CN221582765U - Combined turning clamp for irregular revolving body thin-wall workpiece - Google Patents
Combined turning clamp for irregular revolving body thin-wall workpiece Download PDFInfo
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- CN221582765U CN221582765U CN202323301047.5U CN202323301047U CN221582765U CN 221582765 U CN221582765 U CN 221582765U CN 202323301047 U CN202323301047 U CN 202323301047U CN 221582765 U CN221582765 U CN 221582765U
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- expansion sleeve
- shaft cage
- flat chuck
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- 230000001788 irregular Effects 0.000 title claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a combined turning clamp for an irregular revolving body thin-wall workpiece, and belongs to the technical field of machining. The clamp comprises an expansion sleeve, a compression shaft cage, an anti-clamping flat chuck, a clamping gasket and a bolt; one end of a workpiece to be clamped is arranged in a groove of the anti-clamping flat chuck, the clamping gasket is fixed on the surface of the anti-clamping flat chuck through a screw, and the end face of the clamping gasket is in contact with the surface of the workpiece to realize radial limiting of the workpiece; the expansion sleeve is sleeved on the outer circumferential surface of the workpiece, the compression shaft cage is sleeved on the surface of the expansion sleeve, the expansion sleeve and the compression shaft cage are connected together through the bolt, and when the bolt is screwed, the expansion sleeve and the compression shaft cage move relatively axially, and the expansion sleeve contracts in the moving process to fix the workpiece. The utility model not only can realize the clamping of the irregular excircle thin-wall workpiece, but also can prevent the thin-wall workpiece from generating stress deformation during the clamping.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a combined turning clamp for an irregular revolving body thin-wall workpiece.
Background
The stabilizer series product is an excircle protective sleeve of the underground workpiece, and has the characteristics of wear resistance, high temperature resistance, corrosion resistance and the like; most drill collar excircles need to be assembled with wear-resistant sleeves, are important spare parts of petroleum drilling equipment, and are easy to generate stress deformation after being processed by nickel alloy 925 because the workpiece is an irregular excircle surface which is inconvenient to process and clamp, and the irregular excircle surface is a laser deposited hard alloy layer and is a thin-wall workpiece with the wall thickness of 4-7 mm.
Because the lengths of the workpieces are different from 600 mm to 700mm, when an inner hole is machined, one end is required to be positioned and clamped by a chuck, the other end is placed on a center frame, the chuck drives the workpiece to rotate to lathe the inner hole, but the outer circle of the actual workpiece is provided with three laser deposited hard alloy layers, the workpiece cannot be directly placed on the center frame, and if the workpiece is directly clamped at the other end, stress deformation is easy to occur after the workpiece is clamped due to the thin wall thickness of the workpiece, so that the drawing requirement cannot be met.
Disclosure of utility model
In view of the above, the utility model provides a combined turning clamp for an irregular revolving body thin-wall workpiece, which not only can clamp the irregular outer circle thin-wall workpiece, but also can prevent the thin-wall workpiece from generating stress deformation during clamping.
A combined turning clamp for an irregular revolving body thin-wall workpiece comprises an expansion sleeve, a compression shaft cage, an anti-pinch flat chuck, a clamping gasket and screws;
The inner hole of the expansion sleeve is a circular through hole, the outer surface of the expansion sleeve is a conical surface, and the large end of the expansion sleeve is provided with a spigot structure;
The inner hole of the compression shaft cage is a conical hole which is matched with the outer surface of the expansion sleeve;
The anti-pinch flat chuck is of a cylindrical structure, and a concave circular groove is formed in one side surface of the anti-pinch flat chuck and is used for accommodating a clamping end of a workpiece;
One end of a workpiece to be clamped is arranged in a groove of the anti-clamping flat chuck, the clamping gasket is fixed on the surface of the anti-clamping flat chuck through a bolt, and the end face of the clamping gasket is in contact with the surface of the workpiece to realize radial limiting of the workpiece; the expansion sleeve is sleeved on the outer circumferential surface of the workpiece, the compression shaft cage is sleeved on the surface of the expansion sleeve, the expansion sleeve and the compression shaft cage are connected together through the screw, and when the screw is screwed, the expansion sleeve and the compression shaft cage move axially relatively, and the expansion sleeve contracts in the moving process to fix the workpiece.
Further, the bolt through holes on the clamping gaskets are bar-shaped holes.
Further, the end face of the clamping gasket, which is in contact with the workpiece, is processed into an arc shape.
Further, four clamping gaskets are arranged on the end face of the anti-clamping flat chuck.
Further, the left end of the workpiece is clamped on a three-jaw chuck of a machine tool through an anti-clamping flat chuck, and the middle section of the workpiece is supported on a center frame through a pressing shaft cage.
The beneficial effects are that:
1. According to the utility model, the left end of the workpiece is limited in a mode of combining the anti-clamping flat chuck and the clamping gasket, the central frame at the right end of the workpiece is provided with the expansion type shaft hole sleeve screw for locking, so that the expansion elastic sheet is fastened on the outer circle surface, the combined turning fixture and the workpiece form a whole, and then the workpiece is turned by the clamping of the machine tool chuck and the support of the central frame, so that the precision of the workpiece can be ensured by the integral clamping, part of processing procedures can be reduced, the production cost can be saved, and the processing efficiency can be improved.
2. The strip-shaped holes are adopted in the screw through holes on the clamping gaskets, so that the clamping gaskets can be adjusted in a certain range in the radial direction, and the clamping gaskets are applicable to workpieces with different outer diameters and have strong universality.
3. The end surface of the clamping gasket, which is contacted with the workpiece, is processed into the arc shape, so that the contact area between the surface of the workpiece and the clamping gasket can be increased, and meanwhile, the contact point can be adaptively adjusted in the contact process, so that the workpiece is adapted to the irregular shape of the workpiece, and meanwhile, the workpiece is uniformly stressed in the subsequent clamping process, and deformation is prevented.
Drawings
FIG. 1 is a cross-sectional view of a combination turning jig;
fig. 2 is a three-dimensional view of a combination turning jig.
Wherein, 1-anti-pinch flat chuck, 2-hexagon socket head cap screw, 3-clamp gasket, 4-fastening bolt, 5-expansion sleeve, 6-compression shaft cage and 7-work piece.
Detailed Description
The utility model will now be described in detail by way of example with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model provides a combined turning clamp for an irregular revolving body thin-wall workpiece, which comprises an anti-clamping flat chuck 1, a clamping gasket 3, an expansion sleeve 5, a compression shaft cage 6, a fastening bolt 4 and an inner hexagonal cylindrical head screw 2.
The inner hole of the expansion sleeve 5 is a circular through hole, the outer surface of the expansion sleeve is a conical surface, the large end of the expansion sleeve 5 is provided with a spigot structure, and the spigot structure is a radial bulge.
The inner hole of the compression shaft cage 6 is a conical hole which is matched with the conical outer surface of the expansion sleeve.
The anti-pinch flat chuck 1 has a cylindrical shape, a concave circular groove is formed in one side surface of the anti-pinch flat chuck 1, the groove is used for accommodating the clamping end of a workpiece 7, four bolt holes are formed in the end face of the anti-pinch flat chuck, and the bolt holes are used for installing and fixing the fastening bolts 4 for clamping gaskets.
The bolt through holes on the clamping gaskets 3 are bar-shaped holes, so that the clamping gaskets 3 have corresponding radial adjustment allowance in the fastening process; the end surface of the clamping washer 3 that contacts the workpiece 7 is also machined to be circular arc.
One end of a workpiece 7 to be clamped is arranged in a groove of the anti-clamping flat chuck 1, a clamping gasket 3 is fixed on the surface of the anti-clamping flat chuck through a fastening bolt 4, the arc-shaped end face of the clamping gasket 3 is in contact with the surface of the workpiece 7, so that radial limiting of the workpiece 7 is realized, and the bottom surface of the groove of the anti-clamping flat chuck 1 axially limits the workpiece 7; the expansion sleeve 5 is sleeved on the outer circumferential surface of the workpiece 7, the compression shaft cage 6 is sleeved on the surface of the expansion sleeve, the expansion sleeve 5 and the compression shaft cage 6 are connected together after the hexagon socket head cap screw 2 passes through the spigot of the expansion sleeve 5, and when the hexagon socket head cap screw 2 is screwed, the expansion sleeve 5 and the compression shaft cage 6 move relatively axially, and the expansion sleeve 5 contracts in the moving process to fix the workpiece 7.
The combined turning fixture and the workpiece are connected to form an integral assembly, the left end of the assembly is clamped on a three-jaw chuck of a machine tool through an anti-clamping flat chuck to be fixed, the middle section of the assembly is supported on a center frame through a pressing shaft cage, and then the workpiece 7 can be turned. The combined clamp in the embodiment is half of the sleeve tool in processing cost.
In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The combined turning clamp for the irregular revolving body thin-wall workpiece is characterized by comprising an expansion sleeve, a compression shaft cage, an anti-pinch flat chuck, a clamping gasket and a screw;
The inner hole of the expansion sleeve is a circular through hole, the outer surface of the expansion sleeve is a conical surface, and the large end of the expansion sleeve is provided with a spigot structure;
The inner hole of the compression shaft cage is a conical hole which is matched with the outer surface of the expansion sleeve;
The anti-pinch flat chuck is of a cylindrical structure, and a concave circular groove is formed in one side surface of the anti-pinch flat chuck and is used for accommodating a clamping end of a workpiece;
One end of a workpiece to be clamped is arranged in a groove of the anti-clamping flat chuck, the clamping gasket is fixed on the surface of the anti-clamping flat chuck through a bolt, and the end face of the clamping gasket is in contact with the surface of the workpiece to realize radial limiting of the workpiece; the expansion sleeve is sleeved on the outer circumferential surface of the workpiece, the compression shaft cage is sleeved on the surface of the expansion sleeve, the expansion sleeve and the compression shaft cage are connected together through the screw, and when the screw is screwed, the expansion sleeve and the compression shaft cage move axially relatively, and the expansion sleeve contracts in the moving process to fix the workpiece.
2. The composite turning jig for irregular solid of revolution thin-walled workpieces according to claim 1, wherein the bolt through holes in the clamping shims are bar-shaped holes.
3. The combined turning jig for the irregular solid of revolution thin-walled workpiece according to claim 2, wherein the end face of the clamping washer in contact with the workpiece is machined into a circular arc shape.
4. The combined turning fixture for the irregular solid of revolution thin-walled workpiece according to claim 3, characterized in that four clamping gaskets are arranged on the end face of the anti-clamping flat chuck.
5. The combined turning clamp for the irregular rotary thin-wall workpiece according to claim 3 or 4, wherein the left end of the workpiece is clamped on a three-jaw chuck of a machine tool through an anti-clamping flat chuck, and the middle section of the workpiece is supported on a center frame through a pressing shaft cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323301047.5U CN221582765U (en) | 2023-12-05 | 2023-12-05 | Combined turning clamp for irregular revolving body thin-wall workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323301047.5U CN221582765U (en) | 2023-12-05 | 2023-12-05 | Combined turning clamp for irregular revolving body thin-wall workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221582765U true CN221582765U (en) | 2024-08-23 |
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ID=92406948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323301047.5U Active CN221582765U (en) | 2023-12-05 | 2023-12-05 | Combined turning clamp for irregular revolving body thin-wall workpiece |
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| Country | Link |
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| CN (1) | CN221582765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120095240A (en) * | 2025-05-08 | 2025-06-06 | 浙江驰阳精密工具有限公司 | A gear shaping fixture |
-
2023
- 2023-12-05 CN CN202323301047.5U patent/CN221582765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120095240A (en) * | 2025-05-08 | 2025-06-06 | 浙江驰阳精密工具有限公司 | A gear shaping fixture |
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