CN117817308B - Outer cam gear pressure equipment frock - Google Patents

Abstract

The invention relates to the technical field of mechanical assembly, and particularly provides an outer cam gear press-fitting tool, which comprises the following components: the device comprises a base, a fixing mechanism, a press-fit alignment mechanism and a positioning mechanism. According to the outer cam and gear press-fitting tool designed by the invention, through the cooperation of the fixing mechanism, the positioning mechanism and the press-fitting alignment mechanism, the outer spline on the outer cam and the inner spline on the gear can be rapidly positioned, the damage of the outer cam and the gear in the alignment process can be reduced, the outer cam and the gear can be press-fitted and assembled, the functions of precise alignment and rapid press-fitting integrated automation of the outer cam and the gear are realized, and the press-fitting efficiency and the automation degree of the outer cam and the gear are greatly improved.

Description

Outer cam gear pressure equipment frock

Technical Field

The invention relates to the technical field of mechanical assembly, in particular to a tool device capable of enabling tooth shapes of inner and outer splines to be suspended and accurately meshed when an outer cam assembly of an automatic differential lock is assembled, and particularly provides an outer cam press-fitting tool.

Background

The cam gear ring structure shown in fig. 8 is used for an automatic differential lock in mechanical equipment and has the characteristics of multifunction and higher performance. The cam gear ring structure unit body adopts a split structure and is formed by combining an outer cam structure and a gear structure; the outer cam is provided with an outer spline, the gear is provided with an inner spline, and the outer cam is accurately meshed with the tooth shapes of the inner spline and the outer spline on the gear in a suspended state during assembly, and the axial resistance generated during interference fit of the hole and the shaft is overcome; there is no tooling device in the prior art that can meet these requirements at the same time, so there is a need for an external cam press-fitting tooling.

Disclosure of Invention

In view of the above problems, the embodiment of the application provides an external cam press-fitting tool to solve the technical problems in the related art.

In order to achieve the above object, the embodiment of the present application provides the following technical solutions: an external cam press-fit tooling, comprising: the base is provided with a hydraulic cylinder through a fixing frame, the telescopic end of the hydraulic cylinder is connected with a positioning seat, the top of the base is rotationally connected with a rotary platform, the positioning seat is positioned right above the rotary platform and concentric with the rotary platform, the rotary platform is provided with a fixing mechanism for aligning and fixing an external cam, and the external cam is provided with an external spline.

The positioning seat is provided with a positioning mechanism for positioning and fixing the gear, and the gear is provided with an internal spline; the base is provided with a press-fit alignment mechanism.

The fixing mechanism comprises a ring-shaped placing groove which is formed in the top of the rotary platform, a buffer ring plate is arranged at the bottom of the placing groove through a plurality of buffer springs which are uniformly distributed along the circumferential direction of the placing groove, a supporting ring which supports the buffer ring plate is arranged at the bottom of the placing groove, and an inner supporting group which is used for carrying out inner supporting positioning and fixing on an outer cam is arranged at the middle of the rotary platform.

The positioning mechanism comprises a storage groove which is arranged at the bottom of the positioning seat and concentric with the positioning seat, a positioning shaft sleeve which slides up and down is connected in the storage groove, a pushing spring is arranged between the positioning shaft sleeve and the storage groove, electromagnets which are uniformly distributed along the circumferential direction of the positioning shaft sleeve are arranged at the bottom of the positioning seat, a buffer bearing group is arranged on the outer wall of the toothed sleeve close to the upper end of the toothed sleeve, and a rotary limiting group is arranged on the side wall of the positioning shaft sleeve.

The press mounting alignment mechanism comprises a supplementing seat arranged on the side wall of the base, a rotating seat is rotationally connected to the supplementing seat, a limiting sleeve which slides up and down is connected to the rotating seat, an alignment sleeve which can rotate along the circumferential direction of the limiting sleeve and slide up and down along the axial direction of the limiting sleeve is inserted in the limiting sleeve through a rotation limiting group, a limiting ring positioned above the limiting sleeve is fixedly arranged on the outer side wall of the alignment sleeve, the alignment sleeve is of a cylindrical structure, alignment splines I are arranged on the inner wall of the lower end, alignment splines II are arranged on the upper end of the inner wall of the lower end, the alignment splines I are identical to the tooth shapes of the internal splines, the alignment splines II are identical to the tooth shapes of the external splines, and a buffering antifriction group is arranged on the outer wall of the alignment sleeve, close to the lower end.

In a possible implementation manner, the inner support group comprises a mounting groove formed in the middle of the rotary platform, an air cylinder is arranged in the mounting groove, a lifting disc with a trapezoid cross section is arranged at the telescopic end of the air cylinder, a plurality of spring grooves which are uniformly distributed along the circumferential direction of the placing groove are formed in the side wall of the placing groove, a supporting rod which penetrates through the mounting groove in a sliding manner is connected in the spring groove, an inner arc supporting plate is arranged at one end of the supporting rod, a reset spring sleeved on the supporting rod is arranged between the inner arc supporting plate and the spring groove, and one end of the supporting rod located in the mounting groove is abutted against the side wall of the lifting disc.

In one possible implementation mode, the buffer bearing group comprises a supporting seat arranged on the side wall of the tooth sleeve, an annular groove is formed in the supporting seat, a bearing plate is connected to the annular groove through a plurality of buffer springs II which are uniformly distributed along the circumferential direction of the annular groove, and a plurality of antifriction balls I which are uniformly distributed along the circumferential direction of the annular groove are connected to the bearing plate in a rolling mode.

In one possible implementation manner, the rotary limiting group comprises a plurality of limiting grooves which are formed in the side wall of the positioning shaft sleeve and are uniformly distributed along the circumferential direction of the positioning shaft sleeve, a pushing limiting arc plate is arranged in each limiting groove through a spring rod, and the lower end of the pushing limiting arc plate is arc-shaped.

In a possible implementation manner, the buffering antifriction group comprises a supplementary ring seat arranged on the outer side wall of the lower end of the toothed sleeve, a containing groove is formed in the bottom of the supplementary ring seat, a movable ring sliding up and down is connected in the containing groove, the movable ring is connected with the containing groove through three phases of buffering springs uniformly distributed along the circumferential direction of the movable ring, and antifriction balls II are arranged at the bottom of the movable ring.

In one possible implementation mode, the rotation limiting group comprises a rotation ring which is rotationally connected in a limiting sleeve, the rotation ring is slidably sleeved on the toothed sleeve, arc-shaped clamping grooves which are uniformly distributed along the circumferential direction of the rotation ring are formed in the outer annular surface of the rotation ring, rectangular grooves which are uniformly distributed along the circumferential direction of the rotation ring are formed in the inner wall of the limiting sleeve, an installation seat is installed in the rectangular grooves through a pushing spring, and clamping beads which are clamped with the arc-shaped clamping grooves are connected to the installation seat in a rolling mode.

The above technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. according to the outer cam and gear press-fitting tool designed by the invention, through the cooperation of the fixing mechanism, the positioning mechanism and the press-fitting alignment mechanism, the outer spline on the outer cam and the inner spline on the gear can be rapidly positioned, the damage of the outer cam and the gear in the alignment process can be reduced, the outer cam and the gear can be press-fitted and assembled, the functions of precise alignment and rapid press-fitting integrated automation of the outer cam and the gear are realized, and the press-fitting efficiency and the automation degree of the outer cam and the gear are greatly improved.

2. When the inner spline pair on the gear is opposite to the second alignment spline on the gear sleeve, the gear moves downwards under the action of self gravity to separate from the pushing limiting arc plate, the inner spline sleeve is arranged on the second alignment spline, the second buffer spring and the bearing plate buffer the falling of the gear, and damage of impact force to the gear during falling is reduced.

3. According to the invention, the gear aligning sleeve which can rotate along the circumferential direction of the limiting sleeve and can slide up and down along the axial direction of the limiting sleeve is inserted into the limiting sleeve through the rotating limiting group, so that the gear aligning sleeve can slide up and down or rotate according to the requirement, the first aligning spline and the second aligning spline on the gear aligning sleeve can be aligned with the external spline and the internal spline quickly, and the aligning efficiency of the external spline and the internal spline is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall perspective view of the present invention.

Fig. 2 is a front cross-sectional view of fig. 1 of the present invention.

Fig. 3 is an enlarged view of the invention at a in fig. 2.

Fig. 4 is an enlarged view of the invention at B in fig. 2.

Fig. 5 is a top cross-sectional view of the rotation limiting set of the present invention.

Fig. 6 is a first perspective view of the tooth socket of the present invention.

Fig. 7 is a second perspective view of the tooth socket of the present invention.

Fig. 8 is a schematic perspective view of the outer cam, the outer spline, the gear and the inner spline.

Fig. 9 is a schematic view of a press-fit structure of the outer cam, the outer spline, the gear and the inner spline.

Reference numerals: 1. a base; 2. a fixing frame; 3. a hydraulic cylinder; 4. a positioning seat; 5. rotating the platform; 6. a fixing mechanism; 60. placing the groove; 61. a buffer spring I; 62. a buffer ring plate; 63. a support ring; 64. an inner support group; 640. a cylinder; 641. a lifting disc; 642. a spring groove; 643. a supporting rod; 644. an inner arc supporting plate; 645. a return spring; 7. a positioning mechanism; 70. a storage groove; 71. positioning the shaft sleeve; 72. a pushing spring; 73. an electromagnet; 74. buffering and carrying the group; 740. a support base; 741. an annular groove; 742. buffer spring II; 743. a bearing plate; 75. a rotation limiting group; 750. a limit groove; 751. a spring rod; 752. pushing the limiting arc plate; 8. a press-fitting alignment mechanism; 80. a rotating seat; 81. a limit sleeve; 82. rotating the limiting group; 820. a rotating ring; 821. an arc-shaped clamping groove; 823. a pushing spring; 824. clamping beads; 83. aligning the tooth sleeve; 84. a limiting ring; 85. aligning the first spline; 86. aligning the second spline; 87. buffering antifriction groups; 870. supplementing the ring seat; 871. a moving ring; 872. a buffer spring III; 9. an outer cam; 90. an external spline; 10. a gear; 101. an internal spline.

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.

In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 8, an external cam press-fitting tool includes: the base 1, install pneumatic cylinder 3 on the base 1 through mount 2, the flexible end of pneumatic cylinder 3 is connected with positioning seat 4, and the top rotation of base 1 is connected with rotary platform 5, and positioning seat 4 is located rotary platform 5 directly over, and concentric with rotary platform 5, is provided with on the rotary platform 5 and carries out the fixed establishment 6 of counterpoint to outer cam 9, is provided with external spline 90 on the outer cam 9.

Referring to fig. 1,2 and 8, a positioning mechanism 7 for positioning and fixing a gear 10 is arranged on a positioning seat 4, and an internal spline 101 is arranged on the gear 10; the base 1 is provided with a press-fit alignment mechanism 8.

Referring to fig. 3, the fixing mechanism 6 includes a ring-shaped placement groove 60 formed at the top of the rotary platform 5, a buffer ring plate 62 is mounted on the bottom of the placement groove 60 through a plurality of buffer springs 61 uniformly distributed along the circumferential direction of the placement groove, a support ring 63 for supporting the buffer ring plate 62 is disposed on the bottom of the placement groove 60, and an inner support group 64 for inner support positioning and fixing of the outer cam 9 is disposed in the middle of the rotary platform 5.

Be provided with the rotatory actuating source (such as the motor) of the slight pivoted of drive rotary platform 5 on the base 1, place outer cam 9 in placing recess 60 through current manipulator, buffer spring one 61 and buffering ring plate 62 cooperation are gone on buffering to outer cam 9's whereabouts, and the damage appears when avoiding outer cam 9 to place to drop, then carry out the internal support through interior support group 64 to outer cam 9 is fixed to in the back support group 64 drives outer cam 9 and rotates the counterpoint.

Referring to fig. 2, 6 and 7, the press-fit alignment mechanism 8 includes a supplementary seat disposed on a side wall of the base 1, the supplementary seat is rotatably connected with a rotary seat 80, a stop collar 81 sliding up and down is connected to the rotary seat 80, an alignment sleeve 83 which can rotate along a circumferential direction of the stop collar 81 and slide up and down along an axial direction of the stop collar 81 is inserted into the stop collar 81 through a rotation stop collar group 82, a stop collar 84 disposed above the stop collar 81 is fixedly mounted on an outer side wall of the alignment sleeve 83, the alignment sleeve 83 is in a cylindrical structure, an alignment spline one 85 is disposed on an inner wall of a lower end, an alignment spline two 86 is disposed on an upper end, the alignment spline one 85 has the same tooth shape as an inner spline 101, the alignment spline two 86 has the same tooth shape as an outer spline 90, and a buffer antifriction group 87 is disposed on an outer wall of the alignment sleeve 83 near a lower end.

Referring to fig. 2 and 4, the positioning mechanism 7 includes a receiving slot 70 disposed at the bottom of the positioning seat 4 and concentric therewith, a positioning sleeve 71 sliding up and down is connected in the receiving slot 70, a pushing spring 72 is mounted between the positioning sleeve 71 and the receiving slot 70, an electromagnet 73 uniformly distributed along the circumferential direction is mounted at the bottom of the positioning seat 4, a buffer receiving group 74 is disposed at the position of the outer wall of the tooth sleeve 83 near the upper end, and a rotation limiting group 75 is mounted on the side wall of the positioning sleeve 71.

The gear 10 is sleeved on the positioning shaft sleeve 71 through the existing manipulator, the gear 10 is adsorbed and fixed through the electromagnet 73, the gear 10 is prevented from falling, meanwhile, the gear 10 is supported and abutted in the rotating limit group 75, then, the rotating seat 80 is driven to rotate through external driving equipment (such as a motor) connected with the rotating seat 80, the rotating seat 80 drives the toothed sleeve 83 to rotate to the upper side of the outer spline 9 through the limit group 81, then, the limit group 81 is driven to move downwards through the existing electric sliding block, the limit group 81 drives the toothed sleeve 83 to move downwards, when the top of the external spline 90 on the outer spline 9 is abutted against the first alignment spline 85, the limit group 81 continues to move downwards, the toothed sleeve 83 does not move downwards and axially slides along the limit group 81 through the rotating limit group 82 until the limit group 81 stops moving downwards, then, the outer cam 9 is driven to rotate slightly through the internal support group 64, and at the moment, the toothed sleeve 83 is not rotated under the limit effect of the first alignment spline 85 and the friction force of the external spline 90, so that the external spline 90 on the outer spline 9 is aligned with the first alignment spline 83, and the first alignment spline 85 is driven to slide downwards and the first alignment spline 85 continues to slide on the spline 85.

Then the hydraulic cylinder 3 is started, the gear 10 is driven to gradually move downwards through the hydraulic cylinder 3 and the positioning seat 4, when the bottom of an internal spline 101 of the gear 10 is contacted with the top of a second alignment spline 86, the hydraulic cylinder 3 stops moving, meanwhile, the lower end of the gear 10 is contacted with the buffer bearing group 74, the lower end of the gear 10 is subjected to bearing force, the electromagnet 73 is powered off, the gear 10 is not adsorbed to the gear 10 any more, the gear 10 is only supported by the buffer bearing group 74 at the moment, then the internal support group 64 drives the external cam 9 to rotate again, the external cam 9 is matched with a first alignment spline 85 through an external spline 90 so as to drive the second alignment spline 86 to rotate, the gear 10 does not rotate under the matching action of the rotation limiting group 75 and the buffer bearing group 74, when the internal spline 101 on the gear 10 is opposite to the second alignment spline 86 on the second alignment spline 83, the gear 10 moves downwards under the action of self gravity and enables the internal spline 101 to be sleeved on the second alignment spline 86, so that automatic accurate alignment of the external spline 90 on the external cam 9 and the internal spline 101 on the gear 10 is realized under a suspended state, then the hydraulic cylinder 3 moves downwards, the electromagnet 73 adsorbs and fixes the gear 10 and drives the gear 10 to move upwards, finally the limiting sleeve 81 moves upwards, the gear sleeve 83 is driven to move upwards through the limiting ring 84 to be separated from the external spline 90, the rotating seat 80 drives the gear sleeve 83 to be rotationally transferred between the external cam 9 and the gear 10, so that alignment of the external cam 9 and the gear 10 is completed, then the hydraulic cylinder 3 drives the gear 10 to move downwards, the gear 10 is sleeved on the external cam 9 in a press-fitting mode, and therefore automatic alignment and press-fitting functions of the external cam 9 and the gear 10 are realized, and the press-fitting efficiency and the degree of automation of the external cam 9 and the gear 10 are greatly improved.

Referring to fig. 2 and 3, the inner support set 64 includes a mounting groove formed in the middle of the rotary platform 5, a cylinder 640 is disposed in the mounting groove, a lifting disk 641 having a trapezoid cross section is mounted at a telescopic end of the cylinder 640, a plurality of spring grooves 642 uniformly distributed along a circumferential direction of the placement groove 60 are formed on a side wall of the placement groove 60 close to the mounting groove, a support rod 643 slidably penetrating the mounting groove is connected in the spring groove 642, an inner arc supporting plate 644 is mounted at one end of the support rod 643 located in the spring groove 642, a return spring 645 sleeved on the support rod 643 is mounted between the inner arc supporting plate 644 and the spring groove 642, and one end of the support rod 643 located in the mounting groove is abutted against the side wall of the lifting disk 641.

After the outer cam 9 is placed, the air cylinder 640 pushes the lifting disc 641 to move upwards, and the lifting disc 641 pushes the supporting rod 643 to drive the inner supporting arc plate 644 to move towards the inner wall of the outer cam 9 through the inclined side wall of the lifting disc 641 in the upward moving process until the inner supporting arc plate 644 abuts against the inner wall of the outer cam 9, so that the outer cam 9 is fixed, and the rotating platform 5 drives the outer cam 9 to rotate for tooth-shaped alignment.

Referring to fig. 2, the buffer receiving set 74 includes a support base 740 mounted on a side wall of the toothed sleeve 83, an annular groove 741 is formed on the support base 740, a bearing plate 743 is connected to the annular groove 741 through a plurality of buffer springs two 742 uniformly distributed along a circumferential direction of the annular groove 741, and a plurality of antifriction balls one uniformly distributed along the circumferential direction of the bearing plate 743 are connected to the bearing plate 743 in a rolling manner.

Referring to fig. 4, the rotation limiting group 75 includes a plurality of limiting grooves 750 formed on the side wall of the positioning sleeve 71 and uniformly distributed along the circumferential direction thereof, and a pushing limiting arc plate 752 is mounted in the limiting grooves 750 through a spring bar 751, and the lower end of the pushing limiting arc plate 752 is arc-shaped.

When the gear 10 is sleeved on the positioning shaft sleeve 71 and is fixedly adsorbed by the electromagnet 73, the spring rod 751 pushes the pushing limiting arc plate 752 to be tightly abutted against the internal spline 101 of the gear 10, then when the gear 10 moves downwards, the bearing plate 743 supports the gear 10, the electromagnet 73 does not adsorb the gear 10 any more, then the internal support group 64 drives the external cam 9 to rotate again, the external cam 9 drives the counter gear sleeve 83 to rotate with the counter spline II 86 through the spline fit of the external spline 90 and the counter spline II 85, the gear 10 does not rotate under the action of the pushing force of the external spline II and the pushing limiting arc plate 752, the gear 10 is in rolling contact with the antifriction balls I, so that the damage of friction force to the gear 10 is reduced, when the internal spline 101 on the gear 10 faces the counter spline II 86 on the counter gear sleeve 83, the gear 10 moves downwards under the action of self gravity to be separated from the pushing limiting arc plate 752, the internal spline 101 is sleeved on the counter spline II 86, the buffer spring II 742 and the bearing 743 buffers the falling of the gear 10, and the damage of the gear 10 caused by the falling impact force is reduced.

Referring to fig. 3, the buffering antifriction set 87 includes a supplementary ring seat 870 installed on the outer sidewall of the lower end of the toothed sleeve 83, a receiving groove is formed at the bottom of the supplementary ring seat 870, a moving ring 871 sliding up and down is connected in the receiving groove, the moving ring 871 is connected with the receiving groove through a buffering spring three 872 uniformly distributed along the circumferential direction, and a antifriction ball two is installed at the bottom of the moving ring 871.

When the tooth sleeve 83 moves downwards, the moving ring 871 contacts with the top of the outer cam 9 through the antifriction balls II, and when the inner support group 64 drives the outer cam 9 to slightly rotate, the outer spline 90 on the outer cam 9 is opposite to the alignment spline 85 on the tooth sleeve 83, the tooth sleeve 83 continuously slides downwards and drives the alignment spline 85 to be sleeved on the outer spline 90, and the buffer spring III 872 and the moving ring 871 cooperate to buffer the falling of the tooth sleeve 83, so that the damage to the outer cam 9 caused by the downward falling of the tooth sleeve 83 is avoided.

Referring to fig. 5, the rotation limiting group 82 includes a rotation ring 820 rotationally connected in the limiting sleeve 81, the rotation ring 820 is slidably sleeved on the toothed sleeve 83, an arc-shaped clamping groove 821 uniformly distributed along the circumferential direction of the rotation ring 820 is provided on the outer ring surface of the rotation ring 820, a rectangular groove uniformly distributed along the circumferential direction of the inner wall of the limiting sleeve 81 is provided on the inner wall of the limiting sleeve 81, a mounting seat is mounted in the rectangular groove through a pushing spring 823, and clamping beads 824 are connected with the arc-shaped clamping groove 821 in a rolling manner on the mounting seat.

When the inner support group 64 drives the outer cam 9 to slightly rotate, the rotary ring 820 cannot rotate due to friction force between the outer cam 9 and the outer spline sleeve 83 under the clamping limiting effect of the arc-shaped clamping groove 821 and the clamping beads 824, and when the outer spline 90 on the outer cam 9 is opposite to the first alignment spline 85 on the outer spline sleeve 83, the outer spline sleeve 83 moves downwards under the action of self gravity along the rotary ring 820, so that the outer spline sleeve 83 is sleeved on the outer spline 90 on the outer cam 9 through the first alignment spline 85, and alignment of the outer spline 90 and the inner spline 101 on the outer cam 9 is realized.

Then, when the inner support set 64 drives the outer cam 9 to rotate again to drive the tooth aligning sleeve 83 to align with the gear 10, the outer cam 9 drives the tooth aligning sleeve 83 to rotate through the spline fit of the outer spline 90 and the first aligning spline 85, the tooth aligning sleeve 83 drives the rotary ring 820 to rotate, and the rotary ring 820 enables the arc-shaped clamping groove 821 to extrude the clamping bead 824 to drive the mounting seat to move into the rectangular groove under the action of the rotating force, so that the rotation of the tooth aligning sleeve 83 is realized.

During operation, the outer cam 9 is placed in the placement groove 60 through the existing manipulator, the first buffer spring 61 and the buffer ring plate 62 are matched to buffer the falling of the outer cam 9, damage to the outer cam 9 during placement falling is avoided, and then the inner support of the outer cam 9 is fixed through the inner support group 64. Then, the gear 10 is sleeved on the positioning shaft sleeve 71 by a conventional manipulator, the gear 10 is adsorbed and fixed by the electromagnet 73, the gear 10 is prevented from falling, and the gear 10 is supported and abutted by the rotation limiting group 75.

