CN107838725B - Anchor clamps are processed simultaneously to a plurality of parabolic reflectors of off-axis volume adjustable - Google Patents
Anchor clamps are processed simultaneously to a plurality of parabolic reflectors of off-axis volume adjustable Download PDFInfo
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- CN107838725B CN107838725B CN201711371651.1A CN201711371651A CN107838725B CN 107838725 B CN107838725 B CN 107838725B CN 201711371651 A CN201711371651 A CN 201711371651A CN 107838725 B CN107838725 B CN 107838725B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/061—Work-clamping means adapted for holding a plurality of workpieces
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention relates to a fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis quantity, and belongs to the technical field of machine tool fixtures. The transmission assembly is installed in the clamp shell through the bearing, the ball screw has 8 and is circumference array distribution, every ball screw all is connected with bevel pinion, all be connected with ball nut on every ball screw, fixed mounting has the dish lid on the clamp shell, ring gear fixed connection in the transmission assembly is in the dish lid downside, the fine setting knob is installed in the planet carrier upper end, 8 anchor clamps slider assemblies are circumference array fixed connection on the corresponding guide rail slider of dish lid and are connected with the ball nut of downside, be equipped with V-arrangement piece on the anchor clamps slider assembly, locking device, anchor clamps slider fixed slot etc. can fix a position the clamp to the work piece. The novel processing device has the advantages that the novel processing device is novel in structure, can process a plurality of parabolic reflector workpieces simultaneously, is adjustable in off-axis quantity of the parabolic reflectors, and can process workpieces with different diameters.
Description
Technical Field
The invention belongs to the technical field of machine tool fixtures, and particularly relates to a fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis quantities.
Background
Nowadays, with the advancement of technology, the object of a parabolic mirror is increasingly used in the scientific research process and in the equipment required for daily life. However, the existing fixtures for machine tools for machining parabolic reflectors are relatively single in function, most of the existing fixtures do not have the function of adjusting the off-axis amount, and one set of fixtures can only machine parabolic reflectors with fixed off-axis amounts. Even though the existing advanced rotating surface machining clamp with adjustable off-axis amount (for example, the invention patent refers to a rotating surface precision machining clamp with adjustable off-axis amount), the precision is not high although the off-axis amount is adjustable, and only two workpieces can be machined simultaneously, so that the production efficiency is low.
Therefore, the existing parabolic reflector processing clamp cannot realize simultaneous processing of a plurality of workpieces, and is low in off-axis positioning accuracy and large in difficulty coefficient of positioning operation. Therefore, it is necessary to provide a fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis amounts, so as to overcome various defects above the existing fixture for machining the parabolic reflectors, improve positioning accuracy, improve machining efficiency and reduce production cost.
Disclosure of Invention
The invention provides a fixture for simultaneously processing a plurality of off-axis parabolic reflectors with adjustable off-axis quantity, which is used for solving the problem that the off-axis parabolic reflectors cannot be processed simultaneously in the prior art and is used for simultaneously processing the parabolic reflectors.
The invention adopts the technical proposal that: including disk cover connecting bolt, anchor clamps slider subassembly, ball, the anchor clamps casing, drive assembly and fine setting knob, drive assembly includes the ring gear, bevel pinion, the planet carrier, drive assembly passes through the central point that the bearing installed on anchor clamps casing inboard bottom plate puts, ball has 8 and is circumference array distribution, the equal fixed connection of one end of every ball on bevel pinion, the both ends of every ball all rotate and be connected with the bearing frame, bearing frame fixed connection is on the inboard bottom plate of anchor clamps casing, every ball on all be connected with ball nut, just ball nut is located between two bearing frames on the ball, the last fixed connection disk cover of disk cover through disk cover connecting bolt, the disk cover includes the guide rail slider, ring gear installation boss, ring gear fixed connection in the ring gear installation boss in the drive assembly, fine setting knob fixed mounting is in the upper end of planet carrier, and the fine setting knob is located the recess of disk cover upside central point, the slider subassembly have 8, and be circumference array distribution, 8 anchor clamps slider subassembly fixed connection is in the corresponding on the slider of disk cover side of slider, the slider is connected with the ball nut mutually.
The disc cover further comprises 16 dustproof covers, clamp slider guide rails and disc cover center holes, wherein each two dustproof covers are distributed in a group of slideway grooves of the disc cover in a circumferential array mode, one end of each dustproof cover is fixedly connected with the inner wall of each slideway groove, the other end of each dustproof cover is fixedly connected with a clamp slider assembly, the clamp mounting holes are distributed at intervals with the slideway grooves in 8 mode, a plurality of clamp slider fixing threaded holes are distributed in the two sides in the slideway grooves in a linear array mode respectively, the clamp slider guide rails are fixedly mounted in the slideway grooves through screws and are distributed in parallel with the two rows of clamp slider fixing threaded holes, the guide rail sliders are connected to the clamp slider guide rails in a sliding mode, each clamp slider guide rail is connected with two guide rail sliders, scale marks are arranged outside each slideway groove on the disc surface of the disc cover, the disc cover center holes are arranged in the center of the disc cover, and the inner gear ring mounting boss is arranged on the lower side of the disc cover.
The invention discloses a clamp sliding block assembly, which comprises a double-headed nut column end cover, two V-shaped blocks, double-headed nut columns, positioning pins, clamp sliding block fixing grooves, clamp sliding block mounting holes, locking devices, clamp knobs and central scale marks, wherein the double-headed nut columns are rotationally connected in mounting through holes of a clamp sliding block assembly main body through bearings, the double-headed nut column end cover is fixedly arranged on the left end face of the clamp sliding block assembly, two V-shaped block guide rails are fixedly arranged on two sides of a clamp sliding block assembly groove, the two V-shaped blocks are symmetrically arranged on the double-headed nut columns through threaded pairs and are in sliding connection with the V-shaped block guide rails, the positioning pins are fixedly arranged on the upper surface of the clamp sliding block assembly between the two V-shaped blocks, the clamp sliding block fixing grooves and the clamp sliding block mounting holes are respectively arranged on four corners of the clamp sliding block assembly, the clamp sliding block mounting holes are used for being connected with guide rail sliding blocks through bolts, the locking devices are rotationally arranged on the right side of the main body of the sliding block assembly, the axis of the locking devices is perpendicular to the double-headed nut column, the clamp sliding block assembly is fixedly arranged on the upper surface of the double-headed nut column, the clamp sliding block assembly is perpendicular to the surface of the main body, and the clamp sliding block is fixedly arranged on one side of the double-headed nut column and is perpendicular to the surface of the main body.
The locking device comprises a cam locking head and a cam column, wherein the cam column is fixedly arranged at the lower end of the cam locking head, and a through hole is formed in the cam locking head.
The transmission assembly further comprises a central shaft, large bevel gears, sun gears and planet wheel connecting columns, wherein 8 small bevel gears are arranged on the central shaft, each small bevel gear is meshed with the large bevel gears, the 8 small bevel gears are distributed below the large bevel gears in a circumferential array, the large bevel gears are fixedly arranged at shaft shoulders below the central shaft, the sun gears are fixedly arranged on the central shaft and positioned above the large bevel gears through the shaft shoulders, the upper end of the central shaft is rotationally connected with a planet carrier through bearings, the upper end face of the planet carrier is level with the upper end face of the central shaft, three planet wheel connecting columns are rotationally connected onto three supports of the planet carrier through bearings, the connecting positions are located in the middle of the planet wheel connecting columns, small planet wheels are fixedly arranged at the upper end of each planet wheel connecting column, the small planet wheels are meshed with the ring gear, large planet wheels are fixedly arranged at the lower end of each planet wheel connecting column, and the large planet wheels are meshed with the sun gears.
The transmission ratio between the central shaft and the planet carrier is 10, and the intersection angle between the large bevel gear and the small bevel gear is 90 degrees.
The clamp shell comprises 8 clamp mounting columns and clamp mounting bosses, wherein the 8 clamp mounting columns are distributed on a bottom plate on the inner side of the clamp shell in a circumferential array and correspond to clamp mounting holes on a disc cover one by one, and the clamp mounting bosses are arranged on the outer side of the bottom plate of the clamp shell.
The off-axis quantity adjusting device has the advantages that the structure is novel, a plurality of parabolic reflector workpieces can be simultaneously processed, the off-axis quantity of the parabolic reflectors can be adjusted, workpieces with different diameters can be processed, the problem that the off-axis quantity of a common parabolic reflector processing clamp is not adjustable or the workpieces cannot be simultaneously processed is solved, the off-axis quantity adjusting device is adjustable, the adjusting precision is high, scales are arranged on a clamp disc cover, and coarse adjustment and fine adjustment devices are arranged in the system, so that the adjusting process is convenient and quick, the workpieces can be simultaneously processed, and the off-axis parabolic reflectors with different blank diameters can be simultaneously processed under the same off-axis quantity.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the front side of the tray cover structure of the present invention;
FIG. 4 is a schematic rear side view of the disk cover structure of the present invention;
FIG. 5 is a schematic view of a clamp slider assembly of the present invention;
FIG. 6A is a schematic view of a locking device of the present invention;
FIG. 6B is a schematic view of the locking device of the present invention in an operative position;
FIG. 7 is a schematic view of the working state of the cam post of the present invention
FIG. 8 is a schematic diagram of the assembled structure of the disk cover and clamp slider assembly of the present invention;
FIG. 9 is an enlarged view of a portion of the assembly of the disk cover and clamp slider assembly of the present invention;
FIG. 10 is a schematic view of the transmission assembly of the present invention;
FIG. 11A is a schematic view of the assembled structure of the center shaft of the present invention;
FIG. 11B is a planer view of the center shaft assembly structure of the invention;
FIG. 12A is an isometric view of a clamp housing structure of the present invention;
FIG. 12B is a rear isometric view of a clamp housing structure of the present invention;
FIG. 13 is a schematic diagram of the transmission of the present invention;
FIG. 14 is a schematic view of the structure of the clamp slide assembly and ball nut of the present invention;
in the figure:
1, a disc cover connecting bolt; 2a clamp slide block assembly; 3, a disc cover; 4, a ball screw; 5 a clamp housing; 6 bearing seats; 7, a transmission assembly; 8 ball nuts; 9 fine tuning a knob; 201 double-ended nut post end cap; 202V-shaped blocks; 203 double-ended nut posts; 204 positioning pins; 205 locating a plane; 206 clamp slide block fixing grooves; 207 clamp slider mounting holes; 208 locking means; 209 clamping the knob; 210 center tick marks; 211V block guide rail; 2081 cam locking heads; 2082 cam posts; 301 a dust cap; 302 a clamp mounting hole; 303 clamp slide guide rails; 304 graduation marks; 305 clamp slide block fixing threaded holes; 306 a rail slide; 307 disk cover central hole; 308 inner gear ring mounting bosses; 501 a clamp mounting post; 502 a clamp mounting boss; 701 a central axis; 702 an inner gear ring; 703 large planet gears; 704 small planet gears; 705 bevel pinion; 706 big bevel gear; 707 sun gear; 708 a planet carrier; 709 planet wheel connection post.
Detailed Description
Fig. 1 is an exploded view of the overall structure of an embodiment of the present invention, fig. 2 is a schematic view of the overall structure of an embodiment of the present invention, a fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis amounts, which comprises a disk cover connecting bolt 1, a fixture sliding block assembly 2, a ball screw 4, a fixture housing 5, a transmission assembly 7 and a fine tuning knob 9, wherein the transmission assembly 7 comprises an inner gear ring 702, a bevel pinion 705, a planet carrier 708, the transmission assembly 7 is installed at the central position on the inner side bottom plate of the fixture housing 5 through a bearing, the ball screws 4 are distributed in 8 and in a circumferential array, one end of each ball screw 4 is fixedly connected to the bevel pinion 705, two ends of each ball screw 4 are rotatably connected with a bearing seat 6, the bearing seat 6 is fixedly connected to the bottom plate at the inner side of the fixture housing 5, each ball screw 4 is connected with a ball nut 8, the ball nuts 8 are positioned between two bearing seats 6 on the ball screw 4, the clamp shell 5 is fixedly connected with a disc cover 3 through a disc cover connecting bolt 1, the disc cover 3 comprises a guide rail slide block 306 and an inner gear ring mounting boss 308, the inner gear ring 702 in the transmission assembly 7 is fixedly connected in the inner gear ring mounting boss 308, the fine tuning knob 9 is fixedly arranged at the upper end of the planet carrier 708, the fine tuning knob 9 is positioned in a groove at the central position of the upper side of the disc cover 3, 8 clamp slide block assemblies 2 are distributed in a circumferential array, 8 clamp slide block assemblies 2 are fixedly connected on corresponding guide rail slide blocks 306 of the disc cover 3, 2 track slide blocks 306 are connected on each guide rail in a sliding manner, each clamp slide block assembly 2 is simultaneously connected with 4 track slide blocks 306, the clamp slide block assembly 2 is also connected with a connecting rod of a rolling ball nut 8 at the lower side.
The disc cover 3, as shown in fig. 3 and 4, the disc cover 3 further comprises a dust cover 301, a clamp mounting hole 302, clamp slider guide rails 303 and a disc cover center hole 307, the number of the dust covers 301 is 16, each two of the dust covers are distributed in the slideway groove of the disc cover 3 in a group of circumferential arrays, one end of each dust cover 301 is fixedly connected with the inner wall of the slideway groove, one end of each dust cover is fixedly connected with the clamp slider assembly 2, so that both ends of the slider clamp assembly 2 are provided with a protective cover 301, the telescopic direction of the protective cover 301 is the same as the moving direction of the slider clamp assembly 2, clamps can be effectively protected, chips are prevented from entering the inside of a clamp body during cutting, the clamp mounting holes 302 are distributed at intervals with the slideway groove in 8 numbers, a plurality of clamp slider fixing threaded holes 305 are distributed on both sides in the slideway groove in a linear array mode respectively, the clamp slider guide rails 303 are fixedly mounted in the slideway groove in parallel with the two rows of clamp slider fixing threaded holes 305, the clamp slider guide rails 306 are slidably connected to the clamp slider guide rails 303, each clamp slider guide rail 303 is connected with the two rows of clamp slider guide rails 306, the clamp slider guide rails are arranged on the inner sides of the two rows of the clamp slider fixing threaded holes 305, the two clamp slider guide rails 306 are connected with the two clamp slider guide rails 306, the two clamp slider guide rails 306 are arranged on the inner sides of the two rows of the clamp slider guide rails 306 are arranged on the inner sides of the clamp slider guide rails, the inner rails 306 are arranged on the inner sides of the inner grooves of the clamp rails, the inner tooth 3, the two 3 cm 3 and the inner tooth 3 cm 3, the disc cover 3 is arranged on the disc cover 3, the disc 3 is arranged on the disc cover 3, and the disc 3, the disc cover 3 is arranged on the disc cover, and the disc 3, the disc cover 3 has the disc 3 and the disc 3 has the disc cover 3.
