CN112059683B - Tool rest feeding device of numerical control machine tool - Google Patents
Tool rest feeding device of numerical control machine tool Download PDFInfo
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- CN112059683B CN112059683B CN202010956069.7A CN202010956069A CN112059683B CN 112059683 B CN112059683 B CN 112059683B CN 202010956069 A CN202010956069 A CN 202010956069A CN 112059683 B CN112059683 B CN 112059683B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/14—Control or regulation of the orientation of the tool with respect to the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to the technical field of numerical control machines and discloses a tool rest feeding device of a numerical control machine, which comprises a feeding box, wherein a connecting cylinder is fixedly arranged on the front side of the feeding box, a lubricating cylinder is fixedly sleeved on the front side of the connecting cylinder, an air cylinder is fixedly arranged on the rear side of an inner cavity of the connecting cylinder, the front side of the air cylinder is movably sleeved on the rear side of the lubricating cylinder, a tool apron is fixedly arranged on the front side of the air cylinder, and a liquid outlet is formed in the bottom of the lubricating cylinder. This digit control machine tool knife rest feeding device contracts through the cylinder and can be with the blade holder indentation to the inner chamber of lubricating cylinder in, can start the oil-well pump through control switch, can take out the connecting pipe with the lubricating oil in the oil-well pump, spray the cutter on the blade holder through the shower nozzle on the arc passageway again, through six shower nozzles evenly distributed on the bottom of arc passageway, the cutter on the even and comprehensive blade holder of being convenient for maintains, has made things convenient for staff's use.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a tool rest feeding device of a numerical control machine tool.
Background
The numerically controlled machine tool is an automatic machine tool with program control system, which can logically process and decode the program defined by control code or other symbolic instruction, and input it into the numerically controlled machine tool through information carrier, and the numerically controlled machine tool can send out various control signals through operation processing to control the action of the machine tool, so that the parts can be automatically machined according to the required shape and size of the drawing.
The existing tool rest feeding device of the numerical control machine tool can feed a tool on a tool apron, however, the tool on the tool apron needs to be maintained after being used, the tool is detached from the tool apron, and then the surface of the tool is coated with lubricating oil to maintain the tool, so that the tool rest feeding device is very troublesome, and wastes time and labor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a numerical control machine tool rest feeding device which has the advantage of being convenient for maintaining a tool on a tool apron and solves the problems in the background technology.
The invention provides the following technical scheme: a tool rest feeding device of a numerical control machine tool comprises a feeding box, wherein a connecting cylinder is fixedly arranged on the front side of the feeding box, the front side of the connecting cylinder is fixedly sleeved with a lubricating cylinder, the rear side of the inner cavity of the connecting cylinder is fixedly provided with an air cylinder, the front side of the cylinder is movably sleeved on the rear side of the lubricating cylinder, a tool apron is fixedly arranged at the front end of the cylinder, a liquid outlet is arranged at the bottom of the lubricating cylinder, a lubricating box is fixedly sleeved at the outer side of the lubricating cylinder, the upper part of one side of the lubricating box is fixedly sleeved with a liquid inlet pipe, the top of the lubricating box is fixedly sleeved with an oil well pump, a control switch is fixedly arranged on one side of the oil well pump, a connecting pipe is fixedly sleeved at the output end of the oil well pump, the top of a lubricating cylinder inner cavity is fixedly sleeved with an arc-shaped channel, one end of the connecting pipe is fixedly sleeved at the top of the arc-shaped channel, and the bottom of the arc-shaped channel is fixedly sleeved with a spray head.
Preferably, the equal fixed mounting in both sides of lubricated section of thick bamboo inner chamber lower part has the curb plate, movable groove has been seted up to curb plate one side, the inner chamber fixed mounting in movable groove has the telescopic link, the one end fixed mounting of telescopic link has the limiting plate, the spring has been cup jointed in the outside activity of telescopic link, the both ends difference fixed mounting of spring is in one side of movable groove inner chamber and one side of limiting plate, swing joint has even board between limiting plate and the movable groove, even one side fixed mounting of board has the screen that is located the liquid outlet top.
Preferably, the whole body of the side plate is L-shaped, and the connecting plate is positioned between the bottom of the limiting plate and one side of the top of the side plate.
