CN104493537A - Two-point symmetric type fixture - Google Patents
Two-point symmetric type fixture Download PDFInfo
- Publication number
- CN104493537A CN104493537A CN201410801612.0A CN201410801612A CN104493537A CN 104493537 A CN104493537 A CN 104493537A CN 201410801612 A CN201410801612 A CN 201410801612A CN 104493537 A CN104493537 A CN 104493537A
- Authority
- CN
- China
- Prior art keywords
- vertical chamber
- pin
- pressure pins
- cam
- bearing
- 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
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 11
- 229920001195 polyisoprene Polymers 0.000 claims description 11
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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
- B23Q3/061—Work-clamping means adapted for holding a plurality of workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a two-point symmetric type fixture. A cam is turned to squeeze pressure pins, and the pressure pins squeeze elastic rubber in a vertical chamber; since the other end of a vertical passage is closed by a locking screw, the elastic rubber is forced to be squeezed into a transverse chamber and deform to push and squeeze the pressure pins, and the pressure pins tightly butt against workpieces placed between the pressure pins and supporting seats. Since the two pressure pins are squeezed by the common elastic rubber, pressing force of the two pressure pins on the workpieces is identical. Thus, identical clamping force acting on the workpieces at two stations can be produced, and processing error caused by different clamping force of multi-station clamping is avoided.
Description
Technical field
The present invention relates to the locking device in a kind of machining, be specifically related to a kind of two point symmetry fixtures.
Background technology
Fixture is used for fixing processing object in machine-building process, makes it to occupy correct position, to accept the device of constructing or detecting.In a broad sense, any operation in technical process, is used for rapidly, installs easily and safely the device of workpiece, all can be described as fixture.Such as weld jig, inspection jig, assembling jig, jig etc.Wherein jig is the most common, often referred to as fixture.On lathe during processing work, the dimensions reaching drawing for making the surface energy of workpiece and specify, geometry and with the technical requirements such as the relative-position error on other surfaces, Workpiece fixing must be installed before processing, clamp.Fixture is made up of setting element, clamping device, tool setting induction element, indexing means, Connection Element and clamp body etc. usually.General fixture only has one to clamp position, and when relating to two clamping positions, common clamping structure can not ensure that the chucking power of each clamping position is substantially identical, makes easily to occur mismachining tolerance because of discontinuity equalization in process.
Summary of the invention
The object of the present invention is to provide a kind of two point symmetry fixtures, workpiece can be fixed on two clamped positions, and the chucking power of each clamped position keeps identical substantially, there will not be workpiece to occur mismachining tolerance because of discontinuity equalization.
For achieving the above object, technical scheme of the present invention is: two point symmetry fixtures, comprise holder, described holder are hinged with the cam of a horizontal positioned, and described cam is provided with the handle of rotation; Described holder offers the cavity of a level, described cavity comprises a vertical chamber and a transverse chambers be communicated with vertical chamber, elastic caoutchouc is provided with in described vertical chamber, a port in described vertical chamber is provided with and compresses pin, the described Hp contacts compressing pin and cam, another port in described vertical chamber is provided with internal thread, and lock-screw is threaded in another port in vertical chamber; Described holder is provided with a bearing, and described bearing is positioned at the opening part of transverse chambers, and the port of described transverse chambers is provided with holding pin, forms clamping part between described holding pin and bearing.
When adopting technique scheme, pass through rotating cam, cam is made to compress pin, by compressing the elastic caoutchouc in the vertical chamber of pin extruding, the other end due to vertical passageway is locked screw closure, force elastic caoutchouc to crimp in transverse chambers, promote and extruding compression pin, make to compress pin and hold out against the workpiece being placed on and compressing and sell between bearing.Because two compression pins are by a common elastic caoutchouc extruding, so two compression pins are identical to the thrust of workpiece.Identical clamping force can be produced like this, the mismachining tolerance that the clamping avoiding multistation causes because grip force is different to the workpiece of two stations.
Further, be threaded in described bearing the fishbolt coaxial with holding pin.This setting by the station size regulating the position of fishbolt to change clamping, can adapt to the clamping of different workpieces.
Further, the described contact surface compressing pin and flange is cambered surface.
Further, to be positioned at the length of both sides, vertical chamber identical for described transverse chambers.This setting can ensure that the pressure of the elastic caoutchouc in transverse chambers is identical further.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of the present invention two point symmetry fixture embodiment.
