CN112548692B - Micro-feeding device for uniformly removing tool tip material of arc-edge diamond tool - Google Patents
Micro-feeding device for uniformly removing tool tip material of arc-edge diamond tool Download PDFInfo
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- CN112548692B CN112548692B CN202011442853.2A CN202011442853A CN112548692B CN 112548692 B CN112548692 B CN 112548692B CN 202011442853 A CN202011442853 A CN 202011442853A CN 112548692 B CN112548692 B CN 112548692B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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Abstract
A micro-feeding device for uniformly removing tool tip materials of a circular-arc-edge diamond tool belongs to the technical field of ultra-precise manufacturing equipment. The invention provides a uniform removing device for a tool tip material of an arc-edge diamond tool based on a high-precision feeding workbench, which has high precision and is simple and convenient to operate. The invention comprises a hydrostatic pressure turntable component, a micro-feeding component, a rough-feeding component, a tool rest and a machine tool base; the tool rest is arranged on a micro-feeding part, the micro-feeding part is arranged on a rough-feeding part, the rough-feeding part is arranged on a hydrostatic pressure rotary table part, and the hydrostatic pressure rotary table part is fixed on the upper surface of the machine tool base. The invention can control the micro-feeding component to reduce the feeding amount so as to reduce the grinding pressure, and can control the micro-feeding component to increase the feeding amount so as to increase the grinding pressure, thereby realizing that the arc material of the tool tip is uniformly removed all the time in the grinding process of the diamond tool, thus improving the waviness of the arc edge and obtaining the diamond tool with higher quality.
Description
Technical Field
The invention belongs to the technical field of ultra-precision manufacturing equipment, and relates to a micro-feeding device for a diamond cutter.
Background
The ultra-precision processing technology originates from the end of the fifties and the beginning of the sixties of the last century, is applied more and more widely along with the continuous progress of the technology and the requirements of industries such as aerospace, computers and the like, and plays a very important role in the manufacturing field of military and high-end civil products. Such as the reflector of a large astronomical telescope, an air bearing for a precision gyroscope of an inertial navigation instrument, large-scale integrated circuit manufacturing equipment, a polygon mirror for a laser printer, a scanning mirror of a high-speed camera, and the like, require ultra-precision machining.
The ultra-precision cutting technology is an important part of the ultra-precision machining technology, and the technical indexes of the ultra-precision cutting technology mainly include the surface roughness and the surface shape precision of a workpiece. To obtain a satisfactory workpiece, the following conditions must be met: ultra-precision machining tools, high precision and high sensitivity inspection equipment, very stable external machining environment, and high precision tools that make contact with the workpiece. The diamond cutter is widely applied to the occasion of ultra-precision cutting, and the processing process of the diamond cutter follows an error copying principle, namely, the motion error of a machine tool, the change of external environment (noise, vibration and temperature change) and the shape error of the cutter are copied on the surface of a workpiece in a cutting residual mode, so that the processing quality of the workpiece is influenced. Therefore, the high-quality diamond cutter is an important guarantee for the development of ultra-precise cutting work.
The parameters of the arc-edge diamond cutter are various, wherein the most accepted evaluation parameters at present comprise the cutting edge obtuse circle radius, the circular arc roundness of a cutter tip and the surface roughness of the front cutter surface and the rear cutter surface. The obtuse circle radius of the cutting edge is also the sharpness of the cutter, so that the machining precision of a workpiece is influenced, and the minimum cutting depth is also determined; the roundness of the arc of the tool nose directly influences the surface shape precision of the workpiece; the roughness of the front and back tool faces determines the friction force between the tool and the workpiece when the tool works, and is an important influence factor of the service life of the tool. The existing method for machining the diamond cutter has a plurality of aspects such as comprehensive cost, efficiency, difficulty and easiness in machining, precision and the like, and the mechanical grinding method still has absolute advantages. In order to process the diamond cutter with the arc-shaped edge, wherein the obtuse circular radius of the cutting edge is small, and the circular degree of the arc of the cutter tip is small, the cutting edge cannot bear large impact in the grinding process, and materials on the arc of the cutter tip are uniformly removed, so that the slow and uniform grinding process of the cutting edge is ensured as much as possible. Due to the anisotropy of the diamond material, the material removal rate of the diamond cutter in different grinding directions is different, and at present, no proper device is available for realizing the operation process, and the micro-removal of the blade material can be ensured only through the whole tiny feed amount, so that the uniformity of grinding the blade can not be realized, and the grinding efficiency is low. In view of the above, it is necessary to develop a new device to achieve uniform removal of the tip material of the circular-arc-edge diamond tool.
Disclosure of Invention
The invention aims to solve the problem that no device for uniformly removing a tool tip arc material in a diamond tool grinding process exists so far, and provides a device for uniformly removing the tool tip arc material of an arc-shaped blade diamond tool based on a high-precision feeding workbench, which has high precision and is simple and convenient to operate.
In order to achieve the purpose, the invention adopts the technical scheme that: a micro-feeding device for uniformly removing tool tip materials of a circular-arc-edge diamond tool comprises a hydrostatic pressure rotary table part, a micro-feeding part, a rough-feeding part, a tool rest and a machine tool base; the tool rest is arranged on a micro-feeding part, the micro-feeding part is arranged on a rough-feeding part, the rough-feeding part is arranged on a hydrostatic pressure rotary table part, and the hydrostatic pressure rotary table part is fixed on the upper surface of a machine tool base.
The invention has the beneficial effects that:
1. according to the invention, through the hydrostatic pressure rotary table part, the micro-feeding part and the rough-feeding part, the problem that no device can uniformly remove the arc material of the tool tip in the high-precision grinding process of the diamond tool is effectively solved, and the uniform removal operation of the arc material of the tool tip of the tool can be simply and conveniently carried out.
2. The micro-feeding component has straightness error less than 60nm, positioning error less than 30nm and resolution less than 2nm, can realize high-precision cutter positioning and extremely small cutter feeding amount,
3. the hydrostatic pressure rotary table has axial and radial rotation errors smaller than 0.1 mu m, and can realize stable high-precision rotation motion at low speed.
4. Because the removal rate of the material per unit time of the diamond tool is related to the grinding direction, the better the grinding direction, the greater the removal rate of the material per unit time, and the total removal amount per unit time is proportional to the product of the removal rate of the material per unit time and the grinding pressure. In the grinding process of diamond cutter circular arc sword, when getting rid of and grind the direction material, thereby can control to advance the part a little and reduce the feed volume and reduce grinding pressure, when getting rid of difficult mill direction material, thereby can control to advance the part a little and increase feed volume and increase grinding pressure, and then realize diamond cutter grinding process, knife tip circular arc material is evenly got rid of all the time, so can improve the waviness of circular arc sword, obtains the diamond cutter that the quality is higher.
Drawings
Fig. 1 is a three-dimensional perspective view of the general structure of the present invention, and the direction indicated by the arrow in fig. 1 is the feeding direction of the diamond tool when the machine tool is in operation;
FIG. 2 is an overall front view of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a front cross-sectional view of a hydrostatic turret section;
FIG. 5 is a top view structural view of a micro-feeding unit;
FIG. 6 is a front cross-sectional view of the rough-feed component;
FIG. 7 is a schematic view of a rail seat and rail installation;
FIG. 8 is a schematic view of the mounting of the traveling block;
FIG. 9 is a schematic view of the installation of the dust guard;
in the figure: 1. a hydrostatic turret section; 1-1, a turntable base; 1-2, a shell; 1-3, sealing rings; 1-4, a working table; 1-5, a radial bearing stator; 1-6, bearing rotating shaft; 1-7, circular grating; 1-8, reading head; 1-9, a reading head bracket; 1-10, a turntable motor; 1-11, a restrictor; 1-12, axial bearing thrust plate; 2. a micro-feeding part; 2-1, a flexible hinge; 2-2, piezoelectric ceramics; 2-3, rigid support frame; 3. a rough feeding part; 3-1, a base baffle; 3-2, a screw bearing; 3-3, feeding a lead screw; 3-4, a guide rail; 3-5, moving blocks; 3-6, guide rail seats; 3-7, translating the table top; 3-8, feeding a nut; 3-9, a translation table base; 3-10 parts of dust-proof plate; 3-11, bearing support; 3-12, a coupler; 3-13, a feed motor; 3-14, motor housing; 4. a tool holder; 5. a machine tool base.
Detailed Description
As shown in fig. 1 to 6, the micro-feeding device for uniformly removing the tool tip material of the arc-edge diamond tool comprises a hydrostatic pressure rotary table component 1, a micro-feeding component 2, a rough-feeding component 3, a tool rest 4 and a machine tool base 5; the tool rest 4 is arranged on a micro-feeding part 2, the micro-feeding part 2 is arranged on a rough-feeding part 3, the rough-feeding part 3 is arranged on a hydrostatic pressure rotary table part 1, and the hydrostatic pressure rotary table part 1 is fixed on the upper surface of a machine tool base 5.
As shown in fig. 5, the micro-feeding part 2 comprises a flexible hinge 2-1, a piezoelectric ceramic 2-2 and a rigid support frame 2-3; the flexible hinge 2-1 and the rigid support frame 2-3 are of an integral structure, the left side face of the piezoelectric ceramic 2-2 is fixedly connected with the right side face of the flexible hinge 2-1, the right side face of the piezoelectric ceramic 2-2 is fixedly connected with the inner surface of the rigid support frame 2-3, and the knife rest 4 is fixedly mounted on the upper surface of the flexible hinge 2-1.
The micro-feeding component 2 can convert the micro-expansion and contraction quantity of the piezoelectric ceramic 2-2 into the micro-movement quantity of the micro-feeding component 2, and can realize ultra-high precision feeding.
As shown in fig. 6-9, the rough feeding part 3 comprises a feed screw 3-3, a moving block 3-5, a translation table top 3-7, a feed nut 3-8, a coupler 3-12 and a feed motor 3-13; the feeding motor 3-13 is coaxially connected with the feeding screw rod 3-3 through a coupler 3-12 and drives the feeding screw rod 3-3 to rotate, a feeding nut 3-8 is sleeved on the feeding screw rod 3-3 in a threaded mode and drives the feeding nut 3-8 to move along the feeding screw rod 3-3, the feeding nut 3-8 is connected with the translation table board 3-7 through a moving block 3-5, and the translation table board 3-7 is used for installing the micro-feeding component 2.
The rough feeding part 3 also comprises a base baffle 3-1, a guide rail 3-4, a translation table base 3-9, a dust guard 3-10 and a motor shell 3-14; and a dustproof plate 3-10 and a translation platform base 3-9 which are arranged up and down are fixed between the motor shell 3-14 and the base baffle 3-1, and the dustproof plate 3-10 penetrates through a gap between the translation platform surface 3-7 and the moving block 3-5.
The rough feeding component 3 also comprises two lead screw bearings 3-2; the feeding motor 3-13 is arranged on the inner surface of the motor shell 3-14, one end of the feeding screw rod 3-3 is nested in the base baffle 3-1 through a screw rod bearing 3-2, and the other end of the feeding screw rod 3-3 is nested in a bearing support 3-11 in the motor shell 3-14 through another screw rod bearing 3-2.
As shown in fig. 7, the rough feeding part 3 further comprises a guide rail seat 3-6; the moving block 3-5 is arranged on the two guide rails 3-4 through the guide rail seats 3-6, the grooves at the bottoms of the guide rail seats 3-6 are clamped on the two guide rails 3-4, and the two guide rails 3-4 are arranged on the upper surface of the translation table base 3-9 in parallel.
The rough feeding part 3 can convert the rotary motion of a motor into the linear motion of a translation table top through a screw-nut pair structure, is suitable for the feeding motion with higher precision, the rough feeding part 10 is relatively slightly fed to the part 9, the precision is lower but the measuring range is larger, and the feeding motion of a cutter can be better controlled through the control mode of combining rough feeding and fine feeding.
As shown in fig. 4, the hydrostatic pressure rotary table part 1 comprises a rotary table base 1-1, a working table surface 1-4, a radial bearing stator 1-5, a bearing rotating shaft 1-6 and a rotary table motor 1-10; the outer circle surface of the turntable motor 1-10 and the inner circle surface of the turntable base 1-1 are arranged in an interference manner, the turntable motor 1-10 is sleeved on the bearing rotating shaft 1-6 to drive the bearing rotating shaft 1-6 to rotate, the top surface of the bearing rotating shaft 1-6 is provided with a working table surface 1-4 for installing the rough feeding part 3, the radial bearing stator 1-5 is sleeved on the outer circle surface of the bearing rotating shaft 1-6 to support the bearing rotating shaft 1-6 and is placed on the top surface of the turntable base 1-1,
the hydrostatic pressure rotary table component 1 further comprises throttles 1-11, concave oil grooves are formed in the upper surface, the lower surface and the inner circular surface of the radial bearing stators 1-5, a throttling hole is formed in the center of each oil groove, the throttles 1-11 are embedded in each throttling hole, and the upper surfaces of the throttles 1-11 and the inner surfaces of the oil grooves are located on the same plane.
The hydrostatic pressure rotary table component 1 also comprises a shell 1-2, a sealing ring 1-3 and an axial bearing thrust plate 1-12; the shell 1-2 is sleeved on the outer side of the radial bearing stator 1-5, a sealing ring 1-3 is arranged between the shell 1-2 and the radial bearing stator 1-5, the lower end of the shell 1-2 is sleeved on the outer side of the turntable base 1-1, the upper end of the shell 1-2 is inserted into the concave-convex gap on the bottom surface of the working table 1-4, and the axial bearing thrust plate 1-12 is sleeved on the bearing rotating shaft 1-6 and is arranged below the radial bearing stator 1-5.
The hydrostatic pressure rotary table part 1 also comprises circular gratings 1-7, reading heads 1-8 and reading head supports 1-9; the circular grating 1-7 is sleeved on the bearing rotating shaft 1-6, and the reading head 1-8 is arranged close to the circular grating 1-7 and is arranged on the rotary table base 1-1 through a reading head support 1-9.
The circular grating 1-7 is used for detecting the rotating position information of the rotary table, and the reading head 1-8 is used for reading the position of the circular grating 1-7, generating a feedback signal and transmitting the feedback signal to a control system of the rotary table. The circular grating 1-7 assembly is used for realizing closed-loop control of the rotary table.
When the hydrostatic pressure rotary table part 1 works, the working table surface 1-4 floats under the action of hydraulic oil and rotates along with the bearing rotating shaft 1-6 under the drive of the motor 1-10.
The bearing of the hydrostatic pressure rotary table component 1 is not worn during working, the rotation precision of the component can be improved by the error homogenization action of an oil film, in addition, the problem that a mechanical transmission system has reverse clearance is fundamentally solved by the driving mode of direct drive of the motor, the precision of the component is further improved, and the response speed of the system can be accelerated by the driving mode, so that the micro-feeding device is suitable for uniformly removing the tool tip material of the arc-edge diamond tool with higher requirements on the precision and the response speed of the rotary table.
The working mode is as follows: when the rapid feeding, rapid retracting or rough machining feeding operation of the diamond cutter is carried out, the feeding motor 3-13 of the rough feeding part 3 is controlled to drive the feeding screw rod 3-3 to rotate, the rotary motion of the feeding motor 3-13 is converted into the linear motion of the feeding nut 3-8 through the screw rod nut transmission pair, the translation table board 3-7 follows the moving block 3-5 and is driven by the feeding nut 3-8 to do high-precision linear motion, and therefore the micro-feeding part 2 on the translation table board 3-7 drives the cutter rest 4 to do linear motion; when the arc radius of the tool nose of the diamond tool is finely machined, higher feeding precision is needed, the translation table top 3-7 of the rough feeding part 3 is fixed at the moment, the piezoelectric ceramics 2-2 of the micro feeding part 2 is controlled to stretch and contract, so that the flexible hinge 2-1 in contact with the piezoelectric ceramics is slightly deformed, and the tool rest 4 is driven to move to realize the micro feeding of the diamond tool; in the whole process of grinding the diamond cutter, the working table surface 1-4 of the hydrostatic pressure rotary table part 1 always rotates with high precision, so that the part on the working table surface 1-4 is driven to swing with high precision, when the tool tip arc material in the direction difficult to grind is removed, the micro-feeding amount is properly increased, and when the tool tip arc material in the direction good to grind is removed, the micro-feeding amount is properly reduced, so that the tool tip material of the diamond cutter with the arc edge can be uniformly removed, and the waviness of the arc edge of the cutter is reduced.
The diameter of an inner hole of a restrictor 1-11 of the hydrostatic pressure rotary table component 1 is 0.2-0.5mm, and the clearance between a radial bearing stator 11-5 and a bearing rotating shaft 11-6 and the clearance between an axial bearing thrust plate 11-12, a rotary table top 11-4 and the radial bearing stator 11-5 are both 20-30 mu m.
The stroke of the coarse feeding component 3 is 80-120mm, and the stroke of the micro feeding component 2 is 50-80 μm.
The working principle is as follows:
according to the micro-feeding device for uniformly removing the tool tip material of the arc-edge diamond tool, when the operations of fast feeding, fast retracting or rough machining feeding of the diamond tool are carried out, the working table surface of the rough feeding part 3 is controlled to drive the micro-feeding part 2 to move; when the circular arc radius of the tool nose of the diamond tool is finely machined, the working table top of the rough feeding component 3 is fixed, and the piezoelectric ceramic of the micro feeding component 2 is controlled to stretch and drive the flexible hinge to realize micro feeding of the tool. When the diamond cutter is used for grinding, the removal amount of the material in unit time is in direct proportion to grinding pressure and the removal rate of the material in unit time, and the calculation formula is as shown in the formula I:
Dv∝P•△M
where Dv is the amount of material removed per unit time; p is grinding pressure; Δ M-removal rate of material per unit time.
From the first formula, it can be seen that since Δ M varies continuously according to the tangential direction of each point on the circular arc of the tool, if the material removal Dv is to be the same in a unit time when different surfaces are ground, the grinding pressure P can be changed according to a trend opposite to Δ M. Grinding pressure P in the diamond cutter grinding process is increased along with the increase of the feed amount, therefore, in the grinding process of the diamond cutter arc edge, when directional materials are well ground, the micro-feeding part can be controlled to reduce the feed amount, thereby reducing the grinding pressure, when the directional materials which are difficult to grind are removed, the micro-feeding part can be controlled to increase the feed amount, thereby increasing the grinding pressure, further, the grinding process of the diamond cutter is realized, the arc materials of the tool nose are uniformly removed all the time, so the waviness of the arc edge can be improved, and the diamond cutter with higher quality is obtained.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a little feeding device is evenly got rid of to circular arc sword diamond tool knife tip material which characterized in that: the device comprises a hydrostatic pressure rotary table part (1), a micro-feeding part (2), a rough-feeding part (3), a tool rest (4) and a machine tool base (5); the tool rest (4) is installed on the micro-feeding part (2), the micro-feeding part (2) is installed on the rough-feeding part (3), the rough-feeding part (3) is installed on the hydrostatic pressure rotary table part (1), the hydrostatic pressure rotary table part (1) is fixed on the upper surface of a machine tool base (5), when materials in a good grinding direction are removed, the micro-feeding part (2) is controlled to reduce feeding amount so as to reduce grinding pressure, when materials in a direction difficult to grind are removed, the micro-feeding part (2) is controlled to increase feeding amount so as to increase grinding pressure, further, in the grinding process of the diamond tool, arc materials of a tool nose are uniformly removed all the time, the waviness of arc edges can be improved, and the diamond tool with higher quality is obtained.
2. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 1, characterized in that: the micro-feeding part (2) comprises a flexible hinge (2-1), piezoelectric ceramics (2-2) and a rigid support frame (2-3); the flexible hinge (2-1) and the rigid support frame (2-3) are of an integral structure, the left side face of the piezoelectric ceramic (2-2) is fixedly connected with the right side face of the flexible hinge (2-1), the right side face of the piezoelectric ceramic (2-2) is fixedly connected with the inner surface of the rigid support frame (2-3), and the knife rest (4) is fixedly installed on the upper surface of the flexible hinge (2-1).
3. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 1 or 2, characterized in that: the rough feeding part (3) comprises a feed screw (3-3), a moving block (3-5), a translation table top (3-7), a feed nut (3-8), a coupler (3-12) and a feed motor (3-13); the feeding motor (3-13) is coaxially connected with the feeding screw (3-3) through a coupler (3-12) and drives the feeding screw (3-3) to rotate, a feeding nut (3-8) is sleeved on the feeding screw (3-3) in a threaded manner and drives the feeding nut (3-8) to move along the feeding screw (3-3), the feeding nut (3-8) is connected with the translation table board (3-7) through a moving block (3-5), and the translation table board (3-7) is used for mounting the micro feeding component (2).
4. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 3, characterized in that: the rough feeding part (3) further comprises a base baffle (3-1), a guide rail (3-4), a translation table base (3-9), a dust guard (3-10) and a motor shell (3-14); a dustproof plate (3-10) and a translation platform base (3-9) which are arranged up and down are fixed between the motor shell (3-14) and the base baffle (3-1), and the dustproof plate (3-10) penetrates through a gap which is formed between the translation platform surface (3-7) and the moving block (3-5).
5. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 4, characterized in that: the rough feeding component (3) also comprises two lead screw bearings (3-2); the feeding motor (3-13) is installed on the inner surface of the motor shell (3-14), one end of the feeding screw rod (3-3) is embedded in the base baffle plate (3-1) through a screw rod bearing (3-2), and the other end of the feeding screw rod (3-3) is embedded in a bearing support (3-11) in the motor shell (3-14) through another screw rod bearing (3-2).
6. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 5, characterized in that: the rough feeding part (3) also comprises a guide rail seat (3-6); the moving block (3-5) is arranged on two guide rails (3-4) through guide rail seats (3-6) and slideways, and the two guide rails (3-4) are arranged on the upper surface of the translation table base (3-9) in parallel.
7. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 6, characterized in that: the hydrostatic pressure rotary table part (1) comprises a rotary table base (1-1), a working table top (1-4), a radial bearing stator (1-5), a bearing rotating shaft (1-6) and a rotary table motor (1-10); the outer circle surface of the rotary table motor (1-10) and the inner circle surface of the rotary table base (1-1) are installed in an interference mode, the rotary table motor (1-10) is sleeved on the bearing rotating shaft (1-6) to drive the bearing rotating shaft (1-6) to rotate, a working table surface (1-4) used for installing the coarse feeding component (3) is installed on the top surface of the bearing rotating shaft (1-6), and the radial bearing stator (1-5) is sleeved on the outer circle surface of the bearing rotating shaft (1-6) to support the bearing rotating shaft (1-6) and is placed on the top surface of the rotary table base (1-1).
8. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 7, characterized in that: the hydrostatic pressure rotary table component (1) further comprises throttles (1-11), concave oil grooves are formed in the upper surface, the lower surface and the inner circular surface of the radial bearing stator (1-5), a throttling hole is formed in the center of each oil groove, one throttler (1-11) is embedded in each throttling hole, and the upper surface of each throttler (1-11) and the inner surface of each oil groove are located on the same plane.
9. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 8, characterized in that: the hydrostatic pressure rotary table part (1) further comprises a shell (1-2), a sealing ring (1-3) and an axial bearing thrust plate (1-12); the shell (1-2) is sleeved on the outer side of the radial bearing stator (1-5), a sealing ring (1-3) is arranged between the shell (1-2) and the radial bearing stator (1-5), the lower end of the shell (1-2) is sleeved on the outer side of the rotary table base (1-1), the upper end of the shell (1-2) is inserted into the concave-convex clearance on the bottom surface of the working table top (1-4), and the axial bearing thrust plate (1-12) is sleeved on the bearing rotating shaft (1-6) and is arranged below the radial bearing stator (1-5).
10. The micro-feeding device for uniformly removing the tip material of the circular-arc-edge diamond cutter according to claim 9, characterized in that: the hydrostatic pressure rotary table part (1) also comprises a circular grating (1-7), a reading head (1-8) and a reading head bracket (1-9); the round grating (1-7) is sleeved on the bearing rotating shaft (1-6), and the reading head (1-8) is arranged close to the round grating (1-7) and is installed on the turntable base (1-1) through the reading head support (1-9).
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| CN105196116A (en) * | 2015-08-18 | 2015-12-30 | 哈尔滨工业大学 | High-precision mechanical grinding method for diamond glass type pressing head |
| CN110757263A (en) * | 2019-11-07 | 2020-02-07 | 中国工程物理研究院机械制造工艺研究所 | Mechanical grinding method-based micro-opening control method for micro-arc-edge diamond cutter |
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