Preferably, the top of a lubricating cylinder is provided with a square frame outside the tool apron through a fixed support, a screw rod is movably sleeved on one side of an inner cavity of the square frame, a guide rod is fixedly sleeved on the other side of the inner cavity of the square frame, a brush on the front side of the tool apron is movably sleeved on the outer side of the guide rod and the outer side of the screw rod respectively, a motor is fixedly arranged on one side of the bottom of the square frame through a fixed frame, and an output end of the motor is fixedly sleeved on the bottom of the screw rod.
Preferably, an inner thread is arranged in an inner cavity on one side of the brush, and the inner thread is meshed with the thread on the outer side of the screw rod.
Preferably, the number of the spray heads is six, and the six spray heads are uniformly distributed on the bottom of the arc-shaped channel.
Preferably, the number of the limiting plates is two, and each limiting plate is fixedly connected with one side of the inner cavity of the movable groove through four telescopic rods and four springs.
Preferably, the device also comprises a detection system of the numerically-controlled machine tool rest feeding device, wherein the detection system of the numerically-controlled machine tool rest feeding device is arranged in the feeding box;
digit control machine tool knife rest feeding device detecting system includes:
the data acquisition device is arranged in the feeding box and used for acquiring working parameters and environmental parameters of the tool rest feeding device of the numerical control machine tool in real time, wherein the working parameters comprise the power supply voltage of the feeding box, the working air pressure of the air cylinder and the working power of the oil well pump; the environment parameters comprise environment temperature, temperature of the cutter and lubricating oil quantity on the cutter;
the first calculation module is connected with the data acquisition unit and used for calculating a first actual safety factor of the operation of the numerical control machine tool rest feeding device based on the working parameters;
the second calculation module is connected with the data acquisition unit and used for calculating a second actual safety factor of the operation of the numerical control machine tool rest feeding device based on the environmental parameters;
the comparison module is connected with the first calculation module and the second calculation module and used for acquiring a first ratio of the first actual safety coefficient to a preset first reference safety coefficient and acquiring a second ratio of the second actual safety coefficient to a preset second reference safety coefficient;
the memory is connected with the comparison module and stores a plurality of different reference emergency strategies, and each reference emergency strategy corresponds to a first ratio range and a second ratio range;
the third calculation module is connected with the comparison module and the memory and is used for calculating a first maximum difference value between the first ratio and the first ratio range of each emergency strategy and a second maximum difference value between the second ratio and the second ratio range of each emergency strategy and accumulating the first maximum difference value and the second maximum difference value corresponding to each emergency strategy;
and the emergency strategy acquisition module is connected with the third calculation module and the external display, acquires the emergency strategy with the minimum comprehensive difference value and displays the emergency strategy through the external display.
Preferably, the feeding box is connected with a feeding power adjusting device, and the numerically-controlled machine tool rest feeding device further comprises:
the power sensor is used for acquiring the actual feeding power of the feeding box;
a speed sensor for a feed speed of the feed box;
the pressure sensor is used for collecting the pressure of the workpiece to be machined on the cutter seat;
the temperature sensor is used for acquiring the temperature of the cutter on the cutter holder;
and the controller is electrically connected with the power sensor, the speed sensor, the pressure sensor and the temperature sensor, and calculates the feeding device of the tool rest of the numerical control machine tool based on the power sensor, the speed sensor, the pressure sensor and the temperature sensor to control the feeding power adjusting device to work.
Preferably, the controller calculates the feeding power of the tool rest feeding device of the numerically-controlled machine tool based on the power sensor, the speed sensor, the pressure sensor and the temperature sensor to control the feeding power adjusting device to work, and the method comprises the following steps:
the method comprises the following steps: the controller calculates the power error rate of the numerical control machine tool cutter rest feeding device through a formula (1):
wherein, alpha is the power error rate of the feeding device of the numerical control machine; qeThe input power value of the feeding box is preset according to processing; qaAn initial actual feed power value detected by the power sensor;
step two: if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is smaller than a preset error rate threshold, no adjustment is needed, if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is larger than or equal to the preset error rate threshold, the controller calculates target feeding power according to a formula (2) and controls the power adjusting device to work, so that the current actual feeding power of a feeding box is the target feeding power Q;
wherein v is an initial feeding speed detected by the speed sensor; a ispIs the back bite of the tool, v0Is the maximum allowable feeding speed of the feeding box, F is the detection value of the pressure sensor,Hfor the target back-cut of the work piece, F0In order to preset the safe pressure of the cutter on a machined workpiece, e is a constant and takes the value of 2.71828, and ln is a natural logarithm.
