A lightweight and high-strength frame assembly welding method and welding device

Abstract

The present invention relates to the field of frame assembly welding, and specifically to a lightweight and high-strength frame assembly welding method and welding device, including a welding manipulator and a mechanical arm on a welding production line, wherein a holding component is fixedly installed at one end of the mechanical arm, and the holding component includes a pressure plate fixedly installed at one end of the mechanical arm, and a T-shaped bar is fixedly installed on the upper surface of the pressure plate. In the present invention, by pressing the pressure plate on the upper surface of the longitudinal beam, a mobile component is made to fit the longitudinal beam, and the position of the longitudinal beam installation hole groove is detected by the detection component, and the first crossbeam is controlled to be inserted, and then the remaining mobile components are separated from the first mobile component, and the above operation is repeated, so that the detection component adapts to the curve change of the longitudinal beam to quickly install multiple crossbeams to different positions, so that it can adapt to the installation of crossbeams of different frame assemblies, speed up the installation rate of the crossbeams, and reduce the safety hazards of artificially holding multiple crossbeams, and speed up the subsequent welding rate between the crossbeams and the longitudinal beams.

Description

Technical Field

[0001] The invention relates to the technical field of frame assembly welding, and in particular to a lightweight and high-strength frame assembly welding method and a welding device. Background Art

[0002] Frame assembly welding is an important part of the automobile manufacturing process. It involves the strength, stability and safety of the frame. In the early stages of frame manufacturing, various components such as longitudinal beams, cross beams, connecting plates, etc. need to be assembled into larger components or sub-components through welding, and then several parts and assemblies are welded together to form a frame assembly.

[0003] The existing frame assembly is usually welded by a welding robot during production. When the crossbeam and the longitudinal beam are welded into a whole, the robot arm places the longitudinal beam into the clamping mechanism of the production line, fixes the longitudinal beam through the clamping mechanism, and then the operator manually inserts multiple crossbeams into the reserved holes of the longitudinal beam. In order to save time, the operator often holds multiple crossbeams for installation at the same time, and then welds the connection between the crossbeam and the longitudinal beam through the welding robot;

[0004] The number of crossbeams to be installed varies according to the type of vehicle, and the production line may produce different types of vehicles alternately. When a vehicle type requires a large number of crossbeams, it is not convenient for operators to install all the crossbeams at the same time, which will reduce the installation rate of the crossbeams and affect the subsequent welding process between the crossbeams and longitudinal beams. Holding multiple crossbeams at the same time will also cause the crossbeams to be held loosely, and the crossbeams may fall and easily hit the operator's feet, posing a certain safety hazard. In addition, operators usually install the crossbeams after the longitudinal beams are fixed by the clamping mechanism, which will also affect the subsequent welding rate between the crossbeams and longitudinal beams. Summary of the invention

[0005] The object of the present invention is to provide a lightweight and high-strength frame assembly welding method and welding device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A lightweight and high-strength frame assembly welding device comprises a welding manipulator and a manipulator arm on a welding production line, wherein one end of the manipulator arm is fixedly installed with a holding component, and the holding component comprises a pressing plate fixedly installed at one end of the manipulator arm, and the upper surface of the pressing plate is fixedly installed with a T-shaped bar, and a plurality of sliding frames are provided on the outer sliding sleeve of the T-shaped bar, and a plurality of No. 1 reinforcement rods are fixedly installed on one side surface of the sliding frame, and a plurality of moving components are movably provided on one end of the No. 1 reinforcement rod, and the moving component comprises an installation frame, and a connecting component is fixedly connected to the upper surface of the installation frame, and the connecting component comprises a plurality of step rods fixedly installed on the upper surface of the installation frame, a swivel is rotatably connected to the outer side of one of the step rods, and two telescopic plates are fixedly installed on the outer surface of the swivel, and a transmission frame is slidably connected between the two telescopic plates, and one end of the telescopic plate is movably provided with a U-shaped hollow ring, a pushing component is fixedly installed on the lower surface of the installation frame, and a detection component is fixedly installed on one end of the installation frame.

