An automatic drilling and riveting glue injection tool

Abstract

The application discloses an automatic drilling and riveting glue injection tool and belongs to the technical field of airplane assembly. A fixing device, a piston drive and a glue barrel shell are fixed on a glue injection tool bottom plate. The fixing device is used for mounting the glue injection tool on an automatic drilling and riveting work head. The glue barrel shell is clamped and fixed with the glue barrel. The piston drive is used for driving the glue injection piston to extrude the glue liquid in the glue barrel through a PU hose. The fixing device is fixed with a supporting arm drive. The supporting arm drive is a lever structure controlled by a cylinder. The front end of the supporting arm drive is fixed with a glue injection mechanism supporting arm. The cylinder drives the lever to extend, so that the glue injection mechanism supporting arm extends to a glue injection position. The application can solve the glue injection problem of the automatic drilling and riveting equipment, has a simple structure, is convenient to operate, is convenient to replace the sealing glue and improves the production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of aircraft assembly technology and relates to an automatic drilling, riveting and adhesive injection tool. Background Technology

[0002] In aircraft manufacturing, the application of sealant to wet-install fasteners is a crucial step in the assembly process. The application of sealant to both countersunk and convex fasteners is as follows: Figure 1 As shown, with the development of automated equipment, automated assembly has become the mainstream trend in aircraft manufacturing. How to solve the problem of effective glue injection in automated equipment has become one of the key issues in the research of automated equipment. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an automatic drilling and riveting adhesive injection tool, suitable for automatic drilling and riveting equipment. It solves the adhesive injection problem in automatic drilling and riveting equipment, has a simple structure, is easy to operate, facilitates the replacement of sealant, and improves production efficiency.

[0004] The technical solution adopted in this invention is as follows:

[0005] An automatic drilling and riveting adhesive injection tool, comprising a base plate 1, a fixing device 2, a support arm drive 3, an adhesive injection mechanism support arm 4, a piston drive 5, an adhesive injection piston 6, an adhesive tank shell 7, an adhesive tank 8, and a PU hose 9.

[0006] The base plate 1 is used to fix and connect the piston drive 5, the glue bucket shell 7, and the fixing device 2.

[0007] The main body of the fixing device 2 is a rigid plate with assembly holes, which is fixedly connected to the base plate 1. It is used to fix the entire automatic drilling and riveting glue injection tool to the automatic drilling and riveting working head. The structure can be adjusted according to the shape of the equipment.

[0008] The outrigger drive 3 includes a cylinder 31, a drive housing 32, a positioning nut 33, a joint bearing 34, a lever 35, a bolt 36, a drive housing cover plate 37, an adjusting washer 38, and a stop 39. The drive housing 32 and the drive housing cover plate 37 are fixedly connected to form a housing with openings at both ends. The drive housing 32 is fixedly connected to the bottom of the fixing device 2. One end of the drive housing cover plate 37 and the drive housing 32 opposite to the drive housing cover plate 37 is symmetrically provided with strip-shaped slots arranged along the length direction, and the other end is symmetrically provided with bolt holes. A stop 39 is fixed to the end of the cylinder. The cylinder 31 is fixed to one side of the outer wall of the drive housing 32. The end of its output shaft with the strip-shaped slot extends out, and the end of the output shaft is fixed with a spherical bearing 34 by a positioning nut 33. The lever 35 is located inside the drive housing 32. One end of the lever 35 is fixed with a bolt 36. One end of the bolt 36 passes through the strip-shaped slot on the drive housing 32 and is fixed to the spherical bearing 34. The other end of the bolt 36 is engaged with the strip-shaped slot on the other side of the drive housing 32. The other end of the lever 35 is provided with a long strip-shaped slot. A bolt 36 passes through the elongated through hole and its two ends are fixed in the bolt holes on the drive housing 32. An adjusting washer 38 is placed between the bolt 36 and the two bolt holes. The bottom of the end of the lever 35 with the elongated through hole has a screw hole and a protruding stepped surface, and the screw hole is closer to the end. The cylinder 31 drives the spherical bearing 34 to push the lever 35 to reciprocate along the strip-shaped slot on the drive housing 32 and the elongated through hole on the lever 35. When the lever 35 retracts into the drive housing 32, its stepped surface cooperates with the stop 39 to prevent the two bolts 36 from contacting the elongated through hole on the lever 35 or the end hole wall of the strip-shaped slot on the drive housing 32, thus playing a protective role. The screw hole on the lever 35 cooperates with the screw 46 on the glue injection mechanism support arm 4, driving the glue injection mechanism support arm 4 to move back and forth, realizing the switching between the glue injection station and the glue injection waiting station.

