An angle control tool for a drone crankshaft

Abstract

The utility model provides a kind of angle control tool of unmanned plane crankshaft, is equipped in chuck of machine tool, including the mounting block of installation in the chuck, angle rotating member is rotatably arranged on the mounting block, the angle rotating member is locked in the mounting block by first locking bolt, the center coaxial line of the angle rotating member is set with the positioning hole for positioning minus one crankshaft, minus one crankshaft is locked in the angle rotating member by second locking bolt, the front end of the mounting block is provided with the angle scale dial of the coaxial line setting with the angle rotating member, and the second locking bolt is located the front side of the angle scale dial.The utility model has the advantages that: through angle scale dial cooperation locking bolt, the accurate control and fixed of eccentric angle can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of UAV crankshafts, and in particular to an angle control fixture for UAV crankshafts. Background Technology

[0002] The eccentric crankshaft is a core component of the UAV's fan blade transmission system. Employing an eccentric shaft design, it primarily converts the motor's rotational motion into a specific oscillating trajectory for the fan blades. During UAV operation, the eccentric crankshaft is subjected to centrifugal force and alternating loads from high-speed rotation. Its machining quality not only affects transmission efficiency but also the overall vibration and noise levels and lifespan of the aircraft. Inaccurate eccentricity angle control can lead to deviations in the fan blade trajectory, consequently impacting the UAV's control precision and flight stability. Currently, the eccentricity angle of the eccentric crankshaft requires measurement and adjustment on each machining operation, making accurate angle control difficult and resulting in low machining efficiency. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide an angle control tooling for the crankshaft of a drone.

[0004] This utility model provides an angle control fixture for a drone crankshaft, including a chuck mounted on a machine tool and a mounting block 1 mounted on the chuck. An angle rotating component 2 is rotatably mounted on the mounting block 1. The angle rotating component 2 is locked to the mounting block 1 by a first locking bolt 4. A positioning hole for positioning a reduced crankshaft is coaxially opened at the center of the angle rotating component 2. The reduced crankshaft is locked to the angle rotating component 2 by a second locking bolt 5. An angle scale 3 is provided at the front end of the mounting block 1 and is coaxially arranged with the angle rotating component 2. The second locking bolt 5 is located in front of the angle scale 3.

[0005] Furthermore, the angle rotating component 2 is composed of a rear rotating section 2.1 connected to a front positioning section 2.2, and the rotating section 2.1 and the positioning section 2.2 are arranged coaxially.

[0006] Furthermore, a countersunk hole is provided on the outer wall of the rotating section 2.1, and a pointer 6 is installed at the countersunk hole near the angle scale 3, the axis of the pointer 6 intersecting the axis of the rotating section 2.1.

[0007] Furthermore, the side wall of the rotating section 2.1 is provided with a locking surface 2.3, and a screw hole 2.4 is vertically provided on the locking surface 2.3 for screwing with the second locking bolt 5.

[0008] Furthermore, the axis of the screw hole 2.4 intersects the axis of the rotating segment 2.1.

[0009] Furthermore, the upper and lower edges of the left end of the mounting block 1 are both rounded.

[0010] The advantages of this invention are as follows: Accurate control and fixation of the eccentric angle can be achieved through the angle dial and locking bolts; rounded corners eliminate sharp edges, preventing operators from being scratched during clamping and improving operational safety; the second locking bolt is located on the front side of the angle dial, allowing operators to quickly tighten and loosen it without having to avoid other components; the first crankshaft is locked by the second locking bolt, and the angle rotating component is locked by the first locking bolt; the shoulder of the first crankshaft abuts against the positioning section to position the first crankshaft; the angle dial, in conjunction with the pointer on the rotating section, provides an intuitive reference for angle control, accurately controlling the rotation angle of the angle rotating component and the first crankshaft. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 AA section view; Figure 4 This is a schematic diagram of the structure of the present invention installed on the chuck and clamping the crankshaft to be processed; Figure 5 for Figure 3 Enlarged view of part B. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings.

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0014] See Figures 1 to 5This utility model provides an angle control fixture for a drone crankshaft, which is installed on the chuck of a machine tool. It includes a mounting block 1 installed on the chuck. The upper and lower edges of the left end of the mounting block 1 are rounded to eliminate sharp edges and prevent operators from being scratched during clamping, thus improving operational safety. An angle rotating component 2 is rotatably mounted on the mounting block 1. The angle rotating component 2 is locked to the mounting block 1 by a first locking bolt 4. The center of the angle rotating component 2 is coaxially provided with a positioning hole for positioning a reduced crankshaft. The reduced crankshaft is locked to the angle rotating component 2 by a second locking bolt 5. An angle scale 3 is provided at the front end of the mounting block 1 and is coaxially arranged with the angle rotating component 2. The second locking bolt 5 is located in front of the angle scale 3. The operator can directly and quickly tighten and loosen the second locking bolt from the front of the angle scale without having to avoid other parts. The eccentric portion of the reduction crankshaft is distributed circumferentially along the axis of the central shaft of the reduction crankshaft. The central shaft of the reduction crankshaft is placed into the positioning hole of the angle rotating component, and the second locking bolt is tightened to lock the reduction crankshaft. After machining the first eccentric portion, the eccentric portion coincides with the central axis of the chuck. The first locking bolt is loosened to release the angle rotating component. The angle rotating component and the reduction crankshaft on it are rotated according to the angle scale, so that the second eccentric portion to be machined coincides with the central axis of the chuck. The first locking bolt is tightened to lock the angle rotating component. The next eccentric portion is machined. All eccentric portions are machined according to the above steps. After loosening the second locking bolt, the reduction crankshaft is removed, thus achieving accurate control and fixation of the eccentric angle.

[0015] The angle rotating component 2 consists of a rear rotating section 2.1 connected to a front positioning section 2.2, with the rotating section 2.1 and the positioning section 2.2 arranged coaxially. The shoulder of the reducer crankshaft abuts against the positioning section to position the reducer crankshaft.

[0016] See Figure 1 , Figure 5 The outer wall of the rotating section 2.1 has a countersunk hole, and a pointer 6 is installed at the countersunk hole near the angle scale 3. The axis of the pointer 6 intersects the axis of the rotating section 2.1. The angle scale, together with the pointer on the rotating section, provides an intuitive reference for angle control. During processing, the operator can accurately control the rotation angle of the angle rotating part and the crankshaft by observing the correspondence between the pointer and the scale.

[0017] The side wall of the rotating section 2.1 is provided with a locking surface 2.3, and a screw hole 2.4 for screwing into the second locking bolt 5 is provided vertically on the locking surface 2.3.

[0018] The axis of screw hole 2.4 intersects the axis of rotating section 2.1. The screw hole ensures that the second locking bolt is perpendicular to the central axis of the reducer crankshaft, and the clamping force is directly applied to the reducer crankshaft to lock it.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An angle control fixture for a UAV crankshaft, mounted on a machine tool chuck, characterized in that: The device includes a mounting block installed on the clamp, an angle rotating component rotatably mounted on the mounting block, the angle rotating component being locked to the mounting block by a first locking bolt, a positioning hole for positioning a reduction crankshaft being opened coaxially at the center of the angle rotating component, the reduction crankshaft being locked to the angle rotating component by a second locking bolt, an angle scale plate coaxially mounted on the front end of the mounting block and the angle rotating component, the second locking bolt being located in front of the angle scale plate.

2. The angle control fixture for a UAV crankshaft as described in claim 1, characterized in that: The angle rotating component consists of a rear rotating section connected to a front positioning section, and the rotating section and the positioning section are arranged coaxially.

3. The angle control fixture for a UAV crankshaft as described in claim 2, characterized in that: The outer wall of the rotating section has a countersunk hole, and a pointer is installed at the countersunk hole near the angle scale. The axis of the pointer intersects the axis of the rotating section.

4. The angle control fixture for a UAV crankshaft as described in claim 2, characterized in that: The side wall of the rotating section is provided with a locking surface, and a screw hole is provided vertically on the locking surface for screwing with the second locking bolt.

5. The angle control fixture for a UAV crankshaft as described in claim 4, characterized in that: The axis of the screw hole intersects the axis of the rotating section.

6. The angle control fixture for a UAV crankshaft as described in claim 1, characterized in that: The upper and lower edges of the left end of the mounting block are rounded.

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