[0008] Furthermore, a No. 1 toothed plate is fixedly mounted on one side surface of the T-shaped bar, a No. 1 gear is rotatably connected inside the sliding frame and movably meshes with the No. 1 toothed plate, a No. 1 motor is fixedly mounted on one side surface of the sliding frame, an output end of the No. 1 motor is fixedly connected to the No. 1 gear, and a plurality of No. 1 rollers that are symmetrically mounted on the inner surface of the sliding frame and are in rolling engagement with the T-shaped bar.

[0009] Furthermore, the upper surfaces of the plurality of installation frames are respectively provided with slide grooves of different lengths, one end of the No. 1 reinforcement rod slides through the adjacent slide groove, and the other end surface of the installation frame is provided with a plurality of No. 2 rollers.

[0010] Furthermore, a No. 3 cylinder is fixedly installed on one side surface of the installation frame, the output end of the No. 3 cylinder is fixedly connected to the transmission frame, and No. 2 tooth plates are symmetrically fixedly installed at both ends of the two side surfaces of the transmission frame, and one end of two adjacent telescopic plates is fixedly connected to a rotating rod, and the rotating rod slides through the U-shaped hollow ring.

[0011] Preferably: a gear ring is fixedly installed on the outer surface of the rotating ring, an incomplete gear ring is fixedly installed on the outer surface of the U-shaped hollow ring, a plurality of No. 2 gear plates are respectively movably meshed with adjacent gear rings and incomplete gear rings, a No. 2 cylinder is fixedly installed on the upper surface of the telescopic plate located above, and the output end of the No. 2 cylinder is fixedly connected to one end of the telescopic plate.

[0012] Furthermore, the detection assembly includes a support frame fixedly installed at one end of the upper surface of the installation frame, a No. 1 cylinder is fixedly embedded and installed on the upper surface of the support frame, a No. 1 fixed frame is fixedly installed on the output end of the No. 1 cylinder, a sliding sleeve that penetrates the support frame is slidably connected to the outer side of the No. 1 cylinder, the lower end of the sliding sleeve is fixedly connected to the No. 1 fixed frame, and a No. 2 reinforcement rod fixedly connected to the No. 1 fixed frame is fixedly installed on the outer side of the sliding sleeve.

[0013] Preferably: the No. 1 fixed frame is rotatably connected to the inside thereof, a slotted square tube movably provided on the outside of the No. 1 screw rod and slidingly fitted with the No. 1 fixed frame, a No. 1 threaded sleeve screwed together with the No. 1 screw rod is fixedly installed at one end of the slotted square tube, a detection head is fixedly installed at one end of the slotted square tube, a pressure sensor is provided inside the detection head, a No. 2 motor is fixedly installed on the surface of one end of the No. 1 fixed frame, and the output end of the No. 2 motor is fixedly connected to the No. 1 screw rod.

[0014] Furthermore, the pushing assembly includes a No. 2 fixed frame fixedly installed on the lower surface of the installation frame, a No. 2 screw rod is rotatably connected inside the No. 2 fixed frame, a No. 3 motor is fixedly installed on one end surface of the No. 2 fixed frame, an output end of the No. 3 motor is fixedly connected to the No. 2 screw rod, and a No. 2 threaded sleeve is screwed and connected to the outer side of the No. 2 screw rod and slides with the No. 2 fixed frame.

[0015] Preferably: a connecting seat is fixedly installed on one side surface of the No. 2 threaded sleeve, a push plate is rotatably connected inside the connecting seat, a coil spring is fixedly installed on one side surface of the connecting seat, one end of the coil spring is fixedly connected to one end of the push plate, and a limiting plate is fixedly installed on the inner surface of the connecting seat.

[0016] The present invention also provides a welding method for a lightweight and high-strength frame assembly welding device, and the welding method specifically comprises the following steps:

[0017] Step 1: First, insert the crossbeam into the installation frame, extend the No. 1 cylinder to move the No. 1 fixed frame downward, and move the sliding sleeve and the No. 2 reinforcement rod downward synchronously to increase the stability of the No. 1 fixed frame. The No. 2 motor runs to drive the No. 1 screw rod to rotate. Through the screwing of the No. 1 threaded sleeve and the No. 1 screw rod, and then through the sliding limit of the slotted square tube and the No. 1 fixed frame, the slotted square tube is made to penetrate into the crossbeam, so that the detection head can easily resist the longitudinal beam;

[0018] Step 2: The robot arm places the pressing component on the surface of the longitudinal beam fixed by the clamping mechanism of the production line, so that the pressing plate fits the longitudinal beam, the detection head moves against the longitudinal beam, the No. 1 motor runs, and the No. 1 gear and the No. 1 tooth plate are meshed to make the sliding frame slide along the T-bar to adjust the positions of multiple moving components;

[0019] Step 3: When the first detection head moves to the reserved hole groove of the longitudinal beam, the pressure sensor inside it does not detect the pressure value, and it is judged that the moving component moves to the installation position, and the No. 3 motor is controlled to operate, driving the No. 2 screw rod to rotate, and through the screw engagement with the No. 2 threaded sleeve, the push plate pushes the cross beam to move inside the installation frame, and inserts it into the installation hole groove of the longitudinal beam;

[0020] Step 4: When the first detection head moves to the reserved hole groove of the longitudinal beam, cylinder No. 3 and cylinder No. 2 operate at the same time, and cylinder No. 3 pushes the transmission frame to move, and through the transmission of the gear ring and the incomplete gear ring and the No. 2 gear plate, the swivel and the U-shaped hollow ring rotate, and the swivel drives the telescopic plate to rotate, and shrinks under the action of cylinder No. 2. Under the sliding limit of the No. 1 reinforcement rod and the slide groove, the U-shaped hollow ring pushes the step rod to move, so that the installation frame moves, and at the same time, the opening direction of the U-shaped hollow ring also rotates, so that the step rod connected to it can move horizontally, so that the installation frame can be separated and moved, and the operation is repeated to install multiple beams.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The No. 1 fixed frame is moved downward by extending the No. 1 cylinder, and the No. 2 motor is running to drive the No. 1 screw to rotate. The No. 1 threaded sleeve and the No. 1 screw are screwed together, and the slotted square tube and the No. 1 fixed frame are limited by sliding, so that the slotted square tube penetrates into the interior of the crossbeam, so that the detection head can easily support the longitudinal beam, thereby facilitating automatic detection of the position of the reserved hole groove of the longitudinal beam, and automatically installing the crossbeam into the reserved hole groove at different positions. The No. 1 motor is running to make the sliding frame slide along the T-bar to adjust the position of multiple moving components.

[0023] 2. Control the operation of motor No. 3 to drive the No. 2 screw to rotate. Through the screw engagement with the No. 2 threaded sleeve, the push plate pushes the beam to move inside the installation frame and inserts it into the installation hole groove of the longitudinal beam to replace the manual installation of the beam. During the previous processing step, the beam is installed inside the installation frame to reduce the safety hazards of manually holding multiple beams and speed up the subsequent welding rate between the beams and the longitudinal beams.

[0024] 3. Cylinder No. 3 and cylinder No. 2 operate at the same time. Cylinder No. 3 pushes the transmission frame to move, causing the swivel and U-shaped hollow ring to rotate. The swivel drives the telescopic plate to rotate and shrinks under the action of cylinder No. 2. Under the sliding limit of reinforcement rod No. 1 and slide groove, the U-shaped hollow ring pushes the step rod to move, causing the installation frame to move. At the same time, the opening direction of the U-shaped hollow ring also rotates to facilitate the horizontal movement of the step rod connected to it, so that the installation frame can be separated and moved. By separating the remaining moving components from the first moving component and repeating the above operation, the detection head can adapt to the curve changes of the longitudinal beam, and multiple beams can be quickly installed at different positions to adapt to the installation of beams of different frame assemblies, thereby accelerating the installation rate of the beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the pressing and holding component and the moving component in the present invention;

[0027] Figure 3 It is a schematic diagram of the vertical cross-section structure of the moving component and the pressing component in the present invention;

[0028] Figure 4 It is a schematic diagram of the side cross-section structure of the sliding frame in the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the installation frame and the connection components in the present invention;

[0030] Figure 6 It is a schematic diagram of the disassembled structure of the installation frame and the connection components in the present invention;

[0031] Figure 7 It is a schematic diagram of the vertical cross-section structure of the installation frame and the driving component part in the present invention;

[0032] Figure 8 It is a schematic diagram of the side cross-sectional structure of the connecting assembly and the transmission frame part in the present invention;

[0033] Fig. 9 It is a schematic diagram of the vertical cross-sectional structure of part of the detection component in the present invention.

[0034] In the figure: 1. welding manipulator; 101. mechanical arm; 2. holding assembly; 201. pressing plate; 202. T-bar; 203. No. 1 tooth plate; 204. sliding frame; 205. No. 1 gear; 206. No. 1 motor; 207. No. 1 roller; 208. No. 1 reinforcement rod; 3. moving assembly; 301. mounting frame; 302. slide; 303. No. 2 roller; 4. detection assembly; 401. support frame; 402. No. 1 cylinder; 403. No. 1 fixed frame; 404. No. 1 screw rod; 405. slotted square tube; 406. No. 1 threaded sleeve; 407. Detection head; 408, sliding sleeve; 409, No. 2 reinforcement rod; 5, pushing assembly; 501, No. 2 fixing frame; 502, No. 2 lead screw; 503, No. 2 threaded sleeve; 504, connecting seat; 505, push plate; 506, coil spring; 507, limit plate; 508, No. 3 motor; 6, connecting assembly; 601, step rod; 602, swivel; 603, gear ring; 604, telescopic plate; 605, swivel rod; 606, No. 2 cylinder; 7, transmission frame; 701, No. 2 gear plate; 702, U-shaped hollow ring; 703, incomplete gear ring; 704, No. 3 cylinder. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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] See also Figures 1 to 9 In an embodiment of the present invention, a lightweight and high-strength frame assembly welding device includes a welding robot 1 and a robot arm 101 on a welding production line, a holding assembly 2 is fixedly installed at one end of the robot arm 101, and the holding assembly 2 includes a pressing plate 201 fixedly installed at one end of the robot arm 101, a T-shaped bar 202 is fixedly installed on the upper surface of the pressing plate 201, and a plurality of sliding frames 204 are provided on the outer sliding sleeve of the T-shaped bar 202, and a plurality of No. 1 reinforcement rods 208 are fixedly installed on one side surface of the sliding frame 204, and a plurality of moving assemblies 3 are movably provided at one end of the No. 1 reinforcement rod 208, and the moving assembly 3 is provided on the one end of the moving assembly 3. Component 3 includes an installation frame 301, and a connecting component 6 is fixedly connected to the upper surface of the installation frame 301. The connecting component 6 includes a plurality of step rods 601 fixedly installed on the upper surface of the installation frame 301. A swivel 602 is rotatably connected to the outer side of a step rod 601. Two telescopic plates 604 are fixedly installed on the outer surface of the swivel 602. A transmission frame 7 is slidably connected between the two telescopic plates 604. A U-shaped hollow ring 702 is movably provided at one end of the telescopic plate 604. A pushing component 5 is fixedly installed on the lower surface of the installation frame 301, and a detection component 4 is fixedly installed at one end of the installation frame 301.

[0037] Specifically, the crossbeam is first inserted into the installation frame 301, the detection head 407 is moved down and inserted into the crossbeam, and then the crossbeam is inserted into the reserved hole groove of the longitudinal beam by pushing the component 5, and the connection and separation of multiple installation frames 301 are controlled by the connecting component 6, so that multiple crossbeams can be installed individually and simultaneously.

[0038] Embodiment 1

[0039] like Figure 3 and Figure 4 As shown, in the present embodiment, a tooth plate 203 is fixedly mounted on one side surface of the T-shaped bar 202, a gear plate 205 movably meshed with the tooth plate 203 is rotatably connected inside the sliding frame 204, a motor 206 is fixedly mounted on one side surface of the sliding frame 204, an output end of the motor 206 is fixedly connected to the gear plate 205, a plurality of rollers 207 symmetrically mounted on the inner surface of the sliding frame 204 that are in rolling engagement with the T-shaped bar 202; grooves 302 of different lengths are respectively provided on the upper surfaces of the plurality of mounting frames 301, one end of the reinforcement rod 208 slides through the adjacent grooves 302, and a plurality of rollers 303 are mounted on the other end surface of the mounting frame 301.

[0040] In this embodiment, the robot arm 101 places the holding component 2 on the surface of the longitudinal beam fixed by the clamping mechanism of the production line, so that the pressure plate 201 fits the longitudinal beam, the detection head 407 moves to resist the longitudinal beam, and the No. 1 motor 206 runs. Through the meshing transmission of the No. 1 gear 205 and the No. 1 tooth plate 203, the sliding frame 204 slides along the T-bar 202, and the positions of multiple moving components 3 are adjusted. The No. 1 roller 207 and the No. 2 roller 303 reduce the friction when the installation frame 301 moves.

[0041] like Figure 3 and Fig. 9 As shown, in this embodiment, the detection component 4 includes a support frame 401 fixedly installed at one end of the upper surface of the installation frame 301, a No. 1 cylinder 402 is fixedly embedded and installed on the upper surface of the support frame 401, a No. 1 fixed frame 403 is fixedly installed on the output end of the No. 1 cylinder 402, a sliding sleeve 408 that penetrates the support frame 401 is slidably connected to the outer side of the No. 1 cylinder 402, the lower end of the sliding sleeve 408 is fixedly connected to the No. 1 fixed frame 403, and a No. 2 reinforcement rod 409 that is fixedly connected to the No. 1 fixed frame 403 is fixedly installed on the outer side of the sliding sleeve 408 A screw rod 404 is rotatably connected to the inside of the No. 1 fixed frame 403, and a slotted square tube 405 is movably provided on the outside of the No. 1 screw rod 404, and a No. 1 threaded sleeve 406 that is screwed together with the No. 1 screw rod 404 is fixedly installed at one end of the slotted square tube 405, and a detection head 407 is fixedly installed at one end of the slotted square tube 405, and a pressure sensor is provided inside the detection head 407, and a No. 2 motor is fixedly installed on the surface of one end of the No. 1 fixed frame 403, and the output end of the No. 2 motor is fixedly connected to the No. 1 screw rod 404.

[0042] During specific implementation, the No. 1 cylinder 402 extends to move the No. 1 fixed frame 403 downward, and the sliding sleeve 408 and the No. 2 reinforcement rod 409 move downward synchronously to increase the stability of the No. 1 fixed frame 403. The No. 2 motor runs to drive the No. 1 screw rod 404 to rotate, and through the screwing of the No. 1 threaded sleeve 406 and the No. 1 screw rod 404, and then through the sliding limit of the slotted square tube 405 and the No. 1 fixed frame 403, the slotted square tube 405 is extended into the interior of the beam, so that the detection head 407 can easily resist the longitudinal beam, thereby facilitating the automatic detection of the position of the reserved hole groove of the longitudinal beam, and automatically installing the beam into the reserved hole grooves at different positions.

[0043] like Figure 2 and Figure 7As shown, in the present embodiment, the pushing assembly 5 comprises a No. 2 fixed frame 501 fixedly mounted on the lower surface of the mounting frame 301, a No. 2 screw rod 502 is rotatably connected inside the No. 2 fixed frame 501, a No. 3 motor 508 is fixedly mounted on the surface of one end of the No. 2 fixed frame 501, the output end of the No. 3 motor 508 is fixedly connected to the No. 2 screw rod 502, the outer side of the No. 2 screw rod 502 is screwed and connected to a No. 2 threaded sleeve 503 that slides with the No. 2 fixed frame 501; a connecting seat 504 is fixedly mounted on the surface of one side of the No. 2 threaded sleeve 503, a push plate 505 is rotatably connected inside the connecting seat 504, a coil spring 506 is fixedly mounted on the surface of one side of the connecting seat 504, one end of the coil spring 506 is fixedly connected to one end of the push plate 505, and a limiting plate 507 is fixedly mounted on the inner surface of the connecting seat 504.

[0044] During specific implementation, when the first detection head 407 moves to the reserved hole groove of the longitudinal beam, the pressure sensor inside it does not detect a pressure value, and it is judged that the moving component 3 moves to the installation position, and the No. 3 motor 508 is controlled to operate, driving the No. 2 screw rod 502 to rotate. Through the screwing with the No. 2 threaded sleeve 503, the limit plate 507 makes the push plate 505 only rotate to a vertical state under the pull of the coil spring 506. The push plate 505 pushes the beam to move inside the installation frame 301 and inserts it into the installation hole groove of the longitudinal beam, replacing the manual installation of the beam. During the previous processing step, the beam is installed inside the installation frame 301, reducing the safety hazards of manually holding multiple beams and speeding up the subsequent welding rate between the beams and the longitudinal beams.

[0045] like Figure 5-8 As shown, in this embodiment, a No. 3 cylinder 704 is fixedly installed on the surface of one side of the installation frame 301, and the output end of the No. 3 cylinder 704 is fixedly connected to the transmission frame 7, and No. 2 tooth plates 701 are symmetrically fixedly installed at both ends of the two side surfaces of the transmission frame 7, and one end of two adjacent telescopic plates 604 is fixedly connected to a rotating rod 605, and the rotating rod 605 slides through the U-shaped hollow ring 702; a gear ring 603 is fixedly installed on the outer surface of the rotating ring 602, and an incomplete gear ring 703 is fixedly installed on the outer surface of the U-shaped hollow ring 702, and a plurality of No. 2 tooth plates 701 are respectively movably meshed with adjacent gear rings 603 and incomplete gear rings 703, and a No. 2 cylinder 606 is fixedly installed on the upper surface of the telescopic plate 604 located above, and the output end of the No. 2 cylinder 606 is fixedly connected to one end of the telescopic plate 604.

[0046] In the specific implementation, when the first detection head 407 moves to the reserved hole groove of the longitudinal beam, the No. 3 cylinder 704 and the No. 2 cylinder 606 operate at the same time, and the No. 3 cylinder 704 pushes the transmission frame 7 to move, and the swivel 602 and the U-shaped hollow ring 702 are rotated through the transmission of the ring gear 603 and the incomplete ring gear 703 and the No. 2 gear plate 701, and the swivel 602 drives the telescopic plate 604 to rotate and shrink under the action of the No. 2 cylinder 606. Under the sliding limit of the No. 1 reinforcement rod 208 and the slide groove 302, the U-shaped The hollow ring 702 pushes the step rod 601 to move, so that the installation frame 301 moves. At the same time, the opening direction of the U-shaped hollow ring 702 also rotates, so that the step rod 601 connected thereto can move horizontally, so that the installation frame 301 can be separated and moved, thereby separating the remaining moving components 3 from the first moving component 3 and repeating the above operation, so that the detection head 407 can adapt to the curve changes of the longitudinal beam, and multiple beams can be quickly installed at different positions, so that it can adapt to the installation of beams of different frame assemblies, thereby accelerating the installation rate of the beams.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lightweight and high-strength frame assembly welding device, comprising a welding manipulator (1) and a mechanical arm (101) on a welding production line, characterized in that: A holding component (2) is fixedly mounted on one end of the mechanical arm (101), the holding component (2) comprising a pressing plate (201) fixedly mounted on one end of the mechanical arm (101), a T-shaped bar (202) being fixedly mounted on the upper surface of the pressing plate (201), a plurality of sliding frames (204) being provided on the outer sliding sleeve of the T-shaped bar (202), a plurality of No. 1 reinforcement rods (208) being fixedly mounted on one side surface of the sliding frame (204), a plurality of movable components (3) being movably mounted on one end of the No. 1 reinforcement rod (208), the movable components (3) comprising a mounting frame (301), a plurality of movable components (3) being provided on the upper surface of the mounting frame (301) A connecting assembly (6) is connected, the connecting assembly (6) comprising a plurality of step rods (601) fixedly mounted on the upper surface of the mounting frame (301), a rotating ring (602) being rotatably connected to the outer side of one of the step rods (601), two telescopic plates (604) being fixedly mounted on the outer surface of the rotating ring (602), a transmission frame (7) being slidably connected between the two telescopic plates (604), a U-shaped hollow ring (702) being movably provided at one end of the telescopic plate (604), a pushing assembly (5) being fixedly mounted on the lower surface of the mounting frame (301), and a detection assembly (4) being fixedly mounted at one end of the mounting frame (301).

2. A lightweight and high-strength frame assembly welding device according to claim 1, characterized in that: A first toothed plate (203) is fixedly mounted on one side surface of the T-shaped bar (202); a first gear (205) movably meshed with the first toothed plate (203) is rotatably connected inside the sliding frame (204); a first motor (206) is fixedly mounted on one side surface of the sliding frame (204); an output end of the first motor (206) is fixedly connected to the first gear (205); and a plurality of first rollers (207) rollingly engaged with the T-shaped bar (202) are symmetrically mounted on the inner surface of the sliding frame (204).

3. A lightweight and high-strength frame assembly welding device according to claim 2, characterized in that: The upper surfaces of the plurality of installation frames (301) are respectively provided with slide grooves (302) of different lengths, one end of the first reinforcement rod (208) slides through an adjacent slide groove (302), and the other end surface of the installation frame (301) is provided with a plurality of second rollers (303).

4. A lightweight and high-strength frame assembly welding device according to claim 3, characterized in that: A No. 3 cylinder (704) is fixedly mounted on a surface of one side of the mounting frame (301); an output end of the No. 3 cylinder (704) is fixedly connected to a transmission frame (7); No. 2 toothed plates (701) are symmetrically fixedly mounted at both ends of the surfaces of both sides of the transmission frame (7); a rotating rod (605) is fixedly connected to one end of two adjacent telescopic plates (604); and the rotating rod (605) slides through the U-shaped hollow ring (702).

5. A lightweight and high-strength frame assembly welding device according to claim 4, characterized in that: A gear ring (603) is fixedly mounted on the outer surface of the rotating ring (602), an incomplete gear ring (703) is fixedly mounted on the outer surface of the U-shaped hollow ring (702), a plurality of No. 2 gear plates (701) are movably meshed with adjacent gear rings (603) and incomplete gear rings (703), respectively, a No. 2 cylinder (606) is fixedly mounted on the upper surface of the telescopic plate (604) located above, and an output end of the No. 2 cylinder (606) is fixedly connected to one end of the telescopic plate (604).

6. A lightweight and high-strength frame assembly welding device according to claim 5, characterized in that: The detection assembly (4) comprises a support frame (401) fixedly mounted at one end of the upper surface of the mounting frame (301); a No. 1 cylinder (402) is fixedly embedded and mounted on the upper surface of the support frame (401); a No. 1 fixing frame (403) is fixedly mounted on the output end of the No. 1 cylinder (402); a sliding sleeve (408) penetrating the support frame (401) is slidably connected to the outer side of the No. 1 cylinder (402); a lower end of the sliding sleeve (408) is fixedly connected to the No. 1 fixing frame (403); and a No. 2 reinforcing rod (409) fixedly connected to the No. 1 fixing frame (403) is fixedly mounted on the outer side of the sliding sleeve (408).

7. A lightweight and high-strength frame assembly welding device according to claim 6, characterized in that: The No. 1 fixed frame (403) is rotatably connected to a No. 1 screw rod (404) inside, and a slotted square tube (405) is movably provided on the outside of the No. 1 screw rod (404) and is slidably fitted with the No. 1 fixed frame (403). A No. 1 threaded sleeve (406) screwed to the No. 1 screw rod (404) is fixedly installed on one end of the slotted square tube (405). A detection head (407) is fixedly installed on one end of the slotted square tube (405), and a pressure sensor is provided inside the detection head (407). A No. 2 motor is fixedly installed on the surface of one end of the No. 1 fixed frame (403), and the output end of the No. 2 motor is fixedly connected to the No. 1 screw rod (404).

8. A lightweight and high-strength frame assembly welding device according to claim 7, characterized in that: The pushing assembly (5) comprises a No. 2 fixing frame (501) fixedly mounted on the lower surface of the mounting frame (301); a No. 2 screw rod (502) is rotatably connected inside the No. 2 fixing frame (501); a No. 3 motor (508) is fixedly mounted on one end surface of the No. 2 fixing frame (501); an output end of the No. 3 motor (508) is fixedly connected to the No. 2 screw rod (502); and a No. 2 threaded sleeve (503) is screwedly connected to the outer side of the No. 2 screw rod (502) and is slidable with the No. 2 fixing frame (501).

9. A lightweight and high-strength frame assembly welding device according to claim 8, characterized in that: A connecting seat (504) is fixedly mounted on one side surface of the No. 2 threaded sleeve (503), a push plate (505) is rotatably connected inside the connecting seat (504), a coil spring (506) is fixedly mounted on one side surface of the connecting seat (504), one end of the coil spring (506) is fixedly connected to one end of the push plate (505), and a limiting plate (507) is fixedly mounted on the inner side surface of the connecting seat (504).

10. The welding method of a lightweight and high-strength frame assembly welding device according to claim 9, characterized in that: The method specifically comprises the following steps: Step 1: first insert the crossbeam into the installation frame (301), the No. 1 cylinder (402) extends, so that the No. 1 fixed frame (403) moves downward, the sliding sleeve (408) and the No. 2 reinforcement rod (409) move downward synchronously, and the stability of the No. 1 fixed frame (403) is increased. The No. 2 motor is operated to drive the No. 1 screw rod (404) to rotate, and the No. 1 threaded sleeve (406) and the No. 1 screw rod (404) are screwed together, and then the slotted square tube (405) and the No. 1 fixed frame (403) are slidably limited, so that the slotted square tube (405) penetrates into the crossbeam, so that the detection head (407) can easily abut against the longitudinal beam; Step 2: The robot arm (101) places the pressing component (2) on the surface of the longitudinal beam fixed by the clamping mechanism of the production line, so that the pressing plate (201) fits the longitudinal beam, the detection head (407) moves to abut against the longitudinal beam, the No. 1 motor (206) operates, and through the meshing transmission of the No. 1 gear (205) and the No. 1 toothed plate (203), the sliding frame (204) slides along the T-shaped bar (202), thereby adjusting the positions of the multiple moving components (3); Step 3: When the first detection head (407) moves to the reserved hole groove of the longitudinal beam, the pressure sensor inside it does not detect a pressure value, and it is determined that the moving component (3) moves to the installation position, and the No. 3 motor (508) is controlled to operate, driving the No. 2 screw rod (502) to rotate, and through the screw engagement with the No. 2 threaded sleeve (503), the push plate (505) pushes the cross beam to move inside the installation frame (301) and insert it into the installation hole groove of the longitudinal beam; Step 4: When the first detection head (407) moves to the reserved hole groove of the longitudinal beam, the No. 3 cylinder (704) and the No. 2 cylinder (606) operate simultaneously, and the No. 3 cylinder (704) drives the transmission frame (7) to move, and the rotation ring (602) and the U-shaped hollow ring (702) are rotated through the transmission of the ring gear (603) and the incomplete ring gear (703) and the No. 2 gear plate (701), and the rotation ring (602) drives the telescopic plate (604) to rotate, and The second cylinder (606) contracts and, under the sliding limit of the first reinforcement rod (208) and the slide groove (302), the U-shaped hollow ring (702) pushes the step rod (601) to move, so that the installation frame (301) moves. At the same time, the opening direction of the U-shaped hollow ring (702) also rotates, so that the step rod (601) connected thereto can move horizontally out, so that the installation frame (301) can be separated and moved. Repeat the operation to install multiple beams.

Images