A UAV arm hole-opening assembly fixture

Abstract

This invention proposes a tooling for assembling holes in a drone arm, relating to the field of drone manufacturing tooling technology. It includes a base plate, a limiting seat, a positioning seat, and a drilling assembly. The limiting seat is fixed to the base plate and has an arc-shaped groove that adapts to the outside of the arm to restrict arm movement. The positioning seat is disposed on the base plate and includes a pin for inserting into the hinge seat of the arm to prevent arm rotation. The drilling assembly includes a pressure cap movably disposed on the base plate and has a machining hole. This invention, by setting a base plate and installing the limiting seat, positioning seat, and drilling assembly on it, uses the limiting seat to support the arm and the positioning seat to position the arm during drilling and assembly. This allows for the completion of arm drilling and motor mount assembly on a single tooling set, reducing the processing steps and the number of tooling components required for machining operations.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology for drone production, and in particular to a tooling for assembling holes in the arm of a drone. Background Technology

[0002] Currently, most multi-rotor drone cantilevers use carbon fiber tubing, which is lightweight and strong. After the cantilevers are fixed to the motor mounts, they are mounted on the fuselage using other parts. Typically, the motor mounts need to be leveled after the cantilevers are assembled on the fuselage. Inconsistent assembly of the motor mounts can significantly impact the flight performance of the motors and the drone.

[0003] Currently, existing technologies have proposed assembly fixtures for UAV arms, specifically designed for assembling UAV cantilever arms. For example, a multi-rotor UAV cantilever assembly fixture (publication number CN211519890U) uses a cantilever drilling mechanism and a motor mount assembly mechanism to perform drilling operations on the arm and assembling the motor mount. However, these two mechanisms are independent of each other. Operators must use the cantilever drilling mechanism to create the holes before assembling the motor mount using the motor mount assembly mechanism. This process is complex, and the independent nature of the two mechanisms increases costs. Utility Model Content

[0004] In view of this, the present invention proposes a tooling for assembling holes in the arm of a drone. By setting a base plate and installing a limiting seat, a positioning seat and a drilling component on the base plate, the arm is supported by the limiting seat, and the positioning seat positions the arm during hole opening and assembly. This allows the arm hole opening and motor mount assembly to be completed on a single tooling, thereby reducing the processing flow and the tooling required for processing operations.

[0005] The technical solution of this utility model is achieved as follows: This utility model provides a tooling for drilling holes in the arm of a drone, including a base plate, a limiting seat, a positioning seat, and a drilling assembly, wherein...

[0006] The limiting seat is fixed on the base plate, and the limiting seat has an arc-shaped groove that is adapted to the outside of the machine arm to limit the movement of the machine arm.

[0007] A positioning seat is disposed on a base plate, the positioning seat including a pin for inserting into the hinge seat of the arm to prevent the arm from rotating;

[0008] The punching assembly includes a pressure cap movably mounted on a base plate. The pressure cap has a machining hole, the central axis of which is parallel to the pin. The pressure cap is used to press against the end of the machine arm to punch a hole in the end of the machine arm through the machining hole.

[0009] Based on the above technical solutions, preferably, the punching assembly further includes a fixing seat, the pressure cap is hinged to the fixing seat, and semi-circular grooves are provided on the opposite sides of the pressure cap and the fixing seat. The two semi-circular grooves can be engaged to form a mating opening to fit the machine arm.

[0010] More preferably, the punching assembly further includes a pin, which is movably mounted on the fixed base. The pressure cap has a pin hole, and the pin is used to lock the pressure cap and the fixed base after the pressure cap and the fixed base are engaged to form a mating joint.

[0011] Based on the above technical solutions, preferably, it also includes a positioning seat, on which a calibration surface is provided, and the pin is perpendicular to the calibration surface. The calibration surface is used to abut against the motor base to correct the relative angle between the machine arm and the motor base.

[0012] More preferably, there are two positioning seats, which are respectively located near the punching component and the alignment seat.

[0013] More preferably, the number of limiting seats is two, and both are disposed between two positioning seats.

[0014] Based on the above technical solutions, preferably, the positioning seat further includes a support, on which two insertion holes are provided symmetrically distributed with the arm as the center line, and the insertion holes are used to install pins.

[0015] Based on the above technical solutions, preferably, it also includes a support base, which is disposed on the end of the substrate away from the drilling assembly and is located on the same plane as the drilling assembly. The support base is provided with a relief groove so that the relief groove fits into the motor base and supports the motor base.

[0016] The UAV arm opening assembly fixture of this utility model has the following advantages over the prior art:

[0017] (1) By setting up a base plate and installing a limiting seat, a positioning seat and a drilling assembly on the base plate, the limiting seat supports the machine arm, and the positioning seat positions the machine arm during drilling and assembly, so as to complete the drilling of the machine arm and the assembly of the motor base on a set of tooling, thereby reducing the processing flow and reducing the tooling required during processing.

[0018] (2) Set the calibration surface. The calibration surface achieves the positioning calibration of the motor base by fitting the lugs on both sides of the arc-shaped piece. At this time, the rotation angle of the machine arm is restricted by the pin, and the rotation angle of the motor base is restricted by the calibration surface. This can achieve the relative angle locking between the machine arm and the motor base, thereby completing the assembly operation with higher precision. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A perspective view of the UAV arm opening assembly fixture of this utility model;

[0021] Figure 2 A schematic diagram illustrating the arm opening implementation of the UAV arm opening assembly fixture of this utility model;

[0022] Figure 3 This is a schematic diagram illustrating the assembly of the motor mount of the UAV arm opening assembly fixture of this utility model. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-3 As shown, the UAV arm drilling assembly tool of this utility model includes a base plate 1, a limiting seat 2, a positioning seat 3, and a drilling component 4.

[0025] The substrate 1 is a metal base plate. Several mounting holes and positioning slots are provided on the substrate 1. Specifically, two mounting holes correspond to one positioning slot, that is, mounting holes are provided on both sides of each positioning slot. There are multiple positioning slots, and they are all located on the same side of the substrate 1. At the same time, all positioning slots are located on the same straight line. The positioning slots can be tightly fitted with the components on the substrate 1 to realize the assembly operation of each component on the substrate 1, and the corresponding components are fixed by screws and mounting holes.

[0026] The limiting seat 2 is fixed on the base plate 1. The limiting seat 2 has an arc-shaped groove 201. The arc-shaped groove 201 is adapted to the outside of the machine arm to restrict the movement of the machine arm. The limiting seat 2 is a metal plate support. Its width direction is perpendicular to the base plate 1, and a protrusion is provided at the bottom. The protrusion is inserted into one of the positioning grooves of the base plate 1 and fixed to the base plate 1 by screws. The thickness direction of the limiting seat 2 is parallel to the straight line of each positioning groove. The arc-shaped groove 201 provided on the limiting seat 2 can fit the outside of the machine arm, thereby restricting its movement except for rotation.

[0027] The positioning seat 3 is mounted on the base plate 1. The positioning seat 3 includes a pin 31, which is used to insert into the hinge seat of the arm to prevent the arm from rotating. The positioning seat 3 adopts the same structure as the limiting seat 2 and is fixed on the base plate 1. The thickness direction of the positioning seat 3 is consistent with the thickness direction of the limiting seat 2. The pin 31 is perpendicular to the base plate 1. The hinge seat of the arm is used to hinge to the main body of the drone for folding and storage. Therefore, the hinge hole on the hinge seat is perpendicular to the ground. Correspondingly, when installing the motor mount, the opening on the arm also needs to be perpendicular to the ground. Based on this, the arm can be accurately positioned by inserting the pin 31 into the hinge hole of the arm hinge seat to limit its relative angle, thereby realizing the opening and assembly operations.

[0028] The drilling assembly 4 includes a pressure cap 41, which is movably mounted on the base plate 1. The pressure cap 41 has a machining hole 411, the central axis of which is parallel to the pin 31. The pressure cap 41 is used to press against the end of the machine arm to drill a hole in the end of the machine arm through the machining hole 411. Specifically, the drilling operation can be performed by passing a drill bit through the machining hole 411.

[0029] In this embodiment, since holes need to be made on both sides of the end of the arm, after the arm is placed on the limiting seat 2, the pin 31 on the positioning seat 3 is first inserted into the hinge hole to realize the rotation hole on one side. When making the rotation hole on the other side, the arm needs to be rotated 180 degrees. At this time, the hinge hole is on the other side, but it is still perpendicular to the base plate 1. To address this, the pin 31 can be adjusted accordingly to continue positioning the arm, or two pins 31 can be directly set to realize the positioning of the arm before and after rotation. After the hole is made, the arm can be positioned again by the pin 31 to realize the assembly operation of the motor base.

[0030] In some embodiments, the drilling assembly 4 further includes a fixing base 42, the pressure cover 41 is hinged to the fixing base 42, and semi-circular grooves are provided on the opposite sides of the pressure cover 41 and the fixing base 42. The two semi-circular grooves can be engaged to form a mating opening to accommodate the machine arm. With this arrangement, the machine arm can be positioned through the mating opening during the drilling process, minimizing its offset and sway during the drilling process and improving processing stability. The fixing base 42 is fixed to the base plate 1 in the same way as the limiting seat 2. The structure of the pressure cover 41 is similar to that of the fixing base 42.

[0031] Specifically, the punching assembly 4 also includes a pin 43, which is movably mounted on the fixed base 42. The pressure cover 41 has a pin hole 412. The pin 43 is used to insert into the pin hole 412 after the pressure cover 41 and the fixed base 42 are engaged to form a mating opening, thereby locking the pressure cover 41 and the fixed base 42.

[0032] An insert block is provided on the pressure cap 41, and an insert groove is provided on the fixing seat 42. The pin hole 412 is opened on the insert block, and the pin 43 is installed on the fixing seat 42 by thread. The operator can rotate the pin 43 to make it enter the insert groove, thereby inserting it into the pin hole 412. The setting of the insert block and the insert groove can improve the fitting accuracy between the pressure cap 41 and the fixing seat 42. At the same time, it is convenient for the pin 43 to be inserted into the pin hole 412 to lock the pressure cap 41 and the fixing seat 42.

[0033] In some embodiments, a positioning seat 5 is also provided, on which a calibration surface 501 is provided. The pin 31 is perpendicular to the calibration surface 501. The calibration surface 501 is used to abut against the motor base to correct the relative angle between the machine arm and the motor base. Since the motor base is provided with two arc-shaped pieces, the two arc-shaped pieces are fitted onto the machine arm and fixed from both sides by bolts, thereby connecting the machine arm. Both sides of the arc-shaped pieces are provided with lugs for installing bolts. The calibration surface 501 achieves positioning calibration of the motor base by fitting the lugs on both sides of the arc-shaped pieces. At this time, the rotation angle of the machine arm is restricted by the pin 31, and the rotation angle of the motor base is restricted by the calibration surface 501, thereby achieving the locking of the relative angle between the machine arm and the motor base, and thus completing a high-precision assembly operation.

[0034] In a specific embodiment, there are two positioning seats 3, which are respectively close to the drilling component 4 and the alignment seat 5. Considering that the drilling component 4 is set at one end of the substrate 1, the motor seat cannot be assembled at that end. Therefore, it is necessary to rotate the orientation of the machine arm for assembly. By setting two positioning seats 3 and placing them at different ends, drilling and motor seat assembly can be performed at both ends of the substrate 1.

[0035] In some embodiments, there are two limiting seats 2, both of which are disposed between two positioning seats 3. There is a certain distance between the two limiting seats 2. In order to avoid the machine arm being unable to be placed into the arc groove 201 due to errors, the radius of the arc groove 201 will be slightly larger than the radius of the machine arm during the processing. This arrangement means that a single limiting seat 2 cannot effectively correct and limit the direction of the machine arm. The two limiting seats 2 can form a better limit on the machine arm by connecting the two points.

[0036] In some embodiments, the positioning seat 3 is further provided with a support 32, on which two insertion holes 321 are provided symmetrically distributed with the machine arm as the center line. The insertion holes 321 are used to install pins 31. Through the two insertion holes 321, the pins 31 can be switched during the hole-making process, thereby completing the hole-making on both sides of the end of the machine arm.

[0037] In some embodiments, a support seat 6 is also provided. The support seat 6 is disposed on the end of the substrate 1 away from the drilling assembly 4 and is located on the same plane as the drilling assembly 4. The support seat 6 is provided with a relief groove so that the relief groove fits into the motor seat and supports the motor seat.

[0038] The bearing seat 6 is used to directly support the motor mount. Although the alignment seat 5 has a certain supporting effect, its main function is alignment. During the alignment process, screws and other fasteners are needed for fixing. The bearing seat 6 supports the motor mount to prevent it from shifting slightly under pressure or gravity.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An unmanned aerial vehicle arm opening assembly tool, characterized in that: Includes a substrate (1), a limiting seat (2), a positioning seat (3), and a drilling assembly (4), wherein, The limiting seat (2) is fixed on the base plate (1). The limiting seat (2) has an arc groove (201) which is adapted to the outside of the arm to restrict the movement of the arm. The positioning seat (3) is disposed on the base plate (1). The positioning seat (3) includes a pin (31) for inserting into the hinge seat of the arm to prevent the arm from rotating. The punching assembly (4) includes a pressure cap (41), which is movably disposed on the base plate (1). The pressure cap (41) has a machining hole (411) on it. The central axis of the machining hole (411) is parallel to the pin (31). The pressure cap (41) is used to press against the end of the arm to make a hole in the end of the arm through the machining hole (411).

2. The unmanned aerial vehicle arm opening assembly tooling of claim 1, wherein: The punching assembly (4) also includes a fixing seat (42), the pressure cap (41) is hinged to the fixing seat (42), and the pressure cap (41) and the fixing seat (42) are provided with semi-circular grooves on opposite sides. The two semi-circular grooves can be engaged to form a mating opening to fit the machine arm.

3. The unmanned aerial vehicle arm bore assembly tool of claim 2, wherein: The punching assembly (4) also includes a pin (43), which is movably mounted on the fixed seat (42). The pressure cap (41) has a pin hole (412). The pin (43) is used to insert into the pin hole (412) after the pressure cap (41) and the fixed seat (42) are engaged to form a mating opening, thereby locking the pressure cap (41) and the fixed seat (42).

4. The unmanned aerial vehicle arm bore assembly tool of claim 1, wherein: It also includes a positioning seat (5), on which a calibration surface (501) is provided, and the pin (31) is perpendicular to the calibration surface (501). The calibration surface (501) is used to hold the motor base to correct the relative angle between the arm and the motor base.

5. The unmanned aerial vehicle arm bore assembly tool of claim 4, wherein: The number of the positioning seats (3) is set to two, and they are respectively close to the punching component (4) and the alignment seat (5).

6. The UAV arm opening assembly fixture as described in claim 5, characterized in that: The number of the limiting seats (2) is two, and both are set between the two positioning seats (3).

7. The unmanned aerial vehicle arm bore assembly tool of claim 1, wherein: The positioning seat (3) also includes a support (32), on which two insertion holes (321) are provided symmetrically distributed with the arm as the center line. The insertion holes (321) are used to install pins (31).

8. The unmanned aerial vehicle arm bore assembly tool of claim 1, wherein: It also includes a support base (6), which is disposed on the end of the substrate (1) away from the drilling assembly (4) and is located on the same plane as the drilling assembly (4). The support base (6) is provided with a relief groove so that the relief groove fits the motor seat and supports the motor seat.

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