Feeding cone subsequent welding tool

Abstract

The utility model relates to a feeding cone subsequent welding tool which comprises a first pin device, a first rhombus pin device, a first supporting plate, a first clamping device, a second pin device, a second rhombus pin device, a mistake proofing device, a second mistake proofing pin, a reinforcing rib positioning plate, a pressing mechanism and a blade clamping mechanism. The first pin device, the first diamond pin device and the second mistake-proof pin are used for positioning the rear spoke disc, and the first clamping device is matched with the first supporting plate to be used for clamping the rear spoke disc. The second positioning face of the first supporting plate is used for supporting the conical barrel, the second pin device, the second diamond pin device and the mistake proofing device are used for positioning the front spoke disc, the pressing mechanism is used for pressing the front spoke disc, the two blade clamping mechanisms are used for clamping two spiral blades respectively, and a plurality of positioning notches are formed in the reinforcing rib positioning plate and used for positioning reinforcing ribs. The accuracy of the positions of all the to-be-welded parts is guaranteed, the follow-up welding quality is guaranteed, the clamping difficulty of all the to-be-welded parts is lowered, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically to a welding fixture for a feeding cone. Background Technology

[0002] In wheat harvesters, the axial flow drum used for threshing is a crucial component of the threshing system, installed inside the harvester body. The feed cone is a welded part of the axial flow drum, comprising a front spoke, a conical cylinder, and a rear spoke. The front and rear auxiliary spokes are welded to both ends of the conical cylinder, and multiple helical blades and reinforcing ribs are welded to the outer side of the conical cylinder. Because the conical cylinder is difficult to position, it is often welded in two steps: first, the front spoke and the conical cylinder are welded together, and then the rear spoke, helical blades, and reinforcing ribs are welded to the conical cylinder. Existing welding fixtures for the feed cone are mostly simple, resulting in inaccurate positioning of the conical cylinder and helical blades, making it difficult to guarantee the welding quality of the helical blades, and the operation is time-consuming and labor-intensive. Utility Model Content

[0003] This utility model addresses the existing technical problems by providing a welding fixture for the subsequent feeding of a cone.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A welding fixture for a feeding cone includes a first pin device, a first rhombus pin device, a first support plate, a first clamping device, a second pin device, a second rhombus pin device, an anti-misalignment device, an anti-misalignment pin, a reinforcing rib positioning plate, a clamping mechanism, and a blade clamping mechanism. The positioning surface of the first support plate is used to support the rear spoke plate. The first pin device, the first rhombus pin device, and the second anti-misalignment pin are used to position the rear spoke plate. The first clamping device cooperates with the first support plate to clamp the rear spoke plate. The positioning surface of the first part is used to support the conical cylinder. The second pin device, the second diamond pin device, and the anti-misalignment device are used to position the front spoke. The clamping mechanism is used to clamp the front spoke. The blade clamping mechanism is provided in two sets, which are symmetrically arranged on both sides of the clamping mechanism. The two sets of blade clamping mechanisms are used to clamp two helical blades respectively. The reinforcing rib positioning plate is arc-shaped and has multiple positioning notches. The position and number of the positioning notches correspond to the position and number of the reinforcing ribs to be welded.

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

[0006] Preferably, multiple pallets and clamping devices are evenly arranged along the circumference of the pressing mechanism, and the position and number of pallets correspond to the position and number of clamping devices.

[0007] Preferably, the first pin device includes a first pin, which is adapted to the first positioning hole of the rear spoke; the first diamond pin device includes a first diamond pin, which is adapted to the second positioning hole of the rear spoke; and the second anti-misalignment pin is adapted to the third positioning hole of the rear spoke.

[0008] Preferably, the second pin device includes a second pin, the second diamond pin device is adapted to the fourth positioning hole of the front spoke, the second diamond pin device includes a second diamond pin, the second diamond pin is adapted to the fifth positioning hole of the front spoke, the anti-misalignment device includes a support plate and an anti-misalignment pin one installed on the support plate, the anti-misalignment pin one is provided in two, the two anti-misalignment pins one are adapted to the sixth positioning hole and the seventh positioning hole of the front spoke respectively.

[0009] Preferably, each blade clamping mechanism includes a clamping assembly one, a clamping assembly two, and a clamping assembly three. The clamping assembly one includes a cooperating blade support plate device one and a lower clamping device. The blade support plate device one includes a support plate three, which is provided with a positioning surface four and a positioning surface five. The positioning surface five is used to position one end face of the helical blade. The positioning surface four cooperates with the clamping assembly two and the clamping assembly three to support the helical blade. The lower clamping device cooperates with the positioning surface four to press the helical blade.

