Double-station adjustable cutting head type ring line cutting machine

Abstract

This invention relates to the field of photovoltaic and semiconductor processing technology, and particularly to a dual-station adjustable cutting head type loop wire cutting machine. Since at least one of the two cutting head devices is an adjustable cutting head, the adjustable cutting head includes a cutting head body, a tilting mechanism, and a lifting mechanism. The lifting mechanism drives the cutting head body to move up and down, so that the cutting head body cuts the radial cross-section of the silicon rod. After the cutting head body has finished cutting the radial cross-section of the silicon rod, the tilting mechanism drives the cutting head body on the lifting mechanism to swing in a vertical plane around the top center of the tilting mechanism, so that the cutting head body moves away from the radial cross-section of the silicon rod. This avoids wear on the diamond wire on the cutting head body and avoids contact and abrasion between the radial cross-section of the silicon rod and the diamond wire, while ensuring processing accuracy. Furthermore, the dual-station design of this application improves processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic and semiconductor processing technology, and in particular to a dual-station adjustable cutting head type loop cutting machine. Background Technology

[0002] Currently, in the processing of silicon rods, the silicon rods need to be placed horizontally on the processing platform, and then the cutting head of the silicon rod cutting machine cuts them from top to bottom along the radial cross-section of the silicon rod to form cut sample silicon wafers or silicon rods of the required length.

[0003] In the prior art, when the cutting head finishes cutting, the diamond wire is prone to contact and scrape against the radial cross-section of the silicon rod when the cutting head is lifted, which increases the wear of the diamond wire. Moreover, after repeated use, the perpendicularity of the cutting head to the radial cross-section of the silicon rod is incorrect and cannot be adjusted, resulting in processing errors during subsequent cutting. Furthermore, most cutting machines are single-station designs with low processing efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a dual-station adjustable cutting head type ring wire cutting machine, which solves the technical problems of low processing efficiency, easy contact and scraping between the cutting head and the radial cross-section of the silicon rod, which increases the wear of the diamond wire, and the fact that the perpendicularity of the cutting head to the radial cross-section of the silicon rod after repeated use cannot be adjusted, resulting in processing errors in subsequent cutting.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] This invention provides a dual-station adjustable cutting head type loop cutting machine, including two parallel silicon rod pushing devices and a cutting head assembly disposed between them. The cutting head assembly includes two cutting head devices, each corresponding one-to-one with one of the two silicon rod pushing devices. The cutting head devices are positioned above and in front of the silicon rod pushing devices. The silicon rod pushing devices abut and push the silicon rods to a preset position, after which the cutting head devices cut the silicon rods. The axial direction of the silicon rods is the same as the length direction of the silicon rod pushing devices. At least one cutting head device is adjustable. Adjustable cutting head; the adjustable cutting head includes a cutting head body, a tilting mechanism, and a lifting mechanism. The cutting surface of the cutting head body is used to cut the radial cross-section of the silicon rod. The cutting head body is mounted on the lifting mechanism, which drives the cutting head body to move up and down. The lifting mechanism is mounted on the tilting mechanism, which drives the lifting mechanism and the cutting head body thereon to swing left and right in a vertical plane around the center of the top of the tilting mechanism so that the cutting surface of the cutting head body moves away from or closer to the radial cross-section of the silicon rod. The left and right swing direction of the tilting mechanism is the axial direction of the silicon rod.

[0009] Preferably, the oscillation mechanism includes a mounting frame, a second connecting plate, a rotating shaft assembly, two sets of vertical feed assemblies, two oscillation assemblies, and at least one set of arc-shaped sliding assemblies. The rotating shaft assembly is located at the top center of the mounting frame, the two sets of vertical feed assemblies are respectively located on both sides of the lower end of the mounting frame, and the arc-shaped sliding assemblies are spaced apart on the mounting frame with the rotating shaft assembly as the center. The lifting mechanism is located on the side of the second connecting plate away from the mounting frame, the top center of the second connecting plate is rotatably connected to the rotating shaft assembly, and the sliding part of the arc-shaped sliding assembly is connected to the side of the second connecting plate closer to the mounting frame. The sliding parts of the two sets of vertical feed assemblies are correspondingly located on both sides of the second connecting plate and are driven by the oscillation assemblies to oscillate the lower end of the connecting plate with the rotating shaft assembly as the center.

[0010] Preferably, both oscillating components include an abutting roller unit and a wedge; the abutting roller unit includes a connecting seat and a second roller, the second roller is rotatably connected to the connecting seat, the axis of the second roller is parallel to the axis of the second roller, and the second roller rotates along its own axis; the connecting seats of the two oscillating components are detachably connected to the lower ends of the second connecting plate on both sides, and the second roller abuts against the wedge; the wedges of the two oscillating components are respectively connected to the sliding parts of the two sets of vertical feed components, and the inclined surfaces of the two wedges are parallel to each other; when the sliding parts of the two vertical feed components move in the same direction, the wedges cause the lower end of the second connecting plate to oscillate around the rotating shaft assembly as the center through the abutting roller unit.

[0011] Preferably, both sets of vertical feed components include a vertical slide and a second slider slidably connected to the vertical slide; the vertical slides of the two sets of vertical feed components are respectively disposed on both sides of the lower end of the mounting frame; the wedge is connected to the second slider, and the vertical slide drives the wedge to move up and down through the second slider.

[0012] Preferably, the arc-shaped sliding assembly includes a fixed block and a sliding block; one side of the fixed block is connected to the mounting bracket, and the other side of the fixed block has an arc-shaped groove, and the sliding block slides along the arc-shaped groove; the second connecting plate is slidably connected to the fixed block through the sliding block.

[0013] Preferably, the silicon rod pushing device includes a support assembly and a pushing mechanism; the support assembly has a through groove extending along its length, the cutting head body is located above the front side of the support assembly, and the swaying mechanism is located between the support assemblies of the two silicon rod pushing devices; the upper end of the support assembly is used to support the silicon rod, and the silicon rod is slidably connected to the support assembly along its length; the pushing mechanism is located in the through groove, and the pushing mechanism moves along the length of the support assembly to abut against and push the head cone of the silicon rod.

[0014] Preferably, the pushing mechanism includes a pushing seat, two sets of pushing components, and a driving component; the two sets of pushing components are disposed on the side of the pushing seat near the silicon rod, and the two sets of pushing components correspond to the two sides of the head cone of the silicon rod respectively; the connecting side of the pushing component is connected to the pushing seat, and the pushing side of the pushing component rotates along its axis to fit against the head cone of the silicon rod; the driving component drives the pushing seat to move along the length direction of the supporting component so that the pushing component abuts against the head cone of the silicon rod and pushes the silicon rod.

[0015] Preferably, the pushing assembly includes a first connecting plate, a roller pushing unit, a pushing block, and two limiting connecting posts; the first connecting plate is disposed on the side of the pushing seat near the silicon rod, and two horizontally arranged sliding grooves are formed on the first connecting plate; one end of each of the two limiting connecting posts is located in the two sliding grooves and slides along the sliding grooves, and the other end of the two limiting connecting posts is rotatably connected to the pushing block; the roller pushing unit is disposed on the first connecting plate and the rolling surface of the roller pushing unit abuts against the pushing block, and the rolling surface rotates along the vertical axis.

[0016] Preferably, the push-abutment assembly further includes at least one return spring; the return spring is arranged parallel to the limiting connecting post; one end of the return spring is connected to the first connecting plate, and the other end of the return spring is connected to the push-abutment block.

[0017] Preferably, the roller pushing unit includes a support, a hinge shaft, and at least one first roller; the first roller is sleeved on the hinge shaft, the hinge shaft is vertically oriented on the first connecting plate through the support, and the hinge shaft is rotatably connected to the support; the rolling surface of the first roller abuts against the push block; the side of the push block near the silicon rod is an inclined surface.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this invention are:

[0020] This invention discloses a dual-station adjustable cutting head type ring wire cutting machine. Since at least one of the two cutting head devices is adjustable, each adjustable cutting head includes a cutting head body, a tilting mechanism, and a lifting mechanism. The lifting mechanism drives the cutting head body to move up and down, allowing it to cut the radial cross-section of the silicon rod. After the cutting head body has finished cutting the radial cross-section of the silicon rod, the tilting mechanism causes the cutting head body on the lifting mechanism to swing about the center of its top edge in a vertical plane, moving the cutting head body away from the radial cross-section of the silicon rod. This avoids contact and friction between the radial cross-section of the silicon rod and the diamond wire, preventing wear on the diamond wire on the cutting head body. Furthermore, because the cutting head body can swing left and right, its perpendicularity to the silicon rod can be adjusted after multiple uses, thus ensuring processing accuracy. Additionally, the dual-station design of this application improves processing efficiency. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the dual-station adjustable cutting head type loop wire cutting machine provided by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the adjustable cutting head (showing a silicon rod);

[0023] Figure 3 This is a schematic diagram of the oscillating mechanism;

[0024] Figure 4 This is a schematic diagram of the oscillation mechanism (connecting plate not shown).

[0025] Figure 5 This is a structural diagram of the connecting plate and the abutment roller unit;

[0026] Figure 6 This is a cross-sectional view of the rotating shaft assembly;

[0027] Figure 7 for Figure 1 A schematic diagram of the silicon rod pushing device;

[0028] Figure 8 for Figure 7 A schematic diagram of the central pushing mechanism;

[0029] Figure 9 for Figure 8 Rear view;

[0030] Figure 10 for Figure 8 The right view;

[0031] Figure 11 Top view of the silicon rod pushing device (sensor assembly not shown).

[0032] Explanation of reference numerals in the attached figures:

[0033] 1: Silicon rod pushing device; 11: Support assembly; 111: Support base; 112: Support roller; 12: Pushing mechanism; 121: Pushing base; 122: Pushing assembly; 1221: First connecting plate; 1222: Roller pushing unit; 12221: Support; 12222: Hinge shaft; 12223: First roller; 1223: Pushing block; 1224: Limiting connecting column; 1225: Sliding groove; 1226: Return spring; 123: Drive assembly; 1231: First linear guide rail; 1232: Pushing slide; 1233: Pushing connecting frame; 124: Sensor assembly; 1241: Sensor unit; 1242: Drive component; 12421: Second linear guide rail; 12422: First slider; 13: Through groove;

[0034] 2: Adjustable cutting head; 21: Cutting head body; 211: Housing; 212: First guide roller; 213: Drive roller; 214: Tensioning roller; 215: Second guide roller; 22: Swing mechanism; 221: Mounting bracket; 222: Second connecting plate; 223: Rotary shaft assembly; 2231: Mounting seat; 2232: Bearing; 2233: Central shaft; 224: Vertical feed assembly; 2241: Vertical slide table; 2242: Second slider; 225: Swing assembly; 2251: Abutment roller unit; 22511: Connecting seat; 22512: Second roller; 2252: Wedge block; 226: Arc-shaped sliding assembly; 2261: Fixed block; 2262: Sliding block; 2263: Arc-shaped groove; 23: Lifting mechanism; 231: Lifting slide table; 232: Lifting slider;

[0035] 3: Silicon rod. Detailed Implementation

[0036] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 As shown, this embodiment provides a dual-station adjustable cutting head type loop cutting machine, which includes two parallel silicon rod pushing devices 1 and a cutting head assembly disposed between them. The cutting head assembly includes two cutting head devices, each corresponding one-to-one with one of the two silicon rod pushing devices 1. The cutting head devices are positioned above the front side of the silicon rod pushing devices 1. The silicon rod pushing devices 1 abut against and push the silicon rods 3 on them to a preset position, after which the cutting head devices cut the silicon rods 3. The silicon rods 3 are disposed on the silicon rod pushing devices 1, and the axial direction of the silicon rods 3 is the same as the length direction of the silicon rod pushing devices 1. At least one cutting head device is an adjustable cutting head 2. In this embodiment, both cutting head devices are adjustable cutting heads 2.

[0038] The adjustable cutting head 2 includes a cutting head body 21, a tilting mechanism 22, and a lifting mechanism 23. The cutting surface of the cutting head body 21 is used to cut the radial cross-section of the silicon rod 3. The cutting head body 21 is mounted on the lifting mechanism 23, which drives the cutting head body 21 to move up and down. The lifting mechanism 23 is mounted on the tilting mechanism 22, which drives the cutting head body 21 on the lifting mechanism 23 to swing left and right in a vertical plane around the center of the top of the tilting mechanism 22 so that the cutting surface of the cutting head body 21 moves away from or closer to the radial cross-section of the silicon rod 3. The left and right swing direction of the tilting mechanism 22 is the axial direction of the silicon rod 3.

[0039] The lifting mechanism 23 drives the cutting head body 21 to move up and down, so that the cutting head body 21 cuts the radial cross-section of the silicon rod 3. After the cutting head body 21 has finished cutting the radial cross-section of the silicon rod 3, the swing mechanism 22 drives the cutting head body 21 on the lifting mechanism 23 to swing in a vertical plane with the top center of the swing mechanism 22 as the center, so that the cutting head body 21 moves away from the radial cross-section of the silicon rod 3, avoiding contact and friction between the radial cross-section of the silicon rod 3 and the diamond wire, thereby avoiding wear on the diamond wire on the cutting head body 21. At the same time, since the cutting head body 21 can swing left and right, the perpendicularity of the cutting head body 21 relative to the silicon rod 3 can be adjusted after multiple uses, thereby ensuring processing accuracy. In addition, the dual-station design of this embodiment improves processing efficiency.

[0040] like Figure 2 As shown, the lifting mechanism 23 includes a sliding lifting slide 231 and a lifting slider 232. The lifting slide 231 is connected to the side of the second connecting plate 222 away from the mounting bracket 221. The lifting slide 231 is connected to the cutting head body 21 through the lifting slider 232 to drive the cutting head body 21 to move up and down.

[0041] like Figure 2 As shown, the cutting head body 21 includes a housing 211, multiple rolling wheels, and a diamond wire slidably connected to the rolling wheels. The housing 211 is connected to the lifting slider 232 of the lifting mechanism 23. The multiple rolling wheels rotate along their own axes, driving the diamond wire to rotate to form a cutting surface. The cutting surface is used to cut the radial cross-section of the silicon rod 3. A cavity for accommodating the silicon rod 3 is provided below the housing 211. In this embodiment, the multiple rolling wheels include a drive wheel 213, a tension wheel 214, a first guide wheel 212, and a second guide wheel 215.

[0042] like Figures 3-5As shown, the yaw mechanism 22 includes a mounting bracket 221, a second connecting plate 222, a rotating shaft assembly 223, two sets of vertical feed assemblies 224, two yaw assemblies 225, and at least one set of arc-shaped sliding assemblies 226. A rotating shaft assembly 223 is disposed at the top center of the mounting frame 221. Two sets of vertical feed assemblies 224 are respectively disposed on both sides of the lower end of the mounting frame 221. Arc-shaped sliding assemblies 226 are disposed on the mounting frame 221 at intervals with the rotating shaft assembly 223 as the center. A lifting mechanism 23 is disposed on the side of the second connecting plate 222 away from the mounting frame 221. The top center of the second connecting plate 222 is rotatably connected to the rotating shaft assembly 223. The sliding part of the arc-shaped sliding assembly 226 is connected to the side of the second connecting plate 222 close to the mounting frame 221. The sliding parts of the two sets of vertical feed assemblies 224 are correspondingly disposed on both sides of the second connecting plate 222 and are respectively driven by the swing assembly 225 to swing the lower end of the second connecting plate 222 with the rotating shaft assembly 223 as the center.

[0043] like Figure 4 and Figure 5 As shown, both oscillating components 225 include an abutting roller unit 2251 and a wedge block 2252. The abutting roller unit 2251 includes a connecting seat 22511 and a second roller 22512. The second roller 22512 is rotatably connected to the connecting seat 22511. The axis of the second roller 22512 is parallel to the axis of the second roller 22512 and rotates along its own axis. The connecting seat 22511 of the two oscillating components 225 is detachably connected to both sides of the lower end of the second connecting plate 222. The second roller 22512 abuts against the wedge block 2252. The wedges 2252 of the two oscillation components 225 are respectively connected to the second sliders 2242 of the two sets of vertical feed components 224, and the inclined surfaces of the two wedges 2252 are arranged in parallel. When the second sliders 2242 of the two vertical feed components 224 move in the same direction, the wedges 2252 on the second sliders 2242 cause the lower end of the second connecting plate 222 to oscillate with the rotating shaft assembly 223 as the center through the abutting roller unit 2251.

[0044] like Figure 3 and Figure 4 As shown, both sets of vertical feed assemblies 224 include a vertical slide 2241 and a second slider 2242, with the second slider 2242 slidably connected to the vertical slide 2241. The vertical slides 2241 of the two sets of vertical feed assemblies 224 are respectively disposed on both sides of the lower end of the mounting bracket 221. The wedge block 2252 is connected to the second slider 2242, and the vertical slide 2241 drives the wedge block 2252 to move up and down through the second slider 2242.

[0045] In this embodiment, to make the swing of the second connecting plate 222 more stable, the oscillation mechanism 22 includes two sets of arc-shaped sliding components 226. The two sets of arc-shaped sliding components 226 are arranged at intervals on the mounting frame 221, and the arc segments of the arc grooves 2263 on the two sets of arc-shaped sliding components 226 are all centered on the rotation center of the rotating shaft assembly 223. The radius of the arc groove 2263 in the arc-shaped sliding component 226 that is farther away from the rotating shaft assembly 223 is larger than the radius of the arc groove 2263 in the other arc-shaped sliding component 226 that is closer to the rotating shaft assembly 223.

[0046] like Figure 4 As shown, the arc-shaped sliding assembly 226 includes a fixed block 2261 and a sliding block 2262. One side of the fixed block 2261 is connected to the mounting bracket 221, and the other side of the fixed block 2261 is provided with an arc-shaped groove 2263. The sliding block 2262 slides along the arc-shaped groove 2263, and the second connecting plate 222 is slidably connected to the fixed block 2261 through the sliding block 2262.

[0047] like Figure 4 and Figure 6 As shown, the rotating shaft assembly 223 includes a mounting base 2231, a bearing 2232, and a central shaft 2233. The mounting base 2231 is detachably connected to the top center of the mounting bracket 221. The central shaft 2233 is rotatably connected to the mounting base 2231 through the bearing 2232. The axis of the central shaft 2233 is perpendicular to the axis of the mounting bracket 221.

[0048] like Figure 7 and Figure 11 As shown, the silicon rod pushing device 1 includes a support assembly 11 and a pushing mechanism 12. The support assembly 11 extends along its length, and a through groove 13 extending along its length is formed inside the support assembly 11. The cutting head body 21 is located above the front side of the support assembly 11, and the tilting mechanism 22 is located between the support assemblies 11 of the two silicon rod pushing devices 1. The upper end of the support assembly 11 is used to support the silicon rod 3, and the silicon rod 3 is slidably connected to the support assembly 11 along its length. The pushing mechanism 12 is located in the through groove 13, and the pushing mechanism 12 moves along the length of the support assembly 11 to abut and push the head cone of the silicon rod 3. Thus, by setting the pushing mechanism 12, the silicon rod 3 is cut, that is, the silicon rod 3 is pushed to the cutting position for cutting, which improves efficiency and reduces labor intensity.

[0049] like Figures 8-10As shown, the pushing mechanism 12 includes a pushing seat 121, two sets of pushing components 122, and a driving component 123. The two sets of pushing components 122 are disposed on the side of the pushing seat 121 near the silicon rod 3. The two sets of pushing components 122 correspond to the two sides of the head cone of the silicon rod 3, respectively. The connecting side of the pushing component 122 is connected to the pushing seat 121. The pushing side of the pushing component 122 rotates along its axis to fit against the head cone of the silicon rod 3. The driving component 123 drives the pushing seat 121 to move along the length direction of the support component 11 so that the pushing component 122 abuts against the head cone of the silicon rod 3 and pushes the silicon rod 3.

[0050] like Figure 8 and Figure 9 As shown, the push assembly 122 includes a first connecting plate 1221, a roller pushing unit 1222, a push block 1223, two limiting connecting posts 1224, and at least one return spring 1226. The first connecting plate 1221 is disposed on the side of the push base 121 near the silicon rod 3. Two horizontally arranged sliding grooves 1225 are formed on the first connecting plate 1221. One end of each of the two limiting connecting posts 1224 is located in the two sliding grooves 1225 and slides along the sliding grooves 1225. The other end of each limiting connecting post 1224 is rotatably connected to the push block 1223. The roller pushing unit 1222 is disposed on the first connecting plate 1221, and the rolling surface of the roller pushing unit 1222 abuts against the push block 1223. The rolling surface rotates along the vertical axis.

[0051] The roller pushing unit 1222 includes a support 12221, a hinge shaft 12222, and at least one first roller 12223. The first roller 12223 is sleeved on the hinge shaft 12222. The hinge shaft 12222 is vertically oriented on the first connecting plate 1221 through the support 12221. The hinge shaft 12222 is rotatably connected to the support 12221. The rolling surface of the first roller 12223 abuts against the push block 1223. The side of the push block 1223 near the silicon rod 3 is an inclined surface.

[0052] The reset spring 1226 is arranged parallel to the limiting connecting post 1224. One end of the reset spring 1226 is connected to the first connecting plate 1221, and the other end of the reset spring 1226 is connected to the push block 1223.

[0053] In this embodiment, each push assembly 122 includes two return springs 1226, and each push assembly 122's roller pushing unit 1222 includes two first rollers 12223. The two limiting connecting rods in the two push assemblies 122 are both located on the inner side, and the two limiting connecting rods are arranged parallel to each other in the vertical direction, while the return springs 1226 are located on the outer side.

[0054] like Figure 8 and Figure 11As shown, the drive assembly 123 includes a first linear guide rail 1231, a push slide 1232, and a push connecting frame 1233. The first linear guide rail 1231 is located in the through groove 13 of the support assembly 11 and is arranged along the length direction of the support assembly 11. The push slide 1232 is slidably connected to the first linear guide rail 1231 and is connected to the push seat 121 through the push connecting frame 1233.

[0055] like Figure 8 and Figure 9 As shown, the pushing mechanism 12 also includes a sensor assembly 124, which includes a connected sensor unit 1241 and a drive member 1242. The pushing base 121 has a through hole along the length of the support assembly 11. The drive member 1242 is located on the side of the pushing connecting frame 1233 away from the silicon rod 3. The drive member 1242 drives the sensor unit 1241 to move within the through hole to abut the apex of the head cone. The sensor unit 1241 is a position sensor capable of detecting the position of the head cone. The drive member 1242 includes a second linear guide rail 12421 and a first slider 12422. The second linear guide rail 12421 is mounted on the pushing connecting frame 1233, and the first slider 12422 is slidably connected to the second linear guide rail 12421. The sensor unit 1241 is slidably connected to the second linear guide rail 12421 via the first slider 12422.

[0056] like Figure 7 As shown, the support assembly 11 includes a support base 111 and multiple support rollers 112. The support base 111 has a concave cross-section, and the upper end of the concave structure opens to form a through groove 13. The multiple support rollers 112 are respectively disposed on opposite sides of the upper end of the concave structure and the support rollers 112 rotate along their own axes. The silicon rod 3 is slidably connected to the multiple support rollers 112.

[0057] Working principle:

[0058] Before cutting the silicon rod 3, the silicon rod 3 is placed on the support assembly 11 of the silicon rod pushing device 1, with the head cone of the silicon rod 3 facing backward, away from the cutting head 2 of the cutter. When the drive assembly 123 drives the push seat 121 to move along the length direction of the support assembly 11 towards the head cone of the silicon rod 3, after the push block 1223 contacts the head cone of the silicon rod 3, the push slide 1232 continues to advance along the first linear guide rail 1231. The first roller 12223 on the roller pushing unit 1222 rotates, which pushes the push block 1223 that is in contact with its rolling surface. The limiting connecting post 1224 connected to the push block 1223 slides along the sliding groove 1225. At this time, the push block 1223 deflects, so that the inclined surface of the push block 1223 contacts the inclined surface of the head cone of the silicon rod 3. Then, the drive assembly 123 continues to drive the push seat 121 to move along the length direction of the support assembly 11 until the front end of the silicon rod 3 hits the limit stop and stops.

[0059] The motor torque of the push-slide table 1232 in the drive assembly 123 increases. After reaching a certain set value, the motor in the drive assembly 123 stops applying force and simultaneously feeds back to the sensor assembly 124. The first slider 12422 in the drive component 1242 drives the sensor unit 1241 forward. The sensor unit 1241 stops when it touches the apex of the head cone. Since the length of the silicon rod 3, the length of the front cone, and the length of the head cone are known in advance, the sensor unit 1241 records the current reference position coordinates of the silicon rod 3 and feeds them back to the system.

[0060] Then, the limiting block in front of the silicon rod 3 is removed, the control system calculates the distance from the silicon rod 3 to the cutting head 2, and then the drive assembly 123 drives the push seat 121 to continue pushing the silicon rod 3 to the cutting position and stop, thus completing the tool setting.

[0061] After the tool setting is completed, multiple rollers on the cutting head body 21 rotate along their own axis, causing the diamond wire to rotate to form a cutting surface. The cutting surface is used to cut the radial cross-section of the silicon rod 3. The lifting slide 231 drives the cutting head body 21 to move up and down through the lifting slider 232, so that the cutting head body 21 cuts the radial cross-section of the silicon rod 3.

[0062] After the cutting head body 21 has finished cutting the radial cross-section of the silicon rod 3, the second slider 2242 of the two vertical feed components 224 drives the wedge 2252 on it to move in the same direction. The second roller 22512 in the abutment roller unit 2251 rolls along the surface of the wedge 2252, causing the lower end of the second connecting plate 222 to swing about the rotating shaft assembly 223. By setting two sets of arc-shaped sliding components 226, the swing of the second connecting plate 222 is made more stable. Due to the swing of the second connecting plate 222, the lifting mechanism 23 on it drives the cutting head body 21 to swing, so that the cutting head body 21 is away from the radial cross-section of the silicon rod 3, avoiding the wear of the diamond wire on the cutting head body 21 and avoiding the contact and scratching between the radial cross-section of the silicon rod 3 and the diamond wire.

[0063] When the cutting surface of the cutting head body 21 is no longer vertical after multiple uses, the cutting head body 21 can be adjusted by the tilting mechanism 22 to ensure the perpendicularity of the cutting head body 21 relative to the silicon rod 3, thereby ensuring the processing accuracy.

[0064] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dual-station adjustable cutting head type loop wire cutting machine, characterized in that, It includes two parallel silicon rod pushing devices (1) and a cutting head assembly disposed between them; The cutting head assembly includes two cutting head devices, and the two cutting head devices correspond one-to-one with the two sets of silicon rod pushing devices (1). The cutting head devices are correspondingly arranged above the front side of the silicon rod pushing device (1). The silicon rod pushing device (1) is used to abut and push the silicon rod (3) on it to a preset position. Then, the cutting head device is used to cut the silicon rod (3). The axial direction of the silicon rod (3) is the same as the length direction of the silicon rod pushing device (1). At least one of the cutting head devices is an adjustable cutting head (2). The adjustable cutting head (2) includes a cutting head body (21), a tilting mechanism (22) and a lifting mechanism (23). The cutting surface of the cutting head body (21) is used to cut the radial cross-section of the silicon rod (3). The cutting head body (21) is mounted on the lifting mechanism (23), and the lifting mechanism (23) drives the cutting head body (21) to move up and down; The lifting mechanism (23) is mounted on the sway mechanism (22). The sway mechanism (22) drives the lifting mechanism (23) and the cutting head body (21) thereon to swing left and right in the vertical plane with the top center of the sway mechanism (22) as the center, so that the cutting surface of the cutting head body (21) moves away from or close to the radial cross section of the silicon rod (3). The left and right swing direction of the sway mechanism (22) is the axial direction of the silicon rod (3); the sway mechanism (22) includes a mounting bracket (221), a second connecting plate (222), a rotating shaft assembly (223), two sets of vertical feed assemblies (224), two sway assemblies (225) and at least one set of arc-shaped sliding assemblies (226). The rotating shaft assembly (223) is located at the top center of the mounting frame (221), the two sets of vertical feed assemblies (224) are respectively located on both sides of the lower end of the mounting frame (221), and the arc-shaped sliding assembly (226) is arranged on the mounting frame (221) at intervals with the rotating shaft assembly (223) as the center. The lifting mechanism (23) is located on the side of the second connecting plate (222) away from the mounting bracket (221). The top center of the second connecting plate (222) is rotatably connected to the rotating shaft assembly (223). The sliding part of the arc-shaped sliding assembly (226) is connected to the side of the second connecting plate (222) close to the mounting bracket (221). The sliding parts of the two sets of vertical feed components (224) are respectively arranged on both sides of the second connecting plate (222) and are driven by the swaying component (225) to sway the lower end of the second connecting plate (222) around the rotating shaft component (223); Both of the aforementioned yaw components (225) include an abutment roller unit (2251) and a wedge (2252); The abutting roller unit (2251) includes a connecting seat (22511) and a second roller (22512). The second roller (22512) is rotatably connected to the connecting seat (22511). The axis of the second roller (22512) is arranged parallel to the axis of the roller, and the second roller (22512) rotates along its own axis. The connecting seats (22511) of the two yaw components (225) are detachably connected to the lower ends of the second connecting plate (222), and the second roller (22512) abuts against the wedge (2252); The wedges (2252) of the two yaw components (225) are respectively connected to the sliding parts of the two sets of vertical feed components (224), and the inclined surfaces of the two wedges (2252) are arranged in parallel. When the sliding portions of the two vertical feed assemblies (224) move in the same direction, the wedge (2252) causes the lower end of the second connecting plate (222) to deflect around the rotating shaft assembly (223) via the abutment roller unit (2251).

2. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 1, characterized in that: Both sets of vertical feed assemblies (224) include a vertical slide (2241) and a second slider (2242) slidably connected to the vertical slide (2241). The vertical slides (2241) of the two sets of vertical feed assemblies (224) are respectively disposed on both sides of the lower end of the mounting frame (221); The wedge (2252) is connected to the second slider (2242), and the vertical slide (2241) drives the wedge (2252) to move up and down through the second slider (2242).

3. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 1, characterized in that: The arc-shaped sliding component (226) includes a fixed block (2261) and a sliding block (2262); One side of the fixing block (2261) is connected to the mounting bracket (221), and the other side of the fixing block (2261) is provided with an arc-shaped groove (2263). The sliding block (2262) slides along the arc-shaped groove (2263). The second connecting plate (222) is slidably connected to the fixed block (2261) via the sliding block (2262).

4. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 1, characterized in that, The silicon rod pushing device (1) includes a support assembly (11) and a pushing mechanism (12). The support assembly (11) has a through slot (13) extending along its length direction. The cutting head body (21) is located above the front side of the support assembly (11). The swaying mechanism (22) is located between the support assemblies (11) of the two silicon rod pushing devices (1). The upper end of the support component (11) is used to support the silicon rod (3), and the silicon rod (3) is slidably connected to the support component (11) along its length direction; The pushing mechanism (12) is located in the through groove (13), and the pushing mechanism (12) moves along the length direction of the support assembly (11) to abut and push the head cone of the silicon rod (3).

5. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 4, characterized in that: The pushing mechanism (12) includes a pushing seat (121), two sets of pushing components (122) and a driving component (123). The two sets of pushing components (122) are disposed on the side of the pushing base (121) close to the silicon rod (3), and the two sets of pushing components (122) correspond to the two sides of the head cone of the silicon rod (3); The connecting side of the push assembly (122) is connected to the push base (121), and the push side of the push assembly (122) rotates along its axis to fit the head cone of the silicon rod (3); The drive assembly (123) drives the push base (121) to move along the length direction of the support assembly (11) so that the push assembly (122) abuts against the head cone of the silicon rod (3) and pushes the silicon rod (3).

6. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 5, characterized in that: The pushing assembly (122) includes a first connecting plate (1221), a roller pushing unit (1222), a pushing block (1223), and two limiting connecting posts (1224). The first connecting plate (1221) is disposed on the side of the push base (121) close to the silicon rod (3), and two horizontally arranged sliding grooves (1225) are provided on the first connecting plate (1221). One end of each of the two limiting connecting posts (1224) is located in one of the two sliding grooves (1225) and slides along the sliding grooves (1225); the other end of each of the two limiting connecting posts (1224) is rotatably connected to the push block (1223). The roller pushing unit (1222) is disposed on the first connecting plate (1221) and the rolling surface of the roller pushing unit (1222) abuts against the push block (1223), and the rolling surface rotates along the vertical axis.

7. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 6, characterized in that: The push assembly (122) also includes at least one return spring (1226). The return spring (1226) is arranged parallel to the limiting connecting post (1224); One end of the reset spring (1226) is connected to the first connecting plate (1221), and the other end of the reset spring (1226) is connected to the push block (1223).

8. The dual-station adjustable cutting head type loop wire cutting machine as described in claim 6, characterized in that: The roller pushing unit (1222) includes a support (12221), a hinge shaft (12222), and at least one first roller (12223). The first roller (12223) is sleeved on the hinge shaft (12222), and the hinge shaft (12222) is vertically oriented on the first connecting plate (1221) through the support (12221). The hinge shaft (12222) is rotatably connected to the support (12221). The rolling surface of the first roller (12223) abuts against the push block (1223); The side of the push block (1223) closest to the silicon rod (3) is inclined.

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