Forklift gantry positioning and welding device

Abstract

The utility model provides a forklift mast positioning and welding device, which relates to the technical field of forklift mast welding and positioning, and comprises four vertical rods, a limiting frame is slidably connected among the four vertical rods, the surfaces of the limiting frame and a bearing frame are provided with limiting grooves, the surface of an H-shaped plate is fixedly provided with an air cylinder, and the H-shaped plate is provided with an air cylinder. A threaded rod is rotationally connected between the two fixed plates, a rotating wheel is fixedly installed on the surface of the threaded rod, a sliding rod is fixedly installed between the two fixed plates, the surface of the threaded rod is in threaded connection with two movable plates, and limiting plates are fixedly installed on the side faces of the movable plates. The portal frame can be positioned in the vertical direction through the limiting grooves in the bearing frame and the limiting frame, the portal frame is positioned in the horizontal direction through the two limiting plates, and the portal frame is positioned in the vertical direction and the horizontal direction, so that the positioning effect of the device is improved, and the dislocation phenomenon during forklift portal frame welding is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forklift door frame welding positioning technical field especially relates to a forklift door frame positioning welding device. BACKGROUND

[0002] Forklift refers to the various wheeled vehicles for loading and unloading, stacking and short distance transporting of the piece pallet cargo, and the technical parameters such as rated lifting capacity, load center distance and door frame inclination angle are used to show the structural characteristics and working performance of the forklift, which is usually divided into internal combustion forklift, electric forklift and other types. In the process of forklift door frame welding, welding positioning device needs to be used.

[0003] The prior art patent No. CN216227629U discloses a forklift inner door frame welding positioning device, which drives the piston rod to extend by the cylinder, drives the extrusion block to move upward to extrude the connecting block, drives the rotating block to rotate around the fixed rod, drives the pressing block to press on the inner door frame, fixes and positions the pressing block, and thus the inner door frame is limited from moving during welding, avoiding the influence of the inner door frame movement on the welding quality.

[0004] The inventor found in daily work that the forklift door frame welding positioning device can only position the door frame in the vertical direction and cannot position the door frame in the horizontal direction when limiting the door frame, which makes the forklift door frame prone to misalignment during welding, thereby reducing the processing effect of the forklift door frame. UTILITY MODEL CONTENTS

[0005] The utility model discloses a forklift door frame positioning welding device which solves the problem that the prior art forklift door frame welding positioning device can only position the door frame in the vertical direction and cannot position the door frame in the horizontal direction when limiting the door frame, which makes the forklift door frame prone to misalignment during welding.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a forklift door frame positioning welding device, including the bearing frame, the bottom surface of bearing frame is fixedly installed with four support legs, the surface of bearing frame is equipped with the limiting device, the limiting device includes four vertical rods, four vertical rods are fixedly installed on the top surface of bearing frame, the limiting frame is slidably connected between four vertical rods, the surface of limiting frame and bearing frame is all equipped with the limiting groove, the surface of one end of four vertical rods away from bearing frame is fixedly installed with H type board, the surface of H type board is fixedly installed with the cylinder, the output end of cylinder is fixedly connected with limiting frame, the surface of bearing frame is fixedly installed with two fixed plates, the threaded rod is rotatably connected between two fixed plates, the surface of threaded rod is fixedly installed with the rotating wheel, the sliding rod is fixedly installed between two fixed plates, the surface of threaded rod is screwedly connected with two movable plates, the side surface of movable plate is fixedly installed with the limiting plate.

[0007] The effect achieved by the above components is that the limiting grooves on the bearing frame and the limiting frame can position the portal frame in the vertical direction, and the double positioning of the portal frame in the vertical and horizontal directions through the two limiting plates improves the positioning effect of the device and avoids misalignment during welding of the forklift portal frame.

[0008] Preferably, the threads on the surface of the threaded rod are opposite each other with the rotating wheel as the center, and the movable plate is connected to the threaded rod and the sliding rod through sliding.

[0009] The effect achieved by the above components is that the rotating wheel drives the threaded rod to rotate, and the threaded rod drives the movable plate to move on the surface of the sliding rod.

[0010] Preferably, the limiting frame is connected to the cylinder and the vertical rod through sliding, and the size of the bearing frame and the limiting frame is matched.

[0011] The effect achieved by the above components is that the cylinder drives the limiting frame to move on the surface of the vertical rod.

[0012] Preferably, one side surface of the bearing frame is provided with an auxiliary device, the auxiliary device includes two rectangular plates, the two rectangular plates are fixedly installed on one side surface of the bearing frame, a rotating shaft is rotatably connected between the two rectangular plates, and a placing box is fixedly installed on the outer wall surface of the rotating shaft.

[0013] The effect achieved by the above components is that the rotating shaft allows the placing box to rotate, and the placing box stores the welding tools.

[0014] Preferably, a groove is formed in one side surface of the bearing frame, and a sliding plate is slidably connected in the groove.

[0015] The effect achieved by the above components is that the groove allows the sliding plate to move.

[0016] Preferably, a limiting rod is fixedly installed on the surface of the sliding plate, and a plurality of limiting holes are annularly formed in the outer wall surface of the rotating shaft.

[0017] The effect achieved by the above components is that the limiting rod and the limiting hole limit the rotation of the rotating shaft.

[0018] Preferably, a support plate is fixedly installed on one side surface of the bearing frame, and a spring is fixedly installed between the support plate and the sliding plate.

[0019] The effect achieved by the above components is that the spring limits the position of the sliding plate in the groove.

[0020] Preferably, two strip-shaped grooves are formed on one side surface of the bearing frame, and a displacement plate is slidably connected between the two strip-shaped grooves.

[0021] The displacement plate is arranged to drive the sliding plate to move in the groove.

[0022] Compared with the prior art, the utility model has the advantages and positive effects that:

[0023] In the utility model, the limiting device is arranged, so that the bearing frame and the limiting groove on the limiting frame can position the portal frame in the vertical direction, and the two limiting plates can position the portal frame in the horizontal direction, so that the portal frame is positioned in the vertical direction and the horizontal direction, the positioning effect of the device is improved, and the misalignment of the fork truck portal frame during welding is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the left view structure of the utility model; Figure 1

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model at A; Figure 1

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model at B; Figure 2

[0028] Legend: 1, bearing frame; 2, supporting leg; 3, limiting device; 301, vertical rod; 302, limiting frame; 303, limiting groove; 304, H-shaped plate; 305, air cylinder; 306, fixed plate; 307, threaded rod; 308, rotating wheel; 309, sliding rod; 310, movable plate; 311, limiting plate; 4, auxiliary device; 401, rectangular plate; 402, rotating shaft; 403, placing box; 404, groove; 405, sliding plate; 406, limiting rod; 407, limiting hole; 408, supporting plate; 409, spring; 410, strip-shaped groove; 411, displacement plate. DETAILED DESCRIPTION

[0029] Example 1, as Figures 1-3 ​​​As shown, a forklift gantry positioning welding device, including a carrier frame 1, the bottom surface of the carrier frame 1 is fixedly installed with four legs 2, the surface of the carrier frame 1 is provided with a limiting device 3, the limiting device 3 includes four vertical rods 301, four vertical rods 301 are fixedly installed on the top surface of the carrier frame 1, four vertical rods 301 are slidably connected with a limiting frame 302 between them, the surface of the limiting frame 302 and the surface of the carrier frame 1 are both provided with a limiting groove 303, the surface of the end of the four vertical rods 301 away from the carrier frame 1 is fixedly installed with an H-shaped plate 304, the surface of the H-shaped plate 304 is fixedly installed with a cylinder 305, the output end of the cylinder 305 is fixedly connected with the limiting frame 302, the surface of the carrier frame 1 is fixedly installed with two fixed plates 306, the two fixed plates 306 are rotatably connected with a threaded rod 307 between them, the surface of the threaded rod 307 is fixedly installed with a rotating wheel 308, the two fixed plates 306 are fixedly installed with a sliding rod 309 between them, the surface of the threaded rod 307 is threadedly connected with two movable plates 310, the side surface of the movable plate 310 is fixedly installed with a limiting plate 311, so that the limiting groove 303 on the carrier frame 1 and the limiting frame 302 can position the gantry in the vertical direction, and the gantry is positioned in the horizontal direction by the two limiting plates 311, the gantry is double-positioned in the vertical direction and the horizontal direction, thereby improving the positioning effect of the device and avoiding misalignment during welding of the forklift gantry.

[0030] With reference to Figures 1-3 As shown in the embodiment: the threads on the surface of the threaded rod 307 are reverse threads with the rotating wheel 308 as the center, the movable plate 310 is slidably connected with the threaded rod 307 and the sliding rod 309, the rotating wheel 308 is arranged to drive the threaded rod 307 to rotate, and the threaded rod 307 is arranged to drive the movable plate 310 to move on the surface of the sliding rod 309.

[0031] With reference to Figures 1-3 As shown in the embodiment: the limiting frame 302 is slidably connected with the cylinder 305 and the vertical rod 301, the size of the carrier frame 1 and the limiting frame 302 is adapted, and the cylinder 305 is arranged to drive the limiting frame 302 to move on the surface of the vertical rod 301.

[0032] With reference to Figures 2-4As shown, in the embodiment: one side surface of the bearing frame 1 is provided with an auxiliary device 4, the auxiliary device 4 includes two rectangular plates 401, the two rectangular plates 401 are fixedly installed on one side surface of the bearing frame 1, a rotating shaft 402 is rotatably connected between the two rectangular plates 401, a placing box 403 is fixedly installed on the outer wall surface of the rotating shaft 402, the rotating shaft 402 is provided to enable the placing box 403 to rotate, the placing box 403 is provided to store the welding tool, a recess 404 is formed in one side surface of the bearing frame 1, a sliding plate 405 is slidably connected in the recess 404, the recess 404 is provided to enable the sliding plate 405 to move, a limiting rod 406 is fixedly installed on the surface of the sliding plate 405, a plurality of limiting holes 407 are annularly formed in the outer wall surface of the rotating shaft 402, the limiting rod 406 and the limiting holes 407 are provided to limit the rotation of the rotating shaft 402, a supporting plate 408 is fixedly installed on one side surface of the bearing frame 1, a spring 409 is fixedly installed between the supporting plate 408 and the sliding plate 405, the spring 409 is provided to limit the position of the sliding plate 405 in the recess 404, two strip-shaped grooves 410 are formed in one side surface of the bearing frame 1, a displacement plate 411 is slidably connected between the two strip-shaped grooves 410, and the displacement plate 411 is provided to drive the sliding plate 405 to move in the recess 404.

[0033] Working principle: when the device is needed, first the need to weld the portal frame is placed vertically in the surface of the bearing frame 1 opening limit slot 303, then start the cylinder 305, cylinder 305 drive limit frame 302 in the surface of the vertical rod 301 down, limit frame 302 in the surface of the vertical rod 301 down makes its surface opening limit slot 303 for door frame clamping positioning, then in the rotating wheel 308, wheel 308 rotation drive screw rod 307 rotation, because the screw rod 307 surface thread with wheel 308 as the center of the reverse thread, so the wheel 308 in drive screw rod 307 rotation, its surface thread connection two movable plate 310 will move in the surface of the slide rod 309 to each other close direction, two movable plate 310 in the surface of the slide rod 309 to each other close direction drive two limit plate 311 to each other close direction, two limit plate 311 to each other close direction on the door frame horizontal direction clamping positioning, through the vertical direction and horizontal direction on the double positioning of the portal frame, and then improve the positioning effect of the device, to avoid the forklift portal frame welding occurs misalignment phenomenon, when need to use the placement box 403, first slide displacement plate 411, so that the displacement plate 411 in the bar groove 410 inside the mobile, displacement plate 411 in the bar groove 410 inside the mobile will drive the slide plate 405 in the groove 404 inside the mobile, slide plate 405 in the groove 404 inside the mobile will extrude spring 409, so that the spring 409 stress compression, at the same time slide plate 405 in the groove 404 inside the mobile also drive the limit rod 406 movement, limit rod 406 movement makes its own from the limit hole 407 inside the removal, limit rod 406 and limit hole 407 separation makes the shaft 402 lose limit, at this time can rotate the placement box 403, the placement box 403 from the vertical state to the horizontal state, when the placement box 403 rotation to the horizontal state, release displacement plate 411, use the spring 409 of the resilience makes the limit rod 406 reinserted in the corresponding limit hole 407 inside, in order to limit the shaft 402 rotation, at this time can use the horizontal state of the placement box 403 to the welding tool needed for temporary storage, for welding to provide convenience.

[0034] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A forklift mast positioning and welding device, comprising a support frame (1), wherein four support legs (2) are fixedly mounted on the bottom surface of the support frame (1), characterized in that: The surface of the support frame (1) is provided with a limiting device (3), which includes four uprights (301). The four uprights (301) are fixedly installed on the top surface of the support frame (1). A limiting frame (302) is slidably connected between the four uprights (301). Limiting grooves (303) are opened on the surfaces of the limiting frame (302) and the support frame (1). An H-shaped plate (304) is fixedly installed on the surface of the four uprights (301) away from the support frame (1). A cylinder (305) is fixedly installed on the surface of the H-shaped plate (304). The output end of the cylinder (305) is fixedly connected to the limiting frame (302). Two fixing plates (306) are fixedly installed on the surface of the bearing frame (1). A threaded rod (307) is rotatably connected between the two fixing plates (306). A rotating wheel (308) is fixedly installed on the surface of the threaded rod (307). A sliding rod (309) is fixedly installed between the two fixing plates (306). Two movable plates (310) are threadedly connected to the surface of the threaded rod (307). A limiting plate (311) is fixedly installed on the side of the movable plate (310).

2. The forklift mast positioning and welding device according to claim 1, characterized in that: The threads on the surface of the threaded rod (307) are opposite to each other with the rotating wheel (308) as the center, and the movable plate (310) is slidably connected by the threaded rod (307) and the slide rod (309).

3. The forklift mast positioning and welding device according to claim 2, characterized in that: The limiting frame (302) is slidably connected to the upright (301) by means of a cylinder (305), and the size of the bearing frame (1) and the limiting frame (302) are compatible.

4. The forklift mast positioning and welding device according to claim 3, characterized in that: An auxiliary device (4) is provided on one side surface of the support frame (1). The auxiliary device (4) includes two rectangular plates (401). The two rectangular plates (401) are fixedly installed on one side surface of the support frame (1). A rotating shaft (402) is rotatably connected between the two rectangular plates (401). A placement box (403) is fixedly installed on the outer wall surface of the rotating shaft (402).

5. A forklift mast positioning and welding device according to claim 4, characterized in that: A groove (404) is provided on one side surface of the support frame (1), and a sliding plate (405) is slidably connected inside the groove (404).

6. The forklift mast positioning and welding device according to claim 5, characterized in that: Limiting rods (406) are fixedly installed on the surface of the sliding plate (405), and multiple limiting holes (407) are circumferentially opened on the outer wall surface of the rotating shaft (402).

7. A forklift mast positioning and welding device according to claim 6, characterized in that: A support plate (408) is fixedly installed on one side surface of the support frame (1), and a spring (409) is fixedly installed between the support plate (408) and the slide plate (405).

8. A forklift mast positioning and welding device according to claim 7, characterized in that: Two strip grooves (410) are provided on one side surface of the support frame (1), and a displacement plate (411) is slidably connected between the two strip grooves (410).

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