CN214350745U - Tightening device for connecting bolt of automobile swing arm - Google Patents

Abstract

The utility model relates to a car swing arm connecting bolt's tightening means belongs to the automobile equipment technical field. The device comprises a swing arm positioning workstation, a longitudinal swing arm tightening machine and an oblique swing arm tightening machine; the positioning workstation is equipped with the lift base that can remove in vertical direction, be equipped with first bottom plate and second bottom plate on the lift base, be equipped with the roof on the first bottom plate, first bottom plate can move on the lift base and realize that the roof contacts with the tip of the vertical swing arm of frame, be equipped with the holder that is used for the slant swing arm on the centre gripping automobile frame on the second bottom plate, vertical swing arm screwing up machine and slant swing arm screwing up machine all include the anti-force arm, the tip of anti-force arm rotates and connects the rotating member, connect the fixed plate on the rotating member, be equipped with the frock of knocking that is used for screwing up connecting bolt on the swing arm on the fixed plate. The swing arm can be correspondingly pushed and pulled to a certain extent through the device, and the mounting process of the swing arm bolt is improved.

Description

Tightening device for connecting bolt of automobile swing arm

Technical Field

The utility model belongs to the technical field of the automobile assembling, specifically be a device is screwed up to automobile swing arm connecting bolt is related to.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

With the increase of the speed of automobiles, the requirement on the riding comfort of the automobiles is higher and higher. Traditional integral type swing arm improves more and more littlely to the travelling comfort of riding, and the disconnect-type swing arm is more and more obvious on improving the ground pan travelling comfort, and more high-end vehicles begin to adopt the disconnect-type swing arm now.

The separated swing arm has special requirements on the process in the process of stamping, certain pushing force and certain pulling force are required to be applied to the swing arm in the process of screwing the bolt to provide the connection quality of the hinged part of the bolt, and the bolt fastening quality directly influences the trafficability and comfort of the final automobile chassis, so that the driving safety is determined. The inventor finds that when connecting bolts on a longitudinal swing arm and an oblique swing arm on an automobile frame are screwed up at present, generally, an operator directly puts the swing arm to a mounting position and then mounts the connecting bolt, force cannot be applied to the corresponding swing arm, and therefore the assembling process of the connecting bolt is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to prior art exists, the utility model provides a car swing arm connecting bolt screws up device, the device can correspond certain thrust and pulling force to the swing arm at the in-process of screwing up, promotes swing arm bolt mounting process.

At least one embodiment of the utility model provides a device for screwing the connecting bolt of the swing arm of the automobile, which comprises a swing arm positioning workstation, a longitudinal swing arm screwing machine and an oblique swing arm screwing machine;

the swing arm positioning workstation is provided with a lifting base capable of moving in the vertical direction, the lifting base is provided with a first bottom plate and a second bottom plate which can move in the horizontal direction, the first bottom plate is provided with a top plate, the first bottom plate can move on the lifting base to realize that the top plate contacts with the end part of a longitudinal swing arm on a frame, the second bottom plate is provided with a clamping piece used for fixing the oblique swing arm on the frame, the second bottom plate can move on the lifting base to generate tension force for the oblique swing arm on the frame, and the longitudinal swing arm tightening machine and the oblique swing arm tightening machine both comprise a pair-knocking tool used for tightening a connecting bolt on the swing arm.

Further, the longitudinal swing arm tightening machine and the oblique swing arm tightening machine both comprise reaction arms, one end part in the length direction of each reaction arm is arranged on the track in a sliding mode through the framework, and the other end of each reaction arm is connected with the knocking tool through the rotating piece.

Furthermore, the knocking tool comprises a fixing plate, a driving power arm and a driven power arm, wherein the driving power arm and the driven power arm are arranged on the fixing plate at intervals, the fixing plate is connected with the rotating part, the driving power arm is provided with a screwing electric gun, and the driven power arm can move on the fixing plate to adjust the distance between the driving power arm and the driven power arm.

Furthermore, the main power arm is provided with a sleeve for sleeving the nut and the bolt head, and the tightening electric gun is connected with the sleeve through a transmission system.

Further, a balancer is connected to the reaction arm in the axial direction.

Further, the device also comprises a conveying line for conveying the frame, wherein the conveying line is arranged in the middle of the swing arm positioning work stations on the two sides of the automobile frame.

Further, a longitudinal swing arm tightening machine and a diagonal swing arm tightening machine are respectively arranged on two sides of the moving direction of the conveying line.

Furthermore, the first bottom plate and the second bottom plate are arranged on the lifting base through the slide block guide rail, and a driving piece used for controlling the two bottom plates to move is arranged on the lifting base.

Furthermore, a clamping cylinder is arranged on the second base plate and connected with the clamping piece to control the clamping movement of the clamping piece.

Furthermore, the swing arm positioning workstation is fixed on the ground, a lifting upright post and a lifting cylinder are arranged on the swing arm positioning workstation, the sliding block is fixed on a lifting base, and a piston rod of the lifting cylinder is connected with the lifting base.

The utility model has the advantages that:

(1) the utility model provides a connecting bolt tightening device exerts certain thrust and pulling force in vertical swing arm of frame and the slant swing arm assembling process respectively on first bottom plate on the lifting base and the second bottom plate, has improved the mounting process who promotes the swing arm bolt.

(2) The utility model provides a swing arm tightening machine can move on the track among the connecting bolt tightening device, when operating personnel is carrying out the connecting bolt tightening during operation in the swing arm, can screw up the swing arm and move the workspace, utilizes the tightening motor on upper portion to screw up simultaneously, moves the non-working area when finishing, improves the assembly efficiency of automobile frame swing arm like this.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic view of an overall structure of a device for tightening a connecting bolt of an automobile swing arm according to an embodiment of the present invention;

fig. 2 is a front view of a device for tightening a connecting bolt of an automobile swing arm according to an embodiment of the present invention;

fig. 3 is a left side view of the device for tightening the connecting bolt of the swing arm of the automobile according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a right swing arm positioning workstation in the device for tightening the swing arm connecting bolt of the vehicle according to the embodiment of the present invention at a first angle;

fig. 5 is a schematic structural view of a second angle of the right swing arm positioning workstation in the device for tightening the swing arm connecting bolt of the automobile provided by the embodiment of the present invention;

fig. 6 is a schematic structural view of a right swing arm positioning workstation in the device for tightening the swing arm connecting bolt of the vehicle according to the embodiment of the present invention;

fig. 7 is a schematic view of a vehicle frame (including a swing arm) in the device for tightening the swing arm connecting bolt of the vehicle according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a diagonal swing arm tightening machine in the device for tightening the connecting bolt of the swing arm of the automobile provided by the embodiment of the present invention;

fig. 9 is a structural schematic diagram of a longitudinal swing arm tightening machine in the automobile swing arm connecting bolt tightening device provided by the embodiment of the utility model.

In the figure: 1. the device comprises 1-1 parts of an oblique swing arm tightening machine, 1-1 parts of a counter force arm framework, 1-2 parts of a vertical spline counter force arm, 1-3 parts of a tightening electric gun, 1-4 parts of a balancer, 1-5 parts of a rotating assembly, 1-6 parts of a knocking tool, 2 parts of a longitudinal swing arm tightening machine, 2-1 parts of a counter force arm framework, 2-2 parts of a vertical spline counter force arm, 2-3 parts of a tightening electric gun, 2-4 parts of a balancer, 2-5 parts of a rotating assembly, 2-6 parts of a knocking tool, 3 parts of a conveying line, 4 parts of a swing arm positioning work station, 4-1 parts of a clamping cylinder, 4-2 parts of a pushing cylinder, 4-3 parts of a lifting cylinder, 4-4 parts of a pulling cylinder, 4-5 parts of a lifting upright column, 4-6 parts of a bottom plate, 4-7 parts of a lifting base, 4-8 parts of a lifting base, and a lifting device, The automobile frame comprises a first bottom plate, 4-9 parts of a second bottom plate, 4-10 parts of a lower clamping block, 4-11 parts of an upper clamping block, 4-12 parts of a moving block, 5 parts of an automobile frame, 5-1 parts of a left inclined swing arm, 5-2 parts of a left longitudinal swing arm, 5-3 parts of a right inclined swing arm, 5-4 parts of a right longitudinal swing arm, 5-5 parts of a frame body.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

As shown in FIG. 1, the embodiment of the utility model provides a car swing arm connecting bolt tightening device, the device mainly include conveyor line body 3, vertical swing arm screw up machine 2, slant swing arm screw up machine 1, swing arm positioning workstation 4. The conveying line body 3 is used for conveying the automobile frame, when the conveying line body conveys the automobile frame 5 to a designated position, the automobile frame 5 is fixed through the swing arm positioning work station 4, and then the connecting bolts of the longitudinal swing arm and the oblique swing arm on the automobile frame 5 are screwed through the longitudinal swing arm screwing machine 2 and the oblique swing arm screwing machine 1.

As shown in FIG. 5, a typical vehicle frame includes a frame body 5-5, and a left inclined swing arm 5-1, a left longitudinal swing arm 5-2, a right inclined swing arm 5-3 and a right longitudinal swing arm 5-4 are connected to both sides of the frame body 5-5 by connection bolts.

Referring to fig. 2 and 3, in the embodiment, two swing arm positioning workstations 4 are respectively disposed on two sides of the conveyor line body 3, the swing arm positioning workstations 4 are respectively fixed on the longitudinal swing arm and the oblique swing arm on two sides of the vehicle frame 5, and two longitudinal swing arm tightening machines and two oblique swing arm tightening machines are respectively disposed on two sides of the conveyor line body 3, tops of the two swing arm tightening machines are slidably fixed on the rail and can move on the rail, when the positioning workstations fix the swing arms on two sides of the vehicle frame 5, an operator moves the longitudinal swing arm tightening machine and the oblique swing arm tightening machine to a working area to work, and after tightening, the swing arm tightening machines are moved to a non-working area.

As shown in fig. 4, the positioning workstation 4 provided by the embodiment of the present invention mainly includes a bottom plate 4-6, a lifting base 4-7, a lifting column 4-5 and a lifting cylinder 4-3, and guard rails are further disposed on two sides of the positioning workstation.

The lifting device comprises a base plate 4-6, a lifting upright post 4-5 and a lifting cylinder 4-3, wherein the base plate is fixed on the ground through an expansion bolt, the lifting upright post 4-3 is fixed on a lifting base 4-7, the lifting base is fixed on the lifting upright post through a slider guide rail and can move up and down on the lifting upright post, the lifting cylinder is fixed on one side of the lifting upright post on the base plate, a lifting rod of the lifting cylinder is connected with the bottom of the lifting base, and the lifting base is driven to slide on the lifting upright post through the telescopic motion of the lifting cylinder.

In order to realize the tightening of the connecting bolt of the swing arm on the vehicle frame, as shown in fig. 5-6, the lifting base is provided with a first bottom plate 4-8 and a second bottom plate 4-9, wherein the first bottom plate can move in the horizontal direction, it can be understood that the first bottom plate is mainly used for applying certain thrust to the longitudinal swing arm, so the first bottom plate mainly moves along the end part close to the longitudinal swing arm, and the first bottom plate is provided with a vertical top plate which is contacted with the end part of the longitudinal swing arm so as to provide certain thrust to the longitudinal swing arm.

The first bottom plate 4-8 is fixed on the lifting base through a sliding block and a guide rail in a sliding mode, meanwhile, a thrust cylinder 4-2 is installed on one side of the first bottom plate, a telescopic rod of the thrust cylinder is connected with an ear plate extending out of the first bottom plate, and the first bottom plate is moved through telescopic motion of the telescopic rod.

The second bottom plate 4-9 is fixed on the lifting base through a guide rail and a sliding block, a pull cylinder 4-4 is arranged on one side of the second bottom plate of the lifting base, the pull cylinder 4-4 is parallel to the second bottom plate, and the end part of a telescopic rod of the pull cylinder is connected with a lug plate protruding out of the second bottom plate.

It should be noted that, in the embodiment, the second base plate is arranged obliquely, and referring to the arrangement manner of the oblique swing arm in the figure, when the clamping member on the second base plate clamps the oblique swing arm, a certain pulling force needs to be applied, and the second base plate is parallel to the end of the oblique swing arm.

Furthermore, a pair of clamping blocks for clamping the inclined swing arm is arranged on the second base plate, wherein the lower clamping block 4-10 is fixed on the second base plate, the upper clamping block 4-11 is connected with a moving block 4-12, the moving block 4-12 is connected with a telescopic rod of a clamping cylinder 4-1 arranged on the second base plate, the movement of the upper clamping block and the lower clamping block is controlled through the telescopic movement of the telescopic cylinder, and when the inclined swing arm is clamped by the upper clamping block and the lower clamping block, a certain pulling force can be generated on the inclined swing arm by controlling the telescopic movement of the pulling cylinder 4-4.

Therefore, the automobile swing arm connecting bolt tightening device provided by the embodiment assembles the swing arm of the automobile frame through the swing arm positioning work station arranged on two sides of the conveyor line body, and applies certain thrust to the longitudinal swing arm of the automobile frame on the first base plate on the swing arm positioning work station, and the clamping block of the second base plate clamps the inclined swing arm and applies certain pulling force, so that certain thrust and pulling force are applied to the swing arm in the assembling process, and the swing arm bolt installation process is improved.

Further, as shown in fig. 7, the oblique swing arm screwing machine in the embodiment mainly comprises a top framework 1-1, a vertical spline reaction arm 1-2, a rotary joint 1-5 and a butt-knocking tool 1-6. The top of the vertical spline reaction arm 1-2 is connected with a top framework 1-1 through a bolt, the bottom of the vertical spline reaction arm is connected with a rotary joint 1-5, the rotary joint 1-5 is connected with a pair-knocking tool 1-6, the pair-knocking tool is used for screwing a connecting bolt on a swing arm, the pair-knocking tool is provided with a screwing electric gun 1-3, the screwing of the connecting bolt is realized through the screwing electric gun 1-3, and manual participation is avoided.

Wherein the top frame 1-1 is used for sliding and fixing on the rail, and the rail is not marked in the figure, it can be understood that the rail is arranged at the top of the tightening device, the frame of the oblique swing arm tightening machine 1 is arranged on the rail in a sliding way, when the tightening machine is used, an operator can hold the bottom of the tightening machine by hand, so that the tightening machine can slide to a working area along the rail, and when the tightening machine is not used, the tightening machine can be moved to a non-working area, and therefore, the working efficiency of assembly is improved.

Further, the balancer 1-4 is connected to the vertical spline reaction arm 1-2 to assist an operator in moving the tightening machine, so that the labor intensity of the operator can be reduced during working.

It should be noted that, in this embodiment, the butt-knocking tool 1-6 substantially includes a fixed plate, the fixed plate is fixedly connected to the rotary joint 1-5, two ends of the bottom of the fixed plate are respectively connected to a driving power arm and a driven power arm, wherein the driving power arm is connected to a tightening motor, the driven power arm can move on the fixed plate, and the length of the driving power arm and the length of the driven power arm are controlled according to the length of the connecting bolt, as shown in fig. 7, a sleeve of the fixing bolt or the nut is provided on the driving power arm of the oblique longitudinal arm tightening machine, it can be understood that the tightening motor is connected to the sleeve on the driven power arm through a transmission mechanism, and can drive the driven arm to rotate, and a similar fixed wrench is provided on the movable arm. Thus, the connecting bolt on the swing arm can be screwed down by rotating the sleeve.

Further, as shown in fig. 8, the structure of the longitudinal swing arm tightening machine also comprises a top framework 2-1, a vertical spline reaction arm 2-2, a rotary joint 2-5 and a pair-knocking tool 2-6, wherein the vertical spline reaction arm 2-2 is connected with a balancer 2-4, the pair-knocking tool 2-6 is connected with a tightening electric gun 2-3, and the structures are the same as those of the oblique swing arm tightening machine.

Unlike the trailing arm tightening machine, the leading power arm and the trailing power arm of the longitudinal swing arm tightening machine are each provided with a sleeve for fixing a bolt or a nut, and when the connecting bolt is tightened on the longitudinal swing arm, the head of the connecting bolt and the nut on the leading power arm and the head of the connecting bolt on the trailing power arm can be sleeved on the sleeve, wherein the sleeve on the leading power arm sleeves the bolt, and the sleeve is controlled to rotate to tighten the connecting bolt.

Therefore, the longitudinal swing arm tightening machine and the oblique swing arm tightening machine provided by the device can replace an operator to tighten the connecting bolt.

The following describes in detail a process method based on the above-mentioned automobile swing arm connecting bolt tightening device, which includes the following processes:

the automobile frame 5 is conveyed to the coverage range of the tightening device through the conveying line body 3, the conveying line body 3 drives the automobile frame 5 to a tightening position, as shown in the state of figure 1, the swing arm positioning work station 4 works, firstly, the lifting cylinder 4-3 works to drive the positioning tool to a working height, the swing arms are manually placed at respective tightening positions, the clamping cylinder 4-1 on the second base plate works to clamp the inclined swing arms, meanwhile, the thrust cylinder 4-2 and the tension cylinder 4-4 simultaneously start to work to apply thrust to the longitudinal swing arms and apply tension to the inclined swing arms, and after the actions are completed. Manually moving the inclined swing arm tightening machine 1 to a tightening position, firstly tightening the electric guns 1-3 to align with the bolts to be tightened, then aligning the nuts with the knocking tools 1-6, starting the tightening electric guns 1-3 to finish the tightening of the bolts, moving the inclined swing arm tightening machine 1 to the side of a station after the tightening of the bolts is finished, then moving the longitudinal swing arm tightening machine 2 to the tightening position, firstly tightening the electric guns 2-3 to align with the bolts to be tightened, then aligning the nuts with the knocking tools 2-6, starting the tightening electric guns 2-3 to finish the tightening of the bolts, and moving the inclined swing arm tightening machine 2 to the side of the station after the tightening of the bolts is finished.

After all the bolts of the automobile frame 5 are screwed up to be qualified, the clamping cylinder 4-1 is loosened, the thrust cylinder 4-2 and the tension cylinder 4-4 respectively release force, the lifting cylinder 4-3 drives the related positioning tool to a safe height, the conveying line body 3 works to drive the automobile frame 5 to the next station, and meanwhile, the next station to be screwed up is conveyed to the screwing station.

The assembling process method of the connecting bolt can reduce labor intensity, improve production efficiency and ensure the assembling precision and quality of the automobile swing arm bolt.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (10)

1. A device for screwing a connecting bolt of an automobile swing arm is characterized by comprising a swing arm positioning workstation, a longitudinal swing arm screwing machine and an oblique swing arm screwing machine;

the swing arm positioning workstation is provided with a lifting base capable of moving in the vertical direction, the lifting base is provided with a first bottom plate and a second bottom plate which can move in the horizontal direction, the first bottom plate is provided with a top plate, the first bottom plate can move on the lifting base to realize that the top plate contacts with the end part of a longitudinal swing arm on a frame, the second bottom plate is provided with a clamping piece used for fixing the oblique swing arm on the frame, the second bottom plate can move on the lifting base to apply tension to the oblique swing arm on the frame, and the longitudinal swing arm tightening machine and the oblique swing arm tightening machine both comprise a pair-knocking tool used for tightening a connecting bolt on the swing arm.

2. The tightening device of the connecting bolt of the swing arm of the vehicle as claimed in claim 1, wherein the longitudinal swing arm tightening machine and the oblique swing arm tightening machine each comprise a reaction arm, one end of the reaction arm in the length direction is slidably disposed on the rail through the frame, and the other end is connected to the knocking tool through the rotating member.

3. The tightening device for the connecting bolt of the swing arm of the automobile as claimed in claim 2, wherein the knocking tool comprises a fixing plate and an active arm and a passive arm which are arranged on the fixing plate and spaced apart from each other, the fixing plate is connected with the rotating member, the active arm is provided with a tightening electric gun, and the passive arm can move on the fixing plate to adjust the distance between the passive arm and the active arm.

4. The tightening device of an arm swing joint bolt for an automobile according to claim 3, wherein the main power arm is provided with a sleeve for receiving the nut and the bolt head, and the tightening electric gun is connected to the sleeve through a transmission system.

5. The tightening apparatus of a connecting bolt for swing arms of automobiles according to claim 2, wherein the balancer is attached in the axial direction of the reaction arm.

6. The tightening device for the connecting bolt of the swing arm of the automobile as claimed in claim 1, further comprising a conveying line for conveying the frame, the conveying line being provided at a middle position of the swing arm positioning work stations at both sides of the frame of the automobile.

7. The tightening apparatus of a swing arm connecting bolt for an automobile according to claim 6, wherein the longitudinal swing arm tightening machine and the diagonal swing arm tightening machine are respectively provided on both sides in the moving direction of the conveyor line.

8. The tightening device of an arm swing connecting bolt of an automobile according to claim 1, wherein the first base plate and the second base plate are disposed on the elevating base through a slider guide, and the elevating base is provided with a driving member for controlling the movement of the two base plates.

9. The tightening device for the connecting bolt of the swing arm of the automobile as claimed in claim 8, wherein the second base plate is provided with a clamping cylinder, and the clamping cylinder is connected with the clamping member to control the clamping movement of the clamping member.

10. The tightening device for the connecting bolt of the swing arm of the automobile as claimed in claim 1, wherein the swing arm positioning station is fixed on the ground, the swing arm positioning station is provided with a lifting column and a lifting cylinder, the slide block is arranged on the lifting base, and a piston rod of the lifting cylinder is connected with the lifting base.

Images