Clamping device for detecting aero-engine cylinder block assembly

Abstract

The utility model discloses an aero-engine cylinder body assembly detection clamping device, and relates to the engine detection clamping technical field, the aero-engine cylinder body assembly detection clamping device comprises a robot arm adapter seat, a bottom plate and a spring connecting seat, the bottom end of the robot arm adapter seat is provided with the bottom plate, and the side wall of the bottom plate is provided with a light source support and a baffle plate; a camera is installed on the side wall of the light source support, a positioning pin used for positioning a cylinder body assembly is installed on the bottom plate, a spring connecting base is installed at the top end of the bottom plate, a damping mechanism used for buffering and pressing is arranged in the spring connecting base, a sliding block is installed at the top end of the bottom plate, a guide rail is arranged in the sliding block, and a light source is installed in the guide rail. A first profiling connecting plate and a second profiling connecting plate are installed on the outer walls of the guide rails correspondingly, after engine parts make contact with the positions of the proximity switch sensors, the proximity switch sensors feed information back to the upper computer, the upper computer can close the double-end synchronous air cylinders, and then the engine cylinder body can be rapidly clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of engine detection and clamping, in particular to a detection and clamping device for an aviation engine cylinder assembly. Background Art

[0002] The cylinder block is where the mixture (jet fuel and air) is burned. It houses the reciprocating pistons. The cylinder block head is equipped with glow plugs to heat the mixture, as well as intake and exhaust valves. Cylinder temperatures are very high during engine operation, so the outer wall of the cylinder block is covered with fins to maximize heat dissipation. The cylinder block is the main body of the engine, connecting the cylinders and crankcase together and serving as the supporting framework for the pistons, crankshaft, and other parts and accessories. The cylinder block operates under extremely harsh conditions. It must withstand the rapid fluctuations in pressure and temperature during combustion, as well as the intense friction of piston movement. Therefore, it must possess the following properties: 1. Sufficient strength and rigidity, minimal deformation to ensure correct positioning of all moving parts, proper operation, and low vibration and noise. 2. Good cooling performance, with cooling water jackets surrounding the cylinder barrels to remove heat. 3. Wear resistance to ensure a long service life of the cylinder block. The upper portion of the cylinder block contains the parallel cylinder barrels. The lower part of the cylinder block is the crankcase, which is used to install the crankshaft. Various accessories such as the generator and engine bracket can also be installed on its outside.

[0003] A certain clearance between the engine's crankshaft and connecting rod is essential for normal operation. This is because the crankshaft expands during operation due to rising temperatures, causing a certain amount of axial movement. The reserved clearance ensures normal operation after this expansion. However, this clearance cannot be too large. If the reserved clearance is too large, the crankshaft and connecting rod will experience abnormal axial movement during engine operation, leading to faults such as piston deviation and connecting rod bending.

[0004] Therefore, during engine assembly, crankshaft and connecting rod clearance, a crucial element, is strictly monitored. On the engine production line, necessary measures are taken to measure crankshaft and connecting rod clearance. Products with substandard clearances are troubleshooted, and production can only proceed to the next step after ensuring that clearances meet standards. Crankshaft and connecting rod clearance, as a necessary element, plays a crucial role in the engine assembly process.

[0005] However, the existing aircraft engine cylinder assembly inspection clamping device has the following problems during use: the traditional inspection clamping method requires the operator to manually clamp and fix it before conducting the inspection, which makes the clamping time long, and when the clamping tool contacts the cylinder body, there is a certain impact, causing damage to the outside of the cylinder body, resulting in defective and unqualified products, which in turn affects production quality. Utility Model Content

[0006] The purpose of the utility model is to provide an aircraft engine cylinder assembly detection clamping device to solve the related problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aircraft engine cylinder assembly detection clamping device, comprising a robot arm adapter, a base plate and a spring connecting seat, the bottom end of the robot arm adapter is installed with a base plate, and the side wall of the base plate is installed with a light source bracket and a baffle, the side wall of the light source bracket is installed with a camera, a positioning pin for positioning the cylinder assembly is installed on the base plate, the top end of the base plate is installed with a spring connecting seat, and a shock absorbing mechanism for buffering and pressing is provided inside the spring connecting seat, and a slider is installed on the top end of the base plate. A guide rail is provided inside the slider, and a first contoured connecting plate and a second contoured connecting plate are respectively installed on the outer walls of the guide rail, a first cylinder connecting plate is installed on the top of the second contoured connecting plate, and a double-headed synchronous cylinder is installed on the side wall of the first cylinder connecting plate, a second cylinder connecting plate is installed on the side wall of the first contoured connecting plate, a connecting rod is installed on the output end of the double-headed synchronous cylinder, and the connecting rod is connected to the second cylinder connecting plate, a contoured block is installed on one side wall of the first contoured connecting plate, and a contoured clamp is installed on one side wall of the second contoured connecting plate.

