CN210160757U - Winding type fixture for machining thin-wall inner hole piece - Google Patents
Winding type fixture for machining thin-wall inner hole piece Download PDFInfo
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- CN210160757U CN210160757U CN201920511031.1U CN201920511031U CN210160757U CN 210160757 U CN210160757 U CN 210160757U CN 201920511031 U CN201920511031 U CN 201920511031U CN 210160757 U CN210160757 U CN 210160757U
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- 238000004804 winding Methods 0.000 title claims description 21
- 238000003754 machining Methods 0.000 title abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a wound form anchor clamps for processing thin wall inner bore piece, anchor clamps include the first fixed connection piece of detachable and first anchor clamps, and detachable second fixed connection piece and second anchor clamps, first, second anchor clamps all include first, second, third and fourth clamping piece, all clamping pieces all include the first of circular arc clamping part and both ends, the second end, the circular arc clamping part of first, fourth clamping piece and second, third clamping piece all overlaps from top to bottom, the circular arc portion of first, second clamping piece and third, fourth clamping piece sets up relatively, all first ends form the fixed part, the second end of first, fourth clamping piece forms first fastening portion, the second end of second, third clamping piece forms second fastening portion, be equipped with the fastening adjusting part between first, the second fastening portion; the first and second fixed connecting blocks are arranged on the chassis, and the central axis of the clamping arc formed by the first and second clamps is perpendicular to the chassis and coaxially arranged. The clamp can realize high-precision machining of the inner hole of the part.
Description
Technical Field
The utility model relates to an anchor clamps technical field, in particular to wound form anchor clamps and processing method for processing thin wall hole spare.
Background
When the inner hole and the outer hole of the thin-wall inner hole piece are machined, the two ends of the piece need to be clamped and fixed through a clamp. Based on the fact that the wall thickness of the thin-wall inner hole piece is thin, when the clamp clamps the part, the phenomenon that the local deformation of the part is large easily occurs, and the out-of-roundness of the cross section of the part is difficult to guarantee.
For example, the conventional three jaw chuck type clamping may deform the part at the position where the part contacts the jaws; the method that the part is inserted into an inner hole of a flange plate, the part is extruded by a screw on the side surface of the flange plate, or the part is clamped by deforming the inner hole of the flange plate can cause the part to deform on the cross section, and the final part processing precision is difficult to guarantee.
Meanwhile, when the inner hole of the thin-wall inner hole piece is machined, the length of the workpiece to be machined is long, the tail end of the workpiece to be machined is prone to swing, and machining precision of parts is further affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wound form anchor clamps for processing thin wall hole spare to the centre gripping that proposes in solving above-mentioned background art leads to the problem that the part warp.
According to a first aspect of the present invention, there is provided a winding type fixture for processing a thin-walled bore piece, which is disposed on a chassis fixed on a processing machine tool, and comprises a first fixed connection block, a second fixed connection block, a first fixture and a second fixture, wherein the first fixture and the second fixture each comprise a first clamping piece, a second clamping piece, a third clamping piece and a fourth clamping piece sequentially disposed from top to bottom, the first clamping piece, the second clamping piece, the third clamping piece and the fourth clamping piece each comprise an arc clamping portion and a first end portion and a second end portion respectively connected to two ends of the arc clamping portion, the arc clamping portions of the first clamping piece and the fourth clamping piece are overlapped with each other, the arc clamping portions of the second clamping piece and the third clamping piece are overlapped with each other, the arc clamping portions of the first clamping piece and the second clamping piece and the arc clamping portions of the third clamping piece and the fourth clamping piece are disposed and overlapped with each other, all the first end parts are connected to form a fixed part, the first clamping piece and the second end part of the fourth clamping piece are connected to form a first fastening part, the second clamping piece and the second end part of the third clamping piece are connected to form a second fastening part, a gap is formed between the first fastening part and the second fastening part, and a fastening adjusting part for adjusting the size of the gap between the first fastening part and the second fastening part is arranged between the first fastening part and the second fastening part;
the fixing part of the first clamp is detachable with the first fixed connecting block, and the fixing part of the second clamp is detachable with the second fixed connecting block;
the first fixed connecting block and the second fixed connecting block are arranged on the chassis, and the central axes of clamping arcs formed by the first clamp and the second clamp are perpendicular to the chassis and coaxially arranged.
The above-mentioned wound form anchor clamps for processing thin wall hole spare's beneficial effect does: the winding type clamp is provided with a first clamp and a second clamp, and can be clamped at two ends of a part to be processed simultaneously. When the outer wall of the middle part of the part to be machined is machined, the part to be machined is clamped only by the first clamp, and the second clamp is not required to be installed; when the inner hole machining is carried out on the part to be machined, the first clamp and the second clamp are clamped at two ends of the part to be machined respectively, so that the tail end of the part to be machined cannot swing when the inner hole is machined, and the machining precision of the part is guaranteed. Meanwhile, the winding type clamp is clamped on the part to be processed through the arc clamping parts of the first clamping piece and the second clamping piece and the arc clamping parts of the third clamping piece and the fourth clamping piece. The clamping device comprises a thin-wall inner hole piece, a first clamping piece, a second clamping piece, a third clamping piece and a fourth clamping piece, wherein the arc clamping parts of the first clamping piece and the second clamping piece and the arc clamping parts of the third clamping piece and the fourth clamping piece form a closed clamping ring with a left part and a right part staggered up and down, and the closed clamping ring is uniformly wound around the thin-wall inner hole piece, so that the thin-wall inner hole piece is uniform in stress, extremely small in deformation, excellent in clamping effect, guaranteed in clamping precision of parts to be machined, and further.
According to the utility model discloses a wound form anchor clamps for processing thin wall hole spare, the fastening adjusting part is first screw rod, first fastening portion or one of them screw hole that is provided with of second fastening portion, first screw rod passes behind the screw hole on a fastening portion butt on another fastening portion.
According to the utility model discloses a wound form anchor clamps for processing thin wall hole spare, wherein be provided with the confession on another one of them of first fastening portion or second fastening portion the terminal male locating hole of first screw rod.
According to the utility model discloses an aspect the wound form anchor clamps for processing thin wall hole spare, the circular arc that all circular arc clamping parts correspond and the thickness homoenergetic of circular arc clamping part self equal.
According to the utility model discloses an aspect the wound form anchor clamps for processing thin wall hole spare, the coincide part size at both ends of circular arc clamping part equals.
According to the utility model discloses an aspect the wound form anchor clamps for processing thin wall hole spare, be provided with the screw thread mounting hole on the fixed part, all be provided with the recess that supplies the fixed part embedding on first fixed connection piece and the second fixed connection piece, be provided with the first waist round hole that runs through first fixed connection piece and second fixed connection piece in the recess, the second screw rod fixed connection of fixed part through inserting first waist round hole.
According to the utility model discloses an aspect the wound form anchor clamps for processing thin wall hole spare, first fixed connection piece and second fixed connection piece pass through bolt fixed connection in chassis, it is provided with the second waist round hole that supplies the bolt to pass to correspond on the chassis.
Drawings
The invention is further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of a first jig (second jig);
FIG. 2 is a schematic structural view of a thin-walled bore member;
FIG. 3 is a schematic structural view of a chassis with a first fixed connecting block mounted thereon;
FIG. 4 is a schematic view of a first clamp being clamped to a thin-walled bore;
FIG. 5 is a schematic structural view of a second fixed connecting block;
fig. 6 is a schematic view of a state in which the first clamp and the second clamp are respectively clamped at both ends of the thin-walled bore member.
Detailed Description
Referring to fig. 1 to 6, an embodiment of the present invention provides a winding jig for processing a thin-wall inner hole member, which includes a first fixed connection block 90, a second fixed connection block 110, a first jig and a second jig. The fixing part 50 of the first clamp is fixedly arranged on the first fixed connecting block 90 through a bolt, and the first fixed connecting block 90 is fixedly arranged on the chassis 100 through a bolt; the fixing part 50 of the second clamp is fixedly installed on a second fixed connecting block 110 through a bolt, and the second fixed connecting block 110 is fixedly installed on the chassis 100 through a bolt; the chassis 100 is fixedly mounted on a rotating shaft of the processing machine. The first clamp and the second clamp are perpendicular to the chassis 100 and are coaxially arranged, so that the clamped thin-wall inner hole piece to be machined is ensured to be perpendicular to the chassis 100, and the machining precision is ensured.
The first clamp and the second clamp are the same clamp, and specifically comprise a first clamping piece 10, a second clamping piece 20, a third clamping piece 30 and a fourth clamping piece 40 which are sequentially arranged from top to bottom, wherein the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 respectively comprise an arc clamping portion 11 and a first end portion and a second end portion 12 which are respectively connected with two ends of the arc clamping portion 11, the arc clamping portions 11 of the first clamping piece 10 and the fourth clamping piece 40 are overlapped up and down, the arc clamping portions 11 of the second clamping piece 20 and the third clamping piece 30 and the fourth clamping piece 40 are oppositely arranged, two ends of the arc clamping portions 11 of the first clamping piece 10 and the second clamping piece 20 are overlapped, all the first end portions are connected to form a fixing portion 50, the second end portions 12 of the first clamping piece 10 and the fourth clamping piece 40 are connected to form a first fastening portion 60, the second clamping piece 20 and the second end portion 12 of the third clamping piece 30 are connected to form a second fastening portion 70, a gap is formed between the first fastening part 60 and the second fastening part 70, and a fastening adjusting member 80 for adjusting the size of the gap between the first fastening part 60 and the second fastening part 70 is disposed between the first fastening part 60 and the second fastening part 70.
The corresponding diameter of the arc clamping part 11 is slightly larger than the outer diameter of the thin-wall inner hole piece 1 to be processed, so that the part can be conveniently mounted on the first clamp or the second clamp. Meanwhile, due to the design of the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 which are thin and form a winding structure, after a force is applied through the fastening adjusting piece 80 positioned between the first fastening part 60 and the second fastening part 70, the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 which are in the elastic winding structure can slightly deform, under the action of the fastening adjusting piece 80, the gap between the first fastening part 60 and the second fastening part 70 gradually increases, the second end part 12 of the first clamping piece 10 and the fourth clamping piece 40 and the second end part 12 of the second clamping piece 20 and the third clamping piece 30 do deviation movement, the closed clamping ring formed between the corresponding arc winding clamping parts 11 relatively reduces, and the purpose of clamping the thin-wall inner hole piece 1 to be processed is achieved.
The winding type clamp is provided with a first clamp and a second clamp, and can be clamped at two ends of a part to be processed simultaneously. The first clamp is clamped on the bottom cylinder wall of the thin-wall inner hole part 1 through the arc clamping parts 11 of the first clamping piece 10 and the second clamping piece 20 and the arc clamping parts 11 of the third clamping piece 30 and the fourth clamping piece 40; when the outer wall of the middle part of the part to be machined is machined, the part to be machined is clamped only by the first clamp, and the second clamp is not required to be installed; the second clamp is clamped on the top cylinder wall of the thin-wall inner hole part 1 through the arc clamping parts 11 of the first clamping piece 10 and the second clamping piece 20 and the arc clamping parts 11 of the third clamping piece 30 and the fourth clamping piece 40; when the inner hole machining is carried out on the part to be machined, the first clamp and the second clamp are clamped at two ends of the part to be machined respectively, so that the tail end of the part to be machined cannot swing when the inner hole is machined, and the machining precision of the part is guaranteed.
The arc clamping parts 11 of the first clamping piece 10 and the second clamping piece 20 and the arc clamping parts 11 of the third clamping piece 30 and the fourth clamping piece 40 form a closed clamping ring with the left part and the right part staggered up and down, and the closed clamping ring is uniformly wound around the thin-wall inner hole piece 1, so that the thin-wall inner hole piece 1 is uniformly stressed, and the clamping effect is excellent. Meanwhile, the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 are symmetrically distributed up and down, so that the moment formed between the first clamping piece 10 and the second clamping piece 20 and the moment formed between the third clamping piece 30 and the fourth clamping piece 40 are mutually offset, the whole thin-wall inner hole piece 1 is prevented from falling, the clamping precision of the thin-wall inner hole piece 1 is ensured, and the high-precision machining is facilitated.
Preferably, the fastening adjuster 80 is a first screw, one of the first fastening portion 60 and the second fastening portion 70 is provided with a threaded hole, and the first screw passes through the threaded hole and abuts against the other one of the first fastening portion 60 and the second fastening portion 70. In this embodiment, the first fastening portion 60 is provided with a threaded hole, the first screw is screwed into the threaded hole, and the tip of the first screw abuts against the second fastening portion 70. After the thin-wall inner hole member 1 to be machined penetrates through the closed clamping ring, the first screw rod is screwed, the first screw rod applies thrust to the second fastening portion 70, the closed clamping ring is uniformly shrunk and wound on the outer wall of the part, and clamping of the member to be machined is completed. Meanwhile, in the embodiment, the second fastening portion 70 is provided with the positioning hole, and the first screw rod is inserted into the positioning hole to realize positioning and locking, so that the clamp failure caused by the first screw rod running out can be avoided.
In order to ensure the clamping effect, the thicknesses of all the arc clamping parts 11 are equal, so that the clamping pieces are ensured to act on the corresponding deformation of the peripheral curved surface of the thin-wall inner hole piece 1 to be processed uniformly; meanwhile, the overlapped parts of the two ends of the arc clamping part 11 are equal in size, so that clamping force is applied to the thin-wall inner hole piece 1 to be processed symmetrically by the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40, the stress balance of the whole thin-wall inner hole piece 1 to be processed is ensured, and the deformation of the thin-wall inner hole piece 1 to be processed due to clamping of the clamp is reduced to the maximum extent.
