CN113814756A - High-precision clamping indexing device for workpieces - Google Patents
High-precision clamping indexing device for workpieces Download PDFInfo
- Publication number
- CN113814756A CN113814756A CN202111147164.3A CN202111147164A CN113814756A CN 113814756 A CN113814756 A CN 113814756A CN 202111147164 A CN202111147164 A CN 202111147164A CN 113814756 A CN113814756 A CN 113814756A
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- China
- Prior art keywords
- fixed
- clamping
- handle
- rotating shaft
- moving part
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- Pending
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- 230000013011 mating Effects 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
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
-
- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/26—Control or regulation of position of tool or workpiece of angular 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
Abstract
The invention relates to a high-precision workpiece clamping and indexing device. The utility model provides a work piece high accuracy clamping indexing means, its characterized in that includes the mounting and uses the rotation axis to rotate the moving part that is fixed in on the mounting as the center, the moving part is kept away from and is equipped with the clamping subassembly that is used for the clamping work piece on the terminal surface of mounting, the moving part is fixed with the rotation axis coaxial rotation axis, the mounting has the edge the mating holes that the rotation axis extends, the rotation axis is located in the mating holes, the terminal surface department that the mounting closes on the moving part is equipped with the fixed orifices, be equipped with in the fixed orifices and stretch out to fixed outer elastic locating pin, the moving part closes on being equipped with a plurality of locating holes that use the rotation axis to set up as the even interval of central annular on the terminal surface of mounting, be equipped with the limit structure who is used for making moving part axial displacement and can load moving part rotation resistance between rotation axis and mounting. The invention has the advantages of high-precision processing of workpieces and lower cost.
Description
Technical Field
The invention relates to a high-precision workpiece clamping and indexing device.
Background
Chinese patent application No. 201520585488.9 discloses a clamping indexing device, including supporting component, rotatory indexing component, centre gripping subassembly, rotatory indexing component includes bearing, roating seat, graduated disk, and the centre gripping subassembly includes holding screw, and holding screw passes a support side hole, withstands the roating seat. The scheme discloses a simple clamping dividing device, which has the advantages of low cost and good economical efficiency, but has the following defects: the anti-rotation fixing of the rotating seat is realized through the lateral set screw positioned on the rotating seat, but the set screw can apply radial force to the rotating seat, the precision of the radial position of a workpiece fixed on the rotating seat is not high, and the machining precision is difficult to guarantee.
Disclosure of Invention
The invention aims to provide a workpiece high-precision clamping indexing device which is low in cost and can realize high-precision clamping of workpieces.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-precision workpiece clamping and indexing device comprises a fixed part and a movable part which is rotationally fixed on the fixed part by taking a rotation axis as a center, the end surface of the moving part far away from the fixed part is provided with a clamping assembly for clamping a workpiece, the moving part is fixed with a rotating shaft coaxial with the rotating axis, the fixing member has a fitting hole extending along the rotation axis, the rotation axis is located in the fitting hole, the end surface of the fixed part close to the movable part is provided with a fixed hole, an elastic positioning pin which can extend out of the fixed part is arranged in the fixed hole, a plurality of positioning holes which are uniformly arranged at intervals in an annular way by taking the rotating axis as the center are arranged on the end surface of the movable piece close to the fixed piece, the distance between the elastic positioning pin and the rotating shaft is the same as the distance between the positioning hole and the rotating shaft, and a limiting structure which is used for enabling the movable piece to axially move and loading the rotation resistance of the movable piece is arranged between the rotating shaft and the fixed piece.
When the device is used, a workpiece is clamped and fixed through the clamping assembly, then the workpiece is machined, when other positions of the workpiece need to be machined, the limitation of the limiting structure on the movable piece is removed, then the movable piece rotates, the elastic locating pin moves into the other locating hole, then the position of the movable piece is limited, the movable piece moves along the side of the rotating axis through the limiting structure, so that the movable piece is stressed by axial pressure, the rotation of the movable piece is limited, and the workpiece is positioned and fixed again to facilitate machining. The invention can realize the indexing rotation of the workpiece, the movable part is not stressed radially, the radial position of the workpiece cannot move, the concentricity of the machining position of the workpiece at each time is higher, and the high-precision machining of the workpiece can be realized. And the invention adopts the locating hole and elastic locating pin to realize the rotation of the fixed angle of the moving part, thus the cost is lower.
