Forklift fork frame repair welding positioner

Abstract

The utility model discloses a kind of forklift fork carriage repair welding positioner tool, including positioner head device (1) and positioner tail device (2), the positioner head device (1) with the positioner tail device (2) between installation has fork carriage tooling (3), the fork carriage tooling (3) is equipped with clamping mechanism (4).The utility model supports forklift fork carriage by fork carriage tooling, uses clamping mechanism and fixes forklift fork carriage on fork carriage tooling, by positioner head device, forklift fork carriage can be rotated to the angle of convenient repair welding, the utility model is widely used, easy to operate and can effectively improve repair welding efficiency.

Description

Technical Field

[0001] This utility model relates to a tooling, specifically a tooling for welding positioners on forklift forks. Background Technology

[0002] The forklift fork carriage is one of the main structural components of a forklift, and its main function is to mount attachments and forks. Due to the wide variety of attachment types, the fork carriage is often specially designed. Existing welding fixtures may interfere with some weld seams, making welding impossible. Therefore, it is necessary to perform repair welding on the fork carriage.

[0003] Currently, when repairing fork carriages, manual lifting of the fork carriage is required before welding, which leads to inconsistent welding quality. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for welding a positioner on a forklift fork carriage to solve the technical problems in the prior art.

[0005] This utility model provides a forklift fork carriage welding positioner tooling, including a positioner head device and a positioner tail device, with a fork carriage tooling installed between the positioner head device and the positioner tail device, and the fork carriage tooling is provided with a clamping mechanism.

[0006] In the aforementioned forklift fork carriage welding positioner fixture, preferably, the positioner head device includes a geared motor, a first base, a head housing, an output shaft connecting gear, a driven gear, and a first connecting flange. The first base is fixed inside the head housing, the geared motor is fixed on the top of the first base, the output shaft connecting gear is fixed on the output shaft of the geared motor, the driven gear is rotatably mounted on the side wall of the head housing via a rotating shaft, the first connecting flange is fixedly mounted on the rotating shaft, and the driven gear meshes with the output shaft connecting gear.

[0007] In the aforementioned forklift fork carriage welding positioner fixture, preferably, a detection disc is provided on the rotating shaft, the detection disc is fixedly connected to the driven gear by bolts, a sensor bracket is provided on the top of the reduction motor, the sensor bracket is an L-shaped bracket, the vertical section of the sensor bracket is parallel to the detection disc, and a through hole is opened on the vertical section, one end of the rotating shaft passes through the through hole, three sensors are installed on the sensor bracket, and three positioning holes are opened on the detection disc.

[0008] In the aforementioned forklift fork carriage welding and positioner fixture, preferably, a plurality of first unpowered rollers are rotatably mounted on the top of the machine head housing, and two first guide rods are fixedly provided on the top of the machine head housing.

[0009] In the aforementioned forklift fork carriage welding positioner fixture, preferably, the positioner tail device includes a tail housing, a second connecting flange, a second guide rod, and a second unpowered roller. The second connecting flange is rotatably mounted on the side wall of the tail housing via a second rotating shaft. Multiple second unpowered rollers are rotatably mounted on the top of the tail housing, and two second guide rods are fixedly mounted on the top of the tail housing.

[0010] In the aforementioned forklift fork carriage welding positioner fixture, preferably, the fork carriage fixture includes a fixture base plate, rollers, guide plates, stops, and flange connecting plates. The fixture base plate has a rectangular frame structure. A flange connecting plate is fixed on each of the two wide sides of the fixture base plate. Two stops are fixed on one of the long sides of the fixture base plate. An mounting plate is formed in the middle of the other long side. The clamping mechanism is fixed on the mounting plate. A guide plate is fixed on each of the two long sides of the fixture base plate. Multiple rollers are also rotatably mounted on the fixture base plate.

[0011] In the aforementioned forklift fork carriage welding positioner fixture, preferably, the clamping mechanism includes a cylinder, a clamping head, a second base, and linear slide rails. The cylinder and two linear slide rails are fixed on the second base. The second base is fixed to the mounting plate by a bolt assembly. The clamping head is fixed to the piston rod end of the cylinder. The two sides of the clamping head are slidably connected to the two linear slide rails respectively.

[0012] In the aforementioned forklift fork carriage welding positioner tooling, preferably, a bellows cover is installed between the two linear slide rails, and a cylinder protective cover is provided on the outer cover of the cylinder.

