Vehicle frame laser welding equipment

Abstract

The vehicle frame laser welding equipment is applied to the technical field of vehicle frame welding, a fixed chassis of the equipment is tightly connected with a welding platform, the top of a base is connected with a movable lifting frame, and an adjusting nut is further installed on the inner side of the top of the base and located below the movable lifting frame. The top of the movable lifting frame is provided with a lower clamping block through a bolt. The movable clamping rod is also installed on the top of the movable lifting frame and connected with the air cylinder, and a manual screw is arranged in the movable clamping rod. Compared with traditional equipment which is only adaptive to a single type of frame and is poor in universality, the equipment has obvious advantages. All parts can be flexibly adjusted according to different vehicle frame types, the welding and fixing requirements of various vehicle frames are well met, the universality is high, a more efficient and practical solution is provided for vehicle frame welding work, and the convenience and adaptability of welding work are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle frame welding, and in particular to a vehicle frame laser welding device. Background Art

[0002] The frame, as the base of the car, is commonly known as the beam, and is generally composed of two longitudinal beams and several cross beams. It is supported on the wheels through the suspension device, the front axle and the rear axle, and must have sufficient strength and rigidity to withstand the load of the car itself and the impact force transmitted from the wheels. The main function of the frame is to support and connect the various assemblies of the car, ensuring that each assembly is in a relatively precise position, and at the same time it must withstand various loads inside and outside the car. In the processing and manufacturing process of the frame, since it is composed of many parts, it is often necessary to use laser welding technology to connect these parts together to ensure that the frame has the required strength.

[0003] Traditional frame laser welding equipment is often customized for a specific type of frame during the design phase. This means that in actual use, it can only meet the welding and fixing requirements of this type of frame. Once welding processing is required for other types of frames, matching welding and fixing equipment must be customized again. This not only results in higher costs, but also takes a long time to customize the equipment, which is likely to have an adverse impact on the overall progress of the frame welding process and reduce production efficiency. Summary of the invention

[0004] The present invention provides a frame laser welding device, specifically comprising: a fixed chassis; the fixed chassis is fixedly connected to the welding platform, and a movable lifting frame is connected to the top of the fixed chassis; an adjusting nut is connected inside the top of the fixed chassis, and the adjusting nut is located at the bottom of the movable lifting frame; a lower clamping block is connected to the top of the movable lifting frame by bolts, and a cylinder is connected to one side of the movable lifting frame; a movable clamping rod is connected to the top of the movable lifting frame, and the cylinder is connected to the movable clamping rod; a manual screw is connected inside the movable clamping rod, and an upper clamping block is installed at the bottom end of the manual screw, and the upper clamping block is located at the top of the lower clamping block; two movable screws are connected inside the movable clamping rod, and the upper clamping block is connected to the bottom ends of the two movable screws. T-shaped convex strips are provided on both sides of the bottom of the movable lifting frame, and T-shaped grooves are provided on both inner sides of the fixed chassis. The T-shaped convex strips are slidably connected to the T-shaped grooves provided on the fixed chassis, and the movable lifting frame can be adjusted up and down to change the height of the lower clamping block so that the top of the lower clamping block contacts the bottom side of the frame.

[0005] Furthermore, a fixing screw is provided inside the top of the fixed chassis, a slide groove is provided inside the fixing screw, the bottom of the movable lifting frame is slidably connected to the slide groove, the adjusting nut is threadedly connected to the outside of the fixing screw, and the top side of the adjusting nut is in contact with the bottom of the movable lifting frame. The bottom of the movable lifting frame is symmetrically provided with two positioning slots, and the top side of the adjusting nut is surrounded by a positioning plug, which is plugged into the positioning slot provided on the movable lifting frame.

[0006] Furthermore, guide sliding holes are provided at both ends of the top of the fixed chassis, and two vertical guide rods are provided at the bottom of the movable lifting frame. The vertical guide rods are slidably connected to the guide sliding holes provided on the fixed chassis. A spring is mounted on the outside of the vertical guide rod. The top of the spring contacts the fixed chassis, and the bottom of the spring contacts the bottom of the vertical guide rod. By pulling the movable lifting frame upward, the spring is subjected to force in a telescopic state, and the adjusting nut is rotated to adjust the height of the adjusting nut. After the adjusting nut is rotated and adjusted, the movable lifting frame is released, and the movable lifting frame moves downward under the dual influence of gravity and spring thrust, so that the positioning plug is inserted into the positioning slot, which plays a fixing effect on the adjusting nut and prevents the adjusting nut from loosening. The height adjustment effect of the lower clamping block is achieved by adjusting the nut. The movable clamping rod is rotatably connected to the movable lifting frame, the cylinder body of the cylinder is rotatably connected to the movable lifting frame, and the piston rod of the cylinder is rotatably connected to the movable clamping rod.

[0007] Furthermore, a screw hole is provided inside the movable clamping rod, and a manual screw is threadedly connected to the screw hole provided in the movable clamping rod. The bottom end of the manual screw is in the shape of a ball head, and the bottom end of the manual screw is rotatably connected to the top of the upper clamping block. The manual screw is rotated, and the manual screw drives the upper clamping block to move up and down, changing the distance between the upper clamping block and the lower clamping block. The cylinder drives the movable clamping rod to rotate, so that the upper clamping block contacts the top of the frame, thereby clamping and fixing the frame. Two through guide holes are provided inside the movable clamping rod, and the movable screw slides through the through guide holes provided in the movable clamping rod. A fastening nut is threadedly connected to the outside of the movable screw, and the bottom side of the fastening nut contacts the top of the movable clamping rod.

[0008] Furthermore, four movable sliding holes are provided on the top of the upper clamping block, and two sliding blocks are provided at the bottom of the movable screw rod. The sliding blocks are slidably connected to the movable sliding holes provided in the upper clamping block, and the upper clamping block can be rotated and adjusted. The upper clamping block drives the two movable screw rods to move up and down along the through guide holes. After the upper clamping block is adjusted to a suitable angle, the fastening nuts connected to the outside of the two movable screw rods are tightened so that the bottom of the fastening nuts contacts the top of the movable clamping rod, thereby fixing the upper clamping block.

[0009] The present invention provides a frame laser welding device, which has the following beneficial effects:

[0010] In the actual application of the present invention, the sliding cooperation between the T-shaped convex strip and the T-shaped groove can guide the up and down movement of the movable lifting frame. In view of the differences in the bending heights of the frames, we can adjust the movable lifting frame up and down accordingly. The specific operation is to pull the movable lifting frame upward, and the spring will expand and contract due to the force. Then turn the adjusting nut to adjust its height. After the adjusting nut is adjusted into place, release the movable lifting frame, and it will move downward under the combined action of gravity and spring thrust, so that the positioning block is accurately inserted into the positioning slot, and then fix the adjusting nut to prevent it from loosening. In this way, the height adjustment of the lower clamping block is realized, the stability of the height of the lower clamping block is ensured, and the top of the lower clamping block can fit the bottom side of the frame to meet the use requirements of the frame with different bending heights.

[0011] In addition, considering the different thickness of the frame, we can rotate the manual screw, which will drive the upper clamp block to move up and down, thereby changing the distance between the upper clamp block and the lower clamp block. Subsequently, the cylinder drives the movable clamping rod to rotate, so that the upper clamp block contacts the top of the frame, thereby firmly clamping the frame, ensuring the smooth progress of the frame laser welding operation, and can well adapt to the clamping and fixing requirements of frames of different thicknesses. When the upper clamp block moves up and down, the movable screw will guide it to prevent the upper clamp block from rotating. If the inclination of the top of the frame is different, the upper clamp block can also be rotated and adjusted. When adjusting, the upper clamp block will drive the two movable screws to move up and down along the through guide hole. When adjusted to the appropriate angle, tighten the fastening nuts connected to the two movable screws, so that the bottom of the fastening nut is in close contact with the top of the movable clamping rod, thereby fixing the upper clamp block, so that the inclined upper clamp block fits perfectly with the inclined surface of the top side of the frame, meeting the clamping and fixing requirements of different inclinations of the top of the frame, showing strong universal performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0013] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0014] In the attached picture:

[0015] Figure 1 The overall top axis side structure schematic diagram of the present application is shown;

[0016] Figure 2 The overall bottom shaft side structure schematic diagram of the present application is shown;

[0017] Figure 3 A schematic diagram of the connection structure between the fixed chassis and the adjusting nut of the present application is shown;

[0018] Figure 4A schematic diagram of the connection structure between the movable lifting frame and the cylinder of the present application is shown;

[0019] Figure 5 A schematic diagram of the bottom shaft side structure of the movable lifting frame of the present application is shown;

[0020] Figure 6 A schematic diagram of the connection structure of the movable clamping rod, the upper clamping block, the manual screw, the movable screw and the fastening nut of the present application is shown;

[0021] Figure 7 It shows a schematic structural diagram of the upper clamping block of the present application in a rotation adjustment state;

[0022] Figure 8 A schematic diagram of the axial side structure of the movable clamping rod of the present application is shown.

