Steering knuckle positioning clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a steering knuckle positioning clamp which comprises a steering knuckle and further comprises a mounting seat, a positioning part and a clamping part, and the mounting seat is provided with the positioning part and the clamping part which are distributed on the two sides of the steering knuckle with a lower supporting arm of the steering knuckle as the axis. Wherein the clamping part comprises a pair of clamping blocks, a driving assembly is arranged on the mounting seat, and the driving end of the driving assembly is connected with the clamping blocks, so that the pair of clamping blocks are close to or far away from each other relative to a rocker arm of the steering knuckle; the positioning part is used for limiting a side support arm of the steering knuckle; a through hole is formed in the mounting seat, the through hole and the bearing hole are coaxially arranged, a step is arranged on the side, close to the steering knuckle, of the through hole, the bottom circle abuts against the bottom end of the step, and a magnetic attraction piece is arranged in the step. The steering knuckle can be effectively fixed, and the influence on the machining process of the steering knuckle can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a steering knuckle positioning clamp. Background Technology

[0002] The steering knuckle, also known as the "steering knuckle," is a crucial component of the automotive steering axle, enabling the vehicle to flexibly adjust its direction and stably steer. During the machining process of steering knuckles, due to their varying structural shapes, ensuring stable positioning is paramount. Current technology primarily utilizes positioning fixtures to fix the steering knuckle in place.

[0003] For example, in a steering knuckle fixture with patent number CN220807114U, a locating pin is used to penetrate the bearing hole to position and fix the steering knuckle. However, the machining of the steering knuckle can be divided into multiple processes. In the second process, a machining center is often used to bore and socket the bearing hole of the steering knuckle. In the existing technology, the locating pin is directly inserted into the bearing hole, which obviously affects the boring and socketing process of the bearing hole of the steering knuckle, thus having certain limitations. Therefore, there is an urgent need for a steering knuckle positioning fixture to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a steering knuckle positioning fixture to solve the problems existing in the prior art, which can effectively fix the steering knuckle and avoid affecting the steering knuckle processing technology.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a steering knuckle positioning fixture for machining steering knuckles, comprising:

[0006] The mounting base is provided with a positioning part and a clamping part, and the positioning part and the clamping part are distributed on both sides of the steering knuckle with the lower support arm of the steering knuckle as the axis.

[0007] The clamping part includes a pair of clamping blocks, and a driving assembly is provided on the mounting base. The driving end of the driving assembly is connected to the clamping blocks so that the pair of clamping blocks move closer or further away from each other relative to the rocker arm of the steering knuckle.

[0008] The positioning part is used to limit the side arm of the steering knuckle;

[0009] The mounting base has a through hole, which is coaxially arranged with the bearing hole. A step is provided on the side of the through hole near the steering knuckle, and the bottom circle abuts against the bottom end of the step. A magnetic attraction element is provided inside the step.

[0010] Preferably, the magnetic attractor includes an electromagnet, which is fixedly connected within the step to fix the bottom circle. A magnetic switch is installed on the mounting base, and the magnetic switch is energized and connected to the electromagnet.

[0011] Preferably, the electromagnet has a ring structure, and the inner ring of the electromagnet defines a magnetic attraction section, the diameter of which corresponds to and matches the outer diameter of the bottom circle.

[0012] Preferably, the driving component includes:

[0013] A pair of drive seats are slidably connected in a groove opened in the mounting seat. The clamping blocks correspond one-to-one with the drive seats, and a rotating shaft is rotatably connected to the top surface of the drive seats. The clamping blocks are fixed to the rotating shaft on the side near the rocker arm.

[0014] A stepper motor is fixedly connected to one side of the mounting base. The output shaft of the stepper motor is fixedly connected to a screw rod. The screw rod is axially connected to the slide groove. A pair of drive seats are threadedly sleeved on the screw rod along a centrally symmetrical thread.

[0015] Preferably, a pad is fixed to the side of the clamping block near the rocker arm.

