Positioning device for width of inner cavity of stand column of forklift portal frame

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By designing a positioning device for forklift gantry columns, the drive cylinder and positioning mechanism are used to achieve accurate, automatic and general positioning of the inner cavity width of the forklift gantry columns, the problem of low automation and generalization of the existing positioning tooling is solved and production efficiency is improved.

CN222779044UActive Publication Date: 2025-04-22LONKING SHANGHAI FORKELEVATOR

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Patent Information

Application Number: CN202421381904.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-17
Publication Date: 2025-04-22
Estimated Expiration: 2034-06-17

AI Technical Summary

Technical Problem

The existing positioning tooling has low degree of automation and universalization during welding, resulting in high labor intensity for production employees when welding and positioning the forklift gantry column.

Method used

A positioning device including a base, a driving mechanism, a driving plate, a positioning mechanism and a barrier mechanism is designed. By driving the cylinder to drive the drive plate in a linear motion, the positioning block of the positioning mechanism locates the width of the forklift gantry column cavity, and the barrier mechanism limits the movement of the drive plate by adjusting the position of the rotary plate to realize the positioning of the inner cavity of the forklift gantry column cabin of different widths.

Benefits of technology

Accurate, automatic and universal positioning of the inner cavity width of the forklift gantry column is achieved, reducing the labor intensity of production employees and improving production efficiency.

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Abstract

The utility model provides a positioning device for the width of an inner cavity of a mast stand column of a forklift, which comprises a base, and a driving mechanism, a driving plate driven by the driving mechanism, a positioning mechanism for positioning the width of the inner cavity of the mast stand column and a blocking mechanism for limiting the moving distance of the driving plate are sequentially arranged on the base, the two sides of the driving plate are each provided with a smooth step-shaped structure, and the positioning mechanism comprises two positioning assemblies which are located on the two sides of the driving plate and move oppositely under the action of the driving plate. The utility model has the following beneficial effects: the driving cylinder in the driving mechanism provides power to drive the connecting shaft and the driving plate to do linear motion, so that the positioning mechanism moves towards two sides to achieve the purpose of positioning the width of the inner cavity of the upright post of the portal frame of the forklift; and meanwhile, the moving position of the driving plate is blocked by adjusting the position of a transfer plate in the blocking mechanism, so that the purpose that the positioning mechanism can position inner cavities of the forklift portal stand columns with different widths is achieved.

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Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a positioning device for the inner cavity width of a forklift door frame column. Background Art

[0002] At present, in the engineering machinery industry, in order to ensure the welding quality of products, the positioning tooling used for welding has been widely promoted and applied, because it can accurately ensure the dimensional stability of the product, reduce human errors, and greatly improve production efficiency; similar to the welding of forklift mast columns, the requirements for its inner cavity width are relatively high. At the same time, combined with the characteristics of the forklift industry, there are many types of forklift masts, but the existing welding positioning tooling not only has a low degree of automation, but also has a low degree of commonality. Therefore, the labor intensity of front-line production employees is relatively high when welding and positioning the forklift mast columns. Therefore, it is necessary to improve the automation and commonality of positioning tooling in the production process. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a positioning device for the inner width of a forklift mast column, so as to solve the problem that the existing positioning tooling during welding not only has a low degree of automation but also has a low degree of commonality.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] A positioning device for the inner cavity width of a forklift gantry column comprises a base, on which a driving mechanism, a driving plate driven by the driving mechanism, a positioning mechanism for positioning the inner cavity width of the gantry column and a blocking mechanism for limiting the moving distance of the driving plate are sequentially provided, wherein both sides of the driving plate are provided with smooth step-like structures, the positioning mechanism comprises two positioning components which are located on both sides of the driving plate and move in opposite directions under the action of the driving plate, the positioning component comprises a second support seat mounted on the base, a support plate which is located on the second support seat and can move on the second support seat, a roller which can be rollingly connected to the driving plate is provided on the side of the support plate facing the driving plate, and a positioning block is provided on the side of the support plate opposite to the driving plate.

[0006] In one embodiment of the utility model, the driving mechanism includes a first support frame installed on the base, a driving cylinder is installed on the first support frame, and the driving cylinder is movably connected to the driving plate through a connecting shaft.

[0007] In one embodiment of the utility model, a first support seat installed on the base is provided below the driving plate, a first guide rail is provided on the top side of the first support seat, and a first slider installed on the driving plate is slidably connected to the first guide rail. This technical solution can make the movement of the driving plate more stable through the action of the first slider sliding on the first guide rail.

[0008] In one embodiment of the utility model, the roller is installed on the support plate through a rotating shaft, each of the support plates is provided with two positioning blocks, and a tension spring is provided on the side of the support plate, one end of the tension spring is installed on the second support seat, and the other end of the tension spring is installed on the support plate. The tension spring in this technical solution can reset the support plate in the positioning assembly after the driving plate returns to its original position.

[0009] In one embodiment of the utility model, a second slider is installed on the top side of the second support seat, and the second slider is slidably connected to a second guide rail installed on the support plate. This technical solution can make the movement of the support plate more stable through the action of the second guide rail sliding in the second slider.

[0010] In one embodiment of the utility model, the blocking mechanism includes a second support frame, a rotating plate is movably connected inside the second support frame, a first blocking block is provided on the top side of the rotating plate, and a second blocking block is provided on the bottom side of the rotating plate. The first blocking block and the second blocking block in this technical solution can limit the moving position of the driving plate.

[0011] In one embodiment of the utility model, the rotating plate is provided with a first socket and a second socket respectively corresponding to the first blocking block and the second blocking block, the second supporting frame is provided with a third socket, and the second supporting frame is also provided with a pin, and the pin passes through the third socket and can be plugged into the first socket or the second socket. This technical solution can fix the rotating plate on the second supporting frame by passing the pin through the third socket and plugging it into the first socket or the second socket.

[0012] As described above, the utility model is a positioning device for the inner cavity width of a forklift mast column, which has the following beneficial effects: the utility model provides power through the driving cylinder in the driving mechanism to drive the connecting shaft and the driving plate to move linearly, so that the positioning mechanism moves to both sides to achieve the purpose of positioning the inner cavity width of the forklift mast column, and at the same time, the position of the transfer plate in the blocking mechanism is adjusted to block the moving position of the driving plate so that the positioning mechanism can position the inner cavity of the forklift mast column of different widths, and after the positioning is completed, the driving mechanism removes the power to make the connecting shaft and the driving plate return to their original positions, and the support plate in the positioning mechanism returns to the state before positioning under the elastic force of the tension spring. Therefore, the utility model can accurately, automatically and universally limit the inner cavity width of the forklift mast column, uses the driving and return mode of the cylinder, has a stable structure and simple operation, and can be applied in tooling design. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The left front view stereoscopic diagram shows the overall structure of the positioning device for the inner cavity width of the forklift mast column disclosed in the embodiment of the utility model;

[0014] Figure 2 It is a top view schematic diagram of the overall structure of the positioning device for the inner cavity width of a forklift mast column disclosed in an embodiment of the utility model;

[0015] Figure 3 Shown is a three-dimensional schematic diagram of a driving plate in a positioning device for the inner cavity width of a forklift mast column disclosed in an embodiment of the utility model;

[0016] Figure 4 The display is a positioning device for the inner cavity width of a forklift door frame column disclosed in an embodiment of the utility model. Figure 1 The enlarged schematic diagram at A in the middle;

[0017] Figure 5 Shown is a three-dimensional schematic diagram of a positioning component in a positioning device for the inner cavity width of a forklift mast column disclosed in an embodiment of the utility model;

[0018] Figure 6 Shown is a three-dimensional schematic diagram of a blocking mechanism in a positioning device for the inner cavity width of a forklift mast column disclosed in an embodiment of the utility model;

[0019] Figure 7 Shown is a three-dimensional schematic diagram of a transfer plate, a first blocking block and a second blocking block of a positioning device for the inner cavity width of a forklift mast column disclosed in an embodiment of the utility model.

[0020] Component number description

[0021] 1. Base; 2. Driving mechanism; 201. First support frame; 202. Driving cylinder; 203. Connecting shaft; 3. Driving plate; 4. Positioning mechanism; 401. Positioning block; 402. Second support seat; 403. Support plate; 404. Roller; 405. Rotating shaft; 406. Tension spring; 5. Blocking mechanism; 501. Second support frame; 502. Rotating plate; 503. First blocking block; 504. Second blocking block; 505. Latch; 6. First support seat; 7. First guide rail; 8. First slider; 9. Second slider; 10. Second guide rail; 11. First socket; 12. Second socket. DETAILED DESCRIPTION

[0022] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] See also Figure 1 and Figure 2 The utility model provides a positioning device for the inner cavity width of a forklift gantry column, comprising a base 1, on which a driving mechanism 2, a driving plate 3 driven by the driving mechanism 2, a positioning mechanism 4 for positioning the inner cavity width of the gantry column and a blocking mechanism 5 for limiting the moving distance of the driving plate 3 are sequentially arranged. The driving mechanism 2 comprises a first support frame 201 mounted on the base 1, on which a driving cylinder 202 is mounted, and the driving cylinder 202 is movably connected to the driving plate 3 through a connecting shaft 203, wherein the driving cylinder 202 is a double-acting cylinder, and the driving plate 3 can be pushed and pulled through a valve, so that the positioning mechanism 4 can automatically return after completing the positioning action, and the connecting shaft 203 is movably connected to the driving plate 3 through a first pin shaft, and the driving plate 3 performs a linear motion under the drive of the driving cylinder 202, driving the moving components on the positioning mechanism 4 to move to both sides, thereby positioning the inner cavity width of the forklift gantry column.

