Processing method of forklift overhead guard stand column

Abstract

The invention belongs to the technical field of forklift manufacturing, and discloses a machining method for a forklift overhead guard stand column, and cutting and hole cutting of raw materials are integrally achieved through a laser pipe cutting machine. Hole cutting and cutting-off of the rectangular pipe are achieved through the laser pipe cutting machine, multiple procedures such as sawing machine sawing, punching machine punching and machine tool drilling are not used any more, the clamping frequency and the transferring frequency are reduced, the production efficiency is improved, the technological process and steps are simplified by introducing laser cutting equipment, and the production cost is reduced. The traditional sawing machine blanking and punching machine punching are replaced by laser blanking.

Description

Technical Field

[0001] The present invention relates to the technical field of forklift manufacturing, and specifically, to a processing method for the upright column of a forklift overhead guard. Background Art

[0002] The overhead guard is a safety protection device in a forklift, which can prevent the operator from being injured by falling objects and ensure the safety of the driver. Currently, there are two common methods for manufacturing the upright column of the overhead guard. The first manufacturing process is: rectangular pipe sawing - rectangular pipe punching - rectangular pipe drilling - rectangular pipe bending - overhead guard welding. The second manufacturing process is: rectangular pipe sawing - rectangular pipe drilling - rectangular pipe bending - overhead guard welding.

[0003] However, whether it is drilling after punching in the first above-mentioned scheme or only drilling in the second scheme, the following problems exist;

[0004] 1. The increase in the number of transfer times and clamping times. When drilling, the holes are not in the same plane, and the rectangular pipe needs to be flipped and clamped again for drilling. The repeated positioning and clamping result in low production efficiency. Therefore, how to reduce the transfer times and clamping times during the production of the overhead guard upright column and improve the production rhythm has become a research topic for technicians in this industry.

[0005] 2. The investment in drilling machines or the investment in punching presses and punching dies. If a full-process drilling processing scheme is adopted, it will undoubtedly reduce the processing efficiency. If the punching press stamping method is used, it means that the punching dies need to be invested again after the product is updated and iterated. Moreover, with the change of the forklift tonnage, different models of upright columns are used for different tonnages, and the investment in die costs will only become higher and higher. Therefore, how to balance the production input cost and reduce the input cost in product production and manufacturing is also a research topic for technicians in this industry. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a processing method for the upright column of a forklift overhead guard with fewer transfer and clamping times, improving the processing efficiency to solve the above problems in the prior art.

[0007] The present invention provides a processing method for the upright column of a forklift overhead guard, which uses a laser pipe cutting machine to integrally realize the cutting and hole cutting of raw materials.

[0008] According to the present invention, further, the processing method includes the following steps:

[0009] Step S1, laser cutting of rectangular pipe:

[0010] Put the raw material into the loading device of the laser pipe cutting machine;

[0011] The loading device of the laser pipe cutting machine transports the raw material to the conveying device of the laser pipe cutting machine;

[0012] The conveying device of the laser pipe cutting machine moves the raw materials to the laser pipe cutting machine body through longitudinal conveyance.

[0013] The laser pipe cutting machine body conveys the raw materials horizontally to the laser pipe cutting machine clamping device.

[0014] The laser cutting device of the laser pipe cutting machine performs hole cutting and cutting operations on the raw materials clamped by the laser pipe cutting machine clamping device.

[0015] Step S2, bending of rectangular pipes:

[0016] Transfer the raw materials after completing Step S1 to the pipe bending area, and use a pipe bender to form them into the top guard frame columns; Step S3, welding of the top guard frame:

[0017] Place the bent columns into the corresponding tooling and weld them with other parts to form the top guard frame weldment.

[0018] According to the present invention, further, the laser pipe cutting machine body is provided with rollers and a pushing device to realize the horizontal conveyance of the raw materials thereon.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In the present invention, by using a laser pipe cutting machine, hole cutting and cutting of rectangular pipes are realized, and multiple processes such as sawing with a sawing machine, punching with a punching machine, and drilling with a machine tool are no longer used, reducing the number of clamping times and transfer times, improving production efficiency, simplifying the process flow and steps by introducing laser cutting equipment, and replacing traditional sawing and punching with laser blanking. Description of the Drawings

[0021] Figure 1 Schematic diagram of the top guard frame column after hole cutting and pipe bending;

[0022] Figure 2 For Figure 1 Left view;

[0023] Figure 3 For Figure 2 Left view;

[0024] Figure 4 For Figure 1 Right view;

[0025] Figure 5 Flow chart of the processing method of the forklift top guard frame column of the present invention;

[0026] Figure 6 Schematic diagram of the welded state of the 3.5T internal combustion forklift top guard frame;

[0027] Figure 7 Schematic diagram of the laser pipe cutting machine.

