Front axle master pin and lining integrated mounting equipment

Abstract

The utility model provides a front axle master pin and lining integrated installation device, relates to the field of front axle assembly, and adopts the technical scheme that the front axle master pin and lining integrated installation device comprises a support frame, the support frame is of an arch-shaped structure and is provided with a downward opening, and the two ends of the support frame are provided with a master pin press-fitting assembly and a positioning shaft respectively; the master pin press-fitting assembly comprises a driving part and a press-fitting shaft which are connected, the positioning shaft is horizontally arranged, the positioning shaft and the press-fitting shaft are coaxially arranged, and the driving part is electrically connected with a controller. According to the utility model, the assembly efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to front axle assembly field especially relates to a front axle kingpin and bush integrated installation equipment. BACKGROUND

[0002] In the automobile front axle assembly process, need to install kingpin and bush, complete assembly through manual knocking, but manual knocking, labor intensity is big, assembly rhythm is long, has been unable to satisfy the demand of batch production.

[0003] The related technology discloses a coaxial press fitting machine for front axle kingpin assembly, including the support of C, the upper frame of support is provided with the oil cylinder, the piston rod end of oil cylinder is connected with the press mold core, the press mold core is coaxial with the piston rod of oil cylinder, the lower frame of support is provided with the press mold coaxial with the press fitting oil cylinder, the press mold is slidably connected with the core rod, the core rod is outwardly abutted to multiple workpieces and the shaft hole of press mold by the tension of itself, when installing, the support is vertically hoisted, the front axle is located in the support, first, the kingpin mounting hole is sleeved on the press mold, then the core rod is sequentially inserted into the press mold, the kingpin mounting hole below the steering knuckle and the kingpin mounting hole of front axle, the kingpin is inserted into the upper end of another kingpin mounting hole of steering knuckle, finally, the press fitting oil cylinder is pressed down, and the kingpin is pushed forward in the kingpin mounting hole, when the kingpin abuts to the core rod, the core rod is pushed down by the kingpin, and the kingpin is successfully installed.

[0004] Adopt the above technical scheme, when installing, need to vertically insert the core shaft from below, have certain labor intensity, and in order to ensure that there is enough operating space, the press fitting machine and the front axle are hoisted, when press fitting, in order to facilitate observation, the press fitting machine and the front axle need to be lowered, reciprocating lifting, and the assembly efficiency is still low. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems in the prior art, the utility model provides a front axle kingpin and bush integrated installation equipment, which can improve the assembly efficiency.

[0006] The utility model discloses a technical scheme that solves the above technical problems: a front axle kingpin and bush integrated installation equipment, including support frame, the support frame is arched structure and opens downward, and the both ends of support frame are provided with kingpin press fitting assembly and positioning shaft respectively, the kingpin press fitting assembly includes the drive part and press fitting shaft that are connected, the positioning shaft is horizontally arranged, the positioning shaft and the press fitting shaft are coaxially arranged, and the drive part is electrically connected with the controller.

[0007] The utility model discloses a support frame horizontal placement can realize horizontal installation front axle, and through coaxial setting's locating shaft and press -fitting axle guarantee bushing mounting hole and king pin mounting hole coaxial, need not adopt the existing technology in the core rod can guarantee coaxial, assembly process need not hoist front axle, and assembly efficiency is high.

[0008] Further, the king pin press -fitting assembly further includes a housing, the housing is connected with the end of the support frame, the housing is provided with the driving piece, the driving piece adopts hydraulic oil cylinder, the piston rod of the hydraulic oil cylinder can extend to the outside of the housing, the end of the piston rod is connected with the press -fitting axle.

[0009] Further, the end face of the press -fitting axle is provided with a press -fitting hole, the press -fitting hole is coaxially arranged with the locating shaft, and the press -fitting hole is in clearance fit with the king pin.

[0010] The utility model discloses a press -fitting hole can guarantee the coaxial degree of king pin and press -fitting axle, guarantee smooth installation.

[0011] Further, the press -fitting axle is a stepped shaft, and the diameter of the front part of the press -fitting axle is smaller than the diameter of the rear part along the force direction.

[0012] The utility model discloses a press -fitting axle end part sets up stepped shaft structure to be able to increase the stress area of press -fitting axle, reduces pressure intensity, avoids stress deformation.

[0013] Further, the king pin press -fitting assembly further includes a distance measuring sensor, the distance measuring sensor can detect the moving distance of the press -fitting axle, and the distance measuring sensor is electrically connected with the controller.

[0014] The utility model discloses a distance measuring sensor can know the moving distance of press -fitting axle, and the piston rod extension distance is accurately controlled, and the press -fitting is guaranteed to be in place.

[0015] Further, the locating shaft is a stepped shaft, and the locating shaft includes a locating section and a mounting section arranged coaxially, the end face of the locating section can abut against the end face where the bushing mounting hole is located, and the mounting section can be in clearance fit with the bushing.

[0016] The utility model discloses a mounting section can play the accurate and stable limiting effect when the king pin is press -fitted, and the press -fitting precision is improved.

[0017] Further, an annular accommodating groove is coaxially arranged on the end face of the locating section and located at the connection with the mounting section.

[0018] Further, the support frame includes at least two connected arch-shaped plates.

[0019] The utility model discloses a plurality of arch type boards are connected to constitute the support frame, can reduce the support frame weight while guaranteeing the support frame intensity, realize light weight.

[0020] Further, the support frame includes three arch type plates connected by bolts and connecting plates.

[0021] Further, the support frame is provided with a lifting lug one at the upper end, and the shell is provided with a lifting lug two at the top.

[0022] The lifting lug one and the lifting lug two can ensure the horizontal movement of the device during hoisting and transferring, improve the hoisting stability, and prevent collision caused by inclination during transferring.

[0023] From the above technical solutions, the utility model has the following advantages:

[0024] The utility model discloses a front axle kingpin and bushing integrated installation equipment, and the coaxial positioning shaft and press fitting shaft are arranged to guarantee that the bushing mounting hole and the kingpin mounting hole are coaxial, the coaxiality can be guaranteed without using the mandrel in the prior art, the front axle does not need to be hoisted during assembly, the assembly efficiency is high, the support frame is horizontally placed to realize horizontal installation of the front axle, the stress during use is optimized, the support frame does not deform, and the service life is long, the coaxiality of the kingpin and the press fitting shaft can be guaranteed through the press fitting hole, smooth installation is guaranteed, the end of the press fitting shaft is arranged as a stepped shaft structure to increase the stress area of the press fitting shaft, reduce the pressure, and avoid stress deformation, the moving distance of the press fitting shaft can be known through the distance measuring sensor, the piston rod extension distance is accurately controlled, the press fitting is guaranteed to be in place, the installation section is arranged to accurately and stably limit the position during press fitting of the kingpin, and the press fitting precision is improved, a plurality of arch type plates are connected to constitute the support frame, the support frame strength can be guaranteed while reducing the support frame weight, and light weight is realized, the lifting lug one and the lifting lug two are arranged to ensure the horizontal movement of the device during hoisting and transferring, and improve the hoisting stability. ACCURACY

[0025] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the description, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is the structure schematic view of the specific embodiment of the utility model.

[0027] Figure 2 It is the use state diagram of the specific embodiment of the utility model.

[0028] Figure 3 is a use state diagram of the positioning shaft and the press-fitting shaft in the press-fitting of the bushing in the specific embodiment of the utility model.

[0029] Figure 4 is a use state diagram of the positioning shaft and the press-fitting shaft in the press-fitting of the bushing in the specific embodiment of the utility model.

[0030] In the figure, 1, positioning shaft; 101, positioning section; 102, mounting section; 103, accommodating groove; 2, support frame; 201, arch-shaped plate; 202, connecting bolt; 203, connecting plate; 3, lifting lug one; 4, shell; 5, lifting lug two; 6, hydraulic oil cylinder; 7, press-fitting shaft; 8, electric read head; 9, front axle; 10, bushing; 11, kingpin; 13, grating ruler. Specific embodiment

[0031] To make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the specific embodiment. Obviously, the following described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the patent.

[0032] As Figure 1 and Figure 2 shown, the specific embodiment provides a front axle kingpin and bushing integrated installation equipment, including support frame 2, kingpin press-fitting assembly and positioning shaft 1; support frame 2 is in arch-shaped structure and opens downward when used, kingpin press-fitting assembly and bushing press-fitting assembly are respectively arranged at both ends of support frame 2, kingpin press-fitting assembly includes driving part and press-fitting shaft 7 connected with each other, positioning shaft 1 is horizontally arranged, positioning shaft 1 and press-fitting shaft 7 are coaxially arranged, and driving part is electrically connected with controller.

[0033] The specific embodiment can guarantee that positioning shaft 1, bushing mounting hole, kingpin mounting hole and press-fitting shaft 7 are coaxial during assembly through coaxially arranged positioning shaft 1 and press-fitting shaft 7, without adopting the mandrel in the prior art to guarantee coaxiality, and further, the front axle 9 does not need to be hoisted and lowered during the assembly process, and the assembly efficiency is high; meanwhile, support frame 2 opens downward when used, compared with the vertical use of the support in the prior art, without bearing the gravity of front axle 9 (front axle 9 is placed on the support) and the acting force during the press-fitting of driving part, there is no deformation, and the service life is long; meanwhile, front axle 9 does not need to be hoisted, and the safety is higher during the assembly process; in addition, the positioning shaft 1 of the device has the positioning effect during the press-fitting of kingpin 11 and the guiding press-fitting effect during the press-fitting of bushing 10, the press-fitting of the bushing is realized through the reaction of front axle 9 to support frame 2, the setting of two driving parts is avoided, the cost is low, and the weight is low.

[0034] AsFigure 1 And Figure 2 As shown in the figure, in order to protect the driving member from being bumped, in the embodiment, the kingpin press-fitting assembly further comprises a shell 4 welded to the end of the support frame 2, the shell 4 is provided with a reinforcing rib plate, and the driving member is arranged in the shell 4 through a support and a bolt, the driving member is a hydraulic cylinder 6, the piston rod of the hydraulic cylinder 6 can extend to the outside of the shell 4, and the end of the piston rod is connected with a press-fitting shaft 7.

[0035] As shown in the figure, in order to ensure that the kingpin 11 is coaxial with the press-fitting shaft 7 during press-fitting, in the embodiment, a press-fitting hole is arranged on the end face of the press-fitting shaft 7, the press-fitting hole is coaxially arranged with the positioning shaft 1, and the press-fitting hole is in clearance fit with the kingpin 11; in this way, the kingpin 11 can be placed in the press-fitting shaft 7 in advance during use, so that the kingpin 11 is coaxial with the press-fitting shaft 7, the kingpin 11 is prevented from drooping under the action of gravity and affecting the assembly quality, and a part of the kingpin 11 outside can be used to mount other components of the front axle 9. Figure 4 As shown in the figure, in order to ensure that the kingpin 11 is coaxial with the press-fitting shaft 7 during press-fitting, in the embodiment, a press-fitting hole is arranged on the end face of the press-fitting shaft 7, the press-fitting hole is coaxially arranged with the positioning shaft 1, and the press-fitting hole is in clearance fit with the kingpin 11; in this way, the kingpin 11 can be placed in the press-fitting shaft 7 in advance during use, so that the kingpin 11 is coaxial with the press-fitting shaft 7, the kingpin 11 is prevented from drooping under the action of gravity and affecting the assembly quality, and a part of the kingpin 11 outside can be used to mount other components of the front axle 9.

[0036] Figure 1 As shown in the figure, in order to ensure that the kingpin 11 is coaxial with the press-fitting shaft 7 during press-fitting, in the embodiment, a press-fitting hole is arranged on the end face of the press-fitting shaft 7, the press-fitting hole is coaxially arranged with the positioning shaft 1, and the press-fitting hole is in clearance fit with the kingpin 11; in this way, the kingpin 11 can be placed in the press-fitting shaft 7 in advance during use, so that the kingpin 11 is coaxial with the press-fitting shaft 7, the kingpin 11 is prevented from drooping under the action of gravity and affecting the assembly quality, and a part of the kingpin 11 outside can be used to mount other components of the front axle 9. Figure 4 As shown in the figure, in order to ensure that the kingpin 11 is coaxial with the press-fitting shaft 7 during press-fitting, in the embodiment, a press-fitting hole is arranged on the end face of the press-fitting shaft 7, the press-fitting hole is coaxially arranged with the positioning shaft 1, and the press-fitting hole is in clearance fit with the kingpin 11; in this way, the kingpin 11 can be placed in the press-fitting shaft 7 in advance during use, so that the kingpin 11 is coaxial with the press-fitting shaft 7, the kingpin 11 is prevented from drooping under the action of gravity and affecting the assembly quality, and a part of the kingpin 11 outside can be used to mount other components of the front axle 9.

[0037] Figure 1 As shown in the figure, in order to ensure that the kingpin 11 and the bushing 10 are moved to the right position during assembly of the front axle 9, in order to ensure that the press-fitting is in place, in the embodiment, the kingpin press-fitting assembly further comprises a distance measuring sensor, the distance measuring sensor can detect the movement distance of the press-fitting shaft 7, the distance measuring sensor is electrically connected with a controller, and as an optimization, the distance measuring sensor adopts an optical grating, the end of the grating ruler 13 of the optical grating is connected with the press-fitting shaft 7, and the electric reader 8 of the optical grating is arranged in the shell 4, or a hydraulic cylinder with a built-in distance measuring sensor can be directly used. Figure 4 As shown in the figure, in order to ensure that the kingpin 11 and the bushing 10 are moved to the right position during assembly of the front axle 9, in order to ensure that the press-fitting is in place, in the embodiment, the kingpin press-fitting assembly further comprises a distance measuring sensor, the distance measuring sensor can detect the movement distance of the press-fitting shaft 7, the distance measuring sensor is electrically connected with a controller, and as an optimization, the distance measuring sensor adopts an optical grating, the end of the grating ruler 13 of the optical grating is connected with the press-fitting shaft 7, and the electric reader 8 of the optical grating is arranged in the shell 4, or a hydraulic cylinder with a built-in distance measuring sensor can be directly used.

[0038] Figure 1 As shown in the figure, in order to ensure that the kingpin 11 and the bushing 10 are moved to the right position during assembly of the front axle 9, in order to ensure that the press-fitting is in place, in the embodiment, the kingpin press-fitting assembly further comprises a distance measuring sensor, the distance measuring sensor can detect the movement distance of the press-fitting shaft 7, the distance measuring sensor is electrically connected with a controller, and as an optimization, the distance measuring sensor adopts an optical grating, the end of the grating ruler 13 of the optical grating is connected with the press-fitting shaft 7, and the electric reader 8 of the optical grating is arranged in the shell 4, or a hydraulic cylinder with a built-in distance measuring sensor can be directly used. Figure 3 ​​​As shown, in this specific embodiment, the positioning shaft 1 serves to position the main pin 11 during press-fitting and guide the press-fit bushing 10. To ensure it can perform both functions, the positioning shaft 1 is a stepped shaft, comprising a positioning section 101 and an installation section 102 coaxially arranged. The end face of the positioning section 101 can abut against the end face where the bushing mounting hole is located, and the installation section 102 can have a clearance fit with the bushing 10. During press-fitting of the main pin 11, the installation section 102 extends into the bushing mounting hole, and the end face of the positioning section 101 abuts against the bushing mounting hole. The end face where the bushing mounting hole is located abuts against the bushing, providing support and positioning for the front axle 9. When the bushing 10 is press-fitted, the bushing 10 installed on the mounting section 102 acts as a guide to extend into the bushing mounting hole, and the end face of the mounting section 102 acts as a hard limit. Since the front axle 9 used in this specific embodiment requires a section of the bushing 10 to be exposed, an annular receiving groove 103 is coaxially provided on the end face of the positioning section 101 at the connection with the mounting section 102. The receiving groove 103 is clearance-fitted with the bushing 10.

