A hole silk cleaning machine

Abstract

The utility model relates to a kind of inner hole silk cleaning machine, including fixed plate, the upper and lower of fixed plate near center are respectively fixedly connected with first bearing and second bearing, the inner ring of first bearing is fixedly connected with first connecting shaft, the left and right sides of first connecting shaft are respectively fixedly connected with first mounting seat and second mounting seat, the inside of first mounting seat is fixedly connected with polishing head, transmission part is provided in the inside of second mounting seat, the inner ring of second bearing is fixedly connected with second connecting shaft, the right side of second connecting shaft is fixedly connected with third mounting seat, drive part is provided in the inside of third mounting seat;The utility model forms a stable double support structure, can effectively inhibit the radial jump of shaft when polishing head is operated in inner hole and subjected to uneven resistance, ensure that polishing head always maintains preset relative position with workpiece inner hole thread, to improve the precision and consistency of silk cleaning.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, specifically to an internal hole wire clearing machine. Background Technology

[0002] An internal thread cleaning machine is an industrial device specifically designed for cleaning the internal threads of parts, primarily used in machining, automotive manufacturing, and repair. Its core function is to remove burrs, welding slag, or thread residue from internal holes using a tap mounted in a rotating fixture, ensuring the cleanliness and precision of the internal threads, thereby improving the assembly quality and reliability of the parts. Internal thread cleaning machines typically employ a gear-driven design to rotate the tap at high speed, achieving efficient machining of internal holes and playing a vital role in industrial production.

[0003] Existing internal wire clearing machines mostly employ a single bearing support structure, with a central bearing fixing the connecting shaft and directly connecting the grinding head and drive source (such as a motor or manual crank). While this structure is simple, it has significant drawbacks: because only one bearing provides support, the connecting shaft is prone to radial wobble during rotation, leading to inaccurate positioning of the grinding head, affecting the wire clearing effect and processing quality. Furthermore, the transmission components are often exposed, lacking effective sealing protection, making them susceptible to intrusion of dust, chips, and other debris, causing wear and malfunctions, shortening the equipment's lifespan, and resulting in low efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an internal hole wire clearing machine to solve the problems mentioned in the background section.

[0005] This utility model discloses an internal hole cleaning machine, comprising a fixed plate. A first bearing and a second bearing are fixedly connected to the upper and lower parts of the fixed plate near the center, respectively. A first connecting shaft is fixedly connected to the inner ring of the first bearing. A first mounting seat and a second mounting seat are fixedly connected to the left and right sides of the first connecting shaft, respectively. A grinding head is fixedly connected to the inside of the first mounting seat by a first bolt. A transmission part is provided inside the second mounting seat. A second connecting shaft is fixedly connected to the inner ring of the second bearing. A third mounting seat is fixedly connected to the right side of the second connecting shaft. A drive part is provided inside the third mounting seat for driving the transmission part to rotate. A protective box is fixedly connected to the right side of the fixed plate. Both the drive part and the transmission part are located inside the protective box.

[0006] Based on the above solution, the present invention can also be improved in the following ways.

[0007] Furthermore, the transmission unit includes a transmission gear, and a first connecting block is fixedly connected to the left side of the transmission gear. The first connecting block is inserted into the interior of the first mounting base.

[0008] The above technical solution specifically defines the transmission part as a combination of the first gear and the first connecting block, and adopts a plug-in installation method to form a modular transmission unit. Its beneficial effects are that it makes the connection between the gear and the mounting base more precise and reliable, reduces the vibration caused by transmission clearance, and simplifies the assembly process by plugging in the structure, making it easier to quickly replace or repair transmission components.

[0009] Furthermore, a first countersunk hole is provided in the center of the right side of the transmission gear, and a second bolt is provided inside the first countersunk hole. The end of the second bolt passes through the first connecting block and is threaded into the interior of the second mounting base.

[0010] The above technical solution, through the matching design of the first countersunk hole and the second bolt, prevents the second bolt head from interfering with other components during high-speed rotation, and also facilitates the disassembly and assembly of the transmission gear by the staff.

[0011] Furthermore, the driving unit includes a driving gear that meshes with a transmission gear, and a second connecting block is fixedly connected to the left side of the driving gear. The second connecting block is inserted and fixed inside the third mounting base.

[0012] The above technical solution defines the drive unit as the second gear that meshes with the gear in the transmission unit. Compared with flexible transmission methods such as belt drive or friction drive, gear meshing has higher transmission efficiency, better speed synchronization, and can withstand greater torque load, thus improving the reliability of the clearing machine during operation.