The clamp slider assembly 2, as shown in fig. 5, the clamp slider assembly 2 comprises a double-ended nut column end cover 201, a V-shaped block 202, a double-ended nut column 203, a locating pin 204, a clamp slider fixing groove 206, a clamp slider mounting hole 207, a locking device 208, a clamping knob 209, a central scale mark 210, the double-ended nut column 203 is rotatably connected in a mounting through hole of the clamp slider assembly 2 main body through a bearing, the double-ended nut column end cover 201 is fixedly arranged on the left end face of the clamp slider assembly 2, two V-shaped block guide rails 211 are arranged, two parallel V-shaped block guide rails 211 are fixedly arranged on two sides of a groove of the clamp slider assembly 2, two V-shaped blocks 202 are symmetrically arranged on the double-ended nut column 203 through thread pairs and are in sliding connection with the V-shaped block guide rails 211, the double-ended nut column 203 is in a symmetrical structure, threads arranged on the double-ended nut column 203 are divided into two sections and have opposite rotation directions, the number of turns of the two threads is equal, namely, the two threads are symmetrical about the central interface of the double-headed nut column 203, so that the V-shaped blocks 202 connected on the double-headed nut column 203 can be synchronously drawn close to or separated from each other during the rotation of the double-headed nut column 203, the locating pin 204 is fixedly arranged on the upper surface of the clamp slide block assembly 2 in the middle of the two V-shaped blocks 202, the central line of the locating pin 204 is arranged in the central symmetrical plane of the double-headed nut column 203 and is perpendicular to the locating plane 205, the clamp slide block fixing groove 206 and the clamp slide block mounting holes 207 are respectively arranged on four corners of the clamp slide block assembly 2, the clamp slide block mounting holes are used for being connected with the guide rail slide blocks through bolts, the distance between two circle centers corresponding to the circular arcs at the two ends of the clamp slide block fixing groove 206 is slightly larger than the distance between two adjacent clamp slide block fixing threaded holes 305 on the disc cover 3, so can make anchor clamps slider subassembly 2 location in the optional position on the anchor clamps slider track 303, locking device 208 rotates the right side of installing the main part at anchor clamps slider subassembly 2, and locking device 208's axis is mutually perpendicular with double-end nut post 203, clamping knob 209 fixed mounting is on the right side of double-end nut post 203, and lie in the right-hand member face of anchor clamps slider subassembly 2 main part, be provided with anti-skidding line on the periphery of clamping knob 209, and be interior hexagonal shrinkage pool therein, just so can be through manual and spanner mode rotating double-end nut post 203, center scale mark 210 sets up the front side at anchor clamps slider subassembly 2 main part upper surface, and be mutually perpendicular with the axis of double-end nut post 203.
The locking device 208, as shown in fig. 6 and 7, the locking device 208 includes a cam locking head 2081 and a cam column 2082, the cam column 2082 is fixedly installed at the upper end of the cam locking head 2081, a through hole is formed in the cam locking head 2081, the locking device 208 is rotated by inserting a iron rod into the through hole and increasing a force arm, the axis of the locking device 208 is perpendicular to the axis of the double-headed nut column 203, the minimum distance between the axis of the locking device 208 and the outer circumferential surface of the double-headed nut column is H, the maximum radius of the cross section of the cam column 2082 is R, when the locking device 208 is in an unclamped state, the locking device 208 is not contacted with the double-headed nut column 203, when the locking device 208 is rotated by 45 degrees along a clockwise line, the locking device 208 is in a locked state, assuming that the deformation amount of the double-headed nut column 2082 is H when in the locked state, the locking device 208 is self-locked, at the moment, the double-headed nut column 203 is in the locked state, and does not rotate in the axial direction, so that the workpiece is clamped.
The transmission assembly 7, as shown in fig. 10 and 11, the transmission assembly 7 further comprises a central shaft 701, a large bevel gear 706, a sun gear 707, a plurality of planet gear connecting columns 709, wherein 8 small bevel gears 705 are meshed with the large bevel gear 706, the 8 small bevel gears 705 are distributed below the large bevel gear 706 in a circumferential array, the large bevel gear 706 is fixedly installed at a shaft shoulder below the central shaft 701, the sun gear 707 is fixedly installed on the central shaft 701, the sun gear 707 is located above the large bevel gear 706 and positioned through the shaft shoulder, the upper end of the central shaft 701 is rotatably connected with a planet carrier 708 through a bearing, the upper end face of the planet carrier 708 is flush with the upper end face of the central shaft 701, three planet gear connecting columns 709 are connected to the three supports of the planet carrier 708 through bearings, the connecting positions are in the middle of the planet gear connecting columns 709, the small planet gears 704 are fixedly installed at the upper end of each planet gear connecting column 709, the small planet gears 702 are meshed with the inner gear ring 702, the large bevel gear 703 are fixedly installed at the lower end of each planet gear connecting column 709, the upper end of the large bevel gear 703 is meshed with the planet gears 709, and the upper end of the sun gear 709 is meshed with the planet gear 706, the planet gears 709 are meshed with the planet gears 706, and the transmission angle between the sun gear 709 and the sun gear 709 is 90 degrees between the planet gears and the planet carrier 706 is 90.
The fixture housing 5, as shown in fig. 12, the fixture housing 5 includes 8 fixture mounting posts 501 and fixture mounting bosses 502, the fixture mounting posts 501 are distributed on the bottom plate of the inner side of the fixture housing 5 in a circumferential array, and correspond to the fixture mounting holes 302 on the tray cover 3 one by one, and the fixture mounting bosses 502 are arranged on the outer side of the bottom plate of the fixture housing 5.
As shown in the transmission schematic diagram of fig. 13, the upper end of the central shaft 701 is provided with an inner hexagonal groove, the fine tuning knob 9 with a hollow middle part is sleeved at the upper end of the planet carrier 708, the central shaft 701 can rotate through a hexagonal wrench, the central shaft drives the big bevel gear 706, the big bevel gear 706 drives the 8 small bevel gears 705 to synchronously rotate, so that the ball screw 4 rotates, the 8 clamp slide block assemblies 2 synchronously move under the drive of the ball nut 8, the planet carrier 708 can be driven to rotate through rotating the fine tuning knob 9, the central shaft 701 is driven to rotate through the transmission of the planetary gear train, and the central shaft 701 rotates for one circle after ten circles of rotation of the fine tuning knob 9, so that the purpose of fine tuning is achieved, and the off-axis quantity is ensured to reach high enough precision.
The working process of the fixture for simultaneously machining the plurality of parabolic reflectors with the adjustable off-axis quantity is as follows:
firstly, through the fixture mounting hole 302, the fixture mounting column 501, the fixture mounting boss 502, use special stock bolt with this anchor clamps are fixed on the lathe main shaft accurately, observe the position of central graduation mark 210 on the anchor clamps slider subassembly 2 on graduation mark 304, use the allen wrench rotation center pin 701, move 8 anchor clamps slider subassemblies 2 near the graduation that the reservation off-axis quantity corresponds to in step fast, realize the coarse adjustment to anchor clamps slider subassembly 2 position, observe the position of central graduation mark 210 on graduation mark 304 on anchor clamps slider subassembly 2 and rotate fine setting knob 9, make central graduation mark 210 accurately aim at the target graduation, accomplish the fine setting process, through the lock bolt in the anchor clamps slider fixed slot 206 with anchor clamps slider subassembly 2's position fixing, the coarse adjustment is in-process spanner and the fine setting in-process the direction of fine setting knob should keep unanimous, and can not reverse rotation, can avoid the error that the reverse clearance of screw thread etc. brings, will wait to process the work piece through locating pin 204 and locating plane 205 realize the clamp by hand or with the rotation of allen wrench 209 to the work piece, through the spanner 208 from this, can meet the demand of extra circumference of the off-axis meter from the position of the outer micrometer 208, can be satisfied by the off-axis meter, if the demand of the off-axis meter is high, can be satisfied in proper order, the demand of the self-axis meter is realized, the precision is realized, for the work piece is being clamped by the outer, and the tool is by the outer diameter is adjusted, for example, and the outer micrometer is can be adjusted.
Claims (4)
1. A fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis quantity is characterized in that: the device comprises a disc cover connecting bolt, a clamp sliding block assembly, ball screws, a clamp shell, a transmission assembly and a fine adjustment knob, wherein the transmission assembly comprises an annular gear, a bevel pinion and a planet carrier, the transmission assembly is arranged at the central position on the bottom plate on the inner side of the clamp shell through a bearing, 8 ball screws are distributed in a circumferential array, one end of each ball screw is fixedly connected to the bevel pinion, two ends of each ball screw are rotatably connected with bearing seats, the bearing seats are fixedly connected to the bottom plate on the inner side of the clamp shell, ball nuts are connected to each ball screw, the ball nuts are positioned between the two bearing seats on the ball screws, the clamp shell is fixedly connected with a disc cover through the disc cover connecting bolt, the disc cover comprises guide rail sliding blocks and an annular gear mounting boss, the annular gear in the transmission assembly is fixedly connected to the annular gear mounting boss, the fine adjustment knob is fixedly arranged at the upper end of the planet carrier and positioned in a groove on the central position on the upper side of the disc cover, 8 clamp sliding block assemblies are distributed in a circumferential array, and the 8 clamp sliding block assemblies are fixedly connected to the corresponding guide rail sliding blocks on the disc cover and the connecting rods are connected to the ball nuts;
the transmission assembly further comprises a central shaft, large bevel gears and sun gears, wherein 8 small bevel gears are arranged, each small bevel gear is meshed with the large bevel gears, the 8 small bevel gears are distributed below the large bevel gears in a circumferential array, the large bevel gears are fixedly arranged at shaft shoulders below the central shaft, the sun gears are fixedly arranged on the central shaft and positioned above the large bevel gears through the shaft shoulders, the upper end of the central shaft is rotationally connected with a planet carrier through a bearing, the upper end face of the planet carrier is flush with the upper end face of the central shaft, three planet connecting posts are rotationally connected onto three supports of the planet carrier through bearings, the connecting positions are located in the middle of the planet connecting posts, small planet gears are fixedly arranged at the upper end of each planet connecting post and meshed with an inner gear ring, large planet gears are fixedly arranged at the lower end of each planet connecting post, and the large planet gears are meshed with the sun gears;
the transmission ratio between the central shaft and the planet carrier is 10, and the intersection angle between the large bevel gear and the small bevel gear is 90 degrees;
the fixture shell comprises 8 fixture mounting columns and fixture mounting bosses, wherein the fixture mounting columns are distributed on a bottom plate on the inner side of the fixture shell in a circumferential array mode and correspond to fixture mounting holes on the disc cover one by one, and the fixture mounting bosses are arranged on the outer side of the bottom plate of the fixture shell.
2. The fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis according to claim 1, wherein: the disc cover further comprises a dust cover, clamp mounting holes, clamp slider guide rails and disc cover center holes, the number of the dust covers is 16, each two dust covers are distributed in a set of slideway grooves of the disc cover in a circumferential array mode, one end of each dust cover is fixedly connected with the inner wall of each slideway groove, one end of each dust cover is fixedly connected with a clamp slider assembly, the clamp mounting holes are distributed alternately with the slideway grooves in 8 mode, a plurality of clamp slider fixing threaded holes are distributed on two sides in the slideway grooves in a linear array mode respectively, the clamp slider guide rails are fixedly mounted in the slideway grooves through screws and are distributed in parallel with the two rows of clamp slider fixing threaded holes and are located on the inner sides of the two rows of clamp slider fixing threaded holes, the guide rail sliders are slidably connected to the clamp slider guide rails, scale marks are arranged outside each slideway groove on the disc surface of the disc cover, the disc cover center holes are formed in the center of the disc cover, and the inner gear ring mounting bosses are arranged on the lower side of the disc cover.
3. The fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis according to claim 1, wherein: the fixture slide block assembly comprises a double-headed nut column end cover, V-shaped blocks, double-headed nut columns, positioning pins, fixture slide block fixing grooves, fixture slide block mounting holes, locking devices and clamping knobs, wherein the double-headed nut columns are rotationally connected in mounting through holes of a fixture slide block assembly main body through bearings, the double-headed nut column end cover is fixedly mounted on the left end face of the fixture slide block assembly, the V-shaped block guide rails are two, two parallel V-shaped block guide rails are fixedly mounted on two sides of a fixture slide block assembly groove, the V-shaped blocks are symmetrically mounted on the double-headed nut columns through threaded pairs and are in sliding connection with the V-shaped block guide rails, the positioning pins are fixedly mounted on the upper surface of the fixture slide block assembly in the middle of the two V-shaped blocks, the fixture slide block fixing grooves and the fixture slide block mounting holes are respectively arranged on four corners of the fixture slide block assembly, the fixture slide block mounting holes are used for being connected with guide rail slide blocks through bolts, the locking devices are rotationally mounted on the right side of the fixture slide block assembly main body, the axis of the locking devices is perpendicular to the double-headed nut column, the clamping knobs are fixedly mounted on one side of the double-headed nut slide block assembly main body, the clamping knobs are fixedly mounted on the upper surface of the two sides of the double-headed nut slide block assembly, and the clamping slide block assembly is perpendicular to the surface of the main body.
4. A fixture for simultaneously machining a plurality of parabolic reflectors with adjustable off-axis according to claim 3, wherein: the locking device comprises a cam locking head and a cam column, wherein the cam column is fixedly arranged at the lower end of the cam locking head, and a through hole is formed in the cam locking head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371651.1A CN107838725B (en) | 2017-12-18 | 2017-12-18 | Anchor clamps are processed simultaneously to a plurality of parabolic reflectors of off-axis volume adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN108340178A (en) * | 2018-04-25 | 2018-07-31 | 河南恒华科技有限公司 | A kind of fixture for irregular product |
| CN108942567A (en) * | 2018-08-14 | 2018-12-07 | 天长市永鑫制冷设备有限公司 | Telescopic hand-held burnishing device |
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| CN109093548B (en) * | 2018-10-26 | 2020-12-01 | 贵州长江汽车有限公司 | Adjustable spanner |
| CN109605249B (en) * | 2019-01-16 | 2020-12-15 | 浙江恒嘉轴承有限公司 | Clamping device convenient for clamping and fixing bearing workpieces with different diameters |
| CN110587338B (en) * | 2019-09-27 | 2021-05-07 | 深圳市普瑞科斯电子有限公司 | Workbench for die machining |
| CN111037329A (en) * | 2019-12-24 | 2020-04-21 | 深圳市宝之鑫机械有限公司 | Pressure head base |
| CN111673207B (en) * | 2020-06-18 | 2021-09-07 | 太谷县祥鑫智能机械制造有限公司 | Tapping and processing device for manufacturing steel bar sleeve |
| CN111687499B (en) * | 2020-06-18 | 2021-11-12 | 安徽金煌建设集团有限公司 | Manufacturing and processing technology of steel bar sleeve |
| CN112658738A (en) * | 2020-12-31 | 2021-04-16 | 象山广业机械有限公司 | Clamping device capable of fixing various models of molds and preventing high-temperature processing |
| CN114102974B (en) * | 2021-11-22 | 2023-09-01 | 常州工学院 | Processing device and method for off-axis parabolic reflector |
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