Cylinder machining anti-deformation device

Abstract

The utility model discloses a cylinder processing anti-deformation device which comprises a fixing ring, a plurality of adjusting holes are distributed in the fixing ring in the circumferential direction, the adjusting holes extend in the radial direction of the fixing ring and penetrate through the side wall of the fixing ring, and internal threads are arranged on the inner walls of the adjusting holes. The supporting ring is arranged on the radial outer side of the fixing ring in a sleeving mode, an adjusting notch is formed in the supporting ring, limiting cylinders are arranged on the inner circumferential wall of the supporting ring, and the limiting cylinders and the adjusting holes are arranged in a one-to-one correspondence mode; and the adjusting bolt is in threaded connection with the adjusting hole, the first end of the adjusting bolt extends into the limiting cylinder, and the first end of the adjusting bolt can transversely move in the limiting cylinder. The anti-deformation device for cylinder machining is arranged in a cylinder to support the cylinder when the cylinder is machined, and therefore the effect of preventing the cylinder from deforming in the machining process is achieved. And as the support ring is annular, the contact area between the support ring and the inner wall of the cylinder is larger, the stress of the cylinder is more uniform, and the cylinder pressing precision can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, and more specifically, to a cylinder processing anti-deformation device. Background Art

[0002] Some cylindrical parts are usually formed by rolling and then welding metal sheets. For example, large-sized pipes need to be formed in this way. Direct welding after rolling the sheet can easily cause the sheet to deform and cannot meet the precision requirements of the cylinder.

[0003] In order to prevent deformation during welding, in the prior art, a support device is provided inside the cylinder to provide support during welding of the cylinder, so as to avoid large deformation of the cylinder during welding. The existing support device mostly uses multiple support rods to support the inside of the cylinder, for example, a cross support frame can support the cylinder, but since there are only four support points, the support effect is not ideal, especially when the cylinder diameter is large or the plate forming the cylinder is relatively thin, the traditional cross support frame cannot effectively prevent the cylinder deformation caused by welding. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model innovatively provides a cylinder processing anti-deformation device, which can avoid the technical problem of deformation of the cylinder during welding or other processing.

[0005] In order to achieve the above technical purpose, the utility model discloses a cylinder processing anti-deformation device, comprising:

[0006] A fixing ring, the fixing ring is a circular ring structure, a plurality of adjustment holes are distributed along the circumferential direction of the fixing ring, the adjustment holes extend along the radial direction of the fixing ring and penetrate the side wall of the fixing ring, and the inner wall of the adjustment hole is provided with an internal thread;

[0007] A support ring, wherein the support ring is sleeved on the radially outer side of the fixing ring, an adjustment notch is formed on the support ring, and a limiting cylinder is arranged on the inner circumferential wall of the support ring, and the limiting cylinder is arranged in a one-to-one correspondence with the adjustment hole;

[0008] An adjusting bolt, wherein the adjusting bolt is threadedly connected to the adjusting hole, and a first end of the adjusting bolt extends into the limiting cylinder.

[0009] The first end of the adjusting bolt can move laterally in the limiting cylinder.

[0010] Furthermore, a rib plate is provided on the inner peripheral wall of the support ring, each of the limiting cylinders is connected to at least one of the rib plates, and the rib plates are fixedly connected to the support ring and the limiting cylinder.

[0011] Furthermore, the ribs are arranged along the circumference of the support ring, one rib is arranged on each side of each limiting cylinder, and a gap is formed between two adjacent ribs.

[0012] Furthermore, the end surface of the first end of the adjusting bolt is a convex hemispherical surface.

[0013] Furthermore, the inner cavity cross-section of the limiting cylinder is circular, and the inner diameter of the limiting cylinder is larger than the outer diameter of the adjusting bolt.

[0014] Furthermore, the inner cavity of the limiting cylinder is in the shape of an elongated strip, and the inner cavity of the limiting cylinder extends along the circumference of the supporting ring.

[0015] Furthermore, the support ring is made of an elastic metal material, and the support ring enlarges the adjustment gap under the thrust of the adjustment bolt.

[0016] The beneficial effects of the utility model are:

[0017] The cylinder processing anti-deformation device provided by the utility model is arranged inside the cylinder to provide support for the cylinder when processing the cylinder, thereby preventing the cylinder from deforming during processing. In addition, since the support ring is annular, the contact area with the inner wall of the cylinder is larger, the force on the cylinder is more uniform, and the cylinder pressing accuracy can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing the structure of a cylinder processing anti-deformation device according to an embodiment of the utility model is shown;

[0019] Figure 2 The schematic diagram of the structure of the cylinder processing anti-deformation device of the utility model embodiment is shown in the cylinder.

[0020] In the figure,

[0021] 1. Fixing ring; 2. Support ring; 21. Adjusting notch; 22. Limiting cylinder; 23. Rib plate; 3. Adjusting bolt; 4. Cylinder. DETAILED DESCRIPTION

[0022] The cylinder processing anti-deformation device provided by the utility model is explained and illustrated in detail below in conjunction with the drawings of the specification.

[0023] The cylinder processing anti-deformation device provided by the utility model is arranged inside the cylinder to provide support for the cylinder when processing the cylinder, thereby preventing the cylinder from deforming during processing. And because the support ring is annular, the contact area with the inner wall of the cylinder is larger, the force on the cylinder is more uniform, and the cylinder precision can be further improved. The utility model is described in detail in combination with specific embodiments below:

[0024] The utility model provides a cylinder processing anti-deformation device, such as Figure 1 As shown, during the cylinder processing, support is provided inside the cylinder to prevent the cylinder from being deformed during the processing, for example, it can be used for the welding, hole opening and other processing of the cylinder. In one embodiment, the cylinder processing anti-deformation device of the present application includes: a fixing ring 1 and a support ring 2, the support ring 2 is sleeved on the outside of the fixing ring 1, and an adjusting bolt 3 is provided on the fixing ring 1. The support ring 2 is supported by the adjusting bolt 3, and the radial size of the support ring 2 is adjusted so that the support ring 2 can provide support to the inner wall of the cylinder.

[0025] In one embodiment, the fixing ring 1 is a circular ring structure, and a plurality of adjustment holes are distributed along the circumferential direction on the fixing ring 1. The adjustment holes extend along the radial direction of the fixing ring 1 and penetrate the side wall of the fixing ring 1, and the inner wall of the adjustment hole is provided with an internal thread. Optionally, the plurality of adjustment holes are evenly distributed along the circumference of the fixing ring 1. The first end of the adjustment bolt 3 passes through the adjustment hole from the inner side of the fixing ring 1, and the adjustment bolt 3 is threadedly connected to the adjustment hole. By rotating the adjustment bolt 3, the length of the first end of the adjustment bolt 3 can be changed.

[0026] An adjustment notch 21 is formed on the support ring 2, and the size of the adjustment notch 21 is adjustable. A limiting cylinder 22 is arranged on the inner peripheral wall of the support ring 2, and the limiting cylinder 22 is arranged one-to-one with the adjustment hole. The first end of the adjustment bolt 3 extends into the limiting cylinder 22 and abuts against the bottom wall of the limiting cylinder 22. The first end of the adjustment bolt 3 provides thrust to the support ring 2 through the limiting cylinder 22. Optionally, the support ring 2 is made of an elastic metal material. In a natural state, the support ring 2 is located outside the fixing ring 1, and can ensure that the first end of the adjustment bolt 3 is located in the limiting cylinder 22. The support ring 2 enlarges the adjustment notch 21 under the thrust of the adjustment bolt 3, that is, the radial size of the support ring 2 increases. When the thrust of the adjustment bolt 3 is removed, the support ring 2 can be restored to a natural state under the action of the elastic force. When the adjusting bolt 3 extends toward the outside of the fixing ring 1, it can push the supporting ring 2 to move radially outward to enlarge the adjusting gap 21. When the adjusting bolt 3 shrinks toward the inside of the fixing ring 1, the supporting ring 2 can shrink under the action of elastic force to reduce the adjusting gap 21.

[0027] The inner cavity size of the limit tube 22 is larger than the outer diameter size of the adjusting bolt 3, so that the first end of the adjusting bolt 3 can undergo a certain amount of lateral displacement in the limit tube 22, thereby ensuring that when the support ring 2 is deformed by the thrust, the limit tube 22 can also undergo a certain amount of displacement, thereby avoiding affecting the deformation of the support ring 2.

[0028] Optionally, the inner cavity of the limiting cylinder 22 has a circular cross section, and the inner diameter of the limiting cylinder 22 is larger than the outer diameter of the adjusting bolt 3, and the first end of the adjusting bolt 3 can move laterally in the limiting cylinder 22, that is, a certain amount of movement occurs in the circumferential direction of the support ring 2. Alternatively, the inner cavity of the limiting cylinder 22 is in the shape of an elongated strip, and the inner cavity of the limiting cylinder 22 extends along the circumferential direction of the support ring 2, for example, it can be set to an elliptical, rectangular or similar hole of any shape, which can ensure that there is enough space between the limiting cylinder 22 and the adjusting bolt 3 for relative displacement when the support ring 2 is deformed.

