CN115430853A - Inner-cooling type multifunctional ultrahigh precision chuck - Google Patents
Inner-cooling type multifunctional ultrahigh precision chuck Download PDFInfo
- Publication number
- CN115430853A CN115430853A CN202211331733.4A CN202211331733A CN115430853A CN 115430853 A CN115430853 A CN 115430853A CN 202211331733 A CN202211331733 A CN 202211331733A CN 115430853 A CN115430853 A CN 115430853A
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- wall
- chuck
- round rod
- sliding
- elastic chuck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/08—Chucks holding tools yieldably
- B23B31/083—Chucks holding tools yieldably axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention belongs to the technical field of precision chucks, and particularly relates to an inner-cooling type multifunctional ultrahigh precision chuck which comprises a round rod, wherein the lower end of the round rod is provided with two sliding grooves in a bilateral symmetry structure, an elastic chuck is inserted into the lower end of the round rod, the outer wall of the elastic chuck is fixedly provided with two sliding blocks in a bilateral symmetry structure, the sliding blocks are positioned in the sliding grooves and are in sliding connection with the sliding grooves, the upper end of the inner wall of the elastic chuck is fixedly provided with a plurality of limiting rods in an annular array structure, the lower end of the inner wall of the elastic chuck is fixedly provided with two clamping teeth, a cutter head body is inserted into the elastic chuck, the right wall of the round rod is provided with an adjusting assembly, the lower end of the round rod is provided with an inner-cooling mechanism, and the lower end of the round rod is hollow. The quick installation and the dismantlement of having realized that super high-precision chuck used, the stable convenient milling of centre gripping or drilling operation carry out effective cooling to super high-precision chuck simultaneously, make super high-precision chuck cool off the temperature in the centre gripping, increased service function, prolonged super high-precision chuck's life.
Description
Technical Field
The invention relates to the technical field of precision chucks, in particular to an inner-cooling type multifunctional ultrahigh precision chuck.
Background
The chuck is called as an elastic chuck or a collet chuck, is a cylindrical clamp which is used for fixing a drill bit or a milling cutter on a milling machine and is also a fixing device for fixing and reinforcing parts needing to be modified, is a drill chuck arranged on a machine tool spindle and has the function of locking the connection between a cutter and the spindle; the existing ultrahigh precision chuck is used for clamping and mounting a drill bit or a milling cutter through manual adjustment, the drill bit or the milling cutter needs to be replaced by a manual reverse rotation fastener for disassembly, the assembly and disassembly are troublesome and laborious, the operation is inconvenient, and the use effect of the ultrahigh precision chuck is influenced.
Disclosure of Invention
1. Technical problem to be solved
The invention provides an inner-cooling type multifunctional ultrahigh precision chuck, which is based on the technical problems that in the use process of the existing ultrahigh precision chuck, a drill bit or a milling cutter is clamped and installed through manual adjustment, a manual reverse rotation fastener is needed to disassemble when the drill bit or the milling cutter is replaced, the assembly and the disassembly are troublesome and labor-consuming, the operation is inconvenient, and the use effect of the ultrahigh precision chuck is influenced.
2. Technical scheme
The utility model provides an interior multi-functional super high-precision chuck of cold type, includes the round bar, the round bar lower extreme is bilateral symmetry structure and has seted up two spouts, the inside cartridge has been pegged graft of round bar lower extreme, the cartridge outer wall is bilateral symmetry structure and has set firmly two sliders, the slider is located inside the spout, slider and spout sliding connection, the cartridge inner wall upper end is annular array structure and has set firmly a plurality of gag lever posts, cartridge inner wall lower extreme has set firmly two latches, the inside cutter head body of pegging graft of cartridge, round bar right side wall is equipped with adjusting part, the round bar lower extreme is equipped with interior cold mechanism, the round bar lower extreme is the cavity form.
Preferably, the elastic chuck is conical, a plurality of open slots are formed in the bottom surface of the elastic chuck in an annular array structure, the outer wall of the cutter head body is in friction contact with the clamping teeth, and the top surface of the cutter head body is provided with slots which are in plug-in fit with the limiting rods.
Through the technical scheme, the cutter head body is in plug-in fit with the limiting rod through the slot, so that the positioning and the installation of the cutter head body are facilitated, and the elastic chuck is an ultra-high precision chuck.
