A vehicle body frame welding device

Abstract

The utility model discloses a kind of vehicle body framework welding devices, it is related to automobile processing technical field, including bearing base, the bearing base rear end left and right sides are evenly provided with welding equipment, bearing base top center position is fixedly connected with positioning plate, positioning plate top is rotatably connected with adjusting screw rod, adjusting screw rod outer surface is located bearing base front and rear sides and is evenly provided with adjusting frame.This utility model design structure is reasonable, by the aid of external electric wrench drives adjusting screw rod rotation, adjusting screw rod drives adjusting frame to move towards, until adjusting frame drives contact frame to move to with the axial line of vehicle body framework bottom welding support, at this moment, manually sliding contact frame, contact frame moves in adjusting frame under the action of slide rail, until the distance between contact frame is consistent with the distance between vehicle body framework bottom welding support, by the aid of external electric wrench drives fixed nut rotation, fixed nut is limited to contact frame by fixed bolt, with the advantage of being suitable for multiple sizes vehicle body.

Description

Technical Field

[0001] This utility model relates to the field of automotive processing technology, specifically a vehicle body frame welding device. Background Technology

[0002] In automobile manufacturing, sheet metal welding is an important process. The entire welding operation requires the use of a specialized clamping system to quickly load / unload sheet metal parts and effectively fix and position them after loading to ensure welding accuracy. Therefore, the welding clamping system is a very important auxiliary tool, which not only affects the accuracy of the welding processing position and the welding quality, but also affects work efficiency and production costs.

[0003] The current automotive market is characterized by small-batch production, serialization, and diversification. Essentially, each car model has multiple body styles with variations in frame structure. Existing welding equipment is mostly vehicle-specific, making it difficult to place frames from different models in the same location. Furthermore, the current method of connecting the body frame to the welding frame generally uses bolts, requiring the removal of multiple bolts each time the vehicle is assembled or disassembled, thus impacting welding progress. To address these issues, we offer a body frame welding device. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a vehicle body frame welding device.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vehicle body frame welding device, including a support base, welding equipment is provided on both the left and right sides of the rear end of the support base, a positioning plate is fixedly connected to the center of the top of the support base, an adjusting screw is rotatably connected to the top of the positioning plate, an adjusting frame is provided on both the front and rear sides of the support base on the outer surface of the adjusting screw, a contact mechanism is provided on both the left and right sides inside the adjusting frame, a power mechanism is provided inside the adjusting frame between the contact mechanisms, the contact mechanism includes a contact frame, a guide groove is provided on the side wall of the contact frame near the center of the support base, a fixing bolt is fixedly connected to the side wall of the contact frame away from the center of the support base, a fixing nut is engaged on the outer surface of the fixing bolt away from the contact frame, a limit block is slidably connected to the side of the contact frame near the guide groove, a push frame is fixedly connected to the end of the limit block away from the contact frame, a fixing frame is fixedly connected to the side wall of the contact frame on the outer surface of the push frame, and a return spring is sleeved on the outer surface of the push frame between the fixing frame and the limit block.

[0008] Furthermore, the top wall of the positioning plate is rotatably connected to the adjusting screw by setting three positioning blocks. The side wall of the adjusting frame near the center of the bearing base has an adjusting hole that meshes with the outer wall of the adjusting screw. The side wall of the adjusting frame away from the center of the bearing base has a through hole. Both ends of the adjusting screw are provided with screw heads with cross grooves.

[0009] Furthermore, guide rails are fixedly connected to the top walls on both sides of the support base, and the bottom wall of the adjustment frame is provided with a sliding groove that engages with the guide rails.

[0010] Furthermore, the adjustment frame has a slide rail inside that is slidably connected to the bottom of the contact frame, and the fixing bolts extend to the outside of the adjustment frame.

[0011] Furthermore, the side wall of the contact frame is provided with a limiting hole that engages with the limiting block, and the top of the limiting block is provided with an inclined groove.

