CN111872463A

CN111872463A - Backflow type cooling oil circuit system of numerical control milling machine

Info

Publication number: CN111872463A
Application number: CN202010723295.0A
Authority: CN
Inventors: 邱晨健; 程东华; 程士弟
Original assignee: Hexian Longsheng Precision Machinery Co ltd
Current assignee: Hexian Longsheng Precision Machinery Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2020-11-03
Anticipated expiration: 2040-07-24
Also published as: CN111872463B

Abstract

The invention discloses a reflux type cooling oil circuit system of a numerical control milling machine, which belongs to the technical field of cooling oil circuits and comprises a milling machine, a transmission mechanism and a milling cutter, wherein the milling machine is respectively provided with the transmission mechanism and an oil circuit reflux mechanism, the milling cutter is connected with the output end of the transmission mechanism, a pipeline connected with the transmission mechanism is connected with a filtering mechanism, oil passing through the filtering mechanism flows into the oil circuit reflux mechanism, cooling liquid in the oil circuit reflux mechanism reduces the temperature of the oil and is pumped and sent into the transmission mechanism, the oil passing through the filtering mechanism flows into the oil circuit reflux mechanism, the oil in the transmission mechanism flows into the oil circuit reflux mechanism after being filtered by the filtering mechanism, the cooling liquid in the oil circuit reflux mechanism reduces the temperature of the oil and is pumped and sent into the transmission mechanism, the integral reflux type cooling improves the cooling efficiency, and the filtering effect of equipment is improved by, avoiding disassembling the equipment inside the milling machine.

Description

Backflow type cooling oil circuit system of numerical control milling machine

Technical Field

The invention relates to the technical field of cooling oil ways, in particular to a backflow type cooling oil way system of a numerical control milling machine.

Background

Milling machines (millingmachines) are generally machines for machining various surfaces of workpieces with milling cutters. Typically the milling cutter is moved primarily in a rotary motion and the movement of the workpiece and the milling cutter is a feed motion. It can be used for processing plane, groove, various curved surfaces and gears. The milling machine is a machine tool for milling a workpiece by using a milling cutter. The milling machine can mill planes, grooves, gear teeth, threads and spline shafts, can also process complex molded surfaces, has higher efficiency than a planer, and is widely applied to mechanical manufacturing and repairing departments.

The milling machine is a machine tool with wide application, and can process planes (horizontal planes and vertical planes), grooves (key grooves, T-shaped grooves, dovetail grooves and the like), tooth dividing parts (gears, spline shafts and chain wheels), spiral surfaces (threads and spiral grooves) and various curved surfaces on the milling machine. In addition, the method can be used for machining the surface and inner hole of the revolving body, cutting off the revolving body, and the like. When the milling machine works, a workpiece is arranged on a workbench or accessories such as an indexing head, the milling cutter rotates to move mainly, and the workpiece can obtain a required processing surface by the aid of the feeding motion of the workbench or the milling head. Since the multi-edge intermittent cutting is performed, the productivity of the milling machine is high.

The pivot of milling machine is rotating for a long time, and the rotation between main shaft and each gear is connected and will be made the milling machine pivot heat up, and if the pivot is under the high temperature environment for a long time, the fatigue strength of pivot will probably be accelerated, so need do cooling treatment for the milling machine pivot, people often set up the oil circuit in milling machine inside and cool down, but the efficiency of cooling will greatly be influenced in the setting of oil circuit structure.

Application No.: CN201911169870.0 provides an automatic change numerically controlled fraise machine's cooling oil circuit structure, through the outside water tank that installs additional of cooling tank, make to cool off the cooling oil of pivot and gear wheel and carry out rapid cooling, circulating pipe has also been connected on the surface of external oil transportation circulating line, through the oil pump, the external circulation of oil and water has been realized to the water pump, under the dual cycle of external space and cooling water, the purpose of rapid cooling fluid has been realized, the problem that traditional milling machine oil circuit cooling effect is poor has been solved.

But to having the piece in the inside fluid and not setting up filtration equipment, long-time use can lead to the pipeline to take place to block up to influence its effect of cooling.

Disclosure of Invention

The invention aims to provide a reflux type cooling oil circuit system of a numerical control milling machine, which improves the cooling efficiency through integral reflux type cooling, improves the filtering effect of equipment through a detachable filtering device, avoids the disassembly of the equipment in the milling machine and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a backflow type cooling oil circuit system of a numerical control milling machine comprises a milling machine, a transmission mechanism and a milling cutter, wherein the transmission mechanism and an oil circuit backflow mechanism are respectively installed on the milling machine, the milling cutter is connected with the output end of the transmission mechanism, a pipeline connected to the transmission mechanism is connected with a filtering mechanism, oil passing through the filtering mechanism flows into the oil circuit backflow mechanism, and cooling liquid in the oil circuit backflow mechanism reduces the temperature of the oil and is pumped into the transmission mechanism.

Furthermore, the transmission mechanism comprises a support frame, a transmission shell and a circular truncated cone-shaped tooth, the support frame is fixed on the transmission shell, the circular truncated cone-shaped tooth is coated by a bearing of the support frame, and an output end, located outside the transmission shell, of the circular truncated cone-shaped tooth is connected with the milling cutter.

Furthermore, the filtering mechanism comprises a filtering shell, a liquid outlet pipe, an inserting cylinder, a limiting ring and a filtering ring, wherein an inserting hole with internal threads is formed in the right side of the filtering shell, one end of the liquid outlet pipe extends into the transmission shell, and the other end of the liquid outlet pipe penetrates through the filtering shell and extends to the outside from the inserting hole;

insert the fixed spacing ring of a section of thick bamboo outer wall, insert and install the filter ring on the opening border of a section of thick bamboo, filter ring and the external connection of drain pipe, insert a section of thick bamboo and jack meshing to the cover is in the outside of drain pipe, and wherein the spacing ring supports the outside at the filter shell.

Furthermore, the oil circuit backflow mechanism comprises a cooling shell, a heat exchange tube, a pump body and a backflow tube, wherein two ends of the heat exchange tube are inserted into openings at the top and the bottom of the cooling shell, a port of the heat exchange tube at the top is communicated with the filtering shell, a port of the heat exchange tube at the bottom is connected with the external pump body, an output port of the pump body is connected with the backflow tube, and the other end of the backflow tube is inserted into the transmission shell.

Further, insert a section of thick bamboo for one end opening, the closely knit component of one end, wherein insert and process the external screw thread on the outer wall of a section of thick bamboo to insert a section of thick bamboo and process into the magnet of annular distribution along the inside of global, the distance between the closely knit port of the port of drain pipe and the section of thick bamboo of inserting is not less than 3cm moreover.

Furthermore, a cooling liquid inlet pipe and a cooling liquid outlet pipe are respectively connected to the side part of the cooling shell, and the cooling liquid inlet pipe is used for cooling the cooling liquid flowing into the cooling shell after temperature reduction and discharging the cooling liquid from the cooling liquid outlet pipe after heat exchange with high-temperature oil in the heat exchange pipe.

Furthermore, the inserting cylinder can be a cylindrical component, a truncated cone at one end and a cylindrical component at one end, wherein the end of the cone is close to the port of the liquid outlet pipe, the magnetic force of the magnet is increased along the flaring part of the cone, and the magnetic force at the cylindrical position is the same.

Compared with the prior art, the invention has the beneficial effects that: according to the backflow type cooling oil path system of the numerical control milling machine, the transmission mechanism changes the transmission direction through the circular truncated cone-shaped teeth, high temperature is generated due to high-speed rotation of the gear in the process of power transmission, the circular truncated cone-shaped teeth are protected by high temperature which needs to be taken away by injecting oil into the transmission mechanism, the oil passing through the filtering mechanism flows into the oil path backflow mechanism, the oil in the transmission mechanism flows into the oil path backflow mechanism after being filtered by the filtering mechanism, the temperature of the oil is reduced by cooling liquid in the oil path backflow mechanism, the cooling liquid is pumped and sent into the transmission mechanism, the oil discharged by the liquid outlet pipe flows into the cooling shell after being discharged from the filtering ring, the broken bits in the oil are magnetically adsorbed by the annular magnet arranged in the transmission mechanism, after long-time use, the insert cylinder is taken down to clean the iron chips in the oil, and the filtering effect of the insert; wherein the coolant liquid that sets up advances the pipe and the coolant liquid exit tube lets the continuous circulation of coolant liquid in the cooling shell, the coolant liquid that is located the cooling shell exchanges the heat with the heat exchange tube, reduce the temperature of the inside fluid of heat exchange tube after the heat exchange, and discharge from the coolant liquid exit tube, coolant liquid after the reduction in temperature advances the pipe from the coolant liquid and flows in the cooling shell, continue to exchange the heat to the heat exchange tube, whole backward flow formula cooling improves refrigerated efficiency, and through detachable filter equipment, improve the filterable effect of equipment, avoid dismantling the inside equipment of milling machine.

Drawings

FIG. 1 is a side view of a milling machine of the present invention;

FIG. 2 is an elevation view of the milling machine of the present invention;

FIG. 3 is a perspective connection view of the oil path return mechanism, the filter mechanism and the oil path return mechanism of the present invention;

FIG. 4 is a cross-sectional connection view of the oil return mechanism, the filter mechanism and the oil return mechanism of the present invention;

FIG. 5 is a block diagram of the filter mechanism of the present invention;

fig. 6 is a structural view of still another embodiment of the cartridge of the present invention.

In the figure: 1. milling machine; 2. a transmission mechanism; 21. a support frame; 22. a drive housing; 23. a truncated cone-shaped tooth; 3. an oil circuit backflow mechanism; 31. cooling the shell; 311. a cooling liquid inlet pipe; 312. a coolant outlet pipe; 32. a heat exchange pipe; 33. a pump body; 34. a return pipe; 4. a filtering mechanism; 41. a filter shell; 411. a jack; 42. a liquid outlet pipe; 43. inserting a cylinder; 44. a limiting ring; 45. a filter ring; 5. provided is a milling cutter.

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.

The first embodiment is as follows:

referring to fig. 1-3, a reflux cooling oil circuit system of a numerical control milling machine comprises a milling machine 1, a transmission mechanism 2 and a milling cutter 5, wherein the milling machine 1 is respectively provided with the transmission mechanism 2 and an oil circuit reflux mechanism 3, the milling cutter 5 is connected with the output end of the transmission mechanism 2, the transmission mechanism 2 is used as a medium for transmitting the power of a driving device to the milling cutter 5, the milling cutter 5 processes the surface of a workpiece on the milling machine 1, a pipeline connected with the transmission mechanism 2 is connected with a filter mechanism 4, the transmission mechanism 2 changes the transmission direction through a circular truncated cone-shaped tooth 23, during the power transmission process, the high-speed rotation of a gear generates high temperature, the high temperature generated by injecting oil into the transmission mechanism 2 to take away the high temperature protection circular truncated cone-shaped tooth 23, the oil passing through the filter mechanism 4 flows into the oil circuit reflux mechanism 3, the oil in the transmission mechanism 2 flows into the oil circuit reflux mechanism 3 after, the cooling liquid in the oil way backflow mechanism 3 reduces the temperature of the oil liquid, and the oil liquid is pumped and sent into the transmission mechanism 2.

Referring to fig. 4, the transmission mechanism 2 includes a support frame 21, a transmission housing 22 and a circular truncated cone-shaped tooth 23, the support frame 21 is fixed on the transmission housing 22, the support frame 21 and the transmission housing 22 are perpendicular to each other, a bearing penetrating through the support frame 21 is provided in the support frame 21, the circular truncated cone-shaped tooth 23 is covered by the bearing of the support frame 21, an output end of the circular truncated cone-shaped tooth 23 located outside the transmission housing 22 is connected with the milling cutter 5, and the circular truncated cone-shaped tooth 23 drives the.

The oil circuit backflow mechanism 3 comprises a cooling shell 31, a heat exchange pipe 32, a pump body 33 and a backflow pipe 34, wherein two ends of the heat exchange pipe 32 are inserted into openings at the top and the bottom of the cooling shell 31, a port of the heat exchange pipe 32 at the top is communicated with a filter shell 41, the heat exchange pipe 32 is in a thread shape, a port of the heat exchange pipe 32 at the bottom is connected with the pump body 33 at the outside, negative pressure generated after the pump body 33 works extracts oil in the heat exchange pipe 32, the filter shell 41 and a transmission shell 22, an output port of the pump body 33 is connected with the backflow pipe 34, the other end of the backflow pipe 34 is inserted into the transmission shell 22, the backflow pipe 34 is used for backflow of the cooled oil into the transmission shell 22 to continuously reduce the temperature of a gear, a cooling liquid inlet pipe 311 and a cooling liquid outlet pipe 312 are respectively connected to the side part of the cooling shell 31, the cooling liquid inlet pipe 311 is used for flowing into the cooling shell, the cooling liquid inlet pipe 311 and the cooling liquid outlet pipe 312 are arranged to enable the cooling liquid in the cooling shell 31 to continuously circulate, the cooling liquid in the cooling shell 31 exchanges heat with the heat exchange pipe 32, the temperature of the oil liquid in the heat exchange pipe 32 is reduced after heat exchange, the oil liquid is discharged from the cooling liquid outlet pipe 312, and the cooling liquid with the reduced temperature flows into the cooling shell 31 from the cooling liquid inlet pipe 311 to continuously exchange heat with the heat exchange pipe 32.

Referring to fig. 5, the filter mechanism 4 includes a filter housing 41, a liquid outlet pipe 42, an insert cylinder 43, a limiting ring 44 and a filter ring 45, wherein an insert hole 411 with internal threads is formed on the right side of the filter housing 41, one end of the liquid outlet pipe 42 extends into the transmission housing 22, the other end of the liquid outlet pipe passes through the filter housing 41 and extends from the insert hole 411 to the outside, and a part of the liquid outlet pipe 42 is exposed outside the filter housing 41;

a limiting ring 44 is fixed on the outer wall of the inserting cylinder 43, a filter ring 45 is installed on the opening edge of the inserting cylinder 43, a rubber ring is fixed on the edge of the filter ring 45, the filter ring 45 is connected with the outside of the liquid outlet pipe 42, the rubber ring is sleeved on the outside of the inserting cylinder 43, the whole filter ring 45 is tightly attached to the inserting cylinder 43, the inserting cylinder 43 is meshed with the jack 411 and sleeved on the outside of the liquid outlet pipe 42, the limiting ring 44 is abutted to the outside of the filter shell 41, the connection tightness of the limiting ring 44 and the filter shell is not affected by the meshing mode, and meanwhile, the whole installation and disassembly are convenient;

insert a section of thick bamboo 43 for the one end opening, the closely knit component of one end, wherein process the external screw thread on the outer wall of inserting a section of thick bamboo 43, and insert a section of thick bamboo 43 along global inside processing become the magnet of annular distribution, and the distance between the port of drain pipe 42 and the closely knit port of inserting a section of thick bamboo 43 is not less than 3cm, drain pipe 42 exhaust fluid is discharged from filter ring 45, annular magnet through inside setting, to bits of broken glass magnetic adsorption in the fluid, after long-time use, take off and insert a section of thick bamboo 43 and clear up inside iron fillings, install again after the completion and can not influence its filterable effect.

Example two:

referring to fig. 6, the insertion tube 43 may be a tubular member, a truncated cone at one end, or a tubular combined member at one end, wherein the tapered end is close to the port of the liquid outlet tube 42, and the magnetic force of the magnet is increased along the flared portion of the tapered end, and the magnetic force at the tubular position is the same, and the truncated cone structure is provided, so that the space for the oil liquid discharged from the liquid outlet tube 42 to flow back to the opening of the insertion tube 43 is increased, and the space between the two is increased, and the absorption effect force is not affected by increasing the magnetic force.

In summary, the following steps: in the reflux type cooling oil circuit system of the numerical control milling machine, the transmission direction of the transmission mechanism 2 is changed by the round platform-shaped teeth 23, in the process of power transmission, high temperature is generated by high-speed rotation of the gear, oil needs to be injected into the transmission mechanism 2 to take away the generated high-temperature protection truncated cone-shaped teeth 23, the oil passing through the filtering mechanism 4 flows into the oil way backflow mechanism 3, the oil in the transmission mechanism 2 flows into the oil way backflow mechanism 3 after being filtered by the filtering mechanism 4, the temperature of the oil is reduced by cooling liquid in the oil way backflow mechanism 3, the cooling liquid is pumped and sent into the transmission mechanism 2, the oil discharged from the liquid outlet pipe 42 is discharged from the filtering ring 45 and flows into the cooling shell 31, and the oil passes through the annular magnet arranged inside, the scrap in the oil is magnetically adsorbed, after long-time use, the insert cylinder 43 is taken down to clean the internal scrap iron, and the filtering effect of the scrap iron cannot be influenced after the scrap iron is installed again; wherein the coolant liquid who sets up advances pipe 311 and coolant liquid exit tube 312 lets the continuous circulation of coolant liquid in the cooling shell 31, the coolant liquid that is located the cooling shell 31 exchanges the heat with heat exchange tube 32, reduce the temperature of the inside fluid of heat exchange tube 32 after the heat exchange, and discharge from coolant liquid exit tube 312, coolant liquid after the reduction in temperature advances the pipe 311 from the coolant liquid and flows into in the cooling shell 31, continue to exchange the heat to heat exchange tube 32, whole backward flow formula cooling improves refrigerated efficiency, and through detachable filter equipment, improve the filterable effect of equipment, avoid dismantling the inside equipment of milling machine 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a backward flow formula cooling oil piping system of numerically controlled fraise machine, a serial communication port, including milling machine (1), drive mechanism (2) and milling cutter (5), install drive mechanism (2) and oil circuit backward flow mechanism (3) on milling machine (1) respectively, the output of milling cutter (5) and drive mechanism (2) meets, the pipeline of connecting on drive mechanism (2) meets with filter mechanism (4), fluid through filter mechanism (4) flows into in oil circuit backward flow mechanism (3), the coolant liquid in oil circuit backward flow mechanism (3) reduces fluid temperature, the extraction is sent into in drive mechanism (2).

