CN201618976U - Positioning fixture - Google Patents
Positioning fixture Download PDFInfo
- Publication number
- CN201618976U CN201618976U CN2009202456259U CN200920245625U CN201618976U CN 201618976 U CN201618976 U CN 201618976U CN 2009202456259 U CN2009202456259 U CN 2009202456259U CN 200920245625 U CN200920245625 U CN 200920245625U CN 201618976 U CN201618976 U CN 201618976U
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- hole
- lifting body
- guide pillar
- endoporus
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
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- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The utility model relates to a positioning fixture which comprises a fixture body (1), a drill bushing frame (3), a positioning drill bushing (4) and a lifting device (5); a material return pipe (26) is positioned in a clamp pipe (23) which is positioned in a lifting body (9); an outer conical surface of the clamp pipe (23) is matched with an inner taper hole of the lifting body (9); one end of the clamp pipe (23) is sheathed with a clamp pipe spring (34); one end of a lifting guide pillar (29) is sheathed on the lifting body (9); the lifting body (9) and the lifting guide pillar (29) are arranged in the fixture body (1) together; a camshaft (10) provided with an eccentric cam (14) is positioned in an inner hole at one end of the fixture body (1); the drill bushing frame (3) is installed on the fixture body (1); and a clamp pipe nut (24) is sheathed at one end of the lifting body (9). The positioning fixture simplifies the adjustment for a technique system before processing, effectively shortens the preparation time, improves the processing accuracy of parts, greatly increases one-time delivery-check qualified rate and the processing efficiency, and reduces the manufacturing cost.
Description
Technical field
The present invention relates to the frock clamp of field of machining, specifically is a kind of positioning fixture.
Background technology
When the end face of part need be processed a blind hole, the design basis of well-known processing was the end face in aperture.When on drilling machine, adding man-hour by drill jig, because the clamp mechanism of anchor clamps does not possess elevating function, the actual processing location of (see figure 1) datum level be with anchor clamps in the supporting surface of certain part part lower surface of fitting, cause design basis not overlap with processing location benchmark, make the degree of depth in processed hole wayward, delivery-check qualified rate is not high, overhaul that part is many, yields is low, strengthened manufacturing cost.
Summary of the invention
In order to overcome the deficiency that a delivery-check qualified rate is lower, manufacturing cost is high after the processing that exists in the prior art, the present invention proposes a kind of positioning fixture.
The present invention includes clamp body, drill bushing frame, location drill bushing and lowering or hoisting gear.
Material returned bar is arranged in clamp.Clamp is arranged in lifting body, and the male cone (strobilus masculinus) of clamp is matched with the internal taper hole of lifting body; End at clamp is set with the clamp spring.Promote on the cylindrical that a section of guide pillar is sleeved on lifting body one end; Lifting body and promote guide pillar and pack in the lump in the clamp body, and make the smaller diameter end that promotes guide pillar pass through hole between the endoporus at clamp body two ends, be arranged in the endoporus of clamp body one end.Eccentric cam is installed on the camshaft; Camshaft is installed in the endoporus of clamp body one end; The two ends of rocking bar fix with handle and camshaft respectively; The drill bushing frame is installed on the clamp body; The clamp nut sleeve is contained in lifting body one end.
The hole wall middle part of clamp body one end endoporus, the lowering or hoisting gear axis hole that has a pair of coaxial Different Diameter of symmetry; Large shaft sleeve and little axle sleeve are housed respectively in two holes; The two ends of lowering or hoisting gear axle all adopt the mode of interference fits to be installed in large shaft sleeve and the little axle sleeve.Have two assembly technology holes in hole sidewall upper with lowering or hoisting gear axis hole center line angle direction at 45.The aperture of the endoporus of the clamp body other end is with the external diameter of lifting body.Connect between the endoporus at clamp body two ends, and the aperture of this through hole is with the external diameter that promotes the guide pillar axostylus axostyle.On the flange circumferential outer edge end face of clamp body, be evenly distributed with two screw slots.In outer position, ring flange upper surface, be processed with three screwed holes and two circular cone pin-and-holes respectively, by the fixing drill bushing frame of screw and taper bolt.
Clamp mechanism comprises lifting body, clamp, clamp nut, clamping lever, material returned bar, material returned spring, promotes guide pillar, holding screw, back-up ring and clamp spring.
