Motorcycle crankshaft oil hole machining device

Abstract

The utility model discloses a motorcycle crankshaft starting oil hole processing device relates to crankshaft drilling processing technical field. This motorcycle crankshaft starting oil hole processing device, including the base, the base top fixedly connected with the frame, and the frame both sides are fixedly installed with the support frame, and the support frame middle part is fixedly installed with the pressure block, and the base front end is fixedly installed with two telescopic rods, and the end of two telescopic rods is fixedly installed with the L type block, and the L type block and the pressure block between place have motorcycle crankshaft, and the power transmission of drilling device is stable, and the motion synchronism and accuracy of each axle are ensured, and the processing error is reduced, and the cooling medium reaches the cutting area when drilling cutter processes, and the cutter temperature is reduced, and the abrasion is reduced, and the service life is prolonged, and at the same time avoid the influence of the performance of crankshaft by the overheating of processing area, and in the automatic process, each component cooperates operation, reduces manual intervention, shortens the processing period, and the tool withdrawal and reset mechanism is convenient for repeated processing, improves production efficiency, and is suitable for batch production demand.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft drilling technology, and in particular to a device for machining oil injection holes in motorcycle crankshafts. Background Technology

[0002] In the field of machining oil injection holes for motorcycle crankshafts, traditional machining methods have many shortcomings; In the clamping process, common fixed structures are difficult to stably restrict the crankshaft position. During processing, displacement is easily caused by vibration or force, resulting in hole position deviation and affecting subsequent assembly accuracy. In terms of control, most equipment uses single or limited shaft system movement, which cannot flexibly adjust the processing position. When dealing with the processing of oil injection holes in multiple positions of different crankshaft models, tooling needs to be changed frequently, resulting in poor adaptability. In the power transmission process, traditional structures often exhibit transmission lag or instability, and insufficient synchronization of various moving parts further amplifies machining errors, making it difficult to meet the dimensional accuracy and geometric tolerances of holes. The cooling system is poorly designed, and the cooling medium cannot accurately reach the cutting area, which not only accelerates tool wear and shortens its service life, but may also damage the crankshaft material properties due to overheating in the machining area, affecting product quality. The low level of automation and reliance on manual intervention in the processing flow, from clamping and positioning to tool retraction and reset, not only increases labor intensity but also extends the processing cycle, resulting in low production efficiency and difficulty in meeting the needs of mass production. At the same time, the uncertainty of manual operation also leads to poor product consistency and increases the cost of subsequent quality inspection. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a machining device for oil injection holes in motorcycle crankshafts, which can solve the problem of automated high-precision drilling of motorcycle crankshafts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A device for machining oil injection holes in a motorcycle crankshaft includes a base, a frame fixedly connected to the top of the base, support frames fixedly installed on both sides of the frame, a pressure block fixedly installed in the middle of the support frames, two telescopic rods fixedly installed at the front end of the base, L-shaped blocks fixedly installed at the ends of the two telescopic rods, a motorcycle crankshaft placed between the L-shaped blocks and the pressure blocks, and a drilling device provided above the frame. The drilling device includes: Y-axis guide rail, Y-axis lead screw, Y-axis slider, X-axis lead screw, X-axis guide rail, X-axis slider, stepper motor, driving pulley, driven pulley, synchronous belt, Z-axis guide rail, Z-axis slider, Z-axis lead screw, and drilling tool.

[0005] Preferably, the four Y-axis guide rails are symmetrically distributed and fixedly installed on both sides of the frame in pairs, and the two Y-axis lead screws are symmetrically distributed and rotatably connected to both sides of the frame.

[0006] Preferably, the two ends of the Y-axis slider are slidably mounted on four Y-axis guide rails, and the two ends of the Y-axis slider are threadedly connected to two Y-axis lead screws.

[0007] Preferably, the X-axis lead screw is rotatably connected to the Y-axis slider, and four X-axis guide rails are horizontally distributed and fixedly installed on the Y-axis slider.

[0008] Preferably, the X-axis slider is slidably mounted on four X-axis guide rails, and the X-axis slider is threadedly connected to the X-axis lead screw.

[0009] Preferably, the Z-axis lead screw is rotatably connected to the X-axis slider, and two Z-axis guide rails are symmetrically distributed and fixedly installed on the X-axis slider.

[0010] Preferably, the Z-axis slider is slidably mounted on two Z-axis guide rails, and the Z-axis slider is threadedly connected to the Z-axis lead screw.

