CN210160426U - Special boring cutter for die carrier with large adjustable range of bore diameter - Google Patents
Special boring cutter for die carrier with large adjustable range of bore diameter Download PDFInfo
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- CN210160426U CN210160426U CN201920321305.0U CN201920321305U CN210160426U CN 210160426 U CN210160426 U CN 210160426U CN 201920321305 U CN201920321305 U CN 201920321305U CN 210160426 U CN210160426 U CN 210160426U
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- 238000003754 machining Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 7
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- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model provides a special boring cutter for a die carrier with a large adjustable range of bore hole diameter, which comprises a handle and a tool bit arranged at the end of the handle, wherein one end of the handle is connected with a machine tool, the end surface of the other end is provided with a first tool bit fixing part, a second tool bit fixing part and a boring cutter extension bar, and the boring cutter extension bar comprises a bar body and a third tool bit fixing part; the first cutter head fixing piece, the second cutter head fixing piece and the third cutter head fixing piece are respectively provided with a cutter head fixing hole and a limiting hole perpendicular to the cutter head fixing hole, and the cutter head penetrates through the cutter head fixing hole; two rows of step through holes are formed in the rod body, and two rows of extension rod fixing holes are correspondingly formed in the end face between the first cutter head fixing piece and the second cutter head fixing piece. The tool bit is a precision fine-adjustable boring tool bit. The utility model discloses a boring cutter, the bore hole of the wider diameter scope of workable, machining precision is high moreover, and the bore hole is with low costs.
Description
Technical Field
The utility model belongs to the technical field of the die carrier processing, in particular to special boring cutter of die carrier that bore hole aperture adjustable range is big.
Background
The boring cutter is one of boring cutters and can be used on a boring machine, a lathe or a milling machine. The boring cutter comprises a cutter handle and a cutter head arranged at the tail end of the cutter handle, the cutter handle is generally in a round handle shape, and a square cutter handle used for a larger workpiece is also arranged. The most common occasions of the boring cutter are inner hole processing, hole expanding, profiling and the like of the boring cutter. The tool head of a boring tool usually has one or two cutting parts, a tool which is dedicated to the roughing, semi-finishing or finishing of existing holes.
In the prior art, the adjusting range of the precision-grade finely-adjustable boring tool bit is small, and the boring in a large aperture range cannot be effectively processed by the boring tool bit in a single model. If a boring hole with a wider diameter range needs to be machined, boring cutter heads of different models need to be arranged, so that the adjustability of the boring cutter in the mold base machining field is not strong, the boring cost is increased, and the machining precision of the boring hole is poor. Secondly, in order to realize the processing of the bore hole with a larger diameter, a cutter head with a larger length is needed, which requires that the structure strength of the boring cutter head is higher, and the material cost of the cutter head is increased.
Therefore, there is a need for an improved boring tool for mold frame processing to overcome the above technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a special boring cutter of die carrier that bore hole aperture adjustable range is big to overcome the above-mentioned technical problem among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a special boring cutter of die carrier that bore hole aperture adjustable range is big, includes the handle of a knife and installs the terminal tool bit of handle of a knife, the terminal blade of installation of tool bit, wherein:
one end of the cutter handle is connected with a machine tool, a first cutter head fixing piece, a second cutter head fixing piece and a boring cutter extension bar are arranged on the end face of the other end of the cutter handle, and the boring cutter extension bar comprises a bar body and a third cutter head fixing piece arranged at one end of the bar body; the first cutter head fixing piece, the second cutter head fixing piece and the third cutter head fixing piece are respectively provided with a cutter head fixing hole and a limiting hole perpendicular to the cutter head fixing hole, the cutter head penetrates through the cutter head fixing hole, the fixing piece penetrates through the limiting hole, and the tail end of the fixing piece is abutted against the cutter head, so that the cutter head is fixedly arranged on the first cutter head fixing piece, the second cutter head fixing piece or the third cutter head fixing piece;
the two tool bit fixing holes formed in the first tool bit fixing piece and the second tool bit fixing piece are coaxial, and the orthographic projection of the central shaft AB passes through the circle center O of the end face; the distance L1 from the mounting end surface P1 of the first cutter head fixing piece to the circle center O is greater than the distance L2 from the mounting end surface P2 of the second cutter head fixing piece to the circle center O; the cutter head is a precision fine-adjustable boring cutter head, the distance from the blade to the rotating center of the cutter head can be adjusted through a size scale ring at the tail end of the cutter head, and the mounting end face is an end face used for limiting the cutter head on the first cutter head fixing piece or the second cutter head fixing piece;
two rows of through holes are formed in the rod body, two rows of extension rod fixing holes are correspondingly formed in the end face between the first cutter head fixing piece and the second cutter head fixing piece, the fixing pieces penetrate through the through holes and are inserted into the extension rod fixing holes, and the extension rod of the boring cutter can be fixed on the end face.
According to the utility model discloses, the whole round platform type that is of handle of a knife, the minor diameter end and the lathe of handle of a knife are connected, set up on the terminal surface of major diameter end first tool bit mounting, second tool bit mounting and boring cutter extension bar.
Preferably, the end surface of the small-diameter end of the tool shank is provided with a tool shank connecting part for connecting with a machine tool.
Further preferably, the handle connecting part is cylindrical.
According to the utility model discloses, on the orthographic projection drawing, the axis process of the tool bit fixed orifices on the third tool bit mounting the centre of a circle O of terminal surface.
According to the utility model discloses, first tool bit mounting, second tool bit mounting and third tool bit mounting are whole to be rectangular size structure, follow the width direction of first tool bit mounting, second tool bit mounting and third tool bit mounting has been seted up respectively the tool bit fixed orifices.
According to the utility model discloses, first tool bit mounting and second tool bit mounting all with handle of a knife integrated into one piece, third tool bit mounting with pole body integrated into one piece.
According to the utility model discloses, the end of pole body has the chamfer, first sword head mounting is kept away from the outside of centre of a circle O has the chamfer, so that pole body or first sword head mounting do not influence at the bore hole in-process the operation of boring cutter.
According to the utility model, the diameter of the end face of the large-diameter end is 100-130mm, the width of the first tool bit fixing piece and the width of the second tool bit fixing piece are 20-30mm, and the length of the first tool bit fixing piece and the second tool bit fixing piece are 50-70 mm; the third cutter head fixing part is 20-40mm in width, 40-60mm in length and 40-60mm in width.
According to a preferred technical scheme of the utility model, the end face diameter of the large diameter end is 119mm, the widths of the first cutter head fixing piece and the second cutter head fixing piece are respectively 25mm, the width of the third cutter head fixing piece is 30mm, and the width of the rod body is 45 mm;
in an orthographic projection view, a distance L1 from the mounting end surface P1 of the first cutter head fixing member to the circle center O is 53.5mm, and a distance L2 from the mounting end surface P2 of the second cutter head fixing member to the circle center O is 41.5 mm.
Further, the length L of the tool bit is 56mmm, and the diameter of the tool bit isΦD is 20mm, and the maximum width S of the blade is 7 mm;
when the tool bit is installed on the first tool bit fixing part, the machining aperture range of the boring tool is 150-170mm, when the tool bit is installed on the second tool bit fixing part, the machining aperture range of the boring tool is 150-150 mm, and when the tool bit is installed on the third tool bit fixing part, the machining aperture range of the boring tool is 400-520 mm.
Compared with the prior art, the utility model discloses following beneficial technological effect has:
1) the utility model discloses a special boring cutter of die carrier that bore hole adjustable range is big is provided with first tool bit mounting, second tool bit mounting, boring cutter extension bar and the third tool bit mounting on it, and the distance L1 of the installation terminal surface P1 of first tool bit mounting to centre of a circle O is greater than with the installation terminal surface P2 of second tool bit mounting to the distance L2 of centre of a circle O, and the fixed position of pole body on the handle of a knife can be adjusted in a flexible way, therefore, adopt current tool bit also can process the bore hole of wider bore hole range, and the machining precision is high; when the boring hole with larger aperture is processed, the requirement on the strength of the tool bit is reduced, the existing tool bit model is not required to be changed, the boring cost is reduced, and the processing precision of the boring hole is ensured.
2) The utility model discloses a special boring cutter of die carrier that bore hole aperture adjustable range is big, length L when the tool bit is 56mmm, and the diameter Do of tool bit is 20mmm, when the maximum width S of blade is 7mm, applicable in the diameter be 120 and become 170mm, 400 become the finish machining of the bore hole of 520mm scope.
3) The utility model discloses a special boring cutter of die carrier that bore hole aperture adjustable range is big's structure uncomplicated, and the industrial production practicality is strong.
Drawings
Fig. 1 is the structure schematic diagram of the special boring tool for the die carrier with a large adjustable range of bore hole diameter of the utility model.
FIG. 2 is a front view of the boring tool with the bit mounted.
FIG. 3 is a front view of the boring tool without the tool bit and the extension rod.
Fig. 4 is a front view of the structure of the boring cutter extension bar.
Fig. 5 is a schematic structural view of the boring tool.
In the figure: 1-knife handle, 2-knife head, (3-1) -first knife head fixing piece, (3-2) -second knife head fixing piece, (3-3) third knife head fixing piece, 31-knife head fixing hole, 32-limiting hole, 4-boring cutter extension bar, (P1, P2) -installation end face, 11-knife handle connecting part, 12-extension bar fixing hole, 13-end face of the other end (end face of large diameter end), 21-knife blade, 22-size scale ring, 41-bar body, 42-step through hole, (43, 33) -chamfer.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings by specific embodiments. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the utility model provides a special boring cutter of die carrier that bore hole aperture adjustable range is big, include handle of a knife 1 and install 1 terminal tool bit 2 of handle of a knife, the terminal installation blade 21 of tool bit 2, wherein:
one end of the cutter handle 1 is connected with a machine tool, a first cutter head fixing part 3-1, a second cutter head fixing part 3-2 and a boring cutter extension bar 4 are arranged on the end surface 13 of the other end of the cutter handle, and the boring cutter extension bar 4 comprises a bar body 41 and a third cutter head fixing part 3-3 arranged at one end of the bar body 41; the first cutter head fixing piece 3-1, the second cutter head fixing piece 3-2 and the third cutter head fixing piece 3-3 are respectively provided with a cutter head fixing hole 31 and a limiting hole 32 perpendicular to the cutter head fixing hole 31, the cutter head 2 penetrates through the cutter head fixing hole 31, a fixing piece (such as a screw) penetrates through the limiting hole 32, and the tail end of the fixing piece abuts against the cutter head 2, so that the cutter head 2 is fixedly mounted on the first cutter head fixing piece 3-1, the second cutter head fixing piece 3-2 or the third cutter head fixing piece 3-3.
As shown in fig. 3, the two tool bit fixing holes 31 formed in the first tool bit fixing part 3-1 and the second tool bit fixing part 3-2 are coaxial, and the orthographic projection of the central axis AB passes through the center O of the end face; the distance L1 from the mounting end surface P1 of the first cutter head fixing piece 3-1 to the circle center O is greater than the distance L2 from the mounting end surface P1 of the second cutter head fixing piece 3-2 to the circle center O; the tool bit 2 is a precision-grade finely-adjustable boring tool bit, the distance from the blade 21 to the rotation center of the tool bit 2 can be adjusted through a size scale ring 22 at the tail end of the tool bit 2, and the mounting end face is an end face used for limiting the tool bit 2 on the first tool bit fixing piece 3-1 or the second tool bit fixing piece 3-2.
Two rows of step through holes 42 are formed in the rod body 41, two rows of extension rod fixing holes 12 are correspondingly formed in the end face between the first cutter head fixing piece 3-1 and the second cutter head fixing piece 3-2, and fixing pieces (such as screws) penetrate through the step through holes 42 and are inserted into the extension rod fixing holes 12, so that the boring cutter extension rod 4 can be fixed on the end face.
The utility model discloses a special boring cutter of die carrier that bore hole aperture adjustable range is big is provided with first tool bit mounting 3-1, second tool bit mounting 3-2, boring cutter extension bar 4 and the third tool bit mounting 3-3 on it, and the distance L1 of the mounting end face P1 of first tool bit mounting 3-1 to centre of a circle O is greater than with the mounting end face P2 of second tool bit mounting 3-2 to the distance L2 of centre of a circle O, the fixed position of pole body 41 on the handle of a knife 1 can be adjusted in a flexible way, therefore, adopt the bore hole of the workable wider bore hole range of current tool bit 2, and the machining precision is high; when the boring hole with larger aperture is processed, the strength requirement on the tool bit 2 is reduced, the existing tool bit model does not need to be changed, the boring cost is reduced, and the processing precision of the boring hole is ensured. Meanwhile, the cutter handle is of a circular truncated cone shape, so that the structural strength is enhanced, and the weight of the boring cutter is reduced.
Preferably, as shown in fig. 3, an orthographic projection of the axis of the bit fixing hole 31 of the third bit fixing member 3-3 passes through the center O of the end surface 13.
According to the utility model discloses, handle of a knife 1 wholly is the round platform type, the minor diameter end of handle of a knife 1 is connected with the lathe, sets up on the terminal surface 13 of major diameter end first tool bit mounting 3-1, second tool bit mounting 3-2 and boring cutter extension bar 3-3.
Preferably, the shank 1 has a shank coupling portion 11 on an end face of the small diameter end thereof for coupling to a machine tool.
Further preferably, the shank coupling portion 11 is cylindrical.
According to the utility model discloses, handle of a knife connecting portion 11 is connected with the transmission shaft of BT40/BT50 special machine tool.
According to the utility model discloses, first tool bit mounting 3-1, second tool bit mounting 3-2 and third tool bit mounting 3-3 are the cuboid type structure as a whole, have seted up respectively along the width direction of first tool bit mounting 3-1, second tool bit mounting 3-2 and third tool bit mounting 3-3 tool bit fixed orifices 31.
According to the utility model discloses, first tool bit mounting 3-1 and second tool bit mounting 3-2 all with 1 integrated into one piece of handle of a knife, third tool bit mounting 3-23 with pole body 41 integrated into one piece.
As shown in fig. 3 and 4, according to the present invention, the end of the rod body 41 has a chamfer 43, and the outer side of the first bit fixing member 3-1 away from the center O has a chamfer, so that the operation of the boring tool is not affected by the rod body 41 or the first bit fixing member 3-1 during the boring process.
In the utility model discloses, the size of handle of a knife 1, tool bit 2, first tool bit mounting 3-1, second tool bit mounting 3-2, third tool bit mounting 3-3, boring cutter extension bar 4 can change according to actual need.
According to the preferred embodiment of the present invention, the diameter of the end surface 13 of the large diameter end is 100-130mm, the width of the first bit fixing member 3-1 and the second bit fixing member 3-2 is 20-30mm, and the length is 50-70 mm; the third cutter head fixing part 3-3 is 20-40mm wide, 40-60mm long, and the rod body 41 is 40-60mm wide.
According to a specific embodiment of the present invention, the end surface diameter of the large diameter end is 119mm, the widths of the first and second bit holders 3-1 and 3-2 are 25mm, respectively, the width of the third bit holder 3-3 is 30mm, and the width of the rod body 41 is 45 mm;
as shown in fig. 3, in an orthographic projection view, a distance L1 from the mounting end surface P1 of the first tool bit holder 3-1 to the center O is 53.5mm, and a distance L2 from the mounting end surface P2 of the second tool bit holder 3-2 to the center O is 41.5 mm.
As shown in fig. 5, further, the length L of the cutting head 2 is 56mmm, and the diameter of the cutting head 2ΦD is 20mm, and the maximum width S of the blade 21 is 7 mm;
the model FF Unit 20-58S of the tool bit 2, the model TPGT0802OOL of the blade 21 and the model BFTX0307A of the fixing nut.
When the tool bit 2 is mounted on the first tool bit fixing part 3-1, the machining aperture range of the boring tool is 150-170mm, when the tool bit 2 is mounted on the second tool bit fixing part 3-2, the machining aperture range of the boring tool is 150-120 mm, and when the tool bit 2 is mounted on the third tool bit fixing part 3-3, the machining aperture range of the boring tool is 400-520 mm.
The utility model discloses a during the bore hole, will tool bit 2 is installed on second tool bit mounting 3-2, the fine setting the length of tool bit 2 to the aperture requirement that makes accord with the bore hole, then will 1 of handle of a knife is installed on the lathe. The machine tool drives the tool shank 1 to rotate, so that the tool bit 2 is driven to rotate, and the purpose of boring is achieved.
When the aperture of the bored hole exceeds the adjustable range of the cutter head 2, the cutter head 2 can be installed on the first cutter head fixing part 3-1, the length of the cutter head 2 is finely adjusted to meet the aperture requirement of the bored hole, and then the cutter handle is installed on a machine tool. The machine tool drives the tool shank 1 to rotate, so that the tool bit 2 is driven to rotate, and the purpose of boring is achieved.
When a bore hole with a larger bore diameter needs to be machined, the cutter head 2 can be installed on a third cutter head fixing part 3-3, the installation length of the boring cutter extension bar 4 on the end face 13 is adjusted, the length of the cutter head 2 is finely adjusted so as to meet the bore diameter requirement of the bore hole, and then the cutter handle 1 is installed on a machine tool. The machine tool drives the tool shank 1 to rotate, so that the tool bit 2 is driven to rotate, and the purpose of boring is achieved.
Through above-mentioned bore hole operating procedure, the utility model discloses a boring cutter is applicable in the processing of the bore hole of great aperture scope, need not to change the tool bit of different models, and the bore hole precision is high.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (10)
1. The utility model provides a special boring cutter of die carrier that bore hole aperture adjustable range is big which characterized in that, includes the handle of a knife and installs the terminal tool bit of handle of a knife, the terminal installation blade of tool bit, wherein:
one end of the cutter handle is connected with a machine tool, a first cutter head fixing piece, a second cutter head fixing piece and a boring cutter extension bar are arranged on the end face of the other end of the cutter handle, and the boring cutter extension bar comprises a bar body and a third cutter head fixing piece arranged at one end of the bar body; the first cutter head fixing piece, the second cutter head fixing piece and the third cutter head fixing piece are respectively provided with a cutter head fixing hole and a limiting hole perpendicular to the cutter head fixing hole, and the cutter head penetrates through the cutter head fixing hole and is fixedly arranged on the first cutter head fixing piece, the second cutter head fixing piece or the third cutter head fixing piece;
the two tool bit fixing holes formed in the first tool bit fixing piece and the second tool bit fixing piece are coaxial, and the orthographic projection of the central shaft AB passes through the circle center O of the end face; the distance L1 from the mounting end surface P1 of the first cutter head fixing piece to the circle center O is greater than the distance L2 from the mounting end surface P2 of the second cutter head fixing piece to the circle center O; the cutter head is a precision fine-adjustable boring cutter head, the distance from the blade to the rotating center of the cutter head can be adjusted through a size scale ring at the tail end of the cutter head, and the mounting end face is an end face used for limiting the cutter head on the first cutter head fixing piece or the second cutter head fixing piece;
two rows of through holes are formed in the rod body, two rows of extension rod fixing holes are correspondingly formed in the end face between the first cutter head fixing piece and the second cutter head fixing piece, the fixing pieces penetrate through the through holes and are inserted into the extension rod fixing holes, and the extension rod of the boring cutter can be fixed on the end face.
2. The special die carrier boring tool with the large adjustable range of the bore diameter as claimed in claim 1, wherein the whole tool holder is of a circular truncated cone shape, the small-diameter end of the tool holder is connected with a machine tool, and the end surface of the large-diameter end is provided with the first tool bit fixing part, the second tool bit fixing part and the boring tool extension bar.