The external peripheral surface of lifting body is stepped, and its maximum outside diameter is with clamp body minor diameter endoporus; The excircle middle part surface of ring lifting body has along the guide and limit keyway of axis direction processing; The rear surface of lifting body is processed with the V-type groove, this V-type groove with promote guide pillar upper end great circle cylinder on the position of the screw hole that has corresponding, by screwing in screw, limited promoting moving axially of the relative lifting body of guide pillar.The outside cylinder at lifting body middle part and the upper end hole matched in clearance of clamp body are used for guiding; Cylindrical outer surface at the lifting body middle part has the guide and limit keyway along axis direction, and this guide and limit keyway is corresponding with the screwed hole position of clamp body.There is screw hole the periphery upper end, middle part of lifting body.The external peripheral surface of lifting body one end has screw thread.
The endoporus of lifting body one end is a bellmouth, and the tapering of this bellmouth is 30 °; The aperture of the other end endoporus of lifting body is slightly larger than the external diameter of clamp spring, and the clamp spring is installed in this section endoporus; The aperture in lifting body endoporus stage casing is with the isometrical face of cylinder of clamp.
The outer surface upper end of clamp is the outer cone table top of expanding from inside to outside, and the angle of this outer cone table top is bigger 1 ° than the angle of the lifting body bellmouth that cooperates with it.The profile of clamp cooperates with the endoporus of lifting body.On the outer surface of clamp, be evenly equipped with three flutings that connect the clamp tube wall along the clamp axis direction; Axis direction at cylindrical upper edge, the middle part of clamp clamp has straight trough.
Promoting guide pillar one end center has the blind hole of aperture with material returned rod through-hole diameter, and the end face ring endoporus of this end has groove.At the excircle middle part that promotes the guide pillar minor diameter axis and the orthogonal perforation chip-removal hole of axis that promotes guide pillar are arranged, and this through hole connects with at the bottom of the hole that promotes the guide pillar endoporus.The outer round surface that promotes guide pillar other end end is processed with the mounting groove of stage clip backing plate.
There is through hole at the center of stage clip backing plate, and there is connecting hole at two ends.Being distributed with stage clip backing plate centre bore of symmetry connects on the hole wall of stage clip backing plate centre bore.
The limited step of camshaft one end is positioned at outside the side body of clamp body; Camshaft be arranged in the clamp body endoporus and the shaft part corresponding with promoting the guide pillar center on the mounting groove of eccentric cam is arranged, and the fixedly keyway of eccentric cam is arranged on this shaft part, by key eccentric cam is fixed on the camshaft; In eccentric cam one side cam nut is installed, is used for the axial location of eccentric cam.Camshaft nut is sleeved on the camshaft, is positioned at outside the housing of clamp body opposite side, is used to limit the radial-play of eccentric cam; Camshaft one end is a tetragonal body, is used for being connected with the cubic hole of rocking bar, and rocking bar is fixedlyed connected with camshaft with packing ring by screw.
At the end face center of drill bushing frame, have the installing hole of location drill bushing; Drill bushing frame opening end has the adpting flange limit, on this flange connecting hole is arranged.
During assembling:
The clamp mechanism parts are put into the hole of clamp body, and the gathering sill direction that makes aligns the screw position on the clamp body, the screw on the clamp body is screwed in the gathering sill of lifting body, with relatively rotating between restriction clamp mechanism parts and the clamp body.The stage clip backing plate packed into promote on the face of cylinder of guide pillar lower end step band V-shaped groove, with two screws respectively by two fabrication holes on the clamp body screw in the stage clip backing plates two screwed holes, get V-shaped groove and end to promoting guide pillar lower end step, the stage clip backing plate is fixed on the face of cylinder of lifting guide pillar lower end step band V-shaped groove.Spring guide is penetrated respectively in the symmetrical via hole and two compression spring holes of stage clip backing plate, be screwed in the screwed hole of the axis of clamp body endoporus and camshaft upper spacer at 45.
The little axle sleeve of in the little axis hole of chuck body, packing into; The large shaft sleeve of in the big axis hole of chuck body, packing into.Penetrate camshaft from the hole of large shaft sleeve, the eccentric cam and the nut that will be arranged in the chuck body larger diameter internal bore simultaneously are sleeved on the camshaft successively.Pass the little axle sleeve hole of chuck body again when camshaft after, camshaft nut is fixed on the camshaft, to move axially between restriction camshaft and the chuck body, camshaft is relatively rotated, again by the mutual rotation between flat key and fastening restriction camshaft of cam nut and the eccentric cam with move axially with respect to the large shaft sleeve and the little axle sleeve of clamp body.By the rocking bar screw. packing ring is fixed on rocking bar on the tetragonal body of camshaft one end.
By three screws on the drill bushing frame and taper bolt the drill bushing frame is fixed on the clamp body, guarantees that the drill bushing hole of drill bushing frame is coaxial with the hole of the lifting body of clamp mechanism.The spitting drill cover is packed in the drill bushing hole of drill bushing frame, and fix by screw.
The assembling process of clamp mechanism parts is that the part clamp is packed in the lifting body opening, screws in dog screw in the screwed hole on the external cylindrical surface of lifting body in the straight trough of part clamp.From the following face of lifting body, penetrate material returned bar in part clamp endoporus.Material returned spring is packed on the endoporus small column cylindrical that promotes guide pillar.Again clamp back-up ring and clamp spring are put into the cannelure that promotes guide pillar, the borehole jack that will promote guide pillar is again gone in the cylinder of lifting body band V-type groove and is fitted with the lifting body large end face, and with two holding screws screw in promote guide pillars two screwed holes in the V-type groove of lifting body, promote moving axially of guide pillar and lifting body with restriction.
During use, the clamp transmission by back-up ring under the effect of elastic resistance of clamp stage clip all the time, all the time be in and have suitable pressure state, realize the closing in of part clamp and open the function of finishing fast, material returned spring is being pressed under the state of workpiece, material returned bar is downward, be displaced to and promote on the guide pillar endoporus guide pillar and after the plane contact compression of material returned spring is put in place, after the clamp nut is rotated counterclockwise the pine folder, clamp stage clip drag discharges, back-up ring is shifted onto moved on stopping after the section contact of topping bar of face under the lifting body, part clamp oral area opens.Material returned this moment spring promotes to move on to material returned bar big round platform upper surface on the material returned bar and the back-up ring lower surface conforms to, and the part that this moment, part exposed is the state of being convenient to take out, and can conveniently take out.Because the present invention is fixed with the drill bushing frame on jig main body, and is fixed with the location drill bushing on the drill bushing frame, make the multijaw baseplane applying of the last aperture end face that is held part on the clamp mechanism and location drill bushing 4, realized overlapping of design basis and machining benchmark.The spring resistance that the present invention produces by eccentric cam, lowering or hoisting gear, stage clip, stage clip backing plate, guide post and screw, the conduction of realizable force, having realized fitting fast with the lower plane of location drill bushing fast or throwing off at axial direction in the upper surface that part is put, and guarantees the drill bit axial location by adjusting the drilling machine positioner.Drill bushing hole by anchor clamps is coaxial with part clamp hole, realize the radial reference location of part to be processed, unique adjustment only is the radially adjustment between drill bit and the location drill bushing, the adjustment of the preceding process system of processing is oversimplified, effectively shortened the time before the processing, improve the machining accuracy of part, delivery-check qualified rate and working (machining) efficiency are greatly improved, reduced manufacturing cost.
Description of drawings
Accompanying drawing 1 is the structural representation of positioning fixture;
Accompanying drawing 2 is cutaway views of positioning fixture;
Accompanying drawing 3 is side views of location;
Accompanying drawing 4 is upward views of location;
Accompanying drawing 5 is cooperation schematic diagrames of location;
Accompanying drawing 6 is shaft side figures of location;
Accompanying drawing 7 is clamp mechanism cutaway views;
Accompanying drawing 8 is side views of clamp mechanism;
Accompanying drawing 9 is cooperation schematic diagrames of clamp mechanism;
Accompanying drawing 10 is cooperation schematic diagrames of lowering or hoisting gear;
Accompanying drawing 11 is knot schematic diagrames of clamp body;
Accompanying drawing 12 is side views of clamp body;
Accompanying drawing 13 is vertical views of clamp body;
Accompanying drawing 14 is shaft side figures of drill bushing frame;
Accompanying drawing 15 is front views of lifting body;
Accompanying drawing 16 is side views of lifting body;
Accompanying drawing 17 is front views of part clamp;
Accompanying drawing 18 is cutaway views of part clamp;
Accompanying drawing 19 is vertical views of part clamp;
Accompanying drawing 20 is front views of stage clip backing plate;
Accompanying drawing 21 is front views of eccentric cam;
Accompanying drawing 22 is front views of camshaft;
Accompanying drawing 23 is camshaft keyway position cross-section cutaway views;
Accompanying drawing 24 is the front views that promote guide pillar;
Accompanying drawing 25 is to promote the guide pillar side view.Wherein:
1. clamp body 2. clamp mechanism 3. drill bushing framves 4. are located drill bushing 5. lowering or hoisting gears
6. stop screw 7. stage clips 8. stage clip backing plates 9. lifting bodies 10. camshafts
11. stage clip guide rod 12. large shaft sleeves 13. little axle sleeve 14. eccentric cams 15. cam nuts
16. camshaft nut 17. rocking bars 18. handles 19. packing rings 20. rocking bar screws
22. dog screw 23. part clamps 24. clamp nuts 25. clamping levers 26. material returned bars
27. material returned spring 28. workpiece 29. promote guide pillar 30. holding screws 31. big axis holes
32. little axis hole 33. clamp back-up rings 34. clamp springs 35. flat keys 36. drill bushing frame screws
37. taper bolt 38. drill bushing screws 39. stage clip backing plate screws
The specific embodiment
This enforcement is a kind of positioning fixture, comprises clamp body 1, clamp mechanism 2, drill bushing frame 3, location drill bushing 4 and lowering or hoisting gear 5.
Shown in Figure 11 to 13.Clamp body 1 is the thin-walled circular shell.The external peripheral surface of clamp body 1 is stepped, and the flange that connects usefulness is arranged at clamp body 1 one ends.There is endoporus at the flange one end face center of clamp body 1, and the axle and the eccentric cam 14 of lowering or hoisting gear 5 are positioned at this hole; Hole wall middle part in this hole, the lowering or hoisting gear axis hole that has a pair of coaxial Different Diameter of symmetry; Large shaft sleeve 12 and little axle sleeve 13 are housed respectively in two holes; The two ends of lowering or hoisting gear axle all adopt the mode of interference fits to be installed in axle sleeve 12 and the axle sleeve 13.Have two assembly technology holes in hole sidewall upper, to make things convenient for the loading and unloading of screw 39 with lowering or hoisting gear axis hole center line angle direction at 45.The aperture of the endoporus of clamp body 1 other end is with the external diameter of lifting body 9.Connect between the endoporus at clamp body 1 two ends, and the aperture of this through hole is with the external diameter that promotes guide pillar 29 axostylus axostyles.On the flange circumferential outer edge end face of clamp body 1, be evenly distributed with two screw slots, be used for T type screw and pack into, and clamp body 1 is fixed on the platen face by this screw.In outer position, ring flange upper surface, be processed with three screwed holes and two circular cone pin-and-holes respectively, by the fixing drill bushing frame 3 of screw 36 and taper bolt 37.
Extremely shown in Figure 9 as Fig. 7.Clamp mechanism 2 comprises lifting body 9, clamp 23, clamp nut 24, clamping lever 25, material returned bar 26, material returned spring 27, promotes guide pillar 29, holding screw 30, clamp back-up ring 33 and clamp spring 34.
Extremely shown in Figure 16 as Figure 15.Lifting body 9 is the hollow revolving body.The external peripheral surface of lifting body 9 is stepped, and its maximum outside diameter and clamp body one end have the endoporus of screw hole with the footpath; The excircle middle part surface of ring lifting body 9 has along the guide and limit keyway of axis direction processing; The rear surface of lifting body 9 is processed with the V-type groove, this V-type groove with promote guide pillar 29 upper end great circle cylinders on the position of the screw hole that has corresponding, by screwing in screw 30, limited promoting moving axially of guide pillar 29 relative lifting bodies 9.The outside cylinder at lifting body 9 middle parts and the upper end hole matched in clearance of clamp body 1 are used for guiding; Have the keyway of a two terminal circle arcuation along axis direction at the cylindrical outer surface at lifting body 9 middle parts, this keyway is corresponding with the screwed hole position of clamp body 1, by screwing in the screw 6 in the keyway, limited relatively rotating between lifting body 9 and the clamp body 1, and by the control of this keyway to lifting body ceiling about in the of 9.The periphery upper end, middle part of lifting body 9 also has a screw hole, screw 22 is screwed in clamp 23 keyways, with relatively rotating between restriction clamp 23 and the lifting body 9.The external peripheral surface of lifting body 9 one ends has screw thread.
The endoporus of lifting body 9 is a shoulder hole, and the endoporus of an end is inside closing in bellmouth, and the tapering of this bellmouth is 30 °, and its tapering and length are all with the tapering and the length of clamp 23 1 end toper outer surfaces; The other end of lifting body 9 is processed with interior annular slotted hole, and the aperture of annular slotted hole is slightly larger than the external diameter of clamp spring 34, and the interior cylinder external diameter of annular slotted hole is identical with the internal diameter of material returned spring 27, and clamp spring 34 is installed in this section endoporus; The aperture in lifting body 9 endoporus stage casings is with the isometrical face of cylinder of clamp 23.
Extremely shown in Figure 19 as Figure 17.Part clamp 23 is the hollow revolving body, is used for clamping work pieces 28, and workpiece 28 is blind hole parts.The outer surface upper end of clamp 23 is outer cone table tops of expanding from inside to outside, and the angle of this outer cone table top is bigger 1 ° than the angle of lifting body 9 bellmouths that cooperate with it.The external peripheral surface middle part of clamp 23 is the concave station terrace; The profile of clamp 23 cooperates with the endoporus of lifting body 9.On the outer surface of clamp 23, have three to connect the flutings that clamp 23 tube walls all go on foot, be used for the strain of clamp along clamp 23 axis directions, and length that should fluting from the taper surface of clamp 23 1 ends the boss terrace middle part to clamp 23 other ends.Axis direction at the boss terrace upper edge of clamp 23 clamp 23 has straight trough, is used for screw 22 and inserts 23 rotations of back restriction clamp.The endoporus of clamp 23 is a stepped hole, and aperture wherein is used to clamp part 28, and macropore is the section of stepping down that will not cooperate.
Material returned bar 26 is a thin cylinder shape, and its external diameter is less than the external diameter of clamping part, and and the clamping part between adopt matched in clearance.The aperture of material returned bar 26 endoporus is a chip-removal hole.
Shown in Figure 24 and 25.Promoting guide pillar 29 is revolving body.The external peripheral surface that promotes guide pillar 29 is step-like, and its larger diameter end has blind hole, at the end face of this end interior annular slotted hole is arranged, and the external diameter of larger diameter end is with the external diameter of lifting body 9, and the internal diameter of interior annular slotted hole is with the external diameter of lifting body 9 one ends.On the position, hole wall stage casing of annular slotted hole, the screwed hole that two perforations are arranged of symmetry; Promote the diameter of the internal diameter of guide pillar 29 larger diameter end blind holes with material returned bar 26 through holes; There is the vertical mutually chip-removal hole that connects with the blind hole base apertures of axis and the axis that promotes guide pillar 29 the blind hole bottom with the shape of drill bit drift angle at the excircle middle part that promotes guide pillar 29 minor diameters; Promoting guide pillar 29 1 ends has a small stair, and small stair diameter middle part is processed with V-shaped groove;
As shown in figure 20.Stage clip backing plate 8 is a plate.Have through hole unidimensional with the body diameter that promotes guide pillar 29 band V-shaped grooves at the center of stage clip backing plate 8, there is connecting hole at two ends, and the connecting hole aperture is slightly larger than the diameter with stage clip guide rod 11.On the hole wall of stage clip backing plate 8 centre bores, be symmetrically distributed with the screwed hole of two screws 39 that connect with stage clip backing plate 8 centre bores;
As shown in figure 22.The step-like cylinder of camshaft 10 for reducing successively from an end, there is a paragraph key groove at the middle part, groove width and flat key 35 are equal to, and stage casing and rear end have the screw thread of two sections different-diameters respectively, the stage casing diameter of thread with cam nut 15, the rear end diameter of thread with camshaft nut 16;
Shown in Figure 10,22 and 23.Camshaft 10, eccentric cam 14, cam nut 15, camshaft nut 16 and rocking bar 17, flat key 35, handle 18, packing ring 19, rocking bar screw 20.
As shown in figure 14.Drill bushing frame 3 is the uncovered thin cylinder of an end.At the end face center of drill bushing frame 3, have the installing hole of location drill bushing 4, aperture and the 2nd step of locating drill bushing 4 footpath together; Drill bushing frame 3 opening ends have the adpting flange limit, and 2 taper pin-holes and 3 connecting holes are arranged respectively on this flange, and taper pin-hole and taper bolt 37 external diameters are with the footpath, and connecting hole is slightly larger than the external diameter with drill bushing frame screw 36.
As illustrated in Figures 5 and 6.Locating drill bushing 4 is circular sleeve, and internal diameter and cutter are with the footpath, and the installing hole of external diameter and drill bushing frame 3 is evenly equipped with a plurality of locating detents with the footpath on the end face of the other end of locating drill bushing 4; The outer circumference surface coplane of the outer surface of locating detent and spitting drill cover sleeve; The angle of wedge shape of the inner surface of locating detent in the drill bushing sleeve, extending, and the angle of this angle of wedge is 35 °～45 °; The locating surface that end face on the end face coplane of a plurality of locating detents and the blind hole of workpiece 28 is fitted is located the via hole that has two screws 38 on the drill bushing 4 great circle cards.
Shown in Fig. 7 and 8.Clamp nut 24 is the circular cover of thin-wall case.The aperture of clamp nut 24 endoporus is with the external diameter of lifting body 9 threaded ends.The installing hole that clamping lever 25 is arranged in clamp nut 24 housings one side.
Extremely shown in Figure 6 as Fig. 1.Clamp 23 is packed in the lifting body 9, and the male cone (strobilus masculinus) of clamp 23 is matched with the internal taper hole of lifting body 9; At an end of clamp 23, be set with clamp back-up ring 33 and clamp spring 34.One section of promoting guide pillar 29 is sleeved on the cylindrical of lifting body 9 one ends; With lifting body 9 with promote guide pillar 29 and pack in the lump in the clamp body 1, and make the smaller diameter end that promotes guide pillar 29 pass through hole between the endoporus at clamp body 1 two ends, be arranged in the endoporus of clamp body 1 one ends.Eccentric cam 14 is installed on the camshaft 10; Camshaft 10 is installed in the endoporus of clamp body 1 one ends; The two ends of rocking bar 17 fix with handle 18 and camshaft 10 respectively.Drill bushing frame 3 is installed on the clamp body 1.Clamp nut 24 is sleeved on lifting body 9 one ends.
As Fig. 1 and Fig. 5 and shown in Figure 27.Stage clip guide rod 11 is formed the 2nd step circle external diameter by 3 steps, is slightly less than. the internal diameter of the two ends connecting hole of stage clip backing plate 8 and the internal diameter of stage clip 7,
During assembling:
The little axle sleeve 13 of in the little axis hole 32 of chuck body 1, packing into; The large shaft sleeve 12 of in the big axis hole 31 of chuck body 1, packing into.Penetrate camshaft 10 from the hole of axle sleeve 12, the eccentric cam 14 and the nut 15 that will be arranged in chuck body 1 larger diameter internal bore simultaneously are sleeved on the camshaft 10 successively.Pass the little axle sleeve 13 of chuck body 1 respectively when camshaft 10 after, nut 16 is fixed on the camshaft 10, to move axially between restriction camshaft 10 and the chuck body 1, camshaft 10 is relatively rotated with respect to the large shaft sleeve 12 and the little axle sleeve 13 of chuck body 1, and limited the mutual rotation between camshaft 10 and the eccentric cam 14 and move axially by flat key 35.
By three screws 36 on the drill bushing frame 3 and taper bolt 37 drill bushing frame 3 is fixed on the chuck body 1, has guaranteed that the drill bushing hole of drill bushing frame 3 is coaxial with the hole of the lifting body 9 of clamp mechanism 2.Three-jaw is located drill bushing 4 pack in the drill bushing hole of drill bushing frame 3, and fixing by screw 11.