[0008] The present technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein a fill light is installed on one side of the camera, and a fill light cover is provided on the outer wall of the fill light.

[0009] The present technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein the shock absorbing mechanism includes a pressure head and a precision guide shaft, the bottom end of the spring connecting seat is installed with a precision guide shaft, and the inner wall of the precision guide shaft is sleeved with a pressure head, and a fill light connected to the bottom end of the precision guide shaft is arranged inside the pressure head.

[0010] The technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein the outer wall of the precision guide shaft is installed with a metal washer in contact with the outer wall of the pressure head, and the outer wall of the precision guide shaft is sleeved with a spring body in contact with the outer wall of the pressure head.

[0011] The technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein a blocking block is installed on the top of the base plate, a buffer is provided inside the blocking block, and a bolt is installed on one side of the blocking block.

[0012] The present technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein a first stopper and a second stopper are respectively installed on the top of the base plate, and a striker plate is installed on the top of the first stopper and the second stopper.

[0013] The present technical solution provides an aircraft engine cylinder assembly detection clamping device, wherein a sensor plate is installed on the side wall of the base plate, and a proximity switch sensor is installed inside the sensor plate, and the output end of the proximity switch sensor is electrically connected to the input end of an external host computer through a wire.

[0014] Compared with the prior art, the present invention provides an aircraft engine cylinder assembly detection clamping device, which has the following beneficial effects:

[0015] 1. The utility model passes the positioning pin position through the engine component, and then starts the double-head synchronous cylinder to drive the first profiling connecting plate and the second profiling connecting plate to slide in the slider respectively, so that the second profiling connecting plate drives the guide rail, and the first profiling connecting plate drives the profiling block to clamp the engine component. When the engine component contacts the position of the proximity switch sensor, the proximity switch sensor feeds back information to the host computer, and the host computer can close the double-head synchronous cylinder to stably clamp the engine cylinder.

[0016] 2. The utility model inserts the engine parts into the bottom plate through the locating pin and penetrates the side wall of the blocking block. The buffer contacts the position of the pressure head, so that the parts in contact with the pressure head squeeze the pressure head, and then the pressure head drives the metal washer to squeeze the spring body. Since the blocking block and the spring body are both elastic elements, they can perform shock absorption and buffering when the engine parts are fitted under the action of their own elastic force, reduce the impact force during contact, and play a role of buffering protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a top-view cross-sectional structure of the present utility model;

[0018] Figure 2 This is a left-side structural schematic diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the main cross-sectional structure of the spring connecting seat and the positioning pin of the utility model;

[0022] Figure 6 For the utility model Figure 5 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. Robot arm adapter; 2. Base plate; 3. Locating pin; 4. Spring connecting seat; 5. Press head; 6. Precision guide shaft; 7. Stop block; 8. Sensor plate; 9. First cylinder connecting plate; 10. Second cylinder connecting plate; 11. Connecting rod; 12. First contour connecting plate; 13. Impact plate; 14. Second contour connecting plate; 15. Contoured clamp; 16. Contoured block; 17. First stop block; 18. Second stop block; 19. Light source bracket; 20. Baffle; 21. Fill light cover; 22. Spring body; 23. Metal washer; 24. Proximity switch sensor; 25. Guide rail; 26. Slider; 27. Buffer; 28. Bolt; 29. ​​Fill light; 30. Double-head synchronous cylinder; 31. Camera. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1, as Figure 1-2 As shown, the utility model provides a technical solution: a detection and clamping device for an aircraft engine cylinder assembly, comprising a robot arm adapter 1, a base plate 2 and a spring connecting seat 4, the bottom end of the robot arm adapter 1 is installed with the base plate 2, and the side wall of the base plate 2 is installed with a light source bracket 19 and a baffle 20, the side wall of the light source bracket 19 is installed with a camera 31, a fill light 29 is installed on one side of the camera 31, and a fill light cover 21 is provided on the outer wall of the fill light 29, by adding the camera 31 at the position of the baffle 20 to take pictures of the clamped engine cylinder, and then uploading the picture information to the host computer for comparison, then by checking the picture situation in the host computer, the difference can be known, and the picture brightness can be increased by adding the fill light 29.