[0023] Reference numerals list

[0024] 1. Fixed chassis; 101. T-shaped groove; 102. Guide slide hole; 103. Fixed screw; 1031. Slide groove;

[0025] 2. Movable lifting frame; 201. T-shaped convex strip; 202. Vertical guide rod; 203. Positioning slot;

[0026] 3. Adjusting nut; 301. Positioning plug;

[0027] 4. Spring;

[0028] 5. Lower clamping block;

[0029] 6. Cylinder;

[0030] 7. Movable clamping rod; 701. Screw hole; 702. Through guide hole;

[0031] 8. Upper clamping block; 801. movable sliding hole;

[0032] 9. Manual screw;

[0033] 10. Movable screw; 1001. Slider;

[0034] 11. Tighten the nuts. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 8 :

[0037] The present invention proposes a vehicle frame laser welding device, comprising: a fixed chassis 1; the fixed chassis 1 is fixedly connected to a welding platform, a movable lifting frame 2 is connected to the top of the fixed chassis 1; an adjusting nut 3 is connected inside the top of the fixed chassis 1, and the adjusting nut 3 is located at the bottom of the movable lifting frame 2; a lower clamping block 5 is connected to the top of the movable lifting frame 2 by bolts, and a cylinder 6 is connected to one side of the movable lifting frame 2; a movable clamping rod 7 is connected to the top of the movable lifting frame 2, and the cylinder 6 is connected to the movable clamping rod 7; a manual screw 9 is connected inside the movable clamping rod 7, and an upper clamping block 8 is installed at the bottom end of the manual screw 9, and the upper clamping block 8 is located at the top of the lower clamping block 5; the movable clamping rod 7 is connected inside Two movable screw rods 10 are connected, and the upper clamping block 8 is connected to the bottom ends of the two movable screw rods 10; T-shaped convex strips 201 are provided on both sides of the bottom of the movable lifting frame 2, and T-shaped grooves 101 are provided on both inner sides of the fixed chassis 1. The T-shaped convex strips 201 are slidably connected to the T-shaped grooves 101 provided on the fixed chassis 1. Through the sliding cooperation between the T-shaped convex strips 201 and the T-shaped grooves 101, the movable lifting frame 2 can be guided to move up and down. According to the different bending heights of the frame, the movable lifting frame 2 can be adjusted up and down, and the height of the lower clamping block 5 can be changed, so that the top of the lower clamping block 5 contacts the bottom side of the frame, which better meets the use requirements of different bending heights of the frame.

[0038] In the embodiment of the present disclosure, a fixing screw 103 is provided inside the top of the fixed chassis 1, a sliding groove 1031 is provided inside the fixing screw 103, the bottom of the movable lifting frame 2 is slidably connected to the sliding groove 1031, the adjusting nut 3 is threadedly connected to the outside of the fixing screw 103, the top side of the adjusting nut 3 is in contact with the bottom of the movable lifting frame 2, the bottom of the movable lifting frame 2 is symmetrically provided with two positioning slots 203, the top side of the adjusting nut 3 is surrounded by a positioning plug 301, the positioning plug 301 is plugged into the positioning slot 203 provided on the movable lifting frame 2, guide sliding holes 102 are provided at both ends of the top of the fixed chassis 1, two vertical guide rods 202 are provided at the bottom of the movable lifting frame 2, the vertical guide rods 202 are slidably connected to the guide sliding holes 102 provided on the fixed chassis 1, and a spring 4 is sleeved on the outside of the vertical guide rod 202, the top of the spring 4 is in contact with the fixed chassis 1, and the bottom of the spring 4 is in contact with the bottom end of the vertical guide rod 202;

[0039] By adopting the above technical solution, when it is necessary to adjust the height of the lower clamping block 5, the movable lifting frame 2 is pulled upward, the spring 4 is stretched under force, the adjusting nut 3 is rotated, and the height of the adjusting nut 3 is adjusted. After the adjusting nut 3 is rotated and adjusted, the movable lifting frame 2 is released, and the movable lifting frame 2 moves downward under the dual influence of gravity and the thrust of the spring 4, so that the positioning block 301 is inserted into the positioning slot 203, which has a fixing effect on the adjusting nut 3 and prevents the adjusting nut 3 from loosening. The height adjustment effect of the lower clamping block 5 is achieved by adjusting the nut 3, thereby ensuring the stability of the height state of the lower clamping block 5.