[0013] Furthermore, a second countersunk hole is provided in the middle of the left side of the second connecting shaft, and a third bolt is provided inside the second countersunk hole. The end of the third bolt is threadedly connected to the third mounting base and the second connecting block.

[0014] The above technical solution not only ensures the high concentricity requirement between the shaft and the mounting base, but also eliminates the connection gap through bolt preload, effectively preventing loosening under high-speed rotation, and also facilitates the disassembly and assembly of the transmission gear by the operators.

[0015] Furthermore, a connecting pipe is fixedly connected to the right side of the drive gear, and a rocker arm is fixedly connected inside the connecting pipe by a fourth bolt.

[0016] The above technical solution allows staff to select joysticks of different lengths according to the operating space, and the joysticks can be quickly replaced by removing and installing the fourth bolt, which greatly improves the adaptability and ease of maintenance of the equipment.

[0017] Furthermore, a box frame is integrally formed on the right side of the inner wall of the protective box, and a box cover is installed on the right side of the box frame by screws, with a through hole opened near the center of the box cover.

[0018] In the above technical solution, the box frame serves as a fixed frame to provide an installation reference, and the box cover serves as a movable panel to enable quick opening and closing. Maintenance personnel can replace or maintain the internal gears without disassembling the entire protective box, which reduces the time cost and operational difficulty of daily equipment maintenance.

[0019] Furthermore, an oil dripping pipe is fixedly connected to the center of the top of the protective box, a sealing plug is movably inserted into the top of the oil dripping pipe, and the bottom of the oil dripping pipe is located directly above the transmission part.

[0020] The above technical solution achieves precise lubrication and continuous maintenance through the design of a directional oil drip pipe. The lubricating oil can be directly dripped to the meshing point of the transmission gear through the oil drip pipe. During the rotation of the transmission gear, the lubricating oil is simultaneously applied to the drive gear, reducing lubricant waste. At the same time, the closed-loop refueling avoids the introduction of contamination when the box is opened, allowing the equipment to complete lubrication and maintenance during operation. The sealing plug and the pipe opening adopt a clearance fit, which can be inserted and removed by hand, ensuring daily sealing and preventing leakage, and allowing quick opening when lubrication is needed.

[0021] Furthermore, a base is fixedly connected to the bottom of the fixing plate, and connection holes are provided around the base.

[0022] The above technical solution increases the support surface through the designed base, and at the same time facilitates the installation of the device on the workbench, thereby improving the working stability and operational safety of the equipment.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a first bearing and a second bearing at the upper and lower positions of the fixed plate, and cooperating with the two bearings to fix the two connecting shafts respectively, makes the rotational movement of the upper first connecting shaft and the grinding head constrained by two fulcrums. First, the first bearing provides direct support, and second, the transmission gear at the end meshes with the drive gear, indirectly obtaining auxiliary support from the lower second bearing, forming a stable double support structure. This can effectively suppress the radial runout of the shaft when the grinding head is working in the inner hole and is subjected to uneven resistance, ensuring that the grinding head always maintains a preset relative position with the inner hole thread of the workpiece, thereby improving the accuracy and consistency of wire clearing.

[0024] 2. This utility model physically isolates the external environment by centrally arranging and encapsulating the drive unit and transmission unit in a protective box. The meshing area of ​​the drive gear and transmission gear is completely shielded, preventing metal shavings, dust or other debris generated during processing from intruding into the meshing surface. This allows the first gear and the second gear to operate in a clean environment, which not only reduces the failure rate but also extends the service life of key transmission components. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall front sectional structure of this utility model; Figure 3 This is a right-side view of the fixing plate after the box cover of this utility model has been removed.

[0026] In the diagram: 1. Fixing plate; 2. First bearing; 3. First connecting shaft; 4. First mounting base; 5. Second mounting base; 6. Grinding head; 7. Transmission gear; 8. First connecting block; 9. Second bearing; 10. Second connecting shaft; 11. Third mounting base; 12. Drive gear; 13. Second connecting block; 14. Connecting pipe; 15. Protective box; 1501. Box frame; 16. Box cover; 17. Through hole; 18. Oil drip pipe; 19. Sealing plug; 20. Rocker arm; 21. Base. Detailed Implementation

[0027] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0028] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Example 1: Please see Figure 1-3 This utility model discloses an internal hole cleaning machine, comprising a fixed plate 1. A first bearing 2 and a second bearing 9 are fixedly connected to the upper and lower parts of the fixed plate 1 near the center, respectively. A first connecting shaft 3 is fixedly connected to the inner ring of the first bearing 2. A first mounting seat 4 and a second mounting seat 5 are fixedly connected to the left and right sides of the first connecting shaft 3, respectively. A grinding head 6 is fixedly connected to the inside of the first mounting seat 4 by a first bolt. A transmission part is provided inside the second mounting seat 5. A second connecting shaft 10 is fixedly connected to the inner ring of the second bearing 9. A third mounting seat 11 is fixedly connected to the right side of the second connecting shaft 10. A drive part is provided inside the third mounting seat 11 for driving the transmission part to rotate. A protective box 15 is fixedly connected to the right side of the fixed plate 1. The drive part and the transmission part are both located inside the protective box 15.

[0032] Example 2: In this embodiment, the transmission part includes a transmission gear 7, and a first connecting block 8 is fixedly connected to the left side of the transmission gear 7. The first connecting block 8 is inserted and installed inside the first mounting base 4.

[0033] The above technical solution specifically defines the transmission part as a combination of the first gear and the first connecting block 8, and adopts a plug-in installation method to form a modular transmission unit. Its beneficial effects are that it makes the connection between the gear and the mounting base more precise and reliable, reduces the vibration caused by the transmission gap, and at the same time, the plug-in structure simplifies the assembly process and facilitates quick replacement or maintenance of transmission components.

[0034] Example 3, Based on embodiment 2, in this embodiment, a first countersunk hole is provided in the center of the right side of the transmission gear 7, and a second bolt is provided inside the first countersunk hole. The end of the second bolt passes through the first connecting block 8 and is threaded to the inside of the second mounting base 5.

[0035] The above technical solution, through the matching design of the first countersunk hole and the second bolt, prevents the second bolt head from interfering with other components during high-speed rotation, and also facilitates the disassembly and assembly of the transmission gear 7 by the staff.

[0036] Example 4: Based on Embodiment 2, the driving unit in this embodiment includes a driving gear 12, which meshes with a transmission gear 7. A second connecting block 13 is fixedly connected to the left side of the driving gear 12, and the second connecting block 13 is inserted and fixed inside the third mounting base 11.

[0037] The above technical solution defines the drive unit as the second gear that meshes with the gear in the transmission unit. Compared with flexible transmission methods such as belt drive or friction drive, gear meshing has higher transmission efficiency, better speed synchronization, and can withstand greater torque load, thus improving the reliability of the clearing machine during operation.

[0038] Example 5: Based on embodiment 4, in this embodiment, a second countersunk hole is provided in the middle of the left side of the second connecting shaft 10, and a third bolt is provided inside the second countersunk hole. The end of the third bolt is threadedly connected to the third mounting base 11 and the second connecting block 13.

[0039] The above technical solution not only ensures the high concentricity requirement between the shaft and the mounting base, but also eliminates the connection gap through bolt preload, effectively preventing loosening under high-speed rotation, and also facilitates the disassembly and assembly of the transmission gear 7 by the operators.

[0040] Example 6: Based on embodiment 4, in this embodiment, a connecting pipe 14 is fixedly connected to the right side of the drive gear 12, and a rocker arm 20 is fixedly connected inside the connecting pipe 14 by a fourth bolt.

[0041] The above technical solution allows staff to select different lengths of rocker arms 20 according to the operating space, and the rocker arms 20 can be quickly replaced by removing and installing the fourth bolt, which greatly improves the adaptability and ease of maintenance of the equipment.

[0042] In summary, when using this device, simply insert the tip of the grinding head 8 into the threaded hole of the workpiece, and then hold the rocker arm 20 with one hand to rotate it. This will cause the drive gear 12 to rotate, which in turn will cause the grinding head 6 to rotate, thus performing a thread cleaning operation on the inside of the threaded hole of the workpiece.

[0043] Example 7: In order to effectively protect the drive unit and the transmission unit, in this embodiment, a box frame 1501 is integrally formed on the right side of the inner wall of the protective box 15. A box cover 16 is installed on the right side of the box frame 1501 by screws. A through hole 17 is opened near the middle of the box cover 16.

[0044] In the above technical solution, the box frame 1501 serves as a fixed frame to provide an installation reference, and the box cover 16 serves as a movable panel to enable quick opening and closing. Maintenance personnel can replace or maintain the internal gears without disassembling the entire protective box 15, which reduces the time cost and operational difficulty of daily equipment maintenance.

