CN114473080B - Elastic pre-tightening clamp for gear shaft end face of speed reducer - Google Patents
Elastic pre-tightening clamp for gear shaft end face of speed reducer Download PDFInfo
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- CN114473080B CN114473080B CN202210159708.6A CN202210159708A CN114473080B CN 114473080 B CN114473080 B CN 114473080B CN 202210159708 A CN202210159708 A CN 202210159708A CN 114473080 B CN114473080 B CN 114473080B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses an elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer, which relates to the technical field of processing equipment of speed reducers and comprises an end face driving tooth sleeve, an opening groove shape, teeth, a supporting bar, a flexible sheet, a first rack, a gear, a second rack, an arc-shaped groove, an arc-shaped plate and a semi-flexible ball. By adopting the technical scheme, the contact friction force between the teeth on the end face of the end face driving tooth sleeve and the end face of the gear shaft can be increased under the condition that the positioning precision of the double centers is not affected; the end face drives the gear sleeve to axially move, the opening groove-shaped compression amount is adjusted, the purpose of stably clamping the elastic pre-tightening gear shaft can be achieved, and the machining efficiency and precision are ensured; the flexible clamping of diversified is fixed to the gear shaft outer wall tip outside under a plurality of roll-shaped flexible piece cooperation effects, can effectively strengthen the fixed effect of centre gripping to the gear shaft, can carry out the centre gripping to the gear shaft of equidimension simultaneously and fix, need not to change clamping part, convenient operation is swift, and avoids the material extravagant.
Description
Technical Field
The invention relates to the technical field of speed reducer machining equipment, in particular to an elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer.
Background
The speed reducer is an independent component consisting of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing, and is commonly used as a speed reduction transmission between the driving element and the working machine. The speed reducer is generally used for low-rotation-speed and high-torque transmission equipment, and the purpose of reducing speed is achieved by engaging a motor, an internal combustion engine or other power running at high speed with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer. The gear shaft is a main component part of the speed reducer, so that the safety and stability of the movement of the speed reducer are ensured. At present, for a hard tooth surface gear shaft after carburization and quenching, clamping is generally carried out by adopting external circle packing or center propping central hole type pre-tightening when a tooth surface is machined on a worm gear grinding machine, so that the tooth surface precision is ensured.
The tooth surface precision of the hard tooth surface gear shaft has very high requirements, the outer circle packing clamping is adopted, the grinding wheel is easy to interfere due to the limitation of equipment travel and workpiece structures, and a large number of packing sleeves with corresponding specifications are matched according to the specification of the outer circle, so that waste is caused; the mode that the upper center and the lower center compress the double center holes is limited by the size of the center contact surface of the center Kong Bi center, the surface roughness of the taper contact surface of the center hole and the center pressure of the machine tool center, the clamping force of the gear shaft is insufficient, the positions of a workpiece tooth slot and a grinding wheel tooth slot are relatively misplaced, so that tooth mouth collapse of the grinding wheel is caused, and the tooth surface precision exceeds the standard.
Disclosure of Invention
The invention aims to provide an elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a gear shaft terminal surface elasticity pretension anchor clamps of speed reducer, includes the gear grinding machine lower top, gear grinding machine upper tip and terminal surface drive tooth cover, gear grinding machine lower top is located gear grinding machine upper tip below, terminal surface drive tooth cover is located gear grinding machine lower top outside and is close to gear grinding machine upper tip one end, terminal surface drive tooth cover outer wall is equipped with a plurality of open slot shape, open slot shape parallel staggered arrangement, terminal surface drive tooth cover outer wall is close to gear grinding machine upper tip one end and is equipped with a plurality of and gear shaft assorted tooth.
Further, terminal surface drive tooth cover in the tooth below is equipped with first installation cavity, first installation cavity inboard matches the support bar that is equipped with sliding connection, the support bar bottom is equipped with a plurality of spring, spring bottom and first installation cavity inner wall fixed connection, terminal surface drive tooth cover is inside to be equipped with the second installation cavity in first installation cavity outside, the inside flexible piece that is equipped with swing joint of second installation cavity, the support bar outer wall is vertical to be equipped with first rack, terminal surface drive tooth cover inner wall top rotation be equipped with first rack assorted gear, flexible piece outer wall is vertical to be equipped with gear assorted second rack, first installation cavity and second installation cavity all extend to the tooth top, the tooth top is equipped with the arc in second installation cavity top, the tooth top is equipped with the arc recess between first installation cavity and second installation cavity, flexible piece outer wall is kept away from second rack one side and is equipped with a plurality of semi-flexible ball, semi-flexible ball outer wall has seted up the recess.
Further, the end face driving gear sleeve is internally provided with a third installation cavity matched with the gear, and the first installation cavity is communicated with the second installation cavity through the third installation cavity, so that the first rack, the second rack and the gear can normally move.
Further, the top of the tooth is provided with a first opening matched with the supporting strip, and the top of the tooth is provided with a second opening matched with the flexible sheet, so that the normal extension and contraction of the supporting strip and the flexible sheet are ensured.
Further, a first pull ring is arranged at the bottom center of the support bar, a second pull ring is arranged at the bottom of the flexible sheet, and the first pull ring and the second pull ring are connected through a steel cable, so that the stability of downward movement of the flexible sheet can be effectively realized; ensure the smoothness and stability of the angle movement during the position change of the steel rope.
Further, a through groove is formed in the inner wall of the end face driving tooth sleeve between the first mounting cavity and the second mounting cavity, pulleys are arranged at two ends of the inner wall of the through groove, and the steel cable is in sliding connection with the pulleys; ensure the smoothness and stability of the angle movement during the position change of the steel rope.
Further, semi-flexible ball evenly distributed is in flexible piece outer wall, and is adjacent six semi-flexible ball is regular hexagon and distributes, the centre of a circle coincidence of arc and arc recess for semi-flexible ball is better with the stability of gear shaft contact, guarantees the stability and the security of roll form flexible piece.
Further, the outer wall of the flexible sheet is obliquely arranged on the semi-flexible ball, the opening of the semi-flexible ball faces to one side far away from the second rack, the inclination angle of the semi-flexible ball is larger than thirty degrees, and the inclination angle of the semi-flexible ball is smaller than sixty degrees, so that the clamping and fixing effects on the gear shaft can be effectively enhanced, and the gear shaft is prevented from loosening.
Further, the outer wall of the lower center of the gear grinding machine is provided with a base, and the base is fixedly connected with the outer wall of the lower center of the gear grinding machine through a first flat end surface set screw.
Further, the end face driving tooth sleeve is fixedly connected with the base through a second flat end face set screw, and a threaded copper pad is arranged between the second flat end face set screw and the base.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, by arranging the end face driving tooth sleeve, the open groove shape and the teeth, reserving the gap between the teeth at the end part of the end face driving tooth sleeve and the end face of the gear shaft, then axially positioning and loading the teeth into the gear shaft by double centers, completely attaching the teeth at the end face of the end face driving tooth sleeve to the end face of the gear shaft, and fixing the axial position of the end face driving tooth sleeve; by adopting the technical scheme, the axial distance of the end face driving gear sleeve is adjusted, teeth on the end face of the end face driving gear sleeve are completely attached to the end face of the gear shaft under the action of the elastic support of the opening groove, and the contact friction force between the teeth on the end face of the end face driving gear sleeve and the end face of the gear shaft can be increased under the condition that the positioning precision of the double center is not affected; the end face drives the gear sleeve to axially move, the opening groove-shaped compression amount is adjusted, the larger the opening groove-shaped compression amount is, the larger the contact friction force between teeth on the end face of the end face driving gear sleeve and the end face of the gear shaft is, and conversely, the smaller the contact friction force is; adopt the buffering of screw thread copper pad, effective unable adjustment base and terminal surface drive tooth cover to reach the firm clamping's of elasticity pretension gear shaft purpose, guarantee machining efficiency and precision.
2. According to the invention, the support bar, the flexible sheet, the arc-shaped groove, the arc-shaped plate and the semi-flexible ball are arranged, the support bar is pressed downwards by the gear shaft, the support bar contracts towards the inside of the first installation cavity, the gear rotates clockwise in the downward movement process of the first rack, the second rack is meshed with the gear, the second rack moves upwards to drive the flexible sheet to move upwards along the second installation cavity, the flexible sheet moves upwards to extend out from the upper part of the teeth, the top end of the extending flexible sheet abuts against the inner wall of the arc-shaped plate, and as the flexible sheet continues to move upwards, the flexible sheet is bent and deformed into the arc-shaped groove along the inner wall of the arc-shaped plate to form a roll shape, the outer wall of the roll shape flexible sheet abuts against the outer wall of the gear shaft under the cooperation of the plurality of flexible sheets, the outer sides of the outer wall end parts of the gear shaft are clamped and fixed in a flexible manner, so that the clamping and fixing effect on the gear shaft can be effectively enhanced, and the normal processing of the gear shaft can be effectively prevented from being influenced by the external clamping parts in multiple directions due to the small size of the roll shape flexible sheet and the end parts of the gear shaft are mainly concentrated at the end parts of the gear shaft; in addition, the coiled flexible sheet is extruded, deformed, bent and wound under the combined action of the arc-shaped groove and the outer wall of the gear shaft, the coiled outer diameter can be tightened or loosened according to the size of the outer circle of the gear shaft, the gear shafts with different sizes can be clamped and fixed at the same time, the clamping parts are not required to be replaced, the operation is convenient and quick, and the material waste is avoided; the semi-flexible ball is positioned outside the coiled flexible sheet, the semi-flexible ball is in contact extrusion with the outer wall of the gear shaft, multi-point contact extrusion clamping fixation is formed between the coiled flexible sheet and the gear shaft, the contact connection effect of the flexible sheet and the gear shaft can be effectively enhanced, the clamping fixation effect on the gear shaft is further enhanced, the grooves on the outer wall of the semi-flexible ball are extruded and deformed to form adsorption force when in contact with the surface of the gear shaft, and the clamping fixation effect on the gear shaft can be further enhanced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side cross-sectional view of an end drive sleeve of the present invention;
FIG. 3 is an enlarged schematic view of the present invention at A in FIG. 2;
FIG. 4 is an enlarged schematic view of the present invention at B in FIG. 2;
FIG. 5 is an enlarged schematic view of the present invention at C in FIG. 2;
FIG. 6 is a top view of an end drive sleeve of the present invention;
FIG. 7 is a schematic representation of the distribution of semi-flexible spheres of the present invention;
in the figure: 1. a lower center of the gear grinding machine; 2. an upper center of the gear grinding machine; 3. the end face drives the tooth sleeve; 4. an open slot shape; 5. a gear shaft; 6. teeth; 7. a base; 8. a first flat end face set screw; 9. a second flat end face set screw; 10. a threaded copper pad; 11. a first mounting cavity; 12. a support bar; 13. a spring; 14. a second mounting cavity; 15. a flexible sheet; 16. a first rack; 17. a gear; 18. a second rack; 19. an arc-shaped groove; 20. a semi-flexible ball; 21. a groove; 22. a third mounting cavity; 23. a first opening; 24. a second opening; 25. a first pull ring; 26. a second pull ring; 27. a wire rope; 28. a through groove; 29. a pulley; 30. an arc-shaped plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer comprises a lower gear grinding machine center 1, an upper gear grinding machine center 2 and an end face driving gear sleeve 3, wherein the lower gear grinding machine center 1 is arranged below the upper gear grinding machine center 2, the end face driving gear sleeve 3 is sleeved on one end, close to the upper gear grinding machine center 2, of the outer part of the lower gear grinding machine center 1, a plurality of open grooves 4 are formed in the outer wall of the end face driving gear sleeve 3, the open grooves 4 are arranged in parallel in a staggered mode, and a plurality of teeth 6 matched with the gear shaft 5 are arranged at one end, close to the upper gear grinding machine center 2, of the outer wall of the end face driving gear sleeve 3; the outer wall of the lower center 1 of the gear grinding machine is provided with a base 7, and the base 7 is fixedly connected with the outer wall of the lower center 1 of the gear grinding machine through a first flat end surface set screw 8; the end face driving tooth sleeve 3 is fixedly connected with the base 7 through a second flat end face set screw 9, and a threaded copper pad 10 is arranged between the second flat end face set screw 9 and the base 7.
The implementation mode specifically comprises the following steps: when the gear grinding machine is used, the base 7 is sleeved into the lower center 1 of the gear grinding machine, three first flat end face set screws 8 are screwed, the first flat end face set screws 8 are in contact with the outer circle of the lower center 1 of the gear grinding machine, the axial position of the base 7 is fixed, then the end face drive gear sleeve 3 is rotationally sleeved into the lower center 1 of the gear grinding machine and is connected with the base 7 through threads, a gap between the teeth 6 at the end part of the end face drive gear sleeve 3 and the end face of the gear shaft 5 is reserved, then the gear shaft 5 is axially positioned and installed by double centers, the end face drive gear sleeve 3 is rotated to enable the end face drive gear sleeve 3 to axially move upwards, at the moment, the teeth 6 at the end face of the end face drive gear sleeve 3 are completely attached to the end face of the gear shaft 5, two second flat end face set screws 9 are screwed, and the axial position of the end face drive gear sleeve 3 is fixed; by adopting the technical scheme, the axial distance of the end face driving gear sleeve 3 is adjusted, the teeth 6 on the end face of the end face driving gear sleeve 3 are completely attached to the end face of the gear shaft 5 under the elastic supporting action of the opening groove 4, and the contact friction force between the teeth on the end face of the end face driving gear sleeve 3 and the end face of the gear shaft 5 can be increased under the condition that the positioning precision of the double tips is not affected; the end face driving gear sleeve 3 moves axially, the compression amount of the open groove shape 4 is adjusted, the larger the compression amount of the open groove shape 4 is, the larger the contact friction force between teeth 6 on the end face of the end face driving gear sleeve 3 and the end face of the gear shaft 5 is, and conversely, the smaller the contact friction force is; the base 7 and the second flat end surface set screw 9 are buffered by adopting the threaded copper pad 10, and the base 7 and the end surface driving tooth sleeve 3 are effectively fixed, so that the purpose of stably clamping the elastic pre-tightening gear shaft 5 is achieved, and the processing efficiency and the processing precision are ensured.
The utility model provides a speed reducer gear shaft terminal surface elasticity pretension anchor clamps as shown in fig. 1-7, wherein, terminal surface drive tooth cover 3 in tooth 6 below is equipped with first installation cavity 11, the inboard matching of first installation cavity 11 is equipped with sliding connection's support bar 12, support bar 12 bottom is equipped with a plurality of spring 13, spring 13 bottom and first installation cavity 11 inner wall fixed connection, terminal surface drive tooth cover 3 inside is equipped with second installation cavity 14 in first installation cavity 11 outside, second installation cavity 14 inside is equipped with swing joint's flexible piece 15, support bar 12 outer wall vertically is equipped with first rack 16, terminal surface drive tooth cover 3 inner wall top rotate be equipped with first rack 16 engaged with gear 17, flexible piece 15 outer wall vertically be equipped with gear 17 engaged with second rack 18, first installation cavity 11 and second installation cavity 14 all extend to tooth 6 top, tooth 6 top is equipped with arc 30 in second installation cavity 14 top, tooth 6 top is equipped with flexible piece 20 in first installation cavity 11 and second installation cavity 14 outside, the arc-shaped groove 20 is equipped with a plurality of flexible balls 20, the arc-shaped groove is kept away from to one side of the flexible piece 20.
The end face driving gear sleeve 3 is internally provided with a third installation cavity 22 matched with the gear 17, the first installation cavity 11 is communicated with the second installation cavity 14 through the third installation cavity 22, the third installation cavity 22 provides installation and movement space for the gear 17, and normal movement of the first rack 16, the second rack 18 and the gear 17 is guaranteed.
The top of the tooth 6 is provided with a first opening 23 matched with the supporting strip 12, the top of the tooth 6 is provided with a second opening 24 matched with the flexible sheet 15, the first opening 23 provides a stretching and shrinking space for the supporting strip 12, the supporting strip 12 is ensured to stretch and shrink normally from the inside of the first mounting cavity 11, the second opening 24 provides a stretching and shrinking space for the flexible sheet 15, and the flexible sheet 15 is ensured to stretch and shrink normally from the inside of the second mounting cavity 14.
