A front lower control arm bushing assembly retraction device

Abstract

This invention relates to a front lower control arm bushing assembly and retraction device, belonging to the field of bushing press-fit retraction fixture technology. The lower plate has a front bushing assembly mechanism and a base plate on its top, with the front bushing assembly mechanism and base plate facing each other. The lower plate also has a pressing mechanism and a support positioning block on its top, located on one side of the front bushing assembly mechanism and base plate. The top surface of the base plate has a rear bushing positioning mechanism and a front bushing retraction mechanism, with the rear bushing positioning mechanism and front bushing retraction mechanism facing each other. The top surface of the base plate also has guide posts and support rods. The guide posts are symmetrically arranged on both sides of the rear bushing positioning mechanism, with the top of the guide posts connected to the rear bushing press-fit plate. The support rod is located at a corner near the pressing mechanism. This device integrates the front and rear bushing assembly and the front bushing retraction into one unit, reducing manufacturing steps, improving production efficiency, and lowering manufacturing costs. During operation, simply place the parts and bushings onto the fixture and activate the electrical control switch to perform the press-fit.

Description

Technical Field

[0001] This invention relates to the field of bushing press-fitting and retraction tooling technology, and in particular to a front lower control arm bushing assembly and retraction device. Background Technology

[0002] The front lower control arm is a crucial load-bearing and guiding component in a car's chassis suspension. It directly bears the vertical loads of the front wheels, suspension, and body, making it one of the main load-bearing parts of the chassis. It restrains the vertical movement and longitudinal displacement of the wheels, ensuring they remain at the correct angle and preventing swerving or skidding. It transmits longitudinal and lateral forces during driving, braking, and steering, ensuring vehicle stability. Working in conjunction with the shock absorbers, springs, and stabilizer bar, it absorbs road bumps, improving comfort and handling. It maintains front wheel alignment parameters (toe-in, camber), resulting in more precise steering and reducing uneven tire wear.

[0003] The front lower control arm often requires press-fitting of bushings. The usual procedure is to assemble the front and rear bushings separately, and then reposition the front bushing after assembly. This separate assembly and repositioning increase the number of steps and manufacturing costs. Therefore, a tooling is needed that reduces the number of steps while ensuring the correct repositioning dimensions of the front bushing. Summary of the Invention

[0004] To address the aforementioned issues, a front lower control arm bushing assembly retraction device is proposed.

[0005] The technical solution of the present invention is as follows: a front lower control arm bushing assembly and retraction device, comprising a lower plate, a front bushing assembly mechanism and a base plate being provided on the top of the lower plate, the front bushing assembly mechanism and the base plate being arranged opposite to each other, a pressing mechanism and a support positioning block being provided on the top of the lower plate, the pressing mechanism and the support positioning block being located on one side of the front bushing assembly mechanism and the base plate, a rear bushing positioning mechanism and a front bushing retraction mechanism being provided on the top surface of the base plate, the rear bushing positioning mechanism and the front bushing retraction mechanism being arranged opposite to each other, a guide post and a support rod being provided on the top surface of the base plate, the guide post being symmetrically arranged on both sides of the rear bushing positioning mechanism, the top of the guide post being connected to the rear bushing pressing plate, and the support rod being located at a corner near the pressing mechanism.

[0006] Preferably, the front bushing assembly mechanism includes a first power component, the output end of which is connected to a power transmission rod, and the end of the power transmission rod away from the first power component is connected to a front bushing positioning mechanism. The front bushing assembly mechanism also includes a first power component mounting plate, which is symmetrically arranged on the lower plate. A first power component fixing plate and a power transmission rod fixing plate are respectively provided near both ends of the first power component mounting plates. The first power component is fixedly connected to the first power component mounting plate through the first power component fixing plate, and the power transmission rod is fixedly connected to the first power component mounting plate through the power transmission rod fixing plate.

[0007] Preferably, a limiting block is provided between the first power component mounting plates, the limiting block is located between the first power component fixing plate and the power transmission rod fixing plate, and the limiting block is sleeved on the power transmission rod.

[0008] Preferably, a displacement sensor connecting plate is fixedly connected to the side of the limiting block away from the power transmission rod fixing plate, and a displacement sensor is provided on the displacement sensor connecting plate.

[0009] Preferably, the clamping mechanism includes a second power component mounting base, a lower plate is fixedly connected to the bottom of the second power component mounting base, the top of the second power component mounting base is connected to the second power component through a base connecting plate, and the output end of the second power component is connected to a clamping block.

