CN211805123U - Micro-lubricating intelligent nozzle system of numerical control horizontal lathe based on six-axis linkage platform - Google Patents

Abstract

The utility model discloses a numerical control horizontal lathe micro-lubricating intelligent spray head system based on a six-axis linkage platform, wherein a transverse moving part is connected with a longitudinal telescopic part to provide power required by transverse movement for the longitudinal telescopic part so as to enable the longitudinal telescopic part to move horizontally; a rotating part is arranged in the longitudinal telescopic part, so that the rotating part can move longitudinally; the rotating part is connected with the six-axis linkage platform, the rotating part drives the six-axis linkage platform to rotate, and the six-axis linkage platform is provided with a spray head; and the sprayer is provided with detection equipment, and the movement of the transverse moving part, the longitudinal telescopic part, the rotating part and the six-axis linkage platform is adjusted according to temperature data detected by the detection equipment, so that the sprayer can continuously track and spray the horizontal lathe.

Description

Micro-lubricating intelligent nozzle system of numerical control horizontal lathe based on six-axis linkage platform

Technical Field

The utility model relates to the technical field of metal processing, in particular to a numerical control horizontal lathe micro-lubricating intelligent nozzle system based on a six-axis linkage platform.

Background

The traditional machining adopts a large amount of emulsion, cutting oil, coolant and the like to cool and lubricate a machining area, the utilization rate of the cooling and lubricating mode is low, the huge machining and production cost is increased, and the environment is greatly damaged if the scrapped coolant is not properly treated. Dry processing technology was the earliest emerging green and environmentally friendly processing technology, which originated in the automotive industry. Has been successfully applied to mechanical processing such as turning, drilling, boring and the like. The cutting fluid is not simply and completely abandoned, but is abandoned on the premise of ensuring the machining precision of parts and the service life of a cutter. However, dry machining does not solve the problem of cooling of the cutting zone, resulting in surface burn, deterioration of surface integrity, etc. of the workpiece.

The trace lubrication technology replaces the pouring emulsion and the dry processing technology, which is a necessary trend, and is suitable for the concepts of green manufacture and sustainable development. The method is a technology for mixing and atomizing a trace amount of lubricating liquid, water and gas with certain pressure and then spraying the mixture to a cutting area to play a role in cooling and lubricating. The water and the high-pressure gas play a cooling role, and the oil plays a role in lubricating a cutting area and prolonging the service life of the cutter. At present, research on the minimal quantity lubrication technology has made a certain progress, and the design and research on the minimal quantity lubrication equipment become important content for realizing the minimal quantity lubrication technology. Although many designers have designed minimal lubrication systems, there are still many problems in practical applications.

The prior art carries out deep research on trace lubrication equipment, designs a nanoparticle jet flow trace lubrication grinding three-phase flow supply system, and is characterized in that: the nanometer fluid is conveyed to the nozzle through the liquid path, simultaneously, the high-pressure gas enters the nozzle through the gas path, the high-pressure gas and the nanometer fluid are fully mixed and atomized in the nozzle mixing chamber, the nanometer fluid enters the vortex chamber after being accelerated by the accelerating chamber, simultaneously, the compressed gas enters through the vent hole of the vortex chamber, so that the three-phase flow is further rotated, mixed and accelerated, and then the three-phase flow is sprayed to the grinding area through the nozzle outlet in the form of atomized liquid drops.

The precise lubricating pump of the trace lubricating system designed by the prior art is characterized in that: lubricant enters the liquid cavity from the oil inlet hole; the piston rod is driven by compressed air, when the compressed air enters the gas cavity, the pressure at the tail part of the piston rod is increased, when the pressure is larger than the elastic force of the piston spring at the front end of the piston rod, the piston rod moves forwards, the liquid cavity is reduced, the pressure is increased, when the pressure is larger than the elastic force of the check valve spring, the check valve plug is opened, and the lubricant is pumped out; the pressure of the liquid cavity is released, when the pressure is smaller than the one-way valve spring, the one-way valve spring is reset, and the oil outlet is closed; when the pressure of the gas cavity is released, the pressure at the tail part of the piston rod is smaller than the elastic force of the piston spring, and the piston rod is reset. The miniature precise pneumatic pump has the advantages of providing the miniature precise pneumatic pump capable of precisely supplying oil, having precise design and being suitable for various lubricants to be used in a lubricating device for metal processing.

The continuous liquid supply type micro-lubricating device designed by the prior art is characterized in that: the device comprises a peristaltic pump, an air source processor, an air-liquid joint, an air source pipe, an input air pipe, a transfusion hose, a liquid outlet hose, an air-liquid coaxial pipe, a nozzle and a box body for mounting the components, wherein the air source processor is fixedly mounted on the outer side of the box body; the inlet of the gas source processor is connected with a gas source gas pipe, and the outlet of the gas source processor is connected with the second inlet of the gas-liquid joint through an input gas pipe; the outlet of the gas-liquid joint is connected with the nozzle through the gas-liquid coaxial pipe, and compressed air and cutting fluid are mixed in the nozzle to form cutting fluid aerial fog and are sprayed out. The cutting fluid feeding device has the characteristics of compact structure, simplicity and convenience in operation, accurate oil quantity control, continuous cutting fluid feeding, convenience in installation and the like.

Although the three minimal quantity lubrication devices replace the traditional pouring type by a minimal quantity lubrication mode, the connection structure of the devices is still the traditional universal pipe, people can approximately align the spray head to the turning tool through the knowledge of the horizontal lathe machining before the horizontal lathe machining, but when the horizontal lathe machining is carried out, the cutting fluid can not be sprayed around the working point of the turning tool, the waste of the cutting fluid and the burning of the surface of a workpiece are caused, and the continuous tracking spraying of the cutting fluid to the horizontal lathe machining can not be realized.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the disclosure provides a micro-lubricating intelligent spray head system of a numerical control horizontal lathe based on a six-axis linkage platform, aiming at different working condition characteristics during turning, a proper cutting fluid flow control system is selected to be combined with a nozzle movement system, and the best cooling effect is realized.

Numerical control horizontal lathe micro-lubricating intelligent nozzle system based on six-axis linkage platform includes: the horizontal moving part, the vertical telescopic part, the rotating part and the six-axis linkage platform;

the transverse moving part is connected with the longitudinal telescopic part and provides power required by transverse movement for the longitudinal telescopic part, so that the longitudinal telescopic part can move horizontally;

a rotating part is arranged in the longitudinal telescopic part, so that the rotating part can move longitudinally;

the rotating part is connected with a six-axis linkage platform, the six-axis linkage platform consists of two parallel fixed bases and six telescopic pneumatic cylinders for adjusting the angle of the spray head, the rotating part drives the six-axis linkage platform to rotate, and the spray head is arranged on the six-axis linkage platform;

and the sprayer is provided with detection equipment, and the movement of the transverse moving part, the longitudinal telescopic part, the rotating part and the six-axis linkage platform is adjusted according to temperature data detected by the detection equipment, so that the sprayer can continuously track and spray the horizontal lathe.

Furthermore, the transverse moving part is fixed on one side of the slide carriage of the horizontal lathe and comprises an L-shaped fixed support and a transverse lead screw system, and power required by transverse movement is provided for a lead screw through a first motor;

the transverse lead screw system consists of a guide wheel, a lead screw sliding block, a lead screw sliding rod and a coupler, wherein the output end of the first motor is connected to the coupler, the coupler is connected with one end of the lead screw sliding rod, and the other end of the lead screw sliding rod is fixed on the L-shaped fixed support through a bearing; the lead screw sliding rod is provided with a lead screw sliding block;

the screw rod sliding block is provided with a screw hole for fixing the longitudinal telescopic part, and the first motor is fixed on the L-shaped fixing support.

Furthermore, the longitudinal telescopic part consists of a barrel-shaped fixed outer frame, a longitudinal lead screw system and a plurality of guide slide bars, and the upper end of the barrel-shaped fixed outer frame is fixed on a lead screw slide block of the transverse moving part; the guide sliding rod moves in the slide way, and the slide way is arranged on the barrel-shaped fixed outer frame.

Preferably, a lead screw slide rod of the longitudinal lead screw system is connected with a corresponding lead screw slide block, and a guide slide rod is connected with a corresponding guide slide block; and a lead screw slide rod and a guide slide rod of the longitudinal lead screw system are connected to the rotating part.

Preferably, the part of the screw slider connected with the rotating part is an arc surface, and the rotating part is connected with the screw sliding rod.

Furthermore, the rotating part comprises a rotating platform consisting of a rotating part shell, a first thrust ball bearing, an upper end cover, a second thrust ball bearing and a lower end cover, two groups of shaft shoulders are arranged at the bottom end of the rotating part shell and used for mounting the first thrust ball bearing and the second thrust ball bearing to form a rotating pair so as to realize the rotation of the rotating part, and the upper end cover and the lower end cover are respectively and correspondingly fixed at the upper end and the lower end of the rotating part shell; a gear ring is fixed on the upper end cover; the lower end cover is connected to the six-axis linkage platform;

the inner wall of the rotating part shell is fixed with a rotating motor, and the rotating platform is driven by the rotating motor and is driven by a gear and a gear ring.

Further, six linkage platforms include six flexible pneumatic cylinders, and the one end of every flexible pneumatic cylinder is connected to the rotating part lower extreme cover through the hooke hinge, and the other end is connected to shower nozzle fixed platform, shower nozzle fixed platform is connected to the shower nozzle, adjusts the angle of shower nozzle through the length of adjusting flexible pneumatic cylinder.

Furthermore, temperature sensors and angle detection sensors are respectively installed on two sides of the front end of the spray head, the spray head is a two-phase spray head, an air pipe and a liquid pipe are arranged in the spray head, the two spray heads are converged at the front end of the spray head to generate a gas-liquid mixture for cooling and lubricating working points, and the gas-liquid ratio can be adjusted through information fed back by the temperature sensors to generate a proper amount of gas-liquid mixture.

Furthermore, a signal receiver and an angle detection sensor are respectively arranged on two sides of the front end of the spray head, and an acoustic emission signal sensor and a signal transmitter are arranged on the rear side of the lathe spindle; the acoustic emission signal sensor collects signals, the signals are transmitted to the signal receiver by the signal transmitter, the obtained acoustic signals are transmitted to the filter by the signal receiver, the filtered signals are transmitted to the controller, and the controller adjusts the movement of the spray head according to the information to realize the adjustment of the temperature of the processing area.

The control method of the micro-lubricating intelligent nozzle system of the numerical control horizontal lathe based on the six-axis parallel platform comprises the following steps:

installing different sensors or signal receivers according to different processing modes, installing a vibration signal sensor and a signal transmitter when in fine processing, respectively installing the signal receiver and the angle detection sensor on two sides of the front end of the spray head, and respectively installing a temperature sensor and an angle detection sensor on two sides of the front end of the spray head if in rough processing;

during rough machining, after a turning tool contacts with a tool, a working area starts to generate high temperature, and a set of motion data is called from a position database according to machining working conditions to drive a spray head to spray;

acquiring a high-temperature signal through a temperature sensor, feeding the high-temperature signal back to a controller, marking a position signal in a database by the controller, and sending a signal to enable a spray head to be close to a working point if the temperature is higher than a predicted temperature; if the temperature is lower than the predicted temperature, the position of the spray head is unchanged, so that the optimal position for spraying is ensured;

during fine processing, the acoustic emission signal sensor collects signals, the signals are transmitted to the signal receiver by the signal transmitter, the obtained acoustic signals are transmitted to the filter by the signal receiver, the filtered signals are transmitted to the controller, and the controller adjusts the movement of the spray head according to the information to realize the adjustment of the temperature of a processing area;

when the position of the spray head is adjusted, the six-axis linkage platform changes the length of the telescopic pneumatic cylinder through the extension and contraction of the pneumatic cylinder piston, so that the adjustment of the spatial position of the spray head is realized.

The intelligent nozzle angle in this application can automatically regulated, and the regulation adjustment of its angle is mainly realized by six linkage platforms. Wherein six shaft linkage platforms comprise two parallel unable adjustment bases and six flexible pneumatic cylinders. The pneumatic cylinder adjusts the length of self through atmospheric pressure to make the shower nozzle angle of dress on unable adjustment base take place to deflect, angle inspection sensor data collection, ARM singlechip record data, and compare with database information, after adjusting, fixed shower nozzle angle. When the spray head can accurately aim at a constantly changing working area to spray cutting fluid, tracking continuous spraying can be realized, and waste and workpiece surface burn are avoided.

Compared with the prior art, the beneficial effect of this disclosure is:

the motor and the compressed air are matched for driving, the torque of the motor is reasonably adjusted by adjusting the effective duty ratio to control the screw rod structure to adjust the distance between the nozzle and a processing point in the transverse and longitudinal directions, and then the compressed air provides power for the air cylinder to adjust the injection angle of the nozzle and track the heat source. The device has the temperature sensor, can gather the processing data in real time, carries out reasonable adjustment through the angle of processing data to the shower nozzle, carries out rational configuration to the gas-liquid ratio to the guarantee shower nozzle sprays the processing work piece with reasonable angle, has replaced traditional cutting fluid shower nozzle rigid, and the problem that there is the dead angle in the face of being cut and the extravagant problem of cutting fluid has been solved to the limited defect of injection angle.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is an axial view of a multi-degree-of-freedom micro-lubrication intelligent nozzle system of a numerically controlled horizontal lathe based on a six-axis linkage platform according to an embodiment of the application;

2(a) -2 (c) are three views of the intelligent nozzle system according to the embodiment of the present application;

FIG. 3 is an exploded view of a lateral shifting portion of an exemplary embodiment of the present application;

FIG. 4 is an exploded view of the longitudinally extending and contracting part II according to the embodiment of the present application;

FIG. 5 is an isometric view of a bucket type fixed frame according to an embodiment of the present application;

FIG. 6(a) is a schematic view of a barrel-shaped fixing outer frame according to an embodiment of the present application;

FIGS. 6(B) and 6(c) are sectional views A-A, B-B of the barrel-shaped fixing outer frame according to the embodiment of the present application;

FIGS. 7(a) to 7(c) are two views and a cross-sectional view of a screw slider of a longitudinal expansion part according to an embodiment of the present application;

FIG. 8 is a front view and a cross-sectional view of a longitudinal expansion section view of an example embodiment of the present application;

FIG. 9 is an exploded view of a rotating portion according to an exemplary embodiment of the present disclosure;

FIG. 10(a) is an assembly view of the longitudinal expansion and contraction part and the rotation part according to the embodiment of the present application;

FIG. 10(b) is an assembly view of the longitudinal expansion part and the rotation part E-E of FIG. 10(a) according to the embodiment of the present application;

fig. 11(a) -11 (h) are partial enlarged sectional views of the longitudinal expansion part and the rotation part in fig. 10(b) according to the embodiment of the present application;

FIG. 12 is an isometric view of a rotary part housing according to an example embodiment of the present application;

fig. 13(a) to 13(b) are a front view and a sectional view, respectively, of a rotary unit housing according to an embodiment of the present invention;

FIG. 14 is a front view and a cross-sectional view of an end cap on a rotating portion according to an example of the present application;

FIG. 15 is a front view and a cross-sectional view H-H of a lower end cap of a rotating portion according to an exemplary embodiment of the present invention;

FIG. 16 is an isometric view of a six-axis linkage platform according to an exemplary embodiment of the present disclosure;

FIG. 17 is an exploded view of a six-axis linkage platform according to an exemplary embodiment of the present disclosure;

FIGS. 18(a) -18 (b) are front and cross-sectional views of a showerhead holding plate according to an embodiment of the present application;

FIG. 19 is a front view and a sectional view of a telescopic cylinder according to an embodiment of the present invention

FIGS. 20(a) -20 (b) are front and cross-sectional views of the showerhead;

FIG. 21 is a schematic diagram of a cooling system of an intelligent sprinkler system in accordance with an exemplary embodiment of the present application;

FIG. 22 is a graph illustrating heat source tracking for an intelligent sprinkler system in accordance with an exemplary embodiment of the present application;

FIG. 23 is a schematic diagram of a heat source tracking system for an intelligent sprinkler system in accordance with an exemplary embodiment of the present application;

FIG. 24 is a flow chart illustrating spatial position adjustment of an intelligent sprinkler system according to an exemplary embodiment of the present disclosure;

FIG. 25 is a schematic diagram illustrating spatial position adjustment of an intelligent sprinkler system according to an exemplary embodiment of the present disclosure;

in the figure, a transverse moving part I, a longitudinal telescopic part II, a rotating part III, a six-axis linkage platform IV and an information acquisition system V are arranged;

the device comprises an L-shaped fixed support I-1, a first bearing I-2, a first bolt I-3, a guide wheel I-4, a first lead screw sliding block I-5, a first lead screw sliding rod I-6, a first coupler I-7, a second bolt I-8, a first motor I-9 and a third bolt I-10;

the device comprises a barrel-shaped fixed outer frame II-1, a slide way II-2, a fourth bolt II-3, a straight countersunk head bolt II-4, a second coupler II-5, a guide slide rod II-6, a guide slide block II-7, a fixed lower end cover II-8, a second motor II-9, a fifth bolt II-10, a first 90-degree angle iron sheet II-11, a sixth bolt II-12, a first nut II-13, a second lead screw slide block II-14, a second lead screw slide rod II-15 and a second bearing II-16;

the rotating part comprises a rotating part shell III-1, a first thrust ball bearing III-2, an upper end cover III-3, an outer gear ring III-4, a first inner hexagon bolt III-5, a seventh bolt III-6, a third motor III-7, an eighth bolt III-8, a second 90-degree angle iron sheet III-9, a gear III-10, a second nut III-11, a second thrust ball bearing III-12, an eighth bolt III-13 and a lower end cover III-14;

the device comprises a telescopic pneumatic cylinder IV-1, a Hooke hinge IV-2, a spherical hinge IV-3 and a spray head fixing platform IV-4;

the device comprises a temperature sensor V-1, an angle detection sensor V-2, a sensor wire outlet hole V-3, a screw hole V-4, a gas pipe V-5, a liquid pipe V-6, a magnetic ring V-7, a first sealing ring V-8, a first cylinder rear end cover V-9, a second sealing ring V-10, a piston rod V-11, a second cylinder rear end cover V-12 and a gas hole V-13.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

FIG. 1 is an axial view of a six-degree-of-freedom micro-lubrication intelligent nozzle system of a horizontal lathe. Fig. 2(a) -2 (c) are three views of the horizontal lathe multi-degree-of-freedom micro-lubrication intelligent nozzle system, wherein fig. 2(a) is a front view, fig. 2(b) is a left view, and fig. 2(c) is a top view.

As shown in fig. 1 and fig. 2(a) -2 (c), the horizontal lathe six-degree-of-freedom micro-lubrication intelligent nozzle system comprises a transverse moving part I, a longitudinal telescopic part II, a rotating part III, a six-axis linkage platform IV and an information acquisition system V.

FIG. 3 is an exploded view of a lateral moving part including an L-shaped fixed bracket I-1, a first bearing I-2, a first bolt I-3, a guide wheel I-4, a first lead screw slider I-5, a first lead screw slide bar I-6, a first coupler I-7, a second bolt I-8, a first motor I-9, and a third bolt I-10.

