Device for cold sizing of circular shell

Abstract

The utility model relates to the technical field of mechanical correction equipment, in particular to a device for cold correction of a circular shell, which comprises a base, a fixed column is fixedly mounted in the middle of the base, and a cylindrical cushion block and a conical sleeve which are coaxial with the fixed column are nested on the fixed column from bottom to top. The upper surface of the cushion block is provided with a plurality of sliding grooves annularly distributed with the axis of the cushion block as the circle center, a plurality of ejector blocks are arranged on the upper portion of the cushion block, and a sliding block is arranged on the lower portion of each ejector block and arranged in the corresponding sliding groove. The side, close to the fixing column, of each ejector block abuts against the outer side of the taper sleeve, and the side, away from the fixing column, of each ejector block abuts against the inner side of the corrected workpiece. The upper portion of the fixing column is in threaded connection with a pressure nut, the pressure nut can rotate on the fixing column to press the taper sleeve downwards, so that the taper sleeve moves downwards and extrudes the jacking block on the peripheral side, and the jacking block abuts against and corrects an external corrected workpiece under the cooperation of the sliding groove and the sliding block. The device is simple in structure, obvious in effect, capable of evenly applying force to a workpiece and easy to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical correction equipment technical field, specifically point to a device for cold correction of circular shell. BACKGROUND

[0002] A certain circular shell often deforms due to harsh working conditions. After deformation, the circular shell needs to be corrected to ensure regularity. When the circular shell becomes an ellipse or other irregular shape, the irregular shape is usually corrected to a circle by manual hammering. However, this method cannot ensure uniform force on the circular shell, which may cause uneven deformation of the shell, larger curvature in some areas, and smaller curvature in other areas. SUMMARY

[0003] The utility model aims at providing a device for cold correction of a circular shell that uniformly applies force to the circular shell, uniformly deforms the circular shell, and ensures better circularity.

[0004] The utility model discloses a device for cold correction of a circular shell, which comprises a base for fixing a corrected workpiece, a fixed column fixedly installed in the middle of the base, a cylindrical cushion block coaxial with the fixed column, and an inverted conical sleeve with a large upper part and a small lower part nested on the fixed column from bottom to top. A plurality of sliding grooves are arranged on the upper surface of the cushion block in a ring shape with the center of the cushion block as the center. A plurality of top blocks in a fan shape are arranged on the upper part of the cushion block. Each top block is provided with a sliding block on the lower part, and the sliding block is arranged in the corresponding sliding groove. The side of each top block close to the fixed column abuts against the outside of the sleeve, and the side away from the fixed column abuts against the inside of the corrected workpiece. A pressure nut is threadedly connected to the upper part of the fixed column. The pressure nut can press the sleeve downward by rotating on the fixed column, so that the sleeve moves downward and extrudes the top blocks on the side, and the top blocks are tightly corrected to the outside of the corrected workpiece under the cooperation of the sliding grooves and the sliding blocks.

[0005] To better achieve the utility model, further, a cushion ring is arranged on the base, the cushion ring is installed outside the cushion block, and the outside of the cushion ring abuts against the inner wall of the corrected workpiece.

[0006] To better achieve the utility model, further, the top block comprises an outer top block and an inner top block that are embedded and detachably connected to each other. The outside of the outer top block abuts against the inner wall of the corrected workpiece. The sliding block is arranged on the lower part of the inner top block. The inside of the inner top block abuts against the outer wall of the sleeve.

[0007] To better achieve the utility model, further, a wrench is installed on the pressure nut. The wrench comprises a nut sleeve that cooperates with the pressure nut. The two sides of the nut sleeve are provided with screw arms.

[0008] In order to better realize the utility model, further, it further includes with the wrench that pressure nut is integral structure, the wrench includes the nut sleeve that middle part is combined with pressure nut, both sides of nut sleeve are provided with screwing arm.

[0009] In order to better realize the utility model, further, the fixed column includes the fixed seat that is fixedly connected with base, the fixed seat upper portion is provided with smooth column, the smooth column upper portion is provided with threaded column, the spacer ring, cushion block, top block, cone sleeve are nested at smooth column, and the pressure nut is threadedly connected with threaded column.

[0010] In order to better realize the utility model, further, eight slide grooves are arranged on the upper surface of the cushion block, and the slide grooves are arranged in a circular array with the axis of the cushion block as the center.

[0011] In order to better realize the utility model, further, the number of top blocks is four, and each top block is in the shape of a quarter of a circular ring.

[0012] In order to better realize the utility model, further, the lower part of the corrected workpiece is fixedly connected with the base by screws, the lower part of the spacer ring is fixedly connected with the base by screws, the cushion block is fixedly connected with the base by screws, and the outer top block and the inner top block are connected by screws.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] (1) the utility model provides a device for cold correction of a circular shell, which can utilize the downward pressure of the pressure nut on the cone sleeve, so that the cone sleeve uniformly applies external force to the surrounding top blocks, and then the top blocks uniformly apply force to the circular corrected workpiece, so that the deformation of the corrected workpiece is uniform, and the roundness is well guaranteed.

[0015] (2) the utility model optimizes the specific structure of the device for cold correction of a circular shell, so that it can be applied to various cold correction processes for circular shells, has a wider range of use, and can avoid excessive deformation during the correction process.

[0016] (3) the utility model has a reasonable structure, perfect function, easy operation, simple disassembly and installation, the corrected circular shell has good roundness, and is suitable for widespread application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 It is the front view of the utility model.

[0019] Figure 2 is a plan view of the utility model;

[0020] Figure 3 is a sectional view of the utility model;

[0021] Figure 4 is a plan view of the base in the utility model;

[0022] Figure 5 is a sectional view of the gasket ring in the utility model;

[0023] Figure 6 is a plan view of the gasket ring in the utility model;

[0024] Figure 7 is a cross-sectional schematic view of the gasket ring in the utility model;

[0025] Figure 8 is a plan view of the gasket block in the utility model;

[0026] Figure 9 is a cross-sectional schematic view of the gasket block in the utility model;

[0027] Figure 10 is a plan view of the outer top block in the utility model;

[0028] Figure 11 is a sectional view of the outer top block in the utility model;

[0029] Figure 12 is a cross-sectional schematic view of the outer top block in the utility model;

[0030] Figure 13 is a plan view of the inner top block in the utility model;

[0031] Figure 14 is a sectional view of the inner top block in the utility model;

[0032] Figure 15 is a cross-sectional schematic view of the inner top block in the utility model;

[0033] Figure 16 is a front view of the fixed column in the utility model;

[0034] Figure 17 is a front view of the wrench in the utility model.

[0035] Wherein: 1 - base, 2 - gasket ring, 3 - gasket block, 31 - sliding groove, 4 - top block, 41 - outer top block, 42 - inner top block, 43 - sliding block, 5 - fixed column, 51 - fixed seat, 51 - smooth column, 52 - threaded column, 6 - taper sleeve, 7 - pressure nut, 8 - wrench, 81 - nut sleeve, 82 - screwing arm, 9 - corrected workpiece. DETAILED DESCRIPTION

[0036] Embodiments of the present application will be described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and should not be understood as a limitation of the present application.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the limitation of "first" and "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly including one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0038] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Example 1

[0039] The main structure of the present embodiment is as follows: Figures 1-4 , Figure 8 , Figure 9As shown, including the base 1 for the fixed workpiece 9 correction, the base 1 is fixedly installed in the middle of the fixed column 5, the fixed column 5 is nested with the coaxial cylindrical pad 3, the upper large lower small inverted conical taper sleeve 6 from bottom to top, the upper surface of the pad 3 is provided with a plurality of annular distribution with the pad 3 as the center of the sliding groove 31, the upper part of the pad 3 is provided with a plurality of fan-shaped top block 4, the lower part of each top block 4 is provided with a sliding block 43, the sliding block 43 is placed in the sliding groove 31 of the corresponding position; Each of the top block 4 is abutted with the outer side of the taper sleeve 6 on the side close to the fixed column 5, and is abutted with the inner side of the corrected workpiece 9 on the side away from the fixed column 5; The upper part of the fixed column 5 is threadedly connected with the pressure nut 7.

[0040] The specific implementation process is that the pressure nut 7 can press the taper sleeve 6 downward by rotating on the fixed column 5, so that the taper sleeve 6 moves downward, because the structure of the taper sleeve 6 is an inverted conical structure with the upper large lower small, when the taper sleeve 6 moves downward, it can extrude the top block 4 on the side, make the top block 4 move to the diameter outside direction under the cooperation of the sliding groove 31 and the sliding block 43, thereby uniformly applying force to the corrected workpiece 9, making the deformation of the corrected workpiece 9 uniform, and the roundness is better guaranteed. Embodiment 2:

[0041] This embodiment is based on the above-mentioned embodiment, further adding a gasket 2, as shown in Figures 5-7 As shown, the base 1 is further provided with a gasket 2, the gasket 2 is installed outside the pad 3, and the outer side of the gasket 2 is abutted with the inner wall of the corrected workpiece 9. The function of the gasket 2 is to prevent the workpiece from being deformed excessively during the process of applying force. The other parts of this embodiment are the same as the above-mentioned embodiment, and will not be described again. Embodiment 3:

[0042] This embodiment is based on the above-mentioned embodiment, further limiting the structure of the top block 4, as shown in Figure 3 , Figures 10-15 As shown, the top block 4 includes an outer top block 41 and an inner top block 42 which are embedded and detachably connected with each other, the outer side of the outer top block 41 is abutted with the inner wall of the corrected workpiece 9, the sliding block 43 is arranged at the lower part of the inner top block 42, and the inner side of the inner top block 42 is abutted with the outer wall of the taper sleeve 6. The top block 4 is provided by the outer top block 41 and the inner top block 42, and the two are detachably connected, so that the inner top block 42 provides the uniform ejection force provided by the taper sleeve 6, the sliding block 43 at the lower part ensures the movement track of the whole top block 4, and the outer top block 41 provides the correction force of the corrected workpiece 9, so that the correction process of different corrected workpieces 9 can be realized by replacing the outer top block 41, making the application scope more extensive. The other parts of this embodiment are the same as the above-mentioned embodiment, and will not be described again. Embodiment 4:

[0043] The embodiment is based on the above-mentioned embodiment, further adding a wrench 8 structure, as shown in Figure 17 The wrench 8 includes a nut sleeve 81 in the middle part matched with the pressure nut 7, and screw arms 82 arranged on both sides of the nut sleeve 81. The wrench 8 is arranged to more conveniently screw the pressure nut 7, so that the pressure nut 7 provides downward pressure for the taper sleeve 9. Other parts of the embodiment are the same as the above-mentioned embodiment, and will not be repeated. Embodiment 5:

[0044] The embodiment is based on the above-mentioned embodiment, further adding a wrench 8 structure, as shown in Figure 17 The wrench 8 includes a nut sleeve 81 in the middle part matched with the pressure nut 7, and screw arms 82 arranged on both sides of the nut sleeve 81. The wrench 8 is arranged to more conveniently screw the pressure nut 7, so that the pressure nut 7 provides downward pressure for the taper sleeve 9. Other parts of the embodiment are the same as the above-mentioned embodiment, and will not be repeated. Embodiment 6:

[0045] The embodiment is based on the above-mentioned embodiment, further adding a wrench 8 structure, as shown in Figure 3 , Figure 16 The fixing column 5 includes a fixing base 51 fixedly connected with the base 1, a smooth column 52 arranged on the upper part of the fixing base 51, a threaded column 53 arranged on the upper part of the smooth column 52, and the spacer ring 2, the spacer block 3, the top block 4, and the taper sleeve 6 are nested at the smooth column 52, and the pressure nut 7 is threadedly connected with the threaded column 53. The fixing base 51 is mainly arranged to facilitate the fixing connection of the fixing column 5 with the base 1, the smooth column 52 is arranged to facilitate the sliding of the spacer ring 2, the spacer block 3, the top block 4, and the taper sleeve 6, and the threaded column 53 is arranged to cooperate with the pressure nut 7 to achieve threaded connection. Other parts of the embodiment are the same as the above-mentioned embodiment, and will not be repeated. Embodiment 7:

[0046] The embodiment is based on the above-mentioned embodiment, further adding a wrench 8 structure, as shown in Figures 8-9 The spacer block 3 is arranged with eight slide grooves 31 on the upper surface, and the slide grooves 31 are arranged in a circular array with the axis of the spacer block 3 as the center. The number of the slide grooves 31 is generally greater than the number of the top blocks 4, so that the position of the top block 4 on the spacer block 3 can be adjusted according to the correction condition of the corrected workpiece 9, and the correction of the corresponding part of the corrected workpiece 9 can be realized. Other parts of the embodiment are the same as the above-mentioned embodiment, and will not be repeated. Embodiment 8:

[0047] The embodiment is based on the above-mentioned embodiment, and further limits the number of the top blocks 4, as shown in the figure. Figures 10-15 The number of the top blocks 4 is four, and each top block 4 is a quarter of a circular ring-shaped sector. In order to ensure good correction effect and uniform application of the correction force, the number of the top blocks 4 is preferably four, and the shape is preferably a quarter of a circular ring. The other parts of the embodiment are the same as those of the above-mentioned embodiment, and will not be described again. Embodiment 9:

[0048] The embodiment is based on the above-mentioned embodiment, and further limits the connection relationship between the structures, as shown in the figure. Figures 1-15 The lower part of the workpiece 9 to be corrected is fixedly connected with the base 1 by screws, the lower part of the grommet 2 is fixedly connected with the base 1 by screws, the gasket 3 is fixedly connected with the base 1 by screws, and the outer top block 41 is connected with the inner top block 42 by screws. The screws are used to connect the components, which can realize stable fixation, facilitate disassembly, and facilitate subsequent maintenance and replacement. The other parts of the embodiment are the same as those of the above-mentioned embodiment, and will not be described again.

[0049] It can be understood that the working principle and working process of the components such as the cone sleeve 6 and the pressure nut 7 of the device structure for cold correction of the circular shell according to one embodiment of the utility model are prior art and are well known to those skilled in the art, and will not be described in detail here.

[0050] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An apparatus for cold sizing of a circular shell, characterized in that, The utility model provides a kind of correcting device for workpiece, including the base (1) for being fixed the workpiece (9) corrected, the fixed column (5) is fixedly installed in the middle of the base (1), the fixed column (5) is further nested with coaxial cylindrical cushion block (3) from bottom to top, the taper sleeve (6) of big upside down small inverted cone, the upper surface of the cushion block (3) is provided with several sliding grooves (31) with the circular distribution of cushion block (3) axial center as center, the upper portion of the cushion block (3) is provided with several fan-shaped top block (4), each lower portion of the top block (4) is provided with sliding block (43), and the sliding block (43) is placed in the sliding groove (31) of corresponding position;Each of the top block (4) is abutted with the outside of taper sleeve (6) on the side close to fixed column (5), and is abutted with the inside of workpiece (9) on the side away from fixed column (5);The upper portion of the fixed column (5) is threadedly connected with pressure nut (7), and the pressure nut (7) can be pressed down tightly taper sleeve (6) by rotating on fixed column (5), so that taper sleeve (6) moves downward, and extrudes the top block (4) of periphery, so that the top block (4) is abutted and corrected to the outside workpiece (9) under the cooperation of sliding groove (31) and sliding block (43).

2. A device for cold straightening of a circular shell according to claim 1, characterized in that The base (1) is further provided with a gasket ring (2), which is installed outside the cushion block (3), and the outer side of the gasket ring (2) is abutted with the inner wall of the workpiece (9) to be corrected.

3. A device for cold straightening of a circular shell according to claim 2, characterized in that The top block (4) includes an outer top block (41) and an inner top block (42) that are mutually embedded and detachably connected, the outer side of the outer top block (41) is abutted with the inner wall of the workpiece (9) to be corrected, the sliding block (43) is arranged at the lower portion of the inner top block (42), and the inner side of the inner top block (42) is abutted with the outer wall of the taper sleeve (6).

4. A device for cold straightening of a circular shell according to claim 1 or 2, characterized in that It also includes a wrench (8) installed on the pressure nut (7), and the wrench (8) includes a nut sleeve (81) in the middle that cooperates with the pressure nut (7), and the two sides of the nut sleeve (81) are provided with screw arms (82).

5. A device for cold straightening of a circular shell according to claim 1 or 2, characterized in that It also includes a wrench (8) that is an integral structure with the pressure nut (7), and the wrench (8) includes a nut sleeve (81) in the middle that cooperates with the pressure nut (7), and the two sides of the nut sleeve (81) are provided with screw arms (82).

6. A device for cold straightening of a circular shell according to claim 2, characterized in that, The fixed column (5) includes a fixed seat (51) fixedly connected with the base (1), the upper portion of the fixed seat (51) is provided with a smooth column (52), the upper portion of the smooth column (52) is provided with a threaded column (53), the gasket ring (2), the cushion block (3), the top block (4) and the taper sleeve (6) are nested at the smooth column (52), and the pressure nut (7) is threadedly connected with the threaded column (53).

7. A device for cold straightening of a circular shell according to claim 1 or 2, characterized in that The upper surface of the cushion block (3) is provided with eight sliding grooves (31), which are circularly arrayed with the axial center of the cushion block (3) as the center.

8. A device for cold straightening of a circular shell according to claim 7, characterized in that The number of the top block (4) is four, and each top block (4) is a quarter of a circular ring-shaped fan.

9. A device for cold straightening of a circular shell according to claim 3, characterized in that, The lower part of the corrected workpiece (9) is fixedly connected with the base (1) through screws, the lower part of the grommet (2) is fixedly connected with the base (1) through screws, the cushion block (3) is fixedly connected with the base (1) through screws, and the outer top block (41) is connected with the inner top block (42) through screws.

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