CN216371691U - Tubular workpiece internal stay frock - Google Patents
Tubular workpiece internal stay frock Download PDFInfo
- Publication number
- CN216371691U CN216371691U CN202122859768.2U CN202122859768U CN216371691U CN 216371691 U CN216371691 U CN 216371691U CN 202122859768 U CN202122859768 U CN 202122859768U CN 216371691 U CN216371691 U CN 216371691U
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- China
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- mounting flange
- mandrel
- tubular workpiece
- limiting step
- pressing
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Abstract
The utility model provides an internal support tool for a tubular workpiece, and belongs to the technical field of metal processing. The elastic part is in an arc shape with a notch, and guide inclined planes are arranged on the pressing sleeve, the limiting step and the abutting part of the mounting flange and the elastic part; the relative position between the mandrel and the mounting flange can be fixed. The utility model has the advantages of high temperature resistance, light disassembly and assembly and the like.
Description
Technical Field
The utility model belongs to the technical field of metal processing, and relates to an inner support tool for a tubular workpiece.
Background
When a tubular workpiece is subjected to outer wall grinding, polishing and other processing, the workpiece is clamped and fixed from two ends of the tubular workpiece, interference is easily caused on a grinding and polishing wheel, an internal supporting mode is ideal, a general inner supporting mode is an inflatable shaft, but the inflatable shaft is weak in high temperature resistance, and the inflatable shaft is easily damaged in the polishing and polishing process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tubular workpiece inner supporting tool aiming at the problems in the prior art, and the technical problem to be solved by the utility model is how to carry out efficient inner supporting on a tubular workpiece.
The purpose of the utility model can be realized by the following technical scheme: the tubular workpiece inner support tool is characterized by comprising a mounting flange, a mandrel and a plurality of compression sleeves, wherein the mandrel is longitudinally and slidably connected to the mounting flange, the compression sleeves are slidably connected to the mandrel, a limiting step is arranged at the top of the mandrel, elastic pieces are arranged between the limiting step and the compression sleeves adjacent to the limiting step, between the adjacent compression sleeves and between the compression sleeve at the bottommost and the mounting flange, the elastic pieces are arc-shaped and provided with notches, and guide inclined planes are arranged at the abutting positions of the elastic pieces on the compression sleeves, the limiting step and the mounting flange; the relative position between the mandrel and the mounting flange can be fixed.
Further, the mandrel is rotatably connected with a thread head through a bearing, an installation cylinder is fixedly arranged on the installation flange, and the thread head is in threaded connection with the installation cylinder.
Furthermore, a hand wheel positioned below the mounting flange is fixedly arranged on the screw head.
Furthermore, the elastic piece is externally provided with an anti-skid groove or an anti-skid bulge.
Loosening the threaded heads to enable the elastic parts to contract until the diameters of the elastic parts are smaller than the diameter of an inner hole of a workpiece to be fixed, enabling the diameters of the compression sleeves to be smaller than the diameters of the elastic parts, then sleeving the workpiece to be fixed outside the mandrel, adjusting the position, screwing the threaded heads through a hand wheel to force the mandrel to move downwards, increasing the diameters of the elastic parts under the action of the guide inclined planes, and further compressing and fixing the inner wall of the workpiece; comparatively speaking, this scheme has advantages such as high temperature resistant, dismouting are light, and the high temperature that produces when carrying out operations such as burnishing and polishing to the key can not influence its reliability.
Drawings
Fig. 1 is a schematic structural view of the internal bracing tool.
Fig. 2 is a sectional view of the inner support tool.
In the figure, 1, installing a flange; 2. a mandrel; 3. a compression sleeve; 4. a limiting step; 5. an elastic member; 6. a guide slope; 7. a screw head; 8. mounting the cylinder; 9. a handwheel.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the tubular workpiece inner support tool comprises an installation flange 1, a mandrel 2 longitudinally and slidably connected to the installation flange 1, and a plurality of pressing sleeves 3 slidably connected to the mandrel 2, wherein a limiting step 4 is arranged at the top of the mandrel 2, elastic members 5 are arranged between the limiting step 4 and the adjacent pressing sleeve 3, between the adjacent pressing sleeves 3, and between the bottommost pressing sleeve 3 and the installation flange 1, the elastic members 5 are arc-shaped with notches, and guide inclined surfaces 6 are arranged on the pressing sleeves 3, the limiting step 4, and the installation flange 1 at the positions pressed against the elastic members 5; the relative position between the mandrel 2 and the mounting flange 1 can be fixed.
The mandrel 2 is rotatably connected with a thread head 7 through a bearing, the mounting flange 1 is fixedly provided with a mounting cylinder 8, and the thread head 7 is in threaded connection with the mounting cylinder 8.
A hand wheel 9 positioned below the mounting flange 1 is fixedly arranged on the threaded head 7, and an anti-skid groove or an anti-skid protrusion is arranged outside the elastic piece 5.
Firstly loosening the threaded heads 7 to enable the elastic parts 5 to contract until the diameters of the elastic parts are smaller than the diameter of an inner hole of a workpiece to be fixed, enabling the diameter of the compression sleeve 3 to be smaller than the diameter of the elastic parts 5, then sleeving the workpiece to be fixed outside the mandrel 2, adjusting the position, screwing the threaded heads 7 through the hand wheel 9 to force the mandrel 2 to move downwards, increasing the diameters of the elastic parts 5 under the action of the guide inclined planes 6, and further compressing and fixing the inner wall of the workpiece; comparatively speaking, this scheme has advantages such as high temperature resistant, dismouting are light, and the high temperature that produces when carrying out operations such as burnishing and polishing to the key can not influence its reliability.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (4)
1. The tubular workpiece inner support tool is characterized by comprising a mounting flange (1), a mandrel (2) and a plurality of pressing sleeves (3), wherein the mandrel (2) is longitudinally and slidably connected onto the mounting flange (1), the pressing sleeves (3) are slidably connected onto the mandrel (2), a limiting step (4) is arranged at the top of the mandrel (2), elastic pieces (5) are arranged between the limiting step (4) and the pressing sleeves (3) adjacent to the limiting step, between the adjacent pressing sleeves (3) and between the pressing sleeve (3) at the bottommost part and the mounting flange (1), the elastic pieces (5) are arc-shaped with notches, and guide inclined planes (6) are arranged at the pressing positions of the pressing sleeves (3), the limiting step (4) and the mounting flange (1) and the elastic pieces (5); the relative position between the mandrel (2) and the mounting flange (1) can be fixed.
2. The tubular workpiece internal stay frock of claim 1, characterized in that, a thread head (7) is connected with through the bearing rotation on dabber (2), a mounting cylinder (8) is fixed to be provided with on mounting flange (1), threaded connection between thread head (7) and mounting cylinder (8).
3. The tubular workpiece inner support tool according to claim 2, wherein a hand wheel (9) located below the mounting flange (1) is fixedly arranged on the threaded head (7).
4. The tubular workpiece internal bracing tool according to claim 2 or 3, wherein the elastic piece (5) is externally provided with an anti-skid groove or an anti-skid protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859768.2U CN216371691U (en) | 2021-11-22 | 2021-11-22 | Tubular workpiece internal stay frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859768.2U CN216371691U (en) | 2021-11-22 | 2021-11-22 | Tubular workpiece internal stay frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216371691U true CN216371691U (en) | 2022-04-26 |
Family
ID=81253536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122859768.2U Active CN216371691U (en) | 2021-11-22 | 2021-11-22 | Tubular workpiece internal stay frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216371691U (en) |
-
2021
- 2021-11-22 CN CN202122859768.2U patent/CN216371691U/en active Active
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