Preferably, the inner wall of the lower end of the round rod is inclined, and the outer wall of the elastic chuck is in friction contact with the inner wall of the lower end of the round rod.
Through the technical scheme, the round rod pushes the lower end of the elastic chuck to move towards the inner end for clamping.
Preferably, the adjusting component comprises a servo motor, a gear is sleeved on an output shaft of the servo motor, the output shaft of the servo motor is in a front-back symmetrical structure and is rotatably connected to a supporting block, the left wall of the supporting block is fixedly connected with the outer wall of the round rod, and the servo motor is a forward and reverse rotating motor.
Through above-mentioned technical scheme, servo motor output shaft is rotatory along the supporting shoe, makes gear synchronous revolution.
Preferably, the chute wall that is located the right-hand member has seted up the spacing groove, spacing inslot sliding connection has the stopper, the stopper right side wall has set firmly the rack, the gear is connected with the meshing of rack, the stopper bottom surface is connected fixedly with the slider top surface that is located the right-hand member.
Through the technical scheme, the servo motor drives the gear to rotate, the gear is meshed with the gear to be transmitted to the rack and pushes the rack to move, the limiting block slides along the limiting groove and the sliding groove at the right end, and the elastic chuck is driven to synchronously move.
Preferably, the inner cooling mechanism comprises a water inlet pipe, the water inlet pipe is located in the middle of the round bar, the two water inlet pipes are arranged in a front-back symmetrical structure, and the round bar is provided with two water collecting tanks in a front-back symmetrical structure.
Through above-mentioned technical scheme, save the coolant liquid through the water catch bowl, conveniently cool down the operation to the round bar.
Preferably, the outer wall of the lower end of the round rod is in a front-back symmetrical structure and is communicated with two water outlet pipes, and the water inlet pipe and the water outlet pipes are communicated with the water collecting tank.
Through above-mentioned technical scheme, the inlet tube is convenient to be inputed the coolant liquid, and the outlet pipe is convenient discharges the coolant liquid from the water catch bowl.
Preferably, a plurality of radiating fins are fixedly arranged on the outer wall of the round rod in a front-back symmetrical structure, and sealing plugs are connected to the outer sides of the water inlet pipe and the water outlet pipe through threaded holes in a threaded manner.
Through above-mentioned technical scheme, the fin gives off the cooling to the too high temperature of pole outer wall, has improved the radiating effect of pole.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the gear is driven to rotate by the servo motor, the gear is meshed to transmit to the rack and pushes the rack to move, the limiting block slides downwards along the limiting groove and the sliding groove at the right end, the elastic chuck is pushed to move downwards synchronously, then the milling cutter or the drill bit is installed through the cutter head body, the cutter head body is matched with the limiting rod in an inserting mode through the slot, the servo motor rotates reversely after the positioning of the cutter head body is completed, the elastic chuck is pulled to move upwards through the limiting block, the outer wall of the lower end of the elastic chuck is extruded by the inner wall of the lower end of the round rod at the moment, the lower end of the open slot is reduced, the clamping teeth are in friction contact with the cutter head body to clamp and fix, the servo motor stops rotating and locks at the moment, the round rod is driven to rotate through the rotating shaft of an external milling machine or a drilling machine after the fixing is completed, the cutter head body rotates to mill or drill, and the round rod and the elastic chuck are cooled through an internal cooling mechanism. The quick installation and the dismantlement of super high precision chuck in the use have been realized, operation labour saving and time saving has made things convenient for the quick replacement to milling cutter or drill bit, and the stable convenient milling or drilling operation of centre gripping is effectively cooled down to super high precision chuck simultaneously, has avoided having prolonged the life of super high precision chuck because of milling or the high temperature damage when drilling.
2. Carry outside coolant liquid to the water catch bowl through the inlet tube through outside water pipe inside, the reverse rotation sealing plug seals after accomplishing the filling, the operation of cooling down is carried out for the high temperature that milling cutter or drill bit during operation produced through the inside coolant liquid of water catch bowl, give off the too high temperature of round bar outer wall through the fin, the heat of having avoided too high milling cutter or drill bit causes the emergence of damage to collet chuck and round bar, the cooling effect of interior cold type is better, collet chuck's integrality has been protected, make super high precision chuck cool down in the centre gripping, service function has been increased, make its function no longer single, the convenience of use has been improved, the clamping effect and the integrality of super high precision chuck have been protected, the good operation of simple structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a round bar construction of the present invention;
FIG. 3 is a cross-sectional view of the collet construction of the present invention;
FIG. 4 is a schematic view of the stopper structure of the present invention;
FIG. 5 is a schematic view of the adjustment assembly of the present invention;
fig. 6 is a sectional view of a sump structure according to the present invention.
In the figure: 1. a round bar; 2. a chute; 3. an elastic collet; 301. an open slot; 4. a slider; 5. a limiting rod; 6. clamping teeth; 7. a tool head body; 71. inserting slots; 8. an adjustment assembly; 81. a servo motor; 82. a gear; 83. a support block; 84. a limiting groove; 85. a limiting block; 86. a rack; 9. an internal cooling mechanism; 91. a water inlet pipe; 92. a water collection tank; 93. a water outlet pipe; 94. a heat sink; 95. and (4) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The embodiment of the application provides an inner-cooling type multifunctional ultra-high precision chuck, which is described below with reference to the accompanying drawings.
Fig. 1 is a schematic overall structure view of the present invention, fig. 2 is a sectional view of a round bar structure of the present invention, fig. 3 is a sectional view of an elastic collet structure of the present invention, fig. 4 is a schematic structural view of a stopper block of the present invention, and fig. 5 is a schematic structural view of an adjustment assembly of the present invention.
Among the relevant prior art, super high precision chuck carries out the centre gripping installation to drill bit or milling cutter through artifical manual regulation in the use, needs manual counter-rotation fastener to dismantle when changing drill bit or milling cutter, and the installation is wasted time and energy and is operated inconveniently with dismantling, influences super high precision chuck's result of use.
Therefore, in order to solve the defects in the prior art, as shown in fig. 1-5, the application provides an inner-cooling type multifunctional ultrahigh precision chuck, which comprises a round rod 1, wherein the lower end of the round rod 1 is of a bilateral symmetry structure and is provided with two sliding chutes 2, an elastic chuck 3 is inserted inside the lower end of the round rod 1, two sliding blocks 4 are fixedly arranged on the outer wall of the elastic chuck 3 in a bilateral symmetry structure, the sliding blocks 4 are positioned inside the sliding chutes 2, the sliding blocks 4 are slidably connected with the sliding chutes 2, the upper end of the inner wall of the elastic chuck 3 is of an annular array structure and is fixedly provided with a plurality of limiting rods 5, two clamping teeth 6 are fixedly arranged at the lower end of the inner wall of the elastic chuck 3, a tool head body 7 is inserted inside the elastic chuck 3, the right wall of the round rod 1 is provided with an adjusting assembly 8, the lower end of the round rod 1 is provided with an inner-cooling mechanism 9, and the lower end of the round rod 1 is of a hollow shape.
In the technical scheme of the application, the elastic chuck 3 is conical, the bottom surface of the elastic chuck 3 is in an annular array structure and is provided with a plurality of open grooves 301, the outer wall of the cutter head body 7 is in frictional contact with the latch 6, the top surface of the cutter head body 7 is provided with a slot 71, and the slot 71 is in inserted fit with the limiting rod 5; the cutter head body 7 is in plug-in fit with the limiting rod 5 through the slot 71, so that the positioning and the installation of the cutter head body 7 are facilitated.
In the technical scheme of the application, the inner wall of the lower end of the round rod 1 is inclined, and the outer wall of the elastic chuck 3 is in friction contact with the inner wall of the lower end of the round rod 1; the round rod 1 pushes the lower end of the elastic chuck 3 to move towards the inner end for clamping, and the elastic chuck 3 is an ultra-high precision chuck.
In the technical scheme of the application, the adjusting assembly 8 comprises a servo motor 81, a gear 82 is sleeved on an output shaft of the servo motor 81, the output shaft of the servo motor 81 is rotationally connected to a supporting block 83 in a front-back symmetrical structure, the left wall of the supporting block 83 is fixedly connected with the outer wall of the round rod 1, and the servo motor 81 is a forward and reverse rotating motor; the output shaft of the servo motor 81 rotates along the support block 83, and the gear 82 rotates in synchronization.
In the technical scheme of the application, a limiting groove 84 is formed in the groove wall of the sliding groove 2 at the right end, a limiting block 85 is connected in the limiting groove 84 in a sliding manner, a rack 86 is fixedly arranged on the right wall of the limiting block 85, the gear 82 is meshed with the rack 86, and the bottom surface of the limiting block 85 is fixedly connected with the top surface of the sliding block 4 at the right end; the servo motor 81 drives the gear 82 to rotate, the gear 82 is meshed with and transmitted to the rack 86 and pushes the rack 86 to move, so that the limiting block 85 slides along the limiting groove 84 and the sliding groove 2 at the right end to drive the elastic chuck 3 to move synchronously.
Firstly, a round rod 1 is connected and fixed with a rotating shaft of an external milling machine or drilling machine, a gear 82 is driven to rotate through a servo motor 81, the gear 82 is meshed and transmitted to a rack 86 and pushes the rack 86 to move, a limiting block 85 slides downwards along a limiting groove 84 and a sliding groove 2 located at the right end, an elastic chuck 3 is pushed to synchronously move downwards, then a milling cutter or a drill bit is installed through a cutter head body 7, the cutter head body 7 is in plug-in fit with a limiting rod 5 through a slot 71, the servo motor 81 rotates reversely after the positioning of the cutter head body 7 is completed, the elastic chuck 3 is pulled to move upwards through the limiting block 85, the inner wall of the lower end of the round rod 1 extrudes the outer wall of the lower end of the elastic chuck 3 at the moment, the lower end of an open slot 301 is reduced, a latch 6 is in frictional contact with the cutter head body 7 to clamp and fix, the servo motor 81 stops rotating and locks at the moment, the round rod 1 is driven to rotate through the rotating shaft of the external milling machine or drilling machine after the fixing is completed, and the cutter head body 7 rotates to mill or drill hole.
The second embodiment of the present application provides an inner-cooling type multifunctional ultra-high precision chuck, which will be described below with reference to the accompanying drawings, and fig. 6 is a sectional view of a water collecting tank structure according to the present invention.
Specifically, on the basis of the first embodiment, as shown in fig. 6, the inner cooling mechanism 9 includes a water inlet pipe 91, the water inlet pipe 91 is located in the middle of the round bar 1, the water inlet pipe 91 is provided with two front and back symmetric structures, the round bar 1 is provided with two water collecting tanks 92 in the front and back symmetric structure, the cooling liquid is stored through the water collecting tanks 92, and the round bar 1 is conveniently cooled.
In the technical scheme of the application, the outer wall of the lower end of the round rod 1 is in a front-back symmetrical structure and is communicated with two water outlet pipes 93, and the water inlet pipe 91 and the water outlet pipes 93 are communicated with a water collecting tank 92; the inlet tube 91 conveniently inputs the coolant, and the outlet tube 93 conveniently discharges the coolant from the water catch bowl 92.
In the technical scheme of the application, a plurality of radiating fins 94 are fixedly arranged on the outer wall of the round rod 1 in a front-back symmetrical structure, and the outer sides of the water inlet pipe 91 and the water outlet pipe 93 are both connected with a sealing plug 95 through threaded holes in a threaded manner; the cooling fins 94 radiate the overhigh temperature of the outer wall of the round rod 1 to reduce the temperature, and the heat dissipation effect of the round rod 1 is improved.
During the use, round bar 1 is before rotatory, sealing plug 95 of reverse rotation inlet tube 91 respectively, carry outside coolant liquid to water catch bowl 92 inside through inlet tube 91 through outside water pipe, reverse rotation sealing plug 95 seals after accomplishing the filling, the high temperature that produces for milling cutter or drill bit during operation through the coolant liquid of water catch bowl 92 inside carries out the cooling operation, give off through fin 94 the too high temperature of round bar 1 outer wall, the heat of having avoided too high milling cutter or drill bit causes the emergence of damage to collet 3 and round bar 1, the cooling effect of interior cold type is better, the integrality of collet 3 has been protected.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a multi-functional super high-precision chuck of interior cold type, includes round bar (1), its characterized in that: the cutting tool is characterized in that the lower end of the round rod (1) is of a bilateral symmetry structure and is provided with two sliding grooves (2), an elastic chuck (3) is inserted into the lower end of the round rod (1), the outer wall of the elastic chuck (3) is of a bilateral symmetry structure and is fixedly provided with two sliding blocks (4), the sliding blocks (4) are located inside the sliding grooves (2), the sliding blocks (4) are in sliding connection with the sliding grooves (2), the upper end of the inner wall of the elastic chuck (3) is of an annular array structure and is fixedly provided with a plurality of limiting rods (5), the lower end of the inner wall of the elastic chuck (3) is fixedly provided with two clamping teeth (6), a tool head body (7) is inserted into the elastic chuck (3), the right wall of the round rod (1) is provided with an adjusting assembly (8), the lower end of the round rod (1) is provided with an inner cooling mechanism (9), and the lower end of the round rod (1) is of a hollow shape.
2. The inner-cooling type multifunctional ultra-high precision chuck according to claim 1, characterized in that: the elastic chuck (3) is coniform, a plurality of open slots (301) are formed in the bottom surface of the elastic chuck (3) in an annular array structure, the outer wall of the cutter head body (7) is in friction contact with the clamping teeth (6), the top surface of the cutter head body (7) is provided with a slot (71), and the slot (71) is in plug-in fit with the limiting rod (5).
3. The inner-cooling type multifunctional ultrahigh precision chuck according to claim 1, characterized in that: the inner wall of the lower end of the round rod (1) is inclined, and the outer wall of the elastic chuck (3) is in friction contact with the inner wall of the lower end of the round rod (1).
4. The inner-cooling type multifunctional ultra-high precision chuck according to claim 1, characterized in that: the adjusting component (8) comprises a servo motor (81), a gear (82) is sleeved on an output shaft of the servo motor (81), a front-back symmetrical structure is formed on an output shaft of the servo motor (81) and is rotationally connected with a supporting block (83), the left wall of the supporting block (83) is fixedly connected with the outer wall of the round rod (1), and the servo motor (81) is a forward and reverse rotating motor.
5. The inner-cooling type multifunctional ultra-high precision chuck according to claim 4, characterized in that: limiting grooves (84) are formed in the groove wall of the sliding groove (2) at the right end, limiting blocks (85) are connected to the inner portions of the limiting grooves (84) in a sliding mode, racks (86) are fixedly arranged on the right wall of the limiting blocks (85), the gears (82) are connected with the racks (86) in a meshed mode, and the bottom surfaces of the limiting blocks (85) are fixedly connected with the top surface of a sliding block (4) at the right end.
6. The inner-cooling type multifunctional ultra-high precision chuck according to claim 1, characterized in that: interior cold mechanism (9) are including inlet tube (91), inlet tube (91) are located round bar (1) middle part, inlet tube (91) are symmetrical structure and are equipped with two around being, symmetrical structure has seted up two water catch bowl (92) around being on round bar (1).
7. The inner-cooling type multifunctional ultra-high precision chuck according to claim 6, characterized in that: the outer wall of the lower end of the round rod (1) is of a front-back symmetrical structure and is communicated with two water outlet pipes (93), and the water inlet pipe (91) and the water outlet pipes (93) are communicated with a water collecting tank (92).
8. The inner-cooling type multifunctional ultra-high precision chuck according to claim 7, characterized in that: the outer wall of the round rod (1) is of a front-back symmetrical structure, a plurality of radiating fins (94) are fixedly arranged, and the outer sides of the water inlet pipe (91) and the water outlet pipe (93) are both connected with a sealing plug (95) through threaded holes in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211331733.4A CN115430853B (en) | 2022-10-28 | 2022-10-28 | Inner-cooling type multifunctional ultrahigh precision chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211331733.4A CN115430853B (en) | 2022-10-28 | 2022-10-28 | Inner-cooling type multifunctional ultrahigh precision chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115430853A true CN115430853A (en) | 2022-12-06 |
| CN115430853B CN115430853B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211331733.4A Active CN115430853B (en) | 2022-10-28 | 2022-10-28 | Inner-cooling type multifunctional ultrahigh precision chuck |
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| CN (1) | CN115430853B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689845A (en) * | 2023-08-04 | 2023-09-05 | 福建祥鑫新能源汽车配件制造有限公司 | Milling and deburring device for inner cavities of sectional materials for battery tray production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689845A (en) * | 2023-08-04 | 2023-09-05 | 福建祥鑫新能源汽车配件制造有限公司 | Milling and deburring device for inner cavities of sectional materials for battery tray production |
| CN116689845B (en) * | 2023-08-04 | 2023-10-27 | 福建祥鑫新能源汽车配件制造有限公司 | Milling and deburring device for inner cavities of sectional materials for battery tray production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115430853B (en) | 2023-05-23 |
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