A self-centering quick-assembly tooling for machining the tapered hole of a steering arm.

Abstract

This utility model relates to the field of clamping fixture technology, specifically a self-centering quick-assembly fixture for machining tapered holes in a steering arm. It includes a support for support, and a limiting mechanism for positioning is provided inside the support. The limiting mechanism includes a support arm that penetrates and slides through the inner wall of the support. The front part of the support arm is connected to a cylindrical shell for mounting components. A circular plate is rotatably connected inside the cylindrical shell, and an arc-shaped groove is formed in the circular plate for driving a guide rod to slide. A guide rod for driving a pressure plate to move is slidably connected within the arc-shaped groove. A pressure plate for limiting the steering arm body is connected to the back of the guide rod, and the pressure plate penetrates and slides on the inner wall of the cylindrical shell. This is a self-centering quick-assembly fixture for machining tapered holes in a steering arm.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, specifically a self-centering quick-assembly tooling for machining the tapered hole of a steering arm. Background Technology

[0002] The steering arm, also called a trapezoidal arm, is the last stage of force transmission component in the steering transmission device. The steering knuckle arm is installed on the left and right steering knuckles, and the other end is connected by a ball pin and a tie rod. When machining the tapered hole of the steering arm, a self-centering quick-assembly tooling for machining the tapered hole of the steering arm is required for limiting. The existing self-centering quick-assembly tooling for machining the tapered hole of the steering arm still has certain defects in use, such as:

[0003] Existing self-centering quick-assembly tooling for machining tapered holes in steering arms typically uses screws and nuts to limit the steering arm workpiece, ensuring that the workpiece does not loosen, while simultaneously centering it, resulting in low clamping efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a self-centering quick-assembly tooling for machining the tapered hole of a steering arm, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-centering quick-assembly tooling for machining a steering arm tapered hole, including a support for support, wherein a limiting mechanism for limiting is provided inside the support;

[0006] The limiting mechanism includes a support arm that extends through and slides on the inner wall of the support. The front part of the support arm is connected to a column shell for installing components. A circular plate is rotatably connected inside the column shell. An arc-shaped groove for driving the guide rod to slide is opened in the circular plate.

[0007] A guide rod for moving the pressure plate is slidably connected inside the arc-shaped groove. A pressure plate for limiting the position of the steering arm body is connected to the back of the guide rod. The pressure plate passes through and is slidably connected to the inner wall of the column housing.

[0008] Preferably, a steering arm body is slidably connected to the outer side of the support arm and the column housing. The steering arm body abuts against the back of the pressure plate, and a support ring for support is abutted against the back of the steering arm body. The support ring is slidably connected to the outer side of the support arm and connected to the front of the support.

[0009] Preferably, an electric actuator for moving a connecting plate is embedded in the back of the support near the support arm, and the output end of the electric actuator is connected to a connecting plate for moving the support arm. The connecting plate is connected to the back of the support arm.

[0010] Preferably, the front part of the cylindrical shell is connected to a servo motor a for driving the circular plate to rotate via a motor mount, and the output end of the servo motor a passes through the inner wall of the cylindrical shell and is connected to the front part of the circular plate by screws.

[0011] Preferably, a positioning mechanism for positioning is provided above the steering arm body. The positioning mechanism includes a mounting seat connected to the inner wall of the support by bolts, and a guide rod is connected through the mounting seat.

[0012] Preferably, the end of the slide rod is connected to a baffle for preventing detachment, and a positioning seat is slidably connected to the slide rod, with a positioning stop for positioning connected to the bottom of the positioning seat.

[0013] Preferably, the back of the mounting base is connected to a servo motor b for driving the threaded rod to rotate via a motor mount. The output end of the servo motor b passes through the inner wall of the mounting base and is connected to a threaded rod for driving the positioning seat to move. The threaded rod is connected to the back of the baffle via a bearing and is threadedly connected inside the positioning seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Start the servo motor a to retract the pressure plate into the column housing, insert the steering arm body into the column housing and the support arm, then start the servo motor a to rotate in the opposite direction, so that the pressure plate extends out of the column housing, and then start the electric push rod to drive the pressure plate to tighten the steering arm body for quick clamping.

[0016] 2. By starting the servo motor b, the positioning stop is driven to abut against the steering arm body, so that the positioning seat and the position of the steering arm body that needs to be drilled are aligned and centered. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the support of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the positioning stop of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the support of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the support arm of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the cylindrical shell of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the arc-shaped groove of this utility model.

[0023] In the diagram: 1. Support; 2. Limiting mechanism; 201. Support arm; 202. Column housing; 203. Servo motor a; 204. Circular plate; 205. Arc groove; 206. Guide rod; 207. Pressure plate; 208. Support ring; 209. Electric actuator; 210. Connecting plate; 3. Steering arm body; 4. Positioning mechanism; 401. Mounting seat; 402. Slide rod; 403. Baffle; 404. Positioning seat; 405. Positioning stop; 406. Servo motor b; 407. Threaded rod. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a self-centering quick-assembly tooling for machining a steering arm tapered hole, including a support 1 for support, a limiting mechanism 2 for limiting inside the support 1, a steering arm body 3 on the limiting mechanism 2, and a positioning mechanism 4 for positioning above the steering arm body 3.

[0026] The positioning mechanism 4 includes a mounting base 401 bolted to the inner wall of the support 1, a guide rod 402 passing through the mounting base 401, a baffle 403 for preventing detachment connected to the end of the guide rod 402, and a positioning seat 404 slidably connected to the guide rod 402, and a positioning stop 405 for positioning connected to the bottom of the positioning seat 404.

[0027] The self-centering quick-assembly tooling for machining the taper hole of the steering arm has a sliding rod 402 that guides the positioning seat 404 to prevent the positioning seat 404 from being rotated by the threaded rod 407. The baffle 403 blocks the positioning seat 404 to prevent it from slipping off the baffle 403. The positioning seat 404 slides forward along the sliding rod 402 until the positioning stop 405 abuts against the limiting mechanism 2. At this time, the hole in the positioning seat 404 is aligned with the position where the steering arm body 3 needs to be drilled, and centering is performed. Then, the drill bit passes through the positioning seat 404 to drill the steering arm body 3.

[0028] exist Figure 1 and Figure 2In the middle, the back of the mounting base 401 is connected to a servo motor b406 for driving the threaded rod 407 to rotate via a motor mount. The output end of the servo motor b406 passes through the inner wall of the mounting base 401 and is connected to the threaded rod 407 for driving the positioning seat 404 to move. The threaded rod 407 is connected to the back of the baffle 403 via a bearing, and the threaded rod 407 is threadedly connected to the positioning seat 404.

[0029] The self-centering quick-assembly tooling for machining the taper hole of the steering arm is started by a servo controller to start the servo motor b406 to drive the threaded rod 407 to rotate on the back of the baffle 403. At this time, the threaded rod 407 rotates in the positioning seat 404, causing the positioning seat 404 to slide along the front of the slide rod 402.

[0030] exist Figure 1 , Figure 3 and Figure 4 In the middle, the limiting mechanism 2 includes a support arm 201 that runs through and slides on the inner wall of the support 1. The front part of the support arm 201 is connected to a column housing 202 for mounting components. The support arm 201 and the column housing 202 are both slidably connected in the steering arm body 3. The back of the steering arm body 3 abuts against a support ring 208 for support. The support ring 208 is slidably connected to the outside of the support arm 201 and is connected to the front part of the support 1.

[0031] An electric actuator 209 for moving the connecting plate 210 is embedded in the back of the support 1 near the support arm 201. The output end of the electric actuator 209 is connected to the connecting plate 210 for moving the support arm 201. The connecting plate 210 is connected to the back of the support arm 201.

[0032] The self-centering quick-assembly tooling for machining the tapered hole of the steering arm is curved and cannot fully abut against the support 1. The support ring 208 supports the suspended part between the steering arm body 3 and the support 1. The steering arm body 3 is inserted into the insert rod formed by the two sets of column housings 202 and the support arm 201 to limit the steering arm body 3. At this time, the steering arm body 3 can only slide back and forth.

[0033] The electric actuator 209 is activated to push the connecting plate 210 to pull the support arm 201 and the column housing 202 to move backward, which in turn drives the pressure plate 207 on the column housing 202 to pull the steering arm body 3 backward, pressing the steering arm body 3 against the support 1, limiting the support 1, and clamping it.