3. The special die frame boring cutter with the large adjustable range of the bore diameter as claimed in claim 2, wherein the end face of the small-diameter end of the tool shank is provided with a tool shank connecting part for connecting with a machine tool.
4. The special die carrier boring tool with the large adjustable bore diameter as claimed in claim 1, wherein the axis of the tool bit fixing hole on the third tool bit fixing part passes through the center O of the end surface in an orthographic projection view.
5. The special boring tool for the die carrier with the large adjustable range of the bore diameter as claimed in claim 1, wherein the first tool bit fixing member, the second tool bit fixing member and the third tool bit fixing member are integrally of a rectangular structure, and the tool bit fixing holes are respectively formed along the width direction of the first tool bit fixing member, the second tool bit fixing member and the third tool bit fixing member.
6. The special die carrier boring tool with the large adjustable range of the bore diameter as claimed in claim 1, wherein the first tool bit fixing piece and the second tool bit fixing piece are integrally formed with the tool shank, and the third tool bit fixing piece is integrally formed with the shank body.
7. The die carrier special boring cutter with the large adjustable range of bore diameters as claimed in claim 1, wherein the tail end of the rod body is provided with a chamfer, and the outer side of the first cutter head fixing piece, which is far away from the circle center O, is provided with a chamfer, so that the operation of the boring cutter is not influenced by the rod body or the first cutter head fixing piece in a boring process.
8. The special boring tool for the die carrier with the large adjustable range of the bore diameter as claimed in any one of claims 1 to 7, wherein the diameter of the end surface of the large-diameter end is 100-130mm, the width of the first tool bit fixing part and the second tool bit fixing part is 20-30mm, and the length of the first tool bit fixing part and the second tool bit fixing part is 50-70 mm; the third cutter head fixing part is 20-40mm in width, 40-60mm in length and 40-60mm in width.
9. The special die carrier boring tool with the large adjustable range of the bore diameter as claimed in claim 8, wherein the diameter of the end surface of the large-diameter end is 119mm, the widths of the first and second bit holders are respectively 25mm, the width of the third bit holder is 30mm, and the width of the rod body is 45 mm;
in an orthographic projection view, a distance L1 from the mounting end surface P1 of the first cutter head fixing member to the circle center O is 53.5mm, and a distance L2 from the mounting end surface P2 of the second cutter head fixing member to the circle center O is 41.5 mm.
10. The special boring tool for the die carrier with the large adjustable range of the bore diameter as claimed in claim 9, wherein the length L of the tool bit is 56mmm, and the diameter of the tool bit is 56mmmΦD is 20mm, and the maximum width S of the blade is 7 mm;
when the tool bit is installed on the first tool bit fixing part, the machining aperture range of the boring tool is 150-170mm, when the tool bit is installed on the second tool bit fixing part, the machining aperture range of the boring tool is 150-150 mm, and when the tool bit is installed on the third tool bit fixing part, the machining aperture range of the boring tool is 400-520 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920321305.0U CN210160426U (en) | 2019-03-14 | 2019-03-14 | Special boring cutter for die carrier with large adjustable range of bore diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920321305.0U CN210160426U (en) | 2019-03-14 | 2019-03-14 | Special boring cutter for die carrier with large adjustable range of bore diameter |
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| Publication Number | Publication Date |
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| CN210160426U true CN210160426U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920321305.0U Expired - Fee Related CN210160426U (en) | 2019-03-14 | 2019-03-14 | Special boring cutter for die carrier with large adjustable range of bore diameter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101727A (en) * | 2021-12-24 | 2022-03-01 | 浙江菲尔特过滤科技股份有限公司 | Metal fiber machining tool and machining method |
-
2019
- 2019-03-14 CN CN201920321305.0U patent/CN210160426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101727A (en) * | 2021-12-24 | 2022-03-01 | 浙江菲尔特过滤科技股份有限公司 | Metal fiber machining tool and machining method |
| CN114101727B (en) * | 2021-12-24 | 2024-05-14 | 浙江菲尔特过滤科技股份有限公司 | Machining tool and machining method for metal fibers |
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