Automobile brake disc and wheel hub bearing positioning device and use method

Abstract

The present invention relates to the field of automobile manufacturing technology, and specifically to a positioning device for automobile brake disc and wheel hub bearing and a method of use, which is used for assembling brake disc and wheel hub bearing and detecting end runout. The positioning device includes a workbench, a first positioning fixture, a second positioning fixture and a transport mechanism. The workbench is provided with a first strip hole and a second strip hole; the first positioning fixture is used for clamping and positioning the brake disc and the wheel hub bearing during assembly; the second positioning fixture is used for clamping and positioning the assembly during end runout detection; the transport mechanism can move along the first strip hole and the second strip hole, so as to move the brake disc and the wheel hub bearing between the first positioning fixture and the second positioning fixture. Thus, the assembly process of assembling the brake disc and the wheel hub bearing to form an assembly and the positioning process of detecting the end runout of the assembly can be integrated into one station to complete, simplify the process flow, reduce the occupied space, and improve production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and specifically provides an automobile brake disc and wheel hub bearing positioning device and a use method thereof. Background Art

[0002] The brake disc is a key component of the automobile braking system. The car uses the brake disc to achieve braking during driving. The end runout of the automobile brake disc is one of the key parameters of the automobile braking system. Unqualified end runout will lead to serious consequences such as shaking, whistling and even brake failure during the braking process of the car. In the car, the brake disc is installed together with the wheel hub bearing. Its end runout is not only affected by its own surface flatness, but also by the assembly quality with the wheel hub bearing. Therefore, automobile manufacturers generally need to assemble the brake disc and the wheel hub bearing together to form an assembly first, and then test the end runout of the assembly. After passing the test, it will be assembled with the next component.

[0003] The existing automobile manufacturing process often separates the assembly of brake discs and wheel hub bearings from the detection of end runout, each of which occupies a production station, resulting in large space occupation, high cost, and low production efficiency. On the other hand, the method of assembling the brake disc and wheel hub bearing is different from the method of detecting the end runout of the assembly after assembly, resulting in the existing positioning tooling generally only being able to meet one positioning requirement and having a relatively single function. For example, the positioning tooling used in the brake disc end runout detection equipment can only carry the brake disc, not the wheel hub bearing, and cannot achieve continuous assembly and detection of the brake disc and wheel hub bearing. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention provides a positioning device for automobile brake disc and wheel hub bearing and a method for using the same, which can integrate the assembly process of assembling the brake disc and the wheel hub bearing to form an assembly and the positioning process of detecting the end runout of the assembly into one workstation, thereby simplifying the process flow, reducing occupied space and improving production efficiency.

[0005] An embodiment of the first aspect of the present invention provides an automobile brake disc and wheel hub bearing positioning device, which is used for assembling brake discs and wheel hub bearings to form an assembly and detecting the end runout of the assembly. The device specifically comprises a workbench, a first positioning fixture, a second positioning fixture and a conveying mechanism. The workbench is provided with a first strip hole and a second strip hole along a first direction; the first positioning fixture is arranged at the first end of the workbench along the first direction, and the first positioning fixture is used to clamp and position the brake disc and the wheel hub bearing during the assembly process; the second positioning fixture is arranged at the second end of the workbench along the first direction, and the second positioning fixture is used to clamp and position the assembly during the end runout detection process; the conveying mechanism is arranged on the workbench, and the conveying mechanism is installed on the first strip hole and the second strip hole, so that the conveying mechanism can move along the first strip hole and the second strip hole, thereby moving the brake disc and the wheel hub bearing between the first positioning fixture and the second positioning fixture.

[0006] Preferably, the first strip-shaped hole and the second strip-shaped hole are parallel to each other; and the first strip-shaped hole and the second strip-shaped hole are equal in length.

