CN214979079U

CN214979079U - Cross axle centering mechanism

Info

Publication number: CN214979079U
Application number: CN202120812592.2U
Authority: CN
Inventors: 徐建华; 梁勇; 徐志坚; 姜勇; 陈勇贵; 杜建龙
Original assignee: Zhejiang Foertai Intelligent Equipment Co ltd
Current assignee: Zhejiang Foertai Intelligent Equipment Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-03
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a bearing assembly quality technical field is a cross axle centering mechanism, it includes work platform, a front fixed plate, first centring means, after-fixing board and second centring means, work platform front side middle part fixed mounting has a front fixed plate, be equipped with first centring means on the front fixed plate, first centring means includes the carriage apron, lower carriage apron, shift unit, slider and supporting shoe, the front fixed plate top is equipped with down the carriage apron, be equipped with the shift unit that enables down the carriage apron for the front fixed plate back-and-forth movement down between carriage apron and the front fixed plate. The utility model has reasonable and compact structure and convenient use, and realizes the determination of the centering position of the cross shaft by arranging the first centering cylinder, the fixed block and the adjusting block and enabling the left side surface of the fixed block and the left side surface of the adjusting block to be in the same vertical plane; through setting up second centering cylinder stopper, reduce the error of centering in-process, have quick, accurate and reliable characteristics.

Description

Cross axle centering mechanism

Technical Field

The utility model relates to a bearing assembly quality technical field is a cross axle centering mechanism.

Background

The cross axle universal joint assembly is used as key part in automobile driving system, can realize variable angle power transmission, is used in changing the position and direction of driving shaft line, and is the 'joint' part of automobile steering and driving system. With the rapid development of China as the largest automobile production country in the world and the automobile part industry, the demand of the cross shaft assembly is larger and larger, the requirement on the product quality is higher and higher, and the assembly process of the cross shaft assembly is mostly completed by manual assembly. The mode causes low assembly efficiency of the cross shaft assembly, unstable assembly quality and certain fluctuation, and the traditional cross shaft assembly process becomes a bottleneck process in the production of the cross shaft assembly.

At present, when the universal joint cross is assembled, after the universal joint cross is assembled into the upper fork body and the lower fork body, the bearing and the clamp spring are respectively assembled into the front end, the rear end, the left end and the right end of the universal joint cross, and therefore in the assembling process, the universal joint cross needs to be centered after a working platform is placed on the universal joint cross, and the universal joint cross can be assembled through a plurality of mechanisms.

Disclosure of Invention

The utility model provides a cross centering mechanism has overcome above-mentioned prior art not enough, has cross centering inaccurate, the big problem of error when it can effectively solve current cross universal joint assembly.

