designed to be high-speed with the linear speed of more than 50 meters per second, even more than 100 meters per second, utilizes the infinite circulation property of the annular wire, and makes each annular wire be capable of carrying out high-speed and high-precision continuous cutting of the workpiece without reversing, that is, the cycle process of acceleration, deceleration, pause, reversing and re-acceleration without back and forth, so that the effective time of participating in cutting is greatly improved, and high-efficiency cutting is realized, and the machining efficiency is more than twice of the existing machining process.

[0025] The application controls the actions of the feeding and discharging mechanism, the rotating centering workbench mechanism, the cutter head cutting mechanism, the pressing mechanism, the edge clamping mechanism and the walking system through the control system, and the square opening machining of the workpiece can be realized automatically from feeding to discharging without manual intervention, and the whole process can be realized automatically, such as cooperating with the automatic feeding and discharging equipment and the waste collecting equipment, so that the unmanned intelligent manufacturing of the whole process can be realized.

[0026] The application changes the posture of the workpiece through the turnover conveying platform, facilitates machining, and guarantees the stability of the workpiece in the turnover process through the setting of the fork arm, the upper feeding conveying platform, the drum on the turnover conveying platform and the unpowered roller.

[0027] The application carries out radial centering of the workpiece through the rotating centering workbench mechanism, can avoid the circumference error of the workpiece, and greatly improves the cutting precision; the workpiece is driven to rotate through the workbench rotating part, so that the square opening cutting of multiple surfaces can be realized, and the square opening machining of the polygonal column structure can be conveniently realized. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure perspective view of the annular wire square opening machine of the application, and one single work position square opening machine is hidden in the shell, which is convenient for identifying the drawing;

[0029] Figure 2 It is a top view of the annular wire square opening machine of the application;

[0030] Figure 3 It is a front view of the feeding and discharging mechanism in the application;

[0031] Figure 4 It is a perspective view of the feeding and discharging mechanism in the application, and the state in the drawing is that the feeding is being turned over;

[0032] Figure 5 It is a three-dimensional schematic view of the rotating centering workbench mechanism in the application;

[0033] Figure 6 It is a front three-dimensional schematic view of the cutter head cutting mechanism in the application, wherein the sliding seat is represented by transparent dotted lines, facilitating the identification of the drawing;

[0034] Figure 7 It is a back three-dimensional schematic view of the cutter head cutting mechanism in the application;

[0035] Figure 8 It is a three-dimensional schematic view of the pressing mechanism in the application;

[0036] Figure 9 It is a three-dimensional schematic view of the edge clamping mechanism in the application.

[0037] 1- frame, 2- feeding and discharging mechanism, 2.1- feeding and discharging base, 2.2- feeding platform, 2.3- overturning conveying platform, 2.4- oil cylinder lifting part, 2.5- gear advancing and retreating part, 3- rotating centering workbench mechanism, 3.1- workbench rotating part, 3.2- cylinder lifting and centering part, 4- cutter head cutting mechanism, 4.1- sliding seat, 4.2- cutter head translation device, 4.3- cutter head feeding device, 4.4- cutting roller, 4.5- winding roller, 4.6- cutting fluid supply system, 4.7- annular wire, 4.8- water baffle, 4.9- tensioning device, 4.10- cutter head seat, 5- pressing mechanism, 5.1- pressing seat, 5.2- pressing transmission assembly, 5.3- contact sensor, 5.4- sliding pressing assembly, 6- edge clamping mechanism, 6.1- material conveying base, 6.2- material conveying transmission assembly, 6.3- material conveying sliding assembly, 6.4- clamping seat assembly, 6.5- edge clamping transmission assembly, 6.6- edge clamping sliding plate assembly, 7- workpiece to be cut, 8- cut workpiece, 9- gear and rack walking part. DETAILED DESCRIPTION

[0038] The specific embodiments of the application will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the application, but not to limit the scope of the application.

[0039] The up, down, left, right, inner, outer, front end, rear end, head, tail and other orientation or positional relationship terms in the present application are established based on the orientation or positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly, and therefore cannot be understood as a limitation on the scope of protection.

[0040] In the present application, the terms "mounting", "connecting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, it can also be detachably connected, it can also be integrally connected, it can also be mechanically connected, it can also be electrically connected or can communicate with each other, it can also be directly connected, it can also be indirectly connected through an intermediate medium, it can be the communication between the two components, or it can be the interaction relationship between the two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The embodiment describes a circle line square machine, which has a machining precision of more than microns, solves the chip removal problem, can be applied to the square process of various sizes of silicon rods on the market, and has a machining efficiency of more than 5 to 20 mm per minute, and has a small floor space. The square machine of the embodiment can be placed symmetrically left and right to form a double-station square machine, ensuring that two silicon rods can be machined at the same time.