[0026] Example 2, as Figure 1-6As shown, the utility model provides a technical solution: a detection and clamping device for an aircraft engine cylinder assembly, comprising a locating pin 3 for positioning the cylinder assembly installed on a base plate 2, a spring connecting seat 4 installed on the top of the base plate 2, and a shock absorbing mechanism for buffering and pressing is provided inside the spring connecting seat 4, the shock absorbing mechanism comprises a pressure head 5 and a precision guide shaft 6, the bottom end of the spring connecting seat 4 is installed with a precision guide shaft 6, and the inner wall of the precision guide shaft 6 is sleeved with a pressure head 5, a fill light 29 connected to the bottom end of the precision guide shaft 6 is provided inside the pressure head 5, a metal washer 23 in contact with the outer wall of the pressure head 5 is installed on the outer wall of the precision guide shaft 6, and the precision guide shaft 6 is provided with a metal washer 23 in contact with the outer wall of the pressure head 5. A spring body 22 in contact with the outer wall of the pressure head 5 is sleeved on the outer wall of the shaft 6, a blocking block 7 is installed on the top of the base plate 2, and a buffer 27 is provided inside the blocking block 7. The engine parts are inserted into the base plate 2 through the locating pin 3 to penetrate the side wall of the blocking block 7, and the buffer 27 contacts the position of the pressure head 5, so that the parts in contact with the pressure head 5 squeeze the pressure head 5, and then the pressure head 5 drives the metal washer 23 to squeeze the spring body 22. Since the blocking block 7 and the spring body 22 are both elastic elements, they can perform shock absorption and buffering when the engine parts are fitted under the action of their own elastic force, reduce the impact force during contact, and play a role of buffering protection.

[0027] Example 3, as Figure 1-6As shown, the utility model provides a technical solution: an aircraft engine cylinder assembly detection clamping device, comprising a slider 26 installed on the top of a base plate 2, and a guide rail 25 is provided inside the slider 26, and the outer walls of the guide rail 25 are respectively installed with a first profiling connecting plate 12 and a second profiling connecting plate 14, the top of the second profiling connecting plate 14 is installed with a first cylinder connecting plate 9, and the side wall of the first cylinder connecting plate 9 is installed with a double-headed synchronous cylinder 30, the side wall of the first profiling connecting plate 12 is installed with a second cylinder connecting plate 10, the output end of the double-headed synchronous cylinder 30 is installed with a connecting rod 11, and the connecting rod 11 is connected to the second cylinder connecting plate 10, a side wall of the first profiling connecting plate 12 is installed with a profiling block 16, a side wall of the second profiling connecting plate 14 is installed with a profiling clamping claw 15, a bolt 28 is installed on one side of the blocking block 7, and the top of the base plate 2 is respectively installed with a first profiling connecting plate 9 and a second profiling connecting plate 14. A block 17 and a second block 18, a striker 13 is installed on the top of the first block 17 and the second block 18, a sensor plate 8 is installed on the side wall of the bottom plate 2, and a proximity switch sensor 24 is installed inside the sensor plate 8, the output end of the proximity switch sensor 24 is electrically connected to the input end of the external host computer through a wire, and the positioning pin 3 position is passed through the engine parts, and then the double-headed synchronous cylinder 30 is started to drive the first profiling connecting plate 12 and the second profiling connecting plate 14 to slide in the slider 26 respectively, so that the second profiling connecting plate 14 drives the guide rail 25, and the first profiling connecting plate 12 drives the profiling block 16 to clamp the engine parts. When the engine parts contact the position of the proximity switch sensor 24, the proximity switch sensor 24 feeds back information to the host computer, and the host computer can close the double-headed synchronous cylinder 30 to stably clamp the engine cylinder body.