The technical scheme of the utility model is realized through following measure: a cross shaft centering mechanism comprises a working platform, a front fixing plate, a first centering device, a rear fixing plate and a second centering device, wherein the front fixing plate is fixedly installed in the middle of the front side of the working platform, the first centering device is arranged on the front fixing plate and comprises an upper slide carriage, a lower slide carriage, a shifting device, a sliding device and a supporting block, the lower slide carriage is arranged above the front fixing plate, the shifting device capable of enabling the lower slide carriage to move back and forth relative to the front fixing plate is arranged between the lower slide carriage and the front fixing plate, the upper slide carriage is arranged above the lower slide carriage, the supporting block with the rear end positioned behind the upper slide carriage is fixedly installed in the center of the upper side of the upper slide carriage, the supporting block is provided with a supporting groove with a backward opening, the sliding device capable of enabling the upper slide carriage to move left and right relative to the lower slide carriage is arranged between the upper slide carriage and the lower slide carriage, and the sliding device comprises a first sliding block, a first sliding rail, a second sliding block, a second sliding rail, a second sliding block and a second centering device, The upper side of the lower slide carriage is provided with a first slide rail and a second slide rail at intervals, the upper side of the first slide rail is fixedly installed with a first slide block, the upper side of the second slide rail is fixedly installed with a second slide block, the upper side of the left part of the lower slide carriage is fixedly installed with a fixed block, the lower side of the upper slide carriage is fixedly installed with an adjusting block, the lower side of the right part of the upper slide carriage is fixedly installed with a limiting block, the upper side of the left end of the lower slide carriage is fixedly installed with a first centering cylinder, the right end of the first centering cylinder is provided with a first piston rod capable of extending rightwards, the upper part of the right end of the first piston rod corresponds to the lower part of the left side of the adjusting block, the lower part of the right end of the first piston rod corresponds to the upper part of the left side of the fixed block, a second centering cylinder is fixedly mounted on the upper side of the right end of the lower sliding plate corresponding to the position of the limiting block, a second piston rod capable of extending leftwards is arranged at the left end of the second centering cylinder, and the left end of the second piston rod corresponds to the center of the right side of the limiting block; the middle part of the rear side of the working platform is fixedly provided with a rear fixing plate, the rear fixing plate is provided with a second centering device, and the second centering device has the same structure as the first centering device and is distributed in central symmetry.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the shifting device can comprise a third slide block, a third slide rail, a fourth slide rail and a shifting cylinder, the third slide rail and the fourth slide rail are arranged on the upper side of the front fixing plate at intervals, the third slide rail is provided with a third slide block with the upper side fixedly mounted with the lower side of the lower slide plate, the fourth slide rail is provided with a fourth slide block with the upper side fixedly mounted with the lower side of the lower slide plate, the shifting cylinder is fixedly mounted at the front end of the upper side of the front fixing plate, the rear end of the shifting cylinder is provided with a third piston rod capable of extending backwards, and the rear end of the third piston rod is fixedly mounted with the front side of the lower slide plate.

The device also comprises a first push head and a second push head, wherein the right end of the first piston rod is fixedly provided with the first push head, the right side of the first push head is planar, the left end of the second piston rod is fixedly provided with the second push head, and the left end of the second push head is hemispherical.

The support block further comprises a corner cylinder and a pressure head, the middle of the support block is provided with a mounting hole which is communicated up and down, the corner cylinder is fixedly mounted in the mounting hole, the upper end of the corner cylinder is provided with a fourth piston rod which can extend upwards and rotate, and the upper end of the fourth piston rod is fixedly provided with the pressure head.

The lower side of the rear end of the pressure head can be provided with a pressure groove with a backward opening.

The support groove may be a V-shaped groove with an upward opening.

The utility model has reasonable and compact structure and convenient use, and realizes the determination of the centering position of the cross shaft by arranging the first centering cylinder, the fixed block and the adjusting block and enabling the left side surface of the fixed block and the left side surface of the adjusting block to be in the same vertical plane; through setting up second centering cylinder stopper, reduce the error of centering in-process, have quick, accurate and reliable characteristics.

Drawings

Fig. 1 is a schematic top view partially in section of the preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of the corner cylinder, the supporting groove and the pressure head in fig. 1.