[0007] Preferably, the first positioning tool includes a first support seat and a first center column, the top of the first support seat is provided with an annular groove, and the bottom of the annular groove is provided with a first accommodating cavity; the first center column is arranged at the bottom of the first accommodating cavity along the vertical direction; wherein, the first accommodating cavity and / or the first center column are used to place the wheel hub bearing.

[0008] Preferably, the inner diameter of the first accommodating cavity is equal to the outer diameter of the wheel hub bearing; and / or the outer diameter of the first central column is equal to the inner diameter of the wheel hub bearing.

[0009] Preferably, the annular groove includes a first base surface groove and a second base surface groove, the first base surface groove is opened at the top of the first support seat; the second base surface groove is opened at the bottom of the first base surface groove; wherein the first base surface groove and the second base surface groove have the same shape, and the size of the first base surface groove is larger than the size of the second base surface groove.

[0010] Preferably, the second positioning tool includes a second support seat and a second center column, and the top of the second support seat is provided with a second accommodating cavity; the second center column is arranged at the bottom of the second accommodating cavity along the vertical direction; wherein the second accommodating cavity and / or the second center column are used to place the assembly.

[0011] Preferably, the inner diameter of the second accommodating cavity is equal to the outer diameter of the assembly; and / or the outer diameter of the second central column is equal to the inner diameter of the assembly.

[0012] Preferably, the transport mechanism includes a first support plate, a second support plate, a bracket, a tray, a first cylinder and a second cylinder, the first support plate is connected to the bottom of the workbench, and a guide rail is arranged on the first support plate in the first direction; the second support plate is located below the first support plate, and a slide groove is arranged on the second support plate, and the slide groove is slidably connected to the guide rail, and a plurality of sleeves are also arranged along the vertical direction on the second support plate; the bracket includes an annular support frame, a sliding rod and a third support plate, the annular support frame is located above the workbench, a plurality of sliding rods are connected to the bottom of the annular support frame in the vertical direction, the sliding rods are respectively penetrated in the first strip hole and the second strip hole, and slidably penetrated in the sleeve, and the third support plate is connected to the bottom of all the sliding rods in sequence; the tray is connected to the top of the annular support frame, and the tray is used to place the assembly; the first cylinder is connected to the first support plate and the second support plate, and the first cylinder is used to drive the second support plate to slide along the guide rail; the second cylinder is connected to the second support plate and the third support plate, and the second cylinder is used to drive the bracket to rise and fall in the vertical direction.

[0013] Preferably, an upper circular groove is provided at the top of the tray, and a lower circular groove is provided at the bottom of the upper circular groove; wherein the diameter of the upper circular groove is greater than the diameter of the lower circular groove.

[0014] The second aspect of the present invention provides a method for using a vehicle brake disc and wheel hub bearing positioning device, which specifically includes:

[0015] S102: placing the wheel hub bearing on a first positioning fixture, and assembling the wheel hub bearing and the brake disc to form an assembly;

[0016] S104: Using a transport mechanism to move the assembly to a second positioning fixture;

[0017] S106: placing the assembly on a second positioning fixture and detecting the end runout of the assembly;

[0018] S108: Use the transport mechanism to move the assembly to the first positioning fixture and remove the assembly.

[0019] Compared with the prior art, the present invention can achieve the following beneficial effects: a vehicle brake disc and wheel hub bearing positioning device is used for assembling the brake disc and the wheel hub bearing to form an assembly and detecting the end runout of the assembly, specifically comprising a workbench, a first positioning tool, a second positioning tool and a conveying mechanism, the workbench is provided with a first strip hole and a second strip hole along a first direction; the first positioning tool is arranged at the first end of the workbench along the first direction, and the first positioning tool is used to clamp and position the brake disc and the wheel hub bearing during the assembly process; the second positioning tool is arranged at the second end of the workbench along the first direction, and the second positioning tool is used to clamp and position the assembly during the end runout detection process; the conveying mechanism is arranged on the workbench, and the conveying mechanism is installed on the first strip hole and the second strip hole, so that the conveying mechanism can move along the first strip hole and the second strip hole, thereby moving the brake disc and the wheel hub bearing between the first positioning tool and the second positioning tool. As a result, the assembly process of assembling the brake disc and the wheel hub bearing to form an assembly and the positioning process of detecting the end runout of the assembly can be integrated into one workstation, simplifying the process flow, reducing occupied space and improving production efficiency.

[0020] Among them, the inner diameter of the first accommodating cavity is equal to the outer diameter of the wheel hub bearing, so that the first accommodating cavity can position the wheel hub bearing whose outer diameter is the same as the inner diameter of the first accommodating cavity; the outer diameter of the first center column is equal to the inner diameter of the wheel hub bearing, so that the first center column can position the wheel hub bearing whose inner diameter is the same as the outer diameter of the first center column; that is, the first positioning tool is suitable for wheel hub bearings of different specifications.

[0021] Among them, the inner diameter of the second accommodating chamber is equal to the outer diameter of the assembly, so that the second accommodating chamber can position the assembly whose outer diameter is the same as the inner diameter of the second accommodating chamber; the outer diameter of the second center column is equal to the inner diameter of the assembly, so that the second center column can position the assembly whose inner diameter is the same as the outer diameter of the second center column; that is, the second positioning tool is suitable for brake discs and wheel hub bearing assemblies of different specifications.

[0022] Among them, the conveying mechanism is provided with a guide rail slide assembly, so that the conveying mechanism as a whole can move horizontally along the first direction, thereby moving the brake disc and the wheel hub bearing between the first positioning fixture and the second positioning fixture; the conveying mechanism is also provided with a sleeve slide rod assembly, so that the bracket can move up and down in the vertical direction, thereby taking and placing the brake disc and the wheel hub bearing on the first positioning fixture or the second positioning fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a vehicle brake disc and wheel hub bearing positioning device provided according to an embodiment of the first aspect of the present invention;

[0024] Figure 2 is a structural schematic diagram of a first positioning tool provided according to an embodiment of the first aspect of the present invention;

[0025] Figure 3 is a schematic structural diagram of a second positioning tool provided according to an embodiment of the first aspect of the present invention;

[0026] Figure 4 is a schematic structural diagram of a transport mechanism provided according to an embodiment of the first aspect of the present invention;

[0027] Figure 5 It is a flow chart of a method for using a vehicle brake disc and wheel hub bearing positioning device provided according to an embodiment of the second aspect of the present invention.

[0028] The accompanying drawings include: 1 workbench, 11 first strip hole, 12 second strip hole, 2 first positioning tool, 21 first support seat, 22 first accommodating cavity, 23 first central column, 241 first base surface groove, 242 second base surface groove, 3 second positioning tool, 31 second support seat, 32 second accommodating cavity, 33 second central column, 4 transport mechanism, 41 first support plate, 411 guide rail, 42 second support plate, 421 slide groove, 422 sleeve, 431 annular support frame, 432 slide rod, 433 third support plate, 44 tray, 441 upper circular groove, 442 lower circular groove, 45 first cylinder, 46 second cylinder. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0031] Refer to the following Figures 1 to 5 A vehicle brake disc and wheel hub bearing positioning device and a method of use are described according to some embodiments of the present invention. The first direction refers to the horizontal moving direction of the transport mechanism 4, the first end refers to the end of the workbench 1 where the first positioning fixture 2 is set, and the second end refers to the end of the workbench 1 where the second positioning fixture 3 is set.

[0032] like Figure 1As shown, a positioning device for automobile brake disc and wheel hub bearing provided according to an embodiment of the first aspect of the present invention is used for assembling brake disc and wheel hub bearing to form an assembly and detecting the end runout of the assembly, and specifically comprises a workbench 1, a first positioning fixture 2, a second positioning fixture 3 and a transport mechanism 4. Thus, the assembly process of assembling brake disc and wheel hub bearing to form an assembly and the positioning process of detecting the end runout of the assembly can be integrated into one station to complete, simplifying the process flow, reducing the occupied space and improving the production efficiency.

[0033] The workbench 1 is used as a workbench to perform all operations during the assembly and testing of the brake disc and the wheel hub bearing. An empty area is reserved on the workbench 1 for installing a testing device to test the brake disc and the wheel hub bearing. The workbench 1 is provided with a first strip hole 11 and a second strip hole 12 along a first direction.

[0034] Among them, the first positioning tool 2 is arranged at the first end of the workbench 1 along the first direction, and the first positioning tool 2 is used to clamp and position the brake disc and the wheel hub bearing during the assembly process; the second positioning tool 3 is arranged at the second end of the workbench 1 along the first direction, and the second positioning tool 3 is used to clamp and position the assembly during the end runout detection process.

[0035] The transport mechanism 4 is arranged on the workbench 1, and is installed on the first strip hole 11 and the second strip hole 12, so that the transport mechanism 4 can move along the first strip hole 11 and the second strip hole 12. That is to say, the transport mechanism 4 can move horizontally along the first direction, so as to move the brake disc and the wheel hub bearing between the first positioning fixture 2 and the second positioning fixture 3, and shorten the transport time of the brake disc and the wheel hub bearing between the assembly station and the inspection station. The transport mechanism 4 can also move up and down in the vertical direction, so as to pick up and place the brake disc and the wheel hub bearing on the first positioning fixture 2 or the second positioning fixture 3.

[0036] like Figure 1 As shown, the first strip-shaped hole 11 and the second strip-shaped hole 12 are parallel to each other, and the lengths of the first strip-shaped hole 11 and the second strip-shaped hole 12 are equal.

[0037] Specifically, the first strip hole 11 and the second strip hole 12 are arranged to be located on both sides of the first positioning fixture 2 and the second positioning fixture 3, respectively, so that when the transport mechanism 4 moves along the first strip hole 11 and the second strip hole 12, the brake disc and the wheel hub bearing can be moved between the first positioning fixture 2 and the second positioning fixture 3. The center line of the first positioning fixture 2 and the second positioning fixture 3 is parallel to the first strip hole 11 and the second strip hole 12 along the first direction.

[0038] like Figure 2As shown, the first positioning fixture 2 includes a first support seat 21 and a first central column 23. The first support seat 21 is dumbbell-shaped, and an annular groove is provided on the top. A first accommodating cavity 22 is provided at the bottom of the annular groove, and the first central column 23 is vertically arranged at the bottom of the first accommodating cavity 22. The first accommodating cavity 22 and the first central column 23 are respectively used to place wheel hub bearings of different specifications.

[0039] A cavity is provided at the bottom of the first accommodating cavity 22 , a partition is provided between the first accommodating cavity 22 and the cavity, a through hole is provided at the center of the partition, and the bottom of the first central column 23 is fixedly connected to the partition through the through hole.

[0040] It is understandable that, due to the different specifications of the wheel hub bearings, the inner diameter of the first accommodating cavity 22 is set to be equal to the outer diameter of the wheel hub bearing, so that the inner side wall of the first accommodating cavity 22 can position the wheel hub bearing whose outer diameter is the same as the inner diameter of the first accommodating cavity 22. Alternatively, the outer diameter of the first central column 23 is set to be equal to the inner diameter of the wheel hub bearing, so that the outer surface of the first central column 23 can position the wheel hub bearing whose inner diameter is the same as the outer diameter of the first central column 23.

[0041] During assembly, when the outer diameter of the wheel hub bearing is equal to the inner diameter of the second accommodating chamber 32, the wheel hub bearing is placed inside the second accommodating chamber 32, so that the outer ring of the wheel hub bearing is closely fitted with the inner side wall of the second accommodating chamber 32; when the outer diameter of the wheel hub bearing is smaller than the inner diameter of the second accommodating chamber 32, the wheel hub bearing is placed inside the second accommodating chamber 32, so that the inner ring of the wheel hub bearing is closely fitted with the outer surface of the first central column 23. In this way, the vertical and horizontal movements of the wheel hub bearing can be restricted.

[0042] The wheel hub bearings of different specifications refer to wheel hub bearings whose outer flange and the second accommodating cavity 32 have the same shape but different diameters.

[0043] like Figure 2 As shown, the annular groove includes a first base surface groove 241 and a second base surface groove 242. The first base surface groove 241 is opened at the top of the first support seat 21; the second base surface groove 242 is opened at the bottom of the first base surface groove 241. The shapes of the first base surface groove 241 and the second base surface groove 242 are the same, that is, the shapes of the first base surface groove 241 and the second base surface groove 242 are suitable for matching the outer flange of the hub bearing, and the size of the first base surface groove 241 is larger than the size of the second base surface groove 242, so that the first base surface groove 241 and the second base surface groove 242 can be used to place hub bearings with different outer flange diameters.

[0044] Specifically, when the wheel hub bearing is placed inside the second accommodating chamber 32, the outer flange is mounted on the first base surface groove 241 or the second base surface groove 242 according to the size of the outer flange on the wheel hub bearing, and is suspended downward inside the second accommodating chamber 32, so that the bottom surface of the outer flange fits with the bottom surface of the first base surface groove 241 or the second base surface groove 242, and the side surface of the outer flange fits with the inner side wall of the first base surface groove 241 or the second base surface groove 242. In this way, the circumferential movement of the wheel hub bearing can be restricted, and the wheel hub bearing can be circumferentially positioned.

[0045] It can be understood that for front-wheel drive vehicles, the diameter of the front wheel hub bearing is usually larger than the diameter of the rear wheel hub bearing. Therefore, when assembling the front wheel hub bearing and the brake disc, the front wheel hub bearing can be placed inside the first base surface groove 241; when assembling the rear wheel hub bearing and the brake disc, the rear wheel hub bearing can be placed inside the second base surface groove 242.

[0046] like Figure 3 As shown, the second positioning fixture 3 includes a second support seat 31 and a second central column 33. The second support seat 31 is dumbbell-shaped, with a second accommodating cavity 32 on the top, and the second central column 33 is vertically arranged at the bottom of the second accommodating cavity 32. The second accommodating cavity 32 and the second central column 33 are respectively used to place assemblies of different specifications that have been assembled on the first positioning fixture 2.

[0047] It is understandable that, due to the different specifications of the brake disc and the hub bearing assembly, the inner diameter of the second accommodating chamber 32 is set equal to the outer diameter of the assembly, so that the inner side wall of the second accommodating chamber 32 can position the assembly with the same outer diameter as the inner diameter of the second accommodating chamber 32. Alternatively, the outer diameter of the second central column 33 is set equal to the inner diameter of the assembly, so that the outer surface of the second central column 33 can position the assembly with the same inner diameter as the outer diameter of the second central column 33.

[0048] During the test, when the outer diameter of the brake disc and wheel hub bearing assembly is equal to the inner diameter of the second accommodating chamber 32, the assembly is placed inside the second accommodating chamber 32 so that the outer ring of the assembly is closely fitted with the inner wall of the second accommodating chamber 32; when the outer diameter of the assembly is smaller than the inner diameter of the second accommodating chamber 32, the assembly is placed inside the second accommodating chamber 32 so that the inner ring of the assembly is closely fitted with the outer surface of the second central column 33. In this way, the vertical and horizontal movements of the assembly can be restricted.

[0049] like Figure 4As shown, the transport mechanism 4 includes a first support plate 41, a second support plate 42, a bracket, a tray 44, a first cylinder 45 and a second cylinder 46. The first support plate 41 is fixedly connected to the bottom of the workbench 1, a guide rail 411 is arranged on the first support plate 41 along the first direction, the second support plate 42 is located below the first support plate 41, a slide groove 421 is arranged on the second support plate 42, and the slide groove 421 is slidably connected to the guide rail 411, so that the second support plate 42 can slide along the guide rail 411, thereby driving the transport mechanism 4 to move horizontally along the first direction as a whole, thereby moving the brake disc and the wheel hub bearing between the first positioning fixture 2 and the second positioning fixture 3.

[0050] Among them, a plurality of sleeves 422 are also provided on the second support plate 42 in the vertical direction. The bracket includes an annular support frame 431, a slide bar 432 and a third support plate 433. The annular support frame 431 is located above the workbench 1 and is used to place the tray 44; a plurality of slide bars 432 are connected to the bottom of the annular support frame 431 in the vertical direction, and the slide bars 432 are respectively penetrated through the first strip hole 11 and the second strip hole 12, and are slidably penetrated through the sleeve 422, extending to the bottom of the workbench 1, so that the bracket can drive the tray 44 to move up and down in the vertical direction, so as to pick up and place the brake disc and the wheel hub bearing on the first positioning fixture 2 or the second positioning fixture 3; the third support plate 433 is sequentially connected to the bottom of all the slide bars 432, and is used to provide a support point for the second cylinder 46; the tray 44 is fixedly connected to the top of the annular support frame 431, and the tray 44 is used to place the assembly.

[0051] The first cylinder 45 is connected to the first support plate 41 and the second support plate 42, and is used to drive the second support plate 42 to slide along the guide rail 411, so that the bracket can drive the tray 44 to move the brake disc and the wheel hub bearing in the horizontal direction. The second cylinder 46 is connected to the second support plate 42 and the third support plate 433, and is used to drive the bracket to rise and fall in the vertical direction.

[0052] like Figure 4 As shown, an upper circular groove 441 is formed at the top of the tray 44, and a lower circular groove 442 is formed at the bottom of the upper circular groove 441. The diameter of the upper circular groove 441 is larger than the diameter of the lower circular groove 442, so that the upper circular groove 441 and the lower circular groove 442 can be used to carry brake discs of different specifications. In other words, a brake disc with a larger diameter can be placed inside the upper circular groove 441, and a brake disc with a smaller diameter can be placed inside the lower circular groove 442.

[0053] Specifically, when the tray 44 is used to carry the brake disc and the wheel hub bearing assembly, the detection surface of the brake disc faces upward and the non-detection surface faces downward, and the wheel hub bearing hangs downward from the middle opening of the annular tray 44 so that the bottom of the non-detection surface fits against the bottom surface of the upper circular groove 441 or the lower circular groove 442.

[0054] Preferably, the tray 44 is made of nylon material.

[0055] like Figure 5 As shown, a method for using a vehicle brake disc and wheel hub bearing positioning device according to an embodiment of the second aspect of the present invention is used to position the brake disc and wheel hub bearing during assembly and testing, and the working process is as follows:

[0056] S102: placing the wheel hub bearing on the first positioning fixture 2, and assembling the wheel hub bearing and the brake disc to form an assembly.

[0057] First, place the wheel hub bearing in the second accommodation cavity 32 in the direction of the wheel bolts upward, and mount the outer flange on the first base surface groove 241 or the second base surface groove 242 according to the specifications of the outer flange. Then place the brake disc on the wheel hub bearing in the direction of the detection surface upward, so that the non-detection surface of the brake disc is downward, and the wheel bolts are inserted into the screw holes of the brake disc. Then use a nail gun to screw the screws into the screw holes of the brake disc, thereby fixing the brake disc and the wheel hub bearing.

[0058] S104: Use the transport mechanism 4 to move the brake disc and wheel hub bearing assembly to the second positioning fixture 3.

[0059] First, the second cylinder 46 is activated to drive the transport mechanism 4 to rise, and the brake disc and the wheel hub bearing assembly are loaded into the tray 44. According to the diameter of the brake disc, the edge of the brake disc can automatically fall into the upper circular groove 441 or the lower circular groove 442. Then, the first cylinder 45 is activated to drive the transport mechanism 4 to move horizontally in the first direction, so that the brake disc and the wheel hub bearing assembly are located above the second positioning fixture 3.

[0060] S106: placing the brake disc and wheel hub bearing assembly on the second positioning fixture 3, and detecting the end runout of the brake disc and wheel hub bearing assembly.

[0061] First, the second cylinder 46 is started to drive the transport mechanism 4 to descend, and the brake disc and wheel hub bearing assembly is placed on the second positioning fixture 3, so that the wheel hub bearing falls into the second accommodating cavity 32, and the non-detection surface of the brake disc is in contact with the upper surface of the second positioning fixture 3. Then, the rotating device can be used to drive the brake disc and wheel hub bearing assembly to rotate, and the end runout of the brake disc and wheel hub bearing assembly can be detected by the detection device.

[0062] S108: Use the transport mechanism 4 to move the brake disc and wheel hub bearing assembly to the first positioning fixture 2, and remove the brake disc and wheel hub bearing assembly.

[0063] After the inspection is completed, the second cylinder 46 is started to drive the transport mechanism 4 to rise, and the brake disc and wheel hub bearing assembly are loaded into the tray 44. The first cylinder 45 is then started to drive the transport mechanism 4 to move horizontally in the first direction, so that the brake disc and wheel hub bearing assembly return to the top of the first positioning fixture 2. The second cylinder 46 is started to drive the transport mechanism 4 to descend, and the brake disc and wheel hub bearing assembly are placed on the first positioning fixture 2, so that the wheel hub bearing falls into the second accommodating chamber 32. The brake disc and wheel hub bearing assembly are removed, and the assembly and inspection workflow is completed.

[0064] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0065] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A positioning device for a brake disc and a wheel hub bearing of an automobile, used for assembling the brake disc and the wheel hub bearing to form an assembly and detecting the end runout of the assembly, characterized in that: include: A workbench (1), wherein the workbench (1) is provided with a first strip-shaped hole (11) and a second strip-shaped hole (12) along a first direction; A first positioning tool (2), the first positioning tool (2) being arranged at a first end of the workbench (1) along a first direction, the first positioning tool (2) being used for clamping and positioning the brake disc and the wheel hub bearing during an assembly process; A second positioning tool (3), the second positioning tool (3) being arranged at the second end of the workbench (1) along the first direction, the second positioning tool (3) being used for clamping and positioning the assembly during the end runout detection process; The second positioning tool (3) comprises: a second support seat (31), the top of which is provided with a second accommodating cavity (32); a second central column (33), the second central column (33) being arranged at the bottom of the second accommodating cavity (32) along a vertical direction; wherein the second accommodating cavity (32) and / or the second central column (33) are used to place the assembly; The inner diameter of the second accommodating cavity (32) is equal to the outer diameter of the assembly; and / or the outer diameter of the second central column (33) is equal to the inner diameter of the assembly; During assembly, when the outer diameter of the wheel hub bearing is equal to the inner diameter of the second accommodating chamber (32), the wheel hub bearing is placed inside the second accommodating chamber (32), so that the outer ring of the wheel hub bearing is tightly fitted with the inner side wall of the second accommodating chamber (32); when the outer diameter of the wheel hub bearing is smaller than the inner diameter of the second accommodating chamber (32), the wheel hub bearing is placed inside the second accommodating chamber (32), so that the inner ring of the wheel hub bearing is tightly fitted with the outer surface of the first central column (23); A transport mechanism (4), wherein the transport mechanism (4) is disposed on the workbench (1), and the transport mechanism (4) is installed on the first strip-shaped hole (11) and the second strip-shaped hole (12), so that the transport mechanism (4) can move along the first strip-shaped hole (11) and the second strip-shaped hole (12), thereby moving the brake disc and the wheel hub bearing between the first positioning fixture (2) and the second positioning fixture (3).

2. The automobile brake disc and wheel hub bearing positioning device according to claim 1, characterized in that: The first strip-shaped hole (11) and the second strip-shaped hole (12) are parallel to each other; The first strip-shaped hole (11) and the second strip-shaped hole (12) are of equal length.

3. The automobile brake disc and wheel hub bearing positioning device according to claim 1, characterized in that: The first positioning tool (2) comprises: A first support seat (21), wherein a ring-shaped groove is formed at the top of the first support seat (21), and a first accommodating cavity (22) is formed at the bottom of the ring-shaped groove; A first central column (23), the first central column (23) being arranged at the bottom of the first accommodating cavity (22) along a vertical direction; Wherein, the first accommodating cavity (22) and / or the first central column (23) are used to place the wheel hub bearing.

4. The automobile brake disc and wheel hub bearing positioning device according to claim 3 is characterized in that: The inner diameter of the first accommodating cavity (22) is equal to the outer diameter of the wheel hub bearing; And / or the outer diameter of the first central column (23) is equal to the inner diameter of the wheel hub bearing.

5. The automobile brake disc and wheel hub bearing positioning device according to claim 3, characterized in that: The annular groove comprises: A first base surface groove (241), wherein the first base surface groove (241) is opened at the top of the first support seat (21); A second base surface groove (242), wherein the second base surface groove (242) is opened at the bottom of the first base surface groove (241); The first base surface groove (241) and the second base surface groove (242) have the same shape, and the size of the first base surface groove (241) is larger than the size of the second base surface groove (242).

6. The automobile brake disc and wheel hub bearing positioning device according to claim 1, characterized in that: The transport mechanism (4) comprises: A first support plate (41), the first support plate (41) being connected to the bottom of the workbench (1), and a guide rail (411) being arranged on the first support plate (41) along a first direction; a second support plate (42), the second support plate (42) being located below the first support plate (41), the second support plate (42) being provided with a slide groove (421), the slide groove (421) being slidably connected to the guide rail (411), and the second support plate (42) being further provided with a plurality of sleeves (422) along a vertical direction; A bracket, the bracket comprising an annular support frame (431), a sliding rod (432) and a third support plate (433), the annular support frame (431) is located above the workbench (1), a plurality of sliding rods (432) are connected to the bottom of the annular support frame (431) in a vertical direction, the sliding rods (432) are respectively penetrated through the first strip hole (11) and the second strip hole (12), and are slidably penetrated through the sleeve (422), and the third support plate (433) is sequentially connected to the bottoms of all the sliding rods (432); A tray (44), the tray (44) being connected to the top of the annular support frame (431), and the tray (44) being used to place the assembly; a first cylinder (45), the first cylinder (45) being connected to the first support plate (41) and the second support plate (42), the first cylinder (45) being used to drive the second support plate (42) to slide along the guide rail (411); A second cylinder (46), the second cylinder (46) is connected to the second support plate (42) and the third support plate (433), and the second cylinder (46) is used to drive the bracket to rise and fall in a vertical direction.

7. The automobile brake disc and wheel hub bearing positioning device according to claim 6, characterized in that: An upper circular groove (441) is formed at the top of the tray (44), and a lower circular groove (442) is formed at the bottom of the upper circular groove (441); Wherein, the diameter of the upper circular groove (441) is greater than the diameter of the lower circular groove (442).

8. A method for using the automobile brake disc and wheel hub bearing positioning device according to any one of claims 1 to 7, characterized in that: include: Placing the wheel hub bearing on the first positioning fixture (2), and assembling the wheel hub bearing and the brake disc to form the assembly; Using the transport mechanism (4) to move the assembly to the second positioning tool (3); Placing the assembly on the second positioning fixture (3) and detecting the end jump amount of the assembly; The assembly is moved to the first positioning fixture (2) using the transport mechanism (4) to remove the assembly.

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