[0009] The glue injection mechanism support arm 4 includes a glue injection connector 41, a hose guide rail 42, an adapter 43, a guide arm 44, a hose fixing mechanism 45, and a connector 47. The connector 47 has a screw 46 at its upper end, which is fixedly connected to the screw hole on the lever 35 in the support arm drive 3. One end of the guide arm 44 is fixedly connected to the end of the connector 47, and the other end is fixedly connected to one end of the hose guide rail 42, forming an L-shaped glue injection mechanism support arm 4. The hose guide rail 42 has a guide groove along its length, and its connection end with the guide arm 44 has a through hole communicating with the guide groove for the PU hose 9 to pass through. The other end has a post. The shaped groove is used to clamp the glue injection connector 41, making it easy to disassemble and replace. The glue injection connector 41 has an L-shaped through hole inside. One end of the through hole opens to the side wall and is threaded to the adapter 43. The other end of the through hole opens to the lower end of the glue injection connector 41 and is threaded to the glue injection nozzle. The glue injection connector 41 is clamped in the cylindrical groove of the hose guide rail 42. The adapter 43 extends into the guide groove of the hose guide rail 42. One end of the PU hose 9 passes through the through hole at the end of the hose guide rail 42 into the guide groove and is connected to the adapter 43. The hose fixing mechanism 45 is fixed to the side of the guide arm 44 to guide and fix the PU hose 9 and avoid interference.

[0010] The piston drive 5 is a linear motor, which is fixed on the upper part of the base plate 1, and a rod-shaped glue injection piston 6 is fixed at the end of its output shaft.

[0011] The outer shell 7 of the glue bucket includes a fixing frame 71, a baffle 72, and a handle 73. The fixing frame 71 is fixedly connected to the lower part of the base plate 1, and the baffle 72 is detachably fixed to the fixing frame 71. The two together form a barrel-shaped inner cavity for clamping and fixing the glue bucket 8. The baffle 72 is provided with a handle 73 for easy operation.

[0012] The glue bucket 8 includes a glue bucket piston 81, a glue storage bucket 82, and a hose connector 83. The top of the glue storage bucket 82 is provided with a boss that abuts against the upper end face of the fixing frame 71 and the baffle 72. The glue bucket piston 81 slides in cooperation with the inner wall of the glue storage bucket 82. The hose connector 83 at the bottom of the glue storage bucket 82 is connected to the other end of the PU hose 9. The piston drive 5 drives the glue injection piston 6 to push the glue bucket piston 81 to move, squeezing the sealant out of the glue storage bucket 82. The amount of sealant injected is precisely controlled by the piston drive 5.

[0013] Furthermore, the dispensing nozzle is made of wear-resistant plastic and has various sizes of dispensing outlets to meet different dispensing needs, and can be directly replaced after use.

[0014] The automatic drilling and riveting adhesive injection tool is used in the following way: the piston drive 5 drives the adhesive injection piston 6 to squeeze the sealant out of the adhesive can 8, and at the same time the support arm drive 3 drives the adhesive injection mechanism support arm 4 to inject the sealant into the fastener hole.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The mechanism is highly adaptable and can be adjusted by modifying the base plate and fixing device to make it suitable for glue injection work on various drilling and riveting equipment;

[0017] 2. Simple structure, easy operation, and motor-driven glue injection, which allows for good control of the glue injection amount;

[0018] 3. The glue bucket, PU hose, and glue nozzle are all made of plastic and can be directly replaced after use, improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the location of the adhesive application on the fasteners.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the base plate structure.

[0022] Figure 4 This is a schematic diagram of the outrigger drive structure.

[0023] Figure 5 AA view for outrigger drive.

[0024] Figure 6 BB view for outrigger drive.

[0025] Figure 7 This is a schematic diagram of the support arm structure of the glue injection mechanism.

[0026] Figure 8 This is a schematic diagram of the connector structure.

[0027] Figure 9 The diagram shows the structure of the glue injection joint, where (a) is a cross-sectional view of the glue injection joint and (b) is a schematic diagram of the glue injection joint connection.

[0028] Figure 10 Example of a countersunk fastener nozzle Figure 1 .

[0029] Figure 11 Example of a nozzle for a convex fastener Figure 1 .

[0030] Figure 12 Example of a countersunk fastener nozzle Figure 2 .

[0031] Figure 13 Example of a nozzle for a convex fastener Figure 2 .

[0032] Figure 14This is a schematic diagram of the outer shell structure of the glue bucket, where (a) is the front view and (b) is the side view.

