Aero-engine blade machining center spindle motion precision adjusting device

Abstract

The application relates to an aero-engine blade machining center main shaft movement precision adjusting device, and relates to the technical field of machining centers. The device comprises a sliding rail arranged on a column of the machining center; a ball sliding block connected with the sliding rail and provided with an oil filler; a sliding frame connected with the machining center main shaft and detachably connected with the ball sliding block; a ball screw rotatably connected with the column and provided with a central oil hole, a plurality of through oil outlet holes being arranged on the hole wall of the central oil hole; a nut threadedly connected with the ball screw and detachably connected with the sliding frame; and an oil supply assembly comprising an oil supply cylinder filled with lubricating grease and a sliding piston slidably connected in the oil supply cylinder, the end of the sliding piston, which faces the sliding frame, being provided with a piston rod penetrating out of the oil supply cylinder, the end of the oil supply cylinder, which is away from the sliding frame, being connected with a first oil supply pipe and a second oil supply pipe provided with an oil filler, and the first oil supply pipe being rotatably connected with the ball screw. The application has the effect of improving the working efficiency of the main shaft movement adjusting device.

Description

Technical Field

[0001] This application relates to the technical field of machining centers, and in particular to a precision adjustment device for the spindle motion of an aero-engine blade machining center. Background Technology

[0002] Aero-engine blades are a crucial component of aero-engines. A well-designed blade shape can improve the engine's aerodynamic performance, reduce adverse effects such as vibration, temperature, and noise, and enhance overall engine efficiency. Due to the complex shape of aero-engine blades, manufacturers typically use machining centers for the machining processes.

[0003] The spindle of a machining center is used to hold the cutting tool and drive the tool to rotate to cut the workpiece. The computer system controls the spindle motion precision adjustment device to move and change the angle of the spindle. In conjunction with the movement of the worktable that carries the workpiece, the cutting of the workpiece at different angles can be achieved. The spindle motion precision adjustment device usually includes components such as ball screws and ball slides. During use, it is necessary to use grease to lubricate it in time to ensure normal operation. If lubrication and maintenance are not performed in time, it may lead to a decrease in the spindle motion accuracy.

[0004] Regarding the aforementioned technologies, the inventors discovered that when grease needs to be added, the equipment must be stopped and grease must be added to each component separately, which affects work efficiency. Summary of the Invention

[0005] In order to improve the working efficiency of the spindle motion adjustment device, this application provides a precision adjustment device for the spindle motion of an aero-engine blade machining center.

[0006] The proposed precision adjustment device for the spindle motion of an aero-engine blade machining center adopts the following technical solution:

[0007] A precision adjustment device for the spindle motion of an aero-engine blade machining center includes:

[0008] The slide rail is mounted on the column of the machining center;

[0009] The ball-bearing slider is connected to the slide rail and is equipped with a grease nipple.

[0010] The carriage is connected to the machining center spindle and is detachably connected to the ball slide.

[0011] The ball screw is rotatably connected to the column and has a central oil hole. The wall of the central oil hole has multiple through-holes.

[0012] The nut is threaded to the ball screw and is detachably connected to the carriage.

[0013] The oil supply assembly includes an oil supply cylinder containing grease and a sliding piston slidably connected inside the oil supply cylinder. The sliding piston has a piston rod extending out of the oil supply cylinder at one end facing the slide. The oil supply cylinder is connected to a first oil supply pipe and a second oil supply pipe with an oil supply nozzle at one end away from the slide. The first oil supply pipe is rotatably connected to a ball screw, and the oil supply nozzle is used to supply oil to the oil filler nozzle.

[0014] The movement of the carriage connects the grease supply nozzle to the grease filler nozzle, while the carriage pushes the piston rod, and the sliding piston squeezes the grease, causing the grease to flow from the grease supply cylinder into the ball slide block and ball screw.

[0015] By adopting the above technical solution, when it is necessary to add grease to the ball screw and ball slide, simply move the carriage towards the oil supply assembly. The grease nipple of the ball slide can then connect to the oil supply nipple. The carriage pushes the piston rod, and the sliding piston moves away from the carriage. The sliding piston can then squeeze the grease in the oil supply cylinder and force the grease into the first and second oil supply pipes. This enables the first oil supply pipe to supply oil to the ball screw and the second oil supply pipe to supply oil to the ball slide, reducing equipment downtime and improving the working efficiency of the spindle motion adjustment device.

[0016] Optionally, the fuel nozzle is slidably connected to the second fuel supply pipe, and a second spring is provided between the fuel nozzle and the second fuel supply pipe. The second spring pushes the fuel nozzle toward the fuel filler nozzle.

[0017] By adopting the above technical solution, before the slide pushes the piston rod, the filler nozzle will first come into contact with the oil supply nozzle. As the slide continues to move, the oil supply nozzle compresses the second spring, so that the connection between the filler nozzle and the oil supply nozzle is maintained when the slide moves.

[0018] Optionally, a stabilizer frame that snaps onto the second oil supply pipe can be detachably connected to the column.

[0019] By adopting the above technical solution, the stabilizer is used to support the second oil supply pipe, so that when the second spring is compressed, the second oil supply pipe is not easy to shake or displace, thereby improving the oil supply stability of the second oil supply pipe.

[0020] Optionally, a pushing member is connected to the slide, and a pushing sleeve is slidably connected to one end of the piston rod facing the slide. A first spring is provided between the pushing sleeve and the piston rod, and the first spring pushes the pushing sleeve toward the pushing member.

[0021] By adopting the above technical solution, the push sleeve replaces the piston rod in contact with the push component, and the first spring can also play a shock absorption role between the push sleeve and the piston rod, making it less likely for the push component to damage the piston rod.

[0022] Optionally, the combination of slide rail and ball slider is provided on each side of the ball screw; two oil supply cylinders, two sliding pistons, two first oil supply pipes and two second oil supply pipes are provided, corresponding to the positions of the two slide rails respectively; the two first oil supply pipes are connected and merged to jointly connect to the ball screw; a synchronization plate is connected between the two piston rods.

[0023] By adopting the above technical solution, the two slide rails can make the lifting and lowering of the slide frame more stable, and the two oil supply cylinders are respectively located on both sides of the ball screw, which can make the oil supply of the second oil supply pipe to each ball slider more uniform, while reducing the required space.

[0024] Optionally, the oil supply assembly further includes:

[0025] An oil storage tank is mounted on a column and connected to the end of an oil supply cylinder furthest from the piston rod via a pipe.

[0026] The electric cylinder is mounted on the column, with the push rod facing the synchronization plate.

[0027] By adopting the above technical solution, when the amount of grease remaining in the oil supply cylinder is low, the synchronous plate can be pushed by the electric cylinder to move the sliding piston and draw the grease in the oil storage tank into the oil supply cylinder.

[0028] Optionally, the push rod end of the electric cylinder is ball-hinged with a contact seat.

[0029] By adopting the above technical solution, the contact seat can automatically fit with the synchronization plate after contacting the synchronization plate, so that the electric cylinder can push the synchronization plate more smoothly.

[0030] Optionally, the column is equipped with a controller and a proximity sensor facing the synchronization plate, and the controller is electrically connected to the proximity sensor and the electric cylinder;

[0031] When the sliding piston moves to the predetermined position, the synchronizing plate triggers the proximity sensor, which transmits an electrical signal to the controller. After a delay, the controller controls the electric cylinder to push the synchronizing plate, causing the sliding piston to move toward the carriage, allowing the grease in the oil reservoir to flow into the oil supply cylinder.

[0032] By adopting the above technical solution, when the grease in the oil supply cylinder is insufficient, the sliding piston moves, causing the synchronous plate to trigger the proximity sensor. The proximity sensor sends an electrical signal to the controller. After a delay, the controller controls the electric cylinder to extend and move the sliding piston until it reaches the preset position, at which point the grease in the oil supply cylinder is complete. Then, the controller controls the electric cylinder to retract, completing one oil supply cylinder filling operation. The delay of the controller allows the sliding piston to move normally, enabling the oil supply cylinder to complete one filling operation on the ball screw and ball slider. After that, the sliding piston moves in the opposite direction to complete the oil supply cylinder filling operation. The operation of the electric cylinder will not interfere with the movement of the carriage.

[0033] Optionally, the oil supply assembly is provided at both the top and bottom of the column.

[0034] By adopting the above technical solution, it is convenient to add grease to both ends of the ball screw and the ball sliders located on the upper and lower sides, which can make the grease application more uniform.

[0035] Optionally, the spindle motion adjustment device further includes a drive assembly, which includes:

[0036] The drive motor is mounted on the column.

