CN202255435U - Clamp used for internal-bracing sleeve - Google Patents
Clamp used for internal-bracing sleeve Download PDFInfo
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- CN202255435U CN202255435U CN2011202293916U CN201120229391U CN202255435U CN 202255435 U CN202255435 U CN 202255435U CN 2011202293916 U CN2011202293916 U CN 2011202293916U CN 201120229391 U CN201120229391 U CN 201120229391U CN 202255435 U CN202255435 U CN 202255435U
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- sleeve
- awl dish
- dextrorotation
- handed
- friction wheel
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Abstract
The utility model relates to a clamp used for an internal-bracing sleeve. A machine base top cover is arranged on a machine base. A machine base end cover is arranged in a central hole of the machine base top cover. A worm of a transmission mechanism is arranged in a hole of an installing table which is arranged on the external circumference of the machine base, and vertically cooperates with a worm gear of a feeding mechanism. A shaft passes through the machine base end cover in the central hole of the machine base top cover. One end of the shaft is arranged in a thread sleeve of the feeding mechanism, and the other end is arranged in a bearing base in the center of the machine base. The feeding mechanism is arranged in the machine base. The worm gear of the feeding mechanism is sleeved on the shaft. A first sleeve and a second sleeve of the feeding mechanism are arranged in the machine base, and are sleeved on the shaft. The worm gear is sleeved on the shaft and is arranged between the first sleeve and the second sleeve. A clamping mechanism is arranged on an upper surface of the machine base top cover and is sleeved on the shaft. Inclined planes on the two ends of an elastic sleeve match with external surfaces of a left rotating conical disc and a right rotating conical disc. The intermittent stable movement of a worm shaft is realized via a torque limitation mechanism. The clamp is safe and reliable, has a simple structure and is easy to use.
Description
Technical field
The present invention relates to the sleeve part field of measurement, specifically is interior circle location, clamping to sleeve part, is used for the anchor clamps of measuring unit barrel part profile.
Background technology
The anchor clamps that multiple sleeve part is arranged at present, for example self-centering spring spool anchor clamps, rear pull type muff chuck and flexible self-centering fixture etc.Wherein the sleeve part anchor clamps in " metal processing " the 3rd phase in 2010 " the processing thin-walled long barrel part of self-centering spring spool class anchor clamps " literary composition are significantly improved on the axial location mode; Improved the right alignment requirement of sleeve part clamping; But its transferring power partly still is traditional pull bar; Pull bar directly drives spring spool through rectilinear motion and controls the clamping of sleeve part anchor clamps, lax; The buffer operation space of leaving the sleeve part clamp for is fewer, and the anchor clamps that disclosed sleeve part anchor clamps are pneumatic types in the literary composition, relies on the size of the size adjustment control clamp part power of adjustments of gas pressure; Be not easy to fine motion operating sleeve class part clamp like this, make the possibility of injuring part shape increase.
Summary of the invention
For overcoming the deficiency that is inappropriate for fine motion operation and easy damaged part that exists in the prior art, the present invention proposes a kind of inner bearing type sleeve part anchor clamps.
The present invention includes support, support top cover, axle, support end cap, clamp system, feed mechanism, gear train and torque limited mechanism.Described clamp system comprises left-handed awl dish, guide finger, dextrorotation awl dish, swivel nut, resilient sleeve and gland.Described feed mechanism comprises swivel nut, first sleeve and second sleeve.Described gear train comprises worm gear, worm screw, handle bolt, handle back-up ring, handwheel baffle ring, handle, spring, active friction wheel, friction pulley end cap, driven friction pulley, bearing bridge, clutch shaft bearing stop collar, the second bearing stop collar and worm screw end cap.Described torque limited mechanism comprises handle, handle back-up ring and handle bolt, spring, active friction wheel and driven friction pulley.Wherein:
The support top cover is installed on the support, and the support end cap is positioned at the center pit of support top cover.The worm screw of gear train is installed in the hole that table top is installed on the excircle of support, and with vertical cooperation of worm gear of feed mechanism; Axle passes the support end cap in the support top cap central bore, and an end is positioned at the swivel nut of feed mechanism, and the other end is positioned at the bearing seat at support center.
Feed mechanism is installed in the support.The worm gear set of feed mechanism is contained on the axle; Second sleeve set of feed mechanism is positioned at bearing seat one end at axle.First sleeve and second sleeve all are positioned at support, and are sleeved on the axle.Worm gear set is contained on the axle, and between first sleeve and second sleeve.
Clamp system is located at support top cover upper surface, and is sleeved on the axle.Swivel nut is positioned on the axle of support top.Left-handed awl dish and dextrorotation awl dish all are sleeved on the swivel nut, and left-handed awl dish is installed in swivel nut left-hand thread part, and dextrorotation awl dish is installed in the right-hand thread part of swivel nut.Guide finger passes the through hole on left-handed awl dish, dextrorotation awl dish and the support top cover, and left-handed awl dish and dextrorotation awl dish and support top cover are located by connecting.Resilient sleeve is sleeved on left-handed awl dish and the dextrorotation awl dish, and through gland resilient sleeve is fixed on the support top cover.Be transition fit between resilient sleeve and left-handed awl dish and the dextrorotation awl dish; Be clearance fit between guide finger and left-handed awl dish and the dextrorotation awl dish.
In the through hole the worm screw of gear train is packed the support excircle into through bearing bridge on the gear train erecting bed face, the end of worm screw is positioned at the center pit of worm screw end cap, and the other end of worm screw is positioned at the center pit of active friction wheel.Active friction wheel and driven friction pulley are sleeved on the worm screw of clutch shaft bearing stop collar one end, and between the internal circular surfaces of worm screw outer round surface and clutch shaft bearing stop collar.And an end face of end face of active friction wheel and friction pulley end cap is fitted.Active friction wheel and driven friction pulley are through the tooth engagement of its abutting end end face.Spring housing is contained on the worm screw, and is positioned at active friction wheel one end end face center pit.The taper knob of torque limited mechanism is contained in active friction wheel one end.
One section end face of bearing bridge in the said gear train is installed with the worm screw end cap, and another section of bearing bridge end face is installed with the friction pulley end cap.The clutch shaft bearing stop collar is between a bearing and friction pulley end cap, and the second bearing stop collar is between two bearings.Spring housing is contained on the worm screw, and is positioned at active friction wheel one end end face center pit.
Be evenly distributed with 40 teeth on the said active friction wheel one end end face.The cross section of each tooth is a right-angle triangle, has formed tooth depth by the right-angle side of this right-angle triangle.The angle of each tooth right-angle side and hypotenuse is 70 °.The right-angle side in tooth cross section is parallel to the active friction wheel axis on the said active friction wheel end face.The axis hole aperture of the active friction wheel other end is identical with the external diameter of spring.
Be evenly distributed with 40 teeth on the end face of said driven friction pulley and active friction wheel abutting end, and said each tooth and the cross section be right-angle triangle, formed tooth depth by the right-angle side of this right-angle triangle.The angle of each tooth right-angle side and hypotenuse is 70 °.The right-angle side in tooth cross section is parallel to the active friction wheel axis on the said driven friction pulley end face.
The tooth of driven friction pulley and the tooth of active friction wheel directly are meshing with each other.
Left-handed awl dish and dextrorotation awl dish are outer round surface for becoming diameter disk, and promptly described left-handed awl dish and dextrorotation awl dish outer round surface are the inclined-plane.The tapped through hole of left-handed awl dish is a left-hand thread (LHT), and the tapped through hole of dextrorotation awl dish is a right-hand thread.Described left-handed awl dish is installed in swivel nut left-hand thread part, and dextrorotation awl dish is installed in swivel nut right-hand thread part.2 guide pin hole that connect card are being symmetrically distributed on the tapped through hole both sides of left-handed awl dish and dextrorotation awl disk center.
On the sleeve of resilient sleeve, have three distortion grooves, the length of this distortion groove connects the length of resilient sleeve sleeve, and the direction of this distortion groove is consistent with the centerline direction of resilient sleeve, and is evenly distributed on the circumference of resilient sleeve sleeve.On the flange of resilient sleeve, also have three distortion grooves, the length of this distortion groove connects the resilient sleeve flange, and this is out of shape the centerline direction of the direction of groove perpendicular to resilient sleeve, and is evenly distributed on the circumference of resilient sleeve flange.Distortion groove on the resilient sleeve sleeve and the position of distortion groove on the resilient sleeve circumference on the resilient sleeve flange are staggered, and the groove that respectively is out of shape on the resilient sleeve flange lays respectively on the bisector of two adjacent on resilient sleeve sleeve distortion groove angles.Resilient sleeve endoporus two ends are the reducing hole, and the middle part is isometrical hole, make the bore area at resilient sleeve two ends be the outside inclined-plane that enlarges; The inclined-plane at resilient sleeve two ends cooperates with the outside surface of left-handed awl dish, dextrorotation awl dish respectively.
The clamping principle of clamping part: initial position is left-handed awl dish and the dextrorotation awl dish middle part at swivel nut; Because between resilient sleeve and left-handed awl dish, the dextrorotation awl dish is transition fit; When putting into sleeve part; Because the even elastic deformation characteristic after the taper surface of resilient sleeve is stressed; Resilient sleeve, left-handed awl dish and dextrorotation awl dish are pushing sleeve part jointly equably; Worm gear rotated counterclockwise and drove swivel nut and rotate counterclockwise this moment, left-handed awl dish and dextrorotation awl dish prolong respectively guide finger upwards, move downward, each spring lobe that the taper surface dislocation of resilient sleeve taper surface and left-handed awl dish, dextrorotation awl dish is mobile to force spring housing entad evenly contraction come the gripping sleeve tube kind part.
Form the stable motion at intermittence that torque limited mechanism guarantees worm shaft by handle, handle back-up ring and handle bolt, spring, active friction wheel, driven friction pulley; Behind resilient sleeve and left-handed awl dish, dextrorotation awl dish clamping sleeve tube kind part; Turning handle makes the clamp sleeve part and gives certain pretightning force; Suitable pretightning force guarantees normal operation and size constant of sleeve part; The turning handle bolt can be regulated the size of pretightning force, and controlling this instance can be owing to crossing the fixing variation that changes accurate sleeve part size.
The principle of feeding part torque limited mechanism: the right-angle triangle profile of tooth by active friction wheel and driven friction pulley cooperates completion; Stagger and promote active friction wheel and step back compression spring configuring hypotenuse friction that active friction wheel under the pretightning force situation clockwise rotates the hypotenuse that causes active friction wheel right-angle triangle profile of tooth and driven friction pulley right-angle triangle profile of tooth; After active friction wheel rotates a profile of tooth; Spring force promotes active friction wheel and advances; The hypotenuse of active friction wheel and driven friction pulley right-angle triangle profile of tooth is close together once more; Can guarantee with given pretightning force gripping sleeve tube kind part with the invalid rotation of this form 3-4 circle, and can protect the outside surface of part preferably.When active friction wheel rotates counterclockwise; The right-angle side of the right-angle side of active friction wheel right-angle triangle profile of tooth and driven friction pulley right-angle triangle profile of tooth offsets; Thereby along with active friction wheel rotates counterclockwise, realize opening the sleeve part anchor clamps from driven friction pulley, take out part.The present invention has characteristics simple in structure, safe and reliable and easy to use.
Description of drawings
Accompanying drawing 1 is the front view of inner bearing type sleeve part clamp structure synoptic diagram;
Accompanying drawing 2 is vertical views of inner bearing type sleeve part clamp structure synoptic diagram;
Accompanying drawing 3 is structural representations of feed mechanism;
Accompanying drawing 4 is structural representations of support;
Accompanying drawing 5 is structural representations of active friction wheel;
Accompanying drawing 6 is structural representations of support top cover;
Accompanying drawing 7 is structural representations of gland;
Accompanying drawing 8a, Fig. 8 b are the structural representations of resilient sleeve; Wherein Fig. 8 a is a schematic three dimensional views, and Fig. 8 b is a cut-open view;
Accompanying drawing 9a, Fig. 9 b are the structural representations of awl dish; Wherein Fig. 9 a is a front view, and Fig. 9 b is a vertical view.Among the figure:
1. support 2. support top covers 3. glands 4. resilient sleeve 5. left-handed awl dishes
6. guide finger 7. dextrorotation awls coil 10. of 8. swivel nut back-up rings, 9. swivel nuts
11. support end cap 12. worm gears 13. first sleeves 14. back-up rings 15. bearing (ball) covers
16. second sleeve, 17. worm screws, 18. handle bolts, 19. handle back-up rings, 20. handwheel baffle rings
21. handle 22. springs 23. active friction wheels 24. friction pulley end caps 25. driven friction pulleys
26. clutch shaft bearing stop collar 27. round nuts 28. bearing bridge 29. worm shaft sleeves
30. the second bearing stop collar, 31. bearings, 32. worm screw end caps
Embodiment
This instance is a kind of anchor clamps of inner bearing type sleeve part, is used for the clamping and the detection of sleeve part.
As depicted in figs. 1 and 2.This instance comprises support 1, support top cover 2, axle 10, support end cap 11, clamp system, feed mechanism, gear train and torque limited mechanism; Wherein support top cover 2 is installed on the support 1; Support end cap 11 is positioned at the center pit of support top cover 2; Axle 10 bearing seat and tightens up through bearing (ball) cover 15 in the center pit of support 1.Clamp system is installed on the support top cover 2, and feed mechanism is installed in the support 1, accomplishes importing into of gripping sleeve tube kind part and applied external force respectively through clamp system and feed mechanism.The installation table top that gear train is arranged on the excircle of support 1, and this circumferential surface that table top and support 1 are installed is tangent.
As shown in Figure 4, support 1 is circular housing, is used to support whole anchor clamps.There is a boss at support 1 inner bottom part center, and there is shoulder hole at this boss center, and there are 4 tapped through holes the boss outer, thereby is used to install bearing (ball) cover 15 solid bearings.The small-bore of described shoulder hole is with to be assemblied in the bearing outside diameter of axle on 10 identical, and the large aperture of shoulder hole is identical with the external diameter of bearing (ball) cover 15, and it is interior and pass through bolt that bearing (ball) cover 15 embeds macropores.The connecting hole of organic block top cover 2 on the end face of support 1 groove walls.The radially outer flange that extends is arranged at support 1 bottom, through this flange support is fixed on the miscellaneous equipment.The boss of this circumferential surface of protrusion is arranged on the outer circumference surface of support 1, and boss surface has formed the installation table top of gear train, and table top should be installed and circumferential surface tangent.On the described installation table top through hole is arranged, the center line of this through hole is perpendicular to the installation table top, and the vertical range of the center line of this center line and support 1 is the reference radius sum of worm screw 17 and worm gear 12.The described through hole of ring is evenly equipped with the threaded connection hole of bearing bridge 28 on the installation table top, and the bearing bridge 28 of feed mechanism passes the through hole of installation table top and is fixing thereof on the support 1 through the bolt connection.
As shown in Figure 6, support top cover 2 is a circular slab, and its external diameter is identical with the external diameter of support 1.There is installation base at the center of support top cover 2 inside surfaces, and 2 guide pin hole that are symmetrically distributed in the dead eye both sides are arranged on the installation base, week is evenly equipped with 4 threaded holes that guide finger 6 is installed around each guide pin hole is outer.The center of support top cover 2 outside surfaces is fluted, and the diameter of described groove is identical with the external diameter of left-handed awl dish.At support top cover 2 centers stair-stepping through hole is arranged, in the central through hole of said support top cover 2, on the plane that forms by ladder, the mounting hole of organic block end cap 11.The major diameter of the stepped central through hole of support top cover 2 is identical with the external diameter of support end cap 11, and the minor diameter of this through hole is identical with the external diameter of bearing seat.The mounting hole that 6 supports 1 are arranged at the outer rim place of support top cover 2 in the mounting hole inboard of described support 1, is evenly distributed with the mounting hole of gland 3.
Support end cap 11 is circular.The through hole that cooperates with axle 10 is arranged at the center of support end cap 11.The annular boss that axial protrusion is arranged on a surface of support end cap 11 is used for the axial location of bearing outer ring.Outer rim at support end cap 11 is evenly equipped with 6 counter sinks, is used for support end cap 11 and support top cover 2 are connected.
Axle 10 be a multidiameter, and the external diameter of said 10 1 ends is identical with the internal diameter of swivel nut 9, and this end end face has screw hole, is used to install swivel nut back-up ring 8; The external diameter of the other end of said axle 10 is identical with the internal diameter of second sleeve 16, and this end end face has 2 screw holes, is used to install back-up ring 14; There is the two-stage step at the middle part of said axle 10, and wherein the major diameter step cooperates with the center pit of support end cap 11, and the minor diameter step cooperates with the endoporus of bearing seat.
Feed mechanism comprises axle 10, swivel nut 9, first sleeve 13, second sleeve 16, bearing seat.Support end cap 11, one ends that axle 10 passes in support top cover 2 center pits are positioned at swivel nut 9, and the other end is positioned at the bearing seat at support 1 center.First sleeve 13 and second sleeve 16 all are positioned at support 1, and are sleeved on the axle 10.Worm gear 12 is sleeved on the axle 10, and between first sleeve 13 and second sleeve 16. Worm screw 17 and 12 vertical cooperations of worm gear.
Gear train comprises worm gear 12, worm screw 17, handle bolt 18, handle back-up ring 19, handwheel baffle ring 20, handle 21, spring 22, active friction wheel 23, friction pulley end cap 24, driven friction pulley 25, bearing bridge 28, worm shaft sleeve 29, clutch shaft bearing stop collar 26, the second bearing stop collar 30 and worm screw end cap 32.
Bearing bridge 28 is packed on support 1 excircle in the through hole on the gear train erecting bed face.Be installed with worm screw end cap 32 at 28 1 sections end faces of bearing bridge, bearing bridge 28 another section end faces are installed with friction pulley end cap 24; The internal diameter of bearing bridge 28 is identical with the external diameter of bearing 31.Worm screw 17 is packed in the bearing bridge 28, and the end of worm screw 17 is positioned at the center pit of worm screw end cap 32, and the other end of worm screw 17 is positioned at the center pit of active friction wheel 23.Pair of bearings 31 is sleeved on the worm screw 17, lays respectively at worm screw 17 near worm screw end cap 32 1 ends and worm screw 17 middle parts.The clutch shaft bearing stop collar 26 and the second bearing stop collar 30 are contained in the bearing bridge 28; Clutch shaft bearing stop collar 26 all cooperates with the internal surface gaps of bearing bridge 28 with the outer round surface of the second bearing stop collar 30.The second bearing stop collar 30 is between two bearings 31, and clutch shaft bearing stop collar 26 is between a bearing and friction pulley end cap 24.Active friction wheel 23 is sleeved on the worm screw 17 of clutch shaft bearing stop collar 26 1 ends with driven friction pulley 25, and between the internal circular surfaces of worm screw 17 outer round surface and clutch shaft bearing stop collar 26.And an end face of end face on active friction wheel 23 excircle upper flange limits and friction pulley end cap 24 is fitted; Active friction wheel 23 and of the tooth engagement of driven friction pulley 25 through its end end face that cooperatively interacts.Spring 22 is sleeved on the worm screw 17, and is positioned at active friction wheel 23 1 end end face center pits.Handle 21 is sleeved on active friction wheel 23 1 ends; Another end face on end face of handle 21 and active friction wheel 23 excircle upper flange limits is fitted.In the groove of handle 21 end faces, handwheel baffle ring 20 is installed, be used for spring 22 is fixed in the center pit of active friction wheel 23 end faces.Handle back-up ring 19 places in the groove of handle 21 end faces, and clearance fit between the outer round surface of this handle back-up ring 19 and the handle 21 central channel inwalls, is used for handwheel baffle ring 20 is fixed in the groove of handle 21 end faces; Handle bolt 18 passes the center pit of handle back-up ring 19, is installed in the center pit of worm screw 17 end faces, and handle 21 is fixed tightly in worm screw 17 1 ends.
Torque limited mechanism comprises handle 21, handle back-up ring 19 and handle bolt 18, spring 22, active friction wheel 23 and driven friction pulley 25.Torque limited mechanism is used to guarantee the breakaway torque stable motion of worm screw 17 to set.When regulating breakaway torque, the position of turning handle bolt 18 adjusting handle back-up rings 19 changes the elongation of spring 22, thereby realizes regulating breakaway torque.When the moment of turning handle 21 surpassed predefined breakaway torque, then the external force of turning handle 21 can not be imported worm screw 17 into, thereby guaranteed the security of sleeve part clamping, can not destroy the surface and the shape of sleeve part because of maloperation.In torque limited mechanism:
As shown in Figure 5, at active friction wheel 23 middle parts the radially flange of protrusion is arranged, the axis hole of perforation is arranged at active friction wheel 23 centers, and the aperture of said axis hole is identical with the external diameter of worm screw 17.Be evenly distributed with 40 teeth on the active friction wheel 23 1 end end faces; The cross section of each tooth is a right-angle triangle, has formed tooth depth by the right-angle side of this right-angle triangle, and in the present embodiment, tooth depth is 1.44mm; The angle of each tooth right-angle side and hypotenuse is 70 °.The right-angle side in tooth cross section is parallel to the active friction wheel axis on said active friction wheel 23 end faces.The outer round surface of active friction wheel 23 other ends has keyway, and axis hole aperture that should the end place is identical with the external diameter of spring 22.
The tooth of driven friction pulley and the tooth of active friction wheel directly are meshing with each other.
Friction pulley end cap 24 is circular, and the through hole with worm screw 17 clearance fit is arranged at the center of friction pulley end cap 24, is evenly equipped with 6 counter sinks in the outer rim of friction pulley end cap 24, is used to block clutch shaft bearing stop collar 26 and does not allow it to move along worm screw 17 axis directions.Worm screw end cap 32 profiles and support end cap 11 appearance similars, size are slightly different, are used for the axial location of bearing outer ring.
Bearing bridge 28 is a sleeve shaped; One end has the radially joint flange limit of protrusion; On this flange, be evenly equipped with 6 counter sinks; Be used for bearing bridge 28 is fixed in the installation table top of gear train on the support 1, two end faces of bearing bridge 28 main parts all have 6 threaded holes that along the circumferential direction evenly distribute, and are respectively applied for friction pulley end cap 24 and worm screw end cap 32 are fixed on the bearing bridge 28.
By handle 21, handle back-up ring 19 and handle bolt 18, spring 22, active friction wheel 23, driven friction pulley 25 form torque limited mechanism guarantee worm shaft with given moment stable motion; Surpass given in advance moment then the external force of turning handle 21 can not import worm screw 17 into; Thereby guarantee the security of sleeve part clamping, can not destroy the surface and the shape of sleeve part because of artificial maloperation.After this instance resilient sleeve 4 and left-handed awl dish 5, dextrorotation awl coil 7 clamping sleeve tube kind parts; Turning handle 21 makes anchor clamps with predefined pretightning force gripping sleeve tube kind part; Suitable pretightning force guarantees the normal operation of sleeve part; Turning handle bolt 18 can be regulated the size of pretightning force, thereby can be owing to crossing the fixing variation that changes accurate sleeve part size.
The principle of torque limited mechanism: the right-angle triangle profile of tooth motion by active friction wheel 23 and driven friction pulley 25 is accomplished.Stagger and promote active friction wheel 23 and step back compression spring 22 configuring hypotenuse friction that active friction wheel 23 under the pretightning force situation clockwise rotates the hypotenuse that causes active friction wheel 23 right-angle triangle profiles of tooth and driven friction pulley 25 right-angle triangle profiles of tooth; After active friction wheel 23 rotates a profile of tooth; Spring 22 elastic force promote active friction wheel 23 and advance; The hypotenuse of active friction wheel 23 and driven friction pulley 25 right-angle triangle profiles of tooth is close together once more; Can guarantee to guarantee the safety of sleeve part with this with the invalid rotation of this form 3-4 circle with given pretightning force gripping sleeve tube kind part.When active friction wheel 23 rotates counterclockwise; The right-angle side of the right-angle side of active friction wheel 23 right-angle triangle profiles of tooth and driven friction pulley 25 right-angle triangle profiles of tooth offsets; Thereby driven friction pulley 25 is along with active friction wheel 23 rotates counterclockwise, and realizes opening the sleeve part anchor clamps, takes out part.
