Steel pipe machining method
By cutting side holes in the middle of the main pipe and welding the secondary pipe, the problem of the difficulty in manufacturing six-way pipes with existing technology was solved, and the multi-directional connection effect of steel pipes was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-01
- Publication Date
- 2026-04-07
AI Technical Summary
Existing steel pipe processing methods make it difficult to manufacture six-way pipes.
By cutting side holes on both sides of the middle of the main pipe, fixing the secondary pipe on the processing device, cutting a central hole in the middle of the secondary pipe, and then pressing the secondary pipe on both sides of the main pipe to overlap and weld the side holes and central holes, a six-way pipe is made.
This technology enables six-way connections for steel pipes, expanding the application range of steel pipes.
Smart Images

Figure CN121798299A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of steel pipes, and more specifically to a method for processing steel pipes. Background Technology
[0002] Steel pipe is a tubular product made of steel. It possesses high strength and corrosion resistance, and is widely used in construction, machinery manufacturing, petrochemicals, and automobile manufacturing. Steel pipes can be classified into various types according to different manufacturing processes and materials, including seamless steel pipes, spiral welded pipes, and straight seam welded pipes. Steel pipes have advantages such as light weight, high strength, corrosion resistance, and ease of processing, and are widely used in both industrial production and civil applications. Sometimes, it is necessary for steel pipes to have six-way connectivity, but existing steel pipe processing methods do not easily produce six-way pipes. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, the present invention provides a steel pipe processing method, which has the advantage of being able to easily produce six-way pipes.
[0004] A method for processing steel pipes includes the following steps:
[0005] S1: Secure the main body to the processing device;
[0006] S2: Side holes are cut on both the front and rear sides of the middle section of the main tube using a machining device;
[0007] S3: Fix the two secondary tubes onto the processing device in sequence. When the secondary tubes are fixed onto the processing device, cut a positive hole in the middle of the secondary tubes.
[0008] S4: Press the two auxiliary pipes onto the front and rear sides of the middle of the main pipe respectively, so that the side hole and the main hole coincide;
[0009] S5: Weld the two auxiliary pipes to the middle of the main pipe to form a six-way pipe.
[0010] In the steel pipe processing method, a side hole is cut on one side of the middle of the main pipe, and a secondary pipe is fixed in the middle of the main pipe to form a four-way pipe.
[0011] Both the main pipe and the auxiliary pipe are steel pipes. Attached Figure Description
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.
[0013] Figure 1 This is a flowchart of a steel pipe processing method;
[0014] Figure 2 Schematic diagram of the processing device Figure 1 ;
[0015] Figure 3 Schematic diagram of the processing device Figure 2 ;
[0016] Figure 4 Schematic diagram of the processing device Figure 3 ;
[0017] Figure 5 Main frame structure diagram Figure 1 ;
[0018] Figure 6 Main frame structure diagram Figure 2 ;
[0019] Figure 7 Schematic diagram of the beam structure Figure 1 ;
[0020] Figure 8 Schematic diagram of the beam structure Figure 2 ;
[0021] Figure 9 This is a schematic diagram of the frame structure;
[0022] Figure 10 Schematic diagram of the bottom strip structure Figure 1 ;
[0023] Figure 11 Schematic diagram of the bottom strip structure Figure 2 .
[0024] In the diagram: Main frame 101; Central column 102; Portal leg 103; Round rod 104; Conical block 105; Support rod 106; Arc rod 107;
[0025] 201 Crossbeam; 202 Square column; 203 Motor base plate; 204 Motor; 205 Connecting strip; 206 Cylinder; 207 Cutting tool; 208 Threaded column; 209 Mounting base;
[0026] Frame 301; Fixing sleeve 302; Sliding sleeve 303;
[0027] Bottom strip 401; track 402; slide block 403; hand screw 404; conical block two 405; screw 406; conical block three 407;
[0028] Main pipe 501; side hole 502; auxiliary pipe 503; front hole 504. Detailed Implementation
[0029] A method for processing steel pipes includes the following steps:
[0030] S1: Secure the main pipe 501 to the processing device;
[0031] S2: Side holes 502 are cut on both the front and rear sides of the middle part of the main pipe 501 using a machining device;
[0032] S3: Fix the two secondary tubes 503 onto the processing device in sequence. When the secondary tubes 503 are fixed onto the processing device, cut a positive hole 504 in the middle of the secondary tubes 503.
[0033] S4: Press the two auxiliary tubes 503 onto the front and rear sides of the middle of the main tube 501 respectively, so that the side hole 502 and the main hole 504 overlap.
[0034] S5: Weld the two auxiliary pipes 503 to the middle of the main pipe 501 to form a six-way pipe.
[0035] In the steel pipe processing method, a side hole 502 is cut on one side of the middle of the main pipe 501, and a secondary pipe 503 is fixed in the middle of the main pipe 501 to form a four-way pipe.
[0036] Both the main pipe 501 and the auxiliary pipe 503 are steel pipes.
[0037] like Figure 5-6 As shown, this example can achieve the effect of fixing the main pipe 501 of different sizes between two conical blocks 105.
[0038] Since the processing device includes a main frame 101, round rods 104 are slidably connected to both ends of the main frame 101. Conical blocks 105 are welded to the opposite ends of the two round rods 104. The two round rods 104 are driven to slide by a hydraulic cylinder. The two round rods 104 can slide closer or further away through the round rods 104 on them. When the two round rods 104 are close, they can be inserted into the two ends of the main pipe 501 respectively, thereby fixing the main pipes 501 of different sizes between the two conical blocks 105, which makes it convenient to open side holes 502 on the main pipe 501.
[0039] like Figure 5-6 As shown, this example can achieve the effect of ensuring that the main pipe 501 is horizontally clamped between the two conical blocks 105.
[0040] Since the left and right ends of the main frame 101 are connected to the portal legs 103 by screws, the middle of the main frame 101 is vertically slidably connected to the central column 102, the upper part of the central column 102 is welded with the support rod 106, and the two ends of the support rod 106 are provided with arc rods 107. When the central column 102 slides vertically, it drives the support rod 106 and the two arc rods 107 to rise and fall, thereby driving the support rod 106 and the two arc rods 107 to press against the lower side of the main pipe 501, ensuring that the main pipe 501 is horizontally clamped between the two conical blocks 105.
[0041] like Figure 5-8 As shown, this example can achieve the effect of opening two side holes 502 on the main pipe 501.
[0042] Since the processing device also includes a motor base plate 203, a motor 204 is connected to the motor base plate 203 by screws, a connecting bar 205 is provided on the upper part of the cylinder 206, the output shaft of the motor 204 is connected to the connecting bar 205, and multiple cutting blades 207 are arranged in a ring at the lower part of the cylinder 206. The cylinder 206 is located above the main frame 101. The motor 204 can drive the connecting bar 205 and the cylinder 206 to rotate around the axis of the motor 204, thereby driving the multiple cutting blades 207 to rotate. The multiple cutting blades 207 rotate and move downward, cutting towards the front and rear sides of the middle part of the main tube 501, thereby opening two side holes 502 on the main tube 501.
[0043] like Figure 7-8 As shown, this example can achieve the effect of simultaneously opening two side holes 502 on the main pipe 501.
[0044] Since there are two motor base plates 203, and the mounting base 209 has multiple threaded posts 208, each with a nut threaded to its upper part, the motor base plates 203 are connected to the mounting base 209 via the threaded posts 208. This allows two motor base plates 203 to be mounted on the mounting base 209, which in turn allows two cylinders 206 to be mounted on the mounting base 209. The two cylinders 206 move downwards while rotating simultaneously, thus creating two side holes 502 on the main pipe 501. Furthermore, the motor base plates 203 are easily disassembled from the mounting base 209, facilitating the replacement of cylinders 206 of different sizes.
[0045] like Figure 7-8 As shown, this example can achieve the effect of driving two cylinders 206 to rise and fall.
[0046] Since a square column 202 is welded to the upper side of the mounting base 209, the square column 202 is vertically slidably connected to the crossbeam 201. The square column 202 is driven to slide vertically by a hydraulic cylinder. The square column 202 can slide vertically on the crossbeam 201, thereby driving the mounting base 209 and the two threaded columns 208 to slide vertically, thereby driving the two cylinders 206 to rise and fall.
[0047] like Figure 7-9 As shown, this example can achieve the effect of creating a positive hole 504 on the secondary pipe 503.
[0048] Since the processing device also includes a stand 301, the lower end of the stand 301 is connected to one of the portal legs 103 in the front-back direction, and the crossbeam 201 is slidably connected to the upper part of the stand 301 in the left-right direction. Both the upper and lower ends of the stand 301 are connected to fastening screws by threads. The two fastening screws press on the crossbeam 201 and the portal leg 103 respectively. The crossbeam 201 can move left and right on the stand 301, thereby changing the left and right position of the two cylinders 206. When needed, the two cylinders 206 can also be removed. The stand 301 can move back and forth on the portal leg 103, thereby driving the cylinders 206 to move back and forth and adjusting the front and back position of the cylinders 206. The two auxiliary tubes 503 are fixed between the two conical blocks 105 in sequence, and then the cylinder 206 is adjusted to the upper part of the middle of the auxiliary tube 503. At this time, a positive hole 504 can be opened on the auxiliary tube 503.
[0049] like Figure 1-11 As shown, this example can achieve the effect of making a six-way pipe.