The rotary seat 80 is driven to rotate by external driving equipment (such as a motor) connected with the rotary seat 80, the rotary seat 80 drives the tooth aligning sleeve 83 to rotate to the upper side of the outer cam 9 through the limiting sleeve 81, then the limiting sleeve 81 is driven to move downwards through the existing electric sliding block, the tooth aligning sleeve 83 is driven to move downwards through the limiting sleeve 81, then the outer cam 9 is driven to slightly rotate through the inner supporting group 64, so that the outer spline 90 on the outer cam 9 is aligned with the first aligning spline 85 on the tooth aligning sleeve 83, and the tooth aligning sleeve 83 continuously slides downwards and drives the first aligning spline 85 to be sleeved on the outer spline 90.

The gear 10 is driven to gradually move downwards through the hydraulic cylinder 3 and the positioning seat 4, when the bottom of an internal spline 101 of the gear 10 is in contact with the top of an alignment spline II 86, the hydraulic cylinder 3 stops moving, the electromagnet 73 is powered off, then the internal support group 64 drives the external cam 9 to rotate again, when the internal spline 101 on the gear 10 is opposite to the alignment spline II 86 on the gear sleeve 83, the gear 10 moves downwards under the action of self gravity and enables the internal spline 101 to be sleeved on the alignment spline II 86, and therefore automatic accurate alignment of the external spline 90 on the external cam 9 and the internal spline 101 on the gear 10 is achieved under the suspended state.

Finally, the rotating seat 80 drives the gear sleeve 83 to rotate and shift out between the outer cam 9 and the gear 10, the hydraulic cylinder 3 drives the gear 10 to move downwards, and the gear 10 is arranged on the outer cam 9 in a press fit mode (as shown in fig. 9), so that automatic alignment and press fit functions of the outer cam 9 and the gear 10 are achieved, and press fit efficiency and automation degree of the outer cam 9 and the gear 10 are greatly improved.

In the description of the present invention, it should be understood that the terms "long", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.

Claims (6)

1. The utility model provides an evagination gear pressure equipment frock which characterized in that includes: the base (1), install pneumatic cylinder (3) through mount (2) on base (1), the flexible end of pneumatic cylinder (3) is connected with positioning seat (4), the top rotation of base (1) is connected with rotary platform (5), positioning seat (4) are located rotary platform (5) directly over, and concentric with rotary platform (5), be provided with on rotary platform (5) external cam (9) and counterpoint fixed establishment (6), be provided with external spline (90) on external cam (9);

a positioning mechanism (7) for positioning and fixing the gear (10) is arranged on the positioning seat (4), and an internal spline (101) is arranged on the gear (10); the base (1) is provided with a press-fit alignment mechanism (8);

The fixing mechanism (6) comprises a ring-shaped placing groove (60) which is formed in the top of the rotating platform (5), a buffer ring plate (62) is arranged at the bottom of the placing groove (60) through a plurality of buffer springs I (61) which are uniformly distributed along the circumferential direction of the placing groove, a supporting ring (63) for supporting the buffer ring plate (62) is arranged at the bottom of the placing groove (60), and an inner supporting group (64) for carrying out inner supporting positioning and fixing on the outer cam (9) is arranged at the middle part of the rotating platform (5);

The positioning mechanism (7) comprises a storage groove (70) which is arranged at the bottom of the positioning seat (4) and is concentric with the positioning seat, a positioning shaft sleeve (71) which slides up and down is connected in the storage groove (70), a pushing spring (72) is arranged between the positioning shaft sleeve (71) and the storage groove (70), electromagnets (73) which are uniformly distributed along the circumferential direction of the positioning seat are arranged at the bottom of the positioning seat (4), a buffer bearing group (74) is arranged at the position, close to the upper end, of the outer wall of the toothed sleeve (83), and a rotation limiting group (75) is arranged on the side wall of the positioning shaft sleeve (71);