[0042] As shown in Figure 1 and Figure 2 , the square machine includes a rack 1, a feeding and discharging mechanism 2, a rotating centering workbench mechanism 3, a cutter head cutting mechanism 4, a pressing mechanism 5, an edge clamping mechanism 6, a walking system, and a control system. The control system is used to control the actions of the feeding and discharging mechanism 2, the rotating centering workbench mechanism 3, the cutter head cutting mechanism 4, the pressing mechanism 5, the edge clamping mechanism 6, and the walking system. The feeding and discharging mechanism 2 is installed on the rack 1 and is used for feeding and discharging workpieces. The rotating centering workbench mechanism 3 is movably connected with the linear guide rail in the walking system of the rack 1, and can move along the linear guide rail under the driving of the walking system. The two cutter head cutting mechanisms 4 are symmetrically arranged on the left and right sides of the linear guide rail and movably connected with the rack 1. The pressing mechanism 5 is installed on the rack 1 through a pressing seat and located at the end of the linear guide rail. The two edge clamping mechanisms 6 are symmetrically fixedly installed on the rack 1 through material conveying bases on the left and right sides of the linear guide rail and located between the cutter head cutting mechanisms 4 and the linear guide rail, and are used for conveying the corner waste generated after the cutter head cutting mechanism 4 cuts. The workpieces in the embodiment include but are not limited to silicon rods, and are divided into to-be-cut workpieces 7 and cut workpieces 8 according to the cutting state.

[0043] The rack 1 is used for mounting and connecting various mechanisms and has a certain strength to support the self-weight load and cutting load of each mechanism. A plurality of shock-absorbing pad irons are uniformly distributed at the bottom of the rack 1. The height and levelness of the rack 1 can be adjusted through the shock-absorbing pad irons to ensure the precision and stability of the movement of each mechanism and effectively eliminate the adverse effects of vibration on cutting precision. In addition, water channels corresponding to the working positions of the feeding and discharging mechanism 2, the rotating centering workbench mechanism 3, and the cutter head cutting mechanism 4 are arranged on the rack 1 to collect cutting fluid, which is beneficial to the recycling of the cutting fluid.

[0044] The feeding and discharging mechanism 2 is installed on one side of the linear guide rail of the walking system, and is used for feeding and discharging workpieces and adjusting the posture of the workpieces, so as to facilitate subsequent processes. Figure 3 and Figure 4 As shown in the drawings, the feeding and discharging mechanism 2 comprises a feeding and discharging base 2.1, a feeding conveying platform 2.2, a turnover conveying platform 2.3, a cylinder lifting part 2.4, and a gear advancing and retreating part 2.5.

[0045] The feeding conveying platform 2.2 is installed on the feeding and discharging base 2.1, and is used for feeding workpieces to be cut and discharging workpieces after cutting. The turnover conveying platform 2.3 is hingedly installed on the translation slide plate of the cylinder lifting part 2.4 at the end close to the linear guide rail. The cylinder lifting part 2.4 is slidably connected to the linear slide rail of the gear advancing and retreating part 2.5 through the translation slide plate. The linear slide rail is installed on the feeding and discharging base 2.1. The driving motor of the gear advancing and retreating part 2.5 is installed below the translation slide plate and is in meshing connection with the rack installed on the feeding and discharging base 2.1. The cylinder lifting part 2.4 can slide along the linear slide rail under the driving of the gear advancing and retreating part 2.5. The cylinder body of the cylinder lifting part 2.4 is hingedly connected to the translation slide plate. The piston rod penetrates through the middle part of the translation slide plate and is hingedly connected to the bottom of the turnover conveying platform 2.3. The piston rod pushes the turnover conveying platform 2.3 to turn 90° under the action of the cylinder of the cylinder lifting part 2.4. The rack of the gear advancing and retreating part 2.5 is installed on the feeding and discharging base 2.1. The advancing and retreating motor of the gear advancing and retreating part 2.5 is installed below the translation slide plate and is in meshing connection with the rack. The advancing and retreating motor drives the cylinder lifting part 2.4 and the turnover conveying platform 2.3 to move along the linear slide rail through gear meshing transmission. The feeding conveying platform 2.2 and the turnover conveying platform 2.3 of the embodiment are coaxial and flush in the horizontal state, which facilitates the conveying of workpieces. The upper surfaces of the feeding conveying platform 2.2 and the turnover conveying platform 2.3 are both in U shape. A plurality of parallel rollers are uniformly distributed on the upper surfaces to form roller conveying tracks. Symmetrical unpowered rollers are provided on both sides of the rollers and are inclined inward. The unpowered rollers are installed on the upper surfaces of the feeding conveying platform 2.2 and the turnover conveying platform 2.3 through roller seats. The rollers convey workpieces under the driving of the conveying motor. The turnover conveying platform 2.3 of the embodiment is provided with a fork arm for positioning workpieces at the end close to the linear guide rail. The fork arm can be a U-shaped plate and is perpendicular to the surface of the turnover conveying platform 2.3. The opening of the fork arm faces upward of the turnover conveying platform 2.3. When the workpiece contacts the fork arm, the cylinder lifting part 2.4 controls the turnover conveying platform 2.3 to turn 90° to contact the buffer installed on the rack 1. The fork arm can bear the weight of the workpiece when the workpiece is turned over, so as to prevent the workpiece from tilting and sliding out of the conveying track of the turnover conveying platform 2.3. The workpiece is conveniently turned over to the vertical posture and falls into the workbench of the rotary centering workbench mechanism 3 during feeding.

