CN113477991B - Processing equipment for high-speed multi-edge curved surface column parts - Google Patents
Processing equipment for high-speed multi-edge curved surface column parts Download PDFInfo
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- CN113477991B CN113477991B CN202110748293.1A CN202110748293A CN113477991B CN 113477991 B CN113477991 B CN 113477991B CN 202110748293 A CN202110748293 A CN 202110748293A CN 113477991 B CN113477991 B CN 113477991B
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- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 230000001360 synchronised effect Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 32
- 230000007306 turnover Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 3
- 230000033001 locomotion Effects 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 8
- 230000010405 clearance mechanism Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 230000017105 transposition Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C1/00—Milling machines not designed for particular work or special operations
- B23C1/08—Milling machines not designed for particular work or special operations with a plurality of vertical working-spindles
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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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/04—Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
- B23Q16/06—Rotary indexing
-
- 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
-
- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a processing device of a high-speed multi-edge curved surface column part, which comprises a supporting seat, a rotary platform, a driving device, a cutting device and a clamping deflection device, wherein the supporting seat is arranged on the rotary platform; the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate; the rotary platform is provided with a profiling plate, a plurality of protrusions are arranged at intervals on the periphery of the profiling plate, and the edges of the protrusions are in smooth transition; the clamping position changing devices are arranged on the rotary platform at intervals and are arranged at the same circumference; a clamping position changing device is arranged between the two protrusions, and a cutting device is arranged beside each clamping position changing device; each clamping displacement device comprises a clamping part for clamping a part to be processed and a poking part which drives the part to be processed to turn over a certain angle in a stepping way and independently works; the plurality of poking parts synchronously overturn the part to be processed through a synchronous angle modulation transmission mechanism arranged on the rotary platform. The two clamping and shifting devices are high in production efficiency, can adapt to the processing requirements of different product sizes, and meet the requirements of product diversity.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a machining device for a high-speed multi-edge curved column part
Background
In the current enterprise production, the production equipment for processing the six-edge curved surface column part (shown in fig. 1) is mainly a profiling milling machine or a numerical control machine tool.
The Chinese patent 'double-station profiling milling machine', grant bulletin No. CN103302339B, grant bulletin No. 2015.05.20, discloses a double-station profiling milling machine, which comprises a frame, front and rear guide rails, left and right guide rails, a lifting operation mechanism and a machine head; the frame is provided with a workbench, and the workbench is provided with a compression cylinder; a profiling plate is arranged between the left guide rail and the right guide rail; the machine head comprises a milling cutter, a main shaft box and a motor, and is arranged on the front guide rail and the rear guide rail and is positioned above the workbench; the lifting operation mechanism is arranged on the workbench, the double-station profiling milling machine further comprises an upper pneumatic transposition mechanism and a lower pneumatic transposition mechanism, the upper pneumatic transposition mechanism and the lower pneumatic transposition mechanism comprise a vertical guide rail, a lifting cylinder and a gas spring, the vertical guide rail is connected with a left guide rail and a right guide rail, the vertical guide rail, a front guide rail, a rear guide rail and the left guide rail are mutually perpendicular, and the lifting cylinder and the gas spring are arranged below the vertical guide rail.
In the prior art, a device can only process one part for a period of time, and the product size is changed, so that the copying source workpiece is required to be manufactured again manually or numerical control programming is required to be performed again, and the efficiency is low in mass production.
Disclosure of Invention
Aiming at the problems existing in the background technology, the invention aims to provide the processing equipment for processing a plurality of parts in the same time, which has high production efficiency and can adapt to the production requirements of different product sizes.
In order to achieve the above object, the present invention provides a processing apparatus for a high-speed polygonal curved column part, comprising:
the device comprises a supporting seat, a rotating platform, a driving device, a cutting device and a clamping and shifting device;
the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate;
the rotary platform is provided with a profiling plate, a plurality of protrusions are arranged on the periphery of the profiling plate at intervals, and the edges of the protrusions are in smooth transition;
the clamping position changing devices are arranged on the rotary platform at intervals and are arranged at the same circumference; a clamping position changing device is arranged between the two protrusions, and a cutting device is arranged beside each clamping position changing device;
each clamping displacement device comprises a clamping part for clamping a part to be processed and a poking part which drives the part to be processed to turn over step by step for a certain angle and independently works;
the stirring parts synchronously turn over the part to be processed through a synchronous angle modulation transmission mechanism arranged on the rotary platform;
the cutting edge of each cutting device is positioned between two protrusions, can be far away from the part to be processed under the pushing of the protrusions, and is reset under the action of the reset piece.
Preferably, the angle alpha=360°/n of each turn of the part to be processed is the number of edges of the multi-edge curved column part.
Preferably, the stirring part comprises a stirring rod and a ratchet intermittent mechanism; one end of the deflector rod is connected with the ratchet intermittent mechanism, and the other end of the deflector rod swings under the drive of the synchronous angle modulation transmission mechanism; when the deflector rod is positioned at the limit position of swinging, the ratchet clearance mechanism is stirred to rotate by an angle alpha, and the ratchet clearance mechanism drives the part to be processed on the clamping part to turn over by the angle alpha.
Further preferably, the synchronous angle modulation transmission mechanism comprises a synchronous motor, a synchronous transmission belt, a plurality of racks and a plurality of transmission mechanisms; each rack is clamped with a deflector rod; one end of each transmission mechanism is meshed with a rack, and the other end is meshed with a synchronous transmission belt; the synchronous motor is driven by the synchronous driving belt through the driving mechanism to enable all racks to do linear reciprocating motion synchronously, and then all the deflector rods are driven to swing.
Still further preferably, a notch is arranged on the back surface of the rack, and the notch is clamped with the deflector rod.
Further preferably, the ratchet intermittent mechanism comprises a ratchet shell connected with the end part of the deflector rod, a ratchet fixedly connected with the ratchet shell, a pawl matched with the ratchet, a check pawl for limiting the reverse movement of the ratchet and a pawl spring for resetting the pawl; the ratchet wheel is connected with the clamping mechanism through the synchronous mechanism; the ratchet wheel is provided with 360 DEG/alpha ratchet teeth. When the deflector rod swings from the initial position to the limit position, the ratchet shell is driven to rotate by an alpha angle, at the moment, the ratchet synchronously rotates by the alpha angle, the travel of the ratchet is limited by the pawl and the non-return pawl, and meanwhile, the synchronous mechanism is utilized to drive a part to be processed on the clamping mechanism to turn over the alpha angle.
Still further preferably, the clamping mechanism comprises a base frame fixedly connected with the rotary platform, a fixed clamping plate fixed on one side of the base frame, and a movable clamping plate capable of sliding on the base frame, wherein a compression spring is arranged between the movable clamping plate and the base frame; the part to be processed is clamped between the fixed clamping plate and the movable clamping plate; the pawl is rotationally connected with the fixed clamping plate through the connecting shaft.
Still more preferably, the synchronizing mechanism comprises a driving synchronizing wheel fixedly connected with the connecting shaft, a rotary thimble arranged on the fixed clamping plate and a driven synchronizing wheel fixedly connected with the rotary thimble; and the synchronous belt is connected with the driving synchronous wheel and the driven synchronous wheel.
Preferably, the driving mechanism comprises a motor arranged on the supporting seat, a driving gear connected with an output shaft of the motor, and a driven gear meshed with the driving gear and fixedly arranged on the rotary platform.
Preferably, the cutting device comprises a fixed upright post arranged beside the supporting seat, a swinging cross beam rotationally connected with the top of the fixed upright post, a cutting motor arranged at one end of the swinging cross beam, and a cutter connected with the output end of the cutting motor; the middle part of the swing beam is provided with a follow-up rod parallel to the fixed upright post; one end of the follow-up rod is connected with the swing beam, and the other end of the follow-up rod is connected with the side wall of the supporting seat through a tension spring; the cutting edge of the cutter is far away from the part to be processed when the protrusion pushes the follower rod, and is reset under the action of the tension spring.
Preferably, the top surface of the supporting seat is provided with an annular guide rail, the bottom surface of the rotating platform is provided with a plurality of sliding blocks, and the sliding blocks are provided with sliding grooves matched with the annular guide rail.
The beneficial effects of the invention are as follows: six workpieces can be processed continuously by one-time feeding, and the production efficiency is high; the clamping deflection device can adapt to the processing requirements of different product sizes, and meets the requirements of product diversity.
Drawings
FIG. 1 is a schematic perspective view of a part to be machined
FIG. 2 is a schematic perspective view of the present invention
FIG. 3 is a schematic view in partial section of the present invention
FIG. 4 is a schematic view of the cutting device of the present invention
FIG. 5 is a schematic view of a clamping and displacing device according to the present invention
FIG. 6 is a side view of the clamping and indexing device of the present invention
Fig. 7 is a schematic diagram of a synchronous angle modulation transmission structure of the present invention
FIG. 8 is a schematic top view of the present invention
FIG. 9 is a schematic view of the structure of the driving device
FIG. 10 is a partial schematic view of a top view of the present invention
FIG. 11 is a schematic bottom view of the present invention
FIG. 12 is a schematic view of the working state of the present invention
Detailed Description
The following describes the technical solution of the present invention (including the preferred technical solution) in further detail by way of fig. 2 to 12 and by way of illustrating some alternative embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 2 and 8, the processing apparatus for a high-speed multi-edge curved column part according to the present invention includes: a support seat 001, a rotary platform 002, a driving device, a cutting device 100, and a clamping and shifting device 200;
the supporting seat 001 is used as an annular base of the equipment to be fixed; install the annular guide rail 009 on the supporting seat 001, be equipped with the slider 010 with the annular guide rail 009 adaptation on the rotary platform 002, see the fig. 3 and show, rotary platform 002 is connected with the supporting seat 001 rotation through slider 010 and annular guide rail 009, be equipped with driven gear 006 and former 003 on the rotary platform 002, drive arrangement is including establishing the gear motor 008 on the supporting seat 001, the driving gear 006 is connected to gear motor 008's output, when driving gear 006 is rotatory under the gear motor 008 drive, drive rotary platform 002 and former 003 whole rotary motion through gear engagement driven gear 005 beginning rotation.
A plurality of clamping displacement devices 200 are fixed on the rotary platform 002 at intervals and are arranged at the same circumference, and perform rotary motion together with the rotary platform 002, and each clamping displacement device 200 is installed between the connected protruding portions (flat ring portions) of the profiling plate 003, and a cutting device 100 is arranged beside each clamping displacement device 200, as shown in fig. 8.
Each clamping and shifting device 200 comprises a clamping part for clamping a part to be processed and a poking part which drives the part to be processed to turn over step by step for a certain angle and independently works; the plurality of poking parts synchronously overturn the part to be processed through a synchronous angle modulation transmission mechanism 400 arranged on the rotary platform 002; the angle α=360°/n of each turn of the part to be machined is the number of edges of the multi-edge curved-surface cylindrical part, in this case n=6, α=60°. The stirring part comprises a stirring rod 310 and a ratchet intermittent mechanism 300; one end of the deflector rod 310 is connected with the ratchet intermittent mechanism 300, and the other end swings under the drive of the synchronous angle modulation transmission mechanism 400; when the deflector rod 310 is positioned at the limit position of swinging, the ratchet clearance mechanism 300 is shifted to rotate by an angle alpha, and the ratchet clearance mechanism 300 drives the part to be processed on the clamping part to turn over by the angle alpha.
The synchronous angle modulation transmission mechanism 400 comprises a synchronous motor 402, a synchronous transmission belt 401, a plurality of racks 403 and a plurality of transmission mechanisms; each rack 403 is clamped with a shift lever 301; one end of each transmission mechanism is meshed with a rack 403, and the other end is meshed with a synchronous transmission belt 401; the synchronous motor 402 is driven by the synchronous driving belt 401 through the driving mechanism to make each rack 403 do linear reciprocating motion synchronously, so as to drive each shift lever 301 to swing. The synchronous angle modulation transmission mechanism 400 is fixedly arranged on the rotary platform 002, and the synchronous motor 402 is arranged at the center of the rotary platform 002 as shown in fig. 2. The transmission mechanism comprises a gear 404, a transmission shaft 405, a synchronizing wheel 406 and a bracket 407; the transmission shaft 405 is fixed through a mounting hole preset on the rotary platform 002, one end of the transmission shaft 405 is fixed with a synchronizing wheel 406, the other end is connected with a gear 404, and the gear 404 is meshed with a rack 403 which is also mounted on the rotary platform 002. And a notch groove is formed on the back of the rack 403 to drive the shift lever 301 to swing.
The intermittent ratchet mechanism 300 comprises a ratchet housing 305 connected with the end of a deflector rod 310, a ratchet 302 fixedly connected with the ratchet housing 305, a pawl 304 matched with the ratchet 302, a non-return pawl 307 limiting the reverse movement of the ratchet 302, and a pawl spring 303 resetting the pawl 304; the ratchet wheel 302 is connected with the clamping mechanism through a synchronous mechanism; the ratchet 302 is provided with 360/alpha ratchet teeth, in this case 6 ratchet teeth. When the deflector rod 310 swings from the initial position to the limit position, the ratchet shell is driven to rotate by an angle alpha, at the moment, the ratchet synchronously rotates by the angle alpha, the travel of the ratchet is limited by the pawl and the non-return pawl, and meanwhile, the synchronous mechanism is utilized to drive a part to be processed on the clamping mechanism to turn over the angle alpha.
The positive and negative rotation of the synchronous motor 402 in the synchronous angle modulation transmission mechanism 400 finally causes each gear 404 to rotate clockwise or anticlockwise correspondingly through the power transmission of the synchronous transmission belt 401. And clockwise (counter) rotation of the gear 404 drives the rack 403 to perform linear reciprocating motion in the direction shown by the arrow in fig. 10. The linear reciprocating motion of the rack 403 drives the deflector rod 301 to swing and reset through the notch groove on the back surface of the rack 403.
In the internal structure of the clamping and shifting device 200, a deflector rod 310 is fixedly connected with a ratchet shell 305, and a pawl 304 and a pawl spring 303 are fixedly arranged in the ratchet shell 305; referring to fig. 6, a ratchet 302 is coaxially coupled to a driving synchronizing wheel 301 via a connecting shaft 306, and the driving synchronizing wheel 301 transmits power to a driven synchronizing wheel 206 via a timing belt 207. And driven synchronizing wheel 206 is coupled to rotating shaft 204. Thus, when the ratchet 302 rotates by a certain angle, the final rotation shaft 204 will grip the workpiece to rotate by the same angle.
In the example of fig. 6, rotation of the gear 404 causes the lever 301 to move in the direction of arrow 1, causing the ratchet housing 305 to move clockwise (as shown), which causes the pawl 304 fixedly mounted therein to move synchronously clockwise while the ratchet 302 is stationary relative to the pawl 304. In this example, adjusting the forward and reverse rotation time of the driving motor 402 causes the shift lever 301 to move once in the direction of arrow 1, which drives the ratchet housing 305 to move clockwise by 60 degrees, the pawl 304 installed in the ratchet housing 305 must also rotate clockwise by 60 degrees in synchronization, while 6 ratchet teeth are uniformly distributed in the ratchet 302, the inter-ratchet angle is 60 degrees, so that the pawl 304 must pass over one ratchet tooth in synchronization by 60 degrees, when the ratchet housing 305 moves clockwise, the high pair of curved surfaces of the pawl 304 following rotation and the curved surfaces of the ratchet teeth will cause the ratchet 302 to have a clockwise rotation tendency, but the ratchet 302 only has a counterclockwise rotation possibility as shown by 6 diagrams due to the existence of the check pawl 306 which prevents the clockwise movement of the ratchet 302. Therefore, the ratchet 302 cannot be driven to rotate clockwise after the curved surface of the pawl 304 contacts with the high pair of curved surfaces of the ratchet. Because of the curved surface of the pawl 304, the pawl spring 303 is compressed, so that the pawl 304 rotates clockwise and lifts upwards, curved surface extrusion does not exist after bypassing the ratchet, the pawl spring 303 returns to rebound, the rotation direction of the driving motor 402 is changed, the deflector rod 301 moves along the arrow 2 direction, the ratchet shell 305 moves anticlockwise as a result of the action, the pawl 304 dials a ratchet motion anticlockwise, the ratchet 302 rotates anticlockwise by 60 degrees, and finally the rotating shaft 204 clamps the workpiece to rotate by 60 degrees.