Compared with the prior art, the invention has the following beneficial effects:
1. this digit control machine tool knife rest feeding device contracts through the cylinder and can be with the blade holder indentation to the inner chamber of lubricating cylinder in, can start the oil-well pump through control switch, can take out the connecting pipe with the lubricating oil in the oil-well pump, spray the cutter on the blade holder through the shower nozzle on the arc passageway again, through six shower nozzles evenly distributed on the bottom of arc passageway, the cutter on the even and comprehensive blade holder of being convenient for maintains, has made things convenient for staff's use.
2. This digit control machine tool knife rest feeding device is equipped with through the top of liquid outlet and leaks the net, has avoided the cutter on the blade holder when lubricating, in lubricating oil area cutter goes up the piece and enters into the inner chamber of lubricated case to influence next lubricating oil to use in the lubricated case, make this device can carry out used repeatedly to lubricating oil, practiced thrift the utilization of resource.
3. This digit control machine tool knife rest feeding device can drive the rotation of lead screw through the operation of motor, and the inner chamber of rethread brush one side utilizes the internal thread to be connected with the lead screw meshing, is convenient for drive the brush and remove in the inner chamber of square frame along the orbit of guide arm, is convenient for clear up the blade holder after using the blade holder, is convenient for clear up the piece on the blade holder, is convenient for use the blade holder next time.
4. The detection system of the numerical control machine tool feeding device collects the voltage, the current and the power of the numerical control machine tool feeding device through a power sensor, a voltage sensor and a current sensor, transmits the voltage, the current and the power to a microprocessor for calculation analysis and adjustment, and transmits the result to an external display; the device can enable the numerical control machine tool to rapidly adjust the voltage, the current and the power value of the numerical control machine tool under various different cutting conditions, and when the cutter in the feeding device of the numerical control machine tool is driven to feed, the cutter is rapidly controlled and adjusted, so that the machining efficiency of the numerical control machine tool is greatly improved, the machining cost is reduced, the utilization rate of the machine tool and the cutting efficiency are greatly improved, and a numerical control machine tool operator can observe parameters and changes of the feeding device of the numerical control machine tool more visually.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional perspective view of a lubrication cartridge according to the present invention;
FIG. 3 is a schematic view of an explosion space structure between a limiting plate and a movable groove of the invention;
FIG. 4 is an enlarged perspective view of the present invention at A;
FIG. 5 is a perspective view of the brush of the present invention;
fig. 6 is a schematic view of the detection system of the tool rest feeding device of the numerically-controlled machine tool of the invention.
In the figure: 1. a feed box; 2. a connecting cylinder; 3. a lubricating cylinder; 4. a cylinder; 5. a tool apron; 6. a liquid outlet; 7. a lubrication box; 8. a liquid inlet pipe; 9. an oil well pump; 10. a connecting pipe; 11. a control switch; 12. an arc-shaped channel; 13. a spray head; 14. a side plate; 15. a movable groove; 16. a telescopic rod; 17. a limiting plate; 18. a spring; 19. a leakage net; 20. a square frame; 21. a guide bar; 22. a screw rod; 23. a brush; 24. a motor; 25. connecting plates; 26. a data acquisition unit; 27. a first calculation module; 28. a second calculation module; 29. a comparison module; 30. a memory; 31. a third calculation module; 32. and an emergency strategy acquisition module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a tool rest feeding device of a numerical control machine tool comprises a feeding box 1, a connecting cylinder 2 is fixedly installed on the front side of the feeding box 1, a lubricating cylinder 3 is fixedly sleeved on the front side of the connecting cylinder 2, an air cylinder 4 is fixedly installed on the rear side of the inner cavity of the connecting cylinder 2, the front side of the air cylinder 4 is movably sleeved on the rear side of the lubricating cylinder 3, a tool apron 5 is fixedly installed on the front side of the air cylinder 4, a liquid outlet 6 is opened on the bottom of the lubricating cylinder 3, a lubricating box 7 is fixedly sleeved on the outer side of the lubricating cylinder 3, a liquid inlet pipe 8 is fixedly sleeved on the upper portion of one side of the lubricating box 7, an oil pump 9 is fixedly sleeved on the top of the lubricating box 7, a control switch 11 is fixedly installed on one side of the oil pump 9, a connecting pipe 10 is fixedly sleeved on the output end of the oil pump 9, an arc-shaped channel 12 is fixedly sleeved on the top of the inner cavity of the lubricating cylinder 3, one end of the connecting pipe 10 is fixedly sleeved on the top of the arc-shaped channel 12, the bottom of the arc-shaped channel 12 is fixedly sleeved with a spray head 13.