[0046] After the crane puts the workpiece 7 to be cut into the horizontal state into the feeding conveying platform 2.2, the workpiece 7 to be cut is transported to the turnover conveying platform 2.3 through the roller conveying track. When the workpiece 7 to be cut is conveyed to the turnover position on the turnover conveying platform 2.3, the oil cylinder lifting part 2.4 pushes the turnover conveying platform 2.3 to turn over 90°, the workpiece 7 to be cut is adjusted from the horizontal posture to the vertical posture, the fork arm enters the rotating centering workbench mechanism 3, and the workpiece 7 to be cut is transferred to the platform surface of the rotating centering workbench mechanism 3. The gear advancing and retreating part 2.5 drives the oil cylinder lifting part 2.4 and the turnover conveying platform 2.3 to retreat as a whole, so that the fork arm exits the rotating centering workbench mechanism 3, avoids the rotating centering workbench mechanism 3, and moves to the cutting position under the driving of the walking system to cut the square. When the workpiece 7 to be cut is cut into the workpiece 8, the rotating centering workbench mechanism 3 retreats to the feeding and discharging position along the linear guide rail in the walking system, the gear advancing and retreating part 2.5 controls the oil cylinder lifting part 2.4 and the turnover conveying platform 2.3 to move forward as a whole, the fork arm enters the rotating centering workbench mechanism 3, and is located below the workpiece 8. At this time, the turnover conveying platform 2.3 contacts the workpiece 8 in the vertical state, the oil cylinder lifting part 2.4 turns over the turnover conveying platform 2.3 by 90° (i.e. rotates from the vertical posture to the horizontal posture), transfers the workpiece 8 to the turnover conveying platform 2.3, and adjusts the workpiece 8 from the vertical posture to the horizontal posture. At this time, the non-powered rollers on the two sides of the turnover conveying platform 2.3 contact the side surface of the workpiece 8, and the roller surrounds the workpiece 8 from three sides to ensure the stability of the turnover. Then the workpiece 8 is conveyed to the feeding conveying platform 2.2 through the roller conveying line of the feeding conveying platform 2.2 and the turnover conveying platform 2.3, and the workpiece 8 is taken away by the crane controlled by the manual control.

[0047] The walking system of the embodiment is a gear and rack walking part 9 (see Figure 5 ), which comprises a gear and rack driving assembly and a linear guide rail. The gear and rack driving assembly is installed on the rotating centering workbench mechanism 3, the linear guide rail is installed on the rack 1, and the gear and rack driving assembly drives the rotating centering workbench mechanism 3 to move along the linear guide rail.

[0048] The rotating centering workbench mechanism 3 is used for radial centering of the workpiece and adjusting the cutting angle of the workpiece 7 to be cut. As shown in Figure 5 , the rotating centering workbench mechanism 3 comprises a workbench rotating part 3.1 and a cylinder lifting centering part 3.2.

