CN112935926B - Screw rod transmission mechanism for machine tool - Google Patents
Screw rod transmission mechanism for machine tool Download PDFInfo
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- CN112935926B CN112935926B CN202110222356.XA CN202110222356A CN112935926B CN 112935926 B CN112935926 B CN 112935926B CN 202110222356 A CN202110222356 A CN 202110222356A CN 112935926 B CN112935926 B CN 112935926B
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- cooling liquid
- water outlet
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 74
- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 239000000110 cooling liquid Substances 0.000 claims abstract description 76
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000005034 decoration Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to a screw rod transmission mechanism for a machine tool, which comprises a transmission screw rod, a transmission screw rod and a transmission mechanism, wherein the transmission screw rod is provided with a heat exchange hole; the rear mounting seat is rotatably mounted on the rear mounting seat at the rear end of the transmission screw rod; the middle part of the front mounting seat is provided with a communicating hole, the front end of the transmission screw rod is rotatably mounted at the rear side of the front mounting seat, the upper part of the front mounting seat is provided with a group of mounting holes communicated to the communicating hole, and a water inlet pipe joint and a water outlet pipe joint are mounted on the mounting holes; the cooling liquid circulation pipe comprises a group of water inlet pipes and water outlet pipes which are arranged in the heat exchange holes in parallel, the rear ends of the water inlet pipes and the water outlet pipes are in conduction connection, the front ends of the water inlet pipes are fixedly connected to the water inlet pipe joints, and the water outlet pipes are fixedly connected to the water outlet pipe joints; the air inlet mechanism comprises an air inlet pipe fixedly connected to the front end of the front mounting seat, and a corresponding exhaust fan is arranged in the air inlet pipe. The invention can effectively achieve better cooling effect and faster cooling efficiency and can effectively overcome the problem of coolant leakage.
Description
Technical Field
The invention relates to a screw rod transmission mechanism for a machine tool, in particular to a screw rod transmission mechanism with a cooling function for the machine tool.
Background
The screw rod transmission mechanism is one of the most important transmission elements on a machine tool, and the screw rod transmission mechanism has the main function of converting rotary motion into linear motion so as to effectively drive the workbench to move accurately under the driving of the servo motor.
Traditional screw drive mechanism, the heat that its lead screw and bearing rotating position produced relies on the mode heat dissipation of nature, and the radiating rate is slow, consequently, the high-speed rotatory produced a large amount of heats in the twinkling of an eye of lead screw can lead to the lead screw rapid heating up thermal expansion to lead to rotation accuracy and stability to descend, can't satisfy the high-speed high accuracy performance requirement of digit control machine tool. For this reason, a screw drive mechanism having a cooling function is being developed and put into use. The existing screw rod transmission mechanism with the cooling function mainly comprises two types, namely an air cooling type screw rod transmission mechanism and a water cooling type screw rod transmission mechanism.
Therefore, the invention aims to design the screw rod transmission mechanism for the machine tool, which can effectively achieve better cooling effect and faster cooling efficiency and can effectively overcome the problem of leakage of cooling liquid.
Disclosure of Invention
In view of the technical problems in the prior art, the present invention provides a screw transmission mechanism for a machine tool, which can effectively solve the technical problems in the prior art.
