Forklift oil tank welding clamp

Abstract

The utility model relates to the technical field of welding clamps, and discloses a forklift oil tank welding clamp which comprises a bearing seat, a lower clamping seat arranged on the upper portion of the bearing seat, a fixing frame fixedly installed on the side face of the bearing seat, and a first telescopic device fixedly installed on the upper portion of the fixing frame. A movable plate is slidably connected to the opposite side faces of the bearing seat, a second telescopic device is fixedly installed on the upper portion of the movable plate, a connecting seat is fixedly installed at the telescopic upper end of the second telescopic device, and a third telescopic device is fixedly installed on the side face of the connecting seat; and a magnetic attraction block is fixedly mounted at the telescopic end part of the third telescopic device. According to the forklift oil tank welding device, the oil tank sealing baffle is attracted through the magnetic attraction block, when the oil tank main frame and the oil tank sealing baffle are welded through cooperation of the sliding moving plate, the second telescopic device and the third telescopic device, the oil tank sealing baffle does not need to be supported, and the forklift oil tank welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a welding fixture for a forklift fuel tank. Background Technology

[0002] Forklifts are handling vehicles used in industrial production. They are various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. The fuel tank is a basic component of a forklift. During the production of forklift fuel tanks, welding is required. Welding fixtures are generally used to ensure the stability of the weld.

[0003] To improve the efficiency of welding forklift fuel tanks, existing technologies have made numerous improvements to forklift fuel tank welding fixtures. For example, patent publication number CN209936235U discloses a forklift fuel tank welding fixture, including a base plate, first clamping seats, and second clamping seats. The two first clamping seats are fixedly mounted on both ends of the top surface of the base plate, and the two second clamping seats are located directly above the two first clamping seats. Vertical plates are provided on both sides of the center of the top surface of the base plate, and a connecting plate is rotatably mounted on the top surface of the vertical plates. One end of the connecting plate is fixedly connected to the top surface of the second clamping seat, and a power mechanism is provided between the other end of the connecting plate and the top surface of the base plate. The power mechanism includes a hydraulic telescopic rod, a moving block, and a pull rod, with the hydraulic telescopic rod located at the center of the top surface of the base plate. This utility model uses a single power mechanism to simultaneously power both second clamping seats, allowing for the clamping of two fuel tanks at once, supporting multi-threaded welding operations, improving welding efficiency, and ensuring on-time delivery to customers.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative documents describe how the fuel tank to be welded is clamped and fixed using a first clamping seat and a second clamping seat. However, in reality, forklift fuel tanks typically consist of a main frame and sealing plates welded to both ends of the main frame. During welding, the main body of the fuel tank is clamped, and the sealing plates are inserted into the internal positions at both ends of the main frame before welding. In practice, the sealing plates need to be supported during welding, which is inconvenient and reduces the efficiency of welding forklift fuel tanks. Therefore, there is an urgent need in the art to improve the welding fixture for forklift fuel tanks to overcome the shortcomings of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a welding fixture for forklift fuel tanks, thereby improving the efficiency of welding forklift fuel tanks.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a forklift fuel tank welding fixture, including a support base, a lower clamping seat adapted to the main frame of the fuel tank on the upper part of the support base, a fixed frame fixedly installed on the side of the support base, a first telescopic device with telescopic effect fixedly installed on the upper part of the fixed frame, the telescopic end of the first telescopic device passing through the fixed frame and the upper clamping seat adapted to the main frame of the fuel tank fixedly installed at its telescopic end, a movable plate slidably connected to the opposite side of the support base, a second telescopic device with telescopic effect fixedly installed on the upper part of the movable plate, a connecting seat fixedly installed at the telescopic upper end of the second telescopic device, a third telescopic device with telescopic effect fixedly installed on the side of the connecting seat, a magnetic block magnetically attracted to the fuel tank sealing plate fixedly installed at the telescopic end of the third telescopic device, and a main controller for control is provided on the side of the support base.

[0008] Preferably, a sliding block is fixedly installed on one side of the movable plate, and sliding grooves adapted to the sliding block are opened on the opposite sides of the bearing seat.

[0009] Preferably, a first plug-in block is fixedly installed on the upper part of the upper clamping seat, and a first plug-in groove adapted to the first plug-in block is opened at the telescopic end of the first telescopic device. A plug-in post with one end inserted into the side of the telescopic end of the first telescopic device is passed through, and a pulling plate is fixedly connected to one end of the plug-in post. A spring is fixedly installed between the pulling plate and the side of the first telescopic device.

[0010] Preferably, a second plug block is fixedly installed on the side of the magnetic block, and a second plug slot adapted to the second plug block is opened at the end of the third telescopic device, and a locking bolt with one end threadedly connected to the second plug block passes through the side of the end of the third telescopic device.

[0011] Preferably, a positioning block is fixedly installed on the lower part of the lower clamping seat, and a positioning groove adapted to the positioning block is opened on the upper part of the bearing seat.

[0012] Preferably, baffles are fixedly installed on opposite sides of the bearing seat, and the baffles are used to cover the sliding groove.

[0013] Preferably, a preset static friction force is provided between the sliding block and the sliding groove. When an external force is applied that exceeds the preset static friction force, the sliding block slides along the sliding groove, and the sliding groove penetrates the side of the bearing seat.

[0014] To address the shortcomings of existing technologies, this utility model provides a forklift fuel tank welding fixture, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the oil tank sealing plate is attracted by the magnetic block, and the oil tank main frame and the oil tank sealing plate are welded together by the sliding moving plate, the second telescopic device and the third telescopic device. It is not necessary to support the oil tank sealing plate, which improves the efficiency of welding forklift oil tanks.

[0016] 2. In this utility model, the lower clamping seat is inserted into the positioning groove by a positioning block, and the first insertion block on the upper part of the upper clamping seat is inserted into the first insertion groove. The first insertion block is limited by the insertion post and the spring, which facilitates the installation or replacement of the lower clamping seat and the upper clamping seat.

[0017] 3. In this utility model, the second plug-in block is inserted into the second plug-in slot, and the second plug-in block is fixed in place by locking bolts, which facilitates the installation or replacement of the magnetic block.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the bearing seat and other components in this utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0024] Figure 5 for Figure 2 Enlarged structural diagram at point C;

[0025] Figure 6 for Figure 2 Enlarged structural diagram at point D.

[0026] In the diagram: 1. Bearing seat; 2. Lower clamping seat; 3. Oil tank main frame; 4. Fixing frame; 5. First telescopic device; 6. Upper clamping seat; 7. Moving plate; 8. Second telescopic device; 9. Connecting seat; 10. Third telescopic device; 11. Magnetic block; 12. Oil tank sealing plate; 13. Main controller; 14. Sliding block; 15. Sliding groove; 16. First insertion block; 17. First insertion groove; 18. Insertion post; 19. Pulling plate; 20. Spring; 21. Second insertion block; 22. Second insertion groove; 23. Locking bolt; 24. Positioning block; 25. Positioning groove; 26. Stop bar. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figures 1-6 A forklift fuel tank welding fixture includes a support base 1, a lower clamping seat 2 adapted to the main frame 3 of the fuel tank on the upper part of the support base 1, a fixed frame 4 fixedly installed on the side of the support base 1, a first telescopic device 5 with telescopic effect fixedly installed on the upper part of the fixed frame 4, the telescopic end of the first telescopic device 5 passes through the fixed frame 4 and an upper clamping seat 6 adapted to the main frame 3 of the fuel tank is fixedly installed at its telescopic end, a movable plate 7 is slidably connected to the opposite side of the support base 1, a second telescopic device 8 with telescopic effect is fixedly installed on the upper part of the movable plate 7, a connecting seat 9 is fixedly installed at the upper telescopic end of the second telescopic device 8, a third telescopic device 10 with telescopic effect is fixedly installed on the side of the connecting seat 9, a magnetic block 11 that magnetically attracts the fuel tank sealing plate 12 is fixedly installed at the telescopic end of the third telescopic device 10, a main controller 13 for control is provided on the side of the support base 1, a sliding block 14 is fixedly installed on one side of the movable plate 7, and sliding grooves 15 adapted to the sliding block 14 are opened on the opposite side of the support base 1.

