A positioning type pipe cutting device for stainless steel pipe

Abstract

The application belongs to the technical field of pipe cutting, and particularly relates to a positioning pipe cutting device for stainless steel pipe fittings, which comprises a rack, a lower positioning mechanism and an upper positioning mechanism. A lifting cutting mechanism is installed above the upper positioning mechanism. The lower positioning mechanism comprises a movable assembly and a transmission roller. The upper positioning mechanism comprises a pushing assembly and a positioning roller. Through grooves are formed in the interiors of the two positioning rollers. The cutter of the lifting cutting mechanism is directly above the two through grooves. After the pipe fitting is placed above the two transmission rollers, the component frame can drive the pushing assembly and the positioning roller to descend until the two positioning rollers contact the outer side of the pipe fitting. The lifting cutting mechanism and the cutter can simultaneously descend. The cutter contacts the rotating pipe fitting after passing through the through groove, cuts the pipe fitting, and the pipe fitting is further clamped and positioned by the upper and lower positioning mechanisms, so that the cutting quality of the pipe fitting is not damaged.

Description

Technical Field

[0001] This invention belongs to the field of pipe cutting, specifically a positioning pipe cutting device for stainless steel pipes. Background Technology

[0002] During the processing and production of stainless steel pipe fittings, the pipe needs to be cut into specified lengths. This cutting process usually adopts a double roller drive mode, which uses the friction between the rotating roller and the outer wall of the pipe to drive the pipe to rotate at a uniform speed, while the high-speed rotating cutting tool descends vertically. The cutting is completed in the process of the pipe rotating once. This processing method can effectively increase the cutting speed of stainless steel pipe fittings.

[0003] A patent document with announcement number CN221952443U discloses an automotive stainless steel pipe cutting device, which includes a support groove seat, a screw slider, and a cutting seat. The positioning guide post is installed in the longitudinal groove end of the groove block seat, and the seat block with the cutting saw is welded onto the slider body. The slider body is threaded onto the adjusting screw in the transverse groove end.

[0004] In the processing and production of stainless steel pipe fittings, the cutting process is a key step in forming pipe fittings of the required length. The traditional cutting method uses rotating rollers to drive the pipe fitting to rotate while the cutting tool descends to complete the cutting. In this cutting method, the pipe fitting is positioned only by two rotating rollers that support and drive the pipe fitting to rotate. This design is not convenient for four-point positioning through the upper and lower clamping mechanism, thereby effectively eliminating the gap between the pipe fittings, enhancing the resistance to cutting forces, and preventing the thin-walled pipe fittings from deforming and jumping.

[0005] Therefore, the present invention provides a positioning type pipe cutting device for stainless steel pipe fittings to solve the problems mentioned in the background art. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problem is: the present invention provides a positioning type pipe cutting device for stainless steel pipe fittings, including a frame, a lower positioning mechanism installed above the frame, an upper positioning mechanism installed vertically above the frame, and a lifting cutting mechanism installed vertically above the upper positioning mechanism. The lower positioning mechanism includes two movable components that move above the frame. Each of the two movable components has a drive roller rotatably mounted inside. The rotation of the two drive rollers drives the stainless steel pipe placed above to rotate. The upper positioning mechanism includes a component frame that is lifted and installed above the frame, and four pusher components that are movably installed on both sides of the inner wall of the component frame. A positioning roller is rotatably mounted between every two pusher components. The positioning roller is directly above the corresponding drive roller. The positioning roller has the same diameter and length as the drive roller. A through groove is formed inside the two positioning rollers. The cutter of the lifting cutting mechanism is directly above the two through grooves. The thickness of the through groove is greater than the thickness of the cutter of the lifting cutting mechanism. A mechanism for cleaning impurities on the outside of the cutting cutter is provided inside the through groove.

[0007] Preferably, the movable component includes a telescopic mechanism fixedly installed on the side above the frame and a movable frame movably installed on the top of the frame, the transmission roller being rotatably installed inside the movable frame, and a motor being installed on the side of the movable frame.

[0008] Preferably, the transmission roller has a mating ring groove inside, which is located directly below the corresponding through groove. The thickness of the mating ring groove is less than the thickness of the through groove, and the thickness of the mating ring groove is greater than the thickness of the cutting tool of the lifting and cutting mechanism.

[0009] Preferably, the push-type component includes a displacement plate slidably mounted on the inner wall of the component frame and a telescopic mechanism two fixedly mounted on the side of the displacement plate, and the positioning roller is movably mounted inside two corresponding displacement plates.

[0010] Preferably, the lifting and cutting mechanism includes a telescopic mechanism three installed above the component frame, a drive frame installed above the telescopic mechanism three, and a cutting tool rotatably installed inside the drive frame.

[0011] Preferably, the thickness of the cutting tool is less than the thickness of the through groove, and the cutting tool and the center of the through groove are on the same vertical plane.

[0012] Preferably, two limiting components are installed on both sides of the inner wall of the component frame. The two limiting components are used to further stabilize the rotation of the corresponding positioning roller.

[0013] Preferably, the limiting component includes a telescopic plate fixedly installed on the side of the inner wall of the component frame, and an arc-shaped strip is fixedly installed on one end of the telescopic plate facing the through groove.

[0014] Preferably, the through groove has a rotating annular groove inside, the arc-shaped strip is rotatably installed inside the rotating annular groove, and the through groove is provided with a cleaning mechanism.

[0015] Preferably, the cleaning mechanism includes cleaning components installed through both sides of the inner wall of the groove, the diameter of which is smaller than the diameter of the rotating annular groove.

[0016] The beneficial effects of this invention are as follows: 1. The positioning pipe cutting device for stainless steel pipe fittings described in this invention involves placing the pipe fitting above two drive rollers. The component frame can drive the push-type assembly and positioning rollers to descend until the two positioning rollers contact the outer side of the pipe fitting. That is, the two drive rollers and the two positioning rollers complete the four-point positioning of the pipe fitting. At this time, the lifting cutting mechanism and the set cutter can descend simultaneously. After passing through the through groove, the cutter contacts the rotating pipe fitting and cuts it. The lower positioning mechanism and the upper positioning mechanism can further clamp and position the pipe fitting to avoid damage to the cutting quality of the pipe fitting.

[0017] 2. The positioning pipe cutting device for stainless steel pipe fittings described in this invention can adjust the horizontal distance between two positioning rollers and two transmission rollers by setting up a movable component and a push component. Furthermore, the vertical distance between the two positioning rollers and the corresponding transmission rollers can be adjusted by raising and lowering the upper positioning mechanism. Therefore, it is suitable for stainless steel pipe fittings of different diameters. That is, this device can clamp stainless steel pipe fittings of different diameters at four points, increasing the cutting quality. After the cutting tool of the lifting cutting mechanism achieves lifting and cutting, the two sides of the cutting tool will be intermittently inside the through groove when the cutting tool rotates, and will be cleaned by the cleaning mechanism inside the through groove. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional view of the entire invention in its first state; Figure 2 This is a three-dimensional schematic diagram of the lower positioning mechanism and the upper positioning mechanism in this invention; Figure 3 This is a three-dimensional schematic diagram of the lower positioning mechanism in this invention; Figure 4 This is a three-dimensional schematic diagram of the upper positioning mechanism in this invention; Figure 5 This is a three-dimensional schematic diagram of the positioning roller in this invention; Figure 6 This is a three-dimensional schematic diagram of the lifting and cutting mechanism in this invention; Figure 7 This is a three-dimensional schematic diagram of the overall second state in this invention.

[0020] In the diagram: 1. Frame; 2. Lower positioning mechanism; 21. Movable component; 211. Telescopic mechanism one; 212. Movable frame; 22. Drive roller; 221. Matching ring groove; 3. Upper positioning mechanism; 31. Component frame; 32. Pushing component; 321. Displacement plate; 322. Telescopic mechanism two; 33. Positioning roller; 331. Through groove; 3311. Rotating ring groove; 3312. Cleaning component; 34. Limiting component; 341. Arc strip; 342. Telescopic plate; 4. Lifting and cutting mechanism; 41. Drive frame; 42. Telescopic mechanism three; 43. Cutting tool. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1-7 As shown, an embodiment of the present invention provides a positioning type pipe cutting device for stainless steel pipe fittings, including a frame 1, a lower positioning mechanism 2 installed above the frame 1, an upper positioning mechanism 3 installed above the frame 1, and a lifting cutting mechanism 4 installed above the upper positioning mechanism 3. The lower positioning mechanism 2 includes two movable components 21 that move above the frame 1. Each of the two movable components 21 has a drive roller 22 rotatably mounted inside. The rotation of the two drive rollers 22 drives the stainless steel pipe placed above to rotate. The upper positioning mechanism 3 includes a component frame 31 that is lifted and installed above the frame 1 and four push components 32 that are movably installed on both sides of the inner wall of the component frame 31. A positioning roller 33 is rotatably mounted between each pair of push components 32. The positioning roller 33 is directly above the corresponding drive roller 22. The positioning roller 33 has the same diameter and length as the drive roller 22. A through groove 331 is opened through the interior of the two positioning rollers 33. The cutter of the lifting cutting mechanism 4 is directly above the two through grooves 331. The thickness of the through groove 331 is greater than the thickness of the cutter of the lifting cutting mechanism 4. A mechanism for cleaning impurities on the outside of the cutting cutter 43 is provided inside the through groove 331.

[0023] Specifically, in this device, when stainless steel pipe fittings need to be cut, the pipe fitting is inserted between the upper positioning mechanism 3 and the lower positioning mechanism 2, so that the pipe fitting is placed above the two transmission rollers 22. At this time, the rotation of the two transmission rollers 22 can drive the pipe fitting to rotate. In the conventional technology, the lifting cutting mechanism 4 is driven to lower its blade to complete the cutting. However, this method does not perform four-point positioning, and it cannot effectively eliminate the gap between the pipe fittings during the cutting process, enhance the cutting resistance, and prevent the thin-walled pipe fittings from deforming and jumping. In this device, after the pipe fitting is placed above the two transmission rollers 22, due to the lifting setting of the upper positioning mechanism 3, the component frame 31 can drive the push component 32 and the positioning rollers 33 to descend until the two positioning rollers 33 contact the outside of the pipe fitting. That is, at this time, the part of the pipe fitting between the lower positioning mechanism 2 and the upper positioning mechanism 3 simultaneously contacts the two transmission rollers 22 and the two positioning rollers 33. When the pipe fitting rotates, it can drive the two positioning rollers 33 to rotate. 3. The pipe is rotated, that is, the two transmission rollers 22 and the two positioning rollers 33 complete the four-point positioning of the pipe fitting. At this time, the lifting cutting mechanism 4 and the set cutter can descend simultaneously. After the cutter passes through the through groove 331, it contacts the rotating pipe fitting and cuts it. The lower positioning mechanism 2 and the upper positioning mechanism 3 can further clamp and position the pipe fitting to avoid damage to the cutting quality. In this device, the movable component 21 and the push component 32 can be used to adjust the horizontal distance between the two positioning rollers 33 and the horizontal distance between the two transmission rollers 22. The vertical distance between the two positioning rollers 33 and the corresponding transmission rollers 22 can be adjusted by the lifting of the upper positioning mechanism 3. Therefore, it is suitable for stainless steel pipe fittings of different diameters. That is, this device can clamp stainless steel pipe fittings of different diameters at four points, increasing the cutting quality. After the cutter of the lifting cutting mechanism 4 achieves lifting and cutting, the two sides of the cutter will be intermittently inside the through groove 331 when the cutter rotates, and are cleaned by the cleaning mechanism inside the through groove 331.

[0024] like Figures 2-4 and Figure 6 As shown, the movable component 21 includes a telescopic mechanism 211 fixedly installed on the upper side of the frame 1 and a movable frame 212 movably installed on the upper side of the frame 1. The transmission roller 22 is rotatably installed inside the movable frame 212, and a motor is installed on the side of the movable frame 212.

[0025] The transmission roller 22 has a mating ring groove 221 inside. The mating ring groove 221 is located directly below the corresponding through groove 331. The thickness of the mating ring groove 221 is less than the thickness of the through groove 331, and the thickness of the mating ring groove 221 is greater than the thickness of the cutting tool of the lifting and cutting mechanism 4.

[0026] The push-type component 32 includes a displacement plate 321 that is slidably mounted on the inner wall of the component frame 31 and a telescopic mechanism 322 that is fixedly mounted on the side of the displacement plate 321. The positioning roller 33 is movably mounted inside the two corresponding displacement plates 321.

[0027] The lifting and cutting mechanism 4 includes a telescopic mechanism 3 42 installed above the component frame 31, a drive frame 41 installed above the telescopic mechanism 3 42, and a cutting tool 43 rotatably installed inside the drive frame 41.

[0028] The thickness of the cutting tool 43 is less than the thickness of the through groove 331, and the center positions of the cutting tool 43 and the through groove 331 are on the same vertical plane.

[0029] Specifically, when it is necessary to adapt to stainless steel pipe fittings of different diameters, the movable frame 212 can be moved above the frame 1 by driving the telescopic mechanism 211, thereby changing the horizontal distance between the two transmission rollers 22. Inside the upper positioning mechanism 3, the telescopic mechanism 222 is extended and retracted, driving the two displacement plates 321 and the positioning rollers 33 inside them to move horizontally, thereby changing the horizontal distance between the two positioning rollers 33. Combined with the lifting and lowering of the upper positioning mechanism 3, the upper and lower clamping and four-point positioning of stainless steel pipe fittings of different diameters can be achieved. When cutting is required, the telescopic mechanism 322 is extended and retracted, driving the drive frame 41 and the cutting tool 43 to descend and carry out cutting.

[0030] Example 2: Figures 4-5 As shown in the first embodiment, another embodiment of the present invention is as follows: two limiting components 34 are installed on both sides of the inner wall of the component frame 31. The two limiting components 34 are used to further stabilize the rotation of the corresponding positioning roller 33.

[0031] The limiting component 34 includes a telescopic plate 342 fixedly installed on the inner wall side of the component frame 31, and an arc-shaped strip 341 is fixedly installed on one end of the telescopic plate 342 facing the through groove 331.

[0032] The through groove 331 has a rotating ring groove 3311 inside, and the arc-shaped bar 341 is rotatably installed inside the rotating ring groove 3311. The through groove 331 is equipped with a cleaning mechanism.

[0033] The cleaning mechanism includes cleaning components 3312 installed on both sides of the inner wall of the through groove 331, the diameter of which is smaller than the diameter of the rotating ring groove 3311.

[0034] Specifically, in this device, when the upper positioning mechanism 3 drives the two positioning rollers 33 to descend until the two positioning rollers 33 and the two transmission rollers 22 clamp the stainless steel pipe fitting from above and below, the two positioning rollers 33 rotate inside the component frame 31, that is, the position of the arc strip 341 remains unchanged, while the positioning rollers 33 drive the rotating annular groove 3311 to rotate. At this time, the arc strip 341 and the telescopic plate 342 will support the middle part of the positioning rollers 33, so that their horizontal height does not easily change when rotating. After the pipe fitting is clamped and positioned, the telescopic mechanism 342 extends and retracts, driving the cutting tool 43. As the cutting tool descends, it continues to descend above the two drive rollers 22 through the two through slots 331 and the two telescopic plates 342 to cut the rotating and positioned pipe. After cutting, the cutting tool 43 can rise through the telescopic mechanism 342. During the descent and ascent of the cutting tool 43, in conjunction with the high-speed rotation of the cutting tool 43, both sides of the cutting tool 43 will be intermittently contacted by the cleaning components 3312 set inside the two through slots 331, thereby completely cleaning the outside of the cutting tool 43 and avoiding affecting the subsequent cutting quality.

[0035] Working Principle: In this device, when stainless steel pipe fittings need to be cut, the pipe fitting is inserted between the upper positioning mechanism 3 and the lower positioning mechanism 2, so that the pipe fitting is placed above the two transmission rollers 22. At this time, the rotation of the two transmission rollers 22 drives the pipe fitting to rotate. In traditional technology, the lifting cutting mechanism 4 is driven to lower its blade to complete the cutting. However, this method does not perform four-point positioning, and it cannot effectively eliminate the gap between the pipe fittings during the cutting process, enhance the cutting resistance, and prevent the thin-walled pipe fittings from deforming and jumping. In this device, after the pipe fitting is placed above the two transmission rollers 22, due to the lifting setting of the upper positioning mechanism 3, the component frame 31 can drive the push component 32 and the positioning rollers. The pipe descends until the two positioning rollers 33 contact the outer side of the pipe. At this point, the pipe section between the lower positioning mechanism 2 and the upper positioning mechanism 3 simultaneously contacts the two drive rollers 22 and the two positioning rollers 33. As the pipe rotates, it drives the two positioning rollers 33 to rotate as well. Thus, the two drive rollers 22 and the two positioning rollers 33 complete four-point positioning of the pipe. At this time, the lifting and cutting mechanism 4 and the set cutter can descend simultaneously. The cutter, after passing through the through slot 331, contacts the rotating pipe and cuts it. The lower positioning mechanism 2 and the upper positioning mechanism 3, which clamp the pipe, further clamp and position it, preventing damage to the cutting quality. In this device, the movable component 21 and the pushing component 32 can be used for... The horizontal distance between the two positioning rollers 33 and the horizontal distance between the two transmission rollers 22 are adjusted. The vertical distance between the two positioning rollers 33 and the corresponding transmission rollers 22 can be adjusted by raising and lowering the upper positioning mechanism 3. Therefore, this device is suitable for stainless steel pipe fittings of different diameters, meaning it can clamp stainless steel pipe fittings of different diameters at four points, increasing cutting quality. After the cutting tool of the lifting cutting mechanism 4 performs lifting and cutting, the two sides of the tool will intermittently be inside the through groove 331 as it rotates, and will be cleaned by the cleaning mechanism inside the through groove 331. In this device, when the upper positioning mechanism 3 drives the two positioning rollers 33 to descend until the two positioning rollers 33 and the two transmission rollers 22 clamp the stainless steel pipe fitting vertically, both positioning rollers 33 are within the component frame 31. The internal rotation occurs, meaning the position of the arc-shaped strip 341 remains unchanged, while the positioning roller 33 drives the rotating annular groove 3311 to rotate. At this time, the arc-shaped strip 341 and the telescopic plate 342 support the middle part of the positioning roller 33, preventing its horizontal height from changing during rotation. After clamping and positioning the pipe fitting, the telescopic mechanism 342 extends and retracts, causing the cutting tool 43 to descend. The cutting tool 43 then continues to descend above the two transmission rollers 22 through the two through slots 331 and the two telescopic plates 342, cutting the rotating and positioned pipe fitting. After cutting, the cutting tool 43 can rise again through the extension and retraction of the telescopic mechanism 342. During the descent and ascent of the cutting tool 43, combined with its high-speed rotation...Both sides of the cutting tool 43 are intermittently contacted by cleaning components 3312 installed inside the two through slots 331, thus completely cleaning the outer side of the cutting tool 43 and avoiding affecting the subsequent cutting quality.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning type pipe cutting device for stainless steel pipe fittings, comprising a frame (1), wherein a lower positioning mechanism (2) is mounted on the upper part of the frame (1), characterized in that: An upper positioning mechanism (3) is also installed above the frame (1), and a lifting cutting mechanism (4) is installed above the upper positioning mechanism (3). The lower positioning mechanism (2) includes two movable components (21) movable above the frame (1). A drive roller (22) is rotatably mounted inside each of the two movable components (21). The rotation of the two drive rollers (22) drives the stainless steel pipe placed above to rotate. The upper positioning mechanism (3) includes a component frame (31) lifted and installed above the frame (1) and four pusher components (32) rotatably mounted on both sides of the inner wall of the component frame (31). A positioning roller (32) is rotatably mounted between every two pusher components (32). 3) The positioning roller (33) is located directly above the corresponding transmission roller (22). The positioning roller (33) and the transmission roller (22) have the same diameter and length. The two positioning rollers (33) have through slots (331) inside. The cutting tool of the lifting cutting mechanism (4) is located directly above the two through slots (331). The thickness of the through slots (331) is greater than the thickness of the cutting tool of the lifting cutting mechanism (4). The through slots (331) are provided with a mechanism for cleaning impurities on the outside of the cutting tool (43). Limiting components (34) are installed on both sides of the inner wall of the component frame (31). Two limiting components (34) are provided, and the two limiting components (34) are used to further stabilize the rotation of the corresponding positioning roller (33). The limiting component (34) includes a telescopic plate (342) fixedly installed on the inner wall side of the component frame (31), and an arc strip (341) is fixedly installed on one end of the telescopic plate (342) facing the through groove (331). The through groove (331) has a rotating annular groove (3311) inside, the arc-shaped strip (341) is rotatably installed inside the rotating annular groove (3311), and a cleaning mechanism is provided inside the through groove (331). The cleaning mechanism includes cleaning components (3312) installed on both sides of the inner wall of the through groove (331), the diameter of which is smaller than the diameter of the rotating annular groove (3311).

2. The positioning type pipe cutting device for stainless steel pipe fittings according to claim 1, characterized in that: The movable component (21) includes a telescopic mechanism (211) fixedly installed on the upper side of the frame (1) and a movable frame (212) movably installed on the upper side of the frame (1). The transmission roller (22) is rotatably installed inside the movable frame (212), and a motor is installed on the side of the movable frame (212).

3. A positioning type pipe cutting device for stainless steel pipe fittings according to claim 1, characterized in that: The transmission roller (22) has a mating groove (221) inside. The mating groove (221) is located directly below the through groove (331). The thickness of the mating groove (221) is less than the thickness of the through groove (331), and the thickness of the mating groove (221) is greater than the thickness of the cutting tool of the lifting cutting mechanism (4).

4. A positioning type pipe cutting device for stainless steel pipe fittings according to claim 1, characterized in that: The push-type component (32) includes a displacement plate (321) that is slidably mounted on the inner wall of the component frame (31) and a telescopic mechanism (322) that is fixedly mounted on the side of the displacement plate (321). The positioning roller (33) is movably mounted inside two corresponding displacement plates (321).

5. A positioning type pipe cutting device for stainless steel pipe fittings according to claim 1, characterized in that: The lifting and cutting mechanism (4) includes a telescopic mechanism three (42) installed above the component frame (31), a drive frame (41) is installed above the telescopic mechanism three (42), and a cutting tool (43) is rotatably installed inside the drive frame (41).

6. A positioning type pipe cutting device for stainless steel pipe fittings according to claim 5, characterized in that: The thickness of the cutting tool (43) is less than the thickness of the through groove (331), and the center positions of the cutting tool (43) and the through groove (331) are on the same vertical plane.

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