The function of the ratchet shift assembly 200 in the above analysis is two:
1. workpieces with different lengths can be clamped and fastened in the processing process; the clamping distance between the movable clamping plate 203 and the fixed clamping plate 205 is elastically adjustable due to the elastic compression of the compression spring 202, and workpieces with different lengths can be accommodated;
2. during the processing, the workpiece rotates by 60 degrees as long as the deflector rod 301 is driven by the racks to sequentially move for one round along the arrows 1 and 2.
The total of 6 cutting assemblies 100 are arranged outside the supporting seat 001, and the follower rod 105 is flexibly connected with the supporting seat 001 through a tension spring 004. The cutting motor 103 is connected with the cutter 104 and is arranged on the swinging beam 102, and the swinging beam 102 is arranged on the fixed upright post 101 and can rotate around the fixed upright post 101 when no external force is restrained. As shown in fig. 2 and 8, since the protruding portions and the flat ring portions on the cam 003 are alternately arranged, when the cam 003 rotates clockwise with the rotary platform 002, the protruding portions and the flat ring portions alternately act on the follower rod 105: when the protruding portion acts on the follower rod 105, the protruding portion presses the follower rod 105 to enable the swing beam 102 to swing away from the rotating platform 002 along the arrow 4 direction in fig. 10, and the cutter 104 mounted on the swing beam 102 is also away from the rotating platform 002, so that the cutter 104 cannot process a workpiece mounted on the ratchet shifting assembly 200, and the tension spring 004 is in a stretched state; as the rotary table 002 rotates, the protruding portion moves away from the follower rod 105 and the flat ring portion starts to approach the follower rod 105, the swing beam 102 is turned toward the rotary table 002 in the direction of arrow 3 in fig. 10 due to the rebound of the tension spring 004, and the ratchet shift assembly 200 is mounted at the portion of the cam plate 003 Ping Huan, so that the tool 104 mounted on the swing beam 102 also approaches the rotary table 002, and the tool 104 can process the workpiece mounted on the ratchet shift assembly 200.
In fig. 11, 6 cutting assemblies 100 are distributed at intervals of 50 degrees with the rotary platform 002 as a central axis, so that the follower rod 105 on each cutting assembly 100 can synchronously leave or contact the protruding portion and the flat ring portion, and thus, 6 cutters 104 can synchronously contact 6 workpieces for processing or finish processing away from the workpieces.
The working flow is as follows:
1. before the apparatus is started, follower rod 105 on each cutting assembly 100 is in direct contact with the raised portion on cam 003, as shown in fig. 12; the pressing of the follower rod 105 by the projection portion at this time brings the swing beam 102 away from the rotary table 002, the cutter 104 mounted on the swing beam 102 is also away from the rotary table 002,
the blanks are respectively arranged on 6 ratchet wheel deflection assemblies 200, and a gear motor 008 and a cutting motor 103 are started to drive a driving gear 006 and a cutter 104 to rotate;
2. because of the gear engagement transmission, the driving gear 006 drives the driven gear 005 to start rotating, and then drives the rotary platform 002 and the cam 003 and each ratchet wheel deflection assembly 200 installed on the rotary platform 002 to integrally perform rotary motion;
3. before starting; the follower rod 105 of each cutting assembly 100 is in direct contact with the protruding part of the profiling plate 003, the extrusion of the follower rod 105 by the protruding part makes the swinging cross beam 102 far away from the rotating platform 002, the cutter 104 mounted on the swinging cross beam 102 also far away from the rotating platform 002, and the ratchet wheel deflection assembly 200 is not mounted at the protruding part, so that the cutter 104 does not need cutting, and the tension spring 004 is in a stretched state;
4. the horizontal rotation of the rotating platform 002 continues, the 6 flat ring portions of the cam 003 are all gradually and respectively close to the 6 follower rods 105, and due to the rebound effect of the 6 tension springs 004, the 6 swinging beams 102 and the respective rotating cutters 104 on the 6 swinging beams are also close to the workpiece blank clamped by the 6 ratchet shifting assemblies 200 just mounted on the flat ring portions of the cam 003, and machining and cutting are performed on the workpiece blank. The cutter 104 at the 6 positions simultaneously carries out one-cutter processing on the corresponding 6 workpiece blanks, and the workpiece blanks are driven by the rotary platform 002 to rotate all the time in the cutting process, so that the processed surface after cutting is a curved surface;
5. after the first knife is machined, the rotating platform 002 continues to rotate, the contact part between the 6 follower rod 105 and the cam 003 transits from the flat ring part to the protruding part, and in this process, the positive and negative rotation of the driving motor 402 in the synchronous angle modulation transmission mechanism 400 finally makes each gear 404 rotate clockwise or anticlockwise through the power transmission of the synchronous transmission belt 401. And clockwise (counter) rotation of the gear 404 causes the rack 403 to reciprocate linearly. The linear reciprocating motion of the rack 403 drives the shift lever 301 to rotate and reset through the notch groove on the back surface of the rack 403. Further, 6 workpieces are simultaneously rotated by 60 degrees through the ratchet intermittent angle adjusting mechanism 300;
6. along with the rotation of the rotating platform 002, the flat ring parts at 6 positions on the profiling plate 003 are gradually and respectively close to the 6 follow-up rods 105, the steps of 4, 5 and 6 are sequentially repeated, and after the rotating platform 002 completes one circle of rotation, each cutter 104 sequentially carries out primary surface machining on 6 workpiece blanks clamped by the 6 ratchet wheel deflection assemblies 200; as a result of the 6 tools, a total of 6*6 =36 curved surfaces are machined;
7. in the example, the six-edge curved surface column part is processed, 6 cutters are used for simultaneously processing 6 workpieces, and the rotating platform 002 can be completely processed into the required six-edge curved surface column part only by rotating for one circle, and 6 workpiece blanks clamped on the 6 ratchet wheel deflection assemblies 200;
8. after the rotary platform 002 completes one rotation, the workpiece blank is processed into a six-edge curved surface column part, and the machine is stopped for discharging. It will be readily understood by those skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention and that various modifications, combinations, substitutions, improvements, etc. may be made without departing from the spirit and principles of the invention.
Claims (4)
1. The processing equipment of high-speed polygon curved surface column part, characterized by includes:
the device comprises a supporting seat, a rotating platform, a driving device, a cutting device and a clamping and shifting device;
the rotary platform is rotationally connected with the supporting seat, and the driving device drives the rotary platform to rotate;
the rotary platform is provided with a profiling plate, a plurality of protrusions are arranged on the periphery of the profiling plate at intervals, and the edges of the protrusions are in smooth transition;
the clamping position changing devices are arranged on the rotary platform at intervals and are arranged at the same circumference; a clamping position changing device is arranged between the two protrusions, and a cutting device is arranged beside each clamping position changing device;
each clamping displacement device comprises a clamping part for clamping a part to be processed and a poking part which drives the part to be processed to turn over step by step for a certain angle and independently works;
the stirring parts synchronously turn over the part to be processed through a synchronous angle modulation transmission mechanism arranged on the rotary platform;
the cutting edge of each cutting device is positioned between two protrusions, can be far away from a part to be processed under the pushing of the protrusions, and is reset under the action of a reset piece;
the angle alpha=360 degrees/n of each turn of the part to be processed is the number of edges of the multi-edge curved surface column part;
the stirring part comprises a stirring rod and a ratchet intermittent mechanism; one end of the deflector rod is connected with the ratchet intermittent mechanism, and the other end of the deflector rod swings under the drive of the synchronous angle modulation transmission mechanism; when the deflector rod is positioned at the limit position of swing, the ratchet clearance mechanism is stirred to rotate by an angle alpha, and the ratchet clearance mechanism drives the part to be processed on the clamping part to turn over by the angle alpha;
the synchronous angle modulation transmission mechanism comprises a synchronous motor, a synchronous transmission belt, a plurality of racks and a plurality of transmission mechanisms; each rack is clamped with a deflector rod; one end of each transmission mechanism is meshed with a rack, and the other end is meshed with a synchronous transmission belt; the synchronous motor is driven by the synchronous driving belt through the driving mechanism to enable all racks to do linear reciprocating motion synchronously, so as to drive all driving levers to swing;
the ratchet intermittent mechanism comprises a ratchet shell connected with the end part of the deflector rod, a ratchet fixedly connected with the ratchet shell, a pawl matched with the ratchet, a check pawl for limiting the reverse movement of the ratchet and a pawl spring for resetting the pawl; the ratchet wheel is connected with the clamping mechanism through the synchronous mechanism; the ratchet wheel is provided with 360 degrees/alpha ratchet teeth;
the ratchet intermittent mechanism comprises a ratchet shell connected with the end part of the deflector rod, a ratchet fixedly connected with the ratchet shell, a pawl matched with the ratchet, a check pawl for limiting the reverse movement of the ratchet and a pawl spring for resetting the pawl; the ratchet wheel is connected with the clamping mechanism through the synchronous mechanism; the ratchet wheel is provided with 360 degrees/alpha ratchet teeth;
the clamping mechanism comprises a base frame fixedly connected with the rotary platform, a fixed clamping plate fixed on one side of the base frame, and a movable clamping plate capable of sliding on the base frame, wherein a compression spring is arranged between the movable clamping plate and the base frame; the part to be processed is clamped between the fixed clamping plate and the movable clamping plate; the pawl is rotationally connected with the fixed clamping plate through a connecting shaft;
the synchronous mechanism comprises a driving synchronous wheel fixedly connected with the connecting shaft, a rotary thimble arranged on the fixed clamping plate and a driven synchronous wheel fixedly connected with the rotary thimble; and the synchronous belt is connected with the driving synchronous wheel and the driven synchronous wheel.
2. The processing apparatus for high-speed multi-edge curved column parts according to claim 1, wherein: the driving device comprises a motor arranged on the supporting seat, a driving gear connected with an output shaft of the motor, and a driven gear meshed with the driving gear and fixedly arranged on the rotary platform.
3. The processing apparatus for high-speed multi-edge curved column parts according to claim 1, wherein: the cutting device comprises a fixed upright post arranged beside the supporting seat, a swinging cross beam rotationally connected with the top of the fixed upright post, a cutting motor arranged at one end of the swinging cross beam, and a cutter connected with the output end of the cutting motor; the middle part of the swing beam is provided with a follow-up rod parallel to the fixed upright post; one end of the follow-up rod is connected with the swing beam, and the other end of the follow-up rod is connected with the side wall of the supporting seat through a tension spring; the cutting edge of the cutter is far away from the part to be processed when the protrusion pushes the follower rod, and is reset under the action of the tension spring.
4. The processing apparatus for high-speed multi-edge curved column parts according to claim 1, wherein: the supporting seat top surface is equipped with the annular guide rail, the rotary platform bottom surface is equipped with a plurality of sliders, the slider be equipped with the spout of annular guide rail adaptation.
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| CN114577494B (en) * | 2022-03-28 | 2024-02-02 | 深圳市道通科技股份有限公司 | Clamping device and method for determining curve of travel curve boss in clamping device |
| CN114799979B (en) * | 2022-05-06 | 2024-06-25 | 芜湖巨轩金属科技有限公司 | Metal cutting machine tool capable of being clamped rapidly |
| CN117066555B (en) * | 2023-09-25 | 2024-02-02 | 宁波五峰机械有限公司 | Machining mechanism and machining method for electric tool accessories |
| CN117213739B (en) * | 2023-09-27 | 2024-04-16 | 山东纳赫汽车零部件有限公司 | Caliper disc brake tightness detector convenient to operate |
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