[0030] In this specific embodiment, when welding is required on the forklift fuel tank, the formed fuel tank main frame 3 is placed on the upper part of the matching lower clamping seat 2. The first telescopic device 5 is activated by the main controller 13. The telescopic end of the first telescopic device 5 drives the upper clamping seat 6 to move down, clamping and fixing the fuel tank main frame 3. The fuel tank sealing plate 12 is attracted to one side of the magnetic block 11. The horizontal position of the fuel tank sealing plate 12 is adjusted by the sliding moving plate 7. The sliding block 14 slides in the sliding groove 15. The second telescopic device 8 and the third telescopic device 10 are controlled by the main controller 13. The second telescopic device 8 adjusts the vertical position of the fuel tank sealing plate 12, and the third telescopic device 10 adjusts the vertical position of the fuel tank sealing plate 12. The horizontal position adjustment of 12 allows the fuel tank sealing plate 12 to be located within the fuel tank main frame 3. Spot welding is then performed on the edge between the fuel tank sealing plate 12 and the fuel tank main frame 3 to position the fuel tank sealing plate 12. Subsequently, the third telescopic device 10 moves the magnetic block 11 to disengage from the fuel tank sealing plate 12, and the moving plate 7 is moved away. The fuel tank main frame 3 and the fuel tank sealing plate 12 are then completely welded. The magnetic block 11 attracts the fuel tank sealing plate 12, and through the cooperation of the sliding moving plate 7, the second telescopic device 8, and the third telescopic device 10, the fuel tank main frame 3 and the fuel tank sealing plate 12 do not need to be supported during welding, thus improving the efficiency of welding the forklift fuel tank.

[0031] Example 2

[0032] Please see Figure 5 and Figure 6 This embodiment includes the above embodiment, and further includes: a first insertion block 16 is fixedly installed on the upper part of the upper clamping seat 6; a first insertion groove 17 adapted to the first insertion block 16 is opened at the telescopic end of the first telescopic device 5; an insertion post 18 with one end inserted into the side of the telescopic end of the first telescopic device 5 is passed through; a pulling plate 19 is fixedly connected to one end of the insertion post 18; a spring 20 is fixedly installed between the pulling plate 19 and the side of the first telescopic device 5; a positioning block 24 is fixedly installed on the lower part of the lower clamping seat 2; and a positioning groove 25 adapted to the positioning block 24 is opened on the upper part of the bearing seat 1.

[0033] The specific implementation method in this embodiment is as follows: When welding different models of forklift fuel tanks is required, the lower clamping seat 2 and the fuel tank main frame 3 need to be replaced. When installing the lower clamping seat 2 and the fuel tank main frame 3, the positioning block 24 at the bottom of the lower clamping seat 2 is inserted into the positioning groove 25. The positioning block 24 is rectangular and plays a limiting role for the lower clamping seat 2. Pull the traction plate 19 away from the first telescopic device 5. At this time, the spring 20 is stretched, and the first insertion block 16 at the top of the upper clamping seat 6 is inserted into the first insertion groove 17. The position of the first insertion block 16 and the insertion post 18 are matched. Release the traction plate 19. At this time, the contraction force of the spring 20 drives the insertion post 18 to move. One end of the insertion post 18 is inserted into the side of the first insertion block 16, so that the upper clamping seat 6 can be installed, which facilitates the installation or later replacement of the lower clamping seat 2 and the upper clamping seat 6.

[0034] Example 3

[0035] Please see Figure 1 , Figure 3 and Figure 4 This embodiment includes all the above embodiments, and further includes: a second plug-in block 21 is fixedly installed on the side of the magnetic block 11; a second plug-in groove 22 adapted to the second plug-in block 21 is opened at the end of the third telescopic device 10; a locking bolt 23 with one end threadedly connected to the second plug-in block 21 passes through the side of the end of the third telescopic device 10; a stop bar 26 is fixedly installed on the opposite side of the bearing seat 1; the stop bar 26 is used to block the sliding groove 15; a preset static friction force is provided between the sliding block 14 and the sliding groove 15; when an external force is applied that exceeds the preset static friction force, the sliding block 14 slides along the sliding groove 15; the sliding groove 15 passes through the side of the bearing seat 1.

[0036] In this embodiment, when different magnetic blocks 11 need to be replaced, the second insertion block 21 on the side of the magnetic block 11 is inserted into the second insertion groove 22 at one end of the third telescopic device 10, and the locking bolt 23 is threaded through the end of the third telescopic device 10 and its end is threadedly connected to the second insertion block 21, which facilitates the installation or replacement of the magnetic block 11. The baffle 26 is used to block the waste residue during welding. When no external force is applied to the moving plate 7, the moving plate 7 always remains stationary, ensuring that the oil tank sealing baffle 12 will not shift during welding, and the sliding block 14 can slide out from the sliding groove 15, which facilitates the installation or replacement of the sliding block 14.

[0037] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed. Therefore, they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords and are electrically connected to the main controller 13 and the 220V phase voltage (or 380V line voltage) through the power cords. The main controller 13 can be a conventional known device such as a computer that plays a control role.

[0038] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a forklift tank, comprising a carrier seat (1), characterized in that, The upper part of the bearing seat (1) is provided with a lower clamping seat (2) adapted to the main frame (3) of the oil tank. A fixed frame (4) is fixedly installed on the side of the bearing seat (1). A first telescopic device (5) with telescopic effect is fixedly installed on the upper part of the fixed frame (4). The telescopic end of the first telescopic device (5) passes through the fixed frame (4) and an upper clamping seat (6) adapted to the main frame (3) of the oil tank is fixedly installed on its telescopic end. A moving plate (7) is slidably connected to the opposite side of the bearing seat (1). A second telescopic device (8) with telescopic effect is fixedly installed on the upper part of the moving plate (7). A connecting seat (9) is fixedly installed on the upper telescopic end of the second telescopic device (8). A third telescopic device (10) with telescopic effect is fixedly installed on the side of the connecting seat (9). A magnetic block (11) that magnetically attracts the oil tank sealing plate (12) is fixedly installed on the telescopic end of the third telescopic device (10). A main controller (13) for control is provided on the side of the bearing seat (1).

2. A forklift tank welding fixture according to claim 1, wherein, A sliding block (14) is fixedly installed on one side of the movable plate (7), and sliding grooves (15) adapted to the sliding block (14) are opened on the opposite sides of the bearing seat (1).

3. The forklift tank welding fixture of claim 1, wherein, The upper clamping seat (6) is fixedly installed with a first plug-in block (16). The telescopic end of the first telescopic device (5) is provided with a first plug-in groove (17) that is adapted to the first plug-in block (16). A plug-in post (18) with one end inserted into the side of the telescopic end of the first telescopic device (5) is provided. A pulling plate (19) is fixedly connected to one end of the plug-in post (18). A spring (20) is fixedly installed between the pulling plate (19) and the side of the first telescopic device (5).

4. The forklift tank welding fixture of claim 1, wherein, A second plug-in block (21) is fixedly installed on the side of the magnetic block (11), and a second plug-in groove (22) adapted to the second plug-in block (21) is opened at the end of the third telescopic device (10). A locking bolt (23) with one end threadedly connected to the second plug-in block (21) passes through the side of the end of the third telescopic device (10).

5. The forklift tank welding fixture of claim 1, wherein, A positioning block (24) is fixedly installed on the lower part of the lower clamping seat (2), and a positioning groove (25) adapted to the positioning block (24) is opened on the upper part of the bearing seat (1).

6. A forklift tank welding fixture according to claim 2, wherein, The support base (1) has baffles (26) fixedly installed on both sides. The baffles (26) are used to block the sliding groove (15).

7. A forklift tank welding fixture according to claim 2, wherein A preset static friction force is provided between the sliding block (14) and the sliding groove (15). When the applied external force exceeds the preset static friction force, the sliding block (14) slides along the sliding groove (15), and the sliding groove (15) penetrates the side of the bearing seat (1).

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