[0010] Preferably, the rear bushing press plate includes an upper fixing plate, and the bottom of the upper fixing plate is provided with a press head and a guide sleeve. The guide sleeves are symmetrically arranged on both sides of the press head, and the position of the guide sleeves corresponds to the guide post. When the rear bushing press plate is pressed down, the guide sleeves are sleeved on the guide post.

[0011] Preferably, the rear bushing positioning mechanism includes a positioning mechanism base, the bottom of the positioning mechanism base is fixedly connected to the lower plate, the top of the positioning mechanism base is fixedly connected to a positioning block, the positioning block has a cavity inside, a floating positioning pin is provided in the cavity, the floating positioning pin passes through the middle of the rear bushing positioning pin, and a first elastic element is provided inside the positioning block, one end of the first elastic element abuts against the bottom of the rear bushing positioning pin, and the other end abuts against the top of the positioning mechanism base.

[0012] Preferably, the front bushing retraction mechanism includes a third power component mounting base, in which a third power component is inserted. A second guide rod slides through the third power component mounting base, and the second guide rods are symmetrically arranged on both sides of the third power component. The output end of the third power component is connected to a base plate, and one end of the second guide rod is fixedly connected to the base plate. A slide rail is provided on the top surface of the base plate, through which a retraction block is slidably arranged. Multiple first guide rods are fixedly connected to one side of the retraction block. A guide rod mounting plate is provided on one side of the base plate, and the guide rod mounting plate is located on the side close to the first guide rods. The first guide rods slide through the guide rod mounting plate. The front bushing retraction mechanism also includes a second elastic element, one end of which is fixedly connected to the retraction block, and the other end of which is fixedly connected to the guide rod mounting plate.

[0013] Preferably, one end of the second elastic element is fixedly connected to the return block via a fixing member, and the other end of the second elastic element is fixedly connected to the guide rod mounting plate via a fixing member. The fixing member is detachably connected to the return block and the guide rod mounting plate.

[0014] The beneficial effects of this invention are as follows: This invention integrates the assembly of the front and rear bushings and the retraction of the front bushing into one unit, reducing manufacturing steps, improving production efficiency, and lowering manufacturing costs. During operation, workers only need to place the parts and bushings onto the tooling and activate the electrical control switch for pressing. This results in low manufacturing costs, high production efficiency, and high-quality products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front lower control arm bushing assembly and retraction device of the present invention; Figure 2 This is a schematic diagram of the front bushing assembly mechanism of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism of the present invention; Figure 4 This is a schematic diagram of the rear bushing press-fit component structure of the present invention; Figure 5 This is a cross-sectional view of the rear bushing positioning mechanism of the present invention; Figure 6 This is a schematic diagram of the front bushing retraction mechanism of the present invention, wherein (a) is a schematic diagram of the front bushing retraction mechanism at the first angle, and (b) is a schematic diagram of the front bushing retraction mechanism at the second angle.

[0016] The component names corresponding to the various reference numerals in the diagram are as follows: 1. Lower plate; 2. Front bushing assembly mechanism; 201. First power component mounting plate; 202. First power component; 203. First power component fixing plate; 204. Displacement sensor; 205. Displacement sensor connecting plate; 206. Limiting block; 207. Power transmission rod; 208. Power transmission rod fixing plate; 209. Front bushing positioning mechanism; 3. Pressing mechanism; 301. Second power component mounting base; 302. Base connecting plate; 303. Second power component; 304. Pressing block; 4. Support positioning block; 5. Rear bushing pressing plate; 501. Upper fixing plate; 50 2. Press-fit head; 503. Guide sleeve; 6. Rear bushing positioning mechanism; 601. Positioning mechanism base; 602. Positioning block; 603. Floating positioning pin; 604. Rear bushing positioning pin; 605. First elastic element; 7. Guide post; 8. Base plate; 9. Front bushing return mechanism; 901. Third power component mounting base; 902. Base plate; 903. Guide rod mounting plate; 904. Second elastic element; 905. First guide rod; 906. Fixing element; 907. Return block; 908. Slide rail; 909. Third power component; 910. Second guide rod; 10. Support rod. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0018] refer to Figure 1 , 2 As shown in the figure, this application discloses a front lower control arm bushing assembly and retraction device, including a lower plate 1. The top of the lower plate 1 is provided with a front bushing assembly mechanism 2 and a base plate 8, which are arranged opposite to each other. The top of the lower plate 1 is also provided with a pressing mechanism 3 and a support positioning block 4. The support positioning block 4 provides positioning support for the front lower control arm. The pressing mechanism 3 and the support positioning block 4 are located on one side of the front bushing assembly mechanism 2 and the base plate 8. The top surface of the base plate 8 is provided with a rear bushing positioning mechanism 6 and a front bushing retraction mechanism 9, which are arranged opposite to each other. The top surface of the base plate 8 is also provided with a guide post 7 and a support rod 10. The guide post 7 is symmetrically arranged on both sides of the rear bushing positioning mechanism 6. The top of the guide post 7 is connected to the rear bushing pressing plate 5. The support rod 10 is located near the corner of the pressing mechanism 3 and provides vertical positioning for the front lower control arm. The front lower control arm is positioned by the rear bushing positioning mechanism 6, the support positioning block 4, and the support rod 10. Secure the lower front control arm to the tooling.

[0019] The front bushing assembly mechanism 2 includes a first power component 202, which may be a cylinder. The output end of the first power component 202 is connected to a power transmission rod 207. The end of the power transmission rod 207 away from the first power component 202 is connected to a front bushing positioning mechanism 209. The front bushing assembly mechanism 2 also includes a first power component mounting plate 201. The first power component mounting plates 201 are symmetrically arranged on the lower plate 1. A first power component fixing plate 203 and a power transmission rod fixing plate 208 are respectively provided near the two ends of the first power component mounting plates 201. The first power component 202 is fixedly connected to the first power component mounting plate 201 through the first power component fixing plate 203, and the power transmission rod 207 is fixedly connected to the first power component mounting plate 201 through the power transmission rod fixing plate 208.

[0020] A limiting block 206 is provided between the first power component mounting plates 201. The limiting block 206 is located between the first power component fixing plate 203 and the power transmission rod fixing plate 208. The limiting block 206 is sleeved on the power transmission rod 207. The limiting block 206 limits the power transmission rod 207 laterally during operation and maintains axial movement.

[0021] The limit block 206 is fixedly connected to the displacement sensor connecting plate 205 on the side away from the power transmission rod fixing plate 208, and the displacement sensor connecting plate 205 is provided with a displacement sensor 204.

[0022] refer to Figure 1 ,3 As shown, the clamping mechanism 3 includes a second power component mounting base 301. The bottom of the second power component mounting base 301 is fixedly connected to the lower plate 1. The top of the second power component mounting base 301 is connected to the second power component 303 through the base connecting plate 302. The second power component 303 can be a cylinder. The output end of the second power component 303 is connected to the clamping block 304.

[0023] refer to Figure 1 , 4 As shown, the rear bushing press plate 5 includes an upper fixed plate 501. The bottom of the upper fixed plate 501 is provided with a press head 502 and a guide sleeve 503. The guide sleeve 503 is symmetrically arranged on both sides of the press head 502. The position of the guide sleeve 503 corresponds to the guide post 7. When the rear bushing press plate 5 is pressed down, the guide sleeve 503 is sleeved on the guide post 7. The rear bushing press plate 5 is fixed to the lifting equipment with bolts. The downward movement of the lifting equipment drives the press head 502 to press down. The pressing of the press head 502 causes the rear bushing to be press-fitted onto the front lower control arm.

[0024] refer to Figure 1 , 5 As shown, the rear bushing positioning mechanism 6 includes a positioning mechanism base 601. The bottom of the positioning mechanism base 601 is fixedly connected to the lower plate 1, and the top of the positioning mechanism base 601 is fixedly connected to a positioning block 602. The positioning block 602 has a cavity inside, and a floating positioning pin 603 is provided in the cavity. A rear bushing positioning pin 604 passes through the middle of the floating positioning pin 603. A first elastic element 605 is provided inside the positioning block 602. The first elastic element 605 can be a spring. One end of the first elastic element 605 abuts against the bottom of the rear bushing positioning pin 604, and the other end abuts against the top of the positioning mechanism base 601.

[0025] First, the swing arm body is fixed on the tooling, and then the rear bushing is fixed on the tooling via the positioning block 602. The lifting device moves downward to drive the pressing head 502 to press down. During pressing, the floating positioning pin 603 moves downward in the cavity of the positioning block 602. After pressing to the designated position, the device moves upward to drive the pressing head 502 to move upward. The first elastic element 605 resets the positioning block 602 and the floating positioning pin 603. The positioning block 602 provides vertical positioning for the swing arm body, the floating positioning pin 603 provides positioning for the bushing assembly hole of the swing arm body, and the rear bushing positioning pin 604 provides positioning for the rear bushing.