[0024] exist Figures 1 to 4In the figure, both sides of the driving plate 3 are provided with a smooth stepped structure, wherein the two sides of the end of the driving plate 3 facing the blocking mechanism 5 are provided with a first inclined surface corresponding to the roller 404 mentioned below, and the two sides of the driving plate 3 are also provided with a second inclined surface connected to the first inclined surface corresponding to the roller 404 mentioned below, and the inclination of the first inclined surface is greater than the inclination of the second inclined surface. When different positions of the driving plate 3 contact with the positioning mechanism 4, the positioning mechanism 4 can position the inner cavity of the forklift mast column of different widths, and a first supporting seat 6 installed on the base 1 is provided below the driving plate 3, and a first guide rail 7 is provided on the top side of the first supporting seat 6, and a first slider 8 installed on the driving plate 3 is slidably connected to the first guide rail 7, and the driving plate 3 can be moved more stably by the first slider 8 sliding on the first guide rail.

[0025] exist Figure 1 and Figure 5 In the embodiment, the positioning mechanism 4 includes two positioning components which are located on both sides of the driving plate 3 and move in opposite directions under the action of the driving plate 3. The positioning component includes a second support seat 402 installed on the base 1, a support plate 403 which is located on the second support seat 402 and can move on the second support seat 402, a second slider 9 is installed on the top side of the second support seat 402, a second guide rail 10 installed on the support plate 403 is slidably connected in the second slider 9, a roller 404 which can be rollingly connected to the driving plate 3 is provided on the side of the support plate 403 facing the driving plate 3, the roller 404 is installed on the support plate 403 through a rotating shaft 405, a positioning block 401 is provided on the side of the support plate 403 opposite to the driving plate 3, each support plate 403 is provided with two positioning blocks 401, and the middle position of the positioning block 401 is semicircular in shape, and a tension spring 406 is provided on the side of the support plate 403, one end of the tension spring 406 is installed on the second support seat 402, and the other end of the tension spring 406 is installed on the support plate 403;

[0026] Among them, when the driving plate 3 makes a linear motion under the action of the driving cylinder 202, it directly contacts the roller 404 on the positioning mechanism 4. Through the special structure of the roller 404 and the driving plate 3, the support plate 403 in the positioning mechanism 4 is subjected to a force perpendicular to the linear motion direction of the driving plate 3, so that the two support plates 403 move to both sides through the second slider 9 and the second guide rail 10, so that the positioning block 401 positions the inner cavity width of the forklift mast column. When the positioning is completed, the driving cylinder 202 of the driving mechanism 2 returns to its position, thereby driving the driving plate 3 back to its initial position. At this time, the tension spring 406 on the positioning mechanism 4 pulls the support plate 403 back to the unpositioned position to facilitate the forklift mast column to be separated from the positioning tooling after welding.

[0027] exist Figure 6 and Figure 7In the embodiment, the blocking mechanism 5 includes a second support frame 501, a rotating plate 502 is movably connected to the second support frame 501 through a second pin shaft, a first blocking block 503 integrally formed with the rotating plate 502 is provided on the top side of the rotating plate 502, a second blocking block 504 integrally formed with the rotating plate 502 is provided on the bottom side of the rotating plate 502, a first plug hole 11 and a second plug hole 12 are respectively provided on the rotating plate 502 corresponding to the first blocking block 503 and the second blocking block 504, a third plug hole is provided on the second support frame 501, and a latch 505 is also provided on the second support frame 501, and the latch 505 is provided on the second support frame 501. 5 can be inserted into the first plug hole 11 or the second plug hole 12 through the third plug hole, wherein the different positions to which the driving plate 3 moves are determined by the rotating plate 502 in the blocking mechanism 5. Due to the special structure of the rotating plate 502, the rotating plate 502 rotates to different positions to limit the driving plate 3 in different ways. Therefore, the blocking mechanism 5 can make the driving plate 3 stay at different positions by adjusting the position of the rotating plate 502, so that the driving plates 3 at different positions can contact with the positioning mechanism 4, so that the positioning mechanism 4 can position the inner cavities of the forklift mast columns of different widths.

[0028] Specifically, first adjust the rotating plate 502 in the blocking mechanism 5 to determine the position of the driving plate 3, turn on the driving cylinder 202 in the driving mechanism 2 to drive the driving plate 3 to make a linear motion through the connecting shaft 203, and when the driving plate 3 is blocked by the blocking mechanism 5, the linear motion is stopped. At this time, the driving plate 3 squeezes the roller 404 in the positioning mechanism 4, so that the support plate 403 in the positioning mechanism 4 moves, and finally the positioning block 401 positions the inner cavity width of the forklift mast column. After the positioning is completed, the driving cylinder 202 of the driving mechanism 2 returns to its position, thereby driving the driving plate 3 back to the initial position. At this time, the tension spring 406 on the positioning mechanism 4 pulls the support plate 403 back to the unpositioned position to facilitate the forklift mast column to be separated from the positioning tooling after welding.

[0029] The utility model provides power through the driving cylinder 202 in the driving mechanism 2 to drive the connecting shaft 203 and the driving plate 3 to move linearly, so that the positioning mechanism 4 moves to both sides to achieve the purpose of positioning the inner width of the forklift door frame column. At the same time, the position of the transfer plate 502 in the blocking mechanism 5 is adjusted to block the moving position of the driving plate 3 so that the positioning mechanism 4 can position the inner cavity of the forklift door frame column with different widths. After the positioning is completed, the driving mechanism 2 removes the power to make the connecting shaft 203 and the driving plate 3 return to their original positions, and the support plate 403 in the positioning mechanism 4 is restored to the state before positioning under the elastic force of the tension spring 406. Therefore, the utility model can accurately, automatically and universally limit the inner cavity width of the forklift door frame column, uses the driving and returning mode of the cylinder, has a stable structure and simple operation, and can be applied in tooling design.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A positioning device for the inner width of a forklift mast column, comprising a base (1), characterized in that: The base (1) is provided with a driving mechanism (2), a driving plate (3) driven by the driving mechanism (2), a positioning mechanism (4) for positioning the width of the inner cavity of the door frame column, and a blocking mechanism (5) for limiting the moving distance of the driving plate (3) in sequence; Wherein, both sides of the driving plate (3) are provided with smooth stepped structures, the positioning mechanism (4) comprises two positioning components located on both sides of the driving plate (3) and moving in opposite directions under the action of the driving plate (3), the positioning components comprising a second support seat (402) mounted on the base (1), a support plate (403) located on the second support seat (402) and movable on the second support seat (402), a roller (404) which can be rollingly connected to the driving plate (3) is provided on the side of the support plate (403) facing the driving plate (3), and a positioning block (401) is provided on the side of the support plate (403) opposite to the driving plate (3).

2. A positioning device for the inner width of a forklift mast column according to claim 1, characterized in that: The driving mechanism (2) comprises a first support frame (201) mounted on a base (1), a driving cylinder (202) being mounted on the first support frame (201), and the driving cylinder (202) being movably connected to the driving plate (3) via a connecting shaft (203).

3. A positioning device for the inner cavity width of a forklift mast column according to claim 1, characterized in that: A first support seat (6) mounted on the base (1) is provided below the driving plate (3); a first guide rail (7) is provided on the top side of the first support seat (6); and a first sliding block (8) mounted on the driving plate (3) is slidably connected to the first guide rail (7).

4. A positioning device for the inner cavity width of a forklift mast column according to claim 1, characterized in that: The roller (404) is mounted on the support plate (403) via a rotating shaft (405), each of the support plates (403) is provided with two positioning blocks (401), and a tension spring (406) is provided on the side of the support plate (403), one end of the tension spring (406) is mounted on the second support seat (402), and the other end of the tension spring (406) is mounted on the support plate (403).

5. The positioning device for the inner cavity width of a forklift mast column according to claim 1, characterized in that: A second sliding block (9) is installed on the top side of the second supporting seat (402), and a second guide rail (10) installed on the supporting plate (403) is slidably connected inside the second sliding block (9).

6. A positioning device for the inner cavity width of a forklift mast column according to claim 1, characterized in that: The blocking mechanism (5) comprises a second support frame (501), a rotating plate (502) is movably connected inside the second support frame (501), a first blocking block (503) is provided on the top side of the rotating plate (502), and a second blocking block (504) is provided on the bottom side of the rotating plate (502).

7. A positioning device for the inner width of a forklift mast column according to claim 6, characterized in that: The rotating plate (502) is provided with a first plug hole (11) and a second plug hole (12) corresponding to the first blocking block (503) and the second blocking block (504) respectively, the second supporting frame (501) is provided with a third plug hole, and the second supporting frame (501) is also provided with a latch (505), and the latch (505) passes through the third plug hole and can be plugged into the first plug hole (11) or the second plug hole (12).