CN101386137A - Self-centering clamping mechanism - Google Patents

Self-centering clamping mechanism Download PDF

Info

Publication number
CN101386137A
CN101386137A CNA2008102121378A CN200810212137A CN101386137A CN 101386137 A CN101386137 A CN 101386137A CN A2008102121378 A CNA2008102121378 A CN A2008102121378A CN 200810212137 A CN200810212137 A CN 200810212137A CN 101386137 A CN101386137 A CN 101386137A
Authority
CN
China
Prior art keywords
sides
tooth bar
anchor clamps
gear
self
Prior art date
Application number
CNA2008102121378A
Other languages
Chinese (zh)
Other versions
CN101386137B (en
Inventor
郁霞秋
邱其琴
卢斌
邱江伟
Original Assignee
长江润发机械股份有限公司
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.)
Filing date
Publication date
Application filed by 长江润发机械股份有限公司 filed Critical 长江润发机械股份有限公司
Priority to CN2008102121378A priority Critical patent/CN101386137B/en
Publication of CN101386137A publication Critical patent/CN101386137A/en
Application granted granted Critical
Publication of CN101386137B publication Critical patent/CN101386137B/en

Links

Abstract

The invention relates to a self-centering clamping mechanism which is provided with a chassis on which a driving device is fixedly arranged; a driving shaft of the driving device is horizontally connected with gear racks arranged on the chassis; corresponding transmission gears are arranged above the gear racks and are meshed with the gear racks; clamps are arranged above the transmission gears which are meshed with the corresponding clamps by the gear racks arranged on the clamps; the self-centering clamping mechanism is characterized in that: the chassis is provided with a left clamp and a right clamp that are respectively arranged at the left side and the right side of the driving device; a left transmission gear and a right transmission gear are arranged and are respectively meshed with the gear racks arranged on the clamps; correspondingly, a left gear rack and a right gear rack are arranged and meshed with the transmission gears; the left transmission gear and the right transmission gear as well as the left gear rack and the right gear rack are respectively arranged at the left side and the right side of the driving device; the center between the left clamp and the right clamp is the same with the center of a processing cutter. When work pieces are processed, the center of the work pieces are taken as standard, thus causing the tolerance of the working pieces to be shared by the left side and the right side and having small left and right tolerance and high processing precision.

Description

Self-centering clamping mechanism
Technical field
The present invention relates to a kind of clamp mechanism that is used for processing work, particularly a kind of self-centering clamping mechanism.
Background technology
In the industrial production workpiece is added man-hour,, need workpiece be fixed, again it is processed with clamp mechanism for guaranteeing the precision of workpiece.Existing clamp mechanism comprises left anchor clamps 1 and right anchor clamps 2 as shown in Figure 1, and one of them left anchor clamps 1 maintains static, but right anchor clamps 2 move left and right under the drive of drive unit 5.After being placed on workpiece 6 on the workbench, move to direction, together workpiece 6 is fixedly clamped, with cutter it is processed then with left anchor clamps 1 near workpiece 6 at the drive bottom right anchor clamps 2 of drive unit.Because there is certain difference in the size of workpiece, and cutter machining center (as shown by arrow B) is fixed with the distance of left anchor clamps 1, so has certain error between the processed workpiece, causes workpiece accuracy not high.
Summary of the invention
The invention provides a kind ofly, purpose is to solve the prior art problem, provides a kind of workpiece is clamped, and making workpiece is the clamp mechanism of benchmark with the workpiece centre adding man-hour all the time, the tolerance of workpiece itself is shared by the left and right sides, and its left and right sides tolerance is little, the machining accuracy height.
The present invention's technical scheme that adopts of dealing with problems is:
Self-centering clamping mechanism has frame, is fixed with drive unit on the frame, and the driving shaft of drive unit laterally links together with the tooth bar of being located at frame; The top of tooth bar is provided with corresponding travelling gear, and is connected with a joggle with it; The top of travelling gear is provided with left and right sides anchor clamps, and meshes together by the tooth bar of being located on the anchor clamps with anchor clamps corresponding with it, two anchor clamps about having on the frame, and described left and right sides anchor clamps lay respectively at the left and right sides of drive unit; About travelling gear has two, and mesh together by the tooth bar of being located on the anchor clamps with corresponding left and right sides anchor clamps respectively; Accordingly, about the tooth bar that is meshed with travelling gear also has two; Left and right sides travelling gear, left and right sides tooth bar are located at the left and right sides of drive unit respectively, and the center between the anchor clamps of the described left and right sides is identical with the center of process tool.
Described drive unit adopts hydraulic jack.
Described hydraulic jack is the double end hydraulic jack, and left and right sides driving shaft is connected with left and right sides tooth bar respectively.
Described hydraulic jack is the single head hydraulic jack, and driving shaft is connected with corresponding tooth bar, has synchronous interaction mechanism between the tooth bar of the described left and right sides.
Described synchronous interaction mechanism is for connecting the pitch wheel group of left and right sides tooth bar.
Beneficial effect of the present invention: because the left anchor clamps in the self-centering clamping mechanism and the distance at right anchor clamps center apart between the two and the movement velocity when moving are all identical, and the center between the anchor clamps of the left and right sides is identical with the center of process tool, after causing workpiece to be clamped by mechanism, workpiece is benchmark with the workpiece centre adding man-hour all the time, therefore the tolerance of workpiece itself is shared by the left and right sides, its left and right sides tolerance is little, the machining accuracy height.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram
Fig. 2 is the structural representation of first embodiment of the present invention
Fig. 3 is the structural representation of second embodiment of the present invention
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
First embodiment of self-centering clamping mechanism as shown in Figure 2 has frame 100, is fixed with drive unit on the frame 100, and the drive unit in the present embodiment has adopted double end hydraulic jack 51.Left and right sides anchor clamps 11,2, left and right sides travelling gear 31,32, left and right sides tooth bar 41,42 are located at the left and right sides of hydraulic jack 51 respectively, and the center (shown in arrow A among the figure) between the left and right sides anchor clamps 11,2 is identical with the center (shown in arrow A among the figure) of process tool (not shown).Anchor clamps 11,2 belows in the left and right sides are provided with left and right sides travelling gear 31,32 respectively, and mesh together with corresponding travelling gear 31,32 by the tooth bar (not shown) of being located on the anchor clamps 11,2 respectively; The below of travelling gear 31,32 is provided with left and right sides tooth bar 41,42 respectively, and meshes together with corresponding tooth bar 41,42 respectively; Two driving shafts of hydraulic jack 51 laterally link together with left and right sides tooth bar 41,42 respectively.
Workpiece 6 is placed on the workbench, and hydraulic jack 51 starts, and left and right sides driving shaft is protruding with same speed, drives left and right sides tooth bar 41,42 and outwards moves respectively.Drive the left and right sides travelling gear 31,32 that meshes together with it when left and right sides tooth bar 41,42 moves and move in opposite directions, promptly move inward, driven left and right sides anchor clamps 11,2 thus and all moved inward, workpiece 6 is fixedly clamped, cutter is processed it.After workpiece 6 processed, left and right sides driving shaft withdrawal drove left and right sides tooth bar 41,42, left and right sides travelling gear 31,32, left and right sides anchor clamps 11,2 accordingly and is moved, and left and right sides anchor clamps 11,2 unclamp, and the workpiece 6 that processes is taken out.Because the distance at left and right sides anchor clamps 11,2 center apart between the two is identical, and the center (shown in arrow A among the figure) between the left and right sides anchor clamps 11,2 is identical with the center (shown in arrow A among the figure) of process tool (not shown), and left and right sides anchor clamps 11,2, left and right sides travelling gear 31,32, left and right sides tooth bar 41,42 translational speed between separately is identical, therefore after workpiece 6 is clamped by left and right sides anchor clamps 11,2, workpiece 6 is a benchmark with workpiece 6 centers adding man-hour all the time, workpiece 6 tolerances own are shared by the left and right sides, its left and right sides tolerance is little, the machining accuracy height.
Second embodiment of self-centering clamping mechanism as shown in Figure 3, the drive unit that adopts in the present embodiment is a single head hydraulic jack 52, has increased synchronous interaction mechanism 7 for realizing the same moved further between the left and right sides tooth bar 41,42.The driving shaft of hydraulic jack 52 is connected with one of them tooth bar 41 or 42, is connected by synchronous interaction mechanism 7 between the left and right sides tooth bar 41,42.In the present embodiment, the gear train that synchronous interaction mechanism 7 adopts four pitch wheels 71,72,73,74 to constitute, gear 74,71 meshes together with left and right sides tooth bar 41,42 respectively.Gear 74,71 coincides with the central shaft of the central shaft between the left and right sides tooth bar 41,42 contacted 2: 8,9 with whole self-centering clamping mechanism respectively.Gear quantity in the gear train that adopts in the present embodiment is not limited to above-mentioned four of mentioning, can change the quantity of gear as required, the mechanism that can also adopt other of the synchronous interaction mechanism that is mentioned, the gear train that is not limited in the present embodiment to be mentioned, and in the present embodiment.
Above-mentioned two embodiment have only illustrated two kinds of structures of self-centering clamping mechanism, and its drive unit and synchronizing linkage are not limited to be mentioned among above-mentioned two embodiment, and the replacement of any other equivalent technologies includes within the scope of the invention.

Claims (5)

1. self-centering clamping mechanism has frame, is fixed with drive unit on the frame, and the driving shaft of drive unit laterally links together with the tooth bar of being located at frame; The top of tooth bar is provided with corresponding travelling gear, and is connected with a joggle with it; The top of travelling gear is provided with anchor clamps, and meshes together by the tooth bar of being located on the anchor clamps with anchor clamps corresponding with it, it is characterized in that: two anchor clamps about having on the frame, and described left and right sides anchor clamps lay respectively at the left and right sides of drive unit; About travelling gear has two, and mesh together by the tooth bar of being located on the anchor clamps with corresponding left and right sides anchor clamps respectively; Accordingly, about the tooth bar that is meshed with travelling gear also has two; Left and right sides travelling gear, left and right sides tooth bar are located at the left and right sides of drive unit respectively, and the center between the anchor clamps of the described left and right sides is identical with the center of process tool.
2. self-centering clamping mechanism as claimed in claim 1 is characterized in that: drive unit adopts hydraulic jack.
3. self-centering clamping mechanism as claimed in claim 2 is characterized in that: described hydraulic jack is the double end hydraulic jack, and left and right sides driving shaft is connected with left and right sides tooth bar respectively.
4. self-centering clamping mechanism as claimed in claim 2 is characterized in that: described hydraulic jack is the single head hydraulic jack, and driving shaft is connected with corresponding tooth bar, has synchronous interaction mechanism between the tooth bar of the described left and right sides.
5. self-centering clamping mechanism as claimed in claim 4 is characterized in that: described synchronous interaction mechanism is for connecting the pitch wheel group of left and right sides tooth bar.
CN2008102121378A 2008-09-08 2008-09-08 Self-centering clamping mechanism CN101386137B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008102121378A CN101386137B (en) 2008-09-08 2008-09-08 Self-centering clamping mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008102121378A CN101386137B (en) 2008-09-08 2008-09-08 Self-centering clamping mechanism

Publications (2)

Publication Number Publication Date
CN101386137A true CN101386137A (en) 2009-03-18
CN101386137B CN101386137B (en) 2010-12-01

Family

ID=40475913

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008102121378A CN101386137B (en) 2008-09-08 2008-09-08 Self-centering clamping mechanism

Country Status (1)

Country Link
CN (1) CN101386137B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102366897A (en) * 2011-09-14 2012-03-07 常州常瑞天力动力机械有限公司 Clamping device
CN102699713A (en) * 2012-06-14 2012-10-03 佛山市普拉迪数控科技有限公司 Wheel rim processing fixture for numerical control machine tool
CN104742184A (en) * 2015-03-27 2015-07-01 江苏坤泰机械有限公司 Automatic cutting die clamping mechanism
CN105731058A (en) * 2016-03-29 2016-07-06 陈善兰 Automatic horizontal carrying device for panels
CN105927637A (en) * 2016-06-15 2016-09-07 宁波方太厨具有限公司 Positioning assembly mechanism enabling tolerance to be uniformly divided on two sides
CN107553247A (en) * 2017-09-14 2018-01-09 中信戴卡股份有限公司 A kind of device for aluminum-alloy wheel bolt hole deburring
CN107570805A (en) * 2017-10-18 2018-01-12 铜陵市业永兴工贸有限责任公司 A kind of copper rod continuous and automatic production line
CN106475811B (en) * 2016-12-16 2018-07-17 惠州市盛合顺电子有限公司 A kind of automatic drilling tooling of irregularly-shaped castings
CN108818351A (en) * 2018-07-30 2018-11-16 吴佳锋 A kind of new automobile part fixture
CN109590787A (en) * 2018-12-29 2019-04-09 湖北工程职业学院 A kind of engineering machinery shell processing positioning clamping device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102366897A (en) * 2011-09-14 2012-03-07 常州常瑞天力动力机械有限公司 Clamping device
CN102699713A (en) * 2012-06-14 2012-10-03 佛山市普拉迪数控科技有限公司 Wheel rim processing fixture for numerical control machine tool
CN102699713B (en) * 2012-06-14 2014-02-05 佛山市普拉迪数控科技有限公司 Wheel rim processing fixture for numerical control machine tool
CN104742184A (en) * 2015-03-27 2015-07-01 江苏坤泰机械有限公司 Automatic cutting die clamping mechanism
CN105731058A (en) * 2016-03-29 2016-07-06 陈善兰 Automatic horizontal carrying device for panels
CN105927637A (en) * 2016-06-15 2016-09-07 宁波方太厨具有限公司 Positioning assembly mechanism enabling tolerance to be uniformly divided on two sides
CN105927637B (en) * 2016-06-15 2018-03-13 宁波方太厨具有限公司 The positioning assemble mechanism for dividing equally tolerance both sides
CN106475811B (en) * 2016-12-16 2018-07-17 惠州市盛合顺电子有限公司 A kind of automatic drilling tooling of irregularly-shaped castings
CN107553247A (en) * 2017-09-14 2018-01-09 中信戴卡股份有限公司 A kind of device for aluminum-alloy wheel bolt hole deburring
CN107570805A (en) * 2017-10-18 2018-01-12 铜陵市业永兴工贸有限责任公司 A kind of copper rod continuous and automatic production line
CN107570805B (en) * 2017-10-18 2019-01-22 铜陵市业永兴工贸有限责任公司 A kind of copper rod continuous and automatic production line
CN108818351A (en) * 2018-07-30 2018-11-16 吴佳锋 A kind of new automobile part fixture
CN109590787A (en) * 2018-12-29 2019-04-09 湖北工程职业学院 A kind of engineering machinery shell processing positioning clamping device

Also Published As

Publication number Publication date
CN101386137B (en) 2010-12-01

Similar Documents

Publication Publication Date Title
CN2894965Y (en) Staking-carrying servo tongs
CN101176948B (en) Worktable exchange device for laser cutting machine tool
CN201931295U (en) Automatic centering fixture
CN202804195U (en) Lathe mechanical hand
CN104384711B (en) A kind of movable gantry laser cutting welding machine tool
CN202239954U (en) Automatic hydraulic double-end chamfering machine
CN101856789B (en) Gantry numerical-control milling and grinding integrated lathe of fixed column and movable beam type
CN101628399B (en) Clamping and positing device capable of automatically aligning center
CN201951138U (en) Four-axis three-dimensional engraving machine
CN102909600A (en) Cantilever servo manipulator
CN102284795B (en) Hybrid five-axis laser cutting machine
CN202877603U (en) Portal milling machine
CN103448106A (en) Portal frame type compound wood processing center
CN102862083A (en) Centering mechanism
CN105817886B (en) A kind of pair of workpiece continuous drilling chasing bar
CN202389948U (en) Plate material conveying and loading/unloading system
CN204320983U (en) A kind of die change car
CN103552850B (en) Through type pallet splits collator
CN202934659U (en) Multifunctional wooden bead forming machine
CN104842067A (en) Three-dimensional laser cutting machine in five-axis linkage
CN101941127A (en) Corrugated web plate H-shaped steel welding and cutting equipment
CN102172759A (en) Mechanical multi-link servo press driven by six parallelly-connected motors
CN101786133A (en) Multi-connecting rod servo press for four-motor parallel drive machine
CN102896445B (en) The integrated equipment of standard knot automatic machinery people welding system
CN204976628U (en) Five degree of freedom industrial robot

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20170717

Address after: 215631, Suzhou, Jiangsu province Zhangjiagang city town of morning Feng Feng Road

Patentee after: Changjiang RT Mart (Zhangjiagang) Machinery Co., Ltd.

Address before: 215633 No. 100 West Changjiang Road, Jin Gang Town, Jiangsu, Zhangjiagang

Patentee before: Changjiang Runfa Machinery Co., Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101201

Termination date: 20180908

CF01 Termination of patent right due to non-payment of annual fee