The assembling process of clamp mechanism parts 2 is that part clamp 23 is packed in the hole of lifting body 9, screws in dog screw 22 in the screwed hole on the face of cylinder of lifting body 9 in the straight trough of part clamp 23.From the following face of lifting body 9, penetrate material returned bar 26 in part clamp 23 endoporus.Material returned spring 27 is packed on the endoporus small column that promotes guide pillar 29.The borehole jack that promotes guide pillar 29 is gone in the cylinder of lifting body 9 band V-type grooves and fit with lifting body 9 large end faces, and two holding screws 30 are screwed in the V-type groove of two screwed holes promoting guide pillars 29 and lifting body 9, promote moving axially of guide pillar 29 and lifting body 9 with restriction.
During use, clamp 23 passes through the transmission of back-up ring 33 all the time under the effect of elastic resistance of clamp stage clip 34, all the time be in and have suitable pressure state, realize 23 closing ins of part clamp and open the function of finishing fast, material returned spring 27 is under the state that is pressed into workpiece 28, material returned bar 26 is downward, be displaced to and promote on the guide pillar 29 endoporus guide pillars and after the plane contact 27 compressions of material returned spring are put in place, after clamp nut 24 is rotated counterclockwise the pine folder, clamp stage clip 34 drags discharge, back-up ring 33 is shifted onto moved on stopping after the section contact of topping bar of 9 times faces of lifting body, part clamp 23 oral areas open.Material returned this moment spring 27 promotes to move on to material returned bar 26 big round platform upper surfaces on the material returned bar 26 and back-up ring 33 lower surfaces conform to, and the part that this moment, part exposed is the state of being convenient to take out, and can conveniently take out.
Claims (7)
1. a positioning fixture is characterized in that, the liftable anchor clamps of described clamp mechanism comprise clamp body (1), clamp mechanism (2), drill bushing frame (3), location drill bushing (4) and lowering or hoisting gear (5); . material returned bar (26) is arranged in clamp (23); Clamp (23) is arranged in lifting body (9), and the male cone (strobilus masculinus) of clamp (23) is matched with the internal taper hole of lifting body (9); At an end of clamp (23), be set with clamp back-up ring (33), clamp spring (34); One section of lifting guide pillar (29) is sleeved on lifting body (9) one ends and has on the cylindrical of V-type groove; Lifting body (9) and promote guide pillar (29) and pack in the lump in the clamp body (1), and make the smaller diameter end that promotes guide pillar (29) pass through hole between the endoporus at clamp body (1) two ends, be arranged in the endoporus of clamp body (1) one end; The camshaft (10) that eccentric cam (14) are housed is arranged in the endoporus of clamp body (1) one end; The two ends of rocking bar (17) fix with handle (18) and camshaft (10) respectively; Drill bushing frame (3) is installed on the clamp body (1); Clamp nut (24) is sleeved on lifting body (9) one ends.
2. a kind of according to claim 1 positioning fixture, it is characterized in that, the hole wall middle part of described clamp body (1) one end endoporus, the lowering or hoisting gear axis hole that has a pair of coaxial Different Diameter of symmetry, and large shaft sleeve (12) and little axle sleeve (13) are housed respectively in two holes, the two ends of camshaft (10) lay respectively in large shaft sleeve (12) and the little axle sleeve (13); The external diameter of the same lifting body in aperture (9) of the endoporus of clamp body (1) other end; Connect between the endoporus at clamp body (1) two ends, and the aperture of this through hole is with the external diameter that promotes guide pillar (29) axostylus axostyle.
3. a kind of according to claim 1 positioning fixture is characterized in that the excircle middle part surface of lifting body (9) has cannelure; The rear surface of lifting body (9) is processed with the V-type groove, this V-type groove with promote guide pillar (29) upper end great circle cylinder on the position of the screw hole that has corresponding; The outside cylinder at lifting body (9) middle part and the upper end hole matched in clearance of clamp body (1); Cylindrical outer surface at lifting body (9) middle part has keyway along axis direction, and this keyway is corresponding with the screwed hole position of clamp body (1); The endoporus of lifting body (9) one ends is a bellmouth, and the tapering of this bellmouth is 30 °; The aperture of the other end endoporus of lifting body (9) is slightly larger than the external diameter of clamp spring (34), and clamp spring (34) is arranged in this section endoporus; The isometrical face of cylinder of the same clamp in aperture (23) in lifting body (9) endoporus stage casing.
4. a kind of according to claim 1 positioning fixture is characterized in that, the outer surface upper end of clamp (23) is the outer cone table top of expanding from inside to outside, and the angle of this outer cone table top is bigger 1 ° than the angle of lifting body (9) bellmouth that cooperates with it; On the outer surface of clamp (23), be evenly equipped with three flutings that connect clamp (23) tube wall to clamp (23) axis direction; Axis direction at cylindrical upper edge, the middle part clamp (23) of clamp (23) has straight trough.
5. a kind of according to claim 1 positioning fixture is characterized in that, promoting guide pillar (29) one end centers has the blind hole of aperture with material returned bar (26) through-hole diameter, and the end face ring endoporus of this end has groove; At the excircle middle part that promotes guide pillar (29) minor diameter axis and the orthogonal perforation chip-removal hole of axis that promotes guide pillar (29) are arranged, and this through hole connects with at the bottom of the hole that promotes guide pillar (29) endoporus; The outer round surface that promotes guide pillar (29) other end end is processed with the mounting groove of stage clip backing plate 8.
6. a kind of according to claim 1 positioning fixture is characterized in that, described lowering or hoisting gear (5) camshaft (10), eccentric cam (14), cam nut (15), camshaft nut (16) and rocking bar (17); On camshaft (10) shaft part corresponding the mounting groove of eccentric cam (14) is arranged, and the fixedly keyway of eccentric cam (14) is arranged on this shaft part, eccentric cam (14) is fixed on the camshaft (10) by key (35) with promoting guide pillar (29) center; In eccentric cam (14) one sides cam nut (15) is installed, is used for the axial location of eccentric cam (14); Camshaft nut (16) is sleeved on the camshaft (10), is positioned at outside the housing of clamp body (1) opposite side; Camshaft (10) one ends are fixedlyed connected with distant bar (17).
7. a kind of according to claim 1 positioning fixture is characterized in that, has the installing hole of location drill bushing (4) at the end face center of drill bushing frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202456259U CN201618976U (en) | 2009-12-07 | 2009-12-07 | Positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202456259U CN201618976U (en) | 2009-12-07 | 2009-12-07 | Positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618976U true CN201618976U (en) | 2010-11-03 |
Family
ID=43022434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202456259U Expired - Fee Related CN201618976U (en) | 2009-12-07 | 2009-12-07 | Positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618976U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490150A (en) * | 2011-11-30 | 2012-06-13 | 昆山迈致治具科技有限公司 | Module assembly tool |
| CN103801952A (en) * | 2014-02-28 | 2014-05-21 | 洛阳东方动力机械有限公司 | Positioning fixture for hole machining |
| CN109108688A (en) * | 2018-09-26 | 2019-01-01 | 西安昆仑工业（集团）有限责任公司 | A kind of fraise jig and processing method of ring parts inside skewed slot processing |
| CN113603006A (en) * | 2021-08-10 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Mechanical structure bearing lifting platform and use method |
| CN114378736A (en) * | 2020-10-21 | 2022-04-22 | 航天科工惯性技术有限公司 | Positioning and clamping device for blind hole |
-
2009
- 2009-12-07 CN CN2009202456259U patent/CN201618976U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490150A (en) * | 2011-11-30 | 2012-06-13 | 昆山迈致治具科技有限公司 | Module assembly tool |
| CN102490150B (en) * | 2011-11-30 | 2013-12-11 | 昆山迈致治具科技有限公司 | Module assembly tool |
| CN103801952A (en) * | 2014-02-28 | 2014-05-21 | 洛阳东方动力机械有限公司 | Positioning fixture for hole machining |
| CN103801952B (en) * | 2014-02-28 | 2016-03-09 | 洛阳东方动力机械有限公司 | A kind of hole machined positioning fixture |
| CN109108688A (en) * | 2018-09-26 | 2019-01-01 | 西安昆仑工业（集团）有限责任公司 | A kind of fraise jig and processing method of ring parts inside skewed slot processing |
| CN109108688B (en) * | 2018-09-26 | 2023-09-29 | 西安昆仑工业（集团）有限责任公司 | Milling machine fixture for machining inner chute of ring part and machining method |
| CN114378736A (en) * | 2020-10-21 | 2022-04-22 | 航天科工惯性技术有限公司 | Positioning and clamping device for blind hole |
| CN113603006A (en) * | 2021-08-10 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Mechanical structure bearing lifting platform and use method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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