A drilling device for electric motor roller processing

Abstract

This utility model relates to the field of electric roller machining technology, and discloses a drilling device for electric roller machining, including a worktable. A side plate is fixedly connected to the side wall of the worktable, and a connecting plate is provided on the side wall of the side plate. A sliding sleeve is slidably connected inside the connecting plate, and a drill bit is slidably connected inside the sliding sleeve. A disassembly and assembly assembly is provided inside the sliding sleeve, and a fixing assembly is provided on the upper surface of the worktable. The fixing assembly includes a fixing frame, a mounting plate, a connecting plate, and a support plate. The side wall of the fixing frame is fixedly connected to the upper surface of the worktable, and the side wall of the mounting plate is fixedly connected to the side wall of the fixing frame. In this utility model, a cylinder pushes a sliding column to slide along the fixing cylinder, which drives the connecting block to expand the support plate radially outward along the connecting plate, thereby achieving the effect of the support plate tightly fitting against the inner wall of the electric roller and firmly fixing the workpiece. The above structure improves the fixing stability and adaptability during electric roller machining and ensures drilling accuracy.

Description

Technical Field

[0001] This utility model relates to the field of electric roller machining technology, and in particular to a drilling device for electric roller machining. Background Technology

[0002] As a core component of transmission systems, electric rollers are widely used in conveying machinery, mining equipment, chemical machinery, and other fields. Key parts such as the roller body and end caps require the machining of multiple mounting and positioning holes to meet assembly requirements. Therefore, drilling devices for electric roller machining are crucial equipment for ensuring the production accuracy and efficiency of electric rollers. During the machining process, the drilling quality directly affects the assembly accuracy, operational stability, and service life of the electric roller, while the reliability of workpiece fixation is one of the core factors determining drilling accuracy. With the development of electric rollers towards lightweight, thin-walled, and multi-specification designs, higher requirements are placed on the workpiece fixation method of the drilling device. It is necessary to ensure stable fixation while avoiding damage to the workpiece, and to adapt to the machining needs of electric rollers with different wall thicknesses and diameters. Therefore, the development of a highly adaptable and stable drilling device for electric roller machining has significant practical application value.

[0003] Existing drilling devices for electric roller machining mostly employ an external clamping mechanical structure for workpiece fixation. The technical principle is based on clamping components such as three-jaw chucks, pneumatic grippers, or hydraulic grippers located on both sides of the worktable, which hold and fix the workpiece against the outer wall of the electric roller. Specifically, such devices typically have a clamping bracket built above the worktable, with adjustable clamping units mounted on the bracket. Before machining, the operator places the electric roller between the clamping units and moves the grippers inward manually or pneumatically / hydraulically until the grippers are in close contact with the outer wall of the electric roller. The workpiece is fixed by the friction between the grippers and the outer wall. Some devices also place rubber pads on the inside of the grippers to increase friction and reduce scratches on the workpiece's outer wall. Then, the drilling mechanism is activated to drill holes in the fixed electric roller.

[0004] However, existing drilling devices for electric roller machining with an external clamping structure have significant drawbacks, especially when machining thin-walled electric rollers. Because the external clamping method applies clamping force from outside the workpiece, the clamping force tends to concentrate in a localized area where the jaws contact the workpiece. For thin-walled electric rollers, this concentrated clamping force can easily cause elliptical deformation or localized indentation of the cylinder, affecting not only the coaxiality and perpendicularity of the drilled hole but also making subsequent assembly of the electric roller difficult, and even directly leading to workpiece scrap. Furthermore, the external clamping method relies on friction to fix the workpiece. During drilling, the axial cutting force and radial impact force applied by the drill bit can easily cause slight displacement or rotation of the workpiece, leading to hole position misalignment. This fails to meet the high-precision drilling requirements of electric rollers and seriously affects product quality. Therefore, a drilling device for electric roller machining is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drilling device for electric roller processing, which aims to improve the problems in the prior art where the external clamping method easily leads to deformation of the electric roller, and the workpiece is prone to displacement or rotation during drilling after being fixed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drilling device for electric roller processing includes a worktable, a side plate fixedly connected to the side wall of the worktable, a connecting plate provided on the side wall of the side plate, a sliding sleeve slidably connected inside the connecting plate, a drill bit slidably connected inside the sliding sleeve, a disassembly and assembly component provided inside the sliding sleeve, and a fixing component provided on the upper surface of the worktable.

[0008] The fixing assembly includes a fixing frame, a mounting plate, a connecting plate, and a support plate. The side wall of the fixing frame is fixedly connected to the upper surface of the workbench. The side wall of the mounting plate is fixedly connected to the side wall of the fixing frame. The side wall of the connecting plate is fixedly connected to the side wall of the mounting plate. The side wall of the support plate is slidably connected to the inside of the connecting plate. A fixing cylinder is fixedly connected to the side wall of the connecting plate. A sliding column is slidably connected inside the fixing cylinder. A connecting block is rotatably connected to the side wall of the support plate. One end of the connecting block is rotatably connected to the side wall of the sliding column.

[0009] As a further description of the above technical solution:

[0010] The assembly / disassembly assembly includes ball bearings, the sidewalls of which are slidably connected inside the sliding sleeve and inside the drill bit.

[0011] As a further description of the above technical solution:

[0012] A cylinder is fixedly connected to the side wall of the mounting plate. The output end of the cylinder passes through the connecting plate and is fixedly connected to one end of the sliding column. The side wall of the connecting block is slidably connected inside the fixed cylinder.

[0013] As a further description of the above technical solution:

[0014] Both the sidewall of the side plate and the inside of the connecting plate are rotatably connected to screws. Both the sidewall of the side plate and the top of the connecting plate are fixedly connected to motors. The output end of the motor is fixedly connected to one end of the screw. The screw sidewall of the side plate is threadedly connected to a slider. The sidewall of the connecting plate is fixedly connected to the sidewall of the slider. The inner wall of the sliding sleeve is threadedly connected to the screw sidewall inside the connecting plate. The top of the slider is fixedly connected to a water tank. The sidewall of the water tank is provided with a water spray pipe. One end of the water spray pipe is located on the sidewall of the drill bit.

[0015] As a further description of the above technical solution:

[0016] The sliding sleeve sidewall is fixedly connected to a limit post, and the sliding sleeve sidewall is rotatably connected to a rotating sleeve.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the rotating sleeve is slidably connected to the side wall of the limiting post, and the inner wall of the rotating sleeve is provided with a groove corresponding to the ball.

[0019] As a further description of the above technical solution:

[0020] The rotating sleeve has a sliding block inside, and the side wall of the blocking block is slidably connected inside the sliding sleeve.

[0021] As a further description of the above technical solution:

[0022] A spring is provided inside the rotating sleeve. One end of the spring is fixedly connected inside the rotating sleeve, and the other end of the spring is fixedly connected to the side wall of the locking block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the output end of the cylinder fixed to the side wall of the mounting plate pushes the sliding column to slide along the fixed cylinder, which drives the connecting block linkage support plate to expand radially outward along the connecting plate, thereby achieving the effect of the support plate tightly fitting with the inner wall of the electric roller and firmly fixing the workpiece. This solves the problem that the existing external clamping method is prone to deformation of the electric roller and the workpiece is prone to displacement or rotation during drilling. The above structure improves the fixing stability and adaptability of the electric roller during processing and ensures drilling accuracy.

[0025] 2. In this utility model, by rotating the rotating sleeve on the side wall of the sliding sleeve, the inner wall groove of the rotating sleeve is misaligned or aligned with the ball, and the spring pushes the locking block to lock the rotating sleeve, thereby achieving the effect of quickly disassembling the old drill bit and stably installing the new drill bit without the need for additional tools. This solves the problem that existing drill bit replacement requires special tools, is cumbersome and time-consuming, and is prone to damage to the drill bit or device due to tool compatibility issues. The above structure improves the convenience and efficiency of drill bit replacement and ensures the fixed stability of the drill bit after installation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a drilling device for electric drum machining proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the support plate of a drilling device for electric drum machining proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the fixing cylinder of the drilling device for electric roller processing proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the sliding sleeve of a drilling device for electric drum machining proposed in this utility model;

[0030] Figure 5 This is a structural schematic diagram of the top sectional view of the sliding sleeve of the drilling device for electric drum machining proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the rotating sleeve of a drilling device for electric roller processing proposed in this utility model.

[0032] Legend:

[0033] 1. Workbench; 2. Side plate; 3. Screw; 4. Slider; 5. Motor; 6. Connecting plate; 7. Sliding sleeve; 8. Drill bit; 9. Water tank; 10. Fixing frame; 11. Mounting plate; 12. Cylinder; 13. Connecting plate; 14. Support plate; 15. Connecting block; 16. Fixing cylinder; 17. Sliding column; 18. Ball bearing; 19. Limiting column; 20. Rotating sleeve; 21. Spring; 22. Clamping block. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-3 This utility model provides an embodiment of a drilling device for electric roller processing, including a worktable 1. The worktable 1 provides a stable support reference for the entire device, avoiding the impact of device shaking on drilling accuracy during processing. A side plate 2 is fixedly connected to the side wall of the worktable 1. A connecting plate 6 is provided on the side wall of the side plate 2. A sliding sleeve 7 is slidably connected inside the connecting plate 6. A drill bit 8 is slidably connected inside the sliding sleeve 7. The function of the drill bit 8 is to directly contact the electric roller workpiece and remove material by rotation and cutting to form the required hole, thereby achieving the effect of processing installation holes, positioning holes, etc. A disassembly and assembly component is provided inside the sliding sleeve 7. The disassembly and assembly component is used to quickly disassemble and install drill bits 8 of different specifications, avoiding the cumbersome problem of changing drill bits due to reliance on special tools, thereby improving the efficiency of drill bit 8 replacement and adapting to different hole diameter processing requirements. A fixing component is provided on the upper surface of the worktable 1. The fixing component is used to clamp and fix the electric roller workpiece to prevent the workpiece from shifting or rotating during drilling, thereby ensuring drilling accuracy and reducing the generation of scrap parts.

[0036] The fixing assembly includes a fixing frame 10, a mounting plate 11, a connecting plate 13, and a support plate 14. The side wall of the fixing frame 10 is fixedly connected to the upper surface of the worktable 1. The side wall of the mounting plate 11 is fixedly connected to the side wall of the fixing frame 10. The side wall of the connecting plate 13 is fixedly connected to the side wall of the mounting plate 11. The connecting plate 13 is used to support the support plate 14 and provide a guide rail for the radial sliding of the support plate 14. The side wall of the support plate 14 is slidably connected to the inside of the connecting plate 13. The support plate 14 is used to contact the inner wall of the electric roller and fix the workpiece by the supporting force generated by outward expansion. It cooperates with the connecting block 15 to perform radial expansion movement, so as to achieve the effect of tightly fitting the inner wall of the electric roller with different inner diameters and adapting to workpieces of multiple specifications. A fixing cylinder 16 is fixedly connected to the side wall of the connecting plate 13. A sliding column 17 is slidably connected inside the fixing cylinder 16. A connecting block 15 is rotatably connected to the side wall of the support plate 14. One end of the connecting block 15 is rotatably connected to the sliding column 17. The side wall of the moving column 17 has a connecting block 15, which is used to convert the axial movement of the sliding column 17 into the radial movement of the support plate 14. The sliding column 17 and the support plate 14 move in linkage, so as to achieve the effect of expanding and fixing the support plate 14 through axial drive. The side wall of the mounting plate 11 is fixedly connected to a cylinder 12. The output end of the cylinder 12 passes through the connecting plate 13 and is fixedly connected to one end of the sliding column 17. The cylinder 12 is used to provide driving force for the sliding column 17. The output force is controlled by adjusting the air pressure to adapt to the fixing requirements of electric rollers with different wall thicknesses and to avoid deformation of thin-walled workpieces. The side wall of the connecting block 15 is slidably connected to the inside of the fixed cylinder 16. This connection method is used to ensure that the connecting block 15 always slides along the inner wall of the fixed cylinder 16 during the movement, so as to avoid the uneven force on the support plate 14 caused by the tilt of the connecting block 15, thereby ensuring the synchronicity of the expansion of the support plate 14 and improving the stability of the workpiece fixing.

