CN115229536A - Surrounding type multi-angle machining center - Google Patents

Surrounding type multi-angle machining center Download PDF

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Publication number
CN115229536A
CN115229536A CN202211163929.7A CN202211163929A CN115229536A CN 115229536 A CN115229536 A CN 115229536A CN 202211163929 A CN202211163929 A CN 202211163929A CN 115229536 A CN115229536 A CN 115229536A
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China
Prior art keywords
horizontal
vertical
arc
wall
slider
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211163929.7A
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Chinese (zh)
Inventor
张宝山
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Nantong Jiamu Molding Technology Co ltd
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Nantong Jiamu Molding Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Nantong Jiamu Molding Technology Co ltd filed Critical Nantong Jiamu Molding Technology Co ltd
Priority to CN202211163929.7A priority Critical patent/CN115229536A/en
Publication of CN115229536A publication Critical patent/CN115229536A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q7/00Arrangements 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention discloses a surrounding type multi-angle machining center which comprises a bedplate, wherein a plurality of track supports are symmetrically arranged on the bedplate, two slide rails are symmetrically arranged at the upper ends of the track supports, two slide rods are symmetrically arranged in each slide rail, air cylinder sliding tables are slidably arranged in the two slide rods at the same side, one end of each air cylinder sliding table extends to the outer sides of the slide rails and is provided with a connecting block, a ring sleeve is fixedly arranged between the two connecting blocks, a rotating pipe is rotatably inserted into the inner wall of the ring sleeve, and a machining mechanism is embedded and arranged on the inner wall of the rotating pipe. According to the invention, the cutter is controlled to surround the outer side of the workpiece for processing, so that dead-angle-free processing is realized, secondary adjustment is not needed, the processing efficiency is higher, the included angle between the surface of the workpiece and the cutter is changed by controlling and adjusting the fixed angle of the workpiece, multi-angle complex processing of the workpiece is realized, and the application range of workpiece processing is enlarged.

