CN104440177A - Positioning clamp - Google Patents
Positioning clamp Download PDFInfo
- Publication number
- CN104440177A CN104440177A CN201410701341.1A CN201410701341A CN104440177A CN 104440177 A CN104440177 A CN 104440177A CN 201410701341 A CN201410701341 A CN 201410701341A CN 104440177 A CN104440177 A CN 104440177A
- Authority
- CN
- China
- Prior art keywords
- shift fork
- slide block
- cavity
- shifting fork
- chuck
- Prior art date
- 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
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a positioning clamp. Rotatable shifting forks are installed at the two ends of the interior of a cavity in the surface of a clamp base, a center circular hole is formed in the middle of the bottom face of the cavity, a shifting fork guide plug is arranged in the center circular hole, the upper end of the shifting fork guide plug is located in the cavity, and an annular active shifting fork slot is formed in the shifting fork guide plug. A sliding groove is formed in the surface of the clamp base, sliding blocks are arranged in the sliding groove, passive shifting fork insertion holes are formed in the bottom faces of the sliding blocks, and two shifting heads of each shifting fork are inserted into the active shifting fork slot and the corresponding passive shifting fork insertion hole respectively. A power mechanism is arranged on the bottom face of the clamp base and connected with the shifting fork guide plug, and chucks used for clamping workpieces are detachably installed on the two sliding blocks. According to the positioning clamp, the two chucks are driven by the one power mechanism to move in a face-to-face mode, the workpieces can be simultaneously clamped with the same force, and the positioning effect is better. The chucks can be conveniently replaced to meet the requirements for clamping different workpieces, and flexibility is good.
Description
Technical field
The present invention relates to machining equipment, specifically relate to a kind of bi-directional synchronization positioning fixture, grip for the position before work pieces process, belong to clamp art.
Background technology
In machining, be usually directed to the various processing of workpiece, as boring, welding, cutting etc.All need to carry out position before work pieces process to fix, this is groundwork, favourable the carrying out of the follow-up various processing of such guarantee.Usually fixture is referred to as to the device that the location of workpiece is fixed, actual when fixing a workpiece, according to the features of shape of workpiece, often there is multiple fixing point, just can guarantee reliably to fix.Each fixing point stressed is all relative both direction.During current jig Design, often have a plane of orientation, workpiece is placed on this plane, is then firmly fixed on this plane by Workpiece clamping from another direction relative with plane.Being fixedly clamped like this, actual is unidirectional firmly clamping, although also can effectively clamp, may there is damage to workpiece.Require very high occasion at some to processing precision of products especially, such clamping mode also may cause location to occur deviation, causes following process to be lost shape.
Summary of the invention
For prior art above shortcomings, the object of the present invention is to provide a kind of positioning fixture providing bi-directional synchronization to clamp with dynamics, grip for the position before work pieces process.
To achieve these goals, the technical solution used in the present invention is such:
A kind of positioning fixture, it is characterized in that: comprise clamping fixture seat, rectangular enclosure is provided with on clamping fixture seat surface, in cavity, two ends are provided with rotating shift fork respectively by declutch shift shaft, center hole is provided with in the middle part of cavity floor, be provided with shift fork guiding plug in center hole, shift fork guiding beyond the Great Wall end is arranged in cavity, and shift fork guiding plug is in the active shift fork slot being circumferentially provided with ring-type of cavity segment; Chute is provided with on the surface at clamping fixture seat, trough width is greater than cavity width, be provided with relative two slide blocks that can horizontally slip along chute in chute, slide block bottom surface is respectively equipped with passive shift fork jack, and two shifting blocks of shift fork insert in active shift fork slot and passive shift fork jack respectively; Be provided with actuating unit in clamping fixture seat bottom surface, actuating unit and shift fork lead and fill in that being connected leads with shift fork fills in centrally hole and move up or down; Two slide blocks are detachably provided with for the chuck by Workpiece clamping, two chucks are oppositely arranged.
