Grinding machine special for crystal appearance processing

Abstract

The invention relates to the technical field of grinding machining, in particular to a special grinding machine for crystal appearance machining, which comprises a transverse clamping assembly, a longitudinal clamping assembly and a grinding belt, the transverse clamping assembly and the longitudinal clamping assembly are arranged perpendicular to each other, and the intersection of the transverse clamping assembly and the longitudinal clamping assembly is fixedly connected through a fixing seat. And through mutual cooperation of the transverse clamping assembly and the longitudinal clamping assembly, the crystal can be positioned all the time in the crystal polishing process, repeated positioning is not needed, and the positioning precision during machining is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding processing, in particular to a special grinding machine for crystal shape processing. Background Art

[0002] Crystal diamond is a general term for simulated diamonds. Its main component is crystal glass. It is a kind of jewelry accessory made by cutting artificial crystal glass into diamond facets. This material is very popular among people because it is more economical and has the dazzling visual effect of diamond. It is generally used in mid-range jewelry design.

[0003] The processing procedures of crystal diamonds are roughly the same during production, namely material selection, design, cutting and shaping, rough grinding, fine grinding, fine grinding and polishing. Among them, grinding is a necessary step in the production of crystal products; existing grinding includes crystal grinding machines and manual grinding with clamps.

[0004] Both manual grinding and grinding machine grinding fix the crystal to the supporting part by bonding. However, since crystal is usually a symmetrical structure, the crystal needs to be disassembled after processing one end, and then the other end of the crystal needs to be bonded to the supporting part. There is a positioning error in this process, resulting in low processing accuracy of the crystal surface, which does not meet the design requirements.

[0005] Therefore need a kind of special grinding machine for crystal shape processing, to solve the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems and provide a special grinding machine for crystal shape processing, which can achieve precise positioning and improve grinding accuracy.

[0007] Provided is a special grinding machine for crystal shape processing, comprising a transverse supporting component, a longitudinal supporting component and a grinding belt, wherein the transverse supporting component and the longitudinal supporting component are arranged perpendicular to each other, and the intersection of the transverse supporting component and the longitudinal supporting component is fixedly connected by a fixing seat;

[0008] The transverse supporting assembly includes two symmetrically arranged transverse guide shells, a transverse partition is arranged between the two transverse guide shells, an arc plate is slidably arranged in each transverse guide shell, a cylinder is arranged at one end of the two arc plates away from each other, a quadrangular prism is slidably arranged in each cylinder, a semicircular plate is rotatably arranged at one end of the two quadrangular prisms close to each other, and a semicircular clamping block is rotatably arranged in the two semicircular plates;

[0009] The longitudinal supporting assembly includes two symmetrically arranged longitudinal guide shells, which are bolted and spaced apart by a longitudinal partition. Two arc plates are slidably arranged in each longitudinal guide shell, two cylinders are arranged at the ends of the two arc plates away from each other, each of the two cylinders is movably connected to two quadrangular prisms, and triangular slots are arranged at the ends of the two quadrangular prisms close to each other.

[0010] Furthermore, each side of the transverse guide shell is threadedly connected to a locking bolt, an arc plate is penetrated by a limiting arc groove, a limiting rod is arranged in the transverse guide shell, the limiting rod slides in the limiting arc groove, and a scale is arranged on the side of the arc plate.

[0011] Furthermore, a rectangular groove is provided at the center of each cylinder, a quadrangular prism is slidably connected in each rectangular groove, mounting circular grooves are provided at the ends of two quadrangular prisms close to each other, round blocks are rotatably provided in the mounting circular grooves, and the ends of the two round blocks close to each other are fixedly connected to semicircular plates, flanges are provided at both ends of the semicircular plates, a semicircular clamping block is rotatably connected between the two flanges, and a supporting groove is provided in the semicircular clamping block.

[0012] Furthermore, one end of the quadrangular prism that is away from each other is threadedly connected to a screw rod, a retaining ring is arranged in the middle of the screw rod, a connecting portion is arranged on the side of the retaining ring, a threaded portion is arranged on the side of the connecting portion, and an operating portion is arranged on the side of the threaded portion.

[0013] The threaded portion 1 is threadedly connected to a nut 1, and the side surface of the nut 1 close to the retaining ring 1 abuts against a gasket 1.

[0014] Furthermore, each side surface of the longitudinal guide shell is threadedly connected to a second locking bolt, and the second locking bolt abuts against the side surface of the second arc plate;

[0015] Each longitudinal guide shell is provided with a second limiting rod, which is slidably arranged in a second limiting arc groove of the second arc plate;

[0016] A rotating column is rotatably connected in each cylinder. An end ring is arranged at one end of the two cylinders that are close to each other, and a fixing cover is connected by bolts at one end of the two cylinders that are far away from each other.

[0017] Furthermore, a scale three arranged in a circular ring is arranged on the side of the fixed cover, a stop column is fixedly arranged on the side of the fixed cover, a mounting cylinder is arranged on the side of the middle part of the fixed cover, a rotating wheel is rotatably sleeved on the outer side of the mounting cylinder, the outer side of the rotating wheel is threadedly connected to the rotating wheel, an inclined plane one is arranged on the inner end of the rotating wheel, an inclined plane two is arranged on the end of the rotating wheel, and a plurality of axially arranged extrusion grooves are evenly distributed in the circumferential direction on the end where the inclined plane two is located;

[0018] One end of the rotating wheel away from the fixed cover is bolted to the indicator ring, a mounting seat is arranged on the side of the indicator ring, an indicator needle is fixedly arranged in the mounting seat, and the end of the indicator needle abuts against the side of scale three.

[0019] Furthermore, a driving ring is fixedly arranged at one end of the two rotating columns away from each other, a positioning groove is arranged on the outer side of the driving ring, a driving groove is arranged on the inner side of the driving ring, a positioning tooth is clamped in the positioning groove, the positioning tooth is slidably arranged in the positioning seat, and the positioning seat is fixedly connected to the second inner wall of the cylinder;

[0020] A one-way driving component is clamped in the driving groove, and the one-way driving component is bolted to the outer side wall of the driving cylinder.

[0021] Furthermore, the one-way drive assembly includes a mounting seat, the mounting seat is bolted to the outer wall of the drive cylinder near one end of the rotating column, the mounting seat is hinged to a clamping block, and a leaf spring is arranged between the mounting seat and the clamping block;

[0022] The driving cylinder is rotatably sleeved in the installation cylinder, and the driving column is fixedly arranged on the outer side wall of one end of the driving cylinder away from the rotating column. The side surface of the installation seat abuts against the limiting ring, and the limiting ring abuts against the side surface of the fixed cover.

[0023] Furthermore, a second rectangular groove is provided at one end of the rotating column away from the driving ring, a second quadrangular prism is slidably connected in the second rectangular groove, and a triangular slot is provided at one end of the second quadrangular prism away from the rotating column;

[0024] The other end of the second quadrangular prism is threadedly connected to the second screw rod, the second screw rod is provided with a second connection part, the side surface of the second connection part is provided with a second threaded part, the side surface of the second threaded part is provided with a second operating part, the external thread of the second threaded part is sleeved with the second nut, and the side surface of the second nut is abutted against the second gasket.

[0025] The beneficial effects of the present invention are as follows: through the cooperation between the transverse supporting assembly and the longitudinal supporting assembly, the crystal can be always positioned during the crystal polishing process without repeated positioning, thereby improving the positioning accuracy during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiment.The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting the invention.

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention from another viewing angle;

[0029] Figure 3 This is a schematic diagram of the partial explosion structure of the lateral support assembly of the present invention;

[0030] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at B in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the longitudinal supporting assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of the local explosion structure of two places of the cylinder of the present invention;

[0033] Figure 7 It is a schematic diagram of the local explosion structure at the rotating column of the present invention;

[0034] Figure 8 This is a schematic diagram of the local explosion structure at the rotating wheel of the present invention;

[0035] Fig. 9 This is a schematic diagram of the local explosion structure of the driving cylinder of the present invention;

[0036] Fig.10 It is a schematic diagram of the structure of the one-way drive assembly of the present invention;

[0037] Fig.11 It is another schematic diagram of the partial explosion structure at the rotating column of the present invention;

[0038] Fig.12 This is a schematic diagram of the structure of the first working state of the present invention;

[0039] Fig.13 This is a schematic diagram of the structure of the second working state of the present invention.

[0040] Reference numerals:

[0041] 1 lateral support assembly, 11 fixed seat, 12 crystal, 13 lateral partition, 14 lateral guide shell, 141 arc plate one, 142 limit arc groove one, 143 locking bolt one, 144 limit rod one, 145 scale one, 146 cylinder one, 147 rectangular groove one; 15 quadrangular prism one, 151 mounting circular groove, 16 screw one, 161 retaining ring one, 162 connecting part one, 163 threaded part one, 164 operating part one, 165 nut one, 166 gasket one; 17 round block, 171 semicircular plate, 172 fixed end cover, 173 flange, 18 semicircular clamping block, 181 support groove;

[0042] 2 longitudinal support assembly, 21 longitudinal guide shell, 211 locking bolt 2, 212 limiting rod 2, 213 longitudinal partition, 22 arc plate 2, 221 limiting arc groove 2, 222 scale 2, 223 cylinder 2, 224 end ring, 23 fixed cover, 231 scale 3, 232 blocking column, 233 installation cylinder, 234 rotating wheel, 2341 inclined plane 1, 235 rotating wheel, 2351 extrusion groove, 2352 inclined plane 2, 236 indicator ring, 2361 indicator rod, 237 indicator needle,

[0043] 24 rotating column, 241 driving ring, 2411 positioning groove, 2412 driving groove, 242 rectangular groove II; 25 positioning seat, 251 positioning tooth;

[0044] 26 driving cylinder, 261 driving column, 262 limiting ring, 263 one-way driving assembly, 2631 mounting seat, 2632 leaf spring, 2633 card block,

[0045] 27 quadrangular prism two, 271 triangular slot; 28 screw two, 281 connecting part two, 282 threaded part two, 283 operating part two, 29 nut two, 291 gasket two;

[0046] 3. Sanding belt. DETAILED DESCRIPTION

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-Figure 13 As shown, a special grinding machine for crystal shape processing includes a transverse supporting component 1, a longitudinal supporting component 2 and a grinding belt 3. The grinding belt 3 is driven to rotate by a pulley, which belongs to the prior art and will not be described in detail here. The transverse supporting component 1 and the longitudinal supporting component 2 are arranged perpendicular to each other, and the intersection of the transverse supporting component 1 and the longitudinal supporting component 2 is fixedly connected by a fixed seat 11. The fixed seat 11 fixes the transverse supporting component 1 and the longitudinal supporting component 2 on a moving structure, which is used to control the transverse supporting component 1 and the longitudinal supporting component 2 to approach and move away from the grinding belt 3, and move along the grinding belt 3 to achieve grinding of the crystal 12. The moving structure belongs to the relatively commonly used prior art and will not be described in detail here.

[0048] The lateral supporting component 1 includes two symmetrically arranged lateral guide shells 14, a lateral partition 13 is arranged between the two lateral guide shells 14, an arc plate 141 is slidably arranged in each lateral guide shell 14, the two arc plates 141 are symmetrically arranged in the center, a cylinder 146 is arranged at the ends of the two arc plates 141 away from each other, a quadrangular prism 15 is slidably arranged in each cylinder 146, a semicircular plate 171 is rotatably arranged at the ends of the two quadrangular prisms 15 close to each other, and a semicircular clamping block 18 is rotatably arranged in the two semicircular plates 171. The two semicircular clamping blocks 18 are used to support, fix and position the middle part of the crystal 12.

[0049] The longitudinal supporting component 2 includes two symmetrically arranged longitudinal guide shells 21, the two longitudinal guide shells 21 are bolted and a longitudinal partition 213 is arranged in the middle, an arc plate 22 is slidably arranged in each longitudinal guide shell 21, a cylinder 223 is arranged at one end of the two arc plates 22 away from each other, each cylinder 223 is movably connected to a quadrangular prism 27, and a triangular groove 271 is arranged at one end of the two quadrangular prisms 27 close to each other, and the two triangular grooves 271 are used to clamp the two ends of the crystal 12 to achieve positioning and fixation of the crystal 12.

[0050] For further information, see Figure 2Each side of the transverse guide shell 14 is threadedly connected with a locking bolt 143, and the locking bolt 143 abuts against the side of the arc plate 141 to lock and fix the arc plate 141. The arc plate 141 is penetrated by a limiting arc groove 142, and a limiting rod 144 is set in the transverse guide shell 14. The limiting rod 144 slides in the limiting arc groove 142, and the limiting rod 144 limits the arc plate 141 to prevent the arc plate 141 from detaching from the transverse guide shell 14. A scale 145 is set on the side of the arc plate 141, and the central angle of the arc plate 141 is 90 degrees. The scale 145 is used to indicate the angle between the quadrangular prism 15 and the grinding belt 3.

[0051] For further information, see Figure 3 and Figure 4 A rectangular groove 147 is provided at the center of each cylinder 146, and a quadrangular column 15 is slidably connected in each rectangular groove 147. A mounting circular groove 151 is provided at one end of the two quadrangular columns 15 close to each other. A round block 17 is rotatably provided in the mounting circular groove 151, and the side of the round block 17 abuts against a fixed end cover 172. The fixed end cover 172 is bolted to the end of the quadrangular column 15, and the fixed end cover 172 is used to limit the round block 17 in the mounting circular groove 151. The ends of the two round blocks 17 close to each other are fixedly connected to a semicircular plate 171, and the axis of the semicircular plate 171 is perpendicular to the axis of the quadrangular column 15. Flanges 173 are provided at both ends of the semicircular plate 171, and a semicircular clamping block 18 is rotatably connected between the two flanges 173. The diameters of the two semicircular clamping blocks 18 are the same, and a support groove 181 is provided in the semicircular clamping block 18. The shape of the support groove 181 is the same as the shape in the crystal 12. After the two semicircular clamping blocks 18 are supported and docked, the two support grooves 181 can fix and limit the crystal 12. The shape of the support groove 181 is set according to the shape of the middle part of the crystal 12, and is used to achieve the fit and support of the crystal 12.

[0052] For further information, see Figure 3 and Figure 4 One end of the quadrangular prism 15 away from each other is threadedly connected to a screw rod 16, a retaining ring 161 is arranged in the middle of the screw rod 16, a connecting portion 162 is arranged on the side of the retaining ring 161, a threaded portion 163 is arranged on the side of the connecting portion 162, an operating portion 164 is arranged on the side of the threaded portion 163, and the operating portion 164 is in the shape of a hexagonal prism. The operating portion 164 can also be designed to be other shapes for connection with a wrench, and the wrench drives the screw rod 16 to rotate through the operating portion 164.

[0053] The threaded part 163 is threadedly connected with a nut 165, and the side of the nut 165 close to the retaining ring 161 abuts against a gasket 166, and the gasket 166 abuts against the side of the connecting part 162. Through the restriction of the gasket 166 and the retaining ring 161, the screw 16 is rotatably connected to the cylinder 146 to achieve axial fixation between the screw 16 and the cylinder 146. When the screw 16 rotates, it drives the quadrangular prism 15 to move, and the quadrangular prism 15 drives the two semicircular clamping blocks 18 to approach each other, so as to achieve the support and fixation of the crystal 12.

[0054] For further information, see Figure 5 and Figure 6 Each side of the longitudinal guide shell 21 is threadedly connected to a locking bolt 211, and the locking bolt 211 abuts against the side of the arc plate 22. The locking bolt 211 squeezes the side of the arc plate 22 to achieve relative locking between the arc plate 22 and the longitudinal guide shell 21.

[0055] A second limiting rod 212 is provided on each longitudinal guide shell 21, and the second limiting rod 212 is slidably set in the second limiting arc groove 221 of the second arc plate 22. The second limiting rod 212 limits the sliding of the second arc plate 22 in the longitudinal guide shell 21 to prevent the second arc plate 22 from detaching from the longitudinal guide shell 21.

