Five-axis machining clamp for automobile steering knuckle

Abstract

The utility model discloses an automobile steering knuckle five-axis machining clamp, which relates to the field of clamps and comprises a base, a pull ring and a steering knuckle are arranged on the base, a middle fixing seat is fixedly mounted on the base, a middle supporting ring is fixedly mounted at the top end of the middle fixing seat, and the middle supporting ring is in contact with the steering knuckle. An air cylinder and a lining ring are fixedly mounted on the middle supporting ring, a mounting frame is rotationally mounted at the top end of the lining ring, a rotating clamp is rotationally mounted on the mounting frame, a driving disc is fixedly mounted at the output end of the middle supporting ring, and a connecting rod is rotationally mounted between the driving disc and the rotating clamp. Five sets of fixing mechanisms are arranged on the base, the steering knuckle is fixed from multiple directions, so that the steering knuckle is kept stable in the machining process, the machining precision is improved, meanwhile, the device is convenient and fast to install, compared with a traditional clamp, the installation and debugging time can be effectively shortened, and the yield of steering knuckle production is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a five-axis machining fixture for automotive steering knuckles. Background Technology

[0002] The steering knuckle, also known as the "steering knuckle," is one of the important components of the automotive steering axle. It enables the car to drive stably and transmits driving direction sensitively. The function of the steering knuckle is to transmit and bear the load of the front of the car, support and drive the front wheels to rotate around the kingpin to steer the car. When the car is in motion, it bears varying impact loads.

[0003] In existing technologies, traditional fixtures simultaneously clamp and process left and right steering knuckles, which is cumbersome. Moreover, horizontal machining is used, making clamping and adjustment difficult. A single operation takes ≥50 minutes, resulting in a low yield rate. The scrap rate due to vibration or positioning deviation reaches 5% to 10%, and the cost is high. Horizontal machining tools are expensive, and high-precision fixtures rely on imports and customization, with prices reaching millions or even tens of millions of yuan. Furthermore, maintenance is complex. Therefore, a five-axis machining fixture for automotive steering knuckles is needed to meet people's needs. Utility Model Content

[0004] The purpose of this utility model is to provide a five-axis machining fixture for automotive steering knuckles to solve the problems of long installation and debugging time, low yield rate and high cost mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a five-axis machining fixture for automotive steering knuckles, comprising a base, on which a pull ring and a steering knuckle are arranged, a central fixed seat is fixedly mounted on the base, a central support ring is fixedly mounted on the top of the central fixed seat, the central support ring is in contact with the steering knuckle, a cylinder and an inner liner ring are fixedly mounted on the central support ring, a mounting bracket is rotatably mounted on the top of the inner liner ring, a rotating clamp is rotatably mounted on the mounting bracket, a drive disc is fixedly mounted on the output end of the central support ring, and a connecting rod is rotatably mounted between the drive disc and the rotating clamp.

[0006] Preferably, a through-hole fixing rod is fixedly installed on the base, a side fixing rod is fixedly installed on the side of the through-hole fixing rod, and a support rod is fixedly installed on the base. The through-hole fixing rod, the side fixing rod, and the support rod are all in contact with the steering knuckle.

[0007] Preferably: a head fixing block is fixedly installed on the base, a head support rod is fixedly installed on the head fixing block, the head support rod is in contact with the steering knuckle, a head mounting bracket is fixed on the head fixing block, a head positioning clamp is rotatably installed on the top of the head mounting bracket, the head positioning clamp is in contact with the steering knuckle, a head cylinder is fixedly installed inside the head fixing block, and the output end of the head cylinder is adapted to the head positioning clamp.

[0008] Preferably, a side reinforcement plate is fixedly installed on the base, a side reinforcement rod is fixedly installed on the top of the side reinforcement plate, the side reinforcement rod contacts the steering knuckle, a side mounting bracket is fixedly installed on the top of the side reinforcement plate, a side positioning clamp is rotatably installed on the side mounting bracket, a positioning contact is fixedly installed on the side positioning clamp, the positioning contact contacts the steering knuckle, a side cylinder is fixedly installed on the side reinforcement plate, and the output end of the side cylinder is rotatably connected to the side mounting bracket.

[0009] Preferably, a second side reinforcement plate is fixedly installed on the base, and a bottom clamping contact is fixedly installed on the second side reinforcement plate. The bottom clamping contact contacts the steering knuckle. A lifting fixing frame is arranged on the second side reinforcement plate, and a clamping contact is fixedly installed on the lifting fixing frame. The clamping contact contacts the steering knuckle. Bolts are threaded between the second side reinforcement plate and the lifting fixing frame.

[0010] Preferably, the base is fixedly installed with a tail support rod one, a tail support rod two, and a tail side wall fixing bracket, all of which are in contact with the steering knuckle.

[0011] Preferably, a tail-end fixing bracket is fixedly installed on the base, a tail-end positioning rod is arranged on the tail-end fixing bracket, a tail-end clamping contact is fixedly installed on the tail-end positioning rod, the tail-end clamping contact contacts the steering knuckle, and a tail-end bolt is threaded between the tail-end fixing bracket and the tail-end positioning rod.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, five sets of fixing mechanisms are arranged on the base to fix the steering knuckle from multiple directions, thereby ensuring the stability of the steering knuckle during processing and improving processing accuracy. At the same time, this device is easy to install and can effectively reduce installation and debugging time compared with traditional fixtures, thereby improving the yield rate of steering knuckle production.

[0014] In this utility model, the five sets of fixing mechanisms on the base allow the same clamping body to process corresponding left and right steering knuckles by changing the left and right positions of the components, which greatly reduces the cost of the clamping. The vertical machining tool is also more efficient and cheaper than the horizontal one. At the same time, the processing is more intuitive and easier to check and control in the production process, which is lower than the traditional steering knuckle machining machine tool clamping. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a five-axis machining fixture for automotive steering knuckles proposed in this utility model;

[0016] Figure 2 This is a top view schematic diagram of a five-axis machining fixture for automotive steering knuckles proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of a five-axis machining fixture for automotive steering knuckles proposed in this utility model.

[0018] Figure 4 This is a top view schematic diagram of a five-axis machining fixture for automotive steering knuckles proposed in this utility model.

[0019] In the diagram: 100, base; 101, pull ring; 200, steering knuckle; 300, central fixing seat; 301, central support ring; 302, cylinder; 303, inner liner ring; 304, mounting bracket; 305, rotating clamp; 306, drive disc; 307, connecting rod; 400, through-hole fixing rod; 401, side fixing rod; 402, support rod; 403, head fixing block; 404, head support rod; 405, head mounting bracket; 406, head positioning clamp; 407, head cylinder; 500, side reinforcement. Plate 1; 501, Side Reinforcing Rod 1; 502, Side Mounting Bracket; 503, Side Positioning Clamp 1; 504, Positioning Contact 1; 505, Side Cylinder 1; 600, Side Reinforcing Plate 2; 601, Lifting Fixing Bracket; 602, Clamping Contact; 603, Bolt; 604, Bottom Clamping Contact; 700, Tail Support Rod 1; 701, Tail Support Rod 2; 702, Tail Side Wall Fixing Bracket; 703, Tail Fixing Bracket; 704, Tail Positioning Rod; 705, Tail Clamping Contact; 706, Tail Bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4A five-axis machining fixture for automotive steering knuckles includes a base 100, on which a pull ring 101 and a steering knuckle 200 are arranged. A central fixing seat 300 is fixedly mounted on the base 100, and a central support ring 301 is fixedly mounted on the top of the central fixing seat 300, contacting the steering knuckle 200. A cylinder 302 and an inner liner ring 303 are fixedly mounted on the central support ring 301, and a mounting bracket 304 is rotatably mounted on the top of the inner liner ring 303. A rotating clamp 305 is rotatably mounted on the upper part, and a drive disc 306 is fixedly mounted on the output end of the middle support ring 301. A connecting rod 307 is rotatably mounted between the drive disc 306 and the rotating clamp 305. Five sets of fixing mechanisms are arranged on the base to fix the steering knuckle from multiple directions, thereby ensuring that the steering knuckle remains stable during processing and improving processing accuracy. At the same time, this device is easy to install and can effectively reduce installation and debugging time compared with traditional fixtures, thereby improving the yield rate of steering knuckle production.

[0022] In an optional embodiment: a through-hole fixing rod 400 is fixedly installed on the base 100, a side fixing rod 401 is fixedly installed on the side of the through-hole fixing rod 400, and a support rod 402 is fixedly installed on the base 100. The through-hole fixing rod 400, the side fixing rod 401, and the support rod 402 are all in contact with the steering knuckle 200.

