A hub PCD hole positioning device

Abstract

The utility model discloses a kind of hub PCD hole positioning devices, including base, the top surface middle part of the base is formed with multiple positioning mounting holes, the bottom surface of positioning column is pressed on the top surface of base, the bottom surface middle part of positioning column is formed with the circular protruding connecting portion extending downward, circular protruding connecting portion is inserted in positioning mounting hole, it is matched with positioning mounting hole, positioning column is fixedly connected on base by fixed bolt, the top surface middle part of positioning column is formed with the positioning cylindrical portion extending upward, eccentric steel sleeve is inserted on circular protruding connecting portion, the bottom surface of eccentric steel sleeve is pressed on the top surface of positioning column, it can be according to the distance of different hub PCD hole, install different types of eccentric steel sleeve just can install the hub that positioning needs to install, can be processed, without reassembling base and other components, improve processing efficiency, reduce artificial labor.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing equipment technology, and more specifically to a wheel hub PCD hole positioning device. Background Technology

[0002] In the machining and other processing of existing wheel hubs, they need to be installed in a clamping mechanism. Generally, multiple positioning pins for positioning PCD holes are fixed on the mounting base. The hub of the wheel hub is placed on the positioning pins, and the positioning protrusion formed on the top of the positioning pin is inserted into the corresponding PCD hole to achieve positioning.

[0003] However, since the positions of the PCD holes vary slightly between different wheel hubs (e.g., the distance from the center of the wheel hub to one of the PCD holes is 65mm, while for others it is 63.5mm), two sets of clamping devices are required. One set has a locating pin fixed on one base with a center distance of 65mm from the center of the base's central axis, and the other set has a locating pin fixed on another base with a center distance of 63.5mm from the base's central axis. To accommodate different wheel hubs, multiple sets of clamping devices are needed, which is costly. Furthermore, the bases need to be installed into the corresponding clamping devices, requiring the disassembly of the corresponding bases to clamp different wheel hubs, making assembly and disassembly cumbersome and resulting in less than ideal performance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wheel hub PCD hole positioning device. It can install different types of eccentric steel sleeves according to the distance of the PCD holes of different wheel hubs to position the wheel hubs to be installed, so that processing can be carried out without disassembling and reassembling the base and other components, thereby improving processing efficiency and reducing manual labor.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A hub PCD hole positioning device includes a base, a plurality of positioning mounting holes are formed in the center of the top surface of the base, the bottom surface of a positioning post presses against the top surface of the base, a downwardly extending circular protruding connecting part is formed in the center of the bottom surface of the positioning post, the circular protruding connecting part is inserted into the positioning mounting holes and cooperates with the positioning mounting holes, the positioning post is fixedly connected to the base by fixing bolts, and an upwardly extending positioning cylindrical part is formed in the center of the top surface of the positioning post, an eccentric steel sleeve is inserted into the circular protruding connecting part, and the bottom surface of the eccentric steel sleeve presses against the top surface of the positioning post;

[0007] The bottom outer side wall of the eccentric steel sleeve is formed with an outwardly extending annular portion. The top surface of the outwardly extending annular portion is a conical wall surface that extends obliquely downward from the inside to the outside. All positioning pins are inserted into the corresponding PCD holes of the wheel hub to be processed. The top surface of the outwardly extending annular portion of the eccentric steel sleeve is pressed against the conical wall surface of the top edge of the PCD hole. The eccentric steel sleeve is inserted into the central vertical through hole formed in the middle of the top surface of the PCD hole. The upper part of the eccentric steel sleeve is inserted into the corresponding central vertical through hole, and its outer side wall is close to or tightly attached to the inner side wall of the corresponding central vertical through hole.

[0008] The top edge of the positioning post is formed with an upwardly extending protruding positioning limiting part, which is inserted into the positioning hole formed on the bottom edge of the eccentric steel sleeve and cooperates with the positioning hole.

[0009] The positioning mounting hole is a circular concave hole with a side positioning groove formed on its side wall. The top surface of the side positioning groove extends out of the top surface of the base. A central through hole is formed in the middle of the bottom surface of the circular concave hole. The central through hole communicates with the large-diameter mounting hole formed on the bottom surface of the base. The outer side wall of the circular protrusion connecting part is close to or near the inner side wall of the corresponding circular concave hole. The side positioning protrusion formed on the side wall of the circular protrusion connecting part is inserted into the corresponding side positioning groove and cooperates with the side positioning groove.

[0010] The central through hole of the eccentric steel sleeve is either an eccentric through hole or a central through hole, and the circular protruding connecting part is inserted into the central through hole, with its outer side wall tightly attached to or close to the inner side wall of the central through hole.