Further, upwardly form inverted T shape structure in the middle part of described slide block, chuck is arranged on protrusion surface; The both sides of every block slide block are respectively equipped with pressing plate, and pressing plate to be fixed on clamping fixture seat and to be pushed down slide block both sides.
Described chuck is arranged on slide block protrusion surface by chuck mounting blocks, is provided with vertical adjustable plate in slide block outer face, and adjustable plate is fixed by bolt and slide block, and adjustable plate is provided with adjusting bolt, and adjusting bolt passes adjustable plate and is against chuck mounting blocks end face.Make the distance of slide block movement limited because shift fork rotates, may not meet the clamping needs of some workpiece, this structure changes the spacing of chuck mounting blocks further by adjusting bolt, and this spacing determines the spacing of chuck.
The both ends of the surface that two slide blocks are relative are provided with symmetrical draw-in groove, and a shutter is on shift fork guiding plug, and baffle plate two ends are stuck in draw-in groove.Shift fork guiding plug hides by baffle plate, avoid processing the iron produced to cut etc. enter shift fork guiding plug place cavity in, clamping stagnation is brought to moving up and down of shift fork guiding plug.
Described actuating unit is hydraulic mechanism, and hydraulic mechanism comprises oil cylinder and piston.
Compared to existing technology, the present invention has following beneficial effect:
1, the present invention drives two chuck move toward one another by a set of actuating unit, and can realize the clamping to workpiece with dynamics, locating effect is better simultaneously.
2, chuck can be convenient for changing, and to adapt to the clamping needs of different workpieces, flexibility is good.
3, this chuck distance controllability is large, both can be regulated by shift fork, also can be regulated by the adjusting bolt on adjustable plate, and the size span of workpiece is large, and versatility is better.
Accompanying drawing explanation
Fig. 1-Split type structure schematic diagram of the present invention.
Fig. 2-sectional structure chart of the present invention.
Fig. 3-top view of the present invention.
Fig. 4-upward view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, upper as can be seen from figure, positioning fixture of the present invention, comprise clamping fixture seat 1, offer rectangular enclosure on clamping fixture seat 1 surface, in cavity, two ends are provided with rotating shift fork 3 respectively by declutch shift shaft 2, center hole is provided with in the middle part of cavity floor, be provided with the shift fork guiding plug 4 that can slide up and down in center hole, shift fork guiding plug 4 upper end is arranged in cavity, and shift fork guiding plug 4 is in the active shift fork slot 5 being circumferentially provided with ring-type of cavity segment; Chute is provided with on the surface at clamping fixture seat 1, trough width is greater than cavity width, be provided with relative two slide blocks 6 that can horizontally slip along chute in chute, slide block 6 bottom surface is respectively equipped with passive shift fork jack 7, and two shifting blocks of shift fork 3 insert in active shift fork slot 5 and passive shift fork jack 7 respectively; Be provided with actuating unit in clamping fixture seat 1 bottom surface, actuating unit and the shift fork plug 4 that leads is connected to lead with shift fork and fills in centrally hole and move up or down; Two slide blocks 6 are detachably provided with for chuck 8, two chuck 8 of Workpiece clamping is oppositely arranged.
During work, actuating unit shift fork guiding is filled in centrally hole and is moved down, moving down of shift fork guiding plug drives shift fork to center rotating, because shift fork is connected with slide block passing hole, so slide block under the transmission of shift fork along chute slide in opposition, because chuck is arranged on slide block, therefore chuck also relative motion, synchronously clamps placement with the workpiece between chuck thus.If the complete needs of work pieces process unclamp exit, now actuating unit shift fork guiding is filled in centrally hole and to be moved up certain distance, and course of action with clamping on the contrary.
Further, upwardly form inverted T shape structure in the middle part of described slide block 6, chuck 8 is arranged on protrusion surface; The both sides of every block slide block 6 are respectively equipped with pressing plate 9, and pressing plate 9 to be fixed on clamping fixture seat 1 and to be pushed down slide block 6 both sides.Such slide block just can not move up and down, and can only along chute side-to-side movement.So more convenient processing of structure simultaneously and fluting.
Described chuck 8 is arranged on slide block 6 protrusion surface by chuck mounting blocks 10, is provided with vertical adjustable plate 11 in slide block 6 outer face, and adjustable plate 11 is fixed by bolt and slide block 6.Adjustable plate 11 is provided with adjusting bolt 12 simultaneously, and adjusting bolt 12 passes adjustable plate 11 and is against chuck mounting blocks 10 end face.Make the distance of slide block movement limited because shift fork rotates, namely the adjustable range between slide block is limited, may not meet the clamping needs of the larger workpiece of some size difference, this structure changes the spacing of chuck mounting blocks further by adjusting bolt, and this spacing determines the minimum and maximum spacing of chuck.Namely the adjustable range of chuck is shift fork adjustable range and adjusting bolt adjustable range sum, can be practically applicable to the need of different size workpiece like this.If workpiece is pipe, so this device just can have larger accommodation to the external diameter of pipe.
The both ends of the surface that two slide blocks 6 are relative are provided with symmetrical draw-in groove 13, baffle plate 14 cover on shift fork guiding plug 5, baffle plate 14 two ends are stuck in draw-in groove 13.The design of the draw-in groove degree of depth, to make baffle plate can not come off from draw-in groove, no matter slide block is in maximum spacing or minimum spacing.During actual clamping, circular pipe workpiece just can directly be placed on baffle plate, and baffle center position arranges a groove, and pipe can be avoided to be in place rear rolling.Shift fork guiding plug hides by baffle plate, avoid processing the iron produced to cut etc. enter shift fork guiding plug place cavity in because this may bring clamping stagnation to moving up and down of shift fork guiding plug.
Described actuating unit can be stepper motor, and also can be hydraulic mechanism, hydraulic mechanism comprises oil cylinder and piston, drives shift fork guiding plug to move up and down by moving up and down of piston.
The present invention drives two chuck move toward one another by a set of actuating unit dexterously, and can realize the clamping to workpiece with dynamics, locating effect is better simultaneously.Being arranged on slide block due to chuck and can being convenient for changing, to adapt to the clamping needs of different workpieces, flexibility is good.
This chuck distance controllability is large, both can be regulated by shift fork, and also can be regulated by the adjusting bolt on adjustable plate, can adapt to the workpiece that size span is large, versatility is better.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a positioning fixture, it is characterized in that: comprise clamping fixture seat, rectangular enclosure is provided with on clamping fixture seat surface, in cavity, two ends are provided with rotating shift fork respectively by declutch shift shaft, center hole is provided with in the middle part of cavity floor, be provided with shift fork guiding plug in center hole, shift fork guiding beyond the Great Wall end is arranged in cavity, and shift fork guiding plug is in the active shift fork slot being circumferentially provided with ring-type of cavity segment; Chute is provided with on the surface at clamping fixture seat, trough width is greater than cavity width, be provided with relative two slide blocks that can horizontally slip along chute in chute, slide block bottom surface is respectively equipped with passive shift fork jack, and two shifting blocks of shift fork insert in active shift fork slot and passive shift fork jack respectively; Be provided with actuating unit in clamping fixture seat bottom surface, actuating unit and shift fork lead and fill in that being connected leads with shift fork fills in centrally hole and move up or down; Two slide blocks are detachably provided with for the chuck by Workpiece clamping, two chucks are oppositely arranged.
2. a kind of positioning fixture according to claim 1, is characterized in that: upwardly form inverted T shape structure in the middle part of described slide block, chuck is arranged on protrusion surface; The both sides of every block slide block are respectively equipped with pressing plate, and pressing plate to be fixed on clamping fixture seat and to be pushed down slide block both sides.
