Groove cutting method
By optimizing the travel direction and angle of the cutting gun, the bevel of two connected edges of the part is directly cut, which solves the problems of material waste and low efficiency when CNC cutting machines process bevels, and achieves higher material utilization and cutting efficiency.
Patent Information
- Application Number
- CN202511356797.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2025-11-28
AI Technical Summary
Existing CNC cutting machines suffer from material waste and low cutting efficiency when processing bevels on two connected sides. This is mainly due to the increased material space occupation and cutting time caused by the introduction, extraction, and corner ring steps.
A bevel cutting method is adopted, which directly cuts the bevel between two connected sides of the part by controlling the direction and angle of the cutting gun, eliminating the processes of lifting the gun, drilling, pulling out and introducing, and optimizing the cutting path by using pre-swing technology.
It reduces cutting time, improves material utilization and cutting efficiency, lowers production costs, and achieves greater economic benefits.
Smart Images
Figure CN121017712A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the field of part cutting and provides a groove cutting method. BACKGROUND
[0002] Many parts need to be cut on some edges after cutting the blank for welding, so some numerical control cutting machines choose to add a rotary head to process the groove while cutting the blank. The current numerical control cutting machine mainly uses the following two methods when processing the groove of two connected edges: Method one: after the groove cutting of the previous edge is finished, continue to cut a distance (generally called lead-out), then punch at the front end of the second edge and adjust the angle of the cutting gun (i.e. lead-in). The cutting of the groove of the connected edge is completed by increasing the lead-out and lead-in, but this method increases the time of gun collection and punching once.
[0003] Method two: on the basis of method one, the lead-out and lead-in are combined to form a ring (called angle ring), that is, after the end of the lead-out cutting of the first groove edge, the gun is not lifted, and the cutting is continued to the starting point of the lead-in of the second edge, and in this process, the direction of the cutting gun is changed from the angle of the first edge to the angle of the second edge.
[0004] Although these methods have advantages, they also have some problems: because of the increase of lead-in, lead-out, and angle ring, these three will occupy part of the material space, causing material waste and reducing material utilization. At the same time, the cutting of the lead-in, lead-out, and angle ring, plus the cutting time of gun collection and punching, increases the cutting time and reduces the cutting efficiency. SUMMARY
[0005] In view of the above problems, the application provides a groove cutting method.
[0006] To achieve the above purpose, the application adopts the following technical solutions: A groove cutting method, the groove comprises a first groove edge and a second groove edge, the groove face of the first groove edge is perpendicular to the YOZ plane, the groove face of the second groove edge is perpendicular to the XOZ plane, one end of the first groove edge and one end of the second groove edge intersect; the first groove edge is divided into a first groove edge front half and a second groove edge rear half from the end of the first groove edge away from the end of the second groove edge, the second groove edge is divided into a second groove edge front half and a second groove edge rear half from the end of the second groove edge close to the end of the first groove edge; the cutting method is to complete the cutting of the first groove edge front half, the first groove edge rear half, the second groove edge front half and the second groove edge rear half in turn from the end of the first groove edge front half away from the end of the second groove edge, wherein the travel direction of the cutting torch is constant in the first groove edge front half, the travel direction of the cutting torch is constant in the second groove edge rear half, and the travel direction of the cutting torch gradually changes from the start of cutting of the first groove edge rear half to the end of cutting of the second groove edge front half.
[0007] Further, when cutting the first groove edge front half, the travel direction of the cutting torch is in the first groove edge plane and parallel to the YOZ plane.
[0008] Further, when the cutting torch reaches the intersection line of the first groove edge and the second groove edge, the cutting torch is just tilted in place, and at this time the cutting torch is in the planes of the first groove edge and the second groove edge, i.e. on the intersection line of the two groove faces.
[0009] Further, the second groove edge front half is cut from the intersection line of the two groove faces, and when the cutting of the second groove edge front half is completed, the cutting torch is just rotated to the required angle of the second groove edge rear half.
[0010] Further, when cutting the second groove edge rear half, the travel direction of the cutting torch is in the second groove edge plane and parallel to the XOZ plane.
[0011] Further, during the cutting of the first groove edge rear half and the second groove edge front half, the cutting torch works by simultaneously traveling and tilting.
[0012] Further, when the cutting torch is simultaneously cutting and tilting, it must ensure that it is always in the plane of the groove it is cutting.
[0013] Compared with the prior art, the present application has the following beneficial effects: The beveling cutting method described in this invention improves upon the traditional method of beveling parts using a cutting gun control method called pre-oscillation. This method eliminates several processes in the original cutting process, including gun lifting, drilling, lead-out, lead-in, and corner ringing, saving cutting time. Furthermore, since the lead-out, lead-in, and corner ringing processes require space, the improved method further reduces the gap between parts, increasing material utilization. This technological improvement will bring significant economic benefits to actual production. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the beveling cutting described in this invention.
[0015] Figure 2 This is a traditional bevel cutting trajectory diagram.
[0016] Wherein, 1-first slope edge, 1a-first half of the first slope edge, 1b-second half of the first slope edge, 2-second slope edge, 2a-first half of the second slope edge, 2b-second half of the second slope edge. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.
[0018] like Figure 1 As shown, a beveling method is provided, wherein the beveling includes a first beveling edge 1 and a second beveling edge 2. The beveling surface of the first beveling edge 1 is perpendicular to the YOZ plane, and the beveling surface of the second beveling edge 2 is perpendicular to the XOZ plane. One end of the first beveling edge 1 and one end of the second beveling edge 2 intersect. The first beveling edge 1 is divided into a first beveling edge front half 1a and a second beveling edge rear half 1b from its end away from the second beveling edge 2. The second beveling edge 2 is divided into a second beveling edge front half 2a and a second beveling edge rear half 2b from its end close to the first beveling edge 1. The cutting method involves sequentially cutting the first bevel edge 1a, the second bevel edge 1b, the first bevel edge 2a, and the second bevel edge 2b, starting from the end of the first bevel edge 1a that is far from the second bevel edge 2. The cutting gun travels in a constant direction in the first bevel edge 1a and in a constant direction in the second bevel edge 2b. From the start of cutting the second bevel edge 1b to the end of cutting the second bevel edge 2a, the direction of travel of the cutting gun gradually changes.
[0019] Specifically, when the first bevel edge front half 1a is cut, the cutting torch travel direction is in the first bevel edge 1 plane and parallel to the YOZ plane.
[0020] When the first bevel edge rear half 1b is cut, the cutting torch travel direction gradually inclines from parallel to the YOZ plane to the plane where the two bevel surfaces intersect (i.e. pre-tilt). When the cutting torch reaches the intersection line of the first bevel edge 1 and the second bevel edge 2, the cutting torch is just tilted in place, at which time the cutting torch is in the plane of the first bevel edge 1 and the second bevel edge 2, i.e. on the intersection line of the two bevel surfaces.
[0021] The second bevel edge front half 2a is cut from the intersection line of the two bevel surfaces. When the cutting starts, the cutting torch forms a certain angle with the XOZ plane. During the cutting process, the cutting torch gradually rotates. When the second bevel edge front half 2a is cut, the cutting torch rotates to the required angle for the rear half.
[0022] The second bevel edge rear half 2b is the normal bevel cutting of the second bevel edge 2, i.e. the cutting torch travel direction is in the second bevel edge 2 plane and parallel to the XOZ plane.
[0023] The cutting process is a gradual process, i.e. during the cutting of the first bevel edge rear half 1b and the second bevel edge front half 1a, the cutting torch works while traveling and tilting at the same time.
[0024] The different tilt angles of the cutting torch will cause the cutting depth to change, and the cutting parameters also need to be adjusted appropriately to meet the new cutting depth requirements, including cutting speed, power, duty cycle, gas pressure, etc.
[0025] When the cutting torch is cutting and tilting at the same time, it must be ensured that the cutting torch is always in the plane of the current bevel.
[0026] Specifically, when the cutting torch is cutting a part, the bevel of the previous edge of the part is cut, the cutting torch angle is adjusted in advance by a certain distance, so that the included angle between the cutting torch and the part meets the bevel angle requirements of the current cutting edge, and the two connected edges of the part are directly cut out at one step, and the angle of the next edge bevel also meets the requirements.
[0027] The bevel cutting method of the present application saves bevel cutting time and improves bevel cutting efficiency by reducing the lifting and punching process during bevel cutting. The cutting point leading and arc leading and trailing during cutting are eliminated, the gap between parts on the base material is reduced, the material utilization rate is improved, and the production cost is saved. The bevel cutting method mainly solves the problems of material waste and low cutting efficiency.
[0028] The basic principles, main features, and advantages of the present invention are described herein. 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 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 claimed by the appended claims and their equivalents is defined.
Claims
1. A bevel cutting method, characterized in that, The bevel includes a first bevel edge and a second bevel edge. The bevel surface of the first bevel edge is perpendicular to the YOZ plane, and the bevel surface of the second bevel edge is perpendicular to the XOZ plane. One end of the first bevel edge and one end of the second bevel edge intersect. The first bevel edge is divided into a first half and a second half from the end away from the second bevel edge. The second bevel edge is divided into a second half and a second half from the end close to the first bevel edge. The cutting method is to sequentially complete the cutting of the first half, the second half, the first half, and the second half of the first bevel edge, starting from the end of the first half away from the second bevel edge. The cutting gun travels in a constant direction in the first half of the first bevel edge and in a constant direction in the second half of the second bevel edge. From the start of cutting the second half of the first bevel edge to the end of cutting the first half of the second bevel edge, the direction of travel of the cutting gun gradually changes.
2. The beveling method according to claim 1, characterized in that, During the first half of the cutting process at the first bevel edge, the cutting gun travels in a direction within the plane of the first bevel edge and parallel to the YOZ plane.
3. The beveling method according to claim 2, characterized in that, When the cutting gun reaches the boundary line between the first bevel edge and the second bevel edge, the cutting gun is tilted into position. At this time, the cutting gun is simultaneously in the plane of the first bevel edge and the second bevel edge, that is, located on the intersection line of the two bevel surfaces.
4. The beveling method according to claim 3, characterized in that, The first half of the second bevel edge cutting begins at the intersection of the two bevel surfaces. When the first half of the second bevel edge cutting is completed, the cutting gun rotates to the angle required for the second half of the second bevel edge cutting.
5. The beveling method according to claim 4, characterized in that, During the second half of the cutting process at the second bevel edge, the direction of travel of the cutting gun is located within the plane of the second bevel edge and parallel to the XOZ plane.
6. The beveling method according to claim 5, characterized in that, During the second half of the cutting process at the first bevel edge and the first half of the cutting process at the second bevel edge, the cutting gun operates by simultaneously moving forward and tilting.
7. A beveling method according to claim 6, characterized in that, When the cutting gun is cutting and tilting simultaneously, it must ensure that it remains within the plane of the bevel it is cutting.