Description

Surrounding type multi-angle machining center
Technical Field
The invention relates to the technical field of full-automatic machining centers, in particular to a surrounding type multi-angle machining center.
Background
Present full machining center is mostly two-dimentional machining center, the horizontal migration position can freely be adjusted to the cutter promptly, the fixed centre gripping of work piece is on anchor clamps, can simply process the work piece upper surface, but this kind of processing mode, because the bottom that the work piece leads to the work piece on the anchor clamps is fixed by the work piece is blockked and can't be processed, need adjust once more and change the centre gripping direction, lead to its needs adjustment operation many times promptly, machining efficiency is low and troublesome poeration, and to unchangeable because cutter and work piece surface contained angle, lead to it to only can simply process, can't carry out complicated slot processing, lead to its processing application scope less.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, multiple times of adjustment is needed due to the fact that no dead angle machining can be achieved, complex machining cannot be conducted due to the fact that the included angle between a workpiece and a cutter is fixed, and the application range is small.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a surround type multi-angle machining center, includes the platen, a plurality of track supports are installed to the symmetry on the platen, and is a plurality of two slide rails are installed to the common symmetry in upper end of track support, every two slide bars are installed to equal symmetry in the slide rail, two of homonymy equal common slidable mounting has cylinder slip table, every in the slide bar the one end of cylinder slip table all extends to the outside of slide rail and installs the connecting block, two common fixed mounting has the ring cover between the connecting block, it is equipped with the commentaries on classics pipe to rotate to insert on the inner wall of ring cover, it installs processing mechanism to inlay on the inner wall of commentaries on classics pipe to be equipped with, two rings are installed to the outside and the symmetry of ring cover to the both ends of commentaries on classics pipe, a plurality of biax motors are installed to the symmetry on the lateral wall of ring cover, a plurality of stationary blades are installed to the symmetry on the end wall of ring cover, every the machine shaft of biax motor all rotates to pass the stationary blade and installs drive gear, every drive gear all mutually supports with the ring that corresponds the side.
Further, the processing mechanism includes that the fixed piston cylinder of establishing on the change tube inner wall of inlaying, every all sealed slip inserts in the piston cylinder and is equipped with the piston post, every the piston post is kept away from the one end of piston cylinder and is inlayed and be equipped with the processing motor, fixed mounting has the tool bit assembler on the bent axle of processing motor.
Further, two fixed supports are symmetrically installed on the bedplate, the two fixed supports are respectively located on two sides of the rotating pipe, each fixed support is fixedly provided with a vertical arc-shaped plate, each vertical sliding groove is formed in the inner side wall of the vertical arc-shaped plate, each vertical sliding groove is internally provided with a vertical sliding device in a sliding mode, the outer side wall of each vertical sliding device extends to the outer side of the vertical arc-shaped plate and is provided with a horizontal arc-shaped plate, each horizontal sliding groove is formed in the inner side wall of the horizontal arc-shaped plate, each horizontal sliding device is internally provided with a horizontal sliding device in a sliding mode, the outer side wall of each horizontal sliding device extends to the outer side of the horizontal arc-shaped plate and is provided with a clamp holder, the arc centers of the two vertical arc-shaped plates are the same, and the arc centers of the two horizontal arc-shaped plates are the same.
Furthermore, a vertical tooth groove is formed in the bottom wall of each vertical sliding groove, a vertical adjusting gear is embedded in one side, close to the vertical tooth groove, of each vertical sliding device in a rotating mode, and each vertical adjusting gear is matched with the corresponding vertical tooth groove.
Furthermore, horizontal tooth grooves are formed in the bottom wall of each horizontal sliding groove, horizontal adjusting gears are embedded into one side, close to the horizontal tooth grooves, of each horizontal sliding device in a rotating mode, and each horizontal adjusting gear is matched with the corresponding horizontal tooth groove.
Furthermore, each gripper comprises a plurality of adjusting piston rods which are inserted on the corresponding horizontal sliders in a sliding manner, and claw discs are installed at one ends, far away from the horizontal sliders, of the adjusting piston rods on the same side.
Has the advantages that: the workpiece machining device has the advantages that the cutter is controlled to surround the outer side of the workpiece for machining, no dead angle machining is realized, secondary adjustment is not needed, machining efficiency is higher, the workpiece fixing angle is controlled to be adjusted, the included angle between the surface of the workpiece and the cutter is changed, multi-angle complex machining of the workpiece is realized, and the application range of workpiece machining is enlarged.
Drawings
FIG. 1 is a schematic structural diagram of a circular multi-angle machining center according to the present invention;
FIG. 2 is a schematic view of a horizontal arc plate and a vertical arc plate of a surrounding multi-angle machining center according to the present invention;
FIG. 3 is a schematic view of a rotating pipe of a circular multi-angle machining center according to the present invention;
FIG. 4 is an enlarged view of a portion of a horizontal slider of a wrap-around multi-angle machining center according to the present invention;
FIG. 5 is an enlarged view of a dual-axis motor of a wrap-around multi-angle machining center according to the present invention.
In the figure: 1 platen, 11 track support, 12 fixed support, 2 slide rail, 21 slide bar, 22 cylinder sliding table, 23 connecting block, 3 loop, 31 fixed sheet, 4 rotating pipe, 41 toothed ring, 5 processing mechanism, 51 piston cylinder, 52 piston column, 53 processing motor, 54 tool bit assembler, 6 double-shaft motor, 61 driving gear, 7 vertical arc plate, 71 vertical sliding groove, 72 vertical tooth groove, 73 vertical slider, 74 vertical adjusting gear, 8 horizontal arc plate, 81 horizontal sliding groove, 82 horizontal tooth groove, 83 horizontal slider, 84 horizontal adjusting gear, 9 clamp, 91 adjusting piston rod, 92 claw disk.
Detailed Description
Referring to fig. 1-5, a surrounding type multi-angle machining center comprises a platen 1, a plurality of rail supports 11 are symmetrically installed on the platen 1, two slide rails 2 are symmetrically installed at the upper ends of the rail supports 11, two slide bars 21 are symmetrically installed in each slide rail 2, air cylinder sliding tables 22 are slidably installed in the two slide bars 21 on the same side, one end of each air cylinder sliding table 22 extends to the outer side of each slide rail 2 and is provided with a connecting block 23, a ring sleeve 3 is fixedly installed between the two connecting blocks 23, a rotating pipe 4 is inserted into the inner wall of the ring sleeve 3 in a rotating mode, a machining mechanism 5 is installed on the inner wall of the rotating pipe 4 in an embedded mode, two ends of the rotating pipe 4 extend to the outer side of the ring sleeve 3 and are symmetrically provided with two toothed rings 41, a plurality of double-shaft motors 6 are symmetrically installed on the outer side wall of the ring sleeve 3, a plurality of double-shaft motors 31 are symmetrically installed on the end wall of the ring 3, a machine shaft of each double-shaft motor 6 rotatably penetrates through the corresponding fixing plate 31 and is provided with a driving gear 61, and each driving gear 61 is matched with the toothed ring 41 on the corresponding side.
Under the control of external control equipment, the cylinder sliding table 22 can freely slide along the sliding rod 21 in the sliding rail 2, the ring sleeve 3 can freely move through the connecting block 23, namely, the rotating pipe 4 can freely move, the double-shaft motor 6 works under the control of the external control equipment, the gear ring 41 is driven by the driving gear 61 to drive the rotating pipe 4 to rotate, the rotating pipe 4 rotates to drive the processing mechanism 5 to rotate, the workpiece is processed in a surrounding mode and can be horizontally and freely moved to process the workpiece, the workpiece surface is free of dead angle processing, secondary operation is not needed, complex surface processing can be performed, and the application range is wider.
The processing mechanism 5 comprises piston cylinders 51 fixedly embedded and installed on the inner wall of the rotating pipe 4, a piston column 52 is hermetically and slidably inserted in each piston cylinder 51, a processing motor 53 is embedded at one end, far away from the piston cylinder 51, of each piston column 52, and a cutter head assembler 54 is fixedly installed on a crankshaft of the processing motor 53.
The piston cylinder 51 and the piston column 52 are electrically controlled electro-hydraulic telescopic structures, and during machining, the piston column 52 slides in the piston cylinder 51, so that the distance between the machining motor 53 and a workpiece is changed, that is, a cutter on the cutter head assembler 54 can machine the surface of the workpiece according to design.
Two fixed bolster 12 are installed to the symmetry on platen 1, two fixed bolster 12 are located the both sides of runner 4 respectively, equal fixed mounting has perpendicular arc 7 on every fixed bolster 12, perpendicular spout 71 has all been seted up on the inside wall of every perpendicular arc 7, equal slidable mounting has perpendicular slider 73 in every perpendicular spout 71, the lateral wall of every perpendicular slider 73 all extends to the outside of perpendicular arc 7 and installs horizontal arc 8, horizontal spout 81 has all been seted up on the inside wall of every horizontal arc 8, equal slidable mounting has horizontal slider 83 in every horizontal spout 81, the lateral wall of every horizontal slider 83 all extends to the outside of horizontal arc 8 and installs holder 9, the arc center of two perpendicular arcs 7 is the same, the arc center of two horizontal arc 8 is the same.
The vertical sliding device 73 can slide in an arc shape in the vertical sliding groove 71, the horizontal sliding groove 81 can move along with the arc shape of the vertical sliding device 73, the horizontal sliding device 83 can slide in an arc shape in the horizontal sliding groove 81, namely, the clamping device 9 can move along with the arc shape of the horizontal sliding device 83, the two clamping devices 9 can clamp and fix a workpiece, the two vertical sliding devices 73 slide in opposite directions and the two horizontal sliding devices 83 slide in opposite directions, and then because the arc centers of the two vertical arc-shaped plates 7 are the same and the arc centers of the two horizontal arc-shaped plates 8 are the same, the distance between the two clamping devices 9 is unchanged, namely, when the workpiece is clamped and fixed, the workpiece can be driven to move in multiple angles, so that the machining angle of the workpiece and the machining mechanism 5 is changed, namely, more complex machining can be carried out, the machining effect is increased, and the machining application range is enlarged.
Perpendicular tooth's socket 72 has all been seted up on the groove diapire of every perpendicular spout 71, one side that every perpendicular slider 73 is close to perpendicular tooth's socket 72 all rotates and has inlayed perpendicular adjusting gear 74, every perpendicular adjusting gear 74 all cooperates with the perpendicular tooth's socket 72 that corresponds, horizontal tooth's socket 82 has all been seted up on the groove diapire of every horizontal spout 81, one side that every horizontal slider 83 is close to horizontal tooth's socket 82 all rotates and has inlayed horizontal adjusting gear 84, every horizontal adjusting gear 84 all cooperates with the horizontal tooth's socket 82 that corresponds.
Motors are respectively arranged in the vertical slider 73 and the horizontal slider 83, and respectively drive the vertical adjusting gear 74 and the horizontal adjusting gear 84 to rotate, so that under the control of an external control device, the vertical adjusting gear 74 can roll in the vertical tooth groove 72 and the horizontal adjusting gear 84 rolls in the horizontal tooth groove 82, that is, the vertical slider 73 can move in an arc shape and drive the horizontal arc plate 8 to move, and the horizontal slider 83 can move in an arc shape and drive the gripper 9 to move.
Each gripper 9 includes a plurality of adjusting piston rods 91 slidably inserted on the corresponding horizontal slider 83, and the ends of the plurality of adjusting piston rods 91 on the same side away from the horizontal slider 83 are commonly provided with a claw disk 92.
The adjusting piston rod 91 is hermetically inserted in the horizontal slider 83, and the adjusting piston rod 91 controls the extension and retraction of the adjusting piston rod 91 in an electric or hydraulic control mode, so that the distance between the two claw disks 92 can be changed, workpieces with different lengths can be clamped, and the application range of clamping is widened.
Specifically, a workpiece to be machined is placed between two clampers 9, then the external controller controls the adjusting piston rod 91 to move, so that the two claw discs 92 abut against the workpiece and clamp the workpiece, then machining is performed according to design requirements, the external controller controls the vertical adjusting gear 74 to roll in the vertical tooth groove 72, so that the vertical slider 73 drives the horizontal arc-shaped plate 8 to move up and down in an arc shape, the moving directions of the two horizontal arc-shaped plates 8 are opposite, then the horizontal adjusting gear 84 is controlled to be fixed in the horizontal tooth groove 82, so that the horizontal slider 83 drives the clampers 9 to move horizontally in an arc shape, and the moving directions of the two clampers 9 are opposite, so that the distance between the two clampers 9 is always kept consistent, and the included angle between the surface of the workpiece and a cutter can be changed;
external controller control cylinder slip table 22 removes in slide rail 2, then drive ring cover 3 and commentaries on classics pipe 4 and remove, then make to make machining mechanism 5 horizontal migration, control piston post 52 removes in piston cylinder 51, then make to process motor 53 drive tool bit assembler 54 and rotate and process the workpiece surface, external controller control double-shaft motor 6 drives drive gear 61 and rotates, then make commentaries on classics pipe 4 rotate through ring gear 41, then make machining mechanism 5 encircle the work piece and rotate processing, can encircle no dead angle multi-angle processing to the workpiece surface promptly.