[0013] Compared with existing technologies, this utility model includes a positioner head device and a positioner tail device, with a fork carriage fixture installed between the positioner head device and the positioner tail device. The fork carriage fixture is equipped with a clamping mechanism. The fork carriage fixture of this utility model can support forklift fork carriages of various lengths, effectively improving the applicability of this utility model. After the forklift fork carriage is adjusted to the correct position, it can be quickly fixed to the fork carriage fixture using the clamping mechanism. Then, the positioner head device can drive the fork carriage fixture to rotate, thereby adjusting the forklift fork carriage to a position convenient for welding repair. The fork carriage fixture of this utility model adopts a rectangular frame structure, which can fully expose the points to be welded on the forklift fork carriage, facilitating welding repair. This utility model has the advantages of wide applicability, simple structure, and simple operation, effectively improving welding repair efficiency and ensuring the stability of welding repair quality. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of this utility model;

[0015] Figure 2 It is an isometric view of the positioner head assembly after the head housing has been removed;

[0016] Figure 3 It is an isometric view of the detection disc;

[0017] Figure 4 This is an isometric drawing of the positioner tail assembly;

[0018] Figure 5 It is an isometric drawing of the fork carriage tooling;

[0019] Figure 6 This is an isometric view of the clamping mechanism.

[0020] Explanation of reference numerals in the attached drawings: 1. Positioner head assembly; 11. Gear motor; 12. First base; 13. Head housing; 14. Output shaft connecting gear; 15. Driven gear; 16. First connecting flange; 17. Rotating shaft; 18. First unpowered roller; 19. First guide rod; 2. Positioner tail assembly; 21. Tail housing; 22. Second connecting flange; 23. Second guide rod; 24. Second unpowered roller; 3. Forklift fixture; 31. Fixture base plate; 32. Roller; 33. Guide plate; 34. Stop block; 35. Flange connecting plate; 36. Mounting plate; 47. Clamping mechanism; 41. Cylinder guard; 42. Cylinder; 43. Clamping head; 44. Second base; 45. Linear slide rail; 46. Bellows cover; 5. Detection disc; 51. Sensor bracket; 52. Sensor; 53. Positioning hole. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] Embodiments of this utility model: such as Figures 1-6 As shown, a forklift fork carriage welding positioner tooling includes a positioner head device 1 and a positioner tail device 2. A fork carriage tooling 3 is installed between the positioner head device 1 and the positioner tail device 2. A clamping mechanism 4 is provided on the fork carriage tooling 3.

[0023] The positioner head device 1 is equipped with a power unit, which can drive the fork carriage fixture 3 to rotate. The fork carriage fixture 3 is used to support the forklift fork carriage, and the clamping mechanism 4 can fix the forklift fork carriage on the fork carriage fixture 3. During the repair welding, the fork carriage fixture 3 and the forklift fork carriage on it can be rotated together to a suitable angle for the repair welding operation as needed, thereby improving the repair welding efficiency.

[0024] Specifically, in this embodiment, the displacement head device 1 includes a geared motor 11, a first base 12, a head housing 13, an output shaft connecting gear 14, a driven gear 15, and a first connecting flange 16. The first base 12 is fixed inside the head housing 13, the geared motor 11 is fixed on the top of the first base 12, the output shaft connecting gear 14 is fixed on the output shaft of the geared motor 11, the driven gear 15 is rotatably mounted on the side wall of the head housing 13 via a rotating shaft 17, and the first connecting flange 16 is fixedly mounted on the rotating shaft 17. The driven gear 15 meshes with the output shaft connecting gear 14.

[0025] The geared motor 11 consists of a gear reducer and a motor. The geared motor 11 is a commercially available product and can be purchased directly. The geared motor 11 is fixed to the top of the first base 12 by four bolt assemblies. The first base 12 is fixed to the bottom plate inside the machine head housing 13 by bolt assemblies. The rotating shaft 17 is rotatably mounted on the machine head housing 13 by bearings. The bearings ensure that the rotating shaft 17 rotates smoothly.

[0026] Driven gear 15 is located directly above output shaft connecting gear 14. When geared motor 11 is working, it drives driven gear 15 to rotate through output shaft connecting gear 14. Driven gear 15 drives rotating shaft 17 and first connecting flange 16 on rotating shaft 17 to rotate synchronously. First connecting flange 16 drives fork carriage tooling 3 to rotate, thereby realizing the angle adjustment of forklift fork carriage.

[0027] Furthermore, a detection disk 5 is provided on the rotating shaft 17. The detection disk 5 is fixedly connected to the driven gear 15 by bolts. A sensor bracket 51 is provided on the top of the geared motor 11. The sensor bracket 51 is an L-shaped bracket. The vertical section of the sensor bracket 51 is parallel to the detection disk 5, and a through hole is opened on the vertical section. One end of the rotating shaft 17 passes through the through hole. Three sensors 52 are installed on the sensor bracket 51, and three positioning holes 53 are opened on the detection disk 5.

[0028] To facilitate the installation of the detection disc 5, three arc-shaped mounting holes 55 are equally spaced around the central mounting hole 54 of the detection disc 5 in the circumferential direction. Three circular mounting holes (not shown in the figure) are also provided on the driven gear 15. Bolts are passed through the circular mounting holes on the driven gear 15 and the arc-shaped mounting holes 55 on the detection disc 5, and then tightened with nuts to secure them. The arc-shaped mounting holes 55 improve the installation efficiency of the detection disc 5 and solve the problem of misalignment of the holes.

[0029] In this embodiment, of the three positioning holes 53 on the detection disk 5, two are axially oriented, and the center distance between these two axially oriented positioning holes 53 and the mounting hole 54 at the center of the detection disk 5 is different. The third positioning hole 53 is radially oriented, meaning it is located on the circumferential surface of the detection disk 5. The three sensors 52 on the sensor bracket 51 cooperate with the three positioning holes 53 to detect the 0°, 90°, and 180° angular positions of the detection disk 5. It should be noted that only one of the three sensors 52 is shown in the figure; the other two sensors 52 are not shown.

[0030] The head housing 13 is also equipped with a controller, which is a commercially available product that can be purchased directly. The controller is not shown in the figure. The controller is electrically connected to the geared motor 11 and three sensors 52. Three control switches are installed on the outer wall of the head housing 13. The control switches are not shown in the figure. The three control switches are also electrically connected to the controller. The three control switches are used to adjust the detection disc 5 to 0°, 90° and 180° respectively.

[0031] Furthermore, a plurality of first unpowered rollers 18 are rotatably mounted on the top of the head housing 13, and two first guide rods 19 are fixedly mounted on the top of the head housing 13.

[0032] In this embodiment, a downward-facing recess is formed on the top side of the machine head housing 13 away from the fork carriage fixture 3. A relatively long first unpowered roller 18 is rotatably mounted in this recess via a bracket. Two shorter first unpowered rollers 18 are mounted on the upper edge of the side wall of the machine head housing 13 near the fork carriage fixture via a bracket. Multiple grooves are formed on the top of the machine head housing 13; specifically, eight grooves are formed in this embodiment, arranged in two rows of four grooves each. A shorter first unpowered roller 18 is rotatably mounted in each of the eight grooves. In this embodiment, rows are parallel to the fork carriage movement direction, and rows are perpendicular to the fork carriage movement direction. The axial direction of all the first unpowered rollers 18 is perpendicular to the fork carriage movement direction.

[0033] Two first guide rods 19 are used to guide the forklift fork carriages, ensuring that each forklift fork carriage is positioned consistently after moving onto the chuck housing 13, and also guaranteeing that the forklift fork carriage guides can land accurately on the fork carriage tooling 3. The middle sections of the two first guide rods 19 are parallel, and the two ends of the two first guide rods 19 are outwardly flared in a V-shape.

[0034] By setting the first unpowered roller 18, the forklift fork carriage can be automatically transferred to the positioner head device 1 by the previous process conveyor line without the need for hoisting, and the forklift fork carriage can be easily moved manually.

[0035] By connecting the output shaft gear 14 and the driven gear 15, the installation height of the geared motor 11 can be effectively reduced. This allows for a greater distance between the top of the geared motor 11 and the top plate of the head housing 13, thus providing sufficient space for the installation of the first unpowered roller 18.

[0036] The displacement tail device 2 includes a tail housing 21, a second connecting flange 22, a second guide rod 23, and a second unpowered roller 24. The second connecting flange 22 is rotatably mounted on the side wall of the tail housing 21 via a second rotating shaft. Multiple second unpowered rollers 24 are rotatably mounted on the top of the tail housing 21, and two second guide rods 23 are fixedly mounted on the top of the tail housing 21.

[0037] The tail housing 21 has the same dimensions as the head housing 13. The arrangement of the second unpowered roller 24 on the tail housing 21 is the same as that of the first unpowered roller 18 on the head housing 13. The style and arrangement of the second guide rod 23 are also the same as those of the first guide rod 19. The displacement tail device 2 has no power source, and the second connecting flange 22 rotates passively. The second connecting flange 22 is coaxially arranged with the first connecting flange 16.

[0038] Furthermore, the fork carriage fixture 3 includes a fixture base plate 31, rollers 32, guide plates 33, stops 34, and flange connecting plates 35. The fixture base plate 31 has a rectangular frame structure, and a flange connecting plate 35 is fixed on each of the two wide sides of the fixture base plate 31. One flange connecting plate 35 is fixedly connected to the first connecting flange 16 by bolts, and the other flange connecting plate 35 is connected to the second connecting flange 22 by bolts.

[0039] The tooling base plate 31 adopts a rectangular frame structure to expose the weld seam on the back of the forklift fork carriage, which is convenient for welding after flipping 180°.

[0040] Two stops 34 are fixed on one of the long sides of the tooling base plate 31, and a mounting plate 36 is formed in the middle of the other long side. The clamping mechanism 4 is fixed to the mounting plate 36 by bolts. A guide plate 33 is fixed on each of the two long sides of the tooling base plate 31. Multiple rollers 32 are also rotatably mounted on the tooling base plate 31.

[0041] The number and position of the rollers 32 on the tooling base plate 31 are arranged according to requirements, and must be able to support the two long sides of the forklift fork carriage. In this embodiment, a total of three rows of rollers 32 are provided, so that the tooling base plate 31 is compatible with both small-tonnage and large-tonnage fork carriages of various heights, achieving full product coverage.

[0042] Two guide plates 33 are used to adjust the position of the forklift fork carriage. When the material in the previous process is tilted, the forklift fork carriage can be automatically straightened to prevent it from colliding with the tooling fixture components and causing damage.

[0043] Both stops 34 have grooves on their sides facing the clamping mechanism 4. When the clamping mechanism 4 pushes the forklift fork carriage, one long side of the forklift fork carriage gets stuck in the grooves on the two stops 34, so that the forklift fork carriage will not fall off the tooling base plate 31 after it is rotated 180°.

[0044] The clamping mechanism 4 includes a cylinder 42, a clamping head 43, a second base 44, and linear slide rails 45. The cylinder 42 and two linear slide rails 45 are fixed on the second base 44. The second base 44 is fixed to the mounting plate 36 by bolt assembly. The clamping head 43 is fixed to the piston rod end of the cylinder 42. The two sides of the clamping head 43 are slidably connected to the two linear slide rails 45 respectively.

[0045] Two linear guide rails 45 are arranged in parallel, and the lower ends of the clamping heads 43 on both sides slide against the side walls of the two linear guide rails 45 respectively. The clamping heads 43 adopt a contour-following design to cooperate with the serrated structure of the crossbeam on the forklift fork carriage. The clamping heads 43 also have a groove for clamping the other long side of the forklift fork carriage, so that it will not separate from the clamping heads 43 after being rotated 180°.

[0046] A bellows cover 46 is installed between the two linear slide rails 45, and a cylinder protective cover 41 is provided on the outside of the cylinder 42. The bellows cover 46 can prevent welding fumes from entering and causing increased friction, jamming, or damage.

[0047] The working principle of this utility model is as follows: The forklift fork carriage processed in the previous process is conveyed to the positioner head device 1 through the conveyor roller. The forklift fork carriage is manually pulled onto the fork carriage fixture 3. When the forklift fork carriage is moved to the appropriate position, the cylinder 42 is manually activated. The cylinder 42 pushes the forklift fork carriage, and one long side of the forklift fork carriage abuts against two stops 34 and is locked into their grooves. The other long side of the forklift fork carriage is locked into the groove on the clamping head 43. At this time, the forklift fork carriage is effectively fixed on the fork carriage fixture 3.