[0056] Each cylinder 223 is rotatably connected to a rotating column 24. An end ring 224 is set at the end where the two cylinders 223 are close to each other. The ends where the two cylinders 223 are far away from each other are bolted to a fixed cover 23. The fixed cover 23 and the end ring 224 confine the rotating column 24 in the cylinder 223, thereby realizing a relative rotation connection between the cylinder 223 and the rotating column 24.

[0057] For further information, see Figure 7 and Figure 8A circular scale three 231 is arranged on the side of the fixed cover 23, a blocking column 232 is fixedly arranged on the side of the fixed cover 23, a mounting cylinder 233 is arranged on the side of the middle part of the fixed cover 23, a rotating wheel 235 is rotatably sleeved on the outer side of the mounting cylinder 233, and the outer side of the rotating wheel 235 is threadedly connected to the rotating wheel 234, an inclined surface 1 2341 is arranged on the inner end of the rotating wheel 234, and an inclined surface 2352 is arranged on the end of the rotating wheel 235, and a plurality of axially arranged extrusion grooves 2351 are evenly distributed circumferentially on the end where the inclined surface 2352 is located. When the rotating wheel 234 and the rotating wheel 235 rotate relative to each other, the rotating wheel 234 and the rotating wheel 235 approach each other, and at this time, the inclined surface 1 2341 and the inclined surface 2352 abut against each other. At this time, the inclined surface 1 2341 squeezes the inclined surface 2352, so that the diameter of the end of the rotating wheel 235 becomes smaller, and the end of the rotating wheel 235 squeezes the mounting cylinder 233, thereby realizing the relative fixation between the rotating wheel 235 and the mounting cylinder 233. Conversely, when the rotating wheel 234 and the rotating wheel 235 rotate relative to each other, when the rotating wheel 234 and the rotating wheel 235 move away from each other, the rotating wheel 235 no longer squeezes the mounting cylinder 233, and the rotating wheel 235 and the mounting cylinder 233 can rotate relative to each other.

[0058] One end of the rotating wheel 235 away from the fixed cover 23 is bolted to the indicator ring 236, and a mounting seat 2631 is set on the side of the indicator ring 236. An indicator needle 237 is fixedly set in the mounting seat 2631. The end of the indicator needle 237 abuts against the side of the scale three 231. The corresponding center angle between the indicator needle 237 and the blocking column 232 can be directly obtained through the position indicated by the indicator needle 237.

[0059] For further information, see Fig. 9 A driving ring 241 is fixedly provided at one end of the two rotating columns 24 away from each other, and a positioning groove 2411 is provided on the outer side of the driving ring 241. The positioning grooves 2411 are symmetrically arranged, and a driving groove 2412 is provided on the inner side of the driving ring 241. The positioning groove 2411 is engaged with a positioning tooth 251, and the positioning tooth 251 is slidably arranged in the positioning seat 25. A spring is arranged between the positioning tooth 251 and the positioning seat 25. The positioning seat 25 is fixedly connected to the inner wall of the cylinder 223, and the positioning tooth 251 is engaged in the positioning groove 2411 to realize the positioning of the rotating column 24 and prevent the rotating column 24 from rotating freely.

[0060] The one-way driving assembly 263 is clamped in the driving groove 2412, and the one-way driving assembly 263 is bolted to the outer wall of the driving cylinder 26. When the driving cylinder 26 rotates, the driving cylinder 26 squeezes the driving groove 2412 through the one-way driving assembly 263 to drive the driving ring 241 to rotate, and the driving ring 241 drives the rotating column 24 to rotate.

[0061] For further information, see Fig. 9 and Fig.10The one-way driving assembly 263 includes a mounting seat 2631, which is bolted to the outer wall of the driving cylinder near one end of the rotating column 24, and the mounting seat 2631 is hinged to the block 2633. A leaf spring 2632 is arranged between the mounting seat 2631 and the block 2633, and the leaf spring 2632 is welded to the mounting seat 2631.

[0062] The driving cylinder 26 is rotatably sleeved in the mounting cylinder 233. A driving column 261 is fixedly arranged on the outer side wall of the driving cylinder 26 away from the rotating column 24. The driving column 261 abuts against the end of the mounting cylinder 233. The side of the mounting seat 2631 abuts against the limiting ring 262. The limiting ring 262 abuts against the side of the fixing cover 23. The relative axial positioning between the driving cylinder 26 and the fixing cover 23 is achieved by the limiting ring 262 and the driving column 261.