The technical scheme of the invention is as follows:
a screw rod transmission mechanism for a machine tool comprises
The heat exchanger comprises a transmission screw rod, a heat exchanger and a heat exchanger, wherein a corresponding heat exchange hole is formed in the axial direction of the transmission screw rod, the front part of the heat exchange hole penetrates through the transmission screw rod, the rear part of the heat exchange hole extends to the rear side of the transmission screw rod, and a plurality of exhaust holes communicated to the heat exchange hole are uniformly distributed in the rear side of the transmission screw rod;
the rear mounting seat is fixedly connected to the bottom of a shell of the machine tool, and the rear end of the transmission screw rod is rotatably mounted on the rear mounting seat through a rear end bearing;
the front mounting seat is fixedly connected to the bottom of a shell of the machine tool, a corresponding communicating hole is formed in the middle of the front mounting seat, and the front end of the transmission screw rod is rotatably mounted on the rear side of the front mounting seat through a front end bearing; the upper part of the front mounting seat is provided with a group of mounting holes communicated to the communication holes, the mounting holes are respectively and fixedly provided with a water inlet pipe joint and a water outlet pipe joint, the water inlet pipe joint is connected to an external cooling liquid container through a corresponding cooling liquid pipe, and the water outlet pipe joint is connected to a main shaft cooling liquid spray pipe through a corresponding cooling liquid pump;
the water circulation mechanism comprises a circulation pipe connected to the water outlet end of the cooling liquid pump, one end of the circulation pipe, which is not connected to the cooling liquid pump, is communicated and connected to the cooling liquid container, the circulation pipe and the spindle cooling liquid spray pipe are respectively connected with corresponding electromagnetic valves, and the electromagnetic valves and the cooling liquid pump are respectively connected to a control system of a numerical control machine tool;
the cooling liquid circulation pipe comprises a group of water inlet pipes and water outlet pipes which are arranged in parallel and extend into the heat exchange holes, the rear ends of the water inlet pipes and the water outlet pipes are communicated and connected, the front ends of the water inlet pipes are turned upwards and fixedly connected to the inner wall of the water inlet pipe connector, and the front ends of the water outlet pipes are turned upwards and fixedly connected to the inner wall of the water outlet pipe connector;
the air inlet mechanism comprises an air inlet pipe fixedly connected with the front end of the front mounting seat, the air inlet pipe is connected to the intercommunicating pore, and a corresponding exhaust fan is arranged in the air inlet pipe.
The air guide mechanism comprises a horn-shaped air inlet cover which is fixedly arranged at the bottom of the machine tool shell, the upper end and the lower end of the horn-shaped air inlet cover are respectively and fixedly connected with a corresponding upper sealing plate and a corresponding lower sealing plate in a sealing manner, a plurality of corresponding air guide pipes penetrate and are fixedly connected between the upper sealing plate and the lower sealing plate, and the two ends of each air guide pipe are respectively communicated with the outer sides of the upper sealing plate and the lower sealing plate;
the upper portion of the horn-shaped air inlet cover is connected to one end, not connected to the front mounting seat, of the air inlet pipe in a communicating mode, the cooling liquid pipe is connected to the upper sealing plate in a communicating mode, and a corresponding liquid inlet pipe is connected between the horn-shaped air inlet cover and the cooling liquid container in a communicating mode.
Still include supporting mechanism, contain the interval joint in a plurality of fixture block on inlet tube and the outlet pipe, the bottom surface of fixture block is equipped with corresponding sphere groove respectively, the sphere inslot can roll respectively and install corresponding support ball, the bottom of supporting the ball is butt respectively in the heat transfer hole bottom of transmission lead screw.
The upper portion integrated into one piece of horn-shaped air inlet cover upwards is provided with a corresponding linking pipe, and the linking pipe is connected with the air inlet pipe and the front mounting seat through flange connection modes respectively.
The upper part of the connecting pipe is provided with a corresponding guide hole, and the cooling liquid pipe penetrates through the guide hole and then is communicated and connected to the upper sealing plate.
And a corresponding sealing ring is arranged between the cooling liquid pipe and the guide hole in a padding way.
The water inlet pipe, the water outlet pipe, the water inlet pipe joint and the water outlet pipe joint are all made of stainless steel pipes with high bending strength and high rust prevention functions.
The front end of the water inlet pipe is turned upwards and fixedly connected to the inner wall of the water inlet pipe joint in a threaded connection mode, and the front end of the water outlet pipe is turned upwards and fixedly connected to the inner wall of the water outlet pipe joint in a threaded connection mode.
