Supporting device for flexible tube plate tube hole machining

Abstract

The utility model discloses a supporting device for flexible tube plate tube hole machining, which comprises a flexible tube plate body, a supporting back plate, a supporting tube and a supporting positioning upper partition plate, the supporting tube is welded with the supporting back plate according to a tube plate hole arrangement mode, and the supporting positioning upper partition plate is arranged above the supporting back plate. The flexible tube plate body is of a double-side pit structure. According to the supporting device for flexible tube plate tube hole machining, through the arrangement of the supporting back plate, the supporting tubes, the supporting and positioning upper partition plate and the like, after one flexible tube plate body is machined, the flexible tube plate body is detached, the device does not need to be detached, the second flexible tube plate body is fixed to the device and aligned according to the four center lines, rapid clamping and alignment can be achieved, and the machining efficiency is improved. And moreover, the problem that tube holes are difficult to machine due to insufficient rigidity of the flexible tube plate is solved, and the purpose of high-quality machining of the tube holes of the flexible tube plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel flexible tube sheet processing, in particular to a supporting device for flexible tube sheet tube hole machining. Background Art

[0002] For flexible tube sheets, due to the structural characteristics of double-sided pits, the thickness of the tube hole area is thin. If the holes are directly drilled in the conventional way, the rigidity is insufficient and vibration will occur during the processing, making it difficult to ensure the quality of the tube hole processing. Therefore, we propose a support device for flexible tube sheet tube hole machining to solve these problems. Utility Model Content

[0003] The utility model aims to provide a support device for machining tube holes in a flexible tube sheet in view of the deficiencies in the prior art, so as to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a support device for machining tube holes in a flexible tube sheet, comprising a flexible tube sheet body, a support back plate, a support tube and a support positioning upper baffle, the support tube is welded to the support back plate according to the tube sheet hole arrangement, the support positioning upper baffle is arranged above the support back plate, and the flexible tube sheet body is a double-sided pit structure.

[0005] As a preferred technical solution of the utility model, some of the flexible tube plate body hole lines and center lines are marked on the support back plate, and all lines are marked at one time using the marking function of the laser cutting machine to ensure accurate positioning.

[0006] As a preferred technical solution of the utility model, the inner diameter of the support tube is larger than the aperture of the flexible tube plate body, ensuring that the tool will not collide during processing.

[0007] As a preferred technical solution of the utility model, the support back plate is provided with a threaded hole, and the threaded hole is an M30 threaded hole.

[0008] As a preferred technical solution of the utility model, threaded holes are also opened at some positions of the support tubes, and the threaded holes are M30 threaded holes.

[0009] As a preferred technical solution of the utility model, a plurality of groups of support tube welding points are marked on the support back plate.

[0010] Compared with the prior art, the utility model provides a support device for machining tube holes in a flexible tube sheet, which has the following beneficial effects:

[0011] The support device for machining tube holes in a flexible tube sheet is provided with a support back plate, a support tube and a support positioning upper partition plate. After one flexible tube sheet body is machined, the flexible tube sheet body is removed without removing the device. The second flexible tube sheet body is fixed to the device and aligned according to four center lines. Rapid clamping and alignment can be achieved, and the problem of difficult tube hole machining due to insufficient rigidity of the flexible tube sheet is solved, thereby achieving the purpose of high-quality machining of tube holes in the flexible tube sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the assembly structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the supporting back plate structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the support and positioning structure of the upper partition of the utility model;

[0015] Figure 4 This is a schematic diagram of the main structure of the flexible tube plate of the utility model.

[0016] Figure numerals: 1. flexible tube sheet body; 2. threaded hole; 3. welding point; 4. center line; 5. support back plate; 6. support positioning upper partition; 7. support tube. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 4 In this embodiment: a support device for machining tube holes in a flexible tube sheet includes a flexible tube sheet body 1, a support back plate 5, a support tube 7 and a support positioning upper baffle 6. The support tube 7 is welded to the support back plate 5 according to the arrangement of the tube sheet holes. The support positioning upper baffle 6 is arranged above the support back plate 5. The flexible tube sheet body 1 is a double-sided pit structure.

[0019] In this embodiment, some hole lines and center lines 4 of the flexible tube plate body 1 are marked on the support back plate 5, and all lines are marked at once using the marking function of the laser cutting machine to ensure accurate positioning. The inner diameter of the support tube 7 is larger than the hole diameter of the flexible tube plate body 1 to ensure that the tool does not collide during processing. A threaded hole 2 is provided on the support back plate 5, and the threaded hole 2 is an M30 threaded hole 2. Threaded holes 2 are also opened at some positions of the support tubes 7, and the threaded holes 2 are M30 threaded holes 2. Multiple groups of support tube 7 welding points 3 are marked on the support back plate 5.

[0020] The working principle and use process of the utility model: the support device for machining tube holes of a flexible tube sheet is firstly marked on the support back plate 5 with part of the tube sheet hole lines and the center line 4, and all the lines are marked at once using the marking function of the laser cutting machine to ensure accurate positioning, and the support tube 7 is welded to the support back plate 5 according to the hole arrangement mode of the flexible tube sheet body 1, and the support positioning upper partition plate 6 is used as positioning, and the inner diameter of the support tube 7 is larger than the aperture of the flexible tube sheet body 1 to ensure that the tool will not collide during processing, and after the welding is completed, the boring and milling machine is used to level all the ends of the tubes, and at the same time, an M30 threaded hole 2 is provided on the back plate of the support back plate 5 to facilitate the clamping of the flexible tube sheet body 1 Tightening, before processing the flexible tube sheet body 1, first assemble the device with the bending plate of the boring and milling machine, fix it with a pressing plate, then assemble the tube sheet with the jig, tighten it with the bolt holes of the support back plate 5 through T-bolts, and align it according to the pre-marked center line 4. M30 bolt holes 2 are also opened at the positions of some support tubes 7, the purpose is to facilitate temporary tightening during processing, and the device can be applied to flexible tube sheet bodies 1 of different sizes within a certain range. After one flexible tube sheet body 1 is processed, the flexible tube sheet body 1 is removed without removing the device, and the second flexible tube sheet body 1 is fixed to the device, and aligned according to the four center lines 4, which can achieve rapid clamping and alignment.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support device for machining tube holes in a flexible tube sheet, comprising a flexible tube sheet body (1), a support back plate (5), a support tube (7) and a support positioning upper baffle (6), characterized in that: The support tube (7) is welded to the support back plate (5) according to the arrangement of the tube plate holes, the support positioning upper baffle (6) is arranged above the support back plate (5), and the flexible tube plate body (1) is a double-sided pit structure.

2. A support device for machining tube holes in a flexible tube sheet according to claim 1, characterized in that: The supporting back plate (5) is marked with some hole lines and a center line (4) of the flexible tube plate body (1), and all lines are marked at once using the marking function of the laser cutting machine to ensure accurate positioning.

3. The support device for machining a tube hole in a flexible tube sheet according to claim 1, characterized in that: The inner diameter of the support tube (7) is larger than the aperture of the flexible tube plate body (1), thereby ensuring that the tool will not collide during processing.

4. The support device for machining a tube hole in a flexible tube sheet according to claim 1, characterized in that: The supporting back plate (5) is provided with a threaded hole (2), and the threaded hole (2) is an M30 threaded hole (2).

5. The support device for machining a tube hole in a flexible tube sheet according to claim 1, characterized in that: A threaded hole (2) is also formed at a position of some of the support tubes (7), and the threaded hole (2) is an M30 threaded hole (2).

6. The support device for machining tube holes in a flexible tube sheet according to claim 1, characterized in that: The support back plate (5) is provided with a plurality of groups of support tube (7) welding points (3).

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