CN103801959A - Self-centering clamping device of drill press workpiece - Google Patents

Self-centering clamping device of drill press workpiece Download PDF

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Publication number
CN103801959A
CN103801959A CN201410082655.8A CN201410082655A CN103801959A CN 103801959 A CN103801959 A CN 103801959A CN 201410082655 A CN201410082655 A CN 201410082655A CN 103801959 A CN103801959 A CN 103801959A
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CN
China
Prior art keywords
self
centering
parabola
rotating disk
hinged
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Granted
Application number
CN201410082655.8A
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Chinese (zh)
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CN103801959B (en
Inventor
陈文恭
陈润福
彭建清
魏永端
郑开省
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Huhang Technology Group Co ltd
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QUANZHOU HUHANG VALVE MANUFACTURING Co Ltd
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Priority to CN201410082655.8A priority Critical patent/CN103801959B/en
Publication of CN103801959A publication Critical patent/CN103801959A/en
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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
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/28—Means for securing sliding members in any desired position
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/30—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members controlled in conjunction with the feed mechanism
    • 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
    • B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B23Q3/183—Centering devices
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/46—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio
    • B23Q5/48—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio by use of toothed gears
    • 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
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • 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
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/10—Feeding members carrying tools or work
    • B23Q2705/14—Electric drives

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

Abstract

The invention provides a self-centering clamping device of a drill press workpiece. The device can realize the self-centering function for a workpiece. The device comprises a connecting base, a workbench rotary disc, a main shaft, a parabola self-centering flower disc, a plurality of connecting rods and a plurality of positioning pawls, wherein the workbench rotary disc can be arranged above the connecting base in a rotary way, the main shaft is fixedly arranged below the middle part of the workbench rotary disc, the parabola self-centering flower disc can be arranged below the workbench rotary disc on the main shaft by a transmission mechanism in a rotary way, arc-shaped gradually slotting grooves are uniformly formed in the parabola self-centering flower disc in the radial direction, the head of one connecting rod is hinged to the end of the other connecting rod, both ends of each of the connecting rods are respectively a first hinging end and a second hinging end, the first hinging ends are respectively hinged to the arc-shaped gradually slotting grooves on the parabola self-centering flower disc, long hinging grooves corresponding to the positions of the peripheral sides of the arc-shaped gradually slotting grooves are respectively formed in the parabola self-centering flower disc, the second hinging ends are respectively hinged to the long hinging grooves in a hinge way, and the positioning pawls are respectively arranged above the second hinging ends of the connecting rods.