[0034] exist Figure 5 and Figure 6In the middle, the front part of the column housing 202 is connected to a servo motor a203 for driving the circular plate 204 to rotate via a motor mount. The output end of the servo motor a203 passes through the inner wall of the column housing 202 and is connected to the circular plate 204. The circular plate 204 is rotatably connected to the inner wall of the column housing 202. An arc-shaped groove 205 is opened in the circular plate 204 for driving the guide rod 206 to slide. The guide rod 206 for driving the pressure plate 207 to move is slidably connected in the arc-shaped groove 205. The back of the guide rod 206 is connected to the pressure plate 207 for limiting the steering arm body 3. The pressure plate 207 passes through and is slidably connected to the inner wall of the column housing 202, and the pressure plate 207 abuts against the front part of the steering arm body 3.

[0035] The self-centering quick-assembly tooling for machining the taper hole of the steering arm uses a servo controller to start the servo motor a203 to drive the circular plate 204 to rotate. The arc groove 205 inside the circular plate 204 rotates with the circular plate 204, which drives the guide rod 206 to push the pressure plate 207 to slide, and retract the pressure plate 207 into the column housing 202. This allows the steering arm body 3 to be inserted into the insert formed by the column housing 202 and the support arm 201. The circular plate 204 is started to rotate in the opposite direction, so that the pressure plate 207 extends out of the column housing 202, thereby preventing the steering arm body 3 from slipping off the column housing 202.

Claims

1. A self-centering quick-assembly tooling for machining the tapered hole of a steering arm, characterized in that: It includes a support (1) for support, and the support (1) is provided with a limiting mechanism (2) for limiting; The limiting mechanism (2) includes a support arm (201) that passes through and slides on the inner wall of the support (1). The front part of the support arm (201) is connected to a column shell (202) for installing components. A circular plate (204) is rotatably connected inside the column shell (202). An arc-shaped groove (205) for driving the guide rod (206) to slide is opened in the circular plate (204). A guide rod (206) for moving the pressure plate (207) is slidably connected in the arc groove (205). A pressure plate (207) for limiting the steering arm body (3) is connected to the back of the guide rod (206). The pressure plate (207) passes through and is slidably connected to the inner wall of the column shell (202).

2. The self-centering quick-mount tool for machining a taper hole of a knuckle according to claim 1, characterized in that: The outer side of the support arm (201) and the column housing (202) is slidably connected to the steering arm body (3), the steering arm body (3) abuts against the back of the pressure plate (207), and the back of the steering arm body (3) abuts against a support ring (208) for support, the support ring (208) is slidably connected to the outer side of the support arm (201), and the support ring (208) is connected to the front of the support (1).

3. The self-centering quick-mount tool for machining a taper hole of a knuckle according to claim 1, characterized in that: An electric actuator (209) for moving a connecting plate (210) is embedded on the back of the support (1) near the support arm (201). The output end of the electric actuator (209) is connected to the connecting plate (210) for moving the support arm (201). The connecting plate (210) is connected to the back of the support arm (201).

4. The self-centering quick-mount tool for machining a taper hole of a knuckle according to claim 1, characterized in that: The front part of the cylindrical shell (202) is connected to a servo motor a (203) for driving the circular plate (204) to rotate via a motor mount. The output end of the servo motor a (203) passes through the inner wall of the cylindrical shell (202) and is connected to the front part of the circular plate (204) by screws.

5. The self-centering quick-mount tool for machining a taper hole of a knuckle according to claim 1, characterized in that: A positioning mechanism (4) for positioning is provided above the steering arm body (3). The positioning mechanism (4) includes a mounting seat (401) connected to the inner wall of the support (1) by bolts. A guide rod (402) is connected through the mounting seat (401).

6. The self-centering quick-assembly tooling for machining a steering arm tapered hole according to claim 5, characterized in that: The end of the slide rod (402) is connected to a baffle (403) for preventing detachment, and a positioning seat (404) is slidably connected on the slide rod (402), and a positioning stop (405) for positioning is connected to the bottom of the positioning seat (404).

7. The self-centering quick-assembly tooling for machining a steering arm tapered hole according to claim 6, characterized in that: The back of the mounting base (401) is connected to a servo motor b (406) for rotating the threaded rod (407) via a motor mount. The output end of the servo motor b (406) passes through the inner wall of the mounting base (401) and is connected to the threaded rod (407) for moving the positioning seat (404). The threaded rod (407) is connected to the back of the baffle (403) via a bearing and is threaded into the positioning seat (404).

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