Magnetic shoe die punch manufacturing device based on plasma cladding and manufacturing process thereof

Abstract

The invention relates to the technical field of lower punch manufacturing, and discloses a plasma cladding-based magnetic shoe die punch manufacturing device which comprises a workbench, two stand columns are mounted on the workbench, a multi-axis moving mechanism is mounted between the two stand columns, and a plasma gun is mounted at the driving end of the multi-axis moving mechanism; the side face of the plasma gun is provided with a circuit interface, and the two sides of the plasma gun are provided with feeding pipes. According to the magnetic shoe die punch manufacturing technology based on plasma cladding, the multi-axis rotating mechanism drives the clamped punch to rotate at multiple angles, the complex curved surface of the head of the punch can be always adjusted to the optimal surfacing position through cooperative control, in the process, an anode nozzle of a plasma gun can be always kept perpendicular and aligned to the surface to be clad, and the surface to be clad is effectively protected. After being instantly melted by the plasma arc, the powder is deposited on the preheated punch base body, so that a compact metallurgical bonding layer is formed, and the hidden danger of a hollowing area in a traditional process is thoroughly eliminated.

Description

Technical Field

[0001] This invention relates to the field of punch preparation technology, specifically to a magnetic tile mold punch preparation device and its preparation process based on plasma cladding. Background Technology

[0002] In the field of wet-pressed magnetic tile mold manufacturing, the lower punch is a key and easily damaged component. Its head must have the special properties of high wear resistance, high hardness and non-magnetic properties.

[0003] The traditional mainstream manufacturing process is to use the "substrate-insert mechanical welding" method: using medium carbon steel such as 40Cr as the punch substrate, machining a cavity in its head, then embedding a pre-formed non-magnetic stainless steel or Stellite alloy insert, and using argon arc welding and other processes to weld and fix it around the insert.

[0004] The above process route typically includes multiple discrete processes such as substrate processing, heat treatment, cavity wire cutting, insert preparation, manual welding, post-weld secondary processing, and fine grinding.

[0005] However, this traditional technology has the following significant drawbacks: poor structural reliability and susceptibility to early failure. Because mechanical connection is achieved only through peripheral welds, there are large unbonded "hollow" areas between the insert and the substrate. Under complex working conditions of high-frequency impact and friction, the weld becomes a stress concentration point, which is prone to fatigue cracks, leading to the entire insert falling off and seriously affecting mold life and production continuity.

[0006] Therefore, we propose a magnetic tile mold punch preparation device and its preparation process based on plasma cladding to solve the problems mentioned above. Summary of the Invention

[0007] This invention provides a magnetic tile mold punch preparation device and its preparation process based on plasma cladding. It can solve the problem in the prior art where the lower punch preparation is mechanically connected by the weld between the insert and the substrate, resulting in a large area of ​​unbonded "hollow" region between the insert and the substrate, which leads to poor reliability and easy early failure.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A device for preparing magnetic tile mold punches based on plasma cladding includes a worktable with two columns mounted on it. A multi-axis moving mechanism is installed between the two columns. A plasma gun is mounted on the drive end of the multi-axis moving mechanism, and the multi-axis moving mechanism drives the plasma gun to move in three axes. The plasma gun has a wiring interface on its side, and feed tubes on both sides. A mounting base for securing the feed tubes is also provided on the plasma gun. An anode nozzle is located at the lower end of the plasma gun, and a gun head is mounted on the outside of the lower end. A guide channel is provided between the gun head and the lower end of the plasma gun, and the guide channel is inclined and guides the anode nozzle at its lower end. A cladding outlet is located at the lower end of the gun head, near the anode nozzle. A support platform is located inside the two columns on the worktable. A clamping assembly and a multi-axis rotation mechanism are mounted on the support platform. The clamping assembly is used to fix the mold punch, and the multi-axis rotation mechanism drives the clamping assembly and the mold punch to rotate at multiple angles.

[0009] Preferably, the bottom of the support platform is fixedly connected to the workbench, and a circular rotating groove is provided in the middle of the upper part of the support platform, with a multi-axis rotating mechanism installed inside the rotating groove.

[0010] Preferably, the multi-axis rotating mechanism includes a first rotating ring, with first shafts fixedly connected to both ends of the first rotating ring in the longitudinal direction, and a first servo motor for driving the first shafts to rotate is installed on the rotating groove.

[0011] Preferably, a second turntable is sleeved inside the first rotating ring, and a second shaft is fixedly connected to both ends of the second turntable along the warp direction perpendicular to the first shaft. A second servo motor that drives the second shaft to rotate is installed on the first rotating ring.

[0012] Preferably, the clamping assembly includes two electric push rods, which are symmetrically mounted on the second turntable. The telescopic ends of the electric push rods are equipped with clamping blocks, and the two clamping blocks move closer or further apart under the push of the electric push rods.

[0013] Preferably, the second turntable is provided with an induction heating coil on the upper part of the clamping assembly, and a mounting base for connecting the circuit of the induction heating coil is installed on the second turntable.

[0014] Preferably, the multi-axis moving mechanism includes two sets of first drive rails, both sets of first drive rails are installed on the inner side of the corresponding column, a first guide seat is installed on the first drive rail, and a crossbeam is fixedly installed between the two first guide seats.

[0015] Preferably, a second drive guide rail is arranged parallel to the bottom surface of the crossbeam, a second guide seat is slidably arranged on the bottom surface of the second drive guide rail, and a third drive guide rail is fixedly installed on the second guide seat.

[0016] Preferably, both the second and third drive rails are horizontally arranged, and the third drive rail is installed in the vertical direction of the second drive rail. A third guide seat is installed at the bottom of the third drive rail, and a locking seat is fixedly installed on the bottom surface of the third guide seat. A cantilever is detachably installed inside the locking seat, and one end of the cantilever is fixedly connected to the plasma gun. The plasma gun is located above the support platform.

[0017] A manufacturing process for a magnetic tile mold punch preparation device based on plasma cladding as described in any one of claims 1-9 includes the following steps: Step S1: Place the punch base to be processed at the clamping assembly of the support table, and drive the clamping blocks to move towards each other through two electric push rods to automatically center and firmly clamp the punch base; Step S2: Control the multi-axis rotation mechanism, drive the first rotating ring and the second rotating disk to rotate through the first servo motor and the second servo motor respectively, and adjust the inclined or curved surface of the punch head to be welded to the horizontal or the optimal welding posture. Step S3: Activate the induction heating coil to preheat the area to be clad on the punch head to the preset preheating temperature; Step S4: Start the plasma gun and feed pipe to generate a high-temperature plasma arc at the anode nozzle of the plasma gun, and at the same time feed Stellite alloy powder into the plasma arc through the feed pipe, the guide channel and the cladding outlet. Step S5: And coordinate the control of the multi-axis moving mechanism and the multi-axis rotating mechanism to make the anode nozzle of the plasma gun move relative to the surface of the punch along a preset path, and make the molten Stellite alloy powder deposited layer by layer in the area to be clad on the head of the punch to form a metallurgically bonded cladding layer. Step S6: After the cladding is completed, the plasma gun and feed tube stop working, and the punch is cooled to room temperature under the set atmosphere to complete the preparation of the punch.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are: I. This invention achieves automated control of the processing through the coordinated operation of a multi-axis moving mechanism and a multi-axis rotating mechanism. The multi-axis moving mechanism drives the plasma gun to perform precise three-dimensional motion. The multi-axis rotating mechanism drives the clamped punch to rotate at multiple angles. This coordinated control ensures that the complex curved surface of the punch head is always adjusted to the optimal welding position. During this process, the anode nozzle of the plasma gun remains vertical and aligned with the surface to be clad. Stellite alloy powder is fed into the gun head through the feeding pipe and precisely injected into the high-temperature plasma arc from the cladding outlet through the inclined guide channel. After the powder is instantly melted, it is deposited on the preheated punch substrate, thus forming a dense metallurgical bonding layer, completely eliminating the hidden danger of "hollow" areas in traditional processes.

[0019] II. In this invention, the punch is automatically centered and clamped onto a second turntable by a clamping block driven by an electric push rod. An induction heating coil uniformly preheats the head before welding. A first servo motor and a second servo motor drive a first rotating ring and a second turntable, flexibly adjusting the horizontal and tilt angles of the punch. Simultaneously, a three-axis system composed of a first drive rail, a second drive rail, and a third drive rail drives the plasma gun to move precisely. This design not only replaces expensive sheet metal with lower-cost alloy powder but also significantly reduces manual intervention. Production efficiency and stability are thus significantly improved. This solution effectively solves the quality problems of long production cycles and early failures associated with traditional processes while ensuring high hardness, high wear resistance, and non-magnetic properties of the punch head, achieving large-scale, efficient production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the upper structure of the support platform of the present invention; Figure 3 For the present invention Figure 1 A magnified structural diagram at point A; Figure 4 This is a schematic cross-sectional view of the plasma gun structure of the present invention.

[0021] The components are as follows: 1. Workbench; 2. Column; 3. First drive guide rail; 4. Crossbeam; 5. Second drive guide rail; 6. Third drive guide rail; 7. Third guide seat; 8. Locking seat; 9. Cantilever; 10. Plasma gun; 11. Line interface; 12. Feed pipe; 13. Fixed seat; 14. Gun head; 15. Material guide channel; 16. Cladding outlet; 17. Support platform; 18. First rotating ring; 19. First shaft; 20. First servo motor; 21. Second turntable; 22. Second shaft; 23. Second servo motor; 24. Induction heating coil; 25. Mounting seat; 26. Clamping block; 27. Electric push rod; 28. Anode nozzle. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0023] Example 1: Please see Figure 1-4 The present invention provides a technical solution: A magnetic tile mold punch preparation device based on plasma cladding includes a worktable 1, on which two columns 2 are installed, and a multi-axis moving mechanism is installed between the two columns 2. A plasma gun 10 is installed at the drive end of the multi-axis moving mechanism, and the multi-axis moving mechanism drives the plasma gun 10 to move in three axes. The plasma gun 10 has a line interface 11 on its side, and feed tubes 12 on both sides of the plasma gun 10. A fixing seat 13 for fixing the feed tubes 12 is provided on the plasma gun 10. An anode nozzle 28 is provided at the lower end of the plasma gun 10. A gun head 14 is installed on the outside of the lower end of the plasma gun 10. A guide channel 15 is provided between the gun head 14 and the lower end of the plasma gun 10. The guide channel 15 is inclined and guides the anode nozzle 28 at its lower end. A cladding outlet 16 is provided at the lower end of the gun head 14 at the anode nozzle 28. A support platform 17 is provided on the worktable 1 inside the two columns 2. A clamping assembly and a multi-axis rotation mechanism are installed on the support platform 17. The clamping assembly is used to fix the mold punch. The multi-axis rotation mechanism drives the clamping assembly and the mold punch to rotate at multiple angles.

[0024] Through the above scheme, the device controls the relative movement between the plasma gun 10 and the mold punch by cooperating with a multi-axis moving mechanism and a multi-axis rotating mechanism. During operation, the multi-axis moving mechanism drives the plasma gun 10 to perform precise three-axis spatial movement, namely, movement in the up-down, forward-backward, and left-right directions, in order to plan a complete cladding path. At the same time, the multi-axis rotating mechanism drives the clamping assembly and its fixed punch to rotate at multiple angles, which allows complex parts such as inclined or curved surfaces on the punch to always be adjusted to a horizontal or optimal cladding posture.

[0025] Through the aforementioned movement, the anode nozzle 28 of the plasma gun 10 remains vertical and aligned with the surface to be clad. Stellite alloy powder is fed into the gun head 14 through the feed pipe 12, guided by the inclined guide channel 15, and finally precisely injected from the cladding outlet 16 into the high-temperature arc column generated by the plasma gun 10. The powder is instantly melted and then deposited on the punch substrate preheated by the induction heating coil 24, forming a dense metallurgical bonding layer.

[0026] Through the integrated process described above, fully automated continuous operation is achieved from clamping, preheating, cladding to forming. This solves the problems of insufficient adaptability of traditional equipment to complex-shaped punches and reliance on manual intervention in the process, ensuring stable quality control and avoiding the technical difficulties of discrete production processes.

[0027] In some specific implementations, the bottom of the support platform 17 is fixedly connected to the workbench 1, and the workbench 1 provides stable support for the bottom of the support platform 17. A circular rotating groove is provided in the middle of the upper end of the support platform 17, and a multi-axis rotating mechanism is installed inside the rotating groove. The rotating groove provides rotation space for the multi-axis rotating mechanism.

[0028] In some specific embodiments, the multi-axis rotation mechanism includes a first rotating ring 18, with first shafts 19 fixedly connected to both ends of the first rotating ring 18 along its longitudinal direction. A first servo motor 20 is mounted on the rotating groove to drive the first shafts 19 to rotate. The first servo motor 20 drives the first shafts 19 to rotate, thereby causing the entire first rotating ring 18 to rotate around its axis. This is used to realize the rotational freedom of the clamping assembly and the punch in one direction, and to adjust the circumferential angle of the punch.

[0029] In some specific embodiments, a second turntable 21 is fitted inside the first rotating ring 18. The two ends of the second turntable 21, perpendicular to the direction of the first shaft 19, are fixedly connected to a second shaft 22. A second servo motor 23 is mounted on the first rotating ring 18 to drive the second shaft 22 to rotate. The second servo motor 23 drives the second shaft 22 to rotate, causing the second turntable 21 to rotate within the first rotating ring 18 around an axis perpendicular to the first shaft 19. This provides a second degree of rotational freedom, allowing the punch to adjust its tilt angle. The combination of these two degrees of rotational freedom ultimately enables the complex curved surface of the punch head to be flexibly adjusted to the optimal posture suitable for welding.

[0030] In some specific embodiments, the clamping assembly includes two electric push rods 27, which are symmetrically mounted on the second turntable 21. Clamping blocks 26 are mounted on the telescopic ends of the electric push rods 27. The two clamping blocks 26 move closer or further apart under the push of the electric push rods 27. By controlling the synchronous movement of the two electric push rods 27, the two clamping blocks 26 are driven to move towards or away from each other. This enables automatic centering and secure clamping of punch substrates of different diameters, thus providing stable clamping conditions for subsequent preheating and cladding processes.

[0031] In some specific embodiments, the second turntable 21 is equipped with an induction heating coil 24 located on the upper part of the clamping assembly, and a mounting base 25 for connecting the circuit of the induction heating coil 24 is installed on the second turntable 21. The induction heating coil 24 moves with the second turntable 21 and always surrounds the head area of ​​the clamped punch. Before the welding begins, the induction heating coil 24 is energized to rapidly and uniformly preheat the punch substrate using the principle of electromagnetic induction. This effectively reduces thermal stress during the cladding process and prevents cracking of the cladding layer, which is a key step in ensuring the bonding quality.

[0032] Example 2: Please see Figure 1-4Furthermore, in conjunction with Embodiment 1, the multi-axis moving mechanism includes two sets of first drive rails 3. Both sets of first drive rails 3 are installed inside the corresponding columns 2. First guide seats are mounted on the first drive rails 3, and a crossbeam 4 is fixedly installed between the two first guide seats. A set of vertically arranged first drive rails 3 is installed on the inner side of each of the two vertically fixed columns 2. The first guide seat on each first drive rail 3 can move vertically up and down along the rail. The two ends of the crossbeam 4 are fixedly connected to the two first guide seats, thus allowing it to move vertically as a whole with the rise and fall of the first guide seats. This controls the first moving axis of the plasma gun 10 to move vertically, used to adjust the height of the gun head 14 relative to the punch.

[0033] In some specific embodiments, a second drive rail 5 is arranged parallel to the bottom surface of the crossbeam 4, and a second guide seat is slidably arranged on the bottom surface of the second drive rail 5. A third drive rail 6 is fixedly installed on the second guide seat. The second drive rail 5 is horizontally installed on the bottom surface of the crossbeam 4, and its extension direction is consistent with the length direction of the crossbeam 4. The second guide seat can slide horizontally along the second drive rail 5 to control the horizontal lateral movement of the plasma gun 10. The third drive rail 6 is fixedly installed on the second guide seat so that it can move laterally together with the second guide seat. The third drive rail 6 is used to control the horizontal longitudinal movement of the plasma gun 10.

[0034] In some specific implementations, the second drive rail 5 and the third drive rail 6 are both horizontally arranged, and the third drive rail 6 is installed in the vertical direction of the second drive rail 5. A third guide seat 7 is installed at the bottom of the third drive rail 6, and a locking seat 8 is fixedly installed on the bottom surface of the third guide seat 7. A cantilever 9 is detachably installed inside the locking seat 8. One end of the cantilever 9 is fixedly connected to the plasma gun 10, and the plasma gun 10 is located above the support platform 17. The third drive rail 6 is set horizontally, and its extension direction is perpendicular to the second drive rail 5 below. The third guide seat 7 can slide along the third drive rail 6, forming a third moving axis that controls the longitudinal movement of the plasma gun 10 in the horizontal plane. The locking seat 8 is fixedly installed at the bottom of the third guide seat 7 for detachably connecting the cantilever 9, and the other end of the cantilever 9 is fixedly installed with the plasma gun 10. The first drive rail 3 controls the vertical lifting movement, the second drive rail 5 controls the horizontal lateral movement, and the third drive rail 6 controls the horizontal longitudinal movement. Through the coordinated work of the three moving axes, the plasma gun 10 is driven to achieve precise positioning in three-dimensional space and can realize a complete plan for complex trajectory movement. This allows the plasma gun 10 to move precisely to any position above the punch according to the preset program and be aligned with the complex surface to be clad, completing the automated cladding operation.

[0035] The working principle of the plasma cladding-based magnetic tile mold punch preparation device and its preparation process is as follows: First, the punch base is automatically centered by the clamping block 26 driven by two electric push rods 27 and firmly clamped on the second turntable 21. Before the welding begins, the induction heating coil 24 is energized to uniformly preheat the punch head to reduce thermal stress.

[0036] A multi-axis motion mechanism controls the precise movement of the plasma gun 10 in three-dimensional space. Two sets of vertically arranged first drive rails 3, via first guide seats, drive the crossbeam 4 to rise and fall vertically, forming the first moving axis to adjust the height of the gun head 14. A second drive rail 5, horizontally mounted on the bottom surface of the crossbeam 4, controls the horizontal movement of the plasma gun 10 via the horizontal sliding of the second guide seat, forming the second moving axis. A third drive rail 6, fixed to the second guide seat and extending perpendicularly to the second drive rail 5, controls the vertical movement of the plasma gun 10 via the sliding of the third guide seat 7, forming the third moving axis. These three moving axes together ensure that the plasma gun 10 moves precisely along the planned path.