Clamp system comprises left-handed awl dish 5, guide finger 6, dextrorotation awl dish 7, swivel nut back-up ring 8, swivel nut 9, resilient sleeve 4 and gland 3.Swivel nut 9 is sleeved on the axle 10 that is positioned at support 1 top.Left-handed awl dish 5 all is sleeved on the swivel nut 9 with dextrorotation awl dish 7.Guide finger 6 passes the through hole on left-handed awl dish 5, dextrorotation awl dish 7 and the support top cover 2, and left-handed awl dish 5 and dextrorotation awl dish 7 and support top cover 2 are located by connecting.Resilient sleeve 4 is sleeved on left-handed awl dish 5 and the dextrorotation awl dish 7, and tightens up through gland 3.Guide finger 6 passes the guide pin hole on the support top cover 2, and through being bolted on the support top cover 2, guide finger 6 provides guiding for the motion of left-handed awl dish 5 and dextrorotation awl dish 7.At support top cover 2 dead eyes bearing is installed, axle 10 passes brearing bore, through bearing bridge axle 10, axle 10 can be rotated in support top cover 2, and bearing is through support end cap 11 and first sleeve, 13 fixed positions here.Swivel nut 9 is installed in the big end of axle 10 diameters of axle, and swivel nut 9 reeded ends are installed in the big end outside of axle 10 diameters of axle, and swivel nut back-up ring 8 comes gland nut 9 through screw retention in axle 10 ends, and swivel nut back-up ring 8 guarantees that swivel nuts 9 can not move up and down along axle 10.Left-handed awl dish 5 is installed in swivel nut 9 left-hand thread parts, and dextrorotation awl dish 7 is installed in swivel nut 9 right-hand thread parts, and left-handed awl dish 5 all passes guide finger 6 with dextrorotation awl dish 7, is clearance fit between them.Gland 3 is fixed on resilient sleeve 4 on the support top cover 2 through bolt, is transition fit between resilient sleeve 4 and left-handed awl dish 5, the dextrorotation awl dish 7, and the gap of transition fit is used for the gripping sleeve tube kind part.Support end cap 11, first sleeve 13, second sleeve 16, back-up ring 14 and bearing (ball) cover 15 guarantee the positions that worm gears 12 are in and worm shaft 17 accurately cooperates.
In described clamp system:
Left-handed awl dish 5 is outer round surface for becoming diameter disk with dextrorotation awl dish 7, and it is the inclined-plane that promptly described left-handed awl dish 5 coils 7 outer round surface with the dextrorotation awl.There is tapped through hole at the center of left-handed awl dish 5 and dextrorotation awl dish 7, and the diameter of this through hole is identical with the external diameter of swivel nut 9, and the tapped through hole of left-handed awl dish 5 is left-hand thread (LHT), and the tapped through hole of dextrorotation awl dish 7 is a right-hand thread.2 guide pin hole that connect cards are being symmetrically distributed on the tapped through hole both sides that left-handed awl dish 5 and dextrorotation awl coil 7 centers.
The external diameter of guide finger 6 and left-handed awl dish 5 are identical with guide pin hole internal diameter on the dextrorotation awl dish 7, and guide finger 6 one ends have the radially joint flange limit of protrusion, on this flange, are evenly equipped with bolt hole.
Gland 3 is circular, and its endoporus is stepped.The minimum diameter of described gland 3 and maximum inner diameter cooperate with the external diameter of resilient sleeve 4 sleeves and the crest clearance of flange respectively.On the end face of an end of gland 3, be evenly equipped with the mounting hole of support top cover 2.
Resilient sleeve 4 also is circular, and is made into three valve structures that centering clamps, and makes resilient sleeve 4 receive can produce uniform elastic deformation after the external force, to realize the self-centering of workpiece and to compress.The specific structural features of resilient sleeve 4 is described below: the sleeve one end end face in resilient sleeve 4 has the radially flange of protrusion.The external diameter of the sleeve of said resilient sleeve 4 and the external diameter of flange are slightly less than the minimum diameter and the maximum inner diameter of gland 3 respectively.On the sleeve of resilient sleeve 4, have three distortion grooves, the length of this distortion groove connects the length of resilient sleeve sleeve, and the direction of this distortion groove is consistent with the centerline direction of resilient sleeve 4, and is evenly distributed on the circumference of resilient sleeve sleeve.On the flange of resilient sleeve 4, also have three distortion grooves, the length of this distortion groove connects the resilient sleeve flange, and this is out of shape the centerline direction of the direction of groove perpendicular to resilient sleeve 4, and is evenly distributed on the circumference of resilient sleeve 4 flanges.Distortion groove on the resilient sleeve sleeve and the position of the distortion groove on the resilient sleeve flange on resilient sleeve 4 circumference are staggered, and the groove that respectively is out of shape on the resilient sleeve flange lays respectively on the bisector of two adjacent on resilient sleeve sleeve distortion groove angles.Resilient sleeve 4 endoporus two ends are the reducing hole, and the middle part is isometrical hole, make the bore area at resilient sleeve 4 two ends be the outside inclined-plane that enlarges.The inclined-plane at resilient sleeve 4 two ends cooperates with the outside surface of left-handed awl dish 5, dextrorotation awl dish 7 respectively.
Swivel nut back-up ring 8 is discoid with back-up ring 14.There is the screw deep gouge at swivel nut back-up ring 8 centers; The end face of back-up ring 14 has 2 screw deep gouges.Swivel nut back-up ring 8 is installed in the swivel nut 9 and is positioned at axle 10 1 ends.Back-up ring 14 is installed in the bearing (ball) cover 15 and is positioned at axle 10 other ends.
During work; The initial position of clamp system is left-handed awl dish 5 and the middle part of dextrorotation awl dish 7 at swivel nut 9; Originally be exactly transition fit between resilient sleeve 4 and left-handed awl dish 5, the dextrorotation awl dish 7; When putting into sleeve part, because the taper surface of the resilient sleeve 4 even elastic deformation characteristic after stressed, resilient sleeve 4, left-handed awl dish 5 and dextrorotation awl dish 7 are pushing sleeve part jointly equably; The power that is imported into by handle 21 this moment makes worm gear 12 rotate counterclockwise drive swivel nut 9 and rotates counterclockwise; Left-handed awl dish 5 prolongs guide finger 6 respectively with dextrorotation awl dish 7 and makes progress, moves downward, and the taper surface dislocation of resilient sleeve 4 taper surfaces and left-handed awl dish 5, dextrorotation awl dish 7 is moved each the spring lobe that forces spring housing and entad evenly shunk the gripping sleeve tube kind part, guarantees the circular degree of sleeve part.
This instance motion process comprises two motion processes: place and clamp part and open anchor clamps and take out part.
When placement and clamping part, adjusting handle bolt 18 is set the pretightning force of these instances with needs, and turning handle 21 makes left-handed awl dish 5 and dextrorotation awl dish 7 be in the middle part of swivel nut 9.Sleeve part is positioned between resilient sleeve 4 and awl dish 5, the dextrorotation awl dish 7; Clockwise rotate handle 21, the rotation of handle 21 drives active friction wheel 23 and rotates, and drives worm shaft 17 through torque limited mechanism and rotates; The rotation of worm shaft 17 drives worm gear 12 and rotates; The rotating band moving axis 10 of worm gear 12 rotates, and the rotating band movable snail sleeve 9 of axle 10 rotates, and the rotation of swivel nut 9 drives left-handed awl dish 5 and dextrorotation awl dish 7 and prolongs guide finger 6 and move downward respectively and move upward; Distance shrinkage between resilient sleeve 4 and awl dish 5, the dextrorotation awl dish 7 then; Hear the sound of click under the 3-4 until turning handle 21, make the running of torque limited mechanism reach preset pretightning force, thus the gripping sleeve tube kind part.
When opening anchor clamps and taking out part, rotate counterclockwise handle 21, the rotation of handle 21 drives active friction wheel 23 and rotates; Driving worm shaft 17 through torque limited mechanism rotates; The rotation of worm shaft 17 drives worm gear 12 and rotates, and the rotating band moving axis 10 of worm gear 12 rotates, and the rotating band movable snail sleeve 9 of axle 10 rotates; The rotation of swivel nut 9 drives left-handed awl dish 5 and dextrorotation awl dish 7 and prolongs guide finger 6 and move upward respectively and move downward; Then distance increases between resilient sleeve 4 and left-handed awl dish 5, the dextrorotation awl dish 7, is in the middle part of swivel nut 9 until left-handed awl dish 5 and dextrorotation awl dish 7, takes out sleeve part.
Claims (7)
1. anchor clamps that are used for the inner bearing type sleeve is characterized in that, comprise support, support top cover, axle, support end cap, clamp system, feed mechanism, gear train and torque limited mechanism; Described clamp system comprises left-handed awl dish, guide finger, dextrorotation awl dish, swivel nut, resilient sleeve and gland; Described feed mechanism comprises swivel nut, first sleeve and second sleeve; Described gear train comprises worm gear, worm screw, handle bolt, handle back-up ring, handwheel baffle ring, handle, spring, active friction wheel, friction pulley end cap, driven friction pulley, bearing bridge, clutch shaft bearing stop collar, the second bearing stop collar and worm screw end cap; Described torque limited mechanism comprises handle, handle back-up ring and handle bolt, spring, active friction wheel and driven friction pulley; Wherein:
A. the support top cover is installed on the support, and the support end cap is positioned at the center pit of support top cover; The worm screw of gear train is installed in the hole that table top is installed on the excircle of support, and with vertical cooperation of worm gear of feed mechanism; Axle passes the support end cap in the support top cap central bore, and an end is positioned at the swivel nut of feed mechanism, and the other end is positioned at the bearing seat at support center;
B. feed mechanism is installed in the support; The worm gear set of feed mechanism is contained on the axle; Second sleeve set of feed mechanism is positioned at bearing seat one end at axle; First sleeve and second sleeve all are positioned at support, and are sleeved on the axle; Worm gear set is contained on the axle, and between first sleeve and second sleeve;
C. clamp system is located at support top cover upper surface, and is sleeved on the axle; Swivel nut is positioned on the axle of support top; Left-handed awl dish and dextrorotation awl dish all are sleeved on the swivel nut, and left-handed awl dish is installed in swivel nut left-hand thread part, and dextrorotation awl dish is installed in the right-hand thread part of swivel nut; Guide finger passes the through hole on left-handed awl dish, dextrorotation awl dish and the support top cover, and left-handed awl dish and dextrorotation awl dish and support top cover are located by connecting; Resilient sleeve is sleeved on left-handed awl dish and the dextrorotation awl dish, and through gland resilient sleeve is fixed on the support top cover; Be transition fit between resilient sleeve and left-handed awl dish and the dextrorotation awl dish; Be clearance fit between guide finger and left-handed awl dish and the dextrorotation awl dish;
D. the worm screw of gear train is packed the support excircle into through bearing bridge in the through hole on the gear train erecting bed face, the end of worm screw is positioned at the center pit of worm screw end cap, and the other end of worm screw is positioned at the center pit of active friction wheel; Active friction wheel and driven friction pulley are sleeved on the worm screw of clutch shaft bearing stop collar one end, and between the internal circular surfaces of worm screw outer round surface and clutch shaft bearing stop collar; And an end face of end face of active friction wheel and friction pulley end cap is fitted; Active friction wheel and driven friction pulley are through the tooth engagement of its abutting end end face; Spring housing is contained on the worm screw, and is positioned at active friction wheel one end end face center pit; The taper knob of torque limited mechanism is contained in active friction wheel one end.
2. a kind of according to claim 1 anchor clamps of inner bearing type sleeve part is characterized in that, one section end face of the bearing bridge in the gear train is installed with the worm screw end cap, and another section of bearing bridge end face is installed with the friction pulley end cap; The clutch shaft bearing stop collar is between a bearing and friction pulley end cap, and the second bearing stop collar is between two bearings.
3. like the anchor clamps of the said a kind of inner bearing type sleeve part of claim 2, it is characterized in that spring housing is contained on the worm screw, and be positioned at active friction wheel one end end face center pit.
4. a kind of according to claim 1 anchor clamps of inner bearing type sleeve part is characterized in that, are evenly distributed with 40 teeth on the active friction wheel one end end face; The cross section of each tooth is a right-angle triangle, has formed tooth depth by the right-angle side of this right-angle triangle; The angle of each tooth right-angle side and hypotenuse is 70 °; The right-angle side in tooth cross section is parallel to the active friction wheel axis on the said active friction wheel end face; The axis hole aperture of the active friction wheel other end is identical with the external diameter of spring.
5. a kind of according to claim 1 anchor clamps of inner bearing type sleeve part; It is characterized in that; Be evenly distributed with 40 teeth on the end face of driven friction pulley and active friction wheel abutting end, and said each tooth and the cross section be right-angle triangle, formed tooth depth by the right-angle side of this right-angle triangle; The angle of each tooth right-angle side and hypotenuse is 70 °; The right-angle side in tooth cross section is parallel to the active friction wheel axis on the said driven friction pulley end face.
6. a kind of according to claim 1 anchor clamps of inner bearing type sleeve part is characterized in that, left-handed awl dish and dextrorotation awl dish are outer round surface for becoming diameter disk, and promptly described left-handed awl dish and dextrorotation awl dish outer round surface are the inclined-plane; The tapped through hole of left-handed awl dish is a left-hand thread (LHT), and the tapped through hole of dextrorotation awl dish is a right-hand thread; Described left-handed awl dish is installed in swivel nut left-hand thread part, and dextrorotation awl dish is installed in swivel nut right-hand thread part; 2 guide pin hole that connect card are being symmetrically distributed on the tapped through hole both sides of left-handed awl dish and dextrorotation awl disk center.
7. like the anchor clamps of the said a kind of inner bearing type sleeve part of claim 6; It is characterized in that; On the sleeve of resilient sleeve, have three distortion grooves, the length of this distortion groove connects the length of resilient sleeve sleeve; The direction of this distortion groove is consistent with the centerline direction of resilient sleeve, and is evenly distributed on the circumference of resilient sleeve sleeve; On the flange of resilient sleeve, also have three distortion grooves, the length of this distortion groove connects the resilient sleeve flange, and this is out of shape the centerline direction of the direction of groove perpendicular to resilient sleeve, and is evenly distributed on the circumference of resilient sleeve flange; Distortion groove on the resilient sleeve sleeve and the position of distortion groove on the resilient sleeve circumference on the resilient sleeve flange are staggered, and the groove that respectively is out of shape on the resilient sleeve flange lays respectively on the bisector of two adjacent on resilient sleeve sleeve distortion groove angles; Resilient sleeve endoporus two ends are the reducing hole, and the middle part is isometrical hole, make the bore area at resilient sleeve two ends be the outside inclined-plane that enlarges; The inclined-plane at resilient sleeve two ends cooperates with the outside surface of left-handed awl dish, dextrorotation awl dish respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202293916U CN202255435U (en) | 2011-06-30 | 2011-06-30 | Clamp used for internal-bracing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202293916U CN202255435U (en) | 2011-06-30 | 2011-06-30 | Clamp used for internal-bracing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255435U true CN202255435U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202293916U Withdrawn - After Issue CN202255435U (en) | 2011-06-30 | 2011-06-30 | Clamp used for internal-bracing sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294664A (en) * | 2011-06-30 | 2011-12-28 | 西北工业大学 | Clamp for inner support sleeve |
| CN110967043A (en) * | 2019-12-30 | 2020-04-07 | 重庆工商职业学院 | Engineering measuring instrument calibration device |
-
2011
- 2011-06-30 CN CN2011202293916U patent/CN202255435U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294664A (en) * | 2011-06-30 | 2011-12-28 | 西北工业大学 | Clamp for inner support sleeve |
| CN102294664B (en) * | 2011-06-30 | 2013-04-17 | 西北工业大学 | Clamp for inner support sleeve |
| CN110967043A (en) * | 2019-12-30 | 2020-04-07 | 重庆工商职业学院 | Engineering measuring instrument calibration device |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130417 |
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