CN111842962A - Tool clamping device for boring special-shaped hole - Google Patents
Tool clamping device for boring special-shaped hole Download PDFInfo
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- CN111842962A CN111842962A CN202010573779.1A CN202010573779A CN111842962A CN 111842962 A CN111842962 A CN 111842962A CN 202010573779 A CN202010573779 A CN 202010573779A CN 111842962 A CN111842962 A CN 111842962A
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- hole
- mandrel
- cutter
- shaped
- boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a cutter clamping device for boring a special-shaped hole, which comprises a clamping body, a mandrel, a locking plug screw, an end cover, a cutter sleeve, a cutter, an adjusting plug screw and an adjusting base, wherein the mandrel is arranged on the clamping body; the upper end of the clamping body is a Morse outer cone, the lower end of the clamping body is a cylindrical accommodating body, and the side part of the accommodating body is at least provided with a sliding sleeve; the mandrel comprises an upper section and a lower section, the lower end of the long compression spring abuts against the top end of the upper section of the mandrel, a second through hole is formed in the bottom of the accommodating body, the end cover is connected to the lower opening of the second through hole, and a guide mechanism A is arranged between the lower section of the mandrel and the end cover; the cutter sleeve is step-shaped, and the cutter is detachably inserted in the cutter sleeve; the locking plug screw is matched with the internal thread at the top end of the sliding sleeve, the upper part of the end face of the tail end of the cutter sleeve is provided with a spherical contact, the spherical contact is in contact with the profiling surface at the upper section of the mandrel, and a guide mechanism B is arranged between the cutter sleeve and the sliding sleeve. The special-shaped hole machining device is simple in structure, scientific and reasonable, high in machining precision, low in design and manufacturing cost and convenient for machining special-shaped holes.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to a tool clamping device for boring a special-shaped hole.
Background
Boring, which refers to further processing of the forged, cast, or drilled hole. The boring hole can enlarge the aperture, improve the precision, reduce the surface roughness and better correct the deflection of the original hole axis.
Various large special-shaped holes, such as large arc holes, large conical holes and the like, are frequently processed in production, and because a common boring machine can only process cylindrical holes and does not have the function of processing the holes, a forming cutter is used or a processing center is used for processing, and because the processing equipment of the processing center is expensive, the corresponding processing cost is higher.
Therefore, it is necessary to invent a tool holding device for boring a special-shaped hole to solve the above problems.
Disclosure of Invention
The invention aims to provide a tool clamping device for boring a special-shaped hole, which has a simple structure, is scientific and reasonable, and is convenient for processing the special-shaped hole so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a cutter clamping device for boring a special-shaped hole comprises a clamping body, a mandrel, a locking screw plug, an end cover, a cutter sleeve, a cutter, an adjusting screw plug and an adjusting base;
the upper end of the clamping body is a Morse outer cone, the lower end of the clamping body is a cylindrical accommodating body, the side part of the accommodating body is at least provided with a sliding sleeve, a first through hole is arranged in the sliding sleeve, the lower end of the Morse outer cone is provided with a first blind hole communicated with the inner cavity of the accommodating body, and a long compression spring is arranged in the first blind hole;
The mandrel comprises an upper section and a lower section, the lower end of the long compression spring abuts against the top end of the upper section of the mandrel, a second through hole is formed in the bottom of the accommodating body, the end cover is connected to the lower opening of the second through hole, a third through hole is formed in the bottom end of the end cover, the upper section of the mandrel is in sliding fit with the second through hole and the inner wall of the end cover, the lower section of the mandrel is in sliding fit with the third through hole, a guide mechanism A is arranged between the lower section of the mandrel and the end cover, the adjusting screw plug is rotatably connected to the bottom end of the lower section of the mandrel;
the cutter sleeve is step-shaped, and the cutter is detachably connected to the cutter sleeve; locking plug screw thread and sliding sleeve top interior screw-thread fit are equipped with the fourth through-hole on the locking plug screw, and the outer cylinder of tail end and the interior sliding fit of first through-hole of knife pouch, and be equipped with short compression spring between the tail end of knife pouch and the locking plug screw, short compression spring outline and the interior sliding fit of first through-hole, the outer cylinder of knife pouch head end and the interior sliding fit of fourth through-hole, the terminal surface upper portion of knife pouch tail end is equipped with spherical contact, and the contact of the imitative face of spherical contact and dabber upper segment, and is equipped with guiding mechanism B between knife pouch and the sliding sleeve.
The invention has the further improvement scheme that the first blind hole is step-shaped, the small hole at the upper end is in sliding fit with the outer contour of the long compression spring, and the large hole at the lower end is in sliding fit with the upper section of the mandrel; the top end of the upper section of the mandrel is fixedly connected with an upper short shaft, and the outer cylinder of the upper short shaft is excessively matched with the inner hole of the long compression spring.
The invention has the further improvement scheme that the bottom end of the lower section of the mandrel is fixedly connected with a lower short shaft, the outer cylinder of the lower short shaft is in interference fit with the inner hole of the thrust ball bearing, the upper end of the adjusting screw plug is provided with a second blind hole, and the second blind hole is in interference fit with the outer circle of the lower retainer ring of the thrust ball bearing.
The invention has the further improvement scheme that the guide mechanism A comprises a fastening screw at the end of an inner hexagonal long cylinder and a guide groove; the guide groove is arranged on the outer wall of the lower section of the mandrel, a transverse threaded through hole is formed in a third through hole of the end cover, the inner hexagonal long cylindrical end holding screw is in threaded fit with the threaded through hole, and a cylinder of the inner hexagonal long cylindrical end holding screw is in sliding fit with the guide groove.
According to a further improvement scheme of the invention, a square third blind hole is formed in the head end of the cutter sleeve, a cutter is in clearance fit with the inner wall of the third blind hole, vertical threaded through holes are respectively formed in the upper surfaces of the outer circles of the two ends of the cutter sleeve, the cutter is locked in the third blind hole through an inner hexagonal compression bolt, and the inner hexagonal compression bolt is positioned outside the sliding sleeve.
According to a further improvement scheme of the invention, the guide mechanism B comprises a guide hole and an inner hexagonal cone end adjusting bolt, the long waist-shaped guide hole is arranged at the upper end of the sliding sleeve, the inner hexagonal cone end adjusting bolt is in threaded fit with the threaded through hole at the tail end of the cutter sleeve, and the inner hexagonal cone end adjusting bolt is in sliding fit with the guide hole.
The invention has the further improvement scheme that the locking plug screw is step-shaped, and a small cylinder of the locking plug screw is excessively matched with an inner hole of the short compression spring.
The invention has the further improvement scheme that the profiling surface of the upper section of the mandrel is a convex arc surface, a concave arc surface or a conical surface.
The invention has the further improvement scheme that the two sliding sleeves are arranged in bilateral symmetry, and the clamping bodies are integrally T-shaped.
According to a further improvement scheme of the invention, an adjusting rod for adjusting the extension length of the cutter is arranged in the third blind hole, the adjusting rod is cylindrical and is in sliding fit with the third blind hole, one end of the adjusting rod is in contact with the tail end of the cutter, the other end of the adjusting rod is provided with a chamfer, and the chamfer is in contact with the conical surface of the inner hexagonal cone end adjusting bolt.
The invention has the beneficial effects that:
first, the tool holding device for boring the special-shaped hole of the invention has the advantages of simple structure, scientific and reasonable structure, high processing precision, low design and manufacturing cost and convenient processing of the special-shaped hole.
Secondly, the tool clamping device for boring the special-shaped holes can replace mandrels with different shapes to realize the processing of various special-shaped holes such as concave arcs, convex arcs, cones and the like, thereby enlarging the processing range.
Thirdly, the cutter clamping device for boring the special-shaped hole has wider application range and can be widely adapted to machine tools such as vertical boring machines, vertical milling machines, vertical drilling machines, radial drilling machines and the like.
