Quick positioning and clamping mechanism for arms of multi-rotor unmanned aerial vehicle

Abstract

The utility model provides a quick positioning and clamping mechanism for a multi-rotor unmanned aerial vehicle arm, which belongs to the technical field of unmanned aerial vehicle arm assembly and comprises a base provided with a containing groove, a positioning part and a first connecting part, and the positioning part is located at the bottom of the containing groove; the vehicle arm can be inserted into the accommodating groove and is in contact with the positioning part; the clamping assembly is detachably connected with the base, the clamping assembly comprises a second connecting part and a clamping part, the second connecting part is detachably connected with the first connecting part, and the clamping part is used for clamping the machine arm. The rapid positioning and clamping device has the advantages that when the vehicle arm is installed, the vehicle arm is inserted into the containing groove and inserted to the bottom to make contact with the positioning part, positioning can be completed, the link that in traditional assembling, the length needs to be measured and determined through a ruler is omitted, meanwhile, clamping is achieved through the clamping assembly, and rapid positioning and clamping of the unmanned aerial vehicle arm can be completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned aerial vehicle arm assembly technical field relates to a kind of multi-rotor unmanned aerial vehicle arm quick positioning clamping mechanism. BACKGROUND

[0002] With the diversification of unmanned aerial vehicle application scenarios (such as city logistics, agricultural plant protection, emergency rescue, etc.), the market has higher requirements for the production efficiency of unmanned aerial vehicles during installation, adjustment and repair, such as multi-rotor arm installation and positioning function.

[0003] The existing unmanned aerial vehicle arm installation procedure is complicated, and the arm needs to be inserted upright during installation, and the insertion length needs to be measured with a ruler, which brings great inconvenience to the installation personnel. Most of the market uses bearing shells to form clamping force to clamp the arm, and there is also an integrated open clamping method. These are more troublesome during assembly and maintenance, and there is a lot of room for improvement. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in prior art, and proposes a kind of multi-rotor unmanned aerial vehicle arm quick positioning clamping mechanism.

[0005] The purpose of the utility model can be realized by the following technical scheme: a kind of multi-rotor unmanned aerial vehicle arm quick positioning clamping mechanism, comprising:

[0006] a base provided with a receiving groove, a positioning portion and a first connecting portion, the positioning portion is located at the bottom of the receiving groove;

[0007] an arm that can be inserted into the receiving groove and in contact with the positioning portion;

[0008] a clamping assembly detachably connected to the base, the clamping assembly includes a second connecting portion and a clamping portion, the second connecting portion is detachably connected to the first connecting portion, and the clamping portion is used to clamp the arm.

[0009] In the above-mentioned multi-rotor unmanned aerial vehicle arm quick positioning clamping mechanism, the clamping assembly includes a fastening seat and a collet, the second connecting portion is provided on the fastening seat, the clamping portion is provided on the collet, the collet is connected with the fastening seat and can be contracted or relaxed relative to the fastening seat, the receiving groove includes a first linkage portion, the collet is provided with a second linkage portion, the first linkage portion can be in contact with the second linkage portion, and when the first linkage portion is in contact with the second linkage portion, the fastening seat approaches the base to drive the collet to contract.

[0010] In the above-mentioned multi-rotor unmanned aerial vehicle arm quick positioning clamping mechanism, the collet is a spring collet, and the collet can relax spontaneously.

[0011] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the first linkage part is a first taper surface, and when the fastening seat body approaches the base, the collet is retracted by moving along the first taper surface through the second linkage part.

[0012] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the second linkage part is a second taper surface, and when the fastening seat body approaches the base, the collet is retracted by moving along the first linkage part through the second taper surface.

[0013] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the first connecting part is a first thread, and the second connecting part is a second thread, and the second thread can be threadedly connected with the first thread.

[0014] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the accommodating groove comprises a guide hole, and the positioning part is located at one end of the guide hole, and the shape of the guide hole is matched with the shape of the arm.

[0015] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the positioning part is formed by the side of the guide hole protruding towards the center.

[0016] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the number of the positioning parts is at least two, and each positioning part is distributed around the center of the guide hole.

[0017] In the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism, the base is provided with a mounting hole.

[0018] Compared with the prior art, the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism has the following beneficial effects:

[0019] 1. When the arm is installed, the arm is inserted into the accommodating groove and inserted to the bottom to contact the positioning part, so that the positioning is completed, the length measurement step required in traditional assembly is reduced, and the clamping is realized through the clamping assembly, so that the quick positioning and clamping of the unmanned aerial vehicle arm is completed.

[0020] 2. When the first linkage part and the second linkage part are in contact, the fastening seat body approaches the base to drive the collet to retract, so that the effective clamping of the arm is realized, the installation steps are simplified, the linkage of the components of the multi-rotor unmanned aerial vehicle arm quick positioning and clamping mechanism is close, and the structure is compact.

[0021] 3. When the fastening seat body approaches the base, the collet is retracted by moving along the first taper surface through the second linkage part, so that the original axial movement of the collet is converted into radial retraction and expansion, and then the clamping or release of the arm is realized.

[0022] 4. The second thread is threadedly connected with the first thread, so that the fastening seat body is threadedly connected with the base, realizing that the fastening seat body is movable relative to the base and stepless adjustment therebetween and real-time self-locking.

[0023] 5. The positioning part is formed by protruding from the side of the guide hole towards the center, so that the entire base can be integrally formed and features such as the guide hole and the positioning part are formed, so that production and manufacturing are convenient and simple. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the multi-rotor unmanned aerial vehicle arm rapid positioning and clamping mechanism.

[0025] Figure 2 It is an exploded view of the multi-rotor unmanned aerial vehicle arm rapid positioning and clamping mechanism.

[0026] Figure 3 It is a front view of the multi-rotor unmanned aerial vehicle arm rapid positioning and clamping mechanism.

[0027] Figure 4 It is a sectional view of the A-A perspective view. Figure 3

[0028] Figure 5 It is an exploded view of the A-A perspective view. Figure 4

[0029] In the figure, 100 is a base; 111 is a first conical surface; 112 is a guide hole; 120 is a positioning part; 130 is a first thread; 140 is a mounting hole; 200 is an arm; 310 is a fastening seat body; 311 is a second thread; 320 is a spring cylinder clamp; 321 is a clamping part; and 322 is a second conical surface. DETAILED DESCRIPTION

[0030] The following is a specific embodiment of the utility model and is further described in combination with the drawings, but the utility model is not limited to these embodiments.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model embodiments are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0032] ​​In addition, in the utility model, the description such as "first", "second", "one" is only used for the purpose of description, and can not be understood as indicating or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the utility model, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, and it is not within the protection scope required by the utility model.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0036] As shown in FIG. Figures 1-5 A multi-rotor unmanned aerial vehicle arm rapid positioning clamping mechanism, comprising: a base 100, an arm 200 and a clamping assembly.

[0037] Among them, the base 100 is provided with containing groove, positioning part 120 and first connecting part, the positioning part 120 is located at the bottom of containing groove.

[0038] Specifically, the base 100 is used for connecting with the body of unmanned aerial vehicle.

[0039] Among them, the arm 200 can be inserted into containing groove and contact with positioning part 120.

[0040] The clamping assembly is detachably connected to the base 100. The clamping assembly includes a second connecting part and a clamping part 321. The second connecting part is detachably connected to the first connecting part. The clamping part 321 is used to clamp the arm 200.

[0041] The clamping component is not specifically limited here; it can be a clamp structure, a screw fastening structure, or other structures.

[0042] In this embodiment, when installing the arm 200, the arm 200 is inserted into the receiving groove and inserted to the bottom to contact the positioning part 120 to complete the positioning. This reduces the step of measuring and determining the length with a ruler required in traditional assembly. At the same time, the clamping component is used to clamp the arm, thus completing the quick positioning and clamping of the UAV arm 200.

[0043] like Figures 1-5 As shown, based on the above embodiment, the clamping assembly includes a fastening base 310 and a collet. The second connecting portion is disposed on the fastening base 310, and the clamping portion 321 is disposed on the collet. The collet is connected to the fastening base 310 and can contract or expand relative to the fastening base 310. The receiving groove includes a first linkage portion, and the collet is provided with a second linkage portion. The first linkage portion can contact the second linkage portion. When the first linkage portion contacts the second linkage portion, the fastening base 310 moves closer to the base 100, causing the collet to contract.

[0044] In this embodiment, when the first linkage part contacts the second linkage part, the fastening seat 310 moves close to the base 100 and drives the collet to retract, thereby effectively clamping the arm 200, simplifying the installation steps, and making the linkage of each component of the multi-rotor UAV arm 200 quick positioning clamping mechanism tight and the structure compact.

[0045] like Figures 1-5 As shown, based on the above embodiment, the collet is a spring collet 320, which can automatically expand and contract.

[0046] It is worth noting that the spring collet 320 is a device for securing workpieces or tools. It is a cylindrical or conical metal ring with an internal gap that allows it to deform elastically. The collet can reduce its inner diameter by applying external pressure (such as tightening a nut), thereby gripping the object inserted into it tightly.

[0047] Collets can provide very precise positioning and clamping force, suitable for precision machining needs, and allow for quick and accurate tool or workpiece changes, reducing downtime. They can also provide evenly distributed clamping force to prevent damage to the machine arm.

[0048] In this embodiment, the collet can expand spontaneously, thus remaining open in the absence of external pressure, facilitating the insertion of the machine arm 200; while after applying appropriate pressure, it can firmly clamp the machine arm 200.

[0049] like Figures 1-5 As shown, based on the above embodiment, the first linkage part is a first conical surface 111. When the fastening seat 310 approaches the base 100, the collet retracts by moving along the first conical surface 111 through the second linkage part.

[0050] In this embodiment, when the fastening seat 310 approaches the base 100, the collet moves along the first conical surface 111 through the second linkage part and retracts, thereby converting the original axial movement of the collet into radial contraction and expansion, thereby achieving clamping or releasing of the machine arm 200.

