CN211564931U - Be used for welded auxiliary fixtures - Google Patents
Be used for welded auxiliary fixtures Download PDFInfo
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- CN211564931U CN211564931U CN202020077622.5U CN202020077622U CN211564931U CN 211564931 U CN211564931 U CN 211564931U CN 202020077622 U CN202020077622 U CN 202020077622U CN 211564931 U CN211564931 U CN 211564931U
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Abstract
The utility model provides a be used for welded auxiliary fixtures belongs to the welding technology field. The problem that the welding precision of an existing ammonia refrigeration pressure container is difficult to guarantee during repair is solved. This be used for welded auxiliary fixtures, including platelike support body, a plurality of supporting legss along support body circumference interval distribution have on the support body, the bottom of supporting legss all is equipped with the magnetism mounting, it has zigzag or spiral shape guide way to open on the support body, sliding connection has the slip sleeve that supplies the rifle head male in the guide way. The utility model discloses a preset the guide way sliding fit of good shape on sliding sleeve and the support body, make the welding gun head wear to locate on the sliding sleeve and remove along with the guide way when the welding to guarantee the precision of weld mark.
Description
Technical Field
The utility model belongs to the technical field of the welding, a be used for welded auxiliary fixtures is related to.
Background
An ammonia refrigeration pressure vessel is a common vessel for storing ammonia gas, and is usually made of steel and designed and manufactured according to NB/T47012 pressure vessel for refrigeration equipment. Due to reasons such as poor operation management of a refrigeration system, ammonia refrigeration pressure vessels are in service in a liquid ammonia stress corrosion environment, part of the vessels are cracked and fail, in order to ensure the safety of the vessels and reduce loss, salvage repair welding repair is generally carried out, and the repaired vessels are expected to maintain normal operation for a long time.
In order to ensure the quality after repair welding, as shown in fig. 1 and fig. 2, the applicant invented a new repair welding process for an ammonia refrigeration pressure vessel 1, wherein a groove is formed by polishing along the expansion direction of a crack 11, then a groove is also formed by polishing in the vertical direction of the initial end and the final end of the crack, the grooves perpendicular to the expansion direction of the crack at the two ends of the crack are welded during repair welding to form an i shape, and then the groove is repaired by welding the crack. The groove priming layer adopts argon arc welding, the middle layer and the cover surface layer adopt shielded metal arc welding, the welding of the shielded metal arc welding adopts a fold-line-shaped track and forms a fold-line-shaped welding trace 12, when the deposited metal of the groove is basically parallel and level with the base metal, the groove is spirally welded around the welding line from inside to outside and forms the fold-line-shaped welding trace 12, and therefore the structural strength of the repair welding part is guaranteed. However, in the welding process, manual welding is usually adopted, so that the quality of the zigzag-shaped and spiral-shaped welding tracks can be affected due to the difference of the technical levels of workers, the technical level requirement on the welding workers is high, and the problem of poor welding track precision caused by misoperation still exists.
Disclosure of Invention
The utility model aims at having above-mentioned problem to current technique, provided a be used for welded auxiliary fixtures, the utility model aims to solve the technical problem that: how to ensure the welding precision when repairing the ammonia refrigeration pressure vessel.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a be used for welded auxiliary fixtures, includes platelike support body, its characterized in that, a plurality of supporting legss along support body circumference interval distribution have on the support body, the bottom of supporting legss all is equipped with the magnetism mounting, it has zigzag or spiral guide way to open on the support body, sliding connection has the slip sleeve that supplies the welding gun head male in the guide way.
The ammonia refrigeration pressure container is made of steel materials, the auxiliary tool is adsorbed on the side wall of the ammonia refrigeration pressure container through the magnetic fixing piece on the supporting leg, a wire guide groove on the support body is opposite to a welding seam on the ammonia refrigeration pressure container, then a welding gun head of a welding gun is inserted into the sliding sleeve, the welding gun penetrates through the sliding sleeve to be in contact with the welding seam, the welding gun is started, the welding seam is welded while the welding gun is moved, the welding gun moves along the wire guide groove along with the sliding sleeve, therefore, a zigzag or spiral welding trace is formed on the ammonia refrigeration pressure container, the welding trace is prevented from being influenced by human factors, the precision of the welding trace is ensured, and the quality of the ammonia refrigeration pressure container after repair is achieved.
