CN217237051U - Residual stress testing base for pipeline welding seam blind hole method - Google Patents

Abstract

The utility model discloses a be used for pipeline welding seam blind hole method residual stress test base, including annular base, annular base curb plate, shell, drilling module base, be equipped with positioning screw on the annular base, be equipped with the rigidity fixed orifices on the annular base curb plate, be equipped with rigidity fixed stud and nut on the rigidity fixed orifices, be equipped with annular base fixed module on the annular base, annular base fixed module includes annular base fixed screw and annular base fixation nut, be equipped with the centering module on the annular base, be equipped with ring rail and transverse guide in the centering module. The utility model discloses can test pipeline girth joint residual stress, solve the fixed problem of equipment in pipeline girth joint welding residual stress test, can carry out pipeline girth joint residual stress test with faster speed, improve pipeline girth joint residual stress's efficiency of software testing.

Description

Be used for pipeline welding seam blind hole method residual stress test base

Technical Field

The utility model relates to a blind hole method residual stress test fixing device technical field specifically is a be used for pipeline welding seam blind hole method residual stress test base.

Background

The welding residual stress is an internal stress generated inside a welded structure due to uneven heating of a workpiece to be welded during welding. At present, the testing method of the welding residual stress generally comprises a contour method, a blind hole method and the like. Compared with the residual stress test by the contour method, the blind hole method cannot greatly influence the service of a welding piece structure. Therefore, the blind hole method is most widely applied to the residual stress test of practical engineering. The test of the residual stress in the flat welding is more convenient, and a complex equipment fixing system is not needed. However, in the test of the residual stress of the welding seam of the pipeline, the surface of the welding seam is an arc surface, the centering device for the welding residual stress and the fixing device for the welding gun cannot be used in the test of the residual stress of the surface, and in the actual test of the residual stress of the welding seam of the pipeline, manual alignment and drilling are often needed, so that drilling failure or inaccurate test data of the residual stress can be caused, and the test efficiency and accuracy of the residual stress can be seriously reduced.

Therefore, how to design a base for testing the residual stress of the pipeline welding seam blind hole method becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for pipeline welding seam blind hole method residual stress test base to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for pipeline welding seam blind hole method residual stress test base, includes annular base, annular base curb plate, shell, drilling module base, annular base is by two semi-annular base rigidity, be equipped with positioning screw on the annular base, be equipped with the rigidity fixed orifices on the annular base curb plate, be equipped with rigidity fixed stud and nut on the rigidity fixed orifices. The annular base is provided with an annular base fixing module, and the annular base fixing module comprises an annular base fixing screw rod and an annular base fixing nut. The centering module is provided with an annular guide rail and a transverse guide rail, the centering module is provided with a transverse positioning screw rod, and the transverse positioning screw rod is provided with a side plate positioning nut and a transverse positioning nut. The drilling module is characterized in that a drilling module is arranged on the centering module, a gear rack transmission mechanism is arranged on the drilling module, a sliding groove is formed in a base on the lower portion of the drilling module, the sliding groove moves on a sliding rail of the centering module and is located through a socket head cap screw, and a handle and a spring mechanism are arranged on the drilling module.

Further, the annular base is fixed by two semi-annular bases through an annular base fixing module.

Furthermore, the number of the transverse guide rail holes is 24, and the transverse guide rail holes are centrosymmetric.

Furthermore, a threaded hole is formed in the transverse sliding rail fixing block and is fixed with the sliding block through an inner hexagonal screw.

Furthermore, the number of the sleeves is 2, and the sleeves are symmetrically distributed on a central plane of the gear perpendicular to the central axis.