A first pull ring 25 is arranged at the bottom center of the support bar 12, a second pull ring 26 is arranged at the bottom of the flexible sheet 15, and the first pull ring 25 and the second pull ring 26 are connected through a steel cable 27; the end face driving gear sleeve 3 is provided with a through groove 28 between the first mounting cavity 11 and the second mounting cavity 14, pulleys 29 are arranged at two ends of the inner wall of the through groove 28, the steel cable 27 is in sliding connection with the pulleys 29, the first pull ring 25, the second pull ring 26 and the steel cable 27 are used for connecting the support bar 12 with the flexible sheet 15, the flexible sheet 15 moves upwards in the downward movement process of the support bar 12, the first pull ring 25 moves downwards along with the support bar 12, the second pull ring 26 moves upwards along with the flexible sheet 15, the steel cable 27 is tensioned, the support bar 12 moves upwards in the rebound process of the spring 13, the flexible sheet 15 moves downwards, and meanwhile, the first pull ring 25 pulls the second pull ring 26 downwards through the steel cable 27, so that the stability of the downward movement of the flexible sheet 15 driven by the second pull ring 26 is ensured; the pulleys 29 rollingly support the steel ropes 27 at both ends of the through grooves 28, and ensure the smoothness and stability of the angular movement when the positions of the steel ropes 27 are changed.
The semi-flexible balls 20 are evenly distributed on the outer wall of the flexible sheet 15, six adjacent semi-flexible balls 20 are distributed in a regular hexagon mode, the semi-flexible balls 20 distributed in a regular hexagon mode are in contact with the outer wall of the gear shaft 5, any three adjacent semi-flexible balls 20 can form an isosceles triangle, the stability of the semi-flexible balls 20 in contact with the gear shaft 5 is better, the safety performance of the gear shaft 5 is further enhanced, the circle centers of the arc-shaped plate 30 and the arc-shaped groove 19 are coincident, the flexible sheet 15 after being bent and deformed through the arc-shaped plate 30 can enter the inner side of the arc-shaped groove 19 rapidly, and stability and safety of the coiled flexible sheet 15 are guaranteed.
The outer wall of the flexible sheet 15 is obliquely arranged on the semi-flexible ball 20, the opening of the semi-flexible ball 20 faces towards one side far away from the second rack 18, the inclination angle of the semi-flexible ball 20 is larger than thirty degrees, and the inclination angle of the semi-flexible ball 20 is smaller than sixty degrees, so that when the flexible sheet 15 and the arc plate 30 are in offset bending deformation, the arc surface of the semi-flexible ball 20 is contacted with the arc plate 30, the flexible sheet 15 is guaranteed to enter the inner side of the arc groove 19 rapidly after bending deformation, the contact between the semi-flexible ball 20 and the arc plate 30 is avoided to obstruct the normal movement of the flexible sheet 15, meanwhile, when the position of the flexible sheet 15 does not displace, the groove 21 surface of the outer wall of the semi-flexible ball 20, which is set by the angle, is tightly attached to the gear shaft 5, is obliquely upwards distributed, the clamping and fixing effects on the gear shaft 5 are further enhanced, and the gear shaft 5 is prevented from being loosened.
The implementation mode specifically comprises the following steps: when in use, through the arrangement of the support bar 12, the flexible sheet 15, the first rack 16, the gear 17, the second rack 18, the arc-shaped groove 19, the arc-shaped plate 30 and the semi-flexible ball 20, when the gear shaft 5 is in contact with the end face driving gear sleeve 3, the gear shaft 5 presses the support bar 12 downwards, the support bar 12 is contracted towards the inside of the first mounting cavity 11, the spring 13 is compressed, the first rack 16 moves downwards along with the support bar 12, the first rack 16 is meshed with the gear 17, the gear 17 performs clockwise rotation in the downward movement process of the first rack 16, the second rack 18 is meshed with the gear 17, the second rack 18 moves upwards in the clockwise rotation process of the gear 17, the flexible sheet 15 is driven to move upwards along the second mounting cavity 14, the flexible sheet 15 passes through the teeth 6 in the upward movement process of the flexible sheet 15 extends out from the upper part of the teeth 6, the top end of the extending flexible sheet 15 is propped against the inner wall of the arc-shaped plate 30, along with the upward movement of the flexible sheet 15, the flexible sheet 15 is bent along the inner wall of the arc-shaped plate 30, the flexible sheet 15 is bent into an arc shape and then enters the inside of the arc-shaped groove 19, the outer wall of the flexible sheet 15 is propped against the outer wall of the gear shaft 5, the end part of the flexible sheet 15 enters the inside of the arc-shaped groove 19 and is bent at the inner side of the arc-shaped groove 19 to form a roll shape, the outer wall of the roll-shaped flexible sheet 15 is propped against the outer wall of the gear shaft 5 at the top of the teeth 6, the outer sides of the outer wall of the gear shaft 5 are flexibly clamped and fixed in multiple directions under the cooperation of the flexible sheets 15, the clamping and fixing effect on the gear shaft 5 can be effectively enhanced, and the size of the roll-shaped flexible sheet 15 is smaller and is mainly concentrated at the end part of the gear shaft 5, so that the influence on the normal processing of the grinding wheel due to the external clamping parts of the gear shaft 5 can be effectively avoided; in addition, the coiled flexible sheet 15 is extruded, deformed, bent and wound under the combined action of the arc-shaped groove 19 and the outer wall of the gear shaft 5, the coiled outer diameter can be tightened or loosened according to the size of the outer circle of the gear shaft 5, the gear shafts 5 with different sizes can be clamped and fixed at the same time, clamping parts are not required to be replaced, the operation is convenient and quick, and the waste of materials is avoided; after the flexible sheet 15 is curled, the semi-flexible balls 20 are positioned outside the rolled flexible sheet 15, the semi-flexible balls 20 are in contact extrusion with the outer wall of the gear shaft 5, multi-point contact extrusion clamping fixation is formed between the rolled flexible sheet 15 and the gear shaft 5, so that the contact connection effect of the flexible sheet 15 and the gear shaft 5 can be effectively enhanced, the clamping fixation effect of the gear shaft 5 is further enhanced, the grooves 21 on the outer wall of the semi-flexible balls 20 are extruded and deformed into adsorption force when in contact with the surface of the gear shaft 5, and the clamping fixation effect of the gear shaft 5 can be further enhanced; after the gear shaft 5 is machined, the distance between the lower center 1 of the gear grinding machine and the upper center 2 of the gear grinding machine is increased, clamping of the two centers of the gear shaft 5 is relieved, the spring 13 rebounds to push the support bar 12 outwards, the support bar 12 moves outwards along the first mounting cavity 11, the first rack 16 moves upwards opposite to the support bar 12, the first rack 16 drives the gear 17 to rotate anticlockwise, the gear 17 rotates anticlockwise to drive the second rack 18 to move downwards, the flexible sheet 15 contracts to the inside of the second mounting cavity 14 along with the downward movement of the second rack 18, the flexible sheet 15 coiled outside the gear shaft 5 expands along with gradually contracting to the inside of the second mounting cavity 14, and finally the flexible sheet 15 completely contracts to enter the inside of the second mounting cavity 14, and clamping locking of the outer circle of the gear shaft 5 is relieved.
The working principle of the invention is as follows:
referring to the attached figure 1 of the specification, by arranging the end face driving tooth sleeve 3, the open groove shape 4 and the teeth 6, by adopting the technical scheme, the axial distance of the end face driving tooth sleeve 3 is adjusted, the teeth 6 on the end face of the end face driving tooth sleeve 3 are completely attached to the end face of the gear shaft 5 under the elastic supporting action of the open groove shape 4, and the contact friction force between the teeth on the end face of the end face driving tooth sleeve 3 and the end face of the gear shaft 5 can be increased under the condition that the positioning precision of double tips is not affected; the end face drives the tooth sleeve 3 to axially move, the compression amount of the open groove shape 4 is regulated, the larger the compression amount of the open groove shape 4 is, the larger the contact friction force between the teeth 6 on the end face of the end face driving tooth sleeve 3 and the end face of the gear shaft 5 is, and the smaller the contact friction force is, the purpose of stably clamping the elastic pre-tightening gear shaft 5 can be achieved, and the machining efficiency and precision are ensured;
referring to fig. 1-7 of the specification, by arranging the support bar 12, the flexible sheet 15, the first rack 16, the gear 17, the second rack 18, the arc-shaped groove 19, the arc-shaped plate 30 and the semi-flexible ball 20, the support bar 12 is pressed downwards by the gear shaft 5, the flexible sheet 15 moves upwards to bend into a roll shape, the outer wall of the roll-shaped flexible sheet 15 is propped against the outer wall of the gear shaft 5 at the top of the teeth 6, and the outer sides of the outer wall end parts of the gear shaft 5 are flexibly clamped and fixed in multiple directions under the cooperation of the plurality of roll-shaped flexible sheets 15, so that the clamping and fixing effect on the gear shaft 5 can be effectively enhanced, and the size of the roll-shaped flexible sheet 15 is smaller and is mainly concentrated at the end parts of the gear shaft 5, so that the influence on the normal processing of the grinding wheel caused by external clamping parts of the gear shaft 5 can be effectively avoided; the outer diameter of the flexible sheet 15 can be tightened or loosened along with the outer circle size of the gear shaft 5, the gear shafts 5 with different sizes can be clamped and fixed simultaneously, clamping parts are not required to be replaced, the operation is convenient and fast, and the material waste is avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a gear shaft terminal surface elasticity pretension anchor clamps of speed reducer, includes gear grinding machine bottom end (1), gear grinding machine top end (2) and terminal surface drive tooth cover (3), its characterized in that: the lower center (1) of the gear grinding machine is arranged below the upper center (2) of the gear grinding machine, the end face driving gear sleeve (3) is sleeved outside the lower center (1) of the gear grinding machine and is close to one end of the upper center (2) of the gear grinding machine, a plurality of open grooves (4) are formed in the outer wall of the end face driving gear sleeve (3), the open grooves (4) are arranged in parallel in a staggered mode, and a plurality of teeth (6) matched with the gear shaft (5) are formed in the outer wall of the end face driving gear sleeve (3) and close to one end of the upper center (2) of the gear grinding machine; the utility model discloses a tooth (6) of tooth, including tooth (6) and tooth cover, terminal surface drive tooth cover (3) are equipped with first installation cavity (11) in tooth (6) below, the inboard matching of first installation cavity (11) is equipped with support bar (12) of sliding connection, support bar (12) bottom is equipped with a plurality of spring (13), spring (13) bottom and first installation cavity (11) inner wall fixed connection, terminal surface drive tooth cover (3) are inside to be equipped with second installation cavity (14) in first installation cavity (11) outside, second installation cavity (14) inside is equipped with swing joint's flexible piece (15), support bar (12) outer wall is vertical to be equipped with first rack (16), terminal surface drive tooth cover (3) inner wall top rotation be equipped with first rack (16) engaged with gear (17), flexible piece (15) outer wall is vertical be equipped with gear (17) engaged with second rack (18), first installation cavity (11) and second installation cavity (14) all extend to tooth (6) top, tooth (6) top (14) are equipped with flexible piece (16) top between tooth (14) and arc-shaped plate (14), a plurality of semi-flexible balls (20) are arranged on one side, far away from the second rack (18), of the outer wall of the flexible sheet (15), and grooves (21) are formed in the outer wall of the semi-flexible balls (20).
2. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the end face driving gear sleeve (3) is internally provided with a third installation cavity (22) matched with the gear (17), and the first installation cavity (11) is communicated with the second installation cavity (14) through the third installation cavity (22).
3. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the top of the tooth (6) is provided with a first opening (23) matched with the supporting bar (12), and the top of the tooth (6) is provided with a second opening (24) matched with the flexible sheet (15).
4. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the support bar (12) bottom center is equipped with first pull ring (25), flexible piece (15) bottom is equipped with second pull ring (26), connect through cable wire (27) between first pull ring (25) and the second pull ring (26).
