Carving machine for copper foil-coated substrate

Abstract

The invention relates to the technical field of carving equipment, in particular to a carving machine for a copper foil-coated substrate, which comprises a carving machine base, a self-adaptive lubricating assembly and a pushing assembly, a Y-axis movable placing disc is horizontally and movably arranged at the upper end of the carving machine base, and a supporting frame body is arranged on one side of the upper end of the carving machine base; the lower end face of the Y-axis movable containing disc is higher than the upper end face of the engraving machine base, a machine head mounting frame is movably arranged on the supporting frame body through an X-axis driving assembly, and when the engraving machine is used up and resets by being close to the side, lubricating oil in an oil storage tank of the self-adaptive lubricating assembly is pushed by being matched with control of the pushing assembly. Lubricating oil is rapidly distributed to the positions of the X-axis driving assembly and the Y-axis driving assembly which are provided with the engraving machine head, self-adaptive lubrication is carried out on the movement of the X-axis driving assembly and the Y-axis driving assembly, unnecessary abrasion caused by forgetting to lubricate after a period of time is avoided, the operation precision of long-term engraving is improved, and worry-saving and convenient effects are achieved.

Description

Technical Field

[0001] This invention relates to the field of engraving equipment technology, specifically to an engraving machine for copper foil substrates. Background Technology

[0002] A copper-clad laminate engraving machine is a specialized piece of equipment for high-precision machining of copper-clad laminates. It mainly uses a high-speed rotating special tool to selectively etch, groove, and cut the copper layer on the surface of the copper-clad laminate, or to drill holes and cut the shape of the substrate, ultimately forming the preset circuit traces, pads and substrate outline. It is widely used in fields such as personalized customization and small-batch PCB prototyping. The existing utility model, with publication number CN214606845U, relates to the field of circuit board engraving technology, specifically a novel circuit board engraving machine. It includes a base, a worktable, a column, a crossbeam, and a main unit. The main unit can move along the Y-axis direction under the action of a first moving block at the lower end of the column and a first moving groove on the base; it can move along the Z-axis direction under the action of a second moving block on the crossbeam and a second moving groove on the column; and it can move along the X-axis direction under the action of a third moving block at the rear end of the main unit and a third moving groove on the crossbeam. Furthermore, the engraving head can rotate under the action of a rotating disk at the lower end of the main unit, facilitating adjustment of the engraving angle and making the engraving more precise. The telescopic rod allows the engraving... The head can approach and move away from the circuit board, allowing for precise fine-tuning during engraving. Furthermore, multiple engraving heads at the bottom of the main unit can accommodate different types of engraving, facilitating various engraving patterns on the circuit board. The above solution requires precise control and adjustment of the X, Y, and Z axes of the engraving machine. Since circuit engraving requires frequent movement control to complete the engraving operation, sliding rods and sleeves are often used for support to ensure engraving stability during movement. However, existing small engraving machines often lack self-lubricating guide rods, leading to unnecessary wear gaps after prolonged careless use, especially on the X and Y axis movable guide mechanisms where the engraving head is mounted, affecting the quality of the engraving operation. Summary of the Invention

[0003] The purpose of this invention is to provide a carving machine for copper-clad foil substrates to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a copper-clad foil substrate engraving machine, comprising: The engraving machine base has a horizontally movable Y-axis placement disk at its upper end, a support frame on one side of its upper end, and the lower end surface of the Y-axis placement disk being higher than the upper end surface of the engraving machine base. A machine head mounting frame is movably mounted on the support frame via an X-axis drive assembly. A vertical movable frame is movably mounted on one side of the machine head mounting frame via a Y-axis drive assembly. The X-axis drive assembly includes an X-axis drive screw and two X-axis sliding guide rods, and the Y-axis drive assembly includes a Z-axis drive screw and two Z-axis sliding guide rods. An adaptive lubrication assembly is fixedly mounted on one side of the machine head mounting frame. The adaptive lubrication assembly includes a lubrication base, an oil reservoir, an oil delivery reservoir, two guide sleeves, and three extended oil supply pipes. The two guide sleeves are movably sleeved on two X-axis sliding guide rods, and the three extended oil supply pipes are respectively set to correspond to the Z-axis drive screw and the two Z-axis sliding guide rods. A pushing component is disposed on one side of the lubrication base. The pushing component includes an air connection groove and a pressing block. The air connection groove is connected to the oil storage groove.

[0005] Preferably, the X-axis drive screw is rotatably connected to the support frame, the two X-axis sliding guide rods are fixedly connected to the support frame, the two X-axis sliding guide rods are located on the upper and lower sides of the X-axis drive screw, and one side of the machine head mounting frame is connected to the X-axis drive screw through a screw thread sleeve.

[0006] Preferably, the Z-axis drive screw is vertically rotatably mounted on the side of the machine head mounting frame away from the X-axis drive screw, and two Z-axis sliding guide rods are vertically mounted on both sides of the machine head mounting frame near the Z-axis drive screw. The vertical movable frame is connected to the Z-axis drive screw through a screw thread sleeve, and the Z-axis sliding guide rods move through both sides of the vertical movable frame.

[0007] Preferably, each of the two lubrication bases has an oil storage groove on the side near the guide sleeve, and an oil delivery groove is provided in the guide sleeve above the X-axis sliding guide rod. One end of the oil delivery groove extends to the bottom of the oil storage groove and is connected to it. A first one-way valve is provided on the side of the oil delivery groove that is connected to the oil storage groove.

[0008] Preferably, the guide sleeve is provided with a rod groove at the position where it connects to the X-axis sliding guide rod. The upper end of each rod groove is vertically connected to the conveying oil groove and has a guide lubrication groove. A second one-way valve is inserted into each guide lubrication groove.

[0009] Preferably, the three extended oil supply pipes are horizontally arranged on one side of the guide sleeve above the lubrication base. The side of the machine head mounting bracket near the extended oil supply pipes is provided with a connecting hole. The three extended oil supply pipes are inserted into the three connecting holes respectively, and the side of the extended oil supply pipes passing through the connecting holes is respectively located near the Z-axis drive screw and the two Z-axis sliding guide rods.

[0010] Preferably, a first transition groove is horizontally provided in the guide sleeve located above the lubrication base. The first transition groove is located near three extended oil supply pipes. One side of each of the three extended oil supply pipes is connected to the first transition groove. One side of the conveying oil groove extends beyond the guide lubrication groove and is connected to the first transition groove. A third one-way valve is provided on the side of the conveying oil groove that extends beyond the guide lubrication groove and is close to the first transition groove.

[0011] Preferably, a second transition groove is provided at the lower end of the guide sleeve connected to the oil delivery groove located above the lubrication base. A U-shaped diversion groove is connected to one side of the second transition groove. The two sides of the U-shaped diversion groove pass through the lower end of the guide sleeve, and the two ends of the U-shaped diversion groove passing through the guide sleeve point directly above the X-axis drive screw.

[0012] Preferably, the lubrication base has a piston groove on the side near the reset point of the machine head mounting frame, and an air connection groove is located inside the lubrication base. The two ends of the air connection groove are connected to the oil storage groove and the piston groove, respectively. A partition guide plate is provided on one side of the piston groove, and a synchronizing rod is movably inserted into the center of the partition guide plate. The synchronizing rod passes through both sides of the partition guide plate and has a push piston and a pressing block, respectively. One side of the pressing block extends out of the lubrication base. A reset spring is sleeved between the partition guide plate and the pressing block in the piston groove. When the engraving operation is completed, the X-axis drive screw controls the machine head mounting frame to move to the reset point. At this time, the lubrication base abuts against the side wall of the support frame, the pressing block retracts into the piston groove, and the push piston moves to the position of the air connection groove.

[0013] Preferably, each of the lubrication bases has a cantilever plate on the side near the X-axis drive screw, and an auxiliary brush is embedded in each cantilever plate. The auxiliary brush is sleeved on the X-axis drive screw, and the inner circumference of the auxiliary brush has a number of bristles, which are in contact with the outer surface of the X-axis drive screw.

[0014] Compared with the prior art, the beneficial effects of the present invention are: When the engraving machine is finished and reset to the side, the lubricating oil in the oil reservoir of the adaptive lubrication component is pushed out in conjunction with the control of the push component. The lubricating oil is quickly distributed to the X-axis drive component and Y-axis drive component where the engraving machine head is installed, and adaptive lubrication is provided for their movement. There is no need to worry about unnecessary wear caused by forgetting to lubricate after a period of use, which improves the operating accuracy of long-term engraving use and is worry-free and convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial side-section structural diagram of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of part A; Figure 4This is a schematic diagram of the lubrication layout of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of part B; Figure 6 This is a schematic diagram of the extended oil supply pipe connection structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of part C; Figure 8 This is a schematic diagram of the installation of the push component of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of part D; Figure 10 This is a schematic diagram of the lubrication base and the X-axis drive assembly of the present invention. Figure 11 For the present invention Figure 10 Schematic diagram of part E.

[0016] In the diagram: 1. Engraving machine base; 2. Y-axis movable placement plate; 3. Support frame; 4. Machine head mounting frame; 5. X-axis drive screw; 6. X-axis sliding guide rod; 7. Z-axis drive screw; 8. Z-axis sliding guide rod; 9. Vertical movable frame; 10. Lubrication base; 11. Guide sleeve; 12. Extended oil supply pipe; 13. Oil storage tank; 14. Oil conveying tank; 15. First transfer groove; 16. Guide lubrication groove; 17. U-shaped diversion groove; 18. Second transfer groove; 19. First one-way valve; 20. Second one-way valve; 21. Third one-way valve; 22. Fourth one-way valve; 23. Air connection groove; 24. Piston groove; 25. Divider guide plate; 26. Synchronizing rod; 27. Push piston; 28. Pressing block; 29. ​​Return spring; 30. Cantilever plate; 31. Auxiliary brush. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see the appendix Figure 1-11 This application provides the following technical solutions.

[0019] A copper-clad laminate engraving machine includes an engraving machine base 1. A Y-axis movable placement disk 2 is horizontally movably mounted on the upper end of the engraving machine base 1. A support frame 3 is provided on one side of the upper end of the engraving machine base 1. The lower end surface of the Y-axis movable placement disk 2 is higher than the upper end surface of the engraving machine base 1. A Y-axis drive screw and two Y-axis sliding guide rods are connected to the lower end of the Y-axis movable placement disk 2. The Y-axis sliding guide rods are fixedly connected to the engraving machine base 1. The Y-axis drive screw is rotatably connected to the engraving machine base 1. When the Y-axis drive screw is driven to rotate by a servo motor, the Y-axis movable placement disk 2 can move horizontally above the engraving machine base 1.

[0020] A machine head mounting bracket 4 is movably mounted on the support frame 3 via an X-axis drive assembly. A vertical movable bracket 9 is movably mounted on one side of the machine head mounting bracket 4 via a Z-axis drive assembly. The X-axis drive assembly includes an X-axis drive screw 5 and two X-axis sliding guide rods 6. The Z-axis drive assembly includes a Z-axis drive screw 7 and two Z-axis sliding guide rods 8. The X-axis drive screw 5 is rotatably connected to the support frame 3. The two X-axis sliding guide rods 6 are fixedly connected to the support frame 3, located on the upper and lower sides of the X-axis drive screw 5. One side of the machine head mounting bracket 4 is connected to the X-axis via a screw thread sleeve. The Z-axis drive screw 7 is vertically rotatable on the side of the machine head mounting frame 4 away from the X-axis drive screw 5. Two Z-axis sliding guide rods 8 are vertically mounted on both sides of the machine head mounting frame 4 near the Z-axis drive screw 7. The vertical movable frame 9 is connected to the Z-axis drive screw 7 through a screw thread sleeve. The Z-axis sliding guide rods 8 move through both sides of the vertical movable frame 9. The machine head mounting frame 4 uses the two X-axis drive screws 5 as the main force points to perform horizontal movement in the X-axis direction. The drive control is performed by controlling the movement of the X-axis drive screws 5 driven by a servo motor. A carving head is provided on one side of the vertical movable frame 9, and a carving knife is provided below the carving head. When the Z-axis drive screw 7 is driven to rotate by the servo motor, the carving knife can move in the Z-axis direction, so that the bottom of the carving knife contacts the copper foil substrate above the Y-axis movable placement disk 2 for carving.

[0021] An adaptive lubrication assembly is installed to provide synchronous automatic lubrication for the X-axis and Z-axis drive assemblies, which are the key areas of stress and wear. The adaptive lubrication assembly is fixedly mounted on one side of the headstock mounting bracket 4. The assembly includes a lubrication base 10, an oil reservoir 13, an oil delivery trough 14, two guide sleeves 11, and three extended oil supply pipes 12. The two guide sleeves 11 are movably fitted with two X-axis sliding guide rods 6, and the three extended oil supply pipes 12 are respectively positioned corresponding to the Z-axis drive screw 7 and the two Z-axis sliding guide rods 8. Each of the two lubrication bases 10 has an oil reservoir 13 on the side near the guide sleeves 11. An oil delivery trough 14 is provided inside each guide sleeve 11 above the X-axis sliding guide rods 6. One end of the oil delivery trough 14 extends to the bottom of the oil reservoir 13 and is connected to it. A first one-way valve 19 is provided on the side of the oil delivery trough 14 connecting to the oil reservoir 13. A rod groove is provided at the position where the sliding sleeve 11 is fitted with the X-axis sliding guide rod 6. The upper end of each rod groove is vertically connected to the conveying oil tank 14 and has a guide lubrication groove 16. A second one-way valve 20 is inserted into each guide lubrication groove 16. Under normal circumstances, the lubricating oil in the oil storage tank 13 will not enter the conveying oil tank 14 under the action of the first one-way valve 19. Similarly, the lubricating oil remaining in the conveying oil tank 14 will not flow back into the oil storage tank 13. When airflow is sent into the oil storage tank 13, the change in air pressure will cause a small amount of lubricating oil in the oil storage tank 13 to break through the blockage of the first one-way valve 19 and enter the conveying oil tank 14. The lubricating oil entering the conveying oil tank 14 pushes the lubricating oil that was originally in the conveying oil tank 14 through the second one-way valve 20. At this time, the lubricating oil can enter the connection position between the guide sleeve 11 and the X-axis sliding guide rod 6 to automatically lubricate the horizontal sliding of the machine head mounting frame 4.

[0022] Three extended oil supply pipes 12 are horizontally positioned on one side of the guide sleeve 11 above the lubrication base 10. The headstock mounting bracket 4 has through-holes on the side near the extended oil supply pipes 12. The three extended oil supply pipes 12 are inserted into the three through-holes, and the sides of the extended oil supply pipes 12 passing through the through-holes are respectively positioned near the Z-axis drive screw 7 and the two Z-axis sliding guide rods 8. A first transition groove 15 is horizontally formed inside the guide sleeve 11 above the lubrication base 10. The first transition groove 15 is positioned near the three extended oil supply pipes 12, and one side of each of the three extended oil supply pipes 12 is connected to the first transition groove 15. One side of the conveying oil groove 14 extends beyond the guide lubrication groove 16 and is connected to the first transition groove 15. A third check valve 21 is provided on the side of the oil delivery tank 14 that extends past the guide lubrication tank 16 and is close to the first transfer tank 15. Three extended oil supply pipes 12 correspond to the Z-axis drive screw 7 and the two Z-axis sliding guide rods 8. When the lubricating oil is discharged from the position of the extended oil supply pipe 12, it can drip onto the joint between the vertical movable frame 9 and the Z-axis drive screw 7 and the Z-axis sliding guide rod 8 under the action of gravity. Then, as the vertical movable frame 9 moves up and down, it lubricates the Z-axis drive screw 7 and the Z-axis sliding guide rod 8. The supply of lubricating oil is the same as that of the guide lubrication tank 16. After the lubricating oil enters the oil delivery tank 14, it simultaneously pushes the third check valve 21, and the lubricating oil enters the first transfer tank 15, and then flows out of the extended oil supply pipe 12.

[0023] A second transition groove 18 is provided at the lower end of the guide sleeve 11 located above the lubrication base 10 and connected to the conveying oil groove 14. A U-shaped diversion groove 17 is connected to one side of the second transition groove 18. The two sides of the U-shaped diversion groove 17 pass through the lower end of the guide sleeve 11 respectively. The two ends of the U-shaped diversion groove 17 passing through the guide sleeve 11 point directly above the X-axis drive screw 5. The lubricating oil discharged from the position of the U-shaped diversion groove 17 can drip onto the upper end of the X-axis drive screw 5. Then, as the head mounting frame 4 moves, it lubricates the connection between the head mounting frame 4 and the X-axis drive screw 5. The lubricating oil supply is the same as that of the guide lubrication groove 16. After the lubricating oil enters the conveying oil groove 14, it simultaneously actuates the fourth one-way valve 22. The lubricating oil enters the U-shaped diversion groove 17 from the second transition groove 18 and then flows out.

