A method of guaging blanking of a support ring part

Abstract

The application belongs to the technical field of plate processing, and particularly relates to a quota blanking method for a support ring part, which comprises the following steps: reserving an outer ring allowance in a lofting drawing of the support ring, and not reserving an inner ring allowance and a thickness allowance. Based on actual production and manufacturing of the support ring part, the application can not be limited to a traditional extensive cutting and blanking mode, can rely on other equipment and process methods, and can efficiently utilize production resources, so that different blanking methods are given according to actual conditions of the support ring part manufactured according to needs and different design conditions, and the purpose of reasonably distributing raw materials and manufacturing resources and effectively reducing production cost is achieved.

Description

Technical Field

[0001] This application belongs to the field of sheet metal processing technology, specifically relating to a quota-based blanking method for support ring parts. Background Technology

[0002] The support rings used to support centrifugal compressors are generally semi-circular in structure. The upper and lower shell support ring parts are assembled by riveting. Their main function is to support and position the inner and outer shell plates and partitions of the compressor, reduce operating vibration and noise, and at the same time have high corrosion resistance, wear resistance and strength, thus extending the service life of the compressor.

[0003] Material quota personnel, based on the structural form and design requirements of the support ring parts, and combined with experience, cut the material according to the standard sheet metal ring shape, typically requiring a 60mm allowance for the outer diameter and a 60mm allowance for the inner diameter, with the thickness matching the design dimensions. This cutting method, adhering to traditional experience and using a uniform method for support ring parts of different materials, thicknesses, and inner and outer diameters, is no longer suitable for modern production needs. Because support rings have strict material requirements, large dimensions, and high manufacturing costs, this leads to increased production costs and wasted production resources. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art, namely, the problem that the existing support ring parts cutting method leads to waste of production resources and high production costs.

[0005] In view of this, the present invention provides a quota-based material cutting method for support ring parts. This method provides different material cutting methods for different design situations according to the actual situation of the support ring parts to be manufactured, thereby achieving the purpose of rationally allocating raw materials and manufacturing resources and effectively reducing production costs.

[0006] Specifically, the following technical solutions are included:

[0007] According to an embodiment of this application, a method for standard material cutting of a support ring part is provided. The method includes: reserving an outer ring allowance in the layout drawing of the support ring, but not reserving an inner ring allowance or a thickness allowance.

[0008] Furthermore, if the outer ring diameter of the support ring is smaller than the width of the pre-processed plate, the layout diagram is arranged on the pre-processed plate.

[0009] Furthermore, the outer diameter of the lofting diagram is twice the outer diameter of the support ring plus the outer ring allowance, and the inner diameter of the lofting diagram is the inner diameter of the support ring.

[0010] Preferably, the outer ring allowance is 10-15 mm.

[0011] Furthermore, when the outer ring diameter of the support ring is greater than the width of the pre-processed plate, the layout diagram is cut into four quarter rings on average, and the outer ring allowance is zero; every two quarter rings are arranged along the width direction of the pre-processed plate to form a sub-layout diagram; cutting allowances are reserved on both sides of the sub-layout diagram along the length direction of the pre-processed plate and on both sides along the width direction of the pre-processed plate.

[0012] Furthermore, the width of the sub-layout diagram along the width direction of the pre-processed plate is 0.707 times the difference between the outer ring diameter and the inner ring diameter of the support ring plus twice the cutting allowance; the width of the sub-layout diagram along the length direction of the pre-processed plate is 0.707 times the outer ring diameter of the support ring plus twice the cutting allowance.

[0013] Preferably, the cutting allowance is 20-30mm.

[0014] Furthermore, when the wall thickness of the support ring is less than the thickness of the pre-processed plate and the thickness of the support ring is greater than 0.8 to 0.85 times the wall thickness, the material is cut by roller bending; the wall thickness is half the difference between the outer ring diameter and the inner ring diameter of the support ring; the outer ring allowance is zero.

[0015] Furthermore, the pre-processed sheet material is cut into strip profiles; the strip profiles are rolled with a width equal to the thickness, a radial width equal to the wall thickness, and a length equal to 1.57 times the outer ring diameter of the support ring plus a straight end allowance for the roll bending.

[0016] Preferably, the straightening allowance of the roller is 1000-1300mm.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] This application is based on the fact that the actual production and manufacturing of support ring parts can be carried out without being limited to the traditional extensive cutting and blanking mode. It can rely on other equipment and processes to make efficient use of production resources. Therefore, it proposes different blanking methods for different design situations based on the actual situation of the support ring parts to be manufactured, so as to achieve the purpose of rationally allocating raw materials and manufacturing resources and effectively reducing production costs. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. In the drawings:

[0020] Figure 1This is a layout diagram of an embodiment of the present application when the diameter of the outer ring of the support ring is smaller than the width of the pre-processed plate.

[0021] Figure 2 This is a layout diagram of an embodiment of the present application when the diameter of the outer ring of the support ring is greater than the width of the pre-processed plate.

[0022] Figure 3 This is a schematic diagram showing the layout of a support ring with a wall thickness less than the thickness of the pre-processed plate, as described in an embodiment of this application. Detailed Implementation

[0023] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0024] In view of this, according to the embodiments of this application, a quota cutting method for a support ring part is provided, the method comprising: reserving an outer ring allowance in the layout drawing of the support ring, but not reserving an inner ring allowance or a thickness allowance.

[0025] Specifically, traditional cutting methods, due to equipment and process limitations, require a 60mm cutting allowance to be reserved on both the outer and inner rings of the support ring during cutting. This application, based on existing technology, eliminates the need to anticipate the inner ring allowance during cutting, and also significantly reduces the outer ring allowance, thereby reducing the use of raw materials and lowering production costs.

[0026] Furthermore, in one embodiment, such as Figure 1 As shown, when the outer ring diameter of the support ring is smaller than the width of the pre-processed plate, the layout diagram is arranged on the pre-processed plate.

[0027] Furthermore, in one embodiment, the outer diameter of the lofting diagram is twice the outer diameter of the support ring plus the outer ring allowance, and the inner diameter of the lofting diagram is the inner diameter of the support ring.

[0028] Preferably, in a specific embodiment, the outer ring allowance is 10-15 mm.

[0029] Specifically, when the outer diameter of the support ring is smaller than the width of the pre-processed plate, the layout drawing can be directly arranged on the pre-processed plate and cut into a single ring. During assembly, the ring needs to be cut into two semicircles, which are then fitted onto the upper and lower outer shells of the centrifugal compressor and assembled together by riveting.

[0030] Furthermore, in one embodiment, such as Figure 2 As shown, when the outer ring diameter of the support ring is greater than the width of the pre-processed plate, the layout diagram is cut into four quarter rings on average, and the outer ring allowance is zero; every two quarter rings are arranged along the width direction of the pre-processed plate to form a sub-layout diagram; cutting allowances are reserved on both sides of the sub-layout diagram along the length direction of the pre-processed plate and on both sides along the width direction of the pre-processed plate.

[0031] Furthermore, in one embodiment, the width of the sub-lofting diagram along the width direction of the pre-processed plate is 0.707 times the difference between the outer ring diameter of the support ring and the inner ring diameter of the support ring, plus twice the cutting allowance; the width of the sub-lofting diagram along the length direction of the pre-processed plate is 0.707 times the outer ring diameter of the support ring, plus twice the cutting allowance.

[0032] Preferably, in a specific embodiment, the cutting allowance is 20-30mm.

[0033] Specifically, when the outer diameter of the support ring is larger than the width of the pre-processed plate, the layout drawing cannot be directly laid flat on the pre-processed plate. Cutting the layout drawing into two semicircles and arranging them in parallel on the pre-processed plate would also result in material waste. Therefore, this application cuts the layout drawing into four quarter-circles on average, and combines these four quarter-circles in pairs to form a cutting unit. The two quarter-circles are arranged along the width direction of the pre-processed plate, and the optimal distance between the two quarter-circles is calculated to facilitate cutting. At this time, no outer ring allowance is reserved, but a cutting allowance is directly reserved on the sub-layout drawing to ensure that cutting is feasible.

[0034] Furthermore, in one embodiment, such as Figure 3 As shown, when the wall thickness of the support ring is less than the thickness of the pre-processed plate and the thickness of the support ring is greater than 0.8 to 0.85 times the wall thickness, the material is cut by roller bending; the wall thickness is half of the difference between the outer ring diameter and the inner ring diameter of the support ring; the outer ring allowance is zero.

[0035] Furthermore, in one embodiment, the pre-processed sheet material is cut into strip profiles; the strip profiles are rolled with a width equal to the thickness, a radial width equal to the wall thickness, and a length equal to 1.57 times the outer diameter of the support ring plus a straight end allowance for the roll bending.

[0036] Preferably, in a specific embodiment, the straightening allowance of the roller bend is 1000-1300mm.

[0037] Specifically, when the wall thickness of the support ring is less than the thickness of the pre-processed plate and the thickness of the support ring is greater than 0.8 to 0.85 times the wall thickness, this application uses a roll bending method for material cutting. This method directly rolls the long profile into a ring shape, saving raw materials to a greater extent.

[0038] Preferably, the width of the pre-processed sheet material used in this application is 2200mm.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for standardizing the material cutting of a support ring component, characterized in that, The method includes: the layout drawing of the support ring reserves an outer ring allowance, but does not reserve an inner ring allowance or a thickness allowance; When the outer ring diameter of the support ring is greater than the width of the pre-processed plate, the layout drawing is cut into four quarter rings on average, and the outer ring margin is zero. Two of the quarter rings are arranged along the width of the pre-processed sheet material to form a sub-layout diagram; Cutting allowances are reserved on both sides of the pre-processed plate along its length and on both sides of the pre-processed plate along its width in the sub-layout diagram.

2. The standard material cutting method for the support ring part according to claim 1, characterized in that, When the outer diameter of the support ring is smaller than the width of the pre-processed plate, the layout diagram is arranged on the pre-processed plate.

3. The standard material cutting method for the support ring part according to claim 2, characterized in that, The outer diameter of the lofting diagram is twice the outer diameter of the support ring plus the outer ring allowance, and the inner diameter of the lofting diagram is the inner diameter of the support ring.

4. The standard material cutting method for the support ring part according to claim 2, characterized in that, The outer ring allowance is 10-15 mm.

5. The method for standardizing the material cutting of the support ring part according to claim 1, characterized in that, The width of the sub-layout diagram along the width direction of the pre-processed plate is 0.707 times the difference between the outer ring diameter of the support ring and the inner ring diameter of the support ring, plus twice the cutting allowance; The width of the sub-layout diagram along the length of the pre-processed plate is 0.707 times the outer diameter of the support ring plus twice the cutting allowance.

6. The method for standardizing the material cutting of the support ring part according to claim 1, characterized in that, The cutting allowance is 20-30mm.

7. The standard material cutting method for the support ring part according to claim 1, characterized in that, The method includes: When the wall thickness of the support ring is less than the thickness of the pre-processed plate and the thickness of the support ring is greater than 0.8 to 0.85 times the wall thickness, the material is cut by roller bending. The wall thickness is half the difference between the outer ring diameter of the support ring and the inner ring diameter of the support ring; The outer ring margin is zero.

8. The method for standardizing the material cutting of the support ring part according to claim 7, characterized in that, The pre-processed sheet material is cut into strip profiles; The width of the strip profile for roll bending is the thickness, the radial width is the wall thickness, and the length is 1.57 times the outer ring diameter of the support ring plus the roll bending straight end allowance.

9. The method for standardizing the material cutting of the support ring part according to claim 8, characterized in that, The allowance for the straightening head of the roller is 1000-1300mm.

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