And a corresponding filtering cotton layer is laid at the bottom of the lower sealing plate of the horn-shaped air inlet cover.
The transmission screw rod is driven by a corresponding servo motor.
The invention has the advantages that:
1) In the machining process of the machine tool, a cooling liquid pump is started to pump cooling liquid from an external cooling liquid container to a main shaft cooling liquid spray pipe and then spray the cooling liquid out to cool a chip part, and the cooling liquid sequentially flows through a water inlet pipe joint, a water inlet pipe, a water outlet pipe and a water outlet pipe joint and then enters the main shaft cooling liquid spray pipe; in the process that the cooling liquid continuously flows through the water inlet pipe and the water outlet pipe, the exhaust fan is started to effectively enable continuous air circulation to be formed in the communicating hole of the transmission screw rod, the circulated air is effectively in surface contact with the water inlet pipe and the water outlet pipe, heat exchange is achieved, the temperature of the circulated air is effectively reduced, the cooled circulated air is in contact with the heat exchange hole wall of the transmission screw rod, the heat of the transmission screw rod can be effectively taken away through the flow velocity, higher temperature difference can be effectively formed, effective heat exchange is achieved, and the heat dissipation effect and the heat exchange efficiency of the transmission screw rod are effectively guaranteed; the air of circulation effectively lasts along the exhaust hole discharge of transmission lead screw rear side under the effect of atmospheric pressure difference, and is in under operating condition's the condition at the transmission lead screw, can also carry out gas outgoing with the pivoted mode, under the effect of centrifugal force, still can effectively promote gaseous smooth and easy degree of circulation.
2) On the basis of ensuring that the transmission screw rod has enough heat dissipation effect and heat exchange efficiency, the invention is further provided with a water circulation mechanism which comprises a circulation pipe connected to the water outlet end of the cooling liquid pump, one end of the circulation pipe, which is not connected to the cooling liquid pump, is communicated and connected to the cooling liquid container, and the circulation pipe and the spindle cooling liquid spray pipe are respectively connected with corresponding electromagnetic valves, and the electromagnetic valves and the cooling liquid pump are respectively connected to a control system of the numerical control machine tool. When the spindle head is in a running state, the cooling liquid pump is continuously in a working state; when the main shaft head is in a stop state and the control system sends out an instruction of driving the screw rod to act, the electromagnetic valve on the cooling liquid spray pipe of the main shaft is controlled to be closed, and the electromagnetic valve on the circulating pipe is controlled to be opened, so that the driving screw rod is still kept to have enough heat dissipation effect and heat exchange efficiency on the basis of not influencing the work of the main shaft head and not causing the waste of cooling liquid, and the practical effect of the invention is improved.
3) The invention also comprises an air guide mechanism which comprises a horn-shaped air inlet cover fixedly arranged at the bottom of the machine tool shell, the upper part of the horn-shaped air inlet cover is communicated and connected to one end of the air inlet pipe which is not connected with the front mounting seat, and the air inlet direction can be effectively extended to the outer side of the machine tool shell through the arrangement of the horn-shaped air inlet cover, so that iron chips and other impurities in the machine tool can be effectively prevented from entering the air inlet mechanism or the front mounting seat and heat exchange holes of the transmission screw rod, and the practical effect of the invention is effectively further improved.
4) The upper end and the lower end of the horn-shaped air inlet cover are respectively and fixedly connected with a corresponding upper sealing plate and a corresponding lower sealing plate in a sealing mode, a plurality of corresponding air guide pipes penetrate through and are fixedly connected between the upper sealing plate and the lower sealing plate, two ends of each air guide pipe are respectively communicated with the outer sides of the upper sealing plate and the lower sealing plate, then the cooling liquid pipe is communicated and connected to the upper sealing plate, and then a corresponding liquid inlet pipe is communicated and connected between the horn-shaped air inlet cover and the cooling liquid container. The cooling liquid continuously entering the water inlet pipe passes through a space formed by the horn-shaped air inlet cover, the upper sealing plate and the lower sealing plate in advance and is fully contacted with circulating air flowing through the air guide pipe, so that the temperature of the circulating air is effectively reduced, and the heat dissipation effect and the heat exchange efficiency of the transmission screw rod are further effectively guaranteed.