Description

Drill press workpiece self-centering clamping device
Technical field
The present invention relates to machining apparatus, particularly a kind of drill press workpiece self-centering clamping device.
Background technology
While boring in flange, pipe plate parts plane, flange, pipe plate parts need to be fixed on workbench, and definite flange, tube sheet class drilling part benchmark, then hole.At present in the boring of numerical control plane drill press is produced, conventionally on lathe bed, arrange some T type grooves, compress dull and stereotyped mode fixation workpiece by frock, determine that with photoelectric edge-searching device the workpiece center of circle is boring benchmark, when processing work, due to each part workpiece to be processed clamping position difference, cause adding machining benchmark in man-hour position difference, before each processing, all need to determine with photoelectric edge-searching device the machining benchmark of this processing work, can not realize the self centering function of workpiece, workpiece centre and processing work platform center cannot be coincide automatically, troublesome poeration, leading time is longer, greatly reduce the working (machining) efficiency of drilling machine.
Summary of the invention
Therefore, for above-mentioned problem, the present invention proposes a kind of easy to operate, can realize the drill press workpiece self-centering clamping device of workpiece self-centering function, raising working (machining) efficiency.
For achieving the above object, the present invention has adopted following technical scheme: drill press workpiece self-centering clamping device, comprise connection base, workbench rotating disk, main shaft, parabola self-centering floral disc, a plurality of connecting rods and complex root locating detent, described workbench rotating disk is by the rotating top that connects base of being located at of workbench rotating mechanism, described main shaft is fixedly arranged on the below, middle part of workbench rotating disk, described parabola self-centering floral disc is by the rotating below of being located at the above workbench rotating disk of main shaft of transmission mechanism, on described parabola self-centering floral disc, being radially evenly equipped with the arc of gradually opening from inside to outside gradually slots, described each connecting rod is hinged with form from beginning to end respectively, the two ends that define each connecting rod are respectively the first hinged end and the second hinged end, described each the first hinged end is articulated with on parabola self-centering floral disc by the first jointed shaft respectively and can be along the upper walking of gradually slotting of each arc with the rotation of parabola self-centering floral disc, all sides that on described parabola self-centering floral disc, corresponding each arc is gradually slotted are respectively equipped with microscler hinged groove, the second hinged end of described each connecting rod is articulated with in each microscler hinged groove by the second jointed shaft respectively and can be along walking in each microscler hinged groove with the rotation of parabola self-centering floral disc, on described workbench rotating disk, the position of corresponding each microscler hinged groove is provided with secondary microscler hinged groove, described each the second jointed shaft stretches out respectively secondary microscler hinged groove, described each locating detent is located at respectively the second hinged end top of each connecting rod, described workbench rotating disk be connected between base respectively along being circumferentially evenly equipped with rotating disk retaining mechanism.
Further improved: described transmission mechanism comprises worm screw and floral disc drive motors, and the bottom of described parabola self-centering floral disc is installed with worm gear, and described worm gear is by worm screw and drive motors phase interlock.
Further improved: described workbench rotating mechanism comprises planet stent Connection Block, final drive worm, main transmission worm gear, a plurality of planet idle wheels, planetary ring gear, the middle part of described connection base is upwards extended with planet stent, described planet stent Connection Block is fixedly arranged on the top of planet stent, described main transmission worm gear is rotatably located at the periphery of the described main shaft in top of planet stent Connection Block, lower outside and the final drive worm of main transmission worm gear are in transmission connection, top is travelling gear, described each planet idle wheel is distributed in the periphery of travelling gear and is connected by meshing transmission with travelling gear, described planetary ring gear is located at the periphery of each planet idle wheel and is connected by meshing transmission with each planet idle wheel, described planetary ring gear is fixedly arranged on the below of workbench rotating disk.
Further improved: described each rotating disk retaining mechanism comprises respectively cylinder or oil cylinder, withstanding tight block, tight lifting pin, the cylinder body of described cylinder or oil cylinder is fixed on and connects on base, the bottom of described workbench rotating disk radially offers and holds out against groove with the inner side that is connected base connection, described tight lifting pin is located at and is connected between base and workbench rotating disk, its one end is stretched into and is held out against in groove, the below that is positioned at tight lifting pin on described connection base is provided with the backstay that length is greater than tight lifting pin, described withstanding tight block and backstay are hinged, the piston rod of described cylinder or oil cylinder and the lower inside of withstanding tight block are in transmission connection.
Further improved: described workbench rotating disk is evenly equipped with rotation steel ball with being connected between the top of base.
Further improved: between described planet stent Connection Block and main shaft, to be provided with bearing.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: while needing clamp or open workpiece, transmission mechanism drives parabola self-centering floral disc to rotate, the first hinged end that parabola self-centering floral disc can drive each connecting rod when rotation is along the arc upper walking (each connecting rod is synchronously to arc gradually slot center or peripheral motion) of gradually slotting, drive the locating detent being connected with each connecting rod the second hinged end that to be processed is clamped or opened simultaneously, thereby workpiece centre and workbench center are coincide, reach self-centering function.
In sum, the present invention adopts said structure, machining benchmark using the center unification of clamping device as all workpiece, it is simple to operate, clamping workpiece easily and efficiently, and in clamping, make workpiece centre overlap with machining benchmark, greatly shortened the leading time, improved the working (machining) efficiency of drilling machine.
Accompanying drawing explanation
Fig. 1 is portion's TV structure schematic diagram of the embodiment of the present invention.
Fig. 2 is embodiment of the present invention top view.
Structural representation when Fig. 3 is the each connecting rod clamping of the embodiment of the present invention.
The specific embodiment
Now the present invention is further described with the specific embodiment by reference to the accompanying drawings.
With reference to figure 1 and Fig. 3, the open drill press workpiece self-centering clamping device of the present embodiment, comprise and connect base 1, workbench rotating disk 2, main shaft 3, parabola self-centering floral disc 4, a plurality of connecting rods 6 and complex root locating detent 5, described workbench rotating disk 2 is by the rotating top that connects base 1 of being located at of workbench rotating mechanism, to find the position of needed processing accurately, in the time of process component, workbench rotating disk will be locked, described main shaft 3 is fixedly arranged on the below, middle part of workbench rotating disk 2, described parabola self-centering floral disc 4 is by the rotating below of being located at main shaft 3 the above workbench rotating disk 2 of transmission mechanism, described transmission mechanism comprises worm screw 61 and floral disc drive motors 63, the bottom of described parabola self-centering floral disc 4 is installed with worm gear 62, described worm gear 62 is by worm screw 61 and drive motors 63 phase interlocks, on described parabola self-centering floral disc 4, be radially evenly equipped with the arc of gradually opening from inside to outside and gradually slot 41, described each connecting rod 6 is hinged with form from beginning to end respectively, the two ends that define each connecting rod 6 are respectively the first hinged end A and the second hinged end B, described each the first hinged end A is articulated with on parabola self-centering floral disc 4 by the first jointed shaft 51 respectively and can be along the walking on 41 of gradually slotting of each arc with the rotation of parabola self-centering floral disc 4, on described parabola self-centering floral disc 4, gradually slot all sides of 41 of corresponding each arc are respectively equipped with microscler hinged groove 42, the second hinged end B of described each connecting rod 6 is articulated with in each microscler hinged groove 42 by the second jointed shaft 52 respectively and can be along walking in each microscler hinged groove 42 with the rotation of parabola self-centering floral disc 4, on described workbench rotating disk 2, the position of corresponding each microscler hinged groove 42 is provided with secondary microscler hinged groove 13, described each the second jointed shaft 52 stretches out respectively secondary microscler hinged groove 13, described each locating detent 5 is located at respectively the second jointed shaft 52 tops of workbench rotating disk 2 the above each connecting rod 6, described workbench rotating disk 2 be connected between base 1 respectively along being circumferentially evenly equipped with 4 rotating disk retaining mechanisms.
Described workbench rotating mechanism comprises planet stent Connection Block 81, final drive worm 82, main transmission worm gear 83, four planet idle wheels 84, planetary ring gear 85, the middle part of described connection base 1 is upwards extended with planet stent 11, described planet stent Connection Block 81 is fixedly arranged on the top of planet stent 11, the periphery of the described main shaft 3 in top that described main transmission worm gear 83 is rotatably located at planet stent Connection Block 81, the lower outside of main transmission worm gear 83 and final drive worm 82 are in transmission connection, top is travelling gear 831, described each planet idle wheel 84 is distributed in the periphery of travelling gear 831 and is connected by meshing transmission with travelling gear 831, described planetary ring gear 85 is located at the periphery of each planet idle wheel 84 and is connected by meshing transmission with each planet idle wheel 84, described planetary ring gear 85 is fixedly arranged on the below of workbench rotating disk 2 by bolt.
Described each rotating disk retaining mechanism comprises respectively cylinder 91, withstanding tight block 92, tight lifting pin 93, the cylinder body of described cylinder 91 is fixed on and connects on base 1, the bottom of described workbench rotating disk 2 be connected inner side that base 1 connects and radially offer and hold out against groove 12, described tight lifting pin 93 is located at and is connected between base 1 and workbench rotating disk 2, its one end is stretched into and is held out against in groove 12, the below that is positioned at tight lifting pin 93 on described connection base 1 is provided with the backstay 94 that length is greater than tight lifting pin 93, described withstanding tight block 92 is hinged by swivel pin and backstay 94, the lower inside of the piston rod of described cylinder and withstanding tight block 92 is in transmission connection, behind workpiece location, when drilling machine drill bit processing work, thereby the piston rod of cylinder stretches out and promotes connected withstanding tight block compression tight lifting pin, each tight lifting pin is held out against in holding out against on groove 12, thereby locking workbench rotating disk, while preventing processing parts, it rotates affects machining accuracy.
Between described planet stent Connection Block 81 and main shaft 3, be provided with bearing 10.
While needing clamp or open workpiece, power source drives parabola self-centering floral disc to rotate by transmission mechanism, parabola self-centering floral disc drives center or the periphery that each connecting rod is synchronously gradually slotted to arc to do walking action while rotation, drive the claw being connected with each connecting rod clamp or open simultaneously, workpiece centre and workbench center are coincide, reach the function of centering, adopt said structure, machining benchmark using the center unification of self-centering clamping device as all workpiece, it is simple to operate, can be convenient, clamping workpiece efficiently, and in clamping, make workpiece centre overlap with machining benchmark, greatly shorten the leading time, improve the working (machining) efficiency of drilling machine.
Also can directly be substituted by oil cylinder or toggle based on cylinder described in aforementioned techniques scheme, as long as described arc is gradually slotted and is two and just can realizes above object of the present invention.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.

Claims (6)

1. drill press workpiece self-centering clamping device, it is characterized in that: comprise connection base, workbench rotating disk, main shaft, parabola self-centering floral disc, a plurality of connecting rods and complex root locating detent, described workbench rotating disk is by the rotating top that connects base of being located at of workbench rotating mechanism, described main shaft is fixedly arranged on the below, middle part of workbench rotating disk, described parabola self-centering floral disc is by the rotating below of being located at the above workbench rotating disk of main shaft of transmission mechanism, on described parabola self-centering floral disc, being radially evenly equipped with the arc of gradually opening from inside to outside gradually slots, described each connecting rod is hinged with form from beginning to end respectively, the two ends that define each connecting rod are respectively the first hinged end and the second hinged end, described each the first hinged end is articulated with on parabola self-centering floral disc by the first jointed shaft respectively and can be along the upper walking of gradually slotting of each arc with the rotation of parabola self-centering floral disc, all sides that on described parabola self-centering floral disc, corresponding each arc is gradually slotted are respectively equipped with microscler hinged groove, the second hinged end of described each connecting rod is articulated with in each microscler hinged groove by the second jointed shaft respectively and can be along walking in each microscler hinged groove with the rotation of parabola self-centering floral disc, on described workbench rotating disk, the position of corresponding each microscler hinged groove is provided with secondary microscler hinged groove, described each the second jointed shaft stretches out respectively secondary microscler hinged groove, described each locating detent is located at respectively the second hinged end top of each connecting rod, described workbench rotating disk be connected between base respectively along being circumferentially evenly equipped with rotating disk retaining mechanism.
2. drill press workpiece self-centering clamping device according to claim 1, it is characterized in that: described transmission mechanism comprises worm screw and floral disc drive motors, the bottom of described parabola self-centering floral disc is installed with worm gear, and described worm gear is by worm screw and drive motors phase interlock.
3. want the drill press workpiece self-centering clamping device described in 1 according to right, it is characterized in that: described workbench rotating mechanism comprises planet stent Connection Block, final drive worm, main transmission worm gear, a plurality of planet idle wheels, planetary ring gear, the middle part of described connection base is upwards extended with planet stent, described planet stent Connection Block is fixedly arranged on the top of planet stent, described main transmission worm gear is rotatably located at the periphery of the described main shaft in top of planet stent Connection Block, lower outside and the final drive worm of main transmission worm gear are in transmission connection, top is travelling gear, described each planet idle wheel is distributed in the periphery of travelling gear and is connected by meshing transmission with travelling gear, described planetary ring gear is located at the periphery of each planet idle wheel and is connected by meshing transmission with each planet idle wheel, described planetary ring gear is fixedly arranged on the below of workbench rotating disk.
4. drill press workpiece self-centering clamping device according to claim 1, it is characterized in that: described each rotating disk retaining mechanism comprises respectively cylinder or oil cylinder, withstanding tight block, tight lifting pin, the cylinder body of described cylinder or oil cylinder is fixed on and connects on base, the bottom of described workbench rotating disk radially offers and holds out against groove with the inner side that is connected base connection, described tight lifting pin is located at and is connected between base and workbench rotating disk, its one end is stretched into and is held out against in groove, the below that is positioned at tight lifting pin on described connection base is provided with the backstay that length is greater than tight lifting pin, described withstanding tight block and backstay are hinged, the piston rod of described cylinder or oil cylinder and the lower inside of withstanding tight block are in transmission connection.
5. according to the drill press workpiece self-centering clamping device described in the arbitrary claim of claim 1 to 4, it is characterized in that: described workbench rotating disk is evenly equipped with rotation steel ball with being connected between the top of base.
6. drill press workpiece self-centering clamping device according to claim 5, is characterized in that: between described planet stent Connection Block and main shaft, be provided with bearing.
CN201410082655.8A 2014-03-07 2014-03-07 Drill press workpiece self-centering clamping device Active CN103801959B (en)

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CN103801959B CN103801959B (en) 2016-07-06

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CN109719527A (en) * 2019-03-06 2019-05-07 苏州哈工易科机器人有限公司 Pusher self-centering clamping jaw
CN109732322A (en) * 2018-12-27 2019-05-10 芜湖鑫芯微电子有限公司 A kind of chip pull-up and its application method
CN109826195A (en) * 2019-01-03 2019-05-31 中交二航局第四工程有限公司 A kind of offshore steel taper pile clip pile cuts stake integration tooling
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CN111170231A (en) * 2020-01-13 2020-05-19 潘丽萍 Device for clamping tires of different sizes based on dual centering motion
CN111390676A (en) * 2020-04-30 2020-07-10 瑞安市欣炜汽车部件有限公司 Clamping device for polishing automobile hub and using method thereof
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CN113146297A (en) * 2021-04-05 2021-07-23 厦门戴承贸易有限公司 Self-centering metal pipe stable clamping auxiliary equipment
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CN117622891A (en) * 2024-01-23 2024-03-01 天津锐创环保工程有限公司 Stacking base plate feeding device for sludge brickmaking production

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CN105459026A (en) * 2015-12-23 2016-04-06 河南广度超硬材料有限公司 Domestic nail driving device
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CN109079543A (en) * 2018-09-13 2018-12-25 昆山德胜荣智能科技有限公司 A kind of four side cylinders
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CN112264931A (en) * 2020-10-23 2021-01-26 北京理工大学 Self-adaptation type and variable test piece's of size anchor clamps of polishing
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Denomination of invention: Self-centering clamping device of drill press workpiece

Effective date of registration: 20180112

Granted publication date: 20160706

Pledgee: Nanan branch of Xingye Bank, Limited by Share Ltd.

Pledgor: QUANZHOU HUHANG VALVE MANUFACTURING Co.,Ltd.

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Address after: No.11, Meiyu Road, Meiyu valve garden, Luncang, Nan'an City, Quanzhou City, Fujian Province, 362300

Patentee after: HUHANG TECHNOLOGY GROUP Co.,Ltd.

Address before: 362300 Luncang Meiyu valve garden, Nan'an City, Quanzhou City, Fujian Province

Patentee before: QUANZHOU HUHANG VALVE MANUFACTURING Co.,Ltd.