Cylinder roundness deformation control device

Abstract

The utility model relates to a cylinder roundness deformation control device which comprises a hooping assembly, and the hooping assembly comprises a first arc-shaped plate, a second arc-shaped plate and a plurality of first bolts. One end of the first arc-shaped plate and one end of the second arc-shaped plate are in detachable butt joint to jointly form a closed or non-closed annular structure used for being hooped on the outer wall of a barrel, and the first arc-shaped plate and the second arc-shaped plate are each provided with a plurality of threaded holes in the thickness direction. And the plurality of first bolts are respectively in threaded connection with the corresponding threaded holes in the plurality of threaded holes of the first arc-shaped plate and the second arc-shaped plate. The cylinder roundness deformation control device is simple and convenient, the two arc-shaped plates are hooped on the outer wall of the cylinder, the first bolt is screwed to enable the tail of the first bolt to apply pressure to the outer wall of the cylinder, the cylinder can be effectively prevented from deforming outwards, and it is ensured that the roundness of the cylinder is effectively controlled.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of cylinder machining and manufacturing, and more particularly, to a cylinder roundness deformation control device. BACKGROUND

[0002] In the field of machining and manufacturing, cylinder is a common component structure, whether it is a small mechanical part or a large mechanical equipment assembly, and the roundness precision of the cylinder is strictly required. In the field of material forming, when the cylinder is prepared by processes such as casting, forging, welding, spinning, etc., roundness deformation is a common problem. In the field of equipment manufacturing, the roundness of the cylinder of key equipment in industries such as petrochemical, power, aerospace, etc. is directly related to the safe and stable operation and service life of the equipment. At present, there are still many problems in the control of cylinder roundness deformation. In the process of machining, factors such as cutting force, clamping force and cutting heat will cause the cylinder to produce roundness deformation. For example, when turning a thin-walled cylinder with a large length-diameter ratio, the thin-walled part is prone to deformation under the action of cutting force due to insufficient rigidity, so that the roundness of the machined cylinder is difficult to meet the design requirements. In the material forming stage, for example, in the casting process, uneven cooling speed of the metal liquid will cause inconsistent shrinkage of the cylinder, thereby causing roundness deviation; thermal stress in the welding process often causes deformation of the cylinder.

[0003] At present, the existing cylinder roundness deformation control device has obvious defects. For example, the traditional center support auxiliary support method makes the structure more complicated, and the weak rigid cylinder is prone to be disturbed by factors such as cutting heat and cutting vibration during the machining process, resulting in that the size precision, shape and position tolerance and surface roughness of the part do not meet the machining requirements. The method of clamping the part by using the chuck assisted with the open bushing is prone to deformation of the open bushing, and the chuck clamping force cannot be observed and adjusted in real time, so that the chuck clamping force is too large and will aggravate the deformation of the part. In the process of correcting the roundness of the part before assembly, thick-walled rings and screws are used, which not only complicate the installation process and require higher technical level of the operator, but also exist the situation that the open bushing cannot be installed for some special structure cylinders (for example, dumbbell-shaped thin-walled parts with thin neck parts in the middle section).

[0004] Therefore, how to provide a simple, convenient and effective cylinder roundness deformation control device is a problem to be solved by those skilled in the art. CONTENT OF THE INVENTION

[0005] Therefore, the present disclosure provides a cylinder roundness deformation control device, which is simple and convenient, and can effectively prevent the deformation of the cylinder outward by clamping two arc-shaped plates on the outer wall of the cylinder and tightening the first bolt to apply pressure to the outer wall of the cylinder with the tail of the first bolt, thereby ensuring effective control of the roundness of the cylinder.

[0006] To achieve the above object, the present disclosure provides a cylinder roundness deformation control device, comprising a hoop assembly, the hoop assembly comprising a first arc-shaped plate, a second arc-shaped plate and a plurality of first bolts, one end of the first arc-shaped plate and one end of the second arc-shaped plate being detachably butted to jointly form a closed or non-closed ring structure for hooping on the outer wall of a cylinder, and the first arc-shaped plate and the second arc-shaped plate each being provided with a plurality of threaded holes along the thickness direction, and each of the plurality of first bolts being threadedly connected in a corresponding threaded hole of the plurality of threaded holes of the first arc-shaped plate and the second arc-shaped plate.

[0007] Optionally, the one end of the first arc-shaped plate and the one end of the second arc-shaped plate are each integrally connected with a connecting lug, and the connecting lug of the first arc-shaped plate and the connecting lug of the second arc-shaped plate are detachably connected by a fastener.

[0008] Optionally, the fastener is a second bolt and a nut.

[0009] Optionally, the cylinder roundness deformation control device further comprises a range finder configured to measure the roundness change of the cylinder in real time while the hoop assembly is performing the hoop operation on the cylinder.

