CN205253799U

CN205253799U - Clamp used for bending pipe

Info

Publication number: CN205253799U
Application number: CN201521096721.3U
Authority: CN
Inventors: 杨绍荣; 章跃洪; 吴国洪
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-05-25
Anticipated expiration: 2025-12-17

Abstract

The utility model relates to a clamp used for bending pipe who is used for bending to pipes such as copper pipe, aluminum pipe, thin -walled steel pipe the helix shape of rule is refered in particular to in machine -building processing field, mainly by the nut, and the end plate, stud I, anchor clamps body I, anchor clamps body II, the dabber, anchor clamps body IV, stud II and anchor clamps body III constitute. The utility model discloses think about ingenious, rational in infrastructure, easy and simple to handle, can with pipes such as copper pipe, aluminum pipe, thin -walled steel pipe bend to the rule the helix shape.

Description

A kind of tube bending jig

Technical field

The utility model relates to machine-building manufacture field, refers in particular to a kind of for by pipes such as copper pipe, aluminum pipe, thin-wall steel tubesBend to a kind of tube bending jig of regular helix shape.

Background technology

Often the tube bendings such as copper pipe, aluminum pipe, thin-wall steel tube need to be become to helix shape at machine-building manufacture field.But, if do not have suitable fixture just not too easily the tube bendings such as copper pipe, aluminum pipe, thin-wall steel tube to be become to satisfactory spiral shell, even can there is the defects such as pipe flattening, distortion, distortion, out-of-shape, pressure break in spin line shape.

Summary of the invention

In order to address the above problem, the utility model provides a kind of tube bending jig.

The technical scheme that the utility model adopts is:

Described a kind of tube bending jig is mainly by nut, end plate, and stud I, clamp body I, clamp body II, mandrel,Clamp body IV, stud II and clamp body III form. Two of described stud I is respectively left hand thread I and dextrorotation spiral shellLine I. Two of described stud II is respectively left hand thread II and right-handed thread II. Described clamp body I have left-handed screw hole I,Face I, described clamp body III has dextrorotation screw hole I, face II, and described clamp body II has left-handed screw hole II, and described clamp body IV has the right sideRevolve screw hole II. The described left hand thread I of described stud I coordinates with the described left-handed screw hole I of described clamp body I, described inThe described right-handed thread I of stud I coordinates with the described dextrorotation screw hole I of described clamp body III, the institute of described stud IIState left hand thread II and coordinate with the described left-handed screw hole II of described clamp body II, the described right-handed thread II of described stud II withThe described dextrorotation screw hole II of described clamp body IV coordinates. Described end plate has otch circular hole, face III, face IV and through hole I, described logicalHole I is shaped as rectangle half-round cross hole. Described I, described II, described III are identical with the cambered surface radius of described IV.Described III and described IV are symmetrical about described otch circular hole. Described mandrel has otch cylinder, through hole II and through hole III.Described otch circular hole and described otch cylindrical fit. Half radius of circle of described through hole I is greater than the Major Diam of described stud IHalf. The diameter of described through hole II is greater than the Major Diam of described stud I. The diameter of described through hole III is greater than described twoThe Major Diam of hook bolt II.

The beneficial effects of the utility model are:

The utility model is skillfully constructed, rational in infrastructure, easy and simple to handle, can be by curved the pipes such as copper pipe, aluminum pipe, thin-wall steel tubeThe regular helix shape of bent one-tenth.

Brief description of the drawings

Further illustrate below in conjunction with figure of the present utility model:

Fig. 1 is structural representation of the present utility model.

Fig. 2 is explosive view of the present utility model.

Fig. 3 is part-structure schematic diagram of the present utility model.

Fig. 4 is the structural representation of described stud I.

Fig. 5 is the structural representation of described stud II.

Fig. 6 is the structural representation of described clamp body I.

Fig. 7 is the structural representation of described clamp body II.

Fig. 8 is the structural representation of described clamp body III.

Fig. 9 is the structural representation of described clamp body IV.

Figure 10, Figure 11, Figure 12 are the structural representations of described end plate.

Figure 13, Figure 14 are the structural representations of described mandrel.

In figure, 1. nut, 2. end plate, 3. stud I, 4. clamp body I, 5. clamp body II, 6. mandrel, 7. folderConcrete IV, 8. stud II, 9. clamp body III, 10. left hand thread I, 11. right-handed thread I, 12. left hand thread II, 13.Right-handed thread II, 14. left-handed screw hole I, 15. dextrorotation screw hole I, 16. left-handed screw hole II, 17. dextrorotation screw hole II, 18. otch circlesHole, 19. otch cylinders, 20. I, 21. II, 22. III, 23. IV, 24. through hole I, 25. through hole II, 26. is logicalHole III.

Detailed description of the invention

Described a kind of tube bending jig is mainly by two described nuts (1), two described end plates (2), two described double endsBolt I (3), described clamp body I (4), described clamp body II (5), described mandrel (6), described clamp body IV (7),Two described stud II (8) and described clamp body III (9) form. Described stud I (3) has described left hand threadI (10) and described right-handed thread I (11). Described stud II has described left hand thread II (12) and described dextrorotation spiral shellLine II (13). Described clamp body I (4) have the described left-handed screw hole I (14) of two symmetrical distributions and two left and right rightClaim described the I (20) distributing, described clamp body III (9) has the described dextrorotation screw hole I (15) of two symmetrical distributionsWith described the II (21) of two symmetrical distributions, described clamp body II (5) has the described left-handed of two symmetrical distributionsScrew hole II (16), described clamp body IV (7) has the described dextrorotation screw hole II (17) of two symmetrical distributions. Described left-handedScrew thread I (10) coordinates with described left-handed screw hole I (14), described right-handed thread I (11) and described dextrorotation screw hole I (15)Coordinate, described left hand thread II (12) coordinates with described left-handed screw hole II (16), described right-handed thread II (13) and described inDextrorotation screw hole II (17) coordinates. Described end plate (2) has described otch circular hole (18), described III (22), described IV(23) and described through hole I (24), described through hole I (24) be shaped as rectangle half-round cross hole. Described I (20),Described II (21), described III (22) are identical with the cambered surface radius of described IV (23). Described III (22) and instituteState face IV (23) symmetrical about described otch circular hole (18). Described mandrel (6) have two symmetrical distributions described inThe described through hole II (25) of otch cylinder (19), two symmetrical distributions and the described through hole III of two symmetrical distributions(26). Described otch circular hole (18) coordinates with described otch cylinder (19). Half radius of circle of described through hole I (24) is largeIn the half of the Major Diam of described stud I (3). The diameter of described through hole II (25) is greater than described stud I (3)Major Diam. The diameter of described through hole III (26) is greater than the Major Diam of described stud II (8).

When described a kind of tube bending jig assembling, two described stud II (8) are inserted respectively to described mandrel (6)Two described through hole III (26), by two described stud II of turn (8) two described stud II's (8)Two is respectively charged into described clamp body II (5) and described clamp body IV (7), and two described stud I (3) are inserted respectivelyEnter two described through hole II (25) of described mandrel (6), by two described stud I of turn (3) described in twoTwo of stud I (3) is respectively charged into described clamp body I (4) and described clamp body III (9), in described mandrel (6)Two ends respectively pack a described end plate (2) into, in opposite directions and respectively card of the described through hole III (26) that makes two described end plates (2)Enter described stud I (3) separately, then respectively use a described nut (1) to screw. While or alternately two institutes of turnState stud I (3), until described I (20) contacts with described III (22), described II (21) with describedIV (24) contact. Simultaneously or alternately two described stud II of turn (8), until described clamp body I (4), described inA complete cylinder of clamp body II (5), described clamp body III (9) and described clamp body IV (7) composition, now described inSemi arch on clamp body I (4), described clamp body II (5), described clamp body III (9) and described clamp body IV (7)Groove has formed a regular helicla flute.

When described a kind of tube bending jig uses, one end of described mandrel (6) is clipped on the scroll chuck of lathe, described in inciting somebody to actionThe other end of mandrel (6) is with top the withstanding on the tailstock of lathe, by the copper pipe of certain length and respective diameters, aluminum pipe or thin-walledThe pipes such as steel pipe lean against on the helicla flute of fixture and are bent to regular helix shape, screw out the described nut (1) on right side,Take out the described end plate (2) of the same side, while or alternately two described stud II of turn (8), make described clamp body II(5) and described clamp body IV (7) shrink to the inside simultaneously,, make simultaneously or alternately unscrew two described stud I (3)Described clamp body I (4) and described clamp body III (9) shrink to the inside simultaneously, take off the pipe that is bent shaping.

Claims

1. a tube bending jig, mainly by nut, end plate, stud I, clamp body I, clamp body II, mandrel,Clamp body IV, stud II and clamp body III form, and it is characterized in that: two of described stud I is respectively left hand threadI and right-handed thread I; Two of described stud II is respectively left hand thread II and right-handed thread II; Described clamp body I hasLeft-handed screw hole I, face I, described clamp body III has dextrorotation screw hole I, face II, and described clamp body II has left-handed screw hole II, described inClamp body IV has dextrorotation screw hole II; Described left hand thread I coordinates with described left-handed screw hole I, described right-handed thread I and the described right sideRevolve screw hole I and coordinate, described left hand thread II coordinates with described left-handed screw hole II, described right-handed thread II and described dextrorotation screw hole IICoordinate; Described end plate has otch circular hole, face III, face IV and through hole I, and described through hole I is shaped as rectangle half-round cross hole, instituteState face I, described II, described III are identical with the cambered surface radius of described IV; Described III and described IV cut about describedMouth circular hole is symmetrical; Described mandrel has otch cylinder, through hole II and through hole III; Described otch circular hole and described otch cylinder are joinedClose; Half radius of circle of described through hole I is greater than the half of the Major Diam of described stud I; The diameter of described through hole II is greater thanThe Major Diam of described stud I; The diameter of described through hole III is greater than the Major Diam of described stud II.