[0028] Among them, the reference numerals are as follows:

[0029] 1 - Loading device of laser pipe cutting machine, 2 - Conveying device of laser pipe cutting machine, 3 - Clamping device of laser pipe cutting machine, 4 - Laser cutting device of laser pipe cutting machine, 5 - Laser pipe cutting machine body. Specific embodiments

[0030] The following further elaborates on the technical solutions proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0031] The forklift overhead guard post mentioned in this embodiment is the overhead guard post used for 3.5T internal combustion forklifts.

[0032] Combined with Figure 1-7 As shown, a processing method for a forklift overhead guard post includes the following steps:

[0033] Step S1, laser cutting of rectangular pipes:

[0034] Use a crane to place the bundled raw material rectangular pipes on the loading device 1 of the laser pipe cutting machine, manually remove the bundling bags, and the loading device 1 of the laser pipe cutting machine will transfer the rectangular pipes one by one to the conveying device 2 of the laser pipe cutting machine. The conveying device 2 of the laser pipe cutting machine is equipped with a gripper to transfer the rectangular pipes to the laser pipe cutting machine body 5 to achieve longitudinal conveying; the laser pipe cutting machine body 5 is equipped with rollers and a pushing device to push the rectangular pipes to the clamping device 3 of the laser pipe cutting machine to achieve lateral conveying; the clamping device 3 of the laser pipe cutting machine clamps the rectangular pipes, and the laser cutting device 4 of the laser pipe cutting machine performs hole cutting and cutting operations on the rectangular pipes;

[0035] Step S2, bending of rectangular pipes:

[0036] Transfer the rectangular pipes after hole cutting and cutting to the bending area, and use a bending machine to bend them into shape to obtain the overhead guard post; Step S3, welding of the overhead guard:

[0037] Place the bent posts on the corresponding tooling and weld them with other parts to form the overhead guard weldment. Please refer to Figure 6 .

[0038] The working principle of the present invention is: relying on the loading device, conveying device, clamping device, and laser cutting device of the laser pipe cutting machine, it realizes the integration of transmission, cutting, and hole cutting, shortens the transmission time between each process step. Compared with the prior art, there is no need to transfer the cut pipes to another station for hole cutting, which simplifies the transmission process while ensuring or even improving the process accuracy and saving the overall processing cost.

[0039] The above are the preferred embodiments of the present invention. Those of ordinary skill in the art can also make various transformations or improvements based on this. Without departing from the general concept of the present invention, these transformations or improvements should fall within the scope of protection required by the present invention.

Claims

1. A method for processing a forklift overhead guard column, characterized in that: Use laser tube cutting machine to realize cutting and hole cutting of raw materials.

2. The method for processing a forklift overhead guard column according to claim 1, characterized in that: The following steps are involved: Step S1, rectangular tube cutting: Put the raw materials into the feeding device of the laser tube cutting machine; The laser tube cutting machine feeding device transfers the raw materials to the laser tube cutting machine conveying device; The conveying device of the laser tube cutting machine moves the raw materials to the laser tube cutting machine body through longitudinal conveying; The laser tube cutting machine body transports the raw materials horizontally to the clamping device of the laser tube cutting machine; The laser cutting device of the laser tube cutting machine performs cutting and cutting operations on the raw materials clamped by the clamping device of the laser tube cutting machine; Step S2, rectangular tube bending: The raw materials after step S1 are transferred to the pipe bending area and bent into shape using a pipe bending machine to obtain the roof guard column; step S3, the roof guard is welded: Put the bent columns into the corresponding tooling and weld them together with other parts to form the roof guard.

3. The method for processing a forklift overhead guard column according to claim 2, characterized in that: The laser tube cutting machine body is provided with a roller and a pushing device to realize the lateral transportation of the raw materials thereon.

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