[0049] The workbench rotating part 3.1 is used to drive the workpiece 7 to rotate horizontally by a predetermined angle, so as to adjust the cutting position of the workpiece 7, and cooperate with the cylinder lifting centering part 3.2 to center the workpiece 7 radially. The workbench rotating part 3.1 comprises a workbench, a workbench seat and a rotating device. The workbench is above the workbench seat and is used to carry the workpiece. The workbench is installed at the top end of the rotating shaft of the rotating device. The rotating device drives the workbench and the workpiece 7 thereon to rotate, so as to adjust the cutting position of the workpiece 7. The rotating device is installed below the workbench seat. The rotating shaft passes through the workbench seat and is movably connected with the workbench seat. The workbench seat is movably connected with the linear guide rail of the gear and rack walking part 9 and is connected with the gear and rack driving assembly of the gear and rack walking part 9. The gear and rack driving assembly drives the workbench rotating part 3.1 to move along the linear guide rail through the workbench seat.

[0050] The cylinder lifting centering part 3.2 comprises a centering seat, a centering clamping cylinder, a lifting cylinder, a centering guide wheel, a guide wheel plate, a centering seat sliding plate and a linear sliding rail. The centering seat is between the workbench and the workbench seat. Two centering clamping cylinders and two linear sliding rails are symmetrically arranged on the upper surface of the centering seat. Two sliding blocks are symmetrically arranged on the linear sliding rails. The two ends of the centering seat sliding plate are respectively installed on the sliding blocks on the same side of the linear sliding rails. The movable clamping pieces on both sides of the centering clamping cylinder are respectively connected with the centering seat sliding plates on the same side. The centering seat sliding plates move in opposite directions under the driving of the centering clamping cylinder. The centering seat sliding plates are connected with the centering guide wheel through the guide wheel plate above the sliding blocks. Two lifting cylinders are symmetrically arranged on both sides of the centering seat and are installed on the workbench seat, and are used to drive the centering seat to lift.

[0051] When the workbench is connected to the workpiece 7 to be cut from the feeding and discharging mechanism 2, the gear and rack walking part 9 drives the rotating centering workbench mechanism 3 to move to the cutting position as a whole, the lifting cylinder is lifted to drive the centering clamping cylinder and the centering guide pulley connected thereto to rise above the lower surface of the workpiece 7 to be cut, and then the centering clamping cylinder is clamped (the centering clamping cylinder has been in an open state all the time), so that the centering guide pulley gradually closes and clamps the workpiece 7 to be cut towards the center, and the workbench rotating part 3.1 controls the rotation of the workbench and the workpiece 7 to be cut. During the rotation, if the center of the workpiece 7 to be cut deviates from the center of the rotating shaft, the corresponding centering guide pulley pushes the workpiece 7 to be cut to move towards the center through the clamping force provided by the centering clamping cylinder. At this time, the workpiece 7 to be cut moves gradually towards the center of the rotating shaft under the action of the rotational inertia force of itself, and keeps concentric, and the contact sensor 5.3 of the pressing mechanism 5 measures the circumferential error of the workpiece 7 to be cut. When the pressing mechanism 5 presses the workpiece 7 to be cut, the centering clamping cylinder is opened, the centering guide pulleys on both sides are driven to open away from the center of the workpiece 7 to be cut, the lifting cylinder drives the centering seat and the centering guide pulley to descend below the workbench plane, and the centering guide pulley has avoided the cutting position. The edge material clamping mechanism 6 moves to the working position, clamps the part to be cut of the workpiece 7 to be cut, and the cutter head cutting mechanism 4 on both sides of the workbench feeds downward to cut the workpiece 7 to be cut. After one cutting is completed, the cutter head cutting mechanism 4 on both sides of the workbench retreats upward to the cutting origin, the edge material clamping mechanism 6 moves the edge material out of the cutting position and to the recycling equipment. The workbench rotating part 3.1 drives the workbench to rotate by a preset angle, the edge material clamping mechanism 6 on both sides of the workpiece 7 to be cut moves to the working position, clamps the part to be cut of the workpiece 7 to be cut, and the cutter head cutting mechanism 4 repeats the cutting action. The above-mentioned retreat and repeat cutting actions are repeated in turn until the square machining process is completed. The gear and rack walking part 9 reverses the action, drives the rotating centering workbench mechanism 3 and the cut workpiece 8 to move to the feeding and discharging position together, and completes the discharging process through the feeding and discharging mechanism 2. After the next workpiece 7 to be cut enters, the next cutting action is automatically performed.

[0052] As shown in Figure 6 and Figure 7 , the cutter head cutting mechanism 4 includes a sliding seat 4.1, a cutter head translation device 4.2, a cutter head feeding device 4.3, a cutting roller 4.4, a winding roller 4.5, a cutting fluid supply system 4.6, a ring wire 4.7, a water baffle 4.8, a tensioning device 4.9, and a cutter head seat 4.10.

