Novel high-precision steering knuckle lathe fixture
By designing the lathe connecting plate and the inclined tie rod, and combining the D-type shaft and chuck clamping body, the positioning accuracy and stability problems of traditional steering knuckle fixtures on ADI materials are solved, and high-precision steering knuckle machining is achieved.
Patent Information
- Application Number
- CN202423117063.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Traditional steering knuckle clamps are unable to meet the high-precision machining requirements of ADI materials, resulting in insufficient positioning accuracy and clamping stability, which affects product quality and production efficiency.
It adopts a lathe connecting plate and inclined tie column design, combined with D-type shaft and chuck clamping body, to achieve radial and axial clamping, improve centering accuracy and prevent slight rotation during clamping.
This improves the positioning accuracy and clamping stability of steering knuckle machining, ensuring product quality and production efficiency.
Smart Images
Figure CN223616797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a novel high-precision steering knuckle lathe fixture. Background Technology
[0002] The steering knuckle is a crucial steering component in a car's steering axle, responsible for translating the driver's steering wheel movements into wheel motion. Its machining precision directly affects steering performance, including vehicle handling stability, steering responsiveness, and driving safety. High-precision steering knuckles reduce play, ensuring a quick and agile steering system, thus improving driving comfort and safety.
[0003] With the development and widespread application of Adductor Ductile Iron (ADI) material, ordinary steering knuckle fixtures can no longer meet the requirements of high-precision machining. Due to its excellent strength and toughness, ADI material is increasingly being used in automotive steering systems. However, traditional fixtures often struggle to guarantee sufficient positioning accuracy and clamping stability when machining this high-strength material, thus affecting product machining quality and production efficiency. Therefore, a new type of high-precision steering knuckle lathe fixture is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a new type of high-precision steering knuckle lathe fixture, which aims to improve the problem that the traditional steering knuckle fixture in the prior art can no longer meet the precision and stability requirements of high-intensity machining, thus affecting product quality and production efficiency.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A novel high-precision steering knuckle lathe fixture includes a lathe table, a tie rod slidably connected inside the lathe table, a connecting plate detachably connected to the outside of the tie rod, a fixing component for fixing the structural position in the device fixedly connected to the top of the lathe table, a chuck clamping body detachably connected to the top of the fixing component, the bottom of the chuck clamping body detachably connected to the outside of the tie rod, a support component for supporting the steering knuckle fixedly connected to the top of the chuck clamping body, a jaw detachably connected to the other end of the support component, a diagonal tie column rotatably connected to the outside of the jaw, and the outside of the diagonal tie column coupled to the outside of the connecting plate.
[0007] As a further description of the above technical solution:
[0008] The fixing component includes a contact block, the bottom of which contacts the top of the lathe table.
[0009] As a further description of the above technical solution:
[0010] The support assembly includes a support base, the bottom of which is fixedly connected to the top of the chuck clamp.
[0011] As a further description of the above technical solution:
[0012] The contact block has a cavity inside, and the outside of the connecting plate is in contact with the inner wall of the cavity.
[0013] As a further description of the above technical solution:
[0014] The top of the contact block is detachably connected to the bottom of the chuck clamp, and the pull rod is externally movably connected to the inner wall of the cavity.
[0015] As a further description of the above technical solution:
[0016] The top of the support base is detachably connected to a positioning plate, and the other end of the positioning plate is detachably connected to a gripper.
[0017] As a further description of the above technical solution:
[0018] The outside of the contact block is in contact with the outside of the tie rod, which is a D-shaped shaft.
[0019] As a further description of the above technical solution:
[0020] The connecting plate has a slot on its outside, and the tie rod has a slot on its outside, with the slot and the slot in contact with each other.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a lathe connecting plate is directly used to replace the original lathe chuck. The conical surface of the connecting plate is used to connect with the spindle head of the lathe, which greatly improves the centering accuracy of the fixture.
[0023] 2. In this utility model, traditional lathe chucks often cause the workpiece to float when clamping due to the gap between the jaw root and the chuck body. The existing fixture, through the design of the inclined tie column, can simultaneously exert radial and axial clamping forces when clamping the workpiece. The axial clamping force can firmly fix the workpiece on the fixture positioning surface, completely solving the problem of workpiece clamping deformation.
[0024] 3. In this utility model, the inclined tie column adopts a D-shaped shaft design instead of the traditional circular design, which can effectively prevent the slight rotation of the chuck during clamping and greatly improve the positioning accuracy of the fixture. Attached Figure Description
[0025] Figure 1This is a three-dimensional schematic diagram of a novel high-precision steering knuckle lathe fixture proposed in this utility model.
[0026] Legend:
[0027] 1. Tie rod; 2. Lathe table; 3. Connecting plate; 4. Diagonal tie rod; 5. Chuck clamp body; 6. Gripper; 7. Positioning plate; 8. Support base; 9. Contact block. Detailed Implementation
[0028] 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.
[0029] Reference Figure 1 This utility model provides an embodiment of a novel high-precision steering knuckle lathe fixture, comprising a lathe table 2, with a pull rod 1 slidably connected inside the lathe table 2, the lathe table 2 fixing the position of the pull rod 1. A connecting plate 3 is detachably connected to the outside of the pull rod 1. Pulling the pull rod 1 moves the connecting plate 3, fixing the position of the pull rod 1. A fixing component for fixing the structural position in the device is fixedly connected to the top of the lathe table 2. The fixing component includes a contact block 9, the bottom of which contacts the top of the lathe table 2, the lathe table 2 supporting and fixing the position of the contact block 9. A cavity is formed inside the contact block 9, and the outside of the connecting plate 3 contacts the inner wall of the cavity, the cavity fixing the position of the connecting plate 3.
[0030] The top of the contact block 9 is detachably connected to the bottom of the chuck clamping body 5, which supports and fixes the contact block 9 in position. The external part of the pull rod 1 is movably connected to the inner wall of the cavity, which provides space for the pull rod 1 to move. The outside of the contact block 9 contacts the outside of the inclined tie column 4, and the contact block 9 supports the inclined tie column 4, preventing it from becoming airborne during movement. The inclined tie column 4 is a D-shaped shaft, which effectively prevents slight rotation of the jaws during clamping, greatly improving the positioning accuracy of the fixture.
[0031] A chuck clamp body 5 is detachably connected to the top of the fixed assembly. The pull rod 1 is detachably connected to the bottom of the chuck clamp body 5, and the chuck clamp body 5 fixes one end of the pull rod 1 in a fixed position. A support assembly for supporting the steering knuckle is fixedly connected to the top of the chuck clamp body 5. The support assembly includes a support base 8, the bottom of which is fixedly connected to the top of the chuck clamp body 5, and the chuck clamp body 5 fixes the position of the support base 8. A positioning plate 7 is detachably connected to the top of the support base 8. The support base 8 and the positioning plate 7 are threaded together, and the detachable connection makes them easy to replace. The support base 8 provides support and fixes the position of the positioning plate 7. A jaw 6 is detachably connected to the other end of the positioning plate 7, and the positioning plate 7 fixes the position of the jaw 6.
[0032] The tie rod 4 is externally coupled to the outside of the connecting plate 3. Movement of the tie rod 4 causes movement of the connecting plate 3. The clamp 6 is rotatably connected to the tie rod 4. Movement of the tie rod 4 causes movement of the clamp 6, clamping the steering knuckle. The other end of the support assembly is detachably connected to the clamp 6, which fixes one end of the clamp 6 in a fixed position. The connecting plate 3 has a slot on its outside, and the tie rod 4 has a latch on its outside. The slot and latch contact each other, so that when the connecting plate 3 moves, the movement of the slot drives the movement of the latch, thereby moving the entire tie rod 4.
[0033] Working principle: In use, the steering knuckle to be clamped is simply fixed through the top notch of the positioning plate 7. Then, pull the pull rod 1. The movement of the pull rod 1 causes the external connecting plate 3 to move. The movement of the connecting plate 3 causes the external slot to move. The change of the slot causes the position of the contacting jaw to change. The change of the jaw position causes the diagonal tie rod 4 to move. The movement of the diagonal tie rod 4 causes the clamping jaw 6 to move towards the center, clamping the steering knuckle fixed in the center of the positioning plate 7. By slightly adjusting the pull rod 1 while maintaining the original clamping, more subtle clamping changes can be accommodated, greatly improving the centering accuracy of the fixture.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel high-precision steering knuckle lathe fixture, comprising a lathe table (2), characterized in that: The lathe table (2) is internally slidably connected to a tie rod (1), and the tie rod (1) is externally detachably connected to a connecting plate (3). The top of the lathe table (2) is fixedly connected to a fixing component for fixing the structural position in the device. The top of the fixing component is detachably connected to a chuck clamp body (5). The tie rod (1) is externally detachably connected to the bottom of the chuck clamp body (5). The top of the chuck clamp body (5) is fixedly connected to a support component for supporting the steering knuckle. The other end of the support component is detachably connected to a jaw (6). The jaw (6) is externally rotatably connected to a diagonal tie rod (4). The diagonal tie rod (4) is externally coupled to the outside of the connecting plate (3).
2. The novel high-precision steering knuckle lathe fixture according to claim 1, characterized in that: The fixing component includes a contact block (9), the bottom of which contacts the top of the lathe table (2).
3. The novel high-precision steering knuckle lathe fixture according to claim 1, characterized in that: The support assembly includes a support base (8), the bottom of which is fixedly connected to the top of the chuck clamp body (5).
4. A novel high-precision steering knuckle lathe fixture according to claim 2, characterized in that: The contact block (9) has a cavity inside, and the outside of the connecting plate (3) is in contact with the inner wall of the cavity.
5. A novel high-precision steering knuckle lathe fixture according to claim 4, characterized in that: The top of the contact block (9) is detachably connected to the bottom of the chuck clamp body (5), and the external part of the pull rod (1) is movably connected to the inner wall of the cavity.
6. A novel high-precision steering knuckle lathe fixture according to claim 3, characterized in that: The top of the support base (8) is detachably connected to a positioning plate (7), and the other end of the positioning plate (7) is detachably connected to a gripper (6).
7. A novel high-precision steering knuckle lathe fixture according to claim 2, characterized in that: The outside of the contact block (9) is in contact with the outside of the tie rod (4), which is a D-shaped shaft.
8. A novel high-precision steering knuckle lathe fixture according to claim 1, characterized in that: The connecting plate (3) has a slot on its outside, and the inclined tie column (4) has a slot on its outside, with the slot in contact with the slot.