CN106827253B - A kind of automatic punch and boring method - Google Patents
A kind of automatic punch and boring method Download PDFInfo
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- CN106827253B CN106827253B CN201611234634.9A CN201611234634A CN106827253B CN 106827253 B CN106827253 B CN 106827253B CN 201611234634 A CN201611234634 A CN 201611234634A CN 106827253 B CN106827253 B CN 106827253B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000004080 punching Methods 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 230000001681 protective effect Effects 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000007920 subcutaneous administration Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/005—Devices for the automatic drive or the program control of the machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
Abstract
The present invention provides a kind of automatic punch and boring method, the puncher includes air drill (6), cylinder (3), fixture and automatic control system, and the head of the air drill (6) is equipped with drill bit (7)；The air drill (6) is for driving the drill bit (7) to rotate；The cylinder (3) is for pushing the air drill to move horizontally；The fixture is for clamping hole workpiece to be drilled；The automatic control system includes drill bit feed speed detection unit, drilling depth detection unit, controller and gas transmission control unit；The feed speed detection unit is used to acquire the feed speed information of the drill bit；The drilling depth detection unit is used to acquire the drilling depth information of the drill bit；The controller controls the air mass flow of the gas transmission control unit input cylinder (3) according to the feed speed and drilling depth information.The present invention can improve accuracy and the precision of core punching, improve the gas permeability of core, improve production efficiency.
Description
Technical field
The present invention relates to casting field more particularly to a kind of automatic punches and boring method of overlay film sand core.
Background technology
It is related to all trades and professions in the application of casting industry, casting part, it is very broad using popularity, with to work
The requirement of industry is higher and higher, and product quality determines it in the industry whether basing oneself upon, concerning the key of Business survival, so casting
Part part emphasizes its quality very much in producing smelting process, and defective casting part, which can only be done, scraps processing.
The automobile and equipment of superior function depend on each position casting part, but casting part is used in production
Various cores determine the product quality of casting part, and it is all by covering to produce core raw material used in casting part
Film sand is made by mold high temperature, and during the moulding by casting of casting part, core is contacted with the iron liquid of high temperature and can be produced
Raw certain gas, there are many type of stomata, and gas contracting, gas suppress, reactive stomata, needle stomata, subcutaneous blowhole etc..Especially technique
Relative complex casting part, due to the thick big or uncured precoated sand of core, if core is beaten without rational design
Hole, then cause caused by gas can dialyse either puncture high temperature iron liquid or rest on casting piece surface or it is subcutaneous or
Person is gathered in the thicker position of wall thickness of casting part or is suppressed in highest point or iron liquid most end the end position generation of casting part
Gas or the iron liquid inlet generation gas contracting in casting part or the position production perfect and unreasonable not to the utmost in technological design
Raw intensity stomata, to influence the quality of casting part.Also, existing hole knockout is easy to cause the impaired even report of core
Useless, drilling precision and depth are not easy to control.
Therefore, it is necessary to provide a kind of new technical solution.
Invention content
It, can in order to overcome the defect of the above-mentioned prior art, a kind of automatic punch of present invention offer and boring method
The accuracy and precision for improving core punching improve the gas permeability of core in casting part production process, and it is useless to reduce product
Rate improves production efficiency.
To achieve the above object, the present invention provides a kind of automatic punch, and the puncher includes air drill, cylinder, fixture
And automatic control system, the head of the air drill are equipped with drill bit；
The air drill is for driving the drill bit to rotate；
The cylinder is for pushing the air drill to move horizontally；
The fixture is for clamping hole workpiece to be drilled；
The automatic control system includes drill bit feed speed detection unit, drilling depth detection unit, controller and defeated
Gas control unit；
The feed speed detection unit is used to acquire the feed speed information of the drill bit；
The drilling depth detection unit is used to acquire the drilling depth information of the drill bit；
The controller controls the gas transmission control unit according to the feed speed and drilling depth information and inputs cylinder
Air mass flow.
Further, the controller controls the gas transmission according to the feed speed and drilling depth of the drill bit and controls list
The air mass flow of member input cylinder, specifically includes：
The controller judges the resistance that drill bit is subject in drilling according to the feed speed of the drill bit, and according to resistance
The air mass flow of gas transmission control unit input cylinder described in big minor adjustment；
When the resistance that the drill bit is subject to more than the first default resistance and less than the second default resistance when, make the drill bit with
First Speed does feed motion；
When the resistance that the drill bit is subject to more than the second default resistance and less than third preset resistance when, make the drill bit with
Second speed does feed motion；
When the resistance of the drill bit be more than third preset resistance when, make the drill bit with third speed do backhaul, feed it is past
Multiple movement；
When the drill bit fathom reach predetermined depth when, the controller, which controls the gas transmission control unit, to be stopped
Input the air of cylinder；
Wherein, the First Speed is more than the second speed, and the second speed is greater than or equal to the third speed.
Further, the initial velocity when First Speed contacts for drill bit with workpiece surface hole to be drilled, described first
Default resistance is initial resistance when drill bit is contacted with workpiece surface hole to be drilled.
Further, the automatic control system further includes drill speed detection unit,
The drill speed detection unit is for detecting the drill speed information；
The controller controls the gas transmission control unit according to drill speed information and default drill speed information and inputs
The air mass flow of air drill.
Further, the distance of travel settings≤300mm of the cylinder, the drill bit backhaul are 2-5cm, into air drill
Total gas pressure be 0.3-0.5MP.
Further, the controller is PLC controller.
Further, the gas transmission control unit is air valve, and the air valve includes the first air valve and the second air valve；
The puncher further includes air drill air inlet pipe and cylinder air inlet pipe；
Air drill air inlet pipe one end is connected with the first air valve, and the other end is connect with the air inlet of the air drill；
Cylinder intake pipe one end is connected with the second air valve, and the other end is connect with the air inlet of the cylinder.
Further, the puncher further includes holder, lifting gear and carriage；
The lifting gear is fixed on the holder, is used for the height of up and down adjustment carriage；
The carriage is fixed on the lifting gear, and the carriage includes sliding rail pedestal and sliding rail；
The air drill is fixed on the sliding rail, and the sliding rail is slidably set on the sliding rail pedestal；
The cylinder is fixed on the sliding rail pedestal, and piston rod, one end of the piston rod are provided in the cylinder
It is fixedly connected with the sliding rail.
Further, the fixture is fixed in mobile device；
The controller drives the mobile device horizontal movement, makes in the punching center face drill bit of hole workpiece to be drilled
The heart.
The present invention also provides a kind of boring method using above-mentioned automatic punch, the boring method includes following step
Suddenly：
Using clamp hole workpiece to be drilled, and make the center for punching face drill bit at center of hole workpiece to be drilled；
Air valve is opened, to cylinder and air drill input air, the cylinder drives the air drill to be moved to hole workpiece to be drilled, institute
It states air drill and drives drill bit rotation；
The controller judges the resistance that drill bit is subject to according to the feed speed and drilling depth of drill bit, and big according to resistance
The air mass flow of gas transmission control unit input cylinder described in minor adjustment；
When the resistance that drill bit is subject to more than the first default resistance and less than the second default resistance when, adjusting air valve, reduce into
The air inflow for entering cylinder makes the drill bit do feed motion with First Speed；
When the resistance that the drill bit is subject to presets resistance more than the second default resistance less than third, adjusting air valve subtracts
The air inflow for entering cylinder less, makes the drill bit do feed motion with second speed；
When the resistance of the drill bit be more than third preset resistance when, make the drill bit with third speed do backhaul, feed it is past
Multiple movement, wherein the First Speed is more than the second speed, and the second speed is greater than or equal to the third speed；
When the drill bit fathom reach predetermined depth when, the controller, which controls the gas transmission control unit, to be stopped
The air of cylinder is inputted, drill bit stops operating.
Compared with prior art, the invention has the advantages that：
(1) automatic punch of the invention controls the gas transmission control by the resistance being subject to of the drill bit in drilling
The air mass flow of unit input cylinder (3) processed not only increases drilling accuracy and precision to adjust the feed speed of drill bit,
And drill bit is hardly damaged, and is hardly damaged hole workpiece to be drilled, improves yield rate and drilling efficiency.
(2) automatic punch of the invention can be carried out travel settings to cylinder, can be automatically controled by PLC controller
The penetration rate and punching depth of drill bit, and it can be directed to the stroke that different core structures adjusts cylinder in real time, to realize
The accuracy of core punching and precision.
(3) upper and lower position of air drill is adjusted by adjusting lifting gear, passes through adjusting for automatic punch of the invention
Mobile device makes the center of the punching center face drill bit of core, therefore air drill can be made to be aligned in three axis directions, improves
The precision of punching, while can also be directed to different cores and carry out drilling operation, realize the wider array of scope of application.
(4) automatic punch of the invention, protective plate is arranged on bracket, core can not only be prevented in the mistake of punching
Movement is generated in journey, and protective plate can be contacted with core at face, effect when can prevent from punching due to drill bit to core
Core is damaged caused by power or crushes, and further protects sand core.
(5) automatic punch of the invention, is punched in the core print of core so that in casting part production process,
Increase cored density, reasonably allows gas to be discharged outside core when core being made to be contacted with high temperature iron liquid, to make casting part
Molding is good, and having avoided gas cannot effectively exclude to generate gas dialysis or breakdown high temperature iron liquid or rest on casting
Piece surface or the thicker position of wall thickness that is subcutaneous or being gathered in casting part or casting part highest point or
Person's iron liquid most end end position generate feel suffocated or casting part iron liquid inlet generate gas contracting or technological design not
The case where generating intensive stomata with unreasonable position is improved to the greatest extent, to improve the quality of product.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without having to pay creative labor, it can also be obtained according to these attached drawings other
Attached drawing.Wherein：
Fig. 1 is the schematic front view of automatic punch of the present invention；
Fig. 2 is the structural schematic diagram of protective plate in Fig. 1；
Fig. 3 is the structural schematic diagram of core fixed frame in Fig. 1；
Fig. 4 is the system block diagram of automatic control system of the present invention.
Wherein, 1- holders, 2- electric cabinets, 3- cylinders, 4- sliding rails, 5- sliding rail pedestals, 6- air drills, 7- drill bits, 8- fixtures, 9-
Bracket, 10- handles, 11- sand cores, 12- protective plates, 13- cylinder intake pipes, 14- inner sleeves, 15- outer sleeves, 16- piston rods,
17- core fixed stations, 81- first clamping plates, 82- second clamping plates, 83- holding tanks, 91- bracket strip-shaped holes, 121- cambered surfaces, 18- wind
Creep into tracheae.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
" one embodiment " or " embodiment " referred to herein refers to that may be included at least one realization method of the present invention
A particular feature, structure, or characteristic." in one embodiment " that different places occur in the present specification not refers both to same
A embodiment, nor the individual or selective embodiment mutually exclusive with other embodiment.
It please refers to Fig.1 to Fig.3, Fig. 1 is the schematic front view of automatic punch of the present invention；Fig. 2 is the knot of protective plate in Fig. 1
Structure schematic diagram；Fig. 3 is the structural schematic diagram of core fixed frame in Fig. 1.By Fig. 1 to Fig. 3 it is found that present invention offer one kind is beaten automatically
Hole machine, the puncher include air drill 6, cylinder 3, fixture 8 and automatic control system.
The head of the air drill 6 is equipped with drill bit 7, and the air drill 6 is for driving the drill bit 7 to rotate.
The cylinder 3 is for pushing the air drill 6 to move horizontally.
The fixture 8 is for clamping hole workpiece 11 to be drilled.The hole workpiece to be drilled of the present invention is core.The fixture 8 is close
The drill bit 6, the fixture 8 are set on core fixed station 17, and bracket 9 is additionally provided on the core fixed station 17, described
Protective plate 12 is provided on bracket 9, the protective plate 12 is oppositely arranged with fixture 8.
Please continue to refer to Fig. 1, puncher of the invention further includes holder 1, lifting gear and carriage.
The lifting gear is fixed on the holder 1, is used for the height of up and down adjustment carriage.The lifting gear
Including outer sleeve 15, inner sleeve 14 and handle 10, the inner sleeve 14 is sheathed in the outer sleeve 15, and the handle 10 is arranged
In 15 outside of the outer sleeve, the handle 10 passes through the outer sleeve 15 and, the sliding rail inconsistent with the inner sleeve 14
Pedestal 5 is set to the top of the inner sleeve 14.
Opened up on 17 upper edge core of core fixed station, 11 length direction for screw by strip hole (not shown), institute
It states bracket 9 to be screwed on the core fixed station 17, and adjustable along the strip hole horizontal.The present invention can be according to need
The difference of the core types to be punched is fixed on type in the position of strip hole by adjusting screw to which the bracket 9 be adjusted
Position on core fixed station 17.The bracket strip-shaped hole 91 passed through for screw, the protective plate 12 are offered on the bracket 9 vertically
It is screwed on the bracket 9, and adjustable along about the 91 bracket strip-shaped hole.What the present invention can punch as needed
The difference of core types, the size or type of replaceable protective plate, by adjusting screw in the upper and lower position of bracket strip-shaped hole 91
To which the height of the protective plate 12, while conveniently replaced different protective plate be adjusted.
The carriage is fixed on the lifting gear, and the carriage includes sliding rail pedestal 5 and sliding rail 4.
The air drill 6 is fixed on the sliding rail 4, and the sliding rail 4 is slidably set on the sliding rail pedestal 5；
The cylinder 3 is fixed on the sliding rail pedestal 5, and piston rod 16, the piston rod 16 are provided in the cylinder 3
One end be fixedly connected with the sliding rail 4.The cylinder 4 pushes sliding rail 4 along the horizontal shifting of the sliding rail pedestal 5 by piston rod 16
It is dynamic.The sliding rail 4 drives air drill 6 to move horizontally in turn.
Please continue to refer to Fig. 2, in one embodiment, the protective plate 12 has cambered surface 121, the cambered surface 121 and type
The core tail end shape of core 11 matches.The protective plate 12 of the arc can not only prevent core from generating shifting during punching
It is dynamic, and protective plate 12 can be contacted with core at face, since drill bit leads to the active force of core when can prevent from punching
Core it is damaged or crush, further protect sand core.
Please continue to refer to Fig. 3, in one embodiment, the fixture 8 includes first clamping plate 81 and second clamping plate 82, described
First clamping plate 81 and second clamping plate 82 form a holding tank 83 when core is clamped, by adjusting first clamping plate 81 and
Core 11 can be securely clamped in the relative position of second splint 82.
Referring to Fig. 4, Fig. 4 is the system block diagram of automatic control system of the present invention.As shown in figure 4, described automatically control is
System includes drill bit feed speed detection unit, drilling depth detection unit, controller, gas transmission control unit and drill speed detection
Unit.
The feed speed detection unit is used to acquire the feed speed information of the drill bit, and by the drill bit of acquisition into
The controller is sent to velocity information.
The drilling depth detection unit is used to acquire the drilling depth information of the drill bit, and by the brill of the drill bit of acquisition
Hole depth information sends the controller to.
The controller controls the gas transmission control unit according to the feed speed and drilling depth information and inputs cylinder 3
Air mass flow.In a preferred embodiment, the controller is PLC controller.In one embodiment, the cylinder
3 travel settings≤300mm.
In one embodiment, the controller controls the gas transmission according to the feed speed and drilling depth of the drill bit
Control unit inputs the air mass flow of cylinder 3, specifically includes：
The controller judges the resistance that drill bit is subject in drilling according to the feed speed of the drill bit, and according to resistance
The air mass flow of gas transmission control unit input cylinder described in big minor adjustment；
When the resistance that the drill bit 7 is subject to is less than the second default resistance more than the first default resistance, the controller
The air mass flow for adjusting the gas transmission control unit input cylinder, makes the drill bit 7 do feed motion with First Speed；
When the resistance that the drill bit 7 is subject to presets resistance more than the second default resistance less than third, the controller
The air mass flow for adjusting the gas transmission control unit input cylinder, makes the drill bit 7 do feed motion with second speed；
When the resistance of the drill bit 7, which is more than third, presets resistance, it is defeated that the controller adjusts the gas transmission control unit
The air mass flow for entering cylinder makes the drill bit 7 do backhaul, feeding reciprocating motion with third speed；Wherein, 7 backhaul of the drill bit
Distance be 2-5cm.
When the drill bit 7 fathom reach predetermined depth when, the controller controls the gas transmission control unit and stops
The air for only inputting cylinder 3, makes drill bit stop operating, completes the drilling of core.
Wherein, in this embodiment, the First Speed is more than the second speed, and the second speed is greater than or equal to
The third speed.The First Speed is initial velocity when drill bit 7 is contacted with 11 surface of hole workpiece to be drilled, and described first is pre-
Handicapping power is initial resistance when drill bit 7 is contacted with 11 surface of hole workpiece to be drilled.When drill bit and 11 surface of hole workpiece to be drilled start
When contact, drill bit keeps higher feed speed, and is punched to core with the feed speed, due to the starting stage in drilling,
The higher feed speed can smoothly drill to core into core certain depth；When drill bit continues to feed
When, the resistance that drill bit is subject to will increase, in order to enable drilling is smoothed out, needs the feed speed for reducing drill bit 7 at this time, makes drill bit
It is fed with second speed, to avoid excessively high feed speed that core 11 is made to be damaged, or even crushes core；Then drill bit 7
Continue feeding drilling, the resistance that drill bit 7 is subject to will continue to increase, at this time can be after in order to avoid drill bit 7 damages core 11
Continuing reduces the feed speed of drill bit 7, and the drill bit 7 is made to do backhaul, feeding reciprocating motion with third speed, until drilling to predetermined
Depth.In another embodiment, the second speed is equal to the third speed.
In the present invention, the controller controls the gas transmission control unit by the resistance being subject to of the drill bit in drilling
The air mass flow for inputting cylinder 3 not only increases drilling accuracy and precision, and drill bit to adjust the feed speed of drill bit
It is hardly damaged, is hardly damaged hole workpiece to be drilled, improve yield rate and drilling efficiency.
The drill speed detection unit sends drill speed information to control for detecting the drill speed information
Device processed, the controller control the gas transmission control unit according to drill speed information and default drill speed information and input air drill
Air mass flow.For the speed rotation for making the rotating speed of drill bit be maintained at certain, the total gas pressure into air drill (6) is 0.3-
0.5MP。
In one embodiment, the gas transmission control unit is air valve, and the air valve includes the first air valve and the second air valve.
The puncher further includes air drill air inlet pipe 18 and cylinder air inlet pipe 13.Described 18 one end of air drill air inlet pipe is connected with the first gas
Valve, the other end are connect with the air inlet of the air drill 6.Described 13 one end of cylinder intake pipe is connected with the second air valve, the other end with
The air inlet of the cylinder 3 connects.In the present invention, also there is the cylinder 3 gas outlet, the air drill 6 also to have gas outlet, when
Drilling is completed, and the air in cylinder is lost heart by gas outlet, and air drill is lost heart by gas outlet, and return hydraulic cylinder, air drill stops operating.
In another embodiment, puncher of the invention further includes mobile device (not shown), and the mobile device is set
It is placed on the core fixed station 17, the fixture 8 is fixed in the mobile device, the controller driving mobile dress
Horizontal movement is set, the center of the punching center face drill bit 7 of hole workpiece 11 to be drilled is made.The present invention is adjustable by adjusting lifting gear
The upper and lower position for saving air drill 6, the center for making the punching center face drill bit 7 of core by adjusting mobile device, therefore wind can be made
It is drilled in three axis directions to be aligned, improves the precision of punching, while can also be directed to different cores and carry out drilling operation, it is real
The existing wider array of scope of application.
In another embodiment, the puncher further includes electric cabinet 2 and power module, the power module and described
PLC controller is respectively positioned in the electric cabinet, and the power module is used to provide power supply for the PLC controller.
The present invention also provides a kind of boring method of automatic punch, the boring method includes the following steps：
Hole workpiece to be drilled is clamped using fixture 8, and makes the center for punching face drill bit 7 at center of hole workpiece 11 to be drilled；
Air valve is opened, to 6 input air of cylinder 3 and air drill, the cylinder 3 drives the air drill 6 to hole workpiece 11 to be drilled
Mobile, the air drill 6 drives drill bit 7 to rotate；
The controller judges the resistance that drill bit is subject to according to the feed speed and drilling depth of drill bit, and big according to resistance
The air mass flow of gas transmission control unit input cylinder described in minor adjustment；
When the resistance that drill bit 7 is subject to more than the first default resistance and less than the second default resistance when, adjusting air valve, reduce into
The air inflow for entering cylinder makes the drill bit 7 do feed motion with First Speed；
When the resistance that the drill bit 7 is subject to presets resistance more than the second default resistance less than third, adjusting air valve subtracts
The air inflow for entering cylinder less, makes the drill bit 7 do feed motion with second speed；
When the resistance of the drill bit 7, which is more than third, presets resistance, the drill bit 7 is made to do backhaul, feeding with third speed
It moves back and forth, wherein the First Speed is more than the second speed, and the second speed is greater than or equal to third speed
Degree；
When the drill bit 7 fathom reach predetermined depth when, the controller controls the gas transmission control unit and stops
Only the air of input cylinder (3), drill bit 7 stop operating.
The invention has the advantages that：
(1), automatic punch of the invention controls the gas transmission control by the resistance being subject to of the drill bit in drilling
The air mass flow of unit input cylinder (3) processed not only increases drilling accuracy and precision to adjust the feed speed of drill bit,
And drill bit is hardly damaged, and is hardly damaged hole workpiece to be drilled, improves yield rate and drilling efficiency.
(2), automatic punch of the invention can be carried out travel settings to cylinder, can be controlled automatically by PLC controller
The penetration rate and punching depth of drill bit processed, and it can be directed to the stroke that different core structures adjusts cylinder in real time, to real
The accuracy of existing core punching and precision.
(3), the upper and lower position of air drill is adjusted by adjusting lifting gear, passes through tune for automatic punch of the invention
Section mobile device makes the center of the punching center face drill bit of core, therefore air drill can be made to be aligned in three axis directions, improves
The precision of punching, while can also be directed to different cores and carry out drilling operation, it realize the wider array of scope of application.
(4), automatic punch of the invention, protective plate is arranged on bracket, core can not only be prevented in punching
Movement is generated in the process, and protective plate can be contacted with core at face, since drill bit is to the work of core when can prevent from punching
Core is damaged caused by firmly or crushes, and further protects sand core.
(5), automatic punch of the invention, is punched in the core print of core so that in casting part production process,
Increase cored density, reasonably allows gas to be discharged outside core when core being made to be contacted with high temperature iron liquid, to make casting part
Molding is good, and having avoided gas cannot effectively exclude to generate gas dialysis or breakdown high temperature iron liquid or rest on casting
Piece surface or the thicker position of wall thickness that is subcutaneous or being gathered in casting part or casting part highest point or
Person's iron liquid most end end position generate feel suffocated or casting part iron liquid inlet generate gas contracting or technological design not
The case where generating intensive stomata with unreasonable position is improved to the greatest extent, to improve the quality of product.
Above description has fully disclosed the specific implementation mode of the present invention.It should be pointed out that being familiar with the field
Technical staff is to any change for being done of specific implementation mode of the present invention all without departing from the range of claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (9)
1. a kind of automatic punch, it is characterised in that：The puncher includes air drill (6), cylinder (3), fixture (8) and automatic control
The head of system processed, the air drill (6) is equipped with drill bit (7)；
The air drill (6) is for driving the drill bit (7) to rotate；
The cylinder (3) is for pushing the air drill (6) to move horizontally；
The fixture is for clamping hole workpiece to be drilled (11)；
The automatic control system includes drill bit feed speed detection unit, drilling depth detection unit, controller and gas transmission control
Unit processed；
The feed speed detection unit is used to acquire the feed speed information of the drill bit；
The drilling depth detection unit is used to acquire the drilling depth information of the drill bit；
The controller controls the gas transmission control unit input cylinder (3) according to the feed speed and drilling depth information
Air mass flow specifically includes：
The controller judges the resistance that drill bit is subject in drilling according to the feed speed of the drill bit, and according to drag size
Adjust the air mass flow of the gas transmission control unit input cylinder；
When the resistance that the drill bit (7) is subject to is less than the second default resistance more than the first default resistance, make the drill bit (7)
Feed motion is done with First Speed；
When the resistance that the drill bit (7) is subject to presets resistance more than the second default resistance less than third, make the drill bit (7)
Feed motion is done with second speed；
When the resistance of the drill bit (7), which is more than third, presets resistance, the drill bit (7) is made to do backhaul, feeding with third speed
It moves back and forth；
When the drill bit (7) fathom reach predetermined depth when, the controller, which controls the gas transmission control unit, to be stopped
Input the air of cylinder (3)；
Wherein, the First Speed is more than the second speed, and the second speed is greater than or equal to the third speed.
2. automatic punch according to claim 1, it is characterised in that：
The First Speed is initial velocity when drill bit (7) is contacted with hole workpiece to be drilled (11) surface, the first pre- handicapping
Power is initial resistance when drill bit (7) is contacted with hole workpiece to be drilled (11) surface.
3. automatic punch according to claim 1, it is characterised in that：
The automatic control system further includes drill speed detection unit,
The drill speed detection unit is for detecting the drill speed information；
The controller controls the gas transmission control unit according to drill speed information and default drill speed information and inputs air drill
Air mass flow.
4. automatic punch according to claim 3, it is characterised in that：
The distance of travel settings≤300mm of the cylinder (3), drill bit (7) backhaul are 2-5cm, into air drill (6)
Total gas pressure is 0.3-0.5MP.
5. automatic punch according to claim 1, it is characterised in that：
The controller is PLC controller.
6. automatic punch according to claim 4, it is characterised in that：
The gas transmission control unit is air valve, and the air valve includes the first air valve and the second air valve；
The puncher further includes air drill air inlet pipe (18) and cylinder air inlet pipe (13)；
Described air drill air inlet pipe (18) one end is connected with the first air valve, and the other end is connect with the air inlet of the air drill (6)；
Described cylinder intake pipe (13) one end is connected with the second air valve, and the other end is connect with the air inlet of the cylinder (3).
7. automatic punch according to claim 1, it is characterised in that：
The puncher further includes holder (1), lifting gear and carriage；
The lifting gear is fixed on the holder (1), is used for the height of up and down adjustment carriage；
The carriage is fixed on the lifting gear, and the carriage includes sliding rail pedestal (5) and sliding rail (4)；
The air drill (6) is fixed on the sliding rail (4), and the sliding rail (4) is slidably set on the sliding rail pedestal (5)；
The cylinder (3) is fixed on the sliding rail pedestal (5), and piston rod (16), the piston are provided in the cylinder (3)
One end of bar (16) is fixedly connected with the sliding rail (4).
8. automatic punch according to claim 1, it is characterised in that：
The fixture (8) is fixed in mobile device；
The controller drives the mobile device horizontal movement, makes the punching center face drill bit (7) of hole workpiece to be drilled (11)
Center.
9. a kind of boring method using automatic punch as described in claim 1, it is characterised in that：Include the following steps：
Using clamp hole workpiece to be drilled, and make the center for punching face drill bit at center of hole workpiece to be drilled；
Air valve is opened, to cylinder and air drill input air, the cylinder drives the air drill to be moved to hole workpiece to be drilled, the wind
Drill bit rotation is moved in drilling；
The controller judges the resistance that drill bit is subject to according to the feed speed and drilling depth of drill bit, and according to drag size tune
Save the air mass flow of the gas transmission control unit input cylinder；
When the resistance that drill bit is subject to is less than the second default resistance more than the first default resistance, adjusting air valve reduces and enters gas
The air inflow of cylinder makes the drill bit do feed motion with First Speed；
When the resistance that the drill bit is subject to more than the second default resistance and less than third preset resistance when, adjusting air valve, reduce into
The air inflow for entering cylinder makes the drill bit do feed motion with second speed；
When the resistance of the drill bit, which is more than third, presets resistance, the drill bit is made to do backhaul, the reciprocal fortune of feeding with third speed
It is dynamic, wherein the First Speed is more than the second speed, and the second speed is greater than or equal to the third speed；
When the drill bit fathom reach predetermined depth when, the controller controls the gas transmission control unit and stops input
The air of cylinder (3), drill bit stop operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234634.9A CN106827253B (en) | 2016-12-28 | 2016-12-28 | A kind of automatic punch and boring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234634.9A CN106827253B (en) | 2016-12-28 | 2016-12-28 | A kind of automatic punch and boring method |
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| CN106827253A CN106827253A (en) | 2017-06-13 |
| CN106827253B true CN106827253B (en) | 2018-10-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471455A (en) * | 2017-08-06 | 2017-12-15 | 乔斌 | Drilling equipment for carborundum seal |
| CN108515369B (en) * | 2018-03-30 | 2019-10-01 | 宁波辉励铭诚汽车零部件有限公司 | A kind of part punching device |
| TWI704434B (en) | 2019-12-03 | 2020-09-11 | 財團法人工業技術研究院 | Drilling system and method thereof |
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| SU1553275A1 (en) * | 1988-05-12 | 1990-03-30 | Предприятие П/Я М-5921 | Arrangement for working parts of various length |
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| CN106827253A (en) | 2017-06-13 |
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Address after: 213011 No.313, Wuyi Road, Jingkai District, Changzhou City, Jiangsu Province Patentee after: CRRC CHANGZHOU AUTO PARTS CO.,LTD. Country or region after: China Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213011 No.313, Wuyi Road, Jingkai District, Changzhou City, Jiangsu Province Patentee before: CRRC CHANGZHOU AUTO PARTS CO.,LTD. Country or region before: China Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |