Integrated drilling and polishing device and method for cast iron castings

Abstract

The present application relates to the field of metal combination processing, and discloses a cast iron casting drilling and polishing integrated combination processing device and method, which comprises a drilling machine and a polishing machine; the drilling machine and the polishing machine sequentially perform drilling and polishing work on the parts to form part holes; the drilling machine comprises a drill bit and a drilling driving part, and the polishing machine comprises a polishing rod and a polishing driving part; the polishing rod is located at an eccentric position of the part hole, the outer wall of the polishing rod is in contact with the inner wall of the part hole, and the rotation shaft of the polishing driving part is coaxial with the part hole to be polished, so that the polishing driving part drives the polishing rod to rotate axially along the part hole to be polished. The present application integrates the drilling and polishing processes on the same platform, completes the processing and inner wall polishing of the part hole through the continuous operation of the drilling machine and the polishing machine, reduces the part transfer link, shortens the production cycle, reduces the labor intervention cost, and significantly improves the batch processing efficiency of the parts.

Description

Technical Field

[0001] This invention relates to the field of metal combination processing technology, and in particular to an integrated combination processing device and method for drilling and polishing cast iron castings. Background Technology

[0002] After drilling the mounting holes on the flange, excess metal debris remains on the inner wall and both ends of the hole. Usually, subsequent polishing equipment is needed to polish the inner wall and both ends of the hole to make the mounting hole smooth. However, in the current technology, drilling is done with drilling equipment, and polishing also requires separate polishing equipment. Therefore, the flanges with completed drilling need to be collected and then polished on the polishing equipment, which limits the processing efficiency.

[0003] For example, the prior art publication CN222873846U discloses a pump body flange drilling and polishing integrated machine. This device includes a worktable and an integrated frame. The integrated frame is symmetrically mounted on the top of the worktable. Inside each integrated frame are two sets of movable shafts, movably connected to the integrated frame. Gears are fitted onto the surfaces of each movable shaft, and the two sets of gears mesh with each other. A clamping motor is mounted on the top of each integrated frame, and the output end of the clamping motor is connected to one of the movable shafts. Clamping arms are mounted on the surfaces of the movable shafts on one side of the gears, and a drive motor is mounted on the end of each clamping arm away from the integrated frame. This device not only enables convenient linkage and counter-rotation clamping and fixing of the pump body flange and convenient circumferential rotation for changing polishing equipment, facilitating continuous drilling of the pump body flange and sequential polishing after drilling, but also improves the convenience of drilling and polishing.

[0004] In the prior art, the spacing between the drilling mechanism and the polishing mechanism is fixed. After drilling is completed, the polishing mechanism and the drilling mechanism need to be swapped so that the polishing and drilling work can be completed in sequence. Therefore, in the actual processing environment, several consecutive holes (such as the holes around the flange) need to be drilled and polished separately. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] This invention provides an integrated drilling and polishing device and method for cast iron castings, which can solve the problem of poor connection between drilling and polishing in existing technologies. The specific solution is as follows: On one hand, the present invention provides an integrated processing device for drilling and polishing cast iron castings, including a drilling machine and a polishing machine; the drilling machine and the polishing machine sequentially perform drilling and polishing operations on the parts to form holes in the parts; the drilling machine includes a drill bit and a drilling drive component, and the polishing machine includes a polishing rod and a polishing drive component; During polishing, the polishing rod is positioned eccentrically within the part hole. By eccentrically mounting the polishing rod inside the part hole and coaxially rotating it with the polishing drive, the outer wall of the polishing rod is ensured to uniformly contact the inner wall of the part hole. The adjusting component, through the sliding of the fixed block and the adjusting block and the positioning of bolts, flexibly adjusts the axial distance between the polishing rod and the polishing drive to meet the polishing requirements of part holes of different diameters, demonstrating outstanding versatility. The outer wall of the polishing rod contacts the inner wall of the part hole, and the rotation axis of the polishing drive is coaxial with the part hole to be polished, causing the polishing drive to drive the polishing rod to rotate axially along the part hole to be polished. By integrating the drilling and polishing processes onto the same platform, the continuous operation of the drilling machine and the polishing machine completes the processing of the part hole and the polishing of its inner wall. The connection between drilling and polishing is smoother, reducing the number of intermediate parts, shortening the production cycle, reducing manual intervention costs, and significantly improving the batch processing efficiency of parts.

[0007] Preferably, an adjusting component is connected between the polishing rod and the polishing drive component, and the adjusting component is used to adjust the distance between the central axis of the polishing rod rotation shaft and the central axis of the polishing drive component.

[0008] Preferably, a telescopic rod is installed above the drilling drive and the polishing drive. The telescopic rod drives the drilling drive and the polishing drive to move up and down. A synchronization component is installed on the top of the drilling drive and the polishing drive, and the synchronization component is connected to the telescopic rod. By connecting the top of the drilling drive and the polishing drive through the synchronization component, the telescopic rod drives the lifting and lowering in a unified manner. The synchronous pulley and the synchronous belt drive ensure that the two move synchronously, avoiding processing errors caused by displacement deviation and improving the connection accuracy of drilling and polishing.

[0009] Preferably, a self-rotating drive is installed on the top of the polishing rod, which is used to drive the polishing rod to rotate.

[0010] Preferably, it also includes a blower assembly that removes debris from the holes of the drilled and polished parts.

[0011] Preferably, a clamp is provided below the part to fix the part to be polished, and the part is transported by the conveyor to the bottom of the drilling machine and the polishing machine.

[0012] Preferably, the adjusting component includes a fixed block and an adjusting block. The fixed block and the adjusting block can slide relative to each other along the limiting structure on their outer walls. The fixed block has several threaded holes, and the adjusting block is fixed to one of the threaded holes by bolts, so that the fixed block and the adjusting block are fixed to each other.

[0013] Preferably, the synchronization component includes a fixed seat and a movable seat, which are slidably connected to each other. A drilling drive is fixedly mounted on the fixed seat. The tops of the drilling drive and the polishing drive are rotatably connected to the fixed seat and the movable seat, respectively, and are both fixedly connected to the timing pulleys. The two timing pulleys are connected by a timing belt drive. The bottom output end of the drilling drive is fixedly connected to the timing pulley on the top of the drilling drive.

[0014] Preferably, a sliding groove is provided at one end of the fixed seat, and a tensioning wheel is slidably installed in the sliding groove. The top of the impeller is fixedly connected to the bottom of the tensioning wheel, and the tensioning wheel is installed at one end of the timing belt to tighten one end of the timing belt.

[0015] On the other hand, the present invention provides an integrated machining method for drilling and polishing cast iron castings, comprising the following steps: S1. Fix the cast iron casting part to be processed, and drill holes in the part through a drilling mechanism to form initial holes; S2. Subsequently, the initial hole is polished by a polishing mechanism, specifically as follows: (1) Place the polishing rod at the eccentric position of the initial hole so that the outer wall of the polishing rod contacts the inner wall of the initial hole; (2) The rotation axis of the polishing drive is set coaxially with the initial hole to be polished; (3) Start the polishing drive to make the polishing rod rotate along the axis of the initial hole, thereby polishing the inner wall of the initial hole to form the final part hole.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. This invention integrates drilling and polishing processes on the same platform, and completes the processing of holes and inner wall polishing of parts through continuous operation of drilling and polishing machines. The connection between drilling and polishing is smoother, reducing the intermediate links of parts, shortening the production cycle, reducing the cost of manual intervention, and significantly improving the batch processing efficiency of parts.

[0017] 2. This invention ensures that the outer wall of the polishing rod is evenly in contact with the inner wall of the part hole by eccentrically installing the polishing rod inside the part hole and coaxially rotating with the polishing drive component. The adjusting component flexibly adjusts the axial distance between the polishing rod and the polishing drive component through the sliding of the fixing block and the adjusting block and the positioning of the bolt, so as to meet the polishing requirements of part holes of different diameters and has outstanding versatility.

[0018] 3. This invention connects the top of the drilling drive and the polishing drive through a synchronization component, and drives them to rise and fall in unison by a telescopic rod. The synchronous pulley and synchronous belt drive ensure that the two move synchronously, avoiding processing errors caused by displacement deviation and improving the connection accuracy of drilling and polishing.

[0019] 4. This invention generates airflow by building an impeller inside the air collection hood, and then sprays it directionally into the hole of the part through a universal bamboo joint air nozzle. This quickly removes the debris generated during drilling and polishing, prevents debris residue from affecting the quality of subsequent processing, improves the working environment, and reduces the burden of manual cleaning.

[0020] 5. This invention achieves rapid clamping of parts through a bidirectional screw and clamping block, and the conveyor frame works with the bracket to adjust the position of the equipment; the telescopic component is linked with the rack and gear to automatically tighten the synchronous belt, and combined with the radial movement function of the bracket, it can adapt to parts of different sizes and hole spacings, thus expanding the applicability of the equipment.

[0021] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a perspective view of the entire invention; Figure 2 This is a perspective view of the drilling machine, polishing machine, and parts of the present invention; Figure 3 This is a perspective view of the drilling machine and polishing machine of the present invention; Figure 4 This is a perspective view of the polishing rod of the present invention; Figure 5 This is a front view of the drilling machine and polishing machine of the present invention; Figure 6 This is a schematic diagram of the synchronous pulley of the present invention; Figure 7 This is a cross-sectional view of the drilling machine of the present invention; Figure 8 This is a perspective view of the synchronization component of the present invention; Figure 9 This is an exploded view of the synchronization component of the present invention; Figure 10 This is a partial structural cross-sectional view of the drilling machine of the present invention; Figure 11 This is a schematic diagram of the structure of the movable seat of the present invention; Figure 12 This is a top view of the part of the present invention.

[0023] The accompanying figure is labeled as follows: 1. Part; 2. Part hole; 3. Drill bit; 4. Drilling drive; 5. Polishing rod; 6. Polishing drive; 7. Fixing block; 8. Adjusting block; 9. Rotation drive; 10. Telescopic rod; 11. Fixed seat; 12. Movable seat; 13. Drilling drive; 14. Synchronous pulley; 15. Synchronous belt; 16. Air collection hood; 17. Impeller; 18. Air nozzle; 19. Limiting post; 20. Limiting frame; 21. Limiting groove; 22. Telescopic component; 23. Sliding groove; 24. Tensioning wheel; 25. Drive sleeve; 26. Protrusion; 27. Groove; 28. Rotating groove; 29. ​​Threaded sleeve; 30. Threaded rod; 31. Rack; 32. Gear; 33. Conveyor frame; 34. Clamping block; 35. Bidirectional screw; 36. Clamping drive; 37. Support. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0025] Example 1: As Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides an integrated drilling and polishing processing device for cast iron castings, including a drilling machine and a polishing machine; the drilling machine and the polishing machine sequentially perform drilling and polishing operations on part 1 to form part hole 2; the drilling machine includes a drill bit 3 and a drilling drive component 4, and the polishing machine includes a polishing rod 5 and a polishing drive component 6; in this embodiment, part 1 is a flange; the drilling drive component 4 is a component for mounting the drill bit 3, that is, the drill bit 3 chuck, which is a commonly used component in the prior art, and different drill bits 3 can be easily switched.

[0026] It should be noted that a drill chuck is a mechanical device used to hold rotating tools such as drill bits and taps, and is widely used in equipment such as electric drills, bench drills, and milling machines. Its core function is to secure the tool with reliable clamping force, ensuring stability and accuracy during rotation. When a wrench is inserted into the side hole and rotated, the torque of the wrench is converted into axial thrust through internal gears or screws, pushing the chuck jaws to move towards the center along the helical groove inside the body, thereby clamping the drill bit; rotating in the opposite direction releases the clamp. Self-tightening chucks rely on the rotation of the sleeve to drive the wedge or helical sleeve, using the principle of inclined planes to automatically tighten the chuck jaws (similar to hand-tightening screws).

[0027] It should be noted that the polishing rod 5 can be made of one of the following materials: 1. Stainless steel: One of the most commonly used materials (such as 304 and 316 stainless steel). Stainless steel has high corrosion resistance (it may come into contact with polishing fluid and coolant during polishing), sufficient strength and good rigidity, which can meet the structural requirements of slender rods (avoiding bending deformation), and it is not easy to rust, making it suitable for most metal hole polishing scenarios (especially precision or humid environments).

