CN211890575U

CN211890575U - Universal clamp for press mounting of transmission shaft welding joint

Info

Publication number: CN211890575U
Application number: CN202020145194.5U
Authority: CN
Inventors: 毕远见; 刘兆宝
Original assignee: Fawer Automotive Parts Co Ltd
Current assignee: Fawer Automotive Parts Co Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-11-10
Anticipated expiration: 2030-01-22

Abstract

The utility model belongs to the technical field of the pressure equipment anchor clamps technique of welding fork and specifically relates to a transmission shaft welding closes a pressure equipment universal fixturing, and transmission shaft welding fastener pressure equipment universal fixturing includes: the device comprises a workbench, a driving device arranged on the workbench, and a first abutting member and a second abutting member which are connected with the driving device, wherein the driving device can synchronously drive the first abutting member and the second abutting member to move in the same direction or in opposite directions; the parts of the first abutting member and the second abutting member facing each other are in a step shape. Therefore, the universal fixture for press mounting of the transmission shaft welding joint pieces is suitable for two ear holes of welding forks with different sizes, and further can clamp and position the welding forks with different sizes.

Description

Universal clamp for press mounting of transmission shaft welding joint

Technical Field

The application relates to the technical field of press fitting clamps of welding forks, in particular to a universal clamp for press fitting of a welding joint of a transmission shaft.

Background

At present, a transmission shaft plays an important role in transmitting torque in a finished automobile transmission system. The load of the whole vehicle is different, so the torque transmitted by the transmission shaft is different. The drive shaft can be divided into several specifications according to the torque transmitted by the drive shaft.

In the assembly process of the transmission shaft, three parts of the welding fork, the shaft tube and the spline sleeve are in interference fit and pressed into a welding process assembly to form the transmission shaft.

At present, common transmission shaft assembly lines are produced in a mixed line mode, one assembly line needs to finish the assembly process of transmission shafts with a plurality of specifications, and 3 parts have phase requirements on the central axis of lug holes of welding forks and spline teeth in spline sleeves in the press mounting process, so that positioning tool fixtures of the welding forks need to be replaced in the process of press mounting of three parts with different specifications, namely the positioning tool fixtures of the welding forks are poor in universality.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a transmission shaft welds joint spare pressure equipment universal fixturing, has solved the welding fork that exists among the prior art to a certain extent and has adopted the poor technical problem of commonality of location frock clamp in the pressure equipment in-process.

The application provides a transmission shaft welds joint pressure equipment universal fixturing includes: the device comprises a workbench, a driving device arranged on the workbench, and a first abutting member and a second abutting member which are connected with the driving device, wherein the driving device can synchronously drive the first abutting member and the second abutting member to move in the same direction or in opposite directions;

the parts of the first abutting member and the second abutting member facing each other are stepped.

In the above technical solution, further, the universal fixture for press-fitting of the welding joint of the transmission shaft further includes a first transmission mechanism and a second transmission mechanism which are in transmission connection;

the driving device drives the first abutting member to approach or separate from the second abutting member along a first direction through the first transmission mechanism, and the driving device can synchronously drive the second abutting member to approach or separate from the first abutting member along the first direction through the second transmission mechanism.

In any of the above technical solutions, further, the first transmission mechanism includes a first transmission rod and a second transmission rod;

one end of the first transmission rod piece is connected to the driving device, and the other end, opposite to the first transmission rod piece, of the first transmission rod piece is connected to the first abutting component;

the second transmission rod piece is positioned between the driving device and the first abutting component, one end of the second transmission rod piece is connected with the first transmission rod piece, and the other opposite end of the second transmission rod piece is in transmission connection with the second transmission mechanism;

the driving device can drive the first transmission rod piece to drive the second transmission rod piece to do linear motion along the first direction.

In any one of the above technical solutions, further, the universal fixture for press-fitting of the transmission shaft welded joint further includes a stroke adjusting assembly, the stroke adjusting assembly is disposed between the driving device and the first transmission mechanism, and the stroke adjusting assembly is used for adjusting a working stroke of the driving device;

the stroke adjusting assembly comprises a first limiting member and a second limiting member, the first limiting member is connected to one end, far away from the first abutting member, of the first transmission rod piece, and the second limiting member is detachably sleeved at the output end of the driving device;

the first limiting member is provided with a through hole, the output end of the driving device is inserted into the through hole, and the second limiting member abuts against the end portion, facing the driving device, of the first limiting member.

In any of the above technical solutions, further, the driving device is an air cylinder.

In any of the above technical solutions, further, the second transmission mechanism includes a gear, and a first rack and a second rack located on both sides of the gear;

the first rack is connected to the second transmission rod piece, the gear is meshed with the first rack, and the second rack is meshed with the gear; the second rack is connected to the second abutting member.

In any of the above technical solutions, further, the universal fixture for press-fitting of the welding joint of the transmission shaft further includes a first bushing and a second bushing; the first bushing and the second bushing are oppositely arranged on the workbench at intervals;

the first bushing is provided with a first mounting hole, and the first abutting component is inserted into the first mounting hole; the second bushing is provided with a second mounting hole, and the second abutting member is inserted in the second mounting hole.

In any of the above technical solutions, further, the universal fixture for press-fitting of the welding-fit part of the transmission shaft further includes a guide mechanism, the guide mechanism is disposed on the workbench, and the guide mechanism is located between the first abutting member and the second abutting member, and is used for guiding and positioning a welding fork disposed on the universal fixture for press-fitting of the welding-fit part of the transmission shaft.

In any of the above technical solutions, further, the guide mechanism includes a guide shaft and a guide sleeve;

the guide sleeve is inserted in the workbench, the guide shaft is inserted in the guide sleeve, and the workbench drives the guide sleeve to move along a second direction relative to the guide shaft; both ends of the guide shaft are exposed out of the guide sleeve and are respectively positioned on both sides of the guide sleeve.

In any one of the above technical solutions, further, one end of the guide shaft, which is close to the first abutting member and the second abutting member, has a fork-shaped structure, a side surface of the fork-shaped structure, which faces the first abutting member, is inclined, and a side surface of the fork-shaped structure, which faces the second abutting member, is also inclined.

Compared with the prior art, the beneficial effect of this application is:

the application provides a transmission shaft welds joint pressure equipment universal fixturing, its first top that has supports the component and the second top supports the component one end that is close to mutually and is the echelonment, the second top supports the component and also is the echelonment with the first top one end that is close to mutually, therefore be applicable to two earholes of not unidimensional welding fork, and then can carry out the centre gripping location to not unidimensional welding fork, it is visible, this transmission shaft welding closes the commonality of piece pressure equipment universal fixturing good, needn't change not unidimensional anchor clamps, the efficiency is improved, and the labor intensity is also lightened simultaneously.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a universal fixture for press-fitting a welding joint of a transmission shaft according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a universal fixture for press-fitting a welded joint of a transmission shaft according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a universal fixture for press-fitting a welded joint of a transmission shaft according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a universal fixture for press-fitting a welded joint of a transmission shaft according to an embodiment of the present application;

FIG. 5 is a cross-sectional view taken along section A-A of FIG. 4;

FIG. 6 is a schematic structural diagram of an application of the universal fixture for press-fitting of welding joints of transmission shafts according to the embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of an application of the universal fixture for press-fitting of welded joints of transmission shafts according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of another universal fixture for press-fitting a welded joint of a transmission shaft according to an embodiment of the present application.

Reference numerals:

1-a workbench, 2-a driving device, 21-a cylinder rod, 3-a first transmission mechanism, 31-a first transmission rod piece, 32-a second transmission rod piece, 4-a first abutting component, 5-a first bushing, 6-a second transmission mechanism, 61-a gear, 62-a first rack, 63-a second rack, 7-a second abutting component, 8-a second bushing, 9-a stroke adjusting component, 91-a first limiting component, 911-a through hole, 92-a second limiting component, 10-a guide mechanism, 101-a guide shaft, 1011-one side, 1012-the other side, 102-a guide sleeve and 11-a welding fork.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A universal fixture for press fitting a drive shaft weld joint according to some embodiments of the present application is described below with reference to fig. 1-8.

Referring to fig. 1 to 3 and 6 to 8, an embodiment of the present application provides a universal fixture for press-fitting a welded joint of a propeller shaft, including: the device comprises a workbench 1, a driving device 2 arranged on the workbench 1, a first transmission mechanism 3, a second transmission mechanism 6, a first abutting component 4 and a second abutting component 7;

the first transmission mechanism 3 is in transmission connection with the second transmission mechanism 6; the driving device 2 drives the first abutting member 4 to approach or separate from the second abutting member 7 along the first direction through the first transmission mechanism 3, and at the same time, the driving device 2 synchronously drives the second abutting member 7 to approach or separate from the first abutting member 4 along the first direction through the second transmission mechanism 6, that is, the driving device can synchronously drive the first abutting member 4 and the second abutting member 7 to move in the same direction or in opposite directions, where the first direction is a direction formed by a connecting line of the first abutting member 4 and the second abutting member 7; the facing portions of the first abutting member 4 and the second abutting member 7 are stepped.

According to the above-described structure, when the press-fitting universal fixture for the welding and joining part of the transmission shaft is applied, the welding fork 11 is placed between the first abutting member 4 and the second abutting member 7, the first abutting member 4 is driven by the driving device 2 through the first transmission mechanism 3 to move towards the position close to the welding fork 11 until the first abutting member 4 is stably inserted into the ear hole on one side of the welding fork 11, and at the same time, the driving device 2 synchronously drives the second abutting member 7 through the second transmission mechanism 6 to move towards the position close to the welding fork 11 until the second abutting member 7 is stably inserted into the ear hole on the other side of the welding fork 11, so that the welding fork 11 is clamped, and the welding fork 11 is conveniently assembled with other parts in the later period.

In the above process, since the end of the first abutting member 4 close to the second abutting member 7 is stepped, and the end of the second abutting member 7 close to the first abutting member 4 is also stepped, the welding fork is suitable for two ear holes of welding forks 11 with different sizes (wherein the ear holes may have different sizes)

Or

Of course, not only limited to these three kinds of sizes), and then can carry out the centre gripping location to not unidimensional welding fork 11, it is thus clear that this transmission shaft welding closes piece pressure equipment universal fixturing's commonality is good, need not change not unidimensional anchor clamps, has improved efficiency, has also alleviateed intensity of labour simultaneously.

After the welding fork 11 is pressed and assembled with other parts, the driving device 2 and the two transmission mechanisms can be used to move the first abutting member 4 and the second abutting member 7 away from each other to release the welding fork 11.

Furthermore, thanks to the arrangement of a common drive 2, the synchronism of the movement of the first abutment member 4 with the second abutment member 7, i.e. the synchronous movement towards each other to clamp the welding fork 11, or the synchronous movement in the opposite direction to release the welding fork 11, is ensured, and thanks to the presence of only one drive 2, the number of parts is reduced, while also saving energy.

In this embodiment, preferably, as shown in fig. 4 and 5, the first transmission mechanism 3 includes a first transmission link 31 and a second transmission link 32;

wherein, one end of the first transmission rod 31 is connected to the driving device 2, i.e. the cylinder rod 21 of the cylinder, and the opposite other end of the first transmission rod 31 is connected to the first propping member 4;

the second driving rod 32 is located between the driving device 2 and the first abutting member 4, the second driving rod 32 is slidably disposed on the working table 1, one end of the second driving rod 32 is connected to the first driving rod 31, and the opposite end of the second driving rod 32 is connected to the second driving mechanism 6 in a driving manner, specifically, as shown in fig. 8, a U-shaped mounting groove is formed at one end of the second driving rod 32 away from the first driving rod 31, one end of the first rack 62 of the second driving mechanism 6 is inserted into the mounting groove, and the first rack 62 is connected to the second driving rod 32 by a fastening member, which can be understood by referring to the detailed description below;

the driving device 2, i.e. the cylinder, can drive the first transmission rod 31 to drive the second transmission rod 32 to make a linear motion along the first direction, of course, the driving device 2 is not limited to the cylinder, but also can be other driving devices capable of providing a driving force for the linear motion.

According to the above-described structure, the first abutting member 4 is driven to move towards the direction close to or away from the second abutting member 7 by the extension and contraction of the driving device 2, that is, the cylinder rod 21 of the air cylinder, so as to clamp or release the welding fork 11 by the first abutting member 4 on one side, in the above process, the second transmission rod 32 plays a role of auxiliary support for the first transmission rod 31, and the second transmission rod 32 is connected with the workbench 1 in a sliding manner, and when the driving device 2 drives the first transmission rod 31 to move relative to the workbench 1, the second transmission rod 32 can also slide relative to the workbench 1, so as to realize synchronous movement with the first transmission rod 31.

In this embodiment, preferably, as shown in fig. 2 and 3, the universal fixture for press-fitting of the transmission shaft welded joint further includes a stroke adjusting assembly 9, the stroke adjusting assembly 9 is disposed between the driving device 2 and the first transmission mechanism 3, and the stroke adjusting assembly 9 is used for adjusting the working stroke of the driving device 2;

the stroke adjusting assembly 9 includes a first limiting member 91 and a second limiting member 92, the first limiting member 91 is connected to an end of the first transmission rod 31 far away from the first abutting member 4, and the second limiting member 92 is screwed to the output end of the driving device 2, of course, not limited to the screw connection;

the first position-limiting member 91 is provided with a through hole 911, the output end of the driving device 2 is inserted into the through hole 911, and the second position-limiting member 92 abuts against the end of the first position-limiting member 91 facing the driving device 2.

According to the above-described structure, the second limiting member 92 can be screwed to the predetermined position on the cylinder rod 21 according to actual requirements, and then one end of the cylinder rod 21 is inserted into the through hole 911 of the first limiting member 91, and at this time, the second limiting member 92 is located between the cylinder barrel of the cylinder and the first limiting member 91, when the cylinder rod 21 of the cylinder drives the second limiting member 92 to move toward the first limiting member 91, the second limiting member 92 eventually touches the end surface of the first limiting member 91, so as to stop the movement, and perform the limiting function, and further perform the adjustment of the working stroke of the telescopic rod, so as to adapt to the welding forks 11 with different sizes, and improve the centering precision, it is specifically understood that the fork hole of the welding fork 11 is a circular hole, the top of the first abutting member 4 has an R angle, that is, that the side surface of the top of the first abutting member 4 is an inclined surface, and when the top of the first abutting member 4 is stably inserted into the fork hole of the welding fork 11, the inclined plane is matched with the side wall surface of the circular fork hole in a tangent mode, the fork holes of the welding forks 11 with different sizes are different in size, the thickness of the second limiting component 92 is used for adjusting the moving distance of the telescopic rod, and further adjusting the depth (the depth is the same as the distance) of the first abutting component 4 extending into the fork hole, so that the inclined plane of the abutting part of the first abutting component 4 is always matched with the side wall surface of the fork hole with different sizes in a tangent mode, accurate centering of the first abutting component 4 on the welding forks 11 is achieved, in the process, after the welding forks 11 are subjected to the acting force of the first abutting component 4, the whole body automatically moves along the second direction, namely the direction perpendicular to the first direction, the fork hole on the other side of the welding fork 11 moves relative to the abutting part of the second abutting component 7, and automatic centering is achieved.

In this embodiment, preferably, as shown in fig. 1, 5 and 8, the second transmission mechanism 6 includes a gear 61 and a first rack 62 and a second rack 63 located on both sides of the gear 61;

wherein, the first rack 62 is connected to the second transmission rod 32, the gear 61 is meshed with the first rack 62, and the second rack 63 is meshed with the gear 61; the second rack 63 is connected to the second abutting member 7.

According to the above-described structure, the driving device 2, such as the air cylinder, drives the first transmission rod 31 to drive the second transmission rod 32 to move, the second transmission rod 32 drives the first rack 62 to move, the first rack 62 drives the gear 61 to rotate, the gear 61 drives the second rack 63 to drive the second abutting member 7 to move linearly along the first direction so as to approach or depart from the first abutting member 4, that is, the second abutting member 7 and the first abutting member 4 move synchronously.

In this embodiment, preferably, as shown in fig. 2, the universal jig for press-fitting a drive shaft weld joint further includes a first bush 5 and a second bush 8; wherein, the first bush 5 and the second bush 8 are arranged on the worktable 1 at intervals;

the first bushing 5 is provided with a first mounting hole, the first mounting hole penetrates through two ends of the first bushing 5, and the first abutting member 4 is inserted into the first mounting hole; the second bushing 8 is provided with a second mounting hole, the second mounting hole penetrates through two ends of the second bushing 8, and the second abutting member 7 is inserted into the second mounting hole.

It can be seen that the first bushing 5 serves to facilitate the mounting of the first abutting element 4 and to guide the movement of the first abutting element 4, and that, similarly, the second bushing 8 serves to facilitate the mounting of the second abutting element 7 and to guide the movement of the second abutting element 7.

In this embodiment, preferably, as shown in fig. 2 and 3, the universal fixture for press-fitting a transmission shaft weld assembly further includes a guide mechanism 10, the guide mechanism 10 is disposed on the work table 1, and the guide mechanism 10 is located between the first abutting member 4 and the second abutting member 7, and is used for positioning a welding fork 11 placed on the universal fixture for press-fitting a transmission shaft weld assembly.

Specifically, the guide mechanism 10 includes a guide shaft 101 and a guide sleeve 102;

the guide sleeve 102 is inserted into the workbench 1, the guide shaft 101 is rotatably inserted into the guide sleeve 102, and the workbench 1 can drive the guide sleeve 102 to move along a second direction relative to the guide shaft 101, so that the welding fork 11 with different heights can be adapted by adjusting the position of the guide shaft 101, wherein the height direction of the welding fork 11 is the same as the second direction; both ends of the guide shaft 101 are exposed to the guide sleeve 102 and are respectively located at both sides of the guide sleeve 102.

One end of the guide shaft 101, which is close to the first abutting member 4 and the second abutting member 7, has a fork-shaped structure for clamping a reinforcing rib at the intersection of two fork arms of the welding fork 11, i.e. the root, so as to prevent the welding fork 11 from rotating around the center line of the ear hole;

one side surface 1011 of the fork-shaped structure facing the first abutting component 4 is inclined, the other opposite side surface 1012 of the fork-shaped structure is also inclined, the two opposite side surfaces of the fork-shaped structure are inclined, the main angle plays a role of avoiding, and interference between the main angle and the inner wall surfaces of the two fork arms of the corresponding welding fork 11 is avoided.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The utility model provides a transmission shaft welded fitting pressure equipment universal fixturing which characterized in that includes: the device comprises a workbench, a driving device arranged on the workbench, and a first abutting member and a second abutting member which are connected with the driving device, wherein the driving device can synchronously drive the first abutting member and the second abutting member to move in the same direction or in opposite directions;

2. A universal fixture for press-fitting of transmission shaft weld joints according to claim 1, wherein the universal fixture for press-fitting of transmission shaft weld joints further comprises a first transmission mechanism and a second transmission mechanism in transmission connection;

3. A universal fixture for press fitting of drive shaft weld joints according to claim 2, wherein the first drive mechanism comprises a first drive link member and a second drive link member;

4. A universal fixture for press fitting of transmission shaft weld joints according to claim 3, further comprising a stroke adjusting assembly, wherein the stroke adjusting assembly is arranged between the driving device and the first transmission mechanism, and is used for adjusting the working stroke of the driving device;

5. A universal fixture for press fitting of drive shaft weld joints according to claim 3, wherein the drive means is an air cylinder.

6. A universal fixture for press fitting of drive shaft weld joints according to claim 3, wherein the second drive mechanism comprises a gear and first and second racks on either side of the gear;

7. The universal drive shaft weld joint press-fitting fixture according to any one of claims 1 to 6, further comprising a first bushing and a second bushing; the first bushing and the second bushing are oppositely arranged on the workbench at intervals;

8. The drive shaft weld joint press-fitting universal fixture according to any one of claims 1 to 6, further comprising a guide mechanism disposed on the table and located between the first abutting member and the second abutting member for guiding and positioning a welding fork disposed on the drive shaft weld joint press-fitting universal fixture.

9. A universal jig for press-fitting of transmission shaft weld joints according to claim 8, wherein the guide mechanism comprises a guide shaft and a guide sleeve;

10. A universal jig for press-fitting of transmission shaft welding joints according to claim 9, wherein the end of the guide shaft adjacent to the first abutting member and the second abutting member has a fork-shaped structure, and a side of the fork-shaped structure facing the first abutting member is inclined, and a side of the fork-shaped structure facing the second abutting member is also inclined.