[0010] Preferably, the second clamping assembly is located between the first clamping assembly and the third clamping assembly. The second clamping assembly includes a second blade support device and a second clamping device. The second blade support device is used to support the helical blade, and the pressure plate of the second clamping device cooperates with the second blade support device to clamp the helical blade.

[0011] Preferably, the clamping assembly three includes a cooperating blade support plate device three and an upper clamping device. The blade support plate device three includes a support plate two, and the support plate two is provided with a positioning surface three. The positioning surface three is used to support the helical blade. The upper clamping device cooperates with the positioning surface three to press the helical blade.

[0012] Preferably, the height of the third blade support device is greater than the height of the second blade support device, and the height of the second blade support device is greater than the height of the first blade support device.

[0013] Preferably, the end of the reinforcing rib positioning plate is aligned with the end of the spiral blade, and the reinforcing rib positioning plate is parallel to the spiral blade.

[0014] Preferably, the clamping mechanism includes a stud seat and a clamping member 1. The stud seat includes a base plate and a stud. The stud is mounted on the base plate. The clamping member 1 includes a connecting ring and a pressure rod. Multiple pressure rods are provided along the circumference of the connecting ring. The clamping member 1 is mounted on the stud through the connecting ring and a clamping nut 2.

[0015] The beneficial effects of this utility model are: the rear spoke, conical cylinder and front spoke are stably and firmly clamped by the pin device, diamond pin device, error prevention device and support plate, the spiral blade is clamped by the blade clamping mechanism, and the reinforcing rib is positioned by the reinforcing rib positioning plate, so as to achieve accurate positioning of all parts to be welded, ensure the accuracy of the position of each part to be welded, ensure the quality of subsequent welding, simplify the operation, reduce the clamping difficulty of each part to be welded, and improve the welding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the welding fixture of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the welding fixture of this utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the structure of the pin device of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the rhomboid pin device of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the stud seat of this utility model;

[0021] Figure 6 This is a structural schematic diagram of the clamping component of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the blade support plate device three of this utility model;

[0023] Figure 8 A schematic diagram of the clamping device of this utility model;

[0024] Figure 9 This is a schematic diagram of the structure of the second type of pin device of this utility model;

[0025] Figure 10 This is a schematic diagram of the second clamping device of this utility model;

[0026] Figure 11 This is a schematic diagram of the structure of the second rhomboid pin device of this utility model;

[0027] Figure 12 This is a schematic diagram of the error prevention device of this utility model;

[0028] Figure 13 This is a schematic diagram of the upper clamping device of this utility model;

[0029] Figure 14 This is a schematic diagram of the lower clamping device of this utility model;

[0030] Figure 15 This is a schematic diagram of the structure of the blade support plate device of this utility model;

[0031] Figure 16 This is a schematic diagram of the feeding cone structure;

[0032] Figure 17 A schematic diagram of the structure at another angle of the feeding cone;

[0033] Figure 18 This is a schematic diagram of the structure of this utility model in use;

[0034] Figure 19 This is a schematic diagram from another angle when the present invention is in use.

[0035] The reference numerals in the attached drawings are as follows: 1. Base plate; 2. Pin device 1; 25. Fixing base 1; 26. L-shaped adjustment reference block 1; 28. Pin seat 1; 29. ​​Pin 1;

[0036] 3. One rhombus pin device; 30. One rhombus pin;

[0037] 4. Pallet 1; 4.1. Positioning Surface 1; 4.2. Positioning Surface 2; 5. Intermediate Seat;

[0038] 6. Stud seat; 31. Base plate; 32. Stud;

[0039] 7. Clamping component 1; 33. Connecting ring; 34. Pressure rod;

[0040] 8. Blade support plate device one; 66. Support plate three; 66.1. Positioning surface four; 66.2. Positioning surface five; 9. Blade support plate device two;

[0041] 10. Blade support plate device three; 35. L-shaped adjustment reference block two; 36. Shim; 37.1. Positioning surface three; 37. Support plate two;

[0042] 11. Clamping device one; 38. Fixed base two; 39. Rotary clamping cylinder;

[0043] 12. Pin assembly two; 40. Pin seat two; 41. Pin two;

