CN216421511U - Precision positioning fixture for welding - Google Patents
Precision positioning fixture for welding Download PDFInfo
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- CN216421511U CN216421511U CN202122725364.4U CN202122725364U CN216421511U CN 216421511 U CN216421511 U CN 216421511U CN 202122725364 U CN202122725364 U CN 202122725364U CN 216421511 U CN216421511 U CN 216421511U
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Abstract
The utility model belongs to the technical field of the mechanical fixture design, especially, relate to a precision positioning anchor clamps are used in welding. The method comprises the following steps: the base, gland nut, the spacer, wherein, the base is tubular structure and the lateral wall is provided with the window and is used for the welding, place in the hole of base by welding piece oil inlet and the internal diameter of base and the excircle clearance fit 6H 6H by welding piece oil inlet, by the conical surface of welding piece blade and by the conical surface contact of welding piece oil inlet, the spacer cover is on by welding piece blade, the internal diameter of base and the external diameter clearance fit 6H 6H of spacer, gland nut and the female connection of base are and be located the spacer top and be used for compressing tightly the spacer, the restriction is by welding piece blade axial displacement. The precise positioning effect of the matching surface of the blade of the welded part and the oil inlet of the welded part is realized.
Description
Technical Field
The utility model belongs to the technical field of the mechanical fixture design, especially, relate to a welding is with precision positioning anchor clamps.
Background
A plurality of assemblies in an aviation oil delivery pump and an oil supply pump need to be welded together by two or more parts and are influenced by the structure and the length of the parts, and if the parts are not positioned by a precision positioning clamp for welding, the relative position precision of the two parts cannot be ensured, and the product performance is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a precision positioning anchor clamps are used in welding to solve the poor problem of part relative position when conventional direct welding.
The technical scheme of the utility model is that:
a precision positioning jig for welding, which is used for welding a workpiece oil inlet 1 and a workpiece blade 5, comprising: base 2, gland nut 3, positioning pad 4, wherein, base 2 is tubular structure and the lateral wall is provided with the window and is used for the welding, place in base 2's hole by welding piece oil inlet 1 and base 2's internal diameter and by welding piece oil inlet 1's excircle clearance fit 6H 6H, by welding piece blade 5's the conical surface and by welding piece oil inlet 1's conical surface contact, positioning pad 4 cover is on by welding piece blade 5, the internal diameter clearance fit 6H 6H of base 2 and positioning pad 4's external diameter, gland nut 3 is connected with base 2's hole and is located positioning pad 4 top and is used for compressing tightly positioning pad 4, restriction is by welding piece blade 5 axial displacement.
Further, the bottom of the inner hole of the base 2 is provided with a clearance groove.
Furthermore, the inner hole of the positioning gasket 4 is in clearance fit with the excircle of the welded piece blade 5 by H7/g6, and the positioning gasket 4 is made of a copper alloy gasket to prevent the end face of the welded piece blade 5 from being crushed.
Further, the excircle of the positioning gasket 4 comprises a big end and a small end, wherein the big end is a positioning surface, and the inner diameter of the base 2 is in clearance fit with the excircle of the big end for 6H/6H.
Furthermore, the thickness of the large end of the positioning gasket 4 is 5-6mm, so that accurate positioning is realized.
Further, the diameter of the small end of the spacer 4 is two thirds of the diameter of the end face of the blade 5 to be welded.
The utility model has the advantages that: the welding is with accurate positioning fixture, screws up and compresses tightly the screw thread, and terminal surface compresses tightly locating washer up end under gland nut, and terminal surface compresses tightly by welding piece blade up end under the locating washer, and the base terminal surface has restricted by welding piece oil inlet axial displacement to realize by welding piece blade and by welding piece oil inlet fitting surface accurate positioning effect.
Drawings
Fig. 1 is a sectional view of the precision positioning jig for welding of the present invention.
Fig. 2 is a front view of the precision positioning fixture for welding of the present invention.
Wherein, 1 by welding piece oil inlet, 2 bases, 3 gland nuts, 4 locating shim, 5 by welding piece blade.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1 and 2, a precision positioning jig for welding, which is used for welding an oil inlet 1 of a workpiece to be welded and a blade 5 of the workpiece to be welded, comprises: base 2, gland nut 3, positioning pad 4, wherein, base 2 is tubular structure and the lateral wall is provided with the window and is used for the welding, place in base 2's hole by welding piece oil inlet 1 and base 2's internal diameter and by welding piece oil inlet 1's excircle clearance fit 6H 6H, by welding piece blade 5's the conical surface and by welding piece oil inlet 1's conical surface contact, positioning pad 4 cover is on by welding piece blade 5, positioning pad 4's external diameter and base 2's internal diameter clearance fit 6H 6H, gland nut 3 is connected with base 2's hole and is located positioning pad 4 top and is used for compressing tightly positioning pad 4, restriction is by welding piece blade 5 axial displacement. The external thread of gland nut 3 and the internal thread connection of base 2 will be compressed tightly by welding piece blade 5 axial, and the restriction is by welding piece blade 5 axial displacement, and base 2 is placed perpendicularly on welded platform.
The bottom of the inner hole of the base 2 is provided with a clearance groove.
The inner hole of the positioning gasket 4 is in clearance fit with the excircle of the welded piece blade 5 by H7/g6, and the positioning gasket 4 is made of a copper alloy gasket to prevent the end face of the welded piece blade 5 from being crushed.
Preferably, the excircle of the positioning gasket 4 comprises a big end and a small end, wherein the big end is a positioning surface, and the excircle of the big end is in clearance fit with the inner diameter of the base 2 for 6H/6H.
Preferably, the thickness of the large end of the positioning spacer 4 is 5-6mm for achieving accurate positioning.
Preferably, the diameter of the small end of the spacer 4 is two thirds of the diameter of the end face of the blade 5 to be welded.
The working principle is as follows:
during the installation, base 2's hole and by welding piece oil inlet 1's excircle clearance fit, put into base 2 bottom hole by welding piece oil inlet 1, place on by welding piece oil inlet by welding piece blade 5, base 2's hole and spacer 4's excircle clearance fit, spacer 4 lower terminal surface compresses tightly by welding piece blade terminal surface, 3 terminal surface compression spacer 4 up end under gland nut, gland nut 3's external screw thread and base 2's internal thread connection, screw up gland nut 3, make by welding piece blade 5 fitting surface and by producing the precision fit between the welding piece 1, thereby the realization is by welding piece oil inlet 1 with by welding piece blade 5 precision positioning effect. As shown in fig. 1.
Claims (6)
1. A precision positioning fixture for welding, characterized in that the fixture is used for welding an oil inlet (1) of a workpiece to be welded and a blade (5) of the workpiece to be welded, and the fixture comprises: base (2), gland nut (3), locating washer (4), wherein, base (2) are tube-shape structure and the lateral wall is provided with the window and is used for the welding, place in the hole of base (2) and the internal diameter of base (2) and the excircle clearance fit 6H/6H of being welded piece oil inlet (1) by welding piece oil inlet (1), the conical surface of being welded piece blade (5) and the conical surface contact of being welded piece oil inlet (1), locating washer (4) cover is on being welded piece blade (5), the internal diameter of base (2) and the external diameter clearance fit 6H/6H of locating washer (4), gland nut (3) and the hole connection of base (2) are and be located locating washer (4) top and be used for compressing tightly locating washer (4), restriction is welded piece blade (5) axial displacement.
2. The precision positioning jig for welding according to claim 1, characterized in that the bottom of the inner hole of the base (2) is provided with a cutter recess.
3. The precision positioning fixture for welding as claimed in claim 1, wherein the inner hole of the positioning shim (4) is in clearance fit with the excircle of the blade (5) to be welded by H7/g6, and the positioning shim (4) is made of copper alloy shim to prevent the end face of the blade (5) to be welded from being crushed.
4. The precision positioning fixture for welding according to claim 1, characterized in that the outer circle of the positioning gasket (4) comprises a big end and a small end, wherein the big end is a positioning surface, and the inner diameter of the base (2) is in clearance fit with the outer circle of the big end for 6H/6H.
5. The precision positioning jig for welding according to claim 4, characterized in that the thickness of the large end of the positioning spacer (4) is 5-6mm for realizing precise positioning.
6. The welding precision positioning jig according to claim 4, characterized in that the diameter of the small end of the positioning shim (4) is two thirds of the diameter of the end face of the blade (5) to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725364.4U CN216421511U (en) | 2021-11-05 | 2021-11-05 | Precision positioning fixture for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725364.4U CN216421511U (en) | 2021-11-05 | 2021-11-05 | Precision positioning fixture for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216421511U true CN216421511U (en) | 2022-05-03 |
Family
ID=81336932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122725364.4U Active CN216421511U (en) | 2021-11-05 | 2021-11-05 | Precision positioning fixture for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216421511U (en) |
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2021
- 2021-11-05 CN CN202122725364.4U patent/CN216421511U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tian Jianbin Inventor after: Qin Shihao Inventor after: Li Xuemin Inventor after: Cui Dongpeng Inventor after: Yan Hongni Inventor after: Li Hualong Inventor after: Zhu Changqi Inventor after: Lin Hailong Inventor after: Wang Kunpeng Inventor after: Shanhao Inventor before: Tian Jianbin Inventor before: Qin Shihao Inventor before: Li Xuemin Inventor before: Cui Dongpeng Inventor before: Yan Hongni Inventor before: Li Hualong Inventor before: Zhu Changqi Inventor before: Lin Hailong Inventor before: Wang Kunpeng Inventor before: Shanhao |