Drilling and milling device for anti-corrosion and anti-sulfur wear-resistant nickel-based alloy rod and preparation method thereof

Abstract

The application provides a drilling and milling device for anti-corrosion, anti-sulfur and wear-resistant nickel-based alloy rod and a preparation method thereof, and relates to the technical field of drilling and milling equipment. The application comprises an operating table, the top of the operating table is fixedly connected with a support frame, the top of the support frame is provided with a pneumatic cylinder, the bottom of the pneumatic cylinder is provided with a motor, the output end of the motor is provided with a milling cutter, the top of the operating table is provided with an adjusting device, the top of the milling cutter is provided with a connecting device, the adjusting device comprises a limiting sleeve, two limiting sleeves are uniformly fixed on the top of the operating table, when the adjusting device is used, the alloy rod is limited to the inside of the supporting ring, when the position of the alloy rod needs to be changed, the rack is manually controlled to slide between the two limiting sleeves, because the rack and the rectangular block are mutually engaged, when the supporting ring rotates, the cylinder is driven to rotate on the surface of the rotating rod, so that the supporting ring can be well driven to rotate between the two limiting sleeves.

Description

Technical Field

[0001] This invention relates to the field of drilling and milling equipment technology, and in particular to a drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars and its preparation method. Background Technology

[0002] A drilling and milling machine is a device used to process high-temperature corrosion-resistant nickel-based alloy bars. When using a drilling and milling machine, the high-temperature corrosion-resistant nickel-based alloy bar to be processed is confined to the top of the operating table. The milling cutter is rotated by a motor, and then the milling cutter is pressed to the top of the alloy bar by a cylinder, which facilitates the drilling and milling of the alloy bar.

[0003] Existing technologies, such as the invention patent with publication number CN116572018A, disclose an aluminum alloy bar drilling, milling, and grinding equipment. This equipment includes a machine base with a fixing component at one end for clamping and fixing the aluminum alloy bar. A drilling and milling frame is slidably mounted on the machine base, and a drilling and milling seat is fixedly mounted on the frame. A milling cutter seat is slidably mounted on one side of the milling seat, and a cutting tool for drilling and milling is mounted on the cutter seat. Two grinding slides are symmetrically arranged on both sides of the machine base, and a grinding component is slidably mounted on the slides. The fixing component clamps and fixes one end of the aluminum alloy bar to be drilled and milled. Then, with the relative movement of the cutting tool on the drilling and milling frame, both the end and outer surface of the aluminum alloy bar can be drilled and milled. During processing, there is no need for repeated manual adjustment of the cutting tool position, saving operational steps. Drilling, milling, and grinding are performed simultaneously, greatly improving processing efficiency.

[0004] However, the inventors discovered shortcomings in existing drilling and milling equipment during their daily work: First, for nickel-based alloy bars used in sulfur-containing, humid, or corrosive environments, the surface and near-surface layers need to possess excellent corrosion resistance, sulfur resistance, and wear resistance. In conventional machining processes, adjusting the bar angle requires repeated disassembly and reassembly, which is not only cumbersome but also easily scratches the treated functional layer, affecting the integrity of the material surface and its final performance. Second, when multi-angle machining is required, frequent disassembly and clamping not only reduces efficiency but may also lead to bar positional deviations, thus affecting the uniformity and adhesion of subsequent anti-corrosion, anti-sulfur, and wear-resistant coatings. Therefore, there is an urgent need for a drilling and milling device and its preparation method that can quickly and stably adjust the bar angle and is suitable for preparing high-performance anti-corrosion, anti-sulfur, and wear-resistant nickel-based alloy bars. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars and its preparation method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars, comprising an operating table, a support frame fixedly connected to the top of the operating table, a cylinder disposed on the top of the support frame, a motor disposed at the bottom of the cylinder, a milling cutter disposed at the output end of the motor, an adjusting device disposed on the top of the operating table, a connecting device disposed on the top of the milling cutter, the adjusting device comprising limiting sleeves, two limiting sleeves being evenly fixedly fixed to the top of the operating table, a support ring disposed between the two limiting sleeves, a rectangular block being evenly fixedly connected to the surface of the support ring, a rack being slidably connected between the two limiting sleeves, the rack and the rectangular block meshing with each other, grooves being evenly formed on the inner wall of the limiting sleeves, a rotating rod being fixedly connected to the inner wall of the grooves, and a cylinder being rotatably sleeved on the surface of the rotating rod.

[0007] The effect achieved by the above components is as follows: when using the adjustment device, the alloy bar is confined inside the support ring. When it is necessary to change the position of the alloy bar, the rack is manually controlled to slide between the two limit sleeves. Because the rack and the rectangular block mesh with each other, when the support ring rotates, the cylinder is driven to rotate on the surface of the rotating rod. This can effectively drive the support ring to rotate between the two limit sleeves, thereby facilitating the rapid change of the angle of the alloy bar. This can speed up the processing efficiency of the alloy bar to a certain extent.

[0008] Preferably, a support bar is fixedly connected to the inner wall of the support ring, a connecting ring is fixedly connected to one end of the support bar, a sliding rod is uniformly slidably inserted through the surface of the connecting ring, an arc plate is fixedly connected to the end of the sliding rod near the connecting ring, a first threaded rod is rotatably inserted through the top of the support bar, the thread direction of the first threaded rod is opposite from the middle to both sides, a connecting bar is threadedly fitted on the surface of the first threaded rod, and the end of the connecting rod away from the first threaded rod and the end of the sliding rod away from the connecting ring are fixedly connected.

[0009] The effect achieved by the above components is as follows: the alloy rod is slid into the inside of the connecting ring, and the first threaded rod is manually rotated. Because the thread direction on the surface of the first threaded rod is opposite from the middle to both sides, the arc plate fixed at one end of the sliding rod can be driven to press against the surface of the alloy rod, which can effectively restrict the alloy rod inside the support ring.

[0010] Preferably, a storage slot is provided on one side of the operating table, and a movable frame is slidably connected to the inner wall of the storage slot. The end of the movable frame away from the storage slot is fixedly connected to one side of the rack. A second threaded rod is rotatably inserted through one side of the storage slot. The second threaded rod is threaded through one end of the movable frame. A disc is fixedly connected to the end of the second threaded rod away from the storage slot. An L-shaped plate is fixedly connected to one side of the operating table, and a first bolt is threaded through one side of the L-shaped plate.

[0011] The effect achieved by the above components is as follows: the second threaded rod is rotated manually by the disc, which causes the movable frame with the threaded sleeve on the surface of the second threaded rod to slide inside the receiving groove, thereby causing the rack to slide between the two limiting sleeves. When the rack slides to the appropriate position, the first bolt is manually controlled to rotate and then squeezed to one side of the disc. This can prevent accidental contact that could cause the second threaded rod to rotate.

[0012] Preferably, a first damping rod is fixedly connected to the top of the operating table at the end away from the limiting sleeve, a semi-circular sleeve is fixedly connected to the top of the first damping rod, a first spring is sleeved on the surface of the first damping rod, the bottom of the first spring is fixedly connected to the top of the operating table, and the end of the first spring near the first damping rod is fixedly connected to the bottom of the semi-circular sleeve.

[0013] The effect achieved by the above components is as follows: after one end of the alloy rod is confined inside the connecting ring, the other end of the alloy rod is placed on the top of the semi-circular sleeve, and the semi-circular sleeve is pressed away from the operating table by the first spring, so that the alloy rod can be supported by the semi-circular sleeve.

[0014] Preferably, the connecting device includes a connecting sleeve, which is fixedly connected to the output end of the motor. A rectangular strip is fixedly connected inside the connecting sleeve. A rectangular groove is formed on the top of the milling cutter. The inner wall of the rectangular groove is slidably connected to the rectangular strip. Fixing grooves are formed on both sides of the inner wall of the rectangular groove. Fixing strips are slidably connected to the inner wall of the fixing grooves. Connecting grooves are formed on both sides of the rectangular strip. The inner wall of the connecting grooves is slidably connected to the fixing strips.

[0015] The effect achieved by the above components is as follows: when using the connecting device, the milling cutter is manually inserted into the connecting sleeve, then the rectangular strip is inserted into the rectangular groove, and then the fixing strip is slid out of the connecting groove and then slid into the fixing groove. This can restrict the milling cutter to the output end of the motor. Reverse operation makes it easy to disassemble the milling cutter, which facilitates the replacement of the milling cutter.

[0016] Preferably, a second damping rod is fixedly connected to one side of the inner wall of the connecting groove, the end of the second damping rod away from the connecting groove is fixedly connected to one side of the fixing strip, a second spring is sleeved on the surface of the second damping rod, one end of the second spring is fixedly connected to one side of the inner wall of the connecting groove, and the end of the second spring near the second damping rod is fixedly connected to one side of the fixing strip.

[0017] The effect achieved by the above components is that the fixing strip is pressed away from the connecting groove by the second spring, which makes it easier to confine the fixing strip inside the fixing groove.

[0018] Preferably, the surface of the connecting sleeve is uniformly provided with positioning grooves, the inner wall of the positioning groove is slidably connected with a positioning block, the positioning block is fixedly connected to the surface of the milling cutter, the surface of the connecting sleeve is provided with threaded grooves, the portion of the connecting sleeve surface with threaded grooves is threaded with a threaded ring, and one side of the positioning block is provided with a notch.

[0019] The effect achieved by the above components is: the positioning block is slid into the inside of the positioning groove, and then the threaded ring is manually threaded onto the surface of the threaded groove opened on the surface of the connecting sleeve, which makes it easier to confine the positioning block inside the positioning groove.

[0020] Preferably, a support block is fixedly connected to the output end of the motor, and a second bolt is threaded through one side of the support block, the second bolt being slidably connected to the inner wall of the notch.

[0021] The effect achieved by the above components is as follows: when it is necessary to disassemble the milling cutter, manually control one end of the second bolt to pass through the support block and insert it into the inside of the notch, so that the second bolt squeezes the fixing strip back into the inner wall of the connecting groove, which makes it easier to slide the rectangular strip out of the rectangular groove.

[0022] In this invention, by setting an adjustment device, the alloy rod is confined inside the support ring when the adjustment device is used. When it is necessary to change the position of the alloy rod, the rack is manually controlled to slide between the two limiting sleeves. Because the rack and the rectangular block mesh with each other, when the support ring rotates, the cylinder is driven to rotate on the surface of the rotating rod. This can effectively drive the support ring to rotate between the two limiting sleeves, thereby facilitating the rapid change of the angle of the alloy rod. This can speed up the processing efficiency of the alloy rod to a certain extent.

[0023] Secondly, the present invention provides a method for preparing corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy rods, which is processed using the drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy rods as described above, and includes the following steps: Step 1, Clamping and Fixing: Pass the nickel-based alloy rod through the connecting ring and place it on the semi-circular sleeve. Rotate the first threaded rod to drive the arc plate to tighten the rod, thus completing the fixing. Step 2, Angle Adjustment: The rotating disc drives the second threaded rod to rotate, which in turn drives the rack to move linearly. Through the meshing of the rack and the rectangular block, the support ring is rotated to the predetermined angle. The first bolt is tightened to lock the disc, thus completing the angle adjustment. The adjustment device enables the bar to be positioned at any angle within the range of 0-360°, and there is no need to release the clamp on the bar during the angle adjustment process. Step 3, Drilling and Milling: Start the motor to drive the milling cutter to rotate, and use the cylinder to drive the milling cutter to descend to the surface of the bar for drilling and milling. Step 4, Tool Replacement: Unscrew the threaded ring, insert the second bolt into the notch and press the fixing strip (708) to make the fixing strip exit the fixing groove, and remove the old milling cutter; when installing the new milling cutter, insert the rectangular strip into the rectangular groove, and the fixing strip will be locked into the fixing groove under the action of the second spring. Screw on the threaded ring to lock the positioning block to complete the replacement. Step 5, Surface Treatment: After drilling and milling, the surface of the bar is treated with anti-corrosion, anti-sulfurization and wear-resistant treatment to form a protective layer; the anti-corrosion, anti-sulfurization and wear-resistant treatment is carried out by chemical vapor deposition, physical vapor deposition or spraying process to form a tungsten carbide-based composite coating or a nickel-based alloy coating. Attached Figure Description

[0024] Figure 1 This invention presents a three-dimensional structural schematic diagram of a drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars. Figure 2 A three-dimensional structural diagram of the novel rack proposed in this invention; Figure 3 A three-dimensional structural diagram of the novel arc plate proposed in this invention; Figure 4 A three-dimensional structural diagram of the novel cylindrical structure proposed in this invention; Figure 5 A three-dimensional structural diagram of the novel movable frame proposed in this invention; Figure 6 A three-dimensional structural diagram of the novel semi-circular sleeve proposed in this invention; Figure 7 A three-dimensional structural diagram of the novel connecting sleeve proposed in this invention; Figure 8 A three-dimensional structural diagram of the novel positioning block proposed in this invention; Figure 9 This is a three-dimensional structural diagram of the novel threaded ring proposed in this invention.

[0025] Legend: 1. Operating table; 2. Support frame; 3. Cylinder; 4. Motor; 5. Milling cutter; 6. Adjusting device; 601. Limiting sleeve; 602. Support ring; 603. Rectangular block; 604. Rack; 605. Support bar; 606. Connecting ring; 607. First threaded rod; 608. Connecting bar; 609. Sliding rod; 610. Arc plate; 611. Groove; 612. Rotating rod; 613. Cylinder; 614. Storage slot; 615. Moving frame; 616. Second threaded rod; 617. Disc 618. L-shaped plate; 619. First bolt; 620. First damping rod; 621. First spring; 622. Semicircular sleeve; 7. Connecting device; 701. Connecting sleeve; 702. Positioning groove; 703. Positioning block; 704. Rectangular groove; 705. Fixing groove; 706. Notch; 707. Connecting groove; 708. Fixing strip; 709. Second damping rod; 710. Second spring; 711. Threaded groove; 712. Threaded ring; 713. Support block; 714. Second bolt; 715. Rectangular strip. Detailed Implementation

[0026] like Figure 1-9 As shown, this invention provides a drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars. A support frame 2 is fixedly connected to the top of the operating table 1. A cylinder 3 is installed on the top of the support frame 2, and a motor 4 is installed at the bottom of the cylinder 3. A milling cutter 5 is installed at the output end of the motor 4. An adjustment device 6 is installed on the top of the operating table 1, and a connecting device 7 is installed on the top of the milling cutter 5. When using the drilling and milling device, the high-temperature corrosion-resistant nickel-based alloy bar to be processed is confined to the top of the operating table 1. The motor 4 drives the milling cutter 5 to rotate, and then the cylinder 3 squeezes the milling cutter 5 to the top of the alloy bar, which facilitates the drilling and milling of the alloy bar.

[0027] Reference Figures 2 to 6The adjusting device 6 includes two limiting sleeves 601, which are evenly fixed to the top of the operating table 1. A support ring 602 is provided between the two limiting sleeves 601. Rectangular blocks 603 are evenly fixedly connected to the surface of the support ring 602. A rack 604 is slidably connected between the two limiting sleeves 601, and the rack 604 and the rectangular blocks 603 mesh with each other. Grooves 611 are evenly provided on the inner wall of the limiting sleeves 601. A rotating rod 612 is fixedly connected to the inner wall of the grooves 611. A cylinder 613 is rotatably fitted on the surface of the rotating rod 612. When using the adjusting device 6, the alloy rod is limited. Inside the support ring 602, when it is necessary to change the position of the alloy bar, the rack 604 is manually controlled to slide between the two limiting sleeves 601. Because the rack 604 and the rectangular block 603 mesh with each other, when the support ring 602 rotates, the cylinder 613 is driven to rotate on the surface of the rotating rod 612. This can effectively drive the support ring 602 to rotate between the two limiting sleeves 601, reduce friction, make the angle adjustment stable and accurate, avoid repeated disassembly and assembly damage to the surface of the bar, and facilitate quick changes in the angle of the alloy bar. This can speed up the processing efficiency of the alloy bar to a certain extent.

[0028] A support bar 605 is fixedly connected to the inner wall of the support ring 602. A connecting ring 606 is fixedly connected to one end of the support bar 605. A sliding rod 609 is uniformly slidably inserted through the surface of the connecting ring 606. An arc plate 610 is fixedly connected to the end of the sliding rod 609 near the connecting ring 606. A first threaded rod 607 is rotatably inserted through the top of the support bar 605. The thread direction of the first threaded rod 607 is opposite from the middle to both sides. A connecting bar 608 is threadedly fitted onto the surface of the first threaded rod 607. The end of the connecting bar 608 away from the first threaded rod 607 is fixedly connected to the end of the sliding rod 609 away from the connecting ring 606. When the alloy rod is slid into the interior of the connecting ring 606, the first threaded rod 607 is manually rotated. Because the thread direction of the first threaded rod 607 is opposite from the middle to both sides, the arc plate 610 fixed at one end of the sliding rod 609 can be driven to press against the surface of the alloy rod. This can effectively confine the alloy rod inside the support ring 602 and achieve uniform centering clamping.

[0029] A storage slot 614 is provided on one side of the operating table 1. A movable frame 615 is slidably connected to the inner wall of the storage slot 614. The end of the movable frame 615 away from the storage slot 614 is fixedly connected to one side of the rack 604. A second threaded rod 616 is rotatably inserted through one side of the storage slot 614. The second threaded rod 616 is threaded through one end of the movable frame 615. A disc 617 is fixedly connected to the end of the second threaded rod 616 away from the storage slot 614. An L-shaped plate 618 is fixedly connected to one side of the operating table 1. A first bolt 619 is threaded through one side of the L-shaped plate 618. The second threaded rod 616 can be manually rotated by the disc 617. This causes the movable frame 615, which is threaded onto the surface of the second threaded rod 616, to slide inside the storage slot 614, thereby causing the rack 604 to slide between the two limit sleeves 601. When the rack 604 slides to the closed position... When in the appropriate position, manually control the first bolt 619 to rotate and press it against one side of the disc 617. This can, to some extent, prevent accidental contact that could cause the second threaded rod 616 to rotate. The top of the operating table 1 away from the limit sleeve 601 is fixedly connected to the first damping rod 620. The top of the first damping rod 620 is fixedly connected to the semi-circular sleeve 622. The surface of the first damping rod 620 is fitted with a first spring 621. The bottom of the first spring 621 is fixedly connected to the top of the operating table 1. The end of the first spring 621 near the first damping rod 620 is fixedly connected to the bottom of the semi-circular sleeve 622. After one end of the alloy rod is confined inside the connecting ring 606, the other end of the alloy rod is placed on the top of the semi-circular sleeve 622. The first spring 621 presses the semi-circular sleeve 622 away from the operating table 1, which makes it easier to support the alloy rod through the semi-circular sleeve 622.

[0030] Reference Figures 7 to 9The connecting device 7 includes a connecting sleeve 701, which is fixedly connected to the output end of the motor 4. A rectangular strip 715 is fixedly connected inside the connecting sleeve 701. A rectangular groove 704 is formed on the top of the milling cutter 5. The inner wall of the rectangular groove 704 is slidably connected to the rectangular strip 715. Fixing grooves 705 are formed on both sides of the inner wall of the rectangular groove 704. Fixing strips 708 are slidably connected to the inner wall of the fixing grooves 705. Connecting grooves 707 are formed on both sides of the rectangular strip 715. The inner wall of the connecting grooves 707 is slidably connected to the fixing strips 708. When connecting device 7, manually insert the milling cutter 5 into the connecting sleeve 701, then insert the rectangular strip 715 into the rectangular groove 704, and then slide the fixing strip 708 out of the connecting groove 707 and into the fixing groove 705. This restricts the milling cutter 5 to the output end of the motor 4. Reversing the operation makes it easy to remove the milling cutter 5 for replacement. A second damping rod 709 is fixedly connected to one side of the inner wall of the connecting groove 707. The end of the second damping rod 709 away from the connecting groove 707 is fixed to the fixed... One side of the fixing bar 708 is fixedly connected. A second spring 710 is sleeved on the surface of the second damping rod 709. One end of the second spring 710 is fixedly connected to one side of the inner wall of the connecting groove 707. The end of the second spring 710 near the second damping rod 709 is fixedly connected to one side of the fixing bar 708. The fixing bar 708 is pressed away from the connecting groove 707 by the second spring 710, which helps to confine the fixing bar 708 inside the fixing groove 705. The surface of the connecting sleeve 701 is evenly provided with positioning grooves 702. A positioning block 703 is slidably connected to the inner wall. The positioning block 703 is fixedly connected to the surface of the milling cutter 5. A threaded groove 711 is opened on the surface of the connecting sleeve 701. A threaded ring 712 is threadedly fitted on the part of the threaded groove 711 on the surface of the connecting sleeve 701. A notch 706 is opened on one side of the positioning block 703. The positioning block 703 is slid into the inside of the positioning groove 702. Then the threaded ring 712 is manually threaded onto the surface of the threaded groove 711 on the surface of the connecting sleeve 701. This makes it easy to restrict the positioning block 703 inside the positioning groove 702.

[0031] The output end of the motor 4 is fixedly connected to a support block 713. A second bolt 714 is threaded through one side of the support block 713. The second bolt 714 is slidably connected to the inner wall of the notch 706. When the milling cutter 5 needs to be disassembled, one end of the second bolt 714 is manually controlled to pass through the support block 713 and then be inserted into the notch 706, so that the second bolt 714 presses the fixing strip 708 back into the inner wall of the connecting groove 707, which makes it easier to slide the rectangular strip 715 out of the rectangular groove 704.

[0032] Secondly, the present invention provides a method for preparing corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy rods, which are processed using the above-mentioned apparatus and include the following steps: Step 1, clamping and fixing: Pass the nickel-based alloy bar to be processed through the connecting ring 606, place the end of the bar on the semi-circular sleeve 622, rotate the first threaded rod 607 to drive the two connecting bars 608 to move towards each other, and drive the arc plate 610 to clamp the bar synchronously through the sliding rod 609 to ensure that the bar and the support ring 602 are coaxially fixed. Step 2, Angle Adjustment: According to the preset processing path, the rotating disk 617 drives the second threaded rod 616 to rotate, driving the moving frame 615 to slide in the receiving groove 614, thereby driving the rack 604 to move linearly. The rack 604 drives the support ring 602 to rotate to the target angle (e.g., 0°, 45°, 90°, etc.) through meshing with the rectangular block 603. Then, tighten the first bolt 619 to lock the disk 617, completing the angle adjustment. Step 3, Milling and Drilling: Start motor 4 to drive milling cutter 5 to rotate, start cylinder 3 to drive milling cutter 5 to descend to the surface of bar for milling or drilling. During the process, semi-circular sleeve 622, together with first spring 621 and first damping rod 620, absorbs vibration and ensures machining accuracy. Step 4, Tool Replacement: When it is necessary to replace the end mill 5, first unscrew the threaded ring 712, pass the second bolt 714 through the support block 713 and insert it into the notch 706, continue to screw it in so that the end of the second bolt 714 presses against the fixing strip 708, overcoming the force of the second spring 710 and causing the fixing strip 708 to exit the fixing groove 705, so that the old end mill can be pulled out; when installing the new end mill, align the rectangular strip 715 with the rectangular groove 704 and insert it. The fixing strip 708 will automatically lock into the fixing groove 705 under the action of the second spring 710. At the same time, the positioning block 703 will enter the positioning groove 702. Finally, screw on the threaded ring 712 to lock it, and the replacement is completed; Step 5, Surface Treatment: After drilling and milling, the surface of the bar is treated with anti-corrosion, anti-sulfur and wear-resistant treatment, such as chemical vapor deposition, physical vapor deposition or spraying process to form tungsten carbide-based composite coating or nickel-based alloy coating, so that the bar has the ability to serve for a long time in sulfur-containing, humid and wear-prone environments.

[0033] In the above preparation method, the angle adjustment in step two can be completed without removing the rod clamp, avoiding the scratches and stress concentration on the surface of the rod caused by repeated disassembly and assembly in the traditional method. This provides a complete and clean substrate surface for the surface treatment in step five, significantly improving the bonding strength and service life of the anti-corrosion, anti-sulfur, and wear-resistant coating with the substrate.

[0034] The working principle of this invention is as follows: When using the drilling and milling equipment, the high-temperature corrosion-resistant nickel-based alloy rod to be processed is confined to the top of the operating table 1. The motor 4 drives the milling cutter 5 to rotate, and then the cylinder 3 presses the milling cutter 5 against the top of the alloy rod, which facilitates the drilling and milling of the alloy rod. When using the adjusting device 6, the alloy rod is slid into the inside of the connecting ring 606, and the first threaded rod 607 is manually controlled to rotate. Because the thread direction on the surface of the first threaded rod 607 is opposite from the middle to both sides, it can drive the arc plate 610 fixed at one end of the sliding rod 609 to press against the surface of the alloy rod. This can effectively confine the alloy rod inside the support ring 602 and confine one end of the alloy rod inside the connecting ring 606. Then, the other end of the alloy rod is placed on top of the semi-circular sleeve 622. The first spring 621 presses the semi-circular sleeve 622 away from the operating table 1, thus supporting the alloy rod and confining it inside the support ring 602. When the position of the alloy rod needs to be changed, the second threaded rod 616 is manually rotated by the disc 617. This causes the movable frame 615, which is threaded onto the surface of the second threaded rod 616, to slide inside the receiving groove 614, thereby causing the rack 604 to slide between the two limiting sleeves 601. Because the rack 604 and the rectangular block 603 mesh with each other, when the support ring 602 rotates, the cylinder 613 is driven to rotate on the surface of the rotating rod 612. This allows the support ring 602 to rotate effectively between the two limiting sleeves 601. When the rack 604 slides to the appropriate position, the first bolt 619 is manually rotated and pressed against one side of the disc 617. This can, to some extent, prevent accidental contact that could cause the second threaded rod 616 to rotate, thus facilitating a quick change in the angle of the alloy bar. This can, to some extent, accelerate the processing efficiency of the alloy bar. When using the connecting device 7, the milling cutter 5 is manually inserted into the connecting sleeve 701, and then the rectangular bar 715 is inserted into the rectangular groove 704. Then, the fixing bar 708 is slid out of the connecting groove 707 and into the fixing groove 705. The second spring 710 then moves the bar away from the connecting groove 705. Part of the compression fixing strip 708 is used to confine the fixing strip 708 inside the fixing groove 705, thus confining the milling cutter 5 to the output end of the motor 4. Simultaneously, the positioning block 703 slides into the positioning groove 702. Then, the threaded ring 712 is manually threaded onto the surface of the threaded groove 711 on the surface of the connecting sleeve 701, thus confining the positioning block 703 inside the positioning groove 702. Reverse operation facilitates the removal and replacement of the milling cutter 5. When removing the milling cutter 5, one end of the second bolt 714 is manually inserted through the support block 713 into the notch 706, causing the second bolt 714 to compress the fixing strip 708 and push it back into the inner wall of the connecting groove 707.This makes it easier to slide the rectangular strip 715 out of the rectangular groove 704.

[0035] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process, thereby absorbing vibration energy and improving processing stability.

Claims

1. A drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars, comprising an operating table (1), characterized in that: A support frame (2) is fixedly connected to the top of the operating table (1). A cylinder (3) is installed on the top of the support frame (2). A motor (4) is installed at the bottom of the cylinder (3). A milling cutter (5) is installed at the output end of the motor (4). An adjustment device (6) is installed on the top of the operating table (1). A connecting device (7) is installed on the top of the milling cutter (5). The adjustment device (6) includes a limiting sleeve (601). Two limiting sleeves (601) are evenly fixed on the top of the operating table (1). A support ring (602) is provided in the middle of the sleeve (601). A rectangular block (603) is uniformly fixedly connected to the surface of the support ring (602). A rack (604) is slidably connected between the two limiting sleeves (601). The rack (604) and the rectangular block (603) mesh with each other. A groove (611) is uniformly opened on the inner wall of the limiting sleeve (601). A rotating rod (612) is fixedly connected to the inner wall of the groove (611). A cylinder (613) is rotatably sleeved on the surface of the rotating rod (612).

2. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 1, characterized in that: A support bar (605) is fixedly connected to the inner wall of the support ring (602). A connecting ring (606) is fixedly connected to one end of the support bar (605). A sliding rod (609) is uniformly slidably inserted through the surface of the connecting ring (606). An arc plate (610) is fixedly connected to one end of the sliding rod (609) near the connecting ring (606). A first threaded rod (607) is rotatably inserted through the top of the support bar (605). The thread direction of the first threaded rod (607) is opposite from the middle to both sides. A connecting bar (608) is threadedly fitted on the surface of the first threaded rod (607). The end of the connecting bar (608) away from the first threaded rod (607) and the end of the sliding rod (609) away from the connecting ring (606) are fixedly connected.

3. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 1, characterized in that: A storage slot (614) is provided on one side of the operating table (1). A movable frame (615) is slidably connected to the inner wall of the storage slot (614). The end of the movable frame (615) away from the storage slot (614) is fixedly connected to one side of the rack (604). A second threaded rod (616) is rotatably inserted through one side of the storage slot (614). The second threaded rod (616) is threaded through one end of the movable frame (615). A disc (617) is fixedly connected to the end of the second threaded rod (616) away from the storage slot (614). An L-shaped plate (618) is fixedly connected to one side of the operating table (1). A first bolt (619) is threaded through one side of the L-shaped plate (618).

4. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 1, characterized in that: A first damping rod (620) is fixedly connected to the top of the end of the operating table (1) away from the limiting sleeve (601). A semi-circular sleeve (622) is fixedly connected to the top of the first damping rod (620). A first spring (621) is sleeved on the surface of the first damping rod (620). The bottom of the first spring (621) is fixedly connected to the top of the operating table (1). The end of the first spring (621) near the first damping rod (620) is fixedly connected to the bottom of the semi-circular sleeve (622).

5. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 1, characterized in that: The connecting device (7) includes a connecting sleeve (701), which is fixedly connected to the output end of the motor (4). A rectangular strip (715) is fixedly connected inside the connecting sleeve (701). A rectangular groove (704) is provided on the top of the milling cutter (5). The inner wall of the rectangular groove (704) is slidably connected to the rectangular strip (715). Fixing grooves (705) are provided on both sides of the inner wall of the rectangular groove (704). Fixing strips (708) are slidably connected to the inner wall of the fixing grooves (705). Connecting grooves (707) are provided on both sides of the rectangular strip (715). The inner wall of the connecting grooves (707) is slidably connected to the fixing strips (708).

6. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 5, characterized in that: A second damping rod (709) is fixedly connected to one side of the inner wall of the connecting groove (707), and the end of the second damping rod (709) away from the connecting groove (707) is fixedly connected to one side of the fixing strip (708).

7. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 6, characterized in that: A second spring (710) is sleeved on the surface of the second damping rod (709). One end of the second spring (710) is fixedly connected to one side of the inner wall of the connecting groove (707). The end of the second spring (710) near the second damping rod (709) is fixedly connected to one side of the fixing strip (708).

8. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 7, characterized in that: The surface of the connecting sleeve (701) is uniformly provided with positioning grooves (702), and the inner wall of the positioning groove (702) is slidably connected with a positioning block (703).

9. The drilling and milling device for corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars according to claim 8, characterized in that: The positioning block (703) and the milling cutter (5) are fixedly connected on the surface. The connecting sleeve (701) has a threaded groove (711) on its surface. A threaded ring (712) is threaded onto a portion of the threaded groove (711) on the surface of the connecting sleeve (701). A notch (706) is opened on one side of the positioning block (703). A support block (713) is fixedly connected to the output end of the motor (4). A second bolt (714) is threaded through one side of the support block (713). The second bolt (714) is slidably connected to the inner wall of the notch (706).

10. A method for preparing corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy rods, characterized in that, The machining of corrosion-resistant, sulfur-resistant, and wear-resistant nickel-based alloy bars using the drilling and milling equipment described in any one of claims 1-9 includes the following steps: Step 1, clamping and fixing: Pass the nickel-based alloy rod through the connecting ring (606) and place it on the semi-circular sleeve (622). Rotate the first threaded rod (607) to drive the arc plate (610) to clamp the rod and complete the fixing. Step 2, Angle Adjustment: The rotating disc (617) drives the second threaded rod (616) to rotate, driving the rack (604) to move linearly. Through the meshing of the rack (604) and the rectangular block (603), the support ring (602) is driven to rotate to the predetermined angle. The first bolt (619) is tightened to lock the disc (617), thus completing the angle adjustment. In this way, the bar can be positioned at any angle within the range of 0-360° through the adjustment device (6), and there is no need to release the clamp on the bar during the angle adjustment process. Step 3, drilling and milling: Start the motor (4) to drive the milling cutter (5) to rotate, and drive the milling cutter (5) to descend to the surface of the bar material through the cylinder (3) for drilling and milling. Step 4, Tool Replacement: Unscrew the threaded ring (712), insert the second bolt (714) into the notch (706) and press the fixing strip (708) to make the fixing strip (708) exit the fixing groove (705), and remove the old milling cutter; when installing the new milling cutter, insert the rectangular strip (715) into the rectangular groove (704), and the fixing strip (708) will be locked into the fixing groove (705) under the action of the second spring (710). Screw on the threaded ring (712) to lock the positioning block (703) to complete the replacement; Step 5, Surface Treatment: After drilling and milling, the surface of the bar is treated with anti-corrosion, anti-sulfurization and wear-resistant treatment to form a protective layer; the anti-corrosion, anti-sulfurization and wear-resistant treatment is carried out by chemical vapor deposition, physical vapor deposition or spraying process to form a tungsten carbide-based composite coating or a nickel-based alloy coating.

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