CN208179009U - Precision location clamp - Google Patents

Precision location clamp Download PDF

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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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CN
China
Prior art keywords
workpiece
positioning
locating piece
positioning column
fixture
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.)
Expired - Fee Related
Application number
CN201820644832.0U
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Chinese (zh)
Inventor
程必达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Daqi Precision Machinery Co Ltd
Original Assignee
Suzhou Daqi Precision Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Daqi Precision Machinery Co Ltd filed Critical Suzhou Daqi Precision Machinery Co Ltd
Priority to CN201820644832.0U priority Critical patent/CN208179009U/en
Application granted granted Critical
Publication of CN208179009U publication Critical patent/CN208179009U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Precision location clamp
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.
CN201820644832.0U 2018-05-02 2018-05-02 Precision location clamp Expired - Fee Related CN208179009U (en)

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)

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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