CN115502428A - Tool rest with adjustable turning tool position of ultra-precision lathe - Google Patents
Tool rest with adjustable turning tool position of ultra-precision lathe Download PDFInfo
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- CN115502428A CN115502428A CN202211193252.1A CN202211193252A CN115502428A CN 115502428 A CN115502428 A CN 115502428A CN 202211193252 A CN202211193252 A CN 202211193252A CN 115502428 A CN115502428 A CN 115502428A
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- 238000007514 turning Methods 0.000 title claims abstract description 99
- 238000006073 displacement reaction Methods 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000003825 pressing Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000007516 diamond turning Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
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Abstract
The invention discloses a tool rest with an adjustable turning tool position of an ultra-precision lathe, belonging to the technical field of turning, and comprising: a base; the hinge type tool rest seat comprises a fixed part and a hinge movable part, the fixed part is fixed on the base, a horizontally arranged mounting hole is formed in the fixed part, one side of the hinge movable part is a movable end, the lower end face of the hinge movable part, close to the movable end, is provided with an inclined plane inclined along the moving direction, and the other side of the hinge movable part is connected with one side of the fixed part; the turning tool mounting seat is detachably provided with a turning tool and a locking part, and is in sliding connection with the moving end of the hinge movable part, and the locking part is used for fixing the turning tool mounting seat; the coarse adjustment component is arranged at the moving end of the hinge moving part and is in transmission connection with the turning tool mounting seat; the fine adjustment assembly comprises a driving part and a displacement sliding block, and the driving part is installed in the installation hole. The invention can realize the quick adjustment and the accurate fine adjustment of the position of the turning tool and can measure the position of the turning tool in real time.
Description
Technical Field
The invention relates to the technical field of turning, in particular to a tool rest with an adjustable turning tool position of an ultra-precision lathe.
Background
At present, a diamond turning ultra-precise lathe is a processing technology for carrying out high-precision surface manufacturing by utilizing a single crystal diamond turning tool, is applied to important fields of national defense, aerospace, space telemetering and the like, and the processing level of the diamond turning ultra-precise lathe reflects the technical level of related industries of China. The tool setting position of a turning tool in diamond turning ultra-precision lathe machining has important influence on the quality of a machined surface, the common turning tool position is calibrated through manpower and measuring tools, a cushion block is additionally arranged to conduct coarse adjustment and fine adjustment in the height position direction of the turning tool, the turning tool position calibration is complicated and complicated, no rule can be referred to, and the calibration precision of the turning tool position depends on the operation experience of a machining worker, so that the turning tool position adjusting process of the traditional ultra-precision lathe consumes a large amount of time, and the tool wear and the identification of the tool setting error of the center position of the turning tool in the machining process cannot be realized. The invention patent with the prior application number of 202100130947.4 discloses a novel adjustable tool rest, but the novel adjustable tool rest only utilizes a lifting screw rod to rotate to drive a screw rod nut, a tool rest sliding block and a turning tool to move up and down together, so that the position of the turning tool is measured according to the measured value of a micrometer screw rod at the top end of the lifting screw rod.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide an adjustable tool post for diamond turning ultra-precision lathe, which can quickly adjust the position of a turning tool and accurately measure the position of the turning tool.
Disclosure of Invention
In view of the above, the present invention is directed to a tool rest with adjustable turning tool position for an ultra-precision lathe, which solves at least some of the above problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ultra-precision lathe turning tool position adjustable tool rest, comprising:
a base;
the hinge type tool rest seat comprises a fixed part and a hinge movable part, the fixed part is fixed on the base, a horizontally arranged mounting hole is formed in the fixed part, one side of the hinge movable part is a movable end, the lower end face of the hinge movable part, close to the movable end, is provided with an inclined plane inclined along the moving direction, and the other side of the hinge movable part is connected with one side of the fixed part;
the turning tool mounting seat is detachably provided with a turning tool and a locking part, and is in sliding connection with the moving end of the hinge movable part, and the locking part is used for fixing the turning tool mounting seat;
the coarse adjustment component is arranged at the moving end of the hinge movable part and is in transmission connection with the turning tool mounting seat;
the fine adjustment assembly comprises a driving part and a displacement slide block, and the driving part is arranged in the mounting hole; the displacement slide block is connected to the driving end of the driving part in a transmission manner and is abutted against the inclined surface to drive the moving end of the hinge moving part to move up and down;
the measuring assembly is fixed on the end face of one side of the base, and the measuring end of the measuring assembly is abutted to the turning tool;
and the structural deformation real-time monitoring assembly is fixed on the top end surface of the hinge movable part.
The beneficial effect of the scheme of the previous step is adopted: the coarse adjustment assembly is adjusted by unscrewing the locking piece to drive the turning tool mounting seat to move up and down, so that the turning tool on the turning tool mounting seat moves up and down, and the turning tool position is quickly adjusted. Displacement slider up end is the inclined plane, and the terminal surface is the inclined plane design under the hinge movable part of rather than the butt is same angle to the fixed end of hinge, can drive displacement slider horizontal slip through adjusting the accurate subassembly of transferring to hinge movable part rebound drives the lathe tool on the hinge type tool rest seat and reciprocates, thereby carries out the accurate regulation of the vertical direction in lathe tool position. The adjusting parameters of the position of the turning tool can be read in real time through the measuring assembly, and the state of the position of the tool rest can be monitored in real time according to the structural deformation real-time monitoring assembly.
Preferably, the hinge active portion comprises four straight circular flexible hinge structures:
a first flexible hinge;
the second flexible hinge is fixedly connected with the first flexible hinge and has the same horizontal center;
a third flexible hinge having the same vertical center as the first flexible hinge;
the fourth flexible hinge is fixedly connected with the third flexible hinge and has the same horizontal center, and meanwhile, the fourth flexible hinge and the second flexible hinge have the same vertical center; gaps are arranged at the joints of the third flexible hinge and the fourth flexible hinge and the first flexible hinge and the second flexible hinge.
The beneficial effects of the scheme in the previous step are as follows: hinge movable part is provided with the straight circular flexible hinge structure of four the same unipolar, the parallelogram mechanism's that its principle is used for reference two rocker motion forms, when displacement slider horizontal motion, hinge movable part inclined plane department horizontal direction receives and small external force, because its hinge structure's symmetry, the micro displacement that the horizontal direction produced is offset by the inside elastic deformation volume of flexible hinge, and the external force that the vertical direction of inclined plane department received is great relatively, therefore the one end that hinge movable part removed does not take place the removal of horizontal direction, only produce the displacement of vertical direction, thereby can accomplish the ascending adjustment in the vertical direction in lathe tool position.
The coarse adjustment assembly comprises a lead screw and a nut block, a sliding groove is formed in one side of the hinge movable part, which is close to the turning tool mounting seat, a lead screw mounting hole communicated with the sliding groove is formed in the upper end face of one side of the hinge movable part, and the lead screw is mounted in the lead screw mounting hole; the nut block is connected in a sliding way and in transmission with the screw rod.
The beneficial effects of the scheme in the previous step are as follows: the lead screw can convert rotary motion into linear motion, so that the turning tool mounting seat can be driven to move up and down in the sliding groove by rotating the lead screw.
The locking member is adjusting screw, the lathe tool mount pad is close to the side end face of hinge movable part is opened there is rectangular shape regulation hole, the hinge movable part corresponds the position in rectangular shape regulation hole is equipped with the screw hole, adjusting screw passes rectangular shape regulation hole with screw hole threaded connection.
The beneficial effects of the scheme in the previous step are as follows: and the adjusting screw is unscrewed, the turning tool mounting seat can move up and down, the adjusting screw is screwed, and the turning tool mounting seat can be fixed on the hinge type tool rest seat.
The driving part includes: the transmission shaft penetrates through the mounting hole, and one end of the transmission shaft is in transmission connection with the displacement slide block; the adjusting pipe is sleeved at one end of the transmission shaft far away from the displacement slide block and is in fine thread connection with the transmission shaft on the inner wall; and the output end of the rotary motor is fixedly connected with the outer surface of the adjusting pipe.
The beneficial effects of the scheme in the previous step are as follows: the rotary motor provides power for adjusting the adjusting pipe, so that the rotation amount of the adjusting pipe can be adjusted more accurately, and the condition of large error of manual adjustment precision is avoided. The control tube rotates and drives the transmission shaft and rotate and produce the small removal of horizontal direction to drive the slip that the displacement slider produced the horizontal direction on the base, the displacement slider slides and drives the one end that the hinge movable part removed and produce the removal of vertical direction, thereby accomplishes the accurate adjustment of the vertical direction in lathe tool position.
The movable part of the hinge and the inclined plane of the displacement slide block incline downwards towards the fixed part and form an included angle of 3-5 degrees with the horizontal direction.
The beneficial effects of the scheme in the previous step are as follows: the lower end face of the hinge movable part is abutted against the upper end face of the displacement slide block and is inclined at the same angle downwards towards the direction of the fixed part, so that when the displacement slide block moves horizontally, the movable end of the hinge movable part moves up and down simultaneously. The angle is small, so that the hinge type tool rest seat can be prevented from being damaged.
The displacement slide block is characterized by further comprising a plurality of displacement slide block springs, wherein the displacement slide block springs are all axially and horizontally arranged, one ends of the displacement slide block springs are fixed on the side end face of the displacement slide block, and the other ends of the displacement slide block springs are fixed on the side end face, close to the displacement slide block, of the fixing part.
