CN202388384U - Measurement control system of high-precision axle and bent axle main journal grinding machine - Google Patents
Measurement control system of high-precision axle and bent axle main journal grinding machine Download PDFInfo
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- CN202388384U CN202388384U CN 201120531337 CN201120531337U CN202388384U CN 202388384 U CN202388384 U CN 202388384U CN 201120531337 CN201120531337 CN 201120531337 CN 201120531337 U CN201120531337 U CN 201120531337U CN 202388384 U CN202388384 U CN 202388384U
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Abstract
The utility model relates to a measurement control system of a high-precision axle and a bent axle main journal grinding machine. The measurement control system comprises a decompression valve, an electric control speed-adjusting valve, a two-position four-way electromagnetic directional valve, a three-position four-way electromagnetic directional valve, an oil pump and a rocker arm, wherein an oil inlet of an oil cylinder of the rocker arm is connected with the oil pump through the three-position four-way electromagnetic directional valve, the two-position four-way electromagnetic directional valve and the decompression valve; and an oil outlet is connected with the electric control speed-adjusting valve through the three-position four-way electromagnetic directional valve. The electric control speed-adjusting valve is formed by connecting one two-position two-way electromagnetic directional valve in parallel to two ends of the speed-adjusting valve. The measurement control system enables the rocker arm to be stably moved up and down, and the positioning precision of a measurement frame is high so that the machining precision of a workpiece is improved; and the aim of stably moving the rocker arm up and down is achieved by combining high pressure and low pressure, and fast speeds and slow speeds. The speed is fast when the pressure is high and the speed is slow when the pressure is low, so that the auxiliary time for the measurement is shortened, the efficiency is improved and the requirements on the positioning precision of a measurement instrument are met; and the system is simple to operate and the workpiece can reach a high grinding precision.
Description
Technical field
The utility model relates to a kind of Measurement and Control System, is specifically related to the Measurement and Control System of a kind of high accuracy axle grinder, crankshaft journal grinding machine.
Background technology
Along with the development of present technology, also increasingly high to the dimension precision requirement of many grades of main bearing journal parts of the axletree wheel seat of grinding machine track traffic and automobile industry, traditional measurement control system is that table top is measured.Its shortcoming is for axle grinder, and it can produce interference; For many grades of crankshaft journal grinding machines, because clamping workpiece can only station of grinding, many grades of main bearing journals of grinding, have only adjustment constantly to measure oil cylinder in the position of table top, make troubles to adjustment, cause grinding efficiency low.Flourish along with industrial technology, people have higher requirement to machining accuracy and working (machining) efficiency, have produced the portal frame Measurement and Control System thus.Its structure is measuring and tool setting device is contained on the rocking arm, and the upset through rocking arm realizes tool setting and measurement to workpiece.
The impact that traditional portal frame Measurement and Control System advance and retreat produce up and down owing to rocking arm causes the measurement oil cylinder loosening; Directly cause measurement principle error (as shown in Figure 1); Thereby influence certainty of measurement, working (machining) efficiency is reduced, be difficult to satisfy the requirement of processing object.The Measurement and Control System of high accuracy axle grinder, crankshaft grinding machine has solved that above-mentioned grinding efficiency is low, the uncontrollability of grinding accuracy, and it complies with a direction of track traffic from now on and the development of automobile industry Digit Control Machine Tool.
Summary of the invention
The utility model is that a kind of machining accuracy and production efficiency height will be provided; The safe high accuracy axletree and the Measurement and Control System of crankshaft journal grinding machine, this system have machining accuracy and stability is high, operates simple and easy; Characteristics such as grinding efficiency is high, and is cheap for manufacturing cost.
For realizing above-mentioned purpose; The technical scheme of the utility model is: the Measurement and Control System of a kind of high accuracy axletree and crankshaft journal grinding machine; Comprise pressure-reducing valve, automatically controlled flow speed control valve, two-position four-way solenoid directional control valve, 3-position 4-way solenoid directional control valve, oil pump, rocking arm; Be characterized in: the oil-in of the oil cylinder of rocking arm is connected oil pump through 3-position 4-way solenoid directional control valve, two-position four-way solenoid directional control valve with pressure-reducing valve, and oil-out connects automatically controlled flow speed control valve through the 3-position 4-way solenoid directional control valve.
Automatically controlled flow speed control valve is made up of flow speed control valve two ends bi-bit bi-pass unidirectional electrical magnet valve of parallel connection.
The beneficial effect of the utility model is:
The utility model adopts the oil-in of rocking arm oil cylinder to be connected hydraulic pump through 3-position 4-way solenoid directional control valve, two-position four-way solenoid directional control valve with pressure-reducing valve, and oil-out connects automatically controlled flow speed control valve through the 3-position 4-way solenoid directional control valve.
Automatically controlled flow speed control valve is made up of flow speed control valve two ends bi-bit bi-pass unidirectional electrical magnet valve of parallel connection.Make rocking arm move up and down steadily, the measurement bay positioning accuracy is high and make the machining accuracy of workpiece be improved (as shown in Figure 2), has promptly improved the precision of grinding.
And reach rocking arm up and down purpose stably through high-low pressure and fast combination at a slow speed.High pressure fast, low pressure at a slow speed, so both shortened the non-cutting time of measuring, improved efficient, satisfied the requirement of amount appearance positioning accuracy again, this system operates simple and easy, workpiece can reach higher grinding accuracy.
The utility model energy-conservation is embodied in the workpiece grinding process because two-position four-way solenoid directional control valve and automatically controlled flow speed control valve are in power failure state, practiced thrift the energy consumption of system.In when outage, because the 3-position 4-way solenoid directional control valve is in meta, for the safety of this system provides effective safety guarantee.
Description of drawings
Fig. 1 is the impact that rocking arm produces up and down in the traditional portal frame Measurement and Control System and cause that to measure oil cylinder loosening, directly causes the sketch map of measurement principle error;
Fig. 2 be the rocking arm of the utility model move up and down steadily, certainty of measurement improves sketch map;
Fig. 3 is the Measurement and Control System schematic diagram of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Measurement and Control System as shown in Figure 3, that the high-precision grinding axletree of the utility model, main bearing journal part are used comprises pressure-reducing valve 1, automatically controlled flow speed control valve 2, two-position four-way solenoid directional control valve 3,3-position 4-way solenoid directional control valve 4, oil pump 5, rocking arm 6.
The oil-in of the oil cylinder of rocking arm 6 is connected oil pump 5 through 3-position 4-way solenoid directional control valve 4, two-position four-way solenoid directional control valve 3 with pressure-reducing valve 1, and oil-out connects automatically controlled flow speed control valve 2 through 3-position 4-way solenoid directional control valve 4.
Automatically controlled flow speed control valve 2 is made up of flow speed control valve two ends bi-bit bi-pass unidirectional electrical magnet valve of parallel connection.
The purpose of this Measurement and Control System is in order to obtain higher measurement and positioning precision, to obtain higher grinding accuracy with this.Oil pump 5 work, system's fuel feeding, hydraulic oil gets into rocking arm 6 oil cylinder rodless cavities through two-position four-way solenoid directional control valve position, 3 left side and position, 3-position 4-way solenoid directional control valve 4 left side, and the oil that this moment, oil cylinder got into is hydraulic oil; The rod chamber oil return, through automatically controlled flow speed control valve 2, this moment automatically controlled flow speed control valve 2 be in electricity condition, oil return is through position, a bi-bit bi-pass unidirectional electrical magnet valve left side, oil return fast; When hydraulic oil entering oil cylinder, oil cylinder piston moves, and piston rod stretches out, and it is downward to drive rocking arm 6 through linkage.Rocking arm 6 is run into the sender switch downwards, sender switch sender, and two-position four-way solenoid directional control valve 3 breaks off, pressure-reducing valve 1 works, and the oil that this moment, oil cylinder got into is low pressure oil.The oil cylinder oil return is through automatically controlled flow speed control valve 2, and this moment, automatically controlled flow speed control valve was in power failure state, and bi-bit bi-pass unidirectional electrical magnet valve is in right position, and flow speed control valve works.Realize the rocking arm high pressure fast, low pressure at a slow speed.In the workpiece grinding process, two-position four-way solenoid directional control valve 3 is in power failure state with automatically controlled flow speed control valve 2, has practiced thrift the energy consumption of system.Because the meta function of three position four-way directional control valve 4 is O types, can make system also can keep its original state under the powering-off state suddenly.
Native system has advantage efficiently.Adopt the Measurement and Control System of traditional portal frame; For fear of the phenomenons such as amount appearance biasing that cause in rocking arm 6 upper and lower two positions impacts owing to hypertonia, excessive velocities; Directly influence the machining accuracy of workpiece; Often adopt lower system oil pressure, cause rocking arm 6 not increase, be unable to come down, make the lathe can't operate as normal.And native system two-position four-way solenoid directional control valve 3 when initial start is in position, a left side, 3-position 4-way solenoid directional control valve 4 is in position, a left side, 2 work of automatically controlled flow speed control valve; System keeps high oil pressure, guarantees that rocking arm 6 has the higher speed of going down, when rocking arm 6 goes down to touch the sender switch; The sender switch is to two-position four-way solenoid directional control valve 3, automatically controlled flow speed control valve 2 senders; Make them be in power failure state, the hydraulic oil in the system is disconnected and changes into low pressure oil, and this moment, the flow speed control valve of automatically controlled flow speed control valve 2 worked; Guaranteed the stationarity of rocking arm 6 motions, the grinding accuracy of corresponding workpiece was improved when the measurement bay positioning accuracy was high.Therefore whole system can accomplish the action of rocking arm about in the of 6 in a short period of time, has improved grinding efficiency.
This Measurement and Control System energy-conservation is embodied in the workpiece grinding process because two-position four-way solenoid directional control valve 3 is in power failure state with automatically controlled flow speed control valve 2, practiced thrift the energy consumption of system.In when outage, because 3-position 4-way solenoid directional control valve 4 is in meta, for the safety of this system provides effective safety guarantee.
Claims (2)
1. the Measurement and Control System of high accuracy axletree and crankshaft journal grinding machine; Comprise pressure-reducing valve (1), automatically controlled flow speed control valve (2), two-position four-way solenoid directional control valve (3), 3-position 4-way solenoid directional control valve (4); Oil pump (5); rocking arm (6); it is characterized in that: the oil-in of the oil cylinder of said rocking arm (6) is connected oil pump (5) through 3-position 4-way solenoid directional control valve (4), two-position four-way solenoid directional control valve (3) with pressure-reducing valve (1), and oil-out connects automatically controlled flow speed control valve (2) through 3-position 4-way solenoid directional control valve (4).
2. according to the Measurement and Control System of said high accuracy axletree of claim 1 and crankshaft journal grinding machine, it is characterized in that: said automatically controlled flow speed control valve (2) is made up of flow speed control valve two ends bi-bit bi-pass unidirectional electrical magnet valve of parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120531337 CN202388384U (en) | 2011-12-19 | 2011-12-19 | Measurement control system of high-precision axle and bent axle main journal grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120531337 CN202388384U (en) | 2011-12-19 | 2011-12-19 | Measurement control system of high-precision axle and bent axle main journal grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388384U true CN202388384U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120531337 Expired - Fee Related CN202388384U (en) | 2011-12-19 | 2011-12-19 | Measurement control system of high-precision axle and bent axle main journal grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727099A (en) * | 2013-12-24 | 2014-04-16 | 浙江大学 | Pressure-flow whole-process-adaptive TBM (tunnel boring machine) propelling hydraulic system |
-
2011
- 2011-12-19 CN CN 201120531337 patent/CN202388384U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727099A (en) * | 2013-12-24 | 2014-04-16 | 浙江大学 | Pressure-flow whole-process-adaptive TBM (tunnel boring machine) propelling hydraulic system |
| CN103727099B (en) * | 2013-12-24 | 2016-02-17 | 浙江大学 | The TBM propulsion hydraulic system that pressure flow overall process adapts to |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20191219 |