[0023] In an optional embodiment: a head fixing block 403 is fixedly installed on the base 100, a head support rod 404 is fixedly installed on the head fixing block 403, the head support rod 404 is in contact with the steering knuckle 200, a head mounting bracket 405 is fixed on the head fixing block 403, a head positioning clamp 406 is rotatably installed on the top of the head mounting bracket 405, the head positioning clamp 406 is in contact with the steering knuckle 200, a head cylinder 407 is fixedly installed inside the head fixing block 403, and the output end of the head cylinder 407 is adapted to the head positioning clamp 406.

[0024] It should be noted that the output end of the first cylinder 407 drives the first positioning clamp 406 to rotate on the first mounting bracket 405, thereby achieving the purpose of fixing the position of the steering knuckle 200.

[0025] In an optional embodiment: a side reinforcement plate 500 is fixedly installed on the base 100, a side reinforcement rod 501 is fixedly installed on the top of the side reinforcement plate 500, the side reinforcement rod 501 is in contact with the steering knuckle 200, a side mounting bracket 502 is fixedly installed on the top of the side reinforcement plate 500, a side positioning clamp 503 is rotatably installed on the side mounting bracket 502, a positioning contact 504 is fixedly installed on the side positioning clamp 503, the positioning contact 504 is in contact with the steering knuckle 200, a side cylinder 505 is fixedly installed on the side reinforcement plate 500, and the output end of the side cylinder 505 is rotatably connected to the side mounting bracket 502.

[0026] It should be noted that the output end of the side cylinder 505 drives the side positioning fixture 503 to rotate on the side mounting bracket 502. The side positioning fixture 503 drives the positioning contact 504 to cooperate with the side reinforcing rod 501 to press and fix the steering knuckle 200 in position.

[0027] In an optional embodiment: a second side reinforcement plate 600 is fixedly installed on the base 100, a bottom clamping contact 604 is fixedly installed on the second side reinforcement plate 600, the bottom clamping contact 604 contacts the steering knuckle 200, a lifting fixing frame 601 is arranged on the second side reinforcement plate 600, a clamping contact 602 is fixedly installed on the lifting fixing frame 601, the clamping contact 602 contacts the steering knuckle 200, and a bolt 603 is threaded between the second side reinforcement plate 600 and the lifting fixing frame 601.

[0028] It should be noted that the lifting and fixing frame 601 is moved by the bolt 603, so that the clamping contact 602 on the lifting and fixing frame 601 cooperates with the bottom clamping contact 604 to fix the steering knuckle 200 by pressing it.

[0029] In an optional embodiment: a tail support rod 1 700, a tail support rod 2 701, and a tail side wall fixing bracket 702 are fixedly installed on the base 100, and the tail support rod 1 700, the tail support rod 2 701, and the tail side wall fixing bracket 702 are all in contact with the steering knuckle 200.

[0030] It should be noted that rotating the tail bolt 706 at the end of the steering knuckle 200 controls the movement of the tail positioning rod 704, and the moving tail positioning rod 704 drives the tail clamping contact 705 to press and fix the steering knuckle 200.

[0031] In an optional embodiment: a tail mounting bracket 703 is fixedly installed on the base 100, a tail positioning rod 704 is arranged on the tail mounting bracket 703, a tail clamping contact 705 is fixedly installed on the tail positioning rod 704, the tail clamping contact 705 contacts the steering knuckle 200, and a tail bolt 706 is threaded between the tail mounting bracket 703 and the tail positioning rod 704.

[0032] Working principle of this utility model:

[0033] The installation of this device first initially fixes the front end of the steering knuckle 200 using the through-hole fixing rod 400. Simultaneously, the rear support rod 700, rear support rod 701, and rear side wall fixing bracket 702 are used to initially position the rear end of the steering knuckle 200. The side reinforcement rod 501 and bottom clamping contact 604, along with other components, provide initial support. At the middle of the steering knuckle 200, the middle support ring 301 on the middle fixing seat 300 supports the middle of the steering knuckle 200. The cylinder 302 is activated, and its end drives the drive disc 306 to move. The moving drive disc 306 drives the rotating clamp 305 to rotate on the mounting bracket 304 via the connecting rod 307. The rotating clamp 305 clamps the middle of the steering knuckle 200. The front cylinder 407 is then activated, and its output drives the front positioning clamp 406 to position the steering knuckle 200 at the front end. The mounting bracket 405 rotates to fix the position of the steering knuckle 200. The side cylinder 505 is activated, and its output drives the side positioning clamp 503 to rotate on the side mounting bracket 502. The side positioning clamp 503 drives the positioning contact 504 to cooperate with the side reinforcing rod 501 to press and fix the position of the steering knuckle 200. The bolt 603 is rotated, which drives the lifting fixing bracket 601 to move. The clamping contact 602 on the lifting fixing bracket 601 cooperates with the bottom clamping contact 604 to fix the steering knuckle 200 by pressing it. At the end of the steering knuckle 200, the tail bolt 706 is rotated. The tail bolt 706 controls the movement of the tail positioning rod 704. The moving tail positioning rod 704 drives the tail clamping contact 705 to press and fix the steering knuckle 200.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A five-axis machining fixture for automotive steering knuckles, comprising a base (100), characterized in that: A pull ring (101) and a steering knuckle (200) are arranged on the base (100). A central fixing seat (300) is fixedly installed on the base (100). A central support ring (301) is fixedly installed at the top of the central fixing seat (300). The central support ring (301) is in contact with the steering knuckle (200). A cylinder (302) and an inner liner ring (303) are fixedly installed on the central support ring (301). A mounting bracket (304) is rotatably installed at the top of the inner liner ring (303). A rotating clamp (305) is rotatably installed on the mounting bracket (304). A drive disc (306) is fixedly installed at the output end of the central support ring (301). A connecting rod (307) is rotatably installed between the drive disc (306) and the rotating clamp (305).

2. The five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: A through-hole fixing rod (400) is fixedly installed on the base (100), a side fixing rod (401) is fixedly installed on the side of the through-hole fixing rod (400), and a support rod (402) is fixedly installed on the base (100). The through-hole fixing rod (400), the side fixing rod (401), and the support rod (402) are all in contact with the steering knuckle (200).

3. The five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: A head fixing block (403) is fixedly installed on the base (100), and a head support rod (404) is fixedly installed on the head fixing block (403). The head support rod (404) is in contact with the steering knuckle (200). A head mounting bracket (405) is fixed on the head fixing block (403). A head positioning clamp (406) is rotatably installed on the top of the head mounting bracket (405). The head positioning clamp (406) is in contact with the steering knuckle (200). A head cylinder (407) is fixedly installed inside the head fixing block (403). The output end of the head cylinder (407) is adapted to the head positioning clamp (406).

4. The five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: A side reinforcement plate (500) is fixedly installed on the base (100). A side reinforcement rod (501) is fixedly installed on the top of the side reinforcement plate (500). The side reinforcement rod (501) is in contact with the steering knuckle (200). A side mounting bracket (502) is fixedly installed on the top of the side reinforcement plate (500). A side positioning clamp (503) is rotatably installed on the side mounting bracket (502). A positioning contact (504) is fixedly installed on the side positioning clamp (503). The positioning contact (504) is in contact with the steering knuckle (200). A side cylinder (505) is fixedly installed on the side reinforcement plate (500). The output end of the side cylinder (505) is rotatably connected to the side mounting bracket (502).

5. A five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: A second side reinforcement plate (600) is fixedly installed on the base (100). A bottom clamping contact (604) is fixedly installed on the second side reinforcement plate (600). The bottom clamping contact (604) contacts the steering knuckle (200). A lifting fixing frame (601) is arranged on the second side reinforcement plate (600). A clamping contact (602) is fixedly installed on the lifting fixing frame (601). The clamping contact (602) contacts the steering knuckle (200). A bolt (603) is threaded between the second side reinforcement plate (600) and the lifting fixing frame (601).

6. A five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: The base (100) is fixedly installed with a tail support rod 1 (700), a tail support rod 2 (701), and a tail side wall fixing bracket (702). The tail support rod 1 (700), tail support rod 2 (701), and tail side wall fixing bracket (702) are all in contact with the steering knuckle (200).

7. A five-axis machining fixture for automotive steering knuckles according to claim 1, characterized in that: A tail bracket (703) is fixedly installed on the base (100), a tail positioning rod (704) is arranged on the tail bracket (703), a tail clamping contact (705) is fixedly installed on the tail positioning rod (704), the tail clamping contact (705) is in contact with the steering knuckle (200), and a tail bolt (706) is threaded between the tail bracket (703) and the tail positioning rod (704).

Images