Clamping tool for supplementary machining of volutes

Abstract

The utility model discloses a clamping tool for supplementary machining of volutes, which belongs to the technical field of volute repair and comprises a plurality of groups of clamping components arranged in the circumferential direction of the volutes, each clamping component comprises a vertically arranged support column, and a clamping component is arranged on the upper end face of each support column. The lower end face of the clamping component is attached to the reference end face of the outlet end of the volute. A plurality of screw holes are formed in the reference end face of the outlet end of the volute in the circumferential direction, a fixing hole is formed in the clamping component, and the clamping component is connected with the volute through a fastener in the fixing hole. According to the utility model, a workpiece mounting plane is taken as a reference, so that the flatness is quickly adjusted, the clamping stability is ensured, the secondary positioning error is obviously reduced, the secondary positioning error reaches a minimum level, the positioning requirements of volutes with multiple sizes are met, and excellent adaptability and accuracy are shown.

Description

Technical Field

[0001] The utility model relates to a volute repair, belonging to the technical field, and in particular to a clamping tool for supplementary processing of volutes. Background Art

[0002] The supplementary processing of the volute is a repair work. The difficulty is that the secondary clamping cannot be exactly the same as the first processing datum. Some of the first processing positioning datums have even been cut off in the finished product stage, which greatly increases the difficulty of the coaxiality, flatness and verticality of the secondary clamping. Once the clamping deviation exceeds the allowable range, the workpiece may be scrapped, which will not only cause huge economic losses, but also seriously affect the progress of the project. Summary of the invention

[0003] In view of the problems existing in the prior art, the utility model provides a clamping tool for supplementary processing of volutes. It takes the workpiece installation plane as a reference, realizes the rapid adjustment of flatness, ensures the stability of the clamping, and significantly reduces the secondary positioning error to an extremely small level. It is also suitable for the positioning requirements of volutes of various sizes and demonstrates excellent adaptability and precision.

[0004] The utility model is implemented as follows: a clamping tool for supplementary processing of volutes, including a plurality of clamping assemblies arranged around the circumference of the volute, the clamping assembly including a vertically arranged supporting column, the upper end face of the supporting column is provided with a clamping member, the lower end face of the clamping member is affixed to the reference end face of the volute outlet end; a plurality of screw holes are circumferentially arranged on the reference end face of the volute outlet end, the clamping member is provided with a fixing hole, and the fixing hole connects the clamping member to the volute through a fastener.

[0005] Furthermore, the fixing hole is an arc-shaped long hole, the center point of each screw hole on the reference end face is located on the same circular path, and the center line of the arc-shaped long hole coincides with the circular path. It can adapt to a variety of mounting and positioning requirements and allow a larger assembly tolerance. Even in the case of slight deviations, the position in the long hole can be adjusted to ensure correct mounting.

[0006] Furthermore, a support base is provided on the lower end surface of the support column, and the cross-sectional area of ​​the support base is larger than the cross-sectional area of ​​the support column. The contact area between the base and the ground is larger, which increases the stability of the entire support system; when the column is subjected to loads, these loads can be more evenly distributed to the base, thereby reducing the pressure per unit area; due to the large area of ​​the support base, it can better adapt to different ground conditions, such as uneven ground, soft ground, etc., to ensure that the support column can remain stable in various environments.

[0007] Furthermore, the clamping assembly is provided with three groups, and the three groups of the clamping assembly are equally spaced around the circumference of the volute, so that the volute can be clamped more stably, the displacement or shaking during the repair of the volute is reduced, and the weight of the volute can be evenly borne, so as to prevent the deformation or damage of the volute caused by uneven force.

[0008] Furthermore, the clamping member is a fan-shaped plate. The shape of the fan-shaped plate matches the circular shape of the reference end face of the volute outlet, so it can be tightly fitted and fixed on the volute, ensuring the stability between the clamping member and the volute, reducing shaking or displacement caused by shape mismatch, and is easy to install and adjust the position.

[0009] The utility model has the following advantages and technical effects: due to the adoption of the above technical scheme, the workpiece installation plane is used as a reference, and the flatness is quickly adjusted, the stability of the clamping is ensured, and the secondary positioning error is significantly reduced to an extremely small level. It is also suitable for the positioning requirements of volutes of multiple sizes, and exhibits excellent adaptability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model.

[0011] In the figure: 1. Support column; 2. Clamping member; 2-1. Fixing hole; 3. Volute outlet; 3-1. Screw hole; 4. Support base. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0013] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0014] like Figure 1As shown, the present application provides a clamping tool for supplementary processing of volutes, including a plurality of clamping assemblies arranged around the circumference of the volute, the clamping assembly including a vertically arranged support column 1, the upper end surface of the support column 1 is provided with a clamping member 2, the lower end surface of the clamping member 2 is attached to the reference end surface of the volute outlet end 3; the reference end surface of the volute outlet end 3 is provided with a plurality of screw holes 3-1 along the circumference, the clamping member 2 is provided with a fixing hole 2-1, and the fixing hole 2-1 connects the clamping member 2 to the volute through a fastener. Specifically, the fastener is a bolt or a screw.

[0015] Furthermore, the fixing hole 2-1 is an arc-shaped long hole, and the center point of each screw hole 3-1 on the reference end face is located on the same circular path, and the center line of the arc-shaped long hole coincides with the circular path. It can meet various mounting and positioning requirements and allow a larger assembly tolerance. Even in the case of slight deviation, the position in the long hole can be adjusted to ensure correct mounting.

[0016] Furthermore, a support base 4 is provided on the lower end surface of the support column 1, and the cross-sectional area of ​​the support base 4 is larger than the cross-sectional area of ​​the support column 1. The contact area between the base and the ground is larger, which increases the stability of the entire support system; when the column is subjected to loads, these loads can be more evenly distributed to the base, thereby reducing the pressure per unit area; since the support base 4 has a larger area, it can better adapt to different ground conditions, such as uneven ground, soft ground, etc., to ensure that the support column 1 can remain stable in various environments.

[0017] Furthermore, the clamping assembly is provided with three groups, and the three groups of the clamping assembly are equally spaced around the circumference of the volute, so that the volute can be clamped more stably, the displacement or shaking during the repair of the volute is reduced, and the weight of the volute can be evenly borne, so as to prevent the deformation or damage of the volute caused by uneven force.

[0018] Furthermore, the clamping member 2 is a fan-shaped plate. The shape of the fan-shaped plate matches the circular shape of the reference end face of the volute outlet end 3, so it can be tightly fitted and fixed on the volute, ensuring the stability between the clamping member 2 and the volute, reducing the shaking or displacement caused by shape mismatch; and it is easy to install and adjust the position.

[0019] By adopting the above technical solution, the workpiece installation plane is used as a reference to achieve rapid adjustment of flatness, ensure the stability of the clamping, and significantly reduce the secondary positioning error to an extremely small level. It is also suitable for the positioning needs of volutes of various sizes, demonstrating excellent adaptability and accuracy.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping tool for supplementary processing of volutes, characterized in that: It comprises a plurality of clamping assemblies arranged around the circumference of the volute, wherein the clamping assemblies comprise vertically arranged support columns, the upper end surfaces of the support columns are provided with clamping members, and the lower end surfaces of the clamping members are attached to the reference end surface of the outlet end of the volute; A plurality of screw holes are arranged on the reference end surface of the outlet end of the volute in the circumferential direction, and a fixing hole is arranged on the clamping member. The clamping member is connected to the volute through a fastener in the fixing hole.

2. The fixture for supplementary processing of spiral shells according to claim 1, characterized in that: The fixing hole is an arc-shaped long hole, the center point of each screw hole on the reference end face is located on the same circular path, and the center line of the arc-shaped long hole coincides with the circular path.

3. The clamping tool for supplementary processing of spiral cases according to claim 1 or 2, characterized in that: A support base is disposed on the lower end surface of the support column, and the cross-sectional area of ​​the support base is larger than the cross-sectional area of ​​the support column.

4. The clamping tool for supplementary processing of spiral shells according to claim 1, characterized in that: The clamping components are provided in three groups, and the three groups of clamping components are equidistantly distributed around the circumference of the volute.

5. The clamping tool for supplementary processing of spiral shells according to claim 1, characterized in that: The clamping component is a fan-shaped plate.

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