Chipless cutting device for pipe inserting core shaping

Abstract

The utility model provides a chipless cutting device for pipe inserting core shaping, and relates to the technical field of pipe processing equipment, the chipless cutting device comprises a rack and a cutting assembly, the cutting assembly comprises a main shaft, a shaft sleeve rotatably sleeved on the main shaft and a cutter head fixed at the front end of the shaft sleeve, and the main shaft is axially provided with a hollow channel for a pipe to pass through; and the axial core inserting type shaping assembly is driven by a first linear driving unit to move along the axial guide rail and comprises a core inserting mechanism and a second linear driving unit, the core inserting mechanism is provided with an ejector rod matched with the inner diameter of the pipe, and the second linear driving unit can drive the ejector rod to shape a pipe opening of the pipe after cutting is completed. The chipless cutting device has the beneficial effects that the chipless cutting device for pipe core insertion shaping realizes on-line rounding of a pipe cutting port through mutual cooperation of the axial core insertion type shaping assembly and the cutting assembly, so that deformation and burrs caused by cutting are eliminated; the integrated design of the device helps to improve the processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and in particular to a chipless cutting device for shaping pipe inserts. Background Technology

[0002] In the field of metal processing, there are the following technical challenges in the finishing process of pipe ends after cutting thin-walled pipes and cylinders such as stainless steel and aluminum alloys: the cutting operation easily causes plastic deformation and indentation at the cut edge, resulting in the pipe end shape and position tolerance exceeding the tolerance (usually exceeding the IT9 level precision requirement), which directly affects the uniformity of the weld penetration and the smoothness of the appearance of the subsequent welded joint; while the current production background requires a secondary shaping process for the pipe end after chipless cutting to ensure the roundness of the pipe end.

[0003] To address the aforementioned issues, traditional processes employ manual core insertion or independent shaping devices (such as a steel pipe end shaping device after cutting, as authorized by Chinese Patent Publication No. CN222094390U) for secondary processing. However, this approach faces three major technical bottlenecks: First, manual operation easily leads to the accumulation of pipe end roundness errors (generally >0.1mm); second, offline processing results in a process cycle time extension of over 40%; and third, existing equipment cannot integrate the cutting and shaping processes, leading to increased energy consumption and exacerbated work hardening of the material. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a chipless cutting device for shaping tube inserts, which can overcome the problems mentioned in the background art and improve processing efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A chipless cutting device for shaping tube inserts includes a frame and a cutting assembly. The cutting assembly includes a spindle, a bushing rotatably fitted on the spindle, and a cutter head fixed to the front end of the bushing. The spindle is axially provided with a hollow channel for the tube to pass through, and the cutter head is radially provided with a slidable cutting blade.

[0007] An axial insert-type shaping assembly is driven by a first linear drive unit to move along an axial guide rail. It includes an insert mechanism and a second linear drive unit. The insert mechanism is provided with a push rod that matches the inner diameter of the tube. The second linear drive unit can drive the push rod to shape the tube end after cutting.

[0008] The insert mechanism includes a limiting sleeve, which is fixed to the frame and has an inner diameter smaller than the outer diameter of the tube. When the push rod is driven back by the second linear drive unit, the cut section of the tube is forcibly separated from the push rod by the limiting sleeve.

[0009] The cutter head is provided with a first support bearing and a second support bearing. A slider is radially slidably provided on the cutter head. The cutting blade is connected to the slider. The tube is located at the junction of the first support bearing, the second support bearing, and the cutting blade. It also includes a push sleeve, which is slidably sleeved on the main shaft and driven to move axially along the main shaft by a third linear drive unit. An inclined surface is provided on the slider. The slider cooperates with the push sleeve on the inclined surface to achieve radial feed.

[0010] The bushing is equipped with a pulley sleeve, which is connected to a belt, and the belt is connected to a rotary cutting motor.

[0011] The top rod is provided with a clearance groove on its circumference.

[0012] It also includes a pipe clamping mechanism, which includes a moving module and a fixed module. The fixed module is fixed on the frame, and the moving module is driven and slidably mounted on the frame by a fourth linear drive unit. Both the moving module and the fixed module are equipped with a clamping module.

[0013] The feed end of the moving module is provided with a guide mechanism, a straightening mechanism and a transition guide sleeve in sequence along the feeding direction. The straightening mechanism includes horizontal straightening rollers and vertical straightening rollers arranged orthogonally.

[0014] The frame is also equipped with a clamping and conveying device for transporting the cut pipe sections.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This chipless cutting device for pipe core shaping achieves online rounding of the pipe cutting end through the synergy between the axial core-type shaping component and the cutting component, thereby eliminating deformation and burrs caused by cutting; the integrated design of this device helps to improve processing efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a 3D view of a chipless cutting device for shaping pipe inserts;

[0019] Figure 2 This is a side view of a chipless cutting device for shaping pipe inserts;

[0020] Figure 3 It is a three-dimensional combination of cutting components and axial insert-type shaping components. Figure 1 ;

[0021] Figure 4 It is a three-dimensional combination of cutting components and axial insert-type shaping components. Figure 2 ;

[0022] Figure 5 It is a 3D view of the cut components;

[0023] Figure 6 This is an exploded view of the cut components;

[0024] Figure 7 This is a cross-sectional view of the cut component;

[0025] Figure 8 yes Figure 7 A magnified view of the area circled in the middle;

[0026] Figure 9 This is a schematic diagram of the push rod structure;

[0027] Figure 10 This is a schematic diagram of the pipe clamping mechanism;

[0028] Figure 11 This is a structural diagram of the guiding mechanism, straightening mechanism, and transition guide sleeve;

[0029] Figure 12 This is a schematic diagram showing the position of the push rod in the pipe.

[0030] In the picture:

[0031] 1. Rack;

[0032] 2. Cutting assembly; 21. Spindle; 22. Bushing; 23. Cutter head; 24. Cutting blade; 25. First support bearing; 26. Second support bearing; 27. Slider; 271. Inclined surface; 28. Push sleeve; 29. ​​Third linear drive unit;

[0033] 3. Axial insert-type forming assembly; 31. First linear drive unit; 32. Insertion mechanism; 33. Second linear drive unit; 34. Push rod; 341. Alternating groove; 35. Limiting sleeve;

[0034] 4. Axial guide rail;

[0035] 5. Pipe clamping mechanism; 51. Moving module; 52. Fixed module; 53. Fourth linear drive unit; 54. Clamping module; 55. Guiding mechanism; 56. Straightening mechanism; 56a. Horizontal straightening roller; 56b. Vertical straightening roller; 57. Transition guide sleeve;

[0036] 8. Clamping and conveying device;

[0037] 9. Pipe; 9a. Pipe before cutting; 9b. Pipe after cutting; 10. Pulley sleeve; 11. Belt; 12. Rotary cutting motor; Detailed Implementation

[0038] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0039] like Figures 1 to 12 As shown, a chipless cutting device for shaping pipe inserts includes a frame 1 and a cutting assembly 2. The cutting assembly 2 includes a main shaft 21, a bushing 22 rotatably fitted on the main shaft 21, and a cutter head 23 fixed to the front end of the bushing 22. The main shaft 21 is provided with a hollow channel for the pipe 9 to pass through in the axial direction, and the cutter head 23 is provided with a sliding cutting blade 24 in the radial direction. That is, when the pipe 9 enters the main shaft 21 from the hollow channel, the cutter head 23 and the cutting blade 24 rotate under the drive of the bushing 22. Combined with the radial movement of the cutting blade 24, the pipe 9 is cut.

[0040] like Figures 5 to 7 As shown, the cutter head 23 is equipped with a first support bearing 25 and a second support bearing 26. A slider 27 is radially slidably mounted on the cutter head 23, and a cutting blade 24 is connected to the slider 27. The pipe 9 is located at the junction of the first support bearing 25, the second support bearing 26, and the cutting blade 24. The first support bearing 25 and the second support bearing 26 provide support for the pipe 9. The cutter head also includes a push sleeve 28, which is slidably mounted on the main shaft 21 and driven by the third linear drive unit 29 to move axially along the main shaft 21. An inclined surface 271 is provided on the slider 27. The slider 27 cooperates with the push sleeve 28 on the inclined surface 271 to achieve radial feed. Therefore, when the push sleeve 28 pushes forward and contacts the slider 27 on the inclined surface 271, the slider 27 and the cutting blade 24 move towards the pipe 9 to cut as the push sleeve 28 moves forward. Since the cutting blade 24 rotates with the cutter head 23 as a whole, that is, it rotates around the pipe 9, it will cut the entire outer wall of the pipe 9.

[0041] A pulley sleeve 10 is fixed on the bushing 22. The pulley sleeve 10 is connected to the belt 11. The belt 11 is connected to the rotary cutting motor 12. When the rotary cutting motor 12 starts, it drives the pulley sleeve 10 and the bushing 22 to rotate through the belt 11.

[0042] The axial insert-type shaping assembly 3 is driven by the first linear drive unit 31 to move along the axial guide rail 4, which is fixed on the frame 1. It includes an insert mechanism 32 and a second linear drive unit 33. The insert mechanism 32 has a push rod 34 that matches the inner diameter of the tube 9. Specifically, the outer diameter of the push rod 34 is slightly smaller than the inner diameter of the tube 9. A clearance groove 341 is provided on the circumference of the push rod 34 to avoid the cutting blade 24. During cutting, the second linear drive unit 33 first drives the push rod 34 to insert into the tube 9. Figure 12 As shown in the figure, the clearance groove 341 corresponds to the cutting position of the cutting blade 24. Figure 12 The dotted line in the figure represents the cutting position of the cutting blade 24. After the cutting blade 24 cuts the pipe 9 into the pre-cut pipe 9a and the post-cut pipe 9b, the ends of the pre-cut pipe 9a and the post-cut pipe 9b that are close to each other must have deformation and dents. Therefore, the second linear drive unit 33 will drive the push rod 34 to move forward a short distance towards the pre-cut pipe 9a, first rounding the pre-cut pipe 9a, and then rounding the opening on the post-cut pipe 9b that is close to the pre-cut pipe 9a. Since the cut pipe 9b is fitted onto the push rod 34 after the pipe 9 is cut, the second linear drive unit 33 drives the push rod 34 to retract, which will also cause the cut pipe 9b to retract together. The insert mechanism 32 also includes a limiting sleeve 35, which is fixed to the frame 1 and its inner diameter is smaller than the outer diameter of the pipe 9. That is, when the push rod 34 is driven to retract by the second linear drive unit 33, the cut section of the pipe 9 (cut pipe 9b) is blocked by the limiting sleeve 35 and forcibly separated from the push rod 34. During the separation process, the push rod 34 rounds the opening of the cut pipe 9b on the side close to the original pipe 9a.

[0043] The frame 1 is also equipped with a clamping and conveying device 8 for transporting the cut pipe section 9. When the cut pipe section 9b retracts to the limit sleeve 35, the clamping and conveying device 8 clamps the cut pipe section 9. At this time, the push rod 34 will retract further to release it. The clamping and conveying device 8 conveys the cut pipe section 9 to the next process. The clamping and conveying device 8 uses a clamping cylinder for clamping and uses a related linear drive unit for movement. The relevant components are existing technology and will not be described in detail here.

[0044] It also includes a pipe clamping mechanism 5, which is used to transport the pipe 9 onto the main shaft 21. The pipe clamping mechanism 5 includes a moving module 51 and a fixed module 52. The fixed module 52 is fixed on the frame 1, and the moving module 51 is driven and slidably mounted on the frame 1 by the fourth linear drive unit 53. Both the moving module 51 and the fixed module 52 are equipped with a clamping module 54. The clamping module 54 is a cylinder structure. The cylinder drives the pressure block to press down, thereby clamping the pipe 9. The moving module 51 and the fixed module 52 work together as follows: the clamping module 54 of the fixed module 52 is in the open state, the clamping module 54 of the moving module 51 clamps the pipe 9 and is driven by the fourth linear drive unit 53 to move towards the fixed module 52, causing the pipe 9 to move forward. After a fixed length of conveying, the clamping module 54 of the fixed module 52 presses down to clamp the pipe 9. At the same time, the clamping module 54 of the moving module 51 opens and returns to its original position under the action of the fourth linear drive unit 53, waiting for the next round of conveying. Thus, the pipe 9 is gradually conveyed forward through the cooperation of the moving module 51 and the fixed module 52.

[0045] The feed end of the moving module 51 is provided with a guide mechanism 55, a straightening mechanism 56 and a transition guide sleeve 57 in sequence along the feeding direction. The straightening mechanism includes a horizontal straightening roller 56a and a vertical straightening roller 56b arranged orthogonally. After the tube 9 is input from the guide mechanism 55, it is straightened by the horizontal straightening roller 56a and the vertical straightening roller 56b, and then inserted into the transition guide sleeve 57. It is then transported to the main shaft 21 through the tube clamping mechanism 5.

[0046] The linear drive unit mentioned above can be a pneumatic actuator composed of cylinders or a mechanical transmission component using ball screws, both of which can achieve the driving purpose, and no specific limitation is made here.

[0047] This chipless cutting device for pipe core shaping achieves online rounding of the pipe 9 cutting end through the synergy between the axial core-type shaping component 3 and the cutting component 2, thereby eliminating deformation and burrs caused by cutting; the integrated design of this device helps to improve processing efficiency.

[0048] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chipless cutting device for shaping tubular inserts, characterized in that, The machine includes a frame (1) and a cutting assembly (2). The cutting assembly (2) includes a spindle (21), a bushing (22) rotatably fitted on the spindle (21), and a cutter head (23) fixed to the front end of the bushing (22). The spindle (21) is provided with a hollow channel for the pipe (9) to pass through in the axial direction, and the cutter head (23) is provided with a sliding cutting blade (24) in the radial direction. The axial insert-type shaping assembly (3) is driven by the first linear drive unit (31) to move along the axial guide rail (4), including the insert mechanism (32) and the second linear drive unit (33). The insert mechanism (32) is provided with a push rod (34) that fits with the inner diameter of the tube (9). The second linear drive unit (33) can drive the push rod (34) to shape the tube opening of the tube (9) after cutting.

2. The chipless cutting device for shaping pipe inserts according to claim 1, characterized in that, The insert mechanism (32) includes a limiting sleeve (35), which is fixed to the frame (1) and its inner diameter is smaller than the outer diameter of the tube (9). When the push rod (34) is driven back by the second linear drive unit (33), the tube (9) of the cut section is blocked by the limiting sleeve (35) and forcibly separated from the push rod (34).

3. The chipless cutting device for shaping pipe inserts according to claim 1, characterized in that, The cutter head (23) is provided with a first support bearing (25) and a second support bearing (26). A slider (27) is radially slidably provided on the cutter head (23). The cutting blade (24) is connected to the slider (27). The tube (9) is located at the junction of the first support bearing (25), the second support bearing (26), and the cutting blade (24). It also includes a push sleeve (28), which is slidably sleeved on the main shaft (21) and driven by the third linear drive unit (29) to move axially along the main shaft (21). An inclined surface (271) is provided on the slider (27). The slider (27) cooperates with the push sleeve (28) on the inclined surface (271) to achieve radial feed.

4. The chipless cutting device for shaping pipe inserts according to claim 3, characterized in that, The bushing (22) is provided with a pulley sleeve (10), which is connected to a belt (11), and the belt (11) is connected to a rotary cutting motor (12).

5. The chipless cutting device for shaping pipe inserts according to claim 4, characterized in that, The top rod (34) is provided with a clearance groove (341) on its upper circumference.

6. The chipless cutting apparatus for shaping tubular inserts according to any one of claims 1 to 5, characterized in that, It also includes a pipe clamping mechanism (5), which includes a moving module (51) and a fixed module (52). The fixed module (52) is fixed on the frame (1), and the moving module (51) is driven and slidably mounted on the frame (1) by the fourth linear drive unit (53). Both the moving module (51) and the fixed module (52) are provided with a clamping module (54).

7. The chipless cutting device for shaping pipe inserts according to claim 6, characterized in that, The feed end of the moving module (51) is provided with a guide mechanism (55), a straightening mechanism (56) and a transition guide sleeve (57) in sequence along the feeding direction. The straightening mechanism includes a horizontal straightening roller (56a) and a vertical straightening roller (56b) arranged orthogonally.

8. The chipless cutting device for shaping pipe inserts according to claim 5, characterized in that, The frame (1) is also equipped with a clamping and conveying device (8) for transporting the cut pipe sections (9).

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