CN215199764U - High-precision deep hole drill for machining - Google Patents
High-precision deep hole drill for machining Download PDFInfo
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- CN215199764U CN215199764U CN202120336328.6U CN202120336328U CN215199764U CN 215199764 U CN215199764 U CN 215199764U CN 202120336328 U CN202120336328 U CN 202120336328U CN 215199764 U CN215199764 U CN 215199764U
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Abstract
The utility model discloses a high-accuracy is deep hole drill for machining, including drilling mechanism, driving motor, the elevating system that the drill bit reciprocated when being used for drilling to the work piece, frame, fixed plate, the fixed plate is located the frame top, elevating system is located the top of fixed plate rear side. The utility model discloses utilize the protection casing to come to carry out the straining to work piece deep hole drilling position, cutting bits when making the drill bit drilling are seen off along the three toper relief hole of protection casing side, thereby reduce splashing of cutting bits and hinder to operating personnel, it is inboard to utilize pipe and circulating pump to send into the protection casing water in the protection casing, come the drill bit and the cutting bits cooling in the protection casing through water, and utilize protection casing and toughened glass ring to make things convenient for and observe the drill bit behavior in operating personnel, and prevent the jam of cutting bits through the water that flows.
Description
Technical Field
The utility model relates to a high-accuracy machining field especially relates to a high-accuracy is deep hole bores for machining.
Background
Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. According to the difference of the processing mode, the processing method can be divided into cutting processing and pressure processing; the main problem encountered when the deep hole is drilled is the problem of cooling the drill bit, and a great deal of cutting chips are discharged during drilling, and the small cutting chips are easy to accumulate at the drilled position, so that the drilling is difficult to discharge chips and the drill bit is easy to damage; meanwhile, when drilling, part of cutting chips can splash under the combined action of the cutting force of the drill bit and water flow, so that operators are easily injured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high accuracy is deep hole bores for machining just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a high-precision deep hole drill for machining comprises a drilling mechanism, a driving motor, a lifting mechanism, a rack and a fixed plate, wherein the lifting mechanism is used for moving a drill bit up and down when a workpiece is drilled, the fixed plate is positioned at the top of the rack, the lifting mechanism is positioned at the top of the rear side of the fixed plate, the drilling mechanism and the driving motor are both positioned on the lifting mechanism, the drilling mechanism is positioned in front of the driving motor, the deep hole drill further comprises a protection mechanism and a circulating mechanism, the protection mechanism comprises a protection cover, a toughened glass ring, a rotating ring, a rubber pad and a spring, the upper end of the spring is connected with the drilling mechanism, the protection cover is installed at the lower end of the spring, the toughened glass ring is installed at the top of the protection cover, the rotating ring is installed at the center of the toughened glass ring, and the rubber pad is installed at the bottom of the protection cover; the circulating mechanism comprises a water collecting bucket, a water collecting hopper, a guide pipe, a circulating pump, a water collecting tank, a supporting plate and a filtering screen plate, wherein the water collecting bucket is located inside the frame, the water collecting hopper is installed at the upper end of the water collecting bucket, the upper end of the guide pipe is installed on the side face of the protective cover, the lower end of the guide pipe is installed on the side face of the bottom of the water collecting bucket, the circulating pump is installed on the side face of the frame, the water collecting tank is installed at the top of the front side of the fixed plate, the supporting plate is installed at the top of the water collecting tank, and the filtering screen plate is arranged on the inner side of the water collecting tank.
Preferably: elevating system is including removing frame, lifter plate, lift cylinder, it passes through bolted connection to remove the frame lower extreme and is in fixed plate rear side top intermediate position, the lifter plate passes through the slotted hole cover and is in remove the frame outside, lift cylinder fixed part passes through bolted connection and is in fixed plate rear side bottom, lift cylinder pars contractilis is installed lifter plate bottom both sides.
According to the arrangement, the two telescopic parts of the lifting cylinder are used for driving the lifting plate to move up and down on the moving frame, so that the drilling mechanism is driven to perform drilling processing on a workpiece.
Preferably: elevating system is including removing frame, lifter plate, lead screw, elevator motor, it passes through bolted connection to remove the frame lower extreme and is in fixed plate rear side top intermediate position, the lifter plate passes through the slotted hole cover and is in remove the frame outside, the elevator motor fixed part passes through bolted connection and is in fixed plate rear side bottom, the lead screw passes through the bearing and connects the fixed plate with remove between the frame.
According to the arrangement, the lifting motor rotating part is utilized to drive the lead screw to rotate, the lifting plate is driven to move up and down on the moving frame through the rotation of the lead screw, and therefore the drilling mechanism is driven to perform drilling processing on a workpiece.
Preferably: the drilling mechanism comprises a drill bit seat, a fixed seat and a drill bit, wherein the upper side of the drill bit seat is connected to the front side of the lifting plate through a bearing, the fixed seat is connected to the front side of the bottom of the lifting plate through a bolt and located on the outer side of the drill bit seat, and the drill bit is installed at the lower end of the drill bit seat.
According to the arrangement, the drill head seat is used for fixing the drill head, and the drill head seat is used for driving the drill head to rotate, so that the drill head can drill a workpiece.
Preferably: the driving motor is connected to the rear side of the bottom of the lifting plate through a bolt, and the rotating part of the driving motor is in transmission connection with the upper end of the drill bit seat through a belt.
According to the arrangement, the upper end of the drill bit seat is driven to rotate by the driving motor rotating part through belt transmission, so that drilling power is provided for the drill bit.
Preferably: the spring with the fixing base passes through welded connection, the toughened glass ring with the protection casing passes through sealed gluey bonding, the rubber pad with the protection casing passes through the draw-in groove and is connected.
According to the arrangement, the protective cover is pressed on the top of a workpiece by utilizing the elastic force of the spring, and meanwhile, the protective cover is supported and damped by utilizing the rubber pad.
Preferably: the water collecting bucket is connected with the water collecting barrel in a welded mode, the guide pipe is connected with the water collecting barrel in a welded mode, the circulating pump is connected with the rack through bolts, the water collecting tank is connected with the fixing plate through bolts, and the supporting plate is connected with the water collecting tank through a clamping groove.
According to the arrangement, the water collecting tank is used for collecting the water and the cutting scraps sent out by the protective cover, the filter screen plate and the water collecting hopper are used for filtering and collecting the water, and then the water in the water collecting barrel is pumped into the protective cover through the circulating pump and the guide pipe.
Preferably: and a rotating groove is formed in the outer side of the rotating ring, and lubricating silicone grease is coated between the rotating ring and the toughened glass ring.
According to the arrangement, the rotary ring is utilized to rotate along with the drill bit when the drill bit drills, and the drill bit can stretch into and stretch out of the center of the rotary ring.
Preferably: circular through holes are formed in the middle positions of the water receiving tank, the middle position of the top of the rack and the middle position of the front side of the fixing plate, and the rack is connected with the fixing plate through bolts.
According to the arrangement, the fixed plate is supported and fixed by the rack, and the lifting mechanism is fixed by the fixed plate.
Preferably: three conical discharge holes are formed in the side face of the protective cover, and meanwhile the protective cover is made of tempered glass and the inner wall of the protective cover is very smooth.
According to the arrangement, the spiral cutting chips are sent out by the three conical discharge holes on the side surface of the protective cover.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the protective cover is utilized to fasten the deep hole drilling position of the workpiece, so that cutting chips during drilling of the drill bit are sent out along three conical discharge holes on the side surface of the protective cover, and the phenomenon that operators are injured by splashing of the cutting chips is reduced;
2. the water in the protective cover is sent into the inner side of the protective cover by using the guide pipe and the circulating pump, the drill bit and the cutting chips in the protective cover are cooled by the water, the working condition of the drill bit is conveniently observed by an operator by using the protective cover and the toughened glass ring, and the cutting chips are prevented from being blocked by the flowing water.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of an embodiment 1 of a deep hole drill for high-precision machining according to the present invention;
fig. 2 is a schematic structural view of an embodiment 2 of a deep hole drill for high-precision machining according to the present invention;
fig. 3 is a partial part diagram of an embodiment 1 of a lifting mechanism of a deep hole drill for high-precision machining according to the present invention;
fig. 4 is a partial part diagram of an embodiment 2 of the lifting mechanism of the deep hole drill for high-precision machining according to the present invention;
FIG. 5 is a partial part view of a shield of a deep hole drill for high precision machining according to the present invention;
FIG. 6 is a partial diagram of a rubber pad of a deep hole drill for high precision machining according to the present invention;
FIG. 7 is a partial view of a drilling mechanism of a deep hole drill for high precision machining according to the present invention;
figure 8 is the utility model discloses a high-accuracy machining is with local part drawing of swivel becket of deep hole brill.
The reference numerals are explained below:
1. a protection mechanism; 2. a circulating mechanism; 3. a drilling mechanism; 4. a drive motor; 5. a lifting mechanism; 6. a frame; 7. a fixing plate; 11. a protective cover; 12. a tempered glass ring; 13. a rotating ring; 14. a rubber pad; 15. a spring; 21. a water collection barrel; 22. a water collecting hopper; 23. a conduit; 24. a circulation pump; 25. a water collecting tank; 26. a support plate; 27. a filter screen plate; 31. a bit seat; 32. a fixed seat; 33. a drill bit; 51. a movable frame; 52. a lifting plate; 53. a lifting cylinder; 513. a lead screw; 514. a lifting motor.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be further explained with reference to the accompanying drawings:
a high-precision deep hole drill for machining comprises a drilling mechanism 3, a driving motor 4, a lifting mechanism 5 used for moving a drill up and down when a workpiece is drilled, a rack 6 and a fixing plate 7, wherein the fixing plate 7 is positioned at the top of the rack 6, the lifting mechanism 5 is positioned at the top of the rear side of the fixing plate 7, the drilling mechanism 3 and the driving motor 4 are both positioned on the lifting mechanism 5, the drilling mechanism 3 is positioned in front of the driving motor 4, the deep hole drill further comprises a protection mechanism 1 and a circulating mechanism 2, the protection mechanism 1 comprises a protection cover 11, a toughened glass ring 12, a rotating ring 13, a rubber pad 14 and a spring 15, the upper end of the spring 15 is connected with the drilling mechanism 3, the protection cover 11 is installed at the lower end of the spring 15, the toughened glass ring 12 is installed at the top of the protection cover 11, the rotating ring 13 is installed at the center of the toughened glass ring 12, and the rubber pad 14 is installed at the bottom of the protection cover 11; the circulating mechanism 2 comprises a water collecting bucket 21, a water collecting hopper 22, a guide pipe 23, a circulating pump 24, a water collecting tank 25, a supporting plate 26 and a filter screen plate 27, wherein the water collecting bucket 21 is positioned inside the rack 6, the water collecting hopper 22 is installed at the upper end of the water collecting bucket 21, the upper end of the guide pipe 23 is installed on the side face of the protective cover 11, the lower end of the guide pipe 23 is installed on the side face of the bottom of the water collecting bucket 21, the circulating pump 24 is installed on the side face of the rack 6, the water collecting tank 25 is installed at the top of the front side of the fixing plate 7, the supporting plate 26 is installed at the top of the water collecting tank 25, and the filter screen plate 27 is arranged on the inner side of the water collecting tank 25.
Example 1
As shown in fig. 1, 3, 5, 6, 7 and 8, the lifting mechanism 5 includes a moving frame 51, a lifting plate 52 and a lifting cylinder 53, the lower end of the moving frame 51 is connected to the middle position of the top of the rear side of the fixed plate 7 through a bolt, the lifting plate 52 is sleeved outside the moving frame 51 through a slotted hole, the fixed part of the lifting cylinder 53 is connected to the bottom of the rear side of the fixed plate 7 through a bolt, the telescopic parts of the lifting cylinder 53 are installed on the two sides of the bottom of the lifting plate 52, and the two telescopic parts of the lifting cylinder 53 are used for driving the lifting plate 52 to move up and down on the moving frame 51, so as to drive the drilling mechanism 3 to drill a workpiece; the drilling mechanism 3 comprises a drill bit seat 31, a fixed seat 32 and a drill bit 33, wherein the upper side of the drill bit seat 31 is connected to the front side of the lifting plate 52 through a bearing, the fixed seat 32 is connected to the front side of the bottom of the lifting plate 52 through a bolt and is positioned outside the drill bit seat 31, the drill bit 33 is installed at the lower end of the drill bit seat 31, the drill bit 33 is fixed through the drill bit seat 31, and meanwhile, the drill bit seat 31 is used for driving the drill bit 33 to rotate, so that the drill bit 33 can drill a workpiece; the driving motor 4 is connected to the rear side of the bottom of the lifting plate 52 through a bolt, the rotating part of the driving motor 4 is connected with the upper end of the drill bit seat 31 through belt transmission, and the rotating part of the driving motor 4 is used for driving the upper end of the drill bit seat 31 to rotate through belt transmission, so that drilling power is provided for the drill bit 33; the spring 15 is connected with the fixed seat 32 in a welding mode, the toughened glass ring 12 is bonded with the protective cover 11 through sealant, the rubber pad 14 is connected with the protective cover 11 through a clamping groove, the protective cover 11 is pressed on the top of a workpiece by the aid of elasticity of the spring 15, and the protective cover 11 is supported and damped by the rubber pad 14; the water collecting bucket 22 is connected with the water collecting bucket 21 in a welding mode, the guide pipe 23 is connected with the water collecting bucket 21 in a welding mode, the circulating pump 24 is connected with the rack 6 through bolts, the water collecting groove 25 is connected with the fixing plate 7 through bolts, the supporting plate 26 is connected with the water collecting groove 25 through a clamping groove, water and cutting scraps sent out from the protective cover 11 are collected through the water collecting groove 25, meanwhile, the water is filtered and collected through the filter screen plate 27 and the water collecting bucket 22, and then water in the water collecting bucket 21 is pumped into the protective cover 11 through the circulating pump 24 and the guide pipe 23; a rotating groove is formed in the outer side of the rotating ring 13, lubricating silicone grease is coated between the rotating ring 13 and the toughened glass ring 12, the rotating ring 13 is utilized to rotate along with the drill bit 33 when the drill bit 33 drills a hole, and the drill bit 33 can extend into and out of the center of the rotating ring 13; circular through holes are formed in the middle of the water receiving groove 25, the middle of the top of the rack 6 and the middle of the front side of the fixing plate 7, the rack 6 is connected with the fixing plate 7 through bolts, the fixing plate 7 is supported and fixed by the rack 6, and the lifting mechanism 5 is fixed by the fixing plate 7; three conical discharge holes are formed in the side face of the protective cover 11, meanwhile, the protective cover 11 is made of toughened glass, the inner wall of the protective cover is very smooth, and spiral cutting chips are sent out through the three conical discharge holes in the side face of the protective cover 11.
The working principle is as follows: when the device is used, a workpiece needing drilling is placed at the top of the supporting plate 26, then the upper end of the drill bit seat 31 is driven to rotate by the rotating part of the driving motor 4 through belt transmission, the drill bit 33 is driven to rotate through the rotation of the drill bit seat 31, then the telescopic part of the lifting cylinder 53 drives the lifting plate 52 to move downwards along the moving frame 51, and the drill bit 33 rotating at a high speed is driven to approach the drilling position through the downward movement of the lifting plate 52; along with the downward movement of the lifting plate 52, the spring 15 starts to compress and push the protective cover 11 and the rubber pad 14 to be pressed on the top of the workpiece, along with the continuous movement of the lifting plate 52, the drill bit 33 rotating at high speed gradually extends into the center of the rotating ring 13, meanwhile, the circulating pump 24 is used for pumping the water in the water collecting barrel 21 into the protective cover 11 through the conduit 23, so that the protective cover 11 is filled with the water and the water is sent out from the discharge hole in the side surface of the protective cover 11, meanwhile, when the workpiece contacted with the drill bit 33 is drilled, the water in the protective cover 11 is used for cooling the drill bit 33 and cutting chips, and meanwhile, because the inner wall of the protective cover 11 is smooth and three flowing water flows in the protective cover 11, the cutting chips cut by the drill bit 33 can be sent out along the discharge hole in the side surface of the protective cover 11; the sent cutting chips and water fall on the supporting plate 26, the temperature-reduced water and the cutting chips fall on the filter screen plate 27 through the supporting plate 26, the cutting chips and the water are filtered by the filter screen plate 27, and the filtered water is guided into the water collecting bucket 21 through the water collecting bucket 22, so that the next recycling is facilitated.
Example 2
As shown in fig. 2 and 4, the difference between the embodiment 2 and the embodiment 1 is that the lifting mechanism 5 includes a moving frame 51, a lifting plate 52, a lead screw 513 and a lifting motor 514, the lower end of the moving frame 51 is connected to the middle position of the top of the rear side of the fixed plate 7 through a bolt, the lifting plate 52 is sleeved outside the moving frame 51 through a slot hole, the fixing part of the lifting motor 514 is connected to the bottom of the rear side of the fixed plate 7 through a bolt, the lead screw 513 is connected between the fixed plate 7 and the moving frame 51 through a bearing, the rotating part of the lifting motor 514 is used for driving the lead screw 513 to rotate, and the lifting plate 52 is driven to move up and down on the moving frame 51 through the rotation of the lead screw 513, so as to drive the drilling mechanism 3 to perform the drilling process on the workpiece.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a high-accuracy is deep hole drill for machining, includes drilling mechanism (3), driving motor (4), elevating system (5), frame (6), fixed plate (7) that the drill bit reciprocated when being used for drilling the work piece, fixed plate (7) are located frame (6) top, elevating system (5) are located the top of fixed plate (7) rear side, drilling mechanism (3) with driving motor (4) all are located elevating system (5) are last, drilling mechanism (3) are located driving motor (4) the place ahead, its characterized in that: the drilling machine is characterized by further comprising a protection mechanism (1) and a circulating mechanism (2), wherein the protection mechanism (1) comprises a protection cover (11), a toughened glass ring (12), a rotating ring (13), a rubber pad (14) and a spring (15), the upper end of the spring (15) is connected with the drilling mechanism (3), the protection cover (11) is installed at the lower end of the spring (15), the toughened glass ring (12) is installed at the top of the protection cover (11), the rotating ring (13) is installed in the center of the toughened glass ring (12), and the rubber pad (14) is installed at the bottom of the protection cover (11); circulating mechanism (2) include collector bucket (21), water catch bowl (22), pipe (23), circulating pump (24), water collecting tank (25), backup pad (26), filter screen board (27), collector bucket (21) are located inside frame (6), water catch bowl (22) are installed collector bucket (21) upper end, install pipe (23) upper end protection casing (11) side, pipe (23) lower extreme is installed collector bucket (21) bottom side, circulating pump (24) are installed frame (6) side, water collecting tank (25) are installed the top of fixed plate (7) front side, backup pad (26) are installed water collecting tank (25) top, filter screen board (27) set up water collecting tank (25) inboard.
