CN112719154A - Drill bit for shearing off reinforcing steel bars in cement wall - Google Patents
Drill bit for shearing off reinforcing steel bars in cement wall Download PDFInfo
- Publication number
- CN112719154A CN112719154A CN202110022499.6A CN202110022499A CN112719154A CN 112719154 A CN112719154 A CN 112719154A CN 202110022499 A CN202110022499 A CN 202110022499A CN 112719154 A CN112719154 A CN 112719154A
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- CN
- China
- Prior art keywords
- drill bit
- cavity
- fixedly arranged
- cement wall
- slide rail
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/003—Multipurpose machines; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a drill bit for cutting off reinforcing steel bars in a cement wall, which comprises the cement wall and reinforcing steel bars poured in the cement wall, wherein the left side of the cement wall is provided with a base, the upper end of the base is provided with a telescopic rod cavity, a lifting telescopic rod is fixedly arranged in the telescopic rod cavity, the device can detect the position and the diameter of the reinforcing steel bars in the cement wall, the device can detect the accurate position of the reinforcing steel bars and detect the diameter of the reinforcing steel bars after moving to the corresponding position, and is convenient for subsequent cutting off, then the drill bit is used for drilling into the wall body, a special cutter arranged on the drill bit is used for cutting off the reinforcing steel bars in the wall body after the drill bit reaches the appointed depth, the thickness of the cutter can be automatically adjusted according to the different diameters of the reinforcing steel bars so as to realize accurate cutting off, the device can automatically remove dust and prevent dust from spreading in the working process, and the device realizes drilling and, the efficiency is improved, and the pressure of workers is reduced.
Description
Technical Field
The invention relates to a drill bit for shearing off reinforcing steel bars in a cement wall, and mainly relates to the technical field of drilling.
Background
The steel bar is steel for reinforced concrete and prestressed reinforced concrete, the cross section of the steel bar is round, sometimes the steel bar is square with round corners, cement and the steel bar are generally used simultaneously when a house is built, the steel bar is embedded into the cement, the ductility of structural member nodes in the building can be improved, the earthquake resistance of the building is enhanced, but the steel bar embedded into a cement wall needs to be cut off sometimes, the steel bar is difficult to cut off at this time, holes need to be punched firstly, and then a special cutting tool needs to be used for cutting off, and the invention improves the defects.
Disclosure of Invention
The invention aims to solve the technical problem of providing a drill bit for shearing reinforcing steel bars in a cement wall, and overcomes the problems.
The invention is realized by the following technical scheme.
The invention relates to a drill bit for shearing off reinforcing steel bars in a cement wall, which comprises the cement wall and reinforcing steel bars poured in the cement wall, wherein a base is arranged on the left side of the cement wall, a telescopic rod cavity is arranged at the upper end of the base, a lifting telescopic rod is fixedly arranged in the telescopic rod cavity, a mounting bottom plate is fixedly arranged at the upper end of the lifting telescopic rod, the lifting telescopic rod can drive the mounting bottom plate to move up and down after being started, a translation slide rail is fixedly arranged at the upper end of the mounting bottom plate, a shell is arranged on the translation slide rail in a sliding manner, the shell is fixedly connected with a slide block in the translation slide rail, a working cavity is arranged in the shell, a power motor is fixedly arranged at the bottom end of the working cavity, a driving gear is fixedly arranged on a power shaft of the power motor, a main drill bit is rotatably arranged in the working cavity, the main drill bit is internally provided with an inner cavity, the inner cavity is internally provided with an inner installation rod in a sliding manner, the inner installation rod is internally provided with a gear cavity, the gear cavity is internally provided with an outer expanding threaded rod in a rotating manner, the upper end and the lower end of the outer expanding threaded rod are connected with outer expanding threaded blocks in a symmetrical threaded manner, the outer expanding threaded rods can drive the outer expanding threaded blocks at two sides to move towards the direction close to or away from each other, one end, away from the inner installation rod, of each outer expanding threaded block is fixedly provided with a shearing blade, the shearing blade is used for cutting off the reinforcing steel bars, the shearing blade is stored in the inner cavity and flushed with the outer surface of the main drill bit in the drilling process, the upper end of the main drill bit is provided with a moving chute, the main drill bit is provided with a collection shell in a sliding manner, the collection shell is fixedly connected with a sliding block in the moving chute, and, the pressing spring is in a compressed state, a collecting cavity is arranged in the collecting shell, a dust collector is fixedly arranged at the left end of the collecting cavity, a dust filtering net is arranged between the dust collector and the collecting cavity, dust generated during drilling can be sucked into the collecting cavity after the dust collector is started, a drill bit clamping block is fixedly arranged at the right end of a power shaft of the power motor, a clamping cavity is arranged in the drill bit clamping block, a clamping magnet is fixedly arranged at the left end of the clamping cavity, a containing cavity is arranged in the shell, a detection slide rail is fixedly arranged at the upper end of the containing cavity, a connecting block is slidably arranged in the containing cavity, the connecting block is fixedly connected with a slide block in the detection slide rail, a connecting electromagnet is fixedly arranged at the right end of the connecting block, a detection drill bit is stored in the containing cavity, an iron block is fixedly arranged at the left end of the detection drill bit, and the iron block can be adsorbed, the utility model discloses a steel bar winding machine, including detection slide rail, detection drill bit, slider, supporting spring, slider, winding slide rail, winding motor, slider fixed connection in the drive slide rail, the detection slide rail can drive after starting the detection slide rail detect the drill bit and be in accomodate the chamber and remove, it is equipped with distance sensor to detect the drill bit right-hand member, the fixed distance sensor that is equipped with about detecting the chamber, it is equipped with the slider to slide in the chamber, the end is equipped with supporting spring about the slider, the slider is close to can take place to remove because magnetic attraction during the reinforcing bar, and these removal can be detected distance sensor, it is equipped with the lift chamber to accomodate the chamber upside, the fixed drive slide rail that is equipped with in lift chamber upper end, the slip of drive slide rail downside is equipped with winding motor, winding motor with slider fixed connection.
Furthermore, the right end of the inner installation rod is vertically symmetrically fixed with the blade telescopic rod, the tail end of the blade telescopic rod is fixedly provided with a reaming blade, and the reaming blade is used for reaming and is convenient to extend outwards from the shearing blade.
Furthermore, a driven bevel gear is fixedly arranged on the external expansion threaded rod, a bevel gear shaft is rotatably arranged in the gear cavity, a driving bevel gear is fixedly arranged at the right end of the bevel gear shaft, the driving bevel gear is meshed with the driven bevel gear, and the bevel gear shaft can drive the external expansion threaded rod to rotate.
Furthermore, an electric telescopic rod is fixedly arranged on the shell, an adsorption electromagnet is fixedly arranged at the right end of the electric telescopic rod, and the adsorption electromagnet can adsorb the left end of the main drill bit and pull the main drill bit to move left and right after being electrified.
The invention has the beneficial effects that: the device can detect the position and the diameter of the steel bar in the cement wall, after the device is moved to the corresponding position, the device can detect the accurate position of the steel bar by using a thin ceramic drill bit and detect the diameter of the steel bar so as to facilitate subsequent cutting, then the device can drill into the wall by using a drill bit, when the device drills to the specified depth, the steel bar in the wall is cut by using a special cutter arranged on the drill bit, the thickness of the cutter can be automatically adjusted according to the different diameters of the steel bar so as to realize accurate cutting, in addition, the device can automatically remove dust and prevent dust from spreading in the working process, the device realizes drilling and cutting by using one drill bit, the efficiency is improved, and the pressure of workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
FIG. 3 is an enlarged schematic view of B of FIG. 2;
FIG. 4 is an enlarged schematic view of C in FIG. 2;
fig. 5 is an enlarged schematic view of D in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The drill bit for shearing off the reinforcing steel bars in the cement wall is described by combining the attached drawings 1-5, and comprises a cement wall 11 and reinforcing steel bars 10 poured in the cement wall 11, wherein a base 16 is arranged on the left side of the cement wall 11, an expansion rod cavity 13 is arranged at the upper end of the base 16, a lifting expansion rod 12 is fixedly arranged in the expansion rod cavity 13, a mounting bottom plate 15 is fixedly arranged at the upper end of the lifting expansion rod 12, the mounting bottom plate 15 can be driven to move up and down after the lifting expansion rod 12 is started, a translation slide rail 14 is fixedly arranged at the upper end of the mounting bottom plate 15, a shell 30 is slidably arranged on the translation slide rail 14, the shell 30 is fixedly connected with a slide block in the translation slide rail 14, a working cavity 28 is arranged in the shell 30, a power motor 35 is fixedly arranged at the bottom end of the working cavity 28, and a drive, the working cavity 28 is rotatably provided with a main drill bit 17, the main drill bit 17 is connected with a driven gear 29 through a spline, the driven gear 29 is meshed with the driving gear 41, the main drill bit 17 is provided with an inner cavity 27, the inner cavity 27 is slidably provided with an inner installation rod 21, the inner installation rod 21 is provided with a gear cavity 33, the gear cavity 33 is rotatably provided with an outer expansion threaded rod 23, the upper end and the lower end of the outer expansion threaded rod 23 are symmetrically and threadedly connected with outer expansion threaded blocks 24, the outer expansion threaded rod 23 can drive the outer expansion threaded blocks 24 at two sides to move towards the direction close to or away from each other after rotating, one end of the outer expansion threaded block 24, which is far away from the inner installation rod 21, is fixedly provided with a shearing blade 22, the shearing blade 22 is used for cutting the reinforcing steel bar 10, and the shearing blade 22 is accommodated in the inner cavity 27 and flush with the outer surface of the main drill, the upper end of the main drill bit 17 is provided with a movable sliding groove 47, the main drill bit 17 is provided with a collection shell 45 in a sliding manner, the collection shell 45 is fixedly connected with a sliding block in the movable sliding groove 47, the left end of the sliding block in the movable sliding groove 47 is connected with the left end of the movable sliding groove 47 and is provided with a compression spring 49, the compression spring 49 is in a compressed state, the collection shell 45 is provided with a collection cavity 44, the left end of the collection cavity 44 is fixedly provided with a dust collector 46, a dust filter screen 48 is arranged between the dust collector 46 and the collection cavity 44, the dust collector 46 can suck dust generated during drilling into the collection cavity 44 after being started, the right end of a power shaft of the power motor 35 is fixedly provided with a drill bit clamping block 61, the drill bit clamping block 61 is provided with a clamping cavity 62, the left end of the clamping cavity 62 is fixedly provided with a clamping magnet 63, the housing 30 is provided with a storage cavity, the upper end of the accommodating cavity 38 is fixedly provided with a detection slide rail 36, the accommodating cavity 38 is internally provided with a connecting block 37 in a sliding manner, the connecting block 37 is fixedly connected with a slide block in the detection slide rail 36, the right end of the connecting block 37 is fixedly provided with a connecting electromagnet 39, the accommodating cavity 38 is internally provided with a detection drill 57, the left end of the detection drill 57 is fixedly provided with an iron block 40, the iron block 40 can be adsorbed and fixed after being electrified by the connecting electromagnet 39 and the clamping magnet 63, the detection slide rail 36 can drive the detection drill 57 to move in the accommodating cavity 38 after being started, the right end of the detection drill 57 is provided with a detection cavity 54, the left end and the right end of the detection cavity 54 are fixedly provided with a distance sensor 53, the detection cavity 54 is internally provided with a slide block 56 in a sliding manner, the left end and the right end of the slide block 56 are provided with supporting springs, the movement can be detected by the distance sensor 53, the upper side of the accommodating cavity 38 is provided with a lifting cavity 52, the upper end of the lifting cavity 52 is fixedly provided with a driving slide rail 59, the lower side of the driving slide rail 59 is provided with a winding motor 60 in a sliding manner, the winding motor 60 is fixedly connected with a slide block in the driving slide rail 59, a power shaft of the winding motor 60 is fixedly provided with a winding reel 58, the winding reel 58 is wound with a pull rope 51, the lower end of the pull rope 51 is connected with an electromagnet 50, and the electromagnet 50 can adsorb the iron block 40 after being electrified.
