A production process and auxiliary tooling for aircraft engine tail nozzle

Abstract

The present invention belongs to the technical field of tail nozzle processing, and specifically is a production process and auxiliary tooling for tail nozzles of aircraft engines; it comprises a base, a feeding conveyor belt and a discharging conveyor belt, the base is provided with a turntable, the top of the turntable is evenly provided with a plurality of grinding mechanisms and clamping mechanisms, the feeding conveyor belt and the discharging conveyor belt are provided with workpieces, the top of the workpiece is toothed, the clamping mechanism can clamp the workpiece on the feeding conveyor belt to the grinding mechanism, and then transfer it to the discharging conveyor belt after grinding, and the grinding mechanism can polish and grind the workpiece; the present invention completes the automated flow operation of loading, clamping, grinding and unloading the workpiece through the cooperation among the feeding conveyor belt, the clamping mechanism, the grinding mechanism and the discharging conveyor belt, realizes the grinding treatment of the toothed area of ​​the workpiece, reduces the time of manual grinding operation of the staff, reduces the work intensity, and improves the work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of tail nozzle processing, in particular to a production process and auxiliary tooling for the tail nozzle of an aero-engine. Background Art

[0002] The tail nozzle of an aircraft engine is an important part of the aircraft engine. Its main function is to accelerate the expansion of the gas that still has a certain amount of energy flowing out of the turbine and discharge it from the engine at a higher speed, thereby generating thrust. The tail nozzle is generally located after the low-pressure turbine of the aircraft engine. The airflow flows into the nozzle through the exhaust cone and the rear support plate of the turbine, and finally flows out from the nozzle; there are various types, including convergent type, convergent divergent type, etc.

[0003] In the prior art, the tail nozzle design of aircraft engines often involves complex and varied geometric shapes. The differences in these shapes are mainly reflected in the structural characteristics of their various parts. For the relatively flat surface areas in the tail nozzle, they can be directly processed by efficient automated polishing equipment, which can significantly reduce manual intervention, thereby ensuring the processing quality while reducing the physical burden of operators and improving the production efficiency of this link. However, for those with uneven surfaces, especially the serrated parts, it is difficult to automate them through standard large-scale polishing equipment, and they can only rely on manually operated small and flexible grinding equipment to complete the grinding task through manual work. This not only increases the work intensity of the staff and reduces work efficiency, but also makes it difficult for the staff to ensure accuracy after long-term manual work, which will affect the performance of the tail nozzle.

[0004] To this end, the present invention provides an aircraft engine tail nozzle production process and auxiliary tooling. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes a production process and auxiliary tooling for an aircraft engine tail nozzle.

[0006] The technical solution applicable to the present invention for solving its technical problem is: the auxiliary tooling for the production of tail nozzles of aircraft engines described in the present invention comprises a base, a feeding conveyor belt and a discharging conveyor belt, a turntable is provided on the base, and workpieces are provided on the feeding conveyor belt and the discharging conveyor belt, the top of the workpiece is toothed, and a plurality of groups of grinding mechanisms and clamping mechanisms are evenly provided on the top of the turntable, the clamping mechanism can clamp the workpiece on the feeding conveyor belt to the grinding mechanism for grinding and then transfer it to the discharging conveyor belt, and the grinding mechanism can polish and grind the workpiece;

[0007] The grinding mechanism includes a pillar, a cylinder 1, a polishing unit and a guide ring. A plurality of pillars are evenly fixed to the top of the turntable. A cylinder 1 is fixedly installed on the side wall of the pillar. An L-shaped connecting plate is fixed to the output end of the cylinder 1. The L-shaped connecting plate is slidably connected to the side wall of the pillar. A bracket is fixed to the side of the L-shaped connecting plate away from the cylinder 1. A polishing unit is provided on the bracket. Guide rings are fixed to the bottom ends of both sides of the bracket. The polishing unit is adapted to the guide rings.

[0008] Preferably, a guide groove is provided on the inner arc-shaped wall of the guide ring, and the guide groove is tooth-shaped and corresponds to the top of the workpiece.

[0009] Preferably, the polishing unit comprises a second motor, a rotating plate, a first fixed sleeve and a polishing wheel, the second motor is fixedly mounted on the top of the bracket, the output end of the second motor extends to the bottom of the bracket and is fixedly connected to the rotating plate, a plurality of groups of arms are evenly fixedly connected to the outer arc-shaped wall of the rotating plate, the end of the first arm away from the rotating plate is fixedly connected to a first fixed sleeve, a T-bar is slidably connected in the inner cavity of the first fixed sleeve, a spring is fixedly connected between the top of the first T-bar and the top of the inner wall of the first fixed sleeve, the end of the first T-bar away from the spring extends to the bottom of the first fixed sleeve and is fixedly connected to a fixed frame, a polishing wheel is rotatably connected to the first fixed frame, a third motor is fixedly mounted on the side of the first fixed frame away from the guide ring, the output end of the third motor is fixedly connected to the polishing wheel, an L-shaped frame is fixedly connected to the side of the first fixed frame close to the guide ring, a connecting rod is fixedly connected to the side of the L-shaped frame close to the guide ring, a guide wheel is fixedly connected to the guide groove at one end of the connecting rod away from the L-shaped frame.