Fourthly, the sliding sleeves are symmetrically arranged left and right, so that double-cutter cutting is guaranteed, rough and fine machining is realized, and the production efficiency is improved.
Fifthly, according to the tool clamping device for boring the special-shaped hole, the adjusting rod for adjusting the extending length of the tool is arranged in the third blind hole, and the extending length of the tool can be finely adjusted under the action of pressing the chamfer of the length adjusting rod by the adjusting bolt at the inner hexagonal conical end, so that the size precision of the hole is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an overall sectional view of the present invention when a concave arc hole is processed.
Fig. 3 is an overall sectional view of the present invention when machining a convex arc hole.
FIG. 4 is a schematic view of a clamping body according to the present invention.
Fig. 5 is a schematic view of the structure of the knife pouch of the present invention.
Fig. 6 is a schematic structural view of the locking plug screw of the present invention.
Fig. 7 is a schematic view of the end cap structure of the present invention.
In the figure: 1-clamping body, 101-Morse outer cone, 102-accommodating body, 103-sliding sleeve, 1031-guide hole, 2-mandrel, 201-mandrel upper section, 202-mandrel lower section, 203-profiling surface, 204-upper short shaft, 205-lower short shaft, 206-guide groove, 3-locking screw plug, 4-end cover, 5-knife sleeve, 6-knife, 7-adjusting screw plug, 8-adjusting base, 9-long compression spring, 10-spherical contact, 11-thrust ball bearing, 12-inner hexagonal long cylindrical end fastening screw, 13-inner hexagonal compression bolt, 14-inner hexagonal cone end adjusting bolt, 15-adjusting rod and 16-short compression spring.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Example 1: as shown in fig. 1 to 7, a tool clamping device for boring a special-shaped hole includes a clamping body 1, a mandrel 2, a locking screw plug 3, an end cover 4, a tool sleeve 5, a tool 6, an adjusting screw plug 7 and an adjusting base 8; the upper end of the clamping body 1 is provided with a Morse outer cone 101, the lower end of the clamping body is provided with a cylindrical accommodating body 102, the side part of the accommodating body 102 is at least provided with a sliding sleeve 103, a first through hole is arranged in the sliding sleeve 103, the lower end of the Morse outer cone 101 is provided with a first blind hole communicated with the inner cavity of the accommodating body 102, and a long compression spring 9 is arranged in the first blind hole; the mandrel 2 comprises an upper section and a lower section, the lower end of the long compression spring 9 abuts against the top end of the mandrel upper section 201, a second through hole is formed in the bottom of the accommodating body 102, the end cover 4 is fixedly connected to the lower opening of the second through hole through a hexagon head bolt, a third through hole is formed in the bottom end of the end cover 4, the mandrel upper section 201 is in sliding fit with the second through hole and the inner wall of the end cover 4, the mandrel lower section 202 is in sliding fit with the third through hole, a guide mechanism A is arranged between the mandrel lower section 202 and the end cover 4, the adjusting screw plug 7 is rotatably connected to the bottom end of the mandrel lower section 202, and the internal thread of the adjusting base 8 is in; the cutter sleeve 5 is step-shaped, and the cutter 6 is detachably connected to the cutter sleeve 5; the locking screw plug 3 is in threaded fit with the top end of the sliding sleeve 103, a fourth through hole is formed in the locking screw plug 3, the outer cylinder of the tail end of the cutter sleeve 5 is in sliding fit in the first through hole, a short compression spring 16 is arranged between the tail end of the cutter sleeve 5 and the locking screw plug 3, the outer contour of the short compression spring 16 is in sliding fit with the first through hole, the outer cylinder of the head end of the cutter sleeve 5 is in sliding fit with the fourth through hole, a spherical contact 10 is arranged on the upper portion of the end face of the tail end of the cutter sleeve 5, the spherical contact 10 is in contact with the profiling surface 203 of the upper section 201 of the mandrel, and a guide mechanism B is; the first blind hole is step-shaped, the small hole at the upper end is in sliding fit with the long compression spring 9, and the large hole at the lower end is in sliding fit with the upper section 201 of the mandrel; the top end of the mandrel upper section 201 is fixedly connected with an upper short shaft 204, and the outer cylinder of the upper short shaft 204 is excessively matched with the inner hole of the long compression spring 9; the bottom end of the lower mandrel section 202 is fixedly connected with a lower short shaft 205, the outer cylinder of the lower short shaft 205 is in interference fit with the inner hole of the thrust ball bearing 11, the upper end of the adjusting screw plug 7 is provided with a second blind hole, and the second blind hole is in interference fit with the outer cylinder of a lower retainer ring of the thrust ball bearing 11; the guide mechanism A comprises an inner hexagonal long cylindrical end set screw 12 and a guide groove 206; the guide groove 206 is arranged on the outer wall of the lower section 202 of the mandrel, a transverse threaded through hole is formed in a third through hole of the end cover 4, the inner hexagonal long cylindrical end set screw 12 is in threaded fit with the threaded through hole, and the cylinder of the inner hexagonal long cylindrical end set screw 12 is in sliding fit with the guide groove 206; the head end of the tool sleeve 5 is provided with a square third blind hole, the tool 6 is in clearance fit with the inner wall of the third blind hole, the upper surfaces of the outer circles at the two ends of the tool sleeve 5 are respectively provided with a vertical threaded through hole, the tool 6 is locked in the third blind hole by an inner hexagonal compression bolt 13, and the inner hexagonal compression bolt 13 is positioned outside the sliding sleeve 103; the guide mechanism B comprises a guide hole 1031 and an inner hexagonal cone end adjusting bolt 14, the long waist-shaped guide hole 1031 is arranged at the upper end of the sliding sleeve 103, the inner hexagonal cone end adjusting bolt 14 is in threaded fit with a threaded through hole at the tail end of the knife sleeve 5, and the inner hexagonal cone end adjusting bolt 14 is in sliding fit with the guide hole 1031; the locking screw plug 3 is step-shaped, and a small cylinder of the locking screw plug 3 is excessively matched with an inner hole of the short compression spring 16; the profiling surface 203 of the mandrel upper section 201 is a convex arc surface, a concave arc surface or a conical surface and the like; the sliding sleeves 103 are arranged symmetrically left and right, and the whole clamping body 1 is T-shaped.
Example 2: the embodiment is a further improvement of the embodiment 1, and the main improvement is that the fine adjustment of the extension length of the cutter 6 cannot be realized in the use of the embodiment 1; in the present embodiment, the above-mentioned defects can be avoided, specifically:
an adjusting rod 15 for adjusting the extending length of the cutter 6 is arranged in the third blind hole, the adjusting rod 15 is cylindrical and is in sliding fit with the third blind hole, one end of the adjusting rod 15 is in contact with the tail end of the cutter 6, the other end of the adjusting rod 15 is provided with a chamfer, and the chamfer is in contact with the conical surface of the inner hexagonal cone end adjusting bolt 14; when the tool adjusting device is used, the adjusting rod 15 used for adjusting the extending length of the tool 6 is arranged in the third blind hole, and the extending length of the tool 6 can be finely adjusted under the action of pressing down the chamfer of the length adjusting rod 15 by the inner hexagonal cone end adjusting bolt 14, so that the size precision of the hole is ensured.
Otherwise, this embodiment is identical to embodiment 1, and will not be described herein.
The specific working principle of the invention is as follows:
before processing, a corresponding mandrel 2 is selected according to the shape of a hole, the device is assembled according to a drawing 1, a proper cutter 6 and a length adjusting rod 15 are selected according to the size of the hole, the height difference of the tool tips of the two cutters 6 is 1-3 mm, the difference of the extending length is about 1mm, the size of the hole processed by the extending length of the long cutter 6 is ensured to be the final size of the hole, the rough and fine machining of the inner hole can be completed at one time, if the precision requirement of the hole is high, a pressing bolt of the cutter 6 can be loosened slightly firstly, an adjusting bolt 14 at the inner hexagonal conical end is screwed, the extending length of the cutter 6 can be finely adjusted by depending on the contact of the lower conical surface of the pressing rod 15 and the chamfer of the adjusting rod, and the size precision of the hole.
During processing, firstly, the center of a circle of a hole and the axis of a spindle are aligned, then the spindle of the machine tool and the adjusting base 8 are adjusted, the height of the tool point of the tool 6 is slightly higher than the upper plane of the hole, meanwhile, the bottom surface of the adjusting base 8 is ensured to be contacted with the table top of a machine tool workbench, finally, the spindle automatically feeds downwards, under the guiding action of the long compression spring 9 and the inner hexagonal long cylindrical end fastening screw 12, the clamping body 1 drives the tool 6 to rotate from top to bottom while the mandrel 2 keeps moving up and down, and under the guiding action of the short compression spring 16 and the inner hexagonal cone end adjusting bolt 14, the spherical contact 10 on the end face of the tail end of the tool sleeve 5 is always contacted with the profiling surface 203 of the mandrel 2, so that the tool point of the tool operates according to the profile of the profiling.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to 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 within the protection scope of the present invention.
Claims (10)
1. A cutter clamping device for boring a special-shaped hole is characterized in that: the clamping device comprises a clamping body (1), a mandrel (2), a locking plug screw (3), an end cover (4), a knife sleeve (5), a cutter (6), an adjusting plug screw (7) and an adjusting base (8);
The clamping body (1) is provided with a Morse outer cone (101) at the upper end and a cylindrical accommodating body (102) at the lower end, at least one sliding sleeve (103) is arranged on the side part of the accommodating body (102), a first through hole is formed in the sliding sleeve (103), a first blind hole communicated with an inner cavity of the accommodating body (102) is formed in the lower end of the Morse outer cone (101), and a long compression spring (9) is arranged in the first blind hole;
the mandrel (2) comprises an upper section and a lower section, the lower end of the long compression spring (9) abuts against the top end of the upper section (201) of the mandrel, a second through hole is formed in the bottom of the accommodating body (102), the end cover (4) is connected to the lower opening of the second through hole, a third through hole is formed in the bottom end of the end cover (4), the upper section (201) of the mandrel is in sliding fit with the second through hole and the inner wall of the end cover (4), the lower section (202) of the mandrel is in sliding fit with the third through hole, a guide mechanism A is arranged between the lower section (202) of the mandrel and the end cover (4), the adjusting screw plug (7) is rotatably connected to the bottom end of the lower section (202) of the mandrel, and the internal thread of the adjusting base (8;
the cutter sleeve (5) is step-shaped, and the cutter (6) is detachably connected to the cutter sleeve (5); locking plug screw (3) external screw thread and sliding sleeve (103) top interior screw-thread fit are equipped with the fourth through-hole on locking plug screw (3), the tail end outer cylinder and the interior sliding fit of first through-hole of knife cover (5), and be equipped with short compression spring (16) between the tail end of knife cover (5) and locking plug screw (3), short compression spring (16) outline in the interior sliding fit of first through-hole, the interior sliding fit of knife cover (5) head end outer cylinder and fourth through-hole, the terminal surface upper portion of knife cover (5) tail end is equipped with spherical contact (10), and the contact of imitative face (203) of spherical contact (10) and dabber upper segment (201), and be equipped with guiding mechanism B between knife cover (5) and sliding sleeve (103).
2. A tool holding apparatus for boring a shaped hole according to claim 1, wherein: the first blind hole is step-shaped, a small hole at the upper end is in sliding fit with the outer contour of the long compression spring (9), and a large hole at the lower end is in sliding fit with the upper section (201) of the mandrel; the top end of the mandrel upper section (201) is fixedly connected with an upper short shaft (204), and the outer cylinder of the upper short shaft (204) is excessively matched with the inner hole of the long compression spring (9).
3. A tool holding apparatus for boring a shaped hole according to claim 2, wherein: the bottom end of the mandrel lower section (202) is fixedly connected with a lower short shaft (205), the outer cylinder of the lower short shaft (205) is in interference fit with the inner hole of the thrust ball bearing (11), a second blind hole is formed in the upper end of the adjusting screw plug (7), and the second blind hole is in interference fit with the outer cylinder of a lower retaining ring of the thrust ball bearing (11).
4. A tool holding apparatus for boring a shaped hole according to claim 3, wherein: the guide mechanism A comprises an inner hexagonal long cylindrical end set screw (12) and a guide groove (206); the guide groove (206) is formed in the outer wall of the lower section (202) of the mandrel, a transverse threaded through hole is formed in a third through hole of the end cover (4), the inner hexagonal long cylindrical end set screw (12) is in threaded fit with the threaded through hole, and the cylinder of the inner hexagonal long cylindrical end set screw (12) is in sliding fit with the guide groove (206).
5. A tool holding apparatus for boring a shaped hole according to claim 1, wherein: the head end of knife pouch (5) is equipped with square third blind hole, and cutter (6) and the inner wall clearance fit of third blind hole, knife pouch (5) both ends excircle upper surface are equipped with vertical screw thread through-hole respectively, and interior hexagonal clamp bolt (13) lock cutter (6) in the third blind hole, and interior hexagonal clamp bolt (13) are located sliding sleeve (103) outside.
6. A tool holding apparatus for boring a shaped hole according to claim 5, wherein: the guide mechanism B comprises a guide hole (1031) and an inner hexagonal taper end adjusting bolt (14), the guide hole (1031) of the long waist type is formed in the upper end of the sliding sleeve (103), the inner hexagonal taper end adjusting bolt (14) is in threaded fit with a threaded through hole at the tail end of the knife sleeve (5), and the inner hexagonal taper end adjusting bolt (14) is in sliding fit with the guide hole (1031).
7. A tool holding apparatus for boring a shaped hole according to claim 6, wherein: the locking plug screw (3) is step-shaped, and a small cylinder of the locking plug screw (3) is excessively matched with an inner hole of the short compression spring (16).
8. A tool holding apparatus for boring a shaped hole according to claim 1, wherein: the profiling surface (203) of the mandrel upper section (201) is a convex arc surface, a concave arc surface or a conical surface.
9. A tool holding apparatus for boring a shaped hole according to any one of claims 5 to 7, wherein: the sliding sleeves (103) are arranged symmetrically left and right, and the clamping bodies (1) are integrally T-shaped.
10. A tool holding apparatus for boring a shaped hole according to claim 9, wherein: the tool is characterized in that an adjusting rod (15) used for adjusting the extending length of the tool (6) is arranged in the third blind hole, the adjusting rod (15) is cylindrical and is in sliding fit with the third blind hole, one end of the adjusting rod (15) is in contact with the tail end of the tool (6), the other end of the adjusting rod (15) is provided with a chamfer, and the chamfer is in contact with the conical surface of the inner hexagonal cone end adjusting bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573779.1A CN111842962A (en) | 2020-06-22 | 2020-06-22 | Tool clamping device for boring special-shaped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573779.1A CN111842962A (en) | 2020-06-22 | 2020-06-22 | Tool clamping device for boring special-shaped hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111842962A true CN111842962A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010573779.1A Pending CN111842962A (en) | 2020-06-22 | 2020-06-22 | Tool clamping device for boring special-shaped hole |
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| CN (1) | CN111842962A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115609061A (en) * | 2022-10-28 | 2023-01-17 | 河北宏远液压机械有限公司 | Turning lathe tool |
-
2020
- 2020-06-22 CN CN202010573779.1A patent/CN111842962A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115609061A (en) * | 2022-10-28 | 2023-01-17 | 河北宏远液压机械有限公司 | Turning lathe tool |
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