[0033] Figure 15 This is a schematic diagram of the glue bucket structure.

[0034] In the diagram: 1. Base plate; 2. Fixing device; 3. Support arm drive; 4. Glue injection mechanism support arm; 5. Piston drive; 6. Glue injection piston; 7. Glue bucket shell; 8. Glue bucket; 9. PU hose; 31. Cylinder; 32. Drive shell; 33. Positioning nut; 34. Joint bearing; 35. Lever; 36. Bolt; 37. Drive shell cover plate; 38. Adjusting washer; 39. Stop; 41. Glue injection connector; 42. Hose guide rail; 43. Adapter; 44. Guide arm; 45. Hose fixing mechanism; 46. Hex socket screw; 47. Connector; 71. Fixing bracket; 72. Baffle; 73. Handle; 81. Glue bucket piston; 82. Glue storage bucket; 83. Hose connector. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments derived by those skilled in the art based on the embodiments of the present invention through modifications or adjustments are within the protection scope of the present invention.

[0036] An automatic drilling and riveting adhesive injection tool, comprising a base plate 1, a fixing device 2, a support arm drive 3, an adhesive injection mechanism support arm 4, a piston drive 5, an adhesive injection piston 6, an adhesive tank shell 7, an adhesive tank 8, and a PU hose 9, as shown below. Figure 2 As shown.

[0037] The base plate 1 is a rectangular plate structure with multiple cylindrical pins along its longitudinal axis for positioning the piston drive 5 and the glue tank outer shell 7. The base plate 1 also has multiple bolt holes for fixing the piston drive 5, the glue tank outer shell 7, and the fixing device 2. Figure 3 As shown.

[0038] The main body of the fixing device 2 is a rigid plate with assembly holes, which is fixedly connected to the base plate 1. It is used to fix the entire automatic drilling and riveting glue injection tool to the working head of the automatic drilling and riveting machine. The structure can be adjusted according to the shape of the equipment.

[0039] like Figures 4 to 6As shown, the outrigger drive 3 includes a cylinder 31, a drive housing 32, a positioning nut 33, a joint bearing 34, a lever 35, a bolt 36, a drive housing cover plate 37, an adjusting washer 38, and a stop 39. The drive housing 32 and the drive housing cover plate 37 are fixedly connected to form a housing with openings at both ends. The drive housing 32 is fixedly connected to the bottom of the fixing device 2. One end of the drive housing cover plate 37 and the drive housing 32 opposite to the drive housing cover plate 37 is symmetrically provided with strip-shaped slots arranged along the length direction, and the other end is symmetrically provided with bolt holes. A stop 39 is also fixed to the end of the cylinder. The cylinder 31 is fixed to one side of the outer wall of the drive housing 32. The end of its output shaft with the strip-shaped slot extends out, and the end of the output shaft is fixed with a spherical bearing 34 by a positioning nut 33. The lever 35 is located inside the drive housing 32. One end of the lever 35 is fixed with a bolt 36. One end of the bolt 36 passes through the strip-shaped slot on the drive housing 32 and is fixed to the spherical bearing 34. The other end is engaged with the strip-shaped slot on the other side of the drive housing 32. The other end of the lever 35 is provided with a long strip-shaped slot. A bolt 36 passes through the elongated through hole and its two ends are fixed in the bolt holes on the drive housing 32. An adjusting washer 38 is placed between the bolt 36 and the two bolt holes. The bottom of the end of the lever 35 with the elongated through hole has a screw hole and a protruding stepped surface, and the screw hole is closer to the end. The cylinder 31 drives the spherical bearing 34 to push the lever 35 to reciprocate along the strip-shaped slot on the drive housing 32 and the elongated through hole on the lever 35. When the lever 35 retracts into the drive housing 32, its stepped surface cooperates with the stop 39 to prevent the two bolts 36 from contacting the elongated through hole on the lever 35 or the end hole wall of the strip-shaped slot on the drive housing 32, thus playing a protective role. The screw hole on the lever 35 cooperates with the screw 46 on the glue injection mechanism support arm 4, driving the glue injection mechanism support arm 4 to move back and forth, realizing the switching between the glue injection station and the glue injection waiting station.

[0040] like Figures 7 to 9As shown, the glue injection mechanism support arm 4 includes a glue injection connector 41, a hose guide rail 42, an adapter 43, a guide arm 44, a hose fixing mechanism 45, and a connector 47. The connector 47 has a screw 46 at its upper end, which is fixedly connected to the screw hole on the lever 35 in the support arm drive 3. One end of the guide arm 44 is fixedly connected to the end of the connector 47, and the other end is fixedly connected to one end of the hose guide rail 42, forming an L-shaped glue injection mechanism support arm 4. The hose guide rail 42 has a guide groove along its length, and its connection end with the guide arm 44 has a through hole communicating with the guide groove for the PU hose 9 to pass through. The other end has... The cylindrical groove is used to clamp the glue injection connector 41, facilitating its disassembly and replacement. The glue injection connector 41 has an L-shaped through hole, one end of which opens onto the side wall and is threaded to the adapter 43. The other end of the through hole opens onto the lower end of the glue injection connector 41 and is threaded to the glue injection nozzle. The glue injection connector 41 is clamped in the cylindrical groove of the hose guide rail 42. The adapter 43 extends into the guide groove of the hose guide rail 42. One end of the PU hose 9 passes through the through hole at the end of the hose guide rail 42 into the guide groove and is then connected to the adapter 43. The hose fixing mechanism 45 is fixed to the side of the guide arm 44 to guide and fix the PU hose 9, preventing interference.

[0041] The piston drive 5 is a linear motor, which is fixed on the upper part of the base plate 1, and a rod-shaped glue injection piston 6 is fixed at the end of its output shaft.

[0042] like Figure 14 As shown, the outer shell 7 of the glue bucket includes a fixing frame 71, a baffle 72, and a handle 73. The fixing frame 71 is fixedly connected to the lower part of the base plate 1, and the baffle 72 is detachably fixed to the fixing frame 71. The two together form a barrel-shaped inner cavity for clamping and fixing the glue bucket 8. The baffle 72 is provided with a handle 73 for easy operation.

[0043] like Figure 15 As shown, the glue bucket 8 includes a glue bucket piston 81, a glue storage bucket 82, and a hose connector 83. The top of the glue storage bucket 82 is provided with a boss that abuts against the upper end face of the fixing frame 71 and the baffle 72. The glue bucket piston 81 slides in cooperation with the inner wall of the glue storage bucket 82. The hose connector 83 at the bottom of the glue storage bucket 82 is connected to the other end of the PU hose 9. The piston drive 5 drives the glue injection piston 6 to push the glue bucket piston 81 to move, squeezing the sealant out of the glue storage bucket 82. The amount of sealant injected is precisely controlled by the piston drive 5.

[0044] The dispensing nozzle is made of wear-resistant plastic and has various dispensing outlet specifications, such as... Figures 10 to 13 As shown, this is to meet the glue application needs of different situations, and can be replaced directly after use.

[0045] The automatic drilling and riveting adhesive injection tool is used in the following way: the piston drive 5 drives the adhesive injection piston 6 to squeeze the sealant out of the adhesive can 8, and at the same time the support arm drive 3 drives the adhesive injection mechanism support arm 4 to inject the sealant into the fastener hole.

[0046] The above-described embodiments are merely illustrative of the implementation methods of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. An automatic drilling, riveting, and adhesive injection tool, characterized in that, The automatic drilling and riveting glue injection tool includes a base plate (1), a fixing device (2), a support arm drive (3), a glue injection mechanism support arm (4), a piston drive (5), a glue injection piston (6), a glue bucket shell (7), a glue bucket (8), and a PU hose (9). The base plate (1) is fixedly connected to a fixing device (2), a piston drive (5) and a glue bucket shell (7). The fixing device (2) is used to install the entire automatic drilling and riveting glue injection tool onto the automatic drilling and riveting work head. The glue bucket shell (7) is detachably clamped inside the glue bucket (8). The bottom of the glue bucket (8) is connected to a PU hose (9). The piston drive (5) has a glue injection piston (6) fixed at the output shaft end. The glue injection piston (6) pushes the glue liquid in the glue bucket (8) to flow out along the PU hose (9). The support arm drive (3) is a telescopic lever structure. The end of the lever is fixedly connected to a glue injection mechanism support arm (4). The end of the glue injection mechanism support arm (4) is provided with a glue outlet connected to the PU hose (9). The lever telescopic control the glue injection mechanism support arm (4) to move to the glue injection position to complete the glue injection. The base plate (1) is used to fix and connect the piston drive (5), the rubber barrel shell (7) and the fixing device (2); The main body of the fixing device (2) is a rigid plate with assembly holes, which is fixedly connected to the base plate (1) and is used to fix the entire automatic drilling and riveting glue injection tool to the automatic drilling and riveting working head. The outrigger drive (3) includes a cylinder (31), a drive housing (32), a positioning nut (33), a joint bearing (34), a lever (35), a bolt (36), and a drive housing cover plate (37). The drive housing (32) and the drive housing cover plate (37) are fixedly connected to form a housing with open ends. The drive housing (32) is fixedly connected to the bottom of the fixing device (2). On the drive housing cover plate (37) and the drive housing (32), one end of the wall opposite to the drive housing cover plate (37) is symmetrically provided with strip-shaped slots arranged along the length direction, and the other end is symmetrically provided with bolt holes. The cylinder (31) is fixed on one side of the outer wall of the drive housing (32). The output shaft extends out from one end with a slotted hole, and the end of the output shaft is fixed with a spherical bearing (34) by a positioning nut (33); the lever (35) is located inside the drive housing (32), and one end of it is fixed with a bolt (36). One end of the bolt (36) passes through the slotted hole on the drive housing (32) and is fixed to the spherical bearing (34), and the other end is engaged with the slotted hole on the other side of the drive housing (32). The other end of the lever (35) has a long through hole, and another bolt (36) passes through the long through hole and its two ends are fixed in the bolt holes on the drive housing (32). The bottom of the end of the lever (35) with the long through hole has a screw hole. The glue injection mechanism support arm (4) includes a glue injection connector (41), a hose guide rail (42), an adapter (43), a guide arm (44), and a connector (47). The upper end of the connector (47) is provided with a screw (46), which is fixedly connected to the screw hole on the lever (35) in the support arm drive (3). One end of the guide arm (44) is fixedly connected to the end of the connector (47), and the other end is fixedly connected to one end of the hose guide rail (42), forming an L-shaped glue injection mechanism support arm (4). The hose guide rail (42) has a guide groove along its length, and its connection end with the guide arm (44) has a groove that... The guide groove has a through hole for the PU hose (9) to pass through, and the other end has a cylindrical groove for clamping the glue injection connector (41); the glue injection connector (41) has an L-shaped through hole inside, one end of the through hole opens to the side wall and is threaded to the adapter (43), and the other end of the through hole opens to the lower end of the glue injection connector (41) and is threaded to the glue injection nozzle. The glue injection connector (41) is clamped in the cylindrical groove of the hose guide rail (42), and the adapter (43) extends into the guide groove of the hose guide rail (42). One end of the PU hose (9) passes through the through hole at the end of the hose guide rail (42) into the guide groove and is connected to the adapter (43). The piston drive (5) is a linear motor, which is fixed on the upper part of the base plate (1), and a rod-shaped injection piston (6) is fixed at the end of its output shaft. The outer shell (7) of the glue bucket includes a fixing frame (71) and a baffle (72); the fixing frame (71) is fixedly connected to the lower part of the base plate (1), and the baffle (72) is detachably fixed on the fixing frame (71). The two together form a barrel-shaped inner cavity for clamping and fixing the glue bucket (8). The glue bucket (8) includes a glue bucket piston (81), a glue storage bucket (82), and a hose connector (83). The top of the glue storage bucket (82) is provided with a boss that abuts against the upper end face of the fixing frame (71) and the baffle (72). The glue bucket piston (81) slides with the inner wall of the glue storage bucket (82). The hose connector (83) at the bottom of the glue storage bucket (82) is connected to the other end of the PU hose (9). The piston drive (5) drives the glue injection piston (6) to push the glue bucket piston (81) to move, squeezing the sealant out of the glue storage bucket (82). The amount of glue injected is precisely controlled by the piston drive (5).

2. The automatic drilling and riveting adhesive injection tool according to claim 1, characterized in that, The fixing device (2) has an adjusted structure according to the shape of the equipment.

3. The automatic drilling, riveting, and adhesive injection tool according to claim 1, characterized in that, The drive housing (32) has a bolt hole at one end, and a stop (39) is fixed thereon. A protruding stepped surface is made on the side of the bottom screw hole of the lever (35) away from the end of the lever (35). When the lever (35) retracts into the drive housing (32), the stepped surface and the stop (39) cooperate for structural protection.

4. The automatic drilling, riveting, and adhesive injection tool according to claim 1, characterized in that, An adjusting washer (38) is placed between the bolt (36) and the two bolt holes on the drive housing (32).

5. An automatic drilling, riveting, and adhesive injection tool according to claim 1, characterized in that, The guide arm (44) is fixed with a hose fixing mechanism (45) on its side, which is used to guide and fix the PU hose (9) to avoid interference.

6. An automatic drilling, riveting, and adhesive injection tool according to claim 1, characterized in that, The dispensing nozzle is made of wear-resistant plastic and has various specifications of dispensing outlets.

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