CN109702904A - A kind of Full automatic penumatic water drilling and its application method - Google Patents

A kind of Full automatic penumatic water drilling and its application method Download PDF

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Publication number
CN109702904A
CN109702904A CN201910169665.8A CN201910169665A CN109702904A CN 109702904 A CN109702904 A CN 109702904A CN 201910169665 A CN201910169665 A CN 201910169665A CN 109702904 A CN109702904 A CN 109702904A
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CN
China
Prior art keywords
water drilling
full automatic
guide rail
sliding block
push
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910169665.8A
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Chinese (zh)
Inventor
武京忠
武传宇
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Lin Shangyu
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Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd filed Critical Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd
Priority to CN201910169665.8A priority Critical patent/CN109702904A/en
Publication of CN109702904A publication Critical patent/CN109702904A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of Full automatic penumatic water drilling and its application methods, including control cabinet, pedestal, monomer column, guide rail, the pedestal upper end is provided with the control cabinet, support column is arranged in the control cabinet side, the guide rail is mounted on the support column side, and sliding block is arranged on the guide rail, and connection frame is mounted on the sliding block side, water drilling is arranged in the connection frame upper end, and water drilling drill bit is mounted on the connection frame.Beneficial effect is: it is structurally reasonable, using the cooperation of push-pull rod and cylinder, it ensure that power and speed that water drilling declines in drilling, it ensure that working efficiency, it is easy to operate, equipment automatic running is controlled using controller, the step of reducing worker operation, simultaneously as the effect of cylinder, improves process velocity, accurate positioning, using position-sensing switch and graduation mark, drilling depth can be accurately determined, while can be at the end of drilling using position-sensing switch, it automatically resets, improves safety.

Description

A kind of Full automatic penumatic water drilling and its application method
Technical field
The present invention relates to water drilling apparatus fields, more particularly to a kind of Full automatic penumatic water drilling and its application method.
Background technique
Water drilling machine is a kind of equipment of punching, is punched on external wall for equipment such as air-conditioning, smoke extractors, general user Method is that the drill bit of water drilling machine is attached on the wall for needing punch position, then makes bit, and drill bit slowly enters wall, most Drill bit passes through wall afterwards, and one will be left on wall for a porthole used in other equipment, needs boring in drill process Add water on head, first is that because the drill bit to spin friction wall cools down, second is that the dust for generating water will during bit Absorption.
But existing water drilling is in use, is all hand-held use, it cannot be guaranteed that efficiently locate and balance, and It is frequently necessary to two workers while operating, time-consuming and laborious, working efficiency is not also high, simultaneously as manual operation, is drilling When depth is increasing, the power of drilling will also be changed correspondingly, and cause process velocity slower and slower, and when drilling, be touched accidentally When to reinforcing bar stone, it may occur that card machine situation damages worker's arm.
Summary of the invention
The object of the invention is that providing a kind of Full automatic penumatic water drilling and its user to solve the above-mentioned problems Method.
The present invention through the following technical solutions to achieve the above objectives:
A kind of Full automatic penumatic water drilling, including control cabinet, pedestal, monomer column, guide rail, the pedestal upper end setting is Control cabinet is stated, support column is arranged in the control cabinet side;
The guide rail is mounted on the support column side, and sliding block is arranged on the guide rail, and connection frame is mounted on the cunning Block side, water drilling are arranged in the connection frame upper end, and water drilling drill bit is mounted on the connection frame;
The sliding block rear end is provided with the monomer column, and positioning box is arranged in monomer column front end, the positioning Magnet is provided between box and the monomer column, position-sensing switch is mounted on the positioning box lower end, and graduation mark is arranged described On monomer column, attachment base setting is arranged on the downside of the attachment base in monomer column rear end, push-pull rod, the attachment base Be provided with connector between the push-pull rod, the push-pull rod lower end is provided with cylinder, two tracheaes settings in the cylinder and Between the control cabinet;
Control panel setting is arranged inside the control cabinet in the control cabinet side, air pump, and air supply pipe is arranged in institute Air pump upper end to be stated, triple valve is provided between the air supply pipe and two tracheaes, the pipe is provided with check valve, Controller is arranged on the upside of the air pump, the controller model FX3G.
Preferred: the check valve is threadingly attached to the tracheae, and the tracheae is threadingly attached to described three Port valve, the triple valve are threadingly attached to the air supply pipe, and the material of the air supply pipe is silicon rubber.
So set, the check valve plays control on-off action, the tracheae plays connection function, is connected through a screw thread guarantee Leakproofness.
Preferred: the air pump is bolted to the control cabinet, and the control cabinet is bolted to described Pedestal, the material of the pedestal are 316 stainless steels.
So set, the control cabinet shields, the pedestal plays carrying, and the company of ensure that is bolted Connect intensity.
Preferred: the push-pull rod is threadingly attached to the connector, and the nipple pin is connected to the attachment base, institute Attachment base is stated to connect by welding with the monomer column.
So set, the push-pull rod lifting effect, the connector plays connection function, and the attachment base plays connection and makees With, by welding ensure that bonding strength.
Preferred: the magnet is connected by glue in the positioning box, and the position-sensing switch is connected by glue in institute Positioning box is stated, the positioning box is connected to the monomer column by the magnet.
So set, the magnet plays connection function, the positioning box plays the role of positioning, and the position-sensing switch starts to control production With, be connected by glue conveniently.
Preferred: the graduation mark and the monomer column are integrally formed, and the monomer column is bolted to institute State sliding block.
So set, the graduation mark plays mark, the monomer column plays connection function, and the sliding block plays sliding and makees With being bolted and ensure that connective stability.
Preferred: the sliding block is slidably connected to the guide rail, and the guide rail is bolted to the support column.
So set, the guide rail plays position-limiting action, the support column plays a supportive role, and the company of ensure that is bolted Connect stability.
Preferred: the support column is by being welded to connect in the pedestal.
So set, the pedestal plays a supportive role, bonding strength ensure that by welding.
Preferred: the controller is connected to the water drilling, the control panel, the air pump, the list by conducting wire To valve, the triple valve, the position-sensing switch.
So set, the controller plays control and processing, each electric elements are connected to by conducting wire, ensure that The actual effect of information processing.
The present invention also provides a kind of application methods of Full automatic penumatic water drilling, are applied in above-mentioned Full automatic penumatic water drilling, Specific application method are as follows:
A, the pedestal is fixed on to the side for needing to drill, the suitable water drilling drill bit is selected to be mounted on the water drilling On, the water drilling is mounted on the connection frame, according to the depth of drilling, adjusts the position of the positioning box, it will be described fixed Position box is adsorbed on the suitable graduation mark position using the magnet.
B, equipment is opened using the control panel, can control the controller using the control panel, to control Make the revolving speed of the water drilling and the lifting speed of the push-pull rod, the cylinder.
C, the air pump starting, the triple valve control gas flow, open check valve described in upper end, the cylinder at this time Inner inflatable, the push-pull rod start to shrink, and the push-pull rod drives the monomer column decline, and the monomer column drives institute Sliding block is stated, the sliding block slides on the guide rail, and the sliding block drives the water drilling uniform descent, starts to drill.
D, after getting into suitable position, the position-sensing switch touches the guide rail, and the position-sensing switch is sent a signal to The controller, the controller control the water drilling power-off, while the controller controls the triple valve and described unidirectional Valve closes check valve described in upper end, opens check valve described in lower end, and the cylinder pushes up the push-pull rod, the water drilling Drill bit is detached from bore position, and after rising to proper height, equipment stops.
Compared with prior art, beneficial effects of the present invention are as follows:
1, structurally reasonable, using the cooperation of push-pull rod and cylinder, it ensure that power and speed that water drilling declines in drilling, protect Working efficiency is demonstrate,proved;
2, easy to operate, the step of controlling equipment automatic running using controller, reduce worker operation, simultaneously as gas The effect of cylinder, improves process velocity;
3, accurate positioning can accurately determine drilling depth using position-sensing switch and graduation mark, while be opened using positioning Pass can automatically reset at the end of drilling, improve safety.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.
Fig. 1 is a kind of first structure diagram of Full automatic penumatic water drilling of the present invention;
Fig. 2 is a kind of the second structural schematic diagram of Full automatic penumatic water drilling of the present invention;
Fig. 3 is a kind of positioning box structural schematic diagram of Full automatic penumatic water drilling of the present invention;
Fig. 4 is a kind of bottom positioning box schematic diagram of internal structure of Full automatic penumatic water drilling of the present invention;
Fig. 5 is a kind of control cabinet schematic diagram of internal structure of Full automatic penumatic water drilling of the present invention;
Fig. 6 is a kind of monomer pillar construction schematic diagram of Full automatic penumatic water drilling of the present invention;
Fig. 7 is a kind of circuit structure flow diagram of Full automatic penumatic water drilling of the present invention.
The reference numerals are as follows:
1, control cabinet;2, pedestal;3, monomer column;4, attachment base;5, push-pull rod;6, cylinder;7, tracheae;8, water drilling;9, Water drilling drill bit;10, connection frame;11, sliding block;12, guide rail;13, positioning box;14, graduation mark;15, support column;16, control panel; 17, air pump;18, check valve;19, triple valve;20, air supply pipe;21, controller;22, connector;23, position-sensing switch;24, magnet.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple " It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition Concrete meaning in the present invention.
The present invention will be further explained below with reference to the attached drawings:
Embodiment 1
As shown in Fig. 1-Fig. 7, a kind of Full automatic penumatic water drilling, including control cabinet 1, pedestal 2, monomer column 3, guide rail 12, 2 upper end of pedestal is provided with control cabinet 1, and support column 15 is arranged in 1 side of control cabinet;
Guide rail 12 is mounted on 15 side of support column, and sliding block 11 is arranged on guide rail 12, and connection frame 10 is mounted on sliding block 11 1 Side, water drilling 8 are arranged in 10 upper end of connection frame, and water drilling drill bit 9 is mounted on connection frame 10;
11 rear end of sliding block is provided with monomer column 3, and positioning box 13 is arranged in 3 front end of monomer column, positioning box 13 and monomer Magnet 24 is provided between column 3, position-sensing switch 23 is mounted on 13 lower end of positioning box, and graduation mark 14 is arranged on monomer column 3, The setting of attachment base 4 is arranged between attachment base 4 and push-pull rod 5 in 3 rear end of monomer column, the setting of push-pull rod 5 in 4 downside of attachment base There is connector 22,5 lower end of push-pull rod is provided with cylinder 6, and two tracheaes 7 are arranged between cylinder 6 and control cabinet 1;
The setting of control panel 16 is arranged inside control cabinet 1 in 1 side of control cabinet, air pump 17, and air supply pipe 20 is arranged in gas 17 upper ends are pumped, triple valve 19 is provided between air supply pipe 20 and two tracheaes 7, tracheae 7 is internally provided with check valve 18, controller 21 settings are in 17 upside of air pump.
The present invention also provides a kind of application methods of Full automatic penumatic water drilling, are applied in above-mentioned Full automatic penumatic water drilling, Specific application method are as follows:
A, pedestal 2 is fixed on to the side for needing to drill, selects suitable water drilling drill bit 9 to be mounted on water drilling 8, by water drilling 8 are mounted on connection frame 10, according to the depth of drilling, adjust the position of positioning box 13, positioning box 13 is adsorbed using magnet 24 In suitable 14 position of graduation mark.
B, equipment is opened using control panel 16, can control controller 21 using control panel 16, to control water drilling 8 Revolving speed and push-pull rod 5, cylinder 6 lifting speed.
C, air pump 17 starts at this time, the control gas flow of triple valve 19, opening upper end check valve 18,6 inner inflatable of cylinder, Push-pull rod 5 starts to shrink, and push-pull rod 5 drives monomer column 3 to decline, and monomer column 3 is with movable slider 11, and sliding block 11 is on guide rail 12 Sliding, sliding block 11 drive 8 uniform descent of water drilling, start to drill.
D, after getting into suitable position, position-sensing switch 23 touches guide rail 12, and position-sensing switch 23 sends a signal to controller 21, controller 21 controls water drilling 8 and powers off, while controller 21 controls triple valve 19 and check valve 18, closes upper end check valve 18, Lower end check valve 18 is opened, cylinder 6 pushes up push-pull rod 5, and water drilling drill bit 9 is detached from bore position, when rising to proper height Afterwards, equipment stops.
Check valve 18 is threadingly attached to tracheae 7, and tracheae 7 is threadingly attached to triple valve 19, and triple valve 19 passes through It is threadedly connected to air supply pipe 20, the material of air supply pipe 20 is silicon rubber, and check valve 18 plays control on-off action, and tracheae 7 plays connection Effect, is connected through a screw thread and ensure that leakproofness;Air pump 17 is bolted to control cabinet 1, and control cabinet 1 is bolted It is 316 stainless steels in the material of pedestal 2, pedestal 2, air pump 17 plays function, and control cabinet 1 shields, and pedestal 2 plays carrying Effect, is bolted and ensure that bonding strength;Push-pull rod 5 is threadingly attached to connector 22, and 22 pin connection of connector is in even Joint chair 4, attachment base 4 are connected by welding and monomer column 3, and 5 lifting of push-pull rod effect, connector 22 plays connection function, are connected 4 connection functions of seat ensure that bonding strength by welding;Magnet 24 is connected by glue in positioning box 13, position-sensing switch 23 It is connected by glue in positioning box 13, positioning box 13 is connected to monomer column 3 by magnet 24, and magnet 24 plays connection function, fixed Position box 13 plays the role of positioning, and position-sensing switch 23 plays control action, is connected by glue conveniently;Graduation mark 14 and monomer column 3 one Body formed, monomer column 3 is bolted to sliding block 11, and graduation mark 14 plays mark, and monomer column 3 plays connection function, Sliding block 11 plays sliding, is bolted and ensure that connective stability;Sliding block 11 is slidably connected to guide rail 12, and guide rail 12 is logical It crosses and is bolted in support column 15, guide rail 12 plays position-limiting action, and support column 15 plays a supportive role, and the company of ensure that is bolted Connect stability;By being welded to connect in pedestal 2, pedestal 2 plays a supportive role support column 15, ensure that bonding strength by welding; Controller 21 is connected to water drilling 8, control panel 16, air pump 17, check valve 18, triple valve 19, position-sensing switch 23 by conducting wire, control Device 21 processed plays control and processing, is connected to each electric elements by conducting wire, ensure that the actual effect of information processing.More than The basic principles, principal features and advantages of the present invention have been shown and described.It should be understood by those skilled in the art that the present invention is not It is restricted to the described embodiments, the above embodiments and description only illustrate the principle of the present invention, is not departing from this Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect In the scope of the invention of shield.

Claims (10)

1. a kind of Full automatic penumatic water drilling, it is characterised in that: including control cabinet (1), pedestal (2), monomer column (3), guide rail (12), pedestal (2) upper end is provided with the control cabinet (1), and support column (15) is arranged in the control cabinet (1) side;
The guide rail (12) is mounted on the support column (15) side, and sliding block (11) is arranged on the guide rail (12), connection frame (10) it is mounted on the sliding block (11) side, water drilling (8) is arranged in the connection frame (10) upper end, and water drilling drill bit (9) is mounted on On the connection frame (10);
Sliding block (11) rear end is provided with the monomer column (3), and positioning box (13) is arranged before the monomer column (3) End, is provided with magnet (24), it is described fixed that position-sensing switch (23) is mounted between the positioning box (13) and the monomer column (3) Position box (13) lower end, graduation mark (14) are arranged on the monomer column (3), and attachment base (4) is arranged in the monomer column (3) Rear end, push-pull rod (5) setting are provided between the attachment base (4) and the push-pull rod (5) on the downside of the attachment base (4) Connector (22), push-pull rod (5) lower end are provided with cylinder (6), and two tracheaes (7) are arranged in the cylinder (6) and the control Between case (1) processed;
Control panel (16) setting is in the control cabinet (1) side, and air pump (17) setting is internal in the control cabinet (1), gas supply Pipe (20) setting is provided with triple valve between the air pump (17) upper end, the air supply pipe (20) and two tracheaes (7) (19), the tracheae (7) is internally provided with check valve (18), and controller (21) setting is on the upside of the air pump (17).
2. a kind of Full automatic penumatic water drilling according to claim 1, it is characterised in that: the check valve (18) passes through screw thread It is connected to the tracheae (7), the tracheae (7) is threadingly attached to the triple valve (19), and the triple valve (19) passes through It is threadedly connected to the air supply pipe (20), the material of the air supply pipe (20) is silicon rubber.
3. a kind of Full automatic penumatic water drilling according to claim 2, it is characterised in that: the air pump (17) is connected by bolt It is connected to the control cabinet (1), the control cabinet (1) is bolted to the pedestal (2), and the material of the pedestal (2) is 316 stainless steels.
4. a kind of Full automatic penumatic water drilling according to claim 3, it is characterised in that: the push-pull rod (5) passes through screw thread Be connected to the connector (22), connector (22) pin connection in the attachment base (4), the attachment base (4) by welding and Monomer column (3) connection.
5. a kind of Full automatic penumatic water drilling according to claim 4, it is characterised in that: the magnet (24) is connected by gluing It is connected to the positioning box (13), the position-sensing switch (23) is connected by glue in the positioning box (13), the positioning box (13) the monomer column (3) is connected to by the magnet (24).
6. a kind of Full automatic penumatic water drilling according to claim 5, it is characterised in that: the graduation mark (14) and the list Body column (3) is integrally formed, and the monomer column (3) is bolted to the sliding block (11).
7. a kind of Full automatic penumatic water drilling according to claim 6, it is characterised in that: the sliding block (11) is slidably connected to The guide rail (12), the guide rail (12) are bolted to the support column (15).
8. a kind of Full automatic penumatic water drilling according to claim 7, it is characterised in that: the support column (15) passes through welding It is connected to the pedestal (2).
9. a kind of Full automatic penumatic water drilling according to claim 8, it is characterised in that: the controller (21) passes through conducting wire It is connected to the water drilling (8), the control panel (16), the air pump (17), the check valve (18), the triple valve (19), the position-sensing switch (23).
10. it is any to be applied to claim 1 to 9 for a kind of application method of Full automatic penumatic water drilling according to claim 9 In Full automatic penumatic water drilling described in one, it is characterised in that: specifically a kind of application method of Full automatic penumatic water drilling includes Following steps:
A, the pedestal (2) is fixed on to the side for needing to drill, the suitable water drilling drill bit (9) is selected to be mounted on the water It bores on (8), the water drilling (8) is mounted on the connection frame (10), according to the depth of drilling, adjusts the positioning box (13) Position, the positioning box (13) are adsorbed on suitable graduation mark (14) position using the magnet (24).
B, equipment is opened using the control panel (16), can control the controller using the control panel (16) (21), to control the revolving speed of the water drilling (8) and the lifting speed of the push-pull rod (5), the cylinder (6).
C, air pump (17) starting, the triple valve (19) control gas flow, open check valve (18) described in upper end at this time, Cylinder (6) inner inflatable, the push-pull rod (5) start to shrink, and the push-pull rod (5) drives under the monomer column (3) Drop, the monomer column (3) drive the sliding block (11), and the sliding block (11) is slided on the guide rail (12), the sliding block (11) water drilling (8) uniform descent is driven, starts to drill.
D, after getting into suitable position, the position-sensing switch (23) is touched the guide rail (12), position-sensing switch (23) hair The number of delivering letters gives the controller (21), and the controller (21) controls water drilling (8) power-off, while the controller (21) is controlled The triple valve (19) and the check valve (18) are made, check valve (18) described in upper end is closed, opens check valve described in lower end (18), the cylinder (6) pushes up the push-pull rod (5), and the water drilling drill bit (9) is detached from bore position, closes when rising to After suitable height, equipment stops.
CN201910169665.8A 2019-03-06 2019-03-06 A kind of Full automatic penumatic water drilling and its application method Pending CN109702904A (en)

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Application Number Priority Date Filing Date Title
CN201910169665.8A CN109702904A (en) 2019-03-06 2019-03-06 A kind of Full automatic penumatic water drilling and its application method

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Application Number Priority Date Filing Date Title
CN201910169665.8A CN109702904A (en) 2019-03-06 2019-03-06 A kind of Full automatic penumatic water drilling and its application method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115056362A (en) * 2022-07-05 2022-09-16 永康市灵威电器有限公司 Electric tool accessory and lithium electric tool

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Publication number Priority date Publication date Assignee Title
JPH10193332A (en) * 1997-02-10 1998-07-28 Ebara Corp Water jet boring device
CN101947818A (en) * 2010-05-11 2011-01-19 缪静安 Manipulator device for producing rhinestones
JP2014014955A (en) * 2012-07-06 2014-01-30 Tokyo Metro Co Ltd High pressure water hole drilling device
CN204819149U (en) * 2015-07-13 2015-12-02 金华冠华水晶有限公司 Water drill point utensil balancing unit
CN205343470U (en) * 2016-02-24 2016-06-29 刘善考 Water bores autofeed intelligence control system that punches
CN205614855U (en) * 2016-05-18 2016-10-05 大同新成新材料股份有限公司 Drilling equipment of graphite product sample
CN209775183U (en) * 2019-03-06 2019-12-13 天津芸信机械设备制造有限公司 Full-automatic pneumatic water drill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10193332A (en) * 1997-02-10 1998-07-28 Ebara Corp Water jet boring device
CN101947818A (en) * 2010-05-11 2011-01-19 缪静安 Manipulator device for producing rhinestones
JP2014014955A (en) * 2012-07-06 2014-01-30 Tokyo Metro Co Ltd High pressure water hole drilling device
CN204819149U (en) * 2015-07-13 2015-12-02 金华冠华水晶有限公司 Water drill point utensil balancing unit
CN205343470U (en) * 2016-02-24 2016-06-29 刘善考 Water bores autofeed intelligence control system that punches
CN205614855U (en) * 2016-05-18 2016-10-05 大同新成新材料股份有限公司 Drilling equipment of graphite product sample
CN209775183U (en) * 2019-03-06 2019-12-13 天津芸信机械设备制造有限公司 Full-automatic pneumatic water drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115056362A (en) * 2022-07-05 2022-09-16 永康市灵威电器有限公司 Electric tool accessory and lithium electric tool

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Address before: 301718 zhengziwu village, shigezhuang, Wuqing District, Tianjin

Applicant before: TIANJIN YUNXIN MACHINERY EQUIPMENT MANUFACTURING Co.,Ltd.

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