A rotary tool for machining of an automobile steering knuckle
Patent Information
- Application Number
- CN202522480365.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-24
AI Technical Summary
[0003]然而,这类现有技术在实际应用中存在诸多不足:首先,在汽车转向节喷涂过程中,传统工装难以实现工件全方位旋转,导致喷涂覆盖不全面,存在死角,影响喷涂质量和效率;其次,现有工装中挂钩通常为固定式结构,更换、维护或调整困难,影响生产效率,也不便于适应不同型号的转向节加工需求
本实用新型通过行程齿条与齿口之间的啮合传动,将齿条的直线运动转换为圆环块的旋转运动,带动挂钩及悬挂的汽车转向节平稳旋转,从而实现对汽车转向节进行全面喷涂处理。
Smart Images

Figure CN224823061U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive steering knuckle processing technology, and in particular relates to a rotary tooling for automotive steering knuckle processing. Background Technology
[0002] As a key component of the automotive suspension system, the steering knuckle's structure and performance directly affect the vehicle's handling and safety. During the manufacturing process of the steering knuckle, its surface is usually coated to improve its corrosion resistance and aesthetics. To achieve uniform and efficient coating, a rotating fixture is often used in production to suspend the steering knuckle and drive it to rotate, so that the coating equipment can cover all surfaces of the workpiece.
[0003] However, these existing technologies have several shortcomings in practical applications: First, in the process of painting automotive steering knuckles, traditional tooling makes it difficult to achieve omnidirectional rotation of the workpiece, resulting in incomplete coating coverage, dead zones, and affecting coating quality and efficiency; second, the hooks in existing tooling are usually fixed structures, making replacement, maintenance, or adjustment difficult, affecting production efficiency, and also unsuitable for adapting to the processing requirements of different steering knuckle models. Therefore, we provide a rotating tooling for automotive steering knuckle processing to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a rotary tooling for processing automotive steering knuckles. Through the meshing transmission between the travel rack and the toothed gear, the automotive steering knuckles can be fully sprayed. At the same time, the plug-in structure of the pin, sleeve, and assembly rod enables the quick installation and removal of the hook, which facilitates the replacement or maintenance of the hook and improves the applicability and flexibility of the equipment.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a rotary tooling for machining automotive steering knuckles, comprising an annular frame; an annular block is provided inside the annular frame, and a toothed opening is provided on the lower part of the surface of the annular block; a travel rack that meshes with the toothed opening is slidably provided inside the annular frame; a hook is provided below the annular frame, which is aligned with the vertical position of the annular block; a sleeve that communicates with the interior of the annular frame is fixed to the upper surface of the outer side of the annular frame; an assembly rod that is inserted into the sleeve is fixed through the upper surface of the annular block through the hook; a positioning hole is provided through the surface wall of the assembly rod; an insertion hole is provided through the surface wall of the sleeve; and a pin that passes through the insertion hole and the positioning hole is provided above the annular frame.
[0006] The present invention is further provided that an L-shaped locking plate is fixed to the upper part of the outer side of the annular frame on both sides of the sleeve.
[0007] The present invention is further configured such that a travel opening is provided through the upper end of the annular frame at the position corresponding to the travel rack, and a linkage bar is fixed in the middle of the upper end of the travel rack, which slides through the inside of the travel opening.
[0008] The present invention is further configured such that a cylinder is installed at the upper end of the outer side of the annular frame, and the piston end of the cylinder is bolted to the end face of the linkage bar.
[0009] The present invention is further configured such that both ends of the annular frame are open, and the two ends of the travel rack are respectively located at the two open ends of the annular frame.
[0010] The present invention is further configured such that the lower end of the ring block has a plurality of spherical openings evenly arranged in a ring along the inner side of the ring block, and each spherical opening has a spherical block embedded inside it.
[0011] The present invention is further configured such that multiple positioning holes are evenly distributed in a ring around the hook on the surface of the ring block, and multiple sets of positioning strips are fixed on the inner side of the ring block, which are respectively fitted with the positioning holes.
[0012] This utility model has the following beneficial effects: This invention utilizes the meshing transmission between the rack and the toothed gear to convert the linear motion of the rack into the rotational motion of the ring block, thereby driving the hook and the suspended steering knuckle of the car to rotate smoothly, thus achieving a comprehensive spraying treatment of the car steering knuckle.
[0013] This utility model enables quick installation and disassembly of hooks through the insertion structure of pins, sleeves, and assembly rods, facilitating hook replacement or maintenance and improving equipment applicability and flexibility. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a structural assembly diagram of the hook, cylinder, ring block, and stroke rack in this utility model.
[0017] Figure 3 This is a structural diagram of the annular frame in this utility model.
[0018] Figure 4 This is a structural diagram of the hook in this utility model.
[0019] Figure 5 This is a structural diagram of the circular ring block in this utility model.
[0020] The attached diagram lists the components represented by each number as follows: 1- Annular frame, 101- Locking plate, 102- Sleeve, 103- Stroke port, 104- Insertion hole, 2- Hook, 201- Pin, 202- Positioning port, 203- Assembly rod, 204- Positioning hole, 3- Cylinder, 4- Circular block, 401- Positioning strip, 402- Ball mouth, 403- Toothed mouth, 404- Ball block, 5- Stroke rack, 501- Linkage strip. Detailed Implementation
[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 5 This utility model is a rotary tooling for processing automotive steering knuckles, including an annular frame 1. The annular frame 1 serves as the main support frame of the tooling, accommodating multiple structures and providing structural stability and installation foundation. An annular block 4 is provided inside the annular frame 1. A toothed opening 403 is provided on the lower part of the surface of the annular block 4. A travel rack 5 is slidably arranged inside the annular frame 1, meshing with the toothed opening 403. The toothed opening 403 on the lower part of the annular block 4 meshes with the travel rack 5, so that the movement of the travel rack 5 drives the rotation of the annular block 4, converting the linear motion of the travel rack 5 into the motion of the annular block 4. A hook 2 is provided below the annular frame 1, which is aligned with the vertical position of the annular block 4. The hook 2 is used to suspend the automotive steering knuckle. When the annular block 4 rotates, it drives the hook 2 to rotate synchronously, thereby driving the automotive steering knuckle to rotate and move, so as to fully spray paint the automotive steering knuckle.
[0023] A sleeve 102 that communicates with the inside of the annular frame 1 is fixed to the upper surface of the outer side of the annular frame 1. A mounting rod 203 that is inserted into the sleeve 102 is fixed to the upper surface of the annular block 4. A positioning hole 204 is opened through the surface wall of the mounting rod 203. An insertion hole 104 is opened through the surface wall of the sleeve 102. A pin 201 that passes through the insertion hole 104 and the positioning hole 204 is set above the annular frame 1. The insertion engagement between the pin 201 and the sleeve 102 realizes the detachable assembly between the mounting rod 203 and the sleeve 102, so as to facilitate the quick assembly and disassembly of the hook 2. The above structure is used by inserting the hook 2 into the ring block 4, thereby inserting the assembly rod 203 into the inside of the sleeve 102, and then inserting the pin 201 into the insertion hole 104 and the positioning hole 204, thereby installing the assembly rod 203 in the sleeve 102, thereby positioning the hook 2 and making the hook 2 stably assembled and connected with the ring frame 1.
[0024] Specifically, a stroke opening 103 is provided at the upper end of the annular frame 1 corresponding to the position of the stroke rack 5. A linkage bar 501 is fixed in the middle of the upper end of the stroke rack 5, which slides through the inside of the stroke opening 103. When the stroke rack 5 moves inside the annular frame 1, the annular frame 1 controls the linkage bar 501 to move along the path of the stroke opening 103. A cylinder 3 is installed at the upper end of the outer side of the annular frame 1. The cylinder 3 provides power to drive the stroke rack 5 to move. The reciprocating operation of the cylinder 3 can control the stroke rack 5 to move back and forth, thereby controlling the annular block 4 to rotate back and forth. The piston end of the cylinder 3 is bolted to the end face of the linkage bar 501. The two ends of the annular frame 1 are set in an open shape. The two ends of the stroke rack 5 are respectively set at the two open ends of the annular frame 1. The open design of the two ends of the annular frame 1 allows the stroke rack 5 to extend, which facilitates the movement transmission of the stroke rack 5.
[0025] Among them, according to Figure 5 It can be seen that the lower end of the ring block 4 has a plurality of ball openings 402 evenly arranged in a ring along the inner side of the ring block 4. Each ball opening 402 is embedded with a ball block 404. The cooperation between the ball opening 402 and the ball block 404 means that when the ring block 4 rotates, it will drive the ball block 404 to rotate in the ring frame 1, thereby reducing the friction between the ring block 4 and the inner wall of the ring frame 1.
[0026] Furthermore, according to Figure 4 and Figure 5 It can be seen that the hook 2 has multiple positioning holes 202 evenly distributed in a ring around the circumference of the ring block 4. The inner side of the ring block 4 is fixed with multiple sets of positioning strips 401 that are respectively in clearance fit with the positioning holes 202. The positioning strips 401 and the positioning holes 202 are in clearance fit, so the ring block 4 will guide the movement of the hook 2, prevent the hook 2 from rotating and shaking at will, and play a guiding and stabilizing role.
[0027] Furthermore, an L-shaped locking plate 101 is fixed to the upper outer end of the annular frame 1 on both sides of the sleeve 102. Installing the locking plate 101 on the spraying equipment can make the entire fixture stably positioned in the processing area of the spraying equipment.
[0028] The operation process of this embodiment is as follows: The entire rotating fixture is installed in the processing area of the spraying equipment, so that the position of the hook 2 corresponds to that of the nozzle. The car steering knuckle is suspended on the hook 2, and the car steering knuckle is ensured to be firm. Then the cylinder 3 is started, and the cylinder 3 pushes the linkage bar 501 to move linearly inside the stroke port 103. Thus, the linkage bar 501 drives the stroke rack 5 to move and controls the ring block 4 to rotate. Thus, the ring block 4 drives the hook 2 and the car steering knuckle to rotate in the processing area of the spraying equipment, thereby ensuring that the car steering knuckle is fully sprayed.
[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A rotary tooling for machining automotive steering knuckles, comprising an annular frame (1); characterized in that: The annular frame (1) is provided with an annular block (4) inside. The lower part of the surface of the annular block (4) is provided with a toothed opening (403). The annular frame (1) is provided with a travel rack (5) that meshes with the toothed opening (403) inside. The bottom of the annular frame (1) is provided with a hook (2) that is aligned with the upper and lower positions of the annular block (4). The upper surface of the annular frame (1) is fixed with a sleeve (102) that communicates with the inside of the annular frame (1). The hook (2) passes through the upper surface of the annular block (4) and is fixed with an assembly rod (203) that is inserted into the sleeve (102). The surface wall of the assembly rod (203) is provided with a positioning hole (204). The surface wall of the sleeve (102) is provided with an insertion hole (104). A pin (201) is provided above the annular frame (1) that passes through the insertion hole (104) and the positioning hole (204).
2. The rotary tooling for machining automotive steering knuckles according to claim 1, characterized in that, An L-shaped locking plate (101) is fixed to the upper part of the annular frame (1) on both sides of the sleeve (102).
3. A rotary tooling for machining automotive steering knuckles according to claim 1, characterized in that, The upper end of the annular frame (1) is provided with a stroke opening (103) at the position corresponding to the stroke rack (5), and a linkage bar (501) is fixed in the middle of the upper end of the stroke rack (5) and slides through the inside of the stroke opening (103).
4. A rotary tooling for machining automotive steering knuckles according to claim 3, characterized in that, A cylinder (3) is installed on the upper end of the outer side of the annular frame (1), and the piston end of the cylinder (3) is bolted to the end face of the linkage bar (501).
5. A rotary tooling for machining automotive steering knuckles according to claim 1, characterized in that, The two ends of the annular frame (1) are open, and the two ends of the travel rack (5) are respectively located at the two open ends of the annular frame (1).
6. A rotary tooling for machining automotive steering knuckles according to claim 1, characterized in that, The lower end of the ring block (4) is provided with a plurality of ball openings (402) arranged in a ring evenly along the inner side of the ring block (4), and each ball opening (402) is inlaid with a ball block (404).
7. A rotary tooling for machining automotive steering knuckles according to claim 1, characterized in that, The hook (2) has multiple positioning holes (202) evenly distributed in a ring around the hook (2) on the surface of the ring block (4). The inner side of the ring block (4) is fixed with multiple sets of positioning strips (401) that are respectively fitted with the positioning holes (202).