CN224209761U - Be applied to combination formula anchor clamps of gearbox gear processing - Google Patents

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.

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-mentioned technical scheme for the installation of anchor clamps and dismantlement convenient and fast more have improved the flexibility and the efficiency of course of working, simultaneously, rise the cover by a plurality of tapering piece elastic connection, and relative activity between the adjacent tapering piece, this structure makes and rises the cover and can evenly expand when receiving the tensile force effect, closely laminate the hole of gearbox gear, has realized the tight effect of clamp of high accuracy.

Further, an inner hexagonal hole is formed above the central axis of the pressure plate, and a plurality of mounting holes are formed in the mounting plate.

Through adopting above-mentioned technical scheme, the hexagonal hole makes when dismantling or fixed pressure disk, rising cover blind rivet needs, can use tools such as allen wrench to carry out light operation, has improved the convenience and the practicality of anchor clamps.

In summary, the utility model has the following advantages:

According to the utility model, after the processing is completed through the buckling mechanism, the external driving part releases the tension force, the process is firstly transmitted to the pressure plate through the tension sleeve blind rivet, and the pressure plate can pull the top of the tension sleeve to move when releasing the tension force due to the buckling arrangement of the first buckling teeth and the second buckling teeth, so that the rapid reduction of the pressure between the tension sleeve and the taper mandrel is realized due to the movement, and meanwhile, the tension sleeve is elastically connected by a plurality of taper blocks due to the design of the buckling teeth, so that the tension sleeve can be quickly reset under the self elastic action after the pressure is reduced, and the resetting process reduces the pressure and friction force between the tension sleeve and the taper mandrel, so that the resetting rate of the tension sleeve is improved, and the workpiece taking process after the processing is completed is smoother and more efficient.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the structure of the tapered mandrel of the present utility model;

FIG. 3 is a schematic view of the bottom view of the tension sleeve blind rivet of the present utility model;

fig. 4 is a schematic structural view of the expansion sleeve of the present utility model.

The device comprises a mounting disc 1, a taper mandrel 2, a tension sleeve 3, a tension sleeve pull nail 4, a pressure plate 5, a fastening mechanism 6, a first fastening tooth 601, a second fastening tooth 602, a gap 603, a hexagonal hole 7 and a mounting hole 8.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the present embodiment

The combined fixture for machining the gear of the gearbox comprises 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 fastening mechanism 6 comprises a plurality of first fastening teeth 601 and second fastening teeth 602, the first fastening teeth 601 are fixed on the lower surface of the pressure plate 5, the second fastening teeth 602 are fixed on the upper portion of the inner wall of the expansion sleeve 3, stable support and positioning of a gear of the gearbox are achieved through the cooperation of the mounting plate 1 and the taper mandrel 2, meanwhile, the tension sleeve blind rivet 4 movably mounted on the inner side of the taper mandrel 2 and the pressure plate 5 fixedly mounted on the top are matched with the expansion sleeve 3 sleeved on the outer side of the taper mandrel 2, a clamping mechanism with a compact structure is formed, the pressure plate 5 and the expansion sleeve 3 are fastened through the fastening mechanism 6, effective transmission of force is guaranteed, the structure of the clamp is compact and reasonable, the first fastening teeth 601 and the second fastening teeth 602 which are included by the fastening mechanism 6 are fixed on the pressure plate 5 and the expansion sleeve 3 respectively, stability and reliability of the clamp are further enhanced, and accuracy and efficiency in a machining process are guaranteed.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the first fastening teeth 601 and the second fastening teeth 602 are fastened, the first fastening teeth 601 are of an L-shaped structure, so that tight connection and effective force transmission between the pressure plate 5 and the expansion sleeve 3 are realized, meanwhile, the first fastening teeth 601 are of an L-shaped structure, stability and firmness of fastening are enhanced due to the special shape, and when tension is released, the pressure plate 5 can more easily pull the top of the expansion sleeve 3 to move, thereby realizing rapid pressure reduction between the expansion sleeve 3 and the taper mandrel 2, improving the resetting rate of the expansion sleeve 3, and further improving the processing efficiency.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a plurality of first fastening teeth 601 and second fastening teeth 602 are distributed in an equidistant annular manner, and the materials of the first fastening teeth 601 and the second fastening teeth 602 are hard metals, so that the clamp is more uniform when being stressed, the problem of local stress concentration is avoided, the bearing capacity and the service life of the clamp are improved, meanwhile, the materials of the first fastening teeth 601 and the second fastening teeth 602 are hard metals, the strength and the hardness of the fastening teeth are ensured, the fastening is more reliable, deformation or damage is not easy to occur, and the stability and the durability of the clamp are further improved.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a gap 603 is formed between adjacent first fastening teeth 601, the size of the gap 603 is larger than that of the second fastening teeth 602, and the second fastening teeth 602 can be fastened to the inner sides of the first fastening teeth 601 through the gap 603, so that the second fastening teeth 602 can be easily accessed and fastened to the inner sides of the first fastening teeth 601 through the gap 603, flexibility and adjustability of the fastening mechanism are achieved, meanwhile, the size of the gap 603 is larger than that of the second fastening teeth 602, smoothness of fastening is guaranteed, fastening difficulty or damage caused by mismatching of the size is avoided, and usability and reliability of the clamp are further improved.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the bottom end of the tension sleeve blind rivet 4 is in threaded installation with an external driving part, the tension sleeve 3 is elastically connected by a plurality of taper blocks, and the adjacent taper blocks are relatively movable, so that the installation and the disassembly of the clamp are more convenient and quick, the flexibility and the efficiency of the machining process are improved, meanwhile, the tension sleeve 3 is elastically connected by a plurality of taper blocks, and the adjacent taper blocks are relatively movable, the tension sleeve 3 can be uniformly expanded when being acted by a tensile force by virtue of the structure, the tension sleeve tightly clings to the inner hole of a gearbox gear, the high-precision clamping effect is realized, after the tensile force is released, the tension sleeve 3 can be quickly reset under the self elastic action, the pressure and the friction force between the tension sleeve and the taper mandrel 2 are reduced, and the service performance and the service life of the clamp are further improved.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the inner hexagonal hole 7 is formed above the central axis of the pressure plate 5, and the mounting plate 1 is provided with a plurality of mounting holes 8, so that when the pressure plate 5 and the expanding sleeve blind rivet 4 are required to be disassembled or fixed, tools such as an inner hexagonal wrench can be used for easy operation, the convenience and the practicability of the clamp are improved, and meanwhile, the mounting plate 1 is provided with a plurality of mounting holes 8, so that the clamp can be conveniently mounted on various processing equipment, the requirements of different processing scenes are met, the universality and the adaptability of the clamp are enhanced, and the stability and the efficiency of the processing process are improved.

The embodiment has the implementation principle that a mounting plate 1 is used as a basic part to be fixed on processing equipment, a taper mandrel 2 is mounted on the mounting plate 1 and used for positioning and supporting a gearbox gear to be processed, an expansion sleeve 3 is sleeved on the outer side of the taper mandrel 2, when an external driving part is connected with the bottom end of an expansion sleeve blind rivet 4 through threads and applies tension, a pressure plate 5 is subjected to tension and transmits force to the expansion sleeve 3 through a fastening mechanism 6, a taper block of the expansion sleeve 3 is expanded outwards, so that the gearbox gear is clamped, after processing is completed, the external driving part releases the tension, meanwhile, the top of the expansion sleeve 3 is pulled by the pressure plate 5 to move due to the fastening arrangement of a first fastening tooth 601 and a second fastening tooth 602, so that the rapid reduction of the pressure between the expansion sleeve 3 and the taper mandrel 2 can be realized, then the expansion sleeve 3 is reset under the self-elasticity, the influence of the pressure and friction force between the expansion sleeve 3 and the taper mandrel 2 on the reset rate of the expansion sleeve 3 is reduced, and then the processed gearbox gear can be taken down.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims (6)

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. 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. 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. 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. 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. 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).