CN113370111A

CN113370111A - Universal joint adjusting device

Info

Publication number: CN113370111A
Application number: CN202110426447.5A
Authority: CN
Inventors: 梁勇; 徐建华; 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: 2021-09-10

Abstract

The invention relates to the technical field of lifting clamping tools, in particular to a universal joint adjusting device which comprises an assembling platform, an adjusting column, a positioning pin, a clamping assembly and a lifting device. The universal joint positioning device is reasonable and compact in structure, the clamping groove and the guide pin can facilitate positioning of the universal joint and simplify fixing operation, the rotary driving mechanism can rotate different parts of the cross-axle universal joint to assembly positions to facilitate subsequent assembly, the universal joint moves upwards when the lower wedge block moves rightwards due to the arrangement of the lifting device, the universal joint moves downwards under the action of gravity when the lower wedge block moves leftwards, the center height of the universal joint is enabled to be consistent with the center to be assembled, the lifting height of the adjusting column is automatically adjusted by arranging the lifting electric cylinder and the displacement sensor, the lifting height of the adjusting column is accurately achieved, different machining deviations of the cross-axle universal joint can be adapted, the applicability is enhanced, the guide pin and the positioning key can avoid deviation when the lower wedge block moves leftwards and rightwards, and the positioning accuracy of the assembly of the cross-axle universal joint is improved.

Description

Universal joint adjusting device

Technical Field

The invention relates to the technical field of lifting clamping tools, in particular to a universal joint adjusting device.

Background

The cross shaft type universal joint is a novel basic transmission part, is popular in the industries of traffic, coal, metallurgy and the like because of the characteristics of large inter-shaft break angle, stable transmission, compact structure, convenient maintenance and the like, can realize variable-angle power transmission as a key part in an automobile transmission system, is used for changing the position and the direction of a transmission axis, and is a joint part of an automobile steering and transmission driving system. With the rapid development of China as the largest automobile producing country in the world and the automobile part industry, the demand of the cross-shaft universal joint is larger and larger, the requirement on the product quality is higher and higher, and the competition in the industry is more and more intense. The cross shaft assembly is used as a main body part of the cross shaft type universal joint and is an indispensable part of the cross shaft type universal joint. The quality of the cross shaft assembly directly affects the fatigue life of the cross shaft type universal joint and affects the safety performance and reliability of the whole vehicle.

At present, in the assembly process of a universal joint, four shaft ends of a cross shaft need to be assembled, in the existing transmission assembly process, the cross shaft type universal joint is limited by an integral fork head, the cross shaft and a universal joint connecting disc are difficult to position and difficult to assemble smoothly, if the control is not good, the assembly among the cross shaft, the connecting disc and a bearing cup fails, parts can be damaged in severe cases, the cross shaft type universal joint needs to be transferred to a plurality of stations for assembly in the assembly process, the assembly difficulty is increased, the positioning and transferring time is prolonged, the assembly efficiency of the cross shaft assembly is reduced, the assembly quality is unstable, the automation degree is low, the failure rate is high, the image of an enterprise is influenced, and the production cost of the enterprise is increased.

Disclosure of Invention

The invention provides a universal joint adjusting device, overcomes the defects of the prior art, and can effectively solve the problems of low automation degree and production line flexibility, poor positioning accuracy, complex assembly process, high failure rate and poor economic benefit in the assembly process of the conventional cross-axle universal joint.

The technical scheme of the invention is realized by the following measures: a universal joint adjusting device comprises an assembling platform, adjusting columns, positioning pins, clamping assemblies and a lifting device, wherein a fixed seat is fixedly mounted on the assembling platform, a moving seat is arranged in the fixed seat, the adjusting columns with the upper ends located above the moving seat are mounted in the moving seat in a rotating mode, clamping grooves capable of transmitting torque in a positive and negative two-way mode are formed in the upper ends of the adjusting columns, at least one positioning pin matched with a through hole in connection with the end face of a universal joint is arranged at the upper ends of the adjusting columns, the upper ends of the positioning pins are in a truncated cone shape with a small upper portion and a large lower portion, a plurality of clamping assemblies capable of being synchronously and tightly mounted on the end portions of the universal joints at the upper ends of the adjusting columns are distributed on the assembling platform along the circumference of the central axis of the adjusting columns at intervals, a rotation driving mechanism capable of rotating the adjusting columns is fixedly mounted in the moving seat, the lifting device capable of enabling the moving seat and the adjusting columns to move upwards and synchronously is arranged in the fixed seat, and comprises a lifting electric cylinder, The upper wedge block is arranged at the lower side of the moving seat, a positioning groove with an opening opposite to that of the lower side of the moving seat is arranged at the upper side of the upper wedge block, a positioning key is arranged in the positioning groove, the lower side surface of the upper wedge block is an inclined surface with a higher left side and a lower right side, a lower wedge block with an inclined surface with an upper side surface matched with the lower side surface of the upper wedge block is arranged on the fixed seat, a guide groove which is communicated up and down is arranged at the right end of the lower wedge block, a guide pin which is matched with the guide groove and is fixedly arranged on the fixed seat at the lower end of the guide groove, the lifting electric cylinder is fixedly arranged on the fixed seat below the moving seat, a lifting piston rod with the right end extending out of the lifting electric cylinder and fixedly arranged with the left side of the lower wedge block is arranged in the lifting electric cylinder, the displacement sensor with the lower side of the right end of the upper wedge block is arranged at the right part of the fixed seat, and the upper computer and the displacement sensor are both connected with the controller, the controller is connected with the lifting electric cylinder.

The following is further optimization or/and improvement of the technical scheme of the invention:

the center of the assembly platform can be provided with a rotating hole which is communicated up and down, the lower side of the assembly platform is fixedly installed with the upper side of the fixed seat, the adjusting column comprises a mandrel and a positioning fluted disc, the outer side of the middle part of the mandrel is rotatably installed in the rotating hole, the upper end of the mandrel corresponding to the upper position of the assembly platform is detachably provided with the positioning fluted disc, a clamping groove is arranged on the upper end surface of the positioning fluted disc, the upper end surface of the positioning fluted disc is provided with an installation screw hole corresponding to a connecting through hole of the end surface of the universal joint, the outer side of the lower part of the positioning pin is screwed in the installation screw hole, the moving seat comprises a moving plate, a guide column and a bearing seat, the inner side of the lower part of the rotating hole is coaxially sleeved on the outer side of the, be equipped with a plurality of interval distribution's guiding hole on the assembly platform, the equal fixed mounting of assembly platform downside that corresponds every guiding hole position has the uide bushing, equal coaxial cover is equipped with the guide post that corresponds position fixed mounting together in upper end and bearing frame upper end in every uide bushing, all there is a plurality of guide groove from top to bottom along the circumference equipartition on every uide bushing inner wall, all install a plurality of rolling element from top to bottom in every guide groove in proper order, the lower extreme of every guide post all passes behind the uide bushing 14 and corresponds position fixed mounting with movable plate 3 and be in the same place.

The lower end of the mandrel is fixedly provided with a gear, the rotation driving mechanism comprises a push-pull cylinder and a rack meshed with the gear, the push-pull cylinder is fixedly arranged on the upper side of the movable plate, and a push-pull piston rod which extends out of the outer side of the push-pull cylinder and is fixedly arranged together with the end part of the rack is arranged in the push-pull cylinder.

The upper end face of the positioning fluted disc is at least provided with two tooth areas, each tooth area is provided with a plurality of strip-shaped clamping grooves which are arranged in parallel at intervals, an included angle can be formed between the strip-shaped clamping grooves of at least two tooth areas, each tooth area is provided with a connecting hole which is communicated up and down, and a lightening hole which is communicated up and down is arranged on the tooth area corresponding to the position between every two adjacent connecting holes.

The upper end of the mandrel can be fixed with a connecting flange which is detachably mounted with the positioning fluted disc, the outer side of the connecting flange is sleeved with a buffer ring with the lower end contacting with the upper end of the bearing seat, and at least two bearings are sequentially arranged between the outer side of the mandrel and the inner side of the bearing seat from top to bottom.

The assembling platform can be provided with four guide holes, and the central axes of the four guide holes are uniformly distributed along the circumference of the central axis of the mandrel.

Four clamping assemblies can be distributed on the assembly platform at intervals along the circumference of the central axis of the mandrel, each clamping assembly comprises a lever cylinder, a connecting plate, a pressure rod and a chuck, the lower end of each lever cylinder is fixedly mounted with the assembly platform, a lever piston rod extending out of the lever cylinder is arranged on each lever cylinder, the upper end of each lever piston rod is hinged to one end of each pressure rod, the chuck, the lower end of which is close to the upper end face of the positioning fluted disc, is fixed at the other end of each pressure rod, the connecting plate is arranged between each chuck and each lever piston rod, and the upper end and the lower end of each connecting plate are hinged to the corresponding positions of the upper sides of the pressure rods and the lever cylinders respectively.

The lower end surface of the chuck close to the adjusting column can be a convex curved surface.

The universal joint positioning device is reasonable and compact in structure, the clamping groove and the guide pin can facilitate positioning of the universal joint and simplify fixing operation, the rotary driving mechanism can rotate different parts of the cross-axle universal joint to assembly positions to facilitate subsequent assembly, the universal joint moves upwards when the lower wedge block moves rightwards due to the arrangement of the lifting device, the universal joint moves downwards under the action of gravity when the lower wedge block moves leftwards, the center height of the universal joint is enabled to be consistent with the center to be assembled, the lifting height of the adjusting column is automatically adjusted by arranging the lifting electric cylinder and the displacement sensor, the lifting height of the adjusting column is accurately achieved, different machining deviations of the cross-axle universal joint can be adapted, the applicability is enhanced, the guide pin and the positioning key can avoid deviation when the lower wedge block moves leftwards and rightwards, and the positioning accuracy of the assembly of the cross-axle universal joint is improved.

Drawings

FIG. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic top view of the present invention.

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2.

FIG. 4 is a schematic perspective view of the positioning fluted disc and the positioning pin during assembly.

Fig. 5 is a schematic sectional structure view of the guide sleeve of the present invention.

Fig. 6 is a circuit block diagram of the present invention.

The codes in the figures are respectively: the structure comprises an assembly platform 1, a fixed seat 2, a movable plate 3, a lifting electric cylinder 4, a lifting piston rod 5, an upper wedge block 6, a lower wedge block 7, a gear 8, a push-pull air cylinder 9, a push-pull piston rod 10, a rack 11, a core shaft 12, a guide post 13, a guide sleeve 14, a bearing seat 15, a bearing 16, a positioning fluted disc 17, a positioning fluted disc 18, a pressure rod 19, a lever cylinder 20, a chuck 20, a guide pin 21, a positioning pin 22, a positioning key 23, a rolling body 24, a clamping groove 25, a guide groove 26, a connecting hole 27, a lightening hole 28, a buffer ring 29 and a connecting flange 30.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of 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 is further described with reference to the following examples and figures:

as shown in the attached figures 1, 2, 3, 4, 5 and 6, the universal joint adjusting device comprises an assembly platform 1, an adjusting column, a positioning pin 22, a clamping assembly and a lifting device, wherein a fixed seat 2 is fixedly installed on the assembly platform 1, a movable seat is arranged in the fixed seat 2, the adjusting column with the upper end positioned above the movable seat is rotatably installed in the movable seat, a clamping groove 25 capable of bidirectionally transmitting torque forward and backward is arranged at the upper end of the adjusting column, at least one positioning pin 22 matched with a through hole for connecting the end surface of the universal joint is arranged at the upper end of the adjusting column, the upper end of the positioning pin 22 is in a circular truncated cone shape with a small upper part and a large lower part, a plurality of clamping assemblies capable of synchronously pressing and installing the end part of the universal joint at the upper end of the adjusting column are distributed at intervals on the circumference of the central axis of the adjusting column on the assembly platform 1, a rotary driving mechanism capable of rotating the adjusting column is fixedly installed in the movable seat, and a lifting device capable of enabling the movable seat and the adjusting column to synchronously move upwards is arranged in the fixed seat 2, the lifting device comprises a lifting electric cylinder 4, an upper wedge block 6, a lower wedge block 7, a guide pin 21, a displacement sensor, a controller and an upper computer, wherein the lower side of a movable seat is provided with the upper wedge block 6, the upper side of the upper wedge block 6 and the lower side of the movable seat are provided with positioning grooves with opposite openings, positioning keys 23 are arranged in the positioning grooves, the lower side of the upper wedge block 6 is an inclined plane with a higher left side and a lower right side, a lower wedge block 7 with an inclined plane with an upper side matched with the lower side of the upper wedge block 6 is arranged on a fixed seat 2, the right end of the lower wedge block 7 is provided with a guide groove 26 which is communicated up and down, the guide pin 21 which is matched with the guide groove 26 and is fixedly arranged on the fixed seat 2 at the lower end is arranged in the guide groove 26, the lifting electric cylinder 4 is fixedly arranged on the fixed seat 2 below the movable seat, the lifting electric cylinder 4 is internally provided with a lifting piston rod 5 with the right end which extends out of the lifting electric cylinder 4 and is fixedly arranged on the left side of the lower wedge block 7, the right part of the fixed seat 2 is provided with the displacement sensor with the lower side of the upper wedge block 6, the upper computer and the displacement sensor are both connected with a controller, and the controller is connected with the lifting electric cylinder 4.

According to the requirement, the assembly platform 1 is a plate-shaped structure, the lower side of the assembly platform 1 is fixedly provided with a support frame, the number of the positioning pins 22 is 1, the lifting electric cylinder 4 is a well-known electric cylinder, the displacement sensor is a well-known technology, such as a linear displacement sensor, the controller is known in the art, such as a PLC controller or LEC6 series controller, the host computer is known in the art, like industrial control computer or teaching box, 2 upsides of fixing base also can be equipped with about and to and with lower wedge 7 assorted positioning groove, lower wedge 7 is along controlling to slidable mounting in positioning groove, go up wedge 6 and remove the seat and be in the same place through four matrix distribution's bolt mounting, the clearance that bolted connection mode exists can be eliminated to the navigation key 23, the location is more accurate, can form the installation cavity between fixing base 2 and the assembly platform 1 to in the installation of removing subassembly such as seat. In the using process, in order to realize better torque transmission of the existing cross-axle universal joint, a raised rack is arranged on the end surface of the cross-axle universal joint connected with a power output, and the raised rack is named as CN 201711168571.6: a universal joint fork flange plate can facilitate positioning of a universal joint, enable torque to be transmitted between an adjusting column and the universal joint in a two-way accurate mode, can assemble or process multiple positions of the universal joint cross shaft, simplify fixing operation, can better fix the end portion of the universal joint cross shaft by arranging a clamping assembly, improve stability in an assembling process, can rotate different parts of the universal joint cross shaft to assembling positions by arranging a rotation driving mechanism, facilitate subsequent assembling, reduce transfer and repeated positioning in assembling of the universal joint cross shaft, reduce process complexity, improve working efficiency, and drive a moving seat, the adjusting column and the universal joint cross shaft clamped on the adjusting column to move upwards by arranging a lifting device, when a lower wedge block 7 moves rightwards, the lower wedge block 7 pushes an upper wedge block 6 to move upwards, when the lower wedge block 7 moves leftwards, the lower wedge block 7, the moving seat, the adjusting column and the universal joint clamped on the adjusting column move downwards under the action of gravity, so that the center height of the universal joint clamped on the adjusting column is consistent with the center to be assembled, the lifting height of the adjusting column is accurately adjusted by arranging an upper computer, a controller and a displacement sensor, the processing deviation of different universal joints can be adapted, the applicability of the invention is enhanced, distance data between the centers and the end surfaces of four holes of a connecting disc of the universal joint is input into the upper computer, the upper computer transmits the data to the controller and controls the lifting height of a lifting piston rod 5 of a lifting electric cylinder 4, the displacement sensor transmits the displacement data in the lifting process to the controller and compares the displacement data with a set value, and the lifting electric cylinder 4 is controlled to stop moving when the displacement data is matched with the set value, through setting up uide pin 21 and positioning key 23, can avoid lower voussoir 7 to remove when moving about and take place the skew, guarantee to remove the rising displacement precision of seat, improve the positioning accuracy of the assembly of cross axle type universal joint. The invention has the characteristics of reasonable and compact structure, convenient use, safety, labor saving, simplicity, convenience and high efficiency.

The universal joint adjusting device can be further optimized or/and improved according to actual needs:

as shown in the attached

drawings

1, 2, 3, 4 and 5, a rotation hole which is through up and down is arranged in the center of an assembly platform 1, the lower side of the assembly platform 1 is fixedly installed with the upper side of a fixed seat 2, an adjusting column comprises a core shaft 12 and a positioning fluted disc 17, the outer side of the middle part of the core shaft 12 is rotatably installed in the rotation hole, the upper end of the core shaft 12 corresponding to the upper position of the assembly platform 1 is detachably installed with the positioning fluted disc 17, a clamping groove 25 is arranged on the upper end surface of the positioning fluted disc 17, the upper end surface of the positioning fluted disc 17 is provided with an installation screw hole corresponding to a connecting through hole of the end surface of a universal joint, the outer side of the lower part of a positioning pin 22 is screwed in the installation screw hole, a moving seat comprises a moving plate 3, a guide column 12 and a bearing seat 15, a bearing seat 15 with the inner side of the lower part coaxially sleeved on the outer side of the core shaft 12 is arranged in the rotation hole, the upper end of the bearing seat 15 is contacted with the lower end of the moving plate 17, the moving plate is arranged below the core 12, a rotation driving mechanism is fixedly installed on the upper side of the 3 and can rotate the core shaft 12, go up 6 upsides of voussoir and 3 downside fixed mounting of movable plate together, the guiding hole that is equipped with a plurality of interval distribution on assembly platform 1, the equal fixed mounting of 1 downside of assembly platform that corresponds every guiding hole position has uide bushing 14, equal coaxial cover is equipped with upper end and bearing frame 15 upper end and corresponds guide post 13 that position fixed mounting is in the same place in every uide bushing 14, all there is a plurality of guide groove from top to bottom along the circumference equipartition on every uide bushing 14 inner wall, all install a plurality of rolling element 24 in proper order from top to bottom in every guide groove, the lower extreme of every guide post 13 all passes behind the uide bushing 14 and corresponds position fixed mounting with movable plate 3 together.

The rolling elements 24 are known in the art, such as steel balls or hemispheres, and the guide sleeve 14 may also be a known steel ball guide sleeve 14, as desired. In the use process, the mandrel 12 and the rotation driving mechanism are convenient to mount through the arrangement, the installation is simple, the positioning column is arranged, the guide and positioning effects can be achieved when the cross-axle universal joint is mounted, the cross-axle universal joint is prevented from being misplaced during installation, the straightness of the adjusting column in the up-and-down moving process can be improved through the arrangement of the guide column 13, the stability of the universal joint is improved, the friction force between the guide column 13 and the guide sleeve 14 can be reduced through the arrangement of the rolling body 24, the mandrel 12 is more flexible when descending, the positioning fluted disc 17 can be further arranged according to disc parts needing to be machined or assembled, and the flexibility degree of a production line is improved.

As shown in fig. 1 and 3, a gear 8 is fixedly mounted at the lower end of the mandrel 12, the rotation driving mechanism comprises a push-pull cylinder 9 and a rack 11 meshed with the gear 8, the push-pull cylinder 9 is fixedly mounted at the upper side of the moving plate 3, and a push-pull piston rod 10 which extends out of the push-pull cylinder 9 and is fixedly mounted with the end of the rack 11 is arranged in the push-pull cylinder 9.

The push-pull cylinder 9 is a conventionally known cylinder as required. In the use process, through the arrangement, the push-pull piston rod 10 of the push-pull air cylinder 9 extends or retracts to enable the mandrel 12 to rotate in a reciprocating mode in the clockwise or anticlockwise direction, and through the arrangement of the rack 11, the rotation angle of the gear 8 can be accurately controlled, so that the assembly of the universal joint cross shaft in multiple angle directions can be met.

As shown in fig. 1, 2, 3, and 4, the upper end surface of the positioning fluted disc 17 is provided with at least two tooth areas, each tooth area is provided with a plurality of strip-shaped slots 25 arranged in parallel at intervals, an included angle can be formed between the strip-shaped slots 25 of at least two tooth areas, each tooth area is provided with a through connecting hole 27, and a weight-reducing hole 28 is arranged on the tooth area corresponding to the position between every two adjacent connecting holes 27.

According to the requirement, four tooth areas are symmetrically distributed on the upper end face of the positioning fluted disc 17, strip-shaped convex teeth matched with the strip-shaped clamping grooves 19 of the positioning fluted disc are distributed on the end face of the cross shaft type universal joint or the end face of the disc part used in cooperation with the positioning fluted disc, so that the strip-shaped convex teeth can be clamped into the corresponding strip-shaped clamping grooves 19 when the universal joint is installed, bidirectional accurate torque transmission can be achieved, each connecting hole 27 penetrates through the three clamping grooves 25 on the corresponding tooth areas, the mass of the positioning fluted disc 17 can be reduced by arranging lightening holes 28, the axial load of the mandrel 12 and the inertia of the mandrel 12 in the rotating process are further reduced, and the reliability in the operating process is improved.

As shown in fig. 2, the assembly platform 1 is provided with four guide holes, and the central axes of the four guide holes are uniformly distributed along the circumference of the central axis of the mandrel 12.

In the use process, through the arrangement, the surface of the universal joint cross can be better clamped, so that the surface of the universal joint cross is uniformly stressed, and the stability of the universal joint cross in the assembling process is ensured.

As shown in fig. 1 and 3, a connecting flange 30 detachably mounted with the positioning fluted disc 17 is fixed at the upper end of the mandrel 12, a buffer ring 29 whose lower end contacts with the upper end of the bearing seat 15 is sleeved outside the connecting flange 30, and at least two bearings 16 are sequentially arranged between the outer side of the mandrel 12 and the inner side of the bearing seat 15 from top to bottom.

According to the requirement, the bearing 16 can be the prior known technology, such as a thrust bearing 16, the mandrel 12 is a stepped shaft with a large upper end and a small lower end, the mandrel 12 and the connecting flange 30 are integrally arranged, the connecting flange 30 and the positioning fluted disc 17 are detachably mounted together through a key for transmitting torque and four bolts uniformly distributed along the circumference, a lock nut for limiting the bearing 16 is fixedly mounted on the outer side of the lower part of the mandrel 12, the buffer ring 29 can be a copper buffer ring 29 or a flexible material buffer ring 29, and a space is arranged between the upper end of the buffer ring 29 and the lower end of the positioning fluted disc 17. In the use, through setting up flange 30, be convenient for installation and maintenance of dabber 12 and location fluted disc 17, also can different location fluted disc 17 of quick replacement in order to adapt to different cross axle type universal joints, through setting up bearing 16, can reduce friction and answer pressure, make dabber 12 work smoothly, and then prolong its durability, through setting up buffer ring 29, dabber 12 is ascending or descending the in-process, can avoid taking place the striking after location fluted disc 17 and the relative axial displacement of bearing frame 15, reduce the fault rate.

As shown in fig. 1, 2 and 3, four clamping assemblies are distributed on the assembly platform 1 at intervals along the circumference of the central axis of the mandrel 12, each clamping assembly comprises a lever cylinder 19, a connecting plate, a pressure rod 18 and a chuck 20, the lower end of the lever cylinder 19 is fixedly mounted with the assembly platform 1, a lever piston rod extending out of the lever cylinder 19 is arranged on the lever cylinder 19, the upper end of the lever piston rod is hinged with one end of the pressure rod 18, the other end of the pressure rod 4 is fixedly provided with the chuck 20, the lower end of the chuck 20 is close to the upper end face of the positioning fluted disc 17, the connecting plate is arranged between the chuck 20 and the lever piston rod, and the upper end and the lower end of the connecting plate are hinged with the upper corresponding positions of the pressure rod 18 and the lever cylinder 19 respectively.

According to the demand, lever cylinder 19, connecting plate and depression bar 18 constitute current well-known work piece clamping system, four clamping components two double symmetry distribute, the connecting plate includes two risers that are located 4 bilateral symmetry of depression bar respectively and distribute, when the lever piston rod withdraws downwards, chuck 20 can open completely under a plurality of articulated rod linkage, thereby be convenient for wait to press from both sides tight work piece and can place smoothly in location fluted disc 17 upper end, later when the lever piston rod upwards stretches out, chuck 3 is close to the one end downside of location fluted disc 17 and can support and press from both sides tight work piece up end, thereby realize the clamping operation, wherein two adjacent connecting hole 27 are located between two adjacent chucks 20, four lever cylinders 19 all can be connected with the controller, also can the independent control. In the use process, through the arrangement, after the lever piston rod extends upwards, one end of the chuck 20 close to the rotating column moves downwards, and finally the cross-axle type universal joint arranged at the upper end of the positioning fluted disc 17 is pressed tightly, a plurality of circumferential parts of the cross-axle type universal joint arranged at the upper end of the positioning fluted disc 17 need to be assembled, the positioning fluted disc 17 needs to be rotated, and the clamping assembly can quickly realize pressing or loosening actions, so that the production beat is accelerated, and the production efficiency is improved.

As shown in fig. 1, 2 and 3, the lower end surface of the clamping head 20 close to the adjusting column is a convex curved surface.

According to requirements, the convex curved surface is a semi-cylindrical surface. In the use process, the clamping head 20 can be J-shaped, the clamping head 20 and the pressing rod 18 are integrally arranged, through the arrangement, the end faces of the universal joint cross in different shapes can be tightly pressed, the damage of the clamping head 20 to the surface of the universal joint cross can be avoided, and the assembling quality is improved.

The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims

1. The utility model provides a universal joint adjusting device, its characterized in that includes assembly platform, adjust the post, the locating pin, clamping component and elevating gear, fixed mounting has the fixing base on the assembly platform, be equipped with in the fixing base and remove the seat, it installs the regulation post that the upper end is located and removes the seat top to remove the seat internal rotation, it is equipped with the draw-in groove that can positive and negative two-way transmission moment of torsion to adjust the post upper end, it is equipped with at least one and universal joint terminal surface connecting hole assorted locating pin to adjust the post upper end, the upper end of locating pin is big end down's round platform shape, the last central axis circumference interval distribution that follows the regulation post of assembly platform has a plurality of clamping component that can compress tightly in step and install the universal joint tip in the regulation post upper end, fixed mounting has the rotation actuating mechanism that can make the regulation post pivoted in the removal seat, be equipped with the elevating gear that can make removal seat and regulation post synchronous translation upwards in the fixing base, elevating gear includes the lift electric jar, The upper wedge block is arranged at the lower side of the moving seat, a positioning groove with an opening opposite to that of the lower side of the moving seat is arranged at the upper side of the upper wedge block, a positioning key is arranged in the positioning groove, the lower side surface of the upper wedge block is an inclined surface with a higher left side and a lower right side, a lower wedge block with an inclined surface with an upper side surface matched with the lower side surface of the upper wedge block is arranged on the fixed seat, a guide groove which is communicated up and down is arranged at the right end of the lower wedge block, a guide pin which is matched with the guide groove and is fixedly arranged on the fixed seat at the lower end of the guide groove, the lifting electric cylinder is fixedly arranged on the fixed seat below the moving seat, a lifting piston rod with the right end extending out of the lifting electric cylinder and fixedly arranged with the left side of the lower wedge block is arranged in the lifting electric cylinder, the displacement sensor with the lower side of the right end of the upper wedge block is arranged at the right part of the fixed seat, and the upper computer and the displacement sensor are both connected with the controller, the controller is connected with the lifting electric cylinder.

2. The gimbal adjustment device according to claim 1, wherein the assembly platform has a rotation hole extending therethrough, the lower side of the assembly platform is fixedly mounted to the upper side of the fixing base, the adjustment post comprises a core shaft and a positioning gear, the outer side of the middle portion of the core shaft is rotatably mounted in the rotation hole, the upper end of the core shaft corresponding to the upper position of the assembly platform is detachably mounted with the positioning gear, the engaging groove is formed in the upper end surface of the positioning gear, the upper end surface of the positioning gear is provided with a mounting screw hole corresponding to the connecting hole of the end surface of the gimbal, the outer side of the lower portion of the positioning pin is screwed into the mounting screw hole, the movable base comprises a movable plate, a guide post and a bearing seat, the lower portion of the movable base is coaxially sleeved to the outer side of the core shaft, the upper end of the bearing seat contacts with the lower end of the positioning gear, the movable plate is disposed below the core shaft, the rotation driving mechanism is fixedly mounted to the upper side of the movable plate and can rotate the core shaft, go up wedge upside and movable plate downside fixed mounting together, the last guiding hole that is equipped with a plurality of interval distribution of assembly platform, the equal fixed mounting of assembly platform downside that corresponds every guiding hole position has the uide bushing, equal coaxial cover is equipped with the upper end and corresponds the guide post that position fixed mounting is in the same place with the bearing frame upper end in every uide bushing, all there is a plurality of guide groove from top to bottom along the circumference equipartition on every uide bushing inner wall, all install a plurality of rolling element in proper order from top to bottom in every guide groove, the lower extreme of every guide post corresponds position fixed mounting with the movable plate after all passing the uide bushing together.

3. The gimbal adjustment device according to claim 2, wherein the gear is fixedly mounted at the lower end of the spindle, the rotational driving mechanism comprises a push-pull cylinder and a rack engaged with the gear, the push-pull cylinder is fixedly mounted on the upper side of the movable plate, and a push-pull piston rod extending outside the push-pull cylinder and fixedly mounted with the end of the rack is disposed in the push-pull cylinder.

4. The universal joint adjusting device according to claim 2 or 3, wherein the positioning fluted disc is provided at least two tooth areas on the upper end surface thereof, each tooth area is provided with a plurality of strip-shaped clamping grooves which are arranged in parallel at intervals, an included angle is formed between the strip-shaped clamping grooves of at least two tooth areas, each tooth area is provided with a connecting hole which is communicated up and down, and a lightening hole which is communicated up and down is arranged on the tooth area corresponding to the position between each two adjacent connecting holes.

5. The universal joint adjusting device according to claim 2 or 3, wherein a connecting flange detachably mounted with the positioning fluted disc is fixed at the upper end of the mandrel, a buffer ring with the lower end contacting with the upper end of the bearing seat is sleeved outside the connecting flange, and at least two bearings are sequentially arranged between the outer side of the mandrel and the inner side of the bearing seat from top to bottom; or/and four guide holes are arranged on the assembling platform, and the central axes of the four guide holes are uniformly distributed along the circumference of the central axis of the mandrel.

6. The universal joint adjusting device according to claim 4, wherein a connecting flange detachably mounted with the positioning fluted disc is fixed at the upper end of the mandrel, a buffer ring with a lower end contacting with the upper end of the bearing seat is sleeved outside the connecting flange, and at least two bearings are sequentially arranged between the outer side of the mandrel and the inner side of the bearing seat from top to bottom; or/and four guide holes are arranged on the assembling platform, and the central axes of the four guide holes are uniformly distributed along the circumference of the central axis of the mandrel.

7. The universal joint adjusting device according to claim 2, 3 or 6 or the above, characterized in that four clamping assemblies are distributed on the assembly platform at intervals along the circumference of the central axis of the mandrel, each clamping assembly comprises a lever cylinder, a connecting plate, a pressure rod and a chuck, the lower end of the lever cylinder is fixedly mounted with the assembly platform, a lever piston rod extending out of the lever cylinder is arranged on the lever cylinder, the upper end of the lever piston rod is hinged with one end of the pressure rod, the other end of the pressure rod is fixedly provided with the chuck, the lower end of the chuck is close to the upper end face of the positioning fluted disc, the connecting plate is arranged between the chuck and the lever piston rod, and the upper end and the lower end of the connecting plate are hinged with the corresponding positions of the upper sides of the pressure rod and the lever cylinder respectively.

8. The universal joint adjusting device according to claim 4 or the above, characterized in that four clamping components are distributed on the assembly platform at intervals along the circumference of the central axis of the mandrel, each clamping component comprises a lever cylinder, a connecting plate, a pressure rod and a chuck, the lower end of the lever cylinder is fixedly mounted with the assembly platform, a lever piston rod extending out of the lever cylinder is arranged on the lever cylinder, the upper end of the lever piston rod is hinged with one end of the pressure rod, the other end of the pressure rod is fixedly provided with a chuck, the lower end of the chuck is close to the upper end face of the positioning fluted disc, a connecting plate is arranged between the chuck and the lever piston rod, and the upper end and the lower end of the connecting plate are respectively hinged with the corresponding positions of the upper sides of the pressure rod and the lever cylinder.

9. The universal joint adjusting device according to claim 5 or claim, wherein four clamping assemblies are distributed on the assembly platform at intervals along the circumference of the central axis of the mandrel, each clamping assembly comprises a lever cylinder, a connecting plate, a pressure rod and a chuck, the lower end of the lever cylinder is fixedly mounted with the assembly platform, a lever piston rod extending out of the lever cylinder is arranged on the lever cylinder, the upper end of the lever piston rod is hinged with one end of the pressure rod, the other end of the pressure rod is fixedly provided with the chuck, the lower end of the chuck is close to the upper end face of the positioning fluted disc, the connecting plate is arranged between the chuck and the lever piston rod, and the upper end and the lower end of the connecting plate are respectively hinged with the corresponding positions of the upper sides of the pressure rod and the lever cylinder.

10. A joint adjusting apparatus according to claim 7, 8 or 9, wherein the lower end surface of the collet adjacent the adjusting post is convexly curved.