Spinning mechanism

Abstract

The utility model relates to the technical field of spinning equipment, in particular to a spinning mechanism. The spinning wheel is divided into a spinning main wheel, a spinning auxiliary wheel I and a spinning auxiliary wheel II; a working part of the spinning main wheel is provided with a first main spinning convex part, a second main spinning convex part and a third main spinning convex part; a first auxiliary spinning convex part and a second auxiliary spinning convex part are arranged on the working part of the spinning auxiliary wheel I, the first auxiliary spinning convex part is matched with the first main spinning convex part, and the second auxiliary spinning convex part is matched with the third main spinning convex part; a third auxiliary spinning protruding portion and a fourth auxiliary spinning protruding portion are arranged on the working portion of the spinning auxiliary wheel II, the third auxiliary spinning protruding portion is matched with the first main spinning protruding portion, and the fourth auxiliary spinning protruding portion is matched with the second main spinning protruding portion. The spinning main wheel is matched with the two spinning auxiliary wheels for rolling, 1 / 3 of friction amount is reduced, heating of products is reduced within the same time, scouring and lubrication of cooling lubricating oil on the surfaces of the products are increased, and the percent of pass of the products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning equipment, in particular to a spinning mechanism. Background Art

[0002] In the current industrial pipe end spinning forming, there will be sharp corners at the pipe end, the surface smoothness of spinning is poor, and it is very easy to have defects such as aluminum wire, aluminum skin, and aluminum powder. This is because the spinning technology uses a spinning wheel to rotate at high speed to roll the aluminum pipe into the required processed size. When rolling at high speed, high heat will be generated due to high-speed friction with the aluminum pipe, and cooling and other treatments are required to reduce the temperature of the aluminum pipe surface in order to process products that meet the requirements.

[0003] At present, the spinning mechanism is composed of a spinning wheel, a bearing, a fixed shaft, an anti-slip bolt, etc. Among them, the design of the spinning wheel determines the quality state of the product after spinning at the end of the product. At present, three identical rollers are used for spinning the spinning wheel. This spinning will cause sharp corners at the pipe end, poor surface smoothness of spinning, and it is very easy to have defects such as aluminum wire, aluminum skin, and aluminum powder;

[0004] At the same time, since the spinning technology uses a rolling wheel to rotate at high speed to roll the aluminum pipe into the required processed size, high heat will be generated due to high-speed friction with the aluminum pipe when rolling at high speed, and cooling and other treatments are required to reduce the temperature of the aluminum pipe surface in order to process products that meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: to solve the problems existing in the prior art in the above background art, and provide an improved one that reduces the amount of friction, increases the flushing and lubrication of the cooling lubricating oil on the product surface, reduces the burrs on the product surface, and improves the product qualification rate.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a spinning mechanism, including a triangular chuck, and a spinning wheel is installed on each jaw of the triangular chuck. After the three spinning wheels are assembled, a forming area for spinning pipe-shaped products is formed;

[0007] The spinning wheel is divided into a main spinning wheel, a first auxiliary spinning wheel, and a second auxiliary spinning wheel. The outer peripheral wall of the spinning wheel is evenly divided into a smooth part and a working part,

[0008] The working part of the main spinning wheel is provided with a first main spinning protrusion, a second main spinning protrusion, and a third main spinning protrusion;

[0009] The working part of the first auxiliary spinning wheel is provided with a first auxiliary spinning protrusion and a second auxiliary spinning protrusion. The first auxiliary spinning protrusion cooperates with the first main spinning protrusion, and the second auxiliary spinning protrusion cooperates with the third main spinning protrusion;

[0010] On the working part of the spinning auxiliary wheel II, there are a third auxiliary spinning protrusion and a fourth auxiliary spinning protrusion. The third auxiliary spinning protrusion cooperates with the first main spinning protrusion, and the fourth auxiliary spinning protrusion cooperates with the second main spinning protrusion.

[0011] Further, the gap between adjacent main spinning protrusions is divided into a first gap and a second gap;

[0012] There is a gap between the first auxiliary spinning protrusion and the second auxiliary spinning protrusion, and this gap is the third gap;

[0013] There is a gap between the third auxiliary spinning protrusion and the fourth auxiliary spinning protrusion, and this gap is the fourth gap;

[0014] The length L1 of the first gap is equal to the length L2 of the third gap;

[0015] The sum L3 of the length of the first gap, the length of the second gap, and the length of the second main spinning protrusion is equal to the length L4 of the third gap. Further, the lengths of the working parts of the spinning main wheel, the spinning auxiliary wheel I, and the spinning auxiliary wheel II are all the same.

[0016] Further, the lengths of the smooth parts of the spinning main wheel, the spinning auxiliary wheel I, and the spinning auxiliary wheel II are all the same.

[0017] Further, it also includes a fixed shaft and an anti-slip bolt. The fixed shaft is installed on the split jaws of the triangular chuck. The spinning wheel is sleeved on the fixed shaft, and the spinning wheel is locked on the fixed shaft by the anti-slip bolt.

[0018] Further, bearings are installed at both ends of the spinning wheel.

[0019] Further, an anti-slip bolt is installed at one end of the spinning wheel away from the triangular chuck, and the anti-slip bolt is threadedly connected to the end face of the fixed shaft away from the triangular chuck.

[0020] Further, each split jaw of the triangular chuck is provided with a notch, and a threaded hole is provided on the end face of the notch. This threaded hole cooperates with the anti-slip bolt, and the spinning wheel is located within this notch.

[0021] The beneficial effects of the present utility model: The present utility model uses one spinning main wheel and is paired with two spinning auxiliary wheels for rolling. In this way, the rolling can reduce the friction amount by 1 / 3. In the same amount of time, it reduces the heat generation of the product, increases the flushing and lubrication of the cooling lubricating oil on the product surface, reduces the burrs on the product surface, and improves the qualified rate of the product. Brief Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 is a schematic structural view of the present utility model;

[0024] Figure 2 is an exploded view of the present utility model;

[0025] Figure 3 is a schematic structural view of the spinning main wheel of the present utility model;

[0026] Figure 4 is a schematic structural view of the spinning sub-wheel I of the present utility model;

[0027] Figure 5 is a schematic structural view of the spinning sub-wheel II of the present utility model;

[0028] In the figure: 1. Triangular chuck,

[0029] 2. Spinning main wheel, 21. First main spinning protrusion, 22. Second main spinning protrusion, 23. Third main spinning protrusion, 24. First gap, 25. Second gap,

[0030] 3. Spinning sub-wheel I, 31. First sub-spinning protrusion, 32. Second sub-spinning protrusion, 33. Third gap,

[0031] 4. Spinning sub-wheel II, 41. Third sub-spinning protrusion, 42. Fourth sub-spinning protrusion, 43. Fourth gap,

[0032] 5. Bearing, 6. Fixed shaft, 7. Anti-slip bolt, 8. Screw hole, 9. Notch, 10. Locking hole. Detailed implementation mode

[0033] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0034] As Figures 1 to 5 shown, a spinning mechanism is used to be installed on the spinning mechanism, including a triangular chuck 1. A spinning wheel is installed on each claw of the triangular chuck 1. After the three spinning wheels are assembled together, a forming area for spinning pipe products is formed;

[0035] The spinning wheels are divided into a spinning main wheel 2, a spinning sub-wheel I 3 and a spinning sub-wheel II 4. The outer peripheral walls of the spinning wheels are all divided into a smooth part and a working part,

[0036] As Figure 3 shown, the working part of the spinning main wheel 2 is provided with a first main spinning protrusion 21, a second main spinning protrusion 22 and a third main spinning protrusion 23;

[0037] As Figure 4As shown, on the working part of the spinning sub-wheel I 3, there are a first sub-spinning convex part 31 and a second sub-spinning convex part 32. The first sub-spinning convex part 31 cooperates with the first main spinning convex part 21, and the second sub-spinning convex part 32 cooperates with the third main spinning convex part 23;

[0038] As Figure 5 shown, on the working part of the spinning sub-wheel II 4, there are a third sub-spinning convex part 41 and a fourth sub-spinning convex part 42. The third sub-spinning convex part 41 cooperates with the first main spinning convex part 21, and the fourth sub-spinning convex part 42 cooperates with the second main spinning convex part 22.

[0039] In addition, the gaps between adjacent main spinning convex parts are divided into a first gap 24 and a second gap 25;

[0040] There is a gap between the first sub-spinning convex part 31 and the second sub-spinning convex part 32, and this gap is the third gap 33;

[0041] There is a gap between the third sub-spinning convex part 41 and the fourth sub-spinning convex part 42, and this gap is the fourth gap 43;

[0042] The length L1 of the first gap 24 is equal to the length L2 of the third gap 33;

[0043] The sum L3 of the length of the first gap 24, the length of the second gap 25, and the length of the second main spinning convex part 22 is equal to the length L4 of the third gap 33.

[0044] In addition, the lengths of the working parts of the spinning main wheel 2, the spinning sub-wheel I 3, and the spinning sub-wheel II 4 are all the same.

[0045] The lengths of the light parts of the spinning main wheel 2, the spinning sub-wheel I 3, and the spinning sub-wheel II 4 are all the same.

[0046] As Figures 1 to 2 shown, it also includes a fixed shaft 6 and an anti-slip bolt 7. The fixed shaft 6 is installed on the split claws of the triangular chuck 1. The spinning wheel is sleeved on the fixed shaft 6, and the spinning wheel is locked on the fixed shaft 6 by the anti-slip bolt 7. Bearings 5 are installed at both ends of the spinning wheel.

