Welding device for forklift frame production

Abstract

The invention relates to the technical field of welding devices, and provides a forklift frame production welding device which comprises a workbench, supporting legs are fixedly connected to the bottom of the workbench, an electric sliding rail is fixedly connected to the bottom of the workbench, a supporting frame is fixedly connected to the bottom of the workbench, and a cleaning device is installed on the inner wall of the supporting frame. A pushing device is installed on the left side of the sweeping device, a clamping device is installed at the bottom of an electric sliding rail, a supporting device is installed at the bottom of the clamping device, a welding slag box is fixedly connected to the bottom of a supporting frame, a vibration device is installed on the inner wall of the supporting frame, and an observation device is installed on the front portion of the vibration device. By means of the technical scheme, the technical problems that in the prior art, clamping is not stable, and sliding is prone to occurring are solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of welding devices, and in particular, to a welding device for producing forklift frames. Background Art

[0002] During the production of forklift frames, welding equipment is required to weld the various long components of the forklift frame to ensure that they remain stable and accurately positioned during the welding process to avoid deformation or dislocation.

[0003] Patent publication number CN219274943U discloses a displacement and flipping device for welding a forklift frame, comprising a fixing seat, a front axle fixing assembly provided on the fixing seat for fixing half plates of frames of different widths, a detachable fastening assembly provided on the fixing seat for fixing the front end of a forklift battery compartment bottom plate, and a sliding assembly provided on the fixing seat for linear movement for fixing forklift tail frames of different lengths; the displacement and flipping device for welding a forklift frame fixes half plates of different widths by providing a front axle fixing assembly, fixes the front end of a forklift battery compartment bottom plate by providing a detachable fastening assembly, and fixes the tail frames of different lengths by providing a sliding assembly that can slide on the fixing plate. This solves the problem that the structures of forklift frames vary greatly due to different forklift models, and the imbalance of production orders, and that equipping a welding displacement and flipping device according to the model and output has the problem of too much equipment, too much equipment space occupied, and idle equipment, which is wasteful. In addition, there is the problem that the clamping is unstable and easy to slide. Therefore, a welding device for forklift frame production is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] To overcome the above-mentioned defects, an embodiment of the present invention provides a welding device for forklift frame production, which solves the technical problem of unstable clamping and easy sliding in the prior art.

[0005] The lifting mechanism is a bottom of the lifting mechanism, and the lifting mechanism is a bottom of the lifting mechanism, and the lifting mechanism is a bottom of the lifting mechanism. The trapezoidal block is rotatably connected to the surface of the connecting block, the fixed block is fixedly connected to the bottom of the slide rail plate, the rotating rod is fixedly connected to the inner wall of the fixed block, and the clamping body is rotatably connected to the circumferential surface of the rotating rod. The supporting device includes a moving block, a connecting rod, a rotating column, a small hinge block and a support plate. The moving block is fixedly connected to the bottom of the clamping body, the rotating column is fixedly connected to the inner wall of the moving block, the connecting rod is rotatably connected to the circumferential surface of the rotating column, the small hinge block is rotatably connected to the inner wall of the connecting rod, the support plate is fixedly connected to the top of the small hinge block, and the transmission The circumferential surface of the moving rod contacts the inner wall of the slide plate, and the circumferential surface of the trapezoidal block is rotatably connected to the inner wall of the clamping body. Through the coordinated operation among the cylinder, transmission rod, rotating rod, clamping body, trapezoidal block, connecting block, fixed block, moving plate and slide plate, the object to be welded can be clamped to ensure the stability of welding so that normal welding can be carried out. Through the coordinated operation among the moving block, connecting rod, rotating column, small hinge block and support plate, it can support the welding object to prevent the welding object from moving down due to its heavy weight, thereby ensuring normal welding without affecting the welding effect.

[0006] For example, in a welding device for forklift frame production provided by at least one embodiment of the present invention, the cleaning device includes a scraper, a pushing column, a leakage plate and a reciprocating screw. The inner wall of the support frame is fixedly connected to a motor, the reciprocating screw is rotatably connected to the output end of the motor, the scraper is threadedly connected to the circumferential surface of the reciprocating screw, the pushing column is fixedly connected on both sides of the scraper, and the leakage plate contacts the bottom of the scraper. The pushing device includes a rotating block, a wheel, an L-column, a fixed ring, a long spring, a slide rail, an extrusion plate, a triangular column, an extrusion spring, an extrusion column, a pushing block, a moving uniform plate and a push rod. The rotating block is fixedly connected to the circumferential surface of the reciprocating screw, the wheel contacts the inner wall of the rotating block, the L-column is fixedly connected to the left side of the wheel, and the fixed ring is fixedly connected to the circumferential surface of the L-column.