[0040] In the disclosed embodiment, the movable clamping rod 7 is rotatably connected to the movable lifting frame 2, the cylinder body of the cylinder 6 is rotatably connected to the movable lifting frame 2, the piston rod of the cylinder 6 is rotatably connected to the movable clamping rod 7, a screw hole 701 is provided inside the movable clamping rod 7, the manual screw 9 is threadedly connected to the screw hole 701 provided in the movable clamping rod 7, the bottom end of the manual screw 9 is in a ball head shape, and the bottom end of the manual screw 9 is rotatably connected to the top of the upper clamping block 8;

[0041] By adopting the above technical solution, the manual screw 9 can be rotated according to the different thicknesses of the frame. The manual screw 9 drives the upper clamping block 8 to move up and down, changing the distance between the upper clamping block 8 and the lower clamping block 5. The cylinder 6 drives the movable clamping rod 7 to rotate, so that the upper clamping block 8 contacts the top of the frame, thereby clamping and fixing the frame, ensuring the stability of the frame laser welding operation, and being better suitable for the clamping and fixing of frames of different thicknesses.

[0042] In the embodiment of the present disclosure, two through guide holes 702 are provided inside the movable clamping rod 7, and the movable screw rod 10 slides through the through guide holes 702 provided on the movable clamping rod 7, and the external thread of the movable screw rod 10 is connected with a fastening nut 11, and the bottom side of the fastening nut 11 contacts the top of the movable clamping rod 7, and four movable sliding holes 801 are provided on the top of the upper clamping block 8, and two sliders 1001 are provided at the bottom of the movable screw rod 10, and the sliders 1001 are slidably connected to the movable sliding holes 801 provided on the upper clamping block 8;

[0043] By adopting the above technical solution, during the process of the upper clamping block 8 moving up and down, the movable screw 10 plays a guiding effect on the upper clamping block 8 to prevent the upper clamping block 8 from rotating. The upper clamping block 8 can be rotated and adjusted according to the different inclinations of the top of the frame. The upper clamping block 8 drives the two movable screws 10 to move up and down along the through guide hole 702. After the upper clamping block 8 is adjusted to a suitable angle, the fastening nuts 11 connected to the outside of the two movable screws 10 are tightened so that the bottom of the fastening nuts 11 contacts the top of the movable clamping rod 7, which plays a fixing effect on the upper clamping block 8, so that the inclined upper clamping block 8 is consistent with the inclined surface of the top side of the frame, which better meets the clamping and fixing requirements of the top of the frame with different inclinations, and has strong universal performance.

[0044] A laser welding method for a vehicle frame: first, according to the different bending heights of the vehicle frame, the movable lifting frame 2 is pulled upward, the spring 4 is forced to be in a telescopic state, and the adjusting nut 3 is rotated to adjust the height of the adjusting nut 3. After the adjusting nut 3 is rotated and adjusted, the movable lifting frame 2 is released, and the movable lifting frame 2 moves downward under the dual influence of gravity and the thrust of the spring 4, so that the positioning plug 301 is inserted into the positioning slot 203, which plays a fixing effect on the adjusting nut 3 and prevents the adjusting nut 3 from loosening. The height of the lower clamping block 5 is adjusted by adjusting the nut 3, so that the top of the lower clamping block 5 contacts the bottom side of the frame to meet the requirements of different bending heights of the frame; next, according to the different thicknesses of the frame, the manual screw 9 is rotated, and the manual screw The rod 9 drives the upper clamping block 8 to move up and down, changing the spacing distance between the upper clamping block 8 and the lower clamping block 5, and the cylinder 6 drives the movable clamping rod 7 to rotate, so that the upper clamping block 8 contacts the top of the frame, thereby clamping and fixing the frame; when the top of the frame to be laser welded is inclined, the upper clamping block 8 is rotated and adjusted, and the upper clamping block 8 drives the two movable screws 10 to move up and down along the through guide hole 702. After the upper clamping block 8 is adjusted to a suitable angle, the fastening nuts 11 connected to the outside of the two movable screws 10 are tightened, so that the bottom of the fastening nuts 11 contacts the top of the movable clamping rod 7, thereby fixing the upper clamping block 8, so that the inclined upper clamping block 8 is consistent with the inclined surface of the top side of the frame, meeting the clamping and fixing requirements of the frame top with different inclinations.

