CN219632619U - Tool clamp for machining thin-wall sleeve parts with steps - Google Patents
Tool clamp for machining thin-wall sleeve parts with steps Download PDFInfo
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- CN219632619U CN219632619U CN202320286210.6U CN202320286210U CN219632619U CN 219632619 U CN219632619 U CN 219632619U CN 202320286210 U CN202320286210 U CN 202320286210U CN 219632619 U CN219632619 U CN 219632619U
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- 238000003754 machining Methods 0.000 title claims abstract description 28
- 230000006978 adaptation Effects 0.000 claims abstract description 8
- 230000008602 contraction Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a fixture for machining a thin-wall sleeve part with a step. The device comprises a mandrel body, a sleeve, a taper sleeve, a fastener and a tensioning sleeve, wherein the mandrel body, the sleeve, the taper sleeve, the fastener and the tensioning sleeve are connected with a machine tool, the sleeve is sleeved at the middle part of the mandrel body, and one end of the mandrel body is sequentially provided with the taper sleeve and the fastener; the taper sleeve is sleeved with a tensioning sleeve, and the fastening piece is enabled to move along the axial direction of the mandrel body by screwing the fastening piece, so that radial expansion and contraction of the tensioning sleeve are realized, and the adaptation with a small inner hole of a thin-wall sleeve part with a step is realized; a cavity is formed between the mandrel body and the sleeve, a flexible part is arranged in the cavity, the mandrel body is further connected with the flexible part through a connecting piece, and radial expansion and contraction of the flexible part are realized through screwing the connecting piece, so that the large inner hole phase adaptation of the sleeve and the thin-wall sleeve part with the step is realized. The clamping device can solve the problem that the clamping difficulty exists in the turning or grinding process of the existing ultra-thin wall sleeve parts with steps.
Description
Technical Field
The utility model relates to the technical field of part machining, in particular to a fixture for machining a thin-wall sleeve part with a step.
Background
As shown in FIG. 1, the wall thickness of the thinnest part (namely the left end part in FIG. 1) of the marine stepped ultrathin wall sleeve part is only 0.5mm, the thick wall of most parts in the middle is only 1.25mm, and the wall thickness of the stepped external thread sleeve with the rightmost end belonging to fine threads with the pitch of 1.5 is only 2.5mm. Therefore, when the conventional processing clamp is used for clamping, parts are easy to deform, so that the quality of a part product is affected, and the existing tooling clamp for processing thin-wall parts is difficult to process different stepped surfaces simultaneously due to steps on the outer side wall of the part.
Disclosure of Invention
The utility model aims to provide a fixture for machining a stepped thin-wall sleeve part, which solves the problems that the clamping of the existing stepped ultrathin-wall sleeve part is difficult during turning or grinding, and the clamping is easy to cause deformation or machining deformation of parts, so that the precision and quality of products are affected.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the tool clamp for machining the stepped thin-wall sleeve part comprises a mandrel body, a sleeve, a taper sleeve and a fastener, wherein the mandrel body, the sleeve, the taper sleeve and the fastener are connected with a machine tool, the sleeve is sleeved at the middle part of the mandrel body, and the taper sleeve and the fastener are sequentially arranged at one end of the mandrel body;
the taper sleeve is sleeved with the tensioning sleeve, and the fastening piece is screwed to enable the fastening piece to move along the axial direction of the mandrel body so as to realize radial expansion and contraction of the tensioning sleeve, thereby realizing adaptation with a small inner hole of a thin-wall sleeve part with a step;
a cavity is formed between the mandrel body and the sleeve, a flexible part is arranged in the cavity, the mandrel body is further connected with the flexible part through a connecting piece, and radial expansion and contraction of the flexible part are achieved through screwing the connecting piece, so that the sleeve is matched with a large inner hole of a thin-wall sleeve part with a step.
According to the technical means, the spindle body which is directly connected with the machine tool is arranged, the spindle body is convenient to fix, the sleeve and the taper sleeve are arranged on the spindle body at the same time, so that radial size adjustment of the sleeve and the taper sleeve can be realized through screwing the fastener and the connecting piece, the radial size adjustment is matched with inner holes with different sizes of stepped thin-wall sleeve parts, the stepped thin-wall sleeve parts can be fixed through one-time clamping, the machining of the outer circle surfaces of the thin-wall outer circles of all steps of the ultrathin-wall sleeve parts with different structures can be finished at the same time, the assembly procedure is reduced, the problem that clamping is difficult when the existing stepped ultrathin-wall sleeve parts with steps are turned or ground is effectively solved, the problem that the clamping of the existing clamp is easy to cause part deformation or machining deformation and the product precision and quality are effectively solved.