[0010] Optionally, the range finder is a plurality of.

[0011] Optionally, the range finder is a laser range finder or an infrared range finder.

[0012] Optionally, the cylinder roundness deformation control device further comprises a welding check ruler configured to measure the misalignment amount of two cylinders to be butt-jointed in the process of adjusting the roundness of the two cylinders to be butt-jointed by two hoop assemblies respectively.

[0013] Compared with the prior art, the cylinder roundness deformation control device provided by the present disclosure has at least the following beneficial effects:

[0014] (1) The cylinder roundness deformation control device of the present disclosure is simple to install, easy to operate and use, and can effectively prevent the deformation of the cylinder outward by hooping the first arc-shaped plate and the second arc-shaped plate on the outer wall of the cylinder and tightening the first bolts to make the tail of the first bolt apply pressure to the outer wall of the cylinder, so as to effectively adjust and control the roundness of the cylinder, greatly improve the precision and quality of the cylinder, and reduce the dependence on the technical level of the operator.

[0015] (2) The cylinder roundness deformation control device of the present disclosure further comprises a range finder, so that the outer diameter of the cylinder can be measured in real time by the range finder while the hoop assembly is operating on the cylinder, so that the roundness change of the cylinder is measured in real time, and then the pressing force applied by the hoop assembly to the cylinder can be adjusted according to the real-time change of the cylinder roundness, avoiding the occurrence of the undesirable cylinder deformation caused by excessive pressing force.

[0016] (3) The cylinder roundness deformation control device of the present disclosure further comprises a welding gauge, so that the misalignment amount of the two cylinders to be connected can be measured by the welding gauge during the process of adjusting the roundness of the two cylinders to be connected by the two hoop assemblies, thereby achieving accurate monitoring of the misalignment amount, and then the pressing force applied by each hoop assembly to the corresponding cylinder can be adjusted in time according to the size of the misalignment amount, ensuring that the connecting edges of the two cylinders can be accurately aligned, thereby providing a good foundation for the subsequent connection process such as welding, and ensuring the connection quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present disclosure, the embodiments of the present disclosure will be further explained and described in accordance with the following drawings, which are only used to more conveniently and specifically describe the embodiments of the present disclosure and are not a limitation on the present disclosure. In the drawings:

[0018] Figure 1 is a structure diagram of the hoop assembly of the cylinder roundness deformation control device of one embodiment of the present disclosure;

[0019] Figure 2 is a use state diagram of the hoop assembly of the cylinder roundness deformation control device of one embodiment of the present disclosure when used for connecting two cylinders;

[0020] Figure 3 is a use state diagram of the range finder of the cylinder roundness deformation control device of one embodiment of the present disclosure when used for measuring the outer diameter of the cylinder; and

[0021] Figure 4 is a use state diagram of the welding gauge of the cylinder roundness deformation control device of one embodiment of the present disclosure when used for connecting two cylinders.

[0022] In the drawings: 1, first arc-shaped plate; 2, second arc-shaped plate; 3, first bolt; 4, range finder; 5, welding gauge; 6, first cylinder; 7, second cylinder; 8, misalignment amount; 9, second bolt; 10, nut. DETAILED DESCRIPTION

[0023] In order to make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the specific embodiments of the present disclosure will be described clearly and completely below with reference to the drawings. These embodiments are provided only by way of example. Obviously, the described embodiments are part of, but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present disclosure.

[0024] In the description of the present disclosure, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0025] In the description of the present disclosure, unless explicitly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood broadly, for example, can be fixedly connected, can also be detachably connected; can be mechanically connected; can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0026] One embodiment of the present disclosure provides a barrel roundness deformation control device. The barrel roundness deformation control device comprises a hoop round assembly. Referring to Figure 1 , the hoop round assembly comprises a first arc-shaped plate 1, a second arc-shaped plate 2 and a plurality of first bolts 3, one end of the first arc-shaped plate 1 and one end of the second arc-shaped plate 2 are detachably butted to jointly form a closed or non-closed annular structure for hooping on the outer wall of the barrel, and the first arc-shaped plate 1 and the second arc-shaped plate 2 are each provided with a plurality of threaded holes in the thickness direction, and the plurality of first bolts 3 are each threadedly connected in the corresponding threaded hole of the plurality of threaded holes of the first arc-shaped plate 1 and the second arc-shaped plate 2. As Figure 2As shown, when using two hooping components to perform hooping operations on two cylinders to be joined (e.g., the first cylinder 6 and the second cylinder 7), by hooping the first arc plate 1 and the second arc plate 2 of each hooping component onto the outer wall of the corresponding cylinder and tightening each first bolt 3 to apply pressure to the outer wall of the cylinder with the tail of the first bolt 3 (i.e., performing hooping operations on the cylinder), the outward deformation of the cylinder can be effectively prevented, thereby achieving effective adjustment and control of the roundness of the cylinder.

[0027] In a preferred embodiment of this disclosure, one end of the first arc-shaped plate 1 and one end of the second arc-shaped plate 2 are each integrally connected with a connecting lug, and the connecting lugs of the first arc-shaped plate 1 and the second arc-shaped plate 2 are detachably connected by fasteners. Preferably, the fasteners are a second bolt 9 and a nut 10, such as... Figure 1 As shown.

[0028] In a preferred embodiment of this disclosure, such as Figure 3 As shown, the cylinder roundness deformation control device also includes a rangefinder 4, which is configured to measure the outer diameter of the cylinder in real time while the rounding assembly performs the rounding operation on the cylinder (e.g., the first cylinder 6), thereby measuring the roundness change of the cylinder in real time. In this way, the clamping force applied to the cylinder by the rounding assembly can be adjusted according to the real-time change of the cylinder roundness, avoiding the occurrence of undesirable cylinder deformation caused by excessive clamping force.

[0029] In a preferred embodiment of this disclosure, there are multiple rangefinders 4, for example, three rangefinders 4 can be arranged in one cylinder (e.g. Figure 3 (As shown), but not limited to. Depending on the size of the cylinder, four, five, or more rangefinders 4 can be evenly arranged on the outer wall of the cylinder. The real-time change in the roundness of the cylinder is monitored by observing the outer diameter values ​​of the cylinder measured by multiple rangefinders 4, thereby adjusting the clamping force applied to the cylinder by the hoop assembly based on the real-time change in the roundness of the cylinder. Specifically, the rangefinders 4 can measure the outer diameter of the cylinder using conventional methods in the art. Preferably, the rangefinders 4 are commercially available laser rangefinders or infrared rangefinders in the art.

[0030] In a preferred embodiment of this disclosure, such as Figure 4As shown, the barrel roundness deformation control device further comprises a welding inspection ruler 5 configured to measure the misalignment amount (e.g., misalignment amount 8) of the two barrels to be butt-jointed (e.g., first barrel 6 and second barrel 7) during the process of adjusting the roundness of the two barrels to be butt-jointed by the two hoop round assemblies respectively, so as to realize accurate monitoring of the misalignment amount, and then the pressing force applied by each hoop round assembly to the corresponding barrel can be adjusted in time according to the size of the misalignment amount, so as to ensure that the butt-joint edges of the two barrels can be accurately aligned, thereby providing a good foundation for the subsequent connection process such as welding, and ensuring the butt-joint quality of the barrel. Specifically, the welding inspection ruler 5 is a commercially available welding inspection ruler in the art, and the misalignment amount of the two barrels to be butt-jointed is measured in a conventional manner in the art.

[0031] In the process of adjusting and controlling the roundness deformation of two cylinders to be connected by using the cylinder roundness deformation control device of one embodiment of the present disclosure, first, the hoop round assemblies of the two cylinder roundness deformation control devices are respectively installed on the end portions of the first cylinder 6 and the second cylinder 7 to be connected, specifically, the first arc-shaped plate 1 and the second arc-shaped plate 2 of each hoop round assembly are hooped on the outer wall of the end portion of the corresponding cylinder to fit the outer wall of the cylinder as much as possible, if necessary, the compression and relaxation of the first arc-shaped plate 1 and the second arc-shaped plate 2 to the outer wall of the end portion of the cylinder are adjusted by using the second bolt 9 and the nut 10 (for example, by manually or mechanically tightening the second bolt 9 and the nut 10), for example, if the arc-shaped plate fits the outer wall of the end portion of the cylinder loosely, the fit of the arc-shaped plate to the outer wall of the end portion of the cylinder can be tightened a little by tightening the second bolt 9, if the arc-shaped plate fits the outer wall of the end portion of the cylinder too tightly, the fit of the arc-shaped plate to the outer wall of the end portion of the cylinder can be loosened a little by loosening the second bolt 9 to leave space for subsequent adjustment of the roundness of the end portion of the cylinder by using the first bolt 3; then, each first bolt 3 is tightened (for example, by manually or mechanically tightening the first bolt 3) to apply pressure to the outer wall of the corresponding end portion of the cylinder by the tail of the first bolt 3 to preliminarily correct the larger outward deformation of the end portion of the cylinder, that is, to preliminarily hoop the end portion of the cylinder, and in the process of the preliminary hooping, the outer diameter of the corresponding end portion of the cylinder is measured in real time by using the plurality of distance meters 4 arranged on the outer wall of the end portion of the cylinder, so that the roundness change of the end portion of the cylinder is measured in real time, so that the compression force applied to the cylinder by the hoop round assembly can be adjusted according to the real-time change of the roundness of the end portion of the cylinder to further hoop the end portion of the cylinder, so that the end portion of the cylinder is kept as circular as possible; then, the end portions of the first cylinder 6 and the second cylinder 7 to be connected are brought close to each other, and the amount of misalignment 8 of the end portions of the first cylinder 6 and the second cylinder 7 to be connected is measured by using the welding inspection ruler 5, the measurement data is recorded and the misalignment direction is determined; then, according to the misalignment, the corresponding first bolt 3 is tightened to finely adjust the roundness of the corresponding end portion of the cylinder, at this time, for the side with larger misalignment, the compression force to the end portion of the corresponding cylinder can be appropriately increased to gradually align the connected edges of the end portions of the first cylinder 6 and the second cylinder 7, and in the process of the adjustment, the welding inspection ruler 5 is continuously used to monitor the generation and change of the amount of misalignment 8, so that the corresponding first bolt 3 is tightened in real time to finely adjust the roundness of the corresponding end portion of the cylinder, to ensure that the amount of misalignment 8 is controlled within the allowable range (for example, the manufacturing standard range of the pressure vessel).

[0032] It should be noted that although the above only gives the use mode of the barrel roundness deformation control device of the present disclosure in the barrel butt joint link, those skilled in the art should understand that in addition to the barrel butt joint link, the barrel roundness deformation control device of the present disclosure can also be applied to the barrel roundness deformation adjustment and control in each link of barrel processing, forming and assembly, etc. in a similar use mode, and can also effectively control the roundness deformation in these links, improve the precision and quality of the barrel, reduce the production cost, improve the production efficiency, at the same time reduce the dependence on the technical level of the operator, so as to be suitable for large-scale industrial production.

[0033] It should be understood that the drawings in the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures can refer to the general design. The devices and / or structures in each embodiment provided in the present disclosure can be combined, modified and / or changed to form new technical solutions. These technical solutions should also be included in the scope of protection claimed by the present disclosure without creative labor.

[0034] It should be understood that the specific examples provided in the embodiments provided herein are only for detailed description of the embodiments of the present disclosure and not for limitation of the present disclosure. The embodiments in the present disclosure can be practiced without these specific examples. In some embodiments, the structures and / or technologies known to those skilled in the art are not shown in detail, so as not to obscure the understanding of the present disclosure.

[0035] Although the preferred embodiments of the present disclosure have been shown and described herein, it will be readily apparent to those skilled in the art that these embodiments are provided only by way of example. Those skilled in the art will think of various changes, modifications and alternatives without departing from the present disclosure. It should be understood that various alternatives described herein for the embodiments of the present disclosure are optionally used to implement the present disclosure. It is intended to limit the scope of the present disclosure by the appended claims and to cover the devices, structures and their equivalents within the scope of these claims.

Claims

1. A device for controlling the roundness deformation of a cylindrical body, characterized in that, The system includes a hoop assembly, which comprises a first arc-shaped plate (1), a second arc-shaped plate (2), and a plurality of first bolts (3). One end of the first arc-shaped plate (1) and one end of the second arc-shaped plate (2) are detachably connected to form a closed or non-closed annular structure for clamping onto the outer wall of the cylinder. The first arc plate (1) and the second arc plate (2) each have multiple threaded holes along the thickness direction, and the multiple first bolts (3) are each threadedly connected to the corresponding threaded holes in the multiple threaded holes of the first arc plate (1) and the second arc plate (2).

2. The cylindrical roundness deformation control device according to claim 1, characterized in that, One end of the first arc-shaped plate (1) and one end of the second arc-shaped plate (2) are each integrally connected with a connecting ear, and the connecting ear of the first arc-shaped plate (1) and the connecting ear of the second arc-shaped plate (2) are detachably connected by fasteners.

3. The cylindrical roundness deformation control device according to claim 2, characterized in that, The fasteners are a second bolt (9) and a nut (10).

4. The cylindrical roundness deformation control device according to claim 1, characterized in that, It also includes a rangefinder (4), which is configured to measure the roundness change of the cylinder in real time while the rounding assembly performs the rounding operation on the cylinder.

5. The cylindrical roundness deformation control device according to claim 4, characterized in that, There are multiple rangefinders (4).

6. The cylindrical roundness deformation control device according to claim 4, characterized in that, The rangefinder (4) is a laser rangefinder or an infrared rangefinder.

7. The cylindrical roundness deformation control device according to claim 1, characterized in that, It also includes a welding inspection ruler (5), which is configured to measure the misalignment of the two cylinders to be joined during the process of adjusting the roundness of the two cylinders to be joined using the two hoop rounding assemblies respectively.

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