[0011] Preferably, the drilling cutter is rotatably mounted on the Z-axis slider. The drilling cutter is an internally cooled drill bit with a cooling channel inside, which is connected to an external cooling system. Five driven pulleys are respectively fixedly mounted on the ends of two Y-axis lead screws, X-axis lead screws, Z-axis lead screws, and the drilling cutter.

[0012] Preferably, the four stepper motors are respectively fixedly mounted on the frame, the Y-axis slider, the X-axis slider and the Z-axis slider, the two drive pulleys are fixedly mounted on the output shafts of the stepper motors on the frame, and the other three drive pulleys are respectively fixedly mounted on the output shafts of the other three stepper motors.

[0013] Preferably, the five driving pulleys and the five driven pulleys are all meshed with each other by a synchronous belt.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) The crankshaft oil injection hole processing device of this motorcycle has an L-shaped block and a pressure block combined with a telescopic rod to form a clamping structure, which can stably fix the crankshaft, avoid displacement during processing, and ensure processing accuracy. In the multi-axis linkage design, the spatial position of the drilling tool can be precisely controlled, which can adapt to the processing of oil injection holes in different positions and improve the versatility of the device.

[0015] (2) The crankshaft oil injection hole machining device of this motorcycle has stable power transmission of the drilling device, ensuring the synchronization and accuracy of the movement of each shaft, reducing machining errors. The drilling tool is internally cooled and has a cooling channel. During machining, the cooling medium directly reaches the cutting area, reducing the tool temperature, reducing wear, and extending the service life. At the same time, it avoids the machining area from overheating and affecting the crankshaft performance. In the automated process, each component works together, reducing manual intervention, shortening the machining cycle, and the tool retraction and reset mechanism facilitates repeated machining, improving production efficiency and making it suitable for mass production needs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the machining device for the oil injection hole of the motorcycle crankshaft according to the present invention; Figure 2 This is a schematic diagram of the machining device for the oil injection hole of the motorcycle crankshaft according to the present invention; Figure 3 This is a cross-sectional schematic diagram of the machining device for the oil injection hole of the motorcycle crankshaft according to this utility model; Figure 4 This is a cross-sectional schematic diagram of the machining device for the oil injection hole of the motorcycle crankshaft according to this utility model.

[0017] Reference numerals in the attached diagram: 1. Base; 2. Support frame; 3. Frame; 4. Y-axis guide rail; 5. Y-axis lead screw; 6. Y-axis slider; 7. X-axis lead screw; 8. X-axis guide rail; 9. X-axis slider; 10. Stepper motor; 11. Driving pulley; 12. Driven pulley; 13. Synchronous belt; 14. Z-axis guide rail; 15. Z-axis slider; 16. Z-axis lead screw; 17. Drilling tool; 18. Pressure block; 19. Telescopic rod; 20. L-shaped block. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a machining device for machining oil injection holes in a motorcycle crankshaft, including a base 1, a frame 3 fixedly connected above the base 1, support frames 2 fixedly installed on both sides of the frame 3, a pressure block 18 fixedly installed in the middle of the support frame 2, two telescopic rods 19 fixedly installed at the front end of the base 1, an L-shaped block 20 fixedly installed at the end of the two telescopic rods 19, a motorcycle crankshaft placed between the L-shaped block 20 and the pressure block 18, and a drilling device provided above the frame 3; Place the motorcycle crankshaft between the L-shaped block 20 and the pressure block 18, activate the telescopic rod 19, the telescopic rod 19 extends and moves the L-shaped block 20 closer to the crankshaft, and cooperates with the pressure block 18 to clamp and fix the crankshaft, thus completing the positioning and clamping of the crankshaft. The drilling device includes: Y-axis guide rail 4, Y-axis lead screw 5, Y-axis slider 6, X-axis lead screw 7, X-axis guide rail 8, X-axis slider 9, stepper motor 10, driving pulley 11, driven pulley 12, synchronous belt 13, Z-axis guide rail 14, Z-axis slider 15, Z-axis lead screw 16, and drilling tool 17; Four Y-axis guide rails 4 are symmetrically distributed and fixedly installed on both sides of the frame 3 in pairs, and two Y-axis lead screws 5 are symmetrically distributed and rotatably connected to both sides of the frame 3. The Y-axis slider 6 is slidably mounted on four Y-axis guide rails 4 at both ends, and the Y-axis slider 6 is threadedly connected to two Y-axis lead screws 5 at both ends. The X-axis lead screw 7 is rotatably connected to the Y-axis slider 6, and four X-axis guide rails 8 are horizontally distributed and fixedly installed on the Y-axis slider 6; The X-axis slider 9 is slidably mounted on four X-axis guide rails 8, and the X-axis slider 9 is threadedly connected to the X-axis lead screw 7. The Z-axis lead screw 16 is rotatably connected to the X-axis slider 9, and two Z-axis guide rails 14 are symmetrically distributed and fixedly installed on the X-axis slider 9. Z-axis slider 15 is slidably mounted on two Z-axis guide rails 14, and Z-axis slider 15 is threadedly connected to Z-axis lead screw 16; The drilling cutter 17 is rotatably mounted on the Z-axis slider 15. The drilling cutter 17 is an internally cooled drill bit. The drilling cutter 17 has a cooling channel inside, which is connected to the external cooling system. Five driven pulleys 12 are respectively fixedly mounted on the ends of the two Y-axis lead screws 5, X-axis lead screw 7, Z-axis lead screw 16 and drilling cutter 17. Four stepper motors 10 are fixedly mounted on the frame 3, the Y-axis slider 6, the X-axis slider 9 and the Z-axis slider 15 respectively. Two drive pulleys 11 are fixedly mounted on the output shafts of the stepper motors 10 on the frame 3, and the other three drive pulleys 11 are fixedly mounted on the output shafts of the other three stepper motors 10 respectively. The five driving pulleys 11 and the five driven pulleys 12 are all meshed with each other by a synchronous belt 13; According to the machining position requirements of the oil injection hole on the crankshaft, the stepper motor 10 on the control frame 3 is started, and the Y-axis lead screw 5 is driven to rotate through the drive pulley 11 and the synchronous belt 13. The Y-axis slider 6 moves along the Y-axis guide rail 4 to the preset Y-axis position. Then, the stepper motor 10 on the Y-axis slider 6 is controlled to drive the X-axis lead screw 7 to rotate, so that the X-axis slider 9 moves along the X-axis guide rail 8 to the preset X-axis position, completing the initial positioning of the drilling device on the horizontal plane. The stepper motor 10 on the Z-axis slider 15 is started, driving the drill bit 17 to rotate through the transmission assembly until it reaches the working speed. This controls the stepper motor 10 on the X-axis slider 9, driving the Z-axis lead screw 16 to rotate. The Z-axis slider 15 moves downward along the Z-axis guide rail 14, causing the rotating drill bit 17 to feed towards the crankshaft surface for cutting the oil injection hole. During the machining process, the external cooling system delivers cooling medium through the cooling channels inside the drill bit 17 to cool the cutting area. After the oil injection hole is machined to the preset depth, the Z-axis slider 15 is controlled to move upward along the Z-axis guide rail 14, causing the drill bit 17 to exit the machining hole. Subsequently, the stepper motors 10 of each axis rotate in reverse, driving the Y-axis slider 6 and X-axis slider 9 back to their initial positions, completing the machining of one oil injection hole. The telescopic rod 19 retracts, driving the L-shaped block 20 away from the crankshaft, releasing the clamping of the crankshaft, and removing the machined crankshaft, thus completing the entire machining process.

