CN103386619A - Rotation surface precision machining clamp with adjustable off-axis quantity - Google Patents
Rotation surface precision machining clamp with adjustable off-axis quantity Download PDFInfo
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- CN103386619A CN103386619A CN2013102976663A CN201310297666A CN103386619A CN 103386619 A CN103386619 A CN 103386619A CN 2013102976663 A CN2013102976663 A CN 2013102976663A CN 201310297666 A CN201310297666 A CN 201310297666A CN 103386619 A CN103386619 A CN 103386619A
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Abstract
The invention discloses a rotation surface precision machining clamp with adjustable off-axis quantity. A guide groove on a V-shaped block can slide along a guide rail on a clamp bottom plate, a T-shaped sliding block is movably connected with a T-shaped groove on the clamp bottom plate, a locating pin is detachably connected in the T-shaped sliding block, a cylindrical workpiece is detachably connected with the T-shaped sliding block through the locating pin so that the location of the cylindrical workpiece on the clamp bottom plate is realized, and the fixing of the V-shaped sliding block and the clamp bottom plate can be realized in a way that the V-shaped sliding block is in threaded connection with corresponding threaded holes in equidistant threaded hole arrays at two sides of the clamp bottom plate. The rotation surface precision machining clamp provided by the invention is suitable for cylindrical workpieces in different sizes, different shapes and different off-axis quantities, the processing problem of a workpiece in larger off-axis quantity can be solved, the universality is better, the processing space is expanded, multiple workpieces can be clamped at the same time, and the processing efficiency is increased.
Description
Technical field
The invention belongs to the jig technical field, be specifically related to a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount.
Background technology
Often process the cylindricality workpiece in NC Machining Process, the cylindricality blank need to be passed through specific fixture clamping on lathe.By consulting existing fixture patent, discovery is in existing machine tool fixture, fixture to the cylindricality clamping workpiece can only be regulated for the different-diameter of workpiece usually, and workpiece is clamped in the center of main shaft usually, the off-axis position of workpiece can not be random adjustment, to diameter, from the axle amount both all adjustable cylindricality workpiece there is no applicability; In addition, in Modern NC Machine Tool the use of circular vacuum cup more and more general, but its size is limited, and the processing from the larger workpiece of axle amount is just had certain limitation, this just requires to expand with specific fixture the processing space of lathe.Therefore, design is a kind of can realize that the cylindricality diameter of work is adjustable and can realize that again workpiece is just particularly important from the adjustable fixture of axle amount.
Summary of the invention
The purpose of this invention is to provide a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, fixture all can be adjusted different-diameter size, difformity, the different workpiece of cylindricality from the axle amount, realization has clamping and the manufacturing of the workpiece of different processing requests, further improve the versatility of fixture, expand the processing space of Digit Control Machine Tool in Precision Machining.
By reference to the accompanying drawings, the present invention adopts following technical scheme to realize:
A kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, it comprises that clamp base, pinching screw I 1, pinching screw II 4, V-block I 5, cylindricality workpiece I 6, V-block II 7, V-block III 10, cylindricality workpiece II 11, V-block IV 12, pinching screw III 16, pinching screw IV 18, pinching screw V 21, pinching screw VI 23, pinching screw VII 25, pinching screw VIII 27, alignment pin I 28, T-shaped slide block I 29, T-shaped slide block II 30 and alignment pin II 31 form; Wherein clamp base comprises clamp bottom board 9, clamp bottom board 9 is provided with locating hole 32, guiding rail 33, T-shaped groove 34, constant worm pich hole array 35, absorption disk 36, wherein V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 bottoms are equipped with the gathering sill that can slide along the guiding rail 33 at clamp bottom board top, and V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 are all by the gathering sill of bottom and the guiding rail 33 at clamp bottom board 9 tops are flexibly connected separately; T-shaped slide block I 29 and T-shaped slide block II 30 are flexibly connected with the T-shaped groove 34 of clamp bottom board 9 both sides respectively; Alignment pin I 28 removably connects with the locating hole on T-shaped slide block I 29, and alignment pin II 31 removably connects with the locating hole on T-shaped slide block II 30; Cylindricality workpiece I 6 and cylindricality workpiece II 11 locating hole by its bottom and alignment pin II 31 and alignment pin I 28 respectively removably connect, and the position of adjusting T-shaped slide block I 29 and T-shaped slide block II 30 is the position of capable of regulating cylindricality workpiece I 6 and cylindricality workpiece II 11 just; V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 respectively with clamp bottom board 9 on constant worm pich hole array 35 in corresponding screwed hole be threaded, V-block I 5 is used for clamping cylindricality workpiece I 6 with V-block II 7, and V-block III 10 is used for clamping cylindricality workpiece II 11 with V-block IV 12.
A kind ofly from the adjustable surface of revolution Precision Machining fixture of axle amount, adjust respectively V-block I 5, V-block II 7 and V-block III 10, the position of V-block IV 12 on clamp bottom board 9 according to provided by the invention, make workpiece accurately be fixed on the position of processing request; Four V-blocks fixedly by pinching screw, realizing on clamp bottom board 9.V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 both sides are equipped with groove, groove is designed to: when any one in V-block I 5, V-block II 7, V-block III 10, V-block IV 12 moves to any position, have one or two screwed hole by the round rectangle groove, not blocked fully in the constant worm pich hole array of clamp bottom board 9 sides.
According to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, the groove of V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 both sides can be the round rectangle groove.
according to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, in the use pinching screw is threaded the process that clamps, the rocking in groove for fear of pinching screw, can between the groove of each pinching screw and corresponding V-block, pad be set, make each pinching screw by pad and V-block, clamp bottom board 9 carries out fastening, be that V-block I 5 can be passed through respectively the pinching screw II 4 of both sides, pinching screw V 21 and corresponding pad I 3, on pad V 20 and clamp bottom board 9 in equidistant screwed hole array 35 corresponding screwed hole be threaded obtain fastening, V-block II 7 is by pinching screw I 1, pinching screw VI 23 and corresponding pad IV 19, pad VI 22 be threaded with clamp bottom board 9 obtain fastening, V-block III 10 is by pinching screw IV 18, pinching screw VII 25 and corresponding pad III 17, pad VII 24 be threaded with clamp bottom board 9 obtain fastening, V-block IV 12 is by pinching screw III 16, pinching screw VIII 27 and corresponding pad II 15, pad VIII 26 be threaded with clamp bottom board 9 obtain fastening, thereby the raising V-block clamps and fixing effect, and then realizes the accurate clamping of cylindricality workpiece I 6 and cylindricality workpiece II 11 and fix.
According to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, the pad that arranges between the groove of each pinching screw and corresponding V-block is rubber sheet gasket or spring shim.
According to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, also comprise bolt I 2, bolt II 8, bolt III 13 and bolt IV 14, V-block I 5 and V-block II 7 are threaded by bolt I 2 and bolt II 8, V-block III 10 and V-block IV 12 are threaded by bolt III 13 and bolt IV 14, be hex nut in the middle of bolt I 2, bolt II 8, bolt III 13 and bolt IV 14, both sides are the opposite standard thread of direction of rotation.Twist simultaneously bolt I 2 and two middle hex nuts of bolt II 8, can synchronously adjust the distance between V-block I 5 and V-block II 7; If twisting of two nuts is not synchronous, V-block I 5 and V-block II 7 will be stuck and can not move, and accurately the position of V-block can self-locking behind location can to guarantee workpiece by this design, has further improved machining accuracy; Equally, distance between V-block III 10 and V-block IV 12 also can be passed through bolt III 13 and bolt IV 14 adjusted in concert, cylindricality workpiece I 6 and cylindricality workpiece II 11 are clamped, can also meet fixture and can adjust for the cylindricality workpiece of different-diameter size the demand of clamping.
According to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, also be provided with on clamp bottom board 9 and measure boost line 37 and baseline 38, measuring boost line 37 parallels with the direction of guiding rail 33, it is perpendicular with measurement boost line 37 that baseline 38 passes the clamp base central point, the distance of the center of locating hole on T-shaped slide block I 29 and T-shaped slide block II 30 to baseline 38 can be accurately measured by measuring boost line 37, the accurate location of workpiece at different off-axis positions can be further realized.
According to provided by the invention a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, clamp bottom board 9 back sides are provided with the higher absorption disk 36 of flatness, the locating hole 32 at absorption disk 36 centers and the locating hole pin joint at lathe vacuum cup center, and absorption disk 36 is adsorbed on the vacuum cup of Digit Control Machine Tool, thereby fixture provided by the invention is fixed on Digit Control Machine Tool, completed the accurate clamping of workpiece, to carry out follow-up processing and manufacturing.
Compared with prior art, the invention has the advantages that:
In fixture between every group of V-block apart from capable of regulating, cylindricality workpiece that therefore can the clamping different-diameter.
2. by adjusting on T-shaped slide block the locating hole center to the distance of baseline, can make fixture can the clamping difference from the cylindricality workpiece of axle amount, solved from the processing problems of the larger workpiece of axle amount, expanded the processing space of Digit Control Machine Tool in the Precision Machining.
3. the traditional machine tool fixture usually can only workpiece of clamping, and fixture of the present invention adopts symmetric design, and the cylindricality workpiece of two same diameter of clamping has simultaneously improved the working (machining) efficiency of lathe.
By calculate rear adjustment fixture both sides workpiece from the axle amount, the workpiece that this fixture not only can two same diameter of clamping, the cylindricality workpiece of two different-diameters of clamping simultaneously also, further improved the versatility of fixture.
5.V connect by bolt thread between the type piece, and the distance between two V-blocks that are connected can pass through the rotating nut fine adjustment, the cylindricality Workpiece clamping in the middle of making is more firm, further improves precision.
Description of drawings
Fig. 1 is a kind of structural representation during from the adjustable surface of revolution Precision Machining fixture clamping cylindricality workpiece of axle amount
Fig. 2 is a kind of from the adjustable surface of revolution Precision Machining fixture of the axle amount structural representation during clamping cylindricality workpiece not
Fig. 3 is the front view in the three-view diagram of clamp bottom board
Fig. 4 is the top view in the three-view diagram of clamp bottom board
Fig. 5 is the left view in the three-view diagram of clamp bottom board
Fig. 6 is the three-view diagram of V-block
Fig. 7 is the design principle figure of V-block both sides groove
Including: 1. Clamping screw Ⅰ 2. Bolts Ⅰ 3. Gasket Ⅰ 4. Clamping screw Ⅱ 5.V-block Ⅰ 6. Cylindrical workpiece Ⅰ 7.V-block Ⅱ 8. Bolts Ⅱ 9. Fixture plate 10 . V-block Ⅲ 11. cylindrical workpiece Ⅱ 12.V-block Ⅳ 13. bolts Ⅲ 14. bolts Ⅳ 15. gasket Ⅱ 16. clamping screw Ⅲ 17. gasket Ⅲ 18. clamping screw Ⅳ 19. pad piece Ⅳ 20. gasket Ⅴ 21. clamping screw Ⅴ 22. gasket Ⅵ 23. clamping screw Ⅵ 24. gasket Ⅶ 25. clamping screw Ⅶ 26. gasket Ⅷ 27. clamping screw Ⅷ 28. locating pin Ⅰ 29.T Ⅰ 30.T Blocks Blocks Ⅱ 31. locating pin Ⅱ 32. positioning hole 33. guide rail 34.T-groove 35. equidistant threaded hole array 36. adsorption wafer 37. measuring guides 38 baseline
The specific embodiment
Further illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing.
the general structure of scheme as shown in Figure 1, it comprises clamp base, pinching screw I 1, bolt I 2, pad I 3, pinching screw II 4, V-block I 5, cylindricality workpiece I 6, V-block II 7, bolt II 8, V-block III 10, cylindricality workpiece II 11, V-block IV 12, bolt III 13, bolt IV 14, pad II 15, pinching screw III 16, pad III 17, pinching screw IV 18, pad IV 19, pad V 20, pinching screw V 21, pad VI 22, pinching screw VI 23, pad VII 24, pinching screw VII 25, pad VIII 26, pinching screw VIII 27, alignment pin I 28, T-shaped slide block I 29, T-shaped slide block II 30 and alignment pin II 31.
wherein clamp base comprises clamp bottom board 9, clamp bottom board 9 is provided with locating hole 32, guiding rail 33, T-shaped groove 34, constant worm pich hole array 35, absorption disk 36, wherein the V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 bottoms are equipped with the gathering sill that can slide along the guiding rail 33 at clamp bottom board top, V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 are all by the gathering sill of bottom and the guiding rail 33 at clamp bottom board 9 tops are flexibly connected separately, T-shaped slide block I 29 and T-shaped slide block II 30 are flexibly connected with the T-shaped groove 34 of clamp bottom board 9 locating hole 32 both sides respectively, alignment pin I 28 removably connects with the locating hole on T-shaped slide block I 29, and alignment pin II 31 removably connects with the locating hole on T-shaped slide block II 30, the locating hole that cylindricality workpiece I 6 and cylindricality workpiece II 11 go out by self bottom center place preprocessing respectively and alignment pin II 31 and alignment pin I 28 removably connect, and the position of adjusting T-shaped slide block I 29 and T-shaped slide block II 30 is the position of capable of regulating cylindricality workpiece I 6 and cylindricality workpiece II 11 just, V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 respectively with the constant worm pich hole array 35 of clamp bottom board 9 in corresponding screwed hole be threaded, V-block I 5 is used for clamping cylindricality workpiece I 6 with V-block II 7, and V-block III 10 is used for clamping cylindricality workpiece II 11 with V-block IV 12.
The distance of adjusting respectively between V-block I 5, V-block II 7 and V-block III 10, V-block IV 12 clamps the cylindricality workpiece, makes workpiece accurately be fixed on the position of processing request; Four V-blocks fixedly by pinching screw, realizing on clamp bottom board 9.All there is groove V-block I 5, V-block II 7, V-block III 10 and V-block IV 12 both sides, groove be shaped as the round rectangle groove, groove is designed to: the radius of corner of groove is identical with the screwed hole radius in constant worm pich hole array 35, fillet centre-to-centre spacing equals the spacing between adjacent two screwed holes in the array 35 of constant worm pich hole, when such design can guarantee that any one V-block moves to any position along clamp bottom board 9, can there is one or two screwed hole by the round rectangle groove, not blocked fully in the constant worm pich hole array 35 of clamp bottom board 8 sides.As shown in Figure 7, move to the position of processing request when V-block after, if every side has a screwed hole not to be blocked, V-block can be respectively on pinching screw and clamp bottom board 9 by both sides in equidistant screwed hole array 35 corresponding screw thread be threaded; If every side has two screwed holes not to be blocked, the every side of V-block can clamp with two or pinching screw.
in the use pinching screw is threaded the process that clamps, the rocking in groove for fear of pinching screw, can between the groove of each pinching screw and corresponding V-block, pad be set, as rubber sheet gasket or spring shim, each pinching screw is undertaken fastening by pad and V-block, clamp bottom board 9, thereby improve V-block, clamp and fixing effect, be that V-block I 5 can be passed through respectively the pinching screw II 4 of both sides, pinching screw V 21 and corresponding pad I 3, on pad V 20 and clamp bottom board 9 in equidistant screwed hole array 35 corresponding screwed hole be threaded obtain fastening, V-block II 7 is by pinching screw I 1, pinching screw VI 23 and corresponding pad IV 19, pad VI 22 be threaded with clamp bottom board 9 obtain fastening, V-block III 10 is by pinching screw IV 18, pinching screw VII 25 and corresponding pad III 17, pad VII 24 be threaded with clamp bottom board 9 obtain fastening, V-block IV 12 is by pinching screw III 16, pinching screw VIII 27 and corresponding pad II 15, pad VIII 26 be threaded with clamp bottom board 9 obtain fastening, and then realize the accurate clamping of cylindricality workpiece I 6 and cylindricality workpiece II 11 and fix.
V-block I 5 and V-block II 7 are threaded by bolt I 2 and bolt II 8, and V-block III 10 and V-block IV 12 are threaded by bolt III 13 and bolt IV 14; Be hex nut in the middle of bolt I 2, bolt II 8, bolt III 13 and bolt IV 14, both sides are the opposite standard thread of direction of rotation, twist simultaneously bolt I 2 and two middle hex nuts of bolt II 8, can synchronously adjust the distance between V-block I 5 and V-block II 7; If twisting of two nuts is not synchronous, V-block I 5 and V-block II 7 will be stuck and can not move, and accurately the position of V-block can self-locking behind location can to guarantee workpiece by this design, has further improved machining accuracy; Equally, distance between V-block III 10 and V-block IV 12 also can be passed through bolt III 13 and bolt IV 14 adjusted in concert, cylindricality workpiece I 6 and cylindricality workpiece II 11 are clamped, also can meet fixture and can adjust for the cylindricality workpiece of different-diameter size the demand of clamping.
Also be provided with on clamp bottom board 9 and measure boost line 37 and baseline 38, measuring boost line 37 parallels with the direction of guiding rail 33, it is perpendicular with measurement boost line 37 that baseline 38 passes the clamp base central point, the distance of the center of locating hole on T-shaped slide block I 29 and T-shaped slide block II 30 to baseline 38 can be accurately measured by measuring boost line 37, the accurate location of workpiece at different off-axis positions can be further realized.
Clamp bottom board 9 back sides are provided with the higher absorption disk 36 of flatness, the locating hole 32 at absorption disk 36 centers and the locating hole pin joint at Digit Control Machine Tool vacuum cup center, and absorption disk 36 is adsorbed on the vacuum cup of Digit Control Machine Tool, thereby fixture is fixed on Digit Control Machine Tool, completed the accurate clamping of workpiece, to carry out follow-up processing and manufacturing.
In the production and processing of reality, fixture provided by the invention by actual processing and manufacturing out, and has been used for the digital control processing experiment of corresponding cylindricality workpiece.Production and processing by reality can find out, fixture provided by the invention can be applicable to the processing of different-diameter, the different workpiece of cylindricality from the axle amount, has higher versatility and practicality.
Claims (8)
1. one kind from the adjustable surface of revolution Precision Machining fixture of axle amount, it is characterized in that, comprise clamp base, pinching screw I (1), pinching screw II (4), V-block I (5), cylindricality workpiece I (6), V-block II (7), V-block III (10), cylindricality workpiece II (11), V-block IV (12), pinching screw III (16), pinching screw IV (18), pinching screw V (21), pinching screw VI (23), pinching screw VII (25), pinching screw VIII (27), alignment pin I (28), T-shaped slide block I (29), T-shaped slide block II (30) and alignment pin II (31), described clamp base comprises clamp bottom board (9), clamp bottom board (9) is provided with locating hole (32), guiding rail (33), T-shaped groove (34), constant worm pich hole array (35), absorption disk (36), and described V-block I (5), V-block II (7), V-block III (10) and V-block IV (12) bottom are equipped with the gathering sill that can slide along the guiding rail (33) at described clamp bottom board top, described T-shaped slide block I (29) and T-shaped slide block II (30) are flexibly connected with the T-shaped groove (34) of clamp bottom board (9) both sides respectively, described alignment pin I (28) removably connects with the hole above T-shaped slide block I (29), and alignment pin II (31) removably connects with the hole above T-shaped slide block II (30), described cylindricality workpiece I (6) and cylindricality workpiece II (11) locating hole by its bottom and alignment pin I (28) and alignment pin II (31) respectively removably connect, described V-block I (5), V-block II (7), V-block III (10) and V-block IV (12) are respectively by pinching screw I (1), pinching screw II (4), pinching screw III (16), pinching screw IV (18), pinching screw V (21), pinching screw VI (23), pinching screw VII (25), screwed hole corresponding in constant worm pich hole array on pinching screw VIII (27) and clamp bottom board (9) is threaded, described V-block I (5) is used for clamping cylindricality workpiece I (6) with V-block II (7), V-block III (10) is used for clamping cylindricality workpiece II (11) with V-block IV (12).
2. as claimed in claim 1 a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, it is characterized in that, the both sides of described V-block I (5), V-block II (7), V-block III (10) and V-block IV (12) are equipped with groove, described groove is designed to have one or two screwed hole by groove, not blocked fully in the constant worm pich hole array (35) on described clamp bottom board (9) when any one in V-block I (5), V-block II (7), V-block III (10), V-block IV (12) moves to arbitrary position.
3. as claimed in claim 2 a kind ofly from the adjustable surface of revolution Precision Machining fixture of axle amount, it is characterized in that, described groove is the round rectangle groove.
4. as claimed in claim 2 a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, it is characterized in that, be respectively equipped with pad I, V, IV, VI, III, VII, II, VIII (3,20,19,22,17,24,15,26) between the groove of described each pinching screw II, V, I, VI, IV, VII, III, VIII (4,21,1,23,18,25,16,27) and corresponding V-block I, II, III, IV (5,7,10,12).
5. as claimed in claim 4 a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount, it is characterized in that, described pad I, II, III, IV, V, VI, VII, VIII (3,15,17,19,20,22,24,26) are rubber sheet gasket or spring shim.
6. as arbitrary described a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount in claim 1 to 5, it is characterized in that, also comprise bolt I (2), bolt II (8), bolt III (13) and bolt IV (14), described V-block I (5) and V-block II (7) are threaded by bolt I (2) and bolt II (8), and described V-block III (10) and V-block IV (12) are threaded by bolt III (13) and bolt IV (14); The centre of described bolt I (2), bolt II (8), bolt III (13) and bolt IV (14) is hex nut and both sides are the opposite screw thread of rotation direction.
7. as arbitrary described a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount in claim 1 to 5, it is characterized in that, also be provided with on described clamp bottom board (9) and measure boost line (37) and baseline (38), described measurement boost line (37) parallels with the direction of described guiding rail (33), and it is perpendicular with measurement boost line (37) that described baseline (38) passes described clamp base central point.
8. as arbitrary described a kind of from the adjustable surface of revolution Precision Machining fixture of axle amount in claim 1 to 5, described clamp bottom board (9) back side is provided with absorption disk (36), described absorption disk (36) center is provided with locating hole (32), and fixture is by adsorbing disk (36) and locating hole (32) absorption and pin joint on the vacuum cup of lathe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310297666.3A CN103386619B (en) | 2013-07-16 | 2013-07-16 | Rotation surface precision machining clamp with adjustable off-axis quantity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297666.3A CN103386619B (en) | 2013-07-16 | 2013-07-16 | Rotation surface precision machining clamp with adjustable off-axis quantity |
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| CN103386619A true CN103386619A (en) | 2013-11-13 |
| CN103386619B CN103386619B (en) | 2015-07-08 |
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