Cylindrical workpiece welding and fixing tool

Abstract

A cylindrical workpiece welding fixing tool comprises a top fixing ring, a fixing cylinder and a base, the fixing cylinder is placed on the base, the top of the fixing cylinder is integrally connected with the top fixing ring, threaded holes are evenly distributed in the top fixing ring, bolts are connected into the threaded holes in a threaded mode, and the top of the top fixing ring is connected with a pressing plate through bolts. The bolt is in threaded connection with a nut above the pressing plate, threaded cylinders are evenly distributed and connected to the peripheral wall of the fixed cylinder, threads are arranged on the inner walls of the threaded cylinders, locking bolts are connected into the threaded cylinders through the threads, and the ends, facing the interior of the fixed cylinder, of the locking bolts penetrate through the fixed cylinder. The round barrel welding tool is simple in structure and easy and convenient to operate, round barrels with slightly different sizes can be locked by adjusting the locking bolts, the application range is wide, after the round barrels are welded, the locking bolts are unscrewed, fixation of the round barrels by the tool is relieved, then the top fixing ring and the fixing barrel body are lifted through the lifting device, and the round barrels welded inside are taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a welding and fixing tooling for cylindrical workpieces. Background Technique

[0002] Cylindrical workpieces are widely used in fields such as ships, aviation, and aerospace. The forming quality and welding consistency of the welds of cylindrical workpieces directly affect the working performance of the products. To improve their quality and consistency problems, tooling is usually designed to ensure their external dimensions. Traditional welding tooling is generally machined according to its external dimensions and does not have adjustability. Once the external dimensions are slightly changed, the tooling can only be redesigned. After the circular cylinder is welded, it is not convenient to take it out of the tooling. Summary of the Invention

[0003] In order to solve the above problems, the utility model provides a welding and fixing tooling for cylindrical workpieces.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A welding and fixing tooling for cylindrical workpieces includes a top fixing ring, a fixing cylinder, and a base. The fixing cylinder is placed on the base, and the top of the fixing cylinder is integrally connected to the top fixing ring. Threaded holes are evenly arranged on the top fixing ring, and bolts are threadedly connected in the threaded holes. The top of the top fixing ring is connected to a pressing plate through bolts, and nuts are threadedly connected above the pressing plate on the bolts. Threaded cylinders are evenly connected to the peripheral wall of the fixing cylinder. Threads are provided on the inner wall of the threaded cylinder, and a locking bolt is threadedly connected in the threaded cylinder. The end of the locking bolt facing the inside of the fixing cylinder passes through the fixing cylinder.

[0006] A backing plate is connected to the base through a support plate.

[0007] The backing plate is an annular plate, and the inner diameter of the backing plate is smaller than the inner diameter of the fixing cylinder.

[0008] One end of the locking bolt facing the fixing cylinder is connected with a resisting plate inside the fixing cylinder.

[0009] The pressing plate is a wedge-shaped plate, and the thickness of the end of the pressing plate connected to the bolt is greater than the thickness of the end of the pressing plate away from the bolt.

[0010] Lifting lugs are symmetrically arranged on both sides of the top of the top fixing ring.

[0011] The beneficial effects of the utility model are as follows: The structure of the utility model is simple and the operation is convenient. Even if the dimensions of the circular cylinder are slightly different, it can be locked by adjusting the locking bolts, and the applicable range is wide. After the circular cylinder is welded, loosen the locking bolts, release the fixation of the tooling on the circular cylinder, and then use a lifting device to lift the top fixing ring and the fixing cylinder to take out the circular cylinder welded inside. Brief Description of the Drawings

[0012] Figure 1 This is the structural schematic diagram of the present utility model.

[0013] Figure 2 This is the structural schematic diagram of the base of the present utility model.

[0014] Figure 3 This is the structural schematic diagram of the locking bolt part of the present utility model.

[0015] Wherein: 1-top fixing ring; 2-pressure plate; 3-nut; 4-bolt; 5-fixing cylinder; 6-threaded cylinder; 7-backing plate; 8-base; 9-supporting plate; 10-locking bolt; 11-abutment plate; 12-lifting lug. Specific embodiments

[0016] A welding and fixing tooling for cylindrical workpieces includes a top fixing ring 1, a fixing cylinder 5 and a base 8. The fixing cylinder 5 is placed on the base 8, and the top of the fixing cylinder 5 is integrally connected to the top fixing ring 1. Threaded holes are evenly arranged on the top fixing ring 1, and bolts 4 are threadedly connected in the threaded holes. The top of the top fixing ring 1 is connected to a pressure plate 2 through bolts 4, and nuts 3 are threadedly connected above the pressure plate 2 on the bolts 4. Threaded cylinders 6 are evenly connected to the peripheral wall of the fixing cylinder 5. The inner wall of the threaded cylinder 6 is provided with threads, and a locking bolt 10 is threadedly connected in the threaded cylinder 6. The end of the locking bolt 10 facing the inside of the fixing cylinder 5 passes through the fixing cylinder 5.