[0024] A push assembly is provided to push the lubricating oil in the extended oil supply pipe 12. The push assembly is located on one side of the lubrication base 10 and includes a connecting air groove 23 and a pressing block 28. The connecting air groove 23 is connected to the oil reservoir 13. A piston groove 24 is provided on the side of the lubrication base 10 near the reset point of the head mounting bracket 4. The connecting air groove 23 is located inside the lubrication base 10, and its two ends are connected to the oil reservoir 13 and the piston groove 24, respectively. A partition guide plate 25 is provided on one side of the piston groove 24. A synchronizing rod 26 is movably inserted into the center of the partition guide plate 25. The synchronizing rod 26 passes through the partition guide plate 25, and a push piston 27 and a pressing block 28 are provided on both sides of the partition guide plate 25, respectively. One side of the pressing block 28 extends out of the lubrication base 10, and the synchronizing rod 26 is located inside the piston groove 24. A return spring 29 is sleeved between the partition guide plate 25 and the pressing block 28. After the engraving operation is completed, the X-axis drive screw 5 controls the head mounting frame 4 to move to the reset point. At this time, the lubrication base 10 abuts against the side wall of the support frame 3, the pressing block 28 retracts into the piston groove 24, and the push piston 27 moves to the air connection groove 23. At this time, the push piston 27 pushes the air in the piston groove 24 into the oil storage groove 13. After the air in the oil storage groove 13 increases and the pressure increases, the lubricating oil flows into the delivery oil groove 14. Then, the second one-way valve 20, the third one-way valve 21 and the fourth one-way valve 22 are simultaneously activated to lubricate the X-axis drive screw 5, the X-axis sliding guide rod 6, the Z-axis drive screw 7 and the Z-axis sliding guide rod 8 respectively, thereby improving the lubrication effect and quality in the high-load area.

[0025] Each side of the lubrication base 10 near the X-axis drive screw 5 is provided with a cantilever plate 30. Each cantilever plate 30 is embedded with an auxiliary brush 31. The auxiliary brush 31 is sleeved on the X-axis drive screw 5. The inner circumference of the auxiliary brush 31 is provided with several bristles, and the bristles are in contact with the outer surface of the X-axis drive screw 5. The lubrication base 10 is fixedly connected to the machine head mounting frame 4. When the machine head mounting frame 4 moves horizontally, the lubrication base 10 can drive the two cantilever plates 30 to pass over the surface of the X-axis drive screw 5. The auxiliary brush 31 cleans the oil stains on the surface of the X-axis drive screw 5 and applies lubricating oil to the thread gaps. At the same time, it prevents the oil stains in the thread gaps from accumulating and hardening, which facilitates later wiping and cleaning.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carving machine for copper-clad foil substrates, characterized in that, include: The engraving machine base (1) has a horizontally movable Y-axis placement disk (2) at its upper end. A support frame (3) is provided on one side of the upper end of the engraving machine base (1). The lower end surface of the Y-axis placement disk (2) is higher than the upper end surface of the engraving machine base (1). A machine head mounting frame (4) is movably provided on the support frame (3) through an X-axis drive assembly. A vertical movable frame (9) is movably provided on one side of the machine head mounting frame (4) through a Y-axis drive assembly. The X-axis drive assembly includes an X-axis drive screw (5) and two X-axis sliding guide rods (6). The Y-axis drive assembly includes a Z-axis drive screw (7) and two Z-axis sliding guide rods (8). An adaptive lubrication assembly is fixedly mounted on one side of the head mounting frame (4). The adaptive lubrication assembly includes a lubrication base (10), an oil reservoir (13), an oil delivery reservoir (14), two guide sleeves (11), and three extended oil supply pipes (12). The two guide sleeves (11) are respectively movably sleeved on two X-axis sliding guide rods (6), and the three extended oil supply pipes (12) are respectively corresponding to the Z-axis drive screw (7) and the two Z-axis sliding guide rods (8). The push component is located on one side of the lubrication base (10). The push component includes a connecting air groove (23) and a pressing block (28). The connecting air groove (23) is connected to the oil storage tank (13).

2. The engraving machine for copper-clad foil substrates according to claim 1, characterized in that: The X-axis drive screw (5) is connected to the support frame (3) by rotation, and the two X-axis sliding guide rods (6) are fixedly connected to the support frame (3). The two X-axis sliding guide rods (6) are located on the upper and lower sides of the X-axis drive screw (5). One side of the machine head mounting frame (4) is connected to the X-axis drive screw (5) through the screw thread sleeve.

3. The engraving machine for copper-clad foil substrates according to claim 1, characterized in that: The Z-axis drive screw (7) is vertically rotatably mounted on the side of the machine head mounting frame (4) away from the X-axis drive screw (5). Two Z-axis sliding guide rods (8) are vertically mounted on both sides of the machine head mounting frame (4) near the Z-axis drive screw (7). The vertical movable frame (9) is connected to the Z-axis drive screw (7) through the screw thread sleeve. The Z-axis sliding guide rods (8) move through both sides of the vertical movable frame (9).

4. The engraving machine for copper-clad foil substrates according to claim 3, characterized in that: Both of the two lubrication bases (10) have an oil storage groove (13) on the side near the guide sleeve (11). The guide sleeve (11) has a conveying oil groove (14) above the X-axis sliding guide rod (6). One end of the conveying oil groove (14) extends to the bottom of the oil storage groove (13) and is connected. A first one-way valve (19) is provided on the side of the conveying oil groove (14) that is connected to the oil storage groove (13).

5. The engraving machine for copper-clad foil substrates according to claim 4, characterized in that: The guide sleeve (11) is provided with a rod groove at the position where it is sleeved with the X-axis sliding guide rod (6). The upper end of the rod groove is vertically connected to the conveying oil groove (14) and a guide lubrication groove (16) is provided. A second one-way valve (20) is inserted into the guide lubrication groove (16).

6. The engraving machine for copper-clad foil substrates according to claim 5, characterized in that: The three extended oil supply pipes (12) are respectively horizontally arranged on one side of the guide sleeve (11) above the lubrication base (10). The machine head mounting bracket (4) is provided with a docking hole on the side near the extended oil supply pipe (12). The three extended oil supply pipes (12) are respectively inserted into the three docking holes, and the side of the extended oil supply pipe (12) through the docking hole is respectively close to the Z-axis drive screw (7) and the two Z-axis sliding guide rods (8).

7. The engraving machine for copper-clad foil substrates according to claim 6, characterized in that: A first transition groove (15) is horizontally opened in the guide sleeve (11) located above the lubrication base (10). The first transition groove (15) is set close to the three extended oil supply pipes (12). One side of each of the three extended oil supply pipes (12) is connected to the first transition groove (15). One side of the conveying oil groove (14) is set beyond the guide lubrication groove (16) and connected to the first transition groove (15). A third one-way valve (21) is provided on the side of the conveying oil groove (14) that is beyond the guide lubrication groove (16) and close to the first transition groove (15).

8. The engraving machine for copper-clad foil substrates according to claim 7, characterized in that: A second transition groove (18) is provided at the lower end of the guide sleeve (11) located above the lubrication base (10) and connected to the oil delivery groove (14). A U-shaped diversion groove (17) is provided on one side of the second transition groove (18). The two sides of the U-shaped diversion groove (17) pass through the lower end of the guide sleeve (11) respectively. The two ends of the U-shaped diversion groove (17) passing through the guide sleeve (11) point directly above the X-axis drive screw (5).

9. A carving machine for copper-clad foil substrates according to claim 8, characterized in that: The lubrication base (10) has a piston groove (24) on the side near the reset point of the head mounting bracket (4). A connecting air groove (23) is located in the lubrication base (10). The two ends of the connecting air groove (23) are connected to the oil reservoir (13) and the piston groove (24) respectively. A partition guide plate (25) is provided on one side of the piston groove (24). A synchronizing rod (26) is movably inserted into the center of the partition guide plate (25). The synchronizing rod (26) passes through the partition guide plate (25) and has a push piston (27) and a pressing block (28) on both sides respectively. 8) The pressing block (28) extends out of the lubrication base (10) on one side. The synchronous rod (26) is located in the piston groove (24). A reset spring (29) is sleeved between the partition guide plate (25) and the pressing block (28). When the engraving operation is completed, the X-axis drive screw (5) controls the machine head mounting frame (4) to move to the reset point. At this time, the lubrication base (10) abuts against the side wall of the support frame (3), the pressing block (28) retracts into the piston groove (24), and pushes the piston (27) to move to the air inlet groove (23).

10. A carving machine for copper-clad foil substrates according to claim 9, characterized in that: Each of the lubrication bases (10) is provided with a cantilever plate (30) on the side near the X-axis drive screw (5). Each cantilever plate (30) is embedded with an auxiliary brush (31). The auxiliary brush (31) is sleeved on the X-axis drive screw (5). The inner circumference of the auxiliary brush (31) is provided with several bristles, and the bristles are in contact with the outer surface of the X-axis drive screw (5).

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