In foretell be used for welded auxiliary fixtures, the sliding sleeve includes outer sleeve and inner skleeve, outer sleeve and inner skleeve all are the cavity tube-shape, the inner skleeve is sliding connection in the outer sleeve coaxially, the inner wall of inner skleeve bottom still has and is used for leaning on and supplies the annular convex shoulder that the welding rod passed with the welding gun head, still be equipped with the spring that upwards pushes away the inner skleeve in the outer sleeve. The inner sleeve can slide relative to the outer sleeve, the welding gun head is fixed in the inner sleeve, and the welding head extends out of the annular convex shoulder and is abutted against the outer wall of the ammonia refrigeration pressure container, so that the welding head can still be stably contacted with the outer wall of the ammonia refrigeration pressure container after loss in use, and the continuity and stability of a welding trace are ensured.
In foretell be used for welded auxiliary fixtures, the corner that is the dogleg shape guide way all is the arc, makes the sliding sleeve slide more smoothly along the guide way.
In the auxiliary tool for welding, the outer sleeve is inserted into the guide groove, an upper convex edge and a lower convex edge are arranged on the outer wall of the outer sleeve at intervals along the axial direction, and the outer diameters of the upper convex edge and the lower convex edge are both larger than the width of the guide groove.
In the auxiliary tool for welding, the side wall of the upper end of the inner sleeve is further in threaded connection with a fastening bolt.
In the auxiliary tool for welding, the magnetic fixing member is a disk-shaped permanent magnet. The permanent magnet can adopt strong magnets such as neodymium iron boron magnet, so as to ensure the connection strength.
In foretell be used for welded auxiliary fixtures, the magnetism mounting includes first magnet and encircles first magnet and be the second magnet of cyclic annular setting, and wherein, first magnet is the permanent magnet, and the second magnet is the electro-magnet. The magnetic fixing piece is formed by combining a permanent magnet and an electromagnet, when the auxiliary tool is used, the electromagnet is in a power-off state firstly, the auxiliary tool is fixed through the attraction force of the permanent magnet, then the electromagnet is electrified, the connection stability of the auxiliary tool and the ammonia refrigeration pressure container is further improved through the electromagnet, and the welding precision is ensured; when needs are dismantled, break off the power supply with the electro-magnet earlier, be convenient for demolish of this auxiliary fixtures.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses a magnetism mounting on the supporting legs is fixed in on ammonia refrigeration pressure vessel's the outer wall, through the guide way sliding fit that sets up the shape in advance on sliding sleeve and the support body, makes the welding gun head wear to locate on the sliding sleeve and remove along with the guide way when the welding to guarantee the precision of weld mark.
2. The utility model discloses a sliding sleeve adopts coaxial sliding connection's outer sleeve and inner skleeve structure, and sets up the spring in the outer sleeve, and behind the inner skleeve was worn to locate by the welding gun head, operating personnel only need apply certain pressure to welding seam one side to the electric welding head when removing the electric welding along with the guide way, and inner skleeve and electric welding head can remove welding seam one side after the welding electrode loss promptly, guarantee the contact of welding electrode and welding seam to guarantee the continuity and the stability of welding seam.
Drawings
FIG. 1 is a schematic diagram of a configuration for ammonia refrigeration pressure vessel reconditioning;
FIG. 2 is a schematic structural view of a weld;
fig. 3 is a schematic structural diagram of the present invention;
FIG. 4 is a perspective view of the sliding sleeve;
FIG. 5 is a cross-sectional view of the sliding sleeve engaging the guide slot;
FIG. 6 is a schematic view of a magnetic mount configuration;
FIG. 7 is a schematic structural view of an auxiliary tool in the second embodiment;
fig. 8 is a schematic structural view of a magnetic fixing frame according to a second embodiment.
In the figure, 1, ammonia refrigeration pressure vessel; 11. cracking; 12. welding traces; 2. a stent body; 21. a guide groove; 3. supporting legs; 4. a magnetic mount; 41. a first magnet; 42. a second magnet; 5. a sliding sleeve; 51. an outer sleeve; 51a, an upper flange; 51b, a lower flange; 52. an inner sleeve; 52a, an annular shoulder; 52b, fastening bolts; 53. a spring.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 3, an auxiliary tool for welding, including support body 2 and sliding sleeve 5, wherein support body 2 is square plate-shaped, support body 2 is provided with four supporting legs 3 along circumference interval, the bottom of supporting leg 3 all is provided with magnetic magnetism mounting 4, it has dogleg shape guide way 21 to open on the support body 2, sliding sleeve 5 sliding connection is in guide way 21, during the use, adsorb magnetic fixing 4 of supporting leg 3 on the outer wall of ammonia refrigeration pressure vessel 1, make guide way 21 just right to crack department 11, wear to establish and be fixed in on sliding sleeve 5 with welder's electric welding head, make the tip of welding rod and ammonia refrigeration pressure vessel 1's outer wall support, only need during the welding to remove welder along guide way 21, can weld out standard dogleg shape welding trace 12 steadily.
Specifically, as shown in fig. 4 and 5, the sliding sleeve 5 includes an outer sleeve 51 and an inner sleeve 52, the outer sleeve 51 and the inner sleeve 52 are both hollow and cylindrical, the outer sleeve 51 is inserted into the guide groove 21, an outer wall of the outer sleeve 51 is provided with an upper convex edge 51a and a lower convex edge 51b which are arranged at intervals along the axial direction, outer diameters of the upper convex edge 51a and the lower convex edge 51b are both greater than a width of the guide groove 21, so that the upper convex edge 51a and the lower convex edge 51b can respectively abut against an upper end face and a lower end face of the support body 2 to form a limit, and the outer sleeve 51 can be stably matched with the guide groove 21 in a sliding manner. The inner sleeve 52 is coaxially and slidably connected in the outer sleeve 51, meanwhile, a spring 53 is further arranged in the outer sleeve 51, the spring 53 is sleeved on the outer wall of the inner sleeve 52, one end of the spring 53 is abutted against the inner sleeve 52, the other end of the spring 53 is abutted against the bottom wall of the outer sleeve 51, so that the spring 53 can push the inner sleeve 52 upwards, the inner wall of the bottom of the inner sleeve 52 is further provided with an annular convex shoulder 52a, the side wall of the upper end of the inner sleeve 52 is further in threaded connection with a fastening bolt, in this way, the electric welding head can be inserted into the inner sleeve 52, abutting against the annular shoulder 52a of the inner sleeve 52, and secured to the inner sleeve 52 by means of the fastening bolts 52b, at the same time, the welding wire can extend out of the inner sleeve 52 through the annular shoulder 52a and abut against the outer wall of the ammonia refrigeration pressure vessel 1, in the welding process, the welding gun is manually pressed, so that the contact stability with the outer wall of the ammonia refrigeration pressure container 1 can be still ensured after welding rods are consumed.
As shown in fig. 6, the magnetic fixing members 4 in this embodiment are each a permanent magnet in a disk shape.
Further, in order to ensure the sliding smoothness of the sliding sleeve 5, in this embodiment, the corners of the zigzag-shaped guide grooves 21 are both arc-shaped.