Preferably, the fixing portion 50 is provided with a plurality of cutting grooves 51, the cutting grooves 51 are positioned between the plurality of clamping pieces, and inner surfaces of the cutting grooves 51 are coplanar with upper and lower surfaces of the clamping pieces, respectively. The partial separation of the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 at the first end part is realized through the cutting groove 51, so that the self deformation capacity of the first clamping piece 10, the second clamping piece 20, the third clamping piece 30 and the fourth clamping piece 40 is improved, and the good performance of the clamp operation is ensured.
In order to facilitate the installation of the first clamp and the second clamp, a threaded mounting hole is formed in the fixing portion 50, grooves 91 for embedding the fixing portion 50 are formed in the first fixed connecting block 90 and the second fixed connecting block 110, a first waist round hole 92 penetrating through the first fixed connecting block 90 and the second fixed connecting block 110 is formed in the grooves 91, the fixing portion 50 is embedded into the grooves 91, then the second screw rod is inserted into the first waist round hole 92, the second screw rod is screwed into the threaded mounting hole, and therefore the fixed installation of the winding type clamp is achieved. The second screw rod can move in the first waist circular hole 92, so that the positions of the first clamp and the second clamp in the groove 91 can be adjusted conveniently.
The first fixed connecting block 90 and the second fixed connecting block 110 are fixedly connected to the chassis 100 by bolts. In order to ensure that the coaxiality of the thin-wall inner hole member 1 is adjustable, a second waist circular hole for a bolt to pass through is correspondingly arranged on the chassis 100. The first fixed connecting block 90 and the second fixed connecting block 110 can be finely adjusted to meet the concentricity requirement of the thin-wall inner hole member 1.
The processing method for processing the thin-wall inner hole piece by using the winding type clamp specifically comprises the following steps:
A. clamping the bottom end of the part to be processed by using a first clamp;
B. processing the middle part of the outer wall of the part to be processed;
C. clamping the upper end of the part to be processed by using a second clamp to fix the two ends of the part to be processed;
D. and (4) processing an inner hole of the part to be processed to obtain a thin-wall inner hole piece.
The winding type clamp is a split type clamp, is flexible to assemble, can well meet the requirement of machining the outer wall of the middle part of a part to be machined, can meet the requirement of machining the inner hole of the part to be machined, and ensures the machining precision of the part in the machining process.
Before steps A, B, C and D, a first clamp and a second clamp are respectively mounted on the chassis 100 through the first fixed connection block 90 and the second fixed connection block 110, then the first clamp and the second clamp are respectively clamped at two ends of the measurement standard component, the chassis 100 is rotated, and the first clamp and the second clamp are aligned. When the first fixture and the second fixture are ensured to be located at the center of the chassis 100, the holes of the positioning pins are drilled and reamed, and the positioning pins are inserted into the reamed holes, so that the first fixed connecting block 90 and the second fixed connecting block 110 are fixed on the chassis 100. And (4) detaching the measurement standard component, and replacing the measurement standard component with the component to be processed, so that the high-precision processing of the component to be processed can be realized.
The winding type clamp is a split type clamp, is flexible to assemble, can well meet the requirement of machining the outer wall of the middle part of a part to be machined, can meet the requirement of machining the inner hole of the part to be machined, and ensures the machining precision of the part in the machining process.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511031.1U CN210160757U (en) | 2019-04-15 | 2019-04-15 | Winding type fixture for machining thin-wall inner hole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511031.1U CN210160757U (en) | 2019-04-15 | 2019-04-15 | Winding type fixture for machining thin-wall inner hole piece |
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| Publication Number | Publication Date |
|---|---|
| CN210160757U true CN210160757U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920511031.1U Active CN210160757U (en) | 2019-04-15 | 2019-04-15 | Winding type fixture for machining thin-wall inner hole piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000581A (en) * | 2019-04-15 | 2019-07-12 | 广东开放大学（广东理工职业学院） | It is a kind of for processing the winding type clamping and processing method of orifice in thin-walled |
-
2019
- 2019-04-15 CN CN201920511031.1U patent/CN210160757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000581A (en) * | 2019-04-15 | 2019-07-12 | 广东开放大学（广东理工职业学院） | It is a kind of for processing the winding type clamping and processing method of orifice in thin-walled |
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