A crankcase cover drilling device

Abstract

This utility model relates to the field of crankcase cover drilling technology, specifically a crankcase cover drilling device, including a worktable. A handle of the rotating assembly drives a worm gear to rotate, which meshes with a worm wheel, thereby rotating the turntable to a suitable angle and position to complete the workstation adjustment. After preparation, a control switch starts the motor of the drilling assembly (a commercially available product). The motor drives the threaded screw to rotate, and under the action of threaded transmission, the support moves vertically downwards along the clamping strip, causing the drill bit to gradually approach the workpiece. When the drill bit reaches the appropriate position, the control switch starts the motor in the groove of the support (also a commercially available product). The motor drives the drill bit to rotate at high speed through a coupling, beginning the drilling operation on the crankcase cover. After drilling is completed, the control switch is operated again to reverse the motor, causing the threaded screw to rotate in the opposite direction, raising the support, and removing the drill bit from the workpiece, completing one drilling cycle. Drilling can then proceed to the next position.

Description

Technical Field

[0001] This utility model relates to the field of crankcase cover drilling technology, and in particular to a crankcase cover drilling device. Background Technology

[0002] In the field of mechanical manufacturing, the crankcase cover is a key component of the engine, and its machining accuracy directly affects the engine's performance and reliability.

[0003] Traditional crankcase cover drilling methods often involve manual operation or simple fixed fixtures with general-purpose drilling equipment, resulting in low drilling accuracy, slow efficiency, and high labor intensity. With the trend towards automation and high precision in manufacturing, there is an urgent need for specialized equipment capable of adapting to different crankcase cover specifications, achieving precise positioning and efficient drilling to meet increasing production demands and quality standards.

[0004] To address the shortcomings of traditional drilling methods, this device must meet the following design requirements: First, it must possess high-precision drilling capabilities to ensure that the hole positions of the crankcase cover meet engine assembly requirements; second, it must be able to flexibly adapt to crankcase covers of different sizes and shapes, improving equipment versatility; third, it must enable rapid workstation switching to improve batch production efficiency; and fourth, it must be easy to operate, reducing the labor intensity and skill threshold for operators, thereby lowering production costs and enhancing the company's competitiveness in the market. Utility Model Content

[0005] The purpose of this utility model is to provide a crankcase cover drilling device, which solves the problems mentioned in the background art that traditional crankcase cover drilling methods mostly rely on manual operation or simple fixed tooling with general drilling equipment, resulting in low drilling accuracy, slow efficiency, and high labor intensity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crankcase cover drilling device, comprising a worktable, the worktable being U-shaped, a fixing frame being L-shaped fixedly mounted on the upper surface of the worktable, a drilling assembly being mounted below the fixing frame, a turntable being rotatably connected to the upper surface of the worktable, a fixing assembly being mounted on the upper surface of the turntable, a rotating assembly being mounted below the turntable, and a control switch being mounted on one side of the worktable.

[0007] The drilling assembly includes a motor, the motor is fixedly mounted on the upper surface of the mounting bracket, the motor is electrically connected to a control switch, and a threaded screw is rotatably connected to the lower surface of the mounting bracket, and the threaded screw is fixedly connected to the output shaft of the motor.

[0008] The threaded rod is externally threaded to a support, and two skirts are fixedly installed on both sides of the support. Two locking strips are installed on the side of the fixing frame near the support, and the two locking strips are slidably engaged with the two skirts respectively.

[0009] The support platform has a groove, and an electric motor is fixedly installed inside the groove. The electric motor is electrically connected to a control switch. A drill bit is rotatably connected to the lower surface of the support platform, and the electric motor is fixedly connected to the drill bit through a coupling.

[0010] The fixing component includes movable rods, and three movable rods are rotatably connected to the upper surface of the turntable. A crossbar is fixedly installed at the top of each movable rod, and a threaded rod is threadedly connected to the end of the crossbar away from the movable rod. A handle is fixedly installed at the top of the threaded rod, and a pressure block is fixedly installed at the bottom of the threaded rod.

[0011] The rotating assembly includes a fixed plate. The fixed plate is fixedly installed on the side of the worktable near the control switch. A handle is rotatably connected to one side of the fixed plate. A worm gear is rotatably connected to the side of the fixed plate away from the handle. The worm gear is fixedly connected to the handle. A worm wheel is meshed with one side of the worm gear. The upper surface of the worm wheel is fixedly connected to the turntable.

[0012] This utility model discloses a crankcase cover drilling device. The device features a highly innovative dual-drive design in its drilling assembly. Firstly, a motor drives a threaded screw to achieve the up-and-down feed motion of the bearing platform and drill bit. The threaded drive method offers high precision and low friction, allowing the drill bit to approach and move away from the workpiece at a stable speed, effectively avoiding drilling deviations caused by sudden speed changes. Secondly, an independently installed motor within the bearing platform groove directly drives the drill bit's rotation, ensuring stable drilling power output. Simultaneously, the sliding engagement design between the side skirts of the bearing platform and the fixing bracket's locking strip further enhances the stability of vertical movement. With this dual protection, drilling errors can be controlled within a minimal range, significantly improving the accuracy and precision of crankcase cover drilling. The device prioritizes quality and meets the demands of high-precision machining. The fixed and rotating components work together to exhibit exceptional flexibility and efficiency. The fixed component features three movable rods, a crossbar, a threaded rod, and a pressure block. Operators can quickly adjust the pressure block height by rotating the handle to accommodate crankcase covers of different sizes and shapes, ensuring stable workpiece clamping. In the rotating component, rotating the worm gear via the handle drives the meshing worm wheel and turntable, easily switching between different work positions. This design allows operators to move the workpiece to the next drilling position simply by rotating the turntable after completing a hole, without disassembling the workpiece. This significantly reduces auxiliary machining time and improves overall machining efficiency, making it particularly suitable for batch production scenarios involving multi-position drilling. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the punching component of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixing component of this utility model; Figure 4 This is a three-dimensional structural diagram of the rotating component of this utility model.

[0015] In the diagram: 1. Workbench; 2. Fixing frame; 3. Drilling assembly; 4. Turntable; 5. Fixing assembly; 6. Rotating assembly; 7. Control switch; 8. Motor; 9. Threaded screw; 10. Support; 11. Skirt; 12. Clamping strip; 13. Groove; 14. Motor; 15. Drill bit; 16. Movable rod; 17. Crossbar; 18. Threaded rod; 19. Handle; 20. Pressure block; 21. Fixing plate; 22. Grip; 23. Worm gear; 24. Worm wheel. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] Please see Figures 1-4 This utility model provides a technical solution: a crankcase cover drilling device, including a worktable 1, the worktable 1 is U-shaped, a fixing frame 2 is fixedly installed on the upper surface of the worktable 1, the fixing frame 2 is L-shaped, a drilling component 3 is installed below the fixing frame 2, a turntable 4 is rotatably connected to the upper surface of the worktable 1, a fixing component 5 is installed on the upper surface of the turntable 4, a rotating component 6 is installed below the turntable 4, and a control switch 7 is installed on one side of the worktable 1.

[0018] Please see Figures 1-2The drilling assembly 3 includes a motor 8. The motor 8 is fixedly mounted on the upper surface of the mounting bracket 2 and is electrically connected to a control switch 7. A threaded screw 9 is rotatably connected to the lower surface of the mounting bracket 2 and is fixedly connected to the output shaft of the motor 8. A support 10 is threadedly connected to the external surface of the threaded screw 9. Skirts 11 are fixedly mounted on both sides of the support 10. There are two skirts 11. Two retaining strips 12 are installed on the side of the mounting bracket near the support 10. The two retaining strips 12 slide and engage with the two skirts 11 respectively. A groove 13 is formed in the support 10, and a motor 14 is fixedly mounted inside the groove 13. The motor 14 is electrically connected to the control switch 7. A drill bit 15 is rotatably connected to the lower surface of the support 10. Machine 14 is fixedly connected to drill bit 15 via a coupling. The motor 8 of drilling assembly 3 is started by control switch 7. Motor 8 is a commercially available product. Motor 8 drives threaded screw 9 to rotate. Under the action of threaded transmission, the support 10 moves vertically downward along the retaining strip 12, so that drill bit 15 gradually approaches the workpiece. When drill bit 15 reaches the appropriate position, control switch 7 starts motor 14 in groove 13 of support 10. Motor 14 is a commercially available product. Motor 14 drives drill bit 15 to rotate at high speed through coupling, and starts drilling operation on crankcase cover. After drilling is completed, control switch 7 is operated again to reverse motor 8, drive threaded screw 9 to rotate in the opposite direction, raise support 10, and drill bit 15 leaves the workpiece.

[0019] Please see Figures 1-3 The fixing component 5 includes movable rods 16. Movable rods 16 are rotatably connected to the upper surface of the turntable 4. There are three movable rods 16. A crossbar 17 is fixedly installed at the top of the movable rod 16. A threaded rod 18 is threadedly connected to the end of the crossbar 17 away from the movable rod 16. A handle 19 is fixedly installed at the top of the threaded rod 18. A pressure block 20 is fixedly installed at the bottom of the threaded rod 18. When working, first connect the device to the factory power supply. First, place the crankcase cover on the turntable 4. Rotate the movable rods 16 to the edge of the crankcase cover. Rotate the handle 19 at the top of the threaded rod 18 in the fixing component 5 to press down the pressure block 20 and fix the workpiece firmly on the turntable 4.

[0020] Please see Figures 1-4 The rotating assembly 6 includes a fixed plate 21. The fixed plate 21 is fixedly installed on the side of the worktable 1 near the control switch 7. A handle 22 is rotatably connected to one side of the fixed plate 21. A worm gear 23 is rotatably connected to the side of the fixed plate 21 away from the handle 22. The worm gear 23 is fixedly connected to the handle 22. A worm wheel 24 is meshed on one side of the worm gear 23. The upper surface of the worm wheel 24 is fixedly connected to the turntable 4. According to the drilling requirements, the operator drives the worm gear 23 to rotate through the handle 22 of the rotating assembly 6. The worm gear 23 meshes with the worm wheel 24, thereby rotating the turntable 4 to a suitable angle and position to complete the workstation adjustment.

[0021] Working Principle: First, connect the device to the factory power supply. Place the crankcase cover on the turntable 4. Rotate the movable rod 16 to the edge of the crankcase cover. Rotate the handle 19 at the top of the threaded rod 18 in the fixing assembly 5 to press down the pressure block 20, firmly fixing the workpiece on the turntable 4. Then, according to the drilling requirements, the operator rotates the handle 22 of the rotating assembly 6 to drive the worm gear 23 to rotate. The worm gear 23 meshes with the worm wheel 24, thereby rotating the turntable 4 to the appropriate angle and position, completing the workstation adjustment. Once ready, start the motor 8 of the drilling assembly 3 via the control switch 7. The motor 8 is a commercially available product. The motor 8 drives the threaded rod. 9. Rotation: Under the action of threaded transmission, the bearing 10 moves vertically downward along the retaining bar 12, causing the drill bit 15 to gradually approach the workpiece. When the drill bit 15 reaches the appropriate position, the control switch 7 starts the motor 14 in the groove 13 of the bearing 10. The motor 14 is a commercially available product. The motor 14 drives the drill bit 15 to rotate at high speed through the coupling, starting the drilling operation on the crankcase cover. After drilling is completed, the control switch 7 is operated again to reverse the motor 8, driving the threaded screw 9 to rotate in the opposite direction. The bearing 10 rises, and the drill bit 15 leaves the workpiece, completing one drilling process. To drill at the next position, simply repeat the rotation of the turntable 4 and the drilling operation.

[0022] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A crankcase cover drilling device comprising a worktable (1), characterized in that: The workbench (1) is U-shaped, and a fixing frame (2) is fixedly installed on the upper surface of the workbench (1). The fixing frame (2) is L-shaped, and a drilling component (3) is installed below the fixing frame (2). A turntable (4) is rotatably connected to the upper surface of the workbench (1). A fixing component (5) is installed on the upper surface of the turntable (4). A rotating component (6) is installed below the turntable (4). A control switch (7) is installed on one side of the workbench (1).

2. A crankcase cover drilling apparatus according to claim 1, characterized in that: The drilling assembly (3) includes a motor (8). The motor (8) is fixedly installed on the upper surface of the fixing frame (2). The motor (8) is electrically connected to the control switch (7). A threaded screw (9) is rotatably connected to the lower surface of the fixing frame (2). The threaded screw (9) is fixedly connected to the output shaft of the motor (8).

3. A crankcase cover drilling apparatus according to claim 2, characterised in that: The threaded screw (9) is externally threaded to a support (10). Skirts (11) are fixedly installed on both sides of the support (10). There are two skirts (11). A retaining strip (12) is installed on the side of the fixing frame (2) near the support (10). There are two retaining strips (12). The two retaining strips (12) are slidably engaged with the two skirts (11) respectively.

4. A crankcase cover drilling apparatus according to claim 3, wherein: The support platform (10) has a groove (13), and a motor (14) is fixedly installed inside the groove (13). The motor (14) is electrically connected to the control switch (7). A drill bit (15) is rotatably connected to the lower surface of the support platform (10). The motor (14) is fixedly connected to the drill bit (15) through a coupling.

5. A crankcase cover drilling apparatus according to claim 4, characterised in that: The fixing component (5) includes a movable rod (16), and the movable rod (16) is rotatably connected to the upper surface of the turntable (4). There are three movable rods (16). A crossbar (17) is fixedly installed at the top of the movable rod (16). A threaded rod (18) is threadedly connected to the end of the crossbar (17) away from the movable rod (16). A handle (19) is fixedly installed at the top of the threaded rod (18). A pressure block (20) is fixedly installed at the bottom of the threaded rod (18).

6. A crankcase cover drilling apparatus as defined in claim 1, wherein: The rotating assembly (6) includes a fixed plate (21). The fixed plate (21) is fixedly installed on the side of the worktable (1) near the control switch (7). A handle (22) is rotatably connected to one side of the fixed plate (21). A worm gear (23) is rotatably connected to the side of the fixed plate (21) away from the handle (22). The worm gear (23) is fixedly connected to the handle (22). A worm wheel (24) is meshed on one side of the worm gear (23). The upper surface of the worm wheel (24) is fixedly connected to the turntable (4).

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