[0029] In some embodiments, the end face of the first end of the adjusting bolt 3 is a convex hemispherical surface, which can reduce the contact area between the first end of the adjusting bolt 3 and the inner wall of the limiting cylinder 22, thereby reducing the friction force generated when the limiting cylinder 22 and the adjusting bolt 3 move relative to each other.

[0030] In some embodiments, a rib plate 23 is provided on the inner circumferential wall of the support ring 2, and each limiting cylinder 22 is connected to at least one rib plate 23. The rib plate 23 is provided perpendicular to the inner wall of the support ring 2 and is fixedly connected to the support ring 2 and the limiting cylinder 22. The provision of the rib plate 23 can improve the overall strength of the support ring 2 on the one hand, and can also improve the reliability of the connection between the limiting cylinder 22 and the support ring 2 on the other hand. Optionally, the rib plate 23 is provided along the circumference of the support ring 2, and a rib plate 23 is provided on each side of each limiting cylinder 22. The multiple rib plates 23 are independent of each other, and there is a gap between two adjacent rib plates 23 to avoid interference between the rib plates 23 when the support ring 2 is deformed.

[0031] The use method of the cylinder processing anti-deformation device provided by the utility model during cylinder welding includes:

[0032] like Figure 2 As shown, the adjusting bolt 3 is adjusted according to the diameter of the cylinder so that the diameter of the support ring 2 is smaller than the inner diameter of the cylinder 4. After the plate of the cylinder 4 is rolled and tack welded in advance, the product is fine-tuned, and then the cylinder processing anti-deformation device is placed in the cylinder 4, and then the adjusting nut is turned to increase the radial size of the support ring 2 and abut against the inner wall of the cylinder 4.

[0033] Optionally, it is necessary to ensure that the support ring 2 fits on the inner wall of the cylinder 4, that is, to ensure that the axis of the support ring 2 coincides with or is parallel to the axis of the cylinder 4. Whether the installation is in place can be determined by measuring the verticality of the cylinder processing anti-deformation device and the cylinder 4.

[0034] When adjusting the adjusting bolts 3 , they are adjusted in a cross-symmetrical order, that is, after adjusting the first adjusting bolt 3 , the bolt opposite to it is adjusted to ensure that the support ring 2 is evenly stressed.

[0035] Optionally, a plurality of cylinder processing anti-deformation devices may be provided according to the length of the cylinder 4. For example, the number may be determined by providing one device at intervals of 500 mm.

[0036] After the installation of the cylinder processing anti-deformation device is completed, the cylinder 4 is welded. Optionally, the welding is performed from the middle to both sides. After the welding is completed, the cylinder processing anti-deformation device can be removed.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder processing anti-deformation device, characterized in that: include: A fixing ring, the fixing ring is a circular ring structure, a plurality of adjustment holes are distributed along the circumferential direction of the fixing ring, the adjustment holes extend along the radial direction of the fixing ring and penetrate the side wall of the fixing ring, and the inner wall of the adjustment hole is provided with an internal thread; A support ring, wherein the support ring is sleeved on the radially outer side of the fixing ring, an adjustment notch is formed on the support ring, and a limiting cylinder is arranged on the inner circumferential wall of the support ring, and the limiting cylinder is arranged in a one-to-one correspondence with the adjustment hole; An adjusting bolt, wherein the adjusting bolt is threadedly connected to the adjusting hole, and a first end of the adjusting bolt extends into the limiting cylinder. The first end of the adjusting bolt can move laterally in the limiting cylinder.

2. The cylinder processing anti-deformation device according to claim 1, characterized in that: A rib plate is arranged on the inner peripheral wall of the support ring, each of the limiting cylinders is connected to at least one of the rib plates, and the rib plates are fixedly connected to the support ring and the limiting cylinder.

3. The cylinder processing anti-deformation device according to claim 2, characterized in that: The ribs are arranged along the circumference of the support ring, one rib is arranged on each side of each limiting cylinder, and a gap is formed between two adjacent ribs.

4. The cylinder processing anti-deformation device according to claim 3, characterized in that: The end surface of the first end of the adjusting bolt is a convex hemispherical surface.

5. The cylinder processing anti-deformation device according to claim 4, characterized in that: The inner cavity cross section of the limiting cylinder is circular, and the inner diameter of the limiting cylinder is larger than the outer diameter of the adjusting bolt.

6. The cylinder processing anti-deformation device according to claim 4, characterized in that: The inner cavity of the limiting cylinder is in the shape of an elongated strip, and the inner cavity of the limiting cylinder extends along the circumference of the supporting ring.

7. The cylinder processing anti-deformation device according to any one of claims 1 to 6, characterized in that: The support ring is made of an elastic metal material, and the support ring enlarges the adjustment gap under the thrust of the adjustment bolt.

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