[0016] Preferably, the drive seat is a liftable structure.

[0017] Preferably, the positioning part includes at least one pair of positioning rods, the positioning rods are fixed to the top surface of the mounting base, a positioning interval is defined between the pair of positioning rods, at least one side support arm is located within the positioning interval, and the two sides of the side support arm respectively abut against the pair of positioning rods.

[0018] The present invention discloses the following technical effects:

[0019] This invention fixes both sides of the steering knuckle by setting positioning parts and clamping parts on both sides of the lower support arm. The pair of clamping blocks of the clamping part can move closer or further apart under the driving action of the drive assembly, thereby clamping and fixing the rocker arm. Combined with the positioning part limiting the side support arm, the steering knuckle is effectively clamped. In addition, the mounting base is provided with a through hole, which is coaxially arranged with the bearing hole. The bottom circle can be fixed in the through hole by a magnetic attraction component. This not only meets the requirements of boring and sleeve hole in the bearing hole in the traditional two-stage machining process, but also improves the fixing strength between the steering knuckle and the mounting base, and enhances the positioning and fixing effect of the steering knuckle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a diagram showing the positional relationship between the steering knuckle and the mounting base in this utility model;

[0022] Figure 2 This is a diagram showing the positional relationship between the clamping part and the positioning part and the lower support arm in this utility model;

[0023] Figure 3 This is a diagram showing the connection relationship between the through hole and the step in this utility model;

[0024] Among them, 1. Steering knuckle; 101. Bottom circle; 102. Lower support arm; 103. Rocker arm; 104. Side support arm; 2. Mounting base; 3. Through hole; 301. Step; 4. Clamping block; 5. Positioning rod; 6. Electromagnet; 7. Magnetic switch; 8. Drive base; 9. Rotating shaft; 10. Stepper motor; 11. Screw; 12. Pad layer; 13. Axial telescopic mechanism. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-3 This utility model provides a steering knuckle positioning clamp, including a steering knuckle 1, and further comprising:

[0028] Mounting base 2 is provided with a positioning part and a clamping part, and the positioning part and the clamping part are distributed on both sides of the steering knuckle 1 with the lower support arm 102 of the steering knuckle 1 as the axis.

[0029] The clamping part includes a pair of clamping blocks 4. A drive assembly is provided on the mounting base 2. The drive end of the drive assembly is connected to the clamping blocks 4 so that the pair of clamping blocks 4 move closer or further away from each other relative to the rocker arm 103 of the steering knuckle 1.

[0030] The positioning part is used to limit the side arm 104 of the steering knuckle 1.

[0031] The mounting base 2 has a through hole 3, and the bottom circle 101 of the adapter is fixed in the through hole 3.

[0032] A step 301 is provided on the side of the through hole 3 near the steering knuckle 1. The bottom circle 101 abuts against the bottom end of the step 301. A magnetic attractor is provided inside the step 301. The steering knuckle 1 is magnetically attracted and fixed by the magnetic attractor, thereby fixing the bottom circle 101 inside the step 301.

[0033] This utility model fixes both sides of the steering knuckle 1 by setting positioning parts and clamping parts on both sides of the lower support arm 102. The pair of clamping blocks 4 of the clamping part can move closer or further apart under the driving action of the drive component, thereby clamping and fixing the rocker arm 103. Combined with the positioning part limiting the side support arm 104, the steering knuckle 1 is effectively clamped. In addition, the mounting base 2 is also provided with a through hole 3, which is coaxially arranged with the bearing hole. The bottom circle 101 can be fixed in the through hole 3 by a magnetic suction component. This not only meets the step of boring and sleeve hole in the bearing hole in the traditional two-stage machining process, but also improves the fixing strength between the steering knuckle 1 and the mounting base 2, and enhances the positioning and fixing effect of the steering knuckle 1.

[0034] Understandably, the diameter of the through hole 3 is preferably, but not limited to, the same as the diameter of the bearing hole, so that the bottom circle 101 can contact the structure of the mounting base 2, and the workpiece being machined can be inserted into the bearing hole for boring the bushing.

