Wheel type harvester cab welding tool

Abstract

The utility model belongs to the technical field of wheel type harvester welding tools, and particularly relates to a wheel type harvester cab welding tool which comprises a base plate, and two frame bodies, a bottom plate positioning and clamping mechanism, a front plate positioning and clamping mechanism, a rear plate positioning and clamping mechanism and two side plate positioning and clamping mechanisms are arranged on the base plate. The two frame bodies are installed on the left side and the right side of the base plate in a sliding mode, the side plate positioning and clamping mechanisms are installed on the frame bodies, positioning assemblies corresponding to the frame bodies are arranged on the base plate, each positioning assembly comprises a positioning seat and a positioning lap piece, the positioning seats are installed on the base plate, and the positioning lap pieces are installed on the positioning seats. The positioning lapping piece is installed on the positioning seat in a hinged mode, and positioning blocks are arranged on the positioning seat and the positioning lapping piece. According to the wheel type harvester cab welding device, welding of various types of wheel type harvester cabs is achieved, meanwhile, positioning and taking and placing of parts are facilitated, and production efficiency and equipment adaptability are improved.

Description

Technical Field

[0001] The utility model relates to a welding tool for a cab of a wheeled harvester, belonging to the technical field of welding tools for wheeled harvesters. Background Art

[0002] The cab of the fourth-generation body of a wheeled harvester is an important component thereof. It is arranged on the driver's platform and is the position where the driver works. Most of the existing welding tools for the cab of a wheeled harvester are simple tools, which cannot ensure that adjacent components are butted in place during welding, making it difficult to guarantee the welding quality, and the operation is time-consuming and laborious. The quality of welding, in addition to affecting the appearance of the cab and the driver's riding experience, is more importantly related to the service life of the cab of the wheeled harvester. In addition, the existing welding tools for the cab of a wheeled harvester can only be adapted to specific models of wheeled harvesters and cannot be adjusted and adapted according to cabs of different sizes, resulting in poor adaptability of the tooling. Different welding tools need to be equipped for different models of wheeled harvesters, which is not convenient for workers to operate. Summary of the Utility Model

[0003] The utility model aims at the defects of the prior art and provides a welding tool for a cab of a wheeled harvester.

[0004] The technical solution for the utility model to solve the above technical problems is as follows:

[0005] A welding tool for a cab of a wheeled harvester, comprising a base plate. A frame body, a bottom plate positioning and clamping mechanism, a front plate positioning and clamping mechanism, a rear plate positioning and clamping mechanism and two side plate positioning and clamping mechanisms are arranged on the base plate. There are two frame bodies, and the two frame bodies are slidably installed on the left and right sides of the base plate. The side plate positioning and clamping mechanism is installed on the frame body. A positioning component corresponding to the frame body is arranged on the base plate. The positioning component includes a positioning seat and a positioning fastener. The positioning seat is installed on the base plate, the positioning fastener is hingedly installed on the positioning seat, and positioning blocks are arranged on both the positioning seat and the positioning fastener.

[0006] The beneficial effects of the utility model are as follows: By setting the bottom plate positioning and clamping mechanism, the front plate positioning and clamping mechanism, the rear plate positioning and clamping mechanism and the side plate positioning and clamping mechanism, the bottom plate, the front plate, the rear plate and the two side plates of the cab of the wheeled harvester are respectively positioned and clamped, ensuring the welding quality of the cab. Moreover, the side plate positioning and clamping mechanism is installed on the frame body, and the frame body is slidably installed on the base plate. Through the sliding installation method, the welding of cabs of various models of wheeled harvesters is realized, and at the same time, it is convenient for positioning and picking and placing parts, improving the production efficiency and equipment adaptability.

[0007] On the basis of the above technical solution, the utility model can also make the following improvements:

[0008] Furthermore, the frame is installed on a pallet, the pallet is slidably installed on the base plate, and the side plate positioning and clamping mechanism includes an upper tube positioning and clamping assembly, a lower tube clamping assembly, and a front tube clamping assembly provided on the frame.