Preferably, the limiting structure comprises an elastic handle and a fixing block, the elastic handle is movably connected with the fixing piece, the fixing block is arranged on the rotating shaft, the elastic handle comprises a limiting portion sleeved on the rotating shaft, and the elastic handle moves to enable the limiting portion to move axially along the rotating shaft and abut against the fixing block, so that the rotating resistance of the moving part during rotation is increased. Wherein, spacing portion is established at the rotation epaxial, and the fixed block also sets up on the rotation axis, and when spacing portion and fixed block butt, the moving part is the axial atress, can avoid moving part radial movement when guaranteeing the restriction moving part rotation to guarantee the fixed effect of clamping of work piece. Only need carry out the rotation of elasticity handle, alright in order to realize the elasticity to the moving part, it is more convenient to use, and the cost is lower.
Preferably, the fixing part comprises a first matching portion extending towards the direction away from the moving part, an external thread structure is formed on the outer wall of the first matching portion, the tightening handle is provided with a second matching portion sleeved outside the first matching portion, and an internal thread structure matched with the external thread structure is arranged on the inner wall of the second matching portion. The movement of spacing portion can be realized through the mode of rotating the elasticity handle to realize the butt of spacing portion and fixed block.
Preferably, the elasticity handle includes handle body, connecting portion and spacing portion, handle body one end is articulated with the mounting, and the relative both ends of connecting portion are articulated with handle body and spacing portion respectively, the relative mounting of handle body rotates in order to adjust the position of spacing portion on the rotation axis. The elastic handle is provided with a connecting rod structure similar to a rapid clamp, and the handle body rotates to realize axial movement of the limiting part, so that the fixing block is compressed.
Preferably, the elastic handle is located between the movable piece and the fixed block. When the limiting portion of the elastic handle abuts against the fixed block, the movable piece can move along the axial direction and is in contact with the fixed piece, and along with the continuous movement of the elastic handle, the end face of the movable piece can abut against the end face of the fixed piece so as to further limit the relative rotation of the movable piece with respect to the fixed piece.
Preferably, a plane bearing is arranged between the elastic handle and the fixed block. Through setting up the plane bearing to make the moving part more easily rotate after the pine presss from both sides handle and looses.
Preferably, the fixing block is screw-fitted to the rotary shaft. Can be through the mode of adjusting the fixed block position to adjust the frictional resistance between spacing portion and fixed block, thereby adjust the moving part pivoted elasticity.
Preferably, a rotating handle is fixed on the side surface of the movable piece. The rotating handle is arranged on the side of the movable part, so that a user can operate the movable part to rotate conveniently.
The invention has the advantages of high-precision processing of workpieces and lower cost.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a structure at a confinement structure of embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a structure of a confinement structure in embodiment 2 of the present invention.
Detailed Description
The invention is further described below with reference to the figures and specific embodiments.
Example 1
As shown in fig. 1 and 2, the high-precision workpiece clamping and indexing device of the present invention includes a fixed member 1 and a movable member 2 rotatably supported and fixed on an upper side of the fixed member 1 with a rotation axis as a center, wherein a clamping assembly 3 for clamping a workpiece is disposed on an upper end surface of the movable member 2, and the clamping assembly 3 of the present embodiment is any one of chuck jaws.
A rotating shaft 21 which is coaxial with the rotating axis and extends downwards is fixed on the lower side of the moving part 2, the fixing part 1 is provided with a matching hole which extends along the rotating axis and penetrates through the rotating axis, the rotating shaft 21 is positioned in the matching hole, a fixing hole is arranged at the upper end face of the fixing part 1, an elastic positioning pin 4 which can extend out of the fixing part is arranged in the fixing hole, a plurality of positioning holes 20 which are annularly and uniformly arranged by taking the rotating axis as a center are arranged on the lower end face of the moving part 2, the distance between the elastic positioning pin 4 and the rotating axis is the same as the distance between the positioning holes and the rotating axis, and a limiting structure 5 which is used for enabling the moving part 2 to move axially and loading the rotating resistance of the moving part 2 is arranged between the rotating shaft 21 and the fixing part 1.
The limiting structure comprises an elastic handle 51 and a fixing block 52, the elastic handle 51 is movably connected with the fixing part 1, the fixing block 52 is arranged on the rotating shaft 21, the elastic handle 51 comprises a limiting portion 511 sleeved on the rotating shaft 21, and the elastic handle 51 moves to enable the limiting portion 511 to axially move along the rotating shaft 21 and abut against the fixing block 52, so that the rotating resistance of the moving part 2 during rotation is increased.
The fixing member 1 includes a first fitting portion 11 extending in a direction away from the movable member, an external thread structure is formed on an outer wall of the first fitting portion 11, the elastic handle 51 has a second fitting portion 512 sleeved outside the first fitting portion 11, and an internal thread structure matched with the external thread structure is formed on an inner wall of the second fitting portion 512.
The tightening handle 51 is located between the moving member 2 and the fixed block 52, the flat bearing 53 is disposed between the tightening handle 51 and the fixed block 52, the fixed block 52 is nut-shaped and is in threaded fit with the rotating shaft 21, and the rotating handle 10 is fixed on the side surface of the moving member 1.
Example 2
As shown in fig. 3, the elastic handle 51 includes a handle body 513, a connecting portion 514 and a limiting portion 511, one end of the handle body 513 is hinged to the fixing member 1, two opposite ends of the connecting portion 514 are hinged to the handle body 513 and the limiting portion 511, respectively, and the handle body 513 rotates relative to the fixing member 1 to adjust the position of the limiting portion 511 on the rotating shaft 21.
The invention has the advantages of high-precision processing of workpieces and lower cost.
Claims (8)
1. A high-precision workpiece clamping and indexing device is characterized by comprising a fixed part and a movable part which is rotationally fixed on the fixed part by taking a rotation axis as a center, the end surface of the moving part far away from the fixed part is provided with a clamping assembly for clamping a workpiece, the moving part is fixed with a rotating shaft coaxial with the rotating axis, the fixing member has a fitting hole extending along the rotation axis, the rotation axis is located in the fitting hole, the end surface of the fixed part close to the movable part is provided with a fixed hole, an elastic positioning pin which can extend out of the fixed part is arranged in the fixed hole, a plurality of positioning holes which are uniformly arranged at intervals in an annular way by taking the rotating axis as the center are arranged on the end surface of the movable piece close to the fixed piece, the distance between the elastic positioning pin and the rotating shaft is the same as the distance between the positioning hole and the rotating shaft, and a limiting structure which is used for enabling the movable piece to axially move and loading the rotation resistance of the movable piece is arranged between the rotating shaft and the fixed piece.
2. The high-precision workpiece clamping and indexing device according to claim 1, wherein the limiting structure comprises an elastic handle and a fixed block, the elastic handle is movably connected with the fixed member, the fixed block is arranged on the rotating shaft, the elastic handle comprises a limiting portion sleeved on the rotating shaft, and the elastic handle moves to enable the limiting portion to move axially along the rotating shaft and abut against the fixed block, so that the rotation resistance of the movable member during rotation is increased.
3. A high-precision clamping and indexing device for workpieces as claimed in claim 2, wherein the fixed member comprises a first engaging portion extending away from the movable member, an external thread structure is formed on the outer wall of the first engaging portion, the tightening handle comprises a second engaging portion sleeved on the outside of the first engaging portion, and an internal thread structure matched with the external thread structure is formed on the inner wall of the second engaging portion.
4. A workpiece high-precision clamping and indexing device as claimed in claim 2, wherein the tightening and loosening handle comprises a handle body, a connecting portion and the limiting portion, one end of the handle body is hinged to the fixing member, the opposite ends of the connecting portion are hinged to the handle body and the limiting portion respectively, and the handle body rotates relative to the fixing member to adjust the position of the limiting portion on the rotating shaft.
5. A workpiece high-precision clamping and indexing device as claimed in claim 2, 3 or 4, wherein the elastic handle is located between the movable member and the fixed block.