[0017] A backing plate 7 is connected to the base 8 through a supporting plate 9, and the cylindrical workpiece to be welded is lowered from above the top fixing ring 1 and the fixing cylinder 5 onto the backing plate 7.

[0018] The backing plate 7 is an annular plate, and the inner diameter of the backing plate 7 is smaller than the inner diameter of the fixing cylinder 5 to ensure that the cylindrical workpiece falls on the backing plate 7.

[0019] One end of the locking bolt 10 facing the fixing cylinder 5 is connected with an abutment plate 11 inside the fixing cylinder 5, and the abutment plate 11 abuts against the cylindrical workpiece to fix it.

[0020] The pressure plate 2 is a wedge-shaped plate. The thickness of the end of the pressure plate 2 connected to the bolt 4 is greater than the thickness of the end of the pressure plate 2 away from the bolt 4. After the pressure plate 2 rotates, the end of the pressure plate 2 away from the bolt 4 presses on the top of the cylindrical workpiece. The wedge shape facilitates pressing the cylindrical workpiece tightly after the pressure plate 2 rotates a certain angle.

[0021] Lifting lugs 12 are symmetrically arranged on both sides of the top of the top fixing ring 1. After the cylindrical workpiece is welded, the top fixing ring 1 and the fixing cylinder 5 are lifted by a lifting device, and then the cylindrical workpiece is taken off.

[0022] During application, the workpiece to be welded is lowered from above the top fixing ring 1 onto the backing plate 7. The cylindrical workpiece is held against the inner and outer peripheral walls of the fixing cylinder 5 by the abutting plate 11 at the top end of the locking bolt 10. Then, the top of the cylindrical workpiece is pressed tightly by the pressing plate 2 to firmly fix the cylindrical workpiece. Welding is performed on the weld seam from inside the workpiece. After welding is completed, it is connected to the lifting lug 12 through a lifting device, and the top fixing ring 1 and the fixing cylinder 5 are lifted to remove the cylindrical workpiece from the backing plate 7.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A cylindrical workpiece welding fixture, characterized in that: The invention comprises a top fixing ring (1), a fixing cylinder (5) and a base (8), wherein the fixing cylinder (5) is placed on the base (8), the top of the fixing cylinder (5) is integrally connected to the top fixing ring (1), threaded holes are evenly arranged on the top fixing ring (1), bolts (4) are threadedly connected in the threaded holes, the top of the top fixing ring (1) is connected to a pressure plate (2) through the bolts (4), the bolts (4) are threadedly connected to a nut (3) above the pressure plate (2), threaded cylinders (6) are evenly arranged on the peripheral wall of the fixing cylinder (5), threads are arranged on the inner wall of the threaded cylinder (6), a locking bolt (10) is threadedly connected in the threaded cylinder (6), and the end of the locking bolt (10) facing the inside of the fixing cylinder (5) passes through the fixing cylinder (5).

2. The cylindrical workpiece welding fixture according to claim 1 is characterized in that: The base (8) is connected to a pad (7) via a support plate (9).

3. The cylindrical workpiece welding fixture according to claim 2 is characterized in that: The pad (7) is an annular plate, and the inner diameter of the pad (7) is smaller than the inner diameter of the fixed cylinder (5).

4. The cylindrical workpiece welding fixture according to claim 1, characterized in that: One end of the locking bolt (10) facing the fixed cylinder (5) is connected to a stop plate (11) inside the fixed cylinder (5).

5. The cylindrical workpiece welding fixture according to claim 1, characterized in that: The pressing plate (2) is a wedge-shaped plate, and the thickness of the end of the pressing plate (2) connected to the bolt (4) is greater than the thickness of the end of the pressing plate (2) away from the bolt (4).

6. The cylindrical workpiece welding fixture according to claim 1, characterized in that: Lifting ears (12) are symmetrically arranged on both sides of the top of the top fixing ring (1).

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