2. The deep hole drill for high-precision machining according to claim 1, characterized in that: elevating system (5) is including removing frame (51), lifter plate (52), lift cylinder (53), it passes through bolted connection to remove frame (51) lower extreme fixed plate (7) rear side top intermediate position, lifter plate (52) pass through the slotted hole cover remove the frame (51) outside, lift cylinder (53) fixed part passes through bolted connection fixed plate (7) rear side bottom, lift cylinder (53) pars contractilis are installed lifter plate (52) bottom both sides.
3. The deep hole drill for high-precision machining according to claim 1, characterized in that: elevating system (5) is including removing frame (51), lifter plate (52), lead screw (513), elevator motor (514), it passes through bolted connection to remove frame (51) lower extreme fixed plate (7) rear side top intermediate position, lifter plate (52) pass through the slotted hole cover remove the frame (51) outside, elevator motor (514) fixed part passes through bolted connection fixed plate (7) rear side bottom, lead screw (513) pass through the bearing and connect fixed plate (7) with remove between the frame (51).
4. The deep hole drill for high precision machining according to claim 2 or 3, characterized in that: drilling mechanism (3) are including drill bit seat (31), fixing base (32), drill bit (33), drill bit seat (31) upside is passed through the bearing and is connected lifter plate (52) front side, fixing base (32) pass through bolted connection lifter plate (52) bottom front side and be located the drill bit seat (31) outside, install drill bit (33) drill bit seat (31) lower extreme.
5. The deep hole drill for high-precision machining according to claim 4, characterized in that: the driving motor (4) is connected to the rear side of the bottom of the lifting plate (52) through a bolt, and the rotating part of the driving motor (4) is in transmission connection with the upper end of the drill bit seat (31) through a belt.
6. The deep hole drill for high-precision machining according to claim 4, characterized in that: the spring (15) and the fixed seat (32) are connected through welding, the toughened glass ring (12) and the protective cover (11) are bonded through sealing glue, and the rubber pad (14) and the protective cover (11) are connected through a clamping groove.
7. The deep hole drill for high-precision machining according to claim 1, characterized in that: the water collecting bucket (22) is connected with the water collecting bucket (21) in a welding mode, the guide pipe (23) is connected with the water collecting bucket (21) in a welding mode, the circulating pump (24) is connected with the rack (6) through bolts, the water collecting tank (25) is connected with the fixing plate (7) through bolts, and the supporting plate (26) is connected with the water collecting tank (25) through a clamping groove.
8. The deep hole drill for high-precision machining according to claim 1, characterized in that: a rotating groove is formed in the outer side of the rotating ring (13), and lubricating silicone grease is coated between the rotating ring (13) and the toughened glass ring (12).
9. The deep hole drill for high-precision machining according to claim 1, characterized in that: circular through holes are formed in the middle of the water receiving groove (25), the middle of the top of the rack (6) and the middle of the front side of the fixing plate (7), and the rack (6) is connected with the fixing plate (7) through bolts.
10. The deep hole drill for high-precision machining according to claim 1, characterized in that: three conical discharge holes are formed in the side face of the protective cover (11), and meanwhile the protective cover (11) is made of tempered glass and the inner wall of the protective cover is very smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336328.6U CN215199764U (en) | 2021-02-05 | 2021-02-05 | High-precision deep hole drill for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120336328.6U CN215199764U (en) | 2021-02-05 | 2021-02-05 | High-precision deep hole drill for machining |
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| Publication Number | Publication Date |
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| CN215199764U true CN215199764U (en) | 2021-12-17 |
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| CN202120336328.6U Active CN215199764U (en) | 2021-02-05 | 2021-02-05 | High-precision deep hole drill for machining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055714A (en) * | 2022-07-28 | 2022-09-16 | 江苏军友新材料科技有限公司 | Multifunctional mechanical part drilling device |
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2021
- 2021-02-05 CN CN202120336328.6U patent/CN215199764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055714A (en) * | 2022-07-28 | 2022-09-16 | 江苏军友新材料科技有限公司 | Multifunctional mechanical part drilling device |
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