A method of manufacturing a pipe manufacturing mold

Abstract

The application discloses a manufacturing method of a pipe manufacturing mold, which comprises the following steps: step 1, scanning a first pipe manufacturing mold and importing the same into three-dimensional software; step 2, placing a first pipe center on a center line of the first pipe manufacturing mold; step 3, offsetting n horizontal lines equidistantly on both sides of the center line; step 4, measuring the distance between the horizontal lines and the intersection points of the first pipe manufacturing mold and the first pipe; step 5, drawing a second pipe on the center line of the first pipe manufacturing mold; step 6, marking the intersection points of the horizontal lines and the second pipe and offsetting the intersection points to the direction of the recessed position of the first pipe manufacturing mold; step 7, connecting the offset intersection points in step 6 to obtain a reverse mold concave curve; and step 8, rotating and cutting the entity again by using the mold concave curve in step 7 to obtain a reverse second pipe manufacturing mold. The method not only meets the pipe manufacturing requirement, but also greatly reduces the purchase cost of the pipe manufacturing mold.

Description

Technical Field

[0001] This invention relates to the field of tube manufacturing technology, and specifically to a method for manufacturing a tube mold. Background Technology

[0002] Pipe-making equipment is categorized by material into high-frequency pipe-making machines and stainless steel pipe-making machines, also known as stainless steel welded pipe machines. They are primarily used for decorative and industrial stainless steel pipes. Pipe-making machines are mainly divided into two types: the common high-frequency welded pipe machine and the stainless steel pipe-making machine. High-frequency welded pipe machines are mainly used to produce various iron pipes, water pipes, etc.; while stainless steel pipe-making machines are mainly used to produce various stainless steel decorative pipes, such as pipes for stair railings, security doors and windows, and guardrails. They can also produce various automotive exhaust pipes, heat exchanger pipes, fluid pipes, and food processing pipes. For example, Chinese invention patent CN106269983A discloses a stainless steel pipe-making production line for pipe manufacturing.

[0003] Currently, the production of automotive exhaust pipes requires a wide variety of pipe diameters. Each diameter requires a dedicated set of pipe-making molds, and each mold set typically consists of approximately 28 sets of 56 roller molds to produce pipes of a specified diameter. These molds experience wear during production, necessitating the use of spare molds. However, without processing drawings, the molds must be purchased externally. This is costly, as purchasing molds for every diameter specification would incur significant expenses. Furthermore, manufacturers do not possess molds for all diameters and sizes, making it impossible to meet all production needs. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to reduce the purchase cost of tube-making molds.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A method for manufacturing a tube-making mold specifically includes the following steps:

[0007] Step 1: After scanning the first pipe-making mold that can produce qualified pipes at a 1:1 scale using a 3D scanning device, import it into the 3D software;

[0008] Step 2: Place the center of the first tube with diameter d on the dividing line of the first tube-making mold, and make the outermost end of the first tube coincide with the lowest point of the indentation of the first tube-making mold;

[0009] Step 3: Offset n horizontal lines at equal intervals on both sides of the midline, with a distance L between adjacent horizontal lines;

[0010] Step 4: Measure the distances l1, l2...l between the intersections of each horizontal line with the arc of the first tube mold and the arc of the first tube. n ;

[0011] Step 5: Draw the second tube with diameter D to be reverse-engineered on the dividing line of the first tube-making mold, and make the outermost end of the second tube coincide with the lowest point of the indentation of the first tube-making mold;

[0012] Step 6: Mark the intersection points of the n horizontal lines and the arc of the second pipe, then mark the intersection points along the horizontal lines at intervals l1, l2...l as in Step 4. n The corresponding position is offset to the recessed position of the first tube-making mold;

[0013] Step 7: Connect the offset intersection surfaces from Step 6 using 3D software to obtain the reverse mold concave curve;

[0014] Step 8: Use the boss function to grow the solid into a cylindrical shape using the mold, and then use the concave curve of the mold in Step 7 to rotate and cut off the solid to obtain the reverse second tube mold.

[0015] In this invention, only one type of pipe-making mold needs to be purchased to manufacture pipe-making molds of other sizes, which not only meets the needs of pipe making of different sizes, but also greatly reduces the purchase cost of pipe-making molds.

[0016] Preferably, in step 2, d is 105 mm.

[0017] Preferably, L in step 3 is 5 mm.

[0018] Preferably, in step 4, D is 105.6 mm.

[0019] Preferably, the 3D software used in steps 1 and 7 is SolidWorks software.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In this invention, only one type of pipe-making mold needs to be purchased to manufacture pipe-making molds of other sizes, which not only meets the needs of pipe making of different sizes, but also greatly reduces the purchase cost of pipe-making molds. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the fit between the first tube-making mold and the first tube in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the horizontal line in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram showing the distance between the first tube-making mold and the first tube in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram illustrating the fit between the first tube-making mold and the second tube in an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the second pipe spacing offset according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the second tube-making mold in an embodiment of the present invention. Detailed Implementation

[0029] To facilitate understanding of the technical solution of the present invention by those skilled in the art, the technical solution of the present invention will now be further described in conjunction with the accompanying drawings.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0032] This embodiment discloses a method for manufacturing a tube-making mold, which specifically includes the following steps:

[0033] Step 1: After scanning the first pipe-making mold 1, which can produce qualified pipes, at a 1:1 scale using a 3D scanning device, import it into 3D software. In this embodiment, the 3D software is SolidWorks.