Advantageously, the right end of the inner mounting rod 21 is vertically symmetrical to fix the blade extension rod 19, the end of the blade extension rod 19 is fixedly provided with a reaming blade 18, and the reaming blade 18 is used for reaming to facilitate the outward extension of the cutting blade 22.
Advantageously, a driven bevel gear 26 is fixedly arranged on the external expansion threaded rod 23, a bevel gear shaft 34 is rotatably arranged in the gear cavity 33, a driving bevel gear 25 is fixedly arranged at the right end of the bevel gear shaft 34, the driving bevel gear 25 is meshed with the driven bevel gear 26, and the external expansion threaded rod 23 can be driven to rotate by rotating the bevel gear shaft 34.
Beneficially, an electric telescopic rod 31 is fixedly arranged on the housing 30, an adsorption electromagnet 32 is fixedly arranged at the right end of the electric telescopic rod 31, and after the adsorption electromagnet 32 is powered on, the left end of the main drill 17 can be adsorbed and the main drill 17 can be pulled to move left and right.
Sequence of mechanical actions of the whole device:
moving the device to a position to be cut, starting the lifting telescopic rod 12 to extend to push the mounting base plate 15 to a height close to the steel bar 10, connecting the electromagnet 39 to electrify the adsorption iron block 40, starting the detection slide rail 36 to drive the detection drill 57 to slide rightwards, starting the winding motor 60 to drive the winding reel 58 to rotate and release the pull rope 51, moving the electromagnet 50 downwards to be close to the detection drill 57, when the detection drill 57 moves to a proper position, electrifying the electromagnet 50, connecting the electromagnet 39 to be powered off, adsorbing the iron block 40 by the electromagnet 50, starting the winding motor 60 to reversely rotate to drive the winding reel 58 to wind the pull rope 51, pulling the detection drill 57 to move upwards to the clamping cavity 62 by the pull rope 51, starting the driving slide rail 59 to drive the winding motor 60 to slide leftwards, inserting the iron block 40 into the clamping cavity 62 by moving the detection drill 57 leftwards, electrifying the clamping magnet 63 to adsorb the, the power motor 35 is started to drive the drill clamping block 61 to rotate, the translation slide rail 14 is started to drive the shell 30 to move rightwards, the detection drill 57 drills into the cement wall 11, when the right end of the detection drill 57 is close to the steel bar 10, the slide block 56 slides rightwards in the detection cavity 54, the distance sensor 53 can detect the tiny movement of the slide block 56, then the translation slide rail 14 drives the shell 30 to slide leftwards to draw out the detection drill 57, the lifting telescopic rod 12 is started to push the shell 30 upwards for a short distance, then the detection drill 57 drills into the cement wall 11, the precise position of the steel bar 10 is confirmed through the repeated drilling of the detection drill 57, after the position confirmation of the steel bar 10 is completed, the detection drill 57 is placed back into the accommodating cavity 38 again by using the electromagnet 50, the lifting telescopic rod 12 is started to extend to push the shell 30 to move upwards to enable the main drill 17 to face the steel bar 10, the blade telescopic rod 19 is, the diameter between the reaming blades 18 on the two sides is the diameter of the steel bar 10, the electric telescopic rod 31 starts to extend to push the main drill bit 17 to move rightwards to contact the left end of the cement wall 11, the power motor 35 starts to drive the driving gear 41 to rotate, the driving gear 41 drives the driven gear 29 and the main drill bit 17 to rotate, the electric telescopic rod 31 pushes the main drill bit 17 to move rightwards, the main drill bit 17 starts to drill, when the right end of the main drill bit 17 is close to the steel bar 10, the driving bevel gear shaft 34 rotates, the bevel gear shaft 34 drives the driving bevel gear 25 to rotate, the driving bevel gear 25 drives the driven bevel gear 26 and the external reaming threaded rod 23 to rotate, the external reaming threaded rod 23 drives the shearing blades 22 on the two sides to move towards the direction away from each other, the diameter between the shearing blades 22 on the two sides is the, the bevel gear shaft 34 is pushed rightwards, the bevel gear shaft 34 drives the inner mounting rod 21 to move rightwards until the right end of the shearing blade 22 exceeds the right end of the main drill bit 17, the electric telescopic rod 31 continues to push the main drill bit 17 to move rightwards, the right end of the main drill bit 17 does not undertake drilling work any more, the right end of the shearing blade 22 starts drilling, the right end of the shearing blade 22 contacts the steel bar 10 after moving for a short distance, the steel bar 10 is cut off by continuing moving rightwards, cutting is completed, meanwhile, the right end of the collecting shell 45 clings to the left end of the cement wall 11 in the drilling process, and the dust collector 46 is started to suck dust generated.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof 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 (5)
1. The utility model provides a drill bit for cutting reinforcing bar in cement wall, includes cement wall and pours the reinforcing bar in the cement wall which characterized in that: the cement wall is characterized in that a base is arranged on the left side of the cement wall, a telescopic rod cavity is arranged at the upper end of the base, a lifting telescopic rod is fixedly arranged in the telescopic rod cavity, a mounting bottom plate is fixedly arranged at the upper end of the lifting telescopic rod, the lifting telescopic rod can drive the mounting bottom plate to move up and down after being started, a translation slide rail is fixedly arranged at the upper end of the mounting bottom plate, a shell is arranged on the translation slide rail in a sliding manner, a sliding block in the translation slide rail is fixedly connected with the shell, a working cavity is arranged in the shell, a power motor is fixedly arranged at the bottom end of the working cavity, a driving gear is fixedly arranged on a power shaft of the power motor, a main drill bit is arranged in the working cavity in a rotating manner, a driven gear is connected to a spline on the main drill bit, the driven gear is meshed with the driving, the outer expanding threaded rod is arranged in the gear cavity in a rotating mode, the upper end and the lower end of the outer expanding threaded rod are symmetrically in threaded connection with outer expanding threaded blocks, the outer expanding threaded blocks on two sides can be driven to move towards directions close to or away from each other after the outer expanding threaded rods rotate, one end, away from the inner mounting rod, of each outer expanding threaded block is fixedly provided with a shearing blade, the shearing blade is used for cutting off the steel bars, the shearing blade is stored in the inner cavity and flush with the outer surface of the main drill bit in the drilling process, a movable sliding groove is formed in the upper end of the main drill bit, a collecting shell is arranged on the main drill bit in a sliding mode, the collecting shell is fixedly connected with a sliding block in the movable sliding groove, a compression spring is connected and arranged between the left end of the sliding block in the movable sliding groove and the left end of the movable sliding groove, the, a dust collector is fixedly arranged at the left end of the collecting cavity, a dust filtering net is arranged between the dust collector and the collecting cavity, dust generated during drilling can be sucked into the collecting cavity after the dust collector is started, a drill bit clamping block is fixedly arranged at the right end of a power shaft of the power motor, a clamping cavity is arranged in the drill bit clamping block, a clamping magnet is fixedly arranged at the left end of the clamping cavity, a containing cavity is arranged in the shell, a detection slide rail is fixedly arranged at the upper end of the containing cavity, a connecting block is slidably arranged in the containing cavity and fixedly connected with a slide block in the detection slide rail, a connecting electromagnet is fixedly arranged at the right end of the connecting block, a detection drill bit is stored in the containing cavity, an iron block is fixedly arranged at the left end of the detection drill bit and can be adsorbed and fixed by the connecting electromagnet and the clamping electrified magnet, and can be driven to move in the containing cavity after the detection slide rail is started, detect the drill bit right-hand member and be equipped with and detect the chamber, it is fixed with distance sensor to detect the chamber left and right sides, it is equipped with the slider to slide in the chamber to detect, the end is equipped with supporting spring about the slider, the slider is close to can take place to remove because magnetic attraction during the reinforcing bar, these remove can by distance sensor detects, it is equipped with the lift chamber to accomodate the chamber upside, the fixed drive slide rail that is equipped with in lift chamber upper end, the slide of drive slide rail downside is equipped with the spiral motor, the spiral motor with slider fixed connection in the drive slide rail, the fixed spool that is equipped with on the power shaft of spiral motor, the winding has the stay cord on the spool, the stay cord lower extreme is connected with the electro-magnet, can adsorb after the electro-magnet.
2. A drill bit for shearing reinforcing steel bars in a cement wall as recited in claim 1, wherein: the right end of the inner mounting rod is vertically symmetrical to fix the blade telescopic rod.
3. A drill bit for shearing reinforcing bars in a cement wall according to claim 2, wherein: the tail end of the blade telescopic rod is fixedly provided with a reaming blade, and the reaming blade is used for reaming and is convenient to cut the blade and extend outwards.
4. A drill bit for shearing reinforcing steel bars in a cement wall as recited in claim 1, wherein: the external expansion threaded rod is fixedly provided with a driven bevel gear, a bevel gear shaft is arranged in the gear cavity in a rotating mode, a driving bevel gear is fixedly arranged at the right end of the bevel gear shaft, the driving bevel gear is meshed with the driven bevel gear, and the bevel gear shaft can drive the external expansion threaded rod to rotate.
5. A drill bit for shearing reinforcing steel bars in a cement wall as recited in claim 1, wherein: the electric telescopic handle is fixedly arranged on the shell, the adsorption electromagnet is fixedly arranged at the right end of the electric telescopic handle, and the adsorption electromagnet can adsorb the left end of the main drill bit and pull the main drill bit to move left and right after being electrified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022499.6A CN112719154A (en) | 2021-01-08 | 2021-01-08 | Drill bit for shearing off reinforcing steel bars in cement wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022499.6A CN112719154A (en) | 2021-01-08 | 2021-01-08 | Drill bit for shearing off reinforcing steel bars in cement wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112719154A true CN112719154A (en) | 2021-04-30 |
Family
ID=75591204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110022499.6A Withdrawn CN112719154A (en) | 2021-01-08 | 2021-01-08 | Drill bit for shearing off reinforcing steel bars in cement wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112719154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116652604A (en) * | 2023-05-31 | 2023-08-29 | 滨中元川金属制品（昆山）有限公司 | High-precision bidirectional drilling processing technology based on stainless steel tiny parts |
-
2021
- 2021-01-08 CN CN202110022499.6A patent/CN112719154A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116652604A (en) * | 2023-05-31 | 2023-08-29 | 滨中元川金属制品（昆山）有限公司 | High-precision bidirectional drilling processing technology based on stainless steel tiny parts |
| CN116652604B (en) * | 2023-05-31 | 2024-04-12 | 滨中元川金属制品（昆山）有限公司 | High-precision bidirectional drilling processing technology based on stainless steel tiny parts |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210430 |
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| WW01 | Invention patent application withdrawn after publication |