Laser cutting machine for copper rod production

Abstract

The utility model relates to a laser cutting machine for copper rod production. The laser cutting machine comprises a tubular conveying frame and a roller driving mechanism, the tubular conveying frame comprises a hollow pipe arranged on the upper surface of the bottom plate, balls annularly distributed at equal intervals along the center axis of the hollow pipe are arranged in the hollow pipe, and a copper rod penetrates through the hollow pipe and makes contact with the balls. The roller driving mechanism comprises a feeding structure and a rotating structure; a laser cutting head located outside the hollow pipe is arranged on the upper surface of the bottom plate through a support, the laser cutting head is located on the radial extension line of the copper rod, and the laser cutting head communicates with a laser cutting machine host. According to the utility model, the mounting rack, the lining, the balls and other components are arranged, and the three structures are matched with one another, so that the balls play a role in comprehensively supporting the copper rod when the copper rod is placed in the lining, and the copper rod is sufficiently supported even when the copper rod moves in the axial direction or rotates on its own axis.

Description

Technical Field

[0001] This utility model relates to the field of rod-shaped object cutting technology, specifically to a laser cutting machine for copper rod production. Background Technology

[0002] Cutting is an important process in the production of copper rods. With the development of the copper rod production industry, the requirements for the efficiency and precision of copper rod cutting are getting higher and higher. Traditional copper rod cutting equipment usually adopts mechanical cutting methods, which have disadvantages such as slow cutting speed, low precision, and easy damage to the surface of copper rods.

[0003] Existing copper rod laser cutting machines have the following shortcomings in practical applications:

[0004] On the one hand, the stability of copper rod conveying is insufficient. Traditional equipment mostly uses simple rollers or guide rails for support, which lacks effective constraints on the radial displacement of the copper rod. The copper rod is prone to sagging in the middle, causing the conveying trajectory to deviate and resulting in skewed cuts.

[0005] Feeding structures such as gear transmission and threaded rod drive use rigid contact drive, which not only easily leaves damage on the surface of the copper rod, but also has difficulty adapting to uneven material hardness, which may cause slippage or jamming, affecting the control of feed amount. Some structures that force the copper rod to rotate may also cause feed speed fluctuations due to rotational inertia.

[0006] On the other hand, the precision required by laser cutting is difficult to meet. The high reflectivity and strong thermal conductivity of copper rods require precise matching of laser energy with the thickness of the copper rod and the cutting speed. However, most existing equipment uses fixed power output, and the copper rod is in a fixed state during cutting. Therefore, when the laser cutting head cuts the copper rod from top to bottom, the uneven thickness can lead to problems such as the thick-walled parts of the copper rod not being cut through, while the thin-walled areas may be over-absorbed.

[0007] Therefore, a laser cutting machine for copper rod production is proposed to solve the problems mentioned above. Utility Model Content

[0008] Based on the above description, this utility model provides a laser cutting machine for copper rod production to solve the problems of insufficient stability and accuracy during conveying and insufficient cutting accuracy caused by the uneven thickness of the rod during cutting in existing copper rod laser cutting machines.

[0009] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A laser cutting machine for copper rod production, comprising: a tubular conveyor frame and a roller drive mechanism;

[0010] The tubular conveyor frame includes a hollow tube disposed on the upper surface of the base plate. Inside the hollow tube are ball bearings that are equidistantly distributed in a ring along the central axis of the hollow tube. A copper rod passes through the hollow tube and contacts the ball bearings.

[0011] The roller drive mechanism includes a feeding structure and a rotating structure. Both the feeding structure and the rotating structure include a stand on the upper surface of the base plate. An electric telescopic rod is provided at the top of the stand. The output end of the electric telescopic rod is provided with a roller drive component extending into the hollow tube. The two roller drive components are distributed along the axial and radial directions of the copper rod, respectively, to drive the copper rod to move linearly along the axial direction or rotate around the central axis of the copper rod.

