CN109500638B - Thin-wall pipe fitting clamping device - Google Patents

Thin-wall pipe fitting clamping device Download PDF

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Publication number
CN109500638B
CN109500638B CN201811546687.3A CN201811546687A CN109500638B CN 109500638 B CN109500638 B CN 109500638B CN 201811546687 A CN201811546687 A CN 201811546687A CN 109500638 B CN109500638 B CN 109500638B
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CN
China
Prior art keywords
driving disc
driving
clamping
disc
thin
Prior art date
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Active
Application number
CN201811546687.3A
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Chinese (zh)
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CN109500638A (en
Inventor
张帆
张伟
曾佑红
肖勇平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fg Trasmission Technology Co ltd
Original Assignee
Fg Trasmission Technology Co ltd
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Filing date
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Priority to CN201811546687.3A priority Critical patent/CN109500638B/en
Publication of CN109500638A publication Critical patent/CN109500638A/en
Application granted granted Critical
Publication of CN109500638B publication Critical patent/CN109500638B/en
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Classifications

    • 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
    • B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
    • 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
    • B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic 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
    • 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
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • 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
    • B23Q2703/04—Work clamping means using fluid means or a vacuum

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

Abstract

The invention relates to the field of tool clamps and discloses a thin-wall pipe fitting clamping device which comprises a plurality of clamping heads, a central support, a first driving disk and a second driving disk, wherein the central support is annular, a plurality of equidistant limiting holes are formed in the circumferential direction, and the clamping heads are arranged in the limiting holes; the first driving disc and the second driving disc are rotatably arranged on the center bracket, and the clamping head is positioned between the first driving disc and the second driving disc; the first driving disc and the second driving disc are provided with a plurality of spiral sliding grooves, and the sliding grooves on the first driving disc and the sliding grooves on the second driving disc are opposite in rotation direction; and sliding blocks are arranged on the clamping head and close to the two sides of the first driving disk and the second driving disk, and can slide along the sliding grooves. The clamping device for the thin-wall pipe fitting has the advantages of high clamping speed, compact structure and uniform stress of the pipe fitting.

Description

Thin-wall pipe fitting clamping device
Technical Field
The invention relates to a fixture, in particular to a thin-wall pipe fitting clamping device.
Background
The existing clamping fixture for pipe fittings is the same as the clamping cylinder, a three-jaw chuck is used, the clamping fixture comprises a support and an annular chuck, the chuck is fixed on the support, at least three clamping jaws are uniformly arranged on the chuck, the clamping jaws are uniformly distributed along the circumferential direction and are positioned on the same circumference concentric with the annular chuck, each clamping jaw is connected with the chuck, two strip-shaped through holes are symmetrically arranged on the connecting table in parallel and are respectively positioned on two sides of the clamping jaw, a screw penetrates through the strip-shaped through holes to fixedly connect the clamping jaw with the chuck, a connecting line of the center of the end face of the chuck and the center of the clamping jaw is positioned on the radial position of the end face of the chuck, and the two strip-shaped through holes on each connecting table are parallel to the connecting line of the center of the end face of the chuck and the corresponding center of the clamping jaw.
However, the clamping of the thin-wall pipe fitting only has three stress points, and the pipe fitting is easy to deform under the effects of clamping fixed pressure and cutting stress of cutting machining.
Disclosure of Invention
The invention aims to solve the problems of clamping a thin-wall pipe fitting and easily deforming the pipe fitting due to stress in the prior art, and provides a thin-wall pipe fitting clamping device which has the advantages of high clamping speed, compact structure and uniform pipe fitting stress.
In order to achieve the above object, according to one aspect of the present invention, there is provided a thin-walled pipe fitting clamping device, including a plurality of clamping heads, a central support, a first driving disk and a second driving disk, wherein the central support is annular, a plurality of equally spaced limiting holes are circumferentially provided, the clamping heads are mounted in the limiting holes, and the clamping heads can slide in a radial direction of the central support along the limiting holes;
the first driving disc and the second driving disc are rotatably arranged on the central bracket, the central axes of the first driving disc and the second driving disc are coincident with the central axis of the central bracket, and the clamping head is positioned between the first driving disc and the second driving disc; the first driving disc and the second driving disc are provided with a plurality of spiral sliding grooves, and the sliding grooves on the first driving disc and the sliding grooves on the second driving disc are opposite in rotation direction.
And sliding blocks are arranged on the clamping head and close to the two sides of the first driving disk and the second driving disk, and can slide along the sliding grooves.
Preferably, the thin-wall pipe fitting clamping device further comprises a supporting seat, the center support is fixedly arranged on the supporting seat, a round hole is formed in the supporting seat, and the axis of the round hole coincides with the axis of the center support.
Preferably, the first driving cylinder and the second driving cylinder 8 are rotatably installed on the supporting seat, the first driving plate and the second driving plate are provided with mounting holes, and the first driving cylinder and the second driving cylinder are respectively connected to the first driving plate and the second driving plate to drive the first driving plate and the second driving plate to rotate.
Preferably, the number of the clamping heads is the same as the number of the limiting holes on the central support, and a plurality of the clamping heads are respectively arranged in each limiting hole of the central support.
Preferably, a plurality of the clamping heads are rotationally symmetrically distributed.
Preferably, the number of the sliding grooves on the first driving disk and the second driving disk is half that of the clamping heads, and the adjacent two clamping heads are distributed in the same sliding groove as the sliding blocks on one group.
Preferably, the thin-wall pipe fitting clamping device is further provided with an end cover, and the end cover is arranged on one surface of the first driving disc, which is far away from the clamping head.
Through the technical scheme, two driving disks which are oppositely arranged are utilized, spiral sliding grooves with opposite directions are formed in the first driving disk and the second driving disk, a sliding block on the clamping head can slide in the sliding grooves, the driving cylinder is utilized to drive the two driving disks to rotate at equal speed and in opposite directions, the clamping head can move along the radial direction, a plurality of clamping heads are circumferentially arranged to clamp a middle pipe fitting, the clamping heads are limited by the central support, and circumferential rotation of the clamping heads is avoided. Because the number of the clamping heads is large, the whole pipe fitting is uniformly stressed and is convenient to clamp.
Drawings
FIG. 1 is an exploded view of a thin walled tube gripping device according to one embodiment of the present invention;
fig. 2 is a perspective view of the center support of the present invention.
Description of the reference numerals
1-end cap 2-first drive disk
3-center support 4-clamping head
5-second drive disk 6-supporting seat
7-first driving cylinder 8-second driving cylinder
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise specified, terms such as "upper and lower" are used to generally refer to the relationship of upper and lower as shown in fig. 1. "inner and outer" refer to the inner and outer relationship of the profile itself.
As shown in fig. 1, the invention provides a thin-wall pipe clamping device, which comprises a plurality of clamping heads 4, a central bracket 3, a first driving disk 2 and a second driving disk 5, wherein the central bracket 3 is annular, a plurality of equidistant limiting holes are formed in the circumferential direction, the clamping heads 4 are installed in the limiting holes, and the clamping heads 4 can slide along the limiting holes in the radial direction of the central bracket 3; the first driving disc 2 and the second driving disc 5 are rotatably arranged on the central bracket 3, the central axes of the first driving disc 2 and the second driving disc 5 are coincident with the central axis of the central bracket 3, and the clamping head 4 is positioned between the first driving disc 2 and the second driving disc 5; a plurality of spiral sliding grooves are formed in the first driving disc 2 and the second driving disc 5, and the rotation directions of the sliding grooves in the first driving disc 2 and the sliding grooves in the second driving disc 5 are opposite; and sliding blocks are arranged on two sides, close to the first driving disk 2 and the second driving disk 5, of the clamping head 4 and can slide along the sliding grooves.
The thin-wall pipe fitting clamping device further comprises a supporting seat 6, the center support 3 is fixedly arranged on the supporting seat 6, a round hole is formed in the supporting seat 6, and the axis of the round hole coincides with the axis of the center support 3.
The first driving cylinder 7 and the second driving cylinder 8 are rotatably arranged on the supporting seat 6, the first driving disc 2 and the second driving disc 5 are provided with mounting holes, and the first driving cylinder 7 and the second driving cylinder 8 are respectively connected to the first driving disc 2 and the second driving disc 5 to drive the first driving disc 2 and the second driving disc 5 to rotate.
The number of the clamping heads 4 is the same as that of the limiting holes on the center support 3, and a plurality of the clamping heads 4 are respectively arranged in each limiting hole of the center support 3.
A plurality of the clamping heads 4 are distributed in a rotationally symmetrical manner. The number of the sliding grooves on the first driving disc 2 and the second driving disc 5 is half that of the clamping heads 4, and two adjacent clamping heads 4 are distributed in the same sliding groove as a group of sliding blocks.
The thin-wall pipe fitting clamping device is further provided with an end cover 1, and the end cover 1 is arranged on one surface of the first driving disc 2, which is far away from the clamping head 4.
As shown in fig. 1 and 2, the first driving disc 2 and the second driving disc 5 are in a circular ring shape, the first driving disc 2 and the second driving disc 5 are coaxially arranged on the central support 3, the clamping heads 4 are positioned between the first driving disc 2 and the second driving disc 5 and inserted into the limiting holes of the central support 3, and a plurality of the clamping heads 4 are arranged at equal intervals around the axes of the first driving disc 2 and the second driving disc 5. Two driving cylinders are arranged on the support frame and are respectively connected with the first driving disc 2 and the second driving disc 5, and the hydraulic cylinders can drive the first driving disc 2 and the second driving disc 5 to rotate at constant speed and in opposite directions; because the first driving disk 2 and the second driving disk 5 are provided with vortex-shaped sliding grooves with opposite directions, the sliding blocks of the clamping head 4 are embedded in the sliding grooves, when the first driving disk 2 and the second driving disk 5 rotate reversely, the overlapping positions of the sliding grooves of the first driving disk 2 and the second driving disk 5 in the plan view in the figure can move along the radial direction, the sliding blocks on the clamping head 4 are arranged up and down oppositely, and the positions of the sliding blocks in the sliding grooves are fixed at the overlapping positions of the two sliding grooves; so the first driving disk 2 and the second driving disk 5 can drive the clamping head 4 to move along the radial direction when rotating reversely, and meanwhile, when the first driving disk 2 and the second driving disk 5 rotate, the central bracket 3 is fixed, and the limiting hole of the central bracket 3 plays a limiting role on the clamping head 4 to prevent the clamping head 4 from rotating; thereby realizing the functions of clamping and releasing the clamped pipe fitting. The pipe fitting can be clamped only by driving the first driving disc 2 and the second driving disc 5 to rotate, and the pipe fitting clamping device is simple to operate and compact in structure.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a plurality of simple variants of the technical proposal of the invention can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the invention does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims (4)

1. The thin-wall pipe fitting clamping device is characterized by comprising a plurality of clamping heads (4), a central support (3), a first driving disc (2) and a second driving disc (5), wherein the central support (3) is annular, a plurality of equidistant limiting holes are formed in the circumferential direction, the clamping heads (4) are installed in the limiting holes, and the clamping heads (4) can slide along the limiting holes in the radial direction of the central support (3); the first driving disc (2) and the second driving disc (5) are rotatably arranged on the central bracket (3), the central axes of the first driving disc (2) and the second driving disc (5) are coincident with the central axis of the central bracket (3), and the clamping head (4) is positioned between the first driving disc (2) and the second driving disc (5); a plurality of spiral sliding grooves are formed in the first driving disc (2) and the second driving disc (5), and the rotating directions of the sliding grooves in the first driving disc (2) and the sliding grooves in the second driving disc (5) are opposite;
the two sides of the clamping head (4) close to the first driving disk (2) and the second driving disk (5) are respectively provided with a sliding block, and the sliding blocks can slide along the sliding grooves;
the thin-wall pipe fitting clamping device further comprises a supporting seat (6), the center support (3) is fixedly arranged on the supporting seat (6), a round hole is formed in the supporting seat (6), and the axis of the round hole is coincident with the axis of the center support (3);
a first driving air cylinder (7) and a second driving air cylinder (8) are rotatably arranged on the supporting seat (6), mounting holes are formed in the first driving disc (2) and the second driving disc (5), and the first driving air cylinder (7) and the second driving air cylinder (8) are respectively connected to the first driving disc (2) and the second driving disc (5) to drive the first driving disc (2) and the second driving disc (5) to rotate;
the number of sliding grooves on the first driving disc (2) and the second driving disc (5) is half of the number of the clamping heads (4), and two adjacent clamping heads (4) are distributed in the same sliding groove in a group of sliding blocks.
2. A thin-walled pipe gripping apparatus according to claim 1, characterized in that the number of gripping heads (4) is the same as the number of limiting holes in the central support (3), a plurality of gripping heads (4) being arranged in each limiting hole of the central support (3), respectively.
3. A thin-walled pipe gripping apparatus according to claim 1, characterized in that a plurality of the gripping heads (4) are rotationally symmetrically distributed.
4. A thin-walled pipe gripping apparatus according to claim 1, characterized in that the apparatus is further provided with an end cap (1), the end cap (1) being arranged on the side of the first drive disc (2) remote from the gripping head (4).
CN201811546687.3A 2018-12-18 2018-12-18 Thin-wall pipe fitting clamping device Active CN109500638B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811546687.3A CN109500638B (en) 2018-12-18 2018-12-18 Thin-wall pipe fitting clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811546687.3A CN109500638B (en) 2018-12-18 2018-12-18 Thin-wall pipe fitting clamping device

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CN109500638A CN109500638A (en) 2019-03-22
CN109500638B true CN109500638B (en) 2024-01-26

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CN110394741B (en) * 2019-07-25 2024-04-09 南京信息职业技术学院 Multidirectional linkage pipe wrench capable of adaptively clamping thin-wall pipe fitting
CN112677038B (en) * 2019-10-17 2022-02-18 亚杰科技（江苏）有限公司 Barrel type clamp
CN110919693A (en) * 2019-11-07 2020-03-27 山东华宇工学院 Mechanical arm zero point correction combination set and using method thereof
CN111001664A (en) * 2019-11-13 2020-04-14 太原科技大学 Hydraulic fixing device for processing metal pipe
CN111633242B (en) * 2020-06-05 2021-03-30 玉环市天利铜业有限公司 Machining fixture positioning mechanism capable of quickly positioning and punching thin-wall pipeline
CN111774895A (en) * 2020-07-13 2020-10-16 宜昌长机科技有限责任公司 Radial elastic clamping mechanism and method for shaft parts
CN112820474A (en) * 2020-12-29 2021-05-18 江苏芸裕金属制品有限公司 Middle and new strand threading nozzle capable of being adapted to various models and using method

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CN1275465A (en) * 1999-05-14 2000-12-06 动力工具霍德尔斯公司 Chuck
CN101653836A (en) * 2009-07-17 2010-02-24 中国航天科技集团公司长征机械厂 Cam type centering clamping chuck
CN203831102U (en) * 2014-04-22 2014-09-17 贵州振华天通设备有限公司 Clamp of thin-wall pipe
CN104289733A (en) * 2013-07-17 2015-01-21 通快机床两合公司 Clamping device for positioning workpieces, machine tool with such a device, method for positioning workpieces by means of such a clamping device
CN105728766A (en) * 2016-05-09 2016-07-06 优德精密工业（昆山）股份有限公司 Pneumatic cam chuck clamping mechanism
CN108544280A (en) * 2018-06-29 2018-09-18 邹治双 The stationary fixture of milling is cut for ship pipe
CN108655792A (en) * 2018-06-29 2018-10-16 邹治双 A kind of fixing device for cutting milling for ship pipe
CN108723411A (en) * 2018-08-15 2018-11-02 浙江科恩特电机科技有限公司 Thin-wall tube Vehicle Processing tooling
CN208163130U (en) * 2018-04-04 2018-11-30 周雅莉 A kind of spherical work-piece clamping device
CN209503590U (en) * 2018-12-18 2019-10-18 江西福格新能源传动技术有限公司 Thin-wall pipe clamping device

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JP5431126B2 (en) * 2009-11-19 2014-03-05 富士機械製造株式会社 High-precision chuck with alignment function that can be hybridized

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1275465A (en) * 1999-05-14 2000-12-06 动力工具霍德尔斯公司 Chuck
CN101653836A (en) * 2009-07-17 2010-02-24 中国航天科技集团公司长征机械厂 Cam type centering clamping chuck
CN104289733A (en) * 2013-07-17 2015-01-21 通快机床两合公司 Clamping device for positioning workpieces, machine tool with such a device, method for positioning workpieces by means of such a clamping device
CN203831102U (en) * 2014-04-22 2014-09-17 贵州振华天通设备有限公司 Clamp of thin-wall pipe
CN105728766A (en) * 2016-05-09 2016-07-06 优德精密工业（昆山）股份有限公司 Pneumatic cam chuck clamping mechanism
CN208163130U (en) * 2018-04-04 2018-11-30 周雅莉 A kind of spherical work-piece clamping device
CN108544280A (en) * 2018-06-29 2018-09-18 邹治双 The stationary fixture of milling is cut for ship pipe
CN108655792A (en) * 2018-06-29 2018-10-16 邹治双 A kind of fixing device for cutting milling for ship pipe
CN108723411A (en) * 2018-08-15 2018-11-02 浙江科恩特电机科技有限公司 Thin-wall tube Vehicle Processing tooling
CN209503590U (en) * 2018-12-18 2019-10-18 江西福格新能源传动技术有限公司 Thin-wall pipe clamping device

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