Detailed description of the invention
As shown in Figure 1, the present invention two point symmetry fixture, comprises holder 1, and holder 1 is hinged with the cam 2 of a horizontal positioned, cam 2 is provided with the handle of rotation.Holder 1 offers the cavity of a level, cavity comprises a vertical chamber and a transverse chambers be communicated with vertical chamber, elastic caoutchouc 3 is provided with in vertical chamber, a port in vertical chamber is provided with and compresses pin 4, compress the Hp contacts of pin 4 and cam 2, compressing pin 4 with the contact surface of flange is cambered surface.Another port in vertical chamber is provided with internal thread, and lock-screw 5 is threaded in another port in vertical chamber.Holder 1 is provided with a bearing 6, and bearing 6 is positioned at the opening part of transverse chambers, and the port of transverse chambers is provided with holding pin 7, forms clamping part between holding pin 7 and bearing 6.Be threaded in bearing 6 fishbolt 8 coaxial with holding pin 7.This setting by the station size regulating the position of fishbolt 8 to change clamping, can adapt to the clamping of different workpieces.The length that transverse chambers is positioned at both sides, vertical chamber is identical.This setting can ensure that the pressure of the elastic caoutchouc 3 in transverse chambers is identical further.
In the present invention, by rotating cam 2, cam 2 is extruded and compresses pin 4, the elastic caoutchouc 3 in vertical chamber is extruded by compression pin 4, be locked screw 5 of the other end due to vertical passageway is closed, force elastic caoutchouc 3 to crimp in transverse chambers, promote and extruding compression pin 4, make to compress pin 4 and hold out against the workpiece being placed on and compressing between pin 4 and bearing 6.Due to two, to compress pins 4 be extruded by a common elastic caoutchouc 3, so two thrusts compressing pin 4 pairs of workpiece are identical.Identical clamping force can be produced like this, the mismachining tolerance that the clamping avoiding multistation causes because grip force is different to the workpiece of two stations.
Above is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; without departing from the inventive concept of the premise; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (4)
1. liang point symmetry fixture, comprises holder, it is characterized in that, described holder is hinged with the cam of a horizontal positioned, and described cam is provided with the handle of rotation; Described holder offers the cavity of a level, described cavity comprises a vertical chamber and a transverse chambers be communicated with vertical chamber, elastic caoutchouc is provided with in described vertical chamber, a port in described vertical chamber is provided with and compresses pin, the described Hp contacts compressing pin and cam, another port in described vertical chamber is provided with internal thread, and lock-screw is threaded in another port in vertical chamber; Described holder is provided with a bearing, and described bearing is positioned at the opening part of transverse chambers, and the port of described transverse chambers is provided with holding pin, forms clamping part between described holding pin and bearing.
2. two point symmetry fixtures according to claim 1, is characterized in that, be threaded in described bearing the fishbolt coaxial with holding pin.
3. two point symmetry fixtures according to claim 1, is characterized in that, the described contact surface compressing pin and flange is cambered surface.
4. two point symmetry fixtures according to claim 1, is characterized in that, the length that described transverse chambers is positioned at both sides, vertical chamber is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801612.0A CN104493537A (en) | 2014-12-22 | 2014-12-22 | Two-point symmetric type fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410801612.0A CN104493537A (en) | 2014-12-22 | 2014-12-22 | Two-point symmetric type fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104493537A true CN104493537A (en) | 2015-04-08 |
Family
ID=52935037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410801612.0A Pending CN104493537A (en) | 2014-12-22 | 2014-12-22 | Two-point symmetric type fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104493537A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0297471A2 (en) * | 1987-06-30 | 1989-01-04 | Chr. Eisele Maschinenfabrik GmbH & Co. KG. | Method for controlling a clamping device |
| CN101318294A (en) * | 2008-06-30 | 2008-12-10 | 上海麦迅机床工具技术有限公司 | Repositioning connection device of positioning for flexibility and fastening for rigidity |
| TW201130597A (en) * | 2009-12-11 | 2011-09-16 | Pascal Eng Corp | Clamping device |
| CN202411895U (en) * | 2011-08-15 | 2012-09-05 | 江门市威特铝业科技有限公司 | Multi-piece clamping device |
| CN103111859A (en) * | 2012-12-09 | 2013-05-22 | 重庆盾铭电磁阀有限公司 | Cam clamping device |
| CN103231324A (en) * | 2013-03-30 | 2013-08-07 | 歌尔声学股份有限公司 | Double-point compressing device |
| CN203665367U (en) * | 2013-12-31 | 2014-06-25 | 深圳迈瑞生物医疗电子股份有限公司 | Clamp |
| CN203696518U (en) * | 2014-02-11 | 2014-07-09 | 常州信息职业技术学院 | Plane clamp |
| CN103962868A (en) * | 2014-04-28 | 2014-08-06 | 常州信息职业技术学院 | One-face two-pin precise positioning system and control method thereof |
| CN104043998A (en) * | 2014-06-23 | 2014-09-17 | 十堰合骏实业有限公司 | Differential case vehicle inner spherical surface two-side pressing clamp |
| CN104162794A (en) * | 2014-05-16 | 2014-11-26 | 苏州工业职业技术学院 | Double-station pneumatic fixture |
| CN204353789U (en) * | 2014-12-22 | 2015-05-27 | 重庆钰康机械有限公司 | Two point symmetry fixtures |
-
2014
- 2014-12-22 CN CN201410801612.0A patent/CN104493537A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0297471A2 (en) * | 1987-06-30 | 1989-01-04 | Chr. Eisele Maschinenfabrik GmbH & Co. KG. | Method for controlling a clamping device |
| CN101318294A (en) * | 2008-06-30 | 2008-12-10 | 上海麦迅机床工具技术有限公司 | Repositioning connection device of positioning for flexibility and fastening for rigidity |
| TW201130597A (en) * | 2009-12-11 | 2011-09-16 | Pascal Eng Corp | Clamping device |
| CN202411895U (en) * | 2011-08-15 | 2012-09-05 | 江门市威特铝业科技有限公司 | Multi-piece clamping device |
| CN103111859A (en) * | 2012-12-09 | 2013-05-22 | 重庆盾铭电磁阀有限公司 | Cam clamping device |
| CN103231324A (en) * | 2013-03-30 | 2013-08-07 | 歌尔声学股份有限公司 | Double-point compressing device |
| CN203665367U (en) * | 2013-12-31 | 2014-06-25 | 深圳迈瑞生物医疗电子股份有限公司 | Clamp |
| CN203696518U (en) * | 2014-02-11 | 2014-07-09 | 常州信息职业技术学院 | Plane clamp |
| CN103962868A (en) * | 2014-04-28 | 2014-08-06 | 常州信息职业技术学院 | One-face two-pin precise positioning system and control method thereof |
| CN104162794A (en) * | 2014-05-16 | 2014-11-26 | 苏州工业职业技术学院 | Double-station pneumatic fixture |
| CN104043998A (en) * | 2014-06-23 | 2014-09-17 | 十堰合骏实业有限公司 | Differential case vehicle inner spherical surface two-side pressing clamp |
| CN204353789U (en) * | 2014-12-22 | 2015-05-27 | 重庆钰康机械有限公司 | Two point symmetry fixtures |
Non-Patent Citations (1)
| Title |
|---|
| 黄继昌: "《实用机械机构图册》", 30 June 1996, 人民邮电出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107617905A (en) | Special combination fixture | |
| CN104384954A (en) | Hole positioning fixture | |
| CN105345495A (en) | Pressing plate type floating clamp | |
| CN104259894A (en) | Base milling clamp | |
| CN104551061A (en) | Floating clamping three-jaw chuck for automobile | |
| CN203062289U (en) | Cam clamping device | |
| CN204353789U (en) | Two point symmetry fixtures | |
| CN104493527A (en) | Three-point type pipe centering and clamping mechanism | |
| CN204353790U (en) | Four point elasticity balancing fixtures | |
| CN104493537A (en) | Two-point symmetric type fixture | |
| CN105881273A (en) | Right-angle clamp | |
| CN104526383A (en) | Four-point elastic balancing fixture | |
| CN104001952A (en) | Centrifugal three-jaw self-centering chuck | |
| CN204353787U (en) | Bikini tubing centering clamping device | |
| CN104493528A (en) | Ratcheted horizontal locking device | |
| CN105538010A (en) | Thin-walled shifting fork turning clamp | |
| CN208696337U (en) | A kind of three-clove style fixture for float grease seal blank turnery processing | |
| CN102909579A (en) | Eccentric clamping fixture | |
| CN208451419U (en) | A kind of slewing parts outer circle clamping limiting device | |
| CN206343943U (en) | A kind of rapid-assembling/disassembling fixture | |
| CN105415050B (en) | A kind of disk ring class accessory turning clamping device | |
| CN107139094A (en) | A kind of square parts clamping device | |
| CN205733991U (en) | A kind of Small Cylindrical body punching parts quick clamping mechanism | |
| CN204658013U (en) | A kind of fixture for rotary type workpiece | |
| CN104117702B (en) | The clamping method of compressor case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |