CN208276774U - A kind of positioning fixture - Google Patents
A kind of positioning fixture Download PDFInfo
- Publication number
- CN208276774U CN208276774U CN201820854247.3U CN201820854247U CN208276774U CN 208276774 U CN208276774 U CN 208276774U CN 201820854247 U CN201820854247 U CN 201820854247U CN 208276774 U CN208276774 U CN 208276774U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- claw
- positioning fixture
- column
- workpiece
- 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.)
- Active
Links
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model, which discloses, is related to mechanical clamp field, discloses a kind of positioning fixture, including pedestal, several claw columns circumferentially distributed along pedestal, and the claw that each claw column of driving is moved to the direction close to or far from base center；Several claw columns can clamp the workpiece for being placed in base center when moving to the direction close to base center；Each claw includes drive rod, and threaded one end is connected to pedestal；Fixed block is sheathed on drive rod and is threadedly coupled with it, and claw column is fixed on fixed block；And guide rod, it is parallel to drive rod setting, sliding is through fixed block and its both ends is both secured to pedestal.The utility model drives claw column to move to the direction close to base center by claw, and then the workpiece for being placed in base center is clamped by several claw columns, the structure of above-mentioned positioning fixture is simple, processing cost is low, it is clamped by the way of point contact, line contact or face contact, it can be suitable for workpiece of various shapes, improve its scope of application and its versatility.
Description
Technical field
The utility model relates to mechanical clamp field more particularly to a kind of positioning fixtures.
Background technique
Special ceramic material has high-melting-point, high rigidity, high-wearing feature, resistance to oxidation, high temperature resistant, anticorrosive, exhausted due to it
The features such as edge, hot spot, piezoelectricity, thermal insulation, using more and more extensive, as semiconductor, optics, biologic medical, chemistry,
The industries such as tool manufacture.Due to the product category of special ceramic material is more, structure is complicated, it is bulk it is small, required precision is high etc.
Factor increases difficulty, efficiency and output period that measurement is examined, causes its positioning difficulty larger, measurement inspection cost investment
Larger, the degree of automation for measuring inspection is lower.
Existing measurement method is usually that three coordinate measuring machine, microscope and image measurer is used to survey product
Amount will usually not have fixed function, and the clamping time is long, repetitive operation low efficiency, smaller scope of application, to clamping special form
The special cermacis product of shape has biggish limitation fixed, and easily blocks product, influences the measurement to product size.
In order to solve the above-mentioned technical problem, therefore it is badly in need of a kind of positioning fixture, to solve the product to special ceramic material
Measure the problem of existing clamping efficiency when inspection is low, measurement inspection cost is high and influences dimensional measurement.
Utility model content
The purpose of this utility model is to provide a kind of positioning fixtures, when measuring inspection special ceramic material product to improve
Positioning clamping efficiency, reduce measurement inspection cost.
For this purpose, the utility model uses following technical scheme:
A kind of positioning fixture, including pedestal, several claw columns circumferentially distributed along the pedestal, and each card of driving
The claw that pawl column is moved to the direction close to or far from the base center；Several claw columns are to close to the base center
Direction movement when can clamp the workpiece for being placed in the base center；Each claw includes:
Drive rod, threaded one end are connected to the pedestal；
Fixed block is sheathed on the drive rod and is threadedly coupled with it, and the claw column is fixed on the fixed block；And
Guide rod, is parallel to drive rod setting, sliding through the fixed block and its both ends be both secured to it is described
Pedestal.
Further, the base center be equipped with part model corresponding with workpiece to be clamped, several claw columns to
The part model for being placed in the base center can be clamped when close to the movement of the direction of the base center, workpiece is placed in the work
It is clamped on part model and by several claw columns.
Further, the pedestal be equipped with the one-to-one groove of the claw, mounting rack is equipped in the groove,
The threaded one end of the drive rod is connected to mounting rack, and the both ends of the guide rod are both secured to the mounting rack.
Further, the claw column is threadedly coupled with the fixed block.
It further, further include pony sill, the pedestal is fixed on the pony sill.
Further, the pony sill includes two mounting plates disposed in parallel, and two mounting plates pass through fastener
The base pinch is set between two mounting plates by connection.
Further, the claw column includes the interconnecting piece being threadedly coupled with the fixed block, and is connected to the connection
The height of the clamping section of portion one end, the clamping section is greater than the first pre-determined distance, and less than the second pre-determined distance.
Further, the drive rod includes screw rod, and the threaded one end of the screw rod is connected to the mounting rack, another
End is connected with handle.
Further, the claw column is equipped at least three.
Further, the pedestal is horizontally disposed, and several claw columns are set to the top of the pedestal.
The utility model has the beneficial effects that the utility model drives claw column to the direction close to base center by claw
Movement, and then the workpiece for being placed in base center is clamped by several claw columns, the structure of above-mentioned positioning fixture is simple, processing cost
It is low, it is clamped by the way of point contact, line contact or face contact, workpiece of various shapes can be suitable for, improve it
The scope of application and its versatility.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of positioning fixture described in the utility model；
Fig. 2 is the connection schematic diagram of claw described in the utility model Yu the mounting rack；
Fig. 3 is the structural schematic diagram of claw column described in the utility model；
Fig. 4 is the structural schematic diagram of pedestal described in the utility model；
Fig. 5 is the structural schematic diagram of pony sill described in the utility model.
In figure:
1, pedestal；11, groove；12, mounting rack；121, sliding groove；
2, claw column；21, interconnecting piece；22, clamping section；
3, claw；31, drive rod；311, screw rod；312, handle；32, fixed block；321, connecting hole；33, guide rod；
4, pony sill；41, mounting plate；42, sliding block.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that
Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs
It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
As shown in Figure 1, a kind of positioning fixture is present embodiments provided, including pedestal 1, it is circumferentially distributed along the pedestal 1
Several claw columns 2, and the claw 3 that each claw column 2 of driving is moved to the direction close to or far from 1 center of pedestal；
Several claw columns 2 can clamp the work for being placed in 1 center of pedestal when moving to the direction close to 1 center of pedestal
Part.
The present embodiment drives claw column 2 to move to the direction close to 1 center of pedestal by claw 3, and then passes through several cards
Pawl column 2 clamps the workpiece for being placed in 1 center of pedestal, and the structure of above-mentioned positioning fixture is simple, and processing cost is low, using point contact, line
Contact or the mode of face contact are clamped, and can be suitable for workpiece of various shapes, improve its scope of application and its general
Property.
Specifically, as shown in Fig. 2, each claw 3 includes that threaded one end is connected to the drive rod 31 of the pedestal 1,
It is sheathed on the fixed block 32 being threadedly coupled on the drive rod 31 and with it, and is parallel to the setting of drive rod 31 and slides and pass through
Wear the guide rod 33 that the fixed block 32 is arranged；The claw column 2 is fixed on the fixed block 32, and the two of the guide rod 33
End is both secured to the pedestal 1.The structure for being similar to lead screw is formed by above structure, when screwing drive rod 31, by
It is threadedly coupled in drive rod 31 with fixed block 32, and guide rod 33 limits the rotation of fixed block 32, so that fixed block 32 is along drive
The axial movement of lever 31 enables claw column 2 along the axial movement of drive rod 31, to close to 1 center of pedestal
Direction movement；The position of each claw column 2 is adjusted convenient for the shape according to workpiece to clamp workpiece.Preferably, the claw column 2
Equipped at least three, the quantity of claw column 2 can be adjusted according to actual needs.
As shown in Figures 2 and 3, the claw column 2 is threadedly coupled with the fixed block 32, specifically, the claw column 2 wraps
The interconnecting piece 21 being threadedly coupled with the fixed block 32 is included, and is connected to the clamping section 22 of described 21 one end of interconnecting piece, the folder
The height in tight portion 22 is greater than the first pre-determined distance, and less than the second pre-determined distance.Wherein fixed block 32 is equipped with connecting hole 321,
Internal screw thread is equipped in connecting hole 321, interconnecting piece 21 is equipped with external screw thread, realizes interconnecting piece by internal screw thread and externally threaded cooperation
Connection between 21 and fixed block 32.
The height of claw column 2, can be according to the height of practical work piece within the scope of the first pre-determined distance and the second pre-determined distance
Degree replacement claw column 2, is threadedly coupled since claw column 2 is used with fixed block 32, convenient to disassembly, improves replacement effect
Rate.Preferably, above-mentioned clamping section 22 is that cylindrical-shaped structure can be avoided clamping section when quickly repeating to be clamped workpiece
22 corner angle collide workpiece and cause workpiece damage.The size of first pre-determined distance and the second pre-determined distance can be according to practical need
It asks determining, is no longer specifically limited herein.
As shown in Figure 1, Figure 2 and Figure 4, the pedestal 1 be equipped with the one-to-one groove 11 of the claw 3, it is described recessed
Mounting rack 12 is equipped in slot 11, the threaded one end of the drive rod 31 is connected to mounting rack 12, and the both ends of the guide rod 33 are equal
It is fixed on the mounting rack 12.By the way that mounting rack 12 is arranged, mounting rack 12 and claw 3, claw column 2 can be formed into a clamping
It is whole, above-mentioned clamping need to be only integrally placed in groove 11 when in use, be quickly and expediently installed, improve installation effectiveness.
Mounting rack 12 is equipped with sliding groove 121, and fixed block 32 is set in sliding groove 121, and part guide rod 33 is placed in sliding
In slot 121 and both ends are pierced by mounting rack 12 from the two lateral walls of sliding groove 121 respectively；Drive rod 31 is from one end of mounting rack 12
It penetrates in sliding groove 121 and is pierced by from the other end of sliding groove 121, it, can be by recessed since mounting rack 12 is placed in groove 11
The inner wall restricted guidance bar 33 of slot 11 and the movement of drive rod 31.
Preferably, above-mentioned drive rod 31 includes screw rod 311, and the threaded one end of the screw rod 311 is connected to the mounting rack
12, the other end is connected with handle 312.By setting handle 312 convenient for screwing, clamping efficiency is improved.
In order to avoid other claw columns 2 impact clamping process, the present embodiment require mounting rack 12 upper surface with
The upper surface of pedestal 1 is in the same plane, can be with when the quantity of the claw column 2 of actual use is less than the quantity of groove 11
Mounting rack 12 will be placed in each groove 11, claw 3 is installed on selected mounting rack 12, claw column 2 can be placed in groove
In 11.
As shown in figure 5, above-mentioned positioning fixture further includes pony sill 4, the pedestal 1 is fixed on the pony sill 4.Specifically
, the pony sill 4 includes two mounting plates 41 disposed in parallel, and two mounting plates 41 will be described by fastener connection
Pedestal 1 is located between two mounting plates 41.Above-mentioned fastener is bolt.It need to will only be fixed with pedestal in actual use
1 pony sill 4 is installed on workbench, and the length direction both ends of each mounting plate 41 are equipped with threaded hole, passes through bolt
Two mounting plates 41 are both secured on workbench by equal fasteners.Certainly pony sill 4 can not also be used, specifically,
Clamping have 1 weight of pedestal of workpiece it is smaller when, can directly will clamping there is the pedestal 1 of workpiece to be placed in workbench, to workpiece carry out
Measurement detection；Clamp have workpiece 1 weight of pedestal it is larger when, pedestal 1 is fixed on the worktable using above-mentioned pony sill 4.
Preferably, above-mentioned mounting plate 41 is equipped with sliding slot, is arranged with the sliding block 42 that can be slided along the chute, sliding block on sliding slot
42 are equipped with threaded hole, and passing through corresponding threaded hole by fasteners such as bolts and be connected to workbench can be realized to pony sill
4 fixation.It can be crossed by above-mentioned setting and corresponding pedestal 1 is selected according to the size of workpiece, and adjusted and slided according to the size of pedestal 1
The position of block 42, then firm banking frame 4, expands the scope of application of fixture described in the present embodiment, versatile.
In the present embodiment, 1 center of pedestal is equipped with part model corresponding with workpiece to be clamped, several claw columns
2 can clamp the part model for being placed in 1 center of pedestal when moving to the direction close to 1 center of pedestal, workpiece is placed in
It is clamped on the part model and by several claw columns 2.The pedestal 1 is horizontally disposed, and several claw columns 2 are set to institute
The top of pedestal 1 is stated, i.e., the movement of vertical direction is not limited, the movement in limit levels direction.
In actual use, part model only need to be placed in 1 center of pedestal, then adjusts claw 3 and passes through respective numbers
Claw column 2 is clamped；When being clamped to workpiece, without taking out part model, automation equipment workpiece need to be only placed in
1 top of pedestal can clamp workpiece by clamping the claw column 2 of part model.
By the way that part model is arranged, it can be improved positioning accuracy, reduce the clamping time, improve clamping efficiency.Above-mentioned workpiece
Model can be replaced using workpiece, to reduce the production cost of positioning fixture, improve the scope of application and versatility.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of positioning fixture, which is characterized in that including pedestal (1), several claw columns circumferentially distributed along the pedestal (1)
And the claw (3) that is moved to the direction close to or far from the pedestal (1) center of each claw column (2) of driving (2),；If
It does to clamp when the claw column (2) moves to the direction close to the pedestal (1) center and is placed in the pedestal (1) center
Workpiece；Each claw (3) includes:
Drive rod (31), threaded one end are connected to the pedestal (1)；
Fixed block (32) is sheathed on the drive rod (31) and is threadedly coupled with it, and the claw column (2) is fixed on the fixation
Block (32)；And
Guide rod (33) is parallel to the drive rod (31) setting, and sliding runs through the fixed block (32) and its both ends is solid
Due to the pedestal (1).
2. positioning fixture according to claim 1, which is characterized in that pedestal (1) center is equipped with and workpiece to be clamped
Corresponding part model, several claw columns (2) can clamp when moving to the direction close to the pedestal (1) center and be placed in
The part model at pedestal (1) center, workpiece are placed on the part model and are clamped by several claw columns (2).
3. positioning fixture according to claim 1, which is characterized in that the pedestal (1) is equipped with and the claw (3) one
One corresponding groove (11), the groove (11) is interior to be equipped with mounting rack (12), and the threaded one end of the drive rod (31) is connected to
The both ends of mounting rack (12), the guide rod (33) are both secured to the mounting rack (12).
4. positioning fixture according to claim 1, which is characterized in that the claw column (2) and the fixed block (32) spiral shell
Line connection.
5. positioning fixture according to claim 1, which is characterized in that further include pony sill (4), the pedestal (1) is fixed
In the pony sill (4).
6. positioning fixture according to claim 5, which is characterized in that the pony sill (4) includes two disposed in parallel
Mounting plate (41), two mounting plates (41) are connected by fastener the pedestal (1) being located in two mounting plates
(41) between.
7. positioning fixture according to claim 1, which is characterized in that the claw column (2) includes and the fixed block
(32) interconnecting piece (21) being threadedly coupled, and it is connected to the clamping section (22) of the interconnecting piece (21) one end, the clamping section
(22) height is greater than the first pre-determined distance, and less than the second pre-determined distance.
8. positioning fixture according to claim 3, which is characterized in that the drive rod (31) includes screw rod (311), described
The threaded one end of screw rod (311) is connected to the mounting rack (12), and the other end is connected with handle (312).
9. positioning fixture according to claim 1, which is characterized in that the claw column (2) is equipped at least three.
10. positioning fixture according to claim 1, which is characterized in that the pedestal (1) is horizontally disposed, several cards
Pawl column (2) is set to the top of the pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854247.3U CN208276774U (en) | 2018-06-04 | 2018-06-04 | A kind of positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854247.3U CN208276774U (en) | 2018-06-04 | 2018-06-04 | A kind of positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208276774U true CN208276774U (en) | 2018-12-25 |
Family
ID=64705631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820854247.3U Active CN208276774U (en) | 2018-06-04 | 2018-06-04 | A kind of positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208276774U (en) |
-
2018
- 2018-06-04 CN CN201820854247.3U patent/CN208276774U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9333547B2 (en) | Refitting mechanism | |
| CN107838687B (en) | A kind of gantry structure installation method of large-sized gantry machine | |
| CN110926400B (en) | Aperture measuring device | |
| CN106017366A (en) | Straightness comprehensive detection device | |
| CN108801150A (en) | A kind of more size list servo detection devices of laser | |
| CN103234488A (en) | Intelligent thickness and parallelism detector | |
| CN105486267B (en) | A kind of internal-and external diameter flexibility self-operated measuring unit of cylindrical part | |
| CN106042080A (en) | Furniture production clamp with adjustable acting surface | |
| CN110207613A (en) | A kind of workpiece two-dimensional on-line measuring device and detection method | |
| CN206223092U (en) | Integrated form measuring table based on dissimilar sensor | |
| CN208276774U (en) | A kind of positioning fixture | |
| CN102927910A (en) | Device used for measuring external thread parameter of steel pipe | |
| CN210400292U (en) | Detection apparatus for arm brushless motor positioning accuracy | |
| CN104677236A (en) | Multifunctional clamp plate | |
| CN111307045A (en) | Method for detecting thickness of thermal spraying coating and detection equipment applying same | |
| CN205969355U (en) | Anchor clamps are used in production of processing yardstick adjustable furniture | |
| JP5735347B2 (en) | Outside dimension measuring machine | |
| CN105881253B (en) | A kind of parts fixing device | |
| CN110411382B (en) | Device and method for detecting flatness of front shell of optical full-detection mobile phone | |
| CN104596406B (en) | Multi-station micro-positioning line displacement measuring device | |
| CN207866178U (en) | A kind of sliding block perpendicularity detection tool | |
| CN207779811U (en) | A kind of device of engineering material detection | |
| CN219694036U (en) | Measuring device | |
| CN105364316B (en) | Automatic laser trimmer for thin-film resistors | |
| CN220250931U (en) | Detection tool for rapidly detecting straightness of round bar material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |