CN204382439U - A kind of slabber control system - Google Patents
A kind of slabber control system Download PDFInfo
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- CN204382439U CN204382439U CN201420855527.8U CN201420855527U CN204382439U CN 204382439 U CN204382439 U CN 204382439U CN 201420855527 U CN201420855527 U CN 201420855527U CN 204382439 U CN204382439 U CN 204382439U
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- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012795 verification Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a kind of slabber control system.It comprises controller, the distance detection module detecting timber clamp system displacement and the proximity switch be arranged on guide rail, described controller comprises CPU, power module, display screen and button group, and described CPU is electrically connected with driving mechanism, distance detection module, proximity switch, power module, display screen and button group respectively.The utility model by being arranged on the position of the proximity switch verification timber clamp system of ad-hoc location on guide rail, thus determines timber surplus size radially, reduces error, is conducive to the cutting accurately controlling residue timber.
Description
Technical field
The utility model relates to slabber technical field, particularly relates to a kind of slabber control system.
Background technology
Slabber comprises the roadster railway that arranges along the longitudinal direction and can along the sport car of roadster railway movement, described sport car be provided with arrange in left-right direction guide rail, can along the timber clamp system of guide rail movement and the driving mechanism driving the movement of timber clamp system.Existing slabber control system controls the displacement detecting timber clamp system when timber clamp system moves left and right, thus records the radially cut size of timber on timber clamp system, calculates timber surplus size radially.During cutting timber, staff controls timber clamp system transverse shifting one segment distance by controller and stops, and slabber cuts one section of timber, and the distance then controlling the mobile setting again along same direction of timber clamp system is stopped, slabber cuts one section of timber again, and so forth.Timber clamp system is after repeatedly moving, and its actual displacement and the displacement recorded exist error, thus cause the timber surplus size radially calculated to there is error, the cutting of impact residue timber.
Summary of the invention
The purpose of this utility model be overcome existing slabber control system control timber clamp system repeatedly mobile after, error is there is in the actual displacement of timber clamp system with the displacement recorded, the timber surplus size radially calculated is caused to there is error, the technical problem of impact residue timber cutting, provide a kind of slabber control system, it is by being arranged on the position of the proximity switch verification timber clamp system of ad-hoc location on guide rail, thus determine timber surplus size radially, reduce error, be conducive to the cutting accurately controlling residue timber.
In order to solve the problem, the utility model is achieved by the following technical solutions:
A kind of slabber control system of the present utility model, described slabber comprises the roadster railway that arranges along the longitudinal direction and can along the sport car of roadster railway movement, described sport car is provided with the guide rail arranged in left-right direction, can along the timber clamp system of guide rail movement and the driving mechanism driving the movement of timber clamp system, comprise controller, the distance detection module detecting timber clamp system displacement and the proximity switch be arranged on guide rail, described controller comprises CPU, power module, display screen and button group, described CPU respectively with driving mechanism, distance detection module, proximity switch, power module, display screen and the electrical connection of button group.
In the technical program, during work, staff, by timber clamp system clamping timber, then to be transmitted control signal this CPU by button group.CPU drives timber clamp system to move left and right on guide rail by driving mechanism, thus adjustment timber is sawed lower size, and after timber is adjusted to position, central processing unit controls timber clamp system stops movement.Then, staff starts sport car work, and sport car moves forward and backward, under timber is sawed by saw blade.
When timber clamp system moves, distance detection module detects the displacement of timber clamp system, and being sent to CPU, CPU obtains the radially cut size of timber according to the displacement of timber clamp system, thus calculates timber surplus size radially.When timber clamp system moves to proximity switch place, proximity switch sends triggering signal to CPU, the displacement of timber clamp system is modified to preset value by CPU, thus accurately calculate timber surplus size radially, reduce error, be conducive to the cutting accurately controlling residue timber.
As preferably, described driving mechanism comprises three-phase alternating-current motor and transmission mechanism, described three-phase alternating-current motor is connected with timber clamp system by transmission mechanism, described controller also comprises drive circuit, described drive circuit comprises air switch QS1, air switch QS2, rectifier, contactor KM1, contactor KM2 and contactor KM3, the first input end of air switch QS1 and the A of three-phase alternating current are electrically connected, second input of air switch QS1 and the B of three-phase alternating current are electrically connected, 3rd input of air switch QS1 and the C of three-phase alternating current are electrically connected, first output of air switch QS1 is electrically connected with first normally opened contact switch one end of first normally opened contact switch one end of contactor KM1 and contactor KM2, second output of air switch QS1 is electrically connected with second normally opened contact switch one end of second normally opened contact switch one end of contactor KM1 and contactor KM2, 3rd output of air switch QS1 is electrically connected with the 3rd normally opened contact switch one end of the 3rd normally opened contact switch one end of contactor KM1 and contactor KM2, the first normally opened contact switch other end of contactor KM1 is electrically connected with the 3rd normally opened contact switch other end of contactor KM2 and the U phase winding terminal of three-phase alternating-current motor, the second normally opened contact switch other end of contactor KM1 is electrically connected with the second normally opened contact switch other end of contactor KM2 and the V phase winding terminal of three-phase alternating-current motor, the 3rd normally opened contact switch other end of contactor KM1 is electrically connected with the first normally opened contact switch other end of contactor KM2 and the W phase winding terminal of three-phase alternating-current motor, two inputs of air switch QS2 are electrically connected with the C phase of three-phase alternating current and zero line respectively, two outputs of air switch QS2 are electrically connected with two inputs of rectifier, two outputs of rectifier are electrically connected with first normally opened contact switch one end of contactor KM3 and second normally opened contact switch one end respectively, the first normally opened contact switch other end of contactor KM3 is electrically connected with the V phase winding terminal of three-phase alternating-current motor, the second normally opened contact switch other end of contactor KM3 is electrically connected with the W phase winding terminal of three-phase alternating-current motor, the first end of contactor KM1 coil, the first end of contactor KM2 coil and the first end of contactor KM3 coil are electrically connected with CPU respectively, second end of contactor KM1 coil, second end of contactor KM2 coil and the second end all ground connection of contactor KM3 coil.
CPU controls the rotating of three-phase alternating-current motor by contactor KM1 and contactor KM2, thus controls moving left and right of timber clamp system, controls three-phase alternating-current motor carry out dynamic braking by contactor KM3.
As preferably, first output of described CPU is electrically connected with the first end of contactor KM1 coil by the first normally-closed contact switch of contactor KM2, second end of contactor KM1 coil passes through the first normally-closed contact switch ground connection of contactor KM3, second output of CPU is electrically connected with the first end of contactor KM2 coil by the first normally-closed contact switch of contactor KM1, second end of contactor KM2 coil is electrically connected with the second end of contactor KM1 coil, 3rd output of CPU is electrically connected with the first end of contactor KM3 coil by the second normally-closed contact switch of contactor KM1 and the second normally-closed contact switch of contactor KM2, second end ground connection of contactor KM3 coil.
Contactor KM1, contactor KM2 and contactor KM3 interlock, and controller is occurred, and the probability of misoperation drops to 0, and effectively protect to greatest extent equipment, i.e. the safe operation of proterctive equipment, make again simple to operate clear.
As preferably, described transmission mechanism comprises the reduction box be connected with three-phase alternating-current motor, and described distance detection module is be arranged on pulse transducer on reduction box input shaft or output shaft or encoder.Power shaft or output shaft rotation certain angle, pulse transducer exports a trigger impulse, and CPU calculates the displacement of timber clamp system according to pulse number.
As preferably, described controller also comprises alarm module, and described alarm module is electrically connected with CPU.When CPU does not receive the output signal of distance detection module, CPU judging distance detection module fault or connection cable fault, central processing unit controls alarm module sends warning.
As preferably, being provided with bottom described proximity switch can along the travel mechanism of guide rail movement.Staff can adjust the position of proximity switch as required by travel mechanism, and the proximity switch stored in corresponding adjustment CPU sends timber clamp system position corresponding to signal.
As preferably, described controller also comprises wireless communication module, and described wireless communication module is electrically connected with CPU.Staff, by hand-held mobile terminal and wireless communication module radio communication, to controller sending controling instruction, realizes Long-distance Control.
As preferably, described controller also comprises memory cell and emergency supply circuit, described emergency supply circuit comprises resistance R, diode D and farad capacitor C, described resistance R one end is connected with the cathodic electricity of CPU, power module and diode D, the resistance R other end is electrically connected with the anode of diode D and the positive pole of farad capacitor C, the minus earth of farad capacitor C, described memory cell is electrically connected with CPU.When the unexpected power-off of power module, farad capacitor C continues power supply to CPU, enables CPU be stored in memory cell by current data, prevents power down from causing loss of data.
The beneficial effects of the utility model are: (1) by being arranged on the position of the proximity switch verification timber clamp system of ad-hoc location on guide rail, thus determines timber surplus size radially, reduces error, is conducive to the cutting accurately controlling residue timber.(2) contactor KM1, contactor KM2 and contactor KM3 interlock, and controller is occurred, and the probability of misoperation drops to 0.(3) when the unexpected power-off of power module, emergency supply circuit continues power supply to CPU, enables CPU be stored in memory cell by current data, prevents power down from causing loss of data.(4) utilize pulse transducer or encoder to adjust the distance to detect, and utilize rational algorithm that control accuracy is improved.(5) significantly reduce the fault rate of equipment, provide fault alarm and protection, improve the security of equipment.
Accompanying drawing explanation
Fig. 1 is that a kind of circuit theory of the present utility model connects block diagram;
Fig. 2 is the circuit theory diagrams of drive circuit of the present utility model;
Fig. 3 is the circuit theory diagrams of emergency supply circuit of the present utility model.
In figure: 1, controller, 2, driving mechanism, 3, distance detection module, 4, proximity switch, 5, CPU, 6, power module, 7, display screen, 8, button group, 9, three phase alternating current motor, 10, alarm module, 11, wireless communication module, 12, memory cell, 13, emergency supply circuit, 14, rectifier, 15, drive circuit.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of slabber control system of the present embodiment, slabber is the MJ3215B model slabber that Nantong Mao Yi lathe Co., Ltd produces, comprise the roadster railway that arranges along the longitudinal direction and can along the sport car of roadster railway movement, sport car be provided with arrange in left-right direction guide rail, can along the timber clamp system of guide rail movement and the driving mechanism 2 driving the movement of timber clamp system.
As shown in Figure 1, slabber control system comprises controller 1, the distance detection module 3 detecting timber clamp system displacement and the proximity switch 4 be arranged on guide rail, controller 1 comprises CPU 5, power module 6, display screen 7, button group 8, alarm module 10 and wireless communication module 11, and CPU 5 is electrically connected with driving mechanism 2, distance detection module 3, proximity switch 4, power module 6, display screen 7, button group 8, alarm module 10 and wireless communication module 11 respectively.
During work, staff, by timber clamp system clamping timber, then to be transmitted control signal this CPU 5 by button group 8.CPU 5 drives timber clamp system to move left and right on guide rail by driving mechanism 2, thus adjustment timber is sawed lower size, and after timber is adjusted to position, CPU 5 controls timber clamp system and stops movement.Then, staff starts sport car work, and sport car moves forward and backward, under timber is sawed by saw blade.
When timber clamp system moves, distance detection module 3 detects the displacement of timber clamp system, and being sent to CPU 5, CPU 5 obtains the radially cut size of timber according to the displacement of timber clamp system, thus calculates timber surplus size radially.When timber clamp system moves to proximity switch 4 place, proximity switch 4 sends triggering signal to CPU 5, the displacement of timber clamp system is modified to preset value by CPU 5, thus accurately calculate timber surplus size radially, reduce error, be conducive to the cutting accurately controlling residue timber.
When CPU 5 does not receive the output signal of distance detection module 3, CPU 5 judging distance detection module 3 fault or connection cable fault, CPU 5 controls alarm module 10 and sends warning.Staff, by hand-held mobile terminal and wireless communication module 11 radio communication, to controller 1 sending controling instruction, realizes Long-distance Control.
Driving mechanism 2 comprises three-phase alternating-current motor 9 and transmission mechanism, three-phase alternating-current motor 9 is connected with timber clamp system by transmission mechanism, controller 1 also comprises drive circuit 15, as shown in Figure 2, drive circuit 15 comprises air switch QS1, air switch QS2, rectifier 14, contactor KM1, contactor KM2 and contactor KM3, the first input end of air switch QS1 and the A of three-phase alternating current are electrically connected, second input of air switch QS1 and the B of three-phase alternating current are electrically connected, 3rd input of air switch QS1 and the C of three-phase alternating current are electrically connected, first output of air switch QS1 is electrically connected with first normally opened contact switch one end of first normally opened contact switch one end of contactor KM1 and contactor KM2, second output of air switch QS1 is electrically connected with second normally opened contact switch one end of second normally opened contact switch one end of contactor KM1 and contactor KM2, 3rd output of air switch QS1 is electrically connected with the 3rd normally opened contact switch one end of the 3rd normally opened contact switch one end of contactor KM1 and contactor KM2, the first normally opened contact switch other end of contactor KM1 is electrically connected with the 3rd normally opened contact switch other end of contactor KM2 and the U phase winding terminal of three-phase alternating-current motor 9, the second normally opened contact switch other end of contactor KM1 is electrically connected with the second normally opened contact switch other end of contactor KM2 and the V phase winding terminal of three-phase alternating-current motor 9, the 3rd normally opened contact switch other end of contactor KM1 is electrically connected with the first normally opened contact switch other end of contactor KM2 and the W phase winding terminal of three-phase alternating-current motor 9, two inputs of air switch QS2 are electrically connected with the C phase of three-phase alternating current and zero line respectively, two outputs of air switch QS2 are electrically connected with two inputs of rectifier 14, two outputs of rectifier 14 are electrically connected with first normally opened contact switch one end of contactor KM3 and second normally opened contact switch one end respectively, the first normally opened contact switch other end of contactor KM3 is electrically connected with the V phase winding terminal of three-phase alternating-current motor 9, the second normally opened contact switch other end of contactor KM3 is electrically connected with the W phase winding terminal of three-phase alternating-current motor 9.First output of CPU 5 is electrically connected with the first end of contactor KM1 coil by the first normally-closed contact switch of contactor KM2, second end of contactor KM1 coil passes through the first normally-closed contact switch ground connection of contactor KM3, second output of CPU 5 is electrically connected with the first end of contactor KM2 coil by the first normally-closed contact switch of contactor KM1, second end of contactor KM2 coil is electrically connected with the second end of contactor KM1 coil, 3rd output of CPU 5 is electrically connected with the first end of contactor KM3 coil by the second normally-closed contact switch of contactor KM1 and the second normally-closed contact switch of contactor KM2, second end ground connection of contactor KM3 coil.
CPU 5 controls the rotating of three-phase alternating-current motor 9 by contactor KM1 and contactor KM2, thus controls moving left and right of timber clamp system, controls three-phase alternating-current motor 9 carry out dynamic braking by contactor KM3.Contactor KM1, contactor KM2 and contactor KM3 interlock; prevent the fault of contactor itself cause problem (as certain contactor because contact scorification together; cause when can not correctly be separated); effectively equipment is protected to greatest extent; the i.e. safe operation of proterctive equipment, make again operation and wiring simple and clear.
Button group 8 comprises forward key, Reverse keys, automatically forward key and ten digital keys.After pressing automatic forward key; CPU 5 controls timber clamp system and moves a certain distance; when close to target location, control contactor KM1, contactor KM2 and contactor KM3 all power-off, three-phase alternating-current motor 9 relies on free-wheel; timber clamp system inertia is driven to move to target location; then relay K M3 energising, three-phase alternating-current motor 9 dynamic braking, makes accuracy improve; and available protecting contactor, prevents arc short circuit from causing fault.Corresponding preset size is set can to ten digital keys, is convenient to change timber cut lengths.The size that ten digital keys can corresponding pre-set, also provides one to input size temporarily, and these settings all provide drilling depth to control and remaining chi controls two kinds of functions.Note: drilling depth controls: when being set to 50mm, equipment is toward the distance moving forward to 50mm swage set, and the wood finished product cut down is 50mm; Remaining chi controls: when being set to 50mm, and equipment, toward moving forward to residue 50mm, equipment stays and is of a size of 50mm.
Transmission mechanism comprises the reduction box be connected with three-phase alternating-current motor 9, and distance detection module is be arranged on the pulse transducer on reduction box input shaft or output shaft.Output shaft rotation certain angle, pulse transducer exports a trigger impulse, and CPU 5 calculates the displacement of timber clamp system according to pulse number, and proximity switch 4 can revise the pulse accumulation error caused because of reasons such as interference.
Being provided with bottom proximity switch 4 can along the travel mechanism of guide rail movement.Staff can adjust the position of proximity switch 4 as required by travel mechanism, and the proximity switch 4 stored in corresponding adjustment CPU 5 sends timber clamp system position corresponding to signal.
Controller 1 also comprises memory cell 12 and emergency supply circuit 13, as shown in Figure 3, emergency supply circuit 13 comprises resistance R, diode D and farad capacitor C, resistance R one end is connected with the cathodic electricity of CPU 5, power module 6 and diode D, the resistance R other end is electrically connected with the anode of diode D and the positive pole of farad capacitor C, the minus earth of farad capacitor C, memory cell 12 is electrically connected with CPU 5.When power module 6 power-off suddenly, farad capacitor C continues power supply to CPU 5, current data can be stored in memory cell 12 by CPU 5, prevent power down from causing loss of data.
Claims (8)
1. a slabber control system, described slabber comprises the roadster railway that arranges along the longitudinal direction and can along the sport car of roadster railway movement, described sport car is provided with the guide rail arranged in left-right direction, can along the timber clamp system of guide rail movement and the driving mechanism (2) driving the movement of timber clamp system, it is characterized in that: comprise controller (1), the distance detection module (3) detecting timber clamp system displacement and the proximity switch (4) be arranged on guide rail, described controller (1) comprises CPU (5), power module (6), display screen (7) and button group (8), described CPU (5) respectively with driving mechanism (2), distance detection module (3), proximity switch (4), power module (6), display screen (7) and button group (8) electrical connection.
2. a kind of slabber control system according to claim 1, it is characterized in that: described driving mechanism (2) comprises three-phase alternating-current motor (9) and transmission mechanism, described three-phase alternating-current motor (9) is connected with timber clamp system by transmission mechanism, described controller (1) also comprises drive circuit (15), described drive circuit (15) comprises air switch QS1, air switch QS2, rectifier (14), contactor KM1, contactor KM2 and contactor KM3, the first input end of air switch QS1 and the A of three-phase alternating current are electrically connected, second input of air switch QS1 and the B of three-phase alternating current are electrically connected, 3rd input of air switch QS1 and the C of three-phase alternating current are electrically connected, first output of air switch QS1 is electrically connected with first normally opened contact switch one end of first normally opened contact switch one end of contactor KM1 and contactor KM2, second output of air switch QS1 is electrically connected with second normally opened contact switch one end of second normally opened contact switch one end of contactor KM1 and contactor KM2,3rd output of air switch QS1 is electrically connected with the 3rd normally opened contact switch one end of the 3rd normally opened contact switch one end of contactor KM1 and contactor KM2, the first normally opened contact switch other end of contactor KM1 is electrically connected with the 3rd normally opened contact switch other end of contactor KM2 and the U phase winding terminal of three-phase alternating-current motor (9), the second normally opened contact switch other end of contactor KM1 is electrically connected with the second normally opened contact switch other end of contactor KM2 and the V phase winding terminal of three-phase alternating-current motor (9), the 3rd normally opened contact switch other end of contactor KM1 is electrically connected with the first normally opened contact switch other end of contactor KM2 and the W phase winding terminal of three-phase alternating-current motor (9), two inputs of air switch QS2 are electrically connected with the C phase of three-phase alternating current and zero line respectively, two outputs of air switch QS2 are electrically connected with two inputs of rectifier (14), two outputs of rectifier (14) are electrically connected with first normally opened contact switch one end of contactor KM3 and second normally opened contact switch one end respectively, the first normally opened contact switch other end of contactor KM3 is electrically connected with the V phase winding terminal of three-phase alternating-current motor (9), the second normally opened contact switch other end of contactor KM3 is electrically connected with the W phase winding terminal of three-phase alternating-current motor (9), the first end of contactor KM1 coil, the first end of contactor KM2 coil and the first end of contactor KM3 coil are electrically connected with CPU (5) respectively, second end of contactor KM1 coil, second end of contactor KM2 coil and the second end all ground connection of contactor KM3 coil.