6. A workpiece high-precision clamping and indexing device as claimed in claim 2, 3 or 4, wherein a plane bearing is arranged between the elastic handle and the fixed block.
7. The high-precision workpiece clamping and indexing device according to claim 2, 3 or 4, wherein the fixed block is in threaded fit with the rotating shaft.
8. A workpiece high-precision clamping and indexing device as claimed in claim 2, 3 or 4, wherein a rotary handle is fixed on the side surface of the movable member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147164.3A CN113814756A (en) | 2021-09-29 | 2021-09-29 | High-precision clamping indexing device for workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147164.3A CN113814756A (en) | 2021-09-29 | 2021-09-29 | High-precision clamping indexing device for workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113814756A true CN113814756A (en) | 2021-12-21 |
Family
ID=78915868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111147164.3A Pending CN113814756A (en) | 2021-09-29 | 2021-09-29 | High-precision clamping indexing device for workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113814756A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659316A (en) * | 2012-09-25 | 2014-03-26 | 珠海格力电器股份有限公司 | Rotating clamp and lathe with the same |
| CN204976082U (en) * | 2015-08-06 | 2016-01-20 | 浙江师范大学 | Quick clamping ring flange index hole adds clamping apparatus |
| CN105443951A (en) * | 2015-12-15 | 2016-03-30 | 重庆触视科技有限公司 | Jacking device for adjusting projector |
| CN105710720A (en) * | 2016-04-01 | 2016-06-29 | 中航飞机股份有限公司西安飞机分公司 | Milling clamp for hexagonal structure and using method |
| CN106670852A (en) * | 2017-01-20 | 2017-05-17 | 浙江大学 | Internal supporting and supporting taper adjustable fixture for machine tool |
| CN107052405A (en) * | 2017-05-24 | 2017-08-18 | 国营第六六厂 | A kind of high-precision high-efficiency overturns drilling clamp |
| CN107350853A (en) * | 2017-09-05 | 2017-11-17 | 南通理工学院 | Clamping device is used in a kind of CNC milling machine |
| CN208811713U (en) * | 2018-10-10 | 2019-05-03 | 深圳市精钻智能制造有限公司 | Indexing device is used in a kind of machining |
| CN209305454U (en) * | 2019-01-14 | 2019-08-27 | 临沂市祥云金属制品有限公司 | A kind of buckle-type cargo supports bar |
| CN212286735U (en) * | 2020-04-15 | 2021-01-05 | 东莞市普华精密机械有限公司 | Machining device with adjustable indexing and changeable angle |
-
2021
- 2021-09-29 CN CN202111147164.3A patent/CN113814756A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659316A (en) * | 2012-09-25 | 2014-03-26 | 珠海格力电器股份有限公司 | Rotating clamp and lathe with the same |
| CN204976082U (en) * | 2015-08-06 | 2016-01-20 | 浙江师范大学 | Quick clamping ring flange index hole adds clamping apparatus |
| CN105443951A (en) * | 2015-12-15 | 2016-03-30 | 重庆触视科技有限公司 | Jacking device for adjusting projector |
| CN105710720A (en) * | 2016-04-01 | 2016-06-29 | 中航飞机股份有限公司西安飞机分公司 | Milling clamp for hexagonal structure and using method |
| CN106670852A (en) * | 2017-01-20 | 2017-05-17 | 浙江大学 | Internal supporting and supporting taper adjustable fixture for machine tool |
| CN107052405A (en) * | 2017-05-24 | 2017-08-18 | 国营第六六厂 | A kind of high-precision high-efficiency overturns drilling clamp |
| CN107350853A (en) * | 2017-09-05 | 2017-11-17 | 南通理工学院 | Clamping device is used in a kind of CNC milling machine |
| CN208811713U (en) * | 2018-10-10 | 2019-05-03 | 深圳市精钻智能制造有限公司 | Indexing device is used in a kind of machining |
| CN209305454U (en) * | 2019-01-14 | 2019-08-27 | 临沂市祥云金属制品有限公司 | A kind of buckle-type cargo supports bar |
| CN212286735U (en) * | 2020-04-15 | 2021-01-05 | 东莞市普华精密机械有限公司 | Machining device with adjustable indexing and changeable angle |
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