Compared with the prior art, the beneficial effects of the utility model are that: the base for testing the residual stress of the pipeline welding seam by the blind hole method is simple to operate, convenient to use and high in applicability, and can be used for centering when testing the residual stress of the welding seam on the surface of the pipeline welding seam, so that the working efficiency of testing the residual stress of the pipeline welding seam is improved; through the guide rail that sets up, be convenient for measure at the different positions of pipeline circumference, the suitability is stronger, through the transverse slide rail who sets up for whole drilling can remove along the axis direction of pipeline with the centering module. The method has good adaptability to the test of the residual stress of the pipeline welding seam, and has a good application market on the test of the residual stress of the pipeline welding seam.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a side view of the present invention;

fig. 5 is a partial sectional view of the rack and pinion of the present invention;

FIG. 6 is a partial enlarged view of the present invention;

reference numbers in the figures: 1. positioning a screw rod; 2. a semi-annular base; 3. rigidly securing a stud; 4. a nut; 5. a drilling module; 6. a handle; 7. a spring; 8. a centering module; 9. a transverse guide rail; 10. a ring guide fixing nut; 11. an annular base fixing module; 12. an annular guide rail; 13. a drill gun fixing device; 14. an upper spring fixing block; 15. a side plate positioning nut; 16. a transverse positioning screw rod; 17. a sleeve; 18. a lower spring retainer ring; 19. a rack fixing rod; 20. a transverse positioning nut; 21. the annular base fixes the screw rod; 22. a ring-shaped base fixing nut; 23 gear wheels; 24. a transverse guide positioning pin; 25. a transverse guide rail hole; 26. an annular base; 27. an annular base side plate; 28. a rigid fixing hole; 29. a moving groove; 30. a housing; 31. a rack; 32. drilling a module base; 33. a chute; 34. a socket head cap screw; 35 slide rail.

Detailed Description

The preferred embodiments of the present invention will be described with reference to the accompanying drawings, and it is to be understood that the preferred embodiments described herein are merely for purposes of illustration and understanding, and are not intended to limit the invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a be used for pipeline welding seam blind hole method residual stress test base, includes annular base 26, annular base curb plate 27, annular base 26 is formed by two semi-ring base 2 mergers, be equipped with positioning screw 1 on the annular base 26, the base is fixed through positioning screw 1 when the piping erection, annular base curb plate 27 both sides are equipped with rigidity fixed orifices 28, annular base curb plate 27 both sides are equipped with transverse guide hole 25, be equipped with rigidity fixed stud 3 and nut 4 on the rigidity fixed orifices 28. The annular base 2 is provided with an annular base fixing module 11, and the annular base fixing module 11 comprises an annular base fixing screw rod 21 and an annular base fixing nut 22. Be equipped with centering module 8 on the annular base 2, be equipped with ring rail 12 and transverse guide 9 on the centering module 8, transverse guide 9 both ends are equipped with transverse guide locating pin 24, and transverse guide 9 is fixed on unsynchronized transverse guide hole 25 to satisfy the residual stress test of the different positions of pipeline, ring rail 12 both ends are fixed through ring rail fixation nut 10, be equipped with transverse positioning screw 16 on the centering module 8, transverse positioning lever 16 carries out transverse positioning to centering module 5 and drilling module 8. And the transverse positioning screw rod 16 is provided with a side plate positioning nut 15 and a transverse positioning nut 20. The centering module is last 8 to be equipped with drilling module 5, be equipped with gear 23 and rack 31 drive mechanism on drilling module 5, the rack passes through 19 location of rack dead lever, be equipped with spout 33 on the 5 lower part base of drilling module, spout 33 removes on slide rail 35 to fix a position through hexagon socket head cap screw 34, be equipped with shifting chute 29 on the shell 30, be equipped with handle 6 and spring 7 on the drilling module, be equipped with sleeve 17 on the handle 6, be equipped with the solid fixed ring 18 of lower part spring on the sleeve 17, the spring is fixed through the solid fixed ring 18 of upper portion spring fixed block 14 and lower part spring. The drilling module base 32 is provided with a sliding groove 33, and the drilling module base 32 is positioned by an inner hexagon screw 34. The above constitutes the basic structure of the present invention.

More specifically, in the pipeline weld residual stress test, firstly, the annular base 26 is fixed at the pipeline weld through the annular base fixing module 11 and the positioning screw rod 1, then the centering module 8 and the drilling module 5 are moved along the transverse guide rail 9, the positioning is carried out through the side plate positioning nut 15 and the transverse positioning nut 20 after the centering module and the drilling module are moved to the corresponding point position, the drilling module 5 can be used for drilling after the positioning, and the blind hole method residual stress test is completed.

Finally, it should be noted that: although specific embodiments of the present invention have been described in detail herein with reference to the foregoing examples, those skilled in the art will appreciate that various changes, modifications, substitutions and alterations can be made to the specific embodiments described herein. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a be used for pipeline welding seam blind hole method residual stress test base, includes annular base (26), annular base curb plate (27), shell (30), drilling module base (32), its characterized in that, annular base (26) are merged by two semi-annular bases (2) and are formed, be equipped with positioning screw (1) on annular base (26), annular base curb plate (27) both sides are equipped with rigidity fixed orifices (28), annular base curb plate (27) both sides are equipped with transverse guide rail hole (25), be equipped with rigidity fixed stud (3) and nut (4) on rigidity fixed orifices (28); the annular base (2) is provided with an annular base fixing module (11), and the annular base fixing module (11) comprises an annular base fixing screw rod (21) and an annular base fixing nut (22); the centering device is characterized in that a centering module (8) is arranged on the annular base (2), an annular guide rail (12) and a transverse guide rail (9) are arranged on the centering module (8), transverse guide rail positioning pins (24) are arranged at two ends of the transverse guide rail (9), two ends of the annular guide rail (12) are fixed through annular guide rail fixing nuts (10), a transverse positioning screw rod (16) is arranged on the centering module (8), and a side plate positioning nut (15) and a transverse positioning nut (20) are arranged on the transverse positioning screw rod (16); the drilling module is characterized in that a drilling module (5) is arranged on the centering module (8), a gear (23) and a rack (31) transmission mechanism are arranged on the drilling module (5), the rack (31) is positioned through a rack fixing rod (19), a sliding chute (33) is arranged on a base at the lower part of the drilling module (5), the sliding chute (33) moves on a sliding rail (35) and is positioned through an inner hexagon screw (34), a moving groove (29) is arranged on the shell (30), a handle (6) and a spring (7) are arranged on the drilling module (5), a sleeve (17) is arranged on the handle (6), a lower spring fixing ring (18) is arranged on the sleeve (17), and the spring (7) is fixed with the lower spring fixing ring (18) through an upper spring fixing block (14); the drilling module base (32) is provided with a sliding groove (33), and the drilling module base (32) is positioned through an inner hexagon screw (34).

2. The base for testing the residual stress of the pipeline welding seam in the blind hole method according to the claim 1 is characterized in that: the annular base (26) is fixed by two semi-annular bases (2) through an annular base fixing module (11).

3. The base for testing the residual stress of the pipeline welding seam in the blind hole method according to the claim 1 is characterized in that: the number of the transverse guide rail holes (25) is 24, and the transverse guide rail holes (25) are centrosymmetric.

4. The base for testing the residual stress of the pipeline welding seam in the blind hole method according to the claim 1 is characterized in that: the upper spring fixing block (14) is connected with the shell (30) in a welding mode.

5. The base for testing the residual stress of the pipeline welding seam in the blind hole method according to the claim 1 is characterized in that: the number of the sleeves (17) is 2, and the sleeves are symmetrically distributed on a central plane of the gear (23) perpendicular to the central axis.

6. The base for testing the residual stress of the pipeline welding seam in the blind hole method according to the claim 1 is characterized in that: the lower spring fixing ring (18) and the sleeve (17) are fixed in a threaded connection mode.

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