Multi-part flat grinding device

Abstract

The utility model relates to the technical field of aviation machining, in particular to a multi-part flat lapping device. The device comprises a flat grinding base and a flat grinding plate, the flat grinding base is of a multi-step cube structure symmetrical in the thickness direction, and the multi-step cube structure is matched with appearance steps of the flat grinding part and used for determining the initial position of the flat grinding part. High platforms are arranged at two ends of the base in the length direction; a row of threaded mounting bottom holes are formed in the high platform in the width direction; the threaded mounting bottom hole is matched with a screw, and is contacted and fastened with the end surface of the flat grinding part; the flat grinding plate is of a cube structure and used for machining the flat face of the flat grinding part. According to the method of the embodiment of the utility model, the centering pin part is conveniently and quickly ground, a set of complete multi-part flat grinding device is formed, and the efficiency and the machining quality in the machining process are improved.

Description

Technical Field

[0001] This utility model relates to the field of aerospace machining technology, and in particular to a multi-part flat grinding device. Background Technology

[0002] The aerospace mechanical manufacturing field contains a large number of precision-fitting components. Due to the high-performance requirements of aerospace products, high demands are placed on the clearance fit of hydraulic valve products. In some types of components, the flat surface of the center pin needs to have a clearance fit with some other parts, while the flat surface has high requirements for flatness and parallelism. Currently, the finishing of flat surfaces is mainly done by manual lapping, which requires a high level of skill from the operator, and only one part can be processed at a time. Utility Model Content

[0003] The purpose of this invention is to propose a multi-part flat grinding device that is highly efficient and reliable, and can improve the processing quality and efficiency of products.

[0004] The technical solution of this utility model is:

[0005] A multi-part flat grinding device is provided, including a flat grinding base and a flat grinding plate;

[0006] The flat grinding base is a multi-step cuboid structure symmetrical along the thickness direction. The multi-step cuboid structure matches the outer steps of the flat grinding part and is used to determine the initial position of the flat grinding part.

[0007] The base has raised platforms at both ends along its length; a row of threaded mounting holes is opened on the raised platforms along its width; the threaded mounting holes are engaged with screws to contact and fasten the flat-lapped parts.

[0008] The flat grinding plate has a cuboid structure and is used to process the flat surfaces of flat grinding parts.

[0009] Furthermore, the flat-machined part has a stepped cylindrical structure with two centrally symmetrical flat surfaces at the small end face; after the flat-machined part is installed in the flat-machined base, the flat surface is closest to the center line.

[0010] Furthermore, the multi-step cuboid structure gradually decreases in height from the central plane outwards.

[0011] Furthermore, after installing the flat grinding base, the height of the flat surface of the flat grinding part should be greater than the height of the center plane of the flat grinding base.

[0012] Furthermore, after being installed in the flat grinding base, the unmachined flat end face of the flat grinding part needs to be in contact with and constrained by the side of the central cuboid of the flat grinding base.

[0013] Furthermore, the width of the flat grinding plate needs to be less than the sum of the length of the flat surface of two flat grinding parts and the width of the center plane of the flat grinding base.

[0014] This invention solves the problems of poor quality stability and slow efficiency in the flat grinding process of parts. The key to this process lies in designing a suitable flat grinding base according to the size of the parts. During the processing, multiple centering pins can be installed and fixed. The flat grinding plate contacts the centering pins and moves back and forth to complete the flat grinding process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a multi-part flat grinding device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the flat grinding base according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the component structure according to an embodiment of the present utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific arrangements and methods set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and apparatus without departing from the spirit of this utility model. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.

[0021] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] refer to Figures 1-3 , Figure 1 The tool assembly diagram shown is of a novel embodiment, including a flat grinding base 1, which is a symmetrical multi-step cuboid structure with a set of threaded mounting holes on each end face; a flat grinding plate 2, which is a cuboid structure; and a flat grinding part 3, which includes a flat surface structure for clearance fit with other parts, and the surface has strict clearance tolerance and flatness parallelism requirements. Figure 2 , Figure 3 The diagram shows a schematic of the flat grinding base and a schematic of the part structure of the novel embodiment, including a flat grinding base planar structure 4 and a planar structure 5; a part outer circular structure 6 and a flat surface structure 7, wherein the planar structure 4 is in contact with the outer circular structure 6, the planar structure 5 is in contact with the flat surface structure 7, and is finally fixed by threads.

[0023] This invention provides a multi-part flat grinding device. By using this tool, multiple centering pin parts can be placed and fixed on the flat grinding base. By using the flat grinding plate to reciprocate in contact with the flat surface of the parts, the flat grinding process of various parts can be completed.

[0024] Furthermore, the height of the flat surface of the flat-machined part must be greater than the height of the center plane of the flat-machined base;

[0025] Furthermore, the flat end face of the flat-machined part needs to be in contact with and constrained by the side of the central cuboid of the flat-machined base;

[0026] Furthermore, the length of the stepped circle of the flat-ground part needs to be less than or equal to the length of the stepped surface of the flat-ground base;

[0027] Furthermore, the width of the flat grinding plate needs to be less than the sum of the lengths of the flat surfaces of two flat grinding parts and the width of the center plane of the flat grinding base;

[0028] Furthermore, the flat-grinding part and the flat-grinding base are connected and fixed through threaded mounting holes on both ends of the flat-grinding base.

[0029] The method of using this tool includes the following steps:

[0030] S1, make the outer circle structure 6 of the part contact with the flat surface structure 4 of the flat grinding base, and make the flat surface structure 7 of the part contact with the flat surface structure 5 of the flat grinding base.

[0031] S2, the screw is fitted through the threaded hole on the end face of the flat grinding base, and then contacts and tightens with the end face of the centering pin part;

[0032] S3. Apply grinding paste to the flat surface of the part, bring the grinding plate into contact with the flat surface of the part and perform reciprocating motion to achieve the grinding clearance and geometric tolerance requirements.

[0033] This invention solves the problem of difficult operation during the installation of rubber rings, ensuring the efficiency and quality of rubber ring installation.

[0034] It should be noted that, without conflict, those skilled in the art can flexibly adjust the order of the above operation steps or flexibly combine the above steps as needed.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should be covered within the protection scope of this utility model.

Claims

1. A multi-part flat grinding device, characterized in that: Includes a flat grinding base (1) and a flat grinding plate (2); The flat grinding base is a multi-step cuboid structure symmetrical along the thickness direction. The multi-step cuboid structure matches the outer steps of the flat grinding part (3) and is used to determine the initial position of the flat grinding part (3). The base has raised platforms at both ends along its length; a row of threaded mounting holes is opened on the raised platforms along its width; the threaded mounting holes are engaged with screws to contact and fasten the end face of the flat-ground part (3); The flat grinding plate has a cuboid structure and is used to process the flat surfaces of flat grinding parts.

2. The apparatus according to claim 1, characterized in that: The flat-ground part has a stepped cylindrical structure with two centrally symmetrical flat surfaces at the small end face; after the flat-ground part is installed into the flat-ground base (1), the flat surface is closest to the center line.

3. The apparatus according to claim 1, characterized in that: The multi-step cuboid structure decreases in height from the central plane outwards.

4. The apparatus according to claim 1, characterized in that: After the flat grinding base (1) is installed, the height of the flat surface of the flat grinding part should be greater than the height of the center plane of the flat grinding base.

5. The apparatus according to claim 1, characterized in that: After being installed in the flat grinding base (1), the unprocessed flat end face of the flat grinding part needs to be in contact with the side of the central cuboid of the flat grinding base for constraint.

6. The apparatus according to claim 1, characterized in that: The width of the flat grinding plate needs to be less than the sum of the length of the flat surface of two flat grinding parts and the width of the center plane of the flat grinding base.

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