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CN-224209761-U - Be applied to combination formula anchor clamps of gearbox gear processing

CN224209761UCN 224209761 UCN224209761 UCN 224209761UCN-224209761-U

Abstract

The utility model discloses a combined clamp applied to gearbox gear machining, and relates to the field of expansion sleeve type clamps. The utility model comprises a mounting disc and a taper mandrel, wherein the inner side of the taper mandrel is penetrated and movably provided with an expansion sleeve blind rivet, the top of the expansion sleeve blind rivet is fixedly provided with a pressure plate, the outer side of the taper mandrel is sleeved with an expansion sleeve, the pressure plate is buckled with the top surface of the expansion sleeve through a buckling mechanism, after the machining is finished through the buckling mechanism, an external driving part releases tension and can pull the top of the expansion sleeve to move, the movement realizes the rapid reduction of the pressure between the expansion sleeve and the taper mandrel, and the design of buckling teeth allows relative movement, meanwhile, the expansion sleeve can be rapidly reset under the self elastic action, and the resetting process reduces the pressure and friction force between the expansion sleeve and the taper mandrel, so that the resetting rate of the expansion sleeve is improved, and the workpiece taking process after the machining is smoother and more efficient.

Inventors

  • HE JIAN

Assignees

  • 重庆南雁实业集团龙剑机械制造有限公司

Dates

Publication Date
20260508
Application Date
20250423

Claims (6)

  1. 1. The combined clamp for machining the gearbox gear is characterized by comprising a mounting disc (1) and a taper mandrel (2), wherein the inner side of the taper mandrel (2) is penetrated and movably provided with an expansion sleeve blind rivet (4), the top of the expansion sleeve blind rivet (4) is fixedly provided with a pressure plate (5), the outer side of the taper mandrel (2) is sleeved with an expansion sleeve (3), and the pressure plate (5) is in buckling connection with the top surface of the expansion sleeve (3) through a buckling mechanism (6); the buckling mechanism (6) comprises a plurality of first buckling teeth (601) and second buckling teeth (602), the first buckling teeth (601) are fixed on the lower surface of the pressure plate (5), and the second buckling teeth (602) are fixed above the inner wall of the expansion sleeve (3).
  2. 2. The combined clamp for machining gears of gearboxes according to claim 1, wherein the first buckling teeth (601) and the second buckling teeth (602) are buckled, and the first buckling teeth (601) are in an L-shaped structure.
  3. 3. The combined clamp for machining the gearbox gear according to claim 1, wherein the first buckling teeth (601) and the second buckling teeth (602) are distributed in an equidistant annular mode, and the first buckling teeth (601) and the second buckling teeth (602) are made of hard metal.
  4. 4. The sectional fixture for gear processing of a transmission according to claim 1, wherein a gap (603) is formed between adjacent first fastening teeth (601), the size of the gap (603) is larger than the size of the second fastening teeth (602), and the second fastening teeth (602) can be fastened to the inner side of the first fastening teeth (601) through the gap (603).
  5. 5. The combined clamp for processing the gearbox gear according to claim 1, wherein the bottom end of the expansion sleeve blind rivet (4) is in threaded installation with an external driving part, the expansion sleeve (3) is elastically connected by a plurality of taper blocks, and the adjacent taper blocks are relatively movable.
  6. 6. The combined clamp for machining the gearbox gear according to claim 1 is characterized in that an inner hexagonal hole (7) is formed above the central axis of the pressure plate (5), and a plurality of mounting holes (8) are formed in the mounting plate (1).

Description

Be applied to combination formula anchor clamps of gearbox gear processing Technical Field The utility model relates to the field of expansion sleeve type clamps, in particular to a combined clamp applied to gearbox gear machining. Background The expansion sleeve type clamp plays an important role in the field of gear machining of gearboxes, realizes accurate positioning and clamping of workpieces through the clamping mechanism in the expansion sleeve, ensures high precision and stability of gear machining, has the advantages of being high in adaptability, easy and convenient to operate, improving machining efficiency and the like, and can meet machining requirements of gears of different specifications. The existing expansion sleeve type clamp is widely applied in the gear machining process of a gearbox, an inner hole of the gear is clamped by an inner support, but a problem exists in the practical use process, and particularly, the use principle of the traditional expansion sleeve type clamp is that the inner support operation of the gear is realized by using the outer expansion of a deformable expansion sleeve, after machining is finished, the resetting efficiency of the expansion sleeve determines the time point when the gear can be taken down, the traditional expansion sleeve is reset, so that the expansion sleeve has larger friction force between the pressed mandrel and the tapered mandrel at the inner side, the resetting speed of the expansion sleeve is slower due to the existence of the larger friction force, the machining efficiency of the gear is affected, and the use convenience of the expansion sleeve type clamp is reduced. Disclosure of utility model Based on the problems, the utility model aims to provide a combined clamp applied to gearbox gear machining, so as to solve the technical problem that the expanding sleeve resetting efficiency is low in a traditional expanding sleeve clamp. The combined clamp for processing the gearbox gear comprises a mounting disc and a taper mandrel, wherein the inner side of the taper mandrel is penetrated and movably provided with an expansion sleeve blind rivet, the top of the expansion sleeve blind rivet is fixedly provided with a pressure plate, the outer side of the taper mandrel is sleeved with an expansion sleeve, and the pressure plate is in buckling connection with the top surface of the expansion sleeve through a buckling mechanism; The buckling mechanism comprises a plurality of first buckling teeth and second buckling teeth, the first buckling teeth are fixed on the lower surface of the pressure plate, and the second buckling teeth are fixed above the inner wall of the expansion sleeve. Through adopting above-mentioned technical scheme, through the cooperation use of mounting disc and tapering dabber, realized the steady support and the location to gearbox gear, simultaneously, the inboard movable mounting of tapering dabber rises cover blind rivet and top fixed mounting's pressure disk, the cover that rises that the cooperation tapering dabber outside was overlapped is established, has formed compact structure's clamping mechanism, pressure disk and rise and overlap between the cover through fastening mechanism looks lock joint, not only guaranteed the effective transmission of power, still make the structure of anchor clamps compacter, reasonable. Further, the first buckling teeth and the second buckling teeth are buckled, and the first buckling teeth are of an L-shaped structure. Through adopting above-mentioned technical scheme, realized the effective transmission of close connection and the power between pressure disk and the cover that rises, simultaneously, first lock joint tooth is "L" shape structure, and this special shape has not only strengthened the stability and the fastness of lock joint. Further, the first fastening teeth and the second fastening teeth are distributed in an equidistant annular mode, and the first fastening teeth and the second fastening teeth are made of hard metal. By adopting the technical scheme, the clamp is more uniform when stressed, the problem of local stress concentration is avoided, and the bearing capacity and the service life of the clamp are improved. Further, a gap is formed between the adjacent first fastening teeth, the size of the gap is larger than that of the second fastening teeth, and the second fastening teeth can be fastened to the inner sides of the first fastening teeth through the gap. Through adopting above-mentioned technical scheme for the second lock joint tooth can be relaxed through clearance visit and lock joint to the inboard of first lock joint tooth, has realized lock joint mechanism's flexibility and adjustability. Further, the bottom end of the tension sleeve blind rivet is in threaded installation with an external driving part, the tension sleeve is elastically connected by a plurality of taper blocks, and the adjacent taper blocks are relatively movable. Through adopting above-