CN-224223564-U - Abrasive particle flow machining tool for removing remelting layer and inner cavity residues of turbine blade air film holes

Abstract

The utility model discloses an abrasive flow machining tool for removing remelting layers and inner cavity residues of turbine blade air film holes, which relates to the technical field of polishing of remelting layers and inner cavity residues of turbine blade air film holes and aims to solve the problems that the conventional polishing operation is inconvenient to operate, the polishing effect is to be improved, meanwhile, polishing equipment is inconvenient to disassemble and overhaul, and the practicability is to be improved. The polishing device has the advantages that the workpiece can be quickly and conveniently disassembled and assembled, the polishing effect of the turbine blade can be improved, and the polishing device is high in practicability.

Inventors

• LI PENGFEI
• ZOU CHENG
• GUO WANJUN
• SUN SHUO
• LI XINCHUAN
• LIU FEIYANG

Assignees

• 集萃翌拓科技(苏州)有限公司

Dates

Publication Date

20260512

Application Date

20250520

Claims (6)

1. 1. The abrasive flow machining tool for removing the remelting layer and inner cavity residues of the turbine blade air film holes comprises an abrasive flow equipment lower cylinder (7), an abrasive flow equipment upper cylinder (9), an upper template (1) and a lower template (4), and is characterized in that the upper template (1) is installed in an installation position of the abrasive flow equipment upper cylinder (9), the lower template (4) is installed in an installation position of the abrasive flow equipment lower cylinder (7), a grinding and polishing barrel (2) is installed between the upper template (1) and the lower template (4), a lower template material guide opening (41) is formed in the middle position of the lower template (4), a leaf crown sealing rubber block (22) is buckled and installed on the inner bottom end face of the grinding and polishing barrel (2), material guide holes corresponding to the lower template material guide opening (41) are formed in the middle position of the leaf crown sealing rubber block (22) and the bottom end face of the grinding and polishing barrel (2), and an upper template material guide opening (13) is formed in the upper template (1).
2. 2. The abrasive flow machining tool for removing the remelting layer and the inner cavity residues of the turbine blade air film holes is characterized in that an abrasive flow equipment lower cylinder piston (8) is arranged at the middle position of the abrasive flow equipment lower cylinder (7), and a cavity between the abrasive flow equipment lower cylinder piston (8) and the lower die plate (4) is filled with abrasive materials (6).
3. 3. The abrasive particle flow machining tool for removing the remelting layer and the inner cavity residues of the turbine blade air film holes is characterized in that a blade compression block (14) is fixedly arranged in the middle of the inner end face of the upper die plate (1), and a turbine blade (5) is clamped and arranged between the blade compression block (14) and a blade crown sealing rubber block (22).
4. 4. The abrasive particle stream processing tool for removing the remelting layer and the inner cavity residues of the turbine blade air film holes, which is disclosed in claim 1, is characterized in that four support columns (3) are arranged between the upper die plate (1) and the lower die plate (4), the upper ends of the support columns (3) are fixedly connected with the upper die plate (1) through die locking bolts (12), and positioning holes are formed in the lower end faces of the support columns (3).
5. 5. The abrasive particle flow machining tool for removing the remelting layer and the inner cavity residues of the turbine blade air film holes is characterized in that an upper template sealing rubber strip (11) is arranged at the edge position of the upper end face of the upper template (1), a lower template sealing rubber ring (43) is arranged at the edge position of the lower end face of the lower template (4), and a polishing barrel sealing rubber ring (21) is arranged at the upper end of the polishing barrel (2).
6. 6. The abrasive particle stream processing tool for removing the remelting layer and the inner cavity residues of the turbine blade air film holes, as set forth in claim 1, is characterized in that a lower template positioning lug (42) is integrally connected to the lower end surface of the lower template (4), and the lower template positioning lug (42) is clamped in the installation position of the lower cylinder (7) of the abrasive particle stream equipment.

Description

Abrasive particle flow machining tool for removing remelting layer and inner cavity residues of turbine blade air film holes Technical Field The utility model relates to the technical field of remelting layers of gas film holes of turbine blades and polishing residues in inner cavities, in particular to an abrasive particle flow machining tool for removing the remelting layers of the gas film holes of the turbine blades and residues in the inner cavities. Background With the improvement of the front air inlet temperature of the turbine of the aero-engine and the gas turbine, the turbine blade often needs to be provided with a complex internal cooling channel, and an electric spark machining mode is used for machining air film holes on the blade body so as to introduce cooling air, thereby improving the high temperature resistance of the turbine blade. When the gas film hole is processed by electric spark, a remelting layer with a certain thickness is formed on the hole wall, which brings adverse effect on the fatigue performance of the blade, and the remelting layer needs to be removed or reduced to be within a certain thickness by an abrasive particle flow or other processing methods. Turbine blades, especially oriented and monocrystalline turbine blades, react to some extent with ceramic cores at high temperatures during casting, which reaction layer cannot be completely removed during subsequent core removal, and in addition, small amounts of residual cores and reactants may adhere to the surfaces of the inner cavities of the blade, which residues adversely affect the service performance of the turbine blade, and if the inner cavities require the preparation of a coating, the residues are also very detrimental to the bonding performance of the coating. The existing polishing operation is inconvenient to operate, the polishing effect needs to be improved, meanwhile, the polishing equipment is inconvenient to disassemble, assemble and overhaul, and the practicability needs to be improved. Disclosure of utility model The utility model aims to provide an abrasive particle flow machining tool for removing a remelting layer and inner cavity residues of a gas film hole of a turbine blade, which can be used for rapidly and conveniently disassembling and assembling workpieces, can improve the polishing effect of the turbine blade, and is high in practicability. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a get rid of abrasive grain stream processing frock of turbine blade air film hole remelting layer and inner chamber residue, includes that abrasive grain stream equipment lower jar, abrasive grain stream equipment upper cylinder, cope match-plate pattern, lower bolster, the cope match-plate pattern is installed in the installation position of abrasive grain stream equipment upper cylinder, the lower bolster is installed in the installation position of abrasive grain stream equipment lower cylinder, install the grinding and polishing bucket between cope match-plate pattern and the lower bolster, the intermediate position department of lower bolster is provided with the lower bolster guiding hole, the inside bottom terminal surface of grinding and polishing bucket is gone up the buckle and is installed leaf crown sealing rubber piece, all be provided with the guiding hole that corresponds with lower bolster guiding hole position on the bottom terminal surface of leaf crown sealing rubber piece's intermediate position department and grinding and polishing bucket, be provided with the cope match-plate pattern guiding hole on the cope match-plate pattern. Through adopting above-mentioned technical scheme, can be fast convenient dismouting work piece, can improve polishing effect simultaneously, the practicality is strong. Further, an abrasive flow device lower cylinder piston is arranged at the middle position of the abrasive flow device lower cylinder, and a cavity between the abrasive flow device lower cylinder piston and the lower template is filled with abrasive. By adopting the technical scheme, the polishing operation can be realized by using the abrasive. Further, a blade compression block is fixedly arranged at the middle position of the inner end face of the upper die plate, and turbine blades are clamped and arranged between the blade compression block and the blade crown sealing rubber block. By adopting the technical scheme, the position stability of the turbine blade can be improved. Further, four support columns are installed between the upper die plate and the lower die plate, the upper ends of the support columns are fixedly connected with the upper die plate through mode locking bolts, and positioning holes are formed in the lower end faces of the support columns. Through adopting above-mentioned technical scheme, can effectually improve the job stabilization nature of whole frock. Further, an upper template s