CN110695760A - Numerical control machine tool - Google Patents
Numerical control machine tool Download PDFInfo
- Publication number
- CN110695760A CN110695760A CN201910917648.8A CN201910917648A CN110695760A CN 110695760 A CN110695760 A CN 110695760A CN 201910917648 A CN201910917648 A CN 201910917648A CN 110695760 A CN110695760 A CN 110695760A
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- CN
- China
- Prior art keywords
- oil
- screw rod
- screw
- numerical control
- machine tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
- B23Q11/122—Lubricant supply devices
-
- 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
Abstract
The invention discloses a numerical control machine tool which comprises a rack, wherein the rack is provided with a workbench, a screw rod for driving the workbench to horizontally move and a motor for driving the screw rod to rotate, the workbench is provided with an installation block for connecting the screw rod, the rack is provided with a cooling mechanism for cooling the screw rod, the cooling mechanism comprises an oil storage chamber arranged on the installation block and an oil return groove arranged below the screw rod, the oil storage chamber is used for storing cooling oil, the oil storage chamber is provided with an oil discharge hole facing the screw rod, and the oil return groove is used for collecting cooling oil dripped by the screw rod. The numerical control machine tool can cool the screw rod driving the workbench to move, and meanwhile, the strength of the screw rod is not reduced.
Description
Technical Field
The invention relates to machining equipment, in particular to a numerical control machine tool.
Background
In the prior art, a numerical control machine tool is a machining device for efficient machining, and is generally used for machining metal parts such as cutting, milling, drilling, tapping and the like.
Generally, the structure of a numerical control machine tool mainly comprises a frame, wherein the frame is provided with a main shaft and a workbench, the main shaft is used for fixing a machining tool, the workbench is arranged below the main shaft, the workbench is used for installing a clamp, and the clamp is used for fixing a product. The spindle can rotate and move up and down, and the worktable can move horizontally, the direction of horizontal movement is two mutually perpendicular directions, which are generally defined as an X axis and a Y axis, and the spindle is defined as a Z axis.
The structure that replaces the removal of workstation is screw rod and motor usually, and the screw rod drives the in-process that the workstation removed and can generate heat the deformation, influences the machining precision.
In order to reduce deformation, a cooling structure of the cooling screw rod is shown, specifically, the screw rod is set into a hollow pipe, and then cooling liquid is introduced for cooling.
However, providing the screw as a hollow tube reduces the strength of the screw, requires an increase in the screw diameter to compensate, and also results in a complicated table structure because the end of the screw needs to be sealed.
Disclosure of Invention
The present invention is directed to solve the above mentioned technical problems, and provides a numerical control machine tool, which can cool a screw rod driving a worktable to move, and at the same time, does not reduce the strength of the screw rod.
The invention is realized by the following technical scheme:
the utility model provides a numerical control machine tool, which comprises a frame, the frame is provided with the workstation, drive the screw rod that the workstation horizontal migration moved and drive screw rