阅读说明：本技术 一种端齿零件的腔体磨粒流加工用夹具 (Clamp for machining cavity abrasive flow of end tooth part ) 是由 王文俊 王翔 刘岑 朱棒 李玉婷 何嘉民 张永辉 于 2020-07-29 设计创作，主要内容包括：本发明公开了一种端齿零件的腔体磨粒流加工用夹具,包括用于与端齿零件的上端齿配合的上导流板、用于与所述端齿零件的下端齿配合的下导流柱以及可置于所述端齿零件内腔中的中间导流柱；所述中间导流柱的周部设有用于与所述端齿零件的内腔形成折线流道的导流斜面。本发明所提供的腔体磨粒流加工用夹具,利用所述中间导流柱以及所述导流斜面的设置,能够在所述端齿零件的内腔内形成折线流道,便于磨料能顺着折线流道加工零件,加工效果好,结构合理,操作方便。(The invention discloses a clamp for processing cavity abrasive flow of an end tooth part, which comprises an upper guide plate, a lower guide column and a middle guide column, wherein the upper guide plate is used for being matched with upper end teeth of the end tooth part; the periphery of the middle guide column is provided with a guide inclined plane which is used for forming a broken line flow passage with the inner cavity of the end tooth part. According to the clamp for processing the cavity abrasive flow, the middle guide column and the guide inclined plane are arranged, a broken line flow channel can be formed in the inner cavity of the end tooth part, abrasive can process the part along the broken line flow channel conveniently, the processing effect is good, the structure is reasonable, and the operation is convenient.)

1. The clamp for machining the cavity abrasive flow of the end tooth part is characterized by comprising an upper guide plate (16) matched with the upper end teeth of the end tooth part (19), a lower guide column (12) matched with the lower end teeth of the end tooth part (19) and a middle guide column (14) capable of being placed in an inner cavity of the end tooth part (19); the periphery of the middle guide column (14) is provided with a guide inclined plane which is used for forming a broken line flow passage with the inner cavity of the end tooth part (19).

2. The jig for abrasive flow machining of cavity of end-tooth member according to claim 1, wherein the guide slopes comprise an upper guide slope on an upper portion of the intermediate guide pillar (14) and a lower guide slope on a lower portion of the intermediate guide pillar (14).

3. The jig for abrasive flow machining of a cavity of an end-tooth part according to claim 2, wherein the upper flow-guiding bevel and the lower flow-guiding bevel are both circular table surfaces, and a cylindrical transition surface is provided between the upper flow-guiding bevel and the lower flow-guiding bevel.

4. The jig for abrasive flow machining of cavity of an end-tooth component according to any one of claims 1 to 3, wherein the bottom of the upper deflector (16) is provided with an upper end-tooth abutment portion (16-1) capable of pressing the upper end-tooth, and an upper end-tooth crest groove (16-2) and an upper end-tooth bottom groove (16-3) located on both sides of the upper end-tooth abutment portion (16-1), the upper end-tooth crest groove (16-2) and the tooth crest of the upper end-tooth form a flow passage therebetween, and the upper end-tooth bottom groove (16-3) and the tooth bottom of the upper end-tooth form a flow passage therebetween.

5. The jig for abrasive flow machining of cavity of an end-tooth component according to any one of claims 1 to 3, wherein the lower deflector has a lower end-tooth abutment portion (12-1) on the top thereof for pressing the lower end-tooth, and a lower end tooth crest groove (12-2) and a lower end tooth bottom groove (12-3) on both sides of the lower end-tooth abutment portion (12-1), wherein the lower end tooth crest groove (12-2) forms a flow passage with the tooth crest of the lower end-tooth, and the lower end tooth bottom groove (12-3) forms a flow passage with the tooth bottom of the lower end-tooth.

6. The jig for machining a flow of cavity abrasive particles of an end-tooth part according to any one of claims 1 to 3, characterized in that the intermediate flow guiding pillar (14) and the lower flow guiding pillar (12) are both aluminum members.

7. The clamp for processing the cavity abrasive flow of the end tooth part according to any one of claims 1 to 3, characterized by further comprising an upper support cylinder (2), a middle support cylinder (6) and a lower support cylinder (7) which are sequentially arranged from top to bottom, wherein the inner wall of the middle support cylinder (6) is provided with a middle pressing ring capable of pressing the periphery of the upper part of the end tooth part (19), and the inner wall of the lower support cylinder (7) is provided with a lower pressing ring capable of pressing the periphery of the lower part of the end tooth part (19).

8. The clamp for processing the cavity abrasive flow of the end tooth part according to claim 7, further comprising a cover plate (1) positioned at the upper part of the upper branch cylinder (2), a bottom plate (9) positioned at the lower part of the lower branch cylinder (7), and a lower protective sleeve (11) positioned between the lower flow guide column (12) and the bottom plate (9); the cover plate (1) is arranged between the upper supporting cylinders (2), the upper supporting cylinders (2) are arranged between the middle supporting cylinders (6), the middle supporting cylinders (6) are arranged between the lower supporting cylinders (7) and the lower supporting cylinders (7) are arranged between the lower supporting cylinders (7) and the bottom plate (9) are provided with circular steps.

9. The jig for cavity abrasive flow machining of an end tooth part according to claim 7, characterized in that a lifting bolt (8) is provided on the periphery of the upper surface of the bottom plate (9), and handle components for taking are provided on the side walls of the upper branch cylinder (2), the middle branch cylinder (6) and the lower branch cylinder (7).

10. The clamp for machining the cavity abrasive flow of the end-tooth part according to claim 7, wherein the lower protective sleeve (11) is connected with the bottom plate (9) through a lower hexagon socket head cap screw (10), the lower guide pillar (12) is connected with the lower protective sleeve (11) through a middle hexagon socket head cap screw (13), and the middle guide pillar (14) is connected with the lower guide pillar (12) through an upper hexagon socket head cap screw (15).

Technical Field

The invention relates to the field of end tooth part machining, in particular to a clamp for machining cavity abrasive flow of an end tooth part.

Background

In the field of aviation, when some end tooth parts generally need abrasive flow process machining, a machining surface is a rotary cavity formed by combining a cavity and an end tooth, the cross section of the cavity is an asymmetric section, a formed abrasive channel is nonlinear, and changes along with the change of the shape of the cavity, so that the abrasive path is difficult to control. In addition, a flow passage formed after the upper end teeth and the lower end teeth of the part are meshed is small, namely, a gap formed after the upper end teeth and the lower end teeth are meshed is small, and the risk of abrasive material blockage exists.

Disclosure of Invention

The invention aims to provide a clamp for machining a cavity abrasive flow of an end tooth part, which meets the technological requirements of machining the cavity abrasive flow of the cavity part, and has the advantages of convenient operation and good machining effect.

In order to achieve the purpose, the invention provides the following technical scheme:

a clamp for processing cavity abrasive flow of an end tooth part comprises an upper guide plate, a lower guide column and a middle guide column, wherein the upper guide plate is used for being matched with upper end teeth of the end tooth part; the periphery of the middle guide column is provided with a guide inclined plane which is used for forming a broken line flow passage with the inner cavity of the end tooth part.

Preferably, the guide slopes include an upper guide slope located on an upper portion of the middle guide pillar and a lower guide slope located on a lower portion of the middle guide pillar.

Preferably, the upper diversion inclined plane and the lower diversion inclined plane are both circular table surfaces, and a cylindrical transition surface is arranged between the upper diversion inclined plane and the lower diversion inclined plane.

Preferably, the bottom of the upper deflector is provided with an upper end tooth abutting portion capable of pressing the upper end tooth, and an upper end tooth crest groove and an upper end tooth bottom groove which are located on two sides of the upper end tooth abutting portion, the upper end tooth crest groove and the tooth crest of the upper end tooth can form a flow channel, and the upper end tooth bottom groove and the tooth bottom of the upper end tooth can form a flow channel.

Preferably, the top of the lower deflector is provided with a lower end tooth abutting portion capable of pressing the lower end tooth, and a lower end tooth crest groove and a lower end tooth bottom groove which are located on two sides of the lower end tooth abutting portion, the lower end tooth crest groove and the tooth crest of the lower end tooth can form a flow channel, and the lower end tooth bottom groove and the tooth bottom of the lower end tooth can form a flow channel.

Preferably, the middle guide pillar and the lower guide pillar are both aluminum parts.

Preferably, the device also comprises an upper support cylinder, a middle support cylinder and a lower support cylinder which are sequentially arranged from top to bottom, wherein a middle compression ring which can be compressed on the periphery of the upper part of the end tooth part is arranged on the inner wall of the middle support cylinder, and a lower compression ring which can be compressed on the periphery of the lower part of the end tooth part is arranged on the inner wall of the lower support cylinder.

Preferably, the device further comprises a cover plate positioned at the upper part of the upper support, a bottom plate positioned at the lower part of the lower support and a lower protective sleeve positioned between the lower guide pillar and the bottom plate; the cover plate is arranged between the upper supporting cylinders, the upper supporting cylinders are arranged between the middle supporting cylinders, the middle supporting cylinders are arranged between the lower supporting cylinders, and the lower supporting cylinders are arranged between the bottom plate.

Preferably, the peripheral part of the upper surface of the bottom plate is provided with lifting bolts, and the side walls of the upper branch cylinder, the middle branch cylinder and the lower branch cylinder are provided with handle assemblies for taking.

Preferably, the lower protective sleeve is connected with the bottom plate through a lower inner hexagonal cylindrical screw, the lower guide column is connected with the lower protective sleeve through a middle inner hexagonal cylindrical screw, and the middle guide column is connected with the lower guide column through an upper inner hexagonal cylindrical screw.

The clamp for processing the cavity abrasive flow of the end tooth part comprises an upper guide plate, a lower guide column and a middle guide column, wherein the upper guide plate is used for being matched with the upper end teeth of the end tooth part; the periphery of the middle guide column is provided with a guide inclined plane which is used for forming a broken line flow passage with the inner cavity of the end tooth part. According to the clamp for processing the cavity abrasive flow, the middle guide column and the guide inclined plane are arranged, a broken line flow channel can be formed in the inner cavity of the end tooth part, abrasive can process the part along the broken line flow channel conveniently, the processing effect is good, the structure is reasonable, and the operation is convenient.

In a preferred embodiment, the bottom of the upper deflector is provided with an upper end tooth abutting portion capable of pressing the upper end tooth, and an upper end tooth crest groove and an upper end tooth bottom groove located on two sides of the upper end tooth abutting portion, the upper end tooth crest groove and the tooth crest of the upper end tooth can form a flow channel, and the upper end tooth bottom groove and the tooth bottom of the upper end tooth can form a flow channel. According to the arrangement, the flow channel between the tooth tops of the upper end tooth top groove and the upper end tooth is arranged, the upper end tooth bottom groove can be arranged with the flow channel between the tooth bottoms of the upper end tooth, the flow channel at the position of the end tooth is increased, the grinding materials can be rapidly fed into the part cavity to form a processing cycle under the condition of double pipes, and the blocking phenomenon is prevented from occurring.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an end tooth component;

FIG. 2 is a schematic view of an assembly structure of one embodiment of a fixture for abrasive flow machining of a cavity of an end tooth component according to the present invention;

FIG. 3 shows the flow direction of the abrasive flow during the machining process of the fixture for machining the cavity abrasive flow of the end tooth component according to the present invention;

FIG. 4-1 is a cross-sectional view of the lower guide post of the fixture of FIG. 1;

FIG. 4-2 is a top view of the lower guide post of the fixture of FIG. 1;

FIG. 5-1 is a cross-sectional view of the upper deflector column of the fixture of FIG. 1;

FIG. 5-2 is a top view of the upper deflector column of the fixture of FIG. 1;

fig. 6-1 is a cross-sectional view of the intermediate guide post of the clamp of fig. 1;

fig. 6-2 is a top view of the intermediate guide post of the fixture of fig. 1;

wherein: a cover plate-1; an upper branch tube-2; a combined handle-3; a first cylindrical pin-4; a second cylindrical pin-5; a middle branch tube-6; a lower branch tube-7; lifting ring screws-8; a bottom plate-9; a lower hexagon socket head cap screw-10; a lower protective sleeve-11; a lower guide column-12; a lower end tooth abutment-12-1; a tooth top groove-12-2 at the lower end; a lower end tooth bottom groove-12-3; a middle inner hexagonal cylindrical screw-13; a middle flow guide column-14; an upper inner hexagonal cylindrical screw-15; an upper deflector-16; an upper end tooth abutment-16-1; a tooth top groove-16-2 at the upper end; a groove-16-3 at the bottom of the upper end tooth; a washer-17; top screw-18; end tooth element-19.

Detailed Description

The core of the invention is to provide the clamp for processing the cavity abrasive flow of the end tooth part, the clamp for processing the cavity abrasive flow meets the process requirement of processing the cavity abrasive flow of the cavity part, the operation is convenient, and the processing effect is good.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, fig. 1 is a schematic structural view of an end tooth component; FIG. 2 is a schematic view of an assembly structure of one embodiment of a fixture for abrasive flow machining of a cavity of an end tooth component according to the present invention; FIG. 3 shows the flow direction of the abrasive flow during the machining process of the fixture for machining the cavity abrasive flow of the end tooth component according to the present invention; FIG. 4-1 is a cross-sectional view of the lower guide post of the fixture of FIG. 1; FIG. 4-2 is a top view of the lower guide post of the fixture of FIG. 1; FIG. 5-1 is a cross-sectional view of the upper deflector column of the fixture of FIG. 1; FIG. 5-2 is a top view of the upper deflector column of the fixture of FIG. 1; fig. 6-1 is a cross-sectional view of the intermediate guide post of the clamp of fig. 1; fig. 6-2 is a top view of the intermediate guide post in the fixture of fig. 1.

In this embodiment, the cavity abrasive stream machining fixture for the end-tooth part includes an upper baffle 16, an intermediate baffle column 14, and a lower baffle column 12.

Wherein, the upper deflector 16 is used for matching with the upper end teeth of the end tooth part 19, and a flow channel is arranged between the upper deflector 16 and the upper end teeth; the lower guide column 12 is used for matching with the lower end teeth of the end tooth part 19, and a flow channel is arranged between the lower guide column 12 and the lower end teeth; the middle guide column 14 can be arranged in the inner cavity of the end tooth part 19, the periphery of the middle guide column 14 is provided with a guide inclined plane which is used for forming a broken line flow channel with the inner cavity of the end tooth part 19, and a flow channel between the upper guide plate 16 and the upper end tooth, a flow channel between the middle guide column 14 and the inner cavity of the end tooth part 19 and a flow channel between the lower guide column 12 and the lower end tooth are communicated.

The clamp for processing the cavity abrasive flow provided by the invention can form a broken line flow channel in the inner cavity of the end tooth part 19 by utilizing the arrangement of the middle guide column 14 and the guide inclined plane, so that an abrasive can process the part along the broken line flow channel conveniently, and the clamp has the advantages of good processing effect, reasonable structure and convenience in operation.

Further, the guide slopes include an upper guide slope located at an upper portion of the middle guide pillar 14 and a lower guide slope located at a lower portion of the middle guide pillar 14. Specifically, a first V-shaped flow channel is formed by the lower flow guide inclined surface of the middle flow guide column 14 and the inner side of the bottom of the end tooth part 19, and a second V-shaped flow channel is formed by the upper flow guide inclined surface of the middle flow guide column 14 and the inner side of the upper portion of the end tooth part 19, so that the abrasive particle flow can flow along the two V-shaped flow channels, and the abrasive particle flow conforms to the shape of the inner cavity of the end tooth part 19. Of course, the angle and size of the upper and lower deflector ramps should conform to the shape of the inner cavity of the end tooth member 19.

Further, the upper diversion inclined plane and the lower diversion inclined plane are both circular table surfaces, that is, the upper end and the lower end of the middle diversion column 14 are respectively circular table-shaped, and a cylindrical transition surface is arranged between the upper diversion inclined plane and the lower diversion inclined plane, as shown in fig. 6-1.

Specifically, an arc chamfer is arranged between the lower diversion inclined plane and the cylindrical transition surface, and the axial height of the lower diversion inclined plane is smaller than that of the upper diversion inclined plane.

On the basis of the above embodiments, the bottom of the upper deflector 16 is provided with an upper tooth abutting portion 16-1 capable of pressing the upper tooth, and an upper tooth crest groove 16-2 and an upper tooth bottom groove 16-3 located on both sides of the upper tooth abutting portion 16-1, the upper tooth crest groove 16-2 and the tooth crest of the upper tooth can form a flow passage, and the upper tooth bottom groove 16-3 and the tooth bottom of the upper tooth can form a flow passage. Specifically, the upper-end tooth abutment portion 16-1 may abut between two adjacent upper-end teeth.

According to the arrangement, the flow channel at the position of the end tooth is increased through the arrangement of the flow channel between the upper end tooth top groove 16-2 and the tooth top of the upper end tooth and the arrangement of the flow channel between the upper end tooth bottom groove 16-3 and the tooth bottom of the upper end tooth, and the grinding materials can rapidly enter the cavity of the part to form a processing cycle under the action of the double pipes, so that the blocking phenomenon is prevented.

On the basis of the above embodiments, the top of the lower deflector is provided with a lower end tooth abutting portion 12-1 capable of pressing the lower end tooth, and a lower end tooth crest groove 12-2 and a lower end tooth bottom groove 12-3 located on both sides of the lower end tooth abutting portion 12-1, the lower end tooth crest groove 12-2 and the tooth crest of the lower end tooth can form a flow channel, and the lower end tooth bottom groove 12-3 and the tooth bottom of the lower end tooth can form a flow channel. Specifically, the lower end tooth abutment portion 12-1 may abut between two adjacent lower end teeth.

