Forklift frame welding deformation control device

By using electric heating plates and insulation components in combination during the welding process, the problem of deformation and cracking of forklift frames caused by rapid cooling was solved, achieving effective control of welding deformation and improving welding quality.

CN223544458UActive Publication Date: 2025-11-14HANGZHOU LIDA MASCH CO LTD
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Patent Information

Application Number
CN202422928959.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-14
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Forklift frames are prone to deformation and cracking during welding due to thermal expansion and contraction and uneven cooling rates. Especially in cold weather, the residual stress after welding is large, and existing technology lacks effective insulation mechanisms.

Method used

A welding deformation control device, including an electric heating plate and insulation components, is adopted. The electric heating plate heats and insulates the frame, and the hot air blown out by the fan and electric heating rod is used to insulate the welding area, reducing the cooling rate. The frame is fixed by clamps and double screws to prevent deformation.

Benefits of technology

It effectively reduces welding deformation and cracking. By using the insulation components and electric heating plates together, it slows down the cooling rate of the welded area, reduces residual stress, and improves welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forklift frame welding deformation control device, and belongs to the technical field of welding. Comprising a cabinet body, side plates are installed at the lower ends of the side faces of the cabinet body, heat preservation assemblies are installed on the upper surfaces of the side plates, and two symmetrically-distributed supporting plates are installed on the upper portion in the cabinet body. The forklift frame welding deformation control device has the beneficial effects that through the arrangement of the motor, the two-way lead screw, the clamping plates and the sliding blocks, a framework of the frame is conveniently fixed, so that next welding is facilitated, displacement of the framework of the frame is reduced, and deformation of the framework of the frame is reduced; heat preservation of the environment of a welding work area is achieved, so that cold air is prevented from making direct contact with the frame framework, welded welding seams of the frame framework are prevented from being cooled fast, residual stress is prevented from being large, welding deformation is effectively controlled, heating and heat preservation can be conveniently conducted on the bottom of the frame framework through the arrangement of the electric heating plate, and deformation of the frame framework can be reduced easily.
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Description

Technical Field

[0001] This application relates to the field of welding technology, and more specifically, to a forklift frame welding deformation control device. Background Technology

[0002] The forklift frame is an important component of a forklift, usually made of high-strength steel. Its main function is to support the various parts of the forklift. During the production of the forklift frame, deformation control devices are needed to fix the forklift frame (due to heat transfer and thermal expansion and contraction of materials during welding, the welded parts are prone to deformation. In order to reduce welding deformation, the forklift frame needs to be fixed).

[0003] Welding forklift frames is often time-consuming due to their complex structure. In cold weather, the welded areas cool down quickly, resulting in high residual stress and making the weld prone to deformation and cracking. Therefore, a technical measure is proposed to address the problem that existing welding deformation control devices lack insulation mechanisms, leading to high residual stress and easy deformation and cracking of the welded areas in cold weather. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a forklift frame welding deformation control device, including a cabinet. A side plate is installed on the lower side of the cabinet, and an insulation component is installed on the upper surface of the side plate. Two sets of symmetrically distributed support plates are installed inside the cabinet, and electric heating plates are installed on the support plates. Thanks to the combined use of the insulation component and the electric heating plate, the insulation effect on the frame is enhanced, effectively reducing the welding deformation of the frame.

[0006] Furthermore, the cabinet surface is provided with cabinet doors, the lower part of the cabinet is equipped with a base frame, and a controller is installed on the upper part of the side of the cabinet away from the side panel.

[0007] Furthermore, a mounting base is installed at one end of the upper surface of the cabinet, and a sliding groove is formed on the surface of the mounting base.

[0008] Furthermore, a motor is mounted on the side of the mounting base, and the motor is connected to a two-way lead screw. The two-way lead screw is rotatably connected to the mounting base, and a slider is threaded onto the two-way lead screw. A clamping plate is connected to the side of the slider. Thanks to the arrangement of the motor, the two-way lead screw, the clamping plate, and the slider, it is convenient to fix the frame of the vehicle frame, thereby facilitating the next step of welding, reducing the displacement of the frame, and reducing the deformation of the frame.

[0009] Furthermore, the lower surface of the clamping plate contacts the upper surface of the cabinet, and the slider is slidably adapted to the slide groove.

[0010] Furthermore, the insulation component includes a fan, which is fixedly installed on the upper surface of the side plate. The fan is connected to a box, which is fixedly installed in the middle position on the upper surface of the side plate. Thanks to the setting of the insulation component, the environment of the welding work area is kept warm, thereby preventing cold air from directly contacting the frame frame, preventing the welds of the frame frame from cooling too quickly, preventing large residual stress, and effectively controlling welding deformation.

