CN219310257U

CN219310257U - Gear grinding clamp for turbine blade

Info

Publication number: CN219310257U
Application number: CN202320191372.1U
Authority: CN
Inventors: 邱红昌; 张红飞; 李健; 杜丽; 鄢佳琪; 吴名波; 孙俊伟
Original assignee: Chengdu Hehong Technology Co ltd
Current assignee: Chengdu Hehong Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-07
Anticipated expiration: 2033-02-01

Abstract

The utility model relates to the technical field of grinding processing of turbine blades, and particularly discloses a gear grinding clamp for turbine blades, which comprises the following components: the main board fixedly mounted on the grinding machine mounting plate and the sliding plate slidingly mounted on the main board are provided with a plurality of clamping assemblies used for clamping the turbine blades, a plurality of jacks are arranged on the sliding plate along the sliding direction, and a plurality of bolts capable of being inserted into/withdrawn from the jacks are arranged on the main board, so that the requirements on the large-scale grinding machine in the production of the turbine blades are reduced, and the production cost is reduced.

Description

Gear grinding clamp for turbine blade

Technical Field

The utility model relates to the technical field of grinding processing of turbine blades, in particular to a gear grinding clamp for turbine blades.

Background

In the production of turbine blades of an aircraft, grinding is generally required to be performed on the tenon tooth portions of the turbine blades by using a grinding machine, but the difference in length between different types of turbine blades is excessive, and the grinding machine of some types has limited stroke and cannot meet the grinding requirements of the turbine blades with various lengths.

Disclosure of Invention

The utility model aims to provide a gear grinding clamp for turbine blades, which reduces the requirement for a large-scale grinding machine in the production of turbine blades and reduces the production cost.

The embodiment of the utility model is realized by the following technical scheme:

a gear grinding fixture for a turbine blade, comprising: the device comprises a main board fixedly arranged on a grinder mounting plate and a sliding plate slidably arranged on the main board, wherein a plurality of clamping assemblies used for clamping turbine blades are arranged on the sliding plate, a plurality of jacks are arranged on the sliding plate along the sliding direction, and bolts capable of being inserted into/withdrawn from the jacks are arranged on the main board.

Further, a through hole for a bolt to pass through is formed in the main board, a limiting step is formed in the bolt, and a compression spring is installed on one side, far away from the main board, of the limiting step.

Further, a mounting block is arranged on the main board, and a limiting step and a compression spring are sleeved in the mounting block; the bolt is provided with a stop pin, and the mounting block is provided with a through groove for the stop pin to slide.

Further, at least 2 insertion holes are provided on both sides of the slide plate in the sliding direction.

Further, a wedge block is arranged on the sliding plate and sleeved in a chute on the main plate.

Further, the length of the wedge block is greater than the length of the chute.

Further, stroke blocks are installed at both ends of the wedge block.

Further, the clamping assembly includes: a plurality of positioning pins fixedly arranged on the sliding plate and a pressing plate hinged on the sliding plate.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

by using the utility model, a worker can slide the sliding plate into the central hole along the sliding groove, send part of the turbine blade into the central hole, and only the tenon tooth part to be processed is positioned outside the central hole, so that the processing requirement of the grinding machine with limited cutter stroke on the turbine blade with overlarge length is met, the requirement on a large-scale grinding machine in actual production is reduced, and the production cost is reduced;

the sliding plate needs to slide, the bolt is pulled out by a worker and is positioned in the through hole, the sliding plate slides into/out of the central hole, and under the action of the compression spring, the bolt is inserted into the jack to complete the fixing work of the sliding plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of the present device according to the present utility model slid into a central bore;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of the installation of the latch according to the present utility model;

FIG. 4 is a schematic view of a structure of the present device clamping turbine blades;

icon: 1-main board, 11-bolt, 111-stop pin, 112-limit step, 12-mounting block, 121-through groove, 2-sliding plate, 21-jack, 3-compression spring, 4-wedge block, 5-turbine blade, 6-stroke block, 7-locating pin, 8-pressing plate, 9-mounting plate, 91-center hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present embodiment provides a gear grinding jig for a turbine blade, including: the main board 1 fixedly installed on the grinder mounting plate 9 and the sliding plate 2 slidably installed on the main board 1 are provided with a plurality of clamping assemblies for clamping the turbine blades 5 on the sliding plate 2, a plurality of insertion holes 21 are formed in the sliding plate 2 along the sliding direction, and a plurality of bolts 11 capable of being inserted into/withdrawn from the insertion holes 21 are arranged on the main board 1.

