CN201146033Y - Control equipment for mounting screw on hardpan - Google Patents
Control equipment for mounting screw on hardpan Download PDFInfo
- Publication number
- CN201146033Y CN201146033Y CNU200720171569XU CN200720171569U CN201146033Y CN 201146033 Y CN201146033 Y CN 201146033Y CN U200720171569X U CNU200720171569X U CN U200720171569XU CN 200720171569 U CN200720171569 U CN 200720171569U CN 201146033 Y CN201146033 Y CN 201146033Y
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- China
- Prior art keywords
- hard disk
- electric screwdriver
- count
- control device
- stepper motor
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- Expired - Fee Related
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Abstract
The utility model discloses a control device for installing bolts on hardwares, comprising a driver, a driver controller connected with the driver, a driver counter connected with the signals of the driver controller, a hardware seat of hardwares, a stepping motor connected with the hardware set and a drive circuit of the stepping motor, wherein, the control device for installing bolts on hardwares further comprises a zero clearing device which is in pilot connection with the signals of the driver controller. As the control device for installing bolts on hardwares of the utility model is added with the zero clearing device which is in pilot connection with the signals of the driver controller, bad hardwares can be taken out when a hardware is unqualified caused by bolt deflection. The zero clearing of the driver counter by the zero clearing device guarantees that all hardwares conveyed to a next working procedure worktable are qualified hardwares and that the numerical value got by the driver controller and a supervisory control computer cannot be inconsistent, so that the processing time is reduced and the operation is more convenient.
Description
Technical field
The utility model relates to the hard disk processing technique field, in particular, relates to a kind of opertaing device that is used for mounting screw on hard disk.
Background technology
Need on hard disk, make the fastening hard disk of screw man-hour in that hard disk is added, by the opertaing device that is used for mounting screw on hard disk the process of hard disk be controlled, and the number that machines of current hard disk is added up supervision.
On process line, the number that each operation all can the pre-set screw that will beat, the workman gets to screw on the hard disk by electric screwdriver.The above-mentioned opertaing device that is used for mounting screw on hard disk comprises: the driving circuit that is used for each hard disk has been followed closely how many screws the electric screwdriver counter of counting and the supervisory computers, stepper motor and the stepper motors that are used to monitor the processing of having finished what hard disks that are connected with the electric screwdriver counter that be used for beating the electric screwdriver of screw, the electric screwdriver controller that is connected with electric screwdriver on hard disk, is connected with the electric screwdriver controller signals.Wherein, electric screwdriver is controlled by the electric screwdriver controller, and the electric screwdriver controller is by detecting the moment of getting screw of electric screwdriver, and whether sky is beaten can to detect electric screwdriver, and only when electric screwdriver did not have empty beating, the electric screwdriver controller sent a count information.The electric screwdriver counter that is connected with the electric screwdriver controller signals obtains above-mentioned count information; After the electric screwdriver counter obtains count information, return reset signal to the electric screwdriver controller, notice electric screwdriver controller control electric screwdriver resets, and plays next screw; Simultaneously, the count information that obtains is counted, when reaching the number of the pre-set screw that will beat, the electric screwdriver counter O reset, expression machines a hard disk; Supervisory computers is connected with the electric screwdriver counter signals, carry out the screw counting number with the electric screwdriver counter synchronisation, and the current hard disk number that has processed is carried out the hard disk counting number, when accumulative total count information reach this operation pre-set to beat the number of screw the time, current manufactured hard disk number adds 1, and the processing of a hard disk has been finished in expression; And after the electric screwdriver counter O reset, promptly send reset signal to supervisory computers this moment, zero clearing during the screw counting number information of same of the current accumulative total of supervisory computers.The driving circuit of stepper motor is controlled by a hand switch; Stepper motor links to each other with the hard disk seat of hard disk, after a hard disk machines, manually controls hand switch by the workman, and the driving circuit of control step motor, stepper motor drive the movable workbench of hard disk seat to next process.
In actual production process, above-mentionedly be used for that there is following problem in the opertaing device of mounting screw on hard disk:
1, the workman is by the electric screwdriver processing hard disk, and when electric screwdriver carries out sky when beating, the electric screwdriver controller can judge by detection moment, does not count; If do not have empty beating when the workman follows closely by the electric screwdriver oncomelania, and just screw is deflected, the electric screwdriver controller can not judge, and still notifies the normal counting of screw counting number part of electric screwdriver counter and supervisory computers, and the screw that deflect this moment is underproof.Still with the above-mentioned example that is operating as that needs four screws of processing: as second screw having been deflected when electric screwdriver, this moment, the electric screwdriver counter still was designated as " 2 ", and the hard disk of current processing is underproof, but the electric screwdriver counter is still normally counted, because this moment, the operator can not change the number of electric screwdriver counter meter, if directly underproof hard disk is taken out, process next hard disk, the electric screwdriver counter will continue counting since 3, after playing a screw again, the electric screwdriver counter is promptly counted full, and mistake appears in counting.And supervisory computers also will represent that another hard disk machines to the hard disk counting number partial carry that is used to calculate the current hard disk that has processed this moment, and data that obtain like this and the actual hard disk number that processes also are inconsistent.Even be not that each operation is all carried out the hard disk counting number by supervisory computers to manufactured hard disk in the current operation on the streamline that has, also have supervisory computers the Fully-pipelined hard disk of having finished all process steps processing is carried out the hard disk counting number, data that obtain like this and the actual hard disk number that processes also are inconsistent.Therefore, for the data that guarantee the hard disk number that has processed that supervisory control comuter obtains correct, the workman can not stop the continuation processing to current underproof hard disk, even the front has screw to deflect, the workman also must continue remaining screw is machined, and makes counter and supervisory control comuter normally to count; This underproof hard disk will be sent to next bar streamline, by the workman of next process underproof hard disk be picked out, prolong process time, cause unnecessary waste.
2, when the workman by the electric screwdriver processing hard disk, beaten the screw number be scheduled to when (as being four), electric screwdriver counter meter is completely after four, electric screwdriver counter automatic clear.Because electric screwdriver counter itself is not to the Stepping Motor Control function, must the workman manually press the hand switch on the driving circuit of stepper motor, be communicated with the power supply of stepper motor, the stepper motor running, the hard disk seat meter hard disk that drives on the operator's console moves, and is transformed into next station.Such design makes hard disk of the every processing of workman, all will manually press a hand switch, and operation inconvenience expends process time.
The utility model content
For overcoming above-mentioned defective, technical problem to be solved in the utility model provides and a kind ofly can reduce process time, the opertaing device that is used for mounting screw on hard disk more convenient to operate.
The purpose of this utility model is achieved through the following technical solutions:
A kind of opertaing device that is used at mounting screw on the hard disk: comprising: being used for beating on hard disk the electric screwdriver of screw, the electric screwdriver controller that is connected with electric screwdriver, being used for of being connected with the electric screwdriver controller signals has followed closely the electric screwdriver counter how many screws are counted, the hard disk seat of hard disk, the driving circuit of stepper motor that is connected with the hard disk seat and the stepper motor that is connected with stepper motor to each hard disk, wherein: the described opertaing device that is used for mounting screw on hard disk also comprises the zero clearing device, described zero clearing device and electric screwdriver counter signals control linkage.
On the said structure basis, wherein:
Described zero clearing device is connected with the driving circuit signal controlling of stepper motor.After such design makes that electric screwdriver deflects screw, after taking out underproof hard disk, with the electric screwdriver counter O reset in order to avoid when makeing mistakes, by stepper motor the hard disk seat of sky is transferred to next station, the workman operates next hard disk.
Described zero clearing device is a compound button, and one tunnel signal controlling connects the electric screwdriver counter, and another road signal connects the driving circuit of stepper motor.The zero clearing device is designed to compound button, makes the workman only need press this operation of compound button, can finish simultaneously to the electric screwdriver counter O reset with the hard disk seat and be transferred to these two operations of next station; It is convenient to operate.
A road of described compound button control electric screwdriver counter is connected to the power lead of electric screwdriver counter; Under the normal condition, it is normally off that compound button is connected to a road of electric screwdriver counter power lead; Be connected to stepper motor driving circuit a road be normally open.We force zero clearing by the power lead control electric screwdriver counter that cuts off the electric screwdriver counter.
The described opertaing device that is used for mounting screw on hard disk also comprises count control device, described count control device is connected with the electric screwdriver controller signals, be connected with the driving circuit signal of stepper motor, be used for when the screw number that each hard disk has been followed closely reaches preset value, the control step motor moves automatically; Automatic clear is prepared to count next time simultaneously.Such design can be after every normal process be finished a hard disk, the workman is without the manual operation stepper motor, automatically moved by count control device control step motor, the hard disk that has machined is transferred to next station, the workman continues to process next hard disk; Reduced workman's operation steps.
Described count control device comprises segment count and switching circuit portion, described segment count control linkage switching circuit portion, and the segment count of described count control device is connected with zero clearing device signal with described electric screwdriver controller respectively; The switching circuit portion of described count control device is connected with the driving circuit signal of stepper motor.After such design makes that electric screwdriver deflects screw, with the electric screwdriver counter O reset in order to avoid when makeing mistakes, the segment count of count control device is zero clearing simultaneously also, in order to avoid the segment count of count control device counting is made mistakes, switching circuit portion is carried out wrong control.
Described zero clearing device is a compound button, the segment count of one tunnel signal controlling connection count control device, and another road signal connects the driving circuit of stepper motor.The zero clearing device is designed to compound button, makes the workman only need press this operation of compound button, can finish simultaneously to the zero clearing of the segment count of count control device with the hard disk seat and be transferred to these two operations of next station; It is convenient to operate.
A road of described compound button control electric screwdriver counter is connected to the power lead of the segment count of count control device; Under the normal condition, compound button be connected to count control device the segment count power lead a road be normally off; Be connected to stepper motor driving circuit a road be normally open.We force zero clearing by the power lead control count control device that cuts off count control device.
A road of the driving circuit of control step motor is in parallel in the switching circuit portion of described count control device and the compound button, when the numerical value in the segment count of count control device reaches preset value, segment count sends and controls signal to switching circuit portion, and the control step motor moves automatically; When the numerical value in the segment count reaches preset value again behind the automatic clear, segment count sends and controls signal to switching circuit portion, and the control step motor is out of service.
Described switching circuit portion be with compound button in one tunnel relay switch in parallel of driving circuit of control step motor, when the numerical value in the segment count reached preset value, segment count sent and controls signal to relay switch with its closure; When the numerical value in the segment count reaches preset value again behind the automatic clear, segment count sends and controls signal to relay switch it is disconnected once more.
The utility model is because at the zero clearing device that is used on the opertaing device of mounting screw on the hard disk increasing with electric screwdriver counter signals control linkage, make and when the workman follows closely by the electric screwdriver oncomelania, screw is deflected, when causing the hard disk of current processing defective, can be by the zero clearing device with the electric screwdriver counter O reset, owing to can send reset signal automatically during the electric screwdriver counter O reset to supervisory control comuter, count information zero clearing simultaneously with the current accumulative total of supervisory control comuter, when supervisory control comuter is counted the current hard disk number that has processed, can ignore the hard disk that this breaks.Like this, in a single day the workman finds that current hard disk processing is defective, the hard disk that breaks can be taken out, simultaneously by zero clearing device zero clearing electric screwdriver counter, so just guaranteed that all hard disks that are sent to next operation worktable all are up-to-standard hard disks, and the numerical value that electric screwdriver counter and supervisory control comuter count to get inconsistent situation can not occur, has reduced process time, and it is convenient to operate.
Description of drawings
Fig. 1 is the structural representation that the utility model embodiment is used for the opertaing device of mounting screw on hard disk.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, a kind of opertaing device that is used for mounting screw on hard disk, comprise: being used for beating on hard disk the electric screwdriver of screw, the electric screwdriver controller that is connected with electric screwdriver, being used for of being connected with the electric screwdriver controller signals has followed closely the electric screwdriver counter how many screws are counted, has been promoted by stepper motor each hard disk, driving circuit, zero clearing device, the count control device of the stepper motor that be used to bear the hard disk seat of hard disk to be processed, the stepper motor that is connected with the hard disk seat, is connected with stepper motor; Wherein, the every stepping of stepper motor once, the hard disk seat that is about to next hard disk to be processed is pushed into Working position; Described zero clearing device and electric screwdriver counter signals control linkage, after making that electric screwdriver deflects screw, after taking out underproof hard disk, with the electric screwdriver counter O reset in order to avoid when makeing mistakes, by stepper motor the hard disk seat of sky is transferred to next station, the workman operates next hard disk.Described zero clearing device is connected with the driving circuit signal controlling of stepper motor; Described count control device is connected with the electric screwdriver controller signals, is connected with the driving circuit signal of stepper motor, is used for when the screw number that each hard disk has been followed closely reaches preset value, and the control step motor moves automatically.
Described count control device comprises segment count and switching circuit portion, described segment count control linkage switching circuit portion, and the segment count of described count control device is connected with zero clearing device signal with described electric screwdriver controller respectively; The switching circuit portion of described count control device is connected with the driving circuit signal of stepper motor.The signal input part of the segment count of count control device also arrives the signal output part of electric screwdriver controller together in company with the signal input part of electric screwdriver counter; The segment count of count control device is counted together with the electric screwdriver counter, also remember the value of setting when the segment count of count control device, such as 4 o'clock, the segment count of count control device sends the switching circuit portion that control signal is given count control device, the operation of notice stepper motor, the hard disk Workpiece transfer of accomplishing fluently is arrived next station, realize the automatic operation of stepper motor.Wherein, can to select model be that the single-chip microcomputer of AT89S51 is as master chip to the segment count of count control device.
Described zero clearing device is a compound button, comprises two-way up and down.The power supply of the segment count of set out on a journey the connection electric screwdriver counter and the count control device of compound button, the following road signal of compound button connects the driving circuit of the driving circuit stepper motor of stepper motor.Wherein descend switch place in the road to be parallel with switching circuit portion by the count control device of the segment count control of count control device, the i.e. relay switch that drives by the relay switch driving circuit; When electric screwdriver counter meter during to preset value (establishing preset value still is 4), then the counting of the segment count of count control device also reaches preset value, then the segment count of count control device sends control signal, driving by the relay switch driving circuit, the pilot relay switch closure, the power supply of connection stepper motor is by the driving circuit drive stepping motor work of stepper motor, drive the hard disk that processes by the hard disk seat and be sent to next station, realize transmitting automatically; When the numerical value in the segment count reaches preset value again behind the automatic clear, segment count sends and controls signal to relay switch it is disconnected once more, to carry out the processing of next hard disk.
The shell fragment of compound button is arranged between four contacts of two-way up and down, shell fragment has spring, under the normal condition, because the elastic force that makes progress of shell fragment lower spring makes shell fragment and two contacts of setting out on a journey keep in touch state, promptly connect the segment count of count control device and the power supply of electric screwdriver counter, normally count; After the workman finds have screw to deflect, then press compound button, take out the hard disk that breaks simultaneously, shell fragment leaves two contacts of setting out on a journey, disconnect the segment count of count control device and the power supply of electric screwdriver counter, the segment count and the electric screwdriver counter of count control device are forced zero clearing, simultaneously, shell fragment contacts with two contacts on following road, road circuit communication with stepper motor, by the work of the driving circuit drive stepping motor of stepper motor, the hard disk seat of sky is sent to next station, so just guaranteed that all hard disks that are sent to next operation worktable all are up-to-standard hard disks.
The zero clearing device is designed to compound button, makes the workman only need press this operation of compound button, can finish simultaneously to the electric screwdriver counter with to the zero clearing of the segment count of count control device with the hard disk seat of sky and be transferred to these two operations of next station; It is convenient to operate.
Described count control device is provided with light-emitting diode display, shows the numerical value of the current accumulative total of segment count on the described light-emitting diode display.Whether such design makes the workman add man-hour, can see the current screw number of having processed intuitively, can easierly tell the numerical value of counting and make mistakes.
The course of work of the present utility model is as follows:
If current operation need be played four screws at each hard disk, the workman gets to screw on the hard disk by electric screwdriver.
When the electric screwdriver controller detects the moment obtain less than preset value, promptly when the electric screwdriver sky is beaten, the electric screwdriver controller is given alerting signal of counter of electric screwdriver counter and count control device, and red led is bright, and the counter of count control device and electric screwdriver counter are not counted.
When detecting the moment that obtains, the electric screwdriver controller reaches preset value, promptly after what a screw electric screwdriver plays, the electric screwdriver controller is given pulse signal of segment count (P3.4 pin) of count control device, make the display counting of the segment count of count control device add 1, when accomplishing fluently the 4th screw, the count section branch of count control device shows 4, and the P3.0 pin of while by the segment count of count control device sends enabling signal, green indicating lamp is bright, and starter motor makes its operation simultaneously.
