CN202021497U - Hydraulic servo synchronous crossbeam balance device for numerically-controlled gantry plane boring and milling machine - Google Patents
Hydraulic servo synchronous crossbeam balance device for numerically-controlled gantry plane boring and milling machine Download PDFInfo
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- CN202021497U CN202021497U CN2010206303518U CN201020630351U CN202021497U CN 202021497 U CN202021497 U CN 202021497U CN 2010206303518 U CN2010206303518 U CN 2010206303518U CN 201020630351 U CN201020630351 U CN 201020630351U CN 202021497 U CN202021497 U CN 202021497U
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- crossbeam
- proportional valve
- output
- hydraulic servo
- balance device
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Abstract
Provided is a hydraulic servo synchronous crossbeam balance device for a numerically-controlled gantry plane boring and milling machine, belonging to the technological field of designing and manufacturing hydraulic synchronous crossbeam balance devices for plane boring and milling machines. The hydraulic servo synchronous crossbeam balance device comprises analog input and output modules, a proportioning valve control panel, an oil cylinder and a pressure sensor. When the hydraulic servo synchronous crossbeam balance device works, the actual position of a ram milling head on a crossbeam is timely read via the analog input module, and data is obtained, converted into a certain value according to a certain functional relation and then outputted to the analog output module. The output voltage of the analog output module serves as the given voltage of a PID control panel. Meanwhile, the change of a controlled hydraulic pressure is converted into a voltage signal by the pressure sensor and then is fed back to the PID control panel. The feedback signal is compared with an output signal via the PID control plate, and the difference between two voltage signals are processed and calculated, so as to control a proportional valve amplifier. The opening size of a proportional valve is adjusted through the output voltage of the proportional valve amplifier, realizing continuous automatic adjustment of the proportional valve, eliminating the pressure difference caused by movement of the ram milling head along the crossbeam and achieving timely adjustment of oil cylinder pressure. The crossbeam runs stably, thus guaranteeing the processing precision.
Description
Technical field
The utility model be born in the year of dragon the hydraulic pressure SEQ Design of device and the manufacturing technology field of a boring milling bed beam.
Background technology
Beam balance for plane milling and boring machine all is to adopt common hydraulic pressure sychronisation or two servo synchronous motor to realize at present.But because the biasing of the main shaft master motor that brings of ram frame for movement, gear-box etc., cause and align to the guide rail caused additional moment of setovering, thereby increased the load of W, caused balance quality not high, thereby caused the instability of W to beam balance to motor and ball-screw transmission.The balancing effect and the precision of crossbeam have been influenced.This structural design is when crossbeam descends, and pressure may produce fluctuation, and whole oil hydraulic system is in the adjustment state all the time.Pressure-reducing valve can make crossbeam Motor torque and electric current increase as regulating hypertonia, produce when making the crossbeam operation and creep, otherwise, the oil pressure that pressure-reducing valve is regulated is crossed when hanging down, when being stopped, the crossbeam operation produces overshoot phenomenon, the reaction speed and the pinpoint speed of motion also have difference and slow, thereby cause the system oscillation phenomenon.Influence positioning accuracy and quicken the leading screw wearing and tearing.
Summary of the invention
At above-mentioned situation, the purpose of this utility model provides a kind of automaticity height, can guarantee stable, the motor movement power of hydraulic system and the hydraulic servo SEQ device of hydro-cushion coupling, solves the problem that existing apparatus exists.
Structure of the present utility model is as shown in drawings: be made of analog input, output module, Proportional Valve-controlled making sheet, oil cylinder and pressure sensor.Analog input module is connected in analog output module, has a proportioning valve amplifier on the output of analog output module.Connect a Proportional Valve-controlled making sheet on the output of proportioning valve amplifier.The proportioning valve amplifier out of Proportional Valve-controlled making sheet connects oil cylinder.One pressure sensor is arranged at the bottom of oil cylinder.The output of pressure sensor connects the PID control panel on the analog output module.Analog input module and analog output module are arranged at outside the hydraulic control system, and PID control panel and proportioning valve amplifier are arranged in the Proportional Valve-controlled making sheet, and Proportional Valve-controlled making sheet is arranged in the hydraulic system.Pressure sensor is arranged at the oil cylinder bottom, and oil cylinder is arranged between crossbeam and the tie-beam.
Operation principle of the present utility model is: when the moving beam gantry boring and milling machine of numerical control is worked, read the physical location of ram milling head at crossbeam by analog input module in good time, draw data, and be converted to certain numerical value by certain functional relation.Output to analog output module.The output voltage of analog output module is given as the PID control panel.The variation of controlled hydraulic pressure simultaneously detects by pressure sensor and is converted to voltage signal, also feeds back to the PID control panel.The PID control panel is made comparisons feedback signal and output signal, the difference of two voltage signals is come control ratio valve amplifier through handling with computing, the openings of sizes of the output voltage resize ratio valve of proportioning valve amplifier, realize adjusting automatically continuously of proportioning valve, eliminate because the ram milling head moves the pressure difference value that causes along crossbeam, realize the in good time adjustment of oil cylinder working-pressure.Crossbeam is operated steadily, the inclined oversize phenomenon can not occur.Guaranteed that hydraulic system is stable.Thereby guaranteed machining accuracy.
Description of drawings
Accompanying drawing is the utility model structural representation
1-oil cylinder 2-Proportional Valve-controlled making sheet 3-proportioning valve amplifier 4-pressure sensor 5-analog input module 6-analog output module
Arrow is a device sense
The specific embodiment
Structure of the present utility model is as shown in drawings: be made of analog input output module, Proportional Valve-controlled making sheet, oil cylinder and pressure sensor.Analog input module 5 is connected in analog output module 6, has a proportioning valve amplifier 3 on the output of analog output module.Connect a Proportional Valve-controlled making sheet 2 on the output of proportioning valve amplifier.The output of Proportional Valve-controlled making sheet connects an oil cylinder 1.One pressure sensor 4 is arranged at the bottom of oil cylinder.
Claims (1)
1. beam gantry boring milling bed beam hydraulic servo SEQ device is moved in numerical control, it is characterized in that: analog input module (5) is connected in analog output module (6), have a proportioning valve amplifier (3) on the output of analog output module, connect a Proportional Valve-controlled making sheet (2) on the output of proportioning valve amplifier, the output of Proportional Valve-controlled making sheet connects an oil cylinder (1), and a pressure sensor (4) is arranged at the bottom of oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206303518U CN202021497U (en) | 2010-11-23 | 2010-11-23 | Hydraulic servo synchronous crossbeam balance device for numerically-controlled gantry plane boring and milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206303518U CN202021497U (en) | 2010-11-23 | 2010-11-23 | Hydraulic servo synchronous crossbeam balance device for numerically-controlled gantry plane boring and milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021497U true CN202021497U (en) | 2011-11-02 |
Family
ID=44846465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206303518U Expired - Lifetime CN202021497U (en) | 2010-11-23 | 2010-11-23 | Hydraulic servo synchronous crossbeam balance device for numerically-controlled gantry plane boring and milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202021497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481112A (en) * | 2013-09-26 | 2014-01-01 | 苏州江源精密机械有限公司 | Method for synchronously adjusting balance of transverse beam of numerical-control gantry machine tool with movable beam |
| CN112719478A (en) * | 2020-12-24 | 2021-04-30 | 清华大学 | PID parameter calculation method for reducing planetary roller screw thread grinding fluctuation |
-
2010
- 2010-11-23 CN CN2010206303518U patent/CN202021497U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481112A (en) * | 2013-09-26 | 2014-01-01 | 苏州江源精密机械有限公司 | Method for synchronously adjusting balance of transverse beam of numerical-control gantry machine tool with movable beam |
| CN112719478A (en) * | 2020-12-24 | 2021-04-30 | 清华大学 | PID parameter calculation method for reducing planetary roller screw thread grinding fluctuation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |