CN213970699U - Clamp - Google Patents

Abstract

The utility model discloses an anchor clamps, it belongs to grit stream processing technology field, and it includes upper end cover, lower end cover and stopper. The upper end cover is provided with a first accommodating groove, the lower end cover is provided with a second accommodating groove and an abrasive outlet channel which are communicated, the lower end cover is butted with the upper end cover, the first accommodating groove and the second accommodating groove form an accommodating cavity, the impeller is accommodated in the accommodating cavity, the upper convex section and the upper cover plate are accommodated in the first accommodating groove, the lower cover plate and the lower convex section are accommodated in the second accommodating groove, and the lower convex section is communicated with the abrasive outlet channel; the abrasive material inlet channel is arranged on the upper end cover and/or the lower end cover and is communicated with the accommodating cavity; one end of the limiting block is connected to the upper end cover or the lower end cover, and the other end of the limiting block extends into the accommodating cavity and can be inserted between the two blades of the impeller to limit the impeller. The clamp can polish different parts of the impeller in a targeted manner for multiple times, so that the inner cavity of the impeller can be polished comprehensively and efficiently, and the clamp is simple in structure, low in manufacturing cost, economical and practical.

Description

Clamp

Technical Field

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

Background

The roughness of a 3D printing workpiece is generally larger than Ra16, and the inner flow channel of many workpieces needs higher roughness requirement, so the inner flow channel of the workpiece needs to be polished. Polishing with a stream of abrasive particles is a commonly used and effective way. As shown in fig. 1 and 2, an impeller 1 has a plurality of blades 13, and further includes an upper cover plate 11 and a lower cover plate 12, the upper cover plate 11 is provided with an upper convex section 111, and the lower cover plate 12 is provided with a lower convex section 121, so that the inner cavity structure is complex, when abrasive flow polishing is performed, the whole inner cavity cannot be completely polished to a proper position, a workpiece needs to be polished for a plurality of times, and the problem that polishing is not performed in a proper position may exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anchor clamps realizes polishing comprehensively, high-efficiently the inner chamber of work piece.

As the conception, the utility model adopts the technical proposal that:

the utility model provides an anchor clamps for polish inner chamber of impeller, the impeller includes upper cover plate and lower apron, the upper cover plate is equipped with protruding section, the apron is equipped with protruding section down, anchor clamps include:

the upper end cover is provided with a first accommodating groove;

the lower end cover is provided with a second accommodating groove and an abrasive outlet channel which are communicated, the lower end cover is butted with the upper end cover, the first accommodating groove and the second accommodating groove form an accommodating cavity, the impeller is accommodated in the accommodating cavity, the upper convex section and the upper cover plate are accommodated in the first accommodating groove, the lower cover plate and the lower convex section are accommodated in the second accommodating groove and the abrasive outlet channel, and the lower convex section is communicated with the abrasive outlet channel;

the abrasive material inlet channel is arranged on the upper end cover and/or the lower end cover and communicated with the accommodating cavity;

and one end of the limiting block is connected with the upper end cover or the lower end cover, and the other end of the limiting block extends into the accommodating cavity and can be inserted between the two blades of the impeller so as to limit the impeller.

Optionally, the abrasive inlet passage opens at the junction of the upper and lower end caps.

Optionally, the upper end cover and the lower end cover are respectively and correspondingly provided with an upper groove and a lower groove, one end of each of the upper groove and the lower groove is communicated with the accommodating cavity, the other end of each of the upper groove and the lower groove is communicated with the outside, and the upper groove and the lower groove are communicated in an aligned mode to form the abrasive material inlet channel.

Optionally, a first groove is formed in the upper end cover, a second groove is correspondingly formed in the lower end cover, the first groove and the second groove are communicated with the accommodating cavity, the first groove and the second groove are communicated with each other in an aligned mode to form an installation space, one end of the limiting block is located in the installation space, and the other end of the limiting block can extend to two of the impellers between the blades.

Optionally, the upper end cover, the limiting block and the lower end cover simultaneously penetrate through a positioning hole, and the positioning connecting piece penetrates through the positioning hole.

Optionally, the limiting block is of a sheet structure, and the sectional shape and size of the limiting block are consistent with the cross-sectional shape and size of the space between the two blades.

Optionally, the first receiving groove penetrates through the upper end cover and includes a large-diameter end groove and a small-diameter end channel which are communicated with each other.

Optionally, the upper end cap is seamlessly joined with the lower end cap.

Optionally, the device further comprises a connecting piece, and the upper end cover is connected with the lower end cover through the connecting piece.

Optionally, the upper end cover and the lower end cover are respectively provided with a first through hole and a second through hole, the first through hole is in alignment communication with the second through hole, and the connecting piece is simultaneously arranged through the first through hole and the second through hole.

The utility model has the advantages that:

the utility model provides an anchor clamps, stopper are inserted and are located between two arbitrary adjacent blades of impeller, make the impeller be fixed in the holding intracavity. Rotating the impeller at a certain angle, inserting the limiting block between other two adjacent blades, so that the impeller is fixed, and at the moment, the abrasive material inlet channel is aligned to the part, which is not polished by abrasive material flowing through, of the inner cavity of the impeller so as to polish the part. The impeller is rotated for many times and is fixed through the limiting block to polish, so that the inner cavity of the impeller is polished in all directions. Flow direction of abrasive: abrasive flow enters the accommodating cavity from the abrasive inlet channel, flows through the inner cavity of the impeller and finally flows out from the lower convex section through the abrasive outlet channel. The clamp can polish different parts of the impeller in a targeted manner for multiple times, so that the inner cavity of the impeller can be polished comprehensively and efficiently, and the clamp is simple in structure, low in manufacturing cost, economical and practical.

Drawings

FIG. 1 is a side view of a prior art impeller;

FIG. 2 is a schematic structural view of a prior art impeller;

fig. 3 is a schematic structural diagram of a clamp according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a lower end cover according to an embodiment of the present invention;

fig. 5 is a partial structural plan view of the clamp according to the embodiment of the present invention.

In the figure:

1. an impeller; 11. an upper cover plate; 111. an upper convex section; 12. a lower cover plate; 121. a lower convex section; 13. a blade;

2. an upper end cover; 22. an upper groove;

3. a lower end cover; 31. a second accommodating groove; 32. an abrasive outlet channel; 33. a lower groove; 34. a second groove; 35. a second through hole;

4. an abrasive inlet channel;

5. a limiting block;

6. a connecting member.

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 elements or elements having the same or similar functions throughout. 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 expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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.

The present embodiment provides a jig for polishing an inner cavity of an impeller 1, which is shown in fig. 3 to 5 and includes an upper end cap 2, a lower end cap 3, and a stopper 5. The upper end cover 2 is provided with a first accommodating groove, the lower end cover 3 is provided with a second accommodating groove 31 and an abrasive outlet channel 32 which are communicated, the lower end cover 3 is butted with the upper end cover 2, the first accommodating groove and the second accommodating groove 31 form an accommodating cavity, the impeller 1 is accommodated in the accommodating cavity, the upper convex section 111 and the upper cover plate 11 are accommodated in the first accommodating groove, the lower cover plate 12 and the lower convex section 121 are accommodated in the second accommodating groove 31, and the lower convex section 121 is communicated with the abrasive outlet channel 32; the abrasive material inlet channel 4 is arranged on the upper end cover 2 and/or the lower end cover 3 and is communicated with the accommodating cavity; one end of the limiting block 5 is connected to the upper end cover 2 or the lower end cover 3, and the other end of the limiting block extends into the accommodating cavity and can be inserted between the two blades 13 of the impeller 1 so as to limit the impeller 1. In the present embodiment, the cross-sectional area of the second receiving groove 31 is larger than that of the abrasive outlet passage 32, and the abrasive outlet passage 32 is not only used for passing the abrasive but also used for receiving the downward convex section 121.

The limiting block 5 is inserted between any two adjacent blades 13 of the impeller 1, so that the impeller 1 is fixed in the accommodating cavity. Rotating the impeller 1 at a certain angle, and inserting the limiting block 5 between the other two adjacent blades 13 to fix the impeller 1, wherein the abrasive material inlet passage 4 is aligned with the part of the inner cavity of the impeller 1 which is not polished by the flowing abrasive material, so as to polish the part. The impeller 1 is rotated for many times and fixed through the limiting block 5 to polish the inner cavity of the impeller 1 in all directions. Flow direction of abrasive: the abrasive flow enters the housing chamber from the abrasive inlet channel 4, flows through the inner chamber of the impeller 1 and finally flows out from the lower convex section 121 through the abrasive outlet channel 32. The clamp can be used for polishing different parts of the impeller 1 in a targeted manner for multiple times, so that the inner cavity of the impeller 1 can be polished comprehensively and efficiently, and the clamp is simple in structure, low in manufacturing cost, economical and practical.

As shown in fig. 3, the abrasive inlet passage 4 is opened at the joint of the upper end cover 2 and the lower end cover 3, so that the abrasive inlet passage 4 faces the inner cavity of the impeller 1, and the abrasive inlet passage is convenient to accurately enter the inner cavity of the impeller 1.

Further, the upper end cover 2 and the lower end cover 3 are respectively and correspondingly provided with an upper groove 22 and a lower groove 33, one end of each of the upper groove 22 and the lower groove 33 is communicated with the accommodating cavity, the other end of each of the upper groove 22 and the lower groove 33 is communicated with the outside, and the upper groove 22 and the lower groove 33 are communicated in an aligned mode to form the abrasive inlet channel 4. The arrangement is simple and has good structural stability.

Optionally, the upper end cap 2 is joined to the lower end cap 3 seamlessly, and the sealing performance is good, so as to avoid that when a gap exists, the abrasive flows into the non-polishing surface contacting the impeller 1 from the gap.

Further, seted up first recess on the upper end cover 2, second recess 34 has been seted up to lower end cover 3 correspondence, and first recess and second recess 34 all communicate in the holding chamber, and first recess and second recess 34 are adjusted well the intercommunication in order to form installation space, and the one end of stopper 5 is located installation space, and the other end can extend between two blades 13 of impeller 1. The limiting block 5 is located in the installation space, so that the space is saved, the assembly and disassembly are convenient, and the impeller 1 can be conveniently rotated to polish for multiple times.

Further, the locating hole is penetrated simultaneously to upper end cover 2, stopper 5 and lower end cover 3, and the locating hole is worn to locate by the positioning connection spare for the positioning connection spare is fixed in installation space with stopper 5, and when avoiding polishing atress, stopper 5 shifted.

Optionally, the limiting block 5 is a sheet structure, and the sectional shape and size of the limiting block 5 are consistent with the cross-sectional shape and size of the space between the two blades 13, so that the limiting block 5 is clamped between the two blades 13, and the impeller 1 is fixed firmly and cannot move.

Optionally, the first receiving groove penetrates through the upper end cap 2 and includes a large-diameter end groove and a small-diameter end channel which are communicated with each other. This arrangement is convenient for manufacturing, and in this embodiment, the upper convex section 111 is accommodated in the small-diameter end channel, and the upper cover plate 11 is accommodated in the large-diameter end groove.

Further, the fixture further comprises a connecting piece 6, the upper end cover 2 is connected with the lower end cover 3 through the connecting piece 6, and the impeller 1 is firmly clamped between the upper end cover 2 and the lower end cover 3 to form a firm whole. In the present embodiment, the connecting member 6 is a screw, and the head of the screw abuts against the end surface of the lower end cap 3, so as to not only perform the abutting fixing function, but also serve as a leg to support the clamp to stand.

Optionally, the upper end cap 2 and the lower end cap 3 are respectively provided with a first through hole and a second through hole 35, the first through hole and the second through hole 35 are communicated with each other, and the connecting member 6 penetrates through the first through hole and the second through hole 35 at the same time. In this embodiment, upper end cover 2 and lower end cover 3 are square piece, and four group's through-holes (first through-hole and second through-hole 35) are seted up in four apex angle departments of square piece, and wherein, a set of through-hole is as the locating hole, and connecting piece 6 is as the location connecting piece, and the mode is simple, the dismouting is convenient. Of course, the shape of the upper end cap 2 and the lower end cap 3 may be other shapes, and will not be described in detail.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A fixture for polishing an inner cavity of an impeller (1), the impeller (1) comprising an upper cover plate (11) and a lower cover plate (12), the upper cover plate (11) being provided with an upper convex section (111), the lower cover plate (12) being provided with a lower convex section (121), the fixture comprising:

the upper end cover (2), the upper end cover (2) is provided with a first containing groove;

the lower end cover (3) is provided with a second containing groove (31) and an abrasive outlet channel (32) which are communicated, the lower end cover (3) is butted with the upper end cover (2), the first containing groove and the second containing groove (31) form a containing cavity, the impeller (1) is contained in the containing cavity, the upper convex section (111) and the upper cover plate (11) are contained in the first containing groove, the lower cover plate (12) and the lower convex section (121) are contained in the second containing groove (31) and the abrasive outlet channel (32), and the lower convex section (121) is communicated with the abrasive outlet channel (32);

the abrasive material inlet channel (4) is arranged on the upper end cover (2) and/or the lower end cover (3) and is communicated with the accommodating cavity;

and one end of the limiting block (5) is connected with the upper end cover (2) or the lower end cover (3), and the other end of the limiting block extends into the accommodating cavity and can be inserted between the two blades (13) of the impeller (1) so as to limit the impeller (1).

2. A fixture according to claim 1, characterized in that the abrasive inlet channel (4) opens at the butt joint of the upper end cap (2) and the lower end cap (3).

3. The clamp according to claim 2, wherein the upper end cap (2) and the lower end cap (3) are respectively provided with an upper groove (22) and a lower groove (33), one end of each of the upper groove (22) and the lower groove (33) is communicated with the accommodating cavity, the other end of each of the upper groove (22) and the lower groove (33) is communicated with the outside, and the upper groove (22) and the lower groove (33) are aligned to form the abrasive inlet channel (4).

4. The clamp according to claim 1, wherein a first groove is formed in the upper end cover (2), a second groove (34) is correspondingly formed in the lower end cover (3), the first groove and the second groove (34) are both communicated with the accommodating cavity, the first groove and the second groove (34) are communicated in an aligned mode to form an installation space, one end of the limiting block (5) is located in the installation space, and the other end of the limiting block can extend between two blades (13) of the impeller (1).

5. The clamp according to claim 1, wherein the upper end cover (2), the limiting block (5) and the lower end cover (3) simultaneously penetrate through a positioning hole, and a positioning connecting piece penetrates through the positioning hole.

6. The clamp according to claim 1, characterized in that the stopper (5) is a sheet structure, and the sectional shape and size of the stopper (5) are consistent with the cross-sectional shape and size of the space between the two vanes (13).

7. The clamp according to claim 1, wherein the first receiving groove penetrates the upper end cap (2) and comprises a large-diameter end groove and a small-diameter end channel which are communicated with each other.

8. The clamp according to claim 1, characterized in that the upper end cap (2) is seamlessly joined with the lower end cap (3).

9. The clamp according to any one of claims 1 to 8, further comprising a connector (6), wherein the upper end cap (2) and the lower end cap (3) are connected by the connector (6).

10. The clamp according to claim 9, wherein the upper end cover (2) and the lower end cover (3) are respectively provided with a first through hole and a second through hole (35), the first through hole and the second through hole (35) are aligned and communicated, and the connecting piece (6) is simultaneously arranged through the first through hole and the second through hole (35).

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