CN2419615Y - Constant contact pressure controller - Google Patents
Constant contact pressure controller Download PDFInfo
- Publication number
- CN2419615Y CN2419615Y CN 00209249 CN00209249U CN2419615Y CN 2419615 Y CN2419615 Y CN 2419615Y CN 00209249 CN00209249 CN 00209249 CN 00209249 U CN00209249 U CN 00209249U CN 2419615 Y CN2419615 Y CN 2419615Y
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- CN
- China
- Prior art keywords
- depression bar
- guide pin
- pin bushing
- contact pressure
- motor
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a constant contact pressure controller comprising a pressure position signal sensing unit and a drive unit, wherein, the driving unit comprises a driving mechanism, a motor and a motor control unit; the pressure position signal sensing unit comprises a pressure bar 1, a pressure spring fixed to one end of the pressure bar 1 and a pressure bar position sensor 3. The position sensor 3 inputs position signals of the pressure bar 1 to the motor control unit, so that the driving mechanism is driven via the motor 6, so that the pressure bar 1 is driven to move via the driving mechanism. The utility model has the advantages of simple structure and easy operation, and can be used for machining and measuring fields.
Description
The utility model relates to machining and the fields of measurement that contact pressure is had requirement, especially relates to the device of the constant contact pressure of a kind of may command.
In machining with in measuring, need the his-and-hers watches surface contact pressure to control accurately sometimes.Be the requisite operation together that many moulds are produced as mould shape mirror polish, because it is surface, shape chamber mostly is three-dimension curved surface, complex-shaped, though the ultrasonic polishing device is arranged, but effect does not often reach requirement, and therefore for the mould of having relatively high expectations, polishing is many to be finished with manual.For mechanical buffing, reach the ideal uniform effect, it is necessary keeping constant polish pressure.In the prior art, the mode of control surface contact pressure is by pneumatic or hydraulic-driven.The pneumatic bigger shortcoming of pneumatic supply noise that exists, hydraulic-driven then exists the problem of leakage pollution.
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provides a kind of simple in structure, the constant contact pressure control device that precision is high.
The purpose of this utility model is to realize like this, a kind of constant contact pressure control device, comprise pressure position signal sensing element and driver element, described driver element comprises gear train, motor and motor control unit, it is characterized in that, described pressure position signal sensing element comprises depression bar, is fixed on the pressure spring and the depression bar position transducer of depression bar one end; Described position transducer by the motor-driven gear train, moves the position signalling input motor control unit of depression bar thereby drive depression bar by gear train.
In elastic limit, because the decrement and the contact pressure of pressure spring are linear, therefore, contact pressure can be converted into the decrement of spring and the position of depression bar, and realize accurately controlling the purpose of contact pressure by the position of control depression bar.
Implement constant contact pressure control device of the present utility model, utilize pressure spring and position transducer accurately to predict contact pressure, and the position by the driving mechanisms control depression bar, thereby reach the purpose that keeps constant contact pressure, simple in structure, operation can be widely used in machining and fields of measurement easily.
Below in conjunction with drawings and Examples, further specify structure of the present utility model and characteristics, in the accompanying drawing:
Fig. 1 is the structural representation of an embodiment of the constant contact pressure control device of the utility model;
Fig. 2 is the part enlarged diagram of constant contact pressure control device shown in Figure 1.
As depicted in figs. 1 and 2, in an embodiment of the present utility model, constant contact pressure control device comprises pressure position signal sensing element and driver element.
Pressure position signal sensing element comprises depression bar 1, depression bar guide pin bushing 2, pressure spring 4 and high precision depression bar position transducer 3.Depression bar guide pin bushing 2 is a upper end closed, the cylindrical cavity of lower ending opening.Depression bar 1, pressure spring 4 and high precision depression bar position transducer 3 all are arranged on the inside of depression bar guide pin bushing 2.Wherein, the upper end of pressure spring 4 is fixed on the interior upper end of depression bar guide pin bushing 2, and the upper end of the lower end of pressure spring 4 and depression bar 1 fixes; The lower end snail of depression bar guide pin bushing 2 is provided with plug 21, and plug 21 is provided with and is fit to the center pit 22 that depression bar 1 passes, and center pit 22 inwalls are provided with linear bearing so that depression bar 1 along Z to slip.Depression bar 1 lower end head is installed rubbing head and is used for piece surface is polished.Position transducer 3 adopts high-precision optical electron chi (commodity spare), electronic ruler comprises fixed part and motion parts, motion parts wherein is fixedly mounted on the depression bar 1, fixed part is fixedly mounted on the inwall of depression bar guide pin bushing 2, like this, just can accurately predict the displacement situation of depression bar 1 by position transducer 3 with respect to depression bar guide pin bushing 2.
Driver element comprises nut-screw kinematic pair, motor 6 and motor control unit 7.Motor 6 adopts stepper motor, be fixedly mounted on the frame, the screw rod 51 of the rotating shaft of motor 6 and nut-screw kinematic pair fixes, the nut 52 of nut-screw kinematic pair fixes with the outer upper end of depression bar guide pin bushing 2, and the outer wall of depression bar guide pin bushing 2 is provided with vertical slot, matches with feather key 8 on being fixed on frame, like this, when the screw rod 51 on being fixed on motor 6 rotates,, depression bar guide pin bushing 2 is moved up and down by the gearing of nut-screw pair and the guide effect of feather key 8.
Principle of work of the present utility model is: depression bar 1 is inside compression spring 4 under the effect of contact pressure F, and position transducer 3 is measured the position of depression bar 1, thereby converses decrement and axial (vertical direction) contact pressure F of spring.When contact pressure met setting value, motor 6 was not worked; When contact pressure during greater than (or less than) setting value, position transducer 3 provides the variable signal of position, give electric-motor drive unit 7 with this signal feedback, motor 6 by nut-screw pair drive pressure position signal sensing element upwards (or downwards) move, thereby make contact pressure return to setting value.
In use, the rotation rubbing head is fixed on the bottom of depression bar 1, the utility model is installed on the frame that two-dimensional motion (X, Y) workbench is housed, make depression bar 1 parallel with the Z axle.Polished part is placed on the workbench, set contact pressure between depression bar 1 and the polished part, and converse the output valve of position transducer 3 correspondences according to the skin hardness of part.Start stepper motor 6, drive pressure rod guidance cover 2 and depression bar 1 move down, increase along with the contact pressure between rubbing head and the polished part, depression bar 1 moves up with respect to depression bar guide pin bushing 2, the pressure spring 4 on depression bar 1 top is compressed, position transducer 3 provides the relative position of depression bar 1, when the output valve of position transducer 3 reaches setting value, and the polishing beginning.The startup workbench drives polished part and makes X, the Y direction moves, when depression bar 1 moves up and down along with the height change of polished part, position transducer 3 provides the position output signal of depression bar 1, as when piece surface raises gradually, depression bar 1 is caused to move upwardly with respect to depression bar guide pin bushing 2, pressure spring 4 is compressed, position transducer 3 provides the new position signalling of depression bar 1 with respect to depression bar guide pin bushing 2, this output valve and setting value are compared, draw position deviation value △ X, this deviate is fed back to motor control unit 7, the action of control step motor 6, driving depression bar guide pin bushing 2 moves up, make depression bar 1 arrive setting value with respect to the location restore of depression bar guide pin bushing 2, position deviation returns to zero, that is amount of spring compression returns to setting value, can keep the axial contact pressure between depression bar 1 and the polished part constant, thereby realize the high precision polishing of piece surface.
Constant contact pressure control device of the present utility model can also be used for the field of the accurate control of other needs contact pressures such as three-dimensional measurement.When being used for three-dimensional measurement, depression bar lower end head is installed smooth bulb, to reduce the friction force between depression bar and the detected element.And in order to shorten the response time to external force, depression bar can adopt the lightweight organic material to make.
The Z of the utility model device is big to measurement range, measuring accuracy is high, can satisfy the request for utilization of industries such as Mould Machining and measurement well.
Claims (6)
1. constant contact pressure control device, comprise pressure position signal sensing element and driver element, described driver element comprises gear train, motor (6) and motor control unit (7), it is characterized in that, described pressure position signal sensing element comprises depression bar (1), be fixed on the pressure spring (4) and the depression bar position transducer (3) of depression bar (1) one end; Described position transducer (3) by motor (6) drive transmission device, moves the position signalling input motor control unit (7) of depression bar (1) thereby drive depression bar (1) by gear train.
2. constant contact pressure control device according to claim 1, it is characterized in that, described pressure position signal sensing element also comprises depression bar guide pin bushing (2), and described depression bar (1), pressure spring (4) and depression bar position transducer (3) all are arranged on the inside of depression bar guide pin bushing (2); The upper end of described pressure spring (4) is fixed on the interior upper end of depression bar guide pin bushing (2), and the upper end of the lower end of pressure spring (4) and depression bar (1) fixes.
3. constant contact pressure control device according to claim 2, it is characterized in that, described depression bar guide pin bushing (2) is a upper end closed, the cylindrical cavity of lower ending opening, the lower end snail of depression bar guide pin bushing (2) is provided with plug (21), plug (21) is provided with the center pit (22) that suitable depression bar (1) passes, and center pit (22) inwall is provided with linear bearing.
4. constant contact pressure control device according to claim 1 and 2, it is characterized in that, described depression bar position transducer (3) adopts the optical electron chi, the motion parts of described electronic ruler is fixedly mounted on the depression bar (1), and the fixed part of electronic ruler is fixedly mounted on the inwall of depression bar guide pin bushing (2).
5. constant contact pressure control device according to claim 1 and 2 is characterized in that the gear train of described driver element is the nut-screw kinematic pair, and motor (6) adopts stepper motor; The screw rod (51) of the rotating shaft of motor (6) and described nut-screw kinematic pair fixes, and the nut of described nut-screw kinematic pair (52) fixes with the outer upper end of depression bar guide pin bushing (2).
6. constant contact pressure control device according to claim 5 is characterized in that the outer wall of described depression bar guide pin bushing (2) is provided with vertical slot, matches with feather key (8) on being fixed on frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209249 CN2419615Y (en) | 2000-04-14 | 2000-04-14 | Constant contact pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209249 CN2419615Y (en) | 2000-04-14 | 2000-04-14 | Constant contact pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419615Y true CN2419615Y (en) | 2001-02-14 |
Family
ID=33576411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209249 Expired - Fee Related CN2419615Y (en) | 2000-04-14 | 2000-04-14 | Constant contact pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419615Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197701A (en) * | 2013-02-05 | 2013-07-10 | 太原市精微测控技术有限公司 | Pressure controller |
| CN104802150A (en) * | 2015-05-11 | 2015-07-29 | 爱佩仪中测（成都）精密仪器有限公司 | Automatic scriber and application method thereof |
| CN107928669A (en) * | 2017-11-06 | 2018-04-20 | 上海道生医疗科技有限公司 | Impedance of point detection method and hand-held impedance of point detector |
| CN108918288A (en) * | 2018-07-23 | 2018-11-30 | 镇江立达纤维工业有限责任公司 | A kind of panel stiffness detection device |
| CN109419127A (en) * | 2017-08-27 | 2019-03-05 | 李昊男 | A kind of school bag with automatic reminding function |
| CN111381614A (en) * | 2020-03-26 | 2020-07-07 | 杭州汇健科技有限公司 | Pressure micro-control device for in-situ collection of molecules on surface of sample, and operation method and use method thereof |
| CN115816338A (en) * | 2023-01-09 | 2023-03-21 | 无锡万奈特测量设备有限公司 | Multi-point automatic measurement positioning equipment for automobile shock absorption tower |
-
2000
- 2000-04-14 CN CN 00209249 patent/CN2419615Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197701A (en) * | 2013-02-05 | 2013-07-10 | 太原市精微测控技术有限公司 | Pressure controller |
| CN103197701B (en) * | 2013-02-05 | 2015-11-25 | 太原市精微测控技术有限公司 | A kind of pressure controller |
| CN104802150A (en) * | 2015-05-11 | 2015-07-29 | 爱佩仪中测（成都）精密仪器有限公司 | Automatic scriber and application method thereof |
| CN104802150B (en) * | 2015-05-11 | 2016-06-22 | 爱佩仪中测（成都）精密仪器有限公司 | Autoscore and application process thereof |
| CN109419127A (en) * | 2017-08-27 | 2019-03-05 | 李昊男 | A kind of school bag with automatic reminding function |
| CN107928669A (en) * | 2017-11-06 | 2018-04-20 | 上海道生医疗科技有限公司 | Impedance of point detection method and hand-held impedance of point detector |
| CN107928669B (en) * | 2017-11-06 | 2020-07-14 | 上海道生医疗科技有限公司 | Acupuncture point impedance detection method and handheld acupuncture point impedance detector |
| CN108918288A (en) * | 2018-07-23 | 2018-11-30 | 镇江立达纤维工业有限责任公司 | A kind of panel stiffness detection device |
| CN111381614A (en) * | 2020-03-26 | 2020-07-07 | 杭州汇健科技有限公司 | Pressure micro-control device for in-situ collection of molecules on surface of sample, and operation method and use method thereof |
| CN111381614B (en) * | 2020-03-26 | 2023-09-12 | 杭州汇健科技有限公司 | In-situ pressure acquisition micro-control device and control method thereof |
| CN115816338A (en) * | 2023-01-09 | 2023-03-21 | 无锡万奈特测量设备有限公司 | Multi-point automatic measurement positioning equipment for automobile shock absorption tower |
| CN115816338B (en) * | 2023-01-09 | 2023-05-02 | 无锡万奈特测量设备有限公司 | Multi-point automatic measuring and positioning equipment for automobile damping tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |