CN107931665A - A kind of method of work of tapping machine - Google Patents
A kind of method of work of tapping machine Download PDFInfo
- Publication number
- CN107931665A CN107931665A CN201711143978.3A CN201711143978A CN107931665A CN 107931665 A CN107931665 A CN 107931665A CN 201711143978 A CN201711143978 A CN 201711143978A CN 107931665 A CN107931665 A CN 107931665A
- Authority
- CN
- China
- Prior art keywords
- tapping machine
- work
- cutter
- perforating cutter
- ammeter
- Prior art date
- 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
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention provides a kind of method of work of tapping machine, including：Step 1: mounting opening machine, wherein, the circuit that tapping machine is connected with power supply is equipped with ammeter；Step 2: starting tapping machine, the perforating cutter of tapping machine is set to stop electronic feed when touching pipe surface using electronic feed mode, also, tapping machine idle electric current value is recorded by ammeter；Step 3: using manual mode adjust tapping machine feed arrangement, also, observe at the same time ammeter current value show tapping machine stable conditions when stop adjust feed arrangement；Step 4: perforating cutter non-resistance when adjusting feed arrangement of repeat step three, also, observe that ammeter shows tapping machine idle electric current value at the same time, adjust feed arrangement using manual mode retracts initial position by perforating cutter.It is able to ensure that the operating mode of tapping machine cutting is continual and steady, remains optimum state, so that steel pipe perforate construction is smoothly and efficient.
Description
Technical field
The invention belongs to the steel pipe jag joint technology field in water system, and in particular to a kind of work side of tapping machine
Method.
Background technology
Steel pipe can be all run into many water supply line constructions as a kind of common and universal pipe material for water supply, and
It is especially common that the construction that small-caliber steel pipe jag is plugged into is carried out on built water supply line.To make steel pipe perforate construction smoothly and high
Effect, the method for work of tapping machine play the effect of key in the construction process.
The content of the invention
The technical problem to be solved in the present invention is overcoming the deficiencies of the prior art and provide a kind of method of work of tapping machine,
Tapping machine cutting can be made to be in steady working condition all the time, so that steel pipe perforate construction is smoothly and efficient.
In order to solve the above technical problems, technical solution proposed by the present invention is：A kind of method of work of tapping machine, including：
Step 1: mounting opening machine, wherein, the circuit that tapping machine is connected with power supply is equipped with ammeter；Step 2: start tapping machine,
The perforating cutter of tapping machine is stopped electronic feed when touching pipe surface using electronic feed mode, also, pass through electric current
Token record tapping machine idle electric current value；Step 3: adjusting the feed arrangement of tapping machine using manual mode, also, observe at the same time
The current value of ammeter stops adjusting feed arrangement when showing tapping machine stable conditions；Step 4: repeat step three is until adjusting
Perforating cutter non-resistance during feed arrangement, also, observe that ammeter shows tapping machine idle electric current value at the same time, using manual side
Formula adjusts feed arrangement and perforating cutter is retracted initial position.
Tapping machine method of work according to the present invention, since motor of the tapping machine with choosing is rated power, boring cutter
The rotating speed of tool can not be adjusted by motor, installed an ammeter additional between tapping machine and power supply, can be passed through sight
Examine the adjusting that the real-time current value on ammeter carries out the cutter head amount of feeding using the operation automatically and manually combined, it can be ensured that
The operating mode of tapping machine cutting is continual and steady, remains optimum state, so that steel pipe perforate construction is smoothly and efficient.
For above-mentioned technical proposal, the further improvement that can be also discussed below.
The method of work of tapping machine according to the present invention, in one preferred embodiment, in above-mentioned steps one, perforate
Machine is installed on plate valve, and plate valve is connected with the three-way pipeline being arranged on pipeline.Above-mentioned steps two are into step 4, perforating cutter
In the course of work, plate valve is opened, and when perforating cutter completes pipe cutting, and plate valve is exited in perforating cutter end, plate valve is stood
Close.Coordinated by assembling plate valve and tapping machine, the perforate that can not be cut off the water construction, so as to reduce the construction time and
The influence cut off the water to user is avoided, and improves the flexibility of construction.
The method of work of tapping machine according to the present invention, further, in one preferred embodiment, tapping machine bag
Perforating cutter can be carried out the drainage arrangement of cooling treatment by including, and drainage arrangement is arranged in the periphery of perforating cutter.Specifically, exist
In one preferred embodiment, drainage arrangement includes being arranged in the sealing device of perforating cutter periphery and is arranged in sealing device
The drainage pipeline of both sides.Specifically, in one preferred embodiment, in above-mentioned steps two into step 4, in boring cutter
Tool starts to be cut to during pipeline joint-cutting has water spilling, and cooling treatment is carried out to perforating cutter using drainage arrangement.Due to
For perforating cutter when cutting tube wall, frictional force produces huge heat, and excessive temperature causes perforating cutter damage and shadow
Ring the operating mode of tapping machine., can be cold by being injected to drainage arrangement during cutting starts to tube wall joint-cutting to have water spilling
Water carries out cooling treatment to perforating cutter, so it is avoided that perforating cutter is damaged because of temperature overheating.Cut when being cut to tube wall
When being sewed with water spilling, stop water filling at once, drainage arrangement carries out draining.The cold water of cooling can be from sealing device wherein side
Drainage pipeline injection, flowed out from the drainage pipeline of opposite side, so as to reach the effect of cooling perforating cutter.When drainage arrangement into
During row draining, the water overflowed from tube wall joint-cutting can be flowed out from the drainage pipeline of both sides, and drainage efficiency is high.
The method of work of tapping machine according to the present invention, in one preferred embodiment, perforating cutter includes flat mouth
Cutter head.Using the structure of flat mouth cutter head, in cutting process, avoid in the prior art due to the big caused appearance of disk tooth frictional force
Easily there is the situation of serrated knife abrasion, deformation or even fracture, also, due to eliminating the drill bit on turntable central axes, effectively avoid
Tapping machine stuck situation, so as to bring convenient to construction and avoid potential insecurity.Further, at one
In preferred embodiment, flat mouth cutter head is made of alloy material.Cutter head is made using alloy material, cutter can be effectively increased
Service life.Further, in one preferred embodiment, flat blade head structure is hollow cylindrical structure.Using
The cutter head of hollow cylindrical structure, on the one hand can improve the cutting efficiency of tapping machine, on the other hand, tapping machine can be facilitated complete
Cut-out is taken out of after into cutting.
In one preferred embodiment, tapping machine includes the attachment device for installing.Further, it is excellent at one
In the embodiment of choosing, attachment device includes ring flange, and ring flange is arranged in the bottom of tapping machine, and ring flange is equipped with the
One sealing device.The attachment devices such as the ring flange by being arranged on perforate motor spindle, can cause tapping machine in the construction process
Install convenient, stablize it is firm.
Compared with prior art, the advantage of the invention is that：It may insure that the operating mode of tapping machine cutting is continual and steady, all the time
Optimum state is kept, so that steel pipe perforate construction is smoothly and efficient.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 schematically illustrates the installment state of tapping machine 100 in the embodiment of the present invention；
Fig. 2 schematically illustrates 6 installment state of plate valve in the embodiment of the present invention；
Fig. 3 schematically illustrates 100 working status of tapping machine in step 2 of the embodiment of the present invention；
Fig. 4 schematically illustrates 100 working status of tapping machine in step 3 of the embodiment of the present invention；
Fig. 5 schematically illustrates a kind of working status of tapping machine 100 in step 4 of the embodiment of the present invention；
Fig. 6 schematically illustrates another working status of tapping machine 100 in step 4 of the embodiment of the present invention；
Fig. 7 schematically illustrates tapping machine 100 in the embodiment of the present invention and completes the working status after cutting.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.
Embodiment
Make further detailed description to the present invention below in conjunction with the drawings and specific embodiments, but therefore do not limit this
The protection domain of invention.
Fig. 1 schematically illustrates the installment state of tapping machine 100 in the embodiment of the present invention；Fig. 2 schematically illustrates this hair
6 installment state of plate valve in bright embodiment；Fig. 3 schematically illustrates 100 working status of tapping machine in step 2 of the embodiment of the present invention；
Fig. 4 schematically illustrates 100 working status of tapping machine in step 3 of the embodiment of the present invention；Fig. 5 schematically illustrates of the invention real
Apply a kind of working status of tapping machine 100 in a step 4；Fig. 6 schematically illustrates tapping machine in step 4 of the embodiment of the present invention
100 another working status；Fig. 7 schematically illustrates tapping machine 100 in the embodiment of the present invention and completes the work shape after cutting
State.As shown in Figures 1 to 7, the method for work of tapping machine of the embodiment of the present invention 100, including：Step 1: mounting opening machine 100,
Wherein, the circuit that tapping machine 100 is connected with power supply 2 is equipped with ammeter 3；Step 2: start tapping machine 100, using it is electronic into
Knife mode stops electronic feed when the perforating cutter 1 of tapping machine 100 is touched 8 surface of pipeline, also, is remembered by ammeter 3
Record 100 idle electric current value of tapping machine；Step 3: adjusting the feed arrangement 4 of tapping machine 100 using manual mode, also, see at the same time
Stop adjusting feed arrangement 4 during current value display 100 stable conditions of tapping machine for examining ammeter 3；Step 4: repeat step three is straight
To 1 non-resistance of perforating cutter when adjusting feed arrangement 4, also, observe that ammeter 3 shows 100 idle electric current of tapping machine at the same time
Value, adjusts feed arrangement 4 using manual mode and perforating cutter 1 is retracted initial position.Specifically, in a preferable embodiment party
In formula, the current value that tapping machine 100 dallies is 8A, and current value during 100 stable conditions of tapping machine is 15A.The embodiment of the present invention
Tapping machine method of work, due to tapping machine with choosing motor be rated power, the rotating speed of perforating cutter can not pass through
Motor is adjusted, and installs an ammeter additional between tapping machine and power supply, can be by observing the real-time electricity on ammeter
Flow valuve carries out the adjusting of the cutter head amount of feeding using the operation automatically and manually combined, it can be ensured that the operating mode of tapping machine cutting is held
Continue and stablize, remain optimum state, so that steel pipe perforate construction is smoothly and efficient.The tapping machine 100 of the embodiment of the present invention
Method of work, in one preferred embodiment, perforating cutter 1 includes flat mouth cutter head.Using the structure of flat mouth cutter head,
In cutting process, avoid and serrated knife abrasion easily occur since disk tooth frictional force is caused greatly in the prior art, deform and even break
Situation about splitting, also, due to eliminating the drill bit on turntable central axes, the stuck situation of tapping machine is effectively prevent, so as to give
Construction brings conveniently and avoids potential insecurity.Further, in one preferred embodiment, flat mouth cutter head
It is made of alloy material.Cutter head is made using alloy material, cutting-tool's used life can be effectively increased.Further, one
In a preferred embodiment, flat blade head structure is hollow cylindrical structure.Using the cutter head of hollow cylindrical structure, a side
Face can improve the cutting efficiency of tapping machine, on the other hand, tapping machine can be facilitated to take cut-out out of after completing cutting.
In one preferred embodiment, tapping machine 100 includes the attachment device 5 for installing.Further, it is preferable real at one
Apply in mode, attachment device 5 includes ring flange 51, and ring flange is arranged in the bottom of tapping machine 100, and ring flange 51 is equipped with
First sealing device.The attachment devices such as the ring flange 51 by being arranged on perforate motor spindle, can cause tapping machine 100 constructing
During install convenient, stablize it is firm.
The method of work of the tapping machine 100 of the embodiment of the present invention, in one preferred embodiment, above-mentioned steps one
In, tapping machine 100 is installed on plate valve 6, and plate valve 6 is connected with the three-way pipeline 8 being arranged on pipeline 7.Above-mentioned steps two are to step
In rapid four, in 10 course of work of perforating cutter, plate valve 6 is opened, and is completed pipeline 7 when perforating cutter 10 and is cut, and perforating cutter
When plate valve 6 is exited in 10 ends, plate valve 6 is closed immediately.Coordinated by assembling plate valve and tapping machine, the perforate that can not be cut off the water is applied
Work, so as to reduce the construction time and avoid the influence cut off the water to user, and improves the flexibility of construction.Specifically, exist
In one preferable aforesaid way, the second sealing device 61 is equipped between the ring flange set on plate valve 6 and three-way pipeline 8, is made
Plate valve install convenient, reliable and stable.It is after plate valve 6 is installed, flashboard is fully open, and ensure that valve cavity is accessible
Thing.Specifically, after plate valve completely closes, the drainpipe of 91 both sides of sealing device of observation tapping machine 100 920 five minutes, such as
Fruit does not have water discharge, represents that 6 leakproofness of plate valve is intact, then dismantles tapping machine 100, take out the tube wall of cut portion, completes not
Cut off the water the construction of perforate.
The method of work of the tapping machine 100 of the embodiment of the present invention, further, in one preferred embodiment, is opened
Hole machine 100 includes the drainage arrangement 9 that cooling treatment can be carried out to perforating cutter 10, and drainage arrangement 9 is arranged in perforating cutter 10
Periphery.Specifically, in one preferred embodiment, drainage arrangement 9 includes being arranged in the sealing of 10 periphery of perforating cutter
Device 91 and the drainage pipeline 92 for being arranged in 91 both sides of sealing device.Specifically, in one preferred embodiment, above-mentioned
Step 2 further includes the cooling treatment to perforating cutter 10 into step 4, starts to be cut to 7 joint-cutting of pipeline in perforating cutter 10
During having water spilling, cooling treatment is carried out to perforating cutter 10 using drainage arrangement 9.Since perforating cutter is in cutting tube wall
When, frictional force produces huge heat, and excessive temperature causes to damage and influences the operating mode of tapping machine on perforating cutter.Cutting
Cut open during beginning to have water spilling to tube wall joint-cutting, perforating cutter can be cooled down by injecting cold water to drainage arrangement
Processing, so it is avoided that perforating cutter is damaged because of temperature overheating.When being cut to tube wall joint-cutting and having water spilling, stop at once
Water filling, drainage arrangement carry out draining.The cold water of cooling can be injected from the drainage pipeline 92 of the wherein side of sealing device 91, from
The drainage pipeline 92 of opposite side flows out, so as to reach the effect of cooling perforating cutter.When drainage arrangement 9 carries out draining, from pipe
The water that wall joint-cutting overflows can be flowed out from the drainage pipeline 92 of both sides, and drainage efficiency is high.
According to above-described embodiment, it is seen then that the method for work of tapping machine according to the present invention, it can be ensured that tapping machine cutting
Operating mode is continual and steady, remains optimum state, so that steel pipe perforate construction is smoothly and efficient.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the invention
Under, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, to be rushed as long as there is no structure
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical solutions including falling within the scope of the claims.
Claims (10)
- A kind of 1. method of work of tapping machine, it is characterised in that including：Step 1: the tapping machine is installed, wherein, the circuit that the tapping machine is connected with power supply is equipped with ammeter；Step 2: starting the tapping machine, the perforating cutter of the tapping machine is set to touch pipeline table using electronic feed mode Stop electronic feed during face, also, the tapping machine idle electric current value is recorded by the ammeter；Step 3: adjusting the feed arrangement of the tapping machine using manual mode, also, the electric current of the ammeter is observed at the same time Value stops adjusting the feed arrangement when showing the tapping machine stable conditions；Step 4: perforating cutter non-resistance when adjusting the feed arrangement of repeating said steps three, also, see at the same time Observe the ammeter and show the tapping machine idle electric current value, the feed arrangement is adjusted by the perforate using manual mode Cutter retracts initial position.
- 2. the method for work of tapping machine according to claim 1, it is characterised in that in the step 1, the tapping machine On plate valve, the plate valve is connected with the three-way pipeline being arranged on pipeline；The step 2 is into the step 4, institute State in the perforating cutter course of work, the plate valve is opened, when the perforating cutter completes pipe cutting, and the perforating cutter When the plate valve is exited in end, the plate valve is closed immediately.
- 3. the method for work of tapping machine according to claim 1 or 2, it is characterised in that the tapping machine includes can be right The perforating cutter carries out the drainage arrangement of cooling treatment, and the drainage arrangement is arranged in the periphery of the perforating cutter.
- 4. the method for work of tapping machine according to claim 3, it is characterised in that the drainage arrangement includes being arranged in institute State the sealing device of perforating cutter periphery and the drainage pipeline for being arranged in the sealing device both sides.
- 5. the method for work of the tapping machine according to claim 3 or 4, it is characterised in that in the step 2 to the step In rapid four, start to be cut to during pipeline joint-cutting has water spilling in perforating cutter, using the drainage arrangement to boring cutter Tool carries out cooling treatment.
- 6. the method for work of tapping machine according to any one of claim 1 to 5, it is characterised in that the perforating cutter Including flat mouth cutter head.
- 7. the method for work of tapping machine according to claim 6, it is characterised in that the flat mouth cutter head is by alloy material system Into.
- 8. the method for work of the tapping machine according to claim 6 or 7, it is characterised in that during the flat blade head structure is Hollow-cylindrical structure.
- 9. the method for work of tapping machine according to any one of claim 1 to 8, it is characterised in that the tapping machine bag Include the attachment device for installation.
- 10. the method for work of tapping machine according to claim 9, it is characterised in that the attachment device includes ring flange, The ring flange is arranged in the bottom of the tapping machine, and the ring flange is equipped with first sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143978.3A CN107931665A (en) | 2017-11-17 | 2017-11-17 | A kind of method of work of tapping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143978.3A CN107931665A (en) | 2017-11-17 | 2017-11-17 | A kind of method of work of tapping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931665A true CN107931665A (en) | 2018-04-20 |
Family
ID=61932703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711143978.3A Pending CN107931665A (en) | 2017-11-17 | 2017-11-17 | A kind of method of work of tapping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931665A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045808U (en) * | 1988-12-23 | 1989-10-11 | 上海市煤气公司管线工程所 | Automatic piercing machine for enclosed pipe |
| CN2233802Y (en) * | 1995-07-06 | 1996-08-28 | 于忠 | Hole drilling machine for pipe line |
| CN2246034Y (en) * | 1995-11-02 | 1997-01-29 | 王世嘉 | Hole poring machine |
| CN2465028Y (en) * | 2001-02-20 | 2001-12-12 | 上海奕达燃气设备有限公司 | Polyvinyl gas pipe blocking device |
| CN2475495Y (en) * | 2001-05-21 | 2002-02-06 | 李盛海 | Sealed drilling tapping machine with manual energy filing removal |
| JP2002066819A (en) * | 2000-08-31 | 2002-03-05 | Nitto Kohki Co Ltd | Drilling machine |
| CN2493337Y (en) * | 2001-06-20 | 2002-05-29 | 李盛海 | Hydraulic drilling machine |
| CN2820393Y (en) * | 2005-10-28 | 2006-09-27 | 邯郸钢铁集团有限责任公司 | Hole drilling device for pipeline with pressure |
| CN104653929A (en) * | 2015-02-04 | 2015-05-27 | 天津二十冶建设有限公司 | Tool used for connecting pipelines under pressure and use method |
| CN105005266A (en) * | 2015-05-29 | 2015-10-28 | 华中科技大学 | Method for quickly identifying collision of milling cutter based on current of motor |
| CN205571481U (en) * | 2016-01-04 | 2016-09-14 | 上海生特瑞建设有限公司 | Trompil device is pressed in semiconductor mill pipeline area |
-
2017
- 2017-11-17 CN CN201711143978.3A patent/CN107931665A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045808U (en) * | 1988-12-23 | 1989-10-11 | 上海市煤气公司管线工程所 | Automatic piercing machine for enclosed pipe |
| CN2233802Y (en) * | 1995-07-06 | 1996-08-28 | 于忠 | Hole drilling machine for pipe line |
| CN2246034Y (en) * | 1995-11-02 | 1997-01-29 | 王世嘉 | Hole poring machine |
| JP2002066819A (en) * | 2000-08-31 | 2002-03-05 | Nitto Kohki Co Ltd | Drilling machine |
| CN2465028Y (en) * | 2001-02-20 | 2001-12-12 | 上海奕达燃气设备有限公司 | Polyvinyl gas pipe blocking device |
| CN2475495Y (en) * | 2001-05-21 | 2002-02-06 | 李盛海 | Sealed drilling tapping machine with manual energy filing removal |
| CN2493337Y (en) * | 2001-06-20 | 2002-05-29 | 李盛海 | Hydraulic drilling machine |
| CN2820393Y (en) * | 2005-10-28 | 2006-09-27 | 邯郸钢铁集团有限责任公司 | Hole drilling device for pipeline with pressure |
| CN104653929A (en) * | 2015-02-04 | 2015-05-27 | 天津二十冶建设有限公司 | Tool used for connecting pipelines under pressure and use method |
| CN105005266A (en) * | 2015-05-29 | 2015-10-28 | 华中科技大学 | Method for quickly identifying collision of milling cutter based on current of motor |
| CN205571481U (en) * | 2016-01-04 | 2016-09-14 | 上海生特瑞建设有限公司 | Trompil device is pressed in semiconductor mill pipeline area |
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Application publication date: 20180420 |
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