[0048] The unwelded areas are manually inspected. The fork carriage fixture 3 is rotated to the required angle via a control switch. For example, if the area to be welded requires a 90° rotation of the fork carriage, the corresponding control switch is pressed. The controller activates the geared motor 11, which in turn drives the driven gear 15 through the output shaft gear 14. The rotating shaft 17, detection disc 5, and first connecting flange 16 rotate synchronously. When the positioning hole 53 at the 90° position aligns with the corresponding sensor 52, the sensor 52 sends a signal to the controller, which then stops the geared motor 11. At this point, the fork carriage fixture 3 has rotated the fork carriage 90°. The operator can then perform the welding operation. After welding, the control switch corresponding to 0° is pressed, causing the fork carriage to return to its initial position. Then, the piston rod of the control cylinder 42 retracts, and the operator manually moves the fork carriage to the positioner tail unit 2, and then to the next work station.

[0049] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A tooling for welding a positioner on a forklift fork carriage, comprising a positioner head device (1) and a positioner tail device (2), characterized in that: A fork carriage fixture (3) is installed between the shift head device (1) and the shift tail device (2), and a clamping mechanism (4) is provided on the fork carriage fixture (3).

2. The forklift fork carriage welding positioner tooling according to claim 1, characterized in that: The displacement head device (1) includes a geared motor (11), a first base (12), a head housing (13), an output shaft connecting gear (14), a driven gear (15), and a first connecting flange (16). The first base (12) is fixed inside the head housing (13). The geared motor (11) is fixed on the top of the first base (12). The output shaft connecting gear (14) is fixed on the output shaft of the geared motor (11). The driven gear (15) is rotatably mounted on the side wall of the head housing (13) via a rotating shaft (17). The first connecting flange (16) is fixedly mounted on the rotating shaft (17). The driven gear (15) meshes with the output shaft connecting gear (14).

3. The forklift fork carriage welding positioner tooling according to claim 2, characterized in that: The rotating shaft (17) is provided with a detection disk (5), which is fixedly connected to the driven gear (15) by bolts. The top of the geared motor (11) is provided with a sensor bracket (51), which is an L-shaped bracket. The vertical section of the sensor bracket (51) is parallel to the detection disk (5), and a through hole is opened on the vertical section. One end of the rotating shaft (17) passes through the through hole. Three sensors (52) are installed on the sensor bracket (51), and three positioning holes (53) are opened on the detection disk (5).

4. The forklift fork carriage welding positioner tooling according to claim 3, characterized in that: Multiple first unpowered rollers (18) are rotatably mounted on the top of the machine head housing (13), and two first guide rods (19) are fixed on the top of the machine head housing (13).

5. The forklift fork carriage welding positioner tooling according to claim 1, characterized in that: The displacement tail device (2) includes a tail housing (21), a second connecting flange (22), a second guide rod (23), and a second unpowered roller (24). The second connecting flange (22) is rotatably mounted on the side wall of the tail housing (21) via a second rotating shaft. Multiple second unpowered rollers (24) are rotatably mounted on the top of the tail housing (21), and two second guide rods (23) are fixedly mounted on the top of the tail housing (21).

6. The forklift fork carriage welding positioner tooling according to claim 1, characterized in that: The forklift fixture (3) includes a fixture base plate (31), rollers (32), guide plates (33), stops (34), and flange connecting plates (35). The fixture base plate (31) is a rectangular frame structure. A flange connecting plate (35) is fixed on each of the two wide sides of the fixture base plate (31). Two stops (34) are fixed on one of the long sides of the fixture base plate (31), and a mounting plate (36) is formed in the middle of the other long side. The clamping mechanism (4) is fixed on the mounting plate (36). A guide plate (33) is fixed on each of the two long sides of the fixture base plate (31). A plurality of rollers (32) are also rotatably mounted on the fixture base plate (31).

7. The forklift fork carriage welding positioner tooling according to claim 6, characterized in that: The clamping mechanism (4) includes a cylinder (42), a clamping head (43), a second base (44), and linear slide rails (45). The cylinder (42) and two linear slide rails (45) are fixed on the second base (44). The second base (44) is fixed on the mounting plate (36) by bolt assembly. The clamping head (43) is fixed to the piston rod end of the cylinder (42). The two sides of the clamping head (43) are slidably connected to the two linear slide rails (45) respectively.

8. The forklift fork carriage welding positioner tooling according to claim 7, characterized in that: A bellows cover (46) is installed between the two linear slide rails (45), and a cylinder guard (41) is provided on the outside of the cylinder (42).

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