[0034] Step 2: Refer to Figure 1The center of the first tube 2 with a diameter of d is placed on the dividing line 3 in the first tube mold 1, and the outermost end of the first tube 2 coincides with the lowest point of the concavity of the first tube mold 1. In this embodiment, the diameter d is 105mm.

[0035] Step 3: Refer to Figure 2 The center line 3 is offset by n horizontal lines 4 at equal intervals on both sides above and below it. The distance between adjacent horizontal lines 4 is L. In this embodiment, L is 5mm and n is 20.

[0036] Step 4: Refer to Figure 3 Measure the distances l1, l2...l between the intersection points of each horizontal line 4 and the arc of the first pipe mold 1 and the arc of the first pipe 2. n In this embodiment, the spacing l1 above the center line 3 is 0.05mm, l2 is 0.09mm, l3 is 0.15mm, l4 is 0.23mm, l5 is 0.36mm, l6 is 0.60mm, l7 is 0.86mm, l8 is 1.34mm, l9 is 2.12mm, and l1 is 0.05mm. 10 It is 4.44mm; the spacing l below the center line 3 11 For 0.06mm, l 12 0.11mm, l 13 For 0.20mm, l 14 0.37mm, l 15 0.54mm, l 16 0.77mm, l 17 For 0.1.12mm, l 18 It is 1.59mm, l 19 It is 2.44mm, l 20 It is 4.85mm.

[0037] Step 5: Refer to Figure 4 The second tube 5 with a diameter of D to be reverse-engineered is drawn on the dividing line 3 in the first tube-making mold 1, and the outermost end point of the second tube 5 coincides with the lowest point of the recess in the first tube-making mold 1. In this embodiment, the diameter D is 105.6 mm.

[0038] Step 6: Refer to Figure 5 Mark the intersection points of the n horizontal lines 4 and the arc of the second pipe 5, and then mark the intersection points along the horizontal lines 4 according to the spacing l1, l2...l in step 4. n The corresponding position is offset to the recessed position of the first tube mold 1.

[0039] Step 7: Connect the intersection surfaces after offsetting in Step 6 using SolidWorks software to obtain the reverse mold concave curve 6.

[0040] Step 8: Refer to Figure 6 and Figure 7 The mold is used to grow solid 7 into a cylindrical shape using the boss function. Solid 7 is then rotated and cut off using the mold concave curve 6 in step 7 to obtain the reverse second tube mold 8, which is a tube mold with a diameter of 105.6 mm.

[0041] In this invention, only one type of pipe-making mold needs to be purchased to manufacture pipe-making molds of other sizes, which not only meets the needs of pipe making of different sizes, but also greatly reduces the purchase cost of pipe-making molds.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] The above embodiments are merely examples of implementation methods of the invention. The scope of protection of the present invention is not limited to the above embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A method for manufacturing a tube-making mold, characterized in that: Specifically, the steps include the following: Step 1: After scanning the first pipe-making mold that can produce qualified pipes at a 1:1 scale using a 3D scanning device, import it into the 3D software; Step 2: Place the center of the first tube with diameter d on the dividing line of the first tube-making mold, and make the outermost end of the first tube coincide with the lowest point of the indentation of the first tube-making mold; Step 3: Offset n horizontal lines at equal intervals on both sides of the midline, with a distance L between adjacent horizontal lines; Step 4: Measure the distances l1, l2...l between the intersections of each horizontal line with the arc of the first tube mold and the arc of the first tube. n ; Step 5: Draw the second tube with diameter D to be reverse-engineered on the dividing line of the first tube-making mold, and make the outermost end of the second tube coincide with the lowest point of the indentation of the first tube-making mold; Step 6: Mark the intersection points of the n horizontal lines and the arc of the second pipe, then mark the intersection points along the horizontal lines at intervals l1, l2...l as in Step 4. n The corresponding position is offset to the recessed position of the first tube-making mold; Step 7: Connect the offset intersection surfaces from Step 6 using 3D software to obtain the reverse mold concave curve; Step 8: Use the boss function to grow the solid into a cylindrical shape using the mold, and then use the concave curve of the mold in Step 7 to rotate and cut off the solid to obtain the reverse second tube mold.

2. The method for manufacturing a tube-making mold according to claim 1, characterized in that: In step 2, d is 105 mm.

3. The method for manufacturing a tube-making mold according to claim 1, characterized in that: In step 3, L is 5mm.

4. The method for manufacturing a tube-making mold according to claim 1, characterized in that: In step 4, D is 105.6 mm.

5. The method for manufacturing a tube-making mold according to claim 1, characterized in that: The 3D software used in steps 1 and 7 is SolidWorks software.

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