A drilling fixture for the tail support and vertical tail assembly of a UAV

Abstract

The present invention discloses a drilling fixture for assembling a tail support and a vertical tail of an unmanned aerial vehicle, which is composed of a base plate, a drilling jig, a tail support sleeve positioning assembly, a vertical tail clamping assembly, a vertical tail support seat, a tail support sleeve, a vertical tail connecting sleeve, and a vertical tail; the base plate provides support for each component, and each component is symmetrically arranged with respect to the center line of the base plate; the tail support sleeve positioning assembly and the vertical tail clamping assembly are respectively located at one end of the base plate, and the vertical tail support seat is located at the other end of the base plate, and the drilling jig is fixed between the tail support sleeve positioning assembly and the vertical tail clamping assembly. By using the drilling jig, one-time drilling of the three-layer product of the tail support sleeve, the vertical tail connecting sleeve and the vertical tail of the unmanned aerial vehicle is achieved, and the assembly accuracy of the unmanned aerial vehicle product is ensured. By using the drilling jig, the hole position and hole accuracy of the tail support and vertical tail connecting holes of each sortie can be guaranteed. The drilling jig has a simple structure and can quickly realize the assembly drilling of the tail support and the vertical tail of the unmanned aerial vehicle, meeting the requirements of accurate assembly of the product and rapid interchange of the vertical tail components.

Description

Technical Field

[0001] The invention relates to a tooling design technology for unmanned aerial vehicles, and in particular to a drilling fixture for quickly and accurately assembling a tail support and vertical tail of a unmanned aerial vehicle and meeting the interchangeability requirements of vertical tail parts. Background Art

[0002] In recent years, UAVs have been used in many fields of civil and national defense. Based on their usage scenarios and multiple functional requirements, modern UAVs have gradually increased their requirements for fast and accurate assembly and interchangeability of product parts. The design of UAV tail support and vertical tail parts is constantly updated to meet this requirement. The assembly holes between the two are drilled separately, and their accuracy and concentricity cannot meet the requirements of fast assembly and coordinated interchangeability. Therefore, it is necessary to design a UAV tooling drilling fixture to meet the product's requirements for fast assembly and interchangeability and improve process efficiency.

[0003] Patent CN209364204U discloses "a drilling fixture for the engine arm of a hydraulically powered multi-rotor UAV". The drilling fixture for the engine arm of a hydraulically powered multi-rotor UAV does not require secondary clamping and positioning, and can complete the drilling clamping of the engine arm of a hydraulically powered multi-rotor UAV through one clamping and positioning. However, the fixture is only suitable for one-time clamping and positioning drilling of a single product, and cannot solve the problem of one-time drilling and reaming of multiple layers of products by separately clamping and positioning them in the same fixture. Summary of the invention

[0004] In order to avoid the shortcomings of the prior art, the present invention proposes a drilling fixture for assembling the tail support and vertical tail of a UAV. The drilling fixture has a simple structure and can quickly realize the assembly drilling of the tail support and vertical tail of the UAV, meeting the requirements of precise assembly of the product and rapid interchange of vertical tail components.

[0005] The technical solution adopted by the present invention to solve its technical problem is: comprising a base plate, a drilling jig, a tail support connecting sleeve positioning assembly, a vertical tail clamping assembly, a vertical tail support seat, a lifting eye bolt, a tail support connecting sleeve, a vertical tail connecting sleeve, and a vertical tail, characterized in that the base plate provides support for each component, and each component is symmetrically arranged with respect to the center line of the base plate; the tail support connecting sleeve positioning assembly and the vertical tail clamping assembly are respectively located at one end of the upper part of the base plate, the vertical tail support seat is located at the other end of the upper part of the base plate, and the drilling jig is located between the tail support connecting sleeve positioning assembly and the vertical tail clamping assembly; four lifting eye bolts are connected to the two ends of the upper part of the base plate in pairs;

[0006] The drilling jig is a U-shaped structure, and the bottom of the drilling jig is provided with symmetrical pin holes and screw holes. The drilling jig and the base plate are positioned and fixedly connected by positioning pins and connecting bolts. Concentric drilling jig holes are symmetrically opened on the two side walls of the drilling jig. Bushings are respectively embedded and pressed on the drilling jig holes, and the first quick-change drill sleeve and the second quick-change drill sleeve are respectively configured. Drill sleeve screws for positioning the quick-change drill sleeve are arranged below the drilling jig holes.

[0007] The tail support connecting sleeve positioning assembly comprises a tail support connecting sleeve locator base, a tail support connecting sleeve clamping piece, a rotating pin, a positioning latch and a rubber pad. The tail support connecting sleeve locator base is provided with a pin hole and a screw hole. The tail support connecting sleeve locator base is positioned and fixedly connected with the base plate by a positioning pin and a connecting bolt. An arc groove is opened in the middle of the upper part of the tail support connecting sleeve locator base, and a rotating pin and a positioning latch are arranged on both sides of the groove. An arc groove is opened in the middle of the lower part of the tail support connecting sleeve clamping piece, and shaft holes cooperating with the rotating pin and the positioning latch are respectively arranged below the two sides of the groove. The tail support connecting sleeve clamping piece is located above the outer side of the tail support connecting sleeve locator base, and the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece are connected by a rotating pin. When the tail support connecting sleeve is placed, the positioning latch is pulled out, and the tail support connecting sleeve clamping piece rotates around the rotating pin to open, and rubber pads are adhered to the groove profiles of the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece.

[0008] The vertical tail clamping assembly comprises a vertical tail clamping device base and a vertical tail clamping piece, wherein the vertical tail clamping device base is provided with a pin hole and a screw hole, the vertical tail clamping device base is positioned and fixedly connected to the bottom plate by a positioning pin and a connecting bolt, an arc groove is opened in the middle of the upper part of the vertical tail clamping device base, a rotating pin shaft and a positioning latch are respectively arranged on both sides of the groove, an arc groove is opened in the middle of the lower part of the vertical tail clamping piece, and shaft holes cooperating with the rotating pin shaft and the positioning latch are respectively arranged below the two sides of the groove, the vertical tail clamping piece is located above the inner side of the vertical tail clamping device base, rubber pads are adhered to the groove profile of the vertical tail clamping device base and the vertical tail clamping device base, the vertical tail clamping device base and the vertical tail clamping device are connected by a rotating pin shaft, the positioning latch is pulled out when the vertical tail connecting sleeve is placed, the vertical tail clamping device rotates around the rotating pin shaft to open, and the position of the vertical tail clamping device base is determined according to the end of the vertical tail rotating part;

[0009] The position of the vertical tail support seat is adjustable, and the vertical tail support seat is determined according to the vertical tail plate part to support the vertical tail profile and prevent the vertical tail from tilting and not being placed horizontally. The upper profile of the vertical tail support seat is inversely cut according to the vertical tail profile;

[0010] The steps for drilling holes for the tail support and vertical tail assembly are as follows:

[0011] Step 1. Fixture preparation: unplug the positioning pins on the tail support connection sleeve locator base and the tail support connection sleeve clamping piece, the vertical tail clamping piece base and the vertical tail clamping piece, and respectively rotate the tail support connection sleeve clamping piece and the vertical tail clamping piece around the rotating pin shaft to open;

[0012] Step 2. Place the tail support connecting sleeve; place the tail support connecting sleeve on the tail support connecting sleeve locator base, and the boss on the tail support connecting sleeve is embedded in the groove of the tail support connecting sleeve locator base to achieve positioning;

[0013] Step 3. Gluing: Gluing the vertical tail connecting sleeve and the vertical tail so that the vertical tail connecting sleeve and the vertical tail form an integral component;

[0014] Step 4. Place the vertical tail connection sleeve and the vertical tail integral part; place the glued vertical tail connection sleeve and the vertical tail integral part on the vertical tail hold-down device base and the vertical tail support seat, and push the vertical tail connection sleeve and the vertical tail integral part toward the already positioned tail support connection sleeve so that there is no gap between the two;

[0015] Step 5. Compress the product; return the tail support connecting sleeve clamping piece and the vertical tail clamping piece to their positions, and use the positioning pins to connect and tighten with the tail support connecting sleeve locator base and the vertical tail clamping base respectively to achieve product compression;

[0016] Step 6. Drilling: Place the first quick-change drill sleeve in the bushing embedded in the drill jig, clamp it with the drill sleeve screw, and use a hand drill to drill the tail support connecting sleeve, the vertical tail connecting sleeve, and the vertical tail three-layer product assembly holes. Then take out the first quick-change drill sleeve and replace it with the second quick-change drill sleeve, clamp it with the drill sleeve screw to position it, and drill the two jig holes simultaneously. The concentricity of the two jig holes is required to be ±0.05 to enable the product quick-release pin to be inserted or pulled out;

[0017] Step 7. Take out the product; after drilling is completed, pull out the positioning pin, open the tail support connecting sleeve clamping piece and the vertical tail clamping piece, and take out the tail support connecting sleeve, the vertical tail connecting sleeve and the vertical tail integral parts.

[0018] The positions of the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece are determined according to the end position of the tail support connecting sleeve, and the groove profile is inversely cut according to the profile of the tail support connecting sleeve. The groove can limit the rotation and forward and backward movement of the connecting sleeve.

[0019] The groove profiles of the vertical tail clamp base and the vertical tail clamp are inversely cut according to the vertical tail profile, and rubber pads are adhered to the groove profiles.

[0020] Beneficial Effects

[0021] The present invention proposes a drilling fixture for assembling a tail support and a vertical tail of an unmanned aerial vehicle, which is composed of a base plate, a drilling jig, a tail support sleeve positioning assembly, a vertical tail clamping assembly, a vertical tail support seat, a tail support sleeve, a vertical tail connecting sleeve, and a vertical tail; the base plate provides support for each component, and each component is symmetrically arranged with respect to the center line of the base plate; the tail support sleeve positioning assembly and the vertical tail clamping assembly are respectively located at one end of the base plate, and the vertical tail support seat is located at the other end of the base plate, and the drilling jig is fixed between the tail support sleeve positioning assembly and the vertical tail clamping assembly. By using the drilling jig, one-time drilling of the three-layer product of the tail support sleeve, the vertical tail connecting sleeve and the vertical tail of the unmanned aerial vehicle is achieved, and the assembly accuracy of the unmanned aerial vehicle product is ensured. By using the drilling jig, the hole position and hole accuracy of the tail support and vertical tail connecting holes of each sortie can be guaranteed. The drilling jig has a simple structure and can quickly realize the assembly drilling of the tail support and the vertical tail of the unmanned aerial vehicle, meeting the requirements of precise assembly of the product and rapid interchange of the vertical tail components.

[0022] The UAV tail support and vertical tail assembly drilling fixture of the present invention has a simple structure and is easy to operate. It can drill the tail support and vertical tail assembly connection holes at one time, thereby improving the process efficiency. The fixture is used to drill interchangeable tail support and vertical tail assembly holes of each sortie, thereby improving the reliability and stability of the UAV product interchange process, saving the interchange time and improving the efficiency of the drill test flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is a further detailed description of a drilling fixture for assembling a tail support and vertical tail of a UAV according to the present invention in conjunction with the accompanying drawings and implementation modes.

[0024] Figure 1 This is a schematic diagram of the structure of the drilling fixture for assembling the tail support and vertical tail of the UAV of the present invention.

[0025] Figure 2 A schematic diagram of the drilling jig structure of the UAV tail support vertical tail assembly drilling fixture of the present invention.

[0026] Figure 3 A schematic diagram of a tail support connecting sleeve positioner of a drilling fixture for assembling a tail support vertical tail of a UAV according to the present invention.

[0027] Figure 4 A schematic diagram of the structure of the vertical tail clamp of the tail support vertical tail assembly drilling fixture of the UAV of the present invention.

[0028] Figure 5 Schematic diagram of the installation position of the tail support connecting sleeve, vertical tail connecting sleeve, and vertical tail product on the drilling fixture when drilling.

[0029] In the picture

[0030] 1. Base plate 2. Drilling jig 3. Tail support connection sleeve locator base 4. Tail support connection sleeve clamp 5. Vertical tail clamp base 6. Vertical tail clamp 7. Vertical tail support seat 8. First quick-change drill sleeve 9. Second quick-change drill sleeve 10. Drill sleeve screw 11. Rotating pin 12. Positioning pin 13. Positioning pin 14. Connecting bolt 15. Rubber pad 16. Eye bolt 17. Tail support sleeve 18. Vertical tail connection sleeve 19. Vertical tail 20. Groove DETAILED DESCRIPTION

[0031] The present embodiment is a drilling fixture for assembling a tail support and vertical tail of a UAV.

[0032] See also Figure 1 to Figure 5The drilling fixture for assembling the tail support and vertical tail of the UAV in this embodiment is composed of a base plate 1, a drilling jig 2, a tail support connecting sleeve positioning assembly, a vertical tail clamping assembly, a vertical tail support seat 7, an eye bolt 16, a tail support connecting sleeve 17, a vertical tail connecting sleeve 18, and a vertical tail 19; wherein, the base plate 1 provides support for each component, and each component is symmetrically arranged with respect to the center line of the base plate 1; the tail support connecting sleeve positioning assembly and the vertical tail clamping assembly are respectively located at one end of the upper part of the base plate 1, and the vertical tail support seat 7 is located at the other end of the upper part of the base plate 1; the drilling jig 2 is fixed between the tail support connecting sleeve positioning assembly and the vertical tail clamping assembly; and four eye bolts 16 are connected to both ends of the upper part of the base plate 1 in pairs.

[0033] The drill jig 2 is a U-shaped structure with four symmetrical φ6 pin holes and M8 screw holes at the bottom of the drill jig 2. The drill jig 2 is positioned and fixedly connected to the base plate 1 by locating pins and connecting bolts. Concentric drill jig holes are symmetrically opened on the two side walls of the drill jig 2, and bushings are respectively embedded in the drill jig holes, and a first quick-change drill sleeve 8 and a second quick-change drill sleeve 9 are respectively configured. A drill sleeve screw 10 for positioning the quick-change drill sleeve is placed under the drill jig hole.

[0034] In this embodiment, the bottom plate 1 is made of a 15mm thick steel plate. The jig hole is used to drill the φ5 assembly hole on the three-layer rotating body product of the tail support connecting sleeve 17, the vertical tail connecting sleeve 18 and the vertical tail 19; the concentricity requirement of the two jig holes is ±0.05 to achieve smooth insertion and extraction of the product quick release pin. The jig hole is a φ18 through hole, and a 12F8×18r6×18 bushing is pressed into the hole. The bushing can be placed in the φ4.8 first quick-change drill sleeve 8 of 4.8F8×12k6×20 and the second quick-change drill sleeve 9 of 5F8×12k6×20. Below the jig hole is an M6 drill sleeve screw 10, which is used to position the first quick-change drill sleeve 8 and the second quick-change drill sleeve 9.

[0035] In this embodiment, the tail support connecting sleeve positioning assembly includes a tail support connecting sleeve locator base 3, a tail support connecting sleeve clamping piece 4, a rotating pin shaft 11, a positioning pin 12 and a rubber pad 15. There are pin holes and screw holes on the tail support connecting sleeve locator base 3. The tail support connecting sleeve locator base 3 is positioned and fixedly connected to the base plate 1 by a positioning pin 13 and a connecting bolt 14. An arc-shaped groove is opened in the middle of the upper part of the tail support connecting sleeve locator base 3, and a rotating pin shaft 11 and a positioning pin 12 are provided on both sides of the groove 20. An arc-shaped groove is opened in the middle of the lower part of the tail support sleeve clamp 4, and there are shaft holes on both sides of the groove that match the rotating pin 11 and the positioning pin 12. The tail support sleeve clamp 4 is located above the outer side of the tail support sleeve locator base 3, and the tail support sleeve locator base 3 and the tail support sleeve clamp 4 are connected through the rotating pin 11; when placing the tail support sleeve 17, the positioning pin 12 is pulled out, and the tail support sleeve clamp 4 rotates around the rotating pin 11 to open; after the tail support sleeve 17 is placed in place, the tail support sleeve clamp 4 rotates around the rotating pin 11 and lowers it, inserts the positioning pin 12, and the product can be compressed. The groove 20 on the tail support sleeve locator base 3 limits the rotation and forward and backward movement of the product during the drilling process, and a 3mm rubber pad 15 is glued to the arc-shaped groove profile of the tail support sleeve clamp 4 to prevent the product from being crushed.

[0036] The vertical tail clamping assembly includes a vertical tail clamping device base 5 and a vertical tail clamping member 6. The vertical tail clamping device base 5 is provided with pin holes and screw holes. The vertical tail clamping device base 5 is positioned and fixedly connected to the base plate 1 by positioning pins 13 and connecting bolts 14. An arc-shaped groove is opened in the middle of the upper part of the vertical tail clamping device base 5, and a rotating pin 11 and a positioning pin 12 are respectively provided on both sides of the groove 20. An arc-shaped groove is opened in the middle of the lower part of the vertical tail clamp 6, and axial holes cooperating with the rotating pin 11 and the positioning latch 12 are respectively provided at the lower sides of the groove; the vertical tail clamp 6 is located above the inner side of the vertical tail clamp base 5, and the vertical tail clamp base 5 and the vertical tail clamp 6 are connected by the rotating pin 11; when the vertical tail connecting sleeve 18 is placed, the positioning latch 12 is pulled out, and the vertical tail clamp 6 rotates around the rotating pin 11 to open; the position of the vertical tail clamp base 5 is determined according to the end of the vertical tail rotating part, and the arc-shaped groove profiles of the vertical tail clamp base 5 and the vertical tail clamp 6 are cut in reverse according to the profile of the vertical tail 19, and a 3mm rubber pad is adhered to the arc-shaped groove profile to prevent the product from being crushed.

[0037] The position of the vertical tail support seat 7 is adjustable, and the vertical tail support seat 7 is positioned and fixedly connected to the base plate 1 by means of positioning pins 13 and connecting bolts 14; the vertical tail support seat 7 is determined according to the vertical tail plate part to support the vertical tail profile and prevent the vertical tail from tilting and not being placed horizontally, and its profile is inversely cut according to the vertical tail profile.

[0038] In this embodiment, the steps of assembling the drilling fixture to drill the assembly holes of the tail support and vertical tail of the drone are as follows:

[0039] 1. Fixture preparation; unplug the positioning pins 12 on the tail support connecting sleeve locator base 3 and the tail support connecting sleeve clamping piece 4, the vertical tail clamping piece base 5 and the vertical tail clamping piece 6, and rotate the tail support connecting sleeve clamping piece 4 and the vertical tail clamping piece 6 around the rotating pin shaft 11 respectively to open the tail support connecting sleeve clamping piece 4 and the vertical tail clamping piece 6.

[0040] 2. Place the tail support connecting sleeve 17; Place the tail support connecting sleeve 17 on the tail support connecting sleeve locator base 3, and the boss on the tail support connecting sleeve 17 is embedded in the groove of the tail support connecting sleeve locator base 3 to achieve positioning, while limiting the rotation and forward and backward movement of the product during the drilling process.

[0041] 3. Gluing: Gluing the vertical tail connecting sleeve 18 and the vertical tail 19 so that the vertical tail connecting sleeve 18 and the vertical tail 19 form an integral component.

[0042] 4. Place the product parts; place the glued vertical tail connecting sleeve 18 and the vertical tail 19 integral parts on the vertical tail hold-down device base 5 and the vertical tail support seat 7, and push the vertical tail connecting sleeve 18 and the vertical tail 19 integral parts toward the already positioned tail support connecting sleeve 17 so that there is no gap between the two.

[0043] 5. Product compression; return the tail support connecting sleeve clamping piece 4 and the vertical tail clamping piece 6 to their positions respectively, and use the positioning pin 12 to connect and tighten with the tail support connecting sleeve locator base 3 and the vertical tail clamping base 5 respectively to achieve product compression.

[0044] 6. Drilling: First, place the first quick-change drill sleeve 8 of Φ4.8 in the bushing inlaid with the drill jig 2, fix it in place with the drill sleeve screw 10, and use a hand drill to drill the assembly holes of the three-layer product of the tail support connecting sleeve 17, the vertical tail connecting sleeve 18, and the vertical tail 19 to Φ4.8, then take out the first quick-change drill sleeve 8 of Φ4.8, replace it with the second quick-change drill sleeve 9 of Φ5, fix it in place with the drill sleeve screw 10, and ream the Φ4.8 hole to Φ5, and drill the two jig holes simultaneously; the two jig holes are used to drill the assembly holes on the three-layer rotating body products of the tail support connecting sleeve 17, the vertical tail connecting sleeve 18 and the vertical tail 19, and the concentricity of the two jig holes is required to be ±0.05 to achieve smooth insertion and removal of the product quick-release pins.

[0045] 7. Take out the product; after drilling is completed, pull out the positioning pin 12, open the tail support connecting sleeve clamping piece 4 and the vertical tail clamping piece 6, and take out the tail support connecting sleeve 17, the vertical tail connecting sleeve 18 and the vertical tail 19 integral parts.

[0046] 8. Product assembly and interchangeability. Insert the tail support connecting sleeve 17 and the tail support integral part glued in step 7 into the vertical tail connecting sleeve 18 and the vertical tail 19 integral part glued in step 3, align with the drilled assembly holes, and insert the product quick release pins to complete the tail support and vertical tail assembly; when interchangeability is required, pull out the quick release pins, take out the vertical tail connecting sleeve 18 and the vertical tail 19 assembly, replace them with new assemblies, and then insert the quick release pins to complete the interchangeability.

Claims

1. A drilling fixture for assembling a tail support and a vertical tail of an unmanned aerial vehicle, comprising a base plate, a drilling jig, a tail support connection sleeve positioning assembly, a vertical tail clamping assembly, a vertical tail support seat, an eye bolt, a tail support connection sleeve, a vertical tail connection sleeve, and a vertical tail, characterized in that : The base plate provides support for each component, and each component is symmetrically arranged with respect to the center line of the base plate; the tail support sleeve positioning assembly and the vertical tail clamping assembly are respectively located at one end of the upper part of the base plate, the vertical tail support seat is located at the other end of the upper part of the base plate, and the drilling jig is located between the tail support sleeve positioning assembly and the vertical tail clamping assembly; four eye bolts are connected to both ends of the upper part of the base plate in pairs; The drilling jig is a U-shaped structure, and the bottom of the drilling jig is provided with symmetrical pin holes and screw holes. The drilling jig and the base plate are positioned and fixedly connected by positioning pins and connecting bolts. Concentric drilling jig holes are symmetrically opened on the two side walls of the drilling jig. Bushings are respectively embedded and pressed on the drilling jig holes, and the first quick-change drill sleeve and the second quick-change drill sleeve are respectively configured. Drill sleeve screws for positioning the quick-change drill sleeve are arranged below the drilling jig holes. The tail support connecting sleeve positioning assembly comprises a tail support connecting sleeve locator base, a tail support connecting sleeve clamping piece, a rotating pin, a positioning latch and a rubber pad. The tail support connecting sleeve locator base is provided with a pin hole and a screw hole. The tail support connecting sleeve locator base is positioned and fixedly connected with the base plate by a positioning pin and a connecting bolt. An arc groove is opened in the middle of the upper part of the tail support connecting sleeve locator base, and a rotating pin and a positioning latch are arranged on both sides of the groove. An arc groove is opened in the middle of the lower part of the tail support connecting sleeve clamping piece, and shaft holes cooperating with the rotating pin and the positioning latch are respectively arranged below the two sides of the groove. The tail support connecting sleeve clamping piece is located above the outer side of the tail support connecting sleeve locator base, and the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece are connected by a rotating pin. When the tail support connecting sleeve is placed, the positioning latch is pulled out, and the tail support connecting sleeve clamping piece rotates around the rotating pin to open, and rubber pads are adhered to the groove profiles of the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece. The vertical tail clamping assembly comprises a vertical tail clamping device base and a vertical tail clamping piece, wherein the vertical tail clamping device base is provided with a pin hole and a screw hole, the vertical tail clamping device base is positioned and fixedly connected to the bottom plate by a positioning pin and a connecting bolt, an arc groove is opened in the middle of the upper part of the vertical tail clamping device base, a rotating pin shaft and a positioning latch are respectively arranged on both sides of the groove, an arc groove is opened in the middle of the lower part of the vertical tail clamping piece, and shaft holes cooperating with the rotating pin shaft and the positioning latch are respectively arranged below the two sides of the groove, the vertical tail clamping piece is located above the inner side of the vertical tail clamping device base, rubber pads are adhered to the groove profile of the vertical tail clamping device base and the vertical tail clamping device base, the vertical tail clamping device base and the vertical tail clamping device are connected by a rotating pin shaft, the positioning latch is pulled out when the vertical tail connecting sleeve is placed, the vertical tail clamping device rotates around the rotating pin shaft to open, and the position of the vertical tail clamping device base is determined according to the end of the vertical tail rotating part; The position of the vertical tail support seat is adjustable, and the vertical tail support seat is determined according to the vertical tail plate part to support the vertical tail profile and prevent the vertical tail from tilting and not being placed horizontally. The upper profile of the vertical tail support seat is inversely cut according to the vertical tail profile; The steps for drilling holes for the tail support and vertical tail assembly are as follows: Step 1. Fixture preparation: unplug the positioning pins on the tail support connection sleeve locator base and the tail support connection sleeve clamping piece, the vertical tail clamping piece base and the vertical tail clamping piece, and respectively rotate the tail support connection sleeve clamping piece and the vertical tail clamping piece around the rotating pin shaft to open; Step 2. Place the tail support connecting sleeve; place the tail support connecting sleeve on the tail support connecting sleeve locator base, and the boss on the tail support connecting sleeve is embedded in the groove of the tail support connecting sleeve locator base to achieve positioning; Step 3. Gluing: Gluing the vertical tail connecting sleeve and the vertical tail so that the vertical tail connecting sleeve and the vertical tail form an integral component; Step 4. Place the vertical tail connection sleeve and the vertical tail integral part; place the glued vertical tail connection sleeve and the vertical tail integral part on the vertical tail hold-down device base and the vertical tail support seat, and push the vertical tail connection sleeve and the vertical tail integral part toward the already positioned tail support connection sleeve so that there is no gap between the two; Step 5. Compress the product; return the tail support connecting sleeve clamping piece and the vertical tail clamping piece to their positions, and use the positioning pins to connect and tighten with the tail support connecting sleeve locator base and the vertical tail clamping base respectively to achieve product compression; Step 6. Drilling: Place the first quick-change drill sleeve in the bushing embedded in the drill jig, clamp it with the drill sleeve screw, and use a hand drill to drill the tail support connecting sleeve, the vertical tail connecting sleeve, and the vertical tail three-layer product assembly holes. Then take out the first quick-change drill sleeve and replace it with the second quick-change drill sleeve, clamp it with the drill sleeve screw to position it, and drill the two jig holes simultaneously. The concentricity of the two jig holes is required to be ±0.05 to enable the product quick-release pin to be inserted or pulled out; Step 7. Take out the product; after drilling is completed, pull out the positioning pin, open the tail support connecting sleeve clamping piece and the vertical tail clamping piece, and take out the tail support connecting sleeve, the vertical tail connecting sleeve and the vertical tail integral parts.

2. The drilling fixture for assembling the tail support and vertical tail of the UAV according to claim 1 is characterized in that The positions of the tail support connecting sleeve locator base and the tail support connecting sleeve clamping piece are determined according to the end position of the tail support connecting sleeve, and the groove profile is inversely cut according to the profile of the tail support connecting sleeve. The groove can limit the rotation and forward and backward movement of the connecting sleeve.

3. The drilling fixture for assembling the tail support and vertical tail of the UAV according to claim 1 is characterized in that The groove profiles of the vertical tail clamp base and the vertical tail clamp are inversely cut according to the vertical tail profile, and a rubber pad is adhered to the groove profile.

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