CN217122459U - Thin-wall part machining clamping and positioning tool - Google Patents
Thin-wall part machining clamping and positioning tool Download PDFInfo
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- CN217122459U CN217122459U CN202221750218.5U CN202221750218U CN217122459U CN 217122459 U CN217122459 U CN 217122459U CN 202221750218 U CN202221750218 U CN 202221750218U CN 217122459 U CN217122459 U CN 217122459U
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- 238000003754 machining Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a thin-wall part machining clamping and positioning tool, which is characterized by comprising a fixture tool body for installing a thin-wall workpiece, a connecting end which is arranged at one end of a roller installation framework and is connected with a lathe, a plurality of roller supporting surfaces are uniformly distributed on the roller installation framework, a wedge-shaped slot hole is formed between the roller supporting surfaces and the inner wall of the thin-wall workpiece, and a roller which is convenient for clamping the thin-wall workpiece is arranged in the wedge-shaped slot hole; the clamping and positioning tool solves the problems that when a thin-wall workpiece is machined in the prior art, the deformation and concentricity are poor due to large clamping force or uneven stress, especially the hollow thin-wall workpiece is easy to deform, the later-stage product assembly or application is influenced, and the problems that the clamping of the workpiece is unstable, the falling risk exists and the like due to small clamping force are solved.
Description
Technical Field
The patent of the utility model relates to a thin wall part's machine tooling field, concretely relates to thin wall part machine tooling centre gripping location frock.
Background
In the process of machining a thin-wall workpiece, the workpiece needs to be clamped on a positioning and clamping mechanism of a machine tool to be clamped and then machined.
In the prior art, the workpiece needs to be clamped on a machine tool through the matching of a chuck and a clamping jaw of the machine tool, but the thin-wall workpiece bears small clamping force, so that great care is needed during clamping, the problems of deformation, poor concentricity and the like of the thin-wall workpiece can be caused due to large clamping force or uneven stress, especially the hollow thin-wall workpiece (such as hollow tubular, annular and other thin-wall workpieces) is easy to deform, and the clamping of the workpiece is unstable and the risk of falling is caused if the clamping force is small; for solving this kind of technical problem the utility model provides a thin wall part machine tooling centre gripping location frock.
Disclosure of Invention
The utility model discloses a purpose, it adds man-hour to solve among the prior art thin wall work piece, because of the centre gripping dynamics is big or the atress is inhomogeneous, can lead to the deformation of thin wall work piece, the poor scheduling problem of concentricity, especially hollow thin wall work piece takes place to warp more easily, influences later stage product assembly or uses, and the clamping-force is less, then leads to the centre gripping of work piece unstable, has the risk scheduling problem that drops.
In order to achieve the purpose, the utility model provides a thin wall part machine tooling centre gripping location frock, its characteristic is including the anchor clamps frock body of installation thin wall work piece, sets up the link of being connected with the lathe in anchor clamps frock body one end, and the anchor clamps frock body is gone up even is provided with a plurality of roller holding surface, be formed with the wedge slotted hole between the inner wall of roller holding surface and thin wall work piece, install the tight roller of the thin wall work piece clamp of being convenient for in the wedge slotted hole.
One end of the roller arranged in the wedge-shaped slotted hole is contacted with the supporting surface of the roller, and the other end of the roller is contacted with the inner wall of the thin-wall workpiece.
The fixture tool body is further provided with a positioning bulge for limiting the position of the roller, and the diameter of the outer circle of the fixture tool body is a positioning surface of the thin-wall workpiece.
Preferably, the space between the roller supporting surface and the inner wall of the thin-wall workpiece for forming the wedge-shaped slot hole for mounting the roller is gradually reduced from the left end to the right end.
Preferably, the thin-wall workpiece drives the roller to move towards the space at the left end of the wedge-shaped slotted hole to form a loosening structure of the thin-wall workpiece.
Preferably, the thin-wall workpiece drives the roller to move towards the space at the right end of the wedge-shaped slot hole to form a positioning and clamping structure of the thin-wall workpiece.
The utility model discloses beneficial effect: the clamping and positioning tool solves the problems that when a thin-wall workpiece is machined in the prior art, the deformation and concentricity are poor due to large clamping force or uneven stress, especially the hollow thin-wall workpiece is easy to deform, the later-stage product assembly or application is influenced, and the problems that the clamping of the workpiece is unstable, the falling risk exists and the like due to small clamping force are solved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of another view angle of the present invention;
the labels in the figure are: the fixture comprises a thin-wall workpiece 1, a fixture tool body 2, a connecting end 21, a roller supporting surface 22, a positioning bulge 23, a wedge-shaped groove hole 3 and a roller 4.
Detailed Description
The thin-wall part machining clamping and positioning tool is further explained with reference to the attached drawings 1-2, and is characterized by comprising a fixture tool body 2 for mounting a thin-wall workpiece 1, a connecting end 21 which is welded or integrally formed with one end of the fixture tool body 2 and is connected with a lathe, a plurality of roller supporting surfaces 22 are uniformly arranged on the fixture tool body 2, a wedge-shaped slot 3 is formed between each roller supporting surface 22 and the inner wall of the thin-wall workpiece 1, and a roller 4 convenient for clamping the thin-wall workpiece 1 is movably mounted in each wedge-shaped slot 3.
Referring to fig. 1 and 2, one end of the roller 4 movably installed in the wedge groove hole 3 is in contact with the roller supporting surface 22, and the other end is in contact with the inner wall of the thin-wall workpiece 1.
The clamp tool body 2 is welded or integrally formed with a positioning bulge 23 for limiting the position of the roller 4, the positioning bulge 23 is used for preventing the roller from falling off from one end of the space of the wedge-shaped slot hole 3 when the roller does not clamp a workpiece, the diameter of the outer circle of the clamp tool body 2 is a positioning surface of the thin-wall workpiece 1, and the thin-wall workpiece can be supported and positioned before being clamped through the positioning surface.
Referring to fig. 2, the space between the roller supporting surface 22 and the inner wall of the thin-wall workpiece 1 to form the wedge-shaped slot 3 for installing the roller 4 is gradually reduced from the left end to the right end.
Referring to the attached figure 2, the thin-wall workpiece 1 drives the roller 3 to move towards the space at the left end of the wedge-shaped groove hole 3 to form a loosening structure of the thin-wall workpiece 1; the thin-wall workpiece 1 drives the roller 3 to move towards the space at the right end of the wedge-shaped slot hole 3 to form a clamping structure of the thin-wall workpiece 1.
Referring to the attached drawings 1 and 2, when the connecting end 21 is used in a machining, positioning and clamping tool, the connecting end 21 is connected with a machine tool in a positioning manner, the connecting end is fixed on the machine tool, then a cylindrical thin-wall workpiece 1 is sleeved on a fixture tool body 2, and the thin-wall workpiece 1 is supported by the positioning surface to form positioning; after positioning is finished, the rollers 4 with the number corresponding to that of the wedge-shaped slotted holes 3 formed between the roller supporting surface 22 and the inner wall of the thin-wall workpiece 1 are arranged in the wedge-shaped slotted holes 3, the rollers 4 are positioned between the inner wall of the thin-wall workpiece 1 and the roller supporting surface 22 and are contacted with the inner wall and the roller supporting surface, then the thin-wall workpiece 1 rotates towards the space at the right end of the wedge-shaped slotted holes 3 or clockwise along the fixture tool body 2, because the rollers 4 are contacted with the inner wall of the thin-wall workpiece 1, each roller 4 is driven by the thin-wall workpiece 1 to move towards the space at the right end of the wedge-shaped slotted hole 31 on the roller supporting surface 22 under the action of friction force, and because the space of the wedge-shaped slotted holes 3 is gradually reduced from the left end to the right end, the friction force and the contact surface between the rollers 4 and the thin-wall workpiece 1 and the roller supporting surface 22 are gradually increased, when the thin-wall workpiece 1 cannot drive the rollers 4 to move towards the space at the right end of the wedge-shaped slotted holes 3 on the roller supporting surface 22, at the moment, the thin-wall workpiece 1 is fixedly clamped on the fixture tool body 2 by the reverse acting force of the roller 4 and the thin-wall workpiece 1, and the thin-wall workpiece cannot rotate rightwards, so that the thin-wall workpiece can be machined; after the processing is finished, the thin-wall workpiece 1 is rotated towards the right end of the space of the wedge-shaped slot hole 3 or anticlockwise rotated along the fixture tool body 2, so that the roller 4 is driven to move towards the space of the right end of the wedge-shaped slot hole 3, the space of the wedge-shaped slot hole is larger along with the rightward movement of the roller 4, the friction force and the contact area between the roller 4 and the thin-wall workpiece 1 and the roller supporting surface 22 are gradually reduced, finally the reverse acting force between the roller 4 and the thin-wall workpiece 1 is invalid, at the moment, the thin-wall workpiece 1 can be taken out from the tool to finish the disassembly of the thin-wall workpiece 1, and a machine chuck or a machine chuck is not needed to clamp the workpiece by adopting the clamping positioning tool, so that the clamping of the workpiece is clamped by the reverse acting force between the roller 4 and the thin-wall workpiece 1, and the thin-wall workpiece 1 cannot be subjected to overlarge clamping force, and therefore, the deformation cannot be caused; in addition, because the roller supporting surfaces 22 are uniformly distributed, the wedge-shaped slot holes 3 formed between the roller supporting surfaces 22 and the inner wall of the thin-wall workpiece 1 and the rollers 4 arranged in the wedge-shaped slot holes 3 are also uniformly distributed, so that the force applied to the workpiece in the process of forced clamping is uniform, thereby solving the problems of deformation, poor concentricity and the like of the thin-wall workpiece caused by overlarge clamping force or uneven clamping, simultaneously clamping the workpiece by the reverse acting force of the roller 4 and the thin-wall workpiece 1, and the rotation direction of the main shaft of the machine tool also rotates clockwise, so the roller 4 is always in a state that the thin-wall workpiece 1 can not drive the roller 4 to move towards the right end of the space of the wedge-shaped slot hole 3 on the roller supporting surface 22 before the machine tool stops, therefore, the clamping device can clamp the workpiece, and the problems that the clamping of the workpiece is unstable and the workpiece falls off during processing due to small clamping force are solved.
This embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a inject, any right the technical scheme of the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (6)
1. The utility model provides a thin wall part machine tooling centre gripping location frock which characterized in that: the clamp fixture comprises a fixture body (2) for mounting a thin-wall workpiece (1), and a connecting end (21) which is arranged at one end of the fixture body (2) and connected with a machine tool, wherein a plurality of roller supporting surfaces (22) are uniformly arranged on the fixture body (2), a wedge-shaped slotted hole (3) is formed between the roller supporting surfaces (22) and the inner wall of the thin-wall workpiece (1), and a roller (4) which is convenient for clamping the thin-wall workpiece (1) is arranged in the wedge-shaped slotted hole (3).
2. The thin-wall part machining clamping and positioning tool of claim 1, characterized in that: one end of the roller (4) arranged in the wedge-shaped slotted hole (3) is contacted with the roller supporting surface (22), and the other end is contacted with the inner wall of the thin-wall workpiece (1).
3. The thin-wall part machining clamping and positioning tool of claim 1, characterized in that: the fixture tool is characterized in that a positioning protrusion (23) for limiting the position of the roller (4) is further arranged on the fixture tool (2), and the diameter of the outer circle of the fixture tool (2) is the positioning surface of the thin-wall workpiece (1).
4. The thin-wall part machining clamping and positioning tool of claim 1, characterized in that: the space for forming the wedge-shaped slotted hole (3) for installing the roller (4) between the roller supporting surface (22) and the inner wall of the thin-wall workpiece (1) is gradually reduced from the left end to the right end.
5. The thin-wall part machining clamping and positioning tool of claim 4, characterized in that: the thin-wall workpiece (1) drives the roller (4) to move towards the space at the left end of the wedge-shaped slotted hole (3) to form a loosening structure of the thin-wall workpiece (1).
6. The thin-wall part machining clamping and positioning tool of claim 4, characterized in that: the thin-wall workpiece (1) drives the roller (4) to move towards the space at the right end of the wedge-shaped slotted hole (3) to form a clamping structure of the thin-wall workpiece (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221750218.5U CN217122459U (en) | 2022-07-08 | 2022-07-08 | Thin-wall part machining clamping and positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221750218.5U CN217122459U (en) | 2022-07-08 | 2022-07-08 | Thin-wall part machining clamping and positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217122459U true CN217122459U (en) | 2022-08-05 |
Family
ID=82616647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221750218.5U Active CN217122459U (en) | 2022-07-08 | 2022-07-08 | Thin-wall part machining clamping and positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217122459U (en) |
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2022
- 2022-07-08 CN CN202221750218.5U patent/CN217122459U/en active Active
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