Cab side door assembling and welding workbench
By designing a cab side door assembly and welding workbench and using support plates and sliding longitudinal beams to adjust the side door size, the problem of low assembly precision of cab side doors for large agricultural machinery was solved, achieving efficient assembly and welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG HUIJIN MASCH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-21
AI Technical Summary
The low assembly precision of the side door of the cab of large agricultural machinery leads to large installation errors, affecting the overall assembly effect.
A cab side door assembly and welding workbench was designed, including a workbench frame consisting of four legs and a square frame, equipped with a support plate, sliding longitudinal beam and positioning seat for supporting and adjusting the side door frame to ensure assembly accuracy and adapt to different sizes.
This improved the assembly efficiency and installation accuracy of the side doors, ensured the overall assembly quality of the cab, and saved production costs.
Smart Images

Figure CN224143893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery and equipment technology, and in particular to a cab side door assembly and welding workbench. Background Technology
[0002] The cab of large agricultural machinery is composed of multiple panels and side doors. Before assembling the cab, each part needs to be assembled separately before being joined together. If the installation error of the side doors or panels is large, it will affect the overall assembly effect. Because the shape and structure of the side doors of the cab are more complex than those of the panels, the assembly precision of the side doors is lower, which may lead to problems such as the side doors not being able to be installed or not closing properly. Therefore, in order to improve the overall assembly effect of the cab, it is necessary to ensure the installation precision of the side doors. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a cab side door assembly and welding workbench to improve the assembly efficiency and installation accuracy of the cab side door.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a cab side door assembly and welding workbench, including a workbench frame composed of four support legs and a square frame, wherein a support plate for supporting the side door frame is installed on the square frame, and the support plate is provided with a groove for accommodating the side door frame; one of the longitudinal beams of the square frame is a reference longitudinal beam, and a hinge support seat is installed on the side of the reference longitudinal beam.
[0005] The square frame is formed by welding two horizontal beams and two vertical beams end to end. The inner side of the horizontal beam is provided with a sliding plate. The two ends of the sliding plate are fixedly connected to the two vertical beams on both sides. A sliding groove is formed between the sliding plate and the horizontal beam. A sliding vertical beam is slidably installed between the two sliding grooves. The two ends of the sliding vertical beam are equipped with end plates that move along the sliding groove. The distance between the sliding vertical beam and the reference vertical beam is adjusted by sliding the end plates.
[0006] Several support plates for supporting the side door frame are also installed on the sliding longitudinal beam. A positioning seat is detachably installed at the end of the sliding longitudinal beam. A positioning seat is also installed at the corresponding position on the reference longitudinal beam. The positioning seat is provided with a longitudinal positioning plate parallel to the crossbeam and a transverse positioning plate parallel to the longitudinal beam.
[0007] As a preferred technical solution, the bottom wall of the support plate groove is provided with a horizontal calibration surface that fits against the bottom of the side door frame, and the two side walls of the groove are provided with vertical calibration surfaces that respectively contact the inner edge and the outer edge of the side door frame.
[0008] As a preferred technical solution, the hinge support includes a horizontally arranged support arm and a longitudinally arranged support. One end of the support arm is fixedly installed on the side of the reference longitudinal beam, and the other end is installed on the side of the support. The top of the support is provided with a hinge support surface.
[0009] As a further improvement, the bottom end of the support is provided with a horizontally arranged insertion hole, and the support arm is inserted into the insertion hole.
[0010] As a preferred technical solution, the positioning seat includes a clamping plate adapted to the shape of the longitudinal beam. The extension direction of the clamping plate is parallel to the extension direction of the longitudinal beam and is clamped onto the reference longitudinal beam or sliding longitudinal beam. Two parallel upright plates are provided above the clamping plate. A longitudinal positioning plate and a transverse positioning plate are provided on the top of the upright plates, and the extension directions of the longitudinal positioning plate and the transverse positioning plate are parallel to the extension direction of the transverse beam. A positioning base plate is connected between the longitudinal positioning plate and the transverse positioning plate. The longitudinal positioning plate is located inside the transverse positioning plate, and the longitudinal positioning plate is also provided with a positioning groove to accommodate the side door frame.
[0011] As a further improvement, the longitudinal positioning plate, the positioning base plate, and the transverse positioning plate are formed by bending a single piece of sheet material.
[0012] As another improvement, the card is made of a flexible and deformable shape memory metal material.
[0013] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model supports the side door frame with a support plate, which makes it easy to assemble the side door on the workbench, improving the assembly efficiency of the side. The support plate can correct the horizontality and verticality of the side door, improving the installation accuracy and ensuring the overall assembly accuracy of the cab.
[0014] This invention adjusts the length and width of the side door using a sliding longitudinal beam and a positioning seat, making it suitable for assembling side doors of different sizes. It eliminates the need to create a special workbench for side doors of different sizes, thus saving production and processing costs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;
[0017] Figure 2 yes Figure 1 Top view;
[0018] Figure 3 This is a schematic diagram of the sliding longitudinal beam in an embodiment of this utility model;
[0019] Figure 4 This is a schematic diagram of the positioning seat in an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of one usage state of an embodiment of the present utility model;
[0021] Figure 6 This is a schematic diagram of another usage state of this utility model embodiment;
[0022] In the diagram: 11-Outrigger; 12-Reinforcing beam; 13-Crossbeam; 14-Longitudinal beam; 140-Base longitudinal beam; 15-Intermediate crossbeam; 16-Slide plate; 17-Slide groove; 2-Support plate; 201-Groove; 3-Hinge support seat; 31-Outrigger; 32-Support; 321-Hinge support surface; 322-Insertion hole; 4-Sliding longitudinal beam; 41-End plate; 5-Positioning seat; 51-Clamping plate; 52-Upright plate; 531-Longitudinal positioning plate; 532-Transverse positioning plate; 533-Positioning base plate; 54-Positioning groove; 9-Side door frame. Detailed Implementation
[0023] like Figures 1 to 6 As shown, a cab side door assembly and welding workbench includes a workbench frame, which is composed of four support legs 11 and a square frame. A reinforcing beam 12 is installed between the four support legs 11. The square frame is formed by welding two cross beams 13 and two longitudinal beams 14 end to end. A middle cross beam 15 is installed in the middle of the square frame to improve structural strength and structural stability.
[0024] A support plate 2 for supporting the side door frame is installed on the square frame, and the support plate 2 has a groove 201 for accommodating the side door frame 9. For example... Figure 5 As shown, during the assembly of the side door, the side door frame 9 is supported above the support plate 2.
[0025] To facilitate assembly, one of the longitudinal beams of the square frame is designated as the reference longitudinal beam 140, and a hinge support 3 is installed on the side of the reference longitudinal beam 140.
[0026] If the side door frame 9 is made of U-shaped steel or round steel pipe, the shape of the corresponding support plate groove 201 can be set as U-shaped or semi-circular, and the shape of the support plate groove 201 is adapted to the cross-sectional shape of the side door frame.
[0027] To ensure the assembly accuracy of the side door, the bottom wall of the support plate groove 201 is provided with a horizontal calibration surface that fits against the bottom of the side door frame 9. The two side walls of the groove 201 are provided with vertical calibration surfaces that respectively contact the inner and outer edges of the side door frame 9. Preferably, the bottom wall of the groove 201 is ground and corrected to make it parallel to the horizontal plane to ensure the horizontality of the side door assembly; the surfaces of the two side walls of the groove 201 are ground and corrected to make them perpendicular to the horizontal plane to ensure the verticality of the side door assembly.
[0028] The hinge support 3 includes a horizontally arranged support arm 31 and a longitudinally arranged support 32. One end of the support arm 31 is fixedly installed on the side of the reference longitudinal beam 140, and the other end is installed on the side of the support 32. The top of the support 32 is provided with a hinge support surface 321. During welding, the hinge is placed on the hinge support surface 321.
[0029] Due to the differences in the dimensions of different side doors, the bottom end of the support 32 is provided with a horizontally arranged insertion hole 322 (see...). Figure 1 (Two dashed lines in the middle) The support arm 31 is inserted into the socket 322. The distance between the support 32 and the reference longitudinal beam 140 is adjusted through the socket 322 to facilitate assembly and welding.
[0030] like Figure 6 As shown, in order to accommodate side doors of different sizes, a sliding plate 16 is provided on the inner side of the crossbeam 13. The two ends of the sliding plate 16 are fixedly connected to the longitudinal beams 14 on both sides respectively. A sliding groove 17 is formed between the sliding plate 16 and the crossbeam 13. A sliding longitudinal beam 4 is slidably installed between the two sliding grooves 17. End plates 41 that move along the sliding groove 17 are installed at both ends of the sliding longitudinal beam 4. The sliding longitudinal beam 4 adjusts the distance with the reference longitudinal beam 140 by sliding the end plates 41, so that the distance is adapted to the width of the side door.
[0031] Several support plates 2 for supporting the side door frame are also installed on the sliding longitudinal beam 4. In order to determine the length and width of the side door, a positioning seat 5 is detachably installed at the end of the sliding longitudinal beam 4. A positioning seat 5 is also installed at the corresponding position on the reference longitudinal beam 140. The position of the positioning seat 5 on the sliding longitudinal beam 4 is determined by the length of the side door.
[0032] The positioning seat 5 is provided with a longitudinal positioning plate 531 parallel to the crossbeam 13 and a transverse positioning plate 532 parallel to the longitudinal beam 14 to determine the length and width of the side door.
[0033] Specifically, the positioning seat 5 also includes a clamping plate 51 that is adapted to the shape of the longitudinal beam 14. The extension direction of the clamping plate 51 is parallel to the extension direction of the longitudinal beam 14 and is clamped onto the reference longitudinal beam 140 or the sliding longitudinal beam 4. In order to facilitate installation and disassembly to realize the position movement of the positioning seat 5, the clamping plate 51 is made of elastic and deformable memory metal material. In use, the clamping plate 51 is clamped onto the sliding longitudinal beam 4 and the reference longitudinal beam 140. The two sides of the clamping plate 51 are bent outward so that it can be removed when not needed.
[0034] To accommodate the height of the support plate 2, two parallel upright plates 52 are provided above the card plate 51. The upright plates 52 are used to support the longitudinal positioning plate 531 and the transverse positioning plate 532. The longitudinal positioning plate 531 and the transverse positioning plate 532 are located on the top of the upright plates 52, and the extension direction of the longitudinal positioning plate 531 and the transverse positioning plate 532 is parallel to the extension direction of the crossbeam 13. A positioning base plate 533 is connected between the longitudinal positioning plate 531 and the transverse positioning plate 532. The longitudinal positioning plate 531 is located inside the transverse positioning plate 532. The longitudinal positioning plate 531 is also provided with a positioning groove 54 for accommodating the side door frame. Preferably, the longitudinal positioning plate 531, the positioning base plate 533 and the transverse positioning plate 532 are formed by bending a piece of sheet metal.
[0035] During installation, first adjust the sliding longitudinal beam 4 to a suitable position, and then attach the positioning seat 5 to the reference longitudinal beam 140 and the sliding longitudinal beam 4. The horizontal frame of the side door is located between the longitudinal positioning plate 531 and the horizontal positioning plate 532, and the longitudinal frame of the side door is located in the positioning groove 54 on the longitudinal positioning plate 531. Adjust the position of the hinge support seat 3, place the hinge on the hinge support seat 3, and then assemble and weld the side door components into a complete side door.
[0036] If the side door size does not need to be adjusted, simply remove the sliding longitudinal beam 4 and the positioning seat 5.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cab side door assembly and welding workstation characterized by: The workbench is composed of four legs and a square frame. The square frame is equipped with a support plate for supporting the side door frame, and the support plate has a groove for accommodating the side door frame. One of the longitudinal beams of the square frame is a reference longitudinal beam, and a hinge support seat is installed on the side of the reference longitudinal beam. The square frame is formed by welding two horizontal beams and two vertical beams end to end. The inner side of the horizontal beam is provided with a sliding plate. The two ends of the sliding plate are fixedly connected to the two vertical beams on both sides. A sliding groove is formed between the sliding plate and the horizontal beam. A sliding vertical beam is slidably installed between the two sliding grooves. The two ends of the sliding vertical beam are equipped with end plates that move along the sliding groove. The distance between the sliding vertical beam and the reference vertical beam is adjusted by sliding the end plates. Several support plates for supporting the side door frame are also installed on the sliding longitudinal beam. A positioning seat is detachably installed at the end of the sliding longitudinal beam. A positioning seat is also installed at the corresponding position on the reference longitudinal beam. The positioning seat is provided with a longitudinal positioning plate parallel to the crossbeam and a transverse positioning plate parallel to the longitudinal beam.
2. A cab side door assembly and welding station as claimed in claim 1 wherein: The bottom wall of the support plate groove is provided with a horizontal calibration surface that fits against the bottom of the side door frame, and the two side walls of the groove are provided with vertical calibration surfaces that respectively contact the inner edge and the outer edge of the side door frame.
3. A cab side door assembly and welding station as claimed in claim 1 wherein: The hinge support includes a horizontally arranged support arm and a longitudinally arranged support. One end of the support arm is fixedly installed on the side of the reference longitudinal beam, and the other end is installed on the side of the support. The top of the support is provided with a hinge support surface.
4. A cab side door assembly and welding station as claimed in claim 3 wherein: The bottom end of the support is provided with a horizontally arranged insertion hole, and the support arm is inserted into the insertion hole.
5. A cab side door assembly and welding station as claimed in claim 1 wherein: The positioning seat includes a clamping plate adapted to the shape of the longitudinal beam. The extension direction of the clamping plate is parallel to the extension direction of the longitudinal beam and is clamped onto the reference longitudinal beam or sliding longitudinal beam. Two parallel upright plates are provided above the clamping plate. A longitudinal positioning plate and a transverse positioning plate are provided on the top of the upright plates, and the extension directions of the longitudinal positioning plate and the transverse positioning plate are parallel to the extension direction of the transverse beam. A positioning base plate is connected between the longitudinal positioning plate and the transverse positioning plate. The longitudinal positioning plate is located inside the transverse positioning plate. The longitudinal positioning plate is also provided with a positioning groove to accommodate the side door frame.
6. A cab side door assembly and welding station as claimed in claim 5 wherein: The longitudinal positioning plate, the positioning base plate, and the transverse positioning plate are formed by bending a single sheet of material.
7. A cab side door assembly and welding station as claimed in claim 5 wherein: The card is made of a shape-memory metal material that is elastic and deformable.