The thickness of the tensioning sleeve arranged outside the taper sleeve is adjustable, so that the small inner hole phase adaptation of the thin-wall sleeve parts with steps of different specifications can be realized by adjusting the thickness of the tensioning sleeve, and the universality of the tool clamp is effectively improved.
Preferably, the mandrel body has a cylindrical structure and comprises a large-diameter part in the middle and small-diameter parts positioned at two ends of the large-diameter part.
The mandrel body is integrally formed, the large diameter part represents that the diameter of the middle is larger, and the small diameter part represents that the diameters of the two ends are smaller.
Preferably, the ends of the small diameter parts at the two ends of the mandrel body are provided with center holes for being matched with the machine tool spindle center and the tailstock center, so that the fixture clamp is fixed.
Preferably, the sleeve is sleeved outside the large-diameter portion of the mandrel body, a first groove is formed in the outer side wall of the large-diameter portion, a second groove is formed in the inner side wall of the sleeve at a position corresponding to the first groove, and the first groove and the second groove jointly form the cavity.
Preferably, the taper sleeve and the fastener are sleeved outside the small diameter part at one end of the mandrel body.
Preferably, through holes are formed in the taper sleeve at corresponding positions where the fasteners are installed, so that the fasteners can be screwed conveniently.
Preferably, the mandrel body, the taper sleeve and the tensioning sleeve are made of steel backing materials; the flexible component is made of rubber.
Preferably, the tensioning sleeve is a thin-wall opening sleeve.
Preferably, the fastener is a nut; the connecting piece is a screw.
The utility model has the beneficial effects that:
according to the fixture clamp for machining the stepped thin-wall sleeve parts, the mandrel body directly connected with the machine tool is arranged, the mandrel body is convenient to fix, the sleeve and the taper sleeve are arranged on the mandrel body at the same time, so that radial size adjustment of the sleeve and the taper sleeve can be realized through screwing the fastener and the connector, the radial size adjustment is matched with inner holes with different sizes of the stepped thin-wall sleeve parts, the stepped thin-wall sleeve parts can be fixed through one-time clamping, machining of the outer circle surfaces of the thin-wall parts with different steps of the ultrathin-wall sleeve parts can be finished at the same time, the assembly procedure is reduced, the problem that clamping difficulties exist in turning or grinding of the existing stepped ultrathin-wall sleeve parts is effectively solved, and the problems that the sleeve and the taper sleeve are in surface-to-surface contact with the inner hole wall of the stepped ultrathin-wall sleeve parts are effectively solved, the clamping of the existing fixture is easy to cause part deformation or machining deformation, and product precision and quality are affected. The product quality and the qualification rate are effectively improved, the production cost is reduced, the device has the advantages of simple structure and convenient operation, and has popularization and application values in the technical field of part processing.
Drawings
FIG. 1 is a schematic diagram of a stepped thin-walled sleeve-like part;
FIG. 2 is a schematic diagram of the structure of the present utility model;
the device comprises a 1-mandrel body, a 11-central hole, a 2-sleeve, a 3-taper sleeve, a 31-through hole, a 4-fastener, a 5-flexible part, a 6-connecting part, a 7-tensioning sleeve and an 8-stepped thin-wall sleeve part.
Detailed Description
Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Example 1
As shown in fig. 2, the fixture for machining the stepped thin-wall sleeve parts comprises a mandrel body 1, a sleeve 2, a taper sleeve 3 and a fastener 4, wherein the mandrel body 1, the sleeve 2, the taper sleeve 3 and the fastener 4 are connected with a machine tool, the sleeve 2 is sleeved at the middle part of the mandrel body 1, and the taper sleeve 3 and the fastener 4 are sequentially arranged at one end of the mandrel body 1;
the taper sleeve 3 is sleeved with the tensioning sleeve 7, and the fastening piece 4 is screwed to enable the fastening piece 4 to move along the axial direction of the mandrel body 1 so as to realize radial expansion and contraction of the tensioning sleeve 7, thereby realizing adaptation with a small inner hole of the stepped thin-wall sleeve part 8;
a cavity is formed between the mandrel body 1 and the sleeve 2, a flexible part 5 is arranged in the cavity, the mandrel body 1 is further connected with the flexible part 5 through a connecting piece 6, and radial expansion and contraction of the flexible part 5 are achieved through screwing the connecting piece 6, so that large inner hole phase adaptation of the sleeve 2 and the stepped thin-wall sleeve part 8 is achieved.
The thin-walled sleeve part 8 with steps in the embodiment is a bearing bush.
In order to enable the fixture to realize clamping and fixing of all specifications of the stepped thin-wall sleeve part 8, the thickness of the tensioning sleeve 7 is adjustable, so that small inner holes of the stepped thin-wall sleeve part 8 with different specifications can be matched by adjusting the thickness of the tensioning sleeve 7.
The mandrel body 1 has a cylindrical structure and includes a large diameter portion in the middle and small diameter portions at both ends of the large diameter portion.
The ends of the small diameter parts at the two ends of the mandrel body 1 are provided with center holes 11 which are used for being matched with the center of the main shaft of the machine tool and the center of the tailstock so as to fix the fixture.
The sleeve 2 is sleeved outside the large-diameter portion of the mandrel body 1, a first groove is formed in the outer side wall of the large-diameter portion, a second groove is formed in the inner side wall of the sleeve 2 at a position corresponding to the first groove, and the first groove and the second groove form a cavity together.
The taper sleeve 3 and the fastener 4 are sleeved outside the small diameter part at one end of the mandrel body 1.
The taper sleeve 3 is provided with a through hole 31 at a corresponding position for installing the fastening piece 4, one end of the fastening piece 4 is positioned in the through hole 31, the other end passes through the mandrel body 1 and is positioned in the flexible part 5, so that an operator can turn the fastening piece 4 through the through hole 31.
The mandrel body 1, the taper sleeve 3 and the tension sleeve 7 are made of steel backing materials; the flexible member 5 is made of rubber.
The tensioning sleeve 7 is a thin-wall opening sleeve.
The fastener 4 is a nut; the connecting piece 6 is a screw.
In the practical use process, the fixture clamp for machining the stepped thin-wall sleeve part is characterized in that the stepped thin-wall sleeve part 8 is sleeved on the fixture clamp, the taper sleeve 3 and the flexible part 5 are extruded by screwing the fastener 4 and the connecting piece 6, so that the taper sleeve 3 and the flexible part 5 are expanded outwards in the radial direction, the flexible part 5 promotes the sleeve 2 to expand outwards in the radial direction, the sleeve 2 is enabled to be propped against the large inner hole wall of the stepped thin-wall sleeve part 8, and meanwhile, the taper sleeve 3 is propped against the small inner hole wall of the stepped thin-wall sleeve part 8, so that the stepped thin-wall sleeve part 8 can be fixed by one-time clamping, and then machining of the outer circle surfaces of all the stepped thin walls of the ultrathin-wall sleeve part can be finished simultaneously; after the processing is finished, the taper sleeve 3 and the flexible part 5 are retracted by unscrewing the fastener 4 and the connecting piece 6, the taper sleeve 3 and the flexible part 5 are retracted inwards along the radial direction, the flexible part 5 promotes the sleeve 2 to retract inwards along the radial direction, and the finished product of the thin-wall sleeve part 8 with the step can be taken down. The tensioning sleeve 7 outside the taper sleeve 3 can be assembled and disassembled adaptively according to the size of a small inner hole of the thin-wall sleeve part 8 with the step to be actually machined. The taper sleeve 3 or the tensioning sleeve 7 and the sleeve 2 are in surface contact with the inner hole wall of the thin-wall sleeve part 8 with the step, so that clamping deformation and processing deformation of the thin-wall sleeve part 8 with the step are effectively avoided.
In summary, the fixture for machining the stepped thin-wall sleeve part is convenient to fix by arranging the mandrel body directly connected with the machine tool, and the sleeve and the taper sleeve are arranged on the mandrel body at the same time, so that radial size adjustment of the sleeve and the taper sleeve can be realized by screwing the fastener and the connecting piece to be matched with inner holes with different sizes of the stepped thin-wall sleeve part, the stepped thin-wall sleeve part can be fixed by one-time clamping, and further, machining of the outer circle surfaces of the thin walls of different steps of the ultrathin-wall sleeve part can be finished at the same time, the assembly procedure is reduced, the problem that clamping difficulty exists in the conventional stepped ultrathin-wall sleeve part during turning or grinding is effectively solved, and the problems that the clamping of the conventional fixture is easy to cause part deformation or machining deformation and influence product precision and quality are effectively solved. The quality and the qualification rate of the product are effectively improved, the production cost is reduced, and the method has popularization and application values in the technical field of part processing.
The above embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model.
Claims (9)
1. The tool clamp for machining the stepped thin-wall sleeve parts is characterized by comprising a mandrel body (1), a sleeve (2), a taper sleeve (3), a fastener (4) and a tensioning sleeve (7) which are connected with a machine tool, wherein the sleeve (2) is sleeved at the middle position of the mandrel body (1), and one end of the mandrel body (1) is sequentially provided with the taper sleeve (3) and the fastener (4);
the taper sleeve (3) is sleeved with the tensioning sleeve (7), and the fastening piece (4) is screwed, so that the fastening piece (4) moves along the axial direction of the mandrel body (1) to realize radial expansion and contraction of the tensioning sleeve (7), and therefore small inner hole adaptation with the stepped thin-wall sleeve part (8) is realized;
a cavity is formed between the mandrel body (1) and the sleeve (2), a flexible part (5) is arranged in the cavity, the mandrel body (1) is further connected with the flexible part (5) through a connecting piece (6), and radial expansion and contraction of the flexible part (5) are achieved through screwing the connecting piece (6), so that large inner hole phase adaptation of the sleeve (2) and the stepped thin-wall sleeve part (8) is achieved.
2. The fixture for machining the stepped thin-wall sleeve type part according to claim 1, wherein the mandrel body (1) is of a cylindrical structure and comprises a large-diameter portion in the middle and small-diameter portions at two ends of the large-diameter portion.
3. The fixture for machining the stepped thin-wall sleeve parts according to claim 2, wherein the end parts of the small-diameter parts at the two ends of the mandrel body (1) are provided with center holes (11) for being matched with a machine tool spindle center and a tailstock center to fix the fixture.
4. The fixture for machining the stepped thin-wall sleeve type part according to claim 2, wherein the sleeve (2) is sleeved outside a large-diameter portion of the mandrel body (1), a first groove is formed in the outer side wall of the large-diameter portion, a second groove is formed in the inner side wall of the sleeve (2) at a position corresponding to the first groove, and the first groove and the second groove jointly form the cavity.
5. The fixture for machining the stepped thin-wall sleeve type part according to claim 2, wherein the taper sleeve (3) and the fastener (4) are sleeved outside the small-diameter part at one end of the mandrel body (1).
6. The fixture for machining the stepped thin-wall sleeve type parts according to claim 1, wherein through holes (31) are formed in the taper sleeve (3) at corresponding positions for installing the fasteners (4) so as to facilitate screwing of the fasteners (4).
7. The fixture for machining the stepped thin-wall sleeve parts according to claim 1, wherein the mandrel body (1), the taper sleeve (3) and the tensioning sleeve (7) are made of steel backing materials; the flexible component (5) is made of rubber.
8. The fixture for machining the stepped thin-wall sleeve type parts according to claim 1, wherein the tensioning sleeve (7) is a thin-wall opening sleeve.
9. The tooling fixture for machining the stepped thin-wall sleeve type part according to claim 1, wherein the fastener (4) is a nut; the connecting piece (6) is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286210.6U CN219632619U (en) | 2023-02-22 | 2023-02-22 | Tool clamp for machining thin-wall sleeve parts with steps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286210.6U CN219632619U (en) | 2023-02-22 | 2023-02-22 | Tool clamp for machining thin-wall sleeve parts with steps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219632619U true CN219632619U (en) | 2023-09-05 |
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ID=87821896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320286210.6U Active CN219632619U (en) | 2023-02-22 | 2023-02-22 | Tool clamp for machining thin-wall sleeve parts with steps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219632619U (en) |
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2023
- 2023-02-22 CN CN202320286210.6U patent/CN219632619U/en active Active
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