Flywheel drilling machine
By designing a special flywheel drilling machine, which uses a combination of a four-jaw chuck and a movable positioning block, the accuracy and efficiency problems caused by multiple positioning in existing technologies are solved, and high-precision and high-efficiency flywheel machining is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MEIXIN YINGSHEN MACHINERY CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-08-04
AI Technical Summary
The existing flywheel machining process requires multiple positioning steps, which leads to reduced machining accuracy and low efficiency, affecting the balance of the flywheel.
A flywheel drilling machine was designed, which uses a combination of a four-jaw chuck and a movable positioning block to achieve multi-process machining with one clamping. Combined with stepper motor and hydraulic cylinder drive, it improves positioning accuracy and efficiency.
By using a single clamping and fixing process to achieve multiple processing steps, the accumulation of errors is prevented, the machining accuracy and balance of the flywheel are improved, and the machining efficiency is increased.
Smart Images

Figure CN224587030U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a flywheel drilling machine. Background Technology
[0002] A flywheel is a disc-shaped component with a large moment of inertia. Its main functions include energy storage, balancing the power system, and speed regulation. Since the flywheel stores kinetic energy through high-speed rotation, dynamic balancing is crucial. An unbalanced flywheel can cause engine vibration, increase internal friction, and even lead to wear and damage to engine components. Precise balancing can effectively reduce engine vibration and protect other components.
[0003] Therefore, the holes on both sides of the flywheel require multiple machining processes due to precision requirements. Current technology requires positioning after each machining operation, reducing machining accuracy and consequently affecting the flywheel's balance. Furthermore, each positioning operation also impacts machining efficiency. Utility Model Content
[0004] The present invention aims to provide a special flywheel drilling machine that can improve processing accuracy and precisely process the balance of the flywheel.
[0005] The flywheel drilling machine in this solution includes a fixing part and a processing part; the fixing part includes a Y-axis slide and a chuck set on the Y-axis slide, the axis of the chuck being set along the Y-axis; a positioning part is fixedly connected to the chuck, the positioning part including a positioning block movable along the Z-axis; the processing part includes drilling devices located on both sides of the fixing part, and an X-axis slide is provided below the drilling devices; the drilling devices include multiple rotating mechanisms.
[0006] The advantages of this invention are: 1) Since the positioning part is fixed on the chuck, multiple processing steps can be performed after a single clamping and fixing, preventing error accumulation and improving the balance of the flywheel. 2) The positioning block can quickly position the flywheel rotation angle through the flywheel side groove. 3) By changing the drill bit of the rotating hole device, various structures such as flywheel through holes, countersunk holes, and stepped holes can be precision machined. 4) Processing only requires a single clamping and fixing, resulting in high processing efficiency.
[0007] Furthermore, the chuck is preferably a four-jaw chuck, with the positioning block positioned above the chuck and between its two fastening jaws. Changing the chuck eliminates the need to install and adjust the positioning block, improving machining accuracy and efficiency.
[0008] Furthermore, the positioning block is provided with two positioning claws, the included angle between the inner surfaces of the two positioning claws being 10° to 15°; the positioning claws and the positioning block are chamfered. As the positioning claws extend in, the port of the flywheel side groove slides along the inner inclined surface of the positioning claws, causing the flywheel to rotate to the specified angle. Moreover, the positioning claws do not need to perfectly match the shape of the flywheel side groove, meaning that flywheel angle positioning can be achieved for side grooves of various sizes.
[0009] Furthermore, the inner side of the end of the positioning claw is a bevel with an inclination angle of 15° to 18°, which increases the distance between the ends of the two positioning claws and facilitates insertion into the side groove of the flywheel; the outer side of the end of the positioning claw is an arc surface to prevent scratching the flywheel.
[0010] Furthermore, the multiple rotating hole mechanisms are driven by the same driving device.
[0011] Furthermore, the X-axis slide and the Y-axis slide are driven by stepper motors, the rotating hole mechanism is driven by a motor, and the chuck and the positioning block are driven by hydraulic cylinders.
[0012] Furthermore, a heightening seat is provided below the X-axis slide block to position the rotating hole mechanism at a suitable height.
[0013] Furthermore, it also includes a bed, which is located below the fixing part and the machining part; the bed is provided with a first boss fixedly connected to the machining part and a second boss fixedly connected to the fixing part; the first boss is a solid structure. Attached Figure Description
[0014] Figure 1 This is a front view of the flywheel drilling machine of this utility model;
[0015] Figure 2 This is a perspective view of the flywheel drilling machine of this utility model;
[0016] Figure 3 This is a schematic diagram of the flywheel drilling machine of this utility model;
[0017] Figure 4 This is a schematic diagram of the installation of the chuck and positioning part in the flywheel drilling machine of this utility model;
[0018] Figure 5 for Figure 1 Enlarged view of D;
[0019] Figure 6 This is a schematic diagram of the positioning part in the flywheel drilling machine of this utility model.
[0020] In the diagram, 1 is the fixing part, 1-1 is the Y-axis slide, 1-2 is the chuck, 1-21 is the fastening jaw, 1-3 is the positioning block, 1-4 is the positioning jaw, 1-41 is the inner side surface, 1-42 is the inclined surface, 1-43 is the arc surface, 1-5 is the positioning block seat, 2 is the machining part, 2-1 is the X-axis slide, 2-2 is the drilling mechanism, 2-21 is the first machining position, 2-22 is the second machining position, 2-3 is the raising seat, 3 is the bed, 3-1 is the first boss, 3-2 is the second boss, 4 is the flywheel, 4-1 is the side groove, 5-1 is the stepper motor, 5-2 is the motor, and 5-3 is the hydraulic cylinder. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0022] according to Figures 1 to 6As shown, the flywheel 4 drilling machine includes a fixing part 1 and a processing part 2. The fixing part 1 includes a Y-axis slide 1-1 and a chuck 1-2 mounted on the Y-axis slide 1-1, with the axis of the chuck 1-2 along the Y-axis. A positioning part is fixedly connected to the chuck 1-2, including a positioning block seat 1-5 and a positioning block 1-3 movable along the Z-axis. Specifically, the positioning block seat 1-5 has a groove adapted to the positioning block 1-3, and two positioning jaws 1-4 are provided below the positioning block 1-3. The chuck 1-2 is preferably a four-jaw chuck 1-2, and the positioning block seat 1-5 is fixedly connected to the chuck 1-2 by bolts and is located between the two fastening jaws 1-21. The flywheel 4 to be processed is first supported by the two lower fastening claws 1-21. As the fastening claws 1-21 retract, they gradually lift the flywheel 4. At the same time, the positioning block 1-3 slides down, and the positioning claws 1-4 extend into the two side grooves 4-1 of the flywheel 4 respectively, adjusting the angle of the flywheel 4. The fastening claws 1-21 then tighten to fix the flywheel 4. Preferably, the included angle ∠a between the inner surfaces 1-41 of the two positioning claws 1-4 is 10°. The positioning claws 1-4 do not need to be completely aligned with the side grooves 4-1 of the flywheel 4. The angle positioning of the flywheel 4 can be achieved by the two inverted V-shaped positioning claws 1-4 extending into the side grooves 4-1 of the flywheel 4. To facilitate the insertion of the positioning claw 1-4 into the side groove 4-1 of the flywheel 4, the outer side of the end of the positioning claw 1-4 is an arc surface 1-42; the inner side of the end of the positioning claw 1-4 is an inclined surface 1-42, and the inclination angle ∠b of the inclined surface 1-42 is preferably 15°, increasing the distance between the ends of the two positioning claws 1-4. A chamfer is provided between the positioning claw 1-4 and the positioning block 1-3 to prevent the positioning claw 1-4 from rubbing against the inner wall of the slide groove. The processing part 2 includes drilling devices located on both sides of the fixing part 1. The drilling device includes two rotating drilling mechanisms 2-2. Specifically, the rotating drilling mechanism 2-2 of the first processing position 2-21 is equipped with a first drill bit, and the rotating drilling mechanism 2-2 of the second processing position 2-22 is equipped with a second drill bit. The length of the first drill bit is greater than that of the second drill bit to prevent the second drill bit from interfering with the chuck 1-2. In this embodiment, the two rotating drilling mechanisms 2-2 located on the same side are driven by the same driving device. Below the drilling device is an X-axis slide 2-1, and below the X-axis slide 2-1 is a heightening seat 2-3.
[0023] Preferably, the X-axis slide 2-1 and the Y-axis slide 1-1 are driven by a stepper motor 5-1, the rotating hole mechanism 2-2 is driven by a motor 5-2, and the chuck 1-2 and the positioning block 1-3 are driven by a hydraulic cylinder 5-3.
[0024] A bed 3 is located below the fixing part 1 and the machining part 2. The bed 3 has a first boss 3-1 fixedly connected to the machining part 2 and a second boss 3-2 fixedly connected to the fixing part 1. Specifically, the Y-axis slide 1-1 is connected to the first boss 3-1 via a slide rail, and the riser 2-3 is bolted to the second boss 3-2. Preferably, the first boss 3-1 is a solid structure, and the second boss 3-2 is a frame structure.
[0025] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.
Claims
1. A flywheel drilling machine, characterized in that: It includes a fixing part and a processing part; the fixing part includes a Y-axis slide and a chuck disposed on the Y-axis slide, the axis of the chuck being disposed along the Y-axis; a positioning part is fixedly connected to the chuck, the positioning part including a positioning block movable along the Z-axis; the processing part includes drilling devices located on both sides of the fixing part, and an X-axis slide is disposed below the drilling devices; the drilling devices include multiple rotating hole mechanisms.
2. The flywheel drilling machine according to claim 1, characterized in that: The chuck is a four-jaw chuck, and the positioning block is located above the chuck and between the two fastening jaws of the chuck.
3. The flywheel drilling machine according to claim 1 or 2, characterized in that: The positioning block is provided with two positioning claws, and the included angle between the inner sides of the two positioning claws is 10° to 15°; the claws and the positioning block are provided with chamfers.
4. The flywheel drill rig of claim 3, wherein: The inner side of the end of the positioning claw is a slope with an inclination angle of 15° to 18°; the outer side of the end of the positioning claw is an arc surface.
5. The flywheel drill rig of claim 1, wherein: The multiple drilling mechanisms are driven by the same drive device.
6. The flywheel drill rig of claim 1, wherein: The X-axis slide and Y-axis slide are driven by stepper motors, the rotating hole mechanism is driven by a motor, and the chuck and the positioning block are driven by hydraulic cylinders.
7. The flywheel drill rig of claim 6, wherein: A heightening seat is provided below the X-axis slide.
8. The flywheel drill rig of claim 1, wherein: It also includes a bed, which is located below the fixing part and the machining part; the bed is provided with a first boss fixedly connected to the machining part and a second boss fixedly connected to the fixing part; the first boss is a solid structure.