CN208557135U - A kind of quick detachable thin-wall cylinder casing mill internal clamp - Google Patents
A kind of quick detachable thin-wall cylinder casing mill internal clamp Download PDFInfo
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- CN208557135U CN208557135U CN201820574777.2U CN201820574777U CN208557135U CN 208557135 U CN208557135 U CN 208557135U CN 201820574777 U CN201820574777 U CN 201820574777U CN 208557135 U CN208557135 U CN 208557135U
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- 210000004907 gland Anatomy 0.000 claims abstract description 52
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
A kind of quick detachable thin-wall cylinder casing mill internal clamp, including clamp body, tapered sleeve, outer press cover and internal gland；There are clamp body inner cavity and left and right ends to be open, and workpiece is fitted into inner cavity from right-end openings；Inner cavity left end is equipped with step surface, against positioning workpiece left side；Inner cavity has been radially formed inner hole abutment face, radially against the first outer circle of positioning workpiece；Conical mouths are equipped on the left of clamp body right-end openings, it is ramp-like in leaning outward；Tapered sleeve is bonded with its tapered outer periphery and against tapered opening, while with its flat internal perisporium against the second outer circle of positioning workpiece；Outer press cover is ring bodies, is assemblied in the right-end openings of clamp body, and the outer circle of outer press cover is threadedly engaged with clamp body right-end openings radially, and outer press cover left side is in the axial direction against positioning tapered sleeve right side；Internal gland is ring bodies, and the inner hole of outer circle and outer press cover is threadedly engaged radially, and internal gland left side is against positioning workpiece right side.
Description
Technical Field
The utility model relates to a frock clamp of machine tooling usefulness, concretely relates to quick detachable thin wall cylinder liner grinds hole anchor clamps.
Background
As shown in fig. 1, a workpiece 1 according to the present invention is a thin-walled cylinder liner component, and the workpiece 1 has the following features: 1. one end is thinner and the other end is thicker; 2. the requirements on the dimensional accuracy of the inner hole and the outer circle are high, and the requirements on roundness and coaxiality are also high; 3. the excircle of the end with a large inner hole is small, and the excircle of the end with a small inner hole is large.
During processing, in order to ensure that the inner hole and the outer circle have higher coaxiality, the process method takes the outer circle as a reference to grind the inner hole, and requires one-time clamping to finish grinding two inner hole sizes, namely a first section inner hole 13 and a second section inner hole 14.
In consideration of the three characteristics, the inner hole is ground by clamping once during machining, and the machining can be realized only by feeding from the end with the larger inner hole. The process arrangement of the prior art is as follows:
firstly, during rough machining, reserving allowance for the excircles at two ends according to the size of the larger end, namely the first excircle 12, and then grinding the excircles at two ends to be the same size; then, taking the outer circle as a reference, and grinding an inner hole by an upper clamp; then, turning the outer circle of one end with thinner wall thickness to a small size after finishing grinding the inner hole and reserving grinding quantity; and finally, accurately grinding three outer circles of the center penetrating shaft to the size by taking the inner hole as a reference, wherein the three outer circles are respectively a first outer circle 12, a second outer circle 11b and a third outer circle 11a, and the outer diameters of the second outer circle 11b and the third outer circle 11a are consistent.
The prior art mainly has the following problems: in view of the 3 rd characteristic of the workpiece 1, the outer circles at two ends of the workpiece 1 have to be made into the same size in the process to be used as a reference for machining the inner hole, however, in this way, the end where the second outer circle 11b is located must be turned again by a large margin after the inner hole is ground, and at this time, the machining stress tends to cause the out-of-roundness of the inner hole of the workpiece to be out of tolerance, so that the out-of-tolerance rate of the roundness of the inner hole 14 at the second section after the final workpiece is finished is about 30% -.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
An object of the utility model is to provide an easy detachable thin wall cylinder liner grinds hole anchor clamps.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an easily-detachable clamp for grinding an inner hole of a thin-wall cylinder sleeve comprises a clamp body, a taper sleeve, an outer gland and an inner gland; wherein,
the fixture body comprises a cylindrical main body, the cylindrical main body is horizontally arranged, is provided with an inner cavity and is provided with openings at the left end and the right end; the inner cavity penetrates through the left end opening and the right end opening, and the workpiece is assembled into the inner cavity from the right end opening;
the left end of the inner cavity is provided with a step surface on the right side of the left end opening, and the step surface is annularly arranged and used for abutting against and positioning the left end surface of the workpiece in the axial direction; an inner hole abutting surface is formed at the left end of the inner cavity on the right side of the step surface along the radial direction and used for abutting and positioning a first excircle of the workpiece along the radial direction;
a tapered opening is arranged on the left side of the right end opening of the fixture body, and the diameter of the left end opening of the fixture body is smaller than that of the right end opening of the fixture body and is outwards inclined; the taper sleeve corresponds to the shape of the conical opening, the conical periphery of the taper sleeve is attached to and abutted against the conical opening, and meanwhile, the straight inner peripheral wall of the taper sleeve is abutted against a second outer circle for positioning the workpiece; the right end of the taper sleeve extends out of the right end of the taper opening;
the outer gland is an annular body and is assembled in the right end opening of the fixture body, the outer circle of the outer gland is in threaded fit with the right end opening in the radial direction, and meanwhile, the left end face of the outer gland is abutted against and positions the right end face of the taper sleeve in the axial direction;
the inner gland is also an annular body, the excircle of the inner gland is in threaded fit with the inner hole of the outer gland in the radial direction, and the left end face of the inner gland abuts against and positions the right end face of the workpiece.
The relevant content in the above technical solution is explained as follows:
1. in the scheme, the inner hole abutting surface of the clamp body is in clearance fit with the first excircle of the workpiece.
2. In the above scheme, the straight inner peripheral wall of the taper sleeve is in clearance fit with the second outer circle of the workpiece.
3. In the scheme, at least one equally-divided groove or hole is formed in the periphery of the outer gland.
4. In the scheme, at least one equally-divided groove or hole is formed in the periphery of the inner gland.
The utility model discloses a theory of operation and advantage as follows:
the utility model discloses a solve the second section hole circularity out of tolerance's of work piece problem, from eliminating the influence of machining stress and starting, in other words, the utility model discloses can realize grinding the cutting process of the big surplus that the hole back no longer goes on to the excircle.
The utility model discloses before the excircle and the hole of grinding work piece, all process the position that will need the grinding earlier and only stay the grinding surplus, all the other positions are processed and are in place, then grind the excircle earlier, go up again the utility model discloses an anchor clamps grind the hole of work piece, wear the axle correct grinding excircle at last again. Therefore, the utility model discloses a grinding allowance is less, and processing stress is also less, consequently does not have the too big work piece that causes of processing stress to warp, the super poor problem of precision.
The to-be-solved problem of the utility model is to grind the design of hole anchor clamps, as above, must follow the big one end feed of work piece hole when grinding the hole, just can guarantee once to grind two sections holes. But the 3 rd feature of the workpiece determines that conventional clamping solutions are not suitable. If the inner hole of the clamp is made according to the size of the large excircle of the workpiece, the small end of the excircle is not accurately positioned, and if the inner hole of the clamp is made according to the size of the small excircle, the workpiece cannot be installed into the clamp body at all. The utility model discloses combine work piece characteristic itself, utilize the conical surface from the characteristic of centering, the combination that adopts the anchor clamps body, taper sleeve and outer gland has solved the problem of work piece other than the circle location to through setting up outer gland and interior gland solved the tight problem of work piece axial clamp.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model solves the problems of positioning and clamping the workpiece by utilizing the self-centering function of the conical surface and skillfully combining the taper sleeve, the outer gland and the inner gland;
2. the utility model is convenient to assemble and disassemble with the main shaft of the machine tool;
3. the utility model can effectively avoid the problem of the deformation precision of the inner hole of the workpiece caused by the turning stress;
4. the utility model discloses reduce the turning process after grinding the hole, improved process efficiency.
Drawings
FIG. 1 is a schematic view of a cross-sectional structure of a thin-wall cylinder sleeve workpiece according to the present invention;
FIG. 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the clamp body according to the embodiment of the present invention;
fig. 4 is a schematic sectional structure view of the taper sleeve according to the embodiment of the present invention;
fig. 5 is a schematic sectional structure diagram of an outer gland of the embodiment of the present invention;
fig. 6 is a schematic end face structure diagram of an outer gland of the embodiment of the present invention;
FIG. 7 is a schematic sectional view of an inner gland of the embodiment of the present invention;
figure 8 is the utility model discloses an end face structure schematic diagram of gland in the embodiment.
In the above drawings: 1. a workpiece; 2. a clamp body; 3. a taper sleeve; 4. an outer gland; 5. an inner gland; 6. a first thread formation; 7. a second thread formation; 11a, a third outer circle; 11 b. a second outer circle; 12. a first outer circle; 13. a first section of inner bore; 14. a second section of inner hole; 15. the right end face of the workpiece; 16. a left end face of the workpiece; 20. an inner cavity; 21. an inner bore abutting surface; 22. a tapered opening; 24. a step surface; 26. the left end is open; 27. the right end is open; 31. a tapered outer periphery; 32. an inner peripheral wall; 33. the right end of the taper sleeve; 43. a first abutting surface; 44. a recess or hole; 51. a second abutting surface; 53. a recess or a hole.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to the attached drawings 1 and 2, the easily detachable thin-wall cylinder sleeve inner hole grinding clamp is used for clamping and positioning a thin-wall cylinder sleeve workpiece 1 and comprises a clamp body 2, a taper sleeve 3, an outer pressing cover 4 and an inner pressing cover 5; wherein,
as shown in fig. 2 and 3, the fixture body 2 includes a cylindrical main body, which is horizontally disposed, has an inner cavity 20 and is open at the left and right ends; the inner cavity 20 penetrates through a left end opening 26 and a right end opening 27, and the workpiece 1 is assembled into the inner cavity 20 from the right end opening 27;
the fixture body 2 is clamped through a four-jaw chuck and is positioned on a main shaft of a machine tool through the four-jaw chuck; borrow this design, it is more convenient when being fit for frequently changing different model anchor clamps, only need loosen the four-jaw chuck alright change anchor clamps.
A step surface 24 is arranged at the left end of the inner cavity 20 on the right side of the left end opening 26, and the step surface 24 is annularly arranged and used for abutting against and positioning the left end surface 16 of the workpiece 1 in the axial direction; and, an inner hole abutting surface 21 is formed on the left end of the inner cavity 20 at the right side of the step surface 24 along the radial direction, and is used for abutting and positioning the first outer circle 12 of the workpiece 1 along the radial direction, and the inner hole abutting surface and the first outer circle are in clearance fit.
A tapered opening 22 is arranged on the left side of a right end opening 27 of the fixture body 2, and the diameter of the left end opening of the tapered opening 22 is smaller than that of the right end opening and is outwards inclined; as shown in fig. 4, the taper sleeve 3 corresponds to the shape of the tapered opening 22, the taper sleeve 3 fits and abuts against the tapered opening 22 with its tapered outer periphery 31, and abuts against and positions the second outer circle 11b of the workpiece 1 with its straight inner peripheral wall 32, and the two are in clearance fit; the right end of the taper sleeve 3 extends out of the right end of the taper opening 22;
as shown in fig. 5 and 6, the outer gland 4 is an annular body, and is fitted in the right end opening of the fixture body 2, the outer edge of the outer gland 4 is in threaded fit with the right end opening in the radial direction through the first thread structure 6, and meanwhile, the left end surface of the outer gland 4 abuts against and positions the right end surface 33 of the taper sleeve 3 in the axial direction through a first abutting surface 43; the periphery of the outer gland 4 is provided with at least one equant groove or hole 44, so that the threads can be conveniently screwed by a hook wrench.
As shown in fig. 7 and 8, the inner gland 5 is also an annular body, the outer circle of which is in threaded fit with the inner hole of the outer gland 4 in the radial direction through the second thread structure 7, and the left end of the inner gland 5 abuts against and positions the right end face 15 of the workpiece 1 through a second abutting face 51. At least one equant groove or hole 53 is processed on the periphery of the inner gland 5, so that a hook wrench can be used for screwing threads conveniently.
