CN207344168U - A kind of resilient clamp tool structure - Google Patents

Abstract

The utility model discloses an elastic clamping tooling structure, which is characterized in that: the clamping tooling structure comprises a cone (1), a taper sleeve (2) and a nut (3), the cone (1) and the nut (3) There are holes in the center of the nut, the cone (1) is inserted into the hole of the nut by the first surface of the nut along the axial direction, and the tapered sleeve (2) is inserted into the hole of the cone by the second surface of the nut along the axial direction, so The taper sleeve (2) is an elastic structural member. Beneficial effects of the utility model: the roundness of turning of cylindrical parts, especially thin-walled pipe parts, is improved through the clamping tool, and the elliptical shape of cylindrical parts, especially thin-walled pipe parts, is prevented from turning. , Improve the assembly accuracy of such parts after processing.

Description

An elastic clamping tooling structure

Technical field:

The utility model relates to the field of an elastic clamping tool structure, in particular to an elastic clamping tool for thin-walled tube turning.

Background technique:

Thin-walled tubular parts are easily processed into elliptical shapes during turning, which will cause great inconvenience to subsequent assembly after processing such parts into elliptical shapes. The ellipse is mainly caused by the release of the internal stress of the material itself, and it is also caused by the uneven clamping force of the jaws of the machine tool.

Utility model content:

In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to design an elastic clamping tool, which is suitable for thin-walled pipe parts turning and assembly clamping, which can greatly reduce the uneven clamping force caused by the jaws of the machine tool. roundness distortion.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an elastic clamping tooling structure, which is characterized in that: it consists of a cone, a taper sleeve and a nut, and the centers of the cone and the nut are provided with holes, and the cone is axially The first end face of the nut is fitted into the hole of the nut, and the taper sleeve is fitted into the hole of the cone by the second end face of the nut along the axial direction, and the taper sleeve is an elastic structural part.

Preferably, the cone is composed of a stepped first cylinder and a second cylinder in the axial direction, a first circular hole is provided at the center of the first cylinder, and a second circular hole is provided at the center of the second cylinder. A tapered hole; a second circular hole and a second tapered hole are opened in the center of the nut along the axial direction; the tapered sleeve consists of a first cone, a third cylinder and a second cone The first tapered body of the taper sleeve matches the first tapered hole of the taper body, the second tapered body of the taper sleeve matches the second tapered hole of the nut, and the taper sleeve There are also opening slots evenly distributed along the circumferential direction; the second cylinder of the cone is screwed to the second circular hole of the nut.

Preferably, several through holes are evenly distributed on the circumference side of the first cylinder, and several screw holes are evenly distributed on the circumference side of the first surface of the nut, the through holes of the first cylinder and the The position of the screw hole of the nut is matched, and the screw is sequentially screwed into the through hole of the first cylinder and the screw hole of the nut to lock the workpiece.

Preferably, a first installation hole is provided on the axial surface of the first cylindrical body of the cone, and a second installation hole is provided on the axial surface of the nut.

Beneficial effects of the utility model: the roundness of turning of cylindrical parts, especially thin-walled pipe parts, is improved through the clamping tool, and the ellipse of cylindrical parts, especially thin-walled pipe parts, is prevented from being formed during turning. , Improve the assembly accuracy of such parts after processing.

Description of the drawings:

The above-mentioned and other features, properties and advantages of the present utility model will become more apparent through the following description in conjunction with the accompanying drawings and embodiments. In the accompanying drawings, the same reference numerals always represent the same features, wherein:

Fig. 1-Fig. 4 discloses the structural representation of elastic clamping frock in an embodiment;

Fig. 5 is the sectional view of A-A direction of Fig. 1;

Fig. 6 discloses a schematic diagram of the installation of the thin-walled pipe clamped by the elastic clamping tool in one embodiment;

Fig. 7 discloses a schematic diagram of installation of a middle hook wrench according to an embodiment.

In the figure: 1. Cone, 2. Taper sleeve, 3. Nut, 4. First mounting hole, 5. Second mounting hole, 6. Workpiece, 7. Hook wrench, 11. The first cylinder of the cone , 12. The second cylinder of the cone, 13. The first circular hole of the cone, 14. The first tapered hole of the cone, 15. The through hole of the cone, 21. The first cone of the taper sleeve , 22. The third cylinder of the taper sleeve, 23. The second cone of the taper sleeve, 24. The opening groove of the taper sleeve, 31. The circular hole of the nut, 32. The second tapered hole of the nut, 33. The nut screw holes.

Detailed ways:

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Referring to Fig. 1 and in conjunction with Fig. 2-Fig. 5, Fig. 1-Fig. 4 discloses a schematic structural view of the elastic clamping frock in one embodiment; Fig. 5 is a sectional view of A-A direction of Fig. 1; in one embodiment, the elastic clip The tooling structure may include a cone 1, a taper sleeve 2 and a nut 3, and the centers of the cone and the nut are provided with holes. 2 is inserted into the hole of the cone by the right end surface of the nut 3 in the axial direction, and the taper sleeve 2 is an elastic structural member.

Preferably, the cone 1 is composed of a stepped first cylinder 11 and a second cylinder 12 along the axial direction, the center of the first cylinder is provided with a first circular hole 13, and the center of the second cylinder is provided with a The first tapered hole 14, the size of the tapered hole of the tapered hole 14 gradually decreases to the left from the right end face of the cone; the center of the nut 3 is provided with the second circular hole 31 and the second tapered hole in sequence along the axial direction 32; The axial direction of the tapered sleeve 2 is composed of the first tapered body 21, the third cylindrical body 22 and the second tapered body 23, the first tapered body 21 matches the first tapered hole 14, the second tapered body 23 and the second tapered body The two tapered holes 32 are matched, and several evenly distributed opening grooves 24 are provided in the axial direction of the tapered sleeve; the second cylinder 12 is screwed to the second circular hole 31 .

Preferably, several through-holes 15 are evenly distributed on the circumferential side of the first cylinder, and several screw holes 33 are also uniformly distributed on the circumferential side of the first surface of the nut 3, the through-holes 15 of the first cylinder and the screw holes of the nut 33 positions are matched, and the screw is screwed into the through hole 15 of the first cylinder and the screw hole 33 of the nut in turn to lock the workpiece. It can be understood that the workpiece may be a thin-walled pipe fitting, or a cylindrical workpiece, etc.

Preferably, a first installation hole 4 is provided on the surface of the first cylinder 11 of the cone, and a second installation hole 5 is provided on the surface of the nut 3 .

Referring to FIG. 6 in combination with FIG. 7 , FIG. 6 discloses a schematic diagram of installation of the thin-walled pipe clamped by elastic clamping tooling in an embodiment, and FIG. 7 discloses a schematic diagram of installation of a hook wrench in an embodiment. When the elastic clamping tool is in the initial state, put the workpiece 6 into the taper sleeve 2 stably, and the inner side of the taper sleeve 2 is close to the cone 1; use the hook wrench 7 to respectively clamp the first installation hole 4 of the cone in reverse With the second mounting hole 5 of the nut, relative to the screw nut 3, the nut 3 in this embodiment is to spirally move to the left, and the second tapered hole 32 of the nut produces a second tapered body 23 of the tapered sleeve. The thrust force makes the entire taper sleeve 2 move to the left, and the first tapered body 21 of the taper sleeve will be compressed by the first tapered hole 14 of the cone and start to shrink radially until the inner hole of the taper sleeve 2 and the workpiece 6 contact with the outer circle and maintain sufficient tension; then screw the threaded parts (not marked in the figure) into the through hole 15 of the cone and the screw hole 33 of the nut in sequence with an inner hexagonal wrench (not marked in the figure) and lock them Artifact 6. Then take off the hook wrench 7; install the installed elastic clamping tooling and workpiece 6 on the three-jaw chuck of the lathe, the chuck is close to the left end face of the cone 1, and the jaws clamp the outer circle of the nut 3, and start turning.

It can be understood that the cone 1 and the nut 3 can be rigid structural members, and the cone 1 and the nut 3 can be connected by threads; the taper sleeve 2 can be an elastic structural member, and both sides of the taper sleeve 2 can have The opening grooves 24 scattered in the circumferential direction, in one embodiment, the diameter of the inner hole of the taper sleeve 2 in the free state is Φ116, and can shrink to Φ113 after compression; through threaded parts, such as set screws, it is installed in the through hole of the cone In the hole 15, it can be tightened and screwed into the screw holes 33 closely arranged in the circumferential direction of the left end face of the nut, so as to prevent the cone 1 and the nut 3 from loosening under working conditions.

The above-mentioned embodiments are provided for those who are familiar with the field to realize or use the utility model. Those who are familiar with the field can make various modifications or modifications to the above-mentioned embodiments without departing from the utility model idea of the present utility model. Therefore, the scope of protection of the utility model is not limited by the above-mentioned embodiments, but should be the maximum range that meets the innovative features mentioned in the claims.

Claims (4)

1. An elastic clamping frock structure is characterized in that: the clamping frock structure comprises a cone (1), a taper sleeve (2) and a nut (3), and the cone (1) and the nut (3) Holes are opened in the center, the cone (1) is inserted into the hole of the nut by the first end surface of the nut in the axial direction, and the tapered sleeve (2) is inserted in the hole of the cone by the second end surface of the nut in the axial direction. The taper sleeve (2) is an elastic structural member. 2. The elastic clamping tooling structure according to claim 1, characterized in that: the cone (1) is composed of a stepped first cylinder (11) and a second cylinder (12) in the axial direction, The center of the first cylinder is provided with a first circular hole (13), and the center of the second cylinder is provided with a first tapered hole (14); the center of the nut is provided with a second circular hole in the axial direction. shaped hole (31) and the second tapered hole (32); the taper sleeve (2) consists of the first tapered body (21), the third cylindrical body (22) and the second tapered body (23) in the axial direction Composition, the first tapered body (21) of the taper sleeve matches the first tapered hole (14) of the taper body, the second tapered body (23) of the taper sleeve matches the second taper body of the nut shaped hole (32), the taper sleeve is also provided with opening grooves (24) evenly distributed along the circumferential direction; the second cylinder (12) of the cone and the second circular hole ( 31) threaded connection. 3. The elastic clamping tooling structure according to claim 2, characterized in that: several through holes (15) are evenly distributed on the circumferential side of the first cylinder, and on the circumferential side of the first surface of the nut Several screw holes (33) are evenly distributed, and the positions of the through holes (15) of the first cylinder and the screw holes (33) of the nut are matched, and the screw parts are screwed into the through holes of the first cylinder in turn. After (15) and the screw hole (33) of described nut, workpiece is locked. 4. The elastic clamping tooling structure according to claim 3, characterized in that: a first installation hole (4) is provided on the axial surface of the first cylindrical body (11) of the cone, and a first mounting hole (4) is provided on the nut ( 3) The axial surface is provided with a second mounting hole (5).