[0012] Furthermore, the power mechanism includes an electric oil pump control module, which is fixedly connected to the bottom wall at the axial position of the bearing base. Oil pump pipes are connected through the front and rear sides of the electric oil pump control module. An electric hydraulic rod is fixedly connected to the end of the oil pump pipe away from the electric oil pump control module. The electric hydraulic rod is fixedly connected to the inner wall of the adjustment frame. A push plate is fixedly connected between the electric hydraulic rods on the left and right sides of the bearing base. The push plate is in contact with the bottom of the push frame.

[0013] Furthermore, the push frame is L-shaped, and the fixed frame has a sliding hole inside that forms a sliding connection with the push frame.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this vehicle body frame welding device has the following advantages:

[0016] I. This utility model utilizes an external electric wrench to rotate an adjusting screw, which in turn moves an adjusting frame towards the other side until the adjusting frame moves the contact frame to the axis of the welding bracket at the bottom of the vehicle frame. At this point, the contact frame is manually slidable, and it moves within the adjusting frame under the action of the slide rail until the distance between the contact frames matches the spacing of the welding bracket at the bottom of the vehicle frame. The external electric wrench then rotates the fixing nut, which limits the contact frame through the fixing bolt. This solves the problem that most existing welding devices are vehicle-specific, making it difficult to place frames of different vehicle models in the same position. It has the advantage of being applicable to vehicle frames of various sizes.

[0017] II. This utility model inserts a welding bracket at the bottom of the vehicle body frame into a contact frame. The side wall of the welding bracket has a pre-drilled hole for engaging with a limiting block. The limiting block limits the welding bracket under the action of a return spring. After the welding equipment finishes welding the vehicle body frame, the electric oil pump control module drives the electric hydraulic rod through the oil pump pipe. The electric hydraulic rod drives the push plate to move, the push plate drives the push frame to move, and the push frame drives the limiting block away from the welding bracket. At this time, the external transfer mechanism can transfer the welded vehicle body. This solves the problem that the existing vehicle body frame and welding frame are generally fixed with bolts, which requires the removal of multiple bolts each time they are loaded and unloaded. It has the advantage of quick disassembly. Attached Figure Description

[0018] Figure 1 This is a triaxial drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the electric oil pump control module of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjusting lead screw of this utility model;

[0021] Figure 4 This is a schematic diagram of the pusher frame of this utility model.

[0022] In the diagram: 1. Support base; 2. Welding equipment; 3. Positioning plate; 4. Adjusting screw; 5. Adjusting frame; 6. Contact frame; 7. Guide groove; 8. Fixing bolt; 9. Fixing nut; 10. Limiting block; 11. Push frame; 12. Fixing frame; 13. Return spring; 14. Guide rail; 15. Slide rail; 16. Electric oil pump control module; 17. Oil pump pipe; 18. Electric hydraulic rod; 19. Push plate. Detailed Implementation

[0023] 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.