[0012] The upper surface of the base plate is equipped with a laser cutting head located outside the hollow tube via a bracket. The laser cutting head is located on the radial extension line of the copper rod and is connected to the main body of the laser cutting machine.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the hollow tube includes a mounting frame, which includes an upward-facing semi-cylindrical body. The inner walls at both ends of the semi-cylindrical body are provided with semi-circular limiting strips, and a semi-cylindrical cap is provided at the top. Both the semi-cylindrical cap and the inner wall of the semi-cylindrical body are provided with hemispherical grooves. The inner diameter of the semi-circular limiting strip is larger than the outer diameter of the copper rod.

[0015] Furthermore, a first axial hole and a first arc-shaped hole are provided on the circumferential surface of the half-cylinder cover. The first axial hole is arranged along the axial direction of the half-cylinder cover, and the first arc-shaped hole is arranged along the radial direction of the half-cylinder cover.

[0016] Furthermore, the interior of the semi-cylinder is provided with an inner liner, the inner liner including a hollow cylinder disposed between the semi-cylinder and the semi-cylinder cover, and the circumferential surface of the hollow cylinder is provided with a second axial hole and a second arc-shaped hole corresponding to the first axial hole and the first arc-shaped hole, respectively.

[0017] Furthermore, one end of the hollow cylinder is provided with a semi-cylindrical plate located inside the semi-cylindrical body. Both the hollow cylinder and the semi-cylindrical plate are located between the two semi-circular limiting strips. Both the hollow cylinder and the semi-cylindrical plate are provided with hemispherical through holes on their circumferential surfaces. The hemispherical through holes correspond to the second axial hole. The interior of the hemispherical groove is provided with ball bearings that penetrate the hemispherical through holes and extend to the outside of the hemispherical through holes. The ball bearings are used to support the copper rod while reducing the friction generated when the copper rod moves.

[0018] Furthermore, the support frame includes an n-shaped frame disposed on the upper surface of the base plate, the interior of the n-shaped frame is provided with a crossbar, the upper surface of the crossbar is provided with a guide hole penetrating the crossbar, and the top of the n-shaped frame is provided with an electric telescopic rod with an output end extending above the crossbar.

[0019] Furthermore, the roller drive component includes a roller frame disposed below the crossbar, a guide post passing through the guide hole is disposed on the top of the roller frame, the upper surface of the guide post is connected to the output end of the electric telescopic rod, a roller is disposed inside the roller frame, and a motor with an output shaft connected to the roller is disposed on the outer surface.

[0020] Furthermore, the two rollers inside the feeding structure and the rotating structure are respectively arranged along the axial and radial directions of the copper rod. The rollers inside the feeding structure pass through the first axial hole and the second axial hole from top to bottom and then contact the circumferential surface of the copper rod.

[0021] Furthermore, the rollers inside the rotating structure pass through the first arc-shaped hole and the second arc-shaped hole from top to bottom and then come into contact with the circumferential surface of the copper rod.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0023] 1. This utility model, by setting up a mounting frame, an inner liner, and ball bearings, and through the cooperation between the above three structures, ensures that the ball bearings provide full support when the copper rod is placed inside the inner liner, so that the copper rod is adequately supported when moving along the axis or rotating, thereby ensuring sufficient stability during transportation.

[0024] 2. By setting up the feeding structure and the rotating structure, the copper rod is fed and rotated along the axial direction. After the copper rod moves a fixed distance along the axial direction, the main unit of the laser cutting machine is powered on, so that the laser cutting head emits a cutting laser to irradiate the circumference of the copper rod. After the feeding structure is separated from the copper rod, the rotating structure contacts the copper rod and is powered on, so that the copper rod rotates and is cut under the action of the laser. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a laser cutting machine for copper rod production provided in this embodiment of the present invention;

[0026] Figure 2 for Figure 1 Structural sectional view;

[0027] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0028] Figure 4 This is a schematic diagram of the mounting bracket in an embodiment of the present invention;

[0029] Figure 5 for Figure 4 A magnified view of a portion of region B in the middle;

[0030] Figure 6 This is a schematic diagram of the inner lining structure in an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the support frame in an embodiment of the present utility model;

[0032] Figure 8 This is a schematic diagram of the roller drive component in an embodiment of the present invention;

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Base plate; 2. Mounting bracket; 21. Semi-cylinder; 22. Semi-circular limiting strip; 23. Semi-cylinder cover; 24. Hemispherical groove; 25. First axial hole; 26. First arc-shaped hole; 3. Liner; 31. Hollow cylinder; 32. Semi-cylinder plate; 33. Hemispherical through hole; 34. Second axial hole; 35. Second arc-shaped hole; 4. Ball bearing; 5. Stand; 51. N-shaped frame; 52. Crossbar; 53. Guide hole; 6. Electric telescopic rod; 7. Roller drive component; 71. Roller frame; 72. Guide column; 73. Roller; 74. Motor; 8. Laser cutting machine main unit; 9. Laser cutting head; 10. Copper rod. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0038] Please see Figures 1-3 A laser cutting machine for copper rod production includes: a tubular conveyor and a roller drive mechanism;

[0039] The tubular conveyor frame includes a hollow tube disposed on the upper surface of the base plate 1. Inside the hollow tube are ball bearings 4 that are equidistantly distributed in a ring along the central axis of the hollow tube. The copper rod 10 passes through the hollow tube and contacts the ball bearings 4.

[0040] The upper surface of the base plate 1 is provided with a laser cutting head 9 located outside the hollow tube via a bracket. The laser cutting head 9 is located on the radial extension line of the copper rod 10 and is connected to the laser cutting machine host 8.

[0041] Based on the above, the tubular conveyor serves to guide the copper rod 10 on the one hand, and to restrict and support the copper rod 10 on the other hand, so that the copper rod 10 can move along the axial direction and rotate on its own axis. The ball bearings 4 play an auxiliary role in the movement, making the movement of the copper rod 10 smoother.

[0042] like Figure 4 and Figure 5 As shown, the hollow tube includes a mounting frame 2, which includes an upward-facing semi-cylindrical body 21. The inner walls at both ends of the semi-cylindrical body 21 are provided with semi-circular limiting strips 22, and the top end is provided with a semi-cylindrical cover 23. The inner walls of the semi-cylindrical cover 23 and the semi-cylindrical body 21 are both provided with hemispherical grooves 24. The inner diameter of the semi-circular limiting strip 22 is larger than the outer diameter of the copper rod 10.

[0043] The semi-cylindrical cover 23 is provided with a first axial hole 25 and a first arc-shaped hole 26 on its circumferential surface. The first axial hole 25 is arranged along the axial direction of the semi-cylindrical cover 23, and the first arc-shaped hole 26 is arranged along the radial direction of the semi-cylindrical cover 23.

[0044] Based on the above, the half-cylinder 21 and the half-cylinder cover 23 cooperate with each other, so that part of the half-cylinder 21 forms a complete cylindrical object, and the other part is a half-cylinder object with the opening facing upward. The opening facilitates the insertion of the copper rod 10, while the cylindrical object restricts the copper rod 10, so that the copper rod 10 can only achieve two modes of movement: rotation and linear movement along the axis. The semi-circular limiting strip 22 restricts the inner liner 3, preventing the inner liner 3 from moving along the axis and detaching.

[0045] like Figure 6 As shown, the interior of the semi-cylindrical body 21 is provided with a liner 3. The liner 3 includes a hollow cylinder 31 disposed between the semi-cylindrical body 21 and the semi-cylindrical cover 23. The circumferential surface of the hollow cylinder 31 is provided with a second axial hole 34 and a second arc-shaped hole 35, which are respectively corresponding to the first axial hole 25 and the first arc-shaped hole 26.

[0046] One end of the hollow cylinder 31 is provided with a semi-cylindrical plate 32 located inside the semi-cylindrical body 21. The hollow cylinder 31 and the semi-cylindrical plate 32 are both located between the two semi-circular limiting strips 22. The circumferential surfaces of the hollow cylinder 31 and the semi-cylindrical plate 32 are provided with hemispherical through holes 33. The hemispherical through holes 33 correspond to the second axial hole 34. The interior of the hemispherical groove 24 is provided with a ball bearing 4 that passes through the hemispherical through hole 33 and extends to the outside of the hemispherical through hole 33. The ball bearing 4 is used to support the copper rod 10 while reducing the friction generated when the copper rod 10 moves.

[0047] Based on the above, the inner liner 3 serves to restrict the ball bearing 4. When the semi-cylinder 21 and the semi-cylinder cover 23 are connected to each other, the inner liner 3 is in close contact with the inner parts of the semi-cylinder 21 and the semi-cylinder cover 23, thereby achieving the effect of fixing the position of the inner liner 3. At this time, the hemispherical through hole 33 and the hemispherical groove 24 cooperate with each other, so that the ball bearing 4 can rotate inside the hemispherical groove 24 and the hemispherical through hole 33. The setting of the ball bearing 4 plays the role of assisting the movement of the copper rod 10, so that the copper rod 10 can move smoothly whether it rotates or moves axially.

[0048] like Figure 1 and Figure 2 As shown, the roller drive mechanism includes a feeding structure and a rotating structure. Both the feeding structure and the rotating structure include a frame 5 disposed on the upper surface of the base plate 1. An electric telescopic rod 6 is disposed at the top of the frame 5. Preferably, an electric telescopic rod of model J08-100-50 is used. The output end of the electric telescopic rod 6 is provided with a roller drive component 7 extending into the hollow tube. The two roller drive components 7 are respectively distributed along the axial direction and radial direction of the copper rod 10 to drive the copper rod 10 to move linearly along the axial direction or rotate around the central axis of the copper rod 10.

[0049] like Figure 7 As shown, the support frame 5 includes an n-shaped frame 51 disposed on the upper surface of the base plate 1. A crossbar 52 is disposed inside the n-shaped frame 51. A guide hole 53 is disposed on the upper surface of the crossbar 52. An electric telescopic rod 6 with an output end extending above the crossbar 52 is disposed on the top of the n-shaped frame 51.

[0050] Based on the above, the support frame 5 provides support for the electric telescopic rod 6, enabling the electric telescopic rod 6 to drive the roller drive component 7 to move vertically, so that the two roller drive components 7 can contact or separate from the copper rod 10.

[0051] like Figure 8As shown, the roller drive component 7 includes a roller frame 71 disposed below the crossbar 52. The top of the roller frame 71 is provided with a guide post 72 that passes through the guide hole 53. The upper surface of the guide post 72 is connected to the output end of the electric telescopic rod 6. The roller frame 71 is provided with a roller 73 inside. The surface of the roller 73 is provided with an anti-slip pattern, and the outer surface is provided with a motor 74 whose output shaft is connected to the roller 73. Preferably, a servo motor with the model number MSMF022L1UM is selected.

[0052] The two rollers 73 inside the feeding structure and the rotating structure are respectively arranged along the axial and radial directions of the copper rod 10. The roller 73 inside the feeding structure passes through the first axial hole 25 and the second axial hole 34 from top to bottom and then contacts the circumferential surface of the copper rod 10. The roller 73 inside the rotating structure passes through the first arc-shaped hole 26 and the second arc-shaped hole 35 from top to bottom and then contacts the circumferential surface of the copper rod 10.

[0053] Based on the above, when the motor 74 is energized, it drives the roller 73 to rotate. When the roller 73 inside the feed structure rotates, it drives the copper rod 10 to move axially under the action of friction. When the roller 73 inside the rotating structure rotates, it drives the copper rod 10 to rotate under the action of friction.

[0054] Equipment installation and component connection

[0055] Assembly of mounting bracket 2: Connection between half-cylinder 21 and half-cylinder cover 23: Fixed by 4 sets of M8 stainless steel bolts, with a 2mm thick silicone sealing ring embedded in the mating surface to ensure sealing and dustproof performance. The bottom of half-cylinder 21 is bolted to the base plate 1 with a bolt spacing of 200mm and a torque value of 25N・m.

[0056] Installation of ball bearing 4: Apply molybdenum disulfide grease to the hemispherical groove 24 of the half-cylinder 21 and the half-cylinder cover 23, and embed the 304 stainless steel ball bearing 4 with a diameter of 8mm into the groove, ensuring that the exposed part of the ball bearing 4 occupies 1 / 3 of its diameter. A ring support structure is formed through the hemispherical through hole 33 of the inner liner 3. The ball bearing 4 is equidistantly distributed along the central axis of the hollow tube, with a circumferential interval angle of 45° (a total of 8 ball bearings).

[0057] Debugging of the roller drive mechanism; Positioning of the upright 5: The upright 5 is fixed to the base plate 1 by anchor bolts, and the distance between it and the mounting bracket 2 is 300mm, ensuring that the roller drive component 7 can freely extend into the hollow tube.

[0058] The travel setting of the electric telescopic rod 6: In the initial state, the electric telescopic rod 6 is retracted to the shortest travel, and the distance between the roller 73 and the surface of the copper rod 10 is 10mm; in the working state, the telescopic rod extends to press the roller 73 against the copper rod, and the pressure is monitored in real time by the pressure sensor. The preset pressure value is 50N-100N (which can be adjusted by the controller).

[0059] Calibration of laser cutting head 9: Use a laser collimator to adjust the axis of the cutting head to ensure that it is perpendicular to the central axis of copper rod 10, with a deviation of ≤0.1°; The focal position of the cutting head is adjusted by the lifting mechanism, and the diameter of the focused spot is ≤0.3mm (corresponding to a power of 2000W).

[0060] Workflow and Control Logic

[0061] Copper rod conveying and support principle;

[0062] Axial movement: The roller 73 of the feed structure extends into the hollow tube through the first axial hole 25 and the second axial hole 34. The motor 74 drives the roller 73 to rotate clockwise at a speed of 150 r / min. Through friction with a coefficient of friction μ=0.6, the copper rod 10 moves axially at a speed of v=π×D×n / 60 (where D is the diameter of the copper rod and n is the roller speed). For example, when cutting a φ20mm copper rod, the roller speed is set to 100 r / min and the feed speed is 104.7 mm / s.

[0063] Self-rotation drive: The roller 73 of the rotating structure extends into the hollow tube through the first arc-shaped hole 26 and the second arc-shaped hole 35. The motor 74 drives the roller 73 to rotate in the opposite direction (or forward direction) at a speed of 200 r / min, forming a torque that causes the copper rod 10 to rotate counterclockwise (or clockwise) around the central axis. At this time, the roller 73 of the feeding structure separates from the copper rod 10 to avoid interference.

[0064] Linkage control of the cutting process:

[0065] Fixed-length cutting process:

[0066] 1. By setting a photoelectric sensor on the side of the hollow tube facing the laser cutting head 9, inserting the copper rod 10 into the hollow tube, triggering the photoelectric sensor, and the system records the initial position;

[0067] 2. When the feed mechanism starts, the copper rod moves axially at a speed of 100mm / s, and the motor stops after rotating a constant number of revolutions at 74.

[0068] 3. The laser cutting head 9 moves along the guide rail to the cutting position, and the rotating structure is activated to make the copper rod rotate at 5 r / min;

[0069] 4. Adjust the laser power to 3000W, and the cutting head cuts radially at a speed of 8mm / s to complete the circumferential cutting;

[0070] 5. The rotating structure stops, and the copper rod 10 of the cutting section is discharged from the end near the laser cutting head 9.

[0071] Thickness compensation mechanism: The copper rod wall thickness is detected in real time by a laser thickness gauge. When a thick wall area is detected, such as a wall thickness > 5mm, the system automatically increases the laser power to 3500W and reduces the rotation speed to 3r / min to ensure energy matching.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 laser cutting machine for copper rod production, characterized in that, include: Tubular conveyor and roller drive mechanism; The tubular conveyor frame includes a hollow tube disposed on the upper surface of the base plate (1). Inside the hollow tube are ball bearings (4) that are equidistantly distributed in a ring along the central axis of the hollow tube. A copper rod (10) passes through the hollow tube and contacts the ball bearings (4). The roller drive mechanism includes a feeding structure and a rotating structure. Both the feeding structure and the rotating structure include a stand (5) set on the upper surface of the base plate (1). An electric telescopic rod (6) is set at the top of the stand (5). A roller drive component (7) extending into the hollow tube is set at the output end of the electric telescopic rod (6). The two roller drive components (7) are distributed along the axial and radial directions of the copper rod (10) respectively, so as to drive the copper rod (10) to move linearly along the axial direction or rotate around the central axis of the copper rod (10). The upper surface of the base plate (1) is provided with a laser cutting head (9) located outside the hollow tube via a bracket. The laser cutting head (9) is located on the radial extension line of the copper rod (10), and the laser cutting head (9) is connected to the laser cutting machine host (8).

2. The laser cutting machine for copper rod production according to claim 1, characterized in that, The hollow tube includes a mounting frame (2), which includes an upward-opening semi-cylindrical body (21). The inner walls at both ends of the semi-cylindrical body (21) are provided with semi-circular limiting strips (22), and the top end is provided with a semi-cylindrical cover (23). The inner walls of the semi-cylindrical cover (23) and the semi-cylindrical body (21) are provided with hemispherical grooves (24). The inner diameter of the semi-circular limiting strip (22) is larger than the outer diameter of the copper rod (10).

3. The laser cutting machine for copper rod production according to claim 2, characterized in that, The semi-cylindrical cover (23) is provided with a first axial hole (25) and a first arc-shaped hole (26) on its circumferential surface. The first axial hole (25) is provided along the axial direction of the semi-cylindrical cover (23), and the first arc-shaped hole (26) is provided along the radial direction of the semi-cylindrical cover (23).

4. The laser cutting machine for copper rod production according to claim 3, characterized in that, The interior of the semi-cylinder (21) is provided with a liner (3), the liner (3) includes a hollow cylinder (31) disposed between the semi-cylinder (21) and the semi-cylinder cover (23), and the circumferential surface of the hollow cylinder (31) is provided with a second axial hole (34) and a second arc-shaped hole (35) corresponding to the first axial hole (25) and the first arc-shaped hole (26), respectively.

5. The laser cutting machine for copper rod production according to claim 4, characterized in that, One end of the hollow cylinder (31) is provided with a semi-cylindrical plate (32) located inside the semi-cylindrical body (21). The hollow cylinder (31) and the semi-cylindrical plate (32) are both located between the two semi-circular limiting strips (22). The circumferential surfaces of the hollow cylinder (31) and the semi-cylindrical plate (32) are provided with hemispherical through holes (33). The hemispherical through holes (33) correspond to the second axial hole (34). The interior of the hemispherical groove (24) is provided with a ball (4) that penetrates the hemispherical through hole (33) and extends to the outside of the hemispherical through hole (33). The ball (4) is used to support the copper rod (10) while reducing the friction generated when the copper rod (10) moves.

6. The laser cutting machine for copper rod production according to claim 4, characterized in that, The support frame (5) includes an n-shaped frame (51) disposed on the upper surface of the base plate (1). The n-shaped frame (51) has a crossbar (52) inside. The upper surface of the crossbar (52) has a guide hole (53) that passes through the crossbar (52). The top of the n-shaped frame (51) has an electric telescopic rod (6) with its output end extending above the crossbar (52).

7. The laser cutting machine for copper rod production according to claim 6, characterized in that, The roller drive component (7) includes a roller frame (71) disposed below the crossbar (52). The top of the roller frame (71) is provided with a guide post (72) that passes through the guide hole (53). The upper surface of the guide post (72) is connected to the output end of the electric telescopic rod (6). The roller frame (71) is provided with a roller (73) inside and a motor (74) whose output shaft is connected to the roller (73) on its outer surface.

8. The laser cutting machine for copper rod production according to claim 7, characterized in that, The two rollers (73) inside the feeding structure and the rotating structure are respectively arranged along the axial and radial directions of the copper rod (10). The rollers (73) inside the feeding structure pass through the first axial hole (25) and the second axial hole (34) from top to bottom and then contact the circumferential surface of the copper rod (10).

9. The laser cutting machine for copper rod production according to claim 7, characterized in that, The roller (73) inside the rotating structure passes through the first arc-shaped hole (26) and the second arc-shaped hole (35) from top to bottom and then contacts the circumferential surface of the copper rod (10).

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