Rolling chuck device for automatic feeding and discharging blade rolling mill

Abstract

The invention provides a rolling chuck device for an automatic feeding and discharging blade rolling mill, which is used for clamping a blade for the automatic feeding and discharging blade rolling mill, the blade is placed in a positioning block, a rear air nozzle of an air cylinder intakes air to push a piston rod of the air cylinder to extend forwards, and the air cylinder is positioned in the positioning block. A rear push block connected with the piston rod moves forwards, so that a front push block sliding seat pushes the blade tightly, the piston rod extends forwards continuously, an upper wedge surface of the rear push block pushes a roller upwards, a rotary pressing block presses the blade tightly, and a sensor confirms the position of an air cylinder and the clamping state of the blade and feeds back; after rolling of the blade is completed, the rear push block moves to drive the rotary pressing block to loosen the blade through the tension spring, and the front push block sliding seat is driven to move backwards through the step push rod along with continuous retreating of the movable air cylinder piston rod. The clamp has the advantages of being high in efficiency, accurate in positioning, stable in clamping, convenient to operate and high in universality. In production, operation of workers is omitted, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aero-engine blade manufacturing, and in particular to a rolling chuck device for an automatic loading and unloading blade rolling mill. Background Art

[0002] Aircraft engine blade manufacturing technology is one of the most complex technologies in the turbine machinery manufacturing industry, and it also involves a wide range of specialized fields within the machinery manufacturing industry. Therefore, the level of blade manufacturing technology reflects, to a certain extent, the level of aircraft engine manufacturing technology.

[0003] Precision cold rolling of blade profiles involves passing the blade blank through a pair of rotating roller dies, where the die grooves exert pressure on the deformed metal, causing it to plastically deform, thereby achieving the desired blade profile. This process offers significant advantages in manufacturing cost, production efficiency, and product microstructure over CNC milling, precision forging, and precision electrolysis.

[0004] The blade rolling equipment has the function of semi-automated cyclic rolling, but the loading operation of installing the blade blank and the unloading process of the rolled blade require manual operation. When loading, the worker uses a hammer to hit the wedge iron to fix the blade blank on the rolling chuck. When unloading, the wedge iron is hit again to loosen the rolled blade and then remove the blade. In order to reduce the labor intensity of manual operation and improve production efficiency, the blade rolling is implemented with automated loading and unloading, and a robot replaces manual operation during the rolling process. During the implementation process, the design of the rolling chuck became a major technical difficulty. Due to the narrow space through which the rolling chuck passes, the cross-sectional profile cannot be larger than 60mm×60mm. At the same time, the fixture requires a large clamping stroke and automated feedback function. Therefore, the design of a chuck with a compact structure, a large clamping stroke, and feedback of position information becomes the core of achieving the above operations.

[0005] Designing an automated rolling chuck with automated control functions can improve the processing quality of this type of rolled blades, increase production efficiency, and reduce production costs. The application of this tooling in the automated production process of certain rolled blades is of great significance. Summary of the Invention

[0006] The purpose of the present invention is to improve the rolling quality of rolled blades, increase production efficiency and reduce production costs, and specially provides a rolling chuck device for an automatic loading and unloading blade rolling machine.

[0007] The rolling chuck device for the automatic loading and unloading blade rolling mill is used for clamping blades for the automatic loading and unloading blade rolling mill. The tooling includes a base 1, a clamping component 3, a positioning component 4, and a power component 2.

[0008] The base is used to install the clamping assembly 3, the positioning assembly 4, and the power assembly 2. A positioning boss is opened at the tail of the base for vertical guidance, which is connected to the piston rod of the machine tool through bolts. There is a high-precision threaded hole on the positioning boss for adjusting the vertical position of the chuck.

[0009] The clamping assembly 3 includes guide plates 9 at both ends, a rear push block 11 assembly, a front push block assembly, a step push rod, and a tension spring; a group of guide plates 9 is used for sliding guidance of the front push block assembly and the rear push block 11 assembly, and the front push block assembly and the rear push block 11 assembly are connected by a step push rod with a spring, and relative movement can be generated between the front push block assembly and the rear push block 11 assembly. The tension spring 20 between the rotating clamping block 14 and the rear push block 11 ensures that the wedge surface of the rear push block 11 fits with the roller 12.

[0010] The backward block assembly is connected to the piston rod of the cylinder 6 in the power assembly 2 through the piston connecting rod 10 and the pin 19. The roller 12 is connected to the rotating clamping block 14 through the pin 13. The rotating clamping block 14 is connected to the forward push block slide 15 through the rotating pin 16.

[0011] The positioning assembly 4 consists of a positioning block 22, a side block 25, a side adjustment pad 24, a bottom adjustment pad and a sensor 8; the positioning block 22 is connected to the base by a screw, the positioning block 22 is used to position the blade process table, the side block 25 is used to position the blade process table in the horizontal direction, the side adjustment pad 24 is used to adjust the blade process table in the horizontal direction, and the bottom adjustment pad is used to rotate the gap between the clamping block 14 and the positioning block 22. A sensor 8 is installed in the positioning block 22 to confirm whether the blade is correctly installed in the positioning block 22.

[0012] The power assembly 2 comprises a cylinder 6, an air nozzle, and a sensor 8. The cylinder 6 is bolted to the base. Two air nozzles are mounted on the cylinder 6 and connected to the machine tool's air source to propel the piston. Position sensor 8, mounted on the sidewall of the cylinder 6, receives signals from the magnetic ring on the piston, determines the position of the piston rod, and provides feedback to ensure rolling safety.

[0013] The movement process of the rolling chuck device for the automatic loading and unloading blade rolling mill is as follows: the blade is placed in the positioning block 22, the air intake of the rear air nozzle of the cylinder 6 pushes the piston rod of the cylinder 6 forward, and the rear push block 11 connected to the piston rod moves forward. The spring sleeved on the step push rod pushes the front push block slide 15 to move forward, so that the front push block slide 15 pushes the blade tightly. As the piston rod continues to extend forward, the upper wedge surface of the rear push block 11 pushes the roller 12 upward, and the rotating clamping block 14 presses the blade. The sensor 8 confirms the position of the cylinder 6 and the clamping state of the blade and provides feedback.

[0014] After the blade is rolled, the air intake of the front air nozzle 7 of the cylinder 6 pushes the piston rod of the cylinder 6 to retreat, and the movement of the rear push block 11 drives the rotating pressing block 14 to loosen the blade through the tension spring 20. As the piston rod of the dynamic cylinder 6 continues to retreat, the front push block slide 15 moves backward through the step push rod.

[0015] Advantages of the present invention:

[0016] The roller chuck device for an automated blade rolling mill with loading and unloading, described in this invention, solves the problem of working in a confined space. It features pneumatic control, a long clamping stroke, and position information feedback. It boasts high efficiency, accurate positioning, stable clamping, convenient operation, and strong versatility. Currently, roller chucks for rolling blades at multiple levels have been successfully implemented in production, improving blade processing efficiency, eliminating manual labor, and reducing production costs. The results are promising, and with the company's increased production capacity and widespread adoption, the economic benefits are expected to increase significantly.

[0017] Figures in the specification

[0018] Figure 1 This is a schematic diagram of a chuck for automated blade rolling;

[0019] Figure 2 Schematic diagram of the power assembly;

[0020] Figure 3 Schematic diagram of the compression assembly;

[0021] Figure 4 A schematic diagram of the positioning component. DETAILED DESCRIPTION

[0022] The present invention will be further explained below in conjunction with specific implementation plans, but the present invention is not limited thereto. The structures, proportions, and sizes illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no technical significance. Any structural modification, change in proportional relationship, or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0023] The rolling chuck device for the automatic loading and unloading blade rolling mill is used for clamping blades for the automatic loading and unloading blade rolling mill. The tooling includes a base, a clamping component 3, a positioning component 4, and a power component 2.

[0024] The base is used to install the clamping assembly 3, the positioning assembly 4, and the power assembly 2. A positioning boss is opened at the tail of the base for vertical guidance, which is connected to the piston rod of the machine tool through bolts. There is a high-precision threaded hole on the positioning boss for adjusting the vertical position of the chuck.

[0025] The clamping assembly 3 includes guide plates 9 at both ends, a rear push block 11 assembly, a front push block assembly, a step push rod, and a tension spring; a group of guide plates 9 is used for sliding guidance of the front push block assembly and the rear push block 11 assembly, and the front push block assembly and the rear push block 11 assembly are connected by a step push rod with a spring, and relative movement can be generated between the front push block assembly and the rear push block 11 assembly. The tension spring 20 between the rotating clamping block 14 and the rear push block 11 ensures that the wedge surface of the rear push block 11 fits with the roller 12.

[0026] The backward block assembly is connected to the piston rod of the cylinder 6 in the power assembly 2 through the piston connecting rod 10 and the pin 19. The roller 12 is connected to the rotating clamping block 14 through the pin 13. The rotating clamping block 14 is connected to the forward push block slide 15 through the rotating pin 16.

[0027] The positioning assembly 4 consists of a positioning block 22, a side block 25, a side adjustment pad 24, a bottom adjustment pad and a sensor 8; the positioning block 22 is connected to the base by a screw, the positioning block 22 is used for positioning the blade process table, the side block 25 is used for horizontal positioning of the blade process table, the side adjustment pad 24 is used for horizontal adjustment of the blade process table, and the bottom adjustment pad 23 is used to rotate the gap between the clamping block 14 and the positioning block 22. A sensor 8 is installed in the positioning block 22 to confirm whether the blade is correctly installed in the positioning block 22.

[0028] The power assembly 2 comprises a cylinder 6, an air nozzle, and a sensor 8. The cylinder 6 is bolted to the base. Two air nozzles are mounted on the cylinder 6 and connected to the machine tool's air source to propel the piston. Position sensor 8, mounted on the sidewall of the cylinder 6, receives signals from the magnetic ring on the piston, determines the position of the piston rod, and provides feedback to ensure rolling safety.

[0029] The movement process of the rolling chuck device for the automatic loading and unloading blade rolling mill is as follows: the blade is placed in the positioning block 22, the air intake of the rear air nozzle 5 of the cylinder 6 pushes the piston rod of the cylinder 6 forward, and the rear push block 11 connected to the piston rod moves forward. The spring sleeved on the step push rod pushes the front push block slide 15 to move forward, so that the front push block slide 15 pushes the blade tightly. As the piston rod continues to extend forward, the upper wedge surface of the rear push block 11 pushes the roller 12 upward, and the rotating clamping block 14 presses the blade, and the sensor 8 confirms the position of the cylinder 6 and the clamping state of the blade and provides feedback.

[0030] After the blade is rolled, the air intake of the front air nozzle 7 of the cylinder 6 pushes the piston rod of the cylinder 6 to retreat, and the movement of the rear push block 11 drives the rotating pressing block 14 to loosen the blade through the tension spring 20. As the piston rod of the dynamic cylinder 6 continues to retreat, the front push block slide 15 moves backward through the step push rod.

[0031] Matters not covered by the present invention are known technologies.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rolling chuck device for an automatic loading and unloading blade rolling mill, characterized by: The rolling chuck device for the automatic loading and unloading blade rolling mill comprises a base, a pressing component (3), a positioning component (4), and a power component (2); The base is used to install the clamping assembly (3), the positioning assembly (4), and the power assembly (2). A positioning boss is provided at the rear of the base for vertical guidance, which is connected to the piston rod of the machine tool via bolts. The positioning boss has a high-precision threaded hole for adjusting the vertical position of the chuck. The clamping assembly (3) comprises guide plates (9) at both ends, a rear push block (11) assembly, a front push block assembly, a step push rod, and a tension spring; a group of guide plates (9) is used for sliding guidance of the front push block assembly and the rear push block (11) assembly, the front push block assembly and the rear push block (11) assembly are connected by a step push rod with a spring, and relative movement can be generated between the front push block assembly and the rear push block (11) assembly, and a tension spring (20) between the rotating clamping block (14) and the rear push block (11) ensures that the wedge surface of the rear push block (11) fits the roller (12); The backward block assembly is connected to the piston rod of the cylinder (6) in the power assembly (2) through the piston connecting rod (10) and the latch pin (19); the roller (12) is connected to the rotary pressing block (14) through the pin shaft (13); and the rotary pressing block (14) is connected to the forward push block slide (15) through the rotating pin (16).

2. The rolling chuck device for the automatic loading and unloading blade rolling mill according to claim 1 is characterized in that: The positioning assembly (4) is composed of a positioning block (22), a side block (25), a side adjustment pad (24), a bottom adjustment pad and a sensor (8); the positioning block (22) is connected to the base by a screw, the positioning block (22) is used for positioning the blade process table, the side block (25) is used for horizontal positioning of the blade process table, the side adjustment pad (24) is used for horizontal adjustment of the blade process table, and the bottom adjustment pad is used to rotate the gap between the pressing block (14) and the positioning block (22). A sensor (8) is installed in the positioning block (22) to confirm whether the blade is correctly installed in the positioning block (22).

3. The rolling chuck device for the automatic loading and unloading blade rolling mill according to claim 1 is characterized in that: The power assembly (2) comprises a cylinder (6), an air nozzle and a sensor (8); the cylinder (6) is fixed to a base by bolts, and two air nozzles are installed on the cylinder (6) and connected to a machine tool air source for pushing the piston of the cylinder (6); the position sensor (8) is installed on the side wall of the cylinder (6), receives a signal from a magnetic ring on the piston of the cylinder (6), determines the position state of the piston rod of the cylinder (6) and provides feedback to ensure rolling safety.

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