Blisk positioning and clamping device

Abstract

The utility model relates to the technical field of machining, and discloses a blisk positioning and clamping device which comprises a base, the upper end of the base is connected with a supporting seat, a blisk workpiece is located at the upper end of the supporting seat, the upper end of the supporting seat is connected with a hydraulic expansion sleeve supporting ring, and hydraulic supporting rods are evenly distributed on the circumference of the upper end of the hydraulic expansion sleeve supporting ring. Hydraulic cylinders are distributed on the circumference of the upper end of the base and located on the inner side of the supporting base, and the output end of each hydraulic cylinder is rotationally connected with a clamping jaw. Through the synergistic effect of a hydraulic system and a mechanical structure, efficient and accurate positioning and clamping of the blisk are achieved, the deformation problem of the outer side, the inner side and multiple positions of the upper portion of the blisk part in the machining process is solved, and the device has the advantages of being compact in structure, easy and convenient to operate, high in positioning accuracy, good in machining stability and the like. The method is suitable for the automatic production process of the aeroengine blisk.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to an integral blade disk positioning and clamping device. Background Art

[0002] As a key component, the machining accuracy and consistency of the aircraft engine blisk are crucial to engine performance.

[0003] In traditional machining processes, the use of universal clamping mechanisms often leads to easy deformation of parts. Each clamping operation requires tedious part alignment and auxiliary support adjustment, which is not only time-consuming but also leads to significant part deformation, making it difficult to ensure precision and resulting in a high defective product rate. Therefore, it is particularly important to develop a blisk clamping device that can efficiently and accurately position and effectively suppress deformation. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an integral blade disk positioning and clamping device, which effectively solves the problems raised in the above background.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an integral blade disk positioning and clamping device, comprising a base, the upper end of the base being connected to a support seat, the blade disk workpiece being located at the upper end of the support seat, the upper end of the support seat being connected to a hydraulic expansion sleeve support ring, the upper end of the hydraulic expansion sleeve support ring being evenly distributed with hydraulic support rods on the circumference, the upper end of the base being circumferentially distributed with hydraulic cylinders, the circumferentially distributed hydraulic cylinders being located inside the support seat, and the output end of each hydraulic cylinder being rotatably connected to a clamping claw;

[0006] The middle part of the upper end of the support seat is connected to the chassis, the middle part of the upper end of the chassis is fixedly connected to a fixing rod, a spring is provided on the outer sleeve of the fixing rod, the upper end of the spring is connected to a shaft sleeve, an intermediate support platform is provided on the outer sleeve, support columns are symmetrically provided on both sides below the intermediate support platform, the lower ends of the support columns are connected to the support seat, and the upper ends of the support columns are connected to the support rod;

[0007] The upper end of the fixing rod is threadedly connected with a locking rod, and the upper part of the locking rod is sleeved with an auxiliary pressing plate.

[0008] Preferably, a hydraulic cavity is provided inside the hydraulic expansion sleeve support ring, a hydraulic oil channel is opened on the side wall of the base, the hydraulic cavity is connected to the hydraulic oil channel, and a hydraulic control valve is installed on the upper end of the base, the hydraulic control valve is connected to the hydraulic oil channel for adjusting and controlling the hydraulic system.

[0009] Preferably, the lower end of the auxiliary pressure plate is connected to an upper contact ring, the upper contact ring contacts the upper end surface of the blade disk workpiece, and the upper end of the auxiliary pressure plate is symmetrically connected to a pull ring.

[0010] Preferably, the upper end of the intermediate support platform is connected to an intermediate contact ring, and the intermediate contact ring contacts the lower end surface of the middle position inside the blade disk workpiece.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. This utility model, through the synergistic effect of the hydraulic system and mechanical structure, achieves efficient and precise positioning and clamping of the integral blade disk, and solves the problem of deformation of the integral blade disk parts at multiple locations such as the outside, inside, and top during the processing. The device has the advantages of compact structure, simple operation, high positioning accuracy, and good processing stability. It is suitable for the automated production process of aircraft engine integral blade disks;

[0013] 2. This new type significantly improves the positioning accuracy and consistency of the integral blade during the processing, effectively suppresses part deformation, reduces the defective rate, simplifies the clamping process, shortens the processing cycle, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached figure:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 For this utility model Figure 2 AA cross-sectional structural diagram;

[0019] Figure 4 This is a schematic diagram of the compacting structure of the blade disk workpiece of the utility model;

[0020] Figure 5 This is a cross-sectional view of a blade disk workpiece of the present invention;

[0021] In the figure: 1. Base; 2. Support seat; 3. Hydraulic expansion sleeve support ring; 4. Hydraulic support rod; 5. Hydraulic cylinder; 6. Claw; 7. Chassis; 8. Fixed rod; 9. Spring; 10. Bushing; 11. Intermediate support platform; 12. Support column; 13. Support rod; 14. Locking rod; 15. Auxiliary pressure plate; 16. Hydraulic control valve; 17. Upper contact ring; 18. Pull ring; 19. Intermediate contact ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Embodiment 1, by Figure 1-Figure 5 The utility model includes a base 1, the upper end of the base 1 is connected to a support base 2, the blade disk workpiece is located at the upper end of the support base 2, the upper end of the support base 2 is connected to a hydraulic expansion sleeve support ring 3, the upper end of the hydraulic expansion sleeve support ring 3 is evenly distributed with hydraulic support rods 4, the upper end of the base 1 is circumferentially distributed with hydraulic cylinders 5, the circumferentially distributed hydraulic cylinders 5 are located inside the support base 2, and the output end of each hydraulic cylinder 5 is rotatably connected to a claw 6;

[0024] The middle part of the upper end of the support seat 2 is connected to the chassis 7, and the middle part of the upper end of the chassis 7 is fixedly connected to the fixing rod 8. The outer part of the fixing rod 8 is provided with a spring 9, and the upper end of the spring 9 is connected to the shaft sleeve 10. The outer part of the shaft sleeve 10 is provided with an intermediate support platform 11. Support columns 12 are symmetrically provided on both sides below the intermediate support platform 11. The lower end of the support column 12 is connected to the support seat 2, and the upper end of the support column 12 is connected to the support rod 13;

[0025] The upper end of the fixing rod 8 is threadedly connected to a locking rod 14, and an auxiliary pressing plate 15 is sleeved on the upper part of the locking rod 14;

[0026] A hydraulic chamber is provided inside the hydraulic expansion sleeve support ring 3, and a hydraulic oil channel is provided on the side wall of the base 1. The hydraulic chamber is connected to the hydraulic oil channel, and a hydraulic control valve 16 is installed on the upper end of the base 1. The hydraulic control valve 16 is connected to the hydraulic oil channel for regulating and controlling the hydraulic system.

[0027] The lower end of the auxiliary pressure plate 15 is connected to an upper contact ring 17, which contacts the upper end surface of the blade disk workpiece. The upper end of the auxiliary pressure plate 15 is symmetrically connected to a pull ring 18. The setting of the upper contact ring 17 can reduce the wear on the blade disk workpiece. The setting of the pull ring 18 facilitates the upward lifting of the auxiliary pressure plate 15.

[0028] The upper end of the intermediate support platform 11 is connected to an intermediate contact ring 19 , which contacts the lower end surface of the intermediate position inside the blade disk workpiece. The provision of the intermediate contact ring 19 can reduce wear on the blade disk workpiece.

[0029] Working principle: initial positioning and clamping:

[0030] Place the blisk workpiece on the support base 2, ensuring that the workpiece is stable and centered. Start the hydraulic system, and the hydraulic cylinder 5 starts working, driving the clamping claw 6 to flip and press the inner flange at the lower end of the blisk workpiece from the inside. This step achieves the initial positioning and clamping of the workpiece, preventing movement or deformation during subsequent processing.

[0031] Lateral support:

[0032] Under the regulation of the hydraulic control valve 16, the hydraulic chamber in the hydraulic expansion sleeve support ring 3 begins to be pressurized. As the pressure increases, the hydraulic support rods 4 gradually extend and evenly support the outer side of the blisk workpiece. This step further enhances the stability of the workpiece during machining and effectively suppresses deformation of the outer side.

[0033] Middle support:

[0034] The middle support platform 11 maintains a certain elasticity under the action of the spring 9. When the blisk workpiece is placed, the middle support platform 11 contacts the lower end surface of the middle position inside the workpiece through the middle contact ring 19.

[0035] Upper compression:

[0036] The auxiliary pressure plate 15 is connected to the fixed rod 8 through the locking rod 14 and can be adjusted up and down to a certain height. After the integral blade disk workpiece is initially positioned and clamped, the locking rod 14 is rotated to lower the auxiliary pressure plate 15 to a suitable height and contact the upper end surface of the workpiece through the upper contact ring 17. At this time, the auxiliary pressure plate 15 presses the upper part of the workpiece under the action of the locking rod 14. This step realizes auxiliary pressing of the upper part of the workpiece and further enhances the stability of the workpiece.

[0037] Through the above-mentioned multi-point support and clamping steps, the integral blade disk workpiece has been firmly clamped in the device. At this time, the processing equipment can be started to process the workpiece. During the processing, since the workpiece is supported and clamped at multiple points, deformation and vibration can be effectively suppressed, thereby improving processing accuracy and consistency.

Claims

1. A blisk positioning and clamping device, comprising a base (1), characterized in that: The upper end of the base (1) is connected to a support base (2), the blade disk workpiece is located at the upper end of the support base (2), the upper end of the support base (2) is connected to a hydraulic expansion sleeve support ring (3), the upper end of the hydraulic expansion sleeve support ring (3) is evenly distributed with hydraulic support rods (4), the upper end of the base (1) is circumferentially distributed with hydraulic cylinders (5), the circumferentially distributed hydraulic cylinders (5) are located inside the support base (2), and the output end of each hydraulic cylinder (5) is rotatably connected to a clamping claw (6); The middle part of the upper end of the support seat (2) is connected to a chassis (7), the middle part of the upper end of the chassis (7) is fixedly connected to a fixing rod (8), the outer part of the fixing rod (8) is provided with a spring (9), the upper end of the spring (9) is connected to a shaft sleeve (10), the outer part of the shaft sleeve (10) is provided with an intermediate support platform (11), support columns (12) are symmetrically provided on both sides below the intermediate support platform (11), the lower end of the support column (12) is connected to the support seat (2), and the upper end of the support column (12) is connected to a support rod (13); The upper end of the fixing rod (8) is threadedly connected with a locking rod (14), and the upper part of the locking rod (14) is sleeved with an auxiliary pressing plate (15).

2. The blisk positioning and clamping device according to claim 1, characterized in that: A hydraulic cavity is provided inside the hydraulic expansion sleeve support ring (3), a hydraulic oil channel is provided on the side wall of the base (1), the hydraulic cavity is communicated with the hydraulic oil channel, and a hydraulic control valve (16) is installed on the upper end of the base (1), the hydraulic control valve (16) is communicated with the hydraulic oil channel, and is used to adjust and control the hydraulic system.

3. The blisk positioning and clamping device according to claim 1, characterized in that: The lower end of the auxiliary pressure plate (15) is connected to an upper contact ring (17), the upper contact ring (17) contacts the upper end surface of the blade disk workpiece, and the upper end of the auxiliary pressure plate (15) is symmetrically connected to a pull ring (18).

4. The blisk positioning and clamping device according to claim 1, characterized in that: The upper end of the intermediate support platform (11) is connected to an intermediate contact ring (19), and the intermediate contact ring (19) contacts the lower end surface at the middle position inside the blade disk workpiece.

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