When the four-jaw chuck is used, firstly, the four-jaw chuck is connected to a main shaft of a machine tool, then the clamp body 2 is clamped through the four-jaw chuck, and a workpiece 1 is arranged in an inner cavity 20 of the clamp body 2; then, a taper sleeve 3 is installed, and an outer gland 4 is installed to enable the taper sleeve 3 to be tightly pressed, so that the workpiece 1 is positioned by taking the outer circle as a reference; finally, the inner gland 5 is directly pressed on the right end face 15 of the workpiece 1, the left end face 16 of the workpiece 1 is positioned by the step face 24 on the fixture body 2, the inner gland 5 is screwed, so that the positioning and clamping of the workpiece 1 are completed, the grinding wheel can enter from the larger end of the inner hole of the workpiece 1, and the two sections of inner holes (13 and 14) of the workpiece 1 can be ground only through one-time clamping. After the processing is finished, the outer gland 5 can be directly released, and the workpiece 1, the taper sleeve 3, the outer gland 4 and the inner gland 5 can be taken out together.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model solves the problems of positioning and clamping the workpiece by utilizing the self-centering function of the conical surface and skillfully combining the taper sleeve, the outer gland and the inner gland;
2. the utility model is convenient to assemble and disassemble with the main shaft of the machine tool;
3. the utility model can effectively avoid the problem of the deformation precision of the inner hole of the workpiece caused by the turning stress;
4. the utility model discloses reduce the turning process after grinding the hole, improved process efficiency.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides an easy detachable thin wall cylinder liner grinds hole anchor clamps which characterized in that:
comprises a clamp body, a taper sleeve, an outer gland and an inner gland; wherein,
the fixture body comprises a cylindrical main body, the cylindrical main body is horizontally arranged, is provided with an inner cavity and is provided with openings at the left end and the right end; the inner cavity penetrates through the left end opening and the right end opening, and a workpiece is assembled into the inner cavity from the right end opening;
the left end of the inner cavity is provided with a step surface on the right side of the left end opening, and the step surface is annularly arranged and used for abutting against and positioning the left end surface of the workpiece in the axial direction; an inner hole abutting surface is formed at the left end of the inner cavity on the right side of the step surface along the radial direction and used for abutting and positioning a first excircle of the workpiece along the radial direction;
a tapered opening is arranged on the left side of the right end opening of the fixture body, and the diameter of the left end opening of the fixture body is smaller than that of the right end opening of the fixture body and is outwards inclined; the taper sleeve corresponds to the shape of the conical opening, the conical periphery of the taper sleeve is attached to and abutted against the conical opening, and meanwhile, the straight inner peripheral wall of the taper sleeve is abutted against a second outer circle for positioning the workpiece; the right end of the taper sleeve extends out of the right end of the taper opening;
the outer gland is an annular body and is assembled in the right end opening of the fixture body, the outer circle of the outer gland is in threaded fit with the right end opening in the radial direction, and meanwhile, the left end face of the outer gland is abutted against and positions the right end face of the taper sleeve in the axial direction;
the inner gland is also an annular body, the excircle of the inner gland is in threaded fit with the inner hole of the outer gland in the radial direction, and the left end face of the inner gland abuts against and positions the right end face of the workpiece.
2. The easy-to-detach thin-wall cylinder sleeve inner hole grinding clamp as claimed in claim 1, is characterized in that: the inner hole abutting surface of the clamp body is in clearance fit with the first excircle of the workpiece.
3. The easy-to-detach thin-wall cylinder sleeve inner hole grinding clamp as claimed in claim 1, is characterized in that: and the straight inner peripheral wall of the taper sleeve is in clearance fit with the second excircle of the workpiece.
4. The easy-to-detach thin-wall cylinder sleeve inner hole grinding clamp as claimed in claim 1, is characterized in that: at least one equant groove or hole is processed on the periphery of the outer gland.
5. The easy-to-detach thin-wall cylinder sleeve inner hole grinding clamp as claimed in claim 1, is characterized in that: at least one equal-dividing groove or hole is formed in the periphery of the inner gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820574777.2U CN208557135U (en) | 2018-04-20 | 2018-04-20 | A kind of quick detachable thin-wall cylinder casing mill internal clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820574777.2U CN208557135U (en) | 2018-04-20 | 2018-04-20 | A kind of quick detachable thin-wall cylinder casing mill internal clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208557135U true CN208557135U (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820574777.2U Active CN208557135U (en) | 2018-04-20 | 2018-04-20 | A kind of quick detachable thin-wall cylinder casing mill internal clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208557135U (en) |
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2018
- 2018-04-20 CN CN201820574777.2U patent/CN208557135U/en active Active
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