3. a kind of slabber control system according to claim 2, it is characterized in that: the first output of described CPU (5) is electrically connected with the first end of contactor KM1 coil by the first normally-closed contact switch of contactor KM2, second end of contactor KM1 coil passes through the first normally-closed contact switch ground connection of contactor KM3, second output of CPU (5) is electrically connected with the first end of contactor KM2 coil by the first normally-closed contact switch of contactor KM1, second end of contactor KM2 coil is electrically connected with the second end of contactor KM1 coil, 3rd output of CPU (5) is electrically connected with the first end of contactor KM3 coil by the second normally-closed contact switch of contactor KM1 and the second normally-closed contact switch of contactor KM2, second end ground connection of contactor KM3 coil.
4. a kind of slabber control system according to Claims 2 or 3, it is characterized in that: described transmission mechanism comprises the reduction box be connected with three-phase alternating-current motor (9), described distance detection module (3) is for being arranged on pulse transducer on reduction box input shaft or output shaft or encoder.
5. a kind of slabber control system according to claim 1 or 2 or 3, is characterized in that: described controller (1) also comprises alarm module (10), and described alarm module (10) is electrically connected with CPU (5).
6. a kind of slabber control system according to claim 1 or 2 or 3, is characterized in that: described proximity switch (4) bottom is provided with can along the travel mechanism of guide rail movement.
7. a kind of slabber control system according to claim 1 or 2 or 3, is characterized in that: described controller (1) also comprises wireless communication module (11), and described wireless communication module (11) is electrically connected with CPU (5).
8. a kind of slabber control system according to claim 1 or 2 or 3, it is characterized in that: described controller (1) also comprises memory cell (12) and emergency supply circuit (13), described emergency supply circuit (13) comprises resistance R, diode D and farad capacitor C, described resistance R one end and CPU (5), power module (6) is connected with the cathodic electricity of diode D, the resistance R other end is electrically connected with the anode of diode D and the positive pole of farad capacitor C, the minus earth of farad capacitor C, described memory cell (12) is electrically connected with CPU (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420855527.8U CN204382439U (en) | 2014-12-30 | 2014-12-30 | A kind of slabber control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420855527.8U CN204382439U (en) | 2014-12-30 | 2014-12-30 | A kind of slabber control system |
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| Publication Number | Publication Date |
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| CN204382439U true CN204382439U (en) | 2015-06-10 |
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| CN201420855527.8U Expired - Fee Related CN204382439U (en) | 2014-12-30 | 2014-12-30 | A kind of slabber control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182228A (en) * | 2016-07-22 | 2016-12-07 | 四川省青城机械有限公司 | A kind of numerical control tenon milling machine system and operational approach thereof |
-
2014
- 2014-12-30 CN CN201420855527.8U patent/CN204382439U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182228A (en) * | 2016-07-22 | 2016-12-07 | 四川省青城机械有限公司 | A kind of numerical control tenon milling machine system and operational approach thereof |
| CN106182228B (en) * | 2016-07-22 | 2018-06-15 | 四川省青城机械有限公司 | A kind of numerical control tenon milling machine system and its operating method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 |