2. The back-flow type cooling oil circuit system of the numerically controlled milling machine according to claim 1, wherein the transmission mechanism (2) comprises a support frame (21), a transmission case (22) and a circular truncated cone-shaped tooth (23), the support frame (21) is fixed on the transmission case (22), the circular truncated cone-shaped tooth (23) is covered by a bearing of the support frame (21), and an output end of the circular truncated cone-shaped tooth (23) located outside the transmission case (22) is connected with the milling cutter (5).

3. The back-flow type cooling oil circuit system of the numerically controlled milling machine as claimed in claim 1, wherein the filter mechanism (4) comprises a filter shell (41), a liquid outlet pipe (42), an insert cylinder (43), a limit ring (44) and a filter ring (45), a jack (411) with internal threads is machined on the right side of the filter shell (41), one end of the liquid outlet pipe (42) extends to the inside of the transmission shell (22), and the other end of the liquid outlet pipe penetrates through the filter shell (41) and extends from the jack (411) to the outside;

insert the fixed spacing ring (44) of outer wall of a section of thick bamboo (43), install filter ring (45) on inserting the opening border of a section of thick bamboo (43), filter ring (45) and the external connection of drain pipe (42), insert a section of thick bamboo (43) and mesh with jack (411) to the outside of cover in drain pipe (42), wherein spacing ring (44) are to the outside of filtering shell (41).

4. The back-flow type cooling oil circuit system of the numerically controlled milling machine according to claim 1, wherein the oil circuit back-flow mechanism (3) comprises a cooling shell (31), a heat exchange pipe (32), a pump body (33) and a back-flow pipe (34), wherein the top and bottom openings of the cooling shell (31) are inserted into two ends of the heat exchange pipe (32), the port of the heat exchange pipe (32) at the top is communicated with the filter shell (41), the port of the heat exchange pipe (32) at the bottom is connected with the external pump body (33), the output port of the pump body (33) is connected with the back-flow pipe (34), and the other end of the back-flow pipe (34) is inserted into the transmission shell (22).

5. The back-flow type cooling oil path system of the numerically controlled milling machine according to claim 3, wherein the insert cylinder (43) is a member having an open end and a closed end, wherein an external thread is formed on an outer wall of the insert cylinder (43), and the insert cylinder (43) is formed with magnets distributed annularly along an inner portion of a peripheral surface, and a distance between a port of the drain pipe (42) and the closed end of the insert cylinder (43) is not less than 3 cm.

6. The back-flow type cooling oil circuit system of the numerically controlled milling machine as claimed in claim 4, wherein a cooling fluid inlet pipe (311) and a cooling fluid outlet pipe (312) are respectively connected to the side portion of the cooling shell (31), the cooling fluid inlet pipe (311) is used for allowing cooling fluid with reduced temperature to flow into the cooling shell (31) and to be discharged from the cooling fluid outlet pipe (312) after exchanging heat with high-temperature oil in the heat exchange pipe (32).

7. The back-flow type cooling oil path system of the numerically controlled milling machine according to claim 3, wherein the insert cylinder (43) is a cylindrical member, an end-truncated cone, or an end-cylindrical combination member, wherein the tapered end is close to the end of the liquid outlet pipe (42), and the magnetic force of the magnet is increased along the flared portion of the tapered end, and the magnetic force at the cylindrical position is the same.