[0044] 13. Clamping device two; 42. Fixed base three; 43. Clamping cylinder; 44. Support plate; 45. Fixed plate; 46. Clamping plate two; 48. Pressure plate; 65. Pin two;

[0045] 14. Diamond pin device two; 49. Pin seat three; 50. Diamond pin two;

[0046] 15. Pneumatic system; 16. Two clamping nuts;

[0047] 17. Error-proofing device; 51. Support plate; 52. Error-proofing pin one; 19. Error-proofing pin two;

[0048] 22. Upper clamping device; 53. Fixed seat four; 54. Support seat; 55. Pin one; 56. Lap plate; 57. Clamping part two; 58. Clamping bolt; 59. Baffle; 60. Clamping block;

[0049] 23. Lower clamping device; 61. Fixed base five; 62. Clamping device; 64. Pad block; 24. Reinforcing rib positioning plate;

[0050] 100. Rear spoke; 101. Positioning hole one; 102. Positioning hole two; 103. Positioning hole three; 200. Conical cylinder; 201. Positioning groove; 202. Edge; 300. Front spoke; 301. Positioning hole four; 302. Positioning hole five; 303. Positioning hole six; 304. Positioning hole seven; 400. Spiral blade; 500. Reinforcing rib. Detailed Implementation

[0051] 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.

[0052] like Figures 1 to 19 As shown, this utility model discloses a welding fixture for a feeding cone, including a base plate 1 and a pin device 2, a diamond pin device 3, a support plate 4, a clamping device 11, a pin device 2 12, a diamond pin device 2 14, an anti-misalignment device 17, an anti-misalignment pin 2 19, a reinforcing rib positioning plate 24, a pressing mechanism, and a blade clamping mechanism mounted on the base plate 1. The positioning surface 4.1 of the support plate 4 is used to support the rear spoke 100. The pin device 2, the diamond pin device 3, and the anti-misalignment pin 2 19 are used to position the rear spoke 100. The clamping device 11 cooperates with the support plate 4 to clamp the rear spoke 100.

[0053] In this embodiment, the pin device 2 includes a pin 29, which is adapted to the positioning hole 101 of the rear spoke 100. The diamond pin device 3 includes a diamond pin 30, which is adapted to the positioning hole 102 of the rear spoke 100. The anti-misalignment pin 19 is adapted to the positioning hole 103 of the rear spoke 100.

[0054] Specifically, the support structures of the pin device 12 and the diamond pin device 13 are the same. The support structure includes a fixed base 125 and an L-shaped adjustment reference block 126 and a pin seat 128 installed on the fixed base 125. The L-shaped adjustment reference block 126 is located on the outside of the pin seat 128. Adjustment pads are provided between the two sides of the L-shaped adjustment reference block 126 and the pin seat 128. The adjustment pads are installed on the L-shaped adjustment reference block 126 by screws. By increasing or decreasing the number of adjustment pads, the positions of the pin seat 128, the pin 129, and the diamond pin 130 can be adjusted to ensure that the pin 129 can be properly inserted into the positioning hole 101 of the rear spoke 100 and the diamond pin 130 can be properly inserted into the positioning hole 102, reducing the clamping difficulty and ensuring the positioning effect.

[0055] Multiple pallets 4 and clamping devices 11 are evenly arranged along the circumference of the clamping mechanism. The position and number of pallets 4 correspond to the position and number of clamping devices 11 to ensure the support and clamping effect on the rear spoke 100. In this embodiment, there are six pallets 4 and six clamping devices 11. The clamping device 11 includes a fixed base 38, on which a rotary clamping cylinder 39 is installed. A clamping plate is installed at the output end of the rotary clamping cylinder 39. The rotary clamping cylinder 39 drives the clamping plate to cooperate with the pallet 4 to clamp the rear spoke 100 and ensure the firmness of the rear spoke 100 clamping.

[0056] The positioning surface 4.2 of the pallet 4 is used to support the conical cylinder 200. The height of the positioning surface 4.2 is less than the height of the positioning surface 4.1, and the positioning surface 4.2 is located outside the positioning surface 4.1. The pin device 12, the diamond pin device 14 and the anti-misalignment device 17 are used to position the front spoke 300, and the clamping mechanism is used to clamp the front spoke 300.

[0057] Specifically, the pin device 2 12 includes a pin seat 2 40 and a pin 2 41 mounted on the pin seat 2 40. The pin seat 2 40 is mounted on the mounting plate at the upper end of the intermediate seat 5. The diamond-shaped pin device 2 14 is used to match the positioning hole 4 301 of the front spoke 300. An L-shaped adjustment reference block 1 26 is mounted on the outer side of the pin seat 2 40. Adjustment pads are provided between the two sides of the L-shaped adjustment reference block 1 26 and the pin seat 2 40. The adjustment pads are mounted on the L-shaped adjustment reference block 1 26 by screws. By increasing or decreasing the number of adjustment pads, the position of the pin seat 2 40 and the pin 2 41 can be adjusted to ensure that the pin 2 41 can be smoothly inserted into the positioning hole 4 301 of the front spoke 300, reducing the positioning difficulty and improving the convenience of use.

[0058] The diamond pin device 214 includes a pin seat 349 and a diamond pin 250 mounted on the pin seat 349. An L-shaped adjustment reference block 126 is mounted on the outside of the pin seat 349. The diamond pin 250 is used to fit with the positioning hole 5302 of the front spoke 300.

[0059] The error prevention device 17 includes a support plate 51 and an error prevention pin 52 mounted on the support plate 51. The support plate 51 is mounted on the mounting plate at the upper end of the intermediate seat 5. There are two error prevention pins 52, which are respectively adapted to the positioning holes 303 and 304 of the front spoke 300.

[0060] By cooperating with positioning surface 2 4.2, post pin 2 41, and rhomboid pin 2 50, the position of the front spoke plate 300 is defined. Furthermore, by matching the anti-misalignment pin 1 52 with positioning hole 6 303 and positioning hole 7 304, the accuracy of the position of the front spoke plate 300 is further ensured, thus guaranteeing the quality of subsequent welding.

[0061] In this embodiment, the clamping mechanism includes an intermediate seat 5, a stud seat 6, and a clamping component 7. The stud seat 6 includes a base plate 31 and a stud 32. The stud 32 is mounted on the base plate 31. The intermediate seat 5 has a through hole for the stud 32 to pass through, saving space and making the overall structure more compact. The clamping component 7 includes a connecting ring 33 and a pressure rod 34. Multiple pressure rods 34 are provided around the connecting ring 33. The clamping component 7 is mounted on the stud 32 through the connecting ring 33 and then fixed by a clamping nut 16 to ensure that the clamping component 7 firmly clamps the front spoke 300.

[0062] In this embodiment, there are two sets of blade clamping mechanisms, which are symmetrically arranged on both sides of the clamping mechanism. The two sets of blade clamping mechanisms are used to clamp two helical blades 400 respectively.

[0063] Specifically, each blade clamping mechanism includes clamping assembly one, clamping assembly two, and clamping assembly three. Clamping assembly one includes a matching blade support plate device one 8 and a lower clamping device 23. Blade support plate device one 8 includes a support plate three 66. An L-shaped adjustment reference block two 35 is provided on the outer side of support plate three 66 for adjusting the position of support plate three 66. Positioning surface four 66.1 and positioning surface five 66.2 are provided on support plate three 66.2. Positioning surface five 66.2 is used to position one end face of the spiral blade 400 to ensure the accuracy of the spiral blade 400's position and ensure the quality of subsequent welding. Positioning surface four 66.1 cooperates with clamping assembly two and clamping assembly three to support the spiral blade 400. The lower clamping device 23 cooperates with positioning surface four 66.1 to press the spiral blade 400, ensuring the firmness of the spiral blade 400 clamping, reducing the wobbling of the spiral blade 400, and further ensuring the quality of subsequent welding.

[0064] Specifically, the lower clamping device 23 includes a fixed base 61, a clamping device 62, and a pad 64. The clamping device 62 is installed on the fixed base 61, and the pad 64 is connected to the clamping device 62. By operating the clamping device 62, the pad 64 is rotated, thereby pressing the spiral blade 400 onto the positioning surface 66.1 to ensure the firmness of the positioning of the spiral blade 400 and to ensure the quality of subsequent welding.

[0065] Furthermore, clamping assembly two is located between clamping assembly one and clamping assembly three. Clamping assembly two includes a cooperating blade support plate device two 9 and clamping device two 13. Blade support plate device two 9 is used to support the helical blade 400. The pressure plate 48 of clamping device two 13 cooperates with blade support plate device two 9 to clamp the helical blade 400.

[0066] Specifically, the clamping device 213 includes a fixed base 342 and a clamping cylinder 43. The output end of the clamping cylinder 43 is connected to a clamping plate 246. A pressure plate 48 is installed on the clamping plate 246. The clamping plate 246 is installed on a support plate 44. The support plate 44 is installed on a fixed plate 45 via a pin 265. The fixed plate 45 is equipped with the fixed base 342. The clamping cylinder 43 drives the clamping plate 246 and the pressure plate 48 to press the spiral blade 400 onto the blade support plate device 29, ensuring the stability and firmness of the spiral blade 400 clamping and ensuring the quality of subsequent welding.

[0067] Furthermore, a stop is provided on the outer side of the pressure plate 48 to limit the position of the spiral blade 400, thereby ensuring the positioning accuracy of the spiral blade 400 and improving the welding quality.

[0068] Furthermore, the clamping assembly three includes a mating blade support plate device three 10 and an upper clamping device 22, see [reference]. Figure 7 As shown, the blade support plate device 310 includes a support plate 2 37. An L-shaped adjustment reference block 2 35 is installed on the outer side of the lower end of the support plate 2 37. Multiple shims 36 are provided between the L-shaped adjustment reference block 2 35 and the base of the support plate 2 37. By increasing or decreasing the number of shims 36, the position of the support plate 2 37 can be adjusted to ensure the support effect on the spiral blade 400. The support plate 2 37 is provided with a positioning surface 37.1. The positioning surface 37.1 is used to support the spiral blade 400. The upper clamping device 22 cooperates with the positioning surface 37.1 to press the spiral blade 400.

[0069] For details, see Figure 13As shown, the upper clamping device 22 includes a fixed base 4 53, on which two support bases 54 are mounted. A pin 1 55 is mounted on the side of the support base 54. A clamping member 2 57 is rotatably mounted on the support base 54 via the pin 1 55. A mounting plate 56 and the clamping member 2 57 are mounted on the support base 54. A clamping bolt 58 is mounted on the clamping member 2 57. A baffle 59 and a clamping block 60 are mounted on the end of the clamping bolt 58. By rotating the clamping member 2 57, the clamping bolt 58 and the clamping block 60 move up and down, thereby pressing the spiral blade 400. When the clamping member 2 57 rotates to the position shown in the figure, the mounting plate 56 is installed in the groove on the fixed base 54, which limits the position of the clamping member 2 57, prevents the clamping member 2 57 from rotating backward, and ensures that the clamping block 60 firmly presses the spiral blade 400, further ensuring the firmness of the spiral blade 400 clamping and ensuring the welding quality.

[0070] Furthermore, the height of blade support device 3 10 is greater than the height of blade support device 2 9, and the height of blade support device 2 9 is greater than the height of blade support device 1 8, which meets the positioning requirements of the spiral blade 400 being inclinedly welded onto the conical cylinder 200 and ensures the welding quality.

[0071] In this embodiment, the reinforcing rib positioning plate 24 is arc-shaped, and multiple positioning notches are provided on the inner side of the reinforcing rib positioning plate 24. The position and number of positioning notches correspond to the position and number of reinforcing ribs 500 to be welded. The positioning notches are used to position the reinforcing ribs 500 and to define the relative positions between the multiple reinforcing ribs 500. The end of the reinforcing rib positioning plate 24 is aligned with the end of the spiral blade 400, and the reinforcing rib positioning plate 24 is parallel to the spiral blade 400 to ensure the accuracy of the positioning of the reinforcing ribs 500 and to ensure the welding quality.

[0072] The usage process of this welding fixture is as follows:

[0073] 1. Clamping the rear spoke 100: Place the rear spoke 100 with the feeding cone on the six positioning surfaces 4.1 of the six-piece support plate 4. Insert the pin 29 of the pin device 2 into the positioning hole 101 of the rear spoke 100. Insert the diamond pin 30 of the diamond pin device 3 into the positioning hole 102 of the rear spoke 100. Insert the anti-misalignment pin 19 into the positioning hole 103 of the rear spoke 100. Use one side and two pins to position the surface and hole of the rear spoke 100. At the same time, insert the anti-misalignment pin 19 into the positioning hole 103 to prevent the rear spoke 100 from being misaligned. Then operate the air circuit system 15 and use the rotary clamping cylinder 39 of the clamping device 11 to clamp the top of the rear spoke 100.

[0074] 2. Positioning the conical cylinder 200 and the front spoke plate 300: Place the six edges 202 of the conical cylinder 200 into the feeding cone on the six positioning surfaces 4.2 of the six support plates 4, and support it. Use the rounded edge of the rear spoke plate 100 to position the positioning groove 201 at the upper end of the conical cylinder 200. Place the positioning hole 301 of the front spoke plate 300 on the pin 41 of the pin device 12, and place the positioning hole 302 of the front spoke plate 300 on the diamond pin 50 of the diamond pin device 14. At the same time, the two anti-mistake pins 52 of the anti-mistake device 17 are inserted into the positioning hole 303 and the positioning hole 304 of the front spoke plate 300. The conical cylinder 200 and the front spoke 300 are positioned vertically, horizontally, backwardly, and rotatingly using a modified plane, a rounded edge, and two pins. At the same time, two anti-misalignment pins 52 are inserted into positioning holes 6 303 and 7 304 respectively to prevent positional errors and ensure the accuracy of the welded structure.

[0075] 3. Tighten the front spoke 300: Place the connecting ring 33 of clamping part 17 on the stud 32 of stud seat 6, screw the clamping nut 26 into the stud 32 of stud seat 6, put the sleeve on the clamping nut 26, and use a pneumatic wrench to drive the sleeve 18 to rotate, thereby tightening the clamping nut 26 and pressing clamping part 17 onto the front spoke 300, thus clamping the conical cylinder 200 and the front spoke 300.

[0076] 4. Clamping the helical blades 400: Two helical blades 400 to be welded are provided, and two sets of blade clamping mechanisms are provided for clamping the helical blades 400. Taking one helical blade 400 as an example, the clamping process is described as follows: One end face of the helical blade 400 is placed on the positioning surface 66.2 of the blade support device 18 to achieve initial positioning. The helical blade 400 is then placed on the positioning surfaces 66.1 of the blade support device 18, 37.1 of the blade support device 30, and the corresponding positioning surfaces of the blade support device 29. Then, the pad 64 of the lower clamping device 23 is used to press the lower position of the helical blade 400. The air circuit system 15 is operated, and the pressure plate 48 of the clamping device 23 is used to press the middle position of the helical blade 400. The clamping block 60 of the upper clamping device 22 is used to press the upper position of the helical blade 400. The clamping process of the other helical blade 400 is the same and will not be described again. This achieves positioning and clamping of the two helical blades 400.

[0077] 5. Clamping the reinforcing rib 500: Hold the reinforcing rib positioning plate 24 and make one end of the reinforcing rib positioning plate 24 flush with and parallel to the end of one of the spiral blades 400. Place multiple reinforcing ribs 500 in sequence on the positioning notch of the reinforcing rib positioning plate 24, with the lower end of the reinforcing rib 500 placed on the spiral blade 400 to achieve positioning of the reinforcing rib 500.

[0078] 6. Welding: Each weld seam is welded using a carbon dioxide shielded welding machine;

[0079] 7. Re-welding: Align the reinforcing rib positioning plate 24 with another spiral blade 400, and place the multiple reinforcing ribs 500 corresponding to the spiral blade 400 on the positioning notch of the reinforcing rib positioning plate 24, and weld the reinforcing ribs 500.

[0080] 8. Repair welding: Loosen all pneumatic clamps, manual clamps and pressure nuts 16, remove the feed cone from the welding fixture, and repair all unwelded seams.

[0081] This welding fixture has accurate overall positioning, ensuring the stability and firmness of the clamping of each part to be welded, guaranteeing welding quality, and is simple to operate, thus improving welding efficiency.

[0082] 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 welding fixture for a feed cone, characterized in that, The system includes a pin device 1 (2), a diamond pin device 1 (3), a support plate 1 (4), a clamping device 1 (11), a pin device 2 (12), a diamond pin device 2 (14), an anti-misalignment device (17), an anti-misalignment pin 2 (19), a reinforcing rib positioning plate (24), a clamping mechanism, and a blade clamping mechanism. The positioning surface 1 (4.1) of the support plate 1 (4) is used to support the rear spoke (100). The pin device 1 (2), the diamond pin device 1 (3), and the anti-misalignment pin 2 (19) are used to position the rear spoke (100). The clamping device 1 (11) cooperates with the support plate 1 (4) to clamp the rear spoke (100). The positioning surface 1 (4) of the support plate 1 (4) is used to support the rear spoke (100). Surface 2 (4.2) is used to support the conical cylinder (200). The pin device 2 (12), the diamond pin device 2 (14) and the anti-misalignment device (17) are used to position the front spoke (300). The clamping mechanism is used to clamp the front spoke (300). The blade clamping mechanism is provided in two sets. The two sets of blade clamping mechanisms are symmetrically arranged on both sides of the clamping mechanism. The two sets of blade clamping mechanisms are used to clamp two helical blades (400) respectively. The reinforcing rib positioning plate (24) is arc-shaped. The reinforcing rib positioning plate (24) is provided with multiple positioning notches. The position and number of the positioning notches correspond to the position and number of the reinforcing ribs (500) to be welded.

2. The welding fixture for the feed cone as described in claim 1, characterized in that, The pallet (4) and the clamping device (11) are evenly arranged in multiple ways along the circumference of the pressing mechanism. The position and number of the pallet (4) correspond to the position and number of the clamping device (11).

3. The welding fixture for the feed cone according to claim 2, characterized in that, The first pin device (2) includes a first pin (29), which is adapted to the first positioning hole (101) of the rear spoke (100). The first diamond pin device (3) includes a first diamond pin (30), which is adapted to the second positioning hole (102) of the rear spoke (100). The second anti-misalignment pin (19) is adapted to the third positioning hole (103) of the rear spoke (100).

4. The welding fixture for the feed cone according to claim 2, characterized in that, The second pin device (12) includes a second pin (41), the second diamond pin device (14) is adapted to the fourth positioning hole (301) of the front spoke (300), the second diamond pin device (14) includes a second diamond pin (50), the second diamond pin (50) is adapted to the fifth positioning hole (302) of the front spoke (300), the anti-misalignment device (17) includes a support plate (51) and an anti-misalignment pin (52) installed on the support plate (51). There are two anti-misalignment pins (52), and the two anti-misalignment pins (52) are adapted to the sixth positioning hole (303) and the seventh positioning hole (304) of the front spoke (300) respectively.

5. The welding fixture for the feed cone according to claim 1, characterized in that, Each blade clamping mechanism includes clamping assembly one, clamping assembly two, and clamping assembly three. Clamping assembly one includes a blade support plate device one (8) and a lower clamping device (23) that cooperate with each other. The blade support plate device one (8) includes a support plate three (66). The support plate three (66) is provided with a positioning surface four (66.1) and a positioning surface five (66.2). The positioning surface five (66.2) is used to position one end face of the helical blade (400). The positioning surface four (66.1) cooperates with the clamping assembly two and the clamping assembly three to support the helical blade (400). The lower clamping device (23) cooperates with the positioning surface four (66.1) to press the helical blade (400).

6. The welding fixture for the feed cone according to claim 5, characterized in that, The second clamping assembly is located between the first clamping assembly and the third clamping assembly. The second clamping assembly includes a second blade support device (9) and a second clamping device (13) that cooperate with each other. The second blade support device (9) is used to support the helical blade (400). The pressure plate (48) of the second clamping device (13) cooperates with the second blade support device (9) to clamp the helical blade (400).

7. The welding fixture for the feed cone according to claim 6, characterized in that, The clamping assembly three includes a cooperating blade support plate device three (10) and an upper clamping device (22). The blade support plate device three (10) includes a support plate two (37), and the support plate two (37) is provided with a positioning surface three (37.1). The positioning surface three (37.1) is used to support the spiral blade (400). The upper clamping device (22) cooperates with the positioning surface three (37.1) to press the spiral blade (400).

8. The welding fixture for the feed cone according to claim 7, characterized in that, The height of the third blade support device (10) is greater than the height of the second blade support device (9), and the height of the second blade support device (9) is greater than the height of the first blade support device (8).

9. The welding fixture for the feed cone according to claim 1, characterized in that, The end of the reinforcing rib positioning plate (24) is aligned with the end of the spiral blade (400), and the reinforcing rib positioning plate (24) is parallel to the spiral blade (400).

10. The welding fixture for the feed cone according to claim 1, characterized in that, The clamping mechanism includes a stud seat (6) and a clamping member (7). The stud seat (6) includes a base plate (31) and a stud (32). The stud (32) is mounted on the base plate (31). The clamping member (7) includes a connecting ring (33) and a pressure rod (34). Multiple pressure rods (34) are provided around the connecting ring (33). The clamping member (7) is mounted on the stud (32) through the connecting ring (33) and a clamping nut (16).

Images