[0039] like Figure 2 As shown, to ensure the strength and lightweight of the support frame 2, the support frame 2 includes at least two connected arched plates 201. In this specific embodiment, the support frame 2 includes three arched plates 201. The middle parts of the three arched plates 201 are connected by connecting bolts 202 and separated by nuts. The positioning shaft 1 is welded to the inner side of the three arched plates 201. The outer side of one end of the three arched plates 201 that is mounted with the positioning shaft 1 is connected by a welded connecting plate 203. The other end of each of the three arched plates 201 is welded to the housing 4.

[0040] like Figure 2 As shown, in order to ensure the stable lifting of this device, the upper end of the support frame 2 is provided with lifting lug 3, and the top of the shell 4 is provided with lifting lug 5, which effectively prevents tilting and collision during transportation.

[0041] The working process of this device is as follows:

[0042] First, the device is hoisted to the front axle 9 and pulled down, so that the press-fit shaft 7 is coaxial with the kingpin mounting hole, the device is moved transversely, so that the mounting section 102 of the positioning shaft 1 extends into the bushing mounting hole; the kingpin 11 is placed into the press-fit hole of the press-fit shaft 7, the hydraulic oil cylinder 6 is controlled to extend, the kingpin 11 is pressed into the kingpin mounting hole until a set distance is reached; after the kingpin 11 is press-fitted, the piston rod is controlled to retract a distance to ensure that the exposed end of the kingpin 11 is located in the press-fit hole; the support frame 2 is pushed to one side, the positioning shaft 1 exits the cooperation with the bushing mounting hole, the bushing 10 is fitted on the mounting section 102, and is aligned with the bushing mounting hole on the front axle 9; the piston rod of the hydraulic oil cylinder 6 continuously extends, and then the press-fit shaft 7 is subjected to a reverse force from the front axle 9, the force from the front axle 9 acts on one end of the support frame 2 through the press-fit shaft 7, the hydraulic oil cylinder 6 and the shell 4, and then acts on the positioning shaft 1 through the other end of the support frame 2, so that the support frame 2 drives the positioning shaft 1 to move transversely, and then the bushing press-fitting is realized; thereafter, the piston rod is controlled to retract, and the press-fitting of the kingpin 11 and the bushing 10 on one side of the front axle 9 is completed.

[0043] From the above specific embodiment, the utility model has the following beneficial effects:

[0044] 1. By coaxially arranging the positioning shaft 1 and the press-fit shaft 7, the coaxial arrangement of the positioning shaft 1, the bushing mounting hole, the kingpin mounting hole and the press-fit shaft 7 can be ensured during assembly, without the need to use the mandrel in the prior art to ensure coaxial arrangement, and then the front axle 9 does not need to be lifted during assembly, the assembly efficiency is high, at the same time, the support frame 2 is used with the opening downward, compared with the support frame vertically used in the prior art, the support frame does not need to bear the gravity of the front axle 9 (the front axle 9 is placed on the support frame) and the force during press-fitting of the driving member, deformation does not exist, the service life is long, at the same time, the front axle 9 does not need to be hoisted, the safety during assembly is higher;

[0045] 2. By arranging the end of the press-fit shaft 7 into a stepped shaft structure, the stress area of the press-fit shaft 7 can be increased, the pressure can be reduced, and stress deformation can be avoided;

[0046] 3. By arranging the distance measuring sensor, the movement distance of the press-fit shaft 7 can be known, the extension distance of the piston rod can be accurately controlled, and the press-fitting can be ensured to be in place;

[0047] 4. By arranging the mounting section 102, accurate and stable limiting during press-fitting of the kingpin 11 can be achieved, and the press-fitting precision can be improved;

[0048] 6. By using a plurality of connected arch-shaped plates 201 to form the support frame 2, the strength of the support frame 2 can be ensured while the weight of the support frame 2 is reduced, and light weight is achieved;

[0049] 7. By arranging the lifting lug one 3 and the lifting lug two 5, the device can be horizontally moved during hoisting and transferring, and the hoisting stability can be improved.

[0050] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated installation device for front axle kingpin and bushing, comprising a support frame (2), the support frame (2) having an arched structure and an opening facing downwards, characterized in that, The support frame (2) is provided with a main pin pressing assembly and a positioning shaft (1) at both ends. The main pin pressing assembly includes a driving component and a pressing shaft (7) connected to each other. The positioning shaft (1) is horizontally arranged. The positioning shaft (1) and the pressing shaft (7) are coaxially arranged. The driving component is electrically connected to the controller. The positioning shaft (1) is a stepped shaft. The positioning shaft (1) has the functions of positioning during main pin pressing and guiding the pressing bushing. The bushing is pressed in by the reaction of the front axle on the support frame (2), avoiding the need to set two driving components. The positioning shaft (1) includes a positioning section (101) and an installation section (102) arranged coaxially. The end face of the positioning section (101) can abut against the end face where the bushing mounting hole is located. The installation section (102) can be clearance-fitted with the bushing. An annular receiving groove (103) is coaxially arranged on the end face of the positioning section (101) and at the connection with the installation section (102). The receiving groove (103) is clearance-fitted with the bushing.

2. The integrated installation equipment for the front axle kingpin and bushing as described in claim 1, characterized in that, The master pin press assembly also includes a housing (4), which is connected to the end of the support frame (2). The housing (4) is provided with the drive component, which is a hydraulic cylinder (6). The piston rod of the hydraulic cylinder (6) can extend to the outside of the housing (4), and the end of the piston rod is connected to the press shaft (7).

3. The integrated installation equipment for the front axle kingpin and bushing as described in claim 2, characterized in that, A press-fit hole is provided on the end face of the press-fit shaft (7). The press-fit hole is coaxially arranged with the positioning shaft (1). The press-fit hole is clearance-fitted with the kingpin.

4. The integrated installation equipment for the front axle kingpin and bushing as described in claim 3, characterized in that, The pressing shaft (7) is a stepped shaft, and along the direction of force application, the diameter of the front part of the pressing shaft (7) is smaller than the diameter of the rear part.

5. The integrated installation equipment for the front axle kingpin and bushing as described in claim 4, characterized in that, The main pin press assembly also includes a distance sensor, which can detect the movement distance of the press shaft (7), and the distance sensor is electrically connected to the controller.

6. The integrated installation equipment for the front axle kingpin and bushing as described in claim 2, characterized in that, The support frame (2) includes at least two connected arched plates (201).

7. The integrated installation equipment for the front axle kingpin and bushing as described in claim 6, characterized in that, The support frame (2) includes three arched plates (201), which are connected by connecting bolts (202) and connecting plates (203).

8. The integrated installation equipment for the front axle kingpin and bushing as described in claim 2, characterized in that, The upper end of the support frame (2) is provided with a first lifting lug (3), and the top of the shell (4) is provided with a second lifting lug (5).

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