CN208179009U - Precision location clamp - Google Patents
Precision location clamp Download PDFInfo
- Publication number
- CN208179009U CN208179009U CN201820644832.0U CN201820644832U CN208179009U CN 208179009 U CN208179009 U CN 208179009U CN 201820644832 U CN201820644832 U CN 201820644832U CN 208179009 U CN208179009 U CN 208179009U
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- workpiece
- positioning
- locating piece
- positioning column
- fixture
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- 238000000034 method Methods 0.000 abstract description 13
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The lower surface of a kind of precision location clamp, upper surface and workpiece is correspondingly arranged；And at least three positioning columns are convexly equipped on upper surface, each locating piece contraposition of each positioning column and workpiece；The upper surface of each positioning column is confined planes, and positioning pin, the Blind locating holes contraposition of each positioning pin and locating piece are at least convexly equipped on the confined planes of two positioning columns；When workpiece is positioned by fixture, each positioning column of fixture and each locating piece of workpiece support and cooperate；The confined planes of each positioning column are bonded the lower end surface of each locating piece, and the X rotation, Y rotation and Z for limiting workpiece are mobile；The positioning pin of each positioning column is inserted into the Blind locating holes of each locating piece, is closely positioned with Blind locating holes, and the X movement, Y movement and Z rotation of workpiece are limited.The utility model can reliably guarantee that lathe carries out accurately surface to workpiece and processes, the yield rate of product almost 100%；All process steps can be processed in clamped one time, the non-cutting time of clamping centering is greatly saved, and effect can be improved 40% or more.
Description
Technical field
The utility model relates to field of machining and machinebuilding technology, and in particular to a kind of positioning fixture, the positioning fixture is for solid
Determine workpiece, is milled on processing center machine tool to secure the workpiece against, bores processing.
Background technique
With the continuous development of society, scientific and technological to be constantly progressive, manufacturing development also very rapidly, and manufacturing hair
Exhibition bring is the demand of a large amount of production equipment specials, and but, the structural component of these production equipment specials is (hereinafter referred to as
" workpiece ") processing often a great problem in the industry.
This is because production equipment special often there are some special functional requirements, therefore processed to its workpiece
When, the depth of parallelism, verticality requirement such as workpiece each face more harsh to the requirement on machining accuracy of workpiece, the arc surface of workpiece
With the required precision in hole on workpiece etc..In order to guarantee above-mentioned requirement on machining accuracy, need workpiece during workpieces processing
It is steadily and reliably fixed on lathe, the puzzlement of vibration is brought when overcoming processing, because of process system rigidity deficiency with true
It protects machining accuracy and then meets design requirement.Therefore, workpiece can not only be stablized by designing reasonable positioning fixture, and then guarantee work
The machining accuracy of part, while processing efficiency can also be improved, i.e. the design of positioning fixture is a key component in manufacturing process.
A kind of special-shaped workpiece 1 to be processed for example, as shown in Fig. 1 ~ 4, the workpiece 1 include multiple planes and
Multiple sides, processing request are the flatness 0.015mm in the face flatness 0.015mm, C 4 in the face A 2；The verticality in the face A 2 and the face C 4
The depth of parallelism 0.02mm in the face 0.02mm, B 3 and the face C 4；It is related to multiple processes, is adding man-hour requirement in different processes to workpiece
Position adjustment is carried out, and is reliably positioned after requiring adjustment, difficulty is high.Reason includes: that one, workpiece quality itself is big, positioning
When loading, unloading it is not convenient, difficulty is big；Two, the high stability of the positioning requirements of workpiece cannot have at all in three axial directions
Mobile or rotation；Three, the processing of workpiece is related to multiple processes, and the positioning of workpiece in different processes is required to absolute stability.Base
In the above problem, existing frock clamp is unable to satisfy the positioning requirements of the workpiece, leads to not realize using machine tool to this
Workpiece carries out high-precision surface processing.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the project to be studied of the utility model.
Summary of the invention
The purpose of the utility model is to provide a kind of precision location clamps.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of precision location clamp, it is downwardly convex on the lower surface of the workpiece to be equipped at least three for one workpiece of positioning
Locating piece, each locating piece all have a horizontal lower end face, and on the lower end surface of at least two locating pieces along the vertical direction
It is recessed with Blind locating holes；
The fixture has a plate-like body, and the upper surface of the plate-like body and the lower surface of the workpiece are correspondingly arranged；
Upward convex on the upper surface of the plate-like body to be equipped at least three positioning columns, each positioning column is each described with the workpiece
Locating piece contraposition setting；
Wherein, the upper surface of each positioning column is confined planes, and upward convex on the confined planes of at least two positioning columns
Equipped with positioning pin, the Blind locating holes of each positioning pin and the locating piece, which align, to be arranged；
When the workpiece is positioned by the fixture, each positioning column of fixture and each locating piece of workpiece are supported
Cooperation；The confined planes of each positioning column are bonded the lower end surface of each locating piece, limit wherein three freedom of the workpiece
Degree, i.e. X rotation, Y rotation and Z are mobile；The positioning pin of each positioning column is inserted into the Blind locating holes of each locating piece, with institute
It states Blind locating holes closely to position, limits the other three freedom degree of the workpiece, is i.e. X is mobile, Y is mobile and Z rotation.
Related content in above-mentioned technical proposal is explained as follows:
1. in above scheme, the positioning pin is expansion pin, closely positioned with the Blind locating holes, positioning accuracy reaches
0.015mm.In addition to expansion pin, the other types of positioning pin such as rhombus pin also can be used.
2. in above scheme, when the locating piece and the positioning column are three, three positioning columns are triangular in shape
It is arranged in the upper surface of the fixture.
3. in above scheme, being recessed with the Blind locating holes on the lower end surface of each locating piece；Each positioning column
Confined planes on be convexly equipped with the positioning pin.
The working principle and advantage of the utility model are as follows:
The lower surface of a kind of precision location clamp of the utility model, upper surface and workpiece is correspondingly arranged；And on upper surface
It is convexly equipped at least three positioning columns, each locating piece contraposition of each positioning column and workpiece；The upper surface of each positioning column is confined planes, until
Positioning pin, the Blind locating holes contraposition of each positioning pin and locating piece are convexly equipped on the confined planes of few two positioning columns；When workpiece is by fixture
When positioning, each positioning column of fixture and each locating piece of workpiece support and cooperate；The confined planes of each positioning column are bonded each locating piece
Lower end surface, the X rotation, Y rotation and Z for limiting workpiece are mobile；The positioning pin of each positioning column is inserted into the Blind locating holes of each locating piece,
Limit the X movement, Y movement and Z rotation of workpiece.
Compared to existing technologies, the utility model can effectively limit workpiece in X to the positioning stablity of workpiece and reliable
Axis, Y-axis, Z-direction displacement, and effectively limitation workpiece is around X-axis, Y-axis, Z axis rotation；It can reliably guarantee that lathe carries out workpiece
Accurately surface processes, the yield rate of product almost 100%；In addition all process steps can be processed in clamped one time, replaced completely
In generation, former clamping in two times completed the scheme of all machined surfaces, the non-cutting time of clamping centering was greatly saved, effect can be improved
40% or more.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram one (top visual angle) of workpiece；
Attached drawing 2 is the structural schematic diagram two (top visual angle) of workpiece；
Attached drawing 3 is the structural schematic diagram three (top visual angle) of workpiece；
Attached drawing 4 is the structural schematic diagram four (lower section visual angle) of workpiece；
Attached drawing 5 is the structural schematic diagram of the utility model embodiment；
Attached drawing 6 is the status diagram one (visual angle Fig. 1) when the utility model embodiment positions workpiece；
Attached drawing 7 is the status diagram two (visual angle Fig. 2) when the utility model embodiment positions workpiece；
Attached drawing 8 is the status diagram three (visual angle Fig. 3) when the utility model embodiment positions workpiece.
In the figures above: 1. workpiece；The face 2.A；The face 3.B；The face 4.C；5. locating piece；6. lower end surface；7. Blind locating holes；8. plate
Shape main body；9. positioning column；10. confined planes；11. positioning pin.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: referring to shown in attached drawing 1 ~ 8, a kind of precision location clamp is used to position a workpiece 1, the upper table of the workpiece 1
Face is equipped with the face A 2 and the face C 4 to be processed, and the side of workpiece 1 is equipped with the face B 3 to be processed.
Downwardly convex on the lower surface of the workpiece 1 to set there are three locating piece 5, each locating piece 5 all has under a level
End face 6, and it is wherein recessed with Blind locating holes 7 along the vertical direction on the lower end surface 6 of two locating pieces 5.
As shown in figure 5, the fixture has a plate-like body 8, under the upper surface of the plate-like body 8 and the workpiece 1
Surface is correspondingly arranged；Upward convex on the upper surface of the plate-like body 8 to set there are three positioning column 9, three positioning columns 9 are in triangle
Each contraposition of locating piece 5 of shape arrangement, each positioning column 9 and the workpiece 1 is arranged.
Wherein, the upper surface of each positioning column 9 is confined planes 10, and wherein on the confined planes 10 of two positioning columns 9
Upward convex to be equipped with positioning pin 11, the Blind locating holes 7 of each positioning pin 11 and the locating piece 5 align setting.
As shown in Fig. 6 ~ 8, when the workpiece 1 is positioned by the fixture, each positioning column 9 and the workpiece 1 of fixture
Each support of the locating piece 5 cooperation；The confined planes 10 of each positioning column 9 are bonded the lower end surface 6 of each locating piece 5, limitation
The wherein three degree of freedom of the workpiece 1, i.e. X rotation, Y rotation and Z are mobile；The positioning pin 11 of each positioning column 9 is inserted into respectively
In the Blind locating holes 7 of the locating piece 5, with the closely positioning of Blind locating holes 7, the other three for limiting the workpiece 1 is free
Degree, i.e. X is mobile, Y is mobile and Z rotation.
Wherein, the Blind locating holes 7 can be recessed on the lower end surface 6 of each locating piece 5, each positioning column 9
The positioning pin 11 can be convexly equipped on confined planes 10.
Wherein, the positioning pin 11 can be expansion pin, and positioning accuracy reaches 0.015mm.In addition to expansion pin, also it can be used such as
The other types of positioning pin 11 such as rhombus pin.
Compared to existing technologies, the utility model can effectively limit workpiece in X to the positioning stablity of workpiece and reliable
Axis, Y-axis, Z-direction displacement, and effectively limitation workpiece is around X-axis, Y-axis, Z axis rotation；It can reliably guarantee that lathe carries out workpiece
Accurately surface processes, the yield rate of product almost 100%；In addition all process steps can be processed in clamped one time, replaced completely
In generation, former clamping in two times completed the scheme of all machined surfaces, the non-cutting time of clamping centering was greatly saved, effect can be improved
40% or more.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (4)
1. a kind of precision location clamp, for positioning a workpiece, it is characterised in that:
Downwardly convex on the lower surface of the workpiece to be equipped at least three locating pieces, each locating piece all has a horizontal lower end
Face, and it is recessed with Blind locating holes along the vertical direction on the lower end surface of at least two locating pieces；
The fixture has a plate-like body, and the upper surface of the plate-like body and the lower surface of the workpiece are correspondingly arranged；It is described
It is upward convex on the upper surface of plate-like body to be equipped at least three positioning columns, each positioning of each positioning column and the workpiece
Block contraposition setting；
Wherein, the upper surface of each positioning column is confined planes, and upward convex on the confined planes of at least two positioning columns is equipped with
The Blind locating holes of positioning pin, each positioning pin and the locating piece, which align, to be arranged；
When the workpiece is positioned by the fixture, each locating piece support of each positioning column and workpiece of fixture is matched
It closes；The confined planes of each positioning column are bonded the lower end surface of each locating piece, limit the wherein three degree of freedom of the workpiece,
That is X rotation, Y rotation and Z are mobile；The positioning pin of each positioning column is inserted into the Blind locating holes of each locating piece, and described
Blind locating holes closely position, and limit the other three freedom degree of the workpiece, i.e. X is mobile, Y is mobile and Z rotation.
2. fixture according to claim 1, it is characterised in that: the positioning pin is expansion pin, close with the Blind locating holes
Positioning, positioning accuracy reach 0.015mm.
3. fixture according to claim 1, it is characterised in that: when the locating piece and the positioning column are three,
Three positioning columns are triangularly arranged in the upper surface of the fixture.
4. fixture according to claim 1, it is characterised in that: it is described fixed to be recessed on the lower end surface of each locating piece
Position blind hole；The positioning pin is convexly equipped on the confined planes of each positioning column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820644832.0U CN208179009U (en) | 2018-05-02 | 2018-05-02 | Precision location clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820644832.0U CN208179009U (en) | 2018-05-02 | 2018-05-02 | Precision location clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208179009U true CN208179009U (en) | 2018-12-04 |
Family
ID=64431849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820644832.0U Expired - Fee Related CN208179009U (en) | 2018-05-02 | 2018-05-02 | Precision location clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208179009U (en) |
-
2018
- 2018-05-02 CN CN201820644832.0U patent/CN208179009U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 |