A machine tool with truncation and external circle processing functions and a machine tool processing method

Abstract

The present invention relates to a machine tool with truncation and external circle processing functions and a machine tool processing method, comprising a workbench, a horizontal feeding device, a crystal rod external circle cutting rotary device and a crystal rod truncation rotary device, and two cutting head mechanisms. The horizontal feeding device can make reciprocating linear motion relative to the workbench. The two cutting head mechanisms are respectively arranged on both sides of the workbench and are symmetrically arranged. The crystal rod external circle cutting rotary device can drive the first crystal rod to make reciprocating rotational motion. The crystal rod truncation rotary device can drive the crystal rod to make reciprocating rotational motion. The cutting of superhard materials can be achieved by swinging between the two cutting head mechanisms. A crystal rod external circle cutting rotary device is also provided on the diamond wire single-wire truncation machine, and the truncation machine and the crystal rod external circle cutting rotary device cooperate with the horizontal feeding device and the cutting head mechanism to achieve external circle cutting. This machine tool can not only truncate the crystal rod but also make external circle cutting on the crystal rod, so as to realize multifunctional processing of the crystal rod, and one machine has multiple uses.

Description

Technical Field

[0001] The invention relates to the technical field of optical crystal rod cutting, and in particular to a machine tool with cutting and outer circle processing functions and a machine tool processing method. Background Art

[0002] The cutting principle of the diamond wire cutting machine is similar to that of the bow saw. That is, the diamond wire is driven to reciprocate by the wire winding drum that rotates and reciprocates at high speed. The two ends of the diamond wire are tensioned by the take-up wheel and the wire protection wheel respectively. At the same time, two guide wheels are added on the take-up side and the pay-off side to ensure the cutting accuracy and surface shape. Then, by controlling the cutting head of the diamond wire to continuously feed in the direction of the workbench, grinding is generated between the diamond wire and the object to be cut to form a cut. The diamond wire cutting machine can cut many materials, including semiconductor crystalline silicon. The conductivity of semiconductor crystalline silicon at room temperature is between that of conductors and insulators. Monocrystalline silicon is an important semiconductor material used to manufacture high-power transistors, rectifiers, solar cells, etc.

[0003] The existing cutting head generally includes two cutting wheels respectively arranged on the wire-receiving side and the wire-releasing side. The diamond wire reciprocates between the two cutting wheels to cut the crystal rod, and the two cutting wheels are installed on the same feeding device. The two cutting wheels are simultaneously controlled by the same feeding device to move up and down to drive the cutting head to move toward the workbench where the crystal rod is placed. Therefore, the relative positions of the two cutting wheels are fixed and immutable, and the two cutting heads move up and down at the same time. When the cutting head processes the crystal rod of superhard material, it is required that the diamond wire can swing or the workpiece can swing to improve the cutting ability and cutting quality, but the existing cutting head swing structure is very complicated. Therefore, the integral cutting head is only suitable for processing hard and brittle materials with low hardness of the crystal rod, and is not suitable for cutting high hardness materials such as silicon carbide, gallium nitride, and sapphire. At the same time, the existing cutting machine can only slice or square the crystal rod, and the function is relatively single. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a machine tool with truncation and external circle processing functions and a machine tool processing method, which solves the technical problems that the relative positions of the two cutting wheels are fixed and immutable and the machine tool processing function is single.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] A machine tool with cutting and outer circle processing functions provided in an embodiment of the present invention comprises a workbench, a horizontal feeding device arranged on the workbench, a crystal rod outer circle cutting rotary device and a crystal rod cutting rotary device arranged on the horizontal feeding device, and two cutting head mechanisms respectively arranged on both sides of the horizontal feeding device and arranged symmetrically with each other;

[0009] The crystal rod outer circle cutting and rotating device can drive the first crystal rod to perform reciprocating rotational motion; and the central axis of the first crystal rod and the diamond wire on the cutting wheel are parallel to each other;

[0010] The crystal ingot cutting and rotating device can drive the second crystal ingot to perform reciprocating rotational motion; and the central axis of the second crystal ingot and the diamond wire on the cutting wheel are perpendicular to each other;

[0011] The horizontal feeding device can drive the crystal rod outer circle cutting rotary device and the crystal rod cutting rotary device to perform reciprocating linear motion in the horizontal direction relative to the workbench;

[0012] The cutting head mechanism includes a feed assembly arranged on the workbench and a cutting wheel body arranged on the feed assembly, and the feed assembly can drive the cutting wheel body to move up and down so that the diamond wire between the two cutting wheel bodies can cut the first crystal rod or the second crystal rod to be processed.

[0013] Optionally, the feeding assembly includes a driving member, a feeding guide rail and a feeding body;

[0014] The driving member is connected to the feeding body;

[0015] The feed guide rail is fixedly installed on one side of the support part, the feed guide rail is slidably connected to the feed body, and the driving member drives the feed body to slide along the feed guide rail.

[0016] Optionally, the feeding body comprises a connection box having an opening and a mounting baffle detachably arranged at the opening;

[0017] The connection box comprises a connection wall and a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially arranged around the connection wall;

[0018] A connecting slide is fixedly installed on one side of the connecting wall, the connecting slide is slidably connected to the feed guide rail, and the connecting slide is connected to the driving member;

[0019] The cutting wheel body is rotatably mounted on the first side wall.

[0020] Optionally, a connection side wall area of ​​the connection wall is smaller than a connection side wall area of ​​the connection slide.

[0021] Optionally, the cutting head mechanism further comprises the supporting portion, the supporting portion comprises a supporting column, the supporting column has a hollow chamber, and the driving member is arranged in the hollow chamber;

[0022] An opening communicating with the hollow chamber is formed on one side wall of the supporting column, and the feed guide rails are fixedly mounted on both sides of the opening.

[0023] Optionally, the crystal rod outer circle cutting rotary device has a first rotating end surface, and the first rotating end surface is used for fixing and mounting the first crystal rod to be cut;

[0024] The central axis of the first rotating end face coincides with the central axis of the first crystal rod;

[0025] The crystal ingot cutting and rotating device has a second rotating end surface, and the second rotating end surface is used for fixing and mounting a second crystal ingot to be cut;

[0026] The central axis of the second rotation end face coincides with the central axis of the second crystal rod.

[0027] Optionally, the horizontal feeding device includes a horizontal feeding motor, a horizontal guide rail, a horizontal adjustment screw and a horizontal table surface;

[0028] The horizontal feed motor is fixedly arranged on the workbench, and the output end of the horizontal feed motor is connected to the horizontal adjustment screw through a horizontal reducer;

[0029] The horizontal guide rail is fixedly mounted on the workbench;

[0030] The horizontal adjustment screw has a screw nut capable of converting rotational motion into linear motion, and the screw nut is connected to the horizontal platform surface; the horizontal platform surface is slidably connected to the horizontal guide rail.

[0031] Optionally, the crystal rod outer circle cutting rotary device comprises an outer circle cutting rotary support, an outer circle cutting rotary motor, a toothed belt pulley set and a toothed belt arranged on the horizontal feeding device;

[0032] The outer circle cutting rotary motor is connected to the toothed belt pulley set via an outer circle cutting reducer;

[0033] The toothed belt is sleeved on the outside of the toothed belt wheel set, and the toothed belt is meshed with the toothed belt wheel set;

[0034] One end of the toothed belt wheel set is fixedly connected to an outer circle cutting rotary shaft;

[0035] The first rotating end face is the end face of the outer circle cutting rotating shaft.

[0036] Optionally, the crystal rod cutting and rotating device comprises a cutting and rotating support, a cutting and rotating motor and a cutting and rotating shaft arranged on the horizontal feeding device;

[0037] The truncated rotary motor is connected to the truncated rotary shaft via a truncated reducer;

[0038] The second rotation end surface is an end surface of the truncated rotation axis.

[0039] A machine tool processing method based on the machine tool with truncation and external circle processing functions, the method comprises the following steps:

[0040] When the second crystal ingot needs to be cut, the second crystal ingot is fixed on the second crystal ingot cutting and rotating device, and the feeding components of the cutting head mechanisms on both sides are started, and the feeding components simultaneously drive the two cutting wheel bodies to perform synchronous, vertical linear reciprocating motion along the supporting part;

[0041] Then, the second crystal ingot cutting rotating device is started, and the second crystal ingot cutting rotating device drives the second crystal ingot to rotate along its axis, so as to drive the diamond wire on the cutting wheel body to cut the second crystal ingot, until the diamond wire on the cutting wheel body cuts off the second crystal ingot;

[0042] When the first crystal ingot needs to be cut into an outer circle, the first crystal ingot is fixed on the crystal ingot outer circle cutting rotary device, and the feed components of the cutting head mechanisms on both sides are started, and the feed components simultaneously drive the two cutting wheel bodies to perform synchronous, vertical linear reciprocating motion along the support portion until the cutting wheel bodies enter the position to be cut in the first crystal ingot along the radial direction of the first crystal ingot, and then the feed components are stopped;

[0043] Then, the crystal rod outer circle cutting rotary device is started to rotate to drive the diamond wire on the cutting wheel body to perform outer circle cutting on the crystal rod.

[0044] (III) Beneficial effects

[0045] The beneficial effects of the present invention are as follows: a machine tool with the functions of cutting and outer circle processing of the present invention is provided with a cutting head mechanism where two cutting wheel bodies are located as two separate individuals, and the two cutting head mechanisms are respectively arranged on a support part through a feed assembly, and the two cutting wheel bodies can respectively move up and down relative to the support part on the feed assembly, so that the relative positions of the two cutting wheel bodies are in a non-fixed form, and the two cutting bodies can move relative to each other. That is, when the cutting head mechanism processes a crystal rod of a superhard material, it is required that the diamond wire can swing or the workpiece can swing, and the cutting of the superhard material can be achieved by swinging between the two cutting head mechanisms, and the structure is simple and easy to operate. A crystal rod outer circle cutting rotary device is provided on the diamond wire single-wire cutting machine at the same time, and the cutting machine and the crystal rod outer circle cutting rotary device cooperate with the horizontal feeding device and the cutting head mechanism to achieve outer circle cutting. In other words, this machine tool has the function of cutting the crystal rod outer circle on the basis of the original cutting of the crystal rod, so as to realize the multifunctional processing of the crystal rod, and one machine has multiple uses, and the structure is simple, which is convenient for installation and replacement, and thus convenient for subsequent maintenance and care work, thereby improving the efficiency of the cutting machine in processing the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a main structural stereogram of the single-wire cutting machine for diamond wires of the present invention;

[0047] Figure 2 It is a schematic diagram of the three-dimensional structure of the main part of the cutting head mechanism of the present invention;

[0048] Figure 3 It is a schematic diagram of the top view of the middle part of the single-wire cutting machine for diamond wires of the present invention;

[0049] Figure 4 for Figure 3 The left side structural diagram of .

[0050] [Description of Reference Numerals]

[0051] 1: cutting head mechanism; 11: supporting part; 12: feeding assembly; 121: feeding guide rail; 122: connecting box; 1221: connecting wall; 1222: first side wall; 1223: second side wall; 123: mounting baffle; 124: connecting slide; 13: cutting wheel body; 2: working table; 3: dust cover; 4: passing wheel; 5: crystal rod outer circle cutting rotary device; 51: outer circle cutting rotary motor; 52: outer circle cutting reducer; 53: toothed belt pulley group; 531: first toothed belt pulley; 532: second toothed belt pulley; 54: toothed belt; 55: outer circle cutting rotary shaft; 56: outer circle cutting rotary control box; 57: outer circle cutting rotary bracket; 6: crystal rod cutting rotary device; 61: cutting rotary bracket; 62: cutting rotary motor; 63: cutting reducer; 64: cutting rotary shaft; 65: cutting rotary control box; 7: horizontal feeding device; 71: horizontal feeding motor; 72: horizontal reducer; 73: horizontal guide rail; 74: horizontal adjustment screw; 75: horizontal platform; 8: slicing receiving platform; 10: bracket support plate; 100': first crystal rod; 100: second crystal rod. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. Figure 1 The orientation of is used as a reference. The side where the workbench 2 is located is defined as "bottom"; the two sides of the workbench 2 are defined as "left" and "right"; the side where the workbench horizontal feed device is located relative to the cutting head mechanism is defined as "front". Figure 1 The direction facing inward from the paper is the horizontal direction.

[0053] See also Figure 1 As shown, a single-wire diamond wire cutting machine comprises a workbench 2, a crystal rod outer circle cutting rotary device 5, a crystal rod cutting rotary device 6 and a split cutting head mechanism. The split cutting head mechanism is arranged on the left and right sides of the workbench 2.

[0054] Among them, see Figure 1 As shown, a split cutting head mechanism includes cutting head mechanisms 1 which are arranged on both sides of a workbench 2 and are symmetrically arranged with respect to each other.

[0055] It should be noted that a diamond wire is wound around the cutting wheel body 13 , and the diamond wire is acted upon by a wire taking-up device and a wire releasing device.

[0056] The cutting head mechanism 1 comprises a supporting portion 11 , a feeding assembly 12 and a cutting wheel body 13 .

[0057] The support portion 11 is disposed on the workbench 2 , and the support portion 11 is used to support the feeding assembly 12 .

[0058] The cutting wheel body 13 is disposed on the feeding assembly 12 , and the feeding assembly 12 is disposed on one side of the supporting portion 11 . The feeding assembly 12 can drive the cutting wheel body 13 to perform linear reciprocating motion relative to the supporting portion 11 .

[0059] The present invention provides a machine tool with truncation and external cylindrical processing functions, wherein the cutting head mechanism 1 where two cutting wheel bodies 13 are located is treated as two separate individuals, and the two cutting head mechanisms 1 are respectively arranged on the support portion 11 through a feed assembly, and the two cutting wheel bodies 13 can respectively move up and down relative to the support portion 11 on the feed assembly 12, so that the relative positions of the two cutting wheel bodies 13 are in a non-fixed form, and the two cutting bodies can move relatively. That is, when the cutting head mechanism processes a crystal rod of a superhard material, it is required that the diamond wire can swing or the workpiece can swing, and the cutting of the superhard material can be achieved by the swing between the two cutting head mechanisms 1, and the structure is simple and easy to operate. At the same time, if the size of the crystal rod is too large, the size of the mounting plate will not be too large because the two cutting head mechanisms 1 share a mounting plate, thereby avoiding the influence of the weight of the mounting plate on the accuracy of the diamond wire feeding device, thereby improving the cutting ability and cutting quality.

[0060] Furthermore, the feeding assembly 12 includes a driving member, a feeding guide rail 121 and a feeding body.

[0061] The driving member is connected to the feeding body.

[0062] The feeding guide rail 121 is fixedly installed on one side of the supporting portion 11 , and the feeding guide rail 121 slides in cooperation with the feeding body, so that the feeding body slides along the feeding guide rail 121 under the driving of the driving member.

[0063] It should be noted that the driving parts are controlled by a PLC system, which can be easily operated and formed.

[0064] Furthermore, the driving component includes a motor, a reducer and a lead screw.

[0065] The motor is arranged in the hollow chamber, the driving end of the motor is connected to the reducer, the driving end of the reducer is connected to the lead screw, and the lead screw is connected to the connecting slide 124.

[0066] In this embodiment, the feed motor rotates to drive the lead screw to rotate, and the lead screw rotates to cause the lead screw nut screwed on its outside to move up and down along its outside, thereby driving the connecting slide 124 to move up and down along the feed guide rail 121, so that the diamond wire on the cutting body 13 contacts the crystal rod to complete the truncation cutting or the cutting of the circumscribed circle of the crystal rod.

[0067] Further, see Figure 2As shown, the feed body includes an open connection box 122 and a detachable mounting baffle 123 disposed at the open position. The connection box 122 is hollow inside to facilitate the installation of the cutting wheel body 13, while the mounting baffle 123 plays a protective role and is easy to disassemble and thus facilitate the later maintenance of the cutting wheel body 13.

[0068] The connection box 122 has a connection wall 1221 and a first side wall 1222 , a second side wall 1223 , a third side wall (not shown in the figure) and a fourth side wall (not shown in the figure) which are sequentially arranged around the connection wall 1221 .

[0069] It should be noted that the second side wall 1223 is in a right-angle trapezoidal shape, which reasonably utilizes the space and does not affect the work of other components.

[0070] A connecting slide 124 is fixedly mounted on one side of the connecting wall 1221 . The connecting slide 124 slides in cooperation with the feed guide rail 121 , and the connecting slide 124 is connected to the driving member.

[0071] The cutting wheel body 13 is rotatably mounted on the first side wall 1222 .

[0072] Further, the connecting side wall area of ​​the connecting wall 1221 is smaller than the connecting side wall area of ​​the connecting slide 124. The connecting side wall is the side wall connecting the connecting wall 1221 and the connecting slide 124. The stability of the connecting box 121 connected to the cutting wheel body 13 on the feeding body during movement is improved.

[0073] The support part 11 is arranged on the workbench 2, and the support column is an aluminum profile, which is used to support the feeding assembly 12. It has strong stability, is not easy to deform, and is easy to shape and produce.

[0074] Furthermore, the support part 11 includes a support column, the support column has a hollow chamber, and the driving member is arranged in the hollow chamber. Reasonable space arrangement makes the structure compact and facilitates the processing of the crystal rod.

[0075] An opening communicating with the hollow chamber is formed on one side wall of the support column, and the feed guide rails 121 are fixedly installed on both sides of the opening, thereby improving the stability of the feed guide rails 121 and making the layout reasonable.

[0076] Furthermore, it also includes a passing wheel 4, which is arranged on the front side wall of the support part 11 and rotates relative to the support part 11. The routing of the diamond wire is transitioned to prevent the occurrence of cross knotting.

[0077] Furthermore, it also includes two dust covers 3 respectively arranged at the two ends of the feeding body. The dust covers 3 each have a fixed end and a movable end. The fixed end is connected to the support column. The movable end is connected to the feeding body; and the dust cover 3 can be extended and retracted with the reciprocating motion of the feeding body. The setting of the dust cover 3 has a good dustproof effect. At the same time, the dust cover 3 is connected to the connecting slide 124 of the feeding body, and the dust cover 3 can be driven to move during the movement, ensuring that the feeding body can always avoid dust from entering during the movement, thereby improving the cleanliness.

[0078] A cutting method based on a machine tool with truncation and external circle processing functions, the method comprising the following steps:

[0079] When the hardness of the crystal rod to be cut is relatively small, the feed assemblies 12 of the cutting head mechanisms 1 on both sides are started at the same time, and the feed assemblies 12 simultaneously drive the two cutting wheel bodies 13 to perform synchronous linear reciprocating motion along the support part 11. At this time, the cutting wheel body 13 rotates to drive the diamond wire on the cutting wheel body 13 to cut the crystal rod.

[0080] When the hardness of the crystal rod to be cut is relatively high, the feeding assembly 12 of the cutting head mechanism 1 on one side is started first, and the feeding assembly 12 drives the corresponding cutting wheel body 13 to perform linear reciprocating motion along the supporting portion 11 .

[0081] Next, the feeding assembly 12 of the cutting head mechanism 1 on the other side is started, and the feeding assembly 12 drives the corresponding cutting wheel body 13 to perform linear reciprocating motion along the supporting portion 11 .

[0082] Finally, the cutting wheel body 13 rotates to drive the diamond wire to cut the crystal rod at a swinging angle.

[0083] The present invention provides another cutting method based on a machine tool with truncation and external cylindrical processing functions, through which the feeding speed of the cutting head mechanism body 13 of the cutting head mechanism 1 on the left and right sides of the vertical feeding assembly 13 on the left and right sides can be asynchronous, so that it can control the swing of the diamond wire, thereby facilitating the cutting of the crystal rod of the superhard material, thereby improving the cutting ability and cutting quality. If the swing of the diamond wire is not required, the cutting wheel body 13 on the left and right sides can be synchronously lowered. Therefore, the cutting method is flexible and applicable to the cutting of crystal rods of different materials.

[0084] Among them, a horizontal feeding device 7 is arranged just above the center of the workbench 2, and the horizontal feeding device is used to place the crystal rod outer circle cutting rotary device 5 and the crystal rod cutting rotary device 6. The crystal rod outer circle cutting rotary device 5 and the crystal rod cutting rotary device 6 are respectively glued to the end faces of the crystal rod outer circle cutting rotary device 5 and the crystal rod cutting rotary device 6, so as to fix the crystal rod more firmly, so that the fixed crystal rod is used as the crystal rod to be cut, and the outer circle cutting rotation and cutting rotation are performed on the crystal rod outer circle cutting rotary device 5 and the crystal rod cutting rotary device 6 respectively, and the crystal rod can be driven to reciprocate in a horizontal direction, that is, in a forward and backward direction.

[0085] The crystal rod outer circle cutting rotating device is arranged on the horizontal feeding device 7 through the outer circle cutting rotating bracket 1, and is located below the split cutting head mechanism 1. The crystal rod outer circle cutting rotating device has a central rotating axis parallel to the diamond wire. The crystal rod outer circle cutting rotating device 5 can drive the second crystal rod 100 to be cut to perform reciprocating rotational motion along its central rotating axis.

[0086] Specifically, the outer circle cutting driving unit is fixedly arranged on the outer circle cutting rotary support 1 .

[0087] The outer circle cutting driving unit has a first rotating end surface, and the first rotating end surface is used for fixing and mounting the first and second crystal rods 100' to be circle cut.

[0088] The central axis of the first rotating end surface coincides with the central axis of the first and second crystal ingots 100 ′, and the central axis of the first and second crystal ingots 100 ′ are parallel to the diamond wires on the cutting wheels thereof.

[0089] The crystal rod outer circle cutting rotary device 5 is arranged on the horizontal feeding device 7 and is located below the split cutting head mechanism. The crystal rod outer circle cutting rotary device 5 has a central rotation axis parallel to the diamond wire. The crystal rod outer circle cutting rotary device 5 can drive the crystal rod to perform reciprocating rotational motion along its central rotation axis.

[0090] Further, see Figure 1 and Figure 3 As shown, the crystal rod outer circle cutting rotary device includes an outer circle cutting rotary control box 56 fixedly arranged on the outer circle cutting rotary support 1, an outer circle cutting rotary motor 51 arranged in the outer circle cutting rotary control box 56, and the outer circle cutting rotary motor 51 is connected to the toothed belt pulley group 53 through the outer circle cutting reducer 52, and the outer part of the toothed belt pulley group 53 is sleeved with a toothed belt 54. Specifically, the toothed belt pulley group 53 includes a first toothed belt pulley 531, and the first toothed belt pulley 531 is connected to the outer circle cutting reducer 52. The first toothed belt pulley 531 is driven by the second toothed belt pulley 532 through the toothed belt 54, and the second toothed belt pulley 532 is connected to the outer circle cutting rotary shaft 55.

[0091] Furthermore, the toothed belt 54 is sleeved on the outside of the toothed belt wheel set 53 , and the toothed belt 54 is meshed with the toothed belt wheel set 53 .

[0092] One end of the toothed belt pulley 53 is fixedly connected to an outer cylindrical cutting rotary shaft 55. The toothed belt 54 drives the outer cylindrical cutting rotary shaft 55 to rotate, and the first and second crystal rods 100' to be outer cylindrically cut are bonded to the end surface of the outer cylindrical cutting rotary shaft 55.

[0093] The first rotation end surface is an end surface of the outer circle cutting the rotation shaft 55 .

[0094] Specifically, the outer circle cutting rotary motor 51 rotates to drive the toothed belt pulley set 53 to rotate, and the toothed belt pulley set 53 rotates to drive the toothed belt 54, thereby driving the outer circle cutting rotary shaft 55 to rotate, so that the first and second crystal rods 100' to be outer circle cut rotate along their central rotary shafts. The outer circle cutting of the second crystal rod 100 to be outer circle cut is completed in cooperation with the split cutting head mechanism.

[0095] In this example, one end face of the first and second crystal rods 100' cut by the outer circle is glued to the end face of the outer circle cutting rotary shaft 55, and the vertical feeding assembly drives the cutting wheel body 13 to move downward, so that after the diamond wire reaches the center position of the first and second crystal rods 100' cut by the outer circle, the vertical feeding device stops feeding, and the center of the first and second crystal rods 100' cut by the outer circle is parallel to the diamond wire. The running wire management system starts to start, and the horizontal feeding device drives the first and second crystal rods 100' cut by the outer circle to start horizontal feeding. The diamond wire radially cuts into the first and second crystal rods 100' cut by the outer circle. After cutting to a predetermined depth, the horizontal feeding device stops. At this time, the crystal rod outer circle cutting device drives the first and second crystal rods 100' cut by the outer circle to perform a rotary feeding movement in the same direction, and finally realizes the outer circle processing of the crystal rod. The tension of the diamond wire during cutting is realized by the tension control device.

[0096] Furthermore, the diameter of the outer circle cutting rotary shaft 55 is smaller than the diameter of the first and second crystal rods 100 ′, so as to prevent the diamond wire from interfering with the outer circle cutting rotary shaft 55 during the circle cutting process.

[0097] Furthermore, the outer circle cutting rotary motor 51 is a servo motor.

[0098] Furthermore, the outer circle cutting rotary support 1 is a box-type structural member. The outer circle cutting rotary control box 56 is arranged at the top right end of the outer circle cutting rotary support 1 to provide a stable cutting platform.

[0099] Furthermore, it also includes a support plate 10, which is a triangular structural member, and is vertically arranged on the left and right sides of the outer circle cutting rotary support 1. The triangular structural member improves the stability of the outer circle cutting rotary support 1.

[0100] Among them, the crystal rod cutting rotating device 6 is arranged on the horizontal feeding device 7 and is located below the split cutting head mechanism. The crystal rod cutting rotating device 6 has a central rotating axis perpendicular to the diamond wire. The crystal rod cutting rotating device can drive the crystal rod to perform reciprocating rotating motion along its central rotating axis.

[0101] The crystal ingot cutting rotating device 6 has a second rotating end surface, and the second rotating end surface is used for fixing and installing the second crystal ingot 100 to be cut.

[0102] The central axis of the second rotating end face coincides with the central axis of the second crystal ingot 100 , and the central axis of the second crystal ingot 100 is perpendicular to the diamond wire on the cutting wheel thereof.

[0103] The truncation driving unit can drive the second crystal rod 100 to perform reciprocating rotational motion.

[0104] Further, see Figure 1 and Figure 4 As shown, the crystal rod cutting and rotating device 6 comprises a cutting and rotating control box 65 fixedly arranged on a cutting and rotating bracket 61, a cutting and rotating motor 62 arranged in the cutting and rotating control box 65, and the cutting and rotating motor 62 is connected to a cutting and rotating shaft 64 through a cutting reducer 63. The end surface of the cutting and rotating shaft 64 is used to install the crystal rod.

[0105] Specifically, the cutting rotary motor 62 rotates to drive the cutting rotary shaft 64 to rotate, and the cutting rotary shaft 64 rotates to drive the crystal rod to rotate along its central rotary shaft, and cooperates with the split cutting head mechanism to complete the cutting or slicing of the crystal rod.

[0106] In this embodiment, the single-wire diamond wire cutting machine is provided with a crystal rod cutting rotary device 6 and a crystal rod outer circle cutting rotary device 5, and the crystal rod cutting rotary device 6 and the crystal rod outer circle cutting rotary device 5 cooperate with the horizontal feeding device 7 and the cutting head mechanism to achieve cutting and cutting. In other words, the machine tool can both cut the crystal rod and cut the outer circle of the crystal rod, realizing multifunctional processing of the crystal rod, one machine for multiple uses, and the simple structure is convenient for installation and replacement, and thus convenient for subsequent maintenance and care work, thereby improving the efficiency of the cutting machine in processing the crystal rod.

[0107] Furthermore, in order to improve the installation stability of the crystal rod, the diameter of the cross-section rotation axis 32 is larger than the diameter of the crystal rod.

[0108] Furthermore, in order to facilitate the collection of the cut wafers, a slice receiving platform 8 is also included, and the slice receiving platform 8 is used to receive the cut wafers.

[0109] Further, see Figure 1 and Figure 3As shown, the horizontal feeding device 7 includes a horizontal feeding motor 71, a horizontal reducer 72, a horizontal guide rail 73, a horizontal adjustment screw 74 and a horizontal platform 75.

[0110] The horizontal feed motor 71 is arranged on the workbench 2, and the output end of the horizontal feed motor 71 is connected to the horizontal adjustment screw 74 through the horizontal reducer 72. The horizontal adjustment screw 74 has a screw nut that can convert rotational motion into linear motion, and the screw nut is connected to the horizontal table surface 75. The horizontal table surface 75 slides with the horizontal guide rail 73. The outer circle cutting rotary bracket 56 of the crystal ingot outer circle cutting rotary device 5 and the cutting rotary bracket 61 of the crystal ingot cutting rotary device 6 are both arranged on the horizontal table surface 75, and move forward and backward along the horizontal guide rail 73 with the horizontal table surface 75.

[0111] A machining method based on a machine tool with truncation and external circle machining functions, the method comprising the following steps:

[0112] When the second crystal rod 100 needs to be cut, the second crystal rod 100 is fixed on the crystal rod cutting rotating device 6, and the feed assemblies 12 of the cutting head mechanisms 1 on both sides are started. The feed assemblies 12 simultaneously drive the two cutting wheel bodies 13 to perform synchronous, vertical linear reciprocating motion along the support part 11.

[0113] Then, the crystal rod cutting rotating device 6 is started, and the crystal rod cutting rotating device 6 drives the second crystal rod 100 to rotate along its axis, so as to drive the diamond wire on the cutting wheel body 13 to cut the crystal rod until the diamond wire on the cutting wheel body 13 cuts the second crystal rod 100.

[0114] When the first and second crystal rods 100' need to be cut into outer circles, the first and second crystal rods 100' are fixed on the crystal rod outer circle cutting rotary device 5, and the feed components 12 of the cutting head mechanisms 1 on both sides are started. The feed components 12 simultaneously drive the two cutting wheel bodies 13 to perform synchronous, vertical linear reciprocating motion along the support portion 11 until the cutting wheel bodies 13 enter the position to be cut in the first and second crystal rods 100' radially along the first and second crystal rods 100', and then the feed components 12 stop working.

[0115] Then, the crystal rod outer circle cutting rotary device 5 is started to rotate to drive the diamond wire on the cutting wheel body 13 to perform outer circle cutting on the crystal rod.

[0116] In this embodiment, the single-wire diamond wire cutting machine is provided with a crystal rod cutting rotary device 6 and a crystal rod outer circle cutting rotary device 5, and the crystal rod cutting rotary device 6 and the crystal rod outer circle cutting rotary device 5 cooperate with the horizontal feeding device 7 and the cutting head mechanism to achieve cutting and cutting. In other words, the machine tool can both cut the crystal rod and cut the outer circle of the crystal rod, realizing multifunctional processing of the crystal rod, one machine for multiple uses, and the simple structure is convenient for installation and replacement, and thus convenient for subsequent maintenance and care work, thereby improving the efficiency of the cutting machine in processing the crystal rod.

[0117] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0118] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0119] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0120] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0121] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A machine tool with truncation and external cylindrical processing functions, characterized in that: It comprises a workbench (2), a horizontal feeding device (7) arranged on the workbench (2), a crystal rod outer circle cutting rotary device (5) and a crystal rod cutting rotary device (6) arranged on the horizontal feeding device (7), and two cutting head mechanisms (1) respectively arranged on both sides of the horizontal feeding device (7) and arranged symmetrically with each other; The crystal rod outer circle cutting rotary device (5) is capable of driving the first crystal rod (100') to perform reciprocating rotary motion; and the central axis of the first crystal rod (100') and the diamond wire on its cutting wheel are parallel to each other; The crystal rod cutting and rotating device (6) is capable of driving the second crystal rod (100) to perform reciprocating rotational motion; and the central axis of the second crystal rod (100) and the diamond wire on the cutting wheel thereof are perpendicular to each other; The horizontal feeding device (7) is capable of driving the crystal rod outer circle cutting rotary device (5) and the crystal rod truncation rotary device (6) to perform reciprocating linear motion in a horizontal direction relative to the workbench (2); The cutting head mechanism (1) comprises a feeding assembly (12) arranged on the workbench (2) and a cutting wheel body (13) arranged on the feeding assembly, wherein the feeding assembly (12) can drive the cutting wheel body (13) to move up and down so that the diamond wire between the two cutting wheel bodies (13) cuts the first crystal rod (100') or the second crystal rod (100) to be processed; The cutting head mechanism (1) further comprises a support portion (11), wherein the support portion (11) comprises a support column, and the support column has a hollow chamber; The feeding assembly (12) comprises a driving member, a feeding guide rail (121) and a feeding body; The driving member is connected to the feeding body; The feed guide rail (121) is fixedly mounted on one side of the support portion (11), the feed guide rail (121) is slidably connected to the feed body, and the driving member drives the feed body to slide along the feed guide rail (121); The driving member is disposed in the hollow chamber; A side wall of the support column is provided with an opening communicating with the hollow chamber, and the feed guide rail (121) is fixedly mounted on both sides of the opening; The feeding body comprises a connection box (122) having an opening and a mounting baffle (123) detachably arranged at the opening; The connection box (122) comprises a connection wall (1221) and a first side wall (1222), a second side wall (1223), a third side wall and a fourth side wall which are sequentially arranged around the connection wall (1221); A connecting slide (124) is fixedly mounted on one side of the connecting wall (1221), the connecting slide (124) is slidably connected to the feed guide rail (121), and the connecting slide (124) is connected to the driving member; The cutting wheel body (13) is rotatably mounted on the first side wall (1222); The horizontal feeding device (7) comprises a horizontal feeding motor (71), a horizontal guide rail (73), a horizontal adjustment screw (74) and a horizontal platform (75); The horizontal feed motor (71) is fixedly arranged on the workbench (2), and the output end of the horizontal feed motor (71) is connected to the horizontal adjustment screw (74) via a horizontal reducer (72); The horizontal guide rail (73) is fixedly mounted on the workbench (2); The horizontal adjustment screw (74) has a screw nut capable of converting rotational motion into linear motion, and the screw nut is connected to the horizontal platform (75); the horizontal platform (75) is slidably connected to the horizontal guide rail (73); The crystal rod outer circle cutting rotary device (5) comprises an outer circle cutting rotary support (57) arranged on the horizontal feeding device (7), an outer circle cutting rotary motor (31), a toothed belt wheel group (32) and a toothed belt (33); The outer circle cutting rotary motor (31) is connected to the toothed belt wheel set (32) via an outer circle cutting reducer (35); The toothed belt (33) is sleeved on the outside of the toothed belt wheel set (32), and the toothed belt (33) is meshed with the toothed belt wheel set (32); One end of the toothed belt wheel set (32) is fixedly connected to an outer circular cutting rotary shaft (34); The crystal rod truncation rotating device (6) comprises a truncation rotating bracket (61) arranged on the horizontal feeding device (7), a truncation rotating motor (62) and a truncation rotating shaft (64); The truncation rotary motor (62) is connected to the truncation rotary shaft (64) via a truncation reducer (63).

2. The machine tool with truncation and external circle processing functions as claimed in claim 1, characterized in that: The connection side wall area of ​​the connection wall (1221) is smaller than the connection side wall area of ​​the connection slide (124).

3. The machine tool with truncation and external circle processing functions as claimed in claim 1, characterized in that: The crystal rod outer circle cutting rotary device (5) has a first rotating end surface, and the first rotating end surface is used for fixing and mounting a first crystal rod (100') to be cut; The central axis of the first rotating end face coincides with the central axis of the first crystal rod (100'); The crystal ingot cutting and rotating device (6) has a second rotating end surface, and the second rotating end surface is used for fixing and mounting a second crystal ingot (100) to be cut; The central axis of the second rotating end face coincides with the central axis of the second crystal rod (100).

4. The machine tool with truncation and external circle processing functions as claimed in claim 3, characterized in that: The first rotating end face is the end face of the outer circle cutting rotating shaft (34).

5. The machine tool with truncation and external circle processing functions as claimed in claim 3, characterized in that: The second rotating end surface is an end surface of the truncated rotating shaft (64).

6. A machining method for a machine tool having truncation and external cylindrical machining functions based on any one of claims 1 to 5, characterized in that: The method comprises the following steps: When the second crystal ingot (100) needs to be cut, the second crystal ingot (100) is fixed on the crystal ingot cutting and rotating device (6), and the feed assemblies (12) of the cutting head mechanisms (1) on both sides are started, so that the feed assemblies (12) simultaneously drive the two cutting wheel bodies (13) to perform synchronous, vertical linear reciprocating motion along the support portion (11); Then, the crystal ingot cutting rotating device (6) is started, and the crystal ingot cutting rotating device (6) drives the second crystal ingot (100) to rotate along its axis, so as to drive the diamond wire on the cutting wheel body (13) to cut the crystal ingot, until the diamond wire on the cutting wheel body (13) cuts the second crystal ingot (100); When it is necessary to perform outer circle cutting on the first crystal ingot (100'), the first crystal ingot (100') is fixed on the crystal ingot outer circle cutting rotary device (5), and the feed components (12) of the cutting head mechanisms (1) on both sides are started, and the feed components (12) simultaneously drive the two cutting wheel bodies (13) to perform synchronous, vertical linear reciprocating motion along the support portion (11), until the cutting wheel bodies (13) enter the position to be cut in the first crystal ingot (100') along the radial direction of the first crystal ingot (100'), and then the feed components (12) are stopped; Then, the crystal rod outer circle cutting rotary device (5) is started to rotate to drive the diamond wire on the cutting wheel body (13) to perform outer circle cutting on the crystal rod.

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