The beneficial effects of the scheme in the previous step are as follows: the displacement slide block is pulled by a spring to only slide but not rotate, and the sliding range of the displacement slide block can be limited.
The inner wall of the mounting hole is fixedly connected with a limiting ring, the limiting ring is sleeved at one end, close to the adjusting pipe, of the transmission shaft, and the inner diameter of the limiting ring is smaller than the outer diameter of the adjusting pipe.
The beneficial effects of the scheme in the previous step are as follows: the adjusting pipe can be limited, and the pull rod can move in the horizontal direction when the adjusting pipe rotates.
The measurement assembly includes:
the measuring installation seat is fixed on the side end face of the base;
the supporting rod is fixed on the measuring installation seat;
a dial indicator;
and the clamping rods are horizontally arranged, one end of each clamping rod is movably connected to the supporting rod, and the other end of each clamping rod clamps the dial indicator.
The beneficial effects of the scheme in the previous step are as follows: the dial indicator can measure the position of the turning tool in real time, read the adjustment quantity of the height of the position of the turning tool and adjust the position of the turning tool in real time.
The real-time monitoring assembly for structural deformation comprises:
the strain gauge mounting plate is fixed at the top end of the hinge type tool rest seat;
the strain gauge comprises a strain gauge body, a strain gauge mounting plate and a strain gauge, wherein the strain gauge body is fixed on the strain gauge mounting plate, and the strain gauge is electrically connected to a strain gauge.
The beneficial effect of the scheme of the previous step is adopted: the structural deformation real-time monitoring assembly can accurately monitor the deformation of the position of the lathe tool through monitoring the structural deformation state of the hinge type tool rest seat in real time, and meanwhile, the real-time monitoring assembly can also monitor the deformation of the hinge type tool rest seat in real time so as to prevent the damage of the hinge type tool rest seat.
According to the technical scheme, compared with the prior art, the invention discloses the tool rest with the adjustable turning tool position of the ultra-precision lathe, and the tool rest has the following beneficial effects:
1. quick accurate tool setting is realized to accessible coarse adjusting subassembly, accurate adjustment subassembly, measuring component, structural deformation real-time supervision subassembly, and the lathe tool position quick adjustment can be realized to coarse adjusting subassembly, and the accurate regulation in lathe tool position can be realized to the accurate adjustment subassembly, and the position adjustment direction that the hinge shape blade holder structure can guarantee the lathe tool knife tip simultaneously is only in vertical direction, skew or the skew of arbitrary angle direction about can not producing.
2. The measuring assembly reads the measured value of the lathe tool position regulating quantity in real time in the early stage, and the strain quantity read by the strain gauge in the structural deformation real-time monitoring assembly is combined, so that the information of the position state of the lathe tool can be acquired in real time only through the structural deformation real-time detecting assembly in the later stage, and on-line recognizable regulating quantity guide information is provided for the lathe tool position regulation in the lathe tool machining and cutting process.
3. The precision angle adjustment of the rotary motor is adopted, so that the traditional condition that the precision is unreliable by depending on manual adjustment can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the tool rest with adjustable position for a turning tool of an ultra-precision lathe, provided by the invention;
FIG. 2 is a schematic view of a detachable structure of an ultra-precision lathe tool position adjustable tool rest according to the present invention;
FIG. 3 is an exploded view of a fine tuning section of the present invention;
FIG. 4 is a partial cross-sectional view of the fine tuning of the present invention;
FIG. 5 is an exploded view of the coarse tuning section of the present invention;
FIG. 6 is a schematic view of a measurement assembly of the present invention;
FIG. 7 is a schematic view of a hinged tool holder assembly of the present invention;
fig. 8 is a schematic diagram of a modification of the hinge-type tool rest base of the present invention.
In the figure:
1, a base; 2 a hinge type tool rest base; 3, turning tool mounting seats; 4, a lead screw; 5, displacing the sliding block; 6 a measuring assembly; 7, a structural deformation real-time monitoring assembly; 8, turning a tool; 9 a transmission shaft; 10 adjusting the pipe; 11 a rotary motor; 12 displacement slider springs; 13, a limiting ring; 14 self-lubricating copper ring; 15 limiting jackscrews; 16 a base plate; 17, turning tool fixing pressing blocks; 18 fixing the pressure plate; 19 hinge type tool rest base fastening screws; 20 displacement slide block locating piece; 21 displacing the slide block fastening screw;
201 a fixed part; 202 a hinge active portion;
2021 a first flexible hinge; 2022 a second flexible hinge; 2023 a third flexible hinge; 2024 a fourth flexible hinge;
601 a measurement mounting base; 602 a strut; 603 dial indicator; 604 a clamping rod;
701 a strain gauge mounting plate; 702 a strain gage.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 7, an embodiment of the present invention discloses a tool rest with an adjustable turning tool position for an ultra-precision lathe, including:
a base 1;
the hinge type tool rest seat 2 comprises a fixing part 201 and a hinge moving part 202, the fixing part 201 is fixed on the base 1, a horizontally arranged mounting hole is formed in the fixing part 201, one side of the hinge moving part 202 is a moving end, the lower end face of the hinge moving part, close to the moving end, is provided with an inclined plane inclined along the moving direction, and the other side of the hinge moving part is connected with one side of the fixing part 201;
the turning tool mounting seat 3 is provided with a turning tool 8 and a locking part which are detachably arranged on the turning tool mounting seat 3 and are in sliding connection with the moving end of the hinge movable part 202, and the locking part is used for fixing the turning tool mounting seat 3;
the coarse adjustment component is arranged at the moving end of the hinge movable part 202 and is in transmission connection with the turning tool mounting seat 3;
the fine adjustment assembly comprises a driving part and a displacement slide block 5, and the driving part is arranged in the mounting hole; the displacement slide block 5 is connected to the driving end of the driving part in a transmission manner and is abutted against the inclined surface to drive the moving end of the hinge movable part 202 to move up and down;
the measuring component 6 is fixed on the end face of one side of the base 1, and the measuring end of the measuring component 6 is abutted to the turning tool 8;
the structural deformation real-time monitoring assembly 7 is fixed on the top end face of the hinge movable part 202, and the structural deformation real-time monitoring assembly 7 is fixed on the top end face of the hinge movable part 202.
The turning tool mounting seat 3 is driven to move up and down by adjusting the coarse adjustment component, so that the turning tool 8 on the turning tool mounting seat 3 moves up and down, and the position of the turning tool 8 is quickly adjusted. The 5 up end of displacement slider is the inclined plane, and the inclined plane design that the terminal surface is the same angle under the hinge movable part 202 of its butt can drive 5 horizontal slideings of displacement slider through adjusting the accurate subassembly to hinge movable part 202 rebound drives lathe tool 8 on the hinge type tool post seat 2 and reciprocates, thereby carries out the accurate regulation of the vertical direction in lathe tool 8 position. The adjusting parameters of the position of the turning tool 8 can be read in real time through the measuring component 6, and the state of the position of the tool rest can be monitored in real time according to the structural deformation real-time monitoring component 7.
Further, referring to fig. 6, the hinge active portion 202 includes four straight circular flexible hinge structures:
a first flexible hinge 2021;
the second flexible hinge 2022 is fixedly connected with the first flexible hinge 2021, and the second flexible hinge 2022 and the first flexible hinge 2021 have the same horizontal center;
a third flexible hinge 2023 having the same vertical center as the first flexible hinge 2021;
the fourth flexible hinge 2024 is fixedly connected with the third flexible hinge 2023 and has the same horizontal center, and has the same vertical center as the second flexible hinge 2022; the third flexible hinge 2023 and the fourth flexible hinge 2024 have a gap at the connection point of the first flexible hinge 2021 and the second flexible hinge 2022.
Hinge type tool rest base 2's hinge movable part 202 is provided with the straight circular flexible hinge structure of four the same unipolar, its principle is the two rocker motion forms of the parallelogram mechanism of reference, when displacement slider 5 horizontal slip, hinge movable part 202 horizontal direction receives and its small external force, because the symmetry of its structure, the micro displacement that the horizontal direction produced is offset by the inside elastic deformation volume of flexible hinge, the external force that vertical direction received is great relatively, therefore the one end that hinge movable part 202 removed does not take place the removal of horizontal direction, only produce the displacement of vertical direction, thereby can accomplish the ascending adjustment in the vertical side in lathe tool 8 positions.
Further, referring to fig. 4, the coarse adjustment assembly includes a screw rod 4 and a nut block, a sliding groove is formed in one side of the hinge movable portion 202 close to the turning tool mounting seat 3, a screw rod mounting hole communicated with the sliding groove is formed in an upper end surface of one side of the hinge movable portion, and the screw rod 4 is mounted in the screw rod mounting hole; the nut block is provided with a screw rod adjusting hole, and the lower end of the screw rod 4 penetrates through the screw rod adjusting hole and is in threaded connection with the screw rod adjusting hole. The screw rod 4 is rotated, and the nut block can move up and down in the sliding groove. And a lathe tool fixing pressing block 17 is fixed at the top of the lathe tool mounting seat 3, and a lathe tool fastening screw is installed on the lathe tool fixing pressing block 17 to fix the lathe tool 8 on the lathe tool mounting seat 3. The retaining member is an adjusting screw, a long strip-shaped adjusting hole is formed in the side end face, close to the hinge movable portion 202, of the turning tool mounting seat 3, a fixing pressing plate 18 is further arranged on the outer side of the long strip-shaped adjusting hole, a threaded hole is formed in the position, corresponding to the long strip-shaped adjusting hole, of the hinge movable portion 202, and the adjusting screw penetrates through the fixing pressing plate 18 and the long strip-shaped adjusting hole to be in threaded connection with the threaded hole. When 8 positions of adjustment lathe tools, unscrew adjusting screw, rotate lead screw 4, the nut piece can reciprocate in the sliding tray, drives lathe tool mount pad 3 and reciprocates, and lathe tool 8 reciprocates thereupon to carry out 8 high quick adjustment in position of lathe tool. And (4) roughly adjusting the position of the turning tool 8, and screwing the adjusting screw down to fix the turning tool mounting seat 3 on the hinge type tool rest seat 2.
Further, referring to fig. 3, the driving part includes: the device comprises a transmission shaft 9, an adjusting pipe 10 and a rotary motor 11, wherein the transmission shaft 9 penetrates through the mounting hole, and one end of the transmission shaft is in transmission connection with the displacement slide block 5; the adjusting pipe 10 is sleeved at one end of the transmission shaft 9 far away from the displacement slider 5 and is in fine thread connection with the transmission shaft 9; the output end of the rotary motor 11 is fixedly connected with the outer surface of the adjusting pipe 10.
Specifically, one end of the transmission shaft 9 connected with the adjusting pipe 10 is a threaded rod, the threaded rod is sleeved inside the adjusting pipe 10 and is in threaded connection with the inner wall of the adjusting pipe 10, and the threaded connection portion of the transmission shaft 9 and the adjusting pipe 10 is of a fine thread structure. The rotation amount of the rotary motor 11 is small, and the fine thread connection is adopted, so that the rotary horizontal movement can be realized, and the micro rotation amount of the rotary motor 11 can be adapted at the same time, and the fine adjustment of the position of the turning tool 8 is realized. The adjusting tube 10 is provided with a long strip-shaped limiting hole, and a limiting jackscrew 15 is vertically inserted into the long strip-shaped limiting hole and fixed on the transmission shaft 9, so that the adjusting tube 10 and the output shaft of the rotary motor 11 rotate together. The inner wall fixedly connected with axial level that is close to regulating tube 10 one end in the mounting hole arranges spacing ring 13, and transmission shaft 9 pegs graft in spacing ring 13, and 13 internal diameters of spacing ring are less than the regulating tube 10 external diameter, can carry on spacingly to regulating tube 10, and transmission shaft 9 produces the removal of horizontal direction when making regulating tube 10 rotate.
The inclined planes of the hinge movable part 202 and the displacement slide block 5 are both inclined downwards towards the fixed part and have included angles of 3-5 degrees with the horizontal direction. The lower end face of the hinge moving part 202 abuts against the upper end face of the displacer 5, and all the inclined faces are inclined downward toward the fixed part 201 by the same angle, so that when the displacer 5 moves horizontally, the moving end of the hinge moving part 202 moves vertically at the same time. The small angle ensures that the hinged tool holder 2 is not damaged.
A plurality of displacement slider springs 12 are further provided, and the plurality of displacement slider springs 12 are all arranged horizontally in the axial direction, and one end thereof is fixed on the side end face of the displacement slider 5, and the other end thereof is fixed on the side end face of the fixing portion 201. When the shift slider 5 slides, the sliding range of the shift slider 5 can be restricted and prevented from rotating.
In an embodiment, in order to facilitate the sliding of the displacer 5 and reduce the friction force, and to facilitate the assembly and disassembly, a detachable bottom plate 16 is disposed above the base 1, and the upper end surface of the bottom plate 16 is smooth and fixed to the bottom end surface of the fixing portion 201 by screws. The hinge type tool post 2 is optimally an integral structure, a tool post through hole is arranged in the middle of the hinge movable part 202, a hinge type tool post fastening screw mounting hole is arranged below the fixing part 201 corresponding to the through hole, and a hinge type tool post fastening screw 19 is inserted into the hinge type tool post fastening screw mounting hole from the top to fix the fixing part 201 and the bottom plate 16 on the base 1 together. The middle part of the transmission shaft 9 is provided with a long strip-shaped through hole, which is convenient for installing the fastening screw 19 of the hinge type tool rest base and does not influence the rotation and the horizontal movement of the transmission shaft. Self-lubricating copper rings 14 are sleeved on two sides of the long-strip-shaped through hole of the transmission shaft 9, so that friction between the transmission shaft 9 and the inner wall of the mounting hole of the fixing portion 201 is reduced. A displacement slide block fastening screw 21 is inserted in the middle of the displacement slide block 5 in the horizontal direction, and the other end of the displacement slide block fastening screw 21 is inserted into the end part of the transmission shaft 9 connected with the displacement slide block fastening screw so that the displacement slide block 5 is fixedly connected with the transmission shaft 9. The transmission shaft 9 slightly rotates and the displacement slide block 5 slightly displaces in the horizontal direction.
The rotary motor 11 provides power for rotating the adjusting pipe 10, so that the rotation amount of the adjusting pipe 10 can be adjusted more accurately, and the condition of large error of manual adjustment precision is avoided. The adjusting pipe 10 rotates and drives the transmission shaft 9 to rotate and produce the small removal of horizontal direction to drive the sliding block 5 to produce the slip of horizontal direction on bottom plate 16, the sliding block 5 drives the hinge movable part 202 to remove the removal that the end produced vertical direction, thereby accomplishes the accurate adjustment of the vertical direction in lathe tool 8 position.
Further, in a specific embodiment, the moving end of the hinge moving portion 202 is further provided with a moving slider limiting member 20, two sides of the moving slider 5 are both provided with vertically arranged rectangular first through holes, two second through holes in two vertical directions are formed corresponding to the moving end of the hinge moving portion 202 abutted against the moving end, the moving slider limiting member 20 is a screw sleeved with a hinge-type knife rest spring, two ends of the hinge-type knife rest spring are sleeved with a gasket on the screw, the moving slider limiting member 20 is sequentially inserted into the second through holes and the first through holes, the lower end of the moving slider limiting member is in threaded connection with a threaded hole on the bottom plate 16, and the hinge-type knife rest base 2 and the moving slider 5 are fixed on the bottom plate 16. When the transmission shaft 9 drives the displacement slider 5 to slide on the bottom plate 16, the displacement slider limiting part 20 can enable the displacement slider 5 to horizontally slide on the bottom plate and limit the sliding range to be 0-10 microns, the hinge type tool rest spring enables the moving end of the hinge movable part 202 to move up and down, and meanwhile, the deformation pressure of the hinge type tool rest base 2 can be relieved, so that the weak flexible hinge structure is not damaged.
Further, referring to fig. 5, the measuring assembly 6 includes: the measuring and installing seat 601, the supporting rod 602, the dial indicator 603 and the clamping rod 604 are arranged, a strip-shaped installing seat through hole is formed in the end face of the side of the measuring and installing seat 601, the measuring and installing seat fastening screw is fixed on the end face of one side of the base 1, the measuring and installing seat fastening screw is unscrewed, the position of the measuring and installing seat 601 can be adjusted, and the measuring and installing seat fastening screw is screwed after adjustment. The lower end of the supporting rod 602 is fixed on the measuring installation seat 601. The clamping rod 604 is horizontally arranged, one end of the clamping rod is rotatably connected to the supporting rod 602, and the other end of the clamping rod clamps the fixing rod at the lower end of the dial indicator 603. The two ends of the holding rod 604 are both of bayonet structures, a bolt penetrates through the outer side of the bayonet, the holding rod 604 can be rotated and the height of the holding rod can be adjusted by loosening the bolt at the bayonet of the support rod 602, and the holding rod can be fixed on the support rod 602 by tightening the bolt. Similarly, the dial indicator 603 can be installed or removed by adjusting the bolt of the bayonet at the dial indicator 603. The dial indicator 603 can measure the position of the turning tool 8 in real time, read the adjustment amount of the height of the position of the turning tool 8 and adjust the position of the turning tool 8 in real time.
Referring to fig. 2, the structural deformation real-time monitoring assembly 7 includes: the device comprises a strain gauge mounting plate 701 and a strain gauge 702, wherein the strain gauge mounting plate 701 is fixed at the top end of a hinge-type tool rest base 2, and a lead screw through hole is formed in the position, corresponding to a lead screw mounting hole, of the strain gauge mounting plate 701 so as to mount a lead screw 4; a strain gauge 702 is fixed to the strain gauge mounting plate 701, and the strain gauge 702 is electrically connected to a strain gauge. The real-time structural deformation monitoring assembly 7 can accurately monitor the deformation of the position of the turning tool 8 through monitoring the structural deformation state of the hinge type tool rest base 2 in real time, and meanwhile, can monitor the deformation in real time so as to prevent the damage to the hinge type tool rest base 2.
The tool setting steps when the tool setting device is used are as follows:
s1, a turning tool 8 is installed on a turning tool installation seat 3, and an adjusting screw on a fixed pressing plate 18 is loosened to enable the turning tool installation seat 3 to be in a coarse adjustment state;
s2, roughly adjusting the turning tool mounting seat 3 by rotating the lead screw 4;
s3, fixing the turning tool mounting seat 3 on the hinge type tool rest seat 2 by screwing down the bolt on the fixed pressing plate 18;
s4, finely adjusting the turning tool mounting seat 3 by starting the rotary motor 11 and adjusting the rotation quantity of the rotary motor;
and S5, reading the tool setting error and the structural position state of the turning tool 8 through the measuring component 6 and the structural deformation real-time monitoring component 7.
The specific process comprises the first step of installing a turning tool 8 on a turning tool installation seat 3 on a hinge type tool rest seat 2, fixing the turning tool by using a turning tool fixing pressing block 17, measuring the current height dimension position of the turning tool 8 and calculating the preset height dimension. The high position coarse adjustment of second step, utilize allen key to rotate lead screw 4, lead screw 4 can drive the nut piece on the lathe tool mount pad 3 and take place the displacement in vertical direction, the nut piece on the lathe tool mount pad 3 is connected through the sliding tray with hinge type tool rest seat 2, fixed pressing plate 18 passes through adjusting screw with lathe tool mount pad 3 and is connected, adjusting screw on the fixed pressing plate 18 is in not hard up state when rotating lead screw 4, read the reading on the amesdial 603 when rotating lead screw 4, thereby accomplish the tool setting coarse adjustment of lathe tool 8. Thirdly, fine adjustment is carried out, the rotary motor 11 drives the adjusting pipe 10 to rotate, and the adjusting pipe 10 drives the transmission shaft 9 to move slightly in the horizontal direction when rotating under the limiting condition of the limiting ring 13; the displacement slide block 5 is connected with the transmission shaft 9, the displacement slide block 5 generates small displacement under the pulling of the transmission shaft 9, the displacement slide block 5 is in inclined surface contact with the hinge movable part 202, and then the flexible hinge structure on the hinge type tool rest base 2 is enabled to generate small parallelogram displacement motion in the vertical direction, so that the fine adjustment in the vertical direction of the turning tool 8 is realized.
The working principle of the invention is as follows:
1. a coarse adjustment component: the turning tool mounting seat is mainly used for quickly adjusting the height position error of a turning tool 8, the adjustable range is plus or minus 5mm, the pitch precision of a lead screw 4 is 1mm per revolution, and the principle is that the coarse adjustment of the turning tool mounting seat 3 is realized by utilizing the quantitative rotation of the lead screw 4, so that the position adjustment can be realized accurately;
2. fine adjustment of the components: the fine adjustment mechanism is mainly used for fine adjustment of height position errors of a turning tool 8, the measuring range is 1 mu m, the realization principle is that the transmission shaft 9 horizontally drives the displacement slide block 5 to move based on the fine thread on the transmission shaft 9 under the rotation of the adjusting pipe 10, and the hinge type tool rest base 2 is slightly moved under the movement of the displacement slide block 5.
3. The measuring assembly 6: the module is mainly used for measuring and reading the adjustment quantity of the height of the turning tool 8 in real time, and the minimum resolution of the dial indicator 603 is 1 micrometer.
4. Structural deformation real-time monitoring component 7: the method is mainly used for detecting the structural deformation state of the hinge type tool rest base 2 in real time, so that the position change of the turning tool 8 is further detected.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an ultra-precision lathe tool position adjustable tool rest which characterized in that includes:
a base (1);
the hinge type tool rest seat (2) comprises a fixing part (201) and a hinge moving part (202), the fixing part (201) is fixed on the base (1), a mounting hole which is horizontally arranged is formed in the fixing part (201), one side of the hinge moving part (202) is a moving end, the lower end face, close to the moving end, of the hinge moving part is provided with an inclined plane which is inclined along the moving direction, and the other side of the hinge moving part is connected with one side of the fixing part (201);
the turning tool mounting seat (3) is detachably provided with a turning tool (8) and a locking piece, the turning tool mounting seat (3) is connected with the moving end of the hinge movable part (202) in a sliding mode, and the locking piece is used for fixing the turning tool mounting seat (3);
the coarse adjustment component is mounted at the moving end of the hinge movable part (202) and is in transmission connection with the turning tool mounting seat (3);
the fine adjustment assembly comprises a driving part and a displacement slide block (5), and the driving part is installed in the installation hole; the displacement slide block (5) is connected to the driving end of the driving part in a transmission manner and is abutted against the inclined surface to drive the moving end of the hinge movable part (202) to move up and down;
the measuring component (6) is fixed on the end face of one side of the base (1), and the measuring end of the measuring component (6) is abutted to the turning tool (8);
the structural deformation real-time monitoring assembly (7) is fixed to the top end face of the hinge movable portion (202).
2. The ultra-precision lathe tool position adjustable tool post according to claim 1, characterized in that the hinge moving part (202) comprises four right circular flexible hinge structures:
a first flexible hinge (2021);
a second flexible hinge (2022), the second flexible hinge (2022) being fixedly connected to the first flexible hinge (2021) and having the same horizontal center;
a third flexible hinge (2023) having the same vertical center as the first flexible hinge (2021);
a fourth flexible hinge (2024) fixedly connected to the third flexible hinge (2023) and having the same horizontal center and the same vertical center as the second flexible hinge (2022); gaps are arranged at the joints of the third flexible hinge (2023) and the fourth flexible hinge (2024) and the first flexible hinge (2021) and the second flexible hinge (2022).
3. The tool rest capable of adjusting the position of the turning tool of the ultra-precision lathe according to claim 1, wherein the coarse adjustment assembly comprises a lead screw (4) and a nut block, a sliding groove is formed in one side of the hinge movable part (202) close to the turning tool mounting seat (3), a lead screw mounting hole communicated with the sliding groove is formed in the upper end surface of one side of the hinge movable part, and the lead screw (4) is mounted in the lead screw mounting hole; the nut block is connected in the sliding groove in a sliding mode and is in transmission connection with the lead screw (4).
4. The tool rest capable of adjusting the turning tool position of the ultra-precision lathe according to claim 1, wherein the locking member is an adjusting screw, a long strip-shaped adjusting hole is formed in a side end face, close to the movable hinge portion (202), of the turning tool mounting seat (3), a threaded hole is formed in the position, corresponding to the long strip-shaped adjusting hole, of the movable hinge portion (202), and the adjusting screw penetrates through the long strip-shaped adjusting hole and is in threaded connection with the threaded hole.
5. The tool rest of claim 1, wherein the driving part comprises: the device comprises a transmission shaft (9), an adjusting pipe (10) and a rotary motor (11), wherein the transmission shaft (9) penetrates through the mounting hole, and one end of the transmission shaft is in transmission connection with the displacement sliding block (5); the adjusting pipe (10) is sleeved at one end, far away from the displacement slide block (5), of the transmission shaft (9) and is in threaded connection with the transmission shaft (9) through fine teeth; the output end of the rotary motor (11) is fixedly connected with the outer surface of the adjusting pipe (10).
6. The tool rest capable of adjusting the turning tool position of the ultra-precision lathe according to any one of claims 1 to 5, wherein the inclined surfaces of the hinge movable part (202) and the displacement slide block (5) are both inclined downwards towards the fixed part and have an included angle of 3 degrees to 5 degrees with the horizontal direction.
7. The ultra-precision lathe tool position adjustable tool rest according to any one of claims 1-5, characterized in that a plurality of shifting block springs (12) are further provided, each shifting block spring (12) is horizontally arranged, one end of each shifting block spring is fixed on the side end face of the shifting block (5), and the other end of each shifting block spring is fixed on the side end face of the fixing part (201) close to the shifting block (5).
8. The tool rest capable of adjusting the turning tool position of the ultra-precision lathe according to claim 7, wherein a limiting ring (13) is fixedly connected to the inner wall of the mounting hole, the limiting ring (13) is sleeved on one end of the transmission shaft (9) close to the adjusting tube (10), and the inner diameter of the limiting ring is smaller than the outer diameter of the adjusting tube (10).
9. The ultra-precision lathe tool position adjustable tool post according to claim 1, characterized in that the measuring assembly (6) comprises:
the measuring installation seat (601) is fixed on the side end face of the base (1);
a strut (602), the strut (602) being fixed to the measurement mount (601);
a dial indicator (603);
the clamping rod (604) is horizontally arranged, one end of the clamping rod (604) is movably connected to the supporting rod (602), and the dial indicator (603) is clamped at the other end of the clamping rod.
10. The ultra-precision lathe tool position adjustable tool post according to claim 1, characterized in that the structural deformation real-time monitoring component (7) comprises:
the strain gauge mounting plate (701), the strain gauge mounting plate (701) is fixed on the top end of the hinge type tool rest seat (2);
a strain gauge (702), the strain gauge (702) being fixed on the strain gauge mounting plate (701), and the strain gauge (702) being electrically connected to a strain gauge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211193252.1A CN115502428A (en) | 2022-09-28 | 2022-09-28 | Tool rest with adjustable turning tool position of ultra-precision lathe |
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| CN202211193252.1A CN115502428A (en) | 2022-09-28 | 2022-09-28 | Tool rest with adjustable turning tool position of ultra-precision lathe |
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| CN115502428A true CN115502428A (en) | 2022-12-23 |
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Cited By (2)
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| CN116900337A (en) * | 2023-09-06 | 2023-10-20 | 四川丹齿精工科技有限公司 | Positioning turning device and method for large-inner-diameter thin-wall part |
| CN117961108A (en) * | 2024-04-02 | 2024-05-03 | 吉林大学 | Height-adjustable tool rest of ultra-precision machine tool |
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