[0035] Furthermore, the magnetic attraction component includes an electromagnet 6, which is fixedly connected within the step 301 to fix the bottom circle 101. A magnetic switch 7 is installed on the mounting base 2, and the magnetic switch 7 is energized and connected to the electromagnet 6.

[0036] Furthermore, the electromagnet 6 has a ring structure, and the inner ring of the electromagnet 6 defines a magnetic attraction section, the diameter of which corresponds to and matches the outer diameter of the bottom circle 101.

[0037] By utilizing the magnetic attraction range defined by the center of the annular electromagnet 6, and by ensuring that the inner circle of the electromagnet 6 is not smaller than the outer diameter of the bottom circle 101, the bottom circle 101 can be secured to the step 301 when the electromagnet 6 is attracted and fixed, thereby fixing it to the mounting base 2.

[0038] In one embodiment of this utility model, the width of the step 301 is adjusted by combining the thickness of the bottom circle 101 and the thickness of the electromagnet 6, so that the through hole 3 can correspond and match the bearing hole. Correspondingly, the width of the step 301 is equal to the sum of the thickness of the bottom circle 101 and the thickness of the electromagnet 6.

[0039] Furthermore, the driving components include:

[0040] A pair of drive seats 8 are slidably connected in the grooves opened in the mounting seat 2. The clamping blocks 4 correspond one-to-one with the drive seats 8, and the top surface of the drive seats 8 is connected to the rotating shaft 9. The clamping blocks 4 are fixed to the side of the rotating shaft 9 near the rocker arm 103.

[0041] A pair of stepper motors 10 are fixedly connected to both sides of the inner wall of the slide groove. The output shaft of the stepper motor 10 is fixedly connected to a screw 11. The screw 11 is rotatably connected to the slide groove along the axial direction of the slide groove. The screw 11 is threadedly connected to the adjacent drive seat 8.

[0042] The stepper motor 10 rotates the screw 11, which in turn controls the drive seat 8 to slide along the slide groove. Through the cooperation of a pair of stepper motors 10 and a pair of drive seats 8, a pair of clamping blocks 4 are driven to move closer to each other, thereby clamping and fixing the rocker arm 103. Since the rocker arm 103 of the steering knuckle 1 has an irregular structure, by driving the pair of clamping blocks 4 separately, the corresponding stepper motor 10 can be stopped when the clamping blocks 4 are effectively in contact with the side wall of the rocker arm 103, thus ensuring the clamping and fixing effect of the pair of clamping blocks 4 on the rocker arm 103.

[0043] Furthermore, a pad 12 is fixed to the side of the clamping block 4 near the rocker arm 103.

[0044] In this technical solution, the clamping block 4 has a circular structure. Similarly, the pad 12 is an annular metal layer covering the outer periphery of the clamping block 4. The clamping block 4 is moved along the direction of the rocker arm 103 by the drive seat 8, so that the pad 12 can abut against the side wall of the rocker arm 103, thereby fixing the rocker arm 103.

[0045] Furthermore, the drive seat 8 is a height-adjustable structure.

[0046] Specifically manifested in Figure 2 In the example, an axial telescopic mechanism 13, such as a hydraulic cylinder, pneumatic cylinder, or electric telescopic rod, is preferably fixed on the top surface of the drive seat 8. A rotating shaft 9 is connected to the piston end of the axial telescopic mechanism 13, and the clamping block 4 is fixed to the side wall of the rotating shaft 9. This enables the clamping block 4 to be lifted and lowered, thereby satisfying the function of clamping and fixing the rocker arm 103.

[0047] Furthermore, the positioning part includes at least a pair of positioning rods 5, which are fixed to the top surface of the mounting base 2. A positioning range is defined between the pair of positioning rods 5, and at least one side support arm 104 is located within the positioning range, with both sides of the side support arm 104 abutting against the pair of positioning rods 5 respectively.