In specific use, the sliding plate 2 is positioned outside the central hole 91 on the mounting plate 9, the turbine blade 5 is mounted on the sliding plate 2 through the clamping assembly, the wedge block 4 is mounted on the sliding plate 2, and the wedge block 4 is sleeved in the chute on the main plate 1.

By using the utility model, a worker can slide the sliding plate 2 into the central hole 91 along the sliding groove, send part of the turbine blade 5 into the central hole 91, and only the tenon tooth part to be processed is positioned outside the central hole 91, so that the processing requirement of the grinding machine with limited tool travel on the turbine blade 5 with oversized length is met, the requirement on a large grinding machine in actual production is reduced, and the production cost is reduced.

Further, the length of the wedge-shaped block 4 is larger than that of the chute, and the stroke blocks 6 are arranged at two ends of the wedge-shaped block 4 to prevent the sliding plate 2 from sliding out of the chute.

Referring to fig. 2 and 3, a through hole through which the latch 11 passes is provided in the main board 1, a limit step 112 is provided in the latch 11, and a compression spring 3 is installed at a side of the limit step 112 away from the main board 1. The main board 1 is provided with a mounting block 12, and the limiting step 112 and the compression spring 3 are sleeved in the mounting block 12; the latch 11 is provided with a stopper pin 111, the mounting block 12 is provided with a through groove 121 in which the stopper pin 111 slides, and at least 2 insertion holes 21 are provided on both sides of the slide plate 2 in the sliding direction.

When the sliding plate 2 needs to slide, a worker pulls the stop pin 111 out of the through groove 121 and rotates the stop pin 111 by a certain angle, so that the stop pin 111 is blocked outside the through groove 121; after the sliding plate 2 slides into/out of the central hole 91, the stop pin 111 is rotated and reset, and under the action of the compression spring 3, the plug 11 is inserted into the insertion hole 21, thereby completing the fixing work of the sliding plate 2.

In the present embodiment, the sliding plate 2 is located in the central hole 91, the grinding machine grinds the turbine blade 5, and in this state, four bolts 11 are provided to fix the sliding plate 2; the sliding plate 2 is positioned outside the central hole 91, a worker can disassemble and assemble the turbine blade 5, and two bolts 11 are arranged in the state to fix the sliding plate 2, so that the whole machining process is ensured to be stable and safe.

Referring to fig. 4, it will be appreciated that the clamping assembly includes: the positioning pins 7 are fixedly arranged on the sliding plate 2 at a plurality of positions and the pressing plate 8 is hinged on the sliding plate 2, the positioning pins 7 are used for supporting the special-shaped turbine blades 5, the positioning pins 7 are also arranged on the pressing plate 8, and the arc-shaped positioning blocks which are tightly attached to the turbine blades 5 are arranged on the pressing plate 8.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gear grinding fixture for a turbine blade, comprising: the device comprises a main board (1) fixedly mounted on a grinder mounting plate (9) and a sliding board (2) slidably mounted on the main board (1), wherein a plurality of clamping assemblies used for clamping turbine blades (5) are arranged on the sliding board (2), a plurality of jacks (21) are arranged on the sliding board (2) along the sliding direction, and bolts (11) capable of being inserted into/withdrawn from the jacks (21) are arranged on the main board (1).

2. Gear grinding clamp for turbine blades according to claim 1, characterized in that a through hole for the plug pin (11) to pass through is arranged on the main board (1), a limit step (112) is arranged on the plug pin (11), and a compression spring (3) is arranged on one side of the limit step (112) far from the main board (1).

3. The gear grinding clamp of the turbine blade according to claim 2, characterized in that a mounting block (12) is arranged on the main plate (1), and the limiting step (112) and the compression spring (3) are sleeved in the mounting block (12); a blocking pin (111) is arranged on the plug pin (11), and a through groove (121) for sliding the blocking pin (111) is arranged on the mounting block (12).

4. Gear grinding clamp for turbine blades according to claim 1, characterized in that at least 2 receptacles (21) are provided on both sides of the sliding plate (2) in the sliding direction.

5. Gear grinding clamp for turbine blades according to claim 1, characterized in that a wedge block (4) is mounted on the sliding plate (2), the wedge block (4) being sleeved in a chute on the main plate (1).

6. Tooth grinding jig for turbine blades according to claim 5, characterized in that the wedge block (4) has a length which is greater than the length of the runner.

7. Tooth grinding jig for turbine blades according to claim 6, characterized in that at both ends of the wedge block (4) a stroke block (6) is mounted.

8. The turbine blade tooth grinding jig of claim 1, wherein the clamping assembly comprises: a plurality of positioning pins (7) fixedly arranged on the sliding plate (2) and a pressing plate (8) hinged on the sliding plate (2).