[0026] refer to Figure 1 , 6As shown, the front bushing retraction mechanism 9 includes a third power component mounting base 901, within which a third power component 909 (which can be a cylinder) is mounted. A second guide rod 910 slides through the third power component mounting base 901, symmetrically arranged on both sides of the third power component 909. The second guide rod 910 guides the bushing retraction mechanism 9 vertically. The output end of the third power component 909 is connected to a base plate 902, and one end of the second guide rod 910 is fixedly connected to the base plate 902. When the third power component 909 raises or lowers the base plate 902, the second guide rod 910 provides guidance and stability. A slide rail 908 is provided on the top surface of the base plate 902, through which a retraction block 90 is slidably mounted. 7. The return block 907 fixes the front bushing positioning mechanism 209, playing a key return role. Multiple first guide rods 905 are fixedly connected to one side of the return block 907. The first guide rods 905 guide the return block 907. A guide rod mounting plate 903 is provided on one side of the base plate 902. The guide rod mounting plate 903 is located on the side close to the first guide rods 905. The first guide rods 905 slide through the guide rod mounting plate 903. The front bushing return mechanism 9 also includes a second elastic element 904. The second elastic element 904 can be a spring. One end of the second elastic element 904 is fixedly connected to the return block 907, and the other end of the second elastic element 904 is fixedly connected to the guide rod mounting plate 903. The second elastic element 904 provides power for the return block 907 to reset.

[0027] One end of the second elastic element 904 is fixedly connected to the return block 907 via the fixing element 906, and the other end of the second elastic element 904 is fixedly connected to the guide rod mounting plate 903 via the fixing element 906. The fixing element 906 is detachably connected to the return block 907 and the guide rod mounting plate 903 via threads, allowing for quick installation and replacement of the second elastic element 904.

[0028] After the bushing is pressed into the designated position, the third power component 909 moves upward, pushing the front bushing retraction mechanism 9 upward, causing the retraction block 907 to open and lock the front bushing positioning mechanism 209. After the first power component 202 retracts and drives the retraction mechanism to the designated position, the third power component 909 moves downward, driving the bushing retraction mechanism 9 downward. The first power component 202 resets, and the retraction block 907 is reset by the action of the second elastic component 904, completing the retraction.

[0029] The specific working principle is as follows: During operation, the rear bushing pressing plate 5 is fixed on the lifting mechanism. When in use, the product is placed on the rear bushing positioning mechanism 6 and the product support positioning block 4, and then the product support rod 10 is used for product positioning and support. Then, the front and rear bushings are respectively placed into the front bushing positioning mechanism 209 and the rear bushing positioning mechanism 6. The electrical control switch is turned on to press the product. After the electrical control switch is turned on, the product pressing mechanism 3 presses the product, and the rear bushing pressing plate 5 can be raised and lowered to perform the pressing work. After the rear bushing is pressed, the front bushing assembly mechanism 2 performs the front bushing pressing work. After the front bushing is pressed into place by the displacement sensor 204, the front bushing retraction mechanism 9 rises, and the front bushing is positioned at the opening of the retraction block 907 to perform the retraction. After retraction to the designated position, the third power component 909 moves down, driving the retraction mechanism 9 to fall back. The second elastic component 904 returns the retraction block 907 to its original position, the front bushing assembly mechanism 2 retracts, the rear bushing pressing plate 5 rises, the pressing mechanism 3 opens, and the pressing and retraction is completed.

[0030] The beneficial effects are: This invention integrates the assembly of the front and rear bushings and the retraction of the front bushing into one unit, reducing manufacturing steps, improving production efficiency, and lowering manufacturing costs. During operation, workers only need to place the parts and bushings onto the tooling and activate the electrical control switch for pressing. This results in low manufacturing costs, high production efficiency, and high-quality products.

[0031] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, 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, and therefore should not be construed as a limitation of the present invention. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral connection.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A front lower control arm bushing assembly retraction device, characterized in that, Includes a lower plate (1), the top of the lower plate (1) is provided with a front bushing assembly mechanism (2) and a base plate (8), the front bushing assembly mechanism (2) and the base plate (8) are arranged opposite to each other, the top of the lower plate (1) is also provided with a pressing mechanism (3) and a support positioning block (4), the pressing mechanism (3) and the support positioning block (4) are located on one side of the front bushing assembly mechanism (2) and the base plate (8), the top surface of the base plate (8) is provided with a rear bushing positioning mechanism (6) and a front bushing retraction mechanism (9), the rear bushing positioning mechanism (6) and the front bushing retraction mechanism (9) are arranged opposite to each other, the top surface of the base plate (8) is also provided with a guide post (7) and a support rod (10), the guide post (7) is symmetrically arranged on both sides of the rear bushing positioning mechanism (6), the top of the guide post (7) is connected to the rear bushing pressing plate (5), and the support rod (10) is located at a corner near the pressing mechanism (3).

2. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, The front bushing assembly mechanism (2) includes a first power component (202), the output end of the first power component (202) is connected to a power transmission rod (207), and the end of the power transmission rod (207) away from the first power component (202) is connected to a front bushing positioning mechanism (209). The front bushing assembly mechanism (2) also includes a first power component mounting plate (201), the first power component mounting plates (201) are symmetrically arranged on the lower plate (1), and the first power component mounting plates (201) are respectively provided with a first power component fixing plate (203) and a power transmission rod fixing plate (208) near both ends. The first power component (202) is fixedly connected to the first power component mounting plate (201) through the first power component fixing plate (203), and the power transmission rod (207) is fixedly connected to the first power component mounting plate (201) through the power transmission rod fixing plate (208).

3. The front lower control arm bushing assembly retraction device according to claim 2, characterized in that, A limiting block (206) is provided between the first power component mounting plates (201). The limiting block (206) is located between the first power component fixing plate (203) and the power transmission rod fixing plate (208). The limiting block (206) is sleeved on the power transmission rod (207).

4. The front lower control arm bushing assembly retraction device according to claim 3, characterized in that, The limiting block (206) is fixedly connected to the displacement sensor connecting plate (205) on the side away from the power transmission rod fixing plate (208), and the displacement sensor connecting plate (205) is provided with a displacement sensor (204).

5. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, The clamping mechanism (3) includes a second power component mounting base (301), the bottom of the second power component mounting base (301) is fixedly connected to the lower plate (1), the top of the second power component mounting base (301) is connected to the second power component (303) through the base connecting plate (302), and the output end of the second power component (303) is connected to the clamping block (304).

6. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, The rear bushing press plate (5) includes an upper fixing plate (501). The bottom of the upper fixing plate (501) is provided with a press head (502) and a guide sleeve (503). The guide sleeve (503) is symmetrically arranged on both sides of the press head (502). The position of the guide sleeve (503) corresponds to the guide post (7). When the rear bushing press plate (5) is pressed down, the guide sleeve (503) is sleeved on the guide post (7).

7. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, The rear bushing positioning mechanism (6) includes a positioning mechanism base (601), the bottom of the positioning mechanism base (601) is fixedly connected to the lower plate (1), the top of the positioning mechanism base (601) is fixedly connected to a positioning block (602), the positioning block (602) has a cavity inside, a floating positioning pin (603) is provided in the cavity, a rear bushing positioning pin (604) is provided in the middle of the floating positioning pin (603), and a first elastic element (605) is provided inside the positioning block (602), one end of the first elastic element (605) abuts against the bottom of the rear bushing positioning pin (604), and the other end abuts against the top of the positioning mechanism base (601).

8. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, The front bushing retraction mechanism (9) includes a third power component mounting base (901), a third power component (909) is inserted inside the third power component mounting base (901), and a second guide rod (910) is slidably inserted on the third power component mounting base (901). The second guide rod (910) is symmetrically arranged on both sides of the third power component (909). The output end of the third power component (909) is connected to the base plate (902), and one end of the second guide rod (910) is fixedly connected to the base plate (902). The top surface of the base plate (902) is provided with a slide rail (908), which allows for sliding. The return block (907) has multiple first guide rods (905) fixedly connected to one side. The bottom plate (902) has a guide rod mounting plate (903) on one side. The guide rod mounting plate (903) is located on the side close to the first guide rod (905). The first guide rod (905) slides through the guide rod mounting plate (903). The front bushing return mechanism (9) also includes a second elastic element (904). One end of the second elastic element (904) is fixedly connected to the return block (907), and the other end of the second elastic element (904) is fixedly connected to the guide rod mounting plate (903).

9. The front lower control arm bushing assembly retraction device according to claim 1, characterized in that, One end of the second elastic element (904) is fixedly connected to the return block (907) through the fixing element (906), and the other end of the second elastic element (904) is fixedly connected to the guide rod mounting plate (903) through the fixing element (906). The fixing element (906) is detachably connected to the return block (907) and the guide rod mounting plate (903).

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