Flexible clamping tool for passenger car door

Abstract

The utility model discloses a flexible clamping tool for a passenger car door, and relates to the technical field of car assembly, a positioning mechanism is arranged on a processing table, the positioning mechanism comprises a positioning baffle plate, the processing table is provided with an auxiliary supporting part and a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is connected with a sliding block, the sliding block is provided with a rotating seat, and the rotating seat is connected with the positioning baffle plate. The elastic clamping pieces are symmetrically arranged on one side of the base up and down, the two or more flaky electromagnets are evenly arranged on the sides, close to each other, of the elastic clamping pieces, the air bags are arranged on the other sides of the elastic clamping pieces, the liquid storage box is arranged on the sliding block, electrorheological fluid is contained in the liquid storage box, the pump body is fixedly arranged on the liquid storage box, one end of the rubber hose is connected with the pump body, and the other end of the rubber hose is connected with the air bag. The other end of the rubber hose communicates with the airbag. According to the device, during clamping, the elastic clamping pieces can be attached to the upper side and the lower side of the passenger car door through the adsorption effect of the sheet-shaped electromagnets, and therefore the situation that clamping is not firm is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automobile assembly technology, and more specifically, to a flexible clamping tool for passenger car doors. Background Technology

[0002] Fixtures are frequently used auxiliary tools, and various fixtures are required in the automobile manufacturing process. Fixtures are specifically used in the manufacturing and processing of automobile doors.

[0003] In the prior art, such as the Chinese utility model patent with publication number CN208662927U, a door frame welding fixture is disclosed. This fixture, with its long first and second clamping plates, has a large contact area with the door frame, which significantly reduces the pressure exerted by the first and second clamping plates on the door frame during clamping, thereby reducing deformation. A second electric push rod facilitates adjustment of the height of each lifting clamp, making the clamping of the door frame more convenient. However, the above technical solution still has the following drawbacks: because the shape of a car door is usually irregular, the first and second clamping plates are prone to insecure clamping when holding the door. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes a flexible clamping fixture for passenger car doors. During clamping, the adsorption effect of sheet electromagnets is used to allow the elastic clamping pieces to adhere to the upper and lower sides of the passenger car door, thereby avoiding insecure clamping. After the elastic clamping pieces are properly attached, by pumping electrochemical fluid into the airbag and energizing it, a firm support for the passenger car door can be achieved. The structure is simple and easy to use.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a flexible clamping fixture for passenger car doors, including a processing table, a positioning mechanism, and a clamping mechanism. The positioning mechanism is disposed on the processing table and includes a positioning baffle. The clamping mechanism includes an auxiliary support, a hydraulic telescopic rod, a slider, a rotating seat, and a clamping component. The processing table is provided with the auxiliary support and the hydraulic telescopic rod. The output end of the hydraulic telescopic rod is connected to the slider. The slider is provided with a rotating seat. The output end of the rotating seat is connected to the clamping component. The clamping component includes a base, elastic clamping pieces, sheet electromagnets, an air bladder, a rubber hose, a pump body, and a liquid storage tank. Elastic clamping pieces are symmetrically arranged on one side of the base. Two or more sheet electromagnets are evenly arranged on the side of the elastic clamping pieces that are close to each other. An air bladder is provided on the other side of the elastic clamping pieces. The liquid storage tank is disposed on the slider and contains electrorheological fluid. The pump body is fixed on the liquid storage tank. One end of the rubber hose is connected to the pump body, and the other end of the rubber hose is connected to the air bladder.

[0007] In a preferred embodiment of this invention, the auxiliary support includes a support plate, a hydraulic cylinder, hydraulic rods, and a flexible pad. The support plate is fixed to the bottom of the processing table. A hydraulic cylinder is provided on the support plate. Two or more hydraulic rods are evenly arranged on the top of the hydraulic cylinder. A flexible pad is connected to the top of the hydraulic rod. Two or more through holes are also provided on the processing table, and the number of through holes is equal to the number of hydraulic rods and their positions correspond one-to-one.

[0008] In a preferred embodiment of this invention, the flexible pad has a frustum structure and the surface of the flexible pad is provided with anti-slip texture.

[0009] In a preferred embodiment of this invention, the flexible pad is made of rubber material.

[0010] In a preferred embodiment of this invention, the positioning mechanism further includes a drive motor, a first lead screw, a sliding seat, and a guide rod. The drive motor is fixedly mounted on the processing table, and the output end of the drive motor is connected to the first lead screw. The first lead screw is threadedly connected to the sliding seat, and the positioning baffle is disposed on the top of the sliding seat. The guide rod is also slidably connected to the sliding seat and is fixedly mounted on the processing table. The guide rod is also provided with scale lines.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model proposes a flexible clamping fixture for passenger car doors. During clamping, the adsorption effect of sheet electromagnets is used to allow the elastic clamping pieces to adhere to the upper and lower sides of the passenger car door, thereby avoiding insecure clamping. After the elastic clamping pieces are properly attached, an electrorheological fluid is pumped into the airbag and energized to achieve firm support for the passenger car door. The structure is simple and easy to use. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of a flexible clamping tool for passenger car doors provided in a specific embodiment of this utility model.

[0014] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0015] Figure 3 yes Figure 1 A half-section view from the front view direction;

[0016] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle.

[0017] In the picture:

[0018] 1. Processing table; 2. Positioning mechanism; 21. Positioning baffle; 22. Drive motor; 23. First lead screw; 24. Sliding seat; 25. Guide rod; 3. Clamping mechanism; 31. Auxiliary support part; 311. Support plate; 312. Hydraulic cylinder; 313. Hydraulic rod; 314. Flexible pad; 315. Through hole; 32. Hydraulic telescopic rod; 33. Slider; 34. Rotating seat; 35. Clamping component; 351. Base; 352. Elastic clamping piece; 353. Sheet electromagnet; 354. Airbag; 355. Rubber hose; 356. Pump body; 357. Liquid storage tank. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-4As shown, the embodiment provides a flexible clamping fixture for passenger car doors, including a processing table 1, a positioning mechanism 2, and a clamping mechanism 3. The positioning mechanism 2 is disposed on the processing table 1 and includes a positioning baffle 21. The clamping mechanism 3 includes an auxiliary support 31, a hydraulic telescopic rod 32, a slider 33, a rotating seat 34, and a clamping member 35. The processing table 1 is provided with the auxiliary support 31 and the hydraulic telescopic rod 32. The output end of the hydraulic telescopic rod 32 is connected to the slider 33. The slider 33 is provided with the rotating seat 34. The output end of the rotating seat 34 is connected to the clamping member 35. The clamping member 35 includes a base 351. The base 351 has elastic clips 352 symmetrically arranged on one side, sheet electromagnets 353 evenly arranged on the side where the elastic clips 352 are close to each other, and airbags 354 are arranged on the other side of the elastic clips 352. The base 351 has elastic clips 352 symmetrically arranged on one side, and two or more sheet electromagnets 353 are evenly arranged on the side where the elastic clips 352 are close to each other. The base 352 has airbags 354 arranged on the other side of the elastic clips 352. The base 357 is arranged on the slider 33 and contains electrorheological fluid. The base 356 is fixed on the base 357. One end of the rubber hose 355 is connected to the base 356 and the other end of the rubber hose 355 is connected to the airbag 354. In this embodiment, two positioning mechanisms 2 are provided, and the two positioning mechanisms 2 are located at the left end and the front end of the top surface of the processing table 1, respectively, for correcting the position of the passenger car door. The positioning baffle 21 is arranged vertically. When the end of the passenger car door abuts against the positioning baffle 21, it can push the passenger car door to move, thereby realizing the correction of its placement position.Two or more clamping mechanisms 3 are provided, and the two or more clamping mechanisms 3 are respectively located at the left and right ends of the top surface of the processing table 1. They are used to clamp the two end areas of the passenger car door, thereby fixing the passenger car door and facilitating subsequent processing, assembly, and other operations. Among them, the auxiliary support part 31 is used to assist in supporting the passenger car door panel before clamping, so that it is suspended above the processing table 1, and can adaptively adjust the height of the passenger car door to facilitate clamping operations. The slider 33 is slidably connected to the top surface of the processing table 1, and the hydraulic telescopic rod 32 is horizontally arranged on the top surface of the processing table 1 to drive the slider 33 left and right. The position of the clamping member 35 is adjusted to meet the usage requirements of passenger car doors of different sizes. The rotating seat 34 is preferably a rotating motor. The rotating seat 34 is fixed on the top of the slider 33 and is used to adjust the orientation of the clamping member 35. When not in use, the clamping member 35 rotates to the side away from the processing table 1. Conversely, when the passenger car door is hoisted onto the processing table 1, the clamping member 35 rotates to the side facing the processing table 1, thereby clamping the passenger car door. The clamping member 35 is used to clamp and fix both ends of the passenger car door. The base 351 is located above the rotating seat 34, and the power output shaft of the rotating seat 34 is... The base 351 is connected to the bottom center; the elastic clip 352 is made of elastic material and can bend and deform; the sheet electromagnet 353 is prior art, as disclosed in Chinese utility model patent CN208116600U, and the sheet electromagnet 353 is evenly arranged on the elastic clip 352. Since passenger car doors are usually made of steel, when the end of the passenger car door is located between the two elastic clips 352, the sheet electromagnet 353 will generate magnetism after being energized and attract to the surface of the passenger car door, thereby causing the elastic clip 352 to deform adaptively. This system enables secure clamping of irregularly shaped passenger car doors, improving its applicability. The airbag 354 is made of rubber or other flexible materials and is located on the side of the two elastic clamps 352 that are far apart. The electrorheological fluid in the reservoir 357 is initially liquid; the pump 356 pumps the fluid into the airbag 354. When electricity is applied to the fluid, it changes from liquid to solid, thus providing fixed support for the elastic clamps 352 and bearing the weight of the passenger car door. The rubber hose 355 is made of rubber and can be bent and deformed arbitrarily. Furthermore, a storage battery and a main controller are installed on the processing table 1. The storage battery powers the device; the main controller can be a microcontroller, PLC, or other digital processor, used to control the positioning mechanism 2 and the clamping mechanism 3 to work together. One end of the airbag 354 is embedded in the base 351. After the electrorheological fluid inside the airbag 354 solidifies, the base 351 fixes one end of the solid to prevent it from bending.

[0021] Specifically, the auxiliary support 31 includes a support plate 311, a hydraulic cylinder 312, hydraulic rods 313, and a flexible pad 314. The support plate 311 is fixed to the bottom of the processing table 1. The hydraulic cylinder 312 is mounted on the support plate 311. Two or more hydraulic rods 313 are evenly arranged on the top of the hydraulic cylinder 312. The top of the hydraulic rods 313 is connected to the flexible pad 314. The processing table 1 also has two or more through holes 315, and the number of through holes 315 is equal to the number of hydraulic rods 313, and their positions correspond one-to-one. In this embodiment, the support plate 311 is arranged horizontally directly below the processing table 1, serving to fix and support it. Hydraulic cylinders 312 are mounted on support plate 311. Hydraulic rods 313 are all vertically arranged, and two or more hydraulic rods 313 are connected to the same hydraulic cylinder 312. This ensures that each hydraulic rod 313 provides consistent and uniform support to the passenger door, resulting in better support. When pressure is applied to the hydraulic cylinder 312, the hydraulic rods 313 move upwards, causing the passenger door to move upwards. When pressure is released from the hydraulic cylinder 312, the hydraulic rods 313 move downwards, causing the passenger door to move downwards. A flexible pad 314 contacts the passenger door, preventing scratches on the passenger door surface. The through-hole 315 should be larger than the flexible pad 314, allowing the flexible pad 314 to be retracted into the through-hole 315 when not in use, and extended to rest against the bottom of the passenger door when in use.

[0022] Specifically, the flexible pad 314 has a frustum structure, and its surface is provided with anti-slip texture. In this embodiment, the anti-slip texture can reduce the possibility of the passenger door slipping during processing.

[0023] Specifically, the flexible pad 314 is made of rubber material.

[0024] Specifically, the positioning mechanism 2 also includes a drive motor 22, a first lead screw 23, a sliding seat 24, and a guide rod 25. The drive motor 22 is fixed on the processing table 1, and the output end of the drive motor 22 is connected to the first lead screw 23. The sliding seat 24 is threaded onto the first lead screw 23, and a positioning baffle 21 is disposed on the top of the sliding seat 24. The guide rod 25 is also slidably connected to the sliding seat 24 and is fixed on the processing table 1. The guide rod 25 is also provided with scale lines. In this embodiment, the first lead screw 23 is horizontally disposed on the processing table 1. The drive motor 22 can drive the first lead screw 23 to rotate, thereby causing the sliding seat 24 to slide left and right on the processing table 1 to adjust the position of the positioning baffle 21. The guide rod 25 is horizontally arranged with the first lead screw 23, and during the sliding of the sliding seat 24, the user can determine the position of the positioning baffle 21 through the scale lines, thus facilitating the adjustment of the position of the positioning baffle 21 according to different models of passenger car doors, resulting in better applicability. Furthermore, when hoisting the passenger car door to the processing table, the positioning baffle 21 should be as close as possible to the edge of the processing table 1 to avoid collision with the passenger car door.

[0025] Working Principle: In use, the passenger car door is hoisted above the processing table 1. Simultaneously, hydraulic cylinder 312 is activated, driving two or more hydraulic rods 313 upwards until they contact the bottom surface of the passenger car door, thus supporting the door and ensuring that both ends of the door are within the height range between the two elastic clamps 352. Then, hydraulic telescopic rod 32 is activated, driving slider 33 to move closer to the passenger car door. When the clamping member 35 approaches the door, rotating seat 34 is activated, driving clamping member 35 to rotate 180°, thus positioning the two elastic clamps 352 respectively. At the top and bottom sides of the passenger car door, the sheet electromagnets 353 are energized. After being energized, the sheet electromagnets 353 will generate a magnetic attraction, which will attract them to the surface of the passenger car door and cause the elastic clips 352 to deform accordingly. When all the sheet electromagnets 353 are attracted and attached to the passenger car door, the pump body 356 will pump the electrorheological fluid in the reservoir 357 into the airbag 354. Then, the airbag 354 will be energized, causing the electrorheological fluid inside to solidify, thereby clamping and fixing the passenger car door. At this time, the hydraulic cylinder 312 will control the hydraulic rod 313 to move down and no longer support the passenger car door, which will facilitate subsequent processing, assembly and other operations.

[0026] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A flexible clamping fixture for passenger car doors, characterized in that: The system includes a processing table (1), a positioning mechanism (2), and a clamping mechanism (3). The positioning mechanism (2) is mounted on the processing table (1) and includes a positioning baffle (21). The clamping mechanism (3) includes an auxiliary support (31), a hydraulic telescopic rod (32), a slider (33), a rotating seat (34), and a clamping component (35). The processing table (1) is provided with the auxiliary support (31) and the hydraulic telescopic rod (32). The output end of the hydraulic telescopic rod (32) is connected to the slider (33). The slider (33) is provided with the rotating seat (34). The output end of the rotating seat (34) is connected to the clamping component (35). The clamping component (35) includes a base (351) and an elastic clamping piece (352). The base (351) has a base (351) with elastic clips (352) symmetrically arranged on one side. Two or more sheet electromagnets (353) are evenly arranged on the side of the elastic clips (352) that are close to each other. An airbag (354) is arranged on the other side of the elastic clips (352). The liquid storage tank (357) is set on the slider (33) and contains electrorheological fluid. The pump body (356) is fixed on the liquid storage tank (357). One end of the rubber hose (355) is connected to the pump body (356) and the other end of the rubber hose (355) is connected to the airbag (354).

2. The flexible clamping fixture for passenger car doors according to claim 1, characterized in that: The auxiliary support (31) includes a support plate (311), a hydraulic cylinder (312), a hydraulic rod (313), and a flexible pad (314). The support plate (311) is fixed to the bottom of the processing table (1). The hydraulic cylinder (312) is provided on the support plate (311). Two or more hydraulic rods (313) are evenly arranged on the top of the hydraulic cylinder (312). The top of the hydraulic rod (313) is connected to the flexible pad (314). The processing table (1) is also provided with two or more through holes (315), and the number of through holes (315) is equal to the number of hydraulic rods (313) and their positions correspond one-to-one.

3. The flexible clamping fixture for passenger car doors according to claim 2, characterized in that: The flexible pad (314) has a frustum structure and the surface of the flexible pad (314) is provided with anti-slip texture.

4. A flexible clamping fixture for a passenger car door according to claim 3, characterized in that: The flexible pad (314) is made of rubber material.

5. A flexible clamping fixture for a passenger car door according to claim 1, characterized in that: The positioning mechanism (2) further includes a drive motor (22), a first lead screw (23), a sliding seat (24), and a guide rod (25). The drive motor (22) is fixed on the processing table (1). The output end of the drive motor (22) is connected to the first lead screw (23). The first lead screw (23) is threadedly connected to the sliding seat (24). The positioning baffle (21) is set on the top of the sliding seat (24). The guide rod (25) is also slidably connected to the sliding seat (24). The guide rod (25) is fixed on the processing table (1). The guide rod (25) is also provided with scale lines.

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