[0045] Example 8: To facilitate the addition of lubricating oil to the drive unit, this embodiment incorporates an oil injection structure based on embodiment 7.

[0046] Specifically, an oil dripping pipe 18 is fixedly connected to the center of the top of the protective box 15, and a sealing plug 19 is movably inserted into the top of the oil dripping pipe 18. The bottom of the oil dripping pipe 18 is located directly above the transmission part.

[0047] The above technical solution achieves precise lubrication and continuous maintenance through the design of the directional oil drip pipe 18. The lubricating oil can be directly dripped into the meshing point of the transmission gear 7 through the oil drip pipe 18. During the rotation of the transmission gear 7, the lubricating oil is simultaneously applied to the drive gear 12, reducing lubricant waste. At the same time, the closed-loop refueling avoids the introduction of contamination by opening the box, allowing the equipment to complete lubrication and maintenance during operation. The sealing plug 19 is clearance-fitted with the pipe opening, which can be inserted and removed by hand, ensuring daily sealing and preventing leakage, and allowing for quick opening when lubrication is needed.

[0048] Example 9: In this embodiment, a base 21 is fixedly connected to the bottom of the fixing plate 1, and connection holes are provided around the base 21.

[0049] The above technical solution increases the support surface through the designed base 21, and at the same time facilitates the installation of the device on the workbench, thereby improving the working stability and operational safety of the equipment.

[0050] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An internal wire clearing machine, characterized in that, Includes a fixing plate (1), on which a first bearing (2) and a second bearing (9) are fixedly connected above and below the center, respectively; The inner ring of the first bearing (2) is fixedly connected to a first connecting shaft (3), and the left and right sides of the first connecting shaft (3) are respectively fixedly connected to a first mounting seat (4) and a second mounting seat (5). The first mounting seat (4) is fixedly connected to a grinding head (6) by a first bolt, and the second mounting seat (5) is provided with a transmission part. The inner ring of the second bearing (9) is fixedly connected to the second connecting shaft (10), and the right side of the second connecting shaft (10) is fixedly connected to the third mounting base (11). The third mounting base (11) is provided with a driving part for driving the transmission part to rotate. A protective box (15) is fixedly connected to the right side of the fixed plate (1), and the drive unit and transmission unit are both located inside the protective box (15).

2. The internal wire clearing machine according to claim 1, characterized in that: The transmission unit includes a transmission gear (7), and a first connecting block (8) is fixedly connected to the left side of the transmission gear (7). The first connecting block (8) is inserted into the interior of the first mounting base (4).

3. The internal wire clearing machine according to claim 2, characterized in that: The transmission gear (7) has a first countersunk hole in the center on the right side. A second bolt is installed inside the first countersunk hole. The end of the second bolt passes through the first connecting block (8) and is threaded into the interior of the second mounting base (5).

4. The internal wire clearing machine according to claim 2, characterized in that: The drive unit includes a drive gear (12), which meshes with a transmission gear (7). A second connecting block (13) is fixedly connected to the left side of the drive gear (12), and the second connecting block (13) is inserted and fixed inside the third mounting base (11).

5. The internal wire clearing machine according to claim 4, characterized in that: A second countersunk hole is provided in the middle of the left side of the second connecting shaft (10). A third bolt is provided inside the second countersunk hole. The end of the third bolt is threadedly connected to the third mounting base (11) and the second connecting block (13).

6. The internal wire clearing machine according to claim 4, characterized in that: A connecting pipe (14) is fixedly connected to the right side of the drive gear (12), and a rocker arm (20) is fixedly connected inside the connecting pipe (14) by a fourth bolt.

7. The internal wire clearing machine according to claim 1, characterized in that: The inner wall of the protective box (15) is integrally formed with a box frame (1501), and a box cover (16) is installed on the right side of the box frame (1501) by screws. A through hole (17) is opened near the middle of the box cover (16).

8. An internal wire clearing machine according to claim 7, characterized in that: An oil dripping pipe (18) is fixedly connected to the center of the top of the protective box (15). A sealing plug (19) is movably inserted into the top of the oil dripping pipe (18). The bottom of the oil dripping pipe (18) is located directly above the transmission part.

9. An internal wire clearing machine according to claim 1, characterized in that: The bottom of the fixing plate (1) is fixedly connected to a base (21), and the base (21) has connection holes around its perimeter.

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