Welding and grinding device for automobile bumper

Abstract

The utility model discloses an automobile bumper welding and grinding device which comprises two supporting plates, a fixing table is arranged between the two supporting plates, a grinding frame is arranged above the fixing table, a threaded hole is formed in the outer surface of the grinding frame, a lead screw is in threaded connection with the interior of the threaded hole, and the lead screw is in threaded connection with the fixing table. The left end and the right end of the lead screw are rotationally connected with the supporting plates through bearings, a sliding hole is formed in the outer surface of the grinding frame, a sliding rod is slidably connected into the sliding hole, and the left end and the right end of the sliding rod are connected with the supporting plates. According to the device, a third motor is controlled to be matched with a rotating shaft to drive a second motor to adjust the angle of a grinding wheel, an electric push rod is controlled to drive a fixing table to be adjusted, the fixing table drives a bumper to make contact with the grinding wheel through cooperation of adjusting legs and fixing sleeves, and the second motor drives the grinding wheel to weld the welding position of the bumper; therefore, the grinding angle of the grinding wheel can be adjusted according to the welding position of the bumper.

Description

Technical Field

[0001] This utility model relates to the field of automobile bumper processing, and in particular to a welding and grinding device for automobile bumpers. Background Technology

[0002] The front and rear bumpers of a car not only have a decorative function, but more importantly, they are safety devices that absorb and mitigate external impacts, protect the car body, and ensure the safety of the occupants. With the development of the automotive industry and the extensive use of engineering plastics in the automotive industry, car bumpers, as an important safety device, have also embarked on a path of innovation. At present, in addition to maintaining their original protective functions, front and rear bumpers of cars also strive for harmony and unity with the car body shape and pursue lightweight design.

[0003] Bumper welding is used to assemble the left and right brackets of a car bumper with the front panel assembly. After the bumper is welded, the welded areas need to be ground smooth to ensure the appearance quality of the bumper. However, the welded areas of the left and right brackets and the front panel are mostly curved structures, and existing grinding devices are not convenient for adjusting the angle of the grinding equipment, thus making it inconvenient to grind the welded areas. Therefore, we propose a welding grinding device for car bumpers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a welding and grinding device for automobile bumpers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A welding and grinding device for an automobile bumper includes two support plates and a fixed platform between them. A grinding frame is mounted above the fixed platform. The outer surface of the grinding frame has threaded holes, and a lead screw is threaded into the threaded holes. Both ends of the lead screw are rotatably connected to the support plates via bearings. The outer surface of the grinding frame has sliding holes, and a sliding rod is slidably connected into the sliding holes. Both ends of the sliding rod are connected to the support plates. A housing is mounted on the right side of one of the support plates. A first motor is installed inside the housing, and its output end is connected to the left end of the lead screw. A second motor is installed inside the grinding frame, and a grinding wheel is mounted on its output end. Two rotating shafts are rotatably connected to the inner wall of the grinding frame via bearings. The ends of the two rotating shafts that are close to each other are connected to the outer surface of the second motor. A third motor is mounted on the back of the grinding frame, and its output end is connected to one end of one of the rotating shafts.

[0007] In a further embodiment, the bottom surfaces of the two support plates are fixedly connected to a base, and the upper surface of the base is provided with two sets of fixing holes.

[0008] In a further embodiment, the bottom surface of the fixed platform is fixedly connected to two adjusting legs, and the outer surface of each adjusting leg is slidably connected to a fixing sleeve. The bottom end of each fixing sleeve is connected to the upper surface of the base. An electric push rod is installed on the upper surface of the base, and the output end of the electric push rod is connected to the bottom surface of the fixed platform.

[0009] In a further embodiment, a fixing frame is fixedly connected to the upper surface of the fixing platform, a threaded sleeve is fixedly embedded in the upper surface of the fixing frame, a fixing screw is connected to the internal thread of the threaded sleeve, a limit plate is fixedly connected to the bottom end of the fixing screw, and a throttle is fixedly connected to the top end of the fixing screw.

[0010] In a further embodiment, the right side of the chassis is hinged with a door, and the outer surface of the chassis is provided with a heat dissipation window.

[0011] In a further embodiment, a control switch is installed on the right side of the door, and the control switch is electrically connected to the first motor, the second motor, the third motor and the electric push rod via wires.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a fixed platform on the base to place the welded bumper on the platform. Rotating the fixing screw via a throttle causes a limiting plate to fix the horizontal section of the bumper. The first motor in the control housing drives a lead screw to engage with a threaded hole on the grinding frame, causing the grinding frame to slide along a slide rod to the welding position on one side of the bumper. Controlling the third motor in conjunction with a rotating shaft drives the second motor to adjust the angle of the grinding wheel. Controlling the electric push rod drives the fixed platform to adjust, so that the fixed platform, with the cooperation of the adjusting legs and the fixing sleeve, causes the bumper to contact the grinding wheel. The second motor then drives the grinding wheel to weld the bumper at the welding position. The grinding angle of the grinding wheel can then be adjusted according to the welding position of the bumper. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a welding and grinding device for a car bumper.

[0015] Figure 2 This is a schematic diagram of the connection structure of the fixed platform in the welding and grinding device for a car bumper.

[0016] Figure 3 This is a side-view three-dimensional structural diagram of the grinding frame in the welding and grinding device for a car bumper.

[0017] Figure 4 This is a top sectional view of the support plate in the welding and grinding device for a car bumper.

[0018] In the diagram: 1. Support plate; 2. Base; 3. Fixing sleeve; 4. Adjusting leg; 5. Fixing platform; 6. Slide rod; 7. First motor; 8. Grinding frame; 9. Threaded hole; 10. Lead screw; 11. Chassis; 12. Door; 13. Control switch; 14. Heat dissipation window; 15. Fixing hole; 16. Electric push rod; 17. Rotary handle; 18. Limit plate; 19. Fixing frame; 20. Fixing screw; 21. Slide hole; 22. Rotating shaft; 23. Third motor; 24. Second motor; 25. Grinding wheel; 26. Threaded sleeve. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "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 this utility model 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 this utility model. Furthermore, 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. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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.

[0022] Please see Figure 1-4In this utility model, a welding and grinding device for an automobile bumper includes two support plates 1, with a fixed platform 5 between the two support plates 1. A grinding frame 8 is provided above the fixed platform 5. The outer surface of the grinding frame 8 has a threaded hole 9, and a lead screw 10 is threadedly connected inside the threaded hole 9. Both ends of the lead screw 10 are rotatably connected to the support plate 1 through bearings. The outer surface of the grinding frame 8 has a sliding hole 21, and a sliding rod 6 is slidably connected inside the sliding hole 21. Both ends of the sliding rod 6 are connected to the support plate 1. A housing 11 is installed on the right side of one of the support plates 1. A first motor 7 is installed inside the housing 11. The output end of the first motor 7 is connected to the left end of the lead screw 10. The first motor 7 in the housing 11 drives the lead screw 10 to engage with the threaded hole 9 in the grinding frame 8, so that the grinding frame 8 adjusts the position of the grinding wheel 25 along the sliding rod 6.

[0023] The grinding frame 8 has a second motor 24 inside, and a grinding wheel 25 is installed at the output end of the second motor 24. The inner wall of the grinding frame 8 is rotatably connected to two rotating shafts 22 through bearings. The ends of the two rotating shafts 22 that are close to each other are connected to the outer surface of the second motor 24. A third motor 23 is installed on the back of the grinding frame 8. The output end of the third motor 23 is connected to one end of one of the rotating shafts 22. The third motor 23, in conjunction with the rotating shaft 22, drives the second motor 24 to adjust the tilt angle of the grinding wheel 25. Two adjusting legs 4 are fixedly connected to the bottom surface of the fixed platform 5. A fixing sleeve 3 is slidably connected to the outer surface of each adjusting leg 4. The bottom end of each fixing sleeve 3 is connected to the upper surface of the base 2. An electric push rod 16 is installed on the upper surface of the base 2. The output end of the electric push rod 16 is connected to the bottom surface of the fixed platform 5. The electric push rod 16 is controlled to drive the fixed platform 5 to rise, so that the welding position of the bumper contacts the grinding wheel 25. The second motor 24 is started to drive the grinding wheel 25 to grind the welding position of the bumper.

