CN102513848A - Machine tool fixture - Google Patents
Machine tool fixture Download PDFInfo
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- CN102513848A CN102513848A CN2011104560386A CN201110456038A CN102513848A CN 102513848 A CN102513848 A CN 102513848A CN 2011104560386 A CN2011104560386 A CN 2011104560386A CN 201110456038 A CN201110456038 A CN 201110456038A CN 102513848 A CN102513848 A CN 102513848A
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Abstract
The invention discloses a machine tool fixture, which comprises a bottom plate (1), a clamping device (2) and a positioning plate (3), wherein the bottom plate (1) is used for supporting a workpiece, the clamping device (2) is used for fixing the workpiece, and the positioning plate (3) provides a detecting reference surface (31) for the workpiece and is arranged between the bottom plate (1) and the clamping device (2). The center of the positioning plate (3) and the center of the workpiece are arranged on the axis of a spindle of a machine tool for machining the workpiece, and the distance from the center of the positioning plate (3) to the reference surface (31) is a reference distance. By the aid of the machine tool fixture, a machining coordinate system can be provided for the workpiece, the reference surface in the same coordinate system can also be provided, and the requirements of the workpiece on machining and detecting are met. Compared with the prior art, the machine tool fixture has the advantages that the machining coordinate system and a detecting coordinate system do not need to be built respectively, so that manufacture errors caused by coordinate transformation are avoided, and workpiece machining precision and workpiece machining efficiency are greatly improved.
Description
Technical field
The present invention relates to machine-building processing and detection technique field, relate in particular to a kind of jig.
Background technology
Anchor clamps are to be used for fixing processing object in the machine-building process, make it to occupy correct position, with the device of accepting construction or detecting.Anchor clamps can be divided into weld jig, inspection jig, assembling jig, jig etc., and wherein jig is the most common.
On lathe during processing work, for the surface that makes workpiece can reach the drawing regulation size, geometry and with other surperficial specification requirements such as mutual alignment precision, must adopt jig with the workpiece location and clamp before the processing.Jig is made up of setting element, clamping device, tool setting induction element, indexing means, Connection Element and clamp body etc. usually.
For the processing and the detection of various types of high-speed overload AC traction electric motor supports, in the prior art, adopt horizontal Machining centers that support is processed usually, horizontal Machining centers adopts jig that workpiece is positioned.As shown in Figure 1, Fig. 1 is the structural representation of a kind of jig in the prior art; Below concise and to the point the defective that this jig exists at work described.
As shown in Figure 1; This jig mainly comprises base plate 1 and the hold down gag 2 of being located at base plate 1 top; In the process, at first with workpiece setting on base plate 1, utilize hold down gag 2 that the center of workpiece is overlapped with base plate 1 center; Because the center of base plate 1 overlaps setting with the centre coordinate of horizontal Machining centers; Therefore workpiece and horizontal Machining centers are set up coordinate system, are the cut that benchmark is accomplished workpiece with this coordinate system then, rely on the accuracy guarantee dimensional accuracy of products of precision of lathe own and cutter.
Yet because workpiece is located on the base plate 1, workpiece blocks the central point of base plate 1; Only overlap to be provided with the centre coordinate of horizontal Machining centers through base plate 1 and locate, therefore above-mentioned jig can not detect the accurate size at its center of end face distance, the outside of support, after therefore machining; Need support is unloaded from horizontal Machining centers, be transported to the three-dimensional coordinates measurement instrument, through the three-dimensional coordinates measurement instrument; On product, set up new coordinate system; Detect the relative dimensions of support,, need go up again lathe and do over again or reprocess if detect defectively.
Visible by above-mentioned processing, testing process, the horizontal Machining centers of prior art is the space correlation size of testing product directly, processing and the detection of having only employing horizontal Machining centers and three-dimensional detector to combine and could accomplish electric machine stand; Because horizontal Machining centers processing and three-dimensional detector detect the conversion that has second positioning and benchmark; Can there be certain error in testing result, and the transhipment of product between two distinct devices causes inefficiency; Labour intensity is big; And because product is bigger, easily product is caused the damage of colliding with, support is repeatedly done over again to locate and is had accumulated error etc.
In view of this; Demand urgently doing further optimal design, make workpiece, can accomplish the processing and the detection of workpiece simultaneously through a clamping of jig to the structure of the jig of prior art; Reduce the detection error of workpiece, improve machining accuracy and processing and manufacturing efficient.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of jig, and it can reduce the detection error of workpiece through a clamping of workpiece being satisfied simultaneously the needs of the processing and the detection of workpiece, improves machining accuracy and processing and manufacturing efficient.
For solving the problems of the technologies described above, the present invention provides a kind of jig, comprises base plate that is used for supporting workpiece and the hold down gag that is used for fixing said workpiece; Also being included as said workpiece provides the location-plate of detection reference face; Said location-plate is located between said base plate and the said hold down gag; The center of said location-plate, the center of said workpiece are located on the main-shaft axis of lathe of the said workpiece of processing, and the center of said location-plate is a reference range to the distance of said datum level.
Preferably, said jig is the jig that clamps the support of motor, the shape that is shaped as said support of said location-plate, and the lateral wall of said location-plate is said datum level.
Preferably, also comprise the angle positioning device that radially is provided with along said location-plate, the inner of said angle positioning device is fixed on the said location-plate, and the outer end of said angle positioning device is plugged in the groove of said base inner.
Preferably; Said angle positioning device comprises base and slide unit; Said base is fixedly connected with said location-plate, and said slide unit radially slidably is connected along said with said base, and the outer end of said slide unit is plugged in the groove of said base inner.
Preferably, said location-plate also is provided with a plurality of parts locating holes, is provided with alignment pin in each said parts locating hole, and the top of said alignment pin is plugged in said parts in the hole of relevant position.
Preferably, said location-plate is provided with first riser in the outside of said workpiece, and said first riser is connected with said workpiece through first screw assembly.
Preferably, said location-plate also is provided with second riser at the opposite side of said first riser, and said second riser is connected with said workpiece through second screw assembly.
Preferably, the center of said location-plate is provided with groove, and the center of said base plate is provided with convexity, and in the center of said location-plate and said base plate, said groove and said convexity are equipped with.
Preferably, said location-plate also is connected through the interior angle screw assembly with said base plate.
Preferably, also be provided with at least two screw rod locating holes on the said location-plate, be fitted with screw rod in the said screw rod locating hole, the top of said screw rod is connected with said hold down gag.
The present invention provides a kind of jig; It is included as the location-plate that workpiece provides the detection reference face; Location-plate is located between base plate and the hold down gag; The center of location-plate, the center of workpiece are located on the main-shaft axis of lathe of processing work, and the center of location-plate is a reference range to the distance of datum level.
Adopt this structure, in the processing and testing process of workpiece, at first with workpiece setting on location-plate; Through hold down gag workpiece is located, clamped; Because the center of the center of location-plate, workpiece is located on the main-shaft axis of lathe of processing work, makes location-plate, workpiece and lathe three be in the same coordinate system, lathe with this coordinate system be benchmark to the workpiece Milling Process after; Again because the center of location-plate is a reference range to the distance of datum level; Can be through the distance of measuring workpieces outside end face to datum level, calculate workpiece outboard end identity distance excentric accurate size apart from end face outside the reference range at location-plate center, the workpiece to the distance of datum level according to datum level then; If the error of this size is in the error allowed band, then this workpiece is qualified products; If the error of this size outside the error allowed band, then continues to use lathe that workpiece is further processed, up to qualified products.
Can find out by the above-mentioned course of work, adopt the jig of said structure, not only can machining coordinate system be provided for workpiece; Datum level under the same coordinate system can also be provided; Satisfy the needs of the processing and the detection of workpiece simultaneously, compare prior art, need not to set up respectively machining coordinate system and detection coordinates system; Thereby avoided because the foozle that Coordinate Conversion is brought, improved machining accuracy and the processing and manufacturing efficient of workpiece greatly.
Description of drawings
Fig. 1 is the structural representation of a kind of jig in the prior art;
Fig. 2 is the front view of a kind of specific embodiment of jig provided by the present invention;
Fig. 3 is the vertical view of Fig. 2.
Wherein, Reference numeral among Fig. 1 to Fig. 3 and the corresponding relation between the component names are:
Base plate 1; Hold down gag 2; Location-plate 3;
First riser 35; Second riser 36; First screw assembly 37; Second screw assembly 38; Screw rod locating hole 39.
The specific embodiment
Core of the present invention is for providing a kind of jig, and this jig can be realized location, the clamping to workpiece, and the needs that can satisfy workpiece processing and detect, and reduces the detection error of workpiece, improves machining accuracy and processing and manufacturing efficient.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the front view of a kind of specific embodiment of jig provided by the present invention; Fig. 3 is the vertical view of Fig. 2.
In a kind of specific embodiment; As shown in Figures 2 and 3, the present invention provides a kind of jig, and this jig comprises base plate 1, location-plate 3 and hold down gag 2; Base plate 1 is used for supporting workpiece; Hold down gag 2 is used for fixing workpiece, and location-plate 3 is located between base plate 1 and the hold down gag 2, and location-plate 3 provides detection reference face 31 for workpiece; The center of location-plate 3, the center of workpiece are located on the main-shaft axis of lathe of processing work, and the center of location-plate 3 is a reference range to the distance of datum level 31.
Adopt this structure, in the processing and testing process of workpiece, at first with workpiece setting on location-plate 3; Through hold down gag 2 workpiece is located, clamped; Because the center of the center of location-plate 3, workpiece is located on the main-shaft axis of lathe of processing work, makes location-plate 3, workpiece and lathe three be in the same coordinate system, lathe with this coordinate system be benchmark to the workpiece Milling Process after; Again because the center of location-plate 3 is a reference range to the distance of datum level 31; Can be through the distance of measuring workpieces outside end face to datum level 31, calculate workpiece outboard end identity distance excentric accurate size apart from end face outside the reference range at location-plate 3 centers, the workpiece to the distance of datum level 31 according to datum level 31 then; If the error of this size is in the error allowed band, then this workpiece is qualified products; If the error of this size outside the error allowed band, then continues to use lathe that workpiece is further processed, up to qualified products.
Can find out by the above-mentioned course of work, adopt the jig of said structure, not only can machining coordinate system be provided for workpiece; Datum level 31 under the same coordinate system can also be provided; Satisfy the needs of the processing and the detection of workpiece simultaneously, compare prior art, need not to set up respectively machining coordinate system and detection coordinates system; Thereby avoided because the foozle that Coordinate Conversion is brought, improved machining accuracy and the processing and manufacturing efficient of workpiece greatly.
Need to prove; What the above-mentioned specific embodiment did not limit jig specifically clamps object; Do not limit the concrete shape of location-plate 3 yet; In fact, every location-plate 3 that datum level 31 is provided that comprises, assurance workpiece all should be worked as at the jig of same position processing and measurement and belonged to protection scope of the present invention.
The concrete shape of above-mentioned location-plate 3 can also further be set.
In concrete scheme, as shown in Figures 2 and 3, above-mentioned jig is the jig that clamps the support of motor, the shape that is shaped as support of location-plate 3, and the lateral wall of location-plate 3 is a datum level 31.
Adopt this version; Because the shape of anchor clamps is identical with the support shape of motor; Make that the lateral wall profile of lateral wall profile and support of location-plate 3 is identical substantially, promptly the lateral wall as the location-plate 3 of datum level 31 is close and parallel with the distance of the lateral wall of support, and this greatly facilitates the measurement of the lateral wall of support to the distance of datum level 31; Further reduce to produce the possibility of error, improved the machining accuracy of support.
Particularly, above-mentioned jig can specifically be provided with first datum level in two seize sides of location-plate 3, and the distance of the setting location-plate center and first datum level is the first reference range a; In the suspension side second datum level is set, and the distance of the setting location-plate center and second datum level is b.Through the seize side of detection support and the distance of first datum level 31, or the distance of the suspension side of support and second datum level, can be through simply calculating the accurate dimension of support.Certainly, the datum level 31 of above-mentioned location-plate 3 only for being located at above-mentioned two positions, can also be located at other position.
Be example with the JD160 electric machine stand below, after above-mentioned jig is adopted in concrete introduction, the technological process of support.
According to the product specification handbook; The seize face of JD160 electric machine stand is
to the distance of motor center; As shown in Figure 3; First datum level that can location-plate 3 is set to 554 ± 0.02 to the reference range a at center, after lathe is accomplished the processing to electric machine stand, can adopt the distance of tool detection support such as micrometric depth gauge to first datum level; Suppose that this distance is 1.04; The outer face that can calculate support so is 554.01+1.04=555.05 to the distance at center, and the support size of this moment is satisfactory, that is to say this product processed qualified.If the product size that calculates is defective, then reuses lathe to its further processing, and then detect, reprocess, until qualified products.
Can find out for example by above-mentioned, adopt above-mentioned jig after, the support processing process is: the detection-adjustment lathe parameter of clamping workpiece-lathe Milling Process-located in connection size, lathe is the detection affirmation-blanking of Milling Process-location dimension once more.Compare prior art, this technological process is simplified greatly.
The connected mode of above-mentioned location-plate 3 and workpiece can also further be set.
In the another kind of specific embodiment; Above-mentioned jig can also comprise the angle positioning device 32 that radially is provided with along location-plate 3; The inner of angle positioning device 32 is fixed on the location-plate 3, and the outer end of angle positioning device 32 is plugged in the groove of base inner.
In the concrete scheme, above-mentioned angle positioning device 32 comprises base and slide unit, and base is fixedly connected with location-plate 3, and slide unit radially slidably is connected with base, and the outer end of slide unit is plugged in the groove of base inner.
Like this, electric machine stand is positioned over after the location-plate 3, can slide unit be radially outwards slided; The outer end of slide unit is plugged in the groove of base inner; Play the effect of location, make support can not guarantee the job stability of jig around its axis rotation on location-plate 3.Certainly, above-mentioned angle positioning device 32 is not limited in the said structure form, can also be other structures, and the every angle positioning device 32 that can avoid workpiece to rotate around axis all should be worked as and belonged in protection scope of the present invention.
On the basis of angle positioning device 32, the outside of above-mentioned location-plate 3 can also be provided with first riser, 35, the first location-plates 3 and be connected with workpiece through first screw assembly 37.
Adopt this structure; Make that the position of workpiece and location-plate 3 is further fixing; Even cause more greatly in the torque that workpiece receives under the situation of angle positioning device 32 inefficacies, workpiece can not rotate on location-plate 3 yet, further the locating effect of enhanced positioning plate 3.
With above-mentioned first riser 35 accordingly, above-mentioned location-plate 3 also is provided with second riser, 36, the second risers 36 at the opposite side of first riser 35 and is connected with workpiece through second screw assembly 38.
Like this; In the both sides of location-plate 3 two risers being set respectively is connected with workpiece; Guarantee workpiece no matter in the counterclockwise direction still clockwise direction all can not relatively rotate, the locating effect of enhanced positioning plate 3 further, thus guarantee the machining accuracy of jig.
In the another kind of specific embodiment, as shown in Figure 3, above-mentioned location-plate 3 can also be provided with a plurality of parts locating holes 33, is provided with alignment pin in each parts locating hole 33, and the top of alignment pin is plugged in parts in the hole of relevant position.
Adopt the hole axle to cooperate, can the position of support and location-plate 3 is further fixing, make support in the process of processing and detection, can not rotate, further guarantee the machining accuracy and the accuracy of detection of jig.
What specify is; " axis " among this paper refers to perpendicular to location-plate; And pass the axis of location-plate cross-section center, the noun of locality among this paper " outward " refers on the cross section of location-plate, by the direction of center to external diffusion; The noun of locality " interior " refers on the face of the rank street of location-plate, points to the direction at center; The appearance that should be appreciated that these nouns of locality should not influence protection scope of the present invention.
The connected mode of above-mentioned base plate 1 and location-plate 3 can also further be set.
In the another kind of specific embodiment, as shown in Figure 2, the center of location-plate 3 is provided with groove, and the center of base plate 1 is provided with convexity, and in the center of location-plate 3 and base plate 1, groove and convexity are equipped with.
Through the mode of protruding and groove fit, realized the location of base plate 1 simply and easily with location-plate 3, guaranteed the two coaxial setting, further improve the machining accuracy of jig.Certainly, the base plate 1 of jig provided by the invention can also be realized coaxial setting through other modes with location-plate 3.
In addition, above-mentioned location-plate 3 also is connected through interior angle screw assembly 34 with base plate 1.Adopt the interior angle screw to connect the fixed connection that can realize the two simply, easily, and the interior angle screw is embedded in location-plate 3 inside, can also plays the effect of saving the space, guarantee that location-plate 3 and base plate 1 closely cooperate.
In the another kind of specific embodiment, also be provided with at least two screw rod locating holes 39 on the above-mentioned location-plate 3, be fitted with screw rod 21 in the screw rod locating hole 39, the top of screw rod 21 is connected with hold down gag 2.
Through this structure, can realize being connected of location-plate 3 and hold down gag 2, and adopt at least two screw rods 21 to position, can prevent that hold down gag 2 from rotating around axis, guarantees the stationarity of the relative position of hold down gag 2 and location-plate 3.Particularly, above-mentioned location-plate 3 can be connected with hold down gag 2 through three screw rods 21, certainly, can also adopt screw rod 21 connected positioning plates 3 and hold down gag 2 of other numbers.Because the structure of hold down gag 2 is identical with prior art, repeats no more at this.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
More than a kind of jig provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a jig comprises base plate (1) that is used for supporting workpiece and the hold down gag (2) that is used for fixing said workpiece; It is characterized in that; Also being included as said workpiece provides the location-plate of detection reference face (31) (3); Said location-plate (3) is located between said base plate (1) and the said hold down gag (2); The center of said location-plate (3), the center of said workpiece are located on the main-shaft axis of lathe of the said workpiece of processing, and the center of said location-plate (3) is a reference range to the distance of said datum level (31).
2. jig according to claim 1 is characterized in that, said jig is the jig that clamps the support of motor, the shape that is shaped as said support of said location-plate (3), and the lateral wall of said location-plate (3) is said datum level (31).
3. jig according to claim 2; It is characterized in that; Also comprise the angle positioning device (32) that radially is provided with along said location-plate (3); The inner of said angle positioning device (32) is fixed on the said location-plate (3), and the outer end of said angle positioning device (32) is plugged in the groove of said base inner.
4. jig according to claim 3; It is characterized in that; Said angle positioning device (32) comprises base and slide unit; Said base is fixedly connected with said location-plate (3), and said slide unit radially slidably is connected along said with said base, and the outer end of said slide unit is plugged in the groove of said base inner.
5. jig according to claim 3; It is characterized in that; Said location-plate (3) also is provided with a plurality of parts locating holes (33), is provided with alignment pin in each said parts locating hole (33), and the top of said alignment pin is plugged in said parts in the hole of relevant position.
6. jig according to claim 3 is characterized in that, said location-plate (3) is provided with first riser (35) in the outside of said workpiece, and said first riser (35) is connected with said workpiece through first screw assembly (37).
7. jig according to claim 6 is characterized in that, said location-plate (3) also is provided with second riser (36) at the opposite side of said first riser (35), and said second riser (36) is connected with said workpiece through second screw assembly (38).
8. according to each described jig of claim 1-7; It is characterized in that the center of said location-plate (3) is provided with groove, the center of said base plate (1) is provided with convexity; In the center of said location-plate (3) and said base plate (1), said groove and said convexity are equipped with.
9. jig according to claim 8 is characterized in that, said location-plate (3) also is connected through interior angle screw assembly (34) with said base plate (1).
10. according to each described jig of claim 1-7; It is characterized in that; Also be provided with at least two screw rod locating holes (39) on the said location-plate (3), be fitted with screw rod (21) in the said screw rod locating hole (39), the top of said screw rod (21) is connected with said hold down gag (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456038.6A CN102513848B (en) | 2011-12-30 | 2011-12-30 | Machine tool fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456038.6A CN102513848B (en) | 2011-12-30 | 2011-12-30 | Machine tool fixture |
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| Publication Number | Publication Date |
|---|---|
| CN102513848A true CN102513848A (en) | 2012-06-27 |
| CN102513848B CN102513848B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110456038.6A Active CN102513848B (en) | 2011-12-30 | 2011-12-30 | Machine tool fixture |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102744619A (en) * | 2012-07-10 | 2012-10-24 | 苏州工业园区艺达精密机械有限公司 | Automatic drilling milling clamp |
| CN104259914A (en) * | 2014-08-13 | 2015-01-07 | 南车株洲电机有限公司 | Positioning device used on machining of mounting holes of motor sensor |
| CN110052859A (en) * | 2019-05-10 | 2019-07-26 | 海宁弘德机械有限公司 | A kind of compressor housing tooling |
| CN112605685A (en) * | 2020-12-24 | 2021-04-06 | 科德数控股份有限公司 | Slip table frock clamp |
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| CN102744619A (en) * | 2012-07-10 | 2012-10-24 | 苏州工业园区艺达精密机械有限公司 | Automatic drilling milling clamp |
| CN104259914A (en) * | 2014-08-13 | 2015-01-07 | 南车株洲电机有限公司 | Positioning device used on machining of mounting holes of motor sensor |
| CN110052859A (en) * | 2019-05-10 | 2019-07-26 | 海宁弘德机械有限公司 | A kind of compressor housing tooling |
| CN112605685A (en) * | 2020-12-24 | 2021-04-06 | 科德数控股份有限公司 | Slip table frock clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102513848B (en) | 2014-05-07 |
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