Wherein, both sides of the lower part of the inner cavity of the lubricating cylinder 3 are fixedly provided with side plates 14, one side of each side plate 14 is provided with a movable groove 15, the inner cavity of each movable groove 15 is fixedly provided with a telescopic rod 16, one end of each telescopic rod 16 is fixedly provided with a limit plate 17, the outer side of each telescopic rod 16 is movably sleeved with a spring 18, both ends of each spring 18 are respectively and fixedly arranged at one side of the inner cavity of the movable groove 15 and one side of each limit plate 17, a connecting plate 25 is movably connected between each limit plate 17 and the movable groove 15, one side of each connecting plate 25 is fixedly provided with a leakage net 19 positioned above the liquid outlet 6, the top of the liquid outlet 6 is provided with the leakage net 19, so that the lubricating oil is prevented from carrying the scraps on the cutter to enter the inner cavity of the lubricating box 7 when the cutter on the cutter holder 5 is lubricated, thereby influencing the use of the lubricating oil in the lubricating box 7 next time, leading the device to be capable of repeatedly using the lubricating oil and saving the utilization of resources.
Wherein, the whole of curb plate 14 is L word shape, even the board 25 is located between the bottom of limiting plate 17 and one side at curb plate 14 top, is L word shape through the whole of curb plate 14, and the rethread even the board 25 is located between the bottom of limiting plate 17 and one side at curb plate 14 top, is convenient for dismantle the net 19 that leaks from curb plate 14, is convenient for clear up the impurity in the net 19 that leaks.
Wherein, there is the square frame 20 that is located the blade holder 5 outside at the top of lubricating cylinder 3 through support fixed mounting, lead screw 22 has been cup jointed in the activity of one side of the 20 inner chambers of square frame, guide arm 21 has been cup jointed to the opposite side of the 20 inner chambers of square frame fixedly, the outside of guide arm 21 and the outside of lead screw 22 are respectively movably cup jointed and are located the brush 23 of the 5 front sides of blade holder, there is motor 24 one side of the 20 bottom of square frame through frame fixed mounting, the output end of motor 24 is fixed to be cup jointed in the bottom of lead screw 22, set up in the 5 outsides of blade holder through square frame 20, make the setting of square frame 20 not influence the normal use of blade holder 5.
Wherein, be equipped with the internal thread in the inner chamber of brush 23 one side, the screw thread intermeshing in internal thread and the lead screw 22 outside, operation through motor 24 can drive lead screw 22's rotation, the inner chamber of rethread brush 23 one side utilizes the internal thread to be connected with the meshing of lead screw 22, be convenient for drive brush 23 and remove in square frame 20's inner chamber along guide arm 21's orbit, be convenient for clear up blade holder 5 after having used blade holder 5, be convenient for clear up the piece on the blade holder 5, be convenient for use blade holder 5 next time.
Wherein, the quantity of shower nozzle 13 is six, six shower nozzles 13 evenly distributed are on the bottom of arc passageway 12, shrink through cylinder 4 and can be with blade holder 5 indentation to the inner chamber of lubricating cylinder 3 in, can start oil-well pump 9 through control switch 11, can take out connecting pipe 10 with the lubricating oil in the oil-well pump 9, shower nozzle 13 on passing through arc passageway 12 sprays on the cutter of blade holder 5 again, through six shower nozzles 13 evenly distributed on the bottom of arc passageway 12, be convenient for even and comprehensive cutter on the blade holder 5 maintains, staff's use has been made things convenient for.
Wherein, the quantity of limiting plate 17 is two, and every limiting plate 17 all is through one side fixed connection of four telescopic links 16 and four springs 18 and activity groove 15 inner chamber, all through one side fixed connection of four telescopic links 16 and four springs 18 and activity groove 15 inner chamber through every limiting plate 17, is convenient for provide sufficient elasticity for limiting plate 17 can be retracted in the inner chamber of activity groove 15 when receiving the influence of external force.