[0024] The bottom surfaces of the two support plates 1 are fixedly connected to the base 2. The upper surface of the base 2 has two sets of fixing holes 15. The grinding device can be installed by the cooperation of the base 2 and the fixing holes 15. The upper surface of the fixed platform 5 is fixedly connected to the fixing frame 19. The upper surface of the fixing frame 19 is fixedly embedded with the threaded sleeve 26. The internal thread of the threaded sleeve 26 is connected to the fixing screw 20. The bottom end of the fixing screw 20 is fixedly connected to the limit plate 18. The top end of the fixing screw 20 is fixedly connected to the handle 17. The handle 17 drives the fixing screw 20 to engage with the threaded sleeve 26, and the fixing screw 20 moves... The limit plate 18 fixes the bumper. The right side of the chassis 11 is hinged to the door 12. The outer surface of the chassis 11 is provided with a heat dissipation window 14. The door 12 can protect the chassis 11, and the heat dissipation window 14 can facilitate the heat dissipation of the chassis 11. The right side of the door 12 is equipped with a control switch 13. The control switch 13 is electrically connected to the first motor 7, the second motor 24, the third motor 23 and the electric push rod 16 through wires. The control switch 13 can be used to control the grinding device. The third motor 23 is a servo motor, which can be used to control the tilt angle of the grinding wheel 25.

[0025] The working principle of this utility model is as follows:

[0026] In use, first, fix the grinding device in the working position using the base 2, turn on the power of the grinding device, place the welded bumper groove downwards on the fixed platform 5, and then drive the fixing screw 20 to engage with the threaded sleeve 26 by the throttle 17. The fixing screw 20 drives the limiting plate 18 to fix the bumper. The first motor 7 in the control box 11 drives the threaded screw 10 to engage with the threaded hole 9 in the grinding frame 8, so that the grinding frame 8 adjusts the position of the grinding wheel 25 along the slide rod 6. Start the third motor 23 to work with the rotating shaft 22 to drive the second motor 24 to adjust the tilt angle of the grinding wheel 25. Control the electric push rod 16 to drive the fixed platform 5 to rise, so that the welding position of the bumper contacts the grinding wheel 25. The second motor 24 starts to drive the grinding wheel 25 to grind the welding position of the bumper.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding and grinding device for an automobile bumper, characterized in that: The device includes two support plates (1), with a fixed platform (5) between them. A grinding frame (8) is positioned above the fixed platform (5). The outer surface of the grinding frame (8) has a threaded hole (9), and a lead screw (10) is threaded into the threaded hole (9). Both ends of the lead screw (10) are rotatably connected to the support plate (1) via bearings. The outer surface of the grinding frame (8) has a sliding hole (21), and a sliding rod (6) is slidably connected into the sliding hole (21). Both ends of the sliding rod (6) are connected to the support plate (1). A housing (11) is installed on the right side of one of the support plates (1). The machine housing (11) is equipped with a first motor (7), the output end of which is connected to the left end of the lead screw (10). The grinding frame (8) is equipped with a second motor (24), the output end of which is equipped with a grinding wheel (25). The inner wall of the grinding frame (8) is rotatably connected to two rotating shafts (22) through bearings. The ends of the two rotating shafts (22) that are close to each other are connected to the outer surface of the second motor (24). The back of the grinding frame (8) is equipped with a third motor (23), the output end of which is connected to one end of one of the rotating shafts (22).

2. The welding and grinding device for an automobile bumper according to claim 1, characterized in that: The bottom surfaces of the two support plates (1) are fixedly connected to a base (2), and the upper surface of the base (2) is provided with two sets of fixing holes (15).

3. The welding and grinding device for an automobile bumper according to claim 2, characterized in that: The bottom surface of the fixed platform (5) is fixedly connected to two adjusting legs (4). Each adjusting leg (4) has a fixed sleeve (3) slidably connected to its outer surface. The bottom end of each fixed sleeve (3) is connected to the upper surface of the base (2). An electric push rod (16) is installed on the upper surface of the base (2). The output end of the electric push rod (16) is connected to the bottom surface of the fixed platform (5).

4. The welding and grinding device for an automobile bumper according to claim 1, characterized in that: A fixing frame (19) is fixedly connected to the upper surface of the fixing platform (5). A threaded sleeve (26) is fixedly embedded in the upper surface of the fixing frame (19). A fixing screw (20) is connected to the internal thread of the threaded sleeve (26). A limit plate (18) is fixedly connected to the bottom end of the fixing screw (20). A throttle (17) is fixedly connected to the top end of the fixing screw (20).

5. The welding and grinding device for an automobile bumper according to claim 1, characterized in that: The right side of the chassis (11) is hinged with a door (12), and the outer surface of the chassis (11) is provided with a heat dissipation window (14).

6. The welding and grinding device for an automobile bumper according to claim 5, characterized in that: A control switch (13) is installed on the right side of the box door (12). The control switch (13) is electrically connected to the first motor (7), the second motor (24), the third motor (23) and the electric push rod (16) through wires.

Images