Every dozen of what a screws of electric screwdriver, send count signal by the electric screwdriver controller to the segment count of electric screwdriver counter and count control device, the segment count of electric screwdriver counter and count control device is counted simultaneously, and the light-emitting diode display on the count control device promptly shows the numerical value of the current accumulative total of segment count; Current operation or the count information of also reading in the electric screwdriver counter for the supervisory control comuter of total streamline are simultaneously counted synchronously;
Segment count numerical value totally full 4 when count control device, after promptly having finished the processing of current hard disk, the segment count of count control device transmits control signal to the switching circuit portion of count control device, driving by the relay switch driving circuit, the pilot relay switch closure, the power supply of connection stepper motor is by the driving circuit drive stepping motor work of stepper motor, drive the hard disk that processes by the hard disk seat and be sent to next station, realize transmitting automatically.Simultaneously, current operation or give the full 4 back carry counting systems of supervisory control comuter meter of total streamline, promptly partly add 1 counting to the hard disk counting number, the full 4 back zero clearings of the segment count meter of electric screwdriver counter and count control device, the electric screwdriver counter sends reset signal to supervisory control comuter, control the screw counting number part zero clearing of supervisory control comuter, carry out the screw counting number of next hard disk.
And work as electric screwdriver screw is deflected, when causing the hard disk of current processing defective, the workman takes out underproof hard disk, press combination switch, the disconnection of setting out on a journey, disconnect the segment count of count control device and the power supply of electric screwdriver counter, finish to the electric screwdriver counter with to the zero clearing of the segment count of count control device; Following road closure with one road circuit communication of stepper motor, is transferred to next station with the hard disk seat of sky.Owing under the shell fragment of combination switch spring is arranged, behind workman's shut-down operation combination switch, the combination switch closure of then will setting out on a journey automatically, be communicated with the segment count of count control device and the power supply of electric screwdriver counter, behind the segment count of count control device and the electric screwdriver counter electrification reset, show zero clearing, ready for counting next time; Following road disconnects, and stepper motor shuts down, to carry out the processing of next hard disk.
Selection about the segment count master chip of count control device, because the typical products of MCS-51 series monolithic has 8031,8051 and 8751 types, their function, internal logic are partly basic identical, pin is the same (40 pins) all, can exchange, different is that 8031 inside do not have program memory ROM, and there is the ROM of 4KB 8051 inside, and there is the ultraviolet light erasable electrically-programmable memory EPROM of 4KB 8751 inside.Not only because 51 a series monolithics but also new branch occurred, it is the AT89 series monolithic, it is the flash memory FLASH ROM with unique technique advantage that is utilized its exploitation by American ATMEL, add and develop 51 series monolithics of new generation, wherein the program of flash memory can be preserved 10 years, and can be erasable repeatedly 1000 times, make that update routine is very convenient repeatedly in the performance history of system, as long as programmable device (with program copy or be cured to equipment among the ROM) is arranged, computing machine and some debugging softwares just can carry out the artificial debugging program.And the increase major function has the two DPTR of SPI serial peripheral interface (can realize the serial download function) and " house dog " timing supervision device (being used for anti-interference anti-deadlock).So the segment count of our count control device selects AT89S51 type single-chip microcomputer as master chip.
The display of the segment count of count control device has been selected not only economy but also practical 7 sections charactrons demonstrations of common cathode (redness), display digit is made up of 8 light emitting diodes (LED) that respectively are strip, because this kind light-emitting diode display is those skilled in that art's a common practise, so do not repeat them here.
Adopt the opertaing device that is used for mounting screw on hard disk described in the utility model, make:
1, the workman is after deflecting screw, hard disk processing is defective, when the electric screwdriver counter to operation miscount takes place, can manually make the electric screwdriver counter O reset, underproof hard disk is taken out, can start simultaneously the motor of streamline, allow its empty hard disk seat be sent to next station, save cost, guarantee that each hard disk that processes that is sent to next station all is qualified, reduce the work load of follow-up flow process, improved work efficiency.
2, the workman can start the stepper motor of streamline automatically after normal process is finished a hard disk, has reduced the manual operation time, has improved efficient.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.As: switching circuit portion can be used relay switch, also can use other gate-controlled switch, disconnects with closed as long as it can be subjected to segment count to control it; The segment count of count control device can select model be the single-chip microcomputer of AT89S51 as master chip, also can select other as the single-chip microcomputer of models such as 8031,8051 or 8751 as master chip.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. opertaing device that is used at mounting screw on the hard disk: comprising: being used for beating on hard disk the electric screwdriver of screw, the electric screwdriver controller that is connected with electric screwdriver, being used for of being connected with the electric screwdriver controller signals has followed closely the electric screwdriver counter how many screws are counted, the hard disk seat of hard disk, the driving circuit of stepper motor that is connected with the hard disk seat and the stepper motor that is connected with stepper motor to each hard disk, it is characterized in that: the described opertaing device that is used for mounting screw on hard disk also comprises the zero clearing device, described zero clearing device and electric screwdriver counter signals control linkage.
2. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 1 is characterized in that: described zero clearing device is connected with the driving circuit signal controlling of stepper motor.
3. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 2 is characterized in that: described zero clearing device is a compound button, and one tunnel signal controlling connects the electric screwdriver counter, and another road signal connects the driving circuit of stepper motor.
4. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 3 is characterized in that: a road of described compound button control electric screwdriver counter is connected to the power lead of electric screwdriver counter; Under the normal condition, it is normally off that compound button is connected to a road of electric screwdriver counter power lead; Be connected to stepper motor driving circuit a road be normally open.
5. as any described a kind of opertaing device that is used for mounting screw on hard disk of claim 1～4, it is characterized in that: the described opertaing device that is used for mounting screw on hard disk also comprises count control device, described count control device is connected with the electric screwdriver controller signals, be connected with the driving circuit signal of stepper motor, be used for when the screw number that each hard disk has been followed closely reaches preset value, the control step motor moves automatically; Automatic clear is prepared to count next time simultaneously.
6. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 5, it is characterized in that: described count control device comprises segment count and switching circuit portion, described segment count control linkage switching circuit portion, the segment count of described count control device are connected with zero clearing device signal with described electric screwdriver controller respectively; The switching circuit portion of described count control device is connected with the driving circuit signal of stepper motor.
7. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 6, it is characterized in that: described zero clearing device is a compound button, the segment count of one tunnel signal controlling connection count control device, another road signal connects the driving circuit of stepper motor.
8. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 7 is characterized in that: a road of described compound button control electric screwdriver counter is connected to the power lead of the segment count of count control device; Under the normal condition, compound button be connected to count control device the segment count power lead a road be normally off; Be connected to stepper motor driving circuit a road be normally open.
9. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 7, it is characterized in that: a road of the driving circuit of control step motor is in parallel in the switching circuit portion of described count control device and the compound button, when the numerical value in the segment count of count control device reaches preset value, segment count sends and controls signal to switching circuit portion, and the control step motor moves automatically; When the numerical value in the segment count reaches preset value again behind the automatic clear, segment count sends and controls signal to switching circuit portion, and the control step motor is out of service.
10. a kind of opertaing device that is used for mounting screw on hard disk as claimed in claim 9, it is characterized in that: described switching circuit portion for compound button in one tunnel relay switch in parallel of driving circuit of control step motor, when the numerical value in the segment count reached preset value, segment count sent and controls signal to relay switch with its closure; When the numerical value in the segment count reaches preset value again behind the automatic clear, segment count sends and controls signal to relay switch it is disconnected once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720171569XU CN201146033Y (en) | 2007-12-19 | 2007-12-19 | Control equipment for mounting screw on hardpan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720171569XU CN201146033Y (en) | 2007-12-19 | 2007-12-19 | Control equipment for mounting screw on hardpan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146033Y true CN201146033Y (en) | 2008-11-05 |
Family
ID=40082915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720171569XU Expired - Fee Related CN201146033Y (en) | 2007-12-19 | 2007-12-19 | Control equipment for mounting screw on hardpan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146033Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009079958A1 (en) * | 2007-12-19 | 2009-07-02 | Shenzhen Excelstor Technology Ltd. | Control device for mounting screws on a hard disk |
| CN106707950A (en) * | 2016-12-12 | 2017-05-24 | 广东美的暖通设备有限公司 | Control system and control method for screw counting of electric appliance production line |
-
2007
- 2007-12-19 CN CNU200720171569XU patent/CN201146033Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009079958A1 (en) * | 2007-12-19 | 2009-07-02 | Shenzhen Excelstor Technology Ltd. | Control device for mounting screws on a hard disk |
| CN106707950A (en) * | 2016-12-12 | 2017-05-24 | 广东美的暖通设备有限公司 | Control system and control method for screw counting of electric appliance production line |
| CN106707950B (en) * | 2016-12-12 | 2019-05-31 | 广东美的暖通设备有限公司 | The control system and control method counted for electric appliance production line screw |
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