CN108274647B - Self-adaptive trimming tool rest for cutting monocrystalline material and cutting method - Google Patents
Self-adaptive trimming tool rest for cutting monocrystalline material and cutting method Download PDFInfo
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- CN108274647B CN108274647B CN201810308949.6A CN201810308949A CN108274647B CN 108274647 B CN108274647 B CN 108274647B CN 201810308949 A CN201810308949 A CN 201810308949A CN 108274647 B CN108274647 B CN 108274647B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
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Abstract
A single crystal material cutting self-adaptive fine-tuning tool rest and a cutting method, wherein the tool rest comprises a tool holder, a tool fastening screw, a tool holder support plate, a tool machining front angle adjusting component and a tool cutting depth adjusting component; the cutter machining front angle adjusting assembly comprises a front pitching driving mechanism and a rear pitching driving mechanism; the cutter cutting depth adjusting assembly comprises a base, a front baffle, a rear baffle, a sliding block, a sliding rail, a telescopic balancing mechanism and a telescopic driving mechanism; the method comprises the following steps: establishing an average cutting force database, wherein the database also stores optimal combination data of a cutter machining rake angle and a cutter cutting depth; starting cutting, comparing actual data with database data, and selecting matching data; according to the selected data, the optimal combination data of the cutter processing front angle and the cutter cutting depth are called out; and sending a control signal to the piezoelectric driver, and carrying out fine adjustment on the cutter machining front angle and the cutter cutting depth until the actual cutter machining front angle and the cutter cutting depth combined data are consistent with the optimal combined data in the database.
Description
Technical Field
The invention belongs to the technical field of monocrystalline material cutting processing, and particularly relates to a monocrystalline material cutting self-adaptive fine-tuning tool rest and a cutting method.
Background
Because the monocrystalline material has anisotropy of mechanical and physical properties, the processing quality of the circumferential outer surface of the monocrystalline material is different after the monocrystalline material is subjected to turning. For some single crystal materials, they also exhibit extremely strong friability, and even crack on the machined surface after turning with a single point diamond tool.
In the actual cutting process, the cutting processing of the single crystal material is usually completed under the same stress condition, but due to the fact that the plastic deformation capability of the single crystal material in different crystal directions is different, the cutting force fluctuates along with the crystal orientation, the fluctuation of the cutting force also causes the fluctuation of the surface quality, the brittle-plastic transformation phenomenon can occur in some crystal directions, and the processed surface roughness is different, so that the sector distribution characteristics with alternate brightness and darkness are presented.
Many factors influence the surface processing quality of monocrystalline materials, wherein the geometric parameters and the processing technological parameters of the diamond cutter can influence the surface processing quality. For example, when cutting single crystal silicon using a diamond tool, a uniform machined surface can be more easily obtained with a suitably negative rake angle, a smaller tool edge, and a smaller cutting depth.
In order to realize one-time clamping of the cutter and improve the machining efficiency, a smaller cutter cutting edge radius is selected, and then the optimal cutter rake angle and the optimal cutting depth are used for combination according to the special mechanical characteristics of the monocrystalline material, so that the monocrystalline material workpiece with uniform and consistent surface can be machined.
However, in order to find a suitable combination of the optimal tool rake angle and the optimal cutting depth, the tool needs to be clamped repeatedly during the machining process to adjust the tool machining rake angle and the cutting depth, so that the suitable combination can be found. However, repeated clamping of the tool can seriously affect the machining efficiency, and meanwhile, each clamping process also needs to be re-aligned and aligned, so that the machining precision can be seriously affected.
