A pipe processing method and multi-point punching tool thereof

Abstract

The present application relates to a pipe processing method and a multi-point blanking tool thereof, a multi-point blanking tool comprising a substrate and a blade portion, a plurality of blade portions being arranged in the same direction on one side of the substrate, the blade portion comprising a blade tip, an inner blade surface, an outer blade surface, a blade back surface and a cutting surface, the inner blade surface and the outer blade surface being respectively located on both sides of the blade tip, the blade back surface being located between the inner blade surface and the outer blade surface, the edges on both sides of the blade back surface respectively coinciding with the edges of the inner blade surface and the outer blade surface, the cutting surface being located between the inner blade surface and the outer blade surface and away from the blade back surface, and a first acute angle being formed between the cutting surface and the inner blade surface. The present application has the effect of improving the processing efficiency of pipes.

Description

Technical Field

[0001] The present application relates to the technical field of pipe processing, and in particular to a pipe processing method and a multi-point punching tool thereof. Background Art

[0002] like Figure 1 A pipe fitting is shown, and a connecting piece is provided on the side wall of the pipe fitting, wherein the connecting piece is connected to the side wall of the pipe fitting to form a ring shape.

[0003] In the related technology, Figure 1 The pipe fittings in the pipeline need to connect the ends of the connectors to the side walls of the pipe fittings by welding.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a defect in that the method of welding the connection link to the pipe has low processing efficiency. Summary of the invention

[0005] In order to improve the processing efficiency of pipe fittings, the present application provides a multi-point punching tool.

[0006] In the first aspect, the present application provides a multi-point punching tool, which adopts the following technical solution:

[0007] A multi-point punching tool comprises a substrate and a blade portion, wherein a plurality of the blade portions are arranged in the same direction on one side of the substrate, wherein the blade portion comprises a blade tip, an inner blade surface, an outer blade surface, a blade back surface and a cutting surface, wherein the inner blade surface and the outer blade surface are respectively located on both sides of the blade tip, the blade back surface is located between the inner blade surface and the outer blade surface, and the edges on both sides of the blade back surface respectively coincide with the edges of the inner blade surface and the outer blade surface, the cutting surface is located between the inner blade surface and the outer blade surface and away from the blade back surface, and a first acute angle is formed between the cutting surface and the inner blade surface.

[0008] By adopting the above technical solution, the tip of the blade first contacts the side wall of the double-tube fitting. After the tip of the blade pokes an opening in the double-tube fitting, the cutting surface of the blade gradually cuts the side wall of the double-tube fitting from the punctured opening until a straight line incision is made on the side wall of the double-tube fitting. Then the side wall with the straight line incision is cut off to form an annular connector on the side wall of a single-channel fitting. By the above method, since the opening is first made in the side wall of the double-tube fitting by the tip of the blade, deformation of the side wall of the double-tube fitting during cutting can be avoided when the cutting surface is cut later.

[0009] Preferably, the inner blade surface coincides with a side surface of the substrate.

[0010] Preferably, the first acute angle is 60° to 70°.

[0011] Preferably, a second acute angle is formed between the inner blade surface and the outer blade surface, and the second acute angle is 30° to 40°.

[0012] Preferably, a third acute angle is formed between the back surface of the knife and a vertical plane, and the third acute angle is 20° to 25°.

[0013] Preferably, a first force-releasing groove is provided on the side surface of the substrate between two adjacent blade portions.

[0014] By adopting the above technical solution, the first stress-relieving groove can weaken the stress concentration at the connection between the blade portion and the substrate, thereby reducing the possibility of fracture at the connection between the blade portion and the substrate.

[0015] Preferably, the back surface of the blade portion located at one end of the substrate is connected to a side surface of the substrate, and a second force unloading groove is provided between the back surface of the blade and the side surface of the substrate.

[0016] By adopting the above technical solution, the second stress-relieving groove can weaken the stress concentration at the connection between the back surface of the blade and the side surface of the substrate, thereby reducing the possibility of fracture at the connection between the back surface of the blade and the substrate.

[0017] Preferably, between two adjacent blade portions, a perpendicular line passing through the blade tip of one blade portion passes through the cutting surface of the other blade portion.

[0018] By adopting the above technical solution, adjacent blade portions can completely cut off the side surface of the pipe when cutting the side surface of the pipe, thereby avoiding the situation where the side surface of the pipe between the adjacent blade portions is not cut off.

[0019] In the second aspect, the present application provides a pipe processing method, which adopts the following technical solution:

[0020] A pipe processing method, characterized in that the method comprises:

[0021] Step 1: Make an incision on the side wall of one channel in the double pipe fitting perpendicular to the length direction of the double pipe fitting;

[0022] Step 2: Place the double pipe fittings on the tooling;

[0023] Step 3: Use a multi-point punching tool to punch perpendicularly to the side wall of the double tube fitting to cut off the cut side wall of the double tube fitting.

[0024] By adopting the above technical solution, the one-piece pipe fittings and connectors formed after cutting off the side surfaces of the double pipe fittings can be processed quickly and efficiently.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] (1) The blade tip of the blade first contacts the side wall of the double-tube fitting. After the blade tip pokes an opening in the double-tube fitting, the cutting surface of the blade gradually cuts the side wall of the double-tube fitting from the poke opening until a straight line incision is made on the side wall of the double-tube fitting. Then, the side wall with the straight line incision is cut off to form an annular connector on the side wall of a single-channel fitting.

[0027] (2) Since a cut is first made in the side wall of the double pipe by the knife tip, deformation of the side wall of the double pipe can be avoided during subsequent cutting of the cutting surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of a pipe fitting;

[0029] Figure 2 It is a schematic diagram of the structure of the multi-point punching tool of the present application;

[0030] Figure 3 It is a front view of the multi-point punching tool of the present application;

[0031] Figure 4 It is a side view of the multi-point punching tool of the present application;

[0032] Figure 5 This is a schematic diagram of the process of the pipe processing method of this application Figure 1 ;

[0033] Figure 6 This is a schematic diagram of the process of the pipe processing method of this application Figure 2 .

[0034] Explanation of the reference numerals: 1. substrate; 2. blade portion; 21. blade tip; 22. inner blade surface; 23. outer blade surface; 24. back surface of the blade; 25. cutting surface; 3. first unloading groove; 4. second unloading groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The present application embodiment discloses a multi-point punching tool. Figure 2The multi-point punching tool comprises a substrate 1 and a blade portion 2, and a plurality of blade portions 2 are arranged on one side of the substrate 1 in the same direction. The substrate 1 is a flat rectangular parallelepiped. The blade portion 2 comprises a blade tip 21, an inner blade surface 22, an outer blade surface 23, a blade back surface 24 and a cutting surface 25. The inner blade surface 22 and the outer blade surface 23 are respectively located on both sides of the blade tip 21, the blade back surface 24 is located between the inner blade surface 22 and the outer blade surface 23, and the edges on both sides of the blade back surface 24 coincide with the edges of the inner blade surface 22 and the edges of the outer blade surface 23 respectively. The cutting surface 25 is located between the inner blade surface 22 and the outer blade surface 23 and deviates from the blade back surface 24. A first acute angle is formed between the cutting surface 25 and the inner blade surface 22, and the first acute angle is 60° to 70°. The cutting edge of the cutting surface 25 is inclined, and the blade tip 21 is the lowest point of the cutting edge. A first unloading groove 3 is provided on the side of the substrate 1 between two adjacent blade portions 2. The bottom surface of the first unloading groove 3 is in an arc shape. The back surface 24 of the blade portion 2 located at one end of the substrate 1 is connected to a side surface of the substrate 1, and a second unloading groove 4 is provided between the back surface 24 and the side surface of the substrate 1. The bottom surface of the second unloading groove 4 is in an arc shape. The first unloading groove 3 and the second unloading groove 4 can weaken the stress concentration between the blade portion 2 and the substrate 1, and reduce the possibility of the blade portion 2 breaking.

[0037] Reference Figure 3 , a third acute angle c is formed between the back surface 24 of the blade and a vertical plane, and the third acute angle c is 20° to 25°. Between two adjacent blade portions 2, a vertical line d passing through the tip 21 of one blade portion 2 passes through the cutting surface 25 of the other blade portion 2. When the adjacent blade portions 2 cut the side surface of the pipe, the side surface of the pipe can be completely cut off, avoiding the situation where the side surface of the pipe between the adjacent blade portions 2 is not cut off.

[0038] Reference Figure 4 A second acute angle b is formed between the inner blade surface 22 and the outer blade surface 23, and the second acute angle b is 30° to 40°.

[0039] The present application also discloses a pipe processing method, Figure 5 , cut an incision perpendicular to the length direction of the double pipe fitting on the side wall of a channel in the double pipe fitting, and the incision passes through the three side walls of the double pipe fitting respectively.

[0040] See also Figure 6 , place the double pipe fitting on the tooling, use the multi-point punching tool to punch perpendicularly to the side wall of the double pipe fitting, and cut off the side wall of the double pipe fitting with the cut. Finally, an integrally formed pipe fitting with a connector is formed.

[0041] Since a cut is first made in the side wall of the double tube by the knife tip 21 , when the side wall of the double tube is cut by the subsequent cutting surface 25 , deformation of the side wall of the double tube can be avoided during cutting.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-point punching tool, characterized in that: The invention comprises a base plate (1) and a blade portion (2), wherein a plurality of blade portions (2) are arranged on one side of the base plate (1) in the same direction, wherein the blade portion (2) comprises a blade tip (21), an inner blade surface (22), an outer blade surface (23), a blade back surface (24) and a cutting surface (25), wherein the inner blade surface (22) and the outer blade surface (23) are respectively located on both sides of the blade tip (21), the inner blade surface (22) overlaps with a side surface of the base plate (1), and the blade back surface (24) is located A second acute angle is formed between the inner blade surface (22) and the outer blade surface (23), and the second acute angle is 30° to 40°. The edges on both sides of the back surface (24) of the blade respectively coincide with the edges of the inner blade surface (22) and the edges of the outer blade surface (23). A third acute angle is formed between the back surface (24) of the blade and a vertical plane, and the third acute angle is 20° to 25°. The cutting surface (25) is located on the inner blade surface (22). and the outer blade surface (23) and away from the blade back surface (24), the cutting edge of the cutting surface (25) is inclined, the blade tip (21) is the lowest point of the cutting edge, a first acute angle is formed between the cutting surface (25) and the inner blade surface (22), the first acute angle is 60° to 70°, the blade back surface (24) of the blade portion (2) located at one end of the substrate (1) is connected to a side surface of the substrate (1), and a first acute angle is provided between the blade back surface (24) and the side surface of the substrate (1). A second unloading groove (4), the bottom surface of the second unloading groove (4) is in an arc shape, between two adjacent blade portions (2), a vertical line passing through the tip (21) of one blade portion (2) passes through the cutting surface (25) of the other blade portion (2), and a first unloading groove (3) is provided on the side surface of the substrate (1) between the two adjacent blade portions (2), the bottom surface of the first unloading groove (3) is in an arc shape, and the adjacent blade portions (2) completely cut off the side surface of the pipe when cutting the side surface of the pipe.

2. A pipe processing method, characterized in that: The pipe fitting is processed by the multi-point punching tool according to claim 1, and the method comprises: Step 1: Make an incision on the side wall of one channel in the double pipe fitting perpendicular to the length direction of the double pipe fitting; Step 2: Place the double pipe fittings on the tooling; Step 3: Use a multi-point punching tool to punch perpendicularly to the side wall of the double tube fitting to cut off the cut side wall of the double tube fitting.

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