CN217224526U

CN217224526U - Clamp for machining inner wall of hemispherical thin-walled part

Info

Publication number: CN217224526U
Application number: CN202221150700.5U
Authority: CN
Inventors: 刘文强
Original assignee: Baoji Barrett Machinery Technology Co Ltd
Current assignee: Baoji Barrett Machinery Technology Co Ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-08-19
Anticipated expiration: 2032-05-13

Abstract

The utility model provides a hemisphere thin wall part anchor clamps for inner wall processing, be fixed in the fixed column on the lathe jack catch including clamp sleeve and lower extreme, spherical groove and hemisphere thin wall part adaptation are made in fixed column up end middle part, and the clamp sleeve is located the fixed column top to with the removable back that links firmly in fixed column upper end, be fixed in spherical groove after compressing tightly hemisphere thin wall part up end outer edge by the clamp sleeve, the diameter of clamp sleeve upper end through-hole is not less than the biggest processing diameter of hemisphere thin wall part. The utility model discloses an at the spherical groove of fixed column up end processing and hemisphere thin wall part adaptation to in pressing from both sides the tight spherical groove that is fixed in with hemisphere thin wall part clamp through the removable clamp sleeve that is fixed in the fixed column upper end, realize the tight fixed of clamp of hemisphere thin wall part, guarantee the tight uniformity of fixed position of hemisphere thin wall part clamp, thereby improve the machining precision of globular cavity thin wall floater, reduce the processing cost of globular cavity thin wall floater, improve machining efficiency.

Description

Fixture for machining inner wall of hemispherical thin-walled part

Technical Field

The utility model belongs to the technical field of frock clamp, concretely relates to anchor clamps are used in processing of hemisphere thin wall part inner wall.

Background

The clamp is used for fixing a processing object in the mechanical manufacturing process, so that the processing object occupies a correct detection or processing position, and therefore parts difficult to position can be conveniently processed, and the detection or processing precision is improved; for a spherical hollow thin-wall floating ball, the commonly adopted method is as follows: the method comprises the steps of dividing a processed solid sphere into two parts to form a solid hemisphere, turning an inner hole of a floating ball on the end plane of the hemisphere to form a hollow thin-wall hemisphere, butting the two hollow thin-wall hemispheres, welding the two hollow thin-wall hemispheres into a whole by laser welding to form the hollow thin-wall floating ball, wherein when the inner hole is processed in the solid hemisphere, the solid hemisphere has the problems of high clamping difficulty and difficult positioning due to the fact that the outer contour of the solid hemisphere is of a hemispherical structure, and if the clamping consistency of each time has difference, the processing quality of the hollow floating ball is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides an anchor clamps are used in processing of hemisphere thin wall part inner wall, through the spherical groove of processing with hemisphere thin wall part adaptation at the fixed column up end, and press from both sides the tight spherical groove of being fixed in with hemisphere thin wall part clamp through the removable clamp sleeve that is fixed in the fixed column upper end, realize the tight fixed of clamp of hemisphere thin wall part, guarantee the tight uniformity of fixed position of clamp of hemisphere thin wall part, thereby improve the machining precision of globular cavity thin wall floater, reduce the processing cost of globular cavity thin wall floater, the machining efficiency is improved, moreover, the steam generator is simple in structure, the novel design, the clamping is dismantled convenient and fast, and good reliability and stability.

The utility model adopts the technical proposal that: the clamp for machining the inner wall of the hemispherical thin-wall part comprises a clamping sleeve and a fixing column, wherein the lower end of the fixing column is fixed on a lathe clamping jaw, a spherical groove is formed in the middle of the upper end face of the fixing column, the hemispherical thin-wall part is matched in the spherical groove, the clamping sleeve is located above the fixing column and is detachably fixedly connected with the upper end of the fixing column, the outer edge of the upper end face of the hemispherical thin-wall part is tightly pressed by the clamping sleeve and then fixed in the spherical groove, and the diameter of a through hole in the upper end of the clamping sleeve is not smaller than the maximum machining diameter of the hemispherical thin-wall part.

The clamping sleeve is provided with a threaded hole with the diameter larger than that of the through hole, the through hole and the threaded hole form a positioning pressure table at the intersection, and after the threaded hole is in adaptive connection with external threads arranged on the outer wall of the upper end of the fixing column, the outer edge of the upper end face of the hemispherical thin-wall part is tightly pressed and fixed in the spherical groove by the positioning pressure table.

