Inner support combined tool for machining outer circular surface of large-diameter thin-wall cylinder

Abstract

The invention discloses an inner supporting combined tool for machining the outer circle face of a large-diameter thin-wall cylinder. The inner supporting combined tool comprises a center supporting piece and inner supporting mechanisms fixed to the two ends of the center supporting piece. The inner supporting mechanism is composed of an inner supporting body and a set of adjusting bolts installed on the inner supporting body. The two ends of the center supporting piece are fixed to the middle of the plate face of the inner supporting body of one inner supporting mechanism through flange plates, and adjusting bolts are connected into screw mounting holes of the annular supporting part of each inner supporting mechanism. The inner supporting combined tool is inserted into an inner cavity of the large-diameter thin-wall barrel, and the large-diameter thin-wall barrel is clamped through the inner supporting combined tool by adjusting the extending length of each adjusting bolt on each set of inner supporting mechanism. By means of the inner support combined tool, finish machining of the outer circle faces of cylinder products with different lengths and different calibers is achieved.

Description

Technical Field

[0001] The invention relates to an internal support combined tooling for machining the outer cylindrical surface of a large-diameter thin-walled cylinder, and belongs to the field of mechanical machining. Background Art

[0002] When machining the outer cylindrical surface of a large-diameter thin-walled cylinder, the clamping methods in the conventional horizontal lathe processing methods, such as three-jaw and ferrule, are prone to clamping deformation of the product, resulting in cylindricality deviation; when turning the outer cylindrical surface, it is easy to cause radial deformation of the product, resulting in the cylindricality and wall thickness difference of the processed product failing to meet the requirements, affecting product quality. The conventional solution is to use a vertical lathe to process large-diameter thin-walled cylinders. This method can solve the deformation caused by the product's own gravity under horizontal clamping, but when turning the outer shape, as the wall thickness of the workpiece gradually decreases, the workpiece will vibrate during the processing process, resulting in cutting chatter marks, which will reduce the surface quality of the workpiece and make it difficult to process. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that vibration is easy to occur when processing the outer cylindrical surface of a large-diameter cylinder, resulting in the surface quality of the processed product failing to meet the requirements, and to provide an internal support combined tooling for processing the outer cylindrical surface of a large-diameter thin-walled cylinder. The purpose of the present invention is achieved through the following technical solutions:

[0004] The present invention discloses an internal support assembly tool for machining the outer cylindrical surface of a large-diameter thin-walled cylinder, comprising a central support member and internal support mechanisms fixed at both ends of the central support member;

[0005] The inner support mechanism is composed of an inner support body and a group of adjustment bolts installed on the inner support body;

[0006] The inner support body is a circular plate structure, an annular support portion is axially extended from the outer edge of the inner support body, a group of screw mounting holes evenly distributed around the circumference are opened on the annular support portion, and a flange connection screw hole is opened in the middle of the inner support body plate surface;

[0007] The central support member is composed of a central support rod and flanges vertically fixed at both ends of the central support rod;

[0008] The two ends of the central support member are fixed to the middle of the inner support body plate of a set of inner support mechanisms through flanges, and each screw mounting hole of the annular support part of each set of inner support mechanisms is connected with an adjusting bolt;

[0009] The inner support assembly tool is inserted into the inner cavity of the large-diameter thin-walled cylinder, and the inner support assembly tool is clamped on the large-diameter thin-walled cylinder by adjusting the extension length of each adjusting bolt on each set of inner support mechanisms.

[0010] An annular positioning portion is provided at the center of the plate surface on one side where the inner support body is connected to the central support member. The inner diameter of the annular positioning portion matches the diameter of the flanges at both ends of the central support member. The inner support body is radially positioned with the central support member through the annular positioning portion.

