CN107900417A - A kind of hinge puncher that can accurately control drilling depth - Google Patents
A kind of hinge puncher that can accurately control drilling depth Download PDFInfo
- Publication number
- CN107900417A CN107900417A CN201711368737.9A CN201711368737A CN107900417A CN 107900417 A CN107900417 A CN 107900417A CN 201711368737 A CN201711368737 A CN 201711368737A CN 107900417 A CN107900417 A CN 107900417A
- Authority
- CN
- China
- Prior art keywords
- rig floor
- circuit
- drilling depth
- contact
- control drilling
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/26—Liftable or lowerable drill heads or headstocks; Balancing arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/24—Control or regulation of position of tool or workpiece of linear position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
- B23Q17/225—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece of a workpiece relative to the tool-axis
Abstract
A kind of hinge puncher that can accurately control drilling depth, including workbench, stent and the rig floor being arranged on stent, the rig floor bottom is provided with three gang drill heads, the rig floor top is provided with the elevating mechanism for driving rig floor to lift, the lifting process of the elevating mechanism is uniform motion, the control system for being useful for control drilling depth is further included, the control system includes probe unit：For sensing the time of contact of drill bit end and plank and sending activation signal；Timing unit：For accurately controlling the fall time of elevating mechanism, start timing when receiving activation signal, sent after preset time by signal.Its advantage is can accurately to control the drilling depth of hinge puncher, and punching depth will not be influenced be subject to plate its thickness.
Description
Technical field
The present invention relates to hinge puncher field, and in particular to a kind of hinge that can accurately control drilling depth punches
Machine.
Background technology
Hinge puncher is a kind of common punch device of wooden boards manufacture field, for being closed to wooden erection of doors and windows
Punched in advance during page.As network address is：https:One shown in //b2b.hc360.com/supplyself/517053501.html
Kind hinge puncher, including workbench and liftable rig floor, rig floor can be moved reciprocatingly with the vertical direction, to work
Plate on platform drills.But the drilling machine of the type is when drilling plate, is the dropping distance according to rig floor
To control drilling depth, but when the thickness of plate is different, the dropping distance for being adjusted merely by rig floor can not accurately
Drilling depth is controlled, drilling depth is often influenced to produce very big error be subject to plate its thickness, and under rig floor
Drop distance also can not draw accurate numerical value, so can not be accurately controlled to drilling depth.
The content of the invention
The object of the present invention is to provide a kind of hinge puncher that can accurately control drilling depth, its advantage is can essence
The really drilling depth of control hinge puncher, punching depth will not be influenced be subject to plate its thickness.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of hinge puncher that can accurately control drilling depth, including workbench, stent and the brill being arranged on stent
Platform, the rig floor bottom are provided with three gang drill heads, and the rig floor top is provided with the elevating mechanism for driving rig floor to lift, institute
The lifting process for stating elevating mechanism is uniform motion, further includes the control system for being useful for control drilling depth, the control
System includes
Probe unit：For sensing the time of contact of drill bit end and plank and sending activation signal；
Timing unit：For accurately controlling the fall time of elevating mechanism, start timing when receiving activation signal, by pre-
If sent after the time by signal.
Through the above technical solutions, elevating mechanism can control the lifting of rig floor, probe unit can detect drill bit and plate
The time of contact of material simultaneously sends activation signal, and timing unit can be controlled according to preset time when receiving activation signal and lifted
Mechanism declines fixed distance, so as to control the depth of drilling, when drilling finishes, timing unit sends pick-off signal, makes rig floor
It is raised above resetting, reaches the effect of accurate control drilling depth.
The present invention is further arranged to：The elevating mechanism includes being used for the stepper motor for driving rig floor to lift, the step
Stepper motor output shaft is fixedly connected with screw, in the rig floor is socketed on that screw is outer and is provided with rig floor and coordinates with screw
Screw thread, is provided with the stent and spacing sleeve is carried out to rig floor.
Through the above technical solutions, step motor control screw rotates, rig floor when rig floor is rotated with screw with the screw that is fated
It can move up and down, sleeve plays position-limiting action to rig floor, makes rig floor not rotatable.
The present invention is further arranged to：The timing unit is timing circuit made of 555 timers, 555 timers
Four pins couple power supply, and the probe unit of connecting between the 4th pin of 555 timer and power supply.
Through the above technical solutions, 555 timers are one of current most common timing circuits, this low, dependable performance, and
And the switch that probe unit is formed is connected between timing circuit and power supply, when detection unit detects that drill bit is contacted with plank
Timing circuit obtains electric, while the triggering end of timing circuit receives trigger signal and starts timing.
The present invention is further arranged to：The probe unit is detection bar, and the detection bar is fixed on rig floor, institute
State detection bar to be vertically arranged and be internally provided with cavity, the contact bar being slidably connected with cavity is provided with the cavity, it is described
Contact rod end top is provided with a columned metal backup, and a spring, cavity are provided between block and the cavity top
Inner wall is additionally provided with two contacts being vertically arranged, and contact is made and is embedded in cavity inner wall for metal material, the contact with
Block forms a switch, and two contact connects the timing circuit power supply respectively.
Through the above technical solutions, detection bar is vertically arranged and is internally provided with cavity, the contact bar detected in bar can be with
Being slided in cavity, the block for contacting boom end is conductor material, which switchs with being embedded to be formed in the contact of cavity inner wall,
The contact both ends connect timer power supply respectively, and when detecting bar upward sliding and making block with contact, timing circuit obtains electric
Trigger signal is received at the same time, and control elevating mechanism moves downward fixed distance.
The present invention is further arranged to：The detection bar, which is adopted, to be made from an insulative material.
Through the above technical solutions, the detection bar of insulating materials can be isolated two contacts, make two contacts initial
Do not turned under state, when block upward sliding, contact can just turn on.
The present invention is further arranged to：Point that coupling is arranged in series between the timing circuit second pin and the 8th pin
Piezoresistance and slide rheostat, the slide rheostat couple the 7th pin with divider resistance node.
Through the above technical solutions, can change the timing of timing circuit by adjusting the resistance value of slide rheostat,
Since the movement of elevating mechanism is uniform motion, the timing by varying timing circuit is that the drilling of controllable puncher is deep
Degree.
The present invention is further arranged to：The timing circuit output terminal couples not circuit, the connection of not circuit output terminal
There is the first driving triode, driving transistor emitter coupling one is used for the second relay for controlling elevating mechanism to rise, also wraps
Motor positive/reverse rotation circuit is included, the motor positive/reverse rotation circuit includes rotating forward circuit and reversion circuit, set on the reversion circuit
It is equipped with the normally opened contact for being controlled by second relay.
Through the above technical solutions, when timing circuit receives trigger signal, when timing circuit output terminal exports one section
Between high level signal, high level signal is converted into low level signal by not circuit, and driving triode is not turned on, by pre-
If driving triode output low level signal after the time, low level signal is converted into high level signal by not circuit, makes the
Two driving triode ONs, make to invert the normally opened contact closure in circuit in motor positive/reverse rotation circuit, motor reversal, makes on rig floor
Rise.
The present invention is further arranged to：Travel switch is in series with the reversion circuit.
Through the above technical solutions, when rig floor rises to initial position, travel switch is touched at the top of rig floor, makes reversion
Circuit disconnects, and rig floor stops rising.
The present invention is further arranged to：What the motor positive/reverse rotation circuit included being arranged in series is used to control what motor rotated forward
Switch key and the first relay, switch key both ends parallel connection one is controlled by the normally opened contact of the first relay, described
It is connected outside switch key after one normally-closed contact of series connection with power supply, the first relay other end ground connection.
Through the above technical solutions, when pressing switch key, the first relay obtains electric, is arranged in parallel with switch key
Normally opened contact K1 obtains electric closure, and during trip switch button, switch key disconnects, electric current from power supply by contact K1 flow to first after
Electric appliance, forms latching circuit, rotates forward motor, and rig floor declines, and when timing circuit is exported by signal, the second relay obtains electric
Making to disconnect with the normally-closed contact K2 that switch key and normally opened contact K1 are arranged in series, rotate forward circuit and disconnect, motor stops rotating forward,
K2 closures start to invert, and make the upward exercise recovery of rig floor in situ.
In conclusion the invention has the advantages that：
The hinge puncher is provided with the probe unit for detecting drill bit and web contact time, and by accurately controlling lifting
Dropping distance of the mechanism since bit contact plate controls drilling depth, drilling depth is not subject to plate its thickness
Influence, accurately adjusted according to the actual requirements easy to staff, when complete drill after rig floor can be raised above recovering automatically
Original position, easy to process next time.
Brief description of the drawings
Fig. 1 is the puncher overall structure diagram；
Fig. 2 is the sectional view that the puncher embodies probe unit；
Fig. 3 is the A portions enlarged drawing of Fig. 2；
Fig. 4 is control system circuit figure.
In figure, 1, workbench；2nd, stent；21st, sleeve；22nd, support plate；3rd, rig floor；31st, drill bit；4th, stepper motor；41、
Screw；5th, probe unit；51st, bar is detected；511st, cavity；512nd, bar is contacted；5121st, block；513rd, spring；514th, contact；61、
Timing circuit；611st, slide rheostat；62nd, not circuit；63rd, triode is driven；7th, motor positive/reverse rotation circuit；71st, control electricity
Road.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of hinge puncher that can accurately control drilling depth, including workbench 1, stent 2 and
The rig floor 3 being arranged on stent 2, is provided with support plate 22 on stent 2,3 bottom of rig floor is provided with three gang drills first 31, and rig floor 3 pushes up
End is provided with the elevating mechanism for driving rig floor 3 to lift, and the lifting process of elevating mechanism is uniform motion, and elevating mechanism includes
For the stepper motor 4 for driving rig floor 3 to lift, stepper motor 4 is fixed in support plate 22, and 4 output shaft of stepper motor is consolidated
Surely screw 41 is connected with, rig floor 3 is socketed on outside screw 41 and the internal thread coordinated with screw 41, stent 2 are provided with rig floor 3
On be provided with spacing sleeve 21 carried out to rig floor 3, under when stepper motor 4 rotates forward, rig floor 3 can be under the driving of screw 41
Drop, rig floor 3 rises during reversion.
As shown in Figures 2 and 3,3 side of rig floor is provided with a detection bar 51 being wholely set with rig floor 3, the detection bar 51
It is vertically arranged, and detects bar 51 and adopt and be made from an insulative material, detects the cavity 511 that cylinder is provided with bar 51, cavity 511
A contact bar 512 being slidably connected with cavity 511 is inside provided with, contact 512 end set of bar has a columned block 5121,
The block 5121 is made of conductor material, and 511 bottom of cavity is provided with the annular retaining wall coordinated with the block 5121, block 5121
A spring 513 is provided between 511 top of cavity, 511 inner wall of cavity is additionally provided with two contacts being vertically arranged 514, touches
Point 514 is made and is embedded in 511 inner wall of cavity for iron material matter, when block 5121 is risen at contact 514, at two between point
Circuit is switched on, and makes to form a switch between block 5121 and contact 514.Bar 512 is contacted under original state and is longer than drill bit 31,
And the distance between contact 514 and block 5121 are equal to and contact the distance that 512 bottom of bar is longer than 31 bottom of drill bit.
As shown in figure 4, hinge punching further includes the control system for being useful for control drilling depth, control system includes：
Probe unit 5：It is made of above-mentioned detection bar 51 and contact 514, during for sensing contact of 31 end of drill bit with plank
Between and send activation signal；
Timing unit：For timing circuit 61 made of 555 timers, the 4th pin of timing circuit 61 couples power supply, and the 4th
It is connected between pin and power supply on the contact 514 in above-mentioned detection bar 51.And 514 one end of contact is straight by two resistance
The triggering end of 555 timers is connect in succession（That is second pin）, when drill bit 31 touches plank, contact 514 is just switched on, this
When 555 timers triggers termination receive activation signal, when exporting pick-off signal after preset time.The second of timing circuit 61
Pin and the 8th pin are externally connected with the divider resistance R1 and slide rheostat 611 being arranged in series, divider resistance R1 and
7th pin of the node coupling timing circuit 61 of slide rheostat 611, can change by varying the resistance value of slide rheostat 611
Become the timing of timing circuit 61, the slide plate 6111 of slide rheostat 611 is arranged on detection bar 51 and is set on detection bar 51
It is equipped with and time corresponding scale（Graduation mark not shown in figure）, can essence by the corresponding scale for observing slide plate 6111
True control preset time.
As shown in figure 4,61 output terminal of timing circuit couples not circuit 62,62 output terminal of not circuit is connected with driving three
Level pipe 63,63 emitter of driving triode coupling one are used for the relay KM2 for controlling elevating mechanism to rise.Motor is further included just
Circuit for reversing, motor positive/reverse rotation circuit include rotating forward circuit and reversion circuit, are provided with rotating forward circuit and are controlled by relay KM1
Normally opened contact K12, invert circuit on be provided with the normally opened contact K22 for being controlled by relay KM2.
As shown in figure 4, motor positive/reverse rotation circuit, which further includes, is useful for the control circuit 71 that control stepper motor 4 is just working,
Control circuit 71 includes the switch key SB1 and relay KM1 that are used to control stepper motor 4 to rotate forward being arranged in series, switch
Button SB1 both ends parallel connections one are controlled by the normally opened contact K11 of the first relay, and connect a normally-closed contact K21 outside switch key SB1
It is connected afterwards with power supply, relay KM1 other ends ground connection.The opening and closing of normally-closed contact K21 is controlled by above-mentioned relay KM2.
When pressing switch key, relay KM1 obtains electric, is obtained with the normally opened contact K11 that switch key SB1 is arranged in parallel electric
Closure, forms latching circuit, rotates forward stepper motor 4, and rig floor 3 is in uniform descent process, when contact bar 512 touches plank
When contact the upward sliding in cavity 511 of bar 512, the block of bar 512 end is contacted when drill bit 31 touches board surface
5121 contact with contact 514, obtain timing circuit 61 electric, while 61 triggering end of timing circuit receives trigger signal, by one
After fixed preset time, the output terminal output low level signal of timing circuit 61, turns low level signal by not circuit 62
High level signal is turned to, turns on driving triode 63, the relay KM2 of driving triode 63 emitter connection obtains electric, reversion
Contact K22 in circuit is disconnected, normally opened contact K12 closures, while relay KM1 dead electricity, contact K11 are changed into disconnected from closure state
Open state, stepper motor 4 invert, and rig floor 3 is increased, and when rig floor 3 rises to initial position, the top of rig floor 3 touches stroke
Switch, disconnects reversion circuit, and rig floor 3 stops rising.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
Claims (9)
1. a kind of hinge puncher that can accurately control drilling depth, including workbench (1), stent (2) and it is arranged on branch
Rig floor (3) on frame (2), rig floor (3) bottom are provided with three gang drill heads (31), and rig floor (3) top, which is provided with, to be used for
The elevating mechanism of rig floor (3) lifting is driven, it is characterized in that：The lifting process of the elevating mechanism is uniform motion, is further included
The control system of control drilling depth is useful for, the control system includes：
Probe unit (5)：For sensing the time of contact of drill bit (31) end and plank and sending activation signal；
Timing unit：For accurately controlling the fall time of elevating mechanism, start timing when receiving activation signal, by pre-
If sent after the time by signal.
2. a kind of hinge puncher that can accurately control drilling depth according to claim 1, it is characterized in that：The liter
Descending mechanism includes being used for the stepper motor (4) for driving rig floor (3) to lift, and stepper motor (4) output shaft is fixedly connected with silk
Bar (41), the rig floor (3) are socketed on screw (41) outside and the internal thread with screw (41) cooperation are provided with rig floor (3),
It is provided with the stent (2) and spacing sleeve (21) is carried out to rig floor (3).
3. a kind of hinge puncher that can accurately control drilling depth according to claim 1, it is characterized in that：The meter
Shi Danyuan is timing circuit (61) made of 555 timers, the 4th pin of 555 timer coupling power supply, and 555 timers the
Connect between four pins and power supply the probe unit (5).
4. a kind of hinge puncher that can accurately control drilling depth according to claim 3, it is characterized in that：The spy
Unit (5) is surveyed as detection bar (51), the detection bar (51) is fixed on rig floor (3), and the detection bar (51) sets vertically
Put and be internally provided with cavity (511), the contact bar being slidably connected with cavity (511) is provided with the cavity (511)
(512), contact bar (512) end top is provided with a columned metal backup (5121), the block (5121) and sky
A spring (513) is provided between chamber (511) top, cavity (511) inner wall is additionally provided with two contacts being vertically arranged
(514), contact (514) are made for metal material and are embedded in cavity (511) inner wall, the contact (514) and block (5121)
A switch is formed, two contacts (514) connect the timing circuit (61) power supply respectively.
5. a kind of hinge puncher that can accurately control drilling depth according to claim 4, it is characterized in that：The spy
Measuring staff (51), which is adopted, to be made from an insulative material.
6. a kind of hinge puncher that can accurately control drilling depth according to claim 3, it is characterized in that：It is described fixed
When circuit (61) second pin and the 8th pin between couple the divider resistance being arranged in series and slide rheostat (611), institute
State slide rheostat (611) and couple the 7th pin with divider resistance node.
7. a kind of hinge puncher that can accurately control drilling depth according to claim 6, it is characterized in that：It is described fixed
When circuit (61) output terminal coupling not circuit (62), not circuit (62) output terminal is connected with the first driving triode, drives
Triode (63) emitter coupling one is used for the second relay for controlling elevating mechanism to rise, and has further included motor positive/reverse rotation circuit
(7), the motor positive/reverse rotation circuit (7) includes rotating forward circuit and reversion circuit, is provided with the reversion circuit and is controlled by institute
State the normally opened contact of the second relay.
8. a kind of hinge puncher that can accurately control drilling depth according to claim 7, it is characterized in that：It is described anti-
Go back to and travel switch is in series with road.
9. a kind of hinge puncher that can accurately control drilling depth according to claim 7, it is characterized in that：The electricity
Machine positive and negative rotation circuit (7) includes the switch key and the first relay that are used to control motor to rotate forward being arranged in series, described to open
Close button both ends parallel connection one is controlled by the normally opened contact of the first relay, after a normally-closed contact of connecting outside the switch key with electricity
Source connects, the first relay other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711368737.9A CN107900417B (en) | 2017-12-18 | 2017-12-18 | A kind of hinge puncher that can accurately control drilling depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711368737.9A CN107900417B (en) | 2017-12-18 | 2017-12-18 | A kind of hinge puncher that can accurately control drilling depth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107900417A true CN107900417A (en) | 2018-04-13 |
| CN107900417B CN107900417B (en) | 2019-07-02 |
Family
ID=61869317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711368737.9A Active CN107900417B (en) | 2017-12-18 | 2017-12-18 | A kind of hinge puncher that can accurately control drilling depth |
Country Status (1)
| Country | Link |
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| CN (1) | CN107900417B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788220A (en) * | 2018-07-31 | 2018-11-13 | 常州信息职业技术学院 | A kind of two-way perforating device and drilling method based on electromagnetism auxiliary |
| CN110449634A (en) * | 2019-08-14 | 2019-11-15 | 含山县清溪德胜铸造厂 | A kind of drilling machine of numerical control finishing |
| CN110488691A (en) * | 2019-08-06 | 2019-11-22 | 淮安信息职业技术学院 | Drill bit tests automatic measuring and controlling circuit |
| CN111043945A (en) * | 2019-12-31 | 2020-04-21 | 重庆市耀城玻璃制品有限公司 | Detection device for detecting punching displacement of glass pot cover |
| CN111975057A (en) * | 2020-07-12 | 2020-11-24 | 黄朋飞 | Numerical control double-side milling machine with automatic limiting mechanism |
| CN112008460A (en) * | 2020-07-29 | 2020-12-01 | 成都飞机工业（集团）有限责任公司 | Group hole making tool and method |
| CN112388327A (en) * | 2020-11-13 | 2021-02-23 | 张尚林 | Raised nonstop edging equipment in surface groove for metal product production |
| CN112404478A (en) * | 2020-11-05 | 2021-02-26 | 南京航浦机械科技有限公司 | Self-adaptive drilling device and method for composite material/metal material laminated structure |
| CN112719370A (en) * | 2021-01-12 | 2021-04-30 | 广州崇真科技有限公司 | Punching equipment capable of detecting hole deformation and automatically adjusting feeding amount |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788220A (en) * | 2018-07-31 | 2018-11-13 | 常州信息职业技术学院 | A kind of two-way perforating device and drilling method based on electromagnetism auxiliary |
| CN110488691A (en) * | 2019-08-06 | 2019-11-22 | 淮安信息职业技术学院 | Drill bit tests automatic measuring and controlling circuit |
| CN110449634A (en) * | 2019-08-14 | 2019-11-15 | 含山县清溪德胜铸造厂 | A kind of drilling machine of numerical control finishing |
| CN111043945A (en) * | 2019-12-31 | 2020-04-21 | 重庆市耀城玻璃制品有限公司 | Detection device for detecting punching displacement of glass pot cover |
| CN111975057A (en) * | 2020-07-12 | 2020-11-24 | 黄朋飞 | Numerical control double-side milling machine with automatic limiting mechanism |
| CN112008460A (en) * | 2020-07-29 | 2020-12-01 | 成都飞机工业（集团）有限责任公司 | Group hole making tool and method |
| CN112404478A (en) * | 2020-11-05 | 2021-02-26 | 南京航浦机械科技有限公司 | Self-adaptive drilling device and method for composite material/metal material laminated structure |
| CN112404478B (en) * | 2020-11-05 | 2021-10-01 | 南京航浦机械科技有限公司 | Self-adaptive drilling device and method for composite material/metal material laminated structure |
| CN112388327A (en) * | 2020-11-13 | 2021-02-23 | 张尚林 | Raised nonstop edging equipment in surface groove for metal product production |
| CN112388327B (en) * | 2020-11-13 | 2022-04-26 | 上海弘智金属制品有限公司 | Raised nonstop edging equipment in surface groove for metal product production |
| CN112719370A (en) * | 2021-01-12 | 2021-04-30 | 广州崇真科技有限公司 | Punching equipment capable of detecting hole deformation and automatically adjusting feeding amount |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107900417B (en) | 2019-07-02 |
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