CN104096937B - Workpiece blank part method for rapidly positioning and positioning fixture - Google Patents
Workpiece blank part method for rapidly positioning and positioning fixture Download PDFInfo
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- CN104096937B CN104096937B CN201410319263.9A CN201410319263A CN104096937B CN 104096937 B CN104096937 B CN 104096937B CN 201410319263 A CN201410319263 A CN 201410319263A CN 104096937 B CN104096937 B CN 104096937B
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Abstract
The present invention relates to field of machining, especially relate to a kind of workpiece blank part method for rapidly positioning and positioning fixture.Workpiece blank part Quick-positioning clamp includes positioning seat, positioning seat is provided with for the upper compressing member from workpiece blank top workpiece pressing blank, upper compressing member is provided with for the spacing inclined-plane that coordinates, inclined-plane, location with workpiece blank top, positioning seat is provided with at the side towards described spacing inclined-plane for stop workpiece blank move in the corresponding direction before and after block location structure.The workpiece blank part Quick-positioning clamp of the present invention is possible not only to improve the clamping efficiency to workpiece blank, and the reliability to workpiece blank clamping can be increased, improve its assembly precision, therefore, the workpiece blank part Quick-positioning clamp of the present invention solves in the spark cutting course of processing problem that clamping workpiece efficiency is low, positioning precision is poor.
Description
Technical field
The present invention relates to field of machining, especially relate to a kind of workpiece blank part method for rapidly positioning and positioning fixture.
Background technology
When workpiece processed by lathe, for make the crudy of workpiece reach the size of regulation, geometry and with the requirement such as the relative-position error on other surface, workpiece must be positioned before processing.Principle of six-point fixing will be observed in the location of any shape workpiece, i.e. workpiece has six-freedom degree (one-movement-freedom-degree along three rectangular coordinate direction of principal axis of x, y, z and the rotational freedom around these three coordinate axes) in space, to determine the position of workpiece completely, be necessary for limiting this six-freedom degree.
As a kind of machining mode, Wire EDM is mainly used in processing variously-shaped complexity and the tiny workpiece of precision, has that allowance is little, machining accuracy high, and now being accurately positioned of workpiece is particularly important.
In actual production, multiple tracks cutting action is typically used to complete for some baroque special-shaped workpieces produced in batches, when cutting out workpiece blank part from raw material, raw-material location easily realizes, difficult point is the location of workpiece in follow-up cutting action, the hi-Fix of workpiece blank part to be realized, its six-freedom degree need to be limited, existing positioning device structure is complicated, complex operation, therefore typically use the clamping step leaving protrusion in front road cutting action on workpiece blank part, it is positioned on the crossbeam of electric spark linear cutting machine workbench to facilitate later process to utilize clamping step to be compressed by workpiece blank part, as shown in Figure 1, including clamping step 1001 and cut main body 1002, in figure, arrow is compaction direction and cut direction.Owing to the method only limit four degree of freedom of workpiece blank part, belong to and owe location, so workpiece there is problems in that in position fixing process (1) positions the most completely due to workpiece blank part, compaction process will be moved and in the horizontal direction in vertical direction run-off the straight and torsion, position inaccurate；(2) less due to constraint, workpiece blank part needs the long period to be corrected adjusting in clamping process；(3) for ensureing cutting accuracy, it is intended to adjust the perpendicularity of molybdenum filament when changing workpiece blank part, adjusts the cycle long, inefficient；(4) owing to being affected by anthropic factor, repetitive positioning accuracy is poor, and the finished form that cuts out, dimensional accuracy disunity, crudy is difficult to control to.
Summary of the invention
It is an object of the invention to provide a kind of workpiece blank part method for rapidly positioning, to solve in the spark cutting course of processing problem that clamping workpiece efficiency is low, positioning precision is poor.
Meanwhile, the present invention also aims to provide a kind of workpiece blank part Quick-positioning clamp that can be used for implementing said method.
In order to solve the problems referred to above, the workpiece blank part method for rapidly positioning of the present invention by the following technical solutions: workpiece blank part method for rapidly positioning, including to the left and right positioning step of workpiece blank part and to workpiece blank part up and down before and after positioning step；Left and right positioning step is to be pressed on a positioning seat by workpiece blank part from the left side of workpiece blank part and/or right side by corresponding side compression part；Before and after up and down, positioning step is to be pressed on described positioning seat from the top of workpiece blank part by workpiece blank part by corresponding upper compressing member, wherein there is clamping step on workpiece blank part, the top of clamping step is provided with inclined-plane, location, upper compressing member is provided with the spacing inclined-plane corresponding with the locating latch face on clamping step, it is provided with front-and-back stop fastening bit architecture towards the side on spacing inclined-plane on positioning seat, stops the movement in the corresponding direction of workpiece blank part by front-and-back stop fastening bit architecture.
At least one in described side compression part and upper compressing member is elastic pressed piece.
Workpiece blank part Quick-positioning clamp is by the following technical solutions: workpiece blank part Quick-positioning clamp, including positioning seat, positioning seat is provided with for the upper compressing member from workpiece blank part top workpiece pressing blank, upper compressing member is provided with for the spacing inclined-plane that coordinates, inclined-plane, location with workpiece blank part top, positioning seat is provided with at the side towards described spacing inclined-plane for stop workpiece blank part move in the corresponding direction before and after block location structure.
Described positioning seat is provided with gathering sill, and upper compressing member includes being assemblied in gathering sill and guiding, by gathering sill, the briquetting coordinated up and down with positioning seat, and briquetting bottom is located on described spacing inclined-plane.
Described gathering sill forms oat tail groove structure, and briquetting is provided with the gear edge corresponding with gathering sill.
Upper compressing member also includes that the pressure driver part down being in transmission connection with briquetting, lower pressure driver part are assemblied on positioning seat.
The described driver part of pressure down is connected with briquetting anticreep.
The described driver part of pressure down is clamping screw.
Described front-and-back stop fastening bit architecture is made up of the side, corresponding side of positioning seat
At least one in described side compression part and upper compressing member is elastic pressed piece.
nullOwing to the upper compressing member of the workpiece blank part Quick-positioning clamp of the present invention is provided with the spacing inclined-plane for coordinating with the inclined-plane, location at workpiece blank part top，Be provided with at the side towards described spacing inclined-plane on positioning seat for stop workpiece blank part move in the corresponding direction before and after block location structure，Therefore，During using，Only need that compressing member can realize workpiece blank part is upper、Under、Before、After fixing，Before and after prevention workpiece blank part can be played simultaneously、Left and right、The effect swung up and down，The most such，When upper compressing member workpiece pressing blank，Certainly workpiece blank part just cannot move the most along the vertical direction，Meanwhile，Spacing inclined-plane coordinates with inclined-plane, location，Coordinate with the respective side (front side or rear side) of workpiece blank part plus front-and-back stop fastening bit architecture，Just workpiece blank part can be stoped to move in the longitudinal direction，Additionally，Spacing inclined-plane、Inclined-plane, location and front-and-back stop fastening bit architecture act on before and after can also stoping workpiece base jointly、Left and right、Swing up and down，As can be seen here，The workpiece blank part Quick-positioning clamp of the present invention is possible not only to improve the clamping efficiency to workpiece blank part，And the reliability to workpiece blank part clamping can be increased，Improve its assembly precision，Therefore，It is low that the workpiece blank part Quick-positioning clamp of the present invention solves clamping workpiece efficiency in the spark cutting course of processing、The problem of positioning precision difference.
Accompanying drawing explanation
Fig. 1 is the structural representation of workpiece blank part of the prior art；
Fig. 2 is the structural representation of the fixture used in the embodiment of workpiece blank part method for rapidly positioning；
Fig. 3 is the profile of the fixture used in the embodiment of workpiece blank part method for rapidly positioning；
Fig. 4 is the exploded view of the fixture used in the embodiment of workpiece blank part method for rapidly positioning.
Detailed description of the invention
The embodiment of workpiece blank part method for rapidly positioning, the method include the left and right positioning step to workpiece blank part 101 and to workpiece blank part 101 up and down before and after positioning step.
Left and right positioning step is to be pressed on a positioning seat by workpiece blank part from the left side of workpiece blank part and/or right side by corresponding side compression part.
Before and after up and down, positioning step is to be pressed on described positioning seat from the top of workpiece blank part by workpiece blank part by corresponding upper compressing member, wherein there is clamping step 1011 on workpiece blank part, the top of clamping step 1011 is provided with inclined-plane 1012, location, in the present embodiment, this inclined-plane, location 1012 is the inclined-plane tilted forward and back, and it is formed by processing groove on workpiece blank part 101.
The details of the method each step is discussed in detail below in conjunction with the fixture used in the method.
First the structure of the fixture used in the method is introduced.As in Figure 2-4, this fixture includes positioning seat, upper compressing member and side compression part to the structure of fixture.
Positioning seat includes pedestal 11, wall 12 and crossbeam 13, and wall 12 is positioned at the forward edge of pedestal 11 and arranges in 90 ° of angles with pedestal 11, and thereby ensure that between wall 12 and horizontal plane is vertical.It addition, the trailing flank of wall 12 is provided with gathering sill 121, gathering sill 121 is the gathering sill on above-below direction, and in the present embodiment, gathering sill 121 uses the groove on above-below direction and is oat tail groove structure.Crossbeam 13 is located at the top of wall 12 and is positioned at the upper port of gathering sill 121, and it is that the carrier of installing as upper compressing member exists.The leading flank of wall 12 defines and may act on block location structure before and after workpiece blank part 101, and it mainly plays the effect of block workpiece blank part 101, prevents it to be moved rearwards by.
Upper compressing member includes briquetting 14 and the pressure driver part down being in transmission connection with briquetting 14.Briquetting 14 is assemblied in the gathering sill 121 of positioning seat and is guided up and down with positioning seat by gathering sill 121 and coordinates, in order to prevent briquetting 14 from moving in the longitudinal direction, further respectively have at the left and right sides of briquetting 14 and keep off along 141, keep off and cooperatively formed dovetail groove fit structure along 141 with gathering sill 121.Additionally, as one of technical key point, the bottom of briquetting 14 is additionally provided with spacing inclined-plane, spacing inclined-plane is the inclined-plane corresponding with the locating latch face on workpiece blank part, and the meaning corresponding herein is, inclined-plane, location is all identical with the incline direction on spacing inclined-plane, gradient, when in use, therebetween can fit mutually, meanwhile, spacing inclined-plane coordinates workpiece blank part 101 can also be stoped to move forward with inclined-plane, location.Just can realize workpiece blank part 101 fixing on upper and lower fore-and-aft direction it follows that spacing inclined-plane, inclined-plane, location and front-and-back stop fastening bit architecture three work in coordination.In the present embodiment, lower pressure driver part specifically uses down pressure screw rod 15, the lower end of lower pressure screw rod 15 is provided with anticreep and connects sheet 151, briquetting 14 top is provided with and connects, with anticreep, the anticreep draw-in groove 142 that sheet is corresponding, anticreep connects sheet 151 and snaps in anticreep draw-in groove 142 and can rotation wherein, thus pressure screw rod 15 down can be stoped to depart from briquetting 14, in the present embodiment, lower pressure screw rod 15 is that Screw assembly is on the crossbeam 13 of positioning seat.
In the present embodiment, side compression part uses side pressure screw rod 16, in the present embodiment, side pressure screw rod 16 Screw assembly is on the right side of the wall 12 of positioning seat, it is positioned at the right side of gathering sill, its the inner stretches in gathering sill, can realize workpiece blank part 101 in the lateral direction fixing by screwing side pressure screw rod 16.
Fixture, after assembling, carries out grinding to plane A being made up of pedestal, wall, crossbeam on the basis of the bottom surface of the pedestal of positioning seat, makes three be in same plane A(i.e. front-and-back stop fastening bit architecture together).When the positioning step of workpiece blank part loads the opening on wall, inclined-plane, location by spacing inclined-plane workpiece pressing blank, on the one hand this operation can limit the vertical direction of workpiece blank part and move and around transverse axis, the rotation three degree of freedom of the longitudinal axis, another side produces the cross force making workpiece blank part be close to plane A, rely on the restriction effect of plane A, make workpiece blank part in the movement of laterally (fore-and-aft direction), two degree of freedom of rotation around vertical direction eliminate, only this operation limits five degree of freedom of workpiece, pressuring action plus side pressure screw rod, limit the six-freedom degree of workpiece, achieve and position completely.
Result of the test shows, this localization method is simple to operate, easy to use, it is achieved that workpiece quick, be accurately positioned.During conventional replacing workpiece, the time of operation cost more than the 5min such as the clamping of workpiece, correction, molybdenum wire verticality adjustment, using the method, after being adjusted by molybdenum filament, without adjusting its perpendicularity again during replacing workpiece, the replacing work piece operations time only needs 10-20s；Workpiece (size of cut direction is within the 100mm) dimensional accuracy simultaneously utilizing this localization method to cut out can control within 10 μm, and repetitive positioning accuracy is higher, reduces percent defective, improves production efficiency.
In the other embodiments of workpiece blank part method for rapidly positioning, lower pressure screw rod and side pressure screw rod can also change elastic pressure bar into, and thrust when batch workpiece so can be made to produce resetting reaches unanimity, and improves the service life of fixture simultaneously.
The embodiment of workpiece blank part Quick-positioning clamp, as in Figure 2-4, it is identical with the structure of the fixture used in workpiece blank part method for rapidly positioning, and it will not go into details herein.
In the other embodiments of workpiece blank part Quick-positioning clamp, lower pressure screw rod and side pressure screw rod can also change elastic pressure bar into, thrust when batch workpiece so can be made to produce resetting reaches unanimity, improve the service life of fixture simultaneously, additionally, lower pressure drive mechanism can also use hydraulic push rod etc., can realize the Automatic-clamping of fixture in such cases, make more convenient to operate；Certainly, at some, workpiece blank part being fixed the occasion that requirement of strength is the highest, side compression part can also omit.
Claims (10)
1. workpiece blank part method for rapidly positioning, it is characterised in that include the left and right positioning step to workpiece blank part and to workpiece blank part up and down before and after positioning step；Left and right positioning step is to be pressed on a positioning seat by workpiece blank part from the left side of workpiece blank part and/or right side by corresponding side compression part；Before and after up and down, positioning step is to be pressed on described positioning seat from the top of workpiece blank part by workpiece blank part by corresponding upper compressing member, wherein there is clamping step on workpiece blank part, the top of clamping step is provided with inclined-plane, location, upper compressing member is provided with spacing inclined-plane that is corresponding with the locating latch face on clamping step and that fit in the longitudinal direction, it is provided with front-and-back stop fastening bit architecture towards the side on spacing inclined-plane on positioning seat, stops the movement in the corresponding direction of workpiece blank part by front-and-back stop fastening bit architecture.
Workpiece blank part method for rapidly positioning the most according to claim 1, it is characterised in that at least one in described side compression part and upper compressing member is elastic pressed piece.
3. for implementing the workpiece blank part Quick-positioning clamp of the method for claim 1, it is characterized in that, including positioning seat, positioning seat is provided with for the upper compressing member from workpiece blank part top workpiece pressing blank, upper compressing member is provided with for that coordinate with the inclined-plane, location at workpiece blank part top and the spacing inclined-plane fitted in the longitudinal direction, positioning seat is provided with at the side towards described spacing inclined-plane for stop workpiece blank part move in the corresponding direction before and after block location structure.
Workpiece blank part Quick-positioning clamp the most according to claim 3, it is characterized in that, described positioning seat is provided with gathering sill, and upper compressing member includes being assemblied in gathering sill and guiding, by gathering sill, the briquetting coordinated up and down with positioning seat, and briquetting bottom is located on described spacing inclined-plane.
Workpiece blank part Quick-positioning clamp the most according to claim 4, it is characterised in that described gathering sill forms oat tail groove structure, and briquetting is provided with the gear edge corresponding with gathering sill.
Workpiece blank part Quick-positioning clamp the most according to claim 4, it is characterised in that upper compressing member also includes that the pressure driver part down being in transmission connection with briquetting, lower pressure driver part are assemblied on positioning seat.
Workpiece blank part Quick-positioning clamp the most according to claim 6, it is characterised in that the described driver part of pressure down is connected with briquetting anticreep.
Workpiece blank part Quick-positioning clamp the most according to claim 6, it is characterised in that the described driver part of pressure down is clamping screw.
Workpiece blank part Quick-positioning clamp the most according to claim 4, it is characterised in that described front-and-back stop fastening bit architecture is made up of the side, corresponding side of positioning seat.
10. according to the workpiece blank part Quick-positioning clamp described in any one of claim 3-9, it is characterised in that at least one in described side compression part and upper compressing member is elastic pressed piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319263.9A CN104096937B (en) | 2014-07-07 | 2014-07-07 | Workpiece blank part method for rapidly positioning and positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319263.9A CN104096937B (en) | 2014-07-07 | 2014-07-07 | Workpiece blank part method for rapidly positioning and positioning fixture |
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| Publication Number | Publication Date |
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| CN104096937A CN104096937A (en) | 2014-10-15 |
| CN104096937B true CN104096937B (en) | 2016-12-07 |
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| CN201410319263.9A Active CN104096937B (en) | 2014-07-07 | 2014-07-07 | Workpiece blank part method for rapidly positioning and positioning fixture |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214037A (en) * | 2018-01-08 | 2018-06-29 | 歌尔股份有限公司 | Machine tool fixture |
| CN112548247A (en) * | 2020-12-18 | 2021-03-26 | 浙江工业大学 | Spark-erosion wire cutting positioning fixture |
| CN114226885B (en) * | 2021-12-30 | 2023-07-25 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Electric spark integrated machining quick-change device and method for porous communication holes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6930272B1 (en) * | 2004-07-06 | 2005-08-16 | Michael P. Limano | Vise for holding a workpiece on an EDM machine |
| DE102009011612B3 (en) * | 2009-03-04 | 2010-10-28 | F.J. Pfeffer Formenbau Gmbh | jig |
| CN202963697U (en) * | 2012-11-26 | 2013-06-05 | 无锡市航鹄科技有限公司 | Wire cutting V-shaped groove positioning fixture |
| CN203197613U (en) * | 2013-04-25 | 2013-09-18 | 苏州市职业大学 | Movable V-shaped block locating and clamping device |
| CN203592329U (en) * | 2013-11-15 | 2014-05-14 | 江苏源普自动化系统有限公司 | Boring fixture |
| CN203599913U (en) * | 2013-11-28 | 2014-05-21 | 浙江爱铂门控有限公司 | Clamp for inner-hole locating and plane milling of door closer shell |
| CN103639551A (en) * | 2013-11-29 | 2014-03-19 | 无锡市航鹄科技有限公司 | Wire cutting positioning clamp |
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