[0037] The transmission component connects the output shaft of the drive motor and the ball screw.

[0038] By adopting the above technical solution, the drive motor can drive the ball screw to rotate normally.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. When it is necessary to add grease to the ball screw and ball slide, simply move the slide towards the oil supply assembly. The oil supply nozzle of the ball slide can then connect to the oil supply nozzle. The slide pushes the piston rod, and the sliding piston moves away from the slide. The sliding piston can then squeeze the grease in the oil supply cylinder and squeeze the grease into the first oil supply pipe and the second oil supply pipe. This enables the first oil supply pipe to supply oil to the ball screw and the second oil supply pipe to supply oil to the ball slide, reducing equipment downtime and improving the working efficiency of the spindle motion adjustment device.

[0041] 2. Before the slide pushes the piston rod, the grease nipple will first come into contact with the oil supply nozzle. As the slide continues to move, the oil supply nozzle compresses the second spring, so that the connection between the grease nipple and the oil supply nozzle is maintained when the slide moves.

[0042] 3. The push sleeve replaces the piston rod in contact with the push component, and the first spring can also play a shock absorption role between the push sleeve and the piston rod, so that the push component is not easy to damage the piston rod;

[0043] 4. When the grease in the oil supply cylinder is insufficient, the sliding piston moves, causing the synchronous plate to trigger the proximity sensor. The proximity sensor sends an electrical signal to the controller. After a delay, the controller controls the electric cylinder to extend and move the sliding piston until it reaches the preset position, at which point the grease in the oil supply cylinder is complete. Then, the controller controls the electric cylinder to retract, completing one oil supply cylinder filling operation. The delay of the controller is to allow the sliding piston to move normally, so that the oil supply cylinder completes one filling operation for the ball screw and ball slider. Then, the sliding piston moves in the opposite direction to complete the filling operation of the oil supply cylinder. The operation of the electric cylinder will not interfere with the movement of the carriage.

[0044] 5. Installing a set of oil supply components at the top and bottom of the column facilitates the application of grease to both ends of the ball screw and the ball sliders located on the upper and lower sides, resulting in more even grease application. Attached Figure Description

[0045] Figure 1 This is a schematic diagram showing the position of an embodiment of this application on a machining center;

[0046] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the structure of the driving component in an embodiment of this application;

[0048] Figure 4 This is a partial cross-sectional structural diagram of the oil supply cylinder in an embodiment of this application;

[0049] Figure 5 This is a partial cross-sectional schematic diagram of the second oil supply pipe in an embodiment of this application;

[0050] In the diagram, 100 is the column; 1 is the slide rail; 2 is the ball bearing slider; 21 is the filler nozzle; 3 is the carriage; 31 is the pusher; 32 is the pusher sleeve; 33 is the first spring; 4 is the ball screw; 5 is the nut; 6 is the oil supply assembly; 61 is the oil supply cylinder; 62 is the sliding piston; 621 is the piston rod; 63 is the first oil supply pipe; 64 is the second oil supply pipe; 641 is the oil supply nozzle; 642 is the second spring; 643 is the stabilizer; 65 is the oil reservoir; 66 is the electric cylinder; 661 is the contact seat; 67 is the proximity sensor; 68 is the controller; 7 is the synchronization plate; 8 is the drive assembly; 81 is the drive motor; and 82 is the transmission component. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0052] This application proposes a precision adjustment device for the spindle motion of an aero-engine blade machining center, referring to... Figure 1 and Figure 2 The system includes a slide rail 1, a ball slider 2, a carriage 3, a ball screw 4, a nut 5, an oil supply assembly 6, and a drive assembly 8. The ball screw 4 is rotatably connected to the column 100 of the machining center; there are two slide rails 1, which are set on the columns 100 on both sides of the ball screw 4; the ball slider 2 is slidably connected to the slide rail 1; the nut 5 is threadedly connected to the ball screw 4; the carriage 3 connects the ball slider 2 and the nut 5; there are two sets of oil supply assemblies 6, which are respectively set at both ends of the column 100, for adding grease to the ball screw 4 and the ball slider 2; the drive assembly 8 is set on the column 100 and is used to drive the ball screw 4 to rotate.

[0053] A rotating support is bolted to the column 100, and the ball screw 4 is rotatably connected to the rotating support. Each end of the ball screw 4 has a central oil hole, and the wall of the central oil hole has multiple oil outlet holes. The oil outlet holes are connected to the root of the thread on the ball screw 4, so that the grease entering the central oil hole can overflow from the oil outlet holes. The overflowing grease is pushed by the nut 5 as it passes by, and evenly covers the balls of the nut 5 and the surface of the ball screw 4.

[0054] Reference Figure 1 and Figure 3 The drive assembly 8 includes a drive motor 81 and a transmission component 82. The drive motor 81 is bolted to the side of the column 100 away from the ball screw 4, and the transmission component 82 is connected between the output shaft of the drive motor 81 and the ball screw 4. The transmission component 82 can be any of the following forms: gear drive, belt drive, chain drive, or synchronous belt drive. In this embodiment, the transmission component 82 uses synchronous belt drive to drive the ball screw 4 to rotate. A synchronous pulley is connected to the output shaft of the drive motor 81 and the ball screw 4, respectively, and the synchronous belt is fitted onto the two synchronous pulleys.

[0055] Reference Figure 1 and Figure 2 There are two slide rails 1, which are bolted to the side walls of the columns 100 on both sides of the ball screw 4. The two slide rails 1 are parallel to the ball screw 4.

[0056] The ball bearing slider 2 is slidably connected to the slide rail 1. Each slide rail 1 has two ball bearing sliders 2. The two ball bearing sliders 2 have a grease nipple 21 at their opposite ends, which connects to the cavity inside the ball bearing slider 2 through which the balls move. Each slider has two grease nipples 21, located on both sides of the slide rail 1.

[0057] The slide 3 is bolted to four ball bearing sliders 2 and can slide along the slide rail 1. A spindle is mounted on the slide 3, which is used to clamp and rotate the cutting tool to mill the aero-engine blades. The vertical movement of the slide 3 corresponds to the movement direction of the machining center along the Z-axis.

[0058] The nut 5 is threaded onto the ball screw 4 and bolted to the slide 3. By rotating the ball screw 4, the nut 5 can move up and down, thereby driving the slide 3 to move up and down along the slide rail 1.

[0059] Two sets of oil supply assemblies 6 are provided, respectively located at the upper and lower ends of the column 100. Both sets of oil supply assemblies 6 have identical structures. Taking the upper oil supply assembly 6 as an example, the oil supply assembly 6 includes an oil supply cylinder 61, a sliding piston 62, a first oil supply pipe 63, a second oil supply pipe 64, an oil storage tank 65, and an electric cylinder 66. Each set of oil supply assemblies 6 has two oil supply cylinders 61, with a vertical central axis. A bracket is welded to the side wall facing the column 100, and the bracket is bolted to the column 100. The two oil supply cylinders 61 are located on either side of the ball screw 4.

[0060] Reference Figure 2 and Figure 3 The sliding piston 62 has the same inner diameter as the oil supply cylinder 61 and is slidably connected inside the oil supply cylinder 61. A piston rod 621 is welded to the side of the sliding piston 62 facing the slide 3, and the piston rod 621 extends out of the oil supply cylinder 61 in the direction towards the slide 3. The side wall of the oil supply cylinder 61 facing the slide 3 has a through hole to balance the air pressure inside the oil supply cylinder 61. The side of the sliding piston 62 away from the piston rod 621 forms an oil cavity for storing grease between itself and the inner wall of the oil supply cylinder 61. The oil reservoir 65 is located at the top of the column 100 and is filled with grease. Its bottom end is connected to the end of the oil supply cylinder 61 away from the piston rod 621 through a pipe. A one-way valve is provided on the pipe so that the grease in the pipe can only flow in the direction towards the oil supply cylinder 61.

[0061] A pusher sleeve 32 is slidably connected to one end of the piston rod 621 that protrudes from the oil supply cylinder 61. The end of the pusher sleeve 32 facing away from the piston rod 621 is closed and has a convex surface. A convex ring is provided on the piston rod 621, and a first spring 33 is sleeved on the piston rod 621, with its two ends abutting against the convex ring and the pusher sleeve 32 respectively. A pusher component 31 is welded to the slide 3 at the position corresponding to the piston rod 621. The pusher component 31 has an L-shaped longitudinal section and is used to directly contact the pusher sleeve 32 and push it. The pusher sleeve 32 replaces the piston rod 621 in contact with the pusher component 31, making it less likely for the pusher component 31 to damage the piston rod 621. The first spring 33 can also play a shock absorption role between the pusher sleeve 32 and the piston rod 621. A synchronization plate 7 is fixedly connected between the piston rods 621 of the same oil supply assembly 6. The synchronization plate 7 is an oval arc plate used to enable the two sliding pistons 62 to slide synchronously.

[0062] A first oil supply pipe 63 connects the two oil supply cylinders 61 of the same oil supply assembly 6. The first oil supply pipe 63 is a three-way valve, with both ends connecting to the ends of the two oil supply cylinders 61 away from the piston rod 621; one end is equipped with a one-way valve, which is coaxially rotatably connected to the ball screw 4 and connected to the central oil hole of the ball screw 4. The one-way valve ensures that the grease in the first oil supply pipe 63 can only flow in the direction towards the ball screw 4.

[0063] Reference Figure 2 and Figure 4The second oil supply pipe 64 is a rigid pipe, with one end connected to the end of the oil supply cylinder 61 away from the piston rod 621, and the other end bent and extending towards the ball slider 2. A one-way valve is installed on the second oil supply pipe 64, ensuring that the grease inside the pipe flows only away from the oil supply cylinder 61. A stabilizer 643 is bolted to the column 100, and the stabilizer 643 engages with the second oil supply pipe 64 to support and lock its position. An oil supply nozzle 641 is slidably connected to the end of the second oil supply pipe 64 facing the ball slider 2. A second spring 642 is located between the oil supply nozzle 641 and the second oil supply pipe 64, pushing the oil supply nozzle 641 away from the second oil supply pipe 64. When the slide 3 slides towards the oil supply assembly 6, the oil supply nozzle 641 first engages with the oil filler nozzle 21. As the slide 3 continues to slide, the oil supply nozzle 641 moves synchronously, compressing the second spring 642, thus maintaining the connection between the oil supply nozzle 641 and the oil filler nozzle 21.

[0064] An electric cylinder 66 is bolted to the column 100. The cylinder body of the electric cylinder 66 is connected to the column 100, and one end of the push rod faces the synchronizing plate 7, used to push the synchronizing plate 7 away from the oil supply cylinder 61. A contact seat 661 is ball-hinged to the push rod of the electric cylinder 66. The contact seat 661 is used to directly contact the synchronizing plate 7 and can automatically conform to the surface of the synchronizing plate 7, so that the electric cylinder 66 can push the synchronizing plate 7 more effectively. A proximity sensor 67 is bolted to the column 100, located on the side of the synchronizing plate 7 away from the slide 3, with the probe of the proximity sensor 67 facing the synchronizing plate 7. A controller 68 is also provided on the column 100, and the controller 68 is electrically connected to the proximity sensor 67 and the electric cylinder 66 by wires.

[0065] When the grease in the oil supply cylinder 61 is insufficient, the movement of the sliding piston 62 triggers the proximity sensor 67 on the synchronizing plate 7. The proximity sensor 67 sends an electrical signal to the controller 68. After a delay, the controller 68 controls the electric cylinder 66 to extend and push the synchronizing plate 7, causing the sliding piston 62 to move towards the carriage 3. The grease in the oil reservoir 65 flows into the oil supply cylinder 61 until the sliding piston 62 reaches the preset position, completing the grease filling of the oil supply cylinder 61. Afterward, the controller 68 controls the electric cylinder 66 to retract, completing one grease filling operation of the oil supply cylinder 61. The delay of the controller 68 is to allow the sliding piston 62 to move normally, completing one grease filling operation of the oil supply cylinder 61 on the ball screw 4 and the ball slider 2, ensuring the lubrication of the ball screw 4 and the ball slider 2, and ensuring that the operation of the electric cylinder 66 does not interfere with the movement of the carriage 3.

[0066] The implementation principle of this embodiment is as follows: the slide 3 moves upward, the grease supply nozzle 641 connects with the grease filler nozzle 21, and the pusher 31 pushes the piston rod 621, causing the sliding piston 62 to squeeze the grease in the grease supply cylinder 61. The grease flows to the first grease supply pipe 63 and the second grease supply pipe 64, thus adding grease to the ball screw 4 and the ball slider 2 without stopping the machine, reducing downtime and improving the working efficiency of the spindle motion adjustment device. When the grease level in the grease supply cylinder 61 is low, the electric cylinder 66 can automatically operate, pushing the synchronous plate 7 to create a negative pressure in the grease supply cylinder 61, enabling the oil storage tank 65 to add grease to the grease supply cylinder 61. This also reduces downtime and improves the working efficiency of the spindle motion adjustment device.

[0067] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision adjustment device for the spindle motion of an aero-engine blade machining center, characterized in that, include: The slide rail (1) is installed on the column (100) of the machining center; The ball slider (2) is connected to the sliding rail (1) and is equipped with a grease nipple (21). The carriage (3) is connected to the machining center spindle and is detachably connected to the ball slide (2); The ball screw (4) is rotatably connected to the column (100) and has a central oil hole. The wall of the central oil hole has multiple through oil outlet holes. The nut (5) is threaded to the ball screw (4) and detachably connected to the carriage (3); The oil supply assembly (6) includes an oil supply cylinder (61) filled with grease and a sliding piston (62) slidably connected inside the oil supply cylinder (61). The sliding piston (62) has a piston rod (621) extending out of the oil supply cylinder (61) at one end facing the slide (3). The oil supply cylinder (61) is connected to a first oil supply pipe (63) and a second oil supply pipe (64) with an oil supply nozzle (641) at one end away from the slide (3). The first oil supply pipe (63) is rotatably connected to the ball screw (4), and the oil supply nozzle (641) is used to supply oil to the oil filler nozzle (21). The movement of the slide (3) connects the oil supply nozzle (641) to the oil filling nozzle (21), and at the same time the slide (3) pushes the piston rod (621), and the sliding piston (62) squeezes the grease so that the grease flows from the oil supply cylinder (61) into the ball slider (2) and the ball screw (4); The oil supply nozzle (641) is slidably connected to the second oil supply pipe (64), and a second spring (642) is provided between the oil supply nozzle (64) and the second oil supply pipe (64). The second spring (642) pushes the oil supply nozzle (641) towards the oil filling nozzle (21). The combination of the slide rail (1) and the ball slider (2) is provided on both sides of the ball screw (4); there are two oil supply cylinders (61), two sliding pistons (62), two first oil supply pipes (63) and two second oil supply pipes (64), which correspond to the positions of the two slide rails (1) respectively; the two first oil supply pipes (63) are connected and merged to connect the ball screw (4); a synchronous plate (7) is connected between the two piston rods (621). The oil supply assembly (6) also includes: An oil storage tank (65) is installed on a column (100) and connected to the end of an oil supply cylinder (61) away from the piston rod (621) via a pipe; An electric cylinder (66) is mounted on a column (100), with the push rod facing the synchronizing plate (7). The column (100) is equipped with a controller (68) and a proximity sensor (67) facing the synchronization plate (7). The controller (68) is electrically connected to the proximity sensor (67) and the electric cylinder (66). When the sliding piston (62) moves to the predetermined position, the synchronizing plate (7) triggers the proximity sensor (67), which transmits an electrical signal to the controller (68). After a delay, the controller (68) controls the electric cylinder (66) to push the synchronizing plate (7), causing the sliding piston (62) to move toward the slide (3), so that the grease in the oil reservoir (65) flows into the oil supply cylinder (61).

2. The precision adjustment device for the spindle motion of an aero-engine blade machining center according to claim 1, characterized in that, The column (100) is detachably connected to a stabilizer (643) that snaps onto the second oil supply pipe (64).

3. The precision adjustment device for the spindle motion of an aero-engine blade machining center according to claim 1, characterized in that, A pusher (31) is connected to the slide (3). A pusher sleeve (32) is slidably connected to one end of the piston rod (621) facing the slide (3). A first spring (33) is provided between the pusher sleeve (32) and the piston rod (621). The first spring (33) pushes the pusher sleeve (32) towards the pusher (31).

4. The precision adjustment device for the spindle motion of an aero-engine blade machining center according to claim 1, characterized in that, The push rod end of the electric cylinder (66) is ball-hinged with a contact seat (661).

5. A precision adjustment device for the spindle motion of an aero-engine blade machining center according to any one of claims 1-4, characterized in that, The oil supply assembly (6) is provided at the top and bottom of the column (100).

6. The precision adjustment device for the spindle motion of an aero-engine blade machining center according to claim 5, characterized in that, It also includes a driver component (8), which includes: A drive motor (81) is mounted on a column (100); The transmission component (82) is connected between the output shaft of the drive motor (81) and the ball screw (4).

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