[0011] Beneficial Effects

[0012] The internal support combined tooling for machining the outer circumference of a large-diameter thin-walled cylinder of the present invention has a simple structure, is easy to install and use, and realizes the fine machining of the outer circumference of cylinder products of different lengths and different calibers. By adjusting the adjusting bolts in the support mechanism, the internal support of cylinders of different calibers is realized, which greatly reduces the deformation during the machining of the outer circumference of the large-diameter cylinder, and at the same time increases the strength of the large-diameter thin-walled cylinder parts, preventing vibration during the machining of the workpiece. The connecting flange can connect multiple support mechanisms to realize the internal support of cylinders of different lengths, saving tooling costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the internal support assembly tooling of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the inner support mechanism in the inner support assembly tooling of the present invention;

[0015] Figure 3 for Figure 2 AA section view;

[0016] Figure 4 It is a structural schematic diagram of the central support member in the internal support assembly tooling of the present invention;

[0017] In the figure, 1-central support member, 2-internal support mechanism, 21-internal support body, 22-adjusting bolt. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Example

[0020] like Figure 1 As shown, an internal support assembly tool for machining the outer cylindrical surface of a large-diameter thin-walled cylinder of the present invention comprises a central support member 1 and internal support mechanisms 2 fixed at both ends of the central support member 1;

[0021] like Figure 2 , 3 As shown, the inner support mechanism 2 is composed of an inner support body 21 and a group of adjustment bolts 22 installed on the inner support body 21;

[0022] The inner support body 21 is a circular plate structure, an annular support portion axially extends from the outer edge of the inner support body 21, the annular support portion is provided with a group of screw mounting holes evenly distributed around the circumference, and a flange connection screw hole is provided in the middle of the inner support body 21 plate surface;

[0023] like Figure 4 As shown, the central support member 1 is composed of a central support rod and flanges vertically fixed at both ends of the central support rod;

[0024] The two ends of the central support member 1 are fixed to the middle of the plate surface of the inner support body 21 of each set of inner support mechanism 2 through flanges, and each screw mounting hole of the annular support part of each set of inner support mechanism 2 is connected with an adjusting bolt 22;

[0025] The inner support assembly tool is inserted into the inner cavity of the large-diameter thin-walled cylinder, and the inner support assembly tool is clamped on the large-diameter thin-walled cylinder by adjusting the extension length of each adjusting bolt 22 on each set of inner support mechanism 2.

[0026] An annular positioning portion is provided at the center of the plate surface on one side where the inner support body 21 is connected to the central support member 1. The inner diameter of the annular positioning portion matches the diameter of the flanges at both ends of the central support member 1. The inner support body 21 is radially positioned with the central support member 1 through the annular positioning portion.

Claims

1. An internal support assembly tool for machining the outer cylindrical surface of a large-diameter thin-walled cylinder, characterized by: It includes a central support member and an inner support mechanism fixed at both ends of the central support member; The inner support mechanism is composed of an inner support body and a group of adjustment bolts installed on the inner support body; The inner support body is a circular plate structure, an annular support portion is axially extended from the outer edge of the inner support body, a group of screw mounting holes evenly distributed around the circumference are opened on the annular support portion, and a flange connection screw hole is opened in the middle of the inner support body plate surface; The central support member is composed of a central support rod and flanges vertically fixed at both ends of the central support rod; The two ends of the central support member are fixed to the middle of the inner support body plate of a set of inner support mechanisms through flanges, and each screw mounting hole of the annular support part of each set of inner support mechanisms is connected with an adjusting bolt; The inner support assembly tool is inserted into the inner cavity of the large-diameter thin-walled cylinder, and the inner support assembly tool is clamped on the large-diameter thin-walled cylinder by adjusting the extension length of each adjusting bolt on each set of inner support mechanisms.

2. The inner support assembly tool as claimed in claim 1, characterized in that: An annular positioning portion is provided at the center of the plate surface on one side where the inner support body is connected to the central support member. The inner diameter of the annular positioning portion matches the diameter of the flanges at both ends of the central support member. The inner support body is radially positioned with the central support member through the annular positioning portion.

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