CN216227788U - Die for girth welding between cylindrical thin-wall part and annular part - Google Patents
Die for girth welding between cylindrical thin-wall part and annular part Download PDFInfo
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- CN216227788U CN216227788U CN202122478298.5U CN202122478298U CN216227788U CN 216227788 U CN216227788 U CN 216227788U CN 202122478298 U CN202122478298 U CN 202122478298U CN 216227788 U CN216227788 U CN 216227788U
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Abstract
The utility model discloses a die for girth welding between a cylindrical thin-wall part and an annular part, which comprises a base, a supporting ring and a pressing block, wherein the base is provided with a plurality of grooves; a circular groove is formed in the upper surface of the base, the inner diameter of the groove is the same as the outer diameter of the large end of the grid electrode lead-out ring, a circular limiting groove is formed in the groove, and the limiting groove is coaxial with the groove; the supporting ring comprises a cylindrical base body and a plurality of supporting blocks, the plurality of supporting blocks are uniformly arranged on the upper surface of the base body in the circumferential direction and are of a cylindrical structure, and the lower ends of the supporting blocks are connected with the base body through connecting arms; the supporting block is of a barb structure, and the inner wall of the supporting block is provided with a downward convergent taper; the supporting ring is fixed in a limiting groove of the base; the pressing block is in an inverted cone frustum shape and comprises a cylindrical section and a conical section, the outer wall of the cylindrical section is matched with the inner wall of the grid support cylinder, and the taper of the conical section is matched with the taper of the inner wall of the support block of the support ring; the pressing block is connected with the base. The utility model can ensure that the welding part is tightly matched without a gap, the welding surface is smooth, and the workpiece is easy to take out after welding.
Description
Technical Field
The utility model relates to the technical field of welding, in particular to a die for girth welding between a cylindrical thin-wall part and an annular part.
Background
In the existing electron tube generation process, the connection between the cylindrical thin-wall part with the opening and the annular leading-out ring mostly adopts the brazing or argon arc welding process. The solder used for brazing is silver-copper solder, and the solder is melted at high temperature to weld the two parts together; however, the electron tube has high working temperature, large load and severe working environment, if the temperature is high, the solder of the electron tube can be evaporated, the insulating property between the electrodes is reduced, ignition between the electrodes of the electron tube is caused, and the electron tube leaks gas in severe cases. Therefore, the brazing process of the thin-wall grid support cylinder with the partial tubular middle opening and the grid lead-out ring is changed into an argon arc welding process; however, because the part has tolerance and deformation, when the part is welded by using the existing argon arc welding die and has a certain tolerance range, when the size of the part is larger or has deformation, a gap exists at the welded part, and after argon arc welding, the problems of unsmooth welding line, unsmooth welding surface, burr, large deformation of the welded part and the like exist, so that the welding quality is influenced; when the size of the part is smaller, the problems that the support ring cannot be assembled in place, the demoulding is difficult after argon arc welding and the like occur. Therefore, there is a need for an improved argon arc welding mold structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that a gap is generated between parts at a welding part due to tolerance or deformation of the parts in the prior art, the utility model provides a die for girth welding between a cylindrical thin-wall part and an annular part, and aims to improve the welding quality.
In order to achieve the technical purpose, the utility model adopts the technical scheme that:
a die for girth welding between a cylindrical thin-wall part and an annular part comprises a base, a supporting ring and a pressing block;
a circular groove is formed in the upper surface of the base, the inner diameter of the circular groove is the same as the outer diameter of the large end of the grid electrode lead-out ring, a circular limiting groove is formed in the groove, and the limiting groove is coaxial with the groove;
the supporting ring comprises a cylindrical base body and a plurality of supporting blocks, the plurality of supporting blocks are uniformly arranged on the upper surface of the base body in the circumferential direction and are of a cylindrical structure, and the lower ends of the supporting blocks are connected with the base body through connecting arms; the supporting block is of a barb structure, and the inner wall of the supporting block is provided with a downward convergent taper; the supporting ring is fixed in a limiting groove of the base through a fastener A;
the pressing block is in an inverted cone frustum shape and comprises a cylindrical section and a conical section, the outer wall of the cylindrical section is matched with the inner wall of the grid support cylinder, and the taper of the conical section is matched with the taper of the inner wall of the support block of the support ring; the pressing block is connected with the base through a fastener B.
Further, the taper is in the range of 1-10 °.
Preferably, the taper is 3 °.
Further, the wall thickness of the connecting arm is smaller than the maximum wall thickness of the brace block.
Furthermore, a central stepped hole is formed in the center of the base, a central threaded hole is formed in the center of the pressing block, the central stepped hole and the central threaded hole are matched with the fastener B, a through hole is formed in the center of the base body of the supporting ring, and the caliber of the through hole is larger than the outer diameter of the fastener B.
Furthermore, a second group of step holes are formed in the lower portion, corresponding to the limiting groove area, of the base, a threaded hole A is formed in the base body of the supporting ring, and the second group of step holes are matched with the threaded hole A and the fastening piece A.
Further, the number of the threaded holes A is the same as that of the second group of stepped holes, the second group of stepped holes are uniformly distributed on the same circumference a, the threaded holes A are uniformly distributed on the same circumference b, and the diameters of the circumference a and the circumference b are the same.
Preferably, the number of the threaded holes a and the number of the second group of stepped holes are 4.
Further, the number of the supporting blocks is 4-10.
Preferably, the number of the supporting blocks is 8.
Compared with the prior art, the utility model has the beneficial effects that:
1) the coaxial design of the groove, the support ring and the pressing block of the base is convenient for accurate positioning of the cylindrical thin-wall part and the annular part;
2) the inner wall of the supporting block of the supporting ring and the outer wall of the conical section of the pressing block are provided with matched tapers, the pressing block is pulled downwards to enable the supporting block and the connecting arm to expand outwards and deform, and further the cylindrical thin-wall part and the annular part are driven to expand, so that the welding part is matched tightly and has no gap and deformation, the welding surface is smooth, and the welding quality is high; the pressing block is released, so that a gap can be generated between the welded part and the supporting ring, and the demoulding and the taking of the part are convenient;
3) the pressing block can be quickly screwed or unscrewed, and the welding efficiency is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a structural assembly of an embodiment of the present invention;
FIG. 2a is a top view of a support ring in an embodiment of the present invention;
FIG. 2b is a cross-sectional view of the hinge ring shown in FIG. 2 a;
reference numerals: 1-grid supporting cylinder, 2-pressing block, 21-cylindrical section, 22-conical section, 23-central threaded hole, 3-supporting ring, 31-base body, 32-supporting block, 33-threaded hole A, 34-through hole, 35-connecting arm, 4-grid leading-out ring, 5-fastening piece A, 6-fastening piece B, 7-base, 71-groove, 72-limiting groove, 73-central step hole and 74-second group of step holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
A die for girth welding between a cylindrical thin-wall part and an annular part comprises a base 7, a supporting ring 3 and a pressing block 2; a circular groove 71 is formed in the upper surface of the base 7, the inner diameter of the circular groove 71 is the same as the outer diameter of the large end of the gate lead-out ring 4, a circular limiting groove 72 is formed in the groove 71, and the limiting groove 72 is coaxial with the groove 71;
the supporting ring 3 comprises a cylindrical base 31 and a plurality of supporting blocks 32, the plurality of supporting blocks 32 are uniformly arranged on the upper surface of the base 31 in the circumferential direction and are of a cylindrical structure, the lower ends of the supporting blocks 32 are connected with the base 31 through connecting arms 35, the number of the supporting blocks can be 4-10, and is preferably 8; the supporting block 32 is of a barb structure, the inner wall of the supporting block 32 is provided with a downward convergent taper, the wall thickness of the connecting arm 35 is smaller than the maximum wall thickness of the supporting block 32, and the supporting block 32 can expand/converge to deform under the extrusion action of external force; the supporting ring 3 is fixed in a limiting groove 72 of the base 7 through a fastener A;
the pressing block 2 is in an inverted cone frustum shape and comprises a cylindrical section 21 and a conical section 22, the outer wall of the cylindrical section 21 is matched with the inner wall of the grid support cylinder 1, the taper of the conical section 22 is matched with the taper of the inner wall of the support block 32 of the support ring 3, the taper range is 1-10 degrees, the taper is 3 degrees, and the pressing block 2 is connected with the base 7 through a fastening piece B6.
The center of base 7 is equipped with central step hole 73, central step hole 73 adaptation fastener B6, the lower part that base 7 corresponds in the spacing groove 72 region is provided with second group step hole 74, second group step hole 74 evenly distributed is on same circumference a, second group step hole 74 and fastener A5 adaptation.
The outer diameter of the base body 31 of the supporting ring 3 is the same as the inner diameter of the limiting groove 72, a threaded hole A33 is formed in the base body 31, and the threaded hole A33 is matched with a fastener A5; the number of the threaded holes A33 is the same as that of the second group of stepped holes 74, preferably, the number of the threaded holes A and that of the second group of stepped holes are 2, 3 and 4; the threaded holes A33 are uniformly distributed on the same circumference b, and the diameter of the circumference a is the same as that of the circumference b; the supporting ring 3 is fixed in the limit groove 72 of the base 7 through a fastener A5; a through opening 34 is further formed in the center of the base body 31, and the caliber of the through opening 34 is larger than the outer diameter of the fastener A5.
The center of the press block 2 is provided with a central threaded hole 23, the central threaded hole 23 is matched with a fastener B6, and the press block 2 penetrates through the support ring 3 through a fastener B6 and is connected with the base 7.
When in use, the supporting ring 3 is firstly placed in the circular limiting groove 71 of the base 7, the fastening piece A5 is used for fixing the supporting ring 3 on the base 7, then the conical end of the pressing block 2 is placed in the supporting block 32 of the supporting ring 3, the pressing block 2 is connected with the base 7 through the fastening piece B6, and the pressing block is not screwed down at first; sequentially placing a grid supporting cylinder 1 and a grid leading-out ring 4 according to the diagram, tightening a bolt B6, pulling a pressing block 2 to move downwards by tightening a bolt B6, expanding a supporting block 32 of a supporting ring 3, driving the grid supporting cylinder 1 with an opening to expand, and finally enabling the welding part of the grid supporting cylinder 1 and the grid leading-out ring 4 to be matched tightly without a gap, wherein the smaller the conicity of the supporting block and the pressing block is, the more precise the adjustment is; after the welding is finished and the cooling is finished, the bolt B6 is firstly unscrewed, the supporting block 32 of the supporting ring 3 is converged, a gap is generated between the grid supporting cylinder 1 and the supporting ring 3, and the welded part can be easily taken out.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a mould to girth welding between cylindrical thin wall part and cyclic annular part which characterized in that: comprises a base (7), a supporting ring (3) and a pressing block (2);
a circular groove (71) is formed in the upper surface of the base (7), the inner diameter of the circular groove (71) is the same as the outer diameter of the large end of the grid electrode lead-out ring (4), a circular limiting groove (72) is formed in the groove (71), and the limiting groove (72) is coaxial with the groove (71);
the supporting ring (3) comprises a cylindrical base body (31) and a plurality of supporting blocks (32), the supporting blocks (32) are uniformly arranged on the upper surface of the base body (31) in the circumferential direction and are of a cylindrical structure, and the lower ends of the supporting blocks (32) are connected with the base body (31) through connecting arms (35); the supporting block (32) is of a barb structure, and the inner wall of the supporting block (32) is provided with a downward convergent taper; the supporting ring (3) is fixed in a limiting groove of the base (7) through a fastener A (5);
the pressing block (2) is in an inverted cone frustum shape and comprises a cylindrical section (21) and a conical section (22), the outer wall of the cylindrical section (21) is matched with the inner wall of the grid supporting cylinder (1), and the taper of the conical section (22) is matched with the taper of the inner wall of a supporting block (32) of the supporting ring (3); the pressing block (2) is connected with the base (7) through a fastener B (6).
2. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 1, characterized in that: the range of the taper is 1-10 degrees.
3. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 2, characterized in that: the taper is 3 °.
4. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 1, characterized in that: the wall thickness of the connecting arm (35) is smaller than the maximum wall thickness of the brace block (32).
5. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 1, characterized in that: the center of base (7) is equipped with central step hole (73), the center of briquetting (2) is provided with central screw hole (23), central step hole (73), central screw hole (23) adaptation fastener B (6), through hole (34) have been seted up at base member (31) center of propping ring (3), and the bore of through hole (34) is greater than the external diameter of fastener B.
6. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 1, characterized in that: the lower part of the base (7) in the corresponding limiting groove (72) area is provided with a second group of step holes (74), a threaded hole A (33) is arranged in the base body (31) of the supporting ring (3), and the second group of step holes (74) are matched with the threaded hole A (33) and the fastening piece A.
7. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 6, wherein: the number of the threaded holes A (33) is the same as that of the second group of stepped holes (74), the second group of stepped holes (74) are uniformly distributed on the same circumference a, the threaded holes A (33) are uniformly distributed on the same circumference b, and the diameters of the circumference a and the circumference b are the same.
8. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 7, wherein: the number of the threaded holes A (33) and the number of the second group of stepped holes (74) are 4.
9. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 1, characterized in that: the number of the supporting blocks (32) is 4-10.
10. The die for girth welding between a cylindrical thin-walled part and a ring-shaped part according to claim 9, characterized in that: the number of the supporting blocks (32) is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122478298.5U CN216227788U (en) | 2021-10-14 | 2021-10-14 | Die for girth welding between cylindrical thin-wall part and annular part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122478298.5U CN216227788U (en) | 2021-10-14 | 2021-10-14 | Die for girth welding between cylindrical thin-wall part and annular part |
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| CN216227788U true CN216227788U (en) | 2022-04-08 |
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| CN202122478298.5U Active CN216227788U (en) | 2021-10-14 | 2021-10-14 | Die for girth welding between cylindrical thin-wall part and annular part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302046A (en) * | 2022-07-29 | 2022-11-08 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
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2021
- 2021-10-14 CN CN202122478298.5U patent/CN216227788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302046A (en) * | 2022-07-29 | 2022-11-08 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
| CN115302046B (en) * | 2022-07-29 | 2023-11-24 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
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