[0048] For the structure of the processed steering knuckle 1, a positioning rod 5 is fixed on the mounting base 2. By using a pair of positioning rods 5 in conjunction with the structure of the limiting side support arm 104, combined with the clamping of the rocker arm 103 by the clamping block 4, and the fixing of the bottom circle 101 by the mounting base 2, the steering knuckle 1 is effectively fixed.

[0049] The working principle of the steering knuckle 1 positioning clamp of this utility model is as follows:

[0050] The bottom circle 101 of the steering knuckle 1 is inserted into the inner ring of the electromagnet 6, and the side support arm 104 of the steering knuckle 1 is inserted into the positioning interval corresponding to the positioning interval. The electromagnet 6 is energized to fix the steering knuckle 1. Then the stepper motor 10 is started, and the stepper motor 10 drives a pair of drive seats 8 to move the clamping blocks 4 in opposite directions, so that the pair of clamping blocks 4 can abut against the side wall of the irregularly shaped rocker arm 103 structure to achieve clamping and fixing of the steering knuckle 1.

[0051] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A steering knuckle positioning fixture for machining a steering knuckle (1), characterized in that, Also includes: The mounting base (2) is provided with a positioning part and a clamping part, and the positioning part and the clamping part are respectively provided on both sides of the lower support arm (102) of the steering knuckle (1); The clamping part includes a pair of clamping blocks (4), and a driving component is provided on the mounting base (2). The driving end of the driving component is connected to the clamping blocks (4) so ​​that the pair of clamping blocks (4) move closer to or further away from each other relative to the rocker arm (103) of the steering knuckle (1). The positioning part is used to limit the side arm (104) of the steering knuckle (1); The mounting base (2) has a through hole (3) and the through hole (3) is coaxially arranged with the bearing hole of the steering knuckle (1). A step (301) is provided on the side of the through hole (3) near the steering knuckle (1). The bottom circle (101) abuts against the bottom end of the step (301). A magnetic suction element is provided in the step (301).

2. The steering knuckle positioning fixture according to claim 1, characterized in that: The magnetic attractor includes an electromagnet (6), which is fixed in the step (301) to fix the bottom circle (101). A magnetic attractor switch (7) is installed on the mounting base (2), and the magnetic attractor switch (7) is energized and connected to the electromagnet (6).

3. The steering knuckle positioning fixture according to claim 2, characterized in that: The electromagnet (6) has a ring structure, and the inner ring of the electromagnet (6) defines a magnetic attraction section. The diameter of the magnetic attraction section corresponds to and matches the outer diameter of the bottom circle (101).

4. The steering knuckle positioning fixture according to claim 1, characterized in that, The driving component includes: A pair of drive seats (8) are slidably connected to the grooves opened in the mounting seat (2). The clamping block (4) corresponds to the drive seat (8) one by one, and the top surface of the drive seat (8) is connected to a rotating shaft (9). The clamping block (4) is fixed to the rotating shaft (9) on the side near the rocker arm (103). A pair of stepper motors (10) are fixedly connected to the inner wall of the slide groove on both sides. The output shaft of the stepper motor (10) is fixedly connected to a screw (11). The screw (11) is rotatably connected to the slide groove along the axial direction of the slide groove. The screw (11) is threadedly connected to the adjacent drive seat (8).

5. The steering knuckle positioning fixture according to claim 1, characterized in that: The clamping block (4) has a pad (12) fixed to the side near the rocker arm (103).

6. The steering knuckle positioning fixture according to claim 4, characterized in that: The drive seat (8) is a liftable structure.

7. The steering knuckle positioning fixture according to claim 1, characterized in that: The positioning part includes at least one pair of positioning rods (5), the positioning rods (5) are fixed to the top surface of the mounting base (2), a positioning range is defined between the pair of positioning rods (5), at least one side arm (104) is located within the positioning range, and the two sides of the side arm (104) abut against the pair of positioning rods (5) respectively.

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