The codes in the figures are respectively: the device comprises a working platform 1, a front fixing plate 2, a rear fixing plate 3, an upper slide carriage 4, a lower slide carriage 5, a supporting block 6, a shifting cylinder 7, a first slide rail 8, a second slide rail 9, a first slide block 10, a second slide block 11, a first centering cylinder 12, a second centering cylinder 13, an adjusting block 14, a limiting block 15, a third slide rail 16, a fourth slide rail 17, a corner cylinder 18, a pressure head 19, a cross shaft 20, a pressure groove 21 and a supporting groove 22.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in attached figures 1 and 2, the cross axle centering mechanism comprises a working platform 1, a front fixing plate 2, a first centering device, a rear fixing plate 3 and a second centering device, wherein the front fixing plate 2 is fixedly installed in the middle of the front side of the working platform 1, the first centering device is arranged on the front fixing plate 2 and comprises an upper slide carriage 4, a lower slide carriage 5, a shifting device, a sliding device and a supporting block 6, the lower slide carriage 5 is arranged above the front fixing plate 2, the shifting device capable of enabling the lower slide carriage 5 to move back and forth relative to the front fixing plate 2 is arranged between the lower slide carriage 5 and the front fixing plate 2, the upper slide carriage 4 is arranged above the lower slide carriage 5, the supporting block 6 with the rear end positioned behind the upper slide carriage 4 is fixedly installed in the center of the upper side of the upper slide carriage 4, a supporting groove 22 with a backward opening is arranged on the upper side of the supporting block 6, and the sliding device capable of enabling the upper slide carriage 4 to move left and right relative to the lower slide carriage 5 is arranged between the upper slide carriage 4 and the lower slide carriage 5, the sliding device comprises a first slide block 10, a first slide rail 8, a second slide block 11, a second slide rail 9, a fixed block, an adjusting block 14, a limiting block 15, a first centering air cylinder 12 and a second centering air cylinder 13, wherein the first slide rail 8 and the second slide rail 9 are arranged on the upper side of the lower slide carriage 5 at intervals in front and back, the first slide rail 8 is provided with the first slide block 10 the upper side of which is fixedly arranged with the lower side of the upper slide carriage 4, the second slide rail 9 is provided with the second slide block 11 the upper side of which is fixedly arranged with the lower side of the upper slide carriage 4, the fixed block is fixedly arranged on the upper side of the left part of the lower slide carriage 5 corresponding to the position between the first slide rail 8 and the second slide rail 9, the adjusting block 14 is fixedly arranged on the lower side of the right part of the upper slide carriage 4 corresponding to the position between the first slide rail 8 and the second slide rail 9, the first centering air cylinder 12 is fixedly arranged on the upper side of the left end of the lower slide carriage 5 corresponding to the position, a first piston rod capable of extending rightwards is arranged at the right end of the first centering cylinder 12, the upper portion of the right end of the first piston rod corresponds to the lower portion of the left side of the adjusting block 14, the lower portion of the right end of the first piston rod corresponds to the upper portion of the left side of the fixed block, a second centering cylinder 13 is fixedly mounted on the upper side of the right end of the lower sliding plate 5 corresponding to the position of the limiting block 15, a second piston rod capable of extending leftwards is arranged at the left end of the second centering cylinder 13, and the left end of the second piston rod corresponds to the center of the right side of the limiting block 15; a rear fixing plate 3 is fixedly mounted in the middle of the rear side of the working platform 1, a second centering device is arranged on the rear fixing plate 3, and the second centering device is identical in structure with the first centering device and is distributed in central symmetry. In the using process, a cross shaft 20 is placed on a working platform 1, the front end of the cross shaft 20 is positioned in a supporting groove 22 of a first centering device, the rear end of the cross shaft 20 is positioned in a supporting groove 22 of a second centering device, first centering cylinders 12 of the first centering device and the second centering device are extended, namely the first centering cylinder 12 of the first centering device is extended rightwards, the first centering cylinder 12 of the second centering device is extended leftwards, the position of an adjusting block 14 is overlapped with a fixed block, at the moment, an upper slide carriage 4 cannot move rightwards relative to a lower slide carriage 5, after the position of the adjusting block 14 is overlapped with the fixed block due to the action of inertia, a slight error of rightward movement relative to the lower slide carriage 5 exists in the upper slide carriage 4, at the moment, second centering cylinders 13 of the first centering device and the second centering device are extended to push a limiting block 15, and the error of sliding of the upper slide carriage 4 is eliminated, thereby effecting centering of cross-shaft 20; after the centering of the cross 20 is completed, the second centering cylinders 13 of the first and second centering devices are retracted, and the first centering cylinders 12 of the first and second centering devices are retracted. The utility model has reasonable and compact structure and convenient use, and realizes the determination of the centering position of the cross shaft 20 by arranging the first centering cylinder 12, the fixed block and the adjusting block 14 and enabling the left side surface of the fixed block and the left side surface of the adjusting block 14 to be in the same vertical plane; through setting up second centering cylinder 13 stopper 15, reduce the error of centering in-process, have quick, accurate and reliable characteristics.

The cross shaft centering mechanism can be further optimized or/and improved according to actual needs:

as shown in fig. 1, the shifting device includes a third slide block, a third slide rail 16, a fourth slide block, a fourth slide rail 17 and a shifting cylinder 7, the third slide rail 16 and the fourth slide rail 17 are arranged on the upper side of the front fixing plate 2 at left and right intervals, the third slide rail 16 is provided with the third slide block, the upper side of which is fixedly mounted with the lower side of the lower slide carriage 5, the fourth slide rail 17 is provided with the fourth slide block, the upper side of which is fixedly mounted with the lower side of the lower slide carriage 5, the shifting cylinder 7 is fixedly mounted on the front end of the upper side of the front fixing plate 2, the rear end of the shifting cylinder 7 is provided with a third piston rod which can extend backwards, and the rear end of the third piston rod is fixedly mounted with the front side of the lower slide carriage 5. Through the arrangement, the lower slide carriage 5 can move back and forth relative to the front fixing plate 2 more stably, reliably and accurately in the using process.

As shown in the attached drawing 1, the device also comprises a first pushing head and a second pushing head, wherein the right end of the first piston rod is fixedly provided with the first pushing head, the right side of the first pushing head is planar, the left end of the second piston rod is fixedly provided with the second pushing head, and the left end of the second pushing head is hemispherical. In the using process, the first push head is arranged, so that the first piston rod can conveniently push the upper slide carriage 4 and the adjusting block 14 to move rightwards, and the left side surface of the adjusting block 14 and the left side surface of the fixing block are not moved rightwards any more after being positioned on the same horizontal plane; through setting up the second pushing head, be convenient for the second piston rod to promote stopper 15 and remove to the left.

As shown in the attached drawings 1 and 2, the hydraulic support further comprises a corner cylinder 18 and a pressure head 19, the middle portion of the support block 6 is provided with a vertically through mounting hole, the corner cylinder 18 is fixedly mounted in the mounting hole, the upper end of the corner cylinder 18 is provided with a fourth piston rod which can extend upwards and rotate, and the upper end of the fourth piston rod is fixedly provided with the pressure head 19. In use, the ram 19 angularly positions a spider 20 placed on the support block 6 by providing an angle cylinder 18.

As shown in fig. 1 and 2, the rear end of the pressing head 19 is provided with a pressing groove 21 which is opened backwards. In use, the indenter 19 is facilitated to compress the cross 20 by providing the indent 21.

As shown in fig. 1 and 2, the support groove 22 is a V-shaped groove with an upward opening. By such an arrangement, the spider 20 is more stable and reliable when placed in the support slot during use.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. A cross shaft centering mechanism is characterized by comprising a working platform, a front fixing plate, a first centering device, a rear fixing plate and a second centering device, wherein the front fixing plate is fixedly installed in the middle of the front side of the working platform, the first centering device is arranged on the front fixing plate and comprises an upper slide carriage, a lower slide carriage, a shifting device, a sliding device and a supporting block, the lower slide carriage is arranged above the front fixing plate, the shifting device capable of enabling the lower slide carriage to move back and forth relative to the front fixing plate is arranged between the lower slide carriage and the front fixing plate, the upper slide carriage is arranged above the lower slide carriage, the supporting block with the rear end positioned behind the upper slide carriage is fixedly installed in the center of the upper side of the upper slide carriage, a supporting groove with a backward opening is formed in the upper side of the supporting block, the sliding device capable of enabling the upper slide carriage to move left and right relative to the lower slide carriage is arranged between the upper slide carriage and the lower slide carriage, and the sliding device comprises a first sliding block, a first sliding rail, a second sliding block and a second sliding block, A second slide rail, a fixed block, an adjusting block, a limiting block, a first centering cylinder and a second centering cylinder, wherein the first slide rail and the second slide rail are arranged at the front and back intervals on the upper side of the lower slide plate, a first slide block is arranged on the first slide rail, the upper side of the first slide rail is fixedly installed with the lower side of the upper slide plate, a second slide block is arranged on the second slide rail, the upper side of the left part of the lower slide plate is fixedly installed with the fixed block corresponding to the position between the first slide rail and the second slide rail, the lower side of the upper slide plate corresponding to the position of the fixed block is fixedly installed with the adjusting block, the lower side of the right part of the upper slide plate corresponding to the position between the first slide rail and the second slide rail is fixedly installed with the limiting block, the upper side of the left end of the lower slide plate corresponding to the position of the fixed block is fixedly installed with the first centering cylinder, the right end of the first centering cylinder is provided with a first piston rod capable of extending rightwards, the upper part of the right end of the first piston rod corresponds to the lower part of the left side of the adjusting block, the lower part of the right end of the first piston rod corresponds to the upper part of the left side of the fixed block, a second centering cylinder is fixedly mounted on the upper side of the right end of the lower sliding plate corresponding to the position of the limiting block, a second piston rod capable of extending leftwards is arranged at the left end of the second centering cylinder, and the left end of the second piston rod corresponds to the center of the right side of the limiting block; the middle part of the rear side of the working platform is fixedly provided with a rear fixing plate, the rear fixing plate is provided with a second centering device, and the second centering device has the same structure as the first centering device and is distributed in central symmetry.

2. The cross shaft centering mechanism according to claim 1, wherein the shifting device comprises a third slide block, a third slide rail, a fourth slide block, a fourth slide rail and a shifting cylinder, the third slide rail and the fourth slide rail are provided on the upper side of the front fixing plate at left and right intervals, the third slide rail is provided with a third slide block, the upper side of the third slide block is fixedly mounted with the lower side of the lower slide plate, the fourth slide rail is provided with a fourth slide block, the upper side of the fourth slide block is fixedly mounted with the lower side of the lower slide plate, the shifting cylinder is fixedly mounted on the front end of the upper side of the front fixing plate, the rear end of the shifting cylinder is provided with a third piston rod capable of extending backwards, and the rear end of the third piston rod is fixedly mounted with the front side of the lower slide plate.

3. The cross axle centering mechanism of claim 1 or 2, further comprising a first pushing head and a second pushing head, wherein the first pushing head is fixedly installed at the right end of the first piston rod, the right side of the first pushing head is planar, the second pushing head is fixedly installed at the left end of the second piston rod, and the left end of the second pushing head is hemispherical.

4. The cross shaft centering mechanism according to claim 1 or 2, further comprising a corner cylinder and a pressing head, wherein the middle portion of the supporting block is provided with a vertically through mounting hole, the corner cylinder is fixedly mounted in the mounting hole, the upper end of the corner cylinder is provided with a fourth piston rod capable of extending upwards and rotating, and the upper end of the fourth piston rod is fixedly provided with the pressing head.

5. The cross axle centering mechanism according to claim 3, further comprising a corner cylinder and a pressing head, wherein the middle portion of the supporting block is provided with a vertically through mounting hole, the corner cylinder is fixedly mounted in the mounting hole, the upper end of the corner cylinder is provided with a fourth piston rod capable of extending upwards and rotating, and the upper end of the fourth piston rod is fixedly provided with the pressing head.

6. The cross-shaft centering mechanism of claim 4, wherein the underside of the rear end of the ram is provided with a rearwardly opening indent.

7. The cross-shaft centering mechanism of claim 5, wherein the underside of the rear end of the ram is provided with a rearwardly opening indent.

8. A cross-shaft centering mechanism according to claim 1, 2, 5, 6 or 7, wherein the support slot is a V-shaped slot opening upwardly.

9. The cross-shaft centering mechanism of claim 3, wherein the support slot is a V-shaped slot opening upwardly.

10. The cross-shaft centering mechanism of claim 4, wherein the support slot is a V-shaped slot opening upwardly.