[0009] Furthermore, the upper tube positioning and clamping assembly, the lower tube clamping assembly, and the front tube clamping assembly each include a side seat plate, a side clamping cylinder, and a side pressure plate. The side seat plate is fixedly installed on the frame, the side clamping cylinder is installed on the side seat plate, the side pressure plate is hingedly installed on the side seat plate, and the end of the piston rod of the side clamping cylinder is hinged to the side pressure plate.

[0010] Furthermore, the upper tube positioning and clamping assembly further includes an upper side positioning cylinder and an upper side positioning pin. The upper side positioning cylinder is installed on the side seat plate, and the end of the piston rod of the upper side positioning cylinder is connected to the upper side positioning pin.

[0011] Furthermore, the bottom plate positioning and clamping mechanism includes a first position positioning pin and a second position positioning pin. The first position positioning pin and the second position positioning pin each include a diamond pin and a column pin.

[0012] Furthermore, the bottom plate positioning and clamping mechanism further includes an arc tube clamping assembly. The arc tube clamping assembly includes an arc tube seat plate, an arc tube clamping cylinder, and an arc tube pressure plate. The arc tube seat plate is installed on the base plate, the arc tube clamping cylinder is installed on the arc tube seat plate, the arc tube pressure plate is hingedly installed on the arc tube seat plate, and the end of the piston rod of the arc tube clamping cylinder is hinged to the arc tube pressure plate.

[0013] Furthermore, a lower tube pressing assembly is also provided on the frame. The lower tube pressing assembly includes a base plate, a bottom pressing cylinder, and a bottom pressure plate. The base plate is installed on the frame, the bottom pressing cylinder is installed on the base plate, the bottom pressure plate is hingedly installed on the base plate, and the end of the piston rod of the bottom pressing cylinder is hinged to the bottom pressure plate.

[0014] Furthermore, the front plate positioning and clamping mechanism includes a front side tube clamping assembly and a front upper beam support clamping assembly. There are two front side tube clamping assemblies, and the two front side tube clamping assemblies are respectively provided on the frame. The front upper beam support clamping assembly includes a bracket, and a positioning support member and a front upper beam clamping mechanism are provided on the bracket. The positioning support member includes a positioning support seat and a positioning support bracket. The positioning support seat is installed on the bracket, and the positioning support bracket is hingedly installed on the positioning support seat.

[0015] Furthermore, the front side pipe clamping assembly includes a front side seat plate, a front side pressing cylinder, and a front side pressing plate. The front side seat plate is fixedly installed on the frame body. The front side pressing cylinder is installed on the front side seat plate. The front side pressing plate is hingedly installed on the front side seat plate. The end of the piston rod of the front side pressing cylinder is hinged to the front side pressing plate.

[0016] Furthermore, the rear plate positioning and clamping mechanism includes a rear seat plate, a rear clamping cylinder, and a rear rotating plate. The rear seat plate is fixedly installed on the frame body. The rear clamping cylinder is installed on the rear seat plate. The rear rotating plate is hingedly installed on the rear seat plate. The end of the piston rod of the rear clamping cylinder is hinged to the rear rotating plate. A rear positioning cylinder is provided on the rear rotating plate, and the end of the piston rod of the rear positioning cylinder is connected to a rear positioning pin. The rear plate positioning and clamping mechanism further includes a rear pressing assembly. The rear pressing assembly includes a rear mounting plate, a rear pressing cylinder, and a rear pressing plate. The rear mounting plate is installed on the frame body. The rear pressing cylinder is installed on the rear mounting plate. The rear pressing plate is hingedly installed on the rear mounting plate. The end of the piston rod of the rear pressing cylinder is hinged to the rear pressing plate. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of another angle of the present utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the side plate positioning and clamping mechanism;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the positioning assembly;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the upper pipe positioning and clamping assembly;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the arc pipe clamping assembly;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the front side pipe clamping assembly;

[0024] Figure 8 is a three-dimensional structural schematic diagram of the front upper beam support clamping assembly;

[0025] Figure 9 is a three-dimensional structural schematic diagram of the rear clamping cylinder and the rear rotating plate;

[0026] Figure 10 is a structural schematic diagram of the column pin of the first position positioning pin;

[0027] Figure 11 Schematic structural diagram of a diamond pin as the second-position positioning pin

[0028] Figure 12 Schematic structural diagram of a front upper beam clamping mechanism

[0029] The reference numerals are recorded as follows: 1, substrate; 2, first-position positioning pin; 3, second-position positioning pin; 4, positioning column; 6, positioning seat; 7, positioning bracket; 8, positioning block; 9, support plate; 10, slide rail; 11, limit block; 12, frame; 13, upper pipe positioning and clamping assembly; 131, upper side seat plate; 132, upper side clamping cylinder; 133, upper side pressing plate; 134, upper cushion block; 135, lower cushion block; 136, side cushion block; 137, upper side positioning cylinder; 138, upper side positioning pin; 139, pin rod; 14, lower pipe clamping assembly; 15, front pipe clamping assembly; 16, welding jacking cylinder; 17, arc pipe clamping assembly; 171, arc pipe seat plate; 172, arc pipe clamping cylinder; 173, arc pipe pressing plate; 18, lower pipe pressing assembly; 19, front side pipe clamping assembly; 191, front side seat plate; 192, front side pressing cylinder; 193, front side pressing plate; 20, front upper beam support and clamping assembly; 201, bracket; 202, positioning support member; 203, positioning support seat; 2031, support positioning block 2031; 204, positioning support bracket; 205, front upper beam clamping mechanism; 2051, front upper seat plate; 2052, front upper clamping cylinder; 2053, front upper pressing plate; 2054, front lower cushion plate; 2055, front upper cushion plate; 211, rear seat plate; 212, rear clamping cylinder; 213, rear rotating plate; 214, rear positioning cylinder; 215, rear positioning pin; 22, rear pressing assembly; 221, rear pressing cylinder; 222, rear pressing plate; 223, inner cushion block Detailed implementation manners

[0030] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model

[0031] See Figure 1-11 , a wheeled harvester cab welding tooling, comprising a substrate 1, on which a frame 12, a bottom plate positioning and clamping mechanism, a front plate positioning and clamping mechanism, a rear plate positioning and clamping mechanism, and two side plate positioning and clamping mechanisms are provided. There are two frame 12, and the two frame 12 are slidably installed on the left and right sides of the substrate 1, and the side plate positioning and clamping mechanism is installed on the frame 12

[0032] A positioning component is provided on the substrate 1 corresponding to the frame body 12. The positioning component includes a positioning seat 6 and a positioning fastener 7. The positioning seat 6 is installed on the substrate 1, and the positioning fastener 7 is hingedly installed on the positioning seat 6. Specifically, the positioning seat 6 includes a positioning seat plate and a vertical plate fixedly installed on the positioning seat plate. The positioning fastener 7 is hingedly installed on the vertical plate. The positioning fastener 7 includes hinge plates provided on both sides of the vertical plate and a stop arm fixedly installed at the end of the hinge plate. Positioning blocks 8 are provided at the end of the vertical plate of the positioning seat 6 and at the end of the stop arm of the positioning fastener 7. According to the size of the wheeled harvester, for a wide-body vehicle (such as a wheat harvester), the positioning fastener 7 is flipped to the front of the positioning seat 6, and the frame body 12 is positioned by the positioning block 8 in front of the positioning fastener 7 (see Figure 4 ). For a narrow-body vehicle (such as a spraying machine), the positioning fastener 7 is flipped to the back of the positioning seat 6, and the positioning block 8 on the positioning seat 6 is used to position the side plate positioning and clamping mechanism, so as to realize the assistance for the welding of cabs of various models and improve the adaptability of the tooling of the present utility model.

[0033] The frame body 12 is installed on a support plate 9, and the support plate 9 is slidably installed on the substrate 1. Specifically, the support plate 9 is installed on the substrate 1 through a slide rail 10 and a slider. A limit block 11 is provided at the end of the slide rail 10 to limit the maximum stroke of the frame body 12 and prevent the frame body 12 from slipping off the slide rail 10. The sliding of the support plate 9 is driven by a sliding cylinder (not shown in the figure). The side plate positioning and clamping mechanism includes an upper tube positioning and clamping assembly 13, a lower tube clamping assembly 14, and a front tube clamping assembly 15 provided on the frame body 12. The upper tube positioning and clamping assembly 13, the lower tube clamping assembly 14, and the front tube clamping assembly 15 respectively position and clamp the upper tube, the lower tube, and the front tube of the left and right side plates of the cab. The upper tube positioning and clamping assembly 13, the lower tube clamping assembly 14, and the front tube clamping assembly 15 each include a side seat plate, a side clamping cylinder, and a side pressing plate. The side seat plate is fixedly installed on the frame body 12, the side clamping cylinder is installed on the side seat plate, and the side pressing plate is hingedly installed on the side seat plate. The end of the piston rod of the side clamping cylinder is hinged to the side pressing plate.

[0034] Specifically, taking the upper tube positioning and clamping assembly 13 as an example, see Figure 5, the upper tube positioning and clamping assembly 13 of this embodiment includes an upper side seat plate 131, an upper side clamping cylinder 132 and an upper side pressing plate 133. The upper side seat plate 131 is fixedly installed on the frame body 12. The cylinder body of the upper side clamping cylinder 132 is hingedly installed on the upper side seat plate 131. The upper side pressing plate 133 is hingedly installed on the upper side seat plate 131. The end of the piston rod of the upper side clamping cylinder 132 is hinged to the upper side pressing plate 133. When the piston rod of the upper side clamping cylinder 132 extends, the upper side pressing plate 133 rotates around its hinge point with the upper side seat plate 131 driven by the piston rod and presses tightly on the upper surface of the upper tube on the left side plate or the right side plate. In order to better clamp the upper tube, a lower cushion block 135 is provided on the upper side seat plate 131 corresponding to the upper side pressing plate 133. A side cushion block 136 is also provided on the upper side seat plate 131. An upper cushion block 134 is provided at the bottom of the upper side seat plate 131. The upper cushion block 134, the lower cushion block 135 and the side cushion block 136 jointly clamp the upper surface, the lower surface and the side surface of the upper tube on the left side plate or the right side plate. In order to ensure the stability of clamping the upper tube on the left side plate or the right side plate, two groups of the upper tube positioning and clamping assemblies 13 are symmetrically provided on the frame body 12. The components included in the lower tube clamping assembly 14 and the front tube clamping assembly 15 of this embodiment are similar to those of the upper tube positioning and clamping assembly 13. The specific structures and quantities of the components are changed according to the specific shapes of the lower tubes and the front tubes on the left side plate and the right side plate, so as to adapt to the specific structures of the lower tubes and the front tubes, thereby realizing the clamping operations on the upper tubes, the lower tubes and the front tubes of the left side plate and the right side plate, which will not be elaborated here.

[0035] In order to ensure the stability when welding the left side plate and the right side plate to the bottom plate, a welding jacking cylinder 16 is provided on the frame body 12. During welding, the lower tubes of the left side plate and the right side plate are jacked tightly on the bottom plate to achieve stable welding.

[0036] The upper tube positioning and clamping assembly 13 further includes an upper side positioning cylinder 137 and an upper side positioning pin 138. The upper side positioning cylinder 137 is installed on the upper side seat plate 131. The end of the piston rod of the upper side positioning cylinder 137 is connected to the upper side positioning pin 138 through a pin rod 139. In order to better position the upper tube on the left side plate or the right side plate, two groups of the upper side positioning cylinder 137 and the upper side positioning pin 138 are symmetrically provided on the frame body 12. The upper side positioning cylinder 137 drives the upper side positioning pin 138 to insert into two through holes of the upper tube on the left side plate or the right side plate, so as to achieve accurate positioning of the upper tube, thereby positioning the left side plate and the right side plate, and enabling the upper tube positioning and clamping assembly 13, the lower tube clamping assembly 14 and the front tube clamping assembly 15 to better clamp the upper tube, the lower tube and the front tube.

[0037] The bottom plate positioning and clamping mechanism includes a first position positioning pin 2 and a second position positioning pin 3. Both the first position positioning pin 2 and the second position positioning pin 3 respectively include a diamond pin and a cylindrical pin. The bottom plates of different machine sizes are positioned by the first position positioning pin 2 and the second position positioning pin 3. If it is a wide-size cab of a vehicle body, the cylindrical pin and the diamond pin of the first position positioning pin 2 are used to position two holes of the bottom plate. If it is a narrow-size cab of a vehicle body, the cylindrical pin and the diamond pin of the second position positioning pin 3 are used to position two holes of the welded joint of the bottom plate, improving the adaptability of the welding tool of the present utility model.

[0038] The bottom plate positioning and clamping mechanism further includes an arc tube clamping assembly 17. The arc tube clamping assembly 17 includes an arc tube seat plate 171, an arc tube clamping cylinder 172, and an arc tube pressing plate 173. The arc tube seat plate 171 is installed on the base plate 1. The arc tube clamping cylinder 172 is installed on the arc tube seat plate 171. The arc tube pressing plate 173 is hingedly installed on the arc tube seat plate 171. The end of the piston rod of the arc tube clamping cylinder 172 is hinged to the arc tube pressing plate 173. After the bottom plate is positioned by the cylindrical pin and the diamond pin, the arc tube clamping assembly 17 is used to clamp the arc tube of the bottom plate. In order to adapt to the radian of the arc tube, at least two arc tube clamping assemblies 17 are provided. At least two positioning columns 4 are further provided on the base plate 1 to provide support for the lower plane of the bottom plate.

[0039] A lower tube pressing assembly 18 is further provided on the frame body 12. The lower tube pressing assembly 18 includes a base plate, a bottom pressing cylinder, and a bottom pressing plate. The base plate is installed on the frame body 12. The bottom pressing cylinder is hingedly installed on the base plate. The bottom pressing plate is hingedly installed on the base plate. The end of the piston rod of the bottom pressing cylinder is hinged to the bottom pressing plate. During use, the piston rod of the bottom pressing cylinder extends to drive the bottom pressing plate to press on the upper surface of the lower tube of the left side plate or the right side plate, so that the lower tubes of the left side plate and the right side plate are attached to the bottom plate, improving the welding quality.

[0040] The front plate positioning and clamping mechanism includes a front side tube clamping assembly 19 and a front upper beam support clamping assembly 20. Two front side tube clamping assemblies 19 are provided. The two front side tube clamping assemblies 19 are respectively arranged on the frame body 12. The front upper beam support clamping assembly 20 includes a bracket 201. A positioning support member 202 and a front upper beam clamping mechanism 205 are provided on the bracket 201. The bracket 201 is arranged at the middle part of the front side of the upper surface of the base plate 1. Two positioning support members 202 are provided on the bracket 201. The positioning support member 202 includes a positioning support seat 203 and a positioning support connecting piece 204. The positioning support seat 203 is installed on the bracket 201. The positioning support connecting piece 204 is hingedly installed on the positioning support seat 203 (see Figure 8)。The positioning and support during the welding of the pipes on the front panel of the cab with different machine sizes can be achieved through the positioning support member 202. For the cab with a wide body size, the positioning support bracket 204 is flipped to the front of the positioning support seat 203 (see Figure 8 ). The front panel is positioned through the positioning support bracket 204. For the cab with a narrow body size, the positioning support bracket 204 is flipped to the rear of the positioning support seat 203, and the front arc surface of the front cross beam of the front panel is positioned through the support positioning block 2031 on the positioning support seat 203. See Figure 12 . The front upper beam clamping mechanism 205 includes a front upper seat plate 2051, a front upper clamping cylinder 2052, and a front upper pressing plate 2053. The front upper seat plate 2051 is fixedly installed on the bracket 201. The cylinder block of the front upper clamping cylinder 2052 is hingedly installed on the front upper seat plate 2051. The front upper pressing plate 2053 is hingedly installed on the front upper seat plate 2051. The end of the piston rod of the front upper clamping cylinder 2052 is hingedly installed on the front upper pressing plate 2053. A front lower cushion plate 2054 is provided on the front upper seat plate 2051 corresponding to the front upper pressing plate 2053. A front upper cushion plate 2055 is provided at the bottom of the front upper pressing plate 2053. By the elongation of the piston rod of the front upper clamping cylinder 2052, the front upper pressing plate 2053 is driven to rotate around its hinge point with the front upper seat plate 2051, so that the front upper cushion plate 2055 of the front upper pressing plate 2053 cooperates with the front lower cushion plate 2054 to clamp the upper beam of the front panel.

[0041] See Figure 7 . The front side pipe clamping assembly 19 includes a front side seat plate 191, a front side pressing cylinder 192, and a front side pressing plate 193. The front side seat plate 191 is fixedly installed on the frame body 12. The front side pressing cylinder 192 is hingedly installed on the front side seat plate 191. The front side pressing plate 193 is hingedly installed on the front side seat plate 191. The end of the piston rod of the front side pressing cylinder 192 is hinged to the front side pressing plate 193. By the elongation of the piston rod of the front side pressing cylinder 192, the front side pressing plate 193 is driven to rotate. A front side lower cushion plate is provided on the front side seat plate 191 corresponding to the front side pressing plate 193. A front side upper cushion plate is provided at the bottom of the front side pressing plate 193. By the elongation of the piston rod of the front side pressing cylinder 192, the front side pressing plate 193 is driven to rotate around its hinge point with the front side seat plate 191, so that the front side upper cushion plate of the front side pressing plate 193 cooperates with the front side lower cushion plate to clamp both ends of the upper beam of the front panel.

[0042] The rear plate positioning and clamping mechanism includes a rear seat plate 211, a rear clamping cylinder 212 and a rear rotating plate 213. The rear seat plate 211 is fixedly installed on the frame body 12. The rear clamping cylinder 212 is hingedly installed on the rear seat plate 211. The rear rotating plate 213 is hingedly installed on the rear seat plate 211. The end of the piston rod of the rear clamping cylinder 212 is hinged to the rear rotating plate 213. A rear positioning cylinder 214 is provided on the rear rotating plate 213. The end of the piston rod of the rear positioning cylinder 214 is connected to a rear positioning pin 215. When the piston rod of the rear clamping cylinder 212 extends, it drives the rear rotating plate 213 to flip in place. When the piston rod of the rear positioning cylinder 214 extends, it drives the rear positioning pin 215 to extend and insert into the through hole on the rear plate to achieve the positioning of the rear plate.

[0043] The rear plate positioning and clamping mechanism further includes a rear pressing assembly 22. The rear pressing assembly 22 includes a rear mounting plate, a rear pressing cylinder 221 and a rear pressing plate 222. The rear mounting plate is installed on the frame body 12. The rear pressing cylinder 221 is installed on the rear mounting plate. The rear pressing plate 222 is hingedly installed on the rear mounting plate. The end of the piston rod of the rear pressing cylinder 221 is hinged to the rear pressing plate 222. After the rear positioning cylinder 214 drives the rear positioning pin 215 to position the rear plate, the piston rod of the rear pressing cylinder 221 extends to drive the rear pressing plate 222 to press the rear plate, so that the rear plate fits with the left and right side plates and the bottom plate, thereby improving the welding quality. In order to improve the pressing effect on the rear plate, inner cushion blocks 223 are respectively provided at both ends of the rear pressing plate 222.

[0044] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding tooling for the cab of a wheeled harvester, including a base plate, characterized in that, A frame body, a bottom plate positioning and clamping mechanism, a front plate positioning and clamping mechanism, a rear plate positioning and clamping mechanism, and two side plate positioning and clamping mechanisms are provided on the substrate. There are two frame bodies, and the two frame bodies are slidably installed on the left and right sides of the substrate. The side plate positioning and clamping mechanism is installed on the frame body. A positioning component is provided on the substrate corresponding to the frame body. The positioning component includes a positioning seat and a positioning latch. The positioning seat is installed on the substrate, and the positioning latch is hingedly installed on the positioning seat. Positioning blocks are provided on both the positioning seat and the positioning latch.

2. The wheeled harvester cab welding tooling according to claim 1, characterized in that, The frame body is installed on a support plate, and the support plate is slidably installed on the substrate. The side plate positioning and clamping mechanism includes an upper pipe positioning and clamping component, a lower pipe clamping component, and a front pipe clamping component provided on the frame body.