[0050] A bottom strip 401 is provided at the lower center of the main frame 101, and a front-to-back track 402 is provided on the bottom strip 401. Slide seats 403 are slidably connected to both ends of the track 402. A second conical block 405 is welded to the upper side of each slide seat 403. A screw 406 is welded to the upper part of the second conical block 405, and a third conical block 407 is inserted into the upper part of the screw 406. A nut is threaded onto the upper part of the screw 406. Hand screws 404 are threaded onto both ends of the bottom strip 401. Two hand screws 404 press against the outer sides of the two slide seats 403, respectively, thus fixing the two auxiliary tubes 503 to the two sets of third conical blocks 407 and the conical blocks. Between the two cone blocks 405, the cone block 407 is pressed against the secondary tube 503 by rotating the nut, thereby fixing the two secondary tubes 503 on the upper side of the two cone blocks 405 respectively. Then, the two hand screws 404 are rotated to press against the two slide blocks 403 respectively, causing the two slide blocks 403 to slide closer to each other. The main tube 501 is placed between the two cone blocks 105, thereby causing the two secondary tubes 503 to press against the front and rear sides of the middle part of the main tube 501 respectively. The positive hole 504 on the secondary tube 503 coincides with the side hole 502 on the main tube 501. At this time, the two secondary tubes 503 are manually welded to the front and rear sides of the middle part of the main tube 501 by the welder to form a six-way pipe.
Claims
1. A method for processing steel pipes, characterized in that, Includes the following steps: S1: Secure the main tube (501) to the processing device; S2: Side holes (502) are cut on both the front and rear sides of the middle part of the main tube (501) using a machining device; S3: Fix the two secondary tubes (503) onto the processing device in sequence. When the secondary tubes (503) are fixed onto the processing device, cut a positive hole (504) in the middle of the secondary tubes (503). S4: Press the two auxiliary tubes (503) onto the front and rear sides of the middle of the main tube (501) respectively, so that the side hole (502) and the main hole (504) overlap; S5: Weld the two auxiliary pipes (503) to the middle of the main pipe (501) to form a six-way pipe.
2. The steel pipe processing method according to claim 1, characterized in that: In the steel pipe processing method, a side hole (502) is cut on one side of the middle part of the main pipe (501), and a secondary pipe (503) is fixed in the middle part of the main pipe (501) to form a four-way pipe.
3. The steel pipe processing method according to claim 1, characterized in that: Both the main pipe (501) and the auxiliary pipe (503) are steel pipes.
4. The steel pipe processing method according to claim 1, characterized in that: The processing device includes a main frame (101), with round rods (104) slidably connected to both the left and right ends of the main frame (101). Conical blocks (105) are fixed to the opposite ends of the two round rods (104), and the two round rods (104) are driven to slide by hydraulic cylinders.
5. A steel pipe processing method according to claim 4, characterized in that: The main frame (101) is fixed with portal legs (103) at both ends. A central column (102) is vertically slidably connected to the middle of the main frame (101). A support rod (106) is fixed to the upper part of the central column (102). Arc rods (107) are provided at both ends of the support rod (106).
6. A steel pipe processing method according to claim 5, characterized in that: The processing device also includes a motor base plate (203), on which a motor (204) is fixed. A connecting strip (205) is provided on the upper part of the cylinder (206), and the output shaft of the motor (204) is connected to the connecting strip (205). Multiple cutting blades (207) are arranged in a ring on the lower part of the cylinder (206), and the cylinder (206) is located above the main frame (101).
7. A steel pipe processing method according to claim 6, characterized in that: Two motor base plates (203) are provided. Multiple threaded posts (208) are provided on the mounting base (209). Nuts are threadedly connected to the upper part of each threaded post (208). The motor base plate (203) is connected to the mounting base (209) through the threaded posts (208).
8. A steel pipe processing method according to claim 7, characterized in that: A square column (202) is fixed on the upper side of the mounting base (209). The square column (202) is vertically slidably connected to the crossbeam (201). The square column (202) is driven to slide vertically by a hydraulic cylinder.
9. A steel pipe processing method according to claim 8, characterized in that: The processing device also includes a stand (301), the lower end of which is connected to one of the portal legs (103) in the front-to-back direction, and a crossbeam (201) is slidably connected to the upper part of the stand (301) in the left-to-right direction. Both the upper and lower ends of the stand (301) are connected to fastening screws by threads, and the two fastening screws are pressed on the crossbeam (201) and the portal leg (103) respectively.
10. A steel pipe processing method according to claim 9, characterized in that: The main frame (101) has a bottom strip (401) in the middle of its lower side. The bottom strip (401) has a track (402) in the front-back direction. The front and rear ends of the track (402) are slidably connected to slide blocks (403). Each slide block (403) has a second conical block (405) fixed on its upper side. The upper part of the second conical block (405) is fixed with a screw (406). The upper part of the screw (406) is inserted with a third conical block (407). The upper part of the screw (406) is threaded with a nut. The front and rear ends of the bottom strip (401) are threaded with hand screws (404). The two hand screws (404) are pressed on the outside of the two slide blocks (403) respectively.