[0011] The outstanding effect of this utility model is:

[0012] It can install different types of eccentric steel sleeves according to the distance of the PCD holes of different wheel hubs to install and position the wheel hubs to be installed, and then process them without having to disassemble and reassemble the base and other parts, thus improving processing efficiency and reducing manual labor. Attached Figure Description

[0013] Figure 1 This is a partial structural schematic diagram of the present invention;

[0014] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0015] Figure 3 This is a partial top view of the base of this utility model;

[0016] Figure 4 This is a partial bottom view of the positioning post. Detailed implementation method:

[0017] For example, see below. Figures 1 to 4As shown, a hub PCD hole positioning device includes a base 10. Multiple positioning mounting holes 11 are formed in the center of the top surface of the base 10. All positioning mounting holes 11 are evenly distributed on the top surface of the center of the base 10 with the central axis of the base 10 as the center. In this embodiment, there are five positioning mounting holes 11.

[0018] The bottom surface of the positioning post 20 presses against the top surface of the base 10. A downwardly extending circular protruding connecting part 21 is formed in the middle of the bottom surface of the positioning post 20. The circular protruding connecting part 21 is inserted into the positioning mounting hole 11. The outer side wall of the circular protruding connecting part 21 is close to or tightly attached to the inner side wall of the corresponding positioning mounting hole 11, and it cooperates with the positioning mounting hole 11. An upwardly extending positioning cylindrical part 22 is formed in the middle of the top surface of the positioning post 20. An eccentric steel sleeve 40 is inserted into the circular protruding connecting part 21. The bottom surface of the eccentric steel sleeve 40 presses against the top surface of the positioning post 20.

[0019] The positioning mounting hole 11 is a circular concave hole with a side positioning groove 12 formed on its side wall. The top surface of the side positioning groove 12 extends out of the top surface of the base 10. A central through hole is formed in the middle of the bottom surface of the circular concave hole. The central through hole communicates with the large-diameter mounting hole 13 formed on the bottom surface of the base 10. The side positioning protrusion formed on the side wall of the circular protrusion connecting part 21 is inserted into the corresponding side positioning groove 12 and cooperates with the side positioning groove 12.

[0020] The rotating part of the fixing bolt 30 is inserted into the large-diameter mounting hole 13, and its top surface presses against the top surface of the large-diameter mounting hole 13. The screw part of the fixing bolt 30 is inserted into the central through hole and the positioning mounting hole 11, and it is screwed into the screw hole in the middle of the bottom end face of the positioning post 20.

[0021] Furthermore, an outwardly extending annular portion 41 is formed on the bottom outer wall of the eccentric steel sleeve 40. The top surface of the outwardly extending annular portion 41 is a conical wall surface that extends obliquely downward from the inside out. All positioning pins 20 are inserted into the corresponding PCD holes 101 of the hub 100 to be processed. The top surface of the outwardly extending annular portion 41 of the eccentric steel sleeve 40 presses against the conical wall surface of the top edge of the PCD hole 101. The upper part of the eccentric steel sleeve 40 is inserted into the central vertical through hole formed in the middle of the top surface of the PCD hole 101. The outer wall of the upper part of the eccentric steel sleeve 40 is close to or tightly attached to the inner wall of the corresponding central vertical through hole, and it cooperates with the central vertical through hole.

[0022] Furthermore, the top edge of the positioning post 20 is formed with an upwardly extending protruding positioning limiting part 23, which is inserted into the positioning hole formed on the bottom edge of the eccentric steel sleeve 40, and it cooperates with the positioning hole.

[0023] Furthermore, the central through hole of the eccentric steel sleeve 40 is an eccentric through hole or a central through hole, and the circular protruding connecting part is inserted into the central through hole, with its outer side wall tightly attached to or close to the inner side wall of the central through hole.

[0024] The base 10 is a horizontal plate with elongated grooves 15 extending forward and backward on its left and right sides. A central through groove extending forward and backward is formed in the middle of the bottom surface of the elongated groove 15. The front and rear of the base 10 are both formed with horizontally extending elongated grooves 16. A lower central through groove extending left and right is formed in the middle of the bottom surface of the horizontally extending elongated groove 16.

[0025] In this embodiment, when the distance from the center axis of the PCD hole of the installed hub 100 to the center axis of the hub 100 is 65mm, the central through hole of the eccentric steel sleeve 40 is an eccentric through hole. Figure 1 As shown, the central axis of the central through hole coincides with the central axis of the positioning post 20, and the distance between it and the central axis of the base 10 is 63.5 mm; however, the central axis of the eccentric steel sleeve 40 is eccentrically set with respect to the central axis of the positioning post 20, and the distance between the central axis of the eccentric steel sleeve 40 and the central axis of the base 10 is 65 mm. After the hub 100 is installed on all the positioning posts 20, the upper part of the eccentric steel sleeve 40 is inserted into the central vertical through hole formed in the center of the top surface of the corresponding PCD hole 101. The outer side wall of the upper part of the eccentric steel sleeve 40 is close to or tightly attached to the inner side wall of the corresponding central vertical through hole, and it cooperates with the central vertical through hole. Then, the pressure plate 200 set above presses against the top surface of the hub of the hub 100 to achieve clamping. The pressure plate 200 and other components are conventional structures and will not be described in detail here.

[0026] When the distance from the center axis of the PCD hole of the installed hub 100 to the center axis of the hub 100 is 63.5mm, the central through hole of the eccentric steel sleeve 40 that can be installed is in the center position, and its center axis coincides with the center axis of the eccentric steel sleeve 40. Therefore, it is possible to install hubs 100 with a distance of 63.5mm from the center axis of the PCD hole of the hub 100 to the center axis of the hub 100, which meets the installation and use of hubs 100 with different hole spacing. It does not require disassembling the entire base 10 and other components, which greatly reduces the difficulty of installation and processing, improves the processing and installation efficiency, and reduces the amount of manual labor.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wheel hub PCD bore positioning device comprising a base (10) characterised in that: The base (10) has a plurality of positioning mounting holes (11) formed in the middle of its top surface. The bottom surface of the positioning post (20) presses against the top surface of the base (10). The bottom surface of the positioning post (20) has a downwardly extending circular protruding connecting part (21) formed in the middle of its bottom surface. The circular protruding connecting part (21) is inserted into the positioning mounting hole (11) and cooperates with the positioning mounting hole (11). The positioning post (20) is fixedly connected to the base (10) by fixing bolts (30). The top surface of the positioning post (20) has an upwardly extending positioning cylindrical part (22) formed in the middle of its top surface. The eccentric steel sleeve (40) is inserted into the circular protruding connecting part (21). The bottom surface of the eccentric steel sleeve (40) presses against the top surface of the positioning post (20). The bottom outer side wall of the eccentric steel sleeve (40) is formed with an outwardly extending annular portion (41). The top surface of the outwardly extending annular portion (41) is a conical wall surface that extends obliquely downward from the inside to the outside. All positioning pins (20) are inserted into the corresponding PCD holes (101) of the hub (100) to be processed. The top surface of the outwardly extending annular portion (41) of the eccentric steel sleeve (40) presses against the conical wall surface of the top edge of the PCD hole (101). The eccentric steel sleeve (40) is inserted into the central vertical through hole formed in the middle of the top surface of the PCD hole (101). The upper part of the eccentric steel sleeve (40) is inserted into the corresponding central vertical through hole, and its outer side wall is close to or tightly attached to the inner side wall of the corresponding central vertical through hole.

2. A wheel hub PCD bore locator device according to claim 1, wherein: The top edge of the positioning post (20) is formed with an upwardly extending protruding positioning restriction part (23), which is inserted into the positioning hole formed on the bottom edge of the eccentric steel sleeve (40) and cooperates with the positioning hole.

3. A wheel hub PCD bore locator device according to claim 1, wherein: The positioning mounting hole (11) is a circular concave hole with a side positioning groove (12) formed on its side wall. The top surface of the side positioning groove (12) extends out of the top surface of the base (10). A central through hole is formed in the middle of the bottom surface of the circular concave hole. The central through hole communicates with the large-diameter mounting hole (13) formed on the bottom surface of the base (10). The outer side wall of the circular protrusion connecting part (21) is close to or near the inner side wall of the corresponding circular concave hole. The side positioning protrusion formed on the side wall of the circular protrusion connecting part (21) is inserted into the corresponding side positioning groove (12) and cooperates with the side positioning groove (12). The rotating part of the fixing bolt (30) is inserted into the large-diameter mounting hole (13), and its top surface presses against the top surface of the large-diameter mounting hole (13). The screw part of the fixing bolt (30) is inserted into the central through hole and the positioning mounting hole (11), and it is screwed into the screw hole in the middle of the bottom end face of the positioning post (20).

4. A wheel hub PCD bore locator device according to claim 1, wherein: The central through hole of the eccentric steel sleeve (40) is an eccentric through hole or a central through hole, and the circular protruding connecting part () is inserted into the central through hole, with its outer side wall closely attached to or close to the inner side wall of the central through hole.

5. A wheel hub PCD bore locator device according to claim 1, wherein: The base (10) is a horizontal plate with elongated grooves (15) extending forward and backward on its left and right sides. A central through groove extending forward and backward is formed in the middle of the bottom surface of the elongated groove (15). The front and rear parts of the base (10) are both formed with horizontal elongated grooves (16) extending left and right. A lower central through groove extending left and right is formed in the middle of the bottom surface of the horizontal elongated groove (16).

6. A wheel hub PCD bore locator device according to claim 1, wherein: All positioning and mounting holes (11) are evenly distributed on the top surface of the middle part of the base (10) with the central axis of the base (10) as the center.

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