3. The wheeled harvester cab welding tooling according to claim 2, characterized in that, The upper pipe positioning and clamping component, the lower pipe clamping component, and the front pipe clamping component each include a side seat plate, a side clamping cylinder, and a side pressing plate. The side seat plate is fixedly installed on the frame body, the side clamping cylinder is installed on the side seat plate, the side pressing plate is hingedly installed on the side seat plate, and the end of the piston rod of the side clamping cylinder is hingedly connected to the side pressing plate.

4. The wheeled harvester cab welding tooling according to claim 3, characterized in that, The upper pipe positioning and clamping component further includes an upper side positioning cylinder and an upper side positioning pin. The upper side positioning cylinder is installed on the side seat plate, and the end of the piston rod of the upper side positioning cylinder is connected to the upper side positioning pin.

5. The wheeled harvester cab welding tooling according to claim 4, characterized in that, The bottom plate positioning and clamping mechanism includes a first position positioning pin and a second position positioning pin. The first position positioning pin and the second position positioning pin each include a diamond pin and a column pin.

6. The wheeled harvester cab welding tooling according to claim 5, characterized in that, The bottom plate positioning and clamping mechanism further includes an arc pipe clamping component. The arc pipe clamping component includes an arc pipe seat plate, an arc pipe clamping cylinder, and an arc pipe pressing plate. The arc pipe seat plate is installed on the substrate, the arc pipe clamping cylinder is installed on the arc pipe seat plate, the arc pipe pressing plate is hingedly installed on the arc pipe seat plate, and the end of the piston rod of the arc pipe clamping cylinder is hingedly connected to the arc pipe pressing plate.

7. The welding tooling for the cab of the wheeled harvester according to claim 6, characterized in that, A lower pipe pressing component is further provided on the frame body. The lower pipe pressing component includes a base plate, a bottom pressing cylinder, and a bottom pressing plate. The base plate is installed on the frame body, the bottom pressing cylinder is installed on the base plate, the bottom pressing plate is hingedly installed on the base plate, and the end of the piston rod of the bottom pressing cylinder is hingedly connected to the bottom pressing plate.

8. The wheeled harvester cab welding tooling according to claim 7, characterized in that The front plate positioning and clamping mechanism includes a front side pipe clamping component and a front upper beam support clamping component. There are two front side pipe clamping components, and the two front side pipe clamping components are respectively provided on the frame body. The front upper beam support clamping component includes a bracket. A positioning support member and a front upper beam clamping mechanism are provided on the bracket. The positioning support member includes a positioning support seat and a positioning support latch. The positioning support seat is installed on the bracket, and the positioning support latch is hingedly installed on the positioning support seat.

9. The wheeled harvester cab welding tooling according to claim 8, characterized in that, The front side pipe clamping component includes a front side seat plate, a front side pressing cylinder, and a front side pressing plate. The front side seat plate is fixedly installed on the frame body, the front side pressing cylinder is installed on the front side seat plate, the front side pressing plate is hingedly installed on the front side seat plate, and the end of the piston rod of the front side pressing cylinder is hingedly connected to the front side pressing plate.

10. The wheeled harvester cab welding tooling according to claim 9, characterized in that, The rear plate positioning and clamping mechanism includes a rear seat plate, a rear clamping cylinder, and a rear rotating plate. The rear seat plate is fixedly installed on the frame body. The rear clamping cylinder is installed on the rear seat plate. The rear rotating plate is hingedly installed on the rear seat plate. The end of the piston rod of the rear clamping cylinder is hinged to the rear rotating plate. A rear positioning cylinder is provided on the rear rotating plate, and the end of the piston rod of the rear positioning cylinder is connected to a rear positioning pin. The rear plate positioning and clamping mechanism further includes a rear pressing assembly. The rear pressing assembly includes a rear mounting plate, a rear pressing cylinder, and a rear pressing plate. The rear mounting plate is installed on the frame body. The rear pressing cylinder is installed on the rear mounting plate. The rear pressing plate is hingedly installed on the rear mounting plate. The end of the piston rod of the rear pressing cylinder is hinged to the rear pressing plate.

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