Claims

1. A frame laser welding device, characterized in that: include: A fixed chassis (1); the fixed chassis (1) is fixedly connected to the welding platform, and a movable lifting frame (2) is connected to the top of the fixed chassis (1); an adjusting nut (3) is connected inside the top of the fixed chassis (1), and the adjusting nut (3) is located at the bottom of the movable lifting frame (2); a lower clamping block (5) is connected to the top of the movable lifting frame (2) by bolts, and a cylinder (6) is connected to one side of the movable lifting frame (2); a movable clamping rod (7) is connected to the top of the movable lifting frame (2), and the cylinder (6) is connected to the movable clamping rod (7); a manual screw rod (9) is connected inside the movable clamping rod (7), and an upper clamping block (8) is installed at the bottom end of the manual screw rod (9), and the upper clamping block (8) is located at the top of the lower clamping block (5); two movable screw rods (10) are connected inside the movable clamping rod (7), and the upper clamping block (8) is connected to the bottom ends of the two movable screw rods (10); The movable lifting frame (2) is provided with T-shaped convex strips (201) on both sides of the bottom, and the fixed chassis (1) is provided with T-shaped grooves (101) on both inner sides. The T-shaped convex strips (201) are slidably connected in the T-shaped grooves (101) provided on the fixed chassis (1).

2. A vehicle frame laser welding device according to claim 1, characterized in that: The top of the fixed chassis (1) is provided with a fixed screw (103), a slide groove (1031) is provided in the fixed screw (103), the bottom of the movable lifting frame (2) is slidably connected in the slide groove (1031), the adjusting nut (3) is threadedly connected to the outside of the fixed screw (103), and the top side of the adjusting nut (3) is in contact with the bottom of the movable lifting frame (2); The bottom of the movable lifting frame (2) is symmetrically provided with two positioning slots (203), the top side of the adjusting nut (3) is surrounded by a positioning plug (301), and the positioning plug (301) is inserted into the positioning slots (203) provided on the movable lifting frame (2).

3. The frame laser welding equipment according to claim 1, characterized in that: The fixed chassis (1) is provided with guide sliding holes (102) at both ends of the top, and the movable lifting frame (2) is provided with two vertical guide rods (202) at the bottom. The vertical guide rods (202) are slidably connected to the guide sliding holes (102) provided on the fixed chassis (1). A spring (4) is sleeved on the outside of the vertical guide rods (202). The top of the spring (4) is in contact with the fixed chassis (1), and the bottom of the spring (4) is in contact with the bottom end of the vertical guide rod (202). The movable clamping rod (7) is rotatably connected to the movable lifting frame (2), the cylinder body of the cylinder (6) is rotatably connected to the movable lifting frame (2), and the piston rod of the cylinder (6) is rotatably connected to the movable clamping rod (7).

4. The frame laser welding equipment according to claim 1, characterized in that: The movable clamping rod (7) is provided with a screw hole (701) inside, and the manual screw rod (9) is threadedly connected to the screw hole (701) provided in the movable clamping rod (7). The bottom end of the manual screw rod (9) is in the shape of a ball head, and the bottom end of the manual screw rod (9) is rotatably connected to the top of the upper clamping block (8); The movable clamping rod (7) is provided with two through guide holes (702) inside, and the movable screw rod (10) slides through the through guide holes (702) provided in the movable clamping rod (7). The external thread of the movable screw rod (10) is connected with a fastening nut (11), and the bottom side of the fastening nut (11) is in contact with the top of the movable clamping rod (7).

5. The frame laser welding equipment according to claim 1, characterized in that: The top of the upper clamping block (8) is provided with four movable sliding holes (801), and the bottom of the movable screw rod (10) is provided with two sliding blocks (1001), and the sliding blocks (1001) are slidably connected to the movable sliding holes (801) provided on the upper clamping block (8).

Images