[0037] Both the side wall of side plate 2 and the interior of connecting plate 6 are rotatably connected to screws 3. The function of screws 3 is to convert rotational motion into linear motion. Both the side wall of side plate 2 and the top of connecting plate 6 are fixedly connected to motors 5, which provide rotational driving force for screws 3. The output end of motor 5 is fixedly connected to one end of screw 3. The side wall of the screw 3 on the side wall of side plate 2 is threadedly connected to a slider 4. The slider 4 is used to connect side plate 2 and connecting plate 6. It works with the screw 3 on the side wall of side plate 2 to perform horizontal sliding motion, so as to drive the connecting plate 6 and drill bit 8 to accurately align the horizontal coordinate of the hole. The side wall of connecting plate 6 is fixedly connected to the side wall of slider 4. The inner wall of sliding sleeve 7 is threadedly connected to the inner wall of connecting plate 6. The screw 3 sidewall of the part is used to convert the rotational motion of the screw 3 into the vertical motion of the sliding sleeve 7, which works in conjunction with the screw 3 inside the connecting plate 6 to perform lifting and lowering motion, so as to achieve the effect of precisely controlling the drilling depth of the drill bit 8. The top of the slider 4 is fixedly connected to the water tank 9, which is used to store coolant to achieve the effect of continuous cooling and chip removal. The sidewall of the water tank 9 is equipped with a water spray pipe, one end of which is located on the sidewall of the drill bit 8. The water spray pipe is used to precisely deliver coolant to the processing area of ​​the drill bit 8 and the workpiece. In conjunction with the water tank 9, the coolant is sprayed to reduce the drilling temperature, reduce tool wear, flush away debris to prevent the hole from being blocked, and ensure that the surface quality of the hole wall meets the standards.

[0038] Reference Figures 4-6 The assembly and disassembly components include ball bearings 18. The ball bearings 18 are used to achieve a detachable connection between the drill bit 8 and the sliding sleeve 7 by sliding themselves. The sidewall of the ball bearing 18 is slidably connected inside the sliding sleeve 7, so that the ball bearing 18 can extend and retract radially within the sliding sleeve 7 to lock or release the drill bit 8. The sidewall of the ball bearing 18 is slidably connected inside the drill bit 8. By partially embedding the ball bearing 18 into the corresponding groove of the drill bit 8, the axial positioning of the drill bit 8 is achieved, preventing the drill bit 8 from falling out of the sliding sleeve 7 during drilling, thus ensuring the stability of the drilling process.

[0039] A limiting post 19 is fixedly connected to the side wall of the sliding sleeve 7, and a rotating sleeve 20 is rotatably connected to the side wall of the sliding sleeve 7. The rotating sleeve 20 is used to change the relative position of its groove and the ball 18 by rotating, and cooperates with the ball 18 to perform clamping or loosening actions, so as to control the disassembly and assembly state of the drill bit 8. The inner wall of the rotating sleeve 20 is slidably connected to the side wall of the limiting post 19, so that the rotating sleeve 20 always slides along the guide of the limiting post 19 when rotating, ensuring that the groove of the rotating sleeve 20 can be accurately aligned with the ball 18. To prevent disassembly and assembly failure due to rotational misalignment, the inner wall of the rotating sleeve 20 is provided with a groove corresponding to the ball 18. The groove is used to accommodate the ball 18. When the groove is aligned with the ball 18, the ball 18 can retract into the groove, releasing the clamping of the drill bit 8. When the groove is misaligned with the ball 18, the inner wall of the rotating sleeve 20 squeezes the ball 18, causing the ball 18 to embed into the groove of the drill bit 8, thus achieving clamping. The ball 18 is used to complete the disassembly and assembly of the drill bit 8, achieving the effect of operation without tools.

[0040] The rotating sleeve 20 has a sliding connection of a locking block 22 inside. The locking block 22 is used to embed into the corresponding positioning groove of the sliding sleeve 7 to lock the position of the rotating sleeve 20. This prevents the rotating sleeve 20 from rotating accidentally during drilling, which could cause the ball bearing 18 to loosen and the drill bit 8 to shift. This ensures the stability of the drill bit 8 during processing. The side wall of the locking block 22 is slidably connected inside the sliding sleeve 7 to ensure that the locking block 22 can be accurately embedded into the positioning groove of the sliding sleeve 7. At the same time, it is easy for the locking block 22 to retract and disengage from the positioning groove when the rotating sleeve 20 rotates, thereby unlocking the rotating sleeve 20 and achieving a flexible switching effect between locking and unlocking actions.

[0041] A spring 21 is installed inside the rotating sleeve 20. The function of the spring 21 is to provide a continuous elastic thrust to the locking block 22, so that the locking block 22 can be stably embedded in the positioning groove of the sliding sleeve 7 when no external force is applied. One end of the spring 21 is fixedly connected to the inside of the rotating sleeve 20, and the other end of the spring 21 is fixedly connected to the side wall of the locking block 22, thereby improving the ease of use of the disassembly and assembly components.

[0042] Working principle: When using this equipment, first, the electric roller to be processed is placed on the outside of the connecting plate 13 and the support plate 14, ensuring that the inner wall of the electric roller is aligned with the support plate 14 and the end face of the workpiece is in contact with the side wall of the mounting plate 11. Then, the cylinder 12 fixed to the side wall of the mounting plate 11 is activated. The output end of the cylinder 12 passes through the connecting plate 13 and pushes the sliding column 17 to slide along the inside of the fixed cylinder 16 fixed to the side wall of the connecting plate 13. When the sliding column 17 moves, the connecting block 15 rotatably connected to its side wall is simultaneously subjected to force. The other end of the connecting block 15 is rotatably connected to the support plate 14, and the side wall of the connecting block 15 slides along the inside of the fixed cylinder 16, thereby pushing the support plate 14 to slide radially along the inside of the connecting plate 13 and expand outward. The support plate 14 expands outward to fit tightly against the inner wall of the electric roller, and the workpiece is firmly fixed by the supporting force to prevent the workpiece from shifting or rotating during drilling. The air pressure of the cylinder 12 can be adjusted to meet the fixing requirements of electric rollers with different wall thicknesses and avoid deformation of thin-walled workpieces.

[0043] By activating the motor 5 fixed to the side wall of side plate 2, the output end of motor 5 drives the screw 3 rotatably connected to the side wall of side plate 2 to rotate. The slider 4 threaded to the side wall of screw 3 slides along the axial direction of screw 3. The connecting plate 6 fixed to the side wall of slider 4 moves synchronously with slider 4, thereby driving the sliding sleeve 7 inside the connecting plate 6 and the drill bit 8 to move horizontally until the drill bit 8 is aligned with the lateral position of the hole to be drilled. At this point, motor 5 stops and locks. Then, motor 5 fixed to the top of connecting plate 6 is activated. The output end of motor 5 drives the screw 3 rotatably connected inside the connecting plate 6 to rotate. Since the inner wall of sliding sleeve 7 is threadedly connected to screw 3, and The sliding sleeve 7 is limited by the inner wall of the connecting plate 6 and cannot rotate. When the screw 3 rotates, it drives the sliding sleeve 7 to slide vertically along the inside of the connecting plate 6, thereby pushing the drill bit 8 to feed towards the electric drum workpiece and complete the drilling action. The feed speed can be controlled by adjusting the speed of the motor 5 to adapt to the drilling needs of electric drums of different materials. During the drilling process, the water spray pipe on the side wall of the water tank 9 at the top of the slider 4 sprays coolant onto the drilling bit 8 and the workpiece processing area. On the one hand, it reduces the drilling temperature and reduces tool wear, and on the other hand, it flushes away the debris generated during drilling to prevent debris from clogging the channel or scratching the hole wall, ensuring that the hole wall roughness meets the standard.

[0044] When it is necessary to remove the old drill bit 8, the rotating sleeve 20 on the side wall of the sliding sleeve 7 is rotated. Since the inner wall of the rotating sleeve 20 is slidably connected to the limiting post 19 fixed to the side wall of the sliding sleeve 7, the limiting post 19 restricts the rotation range of the rotating sleeve 20, preventing excessive rotation. During rotation, the groove on the inner wall of the rotating sleeve 20 corresponding to the ball bearing 18 gradually misaligns with the ball bearing 18. The ball bearing 18, slidably connected inside the sliding sleeve 7, loses its groove limitation and retracts into the sliding sleeve 7, releasing the clamping of the drill bit 8. At this point, the old drill bit 8 can be directly pulled out of the sliding sleeve 7. When installing the new drill bit 8... Insert the new drill bit 8 into the sliding sleeve 7, and rotate the rotating sleeve 20 in the opposite direction so that the groove on the inner wall of the rotating sleeve 20 is aligned with the ball 18 again. Under the pressure of the inner wall of the rotating sleeve 20, the ball 18 pops out towards the inside of the sliding sleeve 7 and partially embeds into the corresponding groove of the new drill bit 8, thus initially fixing the drill bit 8. At the same time, the spring 21 inside the rotating sleeve 20 pushes the sliding block 22 inside it, so that the side wall of the block 22 slides into the positioning groove inside the sliding sleeve 7, locking the position of the rotating sleeve 20 and preventing the rotating sleeve 20 from loosening during drilling, which would cause the ball 18 to shift, thus ensuring that the drill bit 8 is fixed and stable.

Claims

1. A drilling device for electric barrel processing, comprising a worktable (1), characterized in that: The workbench (1) has a side plate (2) fixedly connected to its side wall. The side plate (2) has a connecting plate (6) on its side wall. The connecting plate (6) has a sliding sleeve (7) slidably connected inside. The sliding sleeve (7) has a drill bit (8) slidably connected inside. The sliding sleeve (7) has a disassembly and assembly assembly inside. The workbench (1) has a fixing assembly on its upper surface. The fixing assembly includes a fixing frame (10), a mounting plate (11), a connecting plate (13), and a support plate (14). The side wall of the fixing frame (10) is fixedly connected to the upper surface of the workbench (1). The side wall of the mounting plate (11) is fixedly connected to the side wall of the fixing frame (10). The side wall of the connecting plate (13) is fixedly connected to the side wall of the mounting plate (11). The side wall of the support plate (14) is slidably connected to the inside of the connecting plate (13). A fixing cylinder (16) is fixedly connected to the side wall of the connecting plate (13). A sliding column (17) is slidably connected inside the fixing cylinder (16). A connecting block (15) is rotatably connected to the side wall of the support plate (14). One end of the connecting block (15) is rotatably connected to the side wall of the sliding column (17).

2. A drill device for electrically driven roller processing according to claim 1, characterized in that: The assembly / disassembly assembly includes a ball bearing (18), the sidewall of which is slidably connected inside the sliding sleeve (7), and the sidewall of which is slidably connected inside the drill bit (8).

3. A motorized roller processing drilling device as claimed in claim 1, characterized in that: A cylinder (12) is fixedly connected to the side wall of the mounting plate (11). The output end of the cylinder (12) passes through the connecting plate (13) and is fixedly connected to one end of the sliding column (17). The side wall of the connecting block (15) is slidably connected inside the fixed cylinder (16).

4. The electrically powered roller machining drill according to claim 1, characterized in that: The side wall of the side plate (2) and the inside of the connecting plate (6) are both rotatably connected to screws (3). The side wall of the side plate (2) and the top of the connecting plate (6) are both fixedly connected to motors (5). The output end of the motor (5) is fixedly connected to one end of the screw (3). The side wall of the screw (3) on the side wall of the side plate (2) is threadedly connected to a slider (4). The side wall of the connecting plate (6) is fixedly connected to the side wall of the slider (4). The inner wall of the sliding sleeve (7) is threadedly connected to the side wall of the screw (3) inside the connecting plate (6). The top of the slider (4) is fixedly connected to a water tank (9). The side wall of the water tank (9) is provided with a water spray pipe. One end of the water spray pipe is located on the side wall of the drill bit (8).

5. The electrically powered roller machining drill according to claim 2, characterized in that: The sliding sleeve (7) is fixedly connected to a limit post (19) on its side wall, and a rotating sleeve (20) is rotatably connected to the sliding sleeve (7) on its side wall.

6. A motorized roller machining drilling device according to claim 5, characterized in that: The inner wall of the rotating sleeve (20) is slidably connected to the side wall of the limiting post (19), and the inner wall of the rotating sleeve (20) is provided with a groove corresponding to the ball (18).

7. A motorized roller machining drilling device according to claim 6, characterized in that: The rotating sleeve (20) has a sliding block (22) inside, and the side wall of the blocking block (22) is slidably connected inside the sliding sleeve (7).

8. A motorized roller machining drilling device according to claim 7, characterized in that: A spring (21) is provided inside the rotating sleeve (20). One end of the spring (21) is fixedly connected inside the rotating sleeve (20), and the other end of the spring (21) is fixedly connected to the side wall of the card block (22).

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