5. The elastic pre-tightening clamp for the end face of the gear shaft of the speed reducer, according to claim 4, is characterized in that: the end face driving gear sleeve is characterized in that a through groove (28) is formed in the inner wall of the end face driving gear sleeve (3) between the first mounting cavity (11) and the second mounting cavity (14), pulleys (29) are arranged at two ends of the inner wall of the through groove (28), and the steel cable (27) is in sliding connection with the pulleys (29).
6. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the semi-flexible balls (20) are uniformly distributed on the outer wall of the flexible sheet (15), six adjacent semi-flexible balls (20) are distributed in a regular hexagon, and the circle centers of the arc-shaped plate (30) and the arc-shaped groove (19) are coincident.
7. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the semi-flexible ball (20) is obliquely arranged on the outer wall of the flexible sheet (15), the opening of the semi-flexible ball (20) faces to one side far away from the second rack (18), the inclination angle of the semi-flexible ball (20) is larger than thirty degrees, and the inclination angle of the semi-flexible ball (20) is smaller than sixty degrees.
8. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the outer wall of the lower center (1) of the gear grinding machine is provided with a base (7), and the base (7) is fixedly connected with the outer wall of the lower center (1) of the gear grinding machine through a first flat end surface set screw (8).
9. The elastic pre-tightening clamp for the end face of a gear shaft of a speed reducer according to claim 1, wherein: the end face driving tooth sleeve (3) is fixedly connected with the base (7) through a second flat end face set screw (9), and a threaded copper pad (10) is arranged between the second flat end face set screw (9) and the base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210159708.6A CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210159708.6A CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
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| Publication Number | Publication Date |
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| CN114473080A CN114473080A (en) | 2022-05-13 |
| CN114473080B true CN114473080B (en) | 2023-05-26 |
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| CN202210159708.6A Active CN114473080B (en) | 2022-02-22 | 2022-02-22 | Elastic pre-tightening clamp for gear shaft end face of speed reducer |
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| CN115570158A (en) * | 2022-09-27 | 2023-01-06 | 中国兵器装备集团自动化研究所有限公司 | Tip structure capable of quickly replacing end teeth and machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202010826U (en) * | 2011-03-22 | 2011-10-19 | 浙江双环传动机械股份有限公司 | Internal expanding type gear hobbing fixture |
| CN203062008U (en) * | 2012-12-27 | 2013-07-17 | 重庆机床(集团)有限责任公司 | Manual gear hob jig gland |
| CN204366068U (en) * | 2014-12-12 | 2015-06-03 | 四川工程职业技术学院 | Floating type end-driver center |
| CN204470729U (en) * | 2015-02-15 | 2015-07-15 | 浙江午马减速机有限公司 | A kind of worm gear hobbing fixture |
| CN104759705A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Gear hobbing fixture |
| CN104669293B (en) * | 2015-03-28 | 2016-05-18 | 苗润琪 | A kind of clipping inflation catching hand |
| CN105312688A (en) * | 2015-12-01 | 2016-02-10 | 重庆蓝黛动力传动机械股份有限公司 | Cone grinding fixture |
| CN105344893A (en) * | 2015-12-19 | 2016-02-24 | 李加振 | Manufacturing device of reinforcing steel frame for power construction |
| CN106513869A (en) * | 2016-12-26 | 2017-03-22 | 无锡威孚中意齿轮有限责任公司 | Gear grinding fixture adopting end surface drive for small gear shaft |
| CN209303845U (en) * | 2018-11-30 | 2019-08-27 | 重庆金泰齿轮有限公司 | Tooth shaft gear grinding clamp |
| CN109911287B (en) * | 2019-04-02 | 2021-03-05 | 徐州盛斗士生物科技有限公司 | Yacon is adopted and is dug harmless separation promotion formula thin strip car of anti-sticking type |
| CN111975133B (en) * | 2020-06-30 | 2022-01-21 | 东风汽车零部件(集团)有限公司刃量具分公司 | Gear grinding clamp for bevel hole gear |
| CN113523450B (en) * | 2021-07-28 | 2022-06-21 | 长春师范大学 | Fixing device for sector gear machining and fixing method thereof |
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