At present, the quick servo tool rest for cutting single crystal materials is mainly divided into two types, wherein the first type of servo tool rest can only change the cutting depth of a tool in the machining process, and the second type of servo tool rest can only change the machining rake angle of the tool. Although the two types of servo tool holders can improve the processing surface quality of the monocrystalline material to a certain extent, factors influencing the surface quality are not single, and the two types of servo tool holders can only meet the adjustment of a single parameter, so that the processing surface quality of the monocrystalline material cannot be further improved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the self-adaptive trimming tool rest for cutting the monocrystalline material and the cutting method, which can change the cutting rake angle and the cutting depth of the tool in the machining process, and the tool only needs to be clamped once, so that the influence of clamping the tool for multiple times on the machining efficiency and the machining quality is avoided, and the quality of the machined surface of the monocrystalline material can be further improved.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a self-adaptive fine tuning tool rest for cutting monocrystalline materials comprises a tool holder, a tool fastening screw, a tool holder support plate, a tool machining rake angle adjusting component and a tool cutting depth adjusting component; the cutter machining front angle adjusting assembly comprises a front pitching driving mechanism and a rear pitching driving mechanism; the cutter cutting depth adjusting assembly comprises a base, a front baffle, a rear baffle, a sliding block, a sliding rail, a telescopic balancing mechanism and a telescopic driving mechanism; the tool holder is fixedly arranged on the tool holder supporting plate, and the tool is fixedly connected with the tool holder through a tool fastening screw; the tool holder support plate is connected with the sliding block through the front pitching driving mechanism and the rear pitching driving mechanism, and is positioned above the sliding block; the front baffle, the rear baffle and the sliding rail are fixedly arranged on the base, the sliding rail is positioned between the front baffle and the rear baffle, and the sliding rail is perpendicular to the front baffle and the rear baffle; the sliding block is arranged on the sliding rail, and has linear movement freedom degree relative to the sliding rail; the front baffle is connected with the sliding block through a telescopic balance mechanism, and the rear baffle is connected with the sliding block through a telescopic driving mechanism.
The front pitching driving mechanism and the rear pitching driving mechanism have the same structure and comprise a first piezoelectric driver, a first force transmission gasket, a first guiding static cylinder, a first guiding moving cylinder and a first supporting spring; the first guide static cylinder is vertically and fixedly arranged on the upper end face of the sliding block through a mounting hole on the sliding block, the lower end of the first guide movable cylinder is inserted into the first guide static cylinder, and the first guide movable cylinder has linear movement freedom degree relative to the first guide static cylinder; the upper end of the first guide movable cylinder is connected with the lower end surface of the tool holder support plate through a universal ball head structure; the first piezoelectric driver is fixedly arranged at the bottommost end of the first guide static cylinder, and the first force transmission gasket is arranged on the first piezoelectric driver; the first supporting spring is vertically arranged in the first guide static cylinder and the first guide dynamic cylinder, the lower end of the first supporting spring is in abutting contact with the first force transmission gasket, and the upper end of the first supporting spring is in abutting contact with the universal ball head structure; the control end of the first piezoelectric driver is connected with a machine tool control system.
The number of the front pitching driving mechanisms is two, and the two front pitching driving mechanisms are symmetrically distributed on two sides of the sliding rail; the number of the back pitching driving mechanisms is two, and the two back pitching driving mechanisms are symmetrically distributed on two sides of the sliding rail.
The telescopic driving mechanism comprises a second piezoelectric driver, a second force transmission gasket, a second guiding static cylinder, a second guiding moving cylinder and a second supporting spring; the second guide static cylinder is horizontally and fixedly arranged on the inner side surface of the rear baffle plate through a mounting hole on the rear baffle plate, one end of the second guide movable cylinder is inserted into the second guide static cylinder, and the other end of the second guide movable cylinder is fixedly connected with the sliding block; the second piezoelectric driver is fixedly arranged at the rightmost end of the second guide static cylinder, and the second force transmission gasket is close to the second piezoelectric driver; the second supporting spring is horizontally arranged in the second guide static cylinder and the second guide dynamic cylinder, one end of the second supporting spring is in abutting contact with the second force transmission gasket, and the other end of the second supporting spring is in abutting contact with the sliding block; and the control end of the second piezoelectric driver is connected with a machine tool control system.
The telescopic balancing mechanism comprises a third guiding static cylinder, a third guiding moving cylinder and a third supporting spring; one end of the third guiding static cylinder is fixedly connected with the front baffle, one end of the third guiding movable cylinder is inserted into the third guiding static cylinder, and the other end of the third guiding movable cylinder is fixedly connected with the sliding block; the third supporting spring is horizontally arranged in the third guide static cylinder and the third guide moving cylinder, one end of the third supporting spring is in abutting contact with the front baffle, and the other end of the third supporting spring is in abutting contact with the sliding block.
The monocrystalline material cutting method adopts the monocrystalline material cutting self-adaptive fine adjustment tool rest, and comprises the following steps:
step one: presetting the surface roughness of the processed monocrystalline material, and determining the average cutting force required when the surface roughness is met by using molecular dynamics simulation software;
step two: a database is established in a machine tool control system and is used for storing the average cutting force data acquired in the first step, the database also stores the optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth, and each group of optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth is matched with a group of corresponding average cutting force data;
step three: starting cutting, feeding the actual cutting force data back to a machine tool control system through a piezoelectric driver, comparing the actual cutting force data with average cutting force data stored in a database by the machine tool control system, and selecting a group of average cutting force data corresponding to the actual cutting force data;
step four: further calling out optimal combination data of the cutter machining rake angle and the cutter cutting depth matched with the set of average cutting force data according to the set of average cutting force data selected by the machine tool control system;
step five: and the machine tool control system sends a control signal to the piezoelectric driver according to the called optimal combination data of the cutter machining front angle and the cutter cutting depth, the cutter machining front angle is finely adjusted through the cutter machining front angle adjusting assembly, and the cutter cutting depth is finely adjusted through the cutter cutting depth adjusting assembly until the actual combination data of the cutter machining front angle and the cutter cutting depth are consistent with the optimal combination data in the database.
The invention has the beneficial effects that:
compared with the prior art, the invention can change the cutting angle and the cutting depth of the cutter in the machining process, the cutter only needs to be clamped once, the influence of repeated clamping of the cutter on the machining efficiency and the machining quality is avoided, and the quality of the machined surface of the monocrystalline material can be further improved.
Drawings
FIG. 1 is a schematic view of a single crystal material cutting adaptive trimming tool holder according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
in the figure, a 1-tool holder, a 2-tool fastening screw, a 3-tool holder support plate, a 4-front pitching driving mechanism, a 5-rear pitching driving mechanism, a 6-base, a 7-front baffle, an 8-rear baffle, a 9-slider, a 10-sliding rail, an 11-telescopic balancing mechanism, a 12-telescopic driving mechanism, a 13-tool, a 14-first piezoelectric driver, a 15-first force transmission gasket, a 16-first guiding static cylinder, a 17-first guiding dynamic cylinder, a 18-first support spring, a 19-universal ball structure, a 20-second piezoelectric driver, a 21-second force transmission gasket, a 22-second guiding static cylinder, a 23-second guiding dynamic cylinder, a 24-second support spring, a 25-third guiding static cylinder, a 26-third guiding dynamic cylinder and a 27-third support spring.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 3, a single crystal material cutting self-adaptive fine adjustment tool rest comprises a tool holder 1, a tool fastening screw 2, a tool holder support plate 3, a tool machining front angle adjusting component and a tool cutting depth adjusting component; the cutter machining front angle adjusting assembly comprises a front pitching driving mechanism 4 and a rear pitching driving mechanism 5; the cutter cutting depth adjusting assembly comprises a base 6, a front baffle 7, a rear baffle 8, a sliding block 9, a sliding rail 10, a telescopic balancing mechanism 11 and a telescopic driving mechanism 12; the tool holder 1 is fixedly arranged on the tool holder supporting plate 3, and the tool 13 is fixedly connected with the tool holder 1 through the tool fastening screw 2; the tool holder support plate 3 is connected with the sliding block 9 through the front pitching driving mechanism 4 and the rear pitching driving mechanism 5, and the tool holder support plate 3 is positioned above the sliding block 9; the front baffle 7, the rear baffle 8 and the sliding rail 10 are fixedly arranged on the base 6, the sliding rail 10 is positioned between the front baffle 7 and the rear baffle 8, and the sliding rail 10 is perpendicular to the front baffle 7 and the rear baffle 8; the sliding block 9 is arranged on the sliding rail 10, and the sliding block 9 has linear movement freedom degree relative to the sliding rail 10; the front baffle plate 7 is connected with the sliding block 9 through a telescopic balance mechanism 11, and the rear baffle plate 8 is connected with the sliding block 9 through a telescopic driving mechanism 12.
The front pitching driving mechanism 4 and the rear pitching driving mechanism 5 have the same structure and comprise a first piezoelectric driver 14, a first force transmission gasket 15, a first guiding static cylinder 16, a first guiding movable cylinder 17 and a first supporting spring 18; the first guide static cylinder 16 is vertically and fixedly arranged on the upper end face of the sliding block 9 through a mounting hole on the sliding block 9, the lower end of the first guide movable cylinder 17 is inserted into the first guide static cylinder 16, and the first guide movable cylinder 17 has linear movement freedom degree relative to the first guide static cylinder 16; the upper end of the first guide movable cylinder 17 is connected with the lower end surface of the tool holder support plate 3 through a universal ball head structure 19; the first piezoelectric driver 14 is fixedly arranged at the bottommost end of the first guide static cylinder 16, and the first force transmission gasket 15 is arranged on the first piezoelectric driver 14; the first supporting spring 18 is vertically arranged in the first guiding static cylinder 16 and the first guiding moving cylinder 17, the lower end of the first supporting spring 18 is in abutting contact with the first force transmission gasket 15, and the upper end of the first supporting spring 18 is in abutting contact with the universal ball head structure 19; the control end of the first piezoelectric driver 14 is connected with a machine tool control system.
The number of the front pitching driving mechanisms 4 is two, and the two front pitching driving mechanisms 4 are symmetrically distributed on two sides of the sliding rail 10; the number of the back pitching driving mechanisms 5 is two, and the two back pitching driving mechanisms 5 are symmetrically distributed on two sides of the sliding rail 10.
The telescopic driving mechanism 12 comprises a second piezoelectric driver 20, a second force transmission gasket 21, a second guiding static cylinder 22, a second guiding moving cylinder 23 and a second supporting spring 24; the second guiding static cylinder 22 is horizontally and fixedly arranged on the inner side surface of the rear baffle plate 8 through a mounting hole on the rear baffle plate 8, one end of the second guiding movable cylinder 23 is inserted into the second guiding static cylinder 22, and the other end of the second guiding movable cylinder 23 is fixedly connected with the sliding block 9; the second piezoelectric driver 20 is fixedly arranged at the rightmost end of the second guide static cylinder 22, and the second force transmission gasket 21 is close to the second piezoelectric driver 20; the second supporting spring 24 is horizontally arranged in the second guiding static cylinder 22 and the second guiding moving cylinder 23, one end of the second supporting spring 24 is in abutting contact with the second force transmission gasket 21, and the other end of the second supporting spring 24 is in abutting contact with the sliding block 9; the control end of the second piezoelectric actuator 20 is connected to a machine tool control system.
The telescopic balancing mechanism 11 comprises a third guiding static cylinder 25, a third guiding moving cylinder 26 and a third supporting spring 27; one end of the third guiding static cylinder 25 is fixedly connected with the front baffle 7, one end of the third guiding movable cylinder 26 is inserted into the third guiding static cylinder 25, and the other end of the third guiding movable cylinder 26 is fixedly connected with the sliding block 9; the third supporting spring 27 is horizontally arranged in the third guiding static cylinder 25 and the third guiding moving cylinder 26, one end of the third supporting spring 27 is in abutting contact with the front baffle 7, and the other end of the third supporting spring 27 is in abutting contact with the sliding block 9.
The monocrystalline material cutting method adopts the monocrystalline material cutting self-adaptive fine adjustment tool rest, and comprises the following steps:
step one: presetting the surface roughness of the processed monocrystalline material, and determining the average cutting force required when the surface roughness is met by using molecular dynamics simulation software;
step two: a database is established in a machine tool control system and is used for storing the average cutting force data acquired in the first step, the database also stores the optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth, and each group of optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth is matched with a group of corresponding average cutting force data;
step three: starting cutting, feeding the actual cutting force data back to a machine tool control system through a piezoelectric driver, comparing the actual cutting force data with average cutting force data stored in a database by the machine tool control system, and selecting a group of average cutting force data corresponding to the actual cutting force data;
step four: further calling out optimal combination data of the cutter machining rake angle and the cutter cutting depth matched with the set of average cutting force data according to the set of average cutting force data selected by the machine tool control system;
step five: and the machine tool control system sends a control signal to the piezoelectric driver according to the called optimal combination data of the cutter machining front angle and the cutter cutting depth, the cutter machining front angle is finely adjusted through the cutter machining front angle adjusting assembly, and the cutter cutting depth is finely adjusted through the cutter cutting depth adjusting assembly until the actual combination data of the cutter machining front angle and the cutter cutting depth are consistent with the optimal combination data in the database.
The detailed fine tuning process of the tool machining rake angle and the tool cutting depth will be described below with reference to the accompanying drawings.
When it is necessary to increase the tool working rake angle, the front pitch drive mechanism 4 is actuated, and the rear pitch drive mechanism 5 is not actuated. After receiving a control signal sent by a machine tool control system, the first piezoelectric driver 14 in the front pitching driving mechanism 4 enables piezoelectric ceramics in the first piezoelectric driver 14 to radially stretch, so that the first supporting spring 18 is pushed upwards by means of the first force transmission gasket 15, meanwhile, the tool holder supporting plate 3 rotates around the universal ball head structure 19 and is lifted upwards, and finally fine adjustment and increase of the machining front angle of the tool 13 are achieved through lifting up of the tool holder supporting plate 3.