[0063] For further information, see Fig.11 A rectangular groove 242 is provided at one end of the rotating column 24 away from the driving ring 241, and a quadrangular prism 27 is slidably connected in the rectangular groove 242. A triangular groove 271 is provided at one end of the quadrangular prism 27 away from the rotating column 24. The end of the crystal 12 is clamped by the triangular groove 271 to achieve axial positioning and fixation of the crystal 12.

[0064] The other end of the quadrangular prism 27 is threadedly connected to the screw rod 28, and the screw rod 28 is provided with a connection part 281, which is rotatably connected in the rotating column 24. The side of the connection part 281 is provided with a threaded part 282, and the side of the threaded part 282 is provided with an operating part 283. The screw rod 28 is driven to rotate by the operating part 283. The external thread of the threaded part 282 is sleeved with the nut 29, and the side of the nut 29 abuts against the gasket 291. The circumferential relative rotation between the screw rod 28 and the rotating column 24 is achieved by the gasket 291, while the axial relative fixation is achieved. The relative thread rotation between the screw rod 28 and the quadrangular prism 27 is achieved by rotating the screw rod 28, thereby driving the quadrangular prism 27 to move axially, and the quadrangular prism 27 drives the triangular slot 271 to approach the crystal 12, so as to achieve the positioning and fixation of the crystal 12.

[0065] Working principle, see Fig.12 , loosen the locking bolt 211, the longitudinal guide shell 21 and the arc plate 22 move relative to each other, drive the two arc plates 22 away from each other, so that the two installation tubes 233 are on the same axis. Rotate the screw 28 to drive the quadrangular prism 27 to move, and the quadrangular prism 27 drives the triangular slots 271 to move closer to each other, and clamp the end of the crystal 12.

[0066] Loosen the locking bolt 143 to make the transverse guide shell 14 and the arc plate 141 slide relative to each other. At this time, push the arc plate 141 to retract into the transverse guide shell 14, so that the semicircular plate 171 and the semicircular clamping block 18 are away from the crystal. Then fix the locking bolt 143 to achieve relative fixation of the transverse guide shell 14 and the arc plate 141. Fig.12 status in .

[0067] At this time, the longitudinal supporting component 2 drives the crystal to move on the polishing belt 3 to realize the polishing of the surface of the crystal 12. When one surface is polished, the driving cylinder 26 is rotated so that the driving column 261 of the driving cylinder 26 moves from the blocking column 232 to the position of the indicating needle 237. At this time, the angle indicated by the indicating needle 237 is the angle rotated by the driving cylinder 26. The driving cylinder 26 drives the driving ring 241 to rotate a specific angle through the one-way driving component 263. The driving ring 241 drives the quadrangular prism 27 and the crystal 12 to rotate, thereby realizing the polishing of the other surface of the crystal 12.

[0068] The angle of each rotation of the crystal 12 is calculated by the number of faces of the crystal 12, and the rotating wheel 234 and the rotating wheel 235 are rotated so that the rotating wheel 234 and the rotating wheel 235 move away from each other. At this time, the rotating wheel 235 is no longer fixedly connected to the mounting tube 233, and then the rotating wheel 235 is rotated to drive the indicating needle 237 to rotate to a specific angle position, and the positions of the rotating wheel 235 and the indicating needle 237 remain unchanged. The rotating wheel 234 is rotated so that the rotating wheel 234 and the rotating wheel 235 are close to each other, so that the rotating wheel 235 and the indicating needle 237 are fixed on the mounting tube 233. At this time, the angle between the indicating needle 237 and the blocking column 232 is adjusted. By moving the driving column 261 to reciprocate between the indicating needle 237 and the blocking column 232, the driving column 261 can drive the rotating column 24, the quadrangular column 27 and the crystal 12 to rotate a specific angle every time it reciprocates once, so as to realize the grinding of different faces and improve the positioning accuracy and grinding convenience.

[0069] When the middle part of the crystal 12 is polished, adjust the arc plate 141 so that the two cylinders 146 are on the same straight line, and then rotate the screw 16 to drive the two quadrangular prisms 15 and the two semicircular plates 171 to move closer to each other. The semicircular clamps 18 in the two semicircular plates 171 hold the crystal 12 in the holding groove 181. Figure 1 .

[0070] Then, one of the screw rods 28 is rotated to drive the quadrangular prism 27 away from the crystal, and the arc plate 22 is adjusted to retract into the longitudinal guide shell 21, and the other screw rod 28 is kept stationary to keep the triangular slot 271 and the end of the crystal 12 engaged. At this time, the crystal 12 is still in the positioned state. According to the angle of the polished surface of the end of the crystal 12, the angle of the arc plate 22 where the quadrangular prism 27 in contact with the crystal 12 is adjusted, so that the state is as follows: Fig.13, thereby polishing the end of the crystal 12.

[0071] When the polishing of one end of the crystal 12 is completed, it is restored to Figure 1 state, and then repeat the above process to adjust the other end of the crystal to Fig.13 In the state of, the other end of the crystal 12 is polished.

[0072] Since the crystal 12 is always in a fixed and positioned state during the entire adjustment process, there is no need for repeated clamping and no positioning error, thereby improving the grinding accuracy of the crystal and being suitable for grinding crystals 12 of specific shapes.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A special grinding machine for crystal shape processing, comprising a transverse supporting component (1), a longitudinal supporting component (2) and a grinding belt (3), characterized in that: The transverse supporting assembly (1) and the longitudinal supporting assembly (2) are arranged perpendicular to each other, and the intersection of the transverse supporting assembly (1) and the longitudinal supporting assembly (2) is fixedly connected via a fixing seat (11); The transverse supporting component (1) comprises two symmetrically arranged transverse guide shells (14), a transverse partition plate (13) is arranged between the two transverse guide shells (14), an arc plate (141) is slidably arranged in each transverse guide shell (14), a cylinder (146) is arranged at one end of the two arc plates (141) away from each other, a quadrangular prism (15) is slidably arranged in each cylinder (146), a semicircular plate (171) is rotatably arranged at one end of the two quadrangular prisms (15) close to each other, and a semicircular clamping block (18) is rotatably arranged in the two semicircular plates (171); The longitudinal support component (2) comprises two symmetrically arranged longitudinal guide shells (21), the two longitudinal guide shells (21) are bolted and a longitudinal partition plate (213) is arranged in between, an arc plate (22) is slidably arranged in each longitudinal guide shell (21), a cylinder (223) is arranged at one end of the two arc plates (22) away from each other, each cylinder (223) is movably connected to a quadrangular prism (27), and a triangular slot (271) is arranged at one end of the two quadrangular prisms (27) close to each other.

2. A special grinding machine for crystal shape processing according to claim 1, characterized in that: The side of each transverse guide shell (14) is threadedly connected with a locking bolt (143); a limit arc groove (142) is provided through the arc plate (141); a limit rod (144) is provided in the transverse guide shell (14); the limit rod (144) slides in the limit arc groove (142); and a scale (145) is provided on the side of the arc plate (141).

3. A special grinding machine for crystal shape processing according to claim 2, characterized in that: A rectangular groove (147) is provided at the center of each cylinder (146), and a quadrangular column (15) is slidably connected in each rectangular groove (147). A mounting circular groove (151) is provided at one end of two quadrangular columns (15) close to each other, and a round block (17) is rotatably provided in the mounting circular groove (151). The two ends of the two round blocks (17) close to each other are fixedly connected to a semicircular plate (171), flanges (173) are provided at both ends of the semicircular plate (171), and a semicircular clamping block (18) is rotatably connected between the two flanges (173), and a supporting groove (181) is provided in the semicircular clamping block (18).

4. A special grinding machine for crystal shape processing according to claim 3, characterized in that: One end of the quadrangular prism (15) that is away from each other is threadedly connected to a screw rod (16), a retaining ring (161) is provided in the middle of the screw rod (16), a connecting portion (162) is provided on the side of the retaining ring (161), a threaded portion (163) is provided on the side of the connecting portion (162), and an operating portion (164) is provided on the side of the threaded portion (163); The threaded portion 1 (163) is threadedly connected to a nut 1 (165), and the side surface of the nut 1 (165) close to the retaining ring 1 (161) abuts against a gasket 1 (166).

5. A special grinding machine for crystal shape processing according to claim 4, characterized in that: The side surface of each longitudinal guide shell (21) is threadedly connected to a second locking bolt (211), and the second locking bolt (211) abuts against the side surface of the second arc plate (22); A second limiting rod (212) is provided on each longitudinal guide shell (21), and the second limiting rod (212) is slidably arranged in a second limiting arc groove (221) of the second arc plate (22); Each second cylinder (223) is rotatably connected to a rotating column (24); an end ring (224) is arranged at one end of the two second cylinders (223) close to each other; and a fixed cover (23) is bolted to one end of the two second cylinders (223) away from each other.

6. A special grinding machine for crystal shape processing according to claim 5, characterized in that: A third scale (231) arranged in a circular ring shape is arranged on the side of the fixed cover (23), a stop column (232) is fixedly arranged on the side of the fixed cover (23), a mounting cylinder (233) is arranged on the side of the middle part of the fixed cover (23), a rotating wheel (235) is rotatably sleeved on the outer side of the mounting cylinder (233), the outer side of the rotating wheel (235) is threadedly connected to the rotating wheel (234), an inclined surface (2341) is arranged on the inner end of the rotating wheel (234), an inclined surface (2352) is arranged on the end of the rotating wheel (235), and a plurality of axially arranged extrusion grooves (2351) are uniformly distributed in the circumferential direction at the end where the inclined surface (2352) is located; One end of the rotating wheel (235) away from the fixed cover (23) is bolted to the indicator ring (236), a mounting seat (2631) is arranged on the side of the indicator ring (236), an indicator needle (237) is fixedly arranged in the mounting seat (2631), and the end of the indicator needle (237) abuts against the side of the scale three (231).

7. A special grinding machine for crystal shape processing according to claim 6, characterized in that: A driving ring (241) is fixedly arranged at one end of the two rotating columns (24) which is away from each other, a positioning groove (2411) is arranged on the outer side of the driving ring (241), a driving groove (2412) is arranged on the inner side of the driving ring (241), a positioning tooth (251) is clamped in the positioning groove (2411), the positioning tooth (251) is slidably arranged in the positioning seat (25), and the positioning seat (25) is fixedly connected to the inner side wall of the second cylinder (223); The one-way driving assembly (263) is clamped in the driving groove (2412), and the one-way driving assembly (263) is bolted to the outer side wall of the driving cylinder (26).

8. A special grinding machine for crystal shape processing according to claim 7, characterized in that: The one-way driving assembly (263) comprises a mounting seat (2631), the mounting seat (2631) is bolted to the outer wall of the driving cylinder close to one end of the rotating column (24), the mounting seat (2631) is hinged to the clamping block (2633), and a leaf spring (2632) is arranged between the mounting seat (2631) and the clamping block (2633); The driving cylinder (26) is rotatably sleeved in the mounting cylinder (233); a driving column (261) is fixedly arranged on the outer side wall of one end of the driving cylinder (26) away from the rotating column (24); a side surface of the mounting seat (2631) abuts against a limiting ring (262); and the limiting ring (262) abuts against a side surface of the fixing cover (23).

9. A special grinding machine for crystal shape processing according to claim 8, characterized in that: A second rectangular groove (242) is provided at one end of the rotating column (24) away from the driving ring (241), a second quadrangular column (27) is slidably connected in the second rectangular groove (242), and a triangular slot (271) is provided at one end of the second quadrangular column (27) away from the rotating column (24); The other end of the quadrangular prism 2 (27) is threadedly connected to the screw rod 2 (28), the screw rod 2 (28) is provided with a connecting portion 2 (281), the side of the connecting portion 2 (281) is provided with a threaded portion 2 (282), the side of the threaded portion 2 (282) is provided with an operating portion 2 (283), the external thread of the threaded portion 2 (282) is sleeved with a nut 2 (29), and the side of the nut 2 (29) is abutted against a gasket 2 (291).

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