5) The invention also comprises a supporting mechanism which comprises a plurality of clamping blocks clamped on the water inlet pipe and the water outlet pipe at intervals, the bottom surfaces of the clamping blocks are respectively provided with corresponding spherical grooves, corresponding supporting balls can be respectively installed in the spherical grooves in a rolling manner, and the supporting balls of the supporting mechanism are effectively abutted against the bottom of the heat exchange hole of the transmission screw rod so as to form sufficient support for the water inlet pipe and the water outlet pipe, prevent the water inlet pipe and the water outlet pipe from generating excessive deformation, and cannot cause excessive influence on the air circulation. The most important transmission screw rod for the machine tool is mainly used for driving a workbench with a workpiece to move, and the driving rotating speed of the transmission screw rod is relatively low, so that supporting force is provided in a supporting ball rolling mode, the circulation of air is not excessively influenced, mechanical damage and heat generated by friction can be reduced, and the practical effect of the invention is effectively further improved.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic structural view of the coolant flow tube.
Fig. 3 is a schematic structural diagram of the air intake mechanism.
Fig. 4 is a schematic structural view of the air guiding mechanism.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 1 to 4, a screw drive mechanism for a machine tool includes
The heat exchanger comprises a transmission screw rod 1, wherein a corresponding heat exchange hole 101 is formed in the axial direction of the transmission screw rod 1, the front part of the heat exchange hole 101 penetrates through the transmission screw rod 1, the rear part of the heat exchange hole 101 extends to the rear side of the transmission screw rod 1, and a plurality of exhaust holes 102 communicated to the heat exchange hole 101 are uniformly distributed in the rear side of the transmission screw rod 1;
the rear mounting seat 2 is fixedly connected to the bottom of a shell of the machine tool, and the rear end of the transmission screw rod 1 is rotatably mounted on the rear mounting seat 2 through a rear end bearing 3;
the front mounting seat 4 is fixedly connected to the bottom of a shell of a machine tool, a corresponding communication hole 401 is formed in the middle of the front mounting seat 4, and the front end of the transmission screw rod 1 is rotatably mounted on the rear side of the front mounting seat 4 through a front end bearing 5; the upper part of the front mounting seat 4 is provided with a group of mounting holes communicated to the communication hole 401, the mounting holes are respectively and fixedly provided with a water inlet pipe joint 6 and a water outlet pipe joint 7, the water inlet pipe joint 6 is connected to an external cooling liquid container 9 through a corresponding cooling liquid pipe 8, and the water outlet pipe joint 7 is connected to a main shaft cooling liquid spray pipe 11 through a corresponding cooling liquid pump 10;
the water circulation mechanism 12 comprises a circulation pipe connected to the water outlet end of the cooling liquid pump 10, one end of the circulation pipe, which is not connected to the cooling liquid pump 10, is connected to the cooling liquid container 9 in a communicating manner, the circulation pipe and the spindle cooling liquid spray pipe 11 are respectively connected with corresponding electromagnetic valves 13, and the electromagnetic valves 13 and the cooling liquid pump 10 are respectively connected to a control system of a numerical control machine tool;
the cooling liquid circulation pipe 14 comprises a group of water inlet pipes 1401 and water outlet pipes 1402 which are arranged in parallel and extend into the heat exchange holes 101, the rear ends of the water inlet pipes 1401 and the water outlet pipes 1402 are communicated and connected, the front ends of the water inlet pipes 1401 are turned upwards and fixedly connected to the inner wall of the water inlet pipe joint 6, and the front ends of the water outlet pipes 1402 are turned upwards and fixedly connected to the inner wall of the water outlet pipe joint 7;
the air intake mechanism 15 comprises an air intake pipe 1501 fixedly connected to the front end of the front mounting seat 4, the air intake pipe 1501 is connected to the communication hole 401 in a communicating manner, and a corresponding exhaust fan 1502 is arranged in the air intake pipe 1501.
The air guide device further comprises an air guide mechanism 16, wherein the air guide mechanism comprises a horn-shaped air inlet cover 1601 which is fixedly arranged at the bottom of the machine tool shell, the upper end and the lower end of the horn-shaped air inlet cover 1601 are fixedly connected with a corresponding upper sealing plate 1602 and a corresponding lower sealing plate 1603 in a sealing mode respectively, a plurality of corresponding air guide pipes 1604 penetrate and are fixedly connected between the upper sealing plate 1602 and the lower sealing plate 1603, and two ends of each air guide pipe 1604 are communicated with the outer sides of the upper sealing plate 1602 and the lower sealing plate 1603 respectively;
the upper portion of the trumpet-shaped air inlet cover 1601 is connected with the air inlet pipe 1501 and is not connected with one end of the front mounting seat 4, the cooling liquid pipe 8 is connected with the upper sealing plate 1602, and a corresponding liquid inlet pipe 17 is connected between the trumpet-shaped air inlet cover 1601 and the cooling liquid container 9.
The water inlet pipe 1401 and the water outlet pipe 1402 are provided with a plurality of clamping blocks 1801, the supporting mechanisms 18 comprise a plurality of clamping blocks 1801 which are clamped on the water inlet pipe 1401 and the water outlet pipe 1402 at intervals, corresponding spherical grooves are respectively arranged on the bottom surfaces of the clamping blocks 1801, corresponding supporting balls 1802 are respectively installed in the spherical grooves in a rolling mode, and the bottom ends of the supporting balls 1802 abut against the bottoms of the heat exchange holes 101 of the transmission screw rod 1.
The upper portion of the trumpet-shaped air inlet cover 1601 is integrally formed and is provided with corresponding connecting pipes 19 upwards, and the connecting pipes 19 and the air inlet pipe 1501 as well as the air inlet pipe 1501 and the front mounting base 4 are connected through flange connection modes respectively.
The upper portion of the connecting tube 19 is provided with a corresponding guide hole, and the cooling liquid tube 8 is connected to the upper sealing plate 1602 after penetrating through the guide hole.
A corresponding sealing ring 20 is arranged between the cooling liquid pipe 8 and the guide hole.
The water inlet pipe 1401, the water outlet pipe 1402, the water inlet pipe joint 6 and the water outlet pipe joint 7 are all made of stainless steel pipes with high bending strength and high rust prevention function.
The front end of the water inlet pipe 1401 is turned upwards and fixedly connected to the inner wall of the water inlet pipe connector 6 in a threaded connection mode, and the front end of the water outlet pipe 1402 is turned upwards and fixedly connected to the inner wall of the water outlet pipe connector 7 in a threaded connection mode.
The horn-shaped air inlet cover 1601 is provided with a corresponding filtering cotton layer 21 at the bottom of the lower sealing plate 1603.
The drive screws 1 are driven by corresponding servomotors 22.