[0011] Furthermore, multiple sets of evenly distributed electric heating rods are installed on the top of the box, and a connecting pipe is connected through the middle of the upper part of the box. The connecting pipe is L-shaped, and a fan plate is connected to the other end of the connecting pipe.

[0012] Furthermore, the lower part of the air plate is fixedly installed at the middle position of the upper surface of the mounting base, and multiple sets of evenly distributed air holes are opened on the side of the air plate facing the cabinet.

[0013] This utility model, through the arrangement of a motor, a two-way lead screw, clamping plates, and a slider, facilitates the fixation of the frame skeleton, thereby facilitating the next welding step, reducing the displacement and deformation of the frame skeleton, and starting the motor drives the clamping plates to move closer together and press against the frame skeleton, thus completing the fixation of the frame skeleton.

[0014] By setting up the insulation components, the environment of the welding work area is kept warm, thereby preventing cold air from directly contacting the frame frame, preventing the welds on the frame frame from cooling too quickly, preventing large residual stress, effectively controlling welding deformation, starting the fan and electric heating rod to heat the air, and then blowing the air out through the air holes to keep the welding area warm.

[0015] By setting up an electric heating plate, the bottom of the frame is heated and insulated, which helps to reduce the deformation of the frame.

[0016] By using insulation components and electric heating plates in combination, the insulation effect on the frame is enhanced, effectively reducing welding deformation of the frame. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

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

[0021] Figure 2 This is a schematic diagram of the internal structure of the cabinet of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the motor and the clamping plate;

[0023] Figure 4 This is a schematic diagram of the thermal insulation component in its separated state.

[0024] Figure label:

[0025] 1. Cabinet body; 2. Insulation components; 3. Controller; 4. Base frame; 5. Cabinet door; 6. Motor; 7. Mounting base; 8. Slide rail; 9. Side panel; 10. Electric heating plate; 11. Support plate; 12. Slider; 13. Clamping plate; 14. Two-way lead screw; 201. Fan; 202. Box body; 203. Electric heating rod; 204. Connecting pipe; 205. Air plate; 206. Vent. Detailed Implementation

[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figure 1 , Figure 2 and Figure 3 As shown, the system includes a cabinet 1, a side panel 9 installed on the lower side of the cabinet 1, an insulation component 2 installed on the upper surface of the side panel 9, two symmetrically distributed support plates 11 installed on the upper part of the cabinet 1, an electric heating plate 10 installed on the support plate 11, a cabinet door 5 on the surface of the cabinet 1, a base frame 4 installed at the lower part of the cabinet 1, a controller 3 installed on the upper part of the side of the cabinet 1 away from the side panel 9, a mounting base 7 installed on one end of the upper surface of the cabinet 1, a sliding groove 8 opened on the surface of the mounting base 7, a motor 6 installed on the side of the mounting base 7, a double-acting screw 14 connected to the motor 6, the double-acting screw 14 rotatably connected to the mounting base 7, a slider 12 threadedly connected to the double-acting screw 14, a clamping plate 13 connected to the side of the slider 12, the lower surface of the clamping plate 13 contacting the upper surface of the cabinet 1, and the slider 12 slidingly fitting with the sliding groove 8. When welding the forklift frame, the frame skeleton is first... The frame is fixed by placing the frame skeleton in the middle of the upper surface of the cabinet 1 (the two sides of the frame skeleton are parallel to the clamping plate 13). Then, the motor 6 is started by the controller 3. The motor 6 drives the bidirectional lead screw 14 to rotate. The rotation of the bidirectional lead screw 14 drives the slider 12 to move closer to each other along the slide groove 8. The slider 12 moves closer to each other, which drives the clamping plate 13 to move closer to each other. The clamping plate 13 moves closer to each other and presses against the frame skeleton, thus fixing the frame skeleton. Then, the frame skeleton is welded (the remaining skeleton is welded together). In cold weather, the welded parts cool down quickly. At this time, the frame skeleton needs to be insulated. The frame skeleton is insulated by the insulation component 2 and the electric heating plate 10. The electric heating plate 10 is started to heat the upper surface of the cabinet 1. At this time, the lower part of the frame skeleton is heated and insulated.

[0032] Reference Figure 1 and Figure 4As shown, the insulation component 2 includes a fan 201, which is fixedly installed on the upper surface of the side panel 9. The fan 201 is connected to a housing 202, which is fixedly installed in the middle of the upper surface of the side panel 9. Multiple sets of evenly distributed electric heating rods 203 are installed on the top of the housing 202. A connecting pipe 204 is L-shaped and connected through the middle of the upper part of the housing 202. The other end of the connecting pipe 204 is connected to a fan plate 205. The lower part of the fan plate 205 is fixedly installed in the middle of the upper surface of the mounting base 7, and the fan plate 205 is opened on one side facing the cabinet 1. There are multiple sets of evenly distributed air holes 206. At this time, the lower part of the frame frame is heated and insulated. The specific working method of the insulation component 2 is as follows: the fan 201 and the electric heating rod 203 are started. The fan 201 blows air into the box 202. Under the action of the electric heating rod 203, the air is heated. Then, under the action of the fan 201, the hot air enters the air plate 205 through the connecting pipe 204, and then blows out through the air holes 206. When the hot air is blown out, it heats and insulates the air in the frame frame, thereby slowing down the cooling rate of the welded parts of the frame frame.

[0033] Working principle: When welding the forklift frame, the frame skeleton is first fixed by placing it in the middle of the upper surface of the cabinet 1 (the two sides of the frame skeleton are parallel to the clamping plate 13). Then, the motor 6 is started by the controller 3. The motor 6 drives the double-acting screw 14 to rotate. The rotation of the double-acting screw 14 drives the sliders 12 to move closer together along the slide groove 8. The sliders 12 moving closer together drive the clamping plates 13 to move closer together. The clamping plates 13 move closer together and press against the frame skeleton, thus fixing the frame skeleton. Then, the frame skeleton is welded (the remaining skeleton is welded together). The arrangement of the motor 6, double-acting screw 14, clamping plate 13 and slider 12 facilitates the fixing of the frame skeleton, thereby facilitating the next welding step, reducing the displacement and deformation of the frame skeleton.

[0034] In cold weather, the welded areas cool down quickly during welding, necessitating insulation of the frame. This is achieved using insulation component 2 and electric heating plate 10. Specifically, the electric heating plate 10 heats the upper surface of cabinet 1, simultaneously heating and insulating the lower part of the frame. Insulation component 2 works by activating fan 201 and electric heating rod 203. Fan 201 blows air into box 202, where it is heated by the electric heating rod 203. The hot air then passes through the fan 201... The connecting pipe 204 enters the air plate 205 and is then blown out through the air hole 206. When the hot air is blown out, it heats and insulates the air in the frame frame, thereby slowing down the cooling rate of the welded parts of the frame frame. The setting of the heat insulation component 2 achieves the insulation of the welding work area environment, thereby preventing cold air from directly contacting the frame frame, preventing the welded seams of the frame frame from cooling too quickly, preventing large residual stress, and effectively controlling welding deformation. The setting of the electric heating plate 10 achieves the heating and insulation of the bottom of the frame frame, which helps to reduce the deformation of the frame frame.

[0035] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A forklift frame welding deformation control device, comprising a cabinet (1), characterized in that: A side panel (9) is installed on the lower side of the cabinet (1), and a heat insulation component (2) is installed on the upper surface of the side panel (9). Two sets of symmetrically distributed support plates (11) are installed inside the upper part of the cabinet (1), and an electric heating plate (10) is installed on the support plate (11).

2. The forklift frame welding deformation control device according to claim 1, characterized in that: The cabinet (1) has a cabinet door (5) on its surface, a base frame (4) is installed at the bottom of the cabinet (1), and a controller (3) is installed on the upper part of the side of the cabinet (1) away from the side panel (9).

3. The forklift frame welding deformation control device according to claim 1, characterized in that: A mounting base (7) is installed on one end of the upper surface of the cabinet (1), and a sliding groove (8) is provided on the surface of the mounting base (7).

4. The forklift frame welding deformation control device according to claim 3, characterized in that: A motor (6) is mounted on the side of the mounting base (7). The motor (6) is connected to a two-way lead screw (14). The two-way lead screw (14) is rotatably connected to the mounting base (7). A slider (12) is threadedly connected to the two-way lead screw (14). A clamping plate (13) is connected to the side of the slider (12).

5. The forklift frame welding deformation control device according to claim 4, characterized in that: The lower surface of the clamp (13) is in contact with the upper surface of the cabinet (1), and the slider (12) is slidably adapted to the slide groove (8).

6. The forklift frame welding deformation control device according to claim 3, characterized in that: The insulation component (2) includes a fan (201), which is fixedly installed on the upper surface of the side plate (9). The fan (201) is connected to a box (202), which is fixedly installed in the middle position on the upper surface of the side plate (9).

7. The forklift frame welding deformation control device according to claim 6, characterized in that: Multiple sets of evenly distributed electric heating rods (203) are installed on the top of the box body (202). A connecting pipe (204) is connected through the middle of the upper part of the box body (202). The connecting pipe (204) is L-shaped, and the other end of the connecting pipe (204) is connected to a fan plate (205).

8. The forklift frame welding deformation control device according to claim 7, characterized in that: The lower part of the air plate (205) is fixedly installed in the middle position of the upper surface of the mounting base (7), and the air plate (205) has multiple sets of evenly distributed air holes (206) on the side facing the cabinet (1).