3. a kind of positioning fixture according to claim 2, it is characterized in that: described chuck is arranged on slide block protrusion surface by chuck mounting blocks, vertical adjustable plate is provided with in slide block outer face, adjustable plate is fixed by bolt and slide block, adjustable plate is provided with adjusting bolt, and adjusting bolt passes adjustable plate and is against chuck mounting blocks end face.
4. a kind of positioning fixture according to claim 2, is characterized in that: in the both ends of the surface that two slide blocks are relative, be provided with symmetrical draw-in groove, and a shutter is on shift fork guiding plug, and baffle plate two ends are stuck in draw-in groove.
5. a kind of positioning fixture according to claim 2, is characterized in that: described actuating unit is hydraulic mechanism, and hydraulic mechanism comprises oil cylinder and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701341.1A CN104440177A (en) | 2014-11-28 | 2014-11-28 | Positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701341.1A CN104440177A (en) | 2014-11-28 | 2014-11-28 | Positioning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104440177A true CN104440177A (en) | 2015-03-25 |
Family
ID=52887339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410701341.1A Pending CN104440177A (en) | 2014-11-28 | 2014-11-28 | Positioning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104440177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127828A (en) * | 2015-09-15 | 2015-12-09 | 苏州听毅华自动化设备有限公司 | Clamping mechanism of left-right transferring mechanism |
| CN105690300A (en) * | 2016-03-23 | 2016-06-22 | 中山市美捷时包装制品有限公司 | Material positioning device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225714A (en) * | 1996-02-16 | 1997-09-02 | Plus Eng:Kk | Four-jaw chuck |
| CN2810916Y (en) * | 2005-04-20 | 2006-08-30 | 盐城市电子设备厂 | Mechanical manipulator capable of rotating freely |
| CN201399788Y (en) * | 2009-05-15 | 2010-02-10 | 竺开明 | Pneumatic control mechanical gripper |
| CN102357894A (en) * | 2011-09-22 | 2012-02-22 | 严义科 | Three-jaw manipulator measuring bearing diameter |
| CN202639700U (en) * | 2012-05-17 | 2013-01-02 | 安徽省金寨县金钢叉车部件制造有限公司 | Positioning welding device for clutch leg and pedal |
| CN204295316U (en) * | 2014-11-28 | 2015-04-29 | 重庆市华青汽车配件有限公司 | Bi-directional synchronization clamping device |
-
2014
- 2014-11-28 CN CN201410701341.1A patent/CN104440177A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225714A (en) * | 1996-02-16 | 1997-09-02 | Plus Eng:Kk | Four-jaw chuck |
| CN2810916Y (en) * | 2005-04-20 | 2006-08-30 | 盐城市电子设备厂 | Mechanical manipulator capable of rotating freely |
| CN201399788Y (en) * | 2009-05-15 | 2010-02-10 | 竺开明 | Pneumatic control mechanical gripper |
| CN102357894A (en) * | 2011-09-22 | 2012-02-22 | 严义科 | Three-jaw manipulator measuring bearing diameter |
| CN202639700U (en) * | 2012-05-17 | 2013-01-02 | 安徽省金寨县金钢叉车部件制造有限公司 | Positioning welding device for clutch leg and pedal |
| CN204295316U (en) * | 2014-11-28 | 2015-04-29 | 重庆市华青汽车配件有限公司 | Bi-directional synchronization clamping device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127828A (en) * | 2015-09-15 | 2015-12-09 | 苏州听毅华自动化设备有限公司 | Clamping mechanism of left-right transferring mechanism |
| CN105690300A (en) * | 2016-03-23 | 2016-06-22 | 中山市美捷时包装制品有限公司 | Material positioning device |
| CN105690300B (en) * | 2016-03-23 | 2018-04-20 | 中山市美捷时包装制品有限公司 | A kind of positioning device for material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
|
| RJ01 | Rejection of invention patent application after publication |