[0051] like Figures 1-5 As shown, based on the above embodiment, the second linkage part is a second conical surface 322. When the fastening seat 310 approaches the base 100, the collet moves along the first linkage part through the second conical surface 322 and retracts.

[0052] In this embodiment, when the fastening seat 310 approaches the base 100, the collet moves along the first linkage part through the second conical surface 322 and contracts, thereby converting the original axial movement of the collet into radial contraction and expansion, thereby achieving clamping or releasing of the machine arm 200.

[0053] In addition, both of the above implementation methods can be applied simultaneously, that is, the first linkage part is the first conical surface 111, the second linkage part is the second conical surface 322, and when the fastening seat 310 approaches the base 100, the collet retracts by moving along the first conical surface 111 through the second conical surface 322.

[0054] like Figures 1-5 As shown, based on the above embodiment, the first connecting part is a first thread 130, the second connecting part is a second thread 311, and the second thread 311 can be threadedly connected to the first thread 130.

[0055] In this embodiment, the second thread 311 can be threadedly connected to the first thread 130, thereby enabling the fastening seat 310 to be threadedly connected to the base 100, realizing that the fastening seat 310 can move relative to the base 100 and the two can be infinitely adjusted and self-locked in real time.

[0056] It is also worth noting that the collet is rotatably connected to the fastening seat 310 to prevent the collet from scraping against the machine arm 200 when clamping it.

[0057] likeFigures 1-5 As shown, based on the above embodiment, the receiving groove includes a guide hole 112, the positioning part 120 is located at one end of the guide hole 112, and the shape of the guide hole 112 is adapted to the shape of the arm 200.

[0058] In this embodiment, the shape of the guide hole 112 is adapted to the shape of the arm 200, so the arm 200 can move along the guide hole 112 when it is inserted into the base 100, while the guide hole 112 limits and guides the arm 200 in other directions of movement.

[0059] like Figures 1-5 As shown, based on the above embodiment, the positioning part 120 is formed by the side of the guide hole 112 protruding towards the center.

[0060] In this embodiment, the positioning part 120 is formed by the side of the guide hole 112 protruding towards the center. Therefore, the entire base 100 can be integrally formed and features such as the guide hole 112 and the positioning part 120 can be formed, making production and manufacturing convenient and simple.

[0061] like Figures 1-5 As shown, based on the above embodiment, the number of positioning parts 120 is at least two, and each positioning part 120 is distributed around the center of the guide hole 112.

[0062] In this embodiment, the design of multiple positioning parts 120 distributed around the center of the guide hole 112 not only enhances the fixing effect of the arm 200, but also disperses the force, reduces the load on a single positioning point, and extends the service life.

[0063] like Figures 1-5 As shown, based on the above embodiment, the base 100 is provided with mounting holes 140.

[0064] Specifically, mounting hole 140 is a threaded hole.

[0065] In this embodiment, the mounting hole 140 of the base 100 is used to connect with the body of the drone, so the base 100 can be connected to the body of the drone by fasteners.

Claims

1. A rapid positioning and clamping mechanism for the arm of a multi-rotor unmanned aerial vehicle (UAV), characterized in that, include: The base is provided with a receiving groove, a positioning part and a first connecting part, wherein the positioning part is located at the bottom of the receiving groove; A machine arm that can be inserted into the receiving slot and contact the positioning part; A clamping assembly is detachably connected to the base. The clamping assembly includes a second connecting portion and a clamping portion. The second connecting portion is detachably connected to the first connecting portion. The clamping portion is used to clamp the machine arm.

2. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 1, characterized in that: The clamping assembly includes a fastening base and a collet. The second connecting portion is disposed on the fastening base, and the clamping portion is disposed on the collet. The collet is connected to the fastening base and can contract or expand relative to the fastening base. The receiving groove includes a first linkage portion, and the collet is provided with a second linkage portion. The first linkage portion can contact the second linkage portion. When the first linkage portion contacts the second linkage portion, the fastening base moves closer to the base, causing the collet to contract.

3. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 2, characterized in that: The collet is a spring collet, which can automatically expand and contract.

4. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 2, characterized in that: The first linkage part is a first conical surface. When the fastening seat is close to the base, the collet retracts by moving along the first conical surface through the second linkage part.

5. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 2, characterized in that: The second linkage part is a second conical surface. When the fastening seat is close to the base, the collet moves along the first linkage part through the second conical surface and retracts.

6. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 1, characterized in that: The first connecting part is a first thread, and the second connecting part is a second thread, which can be threadedly connected to the first thread.

7. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 1, characterized in that: The receiving groove includes a guide hole, the positioning part is located at one end of the guide hole, and the shape of the guide hole is adapted to the shape of the arm.

8. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 7, characterized in that: The positioning part is formed by the side of the guide hole protruding towards the center.

9. A rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 8, characterized in that: The number of positioning parts is at least two, and each positioning part is distributed around the center of the guide hole.

10. The rapid positioning and clamping mechanism for a multi-rotor UAV arm as described in claim 1, characterized in that: The base is provided with mounting holes.

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