Compressing tool for wheat machine roller spoke disc

Abstract

The utility model relates to a wheat machine roller amplitude disc pressing tool, which comprises a supporting seat, a supporting frame, a seat disc, a pressing pin device, an air cylinder and an amplitude disc positioning device, the supporting frame and the amplitude disc positioning device are arranged on the supporting seat, the air cylinder is arranged on the supporting seat, the seat disc is arranged at the output end of the air cylinder, and the pressing pin device is arranged at the output end of the air cylinder. The pin pressing device is installed on the base disc, the pin pressing device is located over the amplitude disc positioning device, and the pin pressing device and the amplitude disc positioning device are matched to be used for clamping an amplitude disc to be welded and a nut to be welded. A to-be-welded amplitude disc is supported through a positioning disc and a supporting column of the amplitude disc positioning device, a to-be-welded nut is positioned through a plurality of positioning pins, the to-be-welded nut and the to-be-welded amplitude disc are pressed through a pressing pin of the pressing pin device, the accuracy of the relative position of the to-be-welded nut and the to-be-welded amplitude disc is guaranteed, the welding quality is guaranteed, operation is easy, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, specifically to a clamping tooling for a wheat harvester drum. Background Technology

[0002] In wheat harvesters, the axial flow drum is located inside the threshing chamber. Primarily used for threshing, it is a crucial component of the threshing system. The flange is a part of the axial flow drum. Currently, the flange nut welding process typically involves manually pressing the nut down with a steel rod. This method is prone to misalignment, making it difficult to guarantee weld quality, and is time-consuming and labor-intensive. Utility Model Content

[0003] This utility model addresses the existing technical problems by providing a clamping device for the drum disc of a wheat harvester.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A clamping fixture for a wheat machine drum flange includes a support base, a support frame, a base plate, a pressing pin device, a cylinder, and a flange positioning device. The support frame and the flange positioning device are installed on the support base. The cylinder is installed on the support base. The base plate is installed on the output end of the cylinder. The pressing pin device is installed on the base plate. The pressing pin device is located directly above the flange positioning device. The pressing pin device cooperates with the flange positioning device to clamp the flange to be welded and the nut to be welded.

[0005] Based on the above technical solution, the present invention can be further improved as follows:

[0006] Preferably, the web plate positioning device includes a positioning plate, positioning pins, a base plate, and a cylindrical positioning surface. The positioning plate is mounted on the base plate, the cylindrical positioning surface is mounted on the positioning plate, and multiple positioning pins are provided. The multiple positioning pins are arranged circumferentially along the cylindrical positioning surface. The positioning plate is used to support the web plate to be welded. The cylindrical positioning surface corresponds to the positioning hole of the web plate to be welded, and the positioning pins correspond to the nut to be welded.

[0007] Preferably, the pressing pin device includes a connecting sleeve, a pressing pin, and a spring. The pressing pin passes through the connecting sleeve and is connected to the base plate. The spring is disposed between the pressing pin and the connecting sleeve. The pressing pin corresponds to the positioning pin.

[0008] Preferably, the device further includes multiple support columns, which are evenly arranged around the circumference of the positioning device, and the height of the support columns corresponds to the height of the positioning disk.

[0009] Preferably, the lower end of the support frame is equipped with a directional wheel and a swivel wheel, and the swivel wheel is a brakeable swivel wheel.

[0010] Preferably, two adjacent sidewalls of the seat plate are fitted with fixing plates by fasteners, and multiple gaskets are provided between the fixing plates and the seat plate.

[0011] The beneficial effects of this utility model are: the positioning plate and support column of the flange positioning device support the flange to be welded, multiple positioning pins position the nut to be welded, and the pressing pin of the pressing pin device presses the nut to be welded and the flange to be welded together, ensuring the accuracy of the relative position of the nut to be welded and the flange to be welded, ensuring the welding quality, and the operation is simple, time-saving and labor-saving. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the pressing pin device of this utility model;

[0015] Figure 4 This is a schematic diagram of the amplitude plate positioning device of this utility model;

[0016] Figure 5 This is a schematic diagram of the welding of the left-side disc;

[0017] Figure 6 This is a schematic diagram of the welding of the left flange, the reinforcing flange, and the nut to be welded according to this utility model;

[0018] Figure 7 This is a schematic diagram of the side panel welding process;

[0019] Figure 8 This is a schematic diagram of the welding side plate, the reinforcing plate, and the nut to be welded according to this utility model.

[0020] The reference numerals in the attached drawings are as follows: 1. Support base; 2. Support frame; 3. Cylinder seat; 4. Seat plate; 5. Pressing pin device; 6. Support column; 7. Two-piece assembly; 8. Pneumatic valve assembly; 9. Control button; 10. Cylinder; 11. Spread plate positioning device; 12. Directional wheel; 13. Universal wheel; 14. Connecting sleeve; 15. Pressing pin; 16. Spring; 17. Flat washer; 18. Spring washer; 19. Nut; 20. Positioning plate; 21. Positioning pin; 22. Seat plate; 23. Fixing plate; 24. Shim; 25. Cylindrical positioning surface;

[0021] 100, Left flange; 200, Reinforced flange; 300, Nut to be welded; 400, Side flange. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1 to 8 As shown, this utility model discloses a clamping fixture for the drum disc of a wheat harvester, including a support base 1, a support frame 2, a seat plate 4, a pressing pin device 5, a cylinder 10, and a disc positioning device 11. The support frame 2 and the disc positioning device 11 are mounted on the support base 1. The lower end of the support frame 1 is equipped with a directional wheel 12 and a universal wheel 13, and the universal wheel 13 is a brakeable universal wheel, which facilitates the movement of the clamping fixture and improves the ease of use. A control button 9 is mounted on the support frame 2 and is used to control the working state of the cylinder 10. The cylinder 10 is mounted on the support frame 2 via a cylinder seat 3, and the seat plate 4 is mounted on the output end of the cylinder 10. The pressing pin device 5 is installed on the base plate 4 and is located directly above the flange positioning device 11. The pressing pin device 5 cooperates with the flange positioning device 11 to clamp the flange to be welded and the nut to be welded 300. When the cylinder 10 works, it drives the pressing pin device 5 to rise and fall, thereby clamping the flange to be welded and the nut to be welded 300. The flanges to be welded are the left flange 100, the reinforcing flange 200, and the side flange 400. In use, the flange 100, the reinforcing flange 200, and the nut to be welded 300 are welded together, or the side flange 400, the reinforcing flange 200, and the nut to be welded 300 are welded together, which meets the usage requirements in various situations and reduces the usage cost.

[0024] The support base 1 is equipped with a dual-unit assembly 7 and a pneumatic control valve assembly 8. The dual-unit assembly 7 includes an air filter and a pressure reducing valve. The air filter is used to filter impurities and moisture in the compressed air to ensure that clean air is input into the cylinder 10. The pressure reducing valve is used to adjust the pressure of the compressed air to meet the needs of the pneumatic system. The pneumatic control valve assembly 8 is used to control the start or stop of the cylinder 10. The dual-unit assembly 7 and the pneumatic control valve assembly 8 adopt existing technology.

[0025] Specifically, the web plate positioning device 11 includes a positioning plate 20, positioning pins 21, a base plate 22, and a cylindrical positioning surface 25. The base plate 22 is mounted on the support base 1, the positioning plate 20 is mounted on the base plate 22, and the cylindrical positioning surface 25 is mounted on the positioning plate 20. Multiple positioning pins 21 are provided, arranged circumferentially along the cylindrical positioning surface 25. In this embodiment, six positioning pins 21 are evenly arranged circumferentially along the cylindrical positioning surface 25. The positioning plate 20 supports the web plate to be welded. The cylindrical positioning surface 25 corresponds to the positioning hole in the middle of the web plate to be welded, and the positioning pins 21 correspond to the nut 300 to be welded. This achieves precise positioning of the web plate to be welded and the nut 300 to be welded, ensuring welding quality and reducing welding intensity.

[0026] Furthermore, two adjacent sidewalls of the base plate 22 are fitted with fixing plates 23 by fasteners, and multiple shims 24 are provided between the fixing plates 23 and the base plate 22. By increasing or decreasing the number of shims 24, the position of the base plate 22 can be adjusted to ensure that the positioning pins 21 and the cylindrical positioning surface 25 accurately position the workpiece to be welded.

[0027] Specifically, the pressing pin device 5 includes a connecting sleeve 14, a pressing pin 15, and a spring 16. The pressing pin 15 passes through the connecting sleeve 14 and is connected to the base plate 4. Specifically, the upper end of the pressing pin 15 is mounted on the base plate 4 through a flat washer 17, a spring washer 18, and a nut 19. The spring 16 is disposed between the pressing pin 15 and the connecting sleeve 14. The pressing pin 15 corresponds to the positioning pin 21.

[0028] The clamping fixture for the drum web of the wheat harvester also includes multiple support columns 6, which are evenly arranged circumferentially along the web positioning device 11. The height of the support columns 6 corresponds to the height of the positioning plate 20. By having the support columns 6 and the positioning plate 20 jointly support the web to be welded, the support area of ​​the web to be welded is increased, the stability of the web to be welded is improved, and the welding quality is further guaranteed.

[0029] The usage process of this utility model is as follows:

[0030] First, operate the control button 9 to raise the cylinder 10, which carries the seat plate 4 and the pressing pin device 5.

[0031] Then place the left-side disk 100 onto the fixture, see [reference]. Figure 5 and Figure 6 As shown, the lower plane of the left width plate 100 is supported by the positioning plate 20 and the support column 6 of the width plate positioning device 11. The cylindrical positioning surface 25 of the width plate positioning device 11 is used to position the positioning hole 1 in the middle of the left width plate 100. The positioning pin 21 of the width plate positioning device 11 is used to position the multiple inner holes 1 outside the positioning hole 1. The position of the inner holes 1 corresponds to the position of the nut 300 to be welded.

[0032] The reinforcing flange 200 is placed on the tooling. Specifically, the upper plane of the left flange 100 supports the lower plane of the reinforcing flange 200. The cylindrical positioning surface 25 of the flange positioning device 11 is used to position the positioning hole 2 in the middle of the reinforcing flange 200, so that the reinforcing flange 200 and the left flange 100 are placed coaxially. The positioning pin 21 of the flange positioning device 11 is used to position the multiple inner holes 2 outside the positioning hole 2, so that the inner holes 2 and the inner holes are placed coaxially.

[0033] Then, the nut 300 to be welded is placed on the tooling. Specifically, the positioning pin 21 of the flange positioning device 11 is used to position the threaded hole of the nut 300 to be welded, so that the inner hole one of the left flange 100, the inner hole two of the reinforcing flange 200 and the threaded hole of the nut 300 to be welded are placed coaxially, and the step of the nut 300 to be welded is placed into the inner hole two of the reinforcing flange 200, and the upper surface of the reinforcing flange 200 supports the nut 300 to be welded.

[0034] Then, operate control button 9 to move cylinder 10, along with seat plate 4 and pressing pin device 5, downwards. This causes the lower end face of pressing pin 15 to overcome the elastic force of spring 16 and press onto the upper surface of the nut 300 to be welded. Nut 19 at the upper end of pressing pin 15 separates from seat plate 4, tightly pressing the nut 300, reinforcing flange 200, and left flange 100 together. Because spring 16 is provided between pressing pin 15 and connecting sleeve 14, it ensures that all nuts 300 to be welded are pressed tightly, guaranteeing welding quality. Then, weld each weld according to the drawing requirements.

[0035] After welding is completed, operate control button 9 to make cylinder 10 lift the seat plate 4 and the pressing pin device 5 upward. The pressing pin 15 moves downward and resets under the action of spring 16. The nut 19 at the upper end of the pressing pin 15 contacts the seat plate 4, and the welded left side plate is removed from the tooling.

[0036] Then, using the same method, position and clamp the side flange 400, reinforcing flange 200, and welding nut 300, as described above. Figure 6 and Figure 7 As shown, weld each seam according to the drawing requirements, and then use the same method to remove the side discs from the tooling and weld them together. This allows the two types of discs to share the same clamping tooling, improving the applicability and reducing processing costs.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hold down tool for a wheat machine cylinder apron, characterised in that, The device comprises a support base (1), a support frame (2), a seat disc (4), a pin pressing device (5), a cylinder (10) and a disc positioning device (11), the support frame (2) and the disc positioning device (11) are installed on the support base (1), the cylinder (10) is installed on the support base (1), the seat disc (4) is installed on the output end of the cylinder (10), the pin pressing device (5) is installed on the seat disc (4), the pin pressing device (5) is located directly above the disc positioning device (11), and the pin pressing device (5) is matched with the disc positioning device (11) to clamp the to-be-welded disc and the to-be-welded nut (300).

2. A compression tool for a wheat drum apron according to claim 1, characterised in that, The disc positioning device (11) comprises a positioning disc (20), a positioning pin (21), a seat plate (22) and a cylindrical positioning surface (25), the positioning disc (20) is installed on the seat plate (22), the cylindrical positioning surface (25) is installed on the positioning disc (20), and a plurality of positioning pins (21) are arranged in a circumferential direction of the cylindrical positioning surface (25), the positioning disc (20) is used for supporting the to-be-welded disc, the cylindrical positioning surface (25) corresponds to the positioning hole of the to-be-welded disc, and the positioning pin (21) corresponds to the to-be-welded nut (300).

3. A compression tool for a wheat drum apron according to claim 2, characterised in that, The pin pressing device (5) comprises a connecting sleeve (14), a pin (15) and a spring (16), the pin (15) is connected with the seat disc (4) through the connecting sleeve (14), the spring (16) is arranged between the pin (15) and the connecting sleeve (14), and the pin (15) corresponds to the positioning pin (21).

4. A compression tool for a wheat drum apron according to claim 2 or 3, characterised in that, A plurality of supporting columns (6) are arranged in a circumferential direction of the disc positioning device (11) uniformly, and the height of the supporting column (6) corresponds to the height of the positioning disc (20).

5. The presser tooling for a wheat mill cylinder screen according to claim 1, wherein, A directional wheel (12) and a universal wheel (13) are installed at the lower end of the support frame (2), and the universal wheel (13) is a brakeable universal wheel.

6. The presser tooling for a wheat drum apron of claim 2, wherein, Two adjacent side walls of the seat plate (22) are provided with a fixing plate (23) through fasteners, and a plurality of spacers (24) are arranged between the fixing plate (23) and the seat plate (22).

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