[0028] Working principle: In the engine production line, necessary measures will be taken to measure the clearance of the crankshaft and connecting rod, and troubleshoot the products with unqualified clearances. Only after ensuring that the clearance is qualified can the next step of production be continued. The inspection first needs to connect the external power supply, and connect the robot arm adapter 1 to the external robot arm. When the AGV trolley moves to the bottom of the device, the robot arm drives the clamp to move above the engine cylinder block, and then the positioning pin 3 contacts the center position of the engine cylinder block, and then the double-head synchronous cylinder 30 is started to drive the first profiling connecting plate 12 and the second profiling connecting plate 14 to slide in the slider 26 respectively, so that the second profiling connecting plate 14 drives the guide rail 25, and the first profiling connecting plate 12 drives the profiling block 16 to clamp the engine parts. When the engine parts contact the position of the proximity switch sensor 24, the proximity switch sensor 24 will feed back information to the host computer, and the host computer can close the double-head Synchronous cylinder 30, when the engine parts are inserted into the bottom plate 2 through the side wall of the blocking block 7 through the locating pin 3, the buffer 27 and the pressure head 5 position are in contact, so that the parts in contact with the pressure head 5 squeeze the pressure head 5, and then the pressure head 5 drives the metal washer 23 to squeeze the spring body 22. Since the blocking block 7 and the spring body 22 are both elastic elements, they can perform shock absorption and buffering when the engine parts are fitted under the action of their own elastic force, reduce the impact force during contact, and play a role in buffering protection, so that the engine cylinder body can be stably grasped. After the grasping is completed, a camera 31 is added at the position of the baffle 20 to take pictures of the clamped engine cylinder body, and the fill light 29 can increase the brightness of the picture. Then the picture information is uploaded to the host computer for comparison. By checking the picture situation in the host computer, the difference can be known. This structure is convenient for detecting the crankshaft and connecting rod clearance at the engine, and the operation is simple and the clamping is convenient.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An aircraft engine cylinder assembly inspection clamping device, comprising a robot arm adapter (1), a base plate (2) and a spring connection seat (4), characterized in that: The bottom end of the robot arm adapter (1) is mounted with a base plate (2), and the side wall of the base plate (2) is mounted with a light source bracket (19) and a baffle (20), the side wall of the light source bracket (19) is mounted with a camera (31), the base plate (2) is mounted with a positioning pin (3) for positioning the cylinder assembly, the top end of the base plate (2) is mounted with a spring connection seat (4), and a shock absorbing mechanism for buffering and pressing is provided inside the spring connection seat (4), the top end of the base plate (2) is mounted with a slider (26), and a guide rail (25) is provided inside the slider (26), and the outer wall of the guide rail (25) is respectively mounted with a first contoured connection plate (12) and a second profiling connecting plate (14), the top of the second profiling connecting plate (14) is mounted with a first cylinder connecting plate (9), and the side wall of the first cylinder connecting plate (9) is mounted with a double-headed synchronous cylinder (30), the side wall of the first profiling connecting plate (12) is mounted with a second cylinder connecting plate (10), the output end of the double-headed synchronous cylinder (30) is mounted with a connecting rod (11), and the connecting rod (11) is connected to the second cylinder connecting plate (10), a profiling block (16) is mounted on one side wall of the first profiling connecting plate (12), and a profiling clamping claw (15) is mounted on one side wall of the second profiling connecting plate (14).

2. The aircraft engine cylinder assembly inspection clamping device according to claim 1, characterized in that: A fill light (29) is installed on one side of the camera (31), and a fill light cover (21) is provided on the outer wall of the fill light (29).

3. The aircraft engine cylinder assembly inspection clamping device according to claim 1, characterized in that: The shock absorbing mechanism comprises a pressure head (5) and a precision guide shaft (6); the bottom end of the spring connecting seat (4) is provided with the precision guide shaft (6); the inner wall of the precision guide shaft (6) is provided with a pressure head (5); and a fill light (29) connected to the bottom end of the precision guide shaft (6) is provided inside the pressure head (5).

4. The aircraft engine cylinder assembly inspection clamping device according to claim 3, characterized in that: The outer wall of the precision guide shaft (6) is provided with a metal washer (23) in contact with the outer wall of the pressure head (5), and the outer wall of the precision guide shaft (6) is sleeved with a spring body (22) in contact with the outer wall of the pressure head (5).

5. The aircraft engine cylinder assembly inspection clamping device according to claim 1, characterized in that: A blocking block (7) is installed at the top end of the bottom plate (2), a buffer (27) is provided inside the blocking block (7), and a bolt (28) is installed on one side of the blocking block (7).

6. The aircraft engine cylinder assembly inspection clamping device according to claim 1, characterized in that: A first stopper (17) and a second stopper (18) are respectively installed on the top end of the bottom plate (2), and a collision plate (13) is installed on the top end of the first stopper (17) and the second stopper (18).

7. The aircraft engine cylinder assembly inspection clamping device according to claim 1, characterized in that: A sensor board (8) is installed on the side wall of the base plate (2), and a proximity switch sensor (24) is installed inside the sensor board (8). The output end of the proximity switch sensor (24) is electrically connected to the input end of an external host computer through a wire.

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