CN213970597U

CN213970597U - Abrasive flow clamp

Info

Publication number: CN213970597U
Application number: CN202022565773.8U
Authority: CN
Inventors: 糜志豪; 唐晨翔; 张乐安; 刘慧渊
Original assignee: Falcontech Co ltd
Current assignee: Falcontech Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-17
Anticipated expiration: 2030-11-09

Abstract

The utility model belongs to the technical field of polishing equipment, a abrasive flow anchor clamps is disclosed, it includes the top cap, the top cap includes the portion of inserting, the guiding gutter has been seted up to the terminal surface of portion of inserting, the opening that feeds through in the guiding gutter has been seted up to the lateral wall of portion of inserting, the tank bottom of guiding gutter extends to the opening and forms arc water conservancy diversion face, the portion of inserting is rotationally worn to locate in the top passageway of work piece, the notch of guiding gutter is towards the bottom passageway of work piece, the opening feeds through in the annular inner chamber of work piece, the abrasive material can flow in from the bottom passageway, flow in the annular inner chamber along arc water conservancy diversion face. The utility model provides an abrasive flow anchor clamps not only helps shortening polishing time, improves work efficiency, can also guarantee the homogeneity of each position roughness.

Description

Abrasive flow clamp

Technical Field

The utility model belongs to the technical field of polishing equipment, especially, relate to an abrasive flow anchor clamps.

Background

3D printing is a rapid prototyping technique, also known as additive manufacturing, which is a technique that builds objects by using bondable materials such as powdered metal or plastic and the like and printing layer by layer on the basis of a digital model file.

In the 3D printed workpiece, there are many workpiece cavities requiring high roughness, but since the 3D printed workpiece itself has a roughness greater than Ra16, the workpiece cavities need to be polished. As shown in fig. 1 and 2, a workpiece 100 is provided with a vertically through flow channel, an annular inner cavity 103 is circumferentially arranged around the flow channel and is communicated with the flow channel, a top channel 102 is arranged above a connection part of the flow channel and the annular inner cavity 103, and a bottom channel 101 is arranged below the flow channel. The annular inner cavity 103 of the workpiece 100 has a complex structure, the surface to be polished of the annular inner cavity 103 is relatively dispersed, and the existing method is to introduce the abrasive to each part of the annular inner cavity 103 at the same time, so that the roughness of each part of the surface to be polished is easily uneven, and the polishing time is long.

Therefore, a need exists for an abrasive flow clamp that solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an abrasive flow anchor clamps not only helps shortening polishing time, improves work efficiency, can also guarantee the homogeneity of each position roughness.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an abrasive flow anchor clamps, includes the top cap, the top cap includes the portion of inserting, the guiding gutter has been seted up to the terminal surface of portion of inserting, the lateral wall of portion of inserting set up communicate in the opening of guiding gutter, the tank bottom of guiding gutter extends to the opening forms arc water conservancy diversion face, the portion of inserting rotationally wears to locate in the top passageway of work piece, the notch orientation of guiding gutter the bottom passageway of work piece, the opening communicate in the annular inner chamber of work piece, and the abrasive material can be followed bottom passageway flows in, along arc water conservancy diversion face flows in the annular inner chamber.

Preferably, the arc-shaped flow guide surface and the inner wall of the annular inner cavity are in smooth transition.

Preferably, the polishing device further comprises a protective cylinder, the protective cylinder penetrates through the bottom channel, and the inner wall of the protective cylinder is flush with the surface to be polished on the bottom channel.

Preferably, the workpiece machining device further comprises a base, wherein a through hole is formed in the base, the base is arranged at the bottom of the workpiece, and the through hole is communicated with the bottom channel in an aligning mode.

Preferably, the base comprises a base body and an insertion portion connected to the base body, the through hole penetrates through the base body and the insertion portion, the insertion portion is inserted into the bottom channel and abuts against the protective sleeve, and the base body is arranged at the bottom of the workpiece.

Preferably, the diameter of the through hole is not larger than the inner diameter of the casing.

Preferably, the top cover further comprises a cover plate, the cover plate is connected to one end, away from the diversion trench, of the insertion portion, and the cover plate is arranged on the top of the workpiece.

Preferably, the cover plate and the insertion portion are integrally formed.

Preferably, the insertion portion is rotatably inserted through the cover plate.

Preferably, one end of the insertion portion, which is away from the diversion trench, is a holding end, and the holding end protrudes from the cover plate.

The utility model has the advantages that:

the utility model provides an abrasive flow clamp, wherein the insertion part of the top cover is provided with an arc-shaped flow guide surface, abrasive can flow in from a bottom channel, flow out from an opening along the arc-shaped flow guide surface and flow into an annular inner cavity of a workpiece, and under the guiding action of the arc-shaped flow guide surface, the abrasive can be intensively guided to a small part of the annular inner cavity, so that the small part can be quickly polished; and the insertion part can be rotatably arranged in the top channel of the workpiece in a penetrating way, so that the opening faces to different parts of the annular inner cavity by rotating the insertion part, and the annular inner cavity is completely polished. Because the standard roughness can be quickly achieved for each small part, the polishing efficiency and the polishing effect of the whole workpiece can be improved. Further, in the case where any small portion of the roughness does not meet the standard, it is sufficient to polish only the portion.

Drawings

FIG. 1 is a schematic diagram of a conventional workpiece to be polished;

FIG. 2 is a cross-sectional view of a prior art workpiece to be polished;

fig. 3 is a schematic diagram illustrating an operation of an abrasive flow jig according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of an abrasive particle flow jig according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a top cover according to an embodiment of the present invention;

FIG. 6 is an enlarged view at B in FIG. 4;

fig. 7 is a schematic structural diagram of a base according to a first embodiment of the present invention;

fig. 8 is an enlarged view at a in fig. 4.

In the figure:

100. a workpiece; 101. a bottom channel; 1011. a surface to be polished; 102. a top channel; 103. an annular inner cavity; 104. a discharge channel;

1. a top cover; 2. protecting the cylinder; 3. a base;

11. an insertion portion; 12. a cover plate; 31. an insertion part; 32. a through hole;

111. an opening; 112. an arc-shaped flow guide surface.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly and can include, for example, a mounted connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

As shown in fig. 3 to 5, the embodiment provides an abrasive flow fixture, which includes a top cover 1, the top cover 1 includes an insertion portion 11, a diversion trench is disposed on an end surface of the insertion portion 11, an opening 111 communicated with the diversion trench is disposed on a side wall of the insertion portion 11, a bottom of the diversion trench extends to the opening 111 to form an arc diversion surface 112, the insertion portion 11 rotatably penetrates through a top passage 102 of a workpiece 100, a notch of the diversion trench faces a bottom passage 101 of the workpiece 100, the opening 111 is communicated with an annular inner cavity 103 of the workpiece 100, and an abrasive can flow in from the bottom passage 101 and flow into the annular inner cavity 103 along the arc diversion surface 112.

In the abrasive flow fixture provided by the embodiment, the insertion part 11 of the top cover 1 is provided with the arc-shaped flow guide surface 112, the abrasive can flow in from the bottom channel 101, flow out from the opening 111 along the arc-shaped flow guide surface 112, and flow into the annular inner cavity 103 of the workpiece 100, and under the guiding action of the arc-shaped flow guide surface 112, the abrasive can be intensively guided to a small part of the annular inner cavity 103, so that the small part can be quickly polished; and the insert 11 is rotatably disposed through the top passageway 102 of the workpiece 100, the annular cavity 103 can be completely polished by rotating the insert 11 so that the opening 111 faces different portions of the annular cavity 103. Since the standard roughness can be quickly achieved for each small portion, the polishing efficiency and effect of the entire workpiece 100 can be improved. Further, in the case where any small portion of the roughness does not meet the standard, it is sufficient to polish only the portion.

As shown in fig. 1 and 2, the annular inner cavity 103 is provided with a discharge passage 104 communicated with the outside, and the abrasive entering the annular inner cavity 103 flows out through the discharge passage 104.

As shown in FIG. 2, the bottom channel 101 of the workpiece 100 has a section 1011 to be polished at the end near the annular cavity 103, and the inner diameter of the section 1011 to be polished is smaller than that of the non-polished surface below, forming a round corner at the junction of the two. As shown in fig. 4 and 6, in order to prevent the abrasive entering from the bottom channel 101 from damaging the fillet, the abrasive flow jig provided in the present embodiment further includes a casing 2, and the casing 2 is inserted into the bottom channel 101. The inner wall of the casing 2 is flush with the surface 1011 to be polished on the bottom channel 101. The non-polishing surface is filled to the surface to be polished 1011 to be flush, and the fillet is hidden, so that the fillet is protected, and the workpiece 100 is prevented from being damaged. In addition, the casing 2 can protect the non-polished surface of the corresponding bottom passage 101 from being polished.

Specifically, the arc-shaped flow guide surface 112 and the inner wall of the annular inner cavity 103 are in smooth transition. The smooth transition can avoid the abrasive from affecting the non-polished surface of the workpiece 100, and can achieve a better guiding effect, further improving the polishing effect on the annular inner cavity 103.

The abrasive flow fixture provided by the embodiment further comprises a base 3, the base 3 is provided with a through hole 32, the base 3 is arranged at the bottom of the workpiece 100, and the through hole 32 is aligned and communicated with the bottom channel 101. The base 3 enables the workpiece 100 to be mounted on a work table, and the through-hole 32 is used for penetration of an abrasive, thereby allowing the abrasive to flow into the bottom channel 101.

As shown in fig. 4, 7 and 8, the base 3 includes a base body and an insertion portion 31 connected to the base body, the through hole 32 penetrates through the base body and the insertion portion 31, the insertion portion 31 is inserted into the bottom passage 101 and abuts against the casing 2, and the base body is disposed at the bottom of the workpiece 100. The provision of the insert 31 facilitates alignment of the base 3 with the bottom channel 101 to enable quick installation of the workpiece 100.

Optionally, the diameter of the through hole 32 is not greater than the inner diameter of the casing 2. The abrasive is prevented from hitting the connecting portion between the insertion portion 31 and the casing 2, so that the abrasive passing through the through-hole 32 can completely enter the casing 2. In the present embodiment, the diameter of the through hole 32 is the same as the inner diameter of the casing 2, and the inner walls thereof are adjacent and flush.

As shown in fig. 4 and 5, the top cover 1 further includes a cover plate 12, the cover plate 12 is connected to an end of the insertion portion 11 facing away from the guiding groove, and the cover plate 12 is disposed on the top of the workpiece 100. The width of the cover plate 12 is larger than the inner diameter of the top channel 102 and can abut against the top of the workpiece 100, so as to limit the position of the insertion portion 11 in the top channel 102 and ensure that the opening 111 is aligned with the annular cavity 103 when the cover plate 12 contacts the top of the workpiece 100.

Specifically, the cover plate 12 and the insertion portion 11 are integrally molded. The insert 11 is rotated by rotating the cover plate 12 so that the openings 111 are aligned with different portions of the annular cavity 103. The pressing device is used to apply a force to the cover plate 12 toward the workpiece 100 during polishing, and the workpiece 100 is fixed, thereby polishing the workpiece 100.

Example two

The embodiment provides an abrasive particle flow clamp, wherein parts which are the same as or correspond to the first embodiment are provided with the same reference numerals as the first embodiment. For the sake of simplicity, only the difference between the second embodiment and the first embodiment will be described, which is that the insertion portion 11 is rotatably inserted through the cover plate 12. The end of the insertion portion 11 away from the guiding groove is a holding end, and the holding end protrudes from the cover plate 12. The insertion part 11 can be rotated by holding the end without rotating the cover plate 12, so that the operation is more convenient.

Specifically, the insertion portion 11 is provided with two limiting portions at two sides of the cover plate 12, so that the cover plate 12 is limited between the two limiting portions; of course, the insertion portion 11 may be attached to the cover plate 12 by a bearing.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The abrasive flow clamp is characterized by comprising a top cover (1), wherein the top cover (1) comprises an insertion part (11), a guide groove is formed in the end face of the insertion part (11), an opening (111) communicated with the guide groove is formed in the side wall of the insertion part (11), the groove bottom of the guide groove extends to the opening (111) to form an arc-shaped guide surface (112), the insertion part (11) is rotatably arranged in a top channel (102) of a workpiece (100) in a penetrating mode, the groove opening of the guide groove faces a bottom channel (101) of the workpiece (100), the opening (111) is communicated with an annular inner cavity (103) of the workpiece (100), and abrasive can flow into the annular inner cavity (103) from the bottom channel (101) along the arc-shaped guide surface (112).

2. The abrasive particle flow clamp of claim 1, wherein said arcuate deflector surface (112) and an inner wall of said annular cavity (103) are smoothly blended.

3. The abrasive particle flow clamp according to claim 1, characterized by further comprising a protective cylinder (2), wherein the protective cylinder (2) is arranged in the bottom channel (101) in a penetrating way, and the inner wall of the protective cylinder (2) is flush with the surface (1011) to be polished on the bottom channel (101).

4. The abrasive particle flow clamp according to claim 3, further comprising a base (3), wherein a through hole (32) is formed in the base (3), the base (3) is arranged at the bottom of the workpiece (100), and the through hole (32) is aligned and communicated with the bottom channel (101).

5. The abrasive particle flow clamp according to claim 4, characterized in that the base (3) comprises a base body and an insertion portion (31) connected to the base body, the through hole (32) penetrates through the base body and the insertion portion (31), the insertion portion (31) is inserted into the bottom channel (101) and abuts against the casing (2), and the base body is arranged at the bottom of the workpiece (100).

6. Abrasive flow clamp according to claim 4, characterized in that the diameter of the through hole (32) is not larger than the inner diameter of the casing (2).

7. The abrasive particle flow clamp according to claim 1, characterized in that the top cover (1) further comprises a cover plate (12), the cover plate (12) being connected to the end of the insert part (11) facing away from the flow guide channel, the cover plate (12) being arranged on top of the workpiece (100).

8. The abrasive particle flow jig according to claim 7, characterized in that the cover plate (12) and the insert part (11) are integrally formed.

9. The abrasive particle flow clamp according to claim 7, characterized in that the insert part (11) is rotatably arranged through the cover plate (12).

10. The abrasive particle flow clamp according to claim 9, characterized in that the end of the insert part (11) facing away from the flow guiding groove is a gripping end, which protrudes from the cover plate (12).