Claims (6)

1. A surrounding type multi-angle machining center comprises a bedplate (1) and is characterized in that, a plurality of track supports (11) are symmetrically installed on the bedplate (1), two slide rails (2) are symmetrically installed at the upper ends of the track supports (11) together, two slide bars (21) are symmetrically installed in each slide rail (2), an air cylinder sliding table (22) is installed in each slide bar (21) at the same side in a sliding manner, one end of each air cylinder sliding table (22) extends to the outer side of each slide rail (2) and is provided with a connecting block (23), a ring sleeve (3) is fixedly installed between the two connecting blocks (23) together, a rotating pipe (4) is rotatably inserted on the inner wall of the ring sleeve (3), a processing mechanism (5) is embedded on the inner wall of the rotating pipe (4), two ends of the rotating pipe (4) extend to the outer side of the ring sleeve (3) and are symmetrically provided with two toothed rings (41), a plurality of double-shaft motors (6) are symmetrically arranged on the outer side wall of the ring sleeve (3), a plurality of fixing pieces (31) are symmetrically installed on the end wall of the ring sleeve (3), the crankshaft of each double-shaft motor (6) rotates to penetrate through the fixing pieces (31) and is provided with a driving gear (61), and each driving gear (61) is matched with the gear ring (41) on the corresponding side.
2. The encircling type multi-angle machining center according to claim 1, wherein the machining mechanism (5) comprises piston cylinders (51) fixedly embedded and installed on the inner wall of the rotating pipe (4), each piston cylinder (51) is internally provided with a piston column (52) in a sealing and sliding manner, one end of each piston column (52) far away from the piston cylinder (51) is embedded with a machining motor (53), and a cutter head assembler (54) is fixedly installed on a machine shaft of the machining motor (53).
3. The encircling multi-angle machining center according to claim 1, wherein two fixing supports (12) are symmetrically installed on the platen (1), the two fixing supports (12) are respectively located at two sides of the rotating pipe (4), each fixing support (12) is fixedly provided with a vertical arc-shaped plate (7), a vertical sliding groove (71) is formed in the inner side wall of each vertical arc-shaped plate (7), a vertical slider (73) is slidably installed in each vertical sliding groove (71), the outer side wall of each vertical slider (73) extends to the outer side of the vertical arc-shaped plate (7) and is provided with a horizontal arc-shaped plate (8), a horizontal sliding groove (81) is formed in the inner side wall of each horizontal arc-shaped plate (8), a horizontal slider (83) is slidably installed in each horizontal sliding groove (81), the outer side wall of each horizontal slider (83) extends to the outer side of the horizontal arc-shaped plate (8) and is provided with a holder (9), the arc centers of the two vertical arc-shaped plates (7) are the same, and the arc centers of the two horizontal arc-shaped plates (8) are the same.
4. The encircling multi-angle machining center according to claim 3, wherein a vertical tooth groove (72) is formed in the bottom wall of each vertical sliding groove (71), a vertical adjusting gear (74) is rotatably embedded in one side of each vertical slider (73) close to the vertical tooth groove (72), and each vertical adjusting gear (74) is matched with the corresponding vertical tooth groove (72).
5. The encircling multi-angle machining center according to claim 3, wherein a horizontal tooth groove (82) is formed in the bottom wall of each horizontal sliding groove (81), a horizontal adjusting gear (84) is rotatably embedded in one side of each horizontal slider (83) close to the horizontal tooth groove (82), and each horizontal adjusting gear (84) is matched with the corresponding horizontal tooth groove (82).
6. A surrounding type multi-angle machining center according to claim 3, characterized in that each of the grippers (9) comprises a plurality of adjusting piston rods (91) slidably inserted on the corresponding horizontal slider (83), and the ends of the adjusting piston rods (91) on the same side far away from the horizontal slider (83) are commonly provided with claw discs (92).
CN202211163929.7A 2022-09-23 2022-09-23 Surrounding type multi-angle machining center Pending CN115229536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211163929.7A CN115229536A (en) 2022-09-23 2022-09-23 Surrounding type multi-angle machining center

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Application Number Priority Date Filing Date Title
CN202211163929.7A CN115229536A (en) 2022-09-23 2022-09-23 Surrounding type multi-angle machining center

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CN115229536A true CN115229536A (en) 2022-10-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116787193A (en) * 2023-08-17 2023-09-22 常州钜苓铸造有限公司 Automatic change processing combination lathe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050117986A1 (en) * 2003-12-01 2005-06-02 Martin Joseph H. Vise-mounted milling machine collet indexer
CN108544280A (en) * 2018-06-29 2018-09-18 邹治双 The stationary fixture of milling is cut for ship pipe
CN209953838U (en) * 2019-04-23 2020-01-17 李家富 Drilling machining device for mechanical parts
CN111250754A (en) * 2020-02-12 2020-06-09 闻应乾 Novel multi-station drilling machine
CN211136300U (en) * 2019-11-27 2020-07-31 南通长青沙船舶工程有限公司 Shipbuilding factory production is with boats and ships bore hole device axis body positioner
CN211192024U (en) * 2019-11-14 2020-08-07 无锡威马机械有限公司 Special positioning tool for turning pump shaft main shaft
CN217413181U (en) * 2022-06-21 2022-09-13 哈尔滨实力航空工业有限公司 Clamping device is used in processing of aircraft spare part inclined hole

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050117986A1 (en) * 2003-12-01 2005-06-02 Martin Joseph H. Vise-mounted milling machine collet indexer
CN108544280A (en) * 2018-06-29 2018-09-18 邹治双 The stationary fixture of milling is cut for ship pipe
CN209953838U (en) * 2019-04-23 2020-01-17 李家富 Drilling machining device for mechanical parts
CN211192024U (en) * 2019-11-14 2020-08-07 无锡威马机械有限公司 Special positioning tool for turning pump shaft main shaft
CN211136300U (en) * 2019-11-27 2020-07-31 南通长青沙船舶工程有限公司 Shipbuilding factory production is with boats and ships bore hole device axis body positioner
CN111250754A (en) * 2020-02-12 2020-06-09 闻应乾 Novel multi-station drilling machine
CN217413181U (en) * 2022-06-21 2022-09-13 哈尔滨实力航空工业有限公司 Clamping device is used in processing of aircraft spare part inclined hole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116787193A (en) * 2023-08-17 2023-09-22 常州钜苓铸造有限公司 Automatic change processing combination lathe
CN116787193B (en) * 2023-08-17 2023-11-24 常州钜苓铸造有限公司 Automatic change processing combination lathe

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Application publication date: 20221025