[0053] One or two cutting rollers 4.4 and one or more winding rollers 4.5 are respectively installed on the front surface of the tool head seat 4.10. The cutting roller 4.4 is a driving roller, which is directly driven by the rotating driving device on the back surface of the tool head seat 4.10 through a shaft. When two cutting rollers 4.4 are installed, the second cutting roller 4.4 can be determined whether to start the rotating driving device according to the needs. The winding roller 4.5 is a driven roller, which rotates under the driving of the cutting roller 4.4. As shown in Figure 7 The embodiment shown in the figure adopts one cutting roller 4.4 and five winding rollers 4.5, and the annular wire 4.7 is wound on the cutting roller 4.4 and the five winding rollers 4.5 in turn to form a closed loop annular wire, which constitutes a six-wheel cutting train. During the cutting process, the annular wire 4.7 rotates in one direction at a high speed in an endless cycle. Since the annular wire 4.7 only has one acceleration and deceleration process during the whole process, there is no pause phenomenon of returning in the opposite direction when cutting, so that the workpiece 7 to be cut is cut from top to bottom at the same speed and in the same direction, further controlling the machining precision of the single piece from top to bottom in the whole plate of the workpiece 7 to be cut, thereby realizing the machining precision of microns or even higher.

[0054] The roller center planes of the cutting roller 4.4 and the winding roller 4.5 are respectively provided with an annular V groove with the same shape and size, which is used for loading the annular wire 4.7 to form a single-wire cutting. The annular wire 4.7 of the embodiment is a ring-shaped wire with a certain length and a certain diameter, on which diamond micro-powder particles of a required size are plated, and the head and tail of the wire are connected together.

[0055] The tensioning device 4.9 is connected with one winding roller 4.5, which is used for realizing the tension adjustment of the annular wire 4.7 to realize the high-speed rotation of the annular wire 4.7. In the tensioning device 4.9, the motor screw assembly controls the up-down movement of the tensioning sliding plate, the guide wheel seat is fixedly connected on the tensioning sliding plate, and the guide wheel seat is connected with the winding roller 4.5 through the tension sensor. The tension of the annular wire 4.7 is fed back to the control system in real time through the tension sensor, and the control system controls the tension value of the annular wire 4.7 in real time through the motor screw assembly to make it meet the set value.

[0056] A plurality of cutting fluid nozzles in the cutting fluid supply system 4.6 are respectively installed on the tool head seat 4.10, which are located above the cutting position and continuously supply cutting fluid with the feeding of the tool head seat 4.10, so as to lubricate the cutting area, clean the cutting chips, and control and reduce the temperature of the cutting area. The water baffle 4.8 is respectively installed on both sides of the tool head seat 4.10 to prevent the cutting fluid from splashing.

[0057] The tool head seat 4.10 is movably connected with the sliding seat 4.1 through the tool head feeding device 4.3. The tool head feeding device 4.3 in the embodiment can adopt a screw driving system to drive the tool head seat 4.10 and the cutting wheel system and other components thereon to ascend and descend in the vertical direction for feeding and retracting the tool head. The sliding seat 4.1 is slidably connected with the rack 1 through the tool head translation device 4.2. The tool head translation device 4.2 can drive the sliding seat 4.1 and other components thereon to translate in the horizontal direction through a set of screw driving systems, so as to adjust the cutting position, to ensure that the device can be used for cutting workpieces 7 of different sizes.

[0058] The material pressing mechanism 5 is used for pressing the workpiece 7 to be cut, to prevent the precision loss caused by the displacement of the workpiece 7 to be cut due to the shaking of the machine tool during cutting. As shown in Figure 8 The material pressing mechanism 5 includes a material pressing seat 5.1, a material pressing transmission assembly 5.2, a contact sensor 5.3, and a sliding material pressing assembly 5.4. The material pressing seat 5.1 is fixed in the cutting area on the rack 1. The sliding material pressing assembly 5.4 is movably connected with the material pressing seat 5.1 through the material pressing transmission assembly 5.2. The material pressing transmission assembly 5.2 can drive the sliding material pressing assembly 5.4 to move up and down, to adapt to the pressing of workpieces of different heights. The material pressing transmission assembly 5.2 in the embodiment can be a screw driving system. The contact sensor 5.3 is installed on the material pressing seat 5.1, to cooperate with the workbench rotating part 3.1 in the rotary centering workbench mechanism 3. During the rotation of the workbench, the radial run-out of the workpiece 7 to be cut is measured, to realize the measurement of the cutting angle position of the workpiece 7 to be cut, so as to be adjusted in time, to reduce the circumferential error of the workpiece 7 to be cut, and to realize accurate cutting.

[0059] The edge material pressing mechanism 6 is used in cooperation with the tool head cutting mechanism 4, to fix and recycle the edge and corner waste materials during the cutting of the workpiece 7 to be cut, to prevent the edge and corner waste materials from flying or piling up to affect the next cutting of the machine tool. The edge material pressing mechanism 6 will automatically transfer the edge and corner waste materials to the designated position after the cutting is completed, to be recycled by a special edge and corner waste material recycling device.

[0060] As shown in Figure 9As shown, the edge clamping mechanism 6 includes a material conveying base 6.1, a material conveying transmission assembly 6.2, a material conveying sliding assembly 6.3, a clamping seat assembly 6.4, a clamping edge transmission assembly 6.5, and a clamping edge sliding plate assembly 6.6. The material conveying transmission assembly 6.2 is fixed on the rack 1 through the material conveying base 6.1, the material conveying sliding assembly 6.3 is sleeved on the guide shaft of the material conveying transmission assembly 6.2, and the material conveying sliding assembly 6.3 can move horizontally along the guide shaft under the drive of the material conveying transmission assembly 6.2. The clamping seat assembly 6.4 is fixedly installed on the material conveying sliding assembly 6.3 and can move horizontally together with the material conveying sliding assembly 6.3, the clamping edge sliding plate assembly 6.6 is movably connected to the material conveying sliding assembly 6.3 through the clamping edge transmission assembly 6.5, and the clamping edge transmission assembly 6.5 can drive the clamping edge sliding plate assembly 6.6 to move up and down. Before cutting, the clamping edge transmission assembly 6.5 drives the clamping edge sliding plate assembly 6.6 to move downward, drives the clamping top plate in the clamping edge sliding plate assembly 6.6 to move downward, and stops until pressing the upper part of the required cutting part of the workpiece 7 to be cut. At this time, the clamping seat assembly 6.4 is located below the required cutting part of the workpiece 7 to be cut, after the cutting is completed, the clamping seat assembly 6.4 clamps the corner waste separated from the main body of the workpiece 7 together with the clamping top plate, the material conveying transmission assembly 6.2 drives the material conveying sliding assembly 6.3 to move horizontally, transports and transfers the corner waste, and exits the cutting area until the corner waste is removed. The material conveying sliding assembly 6.3 returns to the cutting area.

[0061] The process of opening square by the square opening machine of the embodiment is as follows:

[0062] 1. The workpiece 7 to be cut is manually or automatically controlled by the device to be horizontally placed on the feeding conveying platform 2.2 of the feeding and discharging mechanism 2, and the feeding conveying platform 2.2 transports the workpiece 7 to be cut to the turnover conveying platform 2.3;

[0063] 2. The turnover conveying platform 2.3 is lifted and turned over by 90° by the oil cylinder lifting part 2.4, so that the workpiece 7 to be cut is in a vertical state; and the workpiece 7 to be cut falls on the workbench of the workbench rotating part 3.1 at the feeding and discharging position;

[0064] 3. The gear advancing and retreating part 2.5 controls the turnover conveying platform 2.3 and the oil cylinder lifting part 2.4 to retreat, avoids the walking action of the rotating centering workbench mechanism 3, and then enters the standby state;

[0065] 4、Rotary centering workbench mechanism 3 by gear and rack walking part 9 from the feeding and discharging position to the cutting position; cylinder lifting centering part 3.2 clamps and centers the workpiece 7 to be cut, while the workbench rotating part 3.1 drives the workpiece 7 to be cut to rotate, under the action of the clamping force of the centering and clamping cylinder and the rotational inertia force of the workpiece 7 to be cut, the workpiece 7 to be cut and the workbench rotating part 3.1 of the workbench realize coaxial precision control, and the contact sensor 5.3 in the pressing mechanism 5 measures the radial runout of the workpiece 7 to be cut, so as to realize the angle position measurement of the single crystal silicon rod wire, and realize accurate cutting;

[0066] 5、After the workpiece 7 to be cut is centered, the cylinder lifting centering part 3.2 retreats, the sliding pressing assembly 5.4 in the pressing mechanism 5 moves downward to press the workpiece 7 to be cut, the material conveying sliding assembly 6.3, the material clamping seat assembly 6.4, the edge material clamping transmission assembly 6.5 and the edge material clamping sliding plate assembly 6.6 in the edge material clamping mechanism 6 enter the cutting position, the edge material clamping sliding plate assembly 6.6 moves downward to clamp the cut part of the workpiece 7 to be cut;

[0067] 6、The cutter head cutting mechanism 4 is driven by the cutter head translation device 4.2 to the set cutting size, the cutting roller 4.4 starts to rotate, the cutting fluid supply system 4.6 starts to supply cutting fluid, the cutting roller 4.4 reaches the preset speed, and after the tensioning device 4.9 confirms that the tension of the annular wire 4.7 meets the standard, the cutter head feeding device 4.3 starts to drive the cutter head seat 4.10 and the cutting roller train thereon to feed downward until it cuts below the workpiece 7 to be cut, the cutter head feeding device 4.3 retreats to the original position above, the edge material clamping mechanism 6 conveys the corner waste, and the pressing mechanism 5 loosens the workpiece 7 to be cut upward;

[0068] 7、The workbench rotating part 3.1 drives the workpiece 7 to be cut to rotate by a predetermined angle, the pressing mechanism 5 presses the workpiece 7 to be cut downward again, and the edge material clamping mechanism 6 clamps the cut part of the workpiece 7 to be cut again; the cutter head cutting mechanism 4 repeats the cutting feeding and retreat actions, the edge material clamping mechanism 6 conveys the corner waste again, the pressing mechanism 5 loosens the workpiece 7 to be cut upward again, and the steps are repeated until the workpiece 7 to be cut is machined to form the cut workpiece 8;

[0069] 8、The rotary centering workbench mechanism 3 sends the cut workpiece 8 to the feeding and discharging area, the gear advancing and retreating part 2.5 in the standby feeding and discharging mechanism 2 controls the turnover conveying platform 2.3 and the oil cylinder lifting part 2.4 to enter the material taking position, the oil cylinder lifting part 2.4 retracts the turnover conveying platform 2.3 by 90°, the turnover conveying platform 2.3 conveys the cut workpiece 8 to the feeding conveying platform 2.2, and waits for manual or automatic equipment to take it away, thus waiting for the next workpiece 7 to be cut to enter.

[0070] Although the principles of the present application have been described in connection with the preferred embodiments thereof with reference to the drawings, it should be understood that the application is not limited to the construction and arrangements of the preferred embodiments as set forth above and above. The skilled in the art will appreciate that various adaptations and modifications of the preferred embodiments described above can be accomplished using equivalent means, without departing from the scope of the present application. Accordingly, the application is not limited to the specific embodiments described above, but only by the scope of the appended claims.

Claims

1. A circular square root machine characterized by, The cutting machine comprises a feeding and discharging mechanism (2), a rotating centering workbench mechanism (3), a cutter head cutting mechanism (4), a walking system and a control system; the feeding and discharging mechanism (2), the rotating centering workbench mechanism (3), the cutter head cutting mechanism (4) and the walking system are connected with the control system respectively; The feeding and discharging mechanism (2) is arranged on one side of the linear guide rail of the walking system and is used for feeding and discharging workpieces. The rotating centering workbench mechanism (3) comprises a workbench rotating part (3.1) and a cylinder lifting centering part (3.2); the workbench rotating part (3.1) is movably connected to the linear guide rail; the cylinder lifting centering part (3.2) comprises centering clamping cylinders, a centering seat sliding plate and centering guide wheels; two centering clamping cylinders are symmetrically arranged on the upper two sides of the workbench rotating part (3.1); the movable clamping pieces on the two sides of the centering clamping cylinders are respectively connected to the same sides of the centering seat sliding plates which are symmetrically arranged on the workbench rotating part (3.1) in a sliding mode; the centering clamping cylinders drive the two centering seat sliding plates to move in opposite directions; The upper surfaces of the centering seat sliding plates are respectively provided with the centering guide wheels; while the workbench rotating part (3.1) is controlled to drive the workpiece to be cut (7) to rotate, the cylinder lifting centering part (3.2) is controlled to drive the centering guide wheels to gradually contract to automatically radially center the workpiece to be cut (7), the workpiece to be cut (7) is coaxial with the workbench rotating part (3.1) under the action of clamping force and the rotational inertia force of the workpiece to be cut (7), the workbench rotating part (3.1) horizontally rotates the workpiece to be cut (7) to adjust the cutting position; the walking system drives the rotating centering workbench mechanism (3) to move along the linear guide rail between the feeding and discharging positions and the cutting area; In the cutting area, two cutter head cutting mechanisms (4) are symmetrically arranged on the two sides of the linear guide rail and are used for symmetrically cutting the workpiece to be cut (7).

2. The ring line square root machine of claim 1, wherein, The feeding and discharging mechanism (2) comprises a feeding and discharging base (2.1), a feeding conveying platform (2.2) and a turnover conveying platform (2.3); the feeding conveying platform (2.2) is arranged on the feeding and discharging base (2.1) and is used for feeding and discharging the workpiece to be cut (7) and the cut workpiece (8); the bottom of the turnover conveying platform (2.3) close to the outer end of the linear guide rail is movably connected to the feeding and discharging base (2.1), and the turnover conveying platform (2.3) can be upwardly turned by 90°.

3. The ring line square root machine of claim 2, wherein, The feeding and discharging mechanism (2) further comprises a cylinder jacking part (2.4); the bottom of the turnover conveying platform (2.3) close to the outer end of the linear guide rail is hingedly connected to the translation sliding plate of the cylinder jacking part (2.4); the translation sliding plate is slidably connected to the feeding and discharging base (2.1), the cylinder in the cylinder jacking part (2.4) is hingedly connected to the bottom surface of the turnover conveying platform (2.3) through a piston rod, and the cylinder pushes the turnover conveying platform (2.3) to be upwardly turned by 90°.

4. The ring line square root machine of claim 3, wherein, The feeding and discharging mechanism (2) further comprises a gear advancing and retreating part (2.5) comprising a linear slide rail, a rack and an advancing and retreating motor; the oil cylinder jacking part (2.4) is slidingly connected to the linear slide rail through the translation slide plate; the rack and the linear slide rail are respectively installed on the feeding and discharging base (2.1); the advancing and retreating motor is installed below the translation slide plate and is in meshing connection with the rack, and the advancing and retreating motor drives the oil cylinder jacking part (2.4) to slide along the linear slide rail through meshing transmission.

5. The ring line square root machine of claim 2, wherein, The turnover conveying platform (2.3) is provided with a fork arm at the end close to the linear guide rail, the fork arm is a U-shaped plate perpendicular to the surface of the turnover conveying platform (2.3) and has an opening facing upward of the turnover conveying platform (2.3).

6. The ring line square root machine of claim 1, wherein, The workbench rotating part (3.1) comprises a workbench, a workbench base and a rotating device; the rotating device is installed below the workbench base, the rotating shaft of the rotating device penetrates through the workbench base and is connected to the workbench, the rotating device drives the workbench to rotate, and the workbench is used for carrying the workpiece; the workbench base is movably connected to the linear guide rail, and the walking system drives the workbench base to move along the linear guide rail.

7. The ring line square root machine of claim 6, wherein, The cylinder lifting and centering part (3.2) further comprises a centering base, lifting cylinders, guide wheel plates and linear slide rails; the centering base is located between the workbench and the workbench base, two centering clamping cylinders and two linear slide rails are respectively and symmetrically arranged on two sides of the upper surface of the centering base, two sliders are symmetrically arranged on the linear slide rails, the two ends of the centering base slide plate are respectively installed on the sliders on the same side of the linear slide rails, the centering base slide plate is connected to the centering guide wheels through the guide wheel plates above the sliders, and two lifting cylinders are symmetrically arranged on two sides of the centering base and are installed on the workbench base and used for driving the centering base to lift.

8. The ring line square root machine of claim 1, wherein, The cutter head cutting mechanism (4) comprises a sliding seat (4.1), a cutter head translation device (4.2), a cutter head feeding device (4.3), a cutting roller (4.4), a winding roller (4.5), an annular wire (4.7) and a cutter head seat (4.10). One or two cutting rollers (4.4) and one or more winding rollers (4.5) are respectively installed on the cutter head seat (4.10), and the annular wire (4.7) is wound on the cutting roller (4.4) and the winding roller (4.5) in sequence to form a closed loop wire and a cutting roller train. The cutter head seat (4.10) is movably connected to the sliding seat (4.1) through the cutter head feeding device (4.3), and the cutter head feeding device (4.3) is used for driving the cutter head seat (4.10) and the cutting roller train to lift, feed and retreat. The sliding seat (4.1) is slidingly connected to the cutter head translation device (4.2), and the cutter head translation device (4.2) drives the sliding seat (4.1) to slide translationally.

9. The ring-squaring machine of claim 1, wherein, The square root machine further comprises a material pressing mechanism (5) and a material clamping mechanism (6); the material pressing mechanism (5) and the material clamping mechanism (6) are connected with the control system respectively; the material pressing mechanism (5) is arranged at the end of the linear guide rail and is used for pressing the workpiece (7) to be cut; two material clamping mechanisms (6) are symmetrically arranged on the two sides of the linear guide rail and are located between the cutter head cutting mechanism (4) and the linear guide rail and are used for removing the corner waste material cut off.

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