The transverse moving part is fixed on one side of a slide carriage of the horizontal lathe through a bolt, the first lead screw slide bar I-6 is parallel to the longest edge of the slide carriage, when the transverse moving part is opposite to the lathe, the vertical direction taking the upper right corner of the slide carriage cuboid as a vertex is taken as a Z axis, the direction of the longest edge of the slide carriage is taken as an X axis, and the middle long edge is taken as a Y axis. The transverse moving pair provides power for a lead screw system through a first motor I-9, and the lead screw system consists of a guide wheel I-4, a first lead screw sliding block I-5, a first lead screw sliding rod I-6, a first coupler I-7 and a second bolt I-8. The first lead screw slide block I-5 is provided with a screw hole for fixing the barrel-shaped fixed outer frame II-1. The first motor I-9 is fixed on the L-shaped fixed support I-1 through a bolt I-10.

The first motor I-9 provides power for the whole intelligent spray head to move transversely, and the first lead screw sliding block I-5 moves above the horizontal lathe along the guide sliding rod on the first lead screw sliding rod I-6.

Fig. 4 is an exploded view of the longitudinally extending portion II. The longitudinal telescopic part II comprises a barrel-shaped fixed outer frame II-1, a slide way II-2, a fourth bolt II-3, a straight countersunk head bolt II-4, a second coupler II-5, a guide slide rod II-6, a guide slide block II-7, a fixed lower end cover II-8, a second motor II-9, a fifth bolt II-10, a first 90-degree angle iron sheet II-11, a sixth bolt II-12, a first nut II-13, a second lead screw slide block II-14, a second lead screw slide rod II-15 and a second bearing II-16.

Four corners of a barrel-shaped fixed outer frame II-1 are provided with through holes for connecting with a guide slide block II-7, screw holes are arranged in the screw holes and positioned on the side wall of the frame for fixing a screw rod system (a second coupler II-5, a guide slide rod II-6, a guide slide block II-7 and a second bearing II-16), screw holes are arranged in the screw holes and positioned on the top of the frame for fixing the guide slide rod II-6, a screw rod system and three guide slide rods II-6 are arranged in a longitudinal expansion part, a second screw rod slide block II-14 and three guide slide blocks II-7 are correspondingly arranged, the four screw rod systems are connected with a rotating part shell III-1 through bolts for fixing the rotating part and reducing friction through a slide way II-2, and the slide way II-2 and the guide slide rod II-6 guide the longitudinal.

The second motor II-9 provides power for longitudinal movement of the whole intelligent spray head, and the second lead screw sliding block II-14 moves on the second lead screw sliding rod II-15 in the vertical direction along the guide sliding rod II-6.

Fig. 5 is an isometric view of a barrel-type fixing frame, and fig. 6(a) is a schematic view of a barrel-type fixing outer frame according to an embodiment of the present application; fig. 6(B) and 6(c) are sectional views a-A, B-B of the barrel-shaped fixing outer frame, the shell of the longitudinal expansion part is cylindrical, one end of the barrel-shaped fixing frame II-1 is provided with four through holes, the barrel-shaped fixing frame II-1 is connected with the transverse moving part by matching bolts, and the side wall and the top wall of the fixing frame are provided with multiple screw holes for installing a motor, a slide way, a lower end cover, a slide rod and other parts.

Fig. 7(a) -7 (c) are two views and a cross section respectively of a screw slider of a longitudinal expansion part of an embodiment of the present application, the screw slider is a non-standard component, a connecting part of the screw slider and a rotating part housing III-1 is an arc surface, the connecting part is just attached to the rotating part housing III-1, two screw holes are arranged on a center line of the arc surface, and the rotating part housing III-1 and a second screw slider II-15 are connected through bolts.

FIG. 8 is a front view and a sectional view of the slideway of the longitudinal expansion part, the section of the slideway II-2 is in a flat-head shuttle shape, two counter bores are arranged on the slideway II-2, the slideway II-2 is fixed on a barrel-shaped fixed frame II-1 through counter bores bolts, and the slideway II-2 has the functions of fixing equipment and reducing friction force.

FIG. 9 is an exploded view of a rotating part, and FIG. 10(a) is an assembly view of a longitudinally extendable part and a rotating part according to an embodiment of the present invention; FIG. 10(b) is an assembly view of the longitudinal expansion part and the rotation part E-E of FIG. 10(a) according to the embodiment of the present application; FIGS. 11(a) -11 (h) are partial enlarged sectional views of the longitudinal telescopic part and the rotating part shown in FIG. 10(b) according to the embodiment of the present application, and an exploded view of the rotating part III includes a rotating part housing III-1, a first thrust ball bearing III-2, an upper end cap III-3, an outer ring gear III-4, a first hexagon socket head cap screw III-5, a seventh bolt III-6, a third motor III-7, an eighth bolt III-8, a second 90-degree angle iron sheet III-9, a gear III-10, a second nut III-11, a second thrust ball bearing III-12, an eighth bolt III-13, and a lower end cap III-14.

It can be seen that the driving force required for the rotation of the rotating part is provided by the third motor III-7, and the third motor III-7 is fixed to the inner wall of the rotating part housing III-1 by the second 90 degree angle iron piece III-9 through the eighth bolt III-8. The power of the third motor III-7 is transmitted by the meshing of the gear III-10 and the external gear ring III-4. The rotating part shell III-1, the first thrust ball bearing III-2, the upper end cover III-3, the second thrust ball bearing III-12 and the lower end cover III-14 form a rotating platform to receive rotating force transmitted by the outer gear ring III-4 and realize rotation of the rotating part. Wherein the upper end cover III-3 and the lower end cover III-14 are connected through an inner hexagon bolt III-5. And a third motor III-7 provides rotary power for the intelligent spray head system, so that the spray head can rotate in an XY plane.

Fig. 12 is an isometric view of a rotary unit housing, and fig. 13(a) -13 (b) are front and cross-sectional views, respectively, of the rotary unit housing according to an embodiment of the present disclosure, wherein the rotary unit housing has 4 pairs of counter bores on an inner wall thereof for connecting a lead screw slider and a guide slider. The inner wall is provided with a rectangular small platform for mounting a third motor III-7, and the bottom end of the outer shell of the rotating part is provided with two groups of shaft shoulders for mounting a first thrust ball bearing III-2 and a second thrust ball bearing III-12 to form a rotating pair so as to realize the rotating action of the rotating part.

Fig. 14 is a front view and a sectional view of the cover on the rotary unit. The upper end cover is a porous part, wherein the outer ring is provided with 4 large counter bores, and is connected with the lower end cover III-14 through hexagon socket head cap bolts; the inner ring is a small screw hole, and the outer gear ring III-4 is fixed on the upper end cover III-3 through an inner hexagon bolt.

Fig. 15 is a front view and a sectional view H-H of the lower cover of the rotary unit. As shown in the figure, the lower end cover III-14 is a part which is opened from the top and is provided with a plurality of holes, a deep screw hole is used for connecting with the upper end cover, and a small screw hole is used for installing a Hooke's joint IV-2. The rotating part is a hollow part, and the middle part can be used for routing.

Fig. 16 is an axial view of a six-axis linkage platform, and fig. 17 is an exploded view of the six-axis linkage platform. The six-axis linkage platform system comprises a telescopic pneumatic cylinder IV-1, a Hooke hinge IV-2, a spherical hinge IV-3 and a spray head fixing platform IV-4. The six-axis linkage platform consists of an upper part and a lower part, wherein the upper part is a fixed end, namely a base of the rotating part, the lower part is an adjusting end, and the angle of the nozzle is adjusted by adjusting the length of the telescopic pneumatic cylinder IV-1 so as to track a heat source. The lower part also comprises a temperature sensor V-1 and an angle detection sensor V-2, and the temperature sensor V-1 collects temperature difference signals so as to adjust the gas-liquid ratio and realize the cooling effect. Meanwhile, the temperature sensor can acquire heat source signals and feed the signals back to the ARM single chip microcomputer, and heat source tracking is achieved through the cooperation of the angle detection sensor.

FIGS. 18(a) -18 (b) are the front view and the sectional view of the telescopic pneumatic cylinder, and the pneumatic cylinder comprises a magnetic ring V-7, a first sealing ring V-8, a first cylinder rear end cover V-9, a second sealing ring V-10, a piston rod V-11, a second cylinder rear end cover V-12 and an air hole V-13. The six-axis linkage platform changes the length of the connecting rod group through the extension and retraction of the pneumatic cylinder piston, so that the adjustment of the spatial position of the spray head is realized. The magnetic ring V-7 is used for controlling and recording the position of the piston rod V-11 and feeding back information to the ARM single chip microcomputer.

Fig. 19 is a front view and a cross-sectional view of a nozzle fixing platform, wherein four counter bores are formed in the nozzle fixing platform for fixing a nozzle, and six screw holes are formed in the nozzle fixing platform for mounting a ball hinge IV-3.

Fig. 20(a) -20 (b) are front and cross-sectional views of the nozzle, wherein two sensors, namely a temperature sensor V-1 and an angle detection sensor V-2, are respectively arranged on two sides of the nozzle and are fixed at the front end of the nozzle through threads, and two sensor outlet holes V-3 are additionally arranged at the bottom of a screw hole so as to facilitate the installation and fixation of the sensors. The outer side of the spray head is uniformly provided with 4 screw holes V-4 for fixing the spray head on a spray head fixing ring IV-2. The spray head is a two-phase spray head, and an air pipe V-5 and a liquid pipe V-6 are arranged in the spray head and are converged at the front end of the spray head to generate a gas-liquid mixture for cooling and lubricating working points. The gas-liquid ratio can be adjusted through information fed back by the temperature sensor V-1, and a reasonable and proper amount of gas-liquid mixture is generated. Besides the temperature sensor, the spray head can also be provided with a signal receiver.

Fig. 21 is a schematic diagram of temperature adjustment in the first embodiment, in which the intelligent nozzle system is started simultaneously with the lathe, the lathe processing program is simultaneously imported into the database, and the database fits a set of reasonable processing temperature curves according to the processing program. During processing, the temperature sensor collects the temperature during processing in real time and feeds the temperature back to the ARM single chip microcomputer, and the ARM single chip microcomputer transmits the information after being processed by two paths: one path of the gas-liquid ratio is transmitted to a gas-liquid ratio regulating valve to regulate the temperature of a processing area, so that the cooling effect is realized; one path of information is transmitted into a computer information storage area, and a database is enriched. The adjustment of the gas-liquid ratio adjusting valve is dynamic, namely when heat is rapidly accumulated at a certain point, the liquid flow can be increased, and the temperature of a high-temperature area is reduced. When the flow is too large, the cooling effect is obvious, and when the temperature is matched with data in the database, the temperature sensor feeds the temperature signal back to the ARM single chip microcomputer, and the ARM single chip microcomputer sends a signal to the gas-liquid ratio regulating valve, so that the opening degree is reduced, the flow of cutting fluid is reduced, and the saving effect is realized.

Fig. 22 to 23 are a graph and a schematic diagram of a heat source tracking system, as shown in the figure, an ARM single-chip microcomputer divides a temperature range for a temperature sensor, that is, a minimum temperature standard is set, when the temperature sensor detects a heat source higher than a set temperature, the temperature sensor collects the position of a high-temperature region and feeds back the position information to the ARM single-chip microcomputer, and the ARM single-chip microcomputer sends a signal to a driving unit according to the collected position information, and realizes tracking of the position of the heat source by adjusting an effective duty ratio of voltage. The driving unit comprises two parts, one part consists of a transverse moving part, a longitudinal telescopic part and a rotating part and is used for large-space displacement of the spray head in the space of the horizontal lathe; the other part is composed of a six-axis linkage platform, and the length of the connecting rod group is changed by opening or closing an air pressure valve of compressed air, so that the position angle of the nozzle is realized, the optimal position injection is realized, and the practice is energy-saving and environment-friendly.

Fig. 24-25 show a flow chart and a schematic diagram for adjusting the spatial position of the embodiment of the present application, in which the position of the heat source is determined by the temperature sensor, the data is imported into the ARM single chip microcomputer and the existing database for comparison, the positive solution is obtained according to the specific working condition and the maximum displacement distance of the device, and the length of the connecting rod group is changed by opening or closing the pneumatic valve of the compressed air, so as to change the spatial position coordinates of the nozzle.

In this embodiment, a temperature database and a position database are provided in the computer to control the temperature signal. The intelligent nozzle system is started simultaneously along with the lathe, the lathe machining program is simultaneously led into the database, and the database fits a set of reasonable machining temperature curve according to the machining program. During processing, the temperature sensor collects the temperature during processing in real time and feeds the temperature back to the ARM single chip microcomputer, and the ARM single chip microcomputer transmits the information after being processed by two paths: one path of the gas-liquid ratio is transmitted to a gas-liquid ratio regulating valve to regulate the temperature of a processing area, so that the cooling effect is realized; one path of information is transmitted into a computer information storage area, and a database is enriched.

In order to realize the mechanical movement of the position of the spray head, the transverse moving part is composed of an L-shaped fixed bracket and a lead screw system, and power required by transverse movement is provided for the lead screw through a stepping motor. The longitudinal telescopic part consists of a barrel-shaped fixed frame and a lead screw system, wherein the lead screw consists of a power lead screw and three auxiliary slide bars. The rotating part is composed of a barrel-shaped fixed outer frame and a rotating platform, wherein the rotating platform is driven by a motor and is driven by a gear and a gear ring. The six-axis linkage platform consists of two parallel fixed bases and six telescopic pneumatic cylinders for adjusting angles. The position of the spray head can be changed through the set of motion system, and an equipment foundation is provided for heat source tracking.

After the lathe tool contacts with the tool, the working area begins to generate high temperature, the mechanical motion system calls a set of motion data from the position database according to the processing working condition, the position of the spray head is corrected through a high-temperature signal acquired by the temperature sensor, and the spray at the optimal position is ensured so as to realize the cooling effect.

This application can realize taking different sensors of installation or signal receiver according to the difference of processing mode, like: a vibration signal sensor and a signal emitter are used for finish machining, and an infrared thermal imager and an angle detection sensor are used for rough machining. The former can feed back distance signals and carry out certain adjustment, and the latter directly calls position information in the ARM single chip microcomputer, but the precision is lower.

In another embodiment of the present application, based on the first embodiment, the temperature sensor is removed, the signal receiver is replaced, and the acoustic emission (force, vibration) signal sensor and the signal transmitter are installed on the rear side of the lathe spindle, and the acoustic emission (force, vibration) data in the database is called.

The sensor collects sound (force, vibration) signals, the sound (force, vibration) signals are transmitted to the signal receiver by the signal transmitter, and the signal receiver transmits the obtained sound signals to the filter to filter disordered signals. The filtered signal is transmitted to an ARM single chip microcomputer, the ARM single chip microcomputer processes the information and then transmits the processed information out in two paths, wherein one path of the processed information is transmitted to a gas-liquid ratio regulating valve to regulate the temperature of a processing area, and the cooling effect is realized; one path of information is transmitted into a computer information storage area, and a database is enriched. After the lathe tool contacts with the tool, the working area begins to generate sound (force, vibration) signals, the mechanical motion system calls a set of motion data from the position database according to the processing working condition, the position of the spray head is corrected through the high-temperature signals collected by the sound (force, vibration) sensor, and the spray at the optimal position is ensured so as to realize the cooling effect.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. Numerical control horizontal lathe micro-lubricating intelligent nozzle system based on six-axis linkage platform, characterized by including: the horizontal moving part, the vertical telescopic part, the rotating part and the six-axis linkage platform;

the transverse moving part is connected with the longitudinal telescopic part and provides power required by transverse movement for the longitudinal telescopic part, so that the longitudinal telescopic part can move horizontally;

a rotating part is arranged in the longitudinal telescopic part, so that the rotating part can move longitudinally;

the rotating part is connected with a six-axis linkage platform, the six-axis linkage platform consists of two parallel fixed bases and six telescopic pneumatic cylinders for adjusting the angle of the spray head, the rotating part drives the six-axis linkage platform to rotate, and the spray head is arranged on the six-axis linkage platform;

the spray head is provided with detection equipment, and the movement of the transverse moving part, the longitudinal telescopic part, the rotating part and the six-axis linkage platform is adjusted according to temperature data detected by the detection equipment, so that the spray head can continuously track and spray the horizontal lathe;

six linkage platforms include six flexible pneumatic cylinders, and the one end of every flexible pneumatic cylinder is connected to the rotating part lower extreme cover through the hooke hinge, and the other end is connected to shower nozzle fixed platform, shower nozzle fixed platform is connected to the shower nozzle, adjusts the angle of shower nozzle through the length of adjusting flexible pneumatic cylinder.

2. The micro-lubricating intelligent spray head system of the numerical control horizontal lathe based on the six-axis linkage platform is characterized in that the transverse moving part is fixed on one side of a slide carriage of the horizontal lathe and comprises an L-shaped fixed support and a transverse lead screw system, and power required by transverse movement is provided for a lead screw through a first motor;

the transverse lead screw system consists of a guide wheel, a lead screw sliding block, a lead screw sliding rod and a coupler, wherein the output end of the first motor is connected to the coupler, the coupler is connected with one end of the lead screw sliding rod, and the other end of the lead screw sliding rod is fixed on the L-shaped fixed support through a bearing; the lead screw sliding rod is provided with a lead screw sliding block;

the screw rod sliding block is provided with a screw hole for fixing the longitudinal telescopic part, and the first motor is fixed on the L-shaped fixing support.

3. The micro-lubrication intelligent nozzle system of the numerically controlled horizontal lathe based on the six-axis linkage platform as claimed in claim 1, wherein the longitudinal expansion part is composed of a barrel-shaped fixed outer frame, a longitudinal lead screw system and a plurality of guide slide bars, and the upper end of the barrel-shaped fixed outer frame is fixed on a lead screw slide block of the transverse moving part; the guide sliding rod moves in the slide way, and the slide way is arranged on the barrel-shaped fixed outer frame.

4. The micro-lubrication intelligent spray head system of the numerical control horizontal lathe based on the six-axis linkage platform as claimed in claim 3, wherein the lead screw slide bars of the longitudinal lead screw system are connected with corresponding lead screw slide blocks, and the guide slide bars are connected with corresponding guide slide blocks; and a lead screw slide rod and a guide slide rod of the longitudinal lead screw system are connected to the rotating part.

5. The intelligent micro-lubrication sprayer system for the numerically controlled horizontal lathe based on the six-axis linkage platform as claimed in claim 4, wherein the part of the lead screw slider connected with the rotating part is an arc surface, and the rotating part is connected with the lead screw sliding rod.

6. The intelligent micro-lubrication sprayer system of the numerically controlled horizontal lathe based on the six-axis linkage platform as claimed in claim 1, wherein the rotating part comprises a rotating platform consisting of a rotating part shell, a first thrust ball bearing, an upper end cover, a second thrust ball bearing and a lower end cover, two sets of shaft shoulders are arranged at the bottom end of the rotating part shell and used for mounting the first thrust ball bearing and the second thrust ball bearing to form a rotating pair so as to realize the rotation of the rotating part, and the upper end cover and the lower end cover are respectively and correspondingly fixed at the upper end and the lower end of the rotating part shell; a gear ring is fixed on the upper end cover; the lower end cover is connected to the six-axis linkage platform;

the inner wall of the rotating part shell is fixed with a rotating motor, and the rotating platform is driven by the rotating motor and is driven by a gear and a gear ring.

7. The intelligent micro-lubrication sprayer system for the numerically controlled horizontal lathe based on the six-axis linkage platform as claimed in claim 1, wherein the two sides of the front end of the sprayer are respectively provided with a temperature sensor and an angle detection sensor, the sprayer is a two-phase sprayer, an air pipe and a liquid pipe are arranged in the sprayer, the two are converged at the front end of the sprayer to generate a gas-liquid mixture for cooling and lubricating an operating point, and the gas-liquid ratio can be adjusted through information fed back by the temperature sensor to generate a proper amount of gas-liquid mixture.

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