The working principle is as follows: during the use, when the cutter on blade holder 5 needs the maintenance, shrink through cylinder 4 and can be with blade holder 5 indentation to the inner chamber of lubrication section of thick bamboo 3, can start oil-well pump 9 through control switch 11, can take connecting pipe 10 with the lubricating oil in the oil-well pump 9, shower nozzle 13 on the arc passageway 12 sprays on the cutter on blade holder 5 again, maintain the cutter on the blade holder 5, lubricating oil after the maintenance takes impurity to filter through leaking net 19, filter the impurity in the lubricating oil, the operation through motor 24 can drive the rotation of lead screw 22, it removes in the inner chamber of square frame 20 to drive brush 23 along the orbit of guide arm 21, clear up blade holder 5 after using blade holder 5, can.
The detection system of the numerical control machine tool rest feeding device is arranged in the feeding box (1);
digit control machine tool knife rest feeding device detecting system includes:
the data acquisition unit 26 is arranged in the feeding box 1 and is used for acquiring working parameters and environmental parameters of the numerical control machine tool knife rest feeding device in real time, wherein the working parameters comprise power supply voltage of the feeding box 1, working air pressure of an air cylinder and working power of an oil well pump; the environment parameters comprise environment temperature, temperature of the cutter and lubricating oil quantity on the cutter;
the first calculation module 27 is connected with the data acquisition unit 26 and is used for calculating a first actual safety factor of the operation of the numerical control machine tool rest feeding device based on the working parameters;
the second calculation module 28 is connected with the data acquisition unit 26 and is used for calculating a second actual safety factor of the operation of the numerical control machine tool rest feeding device based on the environmental parameters;
the comparison module 29 is connected with the first calculation module and the second calculation module, and is used for acquiring a first ratio of the first actual safety factor to a preset first reference safety factor and acquiring a second ratio of the second actual safety factor to a preset second reference safety factor;
the memory 30 is connected with the comparison module and stores a plurality of different reference emergency strategies, and each reference emergency strategy corresponds to a first ratio range and a second ratio range;
a third calculating module 31, connected to the comparing module and the memory, for calculating a first maximum difference between the first ratio and the first ratio range of each emergency policy, and a second maximum difference between the second ratio and the second ratio range of each emergency policy, and simultaneously accumulating the first maximum difference and the second maximum difference corresponding to each emergency policy;
and the emergency strategy obtaining module 32 is connected with the third calculating module and the external display, obtains the emergency strategy with the minimum comprehensive difference value, and displays the emergency strategy through the external display.
The working principle and the beneficial effects of the technical scheme are as follows: the working parameters and the environmental parameters of the numerically-controlled machine tool rest feeding device are collected in real time through a data collector, transmitted to a calculation module, a comparison module and a storage to obtain an emergency strategy, and transmitted to a display for display; greatly improves the fault-tolerant rate of the numerical control machine tool knife rest feeding device, enables operators of the numerical control machine tool to maintain and maintain the numerical control machine tool more conveniently and rapidly, and reduces the cost of using the numerical control machine tool. And the numerical control machine tool operator can observe the parameters and the changes of the numerical control machine tool feeding device more intuitively.
In one embodiment, further comprising:
the power sensor is used for acquiring the actual feeding power of the feeding box;
a speed sensor for a feed speed of the feed box;
the pressure sensor is used for collecting the pressure of the workpiece to be machined on the cutter seat;
the temperature sensor is used for acquiring the temperature of the cutter on the cutter holder;
the controller is electrically connected with the power sensor, the speed sensor, the pressure sensor and the temperature sensor, and calculates the feeding device of the tool rest of the numerical control machine tool based on the power sensor, the speed sensor, the pressure sensor and the temperature sensor to control the feeding power adjusting device to work;
the method comprises the following steps: the controller calculates the power error rate of the numerical control machine tool cutter rest feeding device through a formula (1):
wherein, alpha is the power error rate of the feeding device of the numerical control machine; qeThe input power value of the feeding box is preset according to processing; qaAn initial actual feed power value detected by the power sensor;
step two: if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is smaller than a preset error rate threshold value, no adjustment is needed, if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is larger than or equal to the preset error rate threshold value, the controller calculates target feeding power according to a formula (2) and controls the power adjusting device to work, so that the current actual feeding power of the feeding box (1) is the target feeding power Q;
wherein v is an initial feeding speed detected by the speed sensor; a ispIs the back draft of the tool (the actual back draft at the time of v), v0Is the maximum allowable feeding speed of the feeding box (1), F is the detection value of the pressure sensor,Hfor the target back-cut of the work piece, F0In order to preset the safe pressure of the cutter on a machined workpiece, e is a constant and takes the value of 2.71828, and ln is a natural logarithm.
The initial feeding speed is the initial feeding speed adaptive to the target workpiece;
the working principle and the beneficial effects are as follows: the detection system of the numerical control machine feeding device acquires the voltage, the current and the power of the numerical control machine feeding device through the power sensor, the voltage sensor and the current sensor, transmits the voltage, the current and the power to the microprocessor for calculation, analysis and adjustment, and transmits the result to an external display; the device can enable the numerical control machine tool to rapidly adjust the voltage, the current and the power value of the numerical control machine tool under various different cutting conditions, and when the cutter in the feeding device of the numerical control machine tool is driven to feed, the cutter is rapidly controlled and adjusted, so that the machining efficiency of the numerical control machine tool is greatly improved, the machining cost is reduced, the utilization rate of the machine tool and the cutting efficiency are greatly improved, and a numerical control machine tool operator can observe parameters and changes of the feeding device of the numerical control machine tool more visually.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a digit control machine tool knife rest feeding device, includes feed box (1), its characterized in that: the front side of the feeding box (1) is fixedly provided with a connecting cylinder (2), the front side of the connecting cylinder (2) is fixedly sleeved with a lubricating cylinder (3), the rear side of the inner cavity of the connecting cylinder (2) is fixedly provided with a cylinder (4), the front side of the cylinder (4) is movably sleeved on the rear side of the lubricating cylinder (3), the front end of the cylinder (4) is fixedly provided with a cutter holder (5), the bottom of the lubricating cylinder (3) is provided with a liquid outlet (6), the outer side of the lubricating cylinder (3) is fixedly sleeved with a lubricating box (7), the upper part of one side of the lubricating box (7) is fixedly sleeved with a liquid inlet pipe (8), the top of the lubricating box (7) is fixedly sleeved with a control switch (11), the output end of the oil pump (9) is fixedly sleeved with a connecting pipe (10), an arc-shaped channel (12) is fixedly sleeved at the top of the inner cavity of the lubricating cylinder (3), one end of the connecting pipe (10) is fixedly sleeved at the top of the arc-shaped channel (12), and a spray head (13) is fixedly sleeved at the bottom of the arc-shaped channel (12);
both sides of the lower part of an inner cavity of the lubricating cylinder (3) are fixedly provided with side plates (14), one side of each side plate (14) is provided with a movable groove (15), an inner cavity of each movable groove (15) is fixedly provided with a telescopic rod (16), one end of each telescopic rod (16) is fixedly provided with a limiting plate (17), the outer side of each telescopic rod (16) is movably sleeved with a spring (18), two ends of each spring (18) are respectively and fixedly arranged on one side of the inner cavity of each movable groove (15) and one side of each limiting plate (17), a connecting plate (25) is movably connected between each limiting plate (17) and each movable groove (15), and one side of each connecting plate (25) is fixedly provided with a leakage net (19) positioned above the liquid outlet (6);
the numerical control machine tool rest feeding device detection system is arranged in the feeding box (1);
digit control machine tool knife rest feeding device detecting system includes:
the data acquisition unit (26) is arranged in the feeding box (1) and is used for acquiring working parameters and environmental parameters of the numerical control machine tool rest feeding device in real time, wherein the working parameters comprise the power supply voltage of the feeding box (1), the working air pressure of the air cylinder (4) and the working power of the oil well pump (9); the environment parameters comprise environment temperature, temperature of the cutter and lubricating oil quantity on the cutter;
the first calculation module (27) is connected with the data acquisition unit (26) and is used for calculating a first actual safety factor of the operation of the numerically-controlled machine tool rest feeding device based on the working parameters;
the second calculation module (28) is connected with the data acquisition unit (26) and is used for calculating a second actual safety factor of the operation of the numerically-controlled machine tool rest feeding device based on the environmental parameters;
the comparison module (29) is connected with the first calculation module (27) and the second calculation module (28) and is used for acquiring a first ratio of the first actual safety coefficient to a preset first reference safety coefficient and acquiring a second ratio of the second actual safety coefficient to a preset second reference safety coefficient;
the memory (30) is connected with the comparison module (29) and stores a plurality of different reference emergency strategies, and each reference emergency strategy corresponds to a first ratio range and a second ratio range;
the third calculating module (31) is connected with the comparing module (29) and the memory (30) and is used for calculating a first maximum difference value between the first ratio and the first ratio range of each emergency strategy and a second maximum difference value between the second ratio and the second ratio range of each emergency strategy, and meanwhile accumulating the first maximum difference value and the second maximum difference value corresponding to each emergency strategy;
and the emergency strategy acquisition module (32) is connected with the third calculation module and the external display, acquires the emergency strategy with the minimum comprehensive difference value and displays the emergency strategy through the external display.
2. The numerical control machine tool rest feeding device according to claim 1, characterized in that: the whole body of the side plate (14) is L-shaped, and the connecting plate (25) is positioned between the bottom of the limiting plate (17) and one side of the top of the side plate (14).
3. The numerical control machine tool rest feeding device according to claim 1, characterized in that: the top of a lubricating cylinder (3) is provided with a square frame (20) which is positioned on the outer side of a tool apron (5) through a support fixed mounting, a screw rod (22) is sleeved on one side of the inner cavity of the square frame (20), a guide rod (21) is fixedly sleeved on the other side of the inner cavity of the square frame (20), a brush (23) which is positioned on the front side of the tool apron (5) is sleeved on the outer side of the guide rod (21) and the outer side of the screw rod (22) in a movable mode respectively, a motor (24) is fixedly mounted on one side of the bottom of the square frame (20) through a rack, and the output end of the motor (24) is fixedly sleeved on the bottom of the screw rod (22).
4. A numerically controlled machine tool rest feeding device according to claim 3, characterized in that: an internal thread is arranged in an inner cavity on one side of the brush (23), and the internal thread is meshed with the thread on the outer side of the screw rod (22).
5. The numerical control machine tool rest feeding device according to claim 1, characterized in that: the number of the spray heads (13) is six, and the six spray heads (13) are uniformly distributed on the bottom of the arc-shaped channel (12).
6. The numerical control machine tool rest feeding device according to claim 1, characterized in that: the number of the limiting plates (17) is two, and each limiting plate (17) is fixedly connected with one side of the inner cavity of the movable groove (15) through four telescopic rods (16) and four springs (18).
7. The numerical control machine tool rest feeding device according to claim 1, characterized in that:
feed case (1) is connected with and feeds power adjusting device, and digit control machine tool knife rest feeding device still includes:
the power sensor is used for acquiring the actual feeding power of the feeding box (1);
a speed sensor for the feed speed of the feed box (1);
the pressure sensor is used for collecting the pressure of the processing workpiece on a cutter on the cutter holder (5);
the temperature sensor is used for collecting the temperature of the cutter on the cutter holder (5);
and the controller is electrically connected with the power sensor, the speed sensor, the pressure sensor and the temperature sensor, and calculates the feeding device of the tool rest of the numerical control machine tool based on the power sensor, the speed sensor, the pressure sensor and the temperature sensor to control the feeding power adjusting device to work.
8. The tool rest feeding device of the numerical control machine tool as claimed in claim 7, wherein: a
The controller calculates the feeding device of the numerical control machine tool rest based on the power sensor, the speed sensor, the pressure sensor and the temperature sensor to control the feeding power adjusting device to work and comprises the following steps:
the method comprises the following steps: the controller calculates the power error rate of the numerical control machine tool cutter rest feeding device through a formula (1):
wherein, alpha is the power error rate of the feeding device of the numerical control machine; qeThe input power value of the feeding box (1) is preset according to the processing; qaAn initial actual feed power value detected by the power sensor;
step two: if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is smaller than a preset error rate threshold value, no adjustment is needed, if the power error rate of the numerical control machine tool rest feeding device calculated in the step one is larger than or equal to the preset error rate threshold value, the controller calculates target feeding power according to a formula (2) and controls the power adjusting device to work, so that the current actual feeding power of the feeding box (1) is the target feeding power Q;
wherein v is an initial feeding speed detected by the speed sensor; a ispIs the back bite of the tool, v0Is the maximum allowable feeding speed of the feeding box (1), F is the detection value of the pressure sensor, H is the target back-cut amount of the processed workpiece, F0In order to preset the safe pressure of the cutter on a machined workpiece, e is a constant and takes the value of 2.71828, and ln is a natural logarithm.
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