[0007] According to another aspect, at least one embodiment of the present invention further provides a welding device for forklift frame production, wherein the long spring is fixedly connected to the bottom of the fixed ring, the slide rail is fixedly connected to the bottom of the fixed ring, the push rod is fixedly connected to the bottom of the L-pillar, the extrusion plate is fixedly connected to the bottom of the stacking plate, the extrusion spring is fixedly connected to the left side of the support frame, the moving uniform plate is fixedly connected to the left side of the extrusion spring, the pushing block is fixedly connected to the bottom of the moving uniform plate, the extrusion column is fixedly connected to the right side of the pushing block, the triangular column is fixedly connected to the right side of the extrusion column, the bottom of the extrusion plate is in contact with the top of the triangular column, and the bottom of the push rod is in contact with the stacking plate. The bottom of the pushing column is in contact with the top of the leakage plate. Through the coordinated operation of the scraper, pushing column, leakage plate and reciprocating screw, the welding slag generated by welding can be cleaned. At the same time, the pushing column can make the welding slag remaining on the surface of the leakage plate fall on the pushing plate through the hole, thereby saving workload and labor cost. Through the coordinated operation of the rotating block, wheel, L column, fixed ring, long spring, slide rail, extrusion plate, triangular column, extrusion spring, extrusion column, pushing block, moving uniform plate and push rod, the welding slag falling on the pushing plate can be moved to the left and into the welding slag box, so that the welding slag in the welding slag box can be evenly distributed, preventing subsequent blockage from affecting the collection of welding slag.

[0008] For example, in a welding device for forklift frame production provided by at least one embodiment of the present invention, the vibration device includes a rectangular column, a semi-cylinder, a protrusion, a small spring, a vibration plate and a telescopic column, the small spring is fixedly connected to the inner wall of the support frame, the telescopic column is fixedly connected to the inner wall of the support frame, the telescopic vibration plate is fixedly connected to the right side of the small spring, the telescopic rectangular column is fixedly connected to the top of the scraper, the telescopic semi-cylinder is fixedly connected to the left side of the rectangular column, the telescopic protrusion is fixedly connected to the right side of the vibration plate, the observation device includes an inclined block, a rotating plate, a large hinge block, a support bar and a protective plate, the inclined block is fixedly connected to the left side of the clamping body, the large hinge block is fixedly connected to the inner wall of the vibration plate, and the rotating plate is rotatably connected On the circumferential surface of the large hinge block, the support bar is fixedly connected to the inner wall of the support frame, the protective plate is fixedly connected to the inner wall of the rotating plate, the left side of the oblique block is in contact with the vibration plate, the right side of the telescopic column is fixedly connected to the left side of the vibration plate, and the right side of the support bar is in contact with the rotating plate. Through the coordinated operation between the rectangular column, semi-cylinder, protrusion, small spring, vibration plate and telescopic column, the welding spatter caused by welding work and stuck to the surface of the vibration plate falls off, reducing the subsequent workload. Through the coordinated operation between the oblique block, rotating plate, large hinge block, support bar and protective plate, the light generated by the welding seen by workers during the welding process is weakened, preventing the light generated by the welding from damaging the human eyes.

[0009] The beneficial effects of the embodiments of the present invention are: In the present invention, through the coordinated operation among the cylinder, transmission rod, rotating rod, clamping body, trapezoidal block, connecting block, fixed block, movable plate and slide plate, the object to be welded can be clamped, and the stability of welding can be ensured so that normal welding can be carried out. Through the coordinated operation among the movable block, connecting rod, rotating column, small hinge block and support plate, the welding object can be supported to prevent the welding object from moving down due to its heavy weight, thereby ensuring normal welding without affecting the welding effect.

[0010] In the present invention, the scraper, the pushing column, the leakage plate and the reciprocating screw rod cooperate to operate, and the welding slag generated by welding can be cleaned. At the same time, the pushing column can make the welding slag remaining on the surface of the leakage plate fall on the pushing plate through the hole, thereby saving workload and labor costs. The rotating block, the wheel, the L column, the fixed ring, the long spring, the slide rail, the extrusion plate, the triangular column, the extrusion spring, the extrusion column, the pushing block, the moving uniform plate and the push rod cooperate to operate, the welding slag falling on the pushing plate can be moved to the left side into the welding slag box, and the welding slag in the welding slag box can be evenly distributed to prevent subsequent blockage from affecting the collection of welding slag.

[0011] In the present invention, the cooperation between the rectangular column, the semi-cylinder, the protrusion, the small spring, the vibration plate and the telescopic column allows the welding spatter that sticks to the surface of the vibration plate due to the welding process to fall off, thereby reducing the subsequent workload. The cooperation between the inclined block, the rotating plate, the large hinge block, the support bar and the protective plate can reduce the brightness generated by the welding that workers see during the welding process, thereby preventing the brightness generated by the welding from damaging the human eye. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a half-section schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic structural diagram of the clamping device of the present invention; Figure 4 This is a schematic structural diagram of the support device of the present invention; Figure 5 Schematic diagram of the cleaning device structure of the present invention; Figure 6 This is a structural diagram of the material pushing device of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure in the middle; Figure 8 For the present invention Figure 6 A magnified schematic diagram of the structure B in the middle; Figure 9 This is a schematic structural diagram of the vibration device of the present invention; Figure 10 Schematic diagram of the structure of the observation device of the present invention.

[0014] In the figure: 1. workbench; 2. supporting legs; 3. clamping device; 301. cylinder; 302. transmission rod; 303. rotating rod; 304. clamping body; 305. trapezoidal block; 306. connecting block; 307. fixed block; 308. moving plate; 309. slide plate; 4. supporting device; 401. moving block; 402. connecting rod; 403. rotating column; 404. small hinge block; 405. supporting plate; 5. cleaning device; 501. scraper; 502. pushing column; 503. leakage plate; 504. reciprocating screw; 6. pushing device; 601. rotating block; 602. wheel; 603. L column; 604. fixed Fixed ring; 605, long spring; 606, slide rail; 607, extrusion plate; 608, triangular prism; 609, extrusion spring; 610, extrusion column; 611, push block; 612, moving uniform plate; 613, push rod; 7, vibration device; 701, rectangular prism; 702, semi-cylinder; 703, bump; 704, small spring; 705, vibration plate; 706, telescopic column; 8, observation device; 801, inclined block; 802, rotating plate; 803, large hinge block; 804, support bar; 805, protective plate; 9, support frame; 10, electric slide rail; 11, stacking plate; 12, folding plate; 13, welding slag box. DETAILED DESCRIPTION The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0015] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0016] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0017] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0018] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0019] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0020] like Figures 1 to 10 As shown, it shows a welding device for forklift frame production in one embodiment of the present invention, including a workbench 1, a support leg 2 fixedly connected to the bottom of the workbench 1, an electric slide rail 10 fixedly connected to the bottom of the workbench 1, a support frame 9 fixedly connected to the bottom of the workbench 1, a cleaning device 5 installed on the inner wall of the support frame 9, a pushing device 6 installed on the left side of the cleaning device 5, a clamping device 3 installed at the bottom of the electric slide rail 10, a supporting device 4 installed at the bottom of the clamping device 3, a welding slag box 13 fixedly connected to the bottom of the support frame 9, a vibration device 7 installed on the inner wall of the support frame 9, an observation device 8 installed in front of the vibration device 7, a folding plate 12 fixedly connected to the right side of the welding slag box 13, and a stacking plate 11 fixedly connected to the right side of the folding plate 12.

[0021] In some examples, the clamping device 3 includes a cylinder 301, a transmission rod 302, a rotating rod 303, a clamping body 304, a trapezoidal block 305, a connecting block 306, a fixed block 307, a movable plate 308 and a slide plate 309, wherein the slide plate 309 is fixedly connected to the movable end of the electric slide 10, the cylinder 301 is fixedly connected to the top of the slide plate 309, the transmission rod 302 is fixedly connected to the output end of the cylinder 301, the movable plate 308 is fixedly connected to the bottom of the transmission rod 302, the connecting block 306 is fixedly connected to both sides of the movable plate 308, the trapezoidal block 305 is rotatably connected to the surface of the connecting block 306, the fixed block 307 is fixedly connected to the bottom of the slide plate 309, and the rotating rod 30 3 is fixedly connected to the inner wall of the fixed block 307, the clamping body 304 is rotatably connected to the circumferential surface of the rotating rod 303, the supporting device 4 includes a moving block 401, a connecting rod 402, a rotating column 403, a small hinge block 404 and a support plate 405. The moving block 401 is fixedly connected to the bottom of the clamping body 304, the rotating column 403 is fixedly connected to the inner wall of the moving block 401, the connecting rod 402 is rotatably connected to the circumferential surface of the rotating column 403, the small hinge block 404 is rotatably connected to the inner wall of the connecting rod 402, and the support plate 405 is fixedly connected to the top of the small hinge block 404. The circumferential surface of the transmission rod 302 contacts the inner wall of the slide plate 309, and the circumferential surface of the trapezoidal block 305 is rotatably connected to the inner wall of the clamping body 304.

[0022] For example, Figures 1 to 10 As shown, the cylinder 301 drives the transmission rod 302 to move upward, the transmission rod 302 moves upward and drives the movable plate 308 to move upward, the movable plate 308 moves upward and drives the connecting block 306 to move upward, the connecting block 306 moves upward and drives the trapezoidal block 305 to move upward, the trapezoidal block 305 drives the clamping body 304 to move toward the center, which can clamp the object to be welded, ensuring the stability of the welding so that it can be welded normally. The clamping body 304 moves toward the center and drives the movable block 401 to move toward the center, the movable block 401 moves toward the center and drives the connecting rod 402 to move upward, the connecting rod 402 moves upward and drives the small hinge block 404 to move upward, the small hinge block 404 moves upward and drives the support plate 405 to move upward, so that it can support the welding object and prevent the welding object from moving downward due to its excessive weight, ensuring normal welding without affecting the welding effect.

[0023] like Figures 1 to 10As shown, it shows another embodiment of the present invention, the cleaning device 5 includes a scraper 501, a pushing column 502, a leak plate 503 and a reciprocating screw 504, the inner wall of the support frame 9 is fixedly connected to the motor, the reciprocating screw 504 is rotatably connected to the output end of the motor, the scraper 501 is threadedly connected to the circumferential surface of the reciprocating screw 504, the pushing column 502 is fixedly connected to both sides of the scraper 501, the leak plate 503 contacts the bottom of the scraper 501, and the pushing device 6 includes a rotating block 601, a wheel 602, an L column 603, a fixing ring 604, a long spring 605, a slide rail 606, an extrusion plate 607, a triangular column 608, an extrusion spring 609, an extrusion column 610, a pushing block 611, a moving uniform plate 612 and a push rod 613, the rotating block 601 is fixedly connected to the circumferential surface of the reciprocating screw 504, the wheel 602 contacts the rotating block 601 On the inner wall, the L-pillar 603 is fixedly connected to the left side of the wheel 602, the fixing ring 604 is fixedly connected to the circumferential surface of the L-pillar 603, the long spring 605 is fixedly connected to the bottom of the fixing ring 604, the slide rail 606 is fixedly connected to the bottom of the fixing ring 604, the push rod 613 is fixedly connected to the bottom of the L-pillar 603, the extrusion plate 607 is fixedly connected to the bottom of the stacking plate 11, the extrusion spring 609 is fixedly connected to the left side of the support frame 9, the moving uniform plate 612 is fixedly connected to the left side of the extrusion spring 609, the pushing block 611 is fixedly connected to the bottom of the moving uniform plate 612, the extrusion column 610 is fixedly connected to the right side of the pushing block 611, the triangular column 608 is fixedly connected to the right side of the extrusion column 610, the bottom of the extrusion plate 607 contacts the top of the triangular column 608, the bottom of the push rod 613 contacts the stacking plate 11, and the bottom of the pushing column 502 contacts the top of the leak plate 503.

[0024] In some examples, the vibration device 7 includes a rectangular column 701, a semi-cylinder 702, a protrusion 703, a small spring 704, a vibration plate 705 and a telescopic column 706. The small spring 704 is fixedly connected to the inner wall of the support frame 9, the telescopic column 706 is fixedly connected to the inner wall of the support frame 9, the telescopic vibration plate 705 is fixedly connected to the right side of the small spring 704, the telescopic rectangular column 701 is fixedly connected to the top of the scraper 501, the telescopic semi-cylinder 702 is fixedly connected to the left side of the rectangular column 701, the telescopic protrusion 703 is fixedly connected to the right side of the vibration plate 705, and the observation device 8 includes an inclined block 8 01, rotating plate 802, large hinge block 803, support bar 804 and protective plate 805, the oblique block 801 is fixedly connected to the left side of the clamping body 304, the large hinge block 803 is fixedly connected to the inner wall of the vibration plate 705, the rotating plate 802 is rotatably connected to the circumferential surface of the large hinge block 803, the support bar 804 is fixedly connected to the inner wall of the support frame 9, the protective plate 805 is fixedly connected to the inner wall of the rotating plate 802, the left side of the oblique block 801 is in contact with the vibration plate 705, the right side of the telescopic column 706 is fixedly connected to the left side of the vibration plate 705, and the right side of the support bar 804 is in contact with the rotating plate 802.

[0025] For example, Figures 1 to 10As shown, the motor drives the reciprocating screw 504 to rotate, and the rotation of the reciprocating screw 504 drives the scraper 501 to move back and forth, and the reciprocating movement of the scraper 501 drives the pushing column 502 to move back and forth, so that the welding slag generated by welding can be cleaned, and at the same time, the pushing column 502 can make the welding slag remaining on the surface of the leak plate 503 fall onto the stacking plate 11 through the hole, thereby saving workload and labor costs. The rotation of the reciprocating screw 504 drives the rotating block 601 to rotate, and the rotating block 601 drives the wheel 602 to move up and down. 2 drives the push rod 613 to move up and down, and the push rod 613 drives the push plate to move downward, so that the welding slag falling on the stacking plate 11 can move to the left. At the same time, the stacking plate 11 drives the extrusion plate 607 to move downward. The extrusion plate 607 squeezes the triangular column 608 to move it to the left. The triangular column 608 drives the extrusion column 610 to move to the left. The extrusion column 610 moves to the left and drives the push block 611 to move to the left. In this way, the welding slag in the welding slag box 13 can be evenly distributed to prevent subsequent blockage that affects the collection of welding slag. The movement of scraper 501 drives rectangular column 701 to move, and the movement of rectangular column 701 drives semi-cylinder 702 to move. Semi-cylinder 702 squeezes protrusion 703 to make vibration plate 705 move to the left, and squeezes small spring 704 at the same time. When semi-cylinder 702 no longer squeezes protrusion 703, the vibration plate 705 moves to the left due to the recovery effect of small spring 704. Repeating this effect can make vibration plate 705 vibrate, so that the welding spatter stuck to the surface of vibration plate 705 due to welding work falls off, reducing the subsequent workload. Clamping body 304 drives inclined block 801 to move toward the middle, and clamping body 304 moves toward the middle to drive vibration plate 705 to move to the left, and compresses small spring 704 at the same time, making rotating plate 802 rotate. The rotation of rotating plate 802 drives protective plate 805 to rotate, so that the light generated by welding seen by workers during welding is weakened, preventing the light generated by welding from damaging artificial eyes.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding device for forklift frame production, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a support leg (2), the bottom of the workbench (1) is fixedly connected to an electric slide rail (10), the bottom of the workbench (1) is fixedly connected to a support frame (9), the inner wall of the support frame (9) is installed with a cleaning device (5), the left side of the cleaning device (5) is installed with a pushing device (6), the bottom of the electric slide rail (10) is installed with a clamping device (3), the bottom of the clamping device (3) is installed with a supporting device (4), the bottom of the support frame (9) is fixedly connected to a welding slag box (13), the inner wall of the support frame (9) is installed with a vibration device (7), the front of the vibration device (7) is installed with an observation device (8), the right side of the welding slag box (13) is fixedly connected to a folding plate (12), and the right side of the folding plate (12) is fixedly connected to a stacking plate (11); The clamping device (3) comprises a cylinder (301), a transmission rod (302), a rotating rod (303), a clamping body (304), a trapezoidal block (305), a connecting block (306), a fixed block (307), a movable plate (308) and a slide plate (309), wherein the slide plate (309) is fixedly connected to the movable end of the electric slide rail (10), the cylinder (301) is fixedly connected to the top of the slide plate (309), the transmission rod (302) is fixedly connected to the cylinder (3 01) output end, the movable plate (308) is fixedly connected to the bottom of the transmission rod (302), the connecting block (306) is fixedly connected to both sides of the movable plate (308), the trapezoidal block (305) is rotatably connected to the surface of the connecting block (306), the fixed block (307) is fixedly connected to the bottom of the slide plate (309), the rotating rod (303) is fixedly connected to the inner wall of the fixed block (307), and the clamping body (304) is rotatably connected to the circumferential surface of the rotating rod (303).

2. A welding device for forklift frame production according to claim 1, characterized in that: The supporting device (4) comprises a moving block (401), a connecting rod (402), a rotating column (403), a small hinge block (404) and a supporting plate (405), wherein the moving block (401) is fixedly connected to the bottom of the clamping body (304), the rotating column (403) is fixedly connected to the inner wall of the moving block (401), the connecting rod (402) is rotatably connected to the circumferential surface of the rotating column (403), the small hinge block (404) is rotatably connected to the inner wall of the connecting rod (402), and the supporting plate (405) is fixedly connected to the top of the small hinge block (404).

3. A welding device for forklift frame production according to claim 2, characterized in that: The circumferential surface of the transmission rod (302) contacts the inner wall of the slide rail plate (309), and the circumferential surface of the trapezoidal block (305) is rotatably connected to the inner wall of the clamping body (304).

4. A welding device for forklift frame production according to claim 3, characterized in that: The cleaning device (5) includes a scraper (501), a material pushing column (502), a leakage plate (503) and a reciprocating screw (504); the inner wall of the support frame (9) is fixedly connected to a motor; the reciprocating screw (504) is rotatably connected to the output end of the motor; the scraper (501) is threadedly connected to the circumferential surface of the reciprocating screw (504); the material pushing column (502) is fixedly connected to both sides of the scraper (501); and the leakage plate (503) contacts the bottom of the scraper (501).

5. A welding device for forklift frame production according to claim 4, characterized in that: The pushing device (6) includes a rotating block (601), a wheel (602), an L-column (603), a fixing ring (604), a long spring (605), a slide rail (606), an extrusion plate (607), a triangular column (608), an extrusion spring (609), an extrusion column (610), a pushing block (611), a moving uniform plate (612) and a push rod (613), wherein the rotating block (601) is fixedly connected to the circumferential surface of the reciprocating screw (504), the wheel (602) contacts the inner wall of the rotating block (601), and the L-column (603) is fixedly connected to the inner wall of the rotating block (601). Connected to the left side of the wheel (602), the fixed ring (604) is fixedly connected to the circumferential surface of the L-pillar (603), the long spring (605) is fixedly connected to the bottom of the fixed ring (604), the slide rail (606) is fixedly connected to the bottom of the fixed ring (604), the push rod (613) is fixedly connected to the bottom of the L-pillar (603), the extrusion plate (607) is fixedly connected to the bottom of the stacking plate (11), the extrusion spring (609) is fixedly connected to the left side of the support frame (9), and the moving uniform plate (612) is fixedly connected to the left side of the extrusion spring (609).

6. A welding device for forklift frame production according to claim 5, characterized in that: The pushing block (611) is fixedly connected to the bottom of the moving uniform plate (612), the extrusion column (610) is fixedly connected to the right side of the pushing block (611), and the triangular column (608) is fixedly connected to the right side of the extrusion column (610).

7. A welding device for forklift frame production according to claim 6, characterized in that: The bottom of the extrusion plate (607) contacts the top of the triangular column (608), the bottom of the push rod (613) contacts the stacking plate (11), and the bottom of the pushing column (502) contacts the top of the leaking plate (503).

8. The welding device for forklift frame production according to claim 7, characterized in that: The vibration device (7) comprises a rectangular column (701), a semi-circular column (702), a protrusion (703), a small spring (704), a vibration plate (705) and a telescopic column (706), wherein the small spring (704) is fixedly connected to the inner wall of the support frame (9), the telescopic column (706) is fixedly connected to the inner wall of the support frame (9), the telescopic vibration plate (705) is fixedly connected to the right side of the small spring (704), the telescopic rectangular column (701) is fixedly connected to the top of the scraper (501), the telescopic semi-circular column (702) is fixedly connected to the left side of the rectangular column (701), and the telescopic protrusion (703) is fixedly connected to the right side of the vibration plate (705).

9. A welding device for forklift frame production according to claim 8, characterized in that: The observation device (8) includes an inclined block (801), a rotating plate (802), a large hinge block (803), a support bar (804) and a protective plate (805), wherein the inclined block (801) is fixedly connected to the left side of the clamping body (304), the large hinge block (803) is fixedly connected to the inner wall of the vibration plate (705), the rotating plate (802) is rotatably connected to the circumferential surface of the large hinge block (803), the support bar (804) is fixedly connected to the inner wall of the support frame (9), and the protective plate (805) is fixedly connected to the inner wall of the rotating plate (802).

10. A welding device for forklift frame production according to claim 9, characterized in that: The left side of the inclined block (801) contacts the vibration plate (705), the right side of the telescopic column (706) is fixedly connected to the left side of the vibration plate (705), and the right side of the support bar (804) contacts the rotating plate (802).

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