Multipoint indexing locking ball head assembly

Abstract

The utility model belongs to the technical field of ball head assemblies, and particularly relates to a multi-point indexing locking ball head assembly which comprises a swing arm, a ball head and a positioning piece, an adjusting groove is formed in the ball head installation end of the swing arm, the ball head is installed in the adjusting groove, the positioning piece can slide in the adjusting groove, and a plurality of protrusions are distributed on the circumference of the side, close to the ball head, of the positioning piece at equal intervals. The ball head is correspondingly provided with a plurality of first grooves matched with the protrusions. According to the design, the angle of the ball head is adjusted through the protrusions and the first grooves which are arranged at equal intervals. Compared with an inner dodecagonal sleeving piece and a positioning mounting part, the design is simpler and more convenient in processing, higher in production efficiency and lower in manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ball head assembly, especially relates to a ball head assembly of multi-point indexing locking. BACKGROUND

[0002] The swing arm ball head assembly is an important part in the automobile suspension system, which connects the swing arm and the steering knuckle, mainly functions to transmit force and movement, and allows certain relative movement between the swing arm and the steering knuckle to ensure the driving stability and steering flexibility of the vehicle. Some ball head assemblies with eccentric shafts can adjust the relative angle and distance between the swing arm and the steering knuckle by changing the angle of the ball head, thereby meeting the requirements of four-wheel alignment adjustment of the vehicle and the like.

[0003] For example, the prior application of the company, Chinese patent application No. (2022210156374), discloses a swing arm assembly and a vehicle having the same. A limiting groove is formed on the swing arm, and a positioning washer is arranged in the limiting groove to precisely adjust and lock the angle of the ball head. However, the positioning washer is arranged in the form of an inner twelve-angle sleeve, and a positioning mounting portion corresponding to the positioning washer is arranged on the ball shell. Although the angle can be precisely adjusted and locked, the inner twelve-angle sleeve and the positioning mounting portion are low in processing convenience, high in precision requirement and cost, and low in manufacturing efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned technical problems, and provides a ball head assembly of multi-point indexing locking, which improves the processing convenience and manufacturing efficiency of the positioning sheet, and effectively reduces the manufacturing cost.

[0005] Therefore, the utility model provides a ball head assembly of multi-point indexing locking, which comprises:

[0006] The swing arm comprises a ball head mounting end, and an adjusting groove is formed in the ball head mounting end.

[0007] The ball head is installed at the ball head mounting end at the adjusting groove.

[0008] The positioning sheet is slidably installed in the adjusting groove, and a plurality of protrusions are arranged on the side circumference close to the ball head.

[0009] The ball head is provided with a plurality of first grooves matched with the protrusions.

[0010] In the above technical solution, further:

[0011] The plurality of protrusions are formed by stamping the positioning sheet, and a second groove is formed on the side away from the protrusions.

[0012] In the above technical solution, further:

[0013] The radial section of the protrusion, the first groove and the second groove are all circular.

[0014] In the above technical solution, further:

[0015] The protrusion, the first groove and the second groove are provided with at least two in the circumferential direction.

[0016] In the above technical solution, further, the ball head comprises:

[0017] The ball shell is provided with the ball head pin on one side and the eccentric shaft on the other side.

[0018] The first groove is provided on the surface of the ball shell on the side of the eccentric shaft.

[0019] In the above technical solution, further:

[0020] The positioning sheet is provided with the mounting hole adapted to the eccentric shaft at the axis surrounded by the plurality of protrusions.

[0021] In the above technical solution, further, the ball head further comprises:

[0022] The ball seat is installed between the ball head pin and the ball shell.

[0023] The dust cover is sleeved on the ball shell and wraps the ball seat and the end of the ball head pin located in the ball shell.

[0024] In the above technical solution, further:

[0025] The strip-shaped hole is provided in the adjusting groove, and the eccentric shaft is sequentially threaded through the mounting hole and the strip-shaped hole and is locked and unlocked by the nut.