[0023] Working principle: During use, the operator places the motorcycle crankshaft between the L-shaped block 20 and the pressure block 18, activates the telescopic rod 19, and the L-shaped block 20 moves closer to the pressure block 18 for clamping and positioning. The stepper motor 10 on the control frame 3 drives the Y-axis lead screw 5 via the drive pulley 11 and the synchronous belt 13. The Y-axis slider 6 moves along the Y-axis guide rail 4 to the preset Y position. Then, the stepper motor 10 on the Y-axis slider 6 drives the X-axis lead screw 7, and the X-axis slider 9 moves along the X-axis guide rail 8 to the preset X position. The Z-axis slider 1 is then activated. Stepper motor 10 on 5 drives drill bit 17 to rotate, controls stepper motor 10 on X-axis slider 9 to drive Z-axis lead screw 16, Z-axis slider 15 moves down along Z-axis guide rail 14, drill bit 17 feeds and processes, external cooling system sends medium to cool through the cooling channel of drill bit 17, after processing to the preset depth, Z-axis slider 15 moves up and retracts the tool, each axis stepper motor 10 reverses to reset Y-axis slider 6 and X-axis slider 9, telescopic rod 19 retracts, L-shaped block 20 moves away, crankshaft is removed and process is completed; The clamping structure formed by the L-shaped block 20 and the pressure block 18 in conjunction with the telescopic rod 19 can stably fix the crankshaft, prevent displacement during processing, and ensure processing accuracy. In the multi-axis linkage design, the spatial position of the drilling tool 17 can be precisely controlled, which can adapt to the processing of oil injection holes in different positions and improve the versatility of the device. The drilling device has stable power transmission, ensuring the synchronization and accuracy of the movement of each axis and reducing machining errors. The drilling cutter 17 is internally cooled and has a cooling channel. During machining, the cooling medium directly reaches the cutting area, reducing tool temperature, reducing wear, and extending service life. At the same time, it avoids overheating of the machining area from affecting crankshaft performance. In the automated process, all components work together, reducing manual intervention, shortening the machining cycle, and the tool retraction and reset mechanism facilitates repeated machining, improving production efficiency and making it suitable for mass production needs.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for machining oil injection holes in a motorcycle crankshaft, comprising a base (1), characterized in that: A frame (3) is fixedly connected above the base (1), and support frames (2) are fixedly installed on both sides of the frame (3). A pressure block (18) is fixedly installed in the middle of the support frame (2). Two telescopic rods (19) are fixedly installed at the front end of the base (1). An L-shaped block (20) is fixedly installed at the end of the two telescopic rods (19). A motorcycle crankshaft is placed between the L-shaped block (20) and the pressure block (18). A drilling device is provided above the frame (3). The drilling device includes: Y-axis guide rail (4), Y-axis lead screw (5), Y-axis slider (6), X-axis lead screw (7), X-axis guide rail (8), X-axis slider (9), stepper motor (10), driving pulley (11), driven pulley (12), synchronous belt (13), Z-axis guide rail (14), Z-axis slider (15), Z-axis lead screw (16), and drilling tool (17).

2. The motorcycle crankshaft oil injection hole machining device according to claim 1, characterized in that: The four Y-axis guide rails (4) are symmetrically distributed and fixed on both sides of the frame (3) in pairs, and the two Y-axis lead screws (5) are symmetrically distributed and rotatably connected to both sides of the frame (3).

3. The motorcycle crankshaft oil injection hole machining device according to claim 2, characterized in that: The two ends of the Y-axis slider (6) are slidably mounted on the four Y-axis guide rails (4), and the two ends of the Y-axis slider (6) are threadedly connected to the two Y-axis lead screws (5).

4. The motorcycle crankshaft oil injection hole machining device according to claim 3, characterized in that: The X-axis lead screw (7) is rotatably connected to the Y-axis slider (6), and four X-axis guide rails (8) are horizontally distributed and fixedly installed on the Y-axis slider (6).

5. The motorcycle crankshaft oil injection hole machining device according to claim 4, characterized in that: The X-axis slider (9) is slidably mounted on four X-axis guide rails (8), and the X-axis slider (9) is threadedly connected to the X-axis lead screw (7).

6. The motorcycle crankshaft oil injection hole machining device according to claim 5, characterized in that: The Z-axis lead screw (16) is rotatably connected to the X-axis slider (9), and two Z-axis guide rails (14) are symmetrically distributed and fixedly installed on the X-axis slider (9).

7. The motorcycle crankshaft oil injection hole machining device according to claim 6, characterized in that: The Z-axis slider (15) is slidably mounted on two Z-axis guide rails (14), and the Z-axis slider (15) is threadedly connected to the Z-axis lead screw (16).

8. The motorcycle crankshaft oil injection hole machining device according to claim 7, characterized in that: The drilling cutter (17) is rotatably mounted on the Z-axis slider (15). The drilling cutter (17) is an internally cooled drill bit. The drilling cutter (17) has a cooling channel inside, which is connected to the external cooling system. Five driven pulleys (12) are respectively fixedly mounted on the ends of the two Y-axis lead screws (5), X-axis lead screws (7), Z-axis lead screws (16) and the drilling cutter (17).

9. The motorcycle crankshaft oil injection hole machining device according to claim 8, characterized in that: The four stepper motors (10) are fixedly mounted on the frame (3), the Y-axis slider (6), the X-axis slider (9) and the Z-axis slider (15), respectively. Two drive pulleys (11) are fixedly mounted on the output shaft of the stepper motors (10) on the frame (3), and the other three drive pulleys (11) are fixedly mounted on the output shaft of the other three stepper motors (10).

10. The motorcycle crankshaft oil injection hole machining device according to claim 9, characterized in that: The five driving pulleys (11) and the five driven pulleys (12) are all meshed with each other by a synchronous belt (13).

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