CN217234137U - Shoulder long circle inner hole fixing bush - Google Patents
Shoulder long circle inner hole fixing bush Download PDFInfo
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- CN217234137U CN217234137U CN202220618614.6U CN202220618614U CN217234137U CN 217234137 U CN217234137 U CN 217234137U CN 202220618614 U CN202220618614 U CN 202220618614U CN 217234137 U CN217234137 U CN 217234137U
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- inner hole
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Abstract
The application provides area shoulder circle hole fixed bushing belongs to the technological equipment technical field, and this area shoulder circle hole fixed bushing includes: the outer circle of the bushing, the cylindrical structure and the step shoulder of the bushing are overlapped from bottom to top, and the bushing is provided with a long round inner hole in a penetrating mode along the height direction; the long round inner hole is a waist-shaped hole; the outer circle is of a cylindrical structure, and the outer diameter of the outer circle of the bushing is larger than that of the cylindrical structure and smaller than that of the step shoulder of the bushing; a positioning circular groove is formed in the step shoulder of the bushing along the height direction, and the circle center of the positioning circular groove is located on the extension line of the long axis of the long round inner hole; the side surface of the cylindrical structure, the upper bottom surface of the excircle of the bush and the lower bottom surface of the step shoulder of the bush form a tool withdrawal groove. The application increases the application range of the long round inner hole fixing bushing, reduces the diameter of the outer surface of a cylinder pressed into other parts, and the position of the end face of the bushing is fixed and controllable.
Description
Technical Field
The application belongs to the technical field of technological equipment, and particularly relates to a shouldered long-circle inner hole fixing bushing.
Background
At present, the outer surface of the existing long round inner hole fixing bushing is a cylindrical surface, the inner hole is a long round hole, and the outer surface of the cylinder is provided with the bushing of a positioning groove. The diameter of the cylindrical outer surface of the long round inner hole fixing bush is larger, the aperture of a round hole needing to be pressed into a part is larger, and the pressed part is not suitable for manufacturing a hole with larger inner diameter. The long round inner hole fixing bush is not positioned in the axial direction of the bush after being pressed into other parts, and the end surface position of the bush is not fixed. When the positioner of part of the technological equipment is used for positioning, the end face of the bushing needs to have an accurate position, and other positioners cannot be pressed into the bushing with an overlarge outer diameter.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the diameter of the cylinder surface of current long circle hole fixed pressing in other parts is great, some locators can't press in the position of the terminal surface of the too big bush of external diameter and bush unfixed uncontrollable, this application provides a shoulder long circle hole fixed bush, technical scheme is as follows:
a shoulder prolate circle bore fixation bushing, comprising: the shoulder-mounted long circular inner hole fixing bushing is provided with a long circular inner hole in a penetrating mode along the height direction, and the long circular inner hole is a waist-shaped hole;
the outer circle of the bushing is of a cylindrical structure, and the outer diameter of the outer circle of the bushing is larger than that of the cylindrical structure and smaller than that of the step shoulder of the bushing;
a positioning circular groove is formed in the step shoulder of the bushing along the height direction, and the circle center of the positioning circular groove is located on the extension line of the long axis of the long round inner hole;
the side surface of the cylindrical structure, the upper bottom surface of the excircle of the bush and the lower bottom surface of the step shoulder of the bush form a tool withdrawal groove.
Optionally, the outer diameter of the outer circle of the bushing is 10 mm to 30 mm.
Optionally, the bushing step shoulder has an outer diameter of 20 mm to 50 mm.
Optionally, the diameter of the positioning circular groove is 3 mm to 6 mm;
the straight line distance between the center of the positioning circular groove and the center of the excircle of the bushing is 9-25 mm.
Optionally, the shoulder oblong internal bore fixation insert has a total height of 8 mm to 40 mm.
Optionally, the bushing step shoulder has a thickness of 2 mm to 20 mm;
the width of the bushing step shoulder is 10 mm to 40 mm.
Optionally, the depth of the tool withdrawal groove is 1 mm to 5 mm;
the width of the tool withdrawal groove is 2 mm to 8 mm.
Optionally, the distance between the centers of the two circles of the long round inner hole is 1 mm to 5 mm,
the two circle radiuses of the long circle inner hole are 2 mm to 12 mm;
the width of the long round inner hole groove is 4 mm to 24 mm.
The beneficial effect of this application is: the application increases the application range of the long round inner hole fixing bushing and provides the shoulder long round inner hole fixing bushing which is one step shoulder more than the original long round inner hole fixing bushing. The diameter of the outer surface of the cylinder pressed into other parts is reduced, and the position of the end face of the bushing is fixed and controllable. The problem of some craft equipment locator need the bush terminal surface have accurate position when the location and some locator can't press in the too big bush of external diameter is solved.
Drawings
FIG. 1 is an isometric view of a shoulder oblong internal bore retaining bushing as disclosed herein;
FIG. 2 is an elevation view of a shouldered prolate round internal bore retaining bushing as disclosed herein;
FIG. 3 is a top view of a shouldered prolate circular bore retaining bushing as disclosed herein.
Detailed Description
The application provides a shoulder prolate circle hole fixed bushing, as shown in fig. 1, shoulder prolate circle hole fixed bushing includes: the long circular inner hole fixing bush is characterized by comprising a bush outer circle 1, a cylindrical structure 6 and a bush step shoulder 2 which are overlapped from bottom to top, wherein a long circular inner hole 4 penetrates through the shouldered long circular inner hole fixing bush along the height direction, and the long circular inner hole 4 is a waist-shaped hole;
the outer circle 1 of the bush is of a cylindrical structure, and the outer diameter of the outer circle 1 of the bush is larger than that of the cylindrical structure 6 and smaller than that of the step shoulder 2 of the bush;
a positioning circular groove 5 is formed in the bushing step shoulder 2 in the height direction, and the circle center of the positioning circular groove 5 is located on the extension line of the long axis of the long round inner hole 4;
the side surface of the cylindrical structure 6, the upper bottom surface of the excircle 1 of the bush and the lower bottom surface of the step shoulder 2 of the bush form a tool withdrawal groove 3.
As shown in FIGS. 2 and 3, the outer diameter φ 1 of the outer circle 1 of the bushing is 10 mm to 30 mm.
The outer diameter phi 2 of the bushing step shoulder 2 is 20 mm to 50 mm.
The diameter phi 3 of the positioning circular groove 5 is 3 mm to 6 mm;
the straight line distance L between the center of the positioning circular groove 5 and the center of the excircle of the bush is 9-25 mm.
The total height H of the shoulder prolate circular inner hole fixing bush is 8 mm to 40 mm.
The thickness h of the bushing step shoulder 2 is 2 mm to 20 mm;
the width B of the bushing step shoulder 2 is 10 mm to 40 mm.
The depth a of the tool withdrawal groove 3 is 1 mm to 5 mm;
the width b of the relief groove 3 is 2 mm to 8 mm.
The distance L1 between the centers of the two circles of the long round inner hole 4 is 1 mm to 5 mm,
the two circle radiuses R of the long circle inner hole 4 are 2 mm to 12 mm;
the slot width b1 of the oblong inner hole 4 is 4 mm to 24 mm.
Referring to fig. 1, the process of using the shoulder prolate circular inner hole fixing bushing comprises the following steps: firstly, preparing a hole matched with the excircle 1 of the bush and a hole matched with the positioning circular groove 5 on a matched part; secondly, pressing the bushing into the part to form hole-shaft fit, wherein the lower surface of the step shoulder 2 of the bushing is tightly attached to the surface of the part; and thirdly, pressing a matched pin fixing bush into the matching hole of the positioning circular groove 5 to obtain the long round inner hole fixing bush with the controlled end surface 2 position, the controlled direction of the long round hole 4 and the relatively small size of the excircle 1.
Claims (8)
1. The utility model provides a long circle of bore fixing bush of shoulder which characterized in that, the long circle of bore fixing bush of shoulder includes: the long circular inner hole fixing bushing is characterized by comprising a bushing outer circle (1), a cylindrical structure (6) and a bushing step shoulder (2) which are overlapped from bottom to top, wherein a long circular inner hole (4) penetrates through the shouldered long circular inner hole fixing bushing along the height direction, and the long circular inner hole (4) is a kidney-shaped hole;
the outer circle (1) of the bushing is of a cylindrical structure, and the outer diameter of the outer circle (1) of the bushing is larger than that of the cylindrical structure (6) and smaller than that of the step shoulder (2) of the bushing;
the bushing step shoulder (2) is provided with a positioning circular groove (5) along the height direction, and the circle center of the positioning circular groove (5) is positioned on the extension line of the long axis of the long round inner hole (4);
the side surface of the cylindrical structure (6), the upper bottom surface of the outer circle (1) of the bushing and the lower bottom surface of the step shoulder (2) of the bushing form a tool withdrawal groove (3).
2. An oblong internal bore fixation bushing according to claim 1, characterized in that the external diameter of the bushing outer circle (1) is 10 to 30 mm.
3. The shouldered prolate circular bore fixation bushing as claimed in claim 1, wherein the bushing step shoulder (2) has an outer diameter of 20 mm to 50 mm.
4. The shoulder prolate circular inner bore fixation bushing according to claim 1,
the diameter of the positioning circular groove (5) is 3-6 mm;
the straight line distance between the center of the positioning circular groove (5) and the center of the excircle of the bushing is 9-25 mm.
5. The shouldered prolate circular internal bore fixation bushing of claim 1,
the total height of the shoulder long round inner hole fixing bush is 8 mm to 40 mm.
6. The shouldered prolate circular internal bore fixation bushing of claim 1,
the thickness of the bushing step shoulder (2) is 2 mm to 20 mm;
the width of the bushing step shoulder (2) is 10 mm to 40 mm.
7. The shouldered prolate circular internal bore fixation bushing of claim 1,
the depth of the tool withdrawal groove (3) is 1 mm to 5 mm;
the width of the tool withdrawal groove (3) is 2 mm to 8 mm.
8. The shouldered prolate circular internal bore fixation bushing of claim 1,
the distance between the centers of the two circles of the long round inner hole (4) is 1 mm to 5 mm,
the two circle radiuses of the long circle inner hole (4) are 2 mm to 12 mm;
the width of the long round inner hole (4) is 4-24 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220618614.6U CN217234137U (en) | 2022-03-21 | 2022-03-21 | Shoulder long circle inner hole fixing bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220618614.6U CN217234137U (en) | 2022-03-21 | 2022-03-21 | Shoulder long circle inner hole fixing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234137U true CN217234137U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220618614.6U Active CN217234137U (en) | 2022-03-21 | 2022-03-21 | Shoulder long circle inner hole fixing bush |
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| Country | Link |
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| CN (1) | CN217234137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115635267A (en) * | 2022-09-30 | 2023-01-24 | 陕西飞机工业有限责任公司 | Long-circular-hole skin lug positioner and method based on laser tracker installation |
-
2022
- 2022-03-21 CN CN202220618614.6U patent/CN217234137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115635267A (en) * | 2022-09-30 | 2023-01-24 | 陕西飞机工业有限责任公司 | Long-circular-hole skin lug positioner and method based on laser tracker installation |
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