[0026] The ball head has the advantages that:

[0027] 1. The protrusion and the first groove are arranged at equal intervals to adjust the angle of the ball head, which is more convenient than the machining of the inner twelve-corner sleeve and the positioning installation part, has high production efficiency and low manufacturing cost.

[0028] 2. The protrusion, the first groove and the second groove are circular and are formed by stamping, which can effectively ensure the convenience of machining the protrusion and the groove, has high production efficiency by stamping, generally does not need to be finished after forming, and can effectively reduce the manufacturing cost.

[0029] 3. The mounting hole adapted to the eccentric shaft is provided at the axis surrounded by the plurality of protrusions on the positioning sheet, which can effectively ensure that the plurality of protrusions can continue to cooperate with the plurality of grooves after the ball head is adjusted by the eccentric shaft, effectively ensures the adjustment accuracy and the stability after adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the utility model;

[0031] Figure 2 is an installation schematic view of the positioning sheet on the swing arm of the utility model;

[0032] Figure 3 is a structural schematic view of the positioning sheet of the utility model;

[0033] Figure 4 is an installation schematic view of the positioning sheet on the ball head of the utility model;

[0034] The marks in the figure are as follows: 1, swing arm; 2, ball head mounting end; 3, adjusting groove; 30, strip-shaped hole; 4, ball head; 40, spherical shell; 41, ball head pin; 42, eccentric shaft; 43, ball seat; 44, dust cover; 5, positioning sheet; 6, protrusion; 7, first recess; 8, second recess; 9, mounting hole; 10, nut. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0036] Embodiment 1:

[0037] The embodiment provides a ball head assembly of multi-point indexing locking, comprising:

[0038] The swing arm 1 comprises a ball head mounting end 2, and an adjusting groove 3 is formed in the ball head mounting end 2;

[0039] The ball head 4 is installed at the ball head mounting end 2 at the adjusting groove 3;

[0040] The positioning sheet 5 is slidingly installed in the adjusting groove 3, and a plurality of protrusions 6 are arranged at equal intervals on the side close to the ball head 4;

[0041] The ball head 4 is provided with a plurality of first recesses 7 matched with the protrusions 6;

[0042] Meanwhile, in the embodiment, the protrusions 6 and the positioning sheet 5 can adopt an integral structure, such as stamping, or can adopt a split structure, such as forming a through hole on the positioning sheet 5, and then forming a positioning column by interference fit at the through hole, so that no matter which way the protrusions 6 and the first recesses 7 are formed, the processing of the inner twelve angular sleeve fitting piece and the positioning installation part is more convenient and efficient, and the cost is lower.

[0043] It can be seen from the embodiment that the angle of the ball head 4 is adjusted by the equidistantly arranged protrusions 6 and the first grooves 7, which is more convenient than machining the inner twelve-angle sleeve and the positioning mounting portion, has high production efficiency, and has low manufacturing cost.

[0044] Meanwhile, the adjusting groove 3 is arranged on the swing arm 1, and the positioning piece 5 is slidingly mounted in the adjusting groove 3, so that the ball head 4 not only has rotary angle adjustment, but also can be linearly adjusted along the adjusting groove 3, thereby improving the diversity of the ball head 4 adjustment.

[0045] Embodiment 2

[0046] The embodiment provides a multi-point indexing locking ball head assembly, which has the following technical features in addition to the technical solutions of the above embodiments.

[0047] The plurality of protrusions 6 are formed by stamping the positioning piece 5, and the second grooves 8 are formed on the side away from the protrusions 6.

[0048] Specifically, the thickness of the positioning piece 5 can be 3 mm, and the depth of the second groove 8 and the protrusion length of the protrusion 6 can both be 1 mm, that is, the depth of the second groove 8 and the protrusion length of the protrusion 6 are controlled to be about 1 / 3 of the thickness of the positioning piece 5.

[0049] It can be seen from the embodiment that the plurality of protrusions 6 are formed by stamping, which not only ensures the position accuracy of the plurality of circumferentially equidistantly arranged protrusions 6, but also has simple process, convenient operation, high production efficiency and low cost.

[0050] Controlling the depth of the second groove 8 and the protrusion length of the protrusion 6 to be about 1 / 3 of the thickness of the positioning piece 5 can ensure the structural strength at this position and avoid affecting the connection strength between the protrusion 6 and the positioning piece 5.

[0051] Embodiment 3

[0052] The embodiment provides a multi-point indexing locking ball head assembly, which has the following technical features in addition to the technical solutions of the above embodiments.

[0053] The radial cross sections of the protrusions 6, the first grooves 7 and the second grooves 8 are circular.

[0054] In addition to being circular, shapes such as triangles and rectangles can also be used, but it should be noted that if a non-circular shape is used, the protrusions 6, the first grooves 7 and the second grooves 8 are arranged along the circumference with the same side facing the axis of the circumferential arrangement, so that the protrusions 6 can still be adapted to the first grooves 7 after the angle adjustment of the ball head 4.

[0055] It can be seen from the embodiment that, by adopting a circular shape for the radial sections of the protrusion 6, the first groove 7 and the second groove 8, the convenience of processing and forming of the protrusion 6, the first groove 7 and the second groove 8 is further improved, and the shape of the circular shape in each direction is the same, so that the protrusion 6 and the first groove 7 can be matched after the angle adjustment of the ball head 4, and therefore, compared with a non-circular shape, the precision requirement is relatively low during the processing and forming of the protrusion 6, the first groove 7 and the second groove 8, and therefore the processing efficiency can be further improved.

[0056] Embodiment 4:

[0057] The embodiment provides a multi-point indexing locking ball head assembly, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features:

[0058] The protrusion 6, the first groove 7 and the second groove 8 are provided with at least two in the circumferential direction;

[0059] Among them, the application preferably adopts twelve.

[0060] It can be seen from the embodiment that, by adopting the setting of the protrusion 6, the first groove 7 and the second groove 8, and at least two, the number can be reasonably set according to the precision of the angle adjustment of the ball head 4, that is, the higher the required precision, the more the number set.

[0061] Embodiment 5:

[0062] The embodiment provides a multi-point indexing locking ball head assembly, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features, the ball head 4 comprises:

[0063] The ball shell 40 is provided with a ball head pin 41 on one side and an eccentric shaft 42 on the other side;

[0064] Among them, the first groove 7 is opened on the surface of the ball shell 40 located on the side of the eccentric shaft 42;

[0065] At the same time, the ball shell 40 and the eccentric shaft 42 adopt an integral structure.

[0066] It can be seen from the embodiment that, by opening the first groove 7 on the surface of the ball shell 40 located on the side of the eccentric shaft 42, the cooperation with the positioning piece 5 can be facilitated, and the ball shell 40 and the eccentric shaft 42 adopt an integral structure, which can ensure the position precision of the eccentric shaft 42 relative to the ball head 4, and further ensure the angle adjustment precision of the ball head 4.

[0067] Embodiment 6:

[0068] The embodiment provides a multi-point indexing locking ball head assembly, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features:

[0069] The positioning sheet 5 is provided with a mounting hole 9 at the axis around which the plurality of protrusions 6 are arranged, which is adapted to the eccentric shaft 42.

[0070] It can be seen from the embodiment that by providing the mounting hole 9 at the axis around which the plurality of protrusions 6 are arranged on the positioning sheet 5, which is adapted to the eccentric shaft 42, the plurality of protrusions 6 can continue to be matched and clamped with the plurality of grooves after the ball head 4 is adjusted to rotate around the eccentric shaft 42, so that the adjustment accuracy and stability after adjustment are effectively ensured.

[0071] Embodiment 7:

[0072] The embodiment provides a ball head assembly with multi-point indexing locking, in addition to the technical solutions of the above embodiments, further has the following technical features, the ball head 4 further comprises:

[0073] A ball seat 43 is installed between the ball head pin 41 and the ball shell 40;

[0074] A dust cover 44 is sleeved on the ball shell 40 and wraps the ball seat 43 and the end of the ball head pin 41 located in the ball shell 40.

[0075] It can be seen from the embodiment that the ball seat 43 improves the installation stability of the ball head pin 41 in the ball shell 40, and the dust cover 44 can avoid dust intrusion, effectively ensure the rotation of the ball head pin 41, and avoid increasing the wear of the ball head pin 41 when rotating.

[0076] Embodiment 8:

[0077] The embodiment provides a ball head assembly with multi-point indexing locking, in addition to the technical solutions of the above embodiments, further has the following technical features:

[0078] A strip-shaped hole 30 is provided in the adjusting groove 3, and the eccentric shaft 42 is provided with a nut 10 for locking and unlocking after sequentially penetrating the mounting hole 9 and the strip-shaped hole 30;

[0079] The surface of the eccentric shaft 42 is provided with external threads matched with the nut 10.

[0080] It can be seen from the embodiment that the strip-shaped hole 30 is provided in the adjusting groove 3, so that the positioning sheet 5 can be linearly adjusted in the adjusting groove 3, and then the eccentric shaft 42 can also be linearly adjusted, and the connection between the eccentric shaft 42 (i.e. the ball head 4) and the positioning sheet 5 and the swing arm 1 is convenient through the threaded connection between the nut 10 and the eccentric shaft 42.

[0081] At the same time, after the nut 10 is unlocked, the protrusion 6 and the first groove 7 can be separated, and then the first groove 7 with a position different from the original one is re-adapted with the protrusion 6 after the ball head 4 is rotated, and then the nut 10 is locked, so that the angle adjustment of the ball head 4 is convenient.

[0082] The embodiments of the present application are described above with reference to the accompanying drawings, and the embodiments and features in the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection of the present application.

Claims

1. A ball joint assembly with multi-point indexing locking, characterized in that, include: The swing arm (1) includes a ball head mounting end (2), and an adjustment groove (3) is provided on the ball head mounting end (2); The ball head (4) is installed at the ball head mounting end (2) located in the adjustment groove (3); The positioning piece (5) is slidably installed in the adjustment groove (3), and multiple protrusions (6) are provided at equal intervals on the circumference of the side near the ball head (4); The ball head (4) has multiple first grooves (7) that are adapted to the protrusions (6).

2. The ball joint assembly with multi-point indexing locking according to claim 1, characterized in that: The plurality of protrusions (6) are formed by stamping the positioning piece (5), and a second groove (8) is formed on the side away from the protrusions (6).

3. The ball joint assembly with multi-point indexing locking according to claim 2, characterized in that: The radial cross-sections of the protrusion (6), the first groove (7), and the second groove (8) are all circular.

4. The ball joint assembly with multi-point indexing locking according to claim 2, characterized in that: At least two of the protrusion (6), the first groove (7), and the second groove (8) are provided along the circumferential direction.

5. The ball joint assembly with multi-point indexing locking according to claim 1, characterized in that, The ball head (4) includes: A spherical shell (40) is fitted with a ball head pin (41) on one side and an eccentric shaft (42) on the other side; The first groove (7) is formed on the surface of the spherical shell (40) located on one side of the eccentric shaft (42).

6. The ball joint assembly with multi-point indexing locking according to claim 5, characterized in that: The positioning piece (5) has a mounting hole (9) adapted to the eccentric shaft (42) at the center of the axis around which multiple protrusions (6) surround.

7. The ball joint assembly with multi-point indexing locking according to claim 5, characterized in that, The ball head (4) also includes: A ball seat (43) is installed between the ball head pin (41) and the ball shell (40); A dust cover (44) is fitted onto the spherical shell (40) and wraps around the end of the ball seat (43) and the ball head pin (41) located inside the spherical shell (40).

8. The ball joint assembly with multi-point indexing locking according to claim 5, characterized in that: The adjustment groove (3) has a strip hole (30), and the eccentric shaft (42) passes through the mounting hole (9) and the strip hole (30) in sequence and is then fitted with a nut (10) for locking and unlocking.

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