[0037] Meanwhile, a multi-axis rotary mechanism drives the punch to adjust its posture. A first servo motor 20 drives a first shaft 19, causing the first rotating ring 18 and the entire clamping assembly to rotate circumferentially. A second servo motor 23 drives a second shaft 22, causing the second turntable 21 to rotate at an angle within the first rotating ring 18. This combination of rotational degrees of freedom allows any inclined or curved surface on the punch to be flexibly adjusted to a horizontal or optimal welding position.

[0038] Through the aforementioned motion control, the anode nozzle 28 of the plasma gun 10 remains vertical and aligned with the surface to be clad throughout the cladding process. Stellite alloy powder is fed into the gun head 14 through the feed pipe 12, guided by the inclined guide channel 15, and precisely injected into the high-temperature arc column generated by the plasma gun 10 from the cladding outlet 16. The powder melts instantly and deposits on the preheated substrate, forming a dense metallurgical bonding layer. This integrated process achieves fully automated continuous operation from clamping, preheating, cladding to forming, effectively solving the shortcomings of traditional processes.

[0039] A manufacturing process for a magnetic tile mold punch preparation device based on plasma cladding as described in any one of claims 1-9 includes the following steps: Step S1: Place the punch base to be processed at the clamping assembly of the support table 17, and drive the clamping blocks 26 to move towards each other through two electric push rods 27 to automatically center and firmly clamp the punch base. Step S2: Control the multi-axis rotation mechanism, drive the first rotating ring 18 and the second rotating disk 21 to rotate through the first servo motor 20 and the second servo motor 23 respectively, and adjust the inclined or curved surface of the punch head to be welded to the horizontal or the optimal welding posture. Step S3: Activate the induction heating coil 24 to preheat the area to be melted and coated on the punch head to reach the preset preheating temperature; Step S4: Start the plasma gun 10 and the feed pipe 12 to generate a high-temperature plasma arc at the anode nozzle 28. At the same time, feed Stellite alloy powder into the plasma arc through the feed pipe 12, the guide channel 15 and the cladding outlet 16. Step S5: And coordinate the control of the multi-axis moving mechanism and the multi-axis rotating mechanism to make the anode nozzle 28 of the plasma gun 10 move relative to the surface of the punch along a preset path, and make the molten Stellite alloy powder deposited layer by layer in the area to be clad on the head of the punch to form a metallurgically bonded cladding layer. Step S6: After the cladding is completed, the plasma gun 10 and the feed tube 12 stop working, and the punch is cooled to room temperature under the set atmosphere to complete the preparation of the punch.

[0040] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A device for preparing a magnetic tile mold punch based on plasma cladding, comprising a worktable (1), characterized in that: Two columns (2) are installed on the workbench (1), and a multi-axis moving mechanism is installed between the two columns (2). A plasma gun (10) is installed at the drive end of the multi-axis moving mechanism, and the multi-axis moving mechanism drives the plasma gun (10) to move in three axes. The plasma gun (10) has a line interface (11) on its side, and feed tubes (12) are provided on both sides of the plasma gun (10). A fixing seat (13) for fixing the feed tubes (12) is provided on the plasma gun (10). An anode nozzle (28) is provided at the lower end of the plasma gun (10). A gun head (14) is installed on the outside of the lower end of the plasma gun (10). A material guide channel (15) is provided between the gun head (14) and the lower end of the plasma gun (10). The material guide channel (15) is inclined and its lower end guides the anode nozzle (28). A cladding outlet (16) is provided at the lower end of the gun head (14) at the anode nozzle (28). A support platform (17) is provided on the worktable (1) inside the two columns (2). A clamping assembly and a multi-axis rotation mechanism are installed on the support platform (17). The clamping assembly is used to fix the mold punch. The multi-axis rotation mechanism drives the clamping assembly and the mold punch to rotate at multiple angles.

2. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 1, characterized in that: The bottom of the support platform (17) is fixedly connected to the workbench (1), and a circular rotating groove is provided in the middle of the upper end of the support platform (17), and a multi-axis rotating mechanism is installed inside the rotating groove.

3. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 2, characterized in that: The multi-axis rotating mechanism includes a first rotating ring (18), with a first shaft (19) fixedly connected to both ends of the first rotating ring (18) in the longitudinal direction, and a first servo motor (20) for driving the first shaft (19) to rotate is installed on the rotating groove.

4. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 3, characterized in that: The first rotating ring (18) is fitted with a second rotating disk (21). The second rotating disk (21) is fixedly connected to the second shaft (22) at both ends of the meridian perpendicular to the direction of the first shaft (19). The first rotating ring (18) is equipped with a second servo motor (23) that drives the second shaft (22) to rotate.

5. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 4, characterized in that: The clamping assembly includes two electric push rods (27), which are symmetrically mounted on the second turntable (21). The telescopic ends of the electric push rods (27) are equipped with clamping blocks (26), and the two clamping blocks (26) move closer or further away under the push of the electric push rods (27).

6. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 5, characterized in that: The second turntable (21) is located on the upper part of the clamping assembly and is provided with an induction heating coil (24), and a mounting base (25) for connecting the circuit of the induction heating coil (24) is installed on the second turntable (21).

7. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 1, characterized in that: The multi-axis moving mechanism includes two sets of first drive rails (3), both sets of first drive rails (3) are installed on the inner side of the corresponding column (2), and a first guide seat is installed on the first drive rail (3), and a crossbeam (4) is fixedly installed between the two first guide seats.

8. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 7, characterized in that: The bottom surface of the crossbeam (4) is provided with a second drive rail (5) parallel to the bottom surface. The bottom surface of the second drive rail (5) is provided with a second guide seat, and a third drive rail (6) is fixedly installed on the second guide seat.

9. The apparatus for preparing magnetic tile mold punches based on plasma cladding according to claim 8, characterized in that: The second drive rail (5) and the third drive rail (6) are both set horizontally, and the third drive rail (6) is installed in the vertical direction of the second drive rail (5). A third guide seat (7) is installed at the bottom of the third drive rail (6). A locking seat (8) is fixedly installed on the bottom surface of the third guide seat (7). A cantilever (9) is detachably installed inside the locking seat (8). One end of the cantilever (9) is fixedly connected to the plasma gun (10). The plasma gun (10) is located above the support platform (17).

10. A manufacturing process for a magnetic tile mold punch preparation device based on plasma cladding as described in any one of claims 1-9, characterized in that, Includes the following steps: Step S1: Place the punch base to be processed at the clamping assembly of the support platform (17), and drive the clamping blocks (26) to move towards each other through two electric push rods (27) to automatically center and firmly clamp the punch base; Step S2: Control the multi-axis rotation mechanism, drive the first rotating ring (18) and the second rotating disk (21) to rotate through the first servo motor (20) and the second servo motor (23) respectively, and adjust the inclined or curved surface of the punch head to be welded to the horizontal or the best welding posture. Step S3: Start the induction heating coil (24) to preheat the area to be melted on the punch head to reach the preset preheating temperature; Step S4: Start the plasma gun (10) and the feed pipe (12) to generate a high-temperature plasma arc at the anode nozzle (28) of the plasma gun (10), and at the same time feed Stellite alloy powder into the plasma arc through the feed pipe (12), the guide channel (15) and the cladding outlet (16). Step S5: And coordinate the control of the multi-axis moving mechanism and the multi-axis rotating mechanism to make the anode nozzle (28) of the plasma gun (10) move relative to the surface of the punch along a preset path, and make the molten Stellite alloy powder deposit layer by layer in the area to be clad on the head of the punch to form a metallurgically bonded cladding layer. Step S6: After the cladding is completed, the plasma gun (10) and the feed tube (12) stop working, and the punch is cooled to room temperature under the set atmosphere to complete the preparation of the punch.

Images