When it is necessary to reduce the tool machining rake angle, the front pitch drive mechanism 4 does not operate, and the rear pitch drive mechanism 5 does. After receiving a control signal sent by a machine tool control system, the first piezoelectric driver 14 in the back pitching driving mechanism 5 enables piezoelectric ceramics in the first piezoelectric driver 14 to radially stretch, so that the first supporting spring 18 is pushed upwards by means of the first force transmission gasket 15, meanwhile, the tool holder supporting plate 3 rotates around the universal ball head structure 19 and is pushed down, and finally fine adjustment reduction of a machining front angle of the tool 13 is achieved through the pushing down of the tool holder supporting plate 3.
When it is necessary to increase the cutting depth of the tool, the telescopic drive mechanism 12 is operated. After receiving a control signal sent by a machine tool control system, the second piezoelectric driver 20 in the telescopic driving mechanism 12 enables piezoelectric ceramics in the second piezoelectric driver 20 to radially stretch, and further pushes the second supporting spring 24 leftwards by means of the second force transmission gasket 21, synchronous compression is achieved between the second supporting spring 24 and the third supporting spring 27, meanwhile, the sliding block 9 moves leftwards along the sliding rail 10, the tool holder supporting plate 3 on the sliding block 9 is synchronously driven to move through movement of the sliding block 9, and finally fine adjustment and increase of the cutting depth of the tool 13 are achieved through left movement of the tool holder supporting plate 3.
When it is desired to reduce the depth of cut of the tool, the telescopic drive mechanism 12 is actuated. After receiving the control signal sent by the machine tool control system, the second piezoelectric driver 20 in the telescopic driving mechanism 12 enables the piezoelectric ceramics in the second piezoelectric driver 20 to retract radially, at the moment, the second supporting spring 24 and the third supporting spring 27 realize synchronous extension, meanwhile, the sliding block 9 moves rightward along the sliding rail 10, the tool holder supporting plate 3 thereon is synchronously driven to move through the movement of the sliding block 9, and finally, the trimming reduction of the cutting depth of the tool 13 is realized through the rightward movement of the tool holder supporting plate 3.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (3)
1. A monocrystalline material cuts self-adaptation fine setting knife rest, its characterized in that: the tool comprises a tool holder, a tool fastening screw, a tool holder supporting plate, a tool machining front angle adjusting assembly and a tool cutting depth adjusting assembly; the cutter machining front angle adjusting assembly comprises a front pitching driving mechanism and a rear pitching driving mechanism; the cutter cutting depth adjusting assembly comprises a base, a front baffle, a rear baffle, a sliding block, a sliding rail, a telescopic balancing mechanism and a telescopic driving mechanism; the tool holder is fixedly arranged on the tool holder supporting plate, and the tool is fixedly connected with the tool holder through a tool fastening screw; the tool holder support plate is connected with the sliding block through the front pitching driving mechanism and the rear pitching driving mechanism, and is positioned above the sliding block; the front baffle, the rear baffle and the sliding rail are fixedly arranged on the base, the sliding rail is positioned between the front baffle and the rear baffle, and the sliding rail is perpendicular to the front baffle and the rear baffle; the sliding block is arranged on the sliding rail, and has linear movement freedom degree relative to the sliding rail; the front baffle plate is connected with the sliding block through a telescopic balance mechanism, and the rear baffle plate is connected with the sliding block through a telescopic driving mechanism; the front pitching driving mechanism and the rear pitching driving mechanism have the same structure and comprise a first piezoelectric driver, a first force transmission gasket, a first guiding static cylinder, a first guiding moving cylinder and a first supporting spring; the first guide static cylinder is vertically and fixedly arranged on the upper end face of the sliding block through a mounting hole on the sliding block, the lower end of the first guide movable cylinder is inserted into the first guide static cylinder, and the first guide movable cylinder has linear movement freedom degree relative to the first guide static cylinder; the upper end of the first guide movable cylinder is connected with the lower end surface of the tool holder support plate through a universal ball head structure; the first piezoelectric driver is fixedly arranged at the bottommost end of the first guide static cylinder, and the first force transmission gasket is arranged on the first piezoelectric driver; the first supporting spring is vertically arranged in the first guide static cylinder and the first guide dynamic cylinder, the lower end of the first supporting spring is in abutting contact with the first force transmission gasket, and the upper end of the first supporting spring is in abutting contact with the universal ball head structure; the control end of the first piezoelectric driver is connected with a machine tool control system; the number of the front pitching driving mechanisms is two, and the two front pitching driving mechanisms are symmetrically distributed on two sides of the sliding rail; the number of the back pitching driving mechanisms is two, and the two back pitching driving mechanisms are symmetrically distributed on two sides of the sliding rail; the telescopic driving mechanism comprises a second piezoelectric driver, a second force transmission gasket, a second guiding static cylinder, a second guiding moving cylinder and a second supporting spring; the second guide static cylinder is horizontally and fixedly arranged on the inner side surface of the rear baffle plate through a mounting hole on the rear baffle plate, one end of the second guide movable cylinder is inserted into the second guide static cylinder, and the other end of the second guide movable cylinder is fixedly connected with the sliding block; the second piezoelectric driver is fixedly arranged at the rightmost end of the second guide static cylinder, and the second force transmission gasket is close to the second piezoelectric driver; the second supporting spring is horizontally arranged in the second guide static cylinder and the second guide dynamic cylinder, one end of the second supporting spring is in abutting contact with the second force transmission gasket, and the other end of the second supporting spring is in abutting contact with the sliding block; and the control end of the second piezoelectric driver is connected with a machine tool control system.
2. A single crystal material cutting adaptive trim blade holder as defined in claim 1, wherein: the telescopic balancing mechanism comprises a third guiding static cylinder, a third guiding moving cylinder and a third supporting spring; one end of the third guiding static cylinder is fixedly connected with the front baffle, one end of the third guiding movable cylinder is inserted into the third guiding static cylinder, and the other end of the third guiding movable cylinder is fixedly connected with the sliding block; the third supporting spring is horizontally arranged in the third guide static cylinder and the third guide moving cylinder, one end of the third supporting spring is in abutting contact with the front baffle, and the other end of the third supporting spring is in abutting contact with the sliding block.
3. A single crystal material cutting method employing the single crystal material cutting adaptive trimming blade holder of claim 1, characterized by comprising the steps of:
step one: presetting the surface roughness of the processed monocrystalline material, and determining the average cutting force required when the surface roughness is met by using molecular dynamics simulation software;
step two: a database is established in a machine tool control system and is used for storing the average cutting force data acquired in the first step, the database also stores the optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth, and each group of optimal combination data of the cutting tool machining front angle and the cutting tool cutting depth is matched with a group of corresponding average cutting force data;
step three: starting cutting, feeding the actual cutting force data back to a machine tool control system through a piezoelectric driver, comparing the actual cutting force data with average cutting force data stored in a database by the machine tool control system, and selecting a group of average cutting force data corresponding to the actual cutting force data;
step four: further calling out optimal combination data of the cutter machining rake angle and the cutter cutting depth matched with the set of average cutting force data according to the set of average cutting force data selected by the machine tool control system;
step five: and the machine tool control system sends a control signal to the piezoelectric driver according to the called optimal combination data of the cutter machining front angle and the cutter cutting depth, the cutter machining front angle is finely adjusted through the cutter machining front angle adjusting assembly, and the cutter cutting depth is finely adjusted through the cutter cutting depth adjusting assembly until the actual combination data of the cutter machining front angle and the cutter cutting depth are consistent with the optimal combination data in the database.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810308949.6A CN108274647B (en) | 2018-04-09 | 2018-04-09 | Self-adaptive trimming tool rest for cutting monocrystalline material and cutting method |
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| CN201810308949.6A CN108274647B (en) | 2018-04-09 | 2018-04-09 | Self-adaptive trimming tool rest for cutting monocrystalline material and cutting method |
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| CN108274647B true CN108274647B (en) | 2023-07-04 |
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| CN101474831A (en) * | 2009-01-21 | 2009-07-08 | 哈尔滨工业大学 | Tool holder device of adjustable type diamond knife tool |
| CN102120344A (en) * | 2010-12-21 | 2011-07-13 | 沈阳航空航天大学 | Single-crystal material cutting method based on fluctuation characteristic of cutting force and fine tuning tool rest |
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| CN101474831A (en) * | 2009-01-21 | 2009-07-08 | 哈尔滨工业大学 | Tool holder device of adjustable type diamond knife tool |
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| CN202540008U (en) * | 2012-04-09 | 2012-11-21 | 赵宏伟 | Cutter servo compensating drive device for micro-nano scale cutting |
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