[0047] Each split claw of the triangular chuck 1 is provided with a notch 9. A screw hole 8 is provided on the end face of the notch. The screw hole 8 cooperates with the anti-slip bolt 7. The spinning wheel is located in the notch 9. In addition, a locking hole 10 is provided on any side wall of the split claw of the triangular chuck 1. The locking hole 10 runs through the screw hole 80 to lock the fixed shaft 6 and prevent the fixed shaft 6 from sliding out of the screw hole 8.

[0048] One end of the spinning wheel away from the triangular chuck 1 is installed with an anti-slip bolt 7, and the anti-slip bolt 7 is threadedly connected to the end face of the fixed shaft 6 away from the triangular chuck 1.

[0049] Working process:

[0050] Specifically, three spinning wheels are installed on the split jaws of the triangular chuck 1. After installation, the spinning wheels are arranged in a "pin" shape. The main spinning wheel 2 is placed in the upper middle position, the first auxiliary spinning wheel 3 is located at one corner below, and the second auxiliary spinning wheel is located at the other corner below;

[0051] Then, the pipe product is inserted into the forming area. At this time, the spinning wheels are in contact with the outer surface of the pipe product;

[0052] During the working process, the three spinning wheels simultaneously extrude the pipe product. At this time, the indentation marks between the first main spinning protrusion 21, the first auxiliary spinning protrusion 31, and the third auxiliary spinning protrusion 41 coincide;

[0053] The indentation marks between the third main spinning protrusion 23 and the second auxiliary spinning protrusion 32 coincide;

[0054] The indentation marks between the second main spinning protrusion 22 and the fourth auxiliary spinning protrusion 42 coincide;

[0055] Therefore, the amount of rolling friction is reduced. In the same time, the heat generated by the friction of the pipe product at high speed is also reduced, improving the qualification rate of the pipe product.

[0056] Taking the above ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A spinning mechanism, characterized in that: It includes a three-jaw chuck (1), and spinning wheels are installed on each jaw of the three-jaw chuck (1). After the three spinning wheels are combined, a forming area for spinning pipe products is formed; The spinning wheels are divided into a main spinning wheel (2), a first auxiliary spinning wheel (3), and a second auxiliary spinning wheel (4). The outer peripheral walls of the spinning wheels are all divided into a smooth part and a working part. On the working part of the main spinning wheel (2), there are a first main spinning protrusion (21), a second main spinning protrusion (22), and a third main spinning protrusion (23); On the working part of the first auxiliary spinning wheel (3), there are a first auxiliary spinning protrusion (31) and a second auxiliary spinning protrusion (32). The first auxiliary spinning protrusion (31) cooperates with the first main spinning protrusion (21), and the second auxiliary spinning protrusion (32) cooperates with the third main spinning protrusion (23); On the working part of the second auxiliary spinning wheel (4), there are a third auxiliary spinning protrusion (41) and a fourth auxiliary spinning protrusion (42). The third auxiliary spinning protrusion (41) cooperates with the first main spinning protrusion (21), and the fourth auxiliary spinning protrusion (42) cooperates with the second main spinning protrusion (22).

2. The spinning mechanism according to claim 1, wherein: The gaps between adjacent main spinning protrusions are divided into a first gap (24) and a second gap (25); There is a gap between the first auxiliary spinning protrusion (31) and the second auxiliary spinning protrusion (32), and this gap is the third gap (33); There is a gap between the third auxiliary spinning protrusion (41) and the fourth auxiliary spinning protrusion (42), and this gap is the fourth gap (43); The length L1 of the first gap (24) is equal to the length L2 of the third gap (33); The sum L3 of the length of the first gap (24), the length of the second gap (25), and the length of the second main spinning protrusion (22) is equal to the length L4 of the third gap (33).

3. A spinning mechanism according to claim 1, characterized in that: The lengths of the working parts of the main spinning wheel (2), the first auxiliary spinning wheel (3), and the second auxiliary spinning wheel (4) are the same.

4. A spinning mechanism according to claim 1, characterized in that: The lengths of the smooth parts of the main spinning wheel (2), the first auxiliary spinning wheel (3), and the second auxiliary spinning wheel (4) are the same.

5. A spinning mechanism according to claim 1, characterized in that: It also includes a fixed shaft (6) and an anti-slip bolt (7). The fixed shaft (6) is installed on the jaw of the three-jaw chuck (1). The spinning wheel is sleeved on the fixed shaft (6), and the spinning wheel is locked on the fixed shaft (6) by the anti-slip bolt (7).

6. The spinning mechanism according to claim 5, wherein: Bearings (5) are installed at both ends of the spinning wheel.

7. A spinning mechanism according to claim 5, characterized in that: An anti-slip bolt (7) is installed at the end of the spinning wheel away from the three-jaw chuck (1), and the anti-slip bolt (7) is threadedly connected to the end face of the fixed shaft (6) away from the three-jaw chuck (1).

8. A spinning mechanism according to claim 5, characterized in that: On each jaw of the three-jaw chuck (1), a notch (9) is opened. A screw hole (8) is opened on the end face of the notch, and the screw hole (8) cooperates with the anti-slip bolt (7). The spinning wheel is located in the notch (9).

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