In the machining process of the machine tool, a cooling liquid pump 10 is started to pump cooling liquid from an external cooling liquid container 9 to a main shaft cooling liquid spray pipe 11 and then spray the cooling liquid out to cool a chip part, and the cooling liquid sequentially flows through a water inlet pipe joint 6, a water inlet pipe 1401, a water outlet pipe 1402 and a water outlet pipe joint 7 and then enters the main shaft cooling liquid spray pipe 11; in the process that the cooling liquid continuously flows through the water inlet pipe 1401 and the water outlet pipe 1402, the exhaust fan 1502 is started to effectively enable continuous air circulation to be formed in the communicating hole 101 of the transmission screw rod 1, the circulated air is effectively in surface contact with the water inlet pipe 1401 and the water outlet pipe 1402, heat exchange is achieved, the temperature of the circulated air is effectively reduced, the cooled circulated air is in contact with the heat exchange hole wall of the transmission screw rod 1, heat of the transmission screw rod can be effectively taken away through the flow velocity, higher temperature difference can be effectively formed, effective heat exchange is achieved, and the heat dissipation effect and the heat exchange efficiency of the transmission screw rod 1 are effectively guaranteed; the air that circulates is effectively lasted along the exhaust hole 102 discharge of transmission lead screw 1 rear side under the effect of atmospheric pressure difference, and is in operating condition's the circumstances at transmission lead screw 1 under, can also carry out gaseous discharge with the pivoted mode, under the effect of centrifugal force, still can effectively promote gaseous smooth and easy degree of circulation.
On the basis of ensuring that the transmission screw rod 1 has enough heat dissipation effect and heat exchange efficiency, the invention is further provided with a water circulation mechanism 12 which comprises a circulation pipe connected to the water outlet end of the cooling liquid pump 10, one end of the circulation pipe, which is not connected to the cooling liquid pump 10, is communicated and connected to the cooling liquid container 9, and the circulation pipe and the spindle cooling liquid spray pipe 11 are respectively connected with a corresponding electromagnetic valve 13, and the electromagnetic valve 13 and the cooling liquid pump 10 are respectively connected to a control system of the numerical control machine tool. When the spindle head is in the operating state, the coolant pump 10 is continuously in the operating state; when the spindle head is in a stop state and the control system sends out an instruction for driving the screw rod 1 to act, the electromagnetic valve 13 on the cooling liquid spray pipe 11 of the spindle is controlled to be closed, and the electromagnetic valve 13 on the circulating pipe is controlled to be opened, so that the transmission screw rod 1 is still kept to have sufficient heat dissipation effect and heat exchange efficiency on the basis of not influencing the work of the spindle head and not causing the waste of cooling liquid, and the practical effect of the invention is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a screw drive mechanism for lathe which characterized in that: comprises that
The heat exchanger comprises a transmission screw rod (1), wherein a corresponding heat exchange hole (101) is formed in the axial direction of the transmission screw rod (1), the front part of the heat exchange hole (101) penetrates through the transmission screw rod (1), the rear part of the heat exchange hole (101) extends to the rear side of the transmission screw rod (1), and a plurality of exhaust holes (102) communicated with the heat exchange hole (101) are uniformly distributed in the rear side of the transmission screw rod (1);
the rear mounting seat (2) is fixedly connected to the bottom of a shell of the machine tool, and the rear end of the transmission screw rod (1) is rotatably mounted on the rear mounting seat (2) through a rear end bearing (3);
the front mounting seat (4) is fixedly connected to the bottom of a shell of the machine tool, a corresponding communicating hole (401) is formed in the middle of the front mounting seat (4), and the front end of the transmission screw rod (1) is rotatably mounted on the rear side of the front mounting seat (4) through a front end bearing (5); a group of mounting holes communicated to the communication holes (401) are formed in the upper portion of the front mounting seat (4), a water inlet pipe connector (6) and a water outlet pipe connector (7) are fixedly mounted on the mounting holes respectively, the water inlet pipe connector (6) is connected to an external cooling liquid container (9) through a corresponding cooling liquid pipe (8), and the water outlet pipe connector (7) is connected to a main shaft cooling liquid spraying pipe (11) through a corresponding cooling liquid pump (10);
the water circulation mechanism (12) comprises a circulation pipe connected to the water outlet end of the cooling liquid pump (10), one end of the circulation pipe, which is not connected to the cooling liquid pump (10), is communicated and connected to the cooling liquid container (9), the circulation pipe and the spindle cooling liquid spray pipe (11) are respectively connected with corresponding electromagnetic valves (13), and the electromagnetic valves (13) and the cooling liquid pump (10) are respectively connected to a control system of a numerical control machine tool;
the cooling liquid circulation pipe (14) comprises a group of water inlet pipes (1401) and water outlet pipes (1402) which are arranged in parallel and extend into the heat exchange holes (101), the rear ends of the water inlet pipes (1401) and the water outlet pipes (1402) are communicated and connected, the front ends of the water inlet pipes (1401) are turned upwards and fixedly connected to the inner wall of the water inlet pipe joint (6), and the front ends of the water outlet pipes (1402) are turned upwards and fixedly connected to the inner wall of the water outlet pipe joint (7);
the air inlet mechanism (15) comprises an air inlet pipe (1501) fixedly connected to the front end of the front mounting seat (4), the air inlet pipe (1501) is communicated and connected to the communication hole (401), and a corresponding exhaust fan (1502) is arranged in the air inlet pipe (1501) in a fixing mode;
the air guide device is characterized by further comprising an air guide mechanism (16) which comprises a horn-shaped air inlet cover (1601) fixedly arranged at the bottom of the machine tool shell, the upper end and the lower end of the horn-shaped air inlet cover (1601) are fixedly connected with a corresponding upper sealing plate (1602) and a corresponding lower sealing plate (1603) in a sealing mode respectively, a plurality of corresponding air guide pipes (1604) penetrate through and are fixedly connected between the upper sealing plate (1602) and the lower sealing plate (1603), and two ends of each air guide pipe (1604) are communicated with the outer sides of the upper sealing plate (1602) and the lower sealing plate (1603) respectively;
the upper portion intercommunication of tubaeform air inlet cover (1601) is connected to air-supply line (1501) does not connect in the one end of preceding mount pad (4), coolant liquid pipe (8) intercommunication is connected to on the upper seal plate (1602), intercommunication is connected with a corresponding feed liquor pipe (17) between tubaeform air inlet cover (1601) and coolant liquid container (9).
2. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the water inlet pipe heat exchanger is characterized by further comprising a supporting mechanism (18) which comprises a plurality of clamping blocks (1801) clamped on the water inlet pipe (1401) and the water outlet pipe (1402) at intervals, corresponding spherical grooves are respectively formed in the bottom surfaces of the clamping blocks (1801), corresponding supporting balls (1802) can be respectively installed in the spherical grooves in a rolling mode, and the bottom ends of the supporting balls (1802) abut against the bottoms of the heat exchange holes (101) of the transmission screw rod (1).
3. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the upper portion integrated into one piece of horn-shaped air inlet cover (1601) upwards is equipped with corresponding linking pipe (19), link up between pipe (19) and air-supply line (1501), and connect through flange joint mode respectively between air-supply line (1501) and preceding mount pad (4).
4. The screw transmission mechanism for a machine tool according to claim 3, characterized in that: the upper part of the connecting pipe (19) is provided with a corresponding guide hole, and the cooling liquid pipe (8) penetrates through the guide hole and then is communicated and connected to the upper sealing plate (1602).
5. The screw transmission mechanism for a machine tool according to claim 4, characterized in that: and a corresponding sealing ring (20) is arranged between the cooling liquid pipe (8) and the guide hole in a cushioning mode.
6. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the water inlet pipe (1401), the water outlet pipe (1402), the water inlet pipe joint (6) and the water outlet pipe joint (7) are all made of stainless steel pipes with high bending strength and high rust prevention functions.
7. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the front end of the water inlet pipe (1401) is turned upwards and fixedly connected to the inner wall of the water inlet pipe joint (6) in a threaded connection mode, and the front end of the water outlet pipe (1402) is turned upwards and fixedly connected to the inner wall of the water outlet pipe joint (7) in a threaded connection mode.
8. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the horn-shaped air inlet cover (1601) is provided with a corresponding filtering cotton layer (21) at the bottom of the lower sealing plate (1603).
9. The screw transmission mechanism for a machine tool according to claim 1, characterized in that: the transmission screw rod (1) is driven by a corresponding servo motor (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110222356.XA CN112935926B (en) | 2021-02-28 | 2021-02-28 | Screw rod transmission mechanism for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110222356.XA CN112935926B (en) | 2021-02-28 | 2021-02-28 | Screw rod transmission mechanism for machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112935926A CN112935926A (en) | 2021-06-11 |
| CN112935926B true CN112935926B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110222356.XA Active CN112935926B (en) | 2021-02-28 | 2021-02-28 | Screw rod transmission mechanism for machine tool |
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| CN (1) | CN112935926B (en) |
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| DE4202510A1 (en) * | 1992-01-30 | 1993-08-05 | Schaeffler Waelzlager Kg | Machine tool feed unit lead-screw with internal cooling - is hollow with coolant flowing along bearing mounted inner tube and back along space between tube and wall to bearing mounted outlet collar |
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| CN111623096A (en) * | 2020-07-14 | 2020-09-04 | 广州市敏嘉制造技术有限公司 | Screw rod transmission mechanism with cooling system |
| CN211414560U (en) * | 2019-08-15 | 2020-09-04 | 株洲晴川硬质合金有限公司 | Numerical control machine tool spindle heat dissipation mechanism |
| CN212046123U (en) * | 2020-02-27 | 2020-12-01 | 重庆旭腾精密模具有限公司 | Mold cooling device |
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2021
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| DE4202510A1 (en) * | 1992-01-30 | 1993-08-05 | Schaeffler Waelzlager Kg | Machine tool feed unit lead-screw with internal cooling - is hollow with coolant flowing along bearing mounted inner tube and back along space between tube and wall to bearing mounted outlet collar |
| KR20120119493A (en) * | 2011-04-21 | 2012-10-31 | 경상대학교산학협력단 | Refrigerants feeder of ball screw for machine tool |
| CN203459997U (en) * | 2013-09-04 | 2014-03-05 | 杭州万宝数控机床有限公司 | Machine tool screw cooling system |
| CN207953366U (en) * | 2018-02-24 | 2018-10-12 | 深圳市今日标准精密机器有限公司 | Lathe temperature control system and numerically-controlled machine tool |
| CN110227966A (en) * | 2019-07-12 | 2019-09-13 | 段广游 | A kind of high-speed machine tool drive lead screw temperature compensation means |
| CN211414560U (en) * | 2019-08-15 | 2020-09-04 | 株洲晴川硬质合金有限公司 | Numerical control machine tool spindle heat dissipation mechanism |
| CN210663493U (en) * | 2019-09-20 | 2020-06-02 | 青海锦泰钾肥有限公司 | Water cooling machine with heat dissipation function |
| CN212046123U (en) * | 2020-02-27 | 2020-12-01 | 重庆旭腾精密模具有限公司 | Mold cooling device |
| CN111623096A (en) * | 2020-07-14 | 2020-09-04 | 广州市敏嘉制造技术有限公司 | Screw rod transmission mechanism with cooling system |
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| CN112935926A (en) | 2021-06-11 |
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Effective date of registration: 20240418 Address after: 18 Yaoqiang Street, High tech Industrial Development Zone, Jinan City, Shandong Province, Northwest Corner of Jinan Chenguang Airport Industrial Co. Patentee after: Jinan langzi Precision Machinery Co.,Ltd. Country or region after: China Address before: 350400 No. 20 station C, No. 31, Taiwan Pioneer Park, Jin Jing two road, Pingtan comprehensive experimentation area, Fuzhou, Fujian. Patentee before: PINGTAN CHENGXIN ZHICHUANG TECHNOLOGY Co.,Ltd. Country or region before: China |