[0010] Preferably, the clamping mechanism includes a horizontal guide rail, a movable seat, and a drag chain assembly, the top of the pillar is fixedly connected to the horizontal guide rail, the movable seat is slidably connected to the horizontal guide rail, a drag chain assembly is arranged between the movable seat and the horizontal guide rail, the movable seat can move horizontally through the drag chain assembly, a cross beam is arranged below the horizontal guide rail, the cross beam is fixedly connected to the movable seat, one side of the cross beam is rotatably connected to a two-way threaded rod, a motor five is fixedly installed on the side of the cross beam away from the two-way threaded rod, the output end of the motor five is fixedly connected to a gear one, the gear one is meshingly connected to the gear two, the gear two is fixedly connected to the end of the two-way threaded rod, the two-way threaded rod is symmetrically threaded with two screw sleeves, the screw sleeves are slidably connected to the cross beam, and a clamping manipulator is arranged below the screw sleeve.

[0011] Preferably, the clamping robot includes a vertical guide rail, a second cylinder, a vertical plate and an arc-shaped clamping plate, the bottoms of the two screw sleeves are fixedly connected to the vertical guide rails, the two vertical guide rails are slidably connected to sliders, the opposite sides of the two sliders are fixedly connected to the vertical plates, the opposite sides of the two vertical plates are fixedly connected to the arc-shaped clamping plates, and the two arc-shaped clamping plates are adapted to the outer wall of the workpiece.

[0012] Preferably, a motor 1 is fixedly installed in the inner cavity of the base, the output end of the motor 1 is fixedly connected to the bottom of the turntable, and the top of the turntable is fixedly connected with workstations with the same number as the pillars, the workstations are adapted to the workpiece, and the workstations are made of rubber.

[0013] Preferably, a plurality of groups of support arms 2 are evenly fixedly connected to the outer arc wall of the rotating plate, the number of the support arms 2 is the same as the number of the support arms 1 and are staggered, the end of the support arm 1 away from the rotating plate is fixedly connected to a fixed sleeve 2, a T-shaped rod 2 is slidably connected in the inner cavity of the fixed sleeve 2, a spring 2 is fixedly connected between the top of the T-shaped rod 2 and the top of the inner wall of the fixed sleeve 2, the end of the T-shaped rod 2 away from the spring 2 extends to the bottom of the fixed sleeve 2 and is fixedly connected to a fixed frame 2, a rotating frame is provided on the fixed frame 2, a polishing part is provided on the rotating frame, rotating shafts are fixedly connected on both sides of the rotating frame, the rotating shaft is rotatably connected to the fixed frame 2, a guide block is fixedly connected to the rotating shaft close to the guide ring side, and the guide block is slidably connected to the guide groove.

[0014] Preferably, the polishing part includes a mounting frame, a polishing belt and a motor four. The mounting frame is fixedly connected to the bottom of the rotating frame. The mounting frame is triangular in shape, and three transmission rollers are rotatably connected to the mounting frame. A polishing belt is provided on the mounting frame, and the polishing belt is transmitted through three transmission rollers. A motor four is fixedly installed on the outer wall of the mounting frame, and the output end of the motor four is fixedly connected to one of the transmission rollers.

[0015] Preferably, an arc groove is provided on the inner wall of the fixing frame, an arc block is slidably connected in the arc groove, the arc block is fixedly connected to the rotating shaft, springs three are fixedly connected on both sides of the arc block, and one end of the spring three away from the arc block is fixedly connected to the inner wall of the arc groove.

[0016] A production process for an aircraft engine tail nozzle, which is applicable to the above-mentioned aircraft engine tail nozzle production auxiliary tooling, and comprises the following steps:

[0017] S1: The staff places the workpieces with their teeth facing upward and at equal intervals on the feed conveyor belt, and transfers the workpieces to the turntable through the feed conveyor belt;

[0018] S2: When the turntable drives the clamping mechanism to rotate to the feed conveyor belt, the feed conveyor belt, the discharge conveyor belt and the turntable are all stopped, and the clamping mechanism clamps the workpiece to the corresponding grinding mechanism. After that, the feed conveyor belt, the discharge conveyor belt and the turntable continue to work, and at the same time, the polishing unit on the grinding mechanism starts to polish the workpiece;

[0019] S3: When the turntable drives the workpiece that has been polished to rotate to the discharge conveyor belt, the feed conveyor belt, the discharge conveyor belt and the turntable are all stopped, the polishing unit stops working, and the clamping mechanism transfers the workpiece that has been polished to the discharge conveyor belt, and the discharge conveyor belt unloads the workpiece.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The aircraft engine tail nozzle production process and auxiliary tooling described in the present invention complete the automated flow operation of loading, clamping, grinding and unloading workpieces through the cooperation between the feeding conveyor belt, the clamping mechanism, the grinding mechanism and the discharging conveyor belt, realizes the grinding process of the toothed area of ​​the workpiece, reduces the time of manual grinding operations of the staff, reduces the work intensity and improves the work efficiency.

[0022] 2. The aircraft engine tail nozzle production process and auxiliary tooling described in the present invention can simultaneously grind the plane and edge lines of the toothed area of ​​the workpiece through the provided polishing wheel and polishing belt, so that the staff only needs to inspect and finish the polished workpiece, effectively avoiding the staff's long-term manual grinding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a stereogram of the present invention as a whole;

[0025] Figure 2 is a schematic diagram of the grinding mechanism and the clamping mechanism of the present invention;

[0026] Figure 3 It is a partial schematic diagram of the guide ring of the present invention;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0028] Figure 5 It is a partial schematic diagram of the rotating plate of the present invention;

[0029] Figure 6 It is an exploded view of one part of the fixed sleeve of the present invention;

[0030] Figure 7It is an exploded view of the second location of the fixed sleeve of the present invention;

[0031] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;

[0032] Fig. 9 It is an exploded view of the turntable of the present invention.

[0033] In the figure: 1, base; 2, turntable; 201, motor 1; 202, workstation; 3, grinding mechanism; 301, pillar; 302, cylinder 1; 303, L-shaped connecting plate; 304, bracket; 305, guide ring; 306, guide groove; 307, motor 2; 308, rotating plate; 309, support arm 1; 310, fixed sleeve 1; 311, spring 1; 312, T-bar 1; 313, fixed frame 1; 314, polishing wheel; 315, motor 3; 316, L-shaped frame; 317, connecting rod; 318, guide wheel; 319, support arm 2; 320, fixed sleeve 2; 321, spring 2; 322, T-bar 2; 3 23. Fixed frame two; 324. Rotating frame; 325. Rotating shaft; 326. Guide block; 327. Arc groove; 328. Arc block; 329. Spring three; 330. Mounting frame; 331. Polishing belt; 332. Motor four; 4. Clamping mechanism; 401. Horizontal guide rail; 402. Moving seat; 403. Drag chain assembly; 404. Crossbeam; 405. Bidirectional threaded rod; 406. Motor five; 407. Gear one; 408. Gear two; 409. Screw sleeve; 410. Vertical guide rail; 411. Cylinder two; 412. Sliding block; 413. Vertical plate; 414. Arc clamp; 5. Feed conveyor belt; 6. Discharge conveyor belt; 7. Workpiece. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figure 1-Figure 9 As shown, an auxiliary tooling for the production of an aircraft engine tail nozzle according to an embodiment of the present invention comprises a base 1, a feed conveyor belt 5 and a discharge conveyor belt 6, a turntable 2 is provided on the base 1, a workpiece 7 is provided on the feed conveyor belt 5 and the discharge conveyor belt 6, the top of the workpiece 7 is toothed, a plurality of groups of grinding mechanisms 3 and clamping mechanisms 4 are evenly provided on the top of the turntable 2, the clamping mechanism 4 can clamp the workpiece 7 on the feed conveyor belt 5 to the grinding mechanism 3 for grinding and then transfer it to the discharge conveyor belt 6, and the grinding mechanism 3 can polish and grind the workpiece 7;

[0036] The grinding mechanism 3 includes a pillar 301, a cylinder 1 302, a polishing unit and a guide ring 305. A plurality of pillars 301 are evenly fixed on the top of the turntable 2. A cylinder 1 302 is fixedly installed on the side wall of the pillar 301. An L-shaped connecting plate 303 is fixedly connected to the output end of the cylinder 1 302. The L-shaped connecting plate 303 is slidably connected to the side wall of the pillar 301. A bracket 304 is fixedly connected to the side of the L-shaped connecting plate 303 away from the cylinder 1 302. The bracket 304 is provided with a polishing unit. The bottom ends of both sides of the bracket 304 are fixedly connected with guide rings 305. The polishing unit is adapted to the guide rings 305.

[0037] The workpiece 7 is then polished and rubbed by the polishing unit 3, and the polishing unit 305 is used to polish the workpiece 7. It has become an automated flow operation for loading, clamping, grinding and unloading the workpiece 7, and achieved rough grinding of the toothed area of ​​the workpiece 7, effectively solving the problem in the prior art that the tail nozzle design of the aircraft engine often involves complex and changeable geometric shapes, and the differences in these shapes are mainly reflected in the structural characteristics of its various parts. For the relatively flat surface area in the tail nozzle, it can be directly processed by efficient automated polishing equipment, which can significantly reduce manual intervention, thereby reducing the physical burden of operators while ensuring the processing quality and improving the production efficiency of this link. However, for those uneven surfaces, especially the toothed parts, it is difficult to automate them through standard large-scale polishing equipment, and they can only rely on manually operated small and flexible grinding equipment to complete the grinding task through manual work, which not only increases the work intensity of the staff and reduces the work efficiency, but also makes it difficult for the staff to ensure accuracy after long-term manual work, which will affect the performance of the tail nozzle.

[0038] like Figure 2-Figure 6 As shown, a guide groove 306 is provided on the inner arc wall of the guide ring 305, and the guide groove 306 is tooth-shaped and corresponds to the top of the workpiece 7;

[0039] The polishing unit includes a motor 2 307, a rotating plate 308, a fixed sleeve 1 310 and a polishing wheel 314. The motor 2 307 is fixedly installed on the top of the bracket 304. The output end of the motor 2 307 extends to the bottom of the bracket 304 and is fixedly connected to the rotating plate 308. A plurality of groups of support arms 1 309 are evenly fixedly connected to the outer arc wall of the rotating plate 308. The end of the support arm 1 309 away from the rotating plate 308 is fixedly connected to the fixed sleeve 1 310. A T-shaped rod 1 312 is slidably connected in the inner cavity of the fixed sleeve 1 310. A spring 1 311 is fixedly connected between the top of the T-shaped rod 1 312 and the top of the inner wall of the fixed sleeve 1 310. The T-shaped rod 1 312 is fixedly connected to the inner cavity of the fixed sleeve 1 310. One end of the fixing frame 111 away from the spring 111 extends to the bottom of the fixing sleeve 110 and is fixedly connected to the fixing frame 113, and a polishing wheel 314 is rotatably connected to the fixing frame 113. A motor 315 is fixedly installed on the side of the fixing frame 113 away from the guide ring 305, and the output end of the motor 315 is fixedly connected to the polishing wheel 314. An L-shaped frame 316 is fixedly connected to the side of the fixing frame 113 close to the guide ring 305, and a connecting rod 317 is fixedly connected to the side of the L-shaped frame 316 close to the guide ring 305. A guide wheel 318 is fixedly connected to the end of the connecting rod 317 away from the L-shaped frame 316, and the guide wheel 318 is slidably connected to the guide groove 306.

[0040] In this embodiment, when the clamping mechanism 4 clamps the workpiece 7 on the feeding conveyor belt 5 onto the turntable 2, the cylinder 1 302 drives the L-shaped connecting plate 303 to descend, so that the guide ring 305 and the polishing unit move to the toothed part of the workpiece 7. At this time, the motor 2 307 is started, driving the rotating plate 308 to rotate, so that the support arm 1 309 drives the fixed sleeve 1 310 to rotate, and then the polishing wheel 314 and the guide wheel 318 on the fixed frame 1 313 rotate together. In this process, the guide wheel 318 slides along the guide groove 306 on the guide ring 305. Because the guide groove 306 corresponds to the toothed area of ​​the workpiece 7, the motor 315 can drive the polishing wheel 314 to grind the top plane of the toothed area of ​​the workpiece 7. When the guide wheel 31 When 8 slides to the trough in the guide groove 306, the polishing wheel 314 moves to the trough of the toothed area of ​​the workpiece 7. At this time, the spring 1 311 is in a natural state. When the guide wheel 318 slides from the trough of the guide groove 306 to the crest, the polishing wheel 314 moves from the trough to the crest of the toothed area of ​​the workpiece 7. During this process, the polishing wheel 314 drives the T-bar 1 312 to compress the spring 1 311 until the guide wheel 318 moves to the trough again. The polishing wheel 314 continues to move and polish while close to the workpiece 7 under the elastic force of the spring 1 311. Through this structure, the rough polishing of the workpiece 7 is achieved, and the staff only needs to check and fine-process it later, which effectively avoids the staff's long-term manual polishing work.

[0041] like Figure 2-Figure 3As shown, the clamping mechanism 4 includes a horizontal guide rail 401, a movable seat 402, and a drag chain assembly 403. The top of the pillar 301 is fixedly connected to the horizontal guide rail 401, and the movable seat 402 is slidably connected to the horizontal guide rail 401. The drag chain assembly 403 is arranged between the movable seat 402 and the horizontal guide rail 401. The movable seat 402 can move horizontally through the drag chain assembly 403. A crossbeam 404 is arranged below the horizontal guide rail 401. The crossbeam 404 is fixedly connected to the movable seat 402. One side of the crossbeam 404 A bidirectional threaded rod 405 is rotatably connected to the side, a motor 5 406 is fixedly installed on one side of the cross beam 404 away from the bidirectional threaded rod 405, a gear 1 407 is fixedly connected to the output end of the motor 5 406, the gear 1 407 is meshed and connected with the gear 2 408, the gear 2 408 is fixedly connected to the end of the bidirectional threaded rod 405, two screw sleeves 409 are symmetrically threadedly connected on the bidirectional threaded rod 405, the screw sleeves 409 are slidably connected to the cross beam 404, and a clamping manipulator is arranged below the screw sleeves 409;

[0042] When the turntable 2 drives the clamping mechanism 4 to rotate to the feeding conveyor belt 5, the moving seat 402 is driven to slide on the horizontal guide rail 401 by the drag chain assembly 403 until the clamping manipulator moves to the top of the workpiece 7. At this time, the motor 5 406 is started to drive the gear 1 407 to rotate, so that the gear 2 408 drives the bidirectional threaded rod 405 to rotate, and then the two screw sleeves 409 drive the two clamping manipulators to slide relative to each other, completing the clamping and fixing of the workpiece 7, and then the moving seat 402 is driven to reset by the drag chain assembly 403, so that the polishing mechanism 3 can polish the workpiece 7. When the turntable 2 drives the polished workpiece 7 to rotate to the discharging conveyor belt 6, the moving seat 402 is driven to slide again by the drag chain assembly 403, so that the clamping manipulator drives the workpiece 7 to move to the discharging conveyor belt 6, the clamping manipulator unloads, and the workpiece 7 is transferred by the discharging conveyor belt 6. The automatic operation of loading and unloading the workpiece 7 is completed through this structure, and the polishing mechanism 3 is cooperated to realize the flow operation, which greatly improves the work efficiency.

[0043] like Figure 2-Figure 3 As shown, the clamping manipulator includes a vertical guide rail 410, a cylinder 411, a vertical plate 413 and an arc-shaped clamping plate 414. The bottoms of the two screw sleeves 409 are fixedly connected with the vertical guide rails 410, and the two vertical guide rails 410 are slidably connected with sliders 412. The opposite sides of the two sliders 412 are fixedly connected with the vertical plates 413, and the opposite sides of the two vertical plates 413 are fixedly connected with the arc-shaped clamping plates 414. The two arc-shaped clamping plates 414 are adapted to the outer wall of the workpiece 7.

[0044] In this embodiment, during the process of loading and unloading the clamping robot, cylinder 2 411 will drive the slider 412 to move on the vertical guide rail 410, so that when the two vertical plates 413 cooperate with the arc-shaped clamping plate 414 to clamp the workpiece 7 and move it, it can avoid the bottom of the workpiece 7 from rubbing against the turntable 2, the feed conveyor belt 5 and the discharge conveyor belt 6 to cause damage.

[0045] like Fig. 9 As shown, a motor 201 is fixedly installed in the inner cavity of the base 1, and the output end of the motor 201 is fixedly connected to the bottom of the turntable 2. The top of the turntable 2 is fixedly connected with workstations 202 having the same number as the pillars 301. The workstations 202 are adapted to the workpiece 7, and the workstations 202 are made of rubber.

[0046] In this embodiment, by setting a rubber workstation seat 202 on the top of the turntable 2, the stability of the workpiece 7 during the grinding process can be enhanced, and the vibration generated by the polishing wheel 314 during operation can be avoided to cause the workpiece 7 to shake, affect the polishing quality, and further cause adverse effects on the overall performance of the workpiece 7.

[0047] like Figure 2-Figure 8 As shown, multiple groups of second support arms 319 are evenly fixed on the outer arc-shaped wall of the rotating plate 308. The number of the second support arms 319 is the same as the number of the first support arms 309, and they are staggered. The end of the first support arm 309 away from the rotating plate 308 is fixedly connected to the second fixed sleeve 320. The inner cavity of the second fixed sleeve 320 is slidably connected with the second T-shaped rod 322. The top of the second T-shaped rod 322 and the top of the inner wall of the second fixed sleeve 320 are fixedly connected with the second spring 321. The second T-shaped rod 322 is fixedly connected to the top of the inner wall of the second fixed sleeve 320. One end of 22 away from the second spring 321 extends to the bottom of the second fixed sleeve 320 and is fixedly connected to the second fixed frame 323, the second fixed frame 323 is provided with a rotating frame 324, the rotating frame 324 is provided with a polishing piece, both sides of the rotating frame 324 are fixedly connected with a rotating shaft 325, the rotating shaft 325 is rotatably connected to the second fixed frame 323, and a guide block 326 is fixedly connected to the rotating shaft 325 on the side close to the guide ring 305, and the guide block 326 is slidably connected to the guide groove 306;

[0048] When the polishing wheel 314 is grinding the top plane of the toothed area of ​​the workpiece 7, the rotating plate 308 drives the fixed sleeve 2 320 on the support arm 2 319 to rotate, so that the fixed frame 2 323 drives the polishing piece on the rotating frame 324 to rotate together. Because the rotating frame 324 is rotatably connected to the fixed frame 2 323 through the rotating shaft 325, and the guide block 326 set at one end of one of the rotating shafts 325 slides along the guide groove 306, when the guide block 326 slides horizontally along the troughs and peaks in the guide groove 306, the rotating frame 324 carries the polishing piece to perform rounded polishing on both sides of the troughs and peaks of the toothed area of ​​the workpiece 7. When the guide block 326 slides along the inclined surface in the guide groove 306, the rotating frame 324 drives the polishing piece to rotate and correspondingly performs rounded polishing on both sides of the inclined surface of the toothed area of ​​the workpiece 7. Through this mechanism, the rough polishing of the toothed area of ​​the workpiece 7 is further achieved, reducing the pressure on the staff.

[0049] like Figure 7-Figure 8 As shown, the polishing member includes a mounting frame 330, a polishing belt 331 and a motor 332. The mounting frame 330 is fixedly connected to the bottom of the rotating frame 324. The mounting frame 330 is triangular in shape, and three transmission rollers are rotatably connected to the mounting frame 330. The mounting frame 330 is provided with a polishing belt 331, and the polishing belt 331 is driven by the three transmission rollers. The motor 332 is fixedly installed on the outer wall of the mounting frame 330, and the output end of the motor 332 is fixedly connected to one of the transmission rollers.

[0050] In this embodiment, since the polishing belt 331 is arranged on the triangular mounting frame 330, when the cylinder 1 302 drives the L-shaped connecting plate 303 to descend, the bottom center part of the polishing belt 331 directly contacts the plane of the toothed area of ​​the workpiece 7, and the bottom sides of the polishing belt 331 are lower than the plane of the toothed area of ​​the workpiece 7, so that the polishing belt 331 can not only further process the workpiece 7 after being polished by the polishing wheel 314, but also grind and polish the edge lines of the toothed area of ​​the workpiece 7.

[0051] like Figure 7-Figure 8 As shown, an arc groove 327 is provided on the inner side wall of the fixing frame, an arc block 328 is slidably connected in the arc groove 327, the arc block 328 is fixedly connected to the rotating shaft 325, and springs 329 are fixedly connected to both sides of the arc block 328, and one end of the spring 329 away from the arc block 328 is fixedly connected to the inner wall of the arc groove 327;

[0052] In this embodiment, when the guide block 326 slides from the trough to the crest or from the crest to the trough in the guide groove 306, the rotating frame 324 will deflect with the guide block 326 due to the shape of the guide block 326. At this time, the arc block 328 on the rotating shaft 325 slides along the arc groove 327 and compresses the spring three 329 on one side, and stretches the spring three 329 on the other side until the guide block 326 moves to the trough section or the crest section, and the spring three 329 is reset, and so on. By setting the arc block 328 and the spring three 329, the stability of the rotating shaft 325 reciprocating with the guide block 326 can be enhanced.

[0053] A production process for an aircraft engine tail nozzle, which is applicable to the above-mentioned aircraft engine tail nozzle production auxiliary tooling, and comprises the following steps:

[0054] S1: The staff places the workpiece 7 with the teeth facing upward and at equal intervals on the feed conveyor belt 5, and conveys the workpiece 7 to the turntable 2 through the feed conveyor belt 5;

[0055] S2: When the turntable 2 drives the clamping mechanism 4 to rotate to the feeding conveyor belt 5, the feeding conveyor belt 5, the discharging conveyor belt 6 and the turntable 2 are all stopped, and the clamping mechanism 4 clamps the workpiece 7 to the corresponding grinding mechanism 3. After that, the feeding conveyor belt 5, the discharging conveyor belt 6 and the turntable 2 continue to work, and at the same time, the polishing unit on the grinding mechanism 3 starts to polish the workpiece 7;

[0056] S3: When the turntable 2 drives the workpiece 7 that has been polished to rotate to the discharge conveyor belt 6, the feed conveyor belt 5, the discharge conveyor belt 6 and the turntable 2 are all stopped, the polishing unit stops working, and the clamping mechanism 4 transfers the workpiece 7 that has completed the polishing process to the discharge conveyor belt 6, and the discharge conveyor belt 6 unloads the workpiece 7.

[0057] Working principle: the staff places the workpiece 7 with the teeth facing upward and at equal intervals on the feed conveyor belt 5, and transmits the workpiece 7 to the turntable 2 through the feed conveyor belt 5. At this time, the feed conveyor belt 5 stops driving and the turntable 2 stops rotating, so that the clamping mechanism 4 rotating to the feed conveyor belt 5 clamps the workpiece 7 to the grinding mechanism 3. Thereafter, the feed conveyor belt 5 continues to drive, and the turntable 2 starts to rotate until the next workpiece 7 corresponds to the next clamping mechanism 4. The clamped workpiece 7 is polished and ground by the polishing unit on the grinding mechanism 3 while the turntable 2 rotates. The guide ring 305 provided can make the polishing unit move along the toothed track of the workpiece 7 when grinding the workpiece 7. When the workpiece 7 is driven by the turntable 2 to rotate to the discharge conveyor belt 6, the feed conveyor belt 5, the discharge conveyor belt 6 and the turntable 2 are all stopped, the polishing unit stops working, the clamping mechanism 4 transfers the workpiece 7 that has completed the rough polishing treatment to the discharge conveyor belt 6, and the discharge conveyor belt 6 unloads the workpiece 7. Through the cooperation between the above structures, the automated assembly line operation of loading, clamping, grinding and unloading the workpiece 7 is completed, and the rough grinding treatment of the toothed area of ​​the workpiece 7 is realized. When the clamping mechanism 4 clamps the workpiece 7 on the feed conveyor belt 5 onto the turntable 2, the cylinder 1 302 drives the L-shaped connecting plate 303 to descend, so that the guide ring 305 and the polishing unit move to the toothed part of the workpiece 7. At this time, the motor 2 307 is started, driving the rotating plate 308 to rotate, so that the support arm 1 309 drives the fixed sleeve 1 310 rotates, thereby causing the polishing wheel 314 and the guide wheel 318 on the fixed frame 1 313 to rotate together. During this process, the guide wheel 318 slides along the guide groove 306 on the guide ring 305. Because the guide groove 306 corresponds to the toothed area of ​​the workpiece 7, the motor 315 can drive the polishing wheel 314 to grind the top plane of the toothed area of ​​the workpiece 7. When the guide wheel 318 slides to the valley in the guide groove 306, the polishing wheel 314 moves to the valley of the toothed area of ​​the workpiece 7. At this time, the spring 1 311 is in a natural state. When the guide wheel 318 slides from the valley of the guide groove 306 to the peak, the polishing wheel 314 moves from the valley of the toothed area of ​​the workpiece 7 to the peak. During this process, the polishing wheel 31 4 drives T-bar 1 312 to compress spring 1 311, until the guide wheel 318 moves to the trough again, the polishing wheel 314 continues to move and polish while close to the workpiece 7 under the elastic force of the spring 1 311. Through this structure, the rough polishing of the workpiece 7 is achieved, and the staff only needs to check the fine processing later, which effectively avoids the long-term manual polishing operation of the staff. When the turntable 2 drives the clamping mechanism 4 to rotate to the feed conveyor belt 5, the moving seat 402 is driven to slide on the horizontal guide rail 401 through the drag chain assembly 403 until the clamping manipulator moves to the top of the workpiece 7. At this time, the motor 5 406 is started, driving the gear 1 407 to rotate, so that the gear 2 408 drives the bidirectional threaded rod 405 to rotate.Then, the two screw sleeves 409 drive the two clamping manipulators to slide relative to each other, complete the clamping and fixing of the workpiece 7, and then the drag chain assembly 403 drives the moving seat 402 to reset, so that the grinding mechanism 3 can polish the workpiece 7. When the turntable 2 drives the polished workpiece 7 to rotate to the discharge conveyor belt 6, the drag chain assembly 403 drives the moving seat 402 to slide again, so that the clamping manipulator drives the workpiece 7 to move to the discharge conveyor belt 6, the clamping manipulator unloads, and the workpiece 7 is transferred by the discharge conveyor belt 6. Through this structure, the automatic operation of loading and unloading the workpiece 7 is completed, and the grinding mechanism 3 is cooperated to realize the streamlined operation, which greatly improves the work efficiency. In the process of loading and unloading materials by the clamping robot, the cylinder 2 411 will drive the slider 412 to move on the vertical guide rail 410, so that when the two vertical plates 413 cooperate with the arc clamping plate 414 to clamp the workpiece 7 and move, it can avoid the friction between the bottom of the workpiece 7 and the turntable 2, the feed conveyor belt 5 and the discharge conveyor belt 6 to cause damage. By arranging a rubber workstation seat 202 on the top of the turntable 2, the stability of the workpiece 7 during the grinding process can be enhanced, and the vibration generated by the polishing wheel 314 during operation can be avoided to drive the workpiece 7 to shake, affect the polishing quality, and further cause adverse effects on the overall performance of the workpiece 7. When the polishing wheel 314 is grinding the top plane of the toothed area of ​​the workpiece 7, the turntable 2 The movable plate 308 drives the second fixed sleeve 320 on the second support arm 319 to rotate, so that the second fixed frame 323 drives the polishing piece on the rotating frame 324 to rotate together. Because the rotating frame 324 is rotatably connected with the second fixed frame 323 through the rotating shaft 325, and the guide block 326 set at one end of one of the rotating shafts 325 slides along the guide groove 306, when the guide block 326 slides horizontally along the valleys and peaks in the guide groove 306, the rotating frame 324 carries the polishing piece to perform rounded polishing on both sides of the valleys and peaks of the toothed area of ​​the workpiece 7, and when the guide block 326 slides along the inclined surface in the guide groove 306, the rotating frame 324 drives the polishing piece to rotate accordingly. Correspondingly, the two sides of the inclined surface of the toothed area of ​​the workpiece 7 are rounded and polished. This mechanism further realizes the rough polishing of the toothed area of ​​the workpiece 7, reducing the pressure on the staff. Since the polishing belt 331 is set on the triangular mounting frame 330, when the cylinder 1 302 drives the L-shaped connecting plate 303 to descend, the bottom center part of the polishing belt 331 directly contacts the plane of the toothed area of ​​the workpiece 7, and the two sides of the bottom of the polishing belt 331 are lower than the plane of the toothed area of ​​the workpiece 7, so that the polishing belt 331 can not only further process the workpiece 7 polished by the polishing wheel 314, but also grind and polish the edge line of the toothed area of ​​the workpiece 7.

[0058] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary tooling for the production of an aircraft engine tail nozzle, comprising a base (1), a feed conveyor belt (5) and a discharge conveyor belt (6), wherein a turntable (2) is provided on the base (1), and a workpiece (7) is provided on each of the feed conveyor belt (5) and the discharge conveyor belt (6), wherein the top of the workpiece (7) is toothed, and characterized in that: A plurality of grinding mechanisms (3) and clamping mechanisms (4) are evenly arranged on the top of the turntable (2); the clamping mechanism (4) can clamp the workpiece (7) on the feed conveyor belt (5) to the grinding mechanism (3) for grinding and then transfer to the discharge conveyor belt (6); the grinding mechanism (3) can polish and grind the workpiece (7); The polishing mechanism (3) comprises a support (301), a cylinder one (302), a polishing unit and a guide ring (305); a plurality of supports (301) are evenly fixedly connected to the top of the turntable (2); a cylinder one (302) is fixedly mounted on the side wall of the support (301); an L-shaped connecting plate (303) is fixedly connected to the output end of the cylinder one (302); the L-shaped connecting plate (303) is slidably connected to the side wall of the support (301); a bracket (304) is fixedly connected to the side of the L-shaped connecting plate (303) away from the cylinder one (302); a polishing unit is provided on the bracket (304); guide rings (305) are fixedly connected to the bottom ends of both sides of the bracket (304); and the polishing unit is matched with the guide rings (305); A guide groove (306) is provided on the inner arc-shaped wall of the guide ring (305), the guide groove (306) is tooth-shaped and corresponds to the top of the workpiece (7); The polishing unit comprises a second motor (307), a rotating plate (308), a first fixed sleeve (310) and a polishing wheel (314); the second motor (307) is fixedly mounted on the top of the bracket (304); the output end of the second motor (307) extends to the bottom of the bracket (304) and is fixedly connected to the rotating plate (308); a plurality of groups of first arms (309) are evenly fixedly connected to the outer arc-shaped wall of the rotating plate (308); one end of the first arm (309) away from the rotating plate (308) is fixedly connected to the first fixed sleeve (310); a T-shaped rod (312) is slidably connected to the inner cavity of the first fixed sleeve (310); a spring (311) is fixedly connected between the top end of the first T-shaped rod (312) and the top of the inner wall of the first fixed sleeve (310); the first T-shaped rod (312) is fixedly connected to the top of the inner wall of the first fixed sleeve (310); and the first T-shaped rod (312) is fixedly connected to the top of the inner wall of the first fixed sleeve (310). 2) one end away from the spring one (311) extends to the bottom of the fixed sleeve one (310) and is fixedly connected to a fixed frame one (313), a polishing wheel (314) is rotatably connected to the fixed frame one (313), a motor three (315) is fixedly installed on the side of the fixed frame one (313) away from the guide ring (305), the output end of the motor three (315) is fixedly connected to the polishing wheel (314), an L-shaped frame (316) is fixedly connected to the side of the fixed frame one (313) close to the guide ring (305), a connecting rod (317) is fixedly connected to the side of the L-shaped frame (316) close to the guide ring (305), and a guide wheel (318) is fixedly connected to the end of the connecting rod (317) away from the L-shaped frame (316), and the guide wheel (318) is slidably connected to the guide groove (306); The clamping mechanism (4) comprises a horizontal guide rail (401), a movable seat (402), and a drag chain assembly (403); the top of the pillar (301) is fixedly connected to the horizontal guide rail (401); the movable seat (402) is slidably connected to the horizontal guide rail (401); a drag chain assembly (403) is arranged between the movable seat (402) and the horizontal guide rail (401); the movable seat (402) can move horizontally through the drag chain assembly (403); a crossbeam (404) is arranged below the horizontal guide rail (401); the crossbeam (404) is fixedly connected to the movable seat (402); the crossbeam (404) ) is rotatably connected to one side of the bidirectional threaded rod (405), a motor five (406) is fixedly installed on the side of the cross beam (404) away from the bidirectional threaded rod (405), a gear one (407) is fixedly connected to the output end of the motor five (406), the gear one (407) is meshingly connected to the gear two (408), the gear two (408) is fixedly connected to the end of the bidirectional threaded rod (405), two screw sleeves (409) are symmetrically threadedly connected on the bidirectional threaded rod (405), the screw sleeves (409) are slidably connected to the cross beam (404), and a clamping manipulator is arranged below the screw sleeve (409); The clamping manipulator comprises a vertical guide rail (410), a second cylinder (411), a vertical plate (413) and an arc-shaped clamping plate (414); the bottoms of the two screw sleeves (409) are fixedly connected to the vertical guide rail (410); the two vertical guide rails (410) are slidably connected to sliders (412); the opposite sides of the two sliders (412) are fixedly connected to the vertical plates (413); the opposite sides of the two vertical plates (413) are fixedly connected to the arc-shaped clamping plates (414); the two arc-shaped clamping plates (414) are adapted to the outer wall of the workpiece (7); A motor 1 (201) is fixedly installed in the inner cavity of the base (1); the output end of the motor 1 (201) is fixedly connected to the bottom of the turntable (2); the top of the turntable (2) is fixedly connected to workstation seats (202) of the same number as the pillars (301); the workstation seats (202) are adapted to the workpiece (7), and the workstation seats (202) are made of rubber; A plurality of groups of second supporting arms (319) are evenly fixedly connected to the outer arc-shaped wall of the rotating plate (308), the number of the second supporting arms (319) being the same as the number of the first supporting arms (309) and being arranged in a staggered manner, the first supporting arm (309) being fixedly connected to one end thereof away from the rotating plate (308), the second T-shaped rod (322) being slidably connected to the inner cavity of the second fixed sleeve (320), the second spring (321) being fixedly connected between the top of the second T-shaped rod (322) and the top of the inner wall of the second fixed sleeve (320), the second T-shaped rod (322) being far away from the rotating plate (308), and the second spring (321) being fixedly connected to the inner cavity of the second fixed sleeve (320). One end of the second spring (321) extends to the bottom of the second fixed sleeve (320) and is fixedly connected to the second fixed frame (323); a rotating frame (324) is provided on the second fixed frame (323); a polishing member is provided on the rotating frame (324); rotating shafts (325) are fixedly connected on both sides of the rotating frame (324); the rotating shafts (325) are rotatably connected to the second fixed frame (323); a guide block (326) is fixedly connected to the rotating shaft (325) on the side close to the guide ring (305); and the guide block (326) is slidably connected to the guide groove (306).

2. The auxiliary tooling for production of tail nozzle of an aircraft engine according to claim 1, characterized in that: The polishing member comprises a mounting frame (330), a polishing belt (331) and a fourth motor (332); the mounting frame (330) is fixedly connected to the bottom of the rotating frame (324); the mounting frame (330) is triangular in shape, and three transmission rollers are rotatably connected to the mounting frame (330); the mounting frame (330) is provided with a polishing belt (331), and the polishing belt (331) is driven by the three transmission rollers; a fourth motor (332) is fixedly mounted on the outer wall of the mounting frame (330), and the output end of the fourth motor (332) is fixedly connected to one of the transmission rollers.

3. The auxiliary tooling for production of tail nozzle of an aircraft engine according to claim 2, characterized in that: An arc-shaped groove (327) is provided on the inner side wall of the fixing frame, an arc-shaped block (328) is slidably connected in the arc-shaped groove (327), the arc-shaped block (328) is fixedly connected to the rotating shaft (325), spring three (329) is fixedly connected to both sides of the arc-shaped block (328), and one end of the spring three (329) away from the arc-shaped block (328) is fixedly connected to the inner wall of the arc-shaped groove (327).

4. A production process for an aircraft engine tail nozzle, characterized in that: The production process is applicable to an auxiliary tooling for production of an aircraft engine tail nozzle as described in any one of claims 1 to 3, and the production process comprises the following steps: S1: A worker places the workpiece (7) with its teeth facing upward and at equal intervals on the feed conveyor belt (5), and conveys the workpiece (7) to the turntable (2) via the feed conveyor belt (5); S2: When the turntable (2) drives the clamping mechanism (4) to rotate to the feed conveyor belt (5), the feed conveyor belt (5), the discharge conveyor belt (6) and the turntable (2) are all stopped, and the clamping mechanism (4) clamps the workpiece (7) to the corresponding grinding mechanism (3). Thereafter, the feed conveyor belt (5), the discharge conveyor belt (6) and the turntable (2) continue to work, and at the same time, the polishing unit on the grinding mechanism (3) starts to polish the workpiece (7); S3: When the turntable (2) drives the workpiece (7) that has been polished to rotate to the discharge conveyor belt (6), the feed conveyor belt (5), the discharge conveyor belt (6) and the turntable (2) are all stopped, the polishing unit stops working, and the clamping mechanism (4) transfers the workpiece (7) that has been polished to the discharge conveyor belt (6), and the discharge conveyor belt (6) unloads the workpiece (7).

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