CN210999512U - Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool - Google Patents

Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool Download PDF

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Publication number
CN210999512U
CN210999512U CN201921954881.5U CN201921954881U CN210999512U CN 210999512 U CN210999512 U CN 210999512U CN 201921954881 U CN201921954881 U CN 201921954881U CN 210999512 U CN210999512 U CN 210999512U
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axis
fly
machine tool
feeding
precise
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阳红
刘有海
张敏
戴晓静
孙守利
宋珂炜
尹承真
杨光伟
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Institute of Machinery Manufacturing Technology China Academy of Engineering Physics
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Institute of Machinery Manufacturing Technology China Academy of Engineering Physics
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Abstract

The utility model discloses a miniature ultra-precise single point diamond of desktop formula flies to cut lathe, including lathe vibration isolation system and set up lathe bed, X axle feed system, measurement system, main shaft system, work piece clamping system and the Z axle feed system on lathe vibration isolation system, X axle feed system and Z axle feed system install on the lathe bed, become the T type and arrange, and X axle feed system central line and Z axle feed system central line are separated by 30mm, and the complete machine size is 500mm 620mm 500 mm. The main shaft system adjusts the pose through a main shaft positioning block and a main shaft installation block and is installed on an object stage of the X-axis feeding system. The spindle box is provided with the laser displacement sensor, so that the real-time processing amount of the fly cutting machine can be measured. The utility model discloses a reduce the lathe size dimension, the effectual not enough of having overcome the tradition and flying to cut the lathe of innovation lathe design, greatly avoided introducing of error source, improved the machining precision of lathe.

Description

Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool
Technical Field
The utility model relates to an ultra-precision cutting process technical field, concretely relates to miniature ultra-precision single-point diamond of desktop formula flies to cut lathe.
Background
The ultra-precision cutting machining technology is an advanced manufacturing technology developed from the last century, and the machining precision of parts depends on the precision of an ultra-precision machine tool. The ultra-precision machining technology comprehensively utilizes advanced technological achievements in the fields of measurement, servo control, optics, environmental control, sensing, hydraulic pressure and the like.
Potassium dihydrogen phosphate crystal (KH2PO4), KDP crystal for short, is a typical piezoelectric crystal, is widely applied to equipment and instruments at the high-end front edge such as key optical elements in optical path systems such as sonar systems, laser inertial confinement nuclear fusion devices, large solid lasers and the like, and has an important strategic position. Meanwhile, the KDP crystal is also an important piezoelectric transducer material in the civil field, and the market is wide. However, the crystal has a series of unfavorable processing material characteristics of soft material, easy deliquescence, high brittleness, anisotropy, sensitivity to temperature change, easy cracking and the like, so that the KDP crystal with the large caliber is recognized as one of the most difficult laser optical elements by the international optical industry. When the traditional grinding and polishing method is adopted for processing, abrasive particles are easily embedded, and the quality of the processed surface of the abrasive particles is reduced. The single point diamond fly cutting (SPDT) process is the currently internationally recognized most ideal processing mode for KDP crystals.
At present, the ultraprecise single-point diamond fly-cutting machine tool has the problems of large size, high cost, large occupied area, serious power consumption, severe requirement on the use environment, difficulty in maintenance and the like. Meanwhile, due to the absence of the in-place measuring system, the workpiece is taken down to measure the machining error every time the workpiece is machined, so that the machining time of the workpiece is seriously prolonged, and the clamping error of the workpiece is also introduced. The structure of the existing fly-cutting machine tool mostly adopts a vertical fly-cutting structure, the structural form is heavy and complicated, and more error interference sources exist, so that the precision improvement of the fly-cutting machining process is greatly restricted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a miniature ultra-precise single-point diamond fly cutting machine bed of desktop formula solves clamping error, the longer problem consuming time that prior art leads to, has simple structure compactness, the little advantage of size simultaneously.
The utility model discloses a following technical scheme realizes:
a desktop type miniature ultra-precise single-point diamond fly-cutting machine tool comprises a vibration isolation system, a tool body, an X-axis feeding system, an in-place measuring system, a main shaft system, a workpiece clamping system and a Z-axis feeding system;
the X-axis feeding system and the Z-axis feeding system are respectively used for realizing displacement adjustment in the X-axis direction and the Z-axis direction, and the X-axis feeding system and the Z-axis feeding system are both used for carrying out displacement adjustment through a linear motor and a grating ruler;
the spindle system comprises a spindle box, the spindle box is mounted on an X-axis object carrying table of an X-axis feeding system, an air-floating spindle is arranged on the spindle box, a fly-cutting cutter disc is arranged at one end of the air-floating spindle, and the fly-cutting cutter disc is used for fixing a single-point diamond fly-cutting cutter;
the on-site measurement system comprises a laser displacement sensor, and the laser displacement sensor is arranged on the spindle box;
the workpiece clamping system is arranged on a Z-axis object carrying table of the Z-axis feeding system and used for mounting workpieces.
Laser displacement sensor is prior art.
The working principle of the utility model is as follows:
the air-floating main shaft adopts a multi-air-floating support, the permanent magnet synchronous motor drives the fly cutter disc to rotate, the X-axis feeding system and the Z-axis feeding system both adopt a composite throttling magnetic preloading support mode, and a linear motor and a grating ruler form closed-loop drive to complete X-direction linear motion; the workpiece frame is located on the Z-axis object carrying platform to complete Z-direction linear motion; the cutting feeding is completed through the linkage and the matching of the X-axis object carrying table and the Z-axis object carrying table.
Compared with the traditional ultraprecise single-point diamond fly-cutting machine tool, the desktop type miniaturized fly-cutting machine tool is easier to maintain and maintain by virtue of the advantages of small occupied area, low manufacturing difficulty, low power consumption and the like. In addition, the miniaturization of the ultra-precision cutting machine tool can ensure the manufacturing precision and the assembly precision of key parts more easily, greatly improve the self-excitation frequency of the machine tool and reduce the influence of the temperature change of a foundation and an external processing environment on the processing precision of the machine tool. Meanwhile, due to the introduction of an in-situ measurement system, the machining efficiency of the precision component is effectively improved, and the workpiece clamping error is reduced. The utility model discloses in, also effectively avoided the interference source that exists in the traditional lathe through innovative design such as innovative drive mode, increase vibration isolation system design, reduced the reliance to the ground, greatly improved the machining precision.
The utility model discloses not only make work piece clamping location accurate, it is steady to feed the process, and the implementation of accessible laser displacement sensor real-time detection fly-cutting technology, laser displacement sensor transmits real-time detection's data for the host computer through its external control system, the standard size of data and work piece that the host computer compares the detection, linear electric motor's speed in time revises the machining dimension when feeding next time through the difference control of comparison, in the lathe processing field, be prior art through host computer control linear electric motor, the clamping error that work piece measuring error leads to has been avoided taking out, consuming time longer problem, thereby improve the machining precision. The linear motor can accurately control the contact point between the fly cutter and the workpiece, and the machining precision can be further effectively improved. The feeding amount of the flying cutter can be controlled more accurately by adopting the grating ruler for positioning, and the processing precision is further ensured. The air-floating guide rail is arranged, so that friction-free and vibration-free smooth movement can be realized, higher guiding precision can be obtained, and the machining precision of the workpiece can be indirectly improved.
Furthermore, the X-axis feeding system comprises an X-axis linear motor, an X-axis grating ruler, an X-axis air-floating guide rail, an X-axis object carrying table, an X-axis baffle and an X organ cover;
the X-axis linear motor is installed on an X-axis air-floating guide rail, the X-axis object carrying table is installed on the X-axis linear motor, the X-axis grating ruler is installed on the X-axis object carrying table, an X organ cover is arranged above the X-axis air-floating guide rail, and an X-axis baffle is arranged on the part of the X organ cover in a matched mode.
Furthermore, the Z-axis feeding system comprises a Z-axis baffle, a Z organ cover, a Z-axis object carrying table, a Z-axis grating ruler, a Z-axis linear motor and a Z-axis air-floating guide rail;
the Z-axis linear motor is installed on a Z-axis air-floating guide rail, the Z-axis object carrying platform is installed on the Z-axis linear motor, the Z-axis grating ruler is installed on the Z-axis object carrying platform, a Z organ cover is arranged above the Z-axis air-floating guide rail, and a Z-axis baffle is arranged at the end of the Z organ cover in a matched mode.
Furthermore, the vibration isolation system comprises a supporting steel frame, a thin film type gas spring, an automatic leveling valve, a ground foot and a moving wheel;
the thin film type gas spring and the automatic leveling valve are both arranged at the top of the supporting steel frame and used for supporting the lathe bed, and the ground feet and the moving wheels are arranged at the bottom of the supporting steel frame.
The ground feet can be firstly roughly leveled after the machine tool is installed and debugged, and the design of the movable wheels is beneficial to the transfer and transportation of the machine tool.
The film type gas spring can isolate external vibration interference through the inflation and deflation of a gas chamber of the gas spring; the automatic leveling valve controls the height of the spring body by varying the pressure in the vibration isolation system arrangement; even if the center of gravity changes, the machine can be kept in a horizontal state by rapid inflation and deflation; the gas spring and the leveling valve are both connected to the vibration isolation system controller to form a control loop.
The lathe bed is formed by processing marble, a wiring pipe is arranged in the lathe bed and led out from the lower part of the lathe bed, and the interference of a control line and the disordered air pipe to the movement precision of the lathe bed is avoided.
Further, the spindle system comprises a spindle box, and the spindle box is mounted on the X-axis object carrying table through a spindle positioning block and a spindle positioning adjusting block of a spindle positioning block.
Further, the center of the flying cutter head is installed on the air floatation main shaft through a bearing, a cutter positioning block is installed on the side wall of the flying cutter head, a cutter fixing frame is installed on the cutter positioning block, and a coarse adjusting nut and a fine adjusting nut are respectively arranged on the cutter positioning block and the cutter fixing frame.
The single-point diamond fly-cutting cutter is fixed on the fly-cutting cutter disc through a cutter positioning block and a cutter fixing frame and rotates along with the fly-cutting cutter disc so as to cut a workpiece; the fine adjustment nut and the coarse adjustment nut are used for finishing the pose adjustment of the single-point diamond fly-cutting tool.
Further, the workpiece clamping system comprises a workpiece frame and a 3R clamp, the workpiece frame is mounted on a Z-axis object carrying table of the Z-axis feeding system, the 3R clamp is mounted on the workpiece frame and used for mounting a workpiece, the 3R clamp and the fly-cutting cutter disc are arranged oppositely, and the position height of the central axis of the 3R clamp and the position height of the laser displacement sensor are in the same horizontal plane.
The 3R clamp is in the prior art, and can realize high-precision clamping of workpieces.
Furthermore, the in-place measuring system comprises a laser displacement sensor and a sensor fixing frame, wherein the sensor fixing frame is fixed on the inner wall of the spindle box, the laser displacement sensor is installed on the sensor fixing frame, and an opening used for penetrating through the laser beam to be measured is formed in the spindle box.
Furthermore, the X-axis feeding system and the Z-axis feeding system are arranged on the lathe bed in a T shape, the center line of the X-axis feeding system is 30mm away from the center line of the Z-axis feeding system, and the overall size of the machine tool is 500mm + 620mm + 500 mm.
The utility model discloses in, the control line for reducing linear electric motor and grating chi produces the interference to the cargo platform in the motion, linear electric motor adopts the mode of moving iron drive, is about to on linear electric motor's active cell is fixed in the lathe bed, installs linear electric motor's stator on each axle carries cargo platform, and the mounting means is the barycenter drive, and the motor central line produces the every single move in order to avoid the lathe motion in-process with the objective table central line coincidence promptly. Besides, the grating ruler adopts a fixed reading head and follows the installation mode of the ruler body, so that the interference of the control line on the platform is avoided.
Further, the linear motor adopts a moving iron driving mode.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses not only make work piece clamping location accurate, feed the process steady, accessible laser displacement sensor real-time detection flies the implementation of cutting technology moreover to make timely correction, avoided taking out clamping error, the longer problem consuming time that work piece measuring error leads to, thereby improve the machining precision. The linear motor can accurately control the contact point between the fly cutter and the workpiece, and the machining precision can be further effectively improved. The feeding amount of the flying cutter can be controlled more accurately by adopting the grating ruler for positioning, and the processing precision is further ensured. The air-float guide rail can realize smooth movement without friction and vibration, obtain higher guiding precision and indirectly improve the processing precision of the workpiece
2. The utility model discloses mainly to the not enough of traditional ultra-precise single-point diamond fly-cutting, innovated the design scheme, reduced the size dimension of whole lathe; compared with the conventional air floatation support or hydraulic support, the design of the composite throttling magnetic preloading air floatation support greatly reduces the redundancy of a machine tool feeding system, and can still obtain higher rigidity and stability on the premise of ensuring smaller machine tool size; and after the size of the miniaturized machine tool is reduced, the self-excitation frequency is greatly improved, and the influence of the temperature change of the foundation and the external processing environment on the processing precision of the machine tool is reduced. Meanwhile, due to the introduction of an in-situ measurement system, the machining efficiency of the precision component is effectively improved, and the workpiece clamping error is avoided; the utility model discloses in, also through innovation drive mode, increase the design of vibration isolation system, effectively avoided the interference source that exists in the traditional lathe, greatly improved the machining precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention
Figure 2 is a schematic size diagram of the present invention
FIG. 3 is a schematic view of the vibration isolation system of FIG. 1
FIG. 4 is an in-situ measurement schematic diagram of the laser displacement sensor in FIG. 1
FIG. 5 is a schematic view showing a view of the fly cutter of FIG. 1
FIG. 6 is a schematic view of the air bearing guide of FIG. 1.
Reference numbers and corresponding part names in the drawings:
1-vibration isolation system; 1-1-supporting a steel frame; 1-2-a diaphragm gas spring; 1-3-automatic leveling valve; 1-4-ground margin; 1-5-moving wheels; 2-bed body; 3-X axis feed system; 3-1-X axis baffles; 3-2-X organ cover; 3-3-X axis object carrying table; 4-in-place measurement system; 4-1-laser displacement sensor; 4-2-sensor mount; 4-3-measuring laser light; 5-a spindle system; 5-1-main shaft positioning block; 5-2-main shaft positioning adjusting block; 5-3-a main spindle box; 5-4-air flotation main shaft; 5-5-fly cutter head; 5-6-cutter positioning blocks; 5-7-a cutter fixing frame; 5-8-single point diamond fly-cutting tool; 5-9-fine adjustment nut; 5-10-coarse adjusting the nut; 6-a workpiece; 7-a workpiece clamping system; 7-1-3R clamp; 7-2-a workpiece holder; an 8-Z axis feed system; 8-1-Z axis baffles; 8-2-Z organ cover; an 8-3-Z axis object carrying table; 8-6-Z axis air-float guide rail; 8-7-grating ruler reading head; 8-8-grating ruler data lines; 8-9-grating ruler body; 8-10-linear motor stator; 8-11-linear motor mover; 8-12-linear motor control line; 8-13-preloaded magnets; 8-14-cover plate; 8-15-aerostatic aerosol; an 8-16-Z axis carrier plate; 8-17-orifice throttling vent.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1:
as shown in fig. 1-6, a desktop type miniature ultra-precise single-point diamond fly-cutting machine tool comprises a vibration isolation system 1, a tool body 2, an X-axis feeding system 3, an in-situ measurement system 4, a spindle system 5, a workpiece clamping system 7 and a Z-axis feeding system 8;
the lathe bed 2 is arranged on the vibration isolation system 1, the X-axis feeding system 3 and the Z-axis feeding system 8 are connected and arranged on the lathe bed 2 through bolts, the lathe bed 2 is made of marble, and the X-axis feeding system 3 and the Z-axis feeding system 8 are respectively used for realizing displacement adjustment in the X-axis direction and the Z-axis direction;
specifically, the X-axis feeding system 3 comprises an X-axis linear motor, an X-axis grating ruler, an X-axis air-floating guide rail and an X-axis object carrying table 3-3, wherein the X-axis linear motor is installed on the X-axis air-floating guide rail, the X-axis object carrying table 3-3 is installed on the X-axis linear motor, and the X-axis grating ruler is installed on the X-axis object carrying table 3-3;
specifically, the Z-axis feeding system 8 comprises a Z-axis objective table 8-3, a Z-axis linear motor and a Z-axis grating ruler Z-axis air-floating guide rail, wherein the Z-axis linear motor is installed on the Z-axis air-floating guide rail, the Z-axis objective table 8-3 is installed on the Z-axis linear motor, and the Z-axis grating ruler is installed on the Z-axis objective table 8-3;
the spindle system 5 comprises a spindle box 5-3, the spindle box 5-3 is installed on an X-axis objective table 3-3 of an X-axis feeding system 3, an air-floatation spindle 5-4 is arranged on the spindle box 5-3 and is a multi-air-floatation electric spindle, a fly-cutting cutter disc 5-5 is arranged at one end of the air-floatation spindle 5-4, and the fly-cutting cutter disc 5-5 is used for fixing a single-point diamond fly-cutting cutter 5-8;
specifically, the center of the fly-cutting cutter disc 5-5 is mounted on an air-floating main shaft 5-4 through a bearing, a cutter positioning block 5-6 is mounted on the side wall of the fly-cutting cutter disc 5-5, a cutter fixing frame 5-7 is mounted on the cutter positioning block 5-6, a coarse adjusting nut 5-10 and a fine adjusting nut 5-9 are respectively arranged on the cutter positioning block 5-6 and the cutter fixing frame 5-7, and the single-point diamond fly-cutting cutter 5-8 is mounted on the cutter fixing frame 5-7;
the in-situ measurement system 4 comprises a laser displacement sensor 4-1, the laser displacement sensor 4-1 is arranged on a main spindle box 5-3, and the laser displacement sensor 4-1 realizes the measurement of the real-time processing amount of the fly cutting machine;
the workpiece clamping system 7 is installed on a Z-axis objective table 8-3 of the Z-axis feeding system 8, the workpiece clamping system 7 comprises a workpiece frame 7-2 and a 3R clamp 7-1, the workpiece frame 7-2 is installed on the Z-axis objective table 8-3 of the Z-axis feeding system 8, the 3R clamp 7-1 is installed on the workpiece frame 7-2, the 3R clamp 7-1 is used for installing a workpiece 6, the 3R clamp 7-1 is arranged opposite to a fly-cutting cutter disc 5-5, and the position height of the central axis of the 3R clamp 7-1 and the position height of a laser displacement sensor 4-1 are in the same horizontal plane, so that the accuracy and timeliness of real-time detection can be further guaranteed, form and position errors caused by the detection position are avoided, and the workpiece frame 7-2 is marble;
the X-axis feeding system 3 and the Z-axis feeding system 8 are arranged on the lathe bed 2 in a T shape, the distance between the center line of the X-axis feeding system 3 and the center line of the Z-axis feeding system 8 is 30mm, and the overall size of the machine tool is 500mm + 620mm + 500 mm.
In this embodiment:
an X-axis linear motor adopts a moving iron driving mode, a linear motor rotor is fixed, a linear motor stator drives an X-axis object carrying platform 3-3 to move, so that the interference of a control line of the X-axis linear motor is eliminated, a grating of an X-axis grating ruler is installed on the X-axis object carrying platform 3-3 and moves along with the grating, and a reading head of the X-axis grating ruler is installed on an X-axis air floatation guide rail so as to eliminate the interference of a data line.
A Z-axis linear motor adopts a moving iron driving mode, a linear motor rotor is fixed, a linear motor stator drives a Z-axis object carrying platform 8-3 to move, so that interference of a Z-axis linear motor control line is eliminated, a grating of a Z-axis grating ruler is installed on the Z-axis object carrying platform 8-3 and moves along with the grating, and a reading head of the Z-axis grating ruler is installed on a Z-axis air floatation guide rail so that interference of a data line is eliminated.
The use method of the in-situ measurement system 4 is divided into two steps, namely: before processing, the laser displacement sensor 4-1 is moved to a certain position, and a certain point on the workpiece 6 is measured to obtain data and stored and recorded; after processing, the machine tool distance measuring sensor moves to the same position to measure the same point data and records the same point data; and obtaining the back draft by the difference value of the two times of data.
The air floatation guide rails selected by the X-axis feeding system 3 and the Z-axis feeding system 8 are both composite throttling magnetic preloading air floatation guide rails, namely, the air floatation guide rails adopt small-hole throttling type magnetic preloading air floatation support in the vertical direction and adopt multi-air-mass air floatation support in the horizontal direction; the straightness of the composite throttling magnetic preloading air floatation guide rail is 0.2-0.3 um.
The workpiece 6 is made of nonferrous metals such as copper and nickel and KDP crystal.
The working principle of the embodiment is as follows:
the air-flotation main shaft 5-4 adopts a multi-air-mass air-flotation support and is driven by a permanent magnet synchronous motor to drive the fly-cutting cutter head 5-5 to rotate, the X-axis feeding system 3 and the Z-axis feeding system 8 both adopt a composite throttling magnetic preloading support mode, and a linear motor and a grating ruler form closed-loop drive to complete X-direction linear motion; the workpiece frame 7-2 is located on the Z-axis object carrying platform 8-3 to complete Z-direction linear motion; the cutting feed is completed through the linkage and the matching of the X-axis object carrying table 3-3 and the Z-axis object carrying table 8-3.
This embodiment is through reducing the lathe size dimension, the effectual not enough of having overcome traditional fly to cut the lathe of innovation lathe design, has greatly avoided the introduction of error source, has improved the machining precision of lathe, has easy operation, characteristics that intelligent degree is high. At the same time.
The embodiment not only ensures that the workpiece is accurately clamped and positioned and the feeding process is stable, but also can detect the implementation condition of the fly-cutting process in real time through the laser displacement sensor and make timely correction, thereby improving the processing precision. The linear motor can accurately control the contact point between the fly cutter and the workpiece, and the machining precision can be further effectively improved. The feeding amount of the flying cutter can be controlled more accurately by adopting the grating ruler for positioning, and the processing precision is further ensured. The air-floating guide rail is arranged, so that friction-free and vibration-free smooth movement can be realized, higher guiding precision can be obtained, and the machining precision of the workpiece can be indirectly improved.
Example 2:
as shown in fig. 1 to 6, the present embodiment is based on embodiment 1, and the X-axis feeding system 3 further includes an X-axis baffle 3-1 and an X-organ cover 3-2; an X-axis organ cover 3-2 is arranged above the X-axis air floatation guide rail, and an X-axis baffle 3-1 is arranged at the end part of the X-axis organ cover 3-2; the Z-axis feeding system 8 further comprises a Z-axis baffle 8-1 and a Z-shaped organ cover 8-2; a Z-shaped organ cover 8-2 is arranged above the Z-axis air floatation guide rail, and a Z-axis baffle 8-1 is arranged at the end part of the Z-shaped organ cover 8-2 in a matching manner.
In this embodiment:
the X-axis feeding system 3 and the Z-axis feeding system 8 are prevented from being polluted by impurities by installing the organ covers and the baffles, the organ covers are made of high-flexibility materials, the baffles made of super-lubricating materials are arranged outside the organ covers, interference of the organ covers on the motion state of the machine tool is effectively avoided, and further interference of control lines of the linear motor and the grating ruler on a moving object carrying platform is reduced.
Example 3:
as shown in fig. 1 to 6, in the present embodiment, based on embodiment 1, the vibration isolation system 1 includes a supporting steel frame 1-1, a diaphragm type gas spring 1-2, an automatic leveling valve 1-3, a ground foot 1-4, and a moving wheel 1-4;
the thin film type gas spring 1-2 and the automatic leveling valve 1-3 are both arranged at the top of the supporting steel frame 1-1 and used for supporting the lathe bed 2, and the ground feet 1-4 and the moving wheels 1-4 are arranged at the bottom of the supporting steel frame 1-1;
the spindle system 5 comprises a spindle box 5-3, and the spindle box 5-3 is installed on an X-axis object carrying table 3-3 through a spindle positioning block 5-1 of a spindle positioning block and a spindle positioning adjusting block 5-2;
the on-site measurement system 4 comprises a laser displacement sensor 4-1 and a sensor fixing frame 4-2, the sensor fixing frame 4-2 is fixed on the inner wall of a spindle box 5-3, the laser displacement sensor 4-1 is installed on the sensor fixing frame 4-2, an opening for allowing a measurement laser ray 4-3 to pass through is formed in the spindle box 5-3, and a movable baffle is arranged at the opening in a matched mode.
In this embodiment:
the support steel frame 1-1, the film type gas spring 1-2 and the automatic leveling valve 1-3 of the vibration isolation system 1 are integrally connected to a controller to form a control loop; the load capacity of the vibration isolation system 1 is 4000-6000kg, the natural frequency in the vertical direction is 2.5-2.8HZ, the natural frequency in the horizontal direction is 2.5-2.8HZ, the horizontal recovery precision is +/-0.01 mm/m, the response time is less than 1S, the vibration isolation effect of 5HZ can reach more than 85%, and the vibration isolation effect of 10HZ can reach more than 95%. The vibration isolation system 1 completes vibration isolation and leveling of the whole machine tool equipment by a closed loop formed by connecting the thin film type gas spring 1-2 and the automatic leveling valve 1-3 in series.
The spindle box 5-3 has the function of preventing cutting liquid from splashing on the laser displacement sensor 4-1 during cutting to influence the detection precision, when one-time cutting is finished, the movable baffle is opened, the condition of one-time workpiece can be measured by the laser displacement sensor 4-1, and error compensation is performed during next fly-cutting processing according to the cutting condition.
In FIG. 6, 8-6 are Z-axis air-floating guide rails; 8-7 is a grating ruler reading head; 8-8 are grating ruler data lines; 8-9 is a grating ruler body; 8-10 is a linear motor stator; 8-11 are linear motor rotors; 8-12 are linear motor control lines; 8-13 are preloaded magnets; 8-14 is a cover plate; 8-15 is a multi-air-floated block; 8-16 is a Z-axis carrier plate; 8-17 are small hole throttling air holes.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A desktop type miniature ultra-precise single-point diamond fly-cutting machine tool is characterized by comprising a vibration isolation system (1), a tool body (2), an X-axis feeding system (3), an in-situ measurement system (4), a main shaft system (5), a workpiece clamping system (7) and a Z-axis feeding system (8);
the lathe bed (2) is installed on the vibration isolation system (1), the X-axis feeding system (3) and the Z-axis feeding system (8) are installed on the lathe bed (2), the X-axis feeding system (3) and the Z-axis feeding system (8) are respectively used for achieving displacement adjustment in the X-axis direction and the Z-axis direction, and the X-axis feeding system (3) and the Z-axis feeding system (8) perform displacement adjustment through a linear motor and a grating ruler;
the main shaft system (5) comprises a main shaft box (5-3), the main shaft box (5-3) is installed on an X-axis object carrying table (3-3) of the X-axis feeding system (3), an air floatation main shaft (5-4) is arranged on the main shaft box (5-3), one end of the air floatation main shaft (5-4) is provided with a fly-cutting cutter head (5-5), and the fly-cutting cutter head (5-5) is used for fixing a single-point diamond fly-cutting cutter (5-8);
the in-situ measurement system (4) comprises a laser displacement sensor (4-1), and the laser displacement sensor (4-1) is arranged on a spindle box (5-3);
the workpiece clamping system (7) is arranged on a Z-axis object carrying table (8-3) of the Z-axis feeding system (8), and the workpiece clamping system (7) is used for mounting a workpiece (6).
2. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, wherein the X-axis feeding system (3) comprises an X-axis linear motor, an X-axis grating ruler, an X-axis air-floating guide rail, an X-axis object carrying table (3-3), an X-axis baffle (3-1) and an X-organ cover (3-2);
the X-axis linear motor is installed on an X-axis air-floating guide rail, the X-axis object carrying table (3-3) is installed on the X-axis linear motor, the X-axis grating ruler is installed on the X-axis object carrying table (3-3), an X organ cover (3-2) is arranged above the X-axis air-floating guide rail, and an X-axis baffle (3-1) is arranged at the part of the X organ cover (3-2) in a matched mode.
3. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, wherein the Z-axis feeding system (8) comprises a Z-axis baffle (8-1), a Z organ cover (8-2), a Z-axis object carrying table (8-3), a Z-axis grating ruler, a Z-axis linear motor and a Z-axis air-floating guide rail;
the Z-axis linear motor is installed on a Z-axis air-floating guide rail, the Z-axis object carrying table (8-3) is installed on the Z-axis linear motor, the Z-axis grating ruler is installed on the Z-axis object carrying table (8-3), a Z organ cover (8-2) is arranged above the Z-axis air-floating guide rail, and a Z-axis baffle (8-1) is arranged at the end part of the Z organ cover (8-2) in a matched mode.
4. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, wherein the vibration isolation system (1) comprises a supporting steel frame (1-1), a thin film type gas spring (1-2), an automatic leveling valve (1-3), a ground foot (1-4) and a moving wheel (1-5);
the thin film type gas spring (1-2) and the automatic leveling valve (1-3) are both arranged at the top of the supporting steel frame (1-1) and used for supporting the lathe bed (2), and the ground feet (1-4) and the moving wheels (1-5) are arranged at the bottom of the supporting steel frame (1-1).
5. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, wherein the spindle system (5) comprises a spindle box (5-3), and the spindle box (5-3) is installed on an X-axis object carrying table (3-3) through a spindle positioning block (5-1) and a spindle positioning adjusting block (5-2).
6. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, characterized in that the center of the fly-cutting cutter (5-5) is mounted on an air floatation spindle (5-4) through a bearing, a cutter positioning block (5-6) is mounted on the side wall of the fly-cutting cutter (5-5), a cutter fixing frame (5-7) is mounted on the cutter positioning block (5-6), and a rough adjusting nut (5-10) and a fine adjusting nut (5-9) are respectively arranged on the cutter positioning block (5-6) and the cutter fixing frame (5-7).
7. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, characterized in that the workpiece clamping system (7) comprises a workpiece holder (7-2) and a 3R clamp (7-1), the workpiece holder (7-2) is installed on a Z-axis object carrying table (8-3) of a Z-axis feeding system (8), the 3R clamp (7-1) is installed on the workpiece holder (7-2), the 3R clamp (7-1) is used for installing a workpiece (6), the 3R clamp (7-1) is arranged opposite to a fly-cutting cutter head (5-5), and the central axis of the 3R clamp (7-1) and the position height of the laser displacement sensor (4-1) are in the same horizontal plane.
8. The desktop type miniature ultra-precise single-point diamond fly-cutting machine tool according to claim 1, wherein the in-situ measurement system (4) comprises a laser displacement sensor (4-1) and a sensor fixing frame (4-2), the sensor fixing frame (4-2) is fixed on the inner wall of a spindle box (5-3), the laser displacement sensor (4-1) is installed on the sensor fixing frame (4-2), and an opening for passing through a measurement laser ray (4-3) is formed in the spindle box (5-3).
9. The desktop type micro ultra-precise single-point diamond fly-cutting machine tool according to any one of claims 1 to 8, characterized in that the X-axis feeding system (3) and the Z-axis feeding system (8) are arranged on the machine tool body (2) in a T shape, the center line of the X-axis feeding system (3) is spaced from the center line of the Z-axis feeding system (8) by 30mm, and the overall size of the machine tool is 500mm + 620mm + 500 mm.
10. The tabletop type miniature ultra-precise single-point diamond fly-cutting machine tool according to any one of claims 1 to 8, wherein the linear motor is driven by a moving iron.
CN201921954881.5U 2019-11-13 2019-11-13 Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool Active CN210999512U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921954881.5U CN210999512U (en) 2019-11-13 2019-11-13 Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921954881.5U CN210999512U (en) 2019-11-13 2019-11-13 Desktop type miniature ultra-precise single-point diamond fly-cutting machine tool

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Publication Number Publication Date
CN210999512U true CN210999512U (en) 2020-07-14

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Country Link
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