Above-mentioned setting, through the runner setting between the addendum of lower extreme addendum recess 12-2 and lower extreme tooth to and lower extreme tooth bottom recess 12-3 can with equal to the runner setting between the tooth bottom of lower extreme tooth, increase the runner passageway of end tooth position, the double-barrelled abrasive material of ensureing can get into the inside processing cycle that forms of part cavity rapidly, prevents that blocking phenomenon from taking place.

On the basis of the above embodiments, the middle guide pillar 14 and the lower guide pillar 12 are both made of aluminum. The arrangement is that the friction force between the aluminum material and the abrasive is small, so that the time for the abrasive to stay in the runner can be reduced, and the abrasive can be accelerated to pass through. Preferably, the material 45 steel is used for other parts of the clamp.

On the basis of each embodiment, the support device further comprises an upper support cylinder 2, a middle support cylinder 6 and a lower support cylinder 7 which are sequentially arranged from top to bottom, wherein a middle compression ring capable of being compressed on the periphery of the upper part of the end tooth part 19 is arranged on the inner wall of the middle support cylinder 6, and a lower compression ring capable of being compressed on the periphery of the lower part of the end tooth part 19 is arranged on the inner wall of the lower support cylinder 7, so that stable support is realized.

On the basis of the above embodiments, the utility model further comprises a cover plate 1 positioned at the upper part of the upper branch cylinder 2, a bottom plate 9 positioned at the lower part of the lower branch cylinder 7, and a lower protective sleeve 11 positioned between the lower guide pillar 12 and the bottom plate 9; circular ring steps are arranged between the cover plate 1 and the upper support barrel 2, between the upper support barrel 2 and the middle support barrel 6, between the middle support barrel 6 and the lower support barrel 7 and between the lower support barrel 7 and the bottom plate 9.

Specifically, the cover plate 1 and the bottom plate 9 of the clamp are in direct contact with the equipment cylinder body respectively, sealing is achieved, the leakage phenomenon does not exist in work, the sealing requirement is met, the abrasion of the clamp and a workpiece caused by tiny leakage is avoided, and a good machining effect is guaranteed. Moreover, the whole structure of the clamp adopts a modularized design and is divided into 5 layers, the cover plate 1, the upper support cylinder 2, the middle support cylinder 6, the lower support cylinder 7 and the bottom plate 9 are sequentially arranged from top to bottom, and the connection between the layers adopts a seam allowance form.

In addition to the above embodiments, the peripheral portion of the upper surface of the bottom plate 9 is provided with the eyebolt 8, and the side walls of the upper support tube 2, the middle support tube 6 and the lower support tube 7 are provided with the handle assembly for taking.

Specifically, the handle assembly comprises a combined handle 3, a first cylindrical pin 4 and a second cylindrical pin 5, and the combined handle 3 can be locked in two vertical directions by the first cylindrical pin 4 and the second cylindrical pin 5, so that an operator can take the combined handle conveniently.

On the basis of the above embodiments, the lower protective sleeve 11 is connected with the bottom plate 9 through a lower hexagon socket head cap screw 10, the lower guide column 12 is connected with the lower protective sleeve 11 through a middle hexagon socket head cap screw 13, and the middle guide column 14 is connected with the lower guide column 12 through an upper hexagon socket head cap screw 15; further, the upper baffle 16 is connected with the middle baffle column 14 through a top screw 18 and a gasket 17. The socket head cap screws do not occupy too much space when in use, the effect is good, and of course, in actual use, other screws can be replaced by the socket head cap screws, and the socket head cap screws are not limited to socket head cap screws provided by the embodiment.

In one embodiment, the use of the clamp is as follows:

the fixture is placed on an equipment workbench, a lower protective sleeve 11, a lower guide post 12 and a bottom plate 9 can be assembled in advance, the bottom plate 9 is in close contact with the end face of an abrasive cylinder under the equipment, an end tooth part 19 is installed in a tool body according to an assembly drawing, a middle guide post 14 and an upper guide plate 16 are installed, the part is compressed through a top screw 18, an upper cover plate 1 is installed, and finally the abrasive cylinder on the equipment is started, so that the whole tool is compressed and sealed, a sealed processing flow channel is formed integrally with the tool, and abrasive flow processing is completed.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The jig for machining a cavity abrasive flow of an end-tooth component according to the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.