Hub bolt press fitting tool

Abstract

The utility model provides a hub bolt press fitting tool which comprises a tray assembly, a connecting assembly, a pressure head assembly, a rotating base and a positioning plug pin. When the hub bolt press-fitting tool is used, a straight-grain hub bolt penetrates through a mounting hole of a C-shaped brake disc and is pressed into a mounting hole of a hub, and under the condition that the upward vertical space is small, quick and accurate press-fitting can be achieved by connecting the hub bolt press-fitting tool, a connecting assembly and an oil press and pressing the straight-grain hub bolt downwards through a rolling bearing steel ball. And the tray assembly of the device can rotate in the rotary base, so that the qualification rate and efficiency of press fitting can be greatly improved. The hub bolt press fitting tool has the advantages of being reasonable in design, simple in structure, high in mechanism stability, rapid, reliable and the like.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle assembly technology, specifically relating to a wheel hub bolt pressing tool. Background Technology

[0002] Wheel bolts are high-strength bolts used to connect wheels to axles, ensuring a secure fit and preventing loosening or detachment during driving. During cornering, acceleration, and braking, wheel bolts also absorb external impacts, ensuring vehicle stability and safety. One type of wheel bolt installation involves a C-shaped brake disc mounting hole and a runned bolt. Below the T-nut of the wheel bolt are the runned end and the threaded end. When connecting the axle and wheel, the runned end of the bolt must be passed through the C-shaped brake disc mounting hole and pressed forcefully into the wheel hub mounting hole. However, due to the limited vertical space above the wheel bolt, it cannot be press-fitted by hand hammering. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] This utility model proposes a wheel hub bolt pressing tool to solve the technical problem of how to quickly and accurately press straight-lined wheel hub bolts.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problems, this utility model proposes a wheel hub bolt pressing tool, which includes a tray assembly, a connecting assembly, a pressing head assembly, a rotating base, and a positioning pin; wherein...

[0007] The pallet assembly includes a panel, supports, and a base plate. The panel has a disc structure with multiple circumferentially distributed panel positioning through holes machined on its outer periphery. Each panel positioning through hole has a stepped groove machined on its bottom surface. The base plate has a disc structure with multiple circumferentially distributed base plate positioning through holes machined on its outer periphery. Each base plate positioning through hole has a stepped groove machined on its top surface. The two ends of the multiple supports are respectively inserted into the bottom of the stepped grooves of the panel and the base plate, and are welded and fixed to the panel and the base plate respectively.

[0008] The connecting assembly comprises an oil press flange, an oil press flange nut and an internal hexagonal flat-end set screw; the oil press flange is provided with an axial circular through hole, and a stepped circular groove is formed on the bottom surface of the oil press flange; the oil press shaft is inserted into the axial circular through hole, and the oil press flange nut is installed in the stepped circular groove to fix and connect the oil press shaft and the oil press flange; the bottom surface of the oil press flange is provided with a T-shaped groove for installing a T-shaped groove bolt; and the sidewall of the oil press flange is provided with a threaded stepped hole perpendicular to the axial circular through hole, and the internal hexagonal flat-end set screw is screwed into the threaded stepped hole to fasten the oil press shaft.

[0009] The pressure head assembly comprises a pressure head, a T-shaped groove bolt, a hexagonal flange nut and a rolling bearing steel ball; the pressure head has a T-L structure, the T-shaped horizontal end is a cuboid structure, and four circular through holes are symmetrically formed; the L-shaped structure is located at the lower part of the T-shaped horizontal end, and a circular through hole is formed at the tail end of the L-shaped structure, and the axis of the circular through hole is parallel to the axes of the four circular through holes of the T-shaped horizontal end; a cylindrical groove is formed on the lowermost end surface of the T-L structure of the pressure head, and the cylindrical groove is concentric with the circular through hole at the tail end of the L-shaped structure; the rolling bearing steel ball is bonded in the cylindrical groove; the bottom of the rolling bearing steel ball protrudes from the lowermost end surface of the T-L structure of the pressure head; the rolling bearing steel ball is replaced through the circular through hole at the tail end of the L-shaped structure; the T-shaped groove bolt passes through the circular through hole of the T-shaped horizontal end and is fastened and connected through the hexagonal flange nut.

[0010] The rotating base has a disc structure and is placed on the oil press platform; a recess is formed on the top of the rotating base, and a plurality of circular through holes are formed in the recess; the tray assembly is placed in the recess of the rotating base through the bottom plate, the positioning circular through hole of the bottom plate is radially concentric with the circular through hole of the rotating base; the positioning pin is inserted into the positioning circular through hole of the bottom plate and the circular through hole of the rotating base to fixedly connect the tray assembly and the rotating base.

[0011] Further, a circular through hole is formed in the center of the panel.

[0012] Further, a circular through hole is formed in the center of the bottom plate.

[0013] Further, the specification of the stepped circular groove on the bottom plate is the same as that of the stepped circular groove on the panel.

[0014] Further, the support has a steel pipe structure.

[0015] Further, two symmetrical T-shaped grooves are formed on the bottom surface of the oil press flange with the axis of the axial circular through hole as a reference.

[0016] Further, the rolling bearing steel ball is bonded in the cylindrical groove through glass cement.

[0017] Further, the recess of the rotating base is filled with lubricating grease.

[0018] (Three) beneficial effects

[0019] The utility model provides a kind of hub bolt press fitting tool, including tray assembly, connecting assembly, pressure head assembly, rotating base and positioning bolt. When using, straight grain hub bolt passes through the mounting hole of C-type brake disc, is pressed into the mounting hole of hub, in the case of vertically small upward, by the hub bolt press fitting tool of the utility model, connecting assembly is connected with oil press, and straight grain hub bolt is pressed downward by rolling bearing steel ball, accurate press fitting can be realized quickly, and the tray assembly of the device can rotate in rotating base, and the qualified rate and efficiency of press fitting can be greatly improved.The hub bolt press fitting tool of the utility model is reasonable in design, simple in structure, high in mechanism stability, with fast, reliable and other characteristics. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure front view of the hub bolt press fitting tool of the utility model; Figure 2a It is the structure front view of tray assembly in the utility model, Figure 2b It is plan view; Figure 3a It is the structure front view of connecting assembly in the utility model, Figure 3b It is plan view;

[0021] Figure 4a It is the structure front view of pressure head assembly in the utility model, Figure 4b It is plan view, Figure 4c It is side view;

[0022] Figure 5a It is the structure front view of rotating base in the utility model, Figure 5b It is plan view.

[0023] Wherein: 1 is tray assembly, 2 is connecting assembly, 3 is pressure head assembly, 4 is rotating base, 5 is positioning bolt, 6 is brake disc, 7 is hub, 8 is straight grain hub bolt, 9 is oil press shaft, 10 is panel, 11 is support, 12 is bottom plate, 13 is oil press flange, 14 is oil press flange nut, 15 is inner hexagonal flat end lock screw, 16 is pressure head, 17 is T-shaped groove bolt, 18 is hexagonal flange nut, 19 is rolling bearing steel ball. DETAILED DESCRIPTION

[0024] To make the purpose, content and advantages of the utility model more clear, the specific implementation of the utility model is described in further detail below in conjunction with the drawings and examples.

[0025] The utility model proposes a kind of hub bolt press fitting tool, its overall structure as shown in Figure 1 Including tray assembly 1, connecting assembly 2, pressure head assembly 3, rotating base 4 and positioning bolt 5.

[0026] AsFigure 2a and 2b As shown in the drawings, the tray assembly 1 includes a panel 10, a support 11 and a bottom plate 12. Among them, the panel 10 is a disc structure, a circular through hole is processed in the center, and a plurality of circumferentially uniformly distributed panel positioning circular through holes are processed on the outer periphery of the circular through hole. Each panel positioning circular through hole is processed with a stepped circular groove on the bottom surface of the panel 10. The bottom plate 12 is a disc structure, a circular through hole is processed in the center, and a plurality of circumferentially uniformly distributed bottom plate positioning circular through holes are processed on the outer periphery of the circular through hole. Each bottom plate positioning circular through hole is processed with a stepped circular groove on the top surface of the bottom plate 12, and the stepped circular groove has the same specification as the stepped circular groove on the panel 10. The support 11 is a steel pipe structure, and the two ends of the plurality of supports 11 are respectively inserted into the stepped circular grooves at the bottom of the panel 10 and the bottom plate 12, and are respectively welded and fixed with the panel 10 and the bottom plate 12.

[0027] As shown in the drawings, Figure 3a and 3b The connecting assembly 2 includes an oil press flange 13, an oil press flange nut 14 and an internal hexagonal flat end set screw 15. Among them, an axial circular through hole is processed on the oil press flange 13, and a stepped circular groove is processed on the bottom surface of the oil press flange 13. After the oil press shaft 9 is inserted into the axial circular through hole, the oil press flange nut 14 is installed in the stepped circular groove to fixedly connect the oil press shaft 9 and the oil press flange 13. With the axial circular through hole as the reference, two symmetrical T-shaped grooves are processed on the bottom surface of the oil press flange 13 for the installation of T-shaped groove bolts 17. A threaded stepped hole perpendicular to the axial circular through hole is processed on the side wall of the oil press flange 13, and the internal hexagonal flat end set screw 15 is screwed into the threaded stepped hole to tighten the oil press shaft 9.

[0028] As shown in the drawings, Figures 4a to 4c The pressure head assembly 3 includes a pressure head 16, a T-shaped groove bolt 17, a hexagonal flange nut 18 and a rolling bearing steel ball 19. Among them, the pressure head 16 is a T-L type structure, the T type horizontal end is a cuboid structure, and four circular through holes are symmetrically processed; the L type structure is located at the lower part of the T type horizontal end, and a circular through hole is processed at the tail end of the L type structure, and the axis of the circular through hole is parallel to the axes of the four circular through holes of the T type horizontal end; a cylindrical groove is processed on the lowermost end surface of the T-L type structure of the pressure head 16, and the cylindrical groove is concentric with the circular through hole at the tail end of the L type structure. The rolling bearing steel ball 19 is bonded in the cylindrical groove by glass glue to prevent falling off; the bottom of the rolling bearing steel ball 19 protrudes from the lowermost end surface of the T-L type structure of the pressure head 16; the rolling bearing steel ball 19 is replaced through the circular through hole at the tail end of the L type structure. The T-shaped groove bolt 17 passes through the circular through hole of the T-shaped horizontal end and is tightly connected through the hexagonal flange nut 18.

[0029] As shown in the drawings, Figure 5a and 5bAs shown, the rotating base 4 is a disc structure, placed on the platform of the oil press. The top of the rotating base 4 is processed with a groove, and a plurality of circular through holes are processed in the groove, and the bottom of the groove is coated with lubricating grease.

[0030] The tray assembly 1 is placed in the groove full of lubricating grease of the rotating base 4 through the bottom plate 12, the position is adjusted, and it is ensured that the positioning circular through hole of the bottom plate 12 is radially concentric with the circular through hole of the rotating base 4. The positioning pin 5 is inserted into the positioning circular through hole of the bottom plate 12 and the circular through hole of the rotating base 4, and the tray assembly 1 is fixedly connected with the rotating base 4.

[0031] The mounting hole of the brake disc 6 and the hub 7 is radially concentric with the circular through hole of the face plate 10, and the threaded end of the straight thread hub bolt 8 is inserted into the mounting hole of the brake disc 6. The T-shaped end of the T-shaped slot bolt 17 is inserted into the T-shaped slot of the oil press flange 13. The position of the rotating base 4 and the oil press shaft 9 is adjusted, so that the rolling bearing steel ball 19 is inserted into the C-shaped structure of the brake disc 6 and is radially concentric with the straight thread hub bolt 8. The oil press shaft 9 runs downward, and the rolling bearing steel ball 19 presses the straight thread hub bolt 8, and the pressing is completed. After the pressing is completed, the positioning pin 5 is pulled out, the tray assembly 1 is rotated, and the pressing of the next straight thread hub bolt 8 is carried out.

[0032] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should be considered as the protection scope of the present application.

Claims

1. A wheel bolt press-in tool characterized by, The hub bolt press-fitting tool comprises a tray assembly, a connecting assembly, a press head assembly, a rotating base and a positioning pin; wherein, The tray assembly comprises a panel, a support and a bottom plate; wherein the panel is a disc structure, and a plurality of panel positioning round through holes are uniformly distributed on the outer periphery; each panel positioning round through hole is provided with a stepped circular groove on the bottom surface of the panel; the bottom plate is a disc structure, and a plurality of bottom plate positioning round through holes are uniformly distributed on the outer periphery; each bottom plate positioning round through hole is provided with a stepped circular groove on the top surface of the bottom plate; the two ends of the plurality of supports are respectively inserted into the stepped circular grooves at the bottom of the panel and the bottom plate, and are respectively welded and fixed with the panel and the bottom plate; The connecting assembly comprises an oil press flange, an oil press flange nut and an internal hexagonal flat end set screw; wherein an axial round through hole is formed on the oil press flange, and a stepped circular groove is formed on the bottom surface of the oil press flange; after the oil press shaft is inserted into the axial round through hole, the oil press flange nut is installed in the stepped circular groove to fixedly connect the oil press shaft and the oil press flange; a T-shaped groove is formed on the bottom surface of the oil press flange for installation of a T-shaped groove bolt; a threaded stepped hole perpendicular to the axial round through hole is formed on the side wall of the oil press flange, and the internal hexagonal flat end set screw is screwed into the threaded stepped hole to tighten the oil press shaft; The press head assembly comprises a press head, a T-shaped groove bolt, a hexagonal flange nut and a rolling bearing steel ball; wherein the press head is a T-L type structure, the T-shaped horizontal end is a cuboid structure, and four round through holes are symmetrically formed; the L-shaped structure is located at the lower part of the T-shaped horizontal end, and a round through hole is formed at the tail end of the L-shaped structure, the axis of the round through hole is parallel to the axes of the four round through holes of the T-shaped horizontal end; a cylindrical groove is formed on the lowermost end surface of the T-L type structure of the press head, and the cylindrical groove is concentric with the round through hole at the tail end of the L-shaped structure; the rolling bearing steel ball is bonded in the cylindrical groove; the bottom of the rolling bearing steel ball protrudes from the lowermost end surface of the T-L type structure of the press head; the rolling bearing steel ball is replaced through the round through hole at the tail end of the L-shaped structure; the T-shaped groove bolt passes through the round through hole of the T-shaped horizontal end and is tightly connected through the hexagonal flange nut; The rotating base is a disc structure and is placed on the oil press platform; a recess is formed on the top of the rotating base, and a plurality of circular through holes are formed in the recess; the tray assembly is placed in the recess of the rotating base through the bottom plate, and the positioning round through holes of the bottom plate are radially concentric with the circular through holes of the rotating base; the positioning pin is inserted into the positioning round through holes of the bottom plate and the circular through holes of the rotating base to fixedly connect the tray assembly and the rotating base.

2. The wheel bolt press-in tool of claim 1, wherein, A round through hole is formed at the center of the panel.

3. The wheel bolt press-in tool of claim 1, wherein, A round through hole is formed at the center of the bottom plate.

4. The wheel bolt press-in tool of claim 1, wherein, The specifications of the stepped circular grooves on the bottom plate are the same as those on the panel.

5. The wheel bolt press-in tool of claim 1, wherein, The support is a steel pipe structure.

6. The wheel bolt press-in tool of claim 1, wherein, Two symmetrical T-shaped grooves are formed on the bottom surface of the oil press flange with the axis of the axial round through hole as the reference.

7. The wheel bolt press-in tool of claim 1, wherein, The rolling bearing steel ball is bonded in the cylindrical groove by glass glue.

8. The wheel bolt press-in tool of claim 1, wherein, The recess of the rotating base is filled with lubricating grease.

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