Furthermore, the outer wall of the clamping sleeve is provided with a disassembly auxiliary hole, and a disassembly rod which is inserted into the disassembly auxiliary hole in a rotating mode is arranged on the outer wall of the clamping sleeve, so that the clamping sleeve can be screwed or unscrewed during disassembly and assembly.

Furthermore, the lower end face of the fixing column is provided with a long hole which is communicated with the spherical groove and used for exhausting or disassembling the spherical groove.

Further, the radius of the spherical groove is not more than the outer spherical radius of the hemispherical thin-walled part.

The utility model has the advantages compared with the prior art:

1. according to the technical scheme, the upper end face of the fixing column is provided with the spherical groove matched with the hemispherical thin-wall part, and the hemispherical thin-wall part is clamped and fixed in the spherical groove through the clamping sleeve detachably fixed at the upper end of the fixing column, so that the hemispherical thin-wall part is clamped and fixed;

2. the technical scheme ensures the position consistency of the hemispherical thin-wall part when the hemispherical thin-wall part is clamped and fixed each time, thereby improving the processing precision of the spherical hollow thin-wall floating ball, reducing the processing cost of the spherical hollow thin-wall floating ball and improving the processing efficiency;

3. according to the technical scheme, the diameter of the through hole at the upper end of the clamping sleeve is designed to be not smaller than the maximum processing diameter of the hemispherical thin-wall part, so that the influence on the processing precision and the processing quality of the hemispherical thin-wall part due to the interference of the clamping sleeve during the processing of the inner hole of the hemispherical thin-wall part is avoided;

4. the technical scheme has the advantages that the radius of the spherical groove is not larger than the outer spherical radius of the hemispherical thin-wall part, so that the problem that the clamping sleeve cannot be effectively pressed on the hemispherical thin-wall part due to the fact that the upper end of the hemispherical thin-wall part installed in the spherical groove is lower than the upper end face of the fixed column is solved, the clamping sleeve is guaranteed to be effectively pressed on the outer edge of the upper end of the hemispherical thin-wall part, and the hidden danger of machining quality defects caused by the fact that the hemispherical thin-wall part shakes in the spherical groove in the machining process is eliminated;

5. this technical scheme simple structure, the modern design, clamping is dismantled convenient and fast, and reliable and stable nature is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the fixing column structure of the present invention;

fig. 3 is a schematic view of the structure of the clamping sleeve of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 3 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

The clamp for machining the inner wall of the hemispherical thin-walled part comprises a clamping sleeve 2 and a fixing column 1, wherein the lower end of the fixing column 1 is fixed on a lathe clamping jaw, a spherical groove 3 is formed in the middle of the upper end face of the fixing column 1, the hemispherical thin-walled part 4 is matched in the spherical groove 3, the clamping sleeve 2 is positioned above the fixing column 1 and is detachably and fixedly connected with the upper end of the fixing column 1, the outer edge of the upper end face of the hemispherical thin-walled part 4 is tightly pressed by the clamping sleeve 2 and then fixed in the spherical groove 3, and the diameter of a through hole 5 in the upper end of the clamping sleeve 2 is not smaller than the maximum machining diameter of the hemispherical thin-walled part 4; in the structure, the spherical groove 3 matched with the hemispherical thin-wall part 4 is processed on the upper end surface of the fixing column 1, and the hemispherical thin-wall part 4 is clamped and fixed in the spherical groove 3 through the clamping sleeve 2 detachably fixed at the upper end of the fixing column 1, so that the clamping and fixing of the hemispherical thin-wall part 4 are realized; the structure ensures the consistency of the position of the hemispherical thin-wall part 4 when the hemispherical thin-wall part is clamped and fixed each time, thereby improving the processing precision of the spherical hollow thin-wall floating ball, reducing the processing cost of the spherical hollow thin-wall floating ball and improving the processing efficiency;

the detachable fixed connection structure of the clamping sleeve 2 and the fixed column 1 is as follows: the lower end of the clamping sleeve 2 is provided with a threaded hole 7 with the aperture larger than that of the through hole 5, the through hole 5 and the threaded hole 7 form a positioning pressure table 8 at the intersection, and after the threaded hole 7 is in adaptive connection with an external thread 6 arranged on the outer wall of the upper end of the fixing column 1, the upper end surface of the hemispherical thin-wall part 4 is fixed in the spherical groove 3 in a pressing mode through the positioning pressure table 8; specifically, the outer wall of the clamping sleeve 2 is provided with a disassembly auxiliary hole 9, and a disassembly rod which is inserted into the disassembly auxiliary hole 9 in a rotating manner is arranged on the outer wall of the clamping sleeve 2, so that the clamping sleeve 2 can be screwed or unscrewed during disassembly and assembly.

Wherein, the lower end surface of the fixing column 1 is provided with a long hole 10 which is communicated with the spherical groove 3 and is used for exhausting or disassembling the spherical groove 3, thereby facilitating the quick exhaust of gas when the hemispherical thin-wall part 4 is arranged in the spherical groove 3, and the processed hemispherical thin-wall part 4 is quickly taken out from the spherical groove 3.

In order to ensure that the clamping sleeve 2 effectively clamps the semi-spherical thin-walled part 4, the radius of the spherical groove 3 is not larger than the outer spherical radius of the semi-spherical thin-walled part 4; in the structure, the radius of the spherical groove 3 is not larger than the outer spherical radius of the hemispherical thin-wall part 4, so that the problem that the clamping sleeve 2 cannot be effectively pressed on the hemispherical thin-wall part 4 due to the fact that the upper end of the hemispherical thin-wall part 4 installed in the spherical groove 3 is lower than the upper end face of the fixing column 1 is solved, the clamping sleeve is ensured to be effectively pressed on the outer edge of the upper end of the hemispherical thin-wall part 4, and the hidden danger of machining quality defects caused by the fact that the hemispherical thin-wall part 4 shakes in the spherical groove 3 in the machining process is eliminated;

this technical scheme designs the diameter of tight cover 2 upper end through-hole 5 for the biggest processing diameter that is not less than hemisphere thin-walled part 4 to avoid hemisphere thin-walled part 4 hole add man-hour with tight cover 2 take place to interfere and influence the machining precision and the processingquality of hemisphere thin-walled part 4, simple structure, the modern design, clamping dismantlement convenient and fast, reliable and stable nature is good.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Clamp for processing inner wall of hemispherical thin-wall part, characterized in that: the lathe clamping fixture comprises a clamping sleeve (2) and a fixing column (1) with the lower end fixed on a lathe clamping jaw, wherein a spherical groove (3) is formed in the middle of the upper end face of the fixing column (1), a hemispherical thin-wall part (4) is matched in the spherical groove (3), the clamping sleeve (2) is located above the fixing column (1) and is fixed in the spherical groove (3) after being detachably connected with the upper end of the fixing column (1), the outer edge of the upper end face of the hemispherical thin-wall part (4) is tightly fixed in the spherical groove (3) through the clamping sleeve (2), and the diameter of a through hole (5) in the upper end of the clamping sleeve (2) is not smaller than the maximum machining diameter of the hemispherical thin-wall part (4).

2. The clamp for machining the inner wall of the hemispherical thin-walled part according to claim 1, wherein: the clamping sleeve (2) is provided with a threaded hole (7) with the diameter larger than that of the through hole (5) at the lower end, a positioning pressure table (8) is formed at the intersection of the through hole (5) and the threaded hole (7), and after the threaded hole (7) is in adaptive connection with an external thread (6) arranged on the outer wall of the upper end of the fixing column (1), the external surface of the upper end of the hemispherical thin-wall part (4) is fixed in the spherical groove (3) along the pressure by the positioning pressure table (8).

3. The jig for machining the inner wall of a hemispherical thin-walled part according to claim 2, wherein: the outer wall of the clamping sleeve (2) is provided with a disassembly auxiliary hole (9), and a disassembly rod which is inserted into the disassembly auxiliary hole (9) in a rotating manner is arranged on the outer wall of the clamping sleeve (2), so that the clamping sleeve (2) can be screwed or unscrewed during disassembly and assembly.

4. The jig for processing the inner wall of a hemispherical thin-walled part according to any one of claims 1 to 3, wherein: and the lower end surface of the fixing column (1) is provided with a long hole (10) which is communicated with the spherical groove (3) and used for exhausting or disassembling the spherical groove (3).

5. The tool for machining the inner wall of the hemispherical thin-walled part according to claim 4, wherein: the radius of the spherical groove (3) is not more than the external spherical radius of the hemispherical thin-wall part (4).