[0024] like Figures 1-4As shown, this utility model provides a technical solution: a vehicle body frame welding device, including a support base 1, welding equipment 2 is provided on both the left and right sides of the rear end of the support base 1, a positioning plate 3 is fixedly connected to the center of the top of the support base 1, an adjusting screw 4 is rotatably connected to the top of the positioning plate 3, and the top wall of the positioning plate 3 is rotatably connected to the adjusting screw 4 by three positioning blocks. The positioning blocks fix the adjusting screw 4. Adjusting frames 5 are provided on the outer surface of the adjusting screw 4 on both the front and rear sides of the support base 1. The side wall of the adjusting frame 5 near the center of the support base 1 has an adjusting hole that engages with the outer wall of the adjusting screw 4, and the side wall of the adjusting frame 5 away from the center of the support base 1 has a through hole. The through hole prevents the adjusting screw 4 from being adjusted. Interference with the side wall, the adjusting screw 4 has screw heads with cross grooves at both ends. The adjusting frame 5 has contact mechanisms on both the left and right sides. A power mechanism is located between the contact mechanisms inside the adjusting frame 5. Each contact mechanism includes a contact frame 6. A slide rail 15 is slidably connected to the bottom of the contact frame 6 inside the adjusting frame 5. A guide groove 7 is provided on the side wall of the contact frame 6 near the center of the support base 1, and the guide groove 7 engages with the slide rail 15. A fixing bolt 8 is fixedly connected to the side wall of the contact frame 6 away from the center of the support base 1. The fixing bolt 8 extends to the outside of the adjusting frame 5, and a fixing nut 9 is engaged on the outer surface of the fixing bolt 8 away from the contact frame 6. The adjusting screw 4 is rotated by an external electric wrench. The adjusting frame 5 is moved towards each other until the adjusting frame 5 moves the contact frame 6 to the axis of the welding bracket at the bottom of the body frame. At this time, the contact frame 6 is manually slid, and the contact frame 6 moves within the adjusting frame 5 under the action of the slide rail 15 until the distance between the contact frames 6 is consistent with the distance between the welding brackets at the bottom of the body frame. The fixing nut 9 is rotated by an external electric wrench. The fixing nut 9 limits the contact frame 6 through the fixing bolt 8. The inside of the contact frame 6 is slidably connected to the limit block 10 near the guide groove 7. The side wall of the contact frame 6 has a limit hole that engages with the limit block 10. The top of the limit block 10 has an inclined groove. The setting of the limit block 10 facilitates the insertion of the welding bracket into the contact frame 6. The side wall of the welding bracket at the bottom of the external body frame has a reserved space for the limit block 10. The insertion hole of the positioning block 10 is engaged. The end of the positioning block 10 away from the contact frame 6 is fixedly connected to the push frame 11. The side wall of the contact frame 6 is fixedly connected to the outer surface of the push frame 11, and the push frame 11 is L-shaped. The fixed frame 12 has a sliding hole that forms a sliding connection with the push frame 11. A return spring 13 is sleeved on the outer surface of the push frame 11 between the fixed frame 12 and the positioning block 10. The top walls of the left and right sides of the bearing base 1 are fixedly connected to the guide rails 14. The bottom wall of the adjusting frame 5 has a sliding groove that engages with the guide rails 14. The power mechanism includes an electric oil pump control module 16, which is fixedly connected to the bottom wall at the axial position of the bearing base 1. Oil pump pipes 17 are connected through the front and rear sides of the electric oil pump control module 16.An electric hydraulic rod 18 is fixedly connected to one end of the oil pump pipe 17 away from the electric oil pump control module 16. The electric hydraulic rod 18 is fixedly connected to the inner wall of the adjusting frame 5. A push plate 19 is fixedly connected between the electric hydraulic rods 18 on both sides of the bearing base 1. The push plate 19 contacts the bottom of the push frame 11. The bottom welding bracket of the car body frame is inserted into the contact frame 6. The side wall of the welding bracket has a reserved insertion hole for engagement with the limit block 10. The limit block 10 limits the welding bracket under the action of the return spring 13. After the welding equipment 2 finishes welding the car body frame, the electric oil pump control module 16 drives the electric hydraulic rod 18 through the oil pump pipe 17. The electric hydraulic rod 18 drives the push plate 19 to move. The push plate 19 drives the push frame 11 to move. The push frame 11 drives the limit block 10 away from the welding bracket. At this time, the external transfer mechanism can transfer the welded car body.

[0025] Working principle: When using this vehicle body frame welding device, an external electric wrench drives the adjusting screw 4 to rotate. The adjusting screw 4 drives the adjusting frame 5 to move towards each other until the adjusting frame 5 moves the contact frame 6 to the axis of the bottom welding bracket of the vehicle body frame. At this time, the contact frame 6 is manually slidable. The contact frame 6 moves within the adjusting frame 5 under the action of the slide rail 15 until the distance between the contact frames 6 is consistent with the distance between the bottom welding brackets of the vehicle body frame. The external electric wrench drives the fixing nut 9 to rotate. The fixing nut 9 limits the contact frame 6 through the fixing bolt 8. Position, insert the bottom welding bracket of the body frame into the contact frame 6. The side wall of the welding bracket has a reserved insertion hole for engaging with the limiting block 10. The limiting block 10 limits the welding bracket under the action of the return spring 13. After the welding equipment 2 finishes welding the body frame, the electric oil pump control module 16 drives the electric hydraulic rod 18 through the oil pump pipe 17. The electric hydraulic rod 18 drives the push plate 19 to move. The push plate 19 drives the push frame 11 to move. The push frame 11 drives the limiting block 10 away from the welding bracket. At this time, the external transfer mechanism can transfer the welded body.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle body frame welding device, comprising a support base (1), characterized in that: Welding equipment (2) is provided on both the left and right sides of the rear end of the bearing base (1). A positioning plate (3) is fixedly connected to the center of the top of the bearing base (1). An adjusting screw (4) is rotatably connected to the top of the positioning plate (3). An adjusting frame (5) is provided on both the front and rear sides of the bearing base (1) on the outer surface of the adjusting screw (4). A contact mechanism is provided on both the left and right sides inside the adjusting frame (5). A power mechanism is provided inside the adjusting frame (5) between the contact mechanisms. The contact mechanism includes a contact frame (6), a guide groove (7) is provided on one side wall of the contact frame (6) near the center of the bearing base (1), a fixing bolt (8) is fixedly connected to one side wall of the contact frame (6) away from the center of the bearing base (1), a fixing nut (9) is engaged on the outer surface of the fixing bolt (8) away from the contact frame (6), a limit block (10) is slidably connected to the inside of the contact frame (6) near the guide groove (7), a push frame (11) is fixedly connected to one end of the limit block (10) away from the contact frame (6), a fixing frame (12) is fixedly connected to the side wall of the contact frame (6) on the outer surface of the push frame (11), and a return spring (13) is sleeved between the fixing frame (12) and the limit block (10) on the outer surface of the push frame (11).

2. The vehicle body frame welding device according to claim 1, characterized in that: The top wall of the positioning plate (3) is rotatably connected to the adjusting screw (4) by setting three positioning blocks. The side wall of the adjusting frame (5) near the center of the bearing base (1) has an adjusting hole that meshes with the outer wall of the adjusting screw (4). The side wall of the adjusting frame (5) away from the center of the bearing base (1) has a through hole. Both ends of the adjusting screw (4) are provided with screw heads with cross grooves.

3. The vehicle body frame welding device according to claim 1, characterized in that: The top walls on both sides of the support base (1) are fixedly connected with guide rails (14), and the bottom wall of the adjustment frame (5) is provided with a sliding groove that engages with the guide rails (14).

4. The vehicle body frame welding device according to claim 1, characterized in that: The adjustment frame (5) has a slide rail (15) inside that is slidably connected to the bottom of the contact frame (6), and the fixing bolt (8) extends to the outside of the adjustment frame (5).

5. The vehicle body frame welding device according to claim 1, characterized in that: The side wall of the contact frame (6) is provided with a limiting hole that engages with the limiting block (10), and the top of the limiting block (10) is provided with an inclined groove.

6. The vehicle body frame welding device according to claim 1, characterized in that: The power mechanism includes an electric oil pump control module (16), which is fixedly connected to the bottom wall of the bearing base (1) at the axial position. The electric oil pump control module (16) is connected to oil pump pipes (17) on both the front and rear sides. An electric hydraulic rod (18) is fixedly connected to the end of the oil pump pipe (17) away from the electric oil pump control module (16). The electric hydraulic rod (18) is fixedly connected to the inner wall of the adjusting frame (5). A push plate (19) is fixedly connected between the electric hydraulic rods (18) on the left and right sides of the bearing base (1). The push plate (19) is in contact with the bottom of the push frame (11).

7. The vehicle body frame welding device according to claim 1, characterized in that: The push frame (11) is L-shaped, and the fixed frame (12) has a sliding hole inside that is slidably connected to the push frame (11).

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