The press-fit alignment mechanism (8) comprises a supplementing seat arranged on the side wall of the base (1), a rotating seat (80) is rotationally connected to the supplementing seat, a limiting sleeve (81) sliding up and down is connected to the rotating seat (80), a tooth aligning sleeve (83) which can rotate along the circumferential direction of the limiting sleeve (81) and slide up and down along the axial direction of the limiting sleeve (81) is inserted into the limiting sleeve (81) through a rotating limiting group (82), a limiting ring (84) arranged above the limiting sleeve (81) is fixedly arranged on the outer side wall of the tooth aligning sleeve (83), the tooth aligning sleeve (83) is of a cylindrical structure, an alignment spline I (85) is arranged on the inner wall of the lower end of the tooth aligning sleeve, an alignment spline II (86) is arranged at the upper end of the tooth aligning spline I (85) and the tooth form of an inner spline (101), the alignment spline II (86) and the tooth form of an outer spline (90) are identical, and a buffering and antifriction group (87) is arranged on the outer wall of the tooth aligning sleeve (83) close to the lower end of the tooth aligning sleeve.

2. The external cam press-fitting tool according to claim 1, wherein: the inner support group (64) comprises a mounting groove formed in the middle of the rotary platform (5), an air cylinder (640) is arranged in the mounting groove, a lifting disc (641) with a trapezoid cross section is arranged at the telescopic end of the air cylinder (640), a plurality of spring grooves (642) which are uniformly distributed along the circumferential direction of the placing groove (60) are formed in the side wall of the placing groove (60), a supporting rod (643) which penetrates through the mounting groove in a sliding mode is connected in the spring groove (642), an inner arc supporting plate (644) is arranged at one end of the supporting rod (643) located in the spring groove (642), a reset spring (645) sleeved on the supporting rod (643) is arranged between the inner arc supporting plate (644) and the spring groove (642), and one end of the supporting rod (643) located in the mounting groove is abutted to the side wall of the lifting disc (641).

3. The external cam press-fitting tool according to claim 1, wherein: the buffering bearing group (74) comprises a supporting seat (740) arranged on the side wall of the toothed sleeve (83), an annular groove (741) is formed in the supporting seat (740), a bearing plate (743) is connected to the annular groove (741) through a plurality of buffering springs II (742) which are uniformly distributed along the circumferential direction of the annular groove, and a plurality of antifriction balls I which are uniformly distributed along the circumferential direction of the bearing plate (743) are connected to the bearing plate (743) in a rolling mode.

4. The external cam press-fitting tool according to claim 1, wherein: the rotary limiting group (75) comprises a plurality of limiting grooves (750) which are formed in the side wall of the positioning shaft sleeve (71) and are uniformly distributed along the circumferential direction of the positioning shaft sleeve, a pushing limiting arc plate (752) is arranged in the limiting grooves (750) through a spring rod (751), and the lower end of the pushing limiting arc plate (752) is arc-shaped.

5. The external cam press-fitting tool according to claim 1, wherein: the buffering antifriction group (87) is including installing at the supplementary ring seat (870) to tooth cover (83) lower extreme lateral wall, and the holding tank has been seted up to the bottom of supplementary ring seat (870), and the holding tank internal connection has the slip removal ring (871) from top to bottom, is connected through the buffering spring three (872) of evenly arranging along its circumference between removal ring (871) and the holding tank, and antifriction ball two is installed to the bottom of removal ring (871).

6. The external cam press-fitting tool according to claim 1, wherein: the rotating limiting group (82) comprises a rotating ring (820) which is rotationally connected in a limiting sleeve (81), the rotating ring (820) is slidably sleeved on the toothed sleeve (83), arc clamping grooves (821) which are uniformly distributed along the circumferential direction of the rotating ring are formed in the outer annular surface of the rotating ring (820), rectangular grooves which are uniformly distributed along the circumferential direction of the inner wall of the limiting sleeve (81) are formed in the inner wall of the limiting sleeve, an installation seat is installed in the rectangular grooves through a pushing spring (823), and clamping beads (824) which are clamped with the arc clamping grooves (821) are connected to the installation seat in a rolling mode.