[0028] 2. Carbon steel / tool ​​steel: such as 45# steel, T8 / T10 tool steel. Carbon steel has a lower cost and higher strength, but it is prone to rust and usually requires surface treatment (such as chrome plating or blackening) to improve corrosion resistance. It is mostly used in ordinary polishing scenarios where rust prevention requirements are not high.

[0029] 3. Brass / Copper: In some cases, soft metals (such as brass) are used. Its advantage is that it is softer and less likely to scratch the hole wall when it comes into slight contact with the workpiece during polishing (especially suitable for fine polishing or soft metal inner holes), but it has lower strength and is only suitable for small diameter, low-load polishing operations.

[0030] 4. Aluminum alloys: Lightweight and with moderate strength, suitable for light-load or small polishing equipment. However, their corrosion resistance is generally poor, and contact with strong corrosive media should be avoided, thus limiting their application range.

[0031] 5. Engineering Plastics / Composite Materials: In a few special scenarios (such as clean environments or anti-magnetic requirements), high-strength plastics (such as POM, nylon) or carbon fiber composites may be used. These materials are non-magnetic and lightweight, but their rigidity and wear resistance are lower than those of metals, and they are only suitable for low-pressure, low-precision auxiliary polishing.

[0032] During the polishing process, the polishing rod 5 is located at an eccentric position in the part hole 2, and the outer wall of the polishing rod 5 is in contact with the inner wall of the part hole 2. The rotation axis of the polishing drive 6 is coaxial with the part hole 2 to be polished, so that the polishing drive 6 drives the polishing rod 5 to rotate axially along the part hole 2 to be polished.

[0033] In the above scheme, a hole is drilled in part 1 by drill bit 3, thereby forming part hole 2 around part 1, and the inner wall of part 1 is polished by polishing rod 5.

[0034] As one possible implementation, such as Figure 4As shown, an adjusting component is connected between the polishing rod 5 and the polishing drive 6. The adjusting component is used to adjust the distance between the central axis of the rotating shaft of the polishing rod 5 and the central axis of the polishing drive 6. The adjusting component includes a fixing block 7 and an adjusting block 8. The fixing block 7 and the adjusting block 8 can slide relative to each other along the limiting structure on their outer walls. The fixing block 7 has several threaded holes. The adjusting block 8 is fixed to one of the threaded holes by bolts, so that the fixing block 7 and the adjusting block 8 are fixed to each other, thereby fixing the distance between the central axis of the polishing rod 5 and the central axis of the polishing drive 6. If it is necessary to polish parts 1 of other diameters, they are fixed to the other threaded holes by bolts, thereby adjusting the distance between the central axis of the polishing rod 5 and the central axis of the polishing drive 6.

[0035] As one possible implementation, such as Figure 4 As shown, a self-rotating drive 9 is installed on the top of the polishing rod 5. The self-rotating drive 9 is used to drive the polishing rod 5 to rotate. The self-rotating drive 9 is fixedly installed on the top of the adjusting block 8. The bottom of the polishing drive component 6 is fixedly connected to the top of the fixing block 7.

[0036] As one possible implementation, such as Figure 3 As shown, a telescopic rod 10 is installed above the drilling drive 4 and the polishing drive 6. The telescopic rod 10 can be a hydraulic rod or a pneumatic rod. The telescopic rod 10 drives the drilling drive 4 and the polishing drive 6 to move up and down, thereby causing the drill bit 3 and the polishing rod 5 to move up and down. A synchronization component is installed on the top of the drilling drive 4 and the polishing drive 6. The synchronization component is connected to the telescopic rod 10.

[0037] like Figure 5 , Figure 6 As shown, the synchronization assembly includes a fixed base 11 and a movable base 12, which are slidably connected to each other. A drilling drive 13 is fixedly mounted on the fixed base 11. The tops of the drilling drive 4 and the polishing drive 6 are rotatably connected to the fixed base 11 and the movable base 12, respectively, and are both fixedly connected to the synchronous pulleys 14. The two synchronous pulleys 14 are connected by a synchronous belt 15. The bottom output end of the drilling drive 13 is fixedly connected to the synchronous pulley 14 on the top of the drilling drive 4, thereby driving the synchronous pulley 14 to rotate. Under the transmission action of the synchronous belt 15, the polishing drive 6 also rotates synchronously.

[0038] It should be noted that the aforementioned timing pulley 14 can be a belt pulley or a sprocket, and the timing belt 15 can be a belt or a chain.

[0039] As one possible implementation, such as Figure 7As shown, it also includes a blower assembly, which removes debris from the drilled and polished part hole 2. The blower assembly includes a gas collection hood 16, an impeller 17 is installed inside the gas collection hood 16, the top of the gas collection hood 16 is fixed to the outer wall of the fixing base 11, the top of the gas collection hood 16 is open, the middle of the gas collection hood 16 has a flange structure that matches the impeller 17, and the bottom of the gas collection hood 16 is connected to two air nozzles 18. The air nozzles 18 are made of universal bamboo joint tubes and have the characteristic of being shapeable, which can freely change the orientation angle of the air nozzles 18, so that the two air nozzles 18 are respectively facing the drilled and polished part hole 2.

[0040] As one possible implementation, such as Figure 8 As shown, a limiting post 19 and a limiting frame 20 are fixedly connected to one of the adjacent ends of the fixed base 11 and the movable base 12, respectively. The limiting frame 20 is slidably connected to the limiting groove 21 on the fixed base 11, and the slot on the limiting frame 20 is slidably connected to the limiting post 19.

[0041] As one possible implementation, such as Figure 9 As shown, a telescopic member 22 is fixedly connected between the fixed seat 11 and the movable seat 12. The telescopic member 22 can be a pneumatic rod or a hydraulic rod. The distance between the fixed seat 11 and the movable seat 12 can be adjusted by the telescopic member 22.

[0042] As one possible implementation, such as Figure 9 , Figure 10 As shown, a sliding groove 23 is provided at one end of the fixed base 11, and a tensioning wheel 24 is slidably installed in the sliding groove 23. The top of the impeller 17 is fixedly connected to the bottom of the tensioning wheel 24. The tensioning wheel 24 is installed at one end of the timing belt 15 to tighten one end of the timing belt 15. A drive sleeve 25 is sleeved in the middle of the tensioning wheel 24, and the tensioning wheel 24 is rotatably connected to the drive sleeve 25. A protrusion 26 is connected to the outer wall of the drive sleeve 25, and a groove 27 is provided on the inner wall of the sliding groove 23. The protrusion 26 and the groove 27 are slidably connected.

[0043] As one possible implementation, such as Figure 9 As shown, the fixed base 11 also has a rotating groove 28 inside, and a threaded sleeve 29 is rotatably installed inside the rotating groove 28. A threaded rod 30 is fixedly connected to one end of the drive sleeve 25 near the threaded sleeve 29, and the threaded rod 30 is threadedly connected to the inner wall of the threaded sleeve 29.

[0044] As one possible implementation, such as Figure 11 As shown, a rack 31 is fixedly connected to one end of the movable seat 12 near the fixed seat 11, and a threaded sleeve 29 extends to the outside of the fixed seat 11 and is fixedly connected to a gear 32, with the rack 31 meshing with the gear 32.

[0045] In the above scheme, when the telescopic component 22 adjusts the distance between the fixed seat 11 and the movable seat 12, the position of the polishing rod 5 can change. Through the meshing transmission of the rack 31 and the gear 32, the threaded sleeve 29 drives the threaded rod 30 to rotate, thereby driving the drive sleeve 25 to drive the tensioning wheel 24 to move, so that the synchronous belt 15 always remains taut.

[0046] like Figure 1 As shown, a clamp is provided below part 1 to fix part 1 to be polished. Part 1 is conveyed by conveyor frame 33 to the area below drill bit 3 and polishing rod 5. The clamp includes two clamping blocks 34, a bidirectional screw 35 and a clamping drive 36. The two clamping blocks 34 are slidably connected to the bottom of conveyor frame 33. The two ends of the bidirectional screw 35 are threaded to the two clamping blocks 34. The clamping drive 36 drives the bidirectional screw 35 to rotate, thereby driving the two clamping blocks 34 to move closer to each other and clamp part 1. The telescopic rod 10 is fixed to conveyor frame 33 by bracket 37. The bracket 37 is fixed to conveyor frame 33 by bolts.

[0047] In the above scheme, such as Figure 12 As shown, the movable seat 12 is moved closer to or further away from the fixed seat 11 by the telescopic component 22, thereby allowing the polishing drive 6 to move on line segment A, thus adapting to different hole spacings B; by moving the bracket 37 radially toward the part 1, the spacing C is adjusted, thereby allowing the equipment to adapt to parts of different sizes.

[0048] Example 2: The technical solution of this example differs from that of Example 1 in that this example provides a method, including the following steps: S1. Loading and clamping of part 1: At the start of processing, part 1 is conveyed by conveyor frame 33 to the work position directly below the drilling machine (including drill bit 3 and drilling drive 4) and polishing machine (including polishing rod 5 and polishing drive 6); the fixture is activated: the clamping drive 36 drives the bidirectional screw 35 to rotate, and the reverse threads at both ends of the bidirectional screw 35 engage with the two clamping blocks 34 respectively, so that the clamping blocks 34 slide along the bottom of the conveyor frame 33 and move closer to each other, firmly clamping part 1 (to prevent displacement during processing); the fixture is fixed to the conveyor frame 33 to ensure that part 1 is aligned with the processing axis.

[0049] S2. Drilling process: Synchronous lifting and driving: When the telescopic rod 10 (hydraulic / pneumatic rod) receives a command to descend, the synchronous component connected to its top moves down accordingly. The synchronous component consists of a fixed seat 11 (on which the drilling drive 4 is mounted) and a movable seat 12 (on which the polishing drive 6 is mounted), which are slidably connected. The drilling drive 13 is fixed to the fixed seat 11, and its output end drives the synchronous wheel 14 on the fixed seat 11 to rotate. The synchronous belt 15 transmits power to the synchronous wheel 14 on the movable seat 12, ensuring that the drilling drive 4 and the polishing drive 6 lift and lower synchronously.

[0050] Drilling execution: When the telescopic rod 10 descends to the point where the drill bit 3 contacts the surface of the part 1, the drilling drive 4 is activated (driven by the drilling drive 13), which drives the drill bit 3 to rotate at high speed to drill the part 1 until the part hole 2 of the required size is formed.

[0051] S3, Polishing process: After drilling is completed, the telescopic rod 10 moves upward to its reset position, and the polishing machine enters the working state. Eccentricity adjustment (to adapt to the diameter of different part holes 2): The polishing rod 5 is connected to the polishing drive 6 through an adjusting component; the adjusting component consists of a fixed block 7 (on which the polishing drive 6 is mounted) and an adjusting block 8 (on which the polishing rod 5 is mounted) and the two slide along the outer wall limiting structure; according to the diameter of the part hole 2, the corresponding threaded hole on the adjusting block 8 is selected and fixed with bolts to the threaded hole of the fixed block 7, thereby adjusting the distance (i.e., eccentricity) between the rotation axis of the polishing rod 5 and the central axis of the polishing drive 6, ensuring that the outer wall of the polishing rod 5 can fit against the inner wall of the part hole 2.

[0052] Composite motion polishing: The polishing drive 6 is started, and its rotation axis is coaxial with the part hole 2, driving the adjustment component and polishing rod 5 to revolve around the axis of the part hole 2; at the same time, the self-rotation drive 9 fixed on the top of the adjustment block 8 is started, directly driving the polishing rod 5 to rotate, so that the outer wall of the polishing rod 5 evenly scrapes the inner wall of the part hole 2, completing the polishing.

[0053] Synchronous lifting: The polishing drive 6 moves downward with the telescopic rod 10 (the synchronous component ensures that it moves up and down in the same manner as the drilling drive 4), so that the polishing rod 5 extends into the hole 2 of the part; after polishing is completed, the telescopic rod 10 moves upward to reset.

[0054] S4. Synchronize component operation: The synchronization component is the core of ensuring drilling and polishing accuracy, and two issues need to be addressed: "synchronous lifting" and "synchronous belt tension". Synchronous lifting: The fixed seat 11 (with the drilling drive 4 installed) and the movable seat 12 (with the polishing drive 6 installed) are slidably connected. The telescopic rod 10 directly drives the two to move up and down synchronously, ensuring that the stroke of the drill bit 3 and the polishing rod 5 are consistent and avoiding misalignment.

[0055] Automatic tension adjustment: When the telescopic component 22 (pneumatic / hydraulic rod) adjusts the distance between the fixed seat 11 and the movable seat 12 (to adapt to different hole spacings B), the rack 31 on the movable seat 12 moves with the change in distance and meshes with the gear 32 outside the fixed seat 11, driving the gear 32 to rotate; the gear 32 is connected to the threaded sleeve 29 (rotatably installed in the rotating groove 28 of the fixed seat 11), and the inner wall of the threaded sleeve 29 is threadedly connected to the threaded rod 30 (fixed to the drive sleeve 25); the rotation of the threaded sleeve 29 will drive the threaded rod 30 to move axially; the drive sleeve 25 is fitted in the middle of the tensioning wheel 24 (rotatable), and the protrusion 26 on its outer wall slides along the groove 27 in the sliding groove 23 of the fixed seat 11, eventually driving the tensioning wheel 24 to move in the sliding groove 23, tightening the synchronous belt 15 (preventing the synchronous belt from loosening and slipping due to changes in distance).

[0056] S5, Accessibility Function Operation: Chip removal (blowing assembly): During drilling and polishing, the impeller 17 inside the air collection hood 16 (the top is fixed to the outer wall of the fixed base 11, and there is a flange in the middle that matches the impeller 17) is activated, generating a negative pressure airflow; the airflow is sprayed into the part hole 2 through the two air nozzles 18 (universal bamboo tubes that can be shaped and changed direction) at the bottom of the air collection hood 16, blowing out the chips and avoiding residues that affect the processing quality.

[0057] Limiting stability: The limiting post 19 (fixed to the fixed seat 11) adjacent to the movable seat 12 is slidably connected to the limiting frame 20 (fixed to the movable seat 12). The limiting frame 20 is embedded in the limiting groove 21 of the fixed seat 11, limiting the relative displacement range of the two and ensuring motion stability.

[0058] To accommodate parts 1 of different specifications: The bracket 37 is fixed to the conveyor frame 33 by bolts and can move radially along the part 1 to adjust the distance between the equipment and the part (distance C) to accommodate parts of different sizes; the telescopic component 22 adjusts the distance between the fixed seat 11 and the movable seat 12 (corresponding to the hole distance B) to further accommodate the holes of parts of different specifications.

[0059] S6. After polishing, the telescopic rod 10 moves upward, the clamping drive motor 36 of the fixture rotates in the opposite direction, and the bidirectional screw 35 drives the clamping block 34 to release part 1; the conveyor frame 33 sends out the processed part 1, and the device returns to the initial state, waiting for the next part 1.

[0060] In summary, this invention integrates drilling and polishing processes onto the same platform, enabling continuous operation of the drilling and polishing machines to complete the processing and inner wall polishing of the part hole 2. This reduces intermediate steps in the part 1 process, shortens the production cycle, lowers manual intervention costs, and significantly improves the batch processing efficiency of part 1. By eccentrically installing the polishing rod 5 inside the part hole 2 and coaxially rotating it with the polishing drive 6, it ensures that the outer wall of the polishing rod 5 uniformly contacts the inner wall of the part hole 2. The adjusting component, through the sliding of the fixing block 7 and the adjusting block 8 and the positioning of bolts, flexibly adjusts the axial distance between the polishing rod 5 and the polishing drive 6, meeting the polishing requirements of part holes 2 with different diameters, demonstrating outstanding versatility. By connecting the tops of the drilling drive 4 and the polishing drive 6 through a synchronous assembly and controlled by the telescopic rod 10, the process is completed. The drive lifts and lowers the machine, and the synchronous pulley 14 and synchronous belt 15 ensure synchronized movement of both, avoiding machining errors caused by displacement deviation and improving the connection accuracy of drilling and polishing. Airflow is generated by the impeller 17 inside the air collection hood 16 and sprayed directionally into the hole 2 of the part through the universal bamboo joint air nozzle 18, quickly removing the debris generated during drilling and polishing, preventing debris residue from affecting the quality of subsequent processing, improving the working environment and reducing the burden of manual cleaning. The bidirectional screw 35 and clamping block 34 enable the rapid clamping of part 1, and the conveyor frame 33 works with the bracket 37 to adjust the position of the equipment. The telescopic component 22 automatically tightens the synchronous belt in conjunction with the rack 31 and gear 32. Combined with the radial movement function of the bracket 37, it can adapt to parts 1 of different sizes and hole spacings, expanding the applicability of the equipment.

[0061] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0063] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0064] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated drilling and polishing processing device for cast iron castings, characterized in that: It includes a drilling machine and a polishing machine; the drilling machine and polishing machine sequentially perform drilling and polishing operations on the parts to form holes in the parts; the drilling machine includes a drill bit and a drilling drive component, and the polishing machine includes a polishing rod and a polishing drive component; During polishing, the polishing rod is located at an eccentric position in the part hole, the outer wall of the polishing rod is in contact with the inner wall of the part hole, and the rotation axis of the polishing drive is coaxial with the part hole to be polished, so that the polishing drive drives the polishing rod to rotate along the axis of the part hole to be polished. A telescopic rod is installed above the drilling drive and the polishing drive. The telescopic rod drives the drilling drive and the polishing drive to move up and down. A synchronization component is installed on the top of the drilling drive and the polishing drive. The synchronization component is connected to the telescopic rod. The synchronization component includes a fixed base and a movable base, which are slidably connected to each other. A drilling drive is fixedly mounted on the fixed base. The tops of the drilling drive and the polishing drive are rotatably connected to the fixed base and the movable base, respectively, and are both fixedly connected to the timing pulleys. The two timing pulleys are connected by a timing belt drive. The bottom output end of the drilling drive is fixedly connected to the timing pulley on the top of the drilling drive. A sliding groove is provided at one end of the fixed base, and a tensioning wheel is slidably installed in the sliding groove. The top of the impeller is fixedly connected to the bottom of the tensioning wheel. The tensioning wheel is installed at one end of the timing belt to tighten one end of the timing belt. It also includes a blower assembly, which includes a gas collection hood. An impeller is installed inside the gas collection hood. The top of the gas collection hood is fixed to the outer wall of the mounting base. The top of the gas collection hood is open. The middle of the gas collection hood has a flange structure that matches the impeller. The bottom of the gas collection hood is connected to and installed with two air nozzles, which are made of universal bamboo joint tubes.

2. The integrated drilling and polishing processing device for cast iron castings as described in claim 1, characterized in that: An adjusting component is connected between the polishing rod and the polishing drive component. The adjusting component is used to adjust the distance between the central axis of the polishing rod's rotation shaft and the central axis of the polishing drive component.

3. The integrated drilling and polishing combined processing device for cast iron castings as described in claim 1, characterized in that: A self-rotating drive is installed at the top of the polishing rod, which is used to drive the polishing rod to rotate.

4. The integrated drilling and polishing processing device for cast iron castings as described in claim 1, characterized in that: A clamp is installed below the part to fix the part to be polished. The part is then transported by a conveyor to the bottom of the drilling machine and the polishing machine.

5. The integrated drilling and polishing combined processing device for cast iron castings as described in claim 2, characterized in that: The adjusting component includes a fixed block and an adjusting block. The fixed block and the adjusting block can slide against each other along the limiting structure on their outer walls. The fixed block has several threaded holes, and the adjusting block is fixed to one of the threaded holes by bolts, so that the fixed block and the adjusting block are fixed to each other.

6. A method for integrated drilling and polishing of cast iron castings, employing the integrated drilling and polishing apparatus for cast iron castings as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Fix the cast iron casting part to be processed, and drill holes in the part through a drilling mechanism to form initial holes; S2. The initial hole is polished using a polishing mechanism, specifically as follows: (1) Place the polishing rod at the eccentric position of the initial hole so that the outer wall of the polishing rod contacts the inner wall of the initial hole; (2) The rotation axis of the polishing drive is set coaxially with the initial hole to be polished; (3) Start the polishing drive to make the polishing rod rotate along the axis of the initial hole, thereby polishing the inner wall of the initial hole to form the final part hole.

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