Example two
As shown in fig. 7 and 8, the present embodiment is basically the same as the first embodiment, except that the guide groove 21 is spiral in shape, so that a person can weld the outer wall of the ammonia refrigeration pressure vessel in a spiral shape through the guide groove 21. Moreover, in this embodiment, the structure of the magnetic fixture 4 is also different from that in the first embodiment, the magnetic fixture 4 includes a first magnet 41 and a second magnet 42, the first magnet 41 is disc-shaped, and the second magnet 42 surrounds the first magnet 41 and is annularly disposed, wherein the first magnet 41 is a permanent magnet, and the second magnet 42 is an electromagnet, so that the auxiliary fixture is firstly positioned on the outer wall of the ammonia refrigeration pressure container through the first magnet 41, after the auxiliary fixture is moved in place, the second magnet 42 is powered on, the connection strength is further improved through the second magnet 42, the stability is ensured, when the auxiliary fixture is detached, the second magnet 42 is only required to be closed firstly, and then the auxiliary fixture is taken down by hand, so that the detachment is more convenient and labor-saving.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms ammonia refrigeration pressure vessel 1, holder body 2, magnetic fixture 4, outer sleeve 51, inner sleeve 52, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. The utility model provides a be used for welded auxiliary fixtures, includes platelike support body (2), its characterized in that, a plurality of supporting legs (3) along support body (2) circumference interval distribution have on support body (2), the bottom of supporting legs (3) all is equipped with magnetic fixing spare (4), it has zigzag or spiral shape guide way (21) to open on support body (2), sliding connection has in guide way (21) and supplies welding rifle head male sliding sleeve (5).
2. Auxiliary tooling for welding according to claim 1, wherein the sliding sleeve (5) comprises an outer sleeve (51) and an inner sleeve (52), the outer sleeve (51) and the inner sleeve (52) are both hollow cylindrical, the inner sleeve (52) is coaxially connected in the outer sleeve (51) in a sliding manner, the inner wall of the bottom of the inner sleeve (52) is further provided with an annular shoulder (52a) for abutting against a welding torch head and allowing an electric welding wire to pass through, and a spring (53) pushing the inner sleeve (52) upwards is further arranged in the outer sleeve (51).
3. Auxiliary tooling for welding according to claim 1 or 2, characterized in that the corners of the fold-line shaped guide grooves (21) are arc-shaped.
4. The auxiliary tool for welding according to claim 2, wherein the outer sleeve (51) is inserted into the guide groove (21), an upper convex edge (51a) and a lower convex edge (51b) are arranged on the outer wall of the outer sleeve (51) at intervals along the axial direction, and the outer diameters of the upper convex edge (51a) and the lower convex edge (51b) are larger than the width of the guide groove (21).
5. The auxiliary tool for welding according to claim 4, characterized in that a fastening bolt (52b) is further screwed on the side wall of the upper end of the inner sleeve (52).
6. Auxiliary tool for welding according to claim 5, characterized in that said magnetic fixture (4) is a permanent magnet in the shape of a disc.
7. Auxiliary tool for welding according to claim 5, characterized in that the magnetic fixture (4) comprises a first magnet (41) and a second magnet (42) annularly surrounding the first magnet (41), wherein the first magnet (41) is a permanent magnet and the second magnet (42) is an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020077622.5U CN211564931U (en) | 2020-01-14 | 2020-01-14 | Be used for welded auxiliary fixtures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020077622.5U CN211564931U (en) | 2020-01-14 | 2020-01-14 | Be used for welded auxiliary fixtures |
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| CN211564931U true CN211564931U (en) | 2020-09-25 |
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| CN202020077622.5U Active CN211564931U (en) | 2020-01-14 | 2020-01-14 | Be used for welded auxiliary fixtures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172425A (en) * | 2021-05-18 | 2021-07-27 | 浙江炊大王炊具有限公司 | Welding device for arc-surface outer wall mandarin duck pot |
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2020
- 2020-01-14 CN CN202020077622.5U patent/CN211564931U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172425A (en) * | 2021-05-18 | 2021-07-27 | 浙江炊大王炊具有限公司 | Welding device for arc-surface outer wall mandarin duck pot |
| CN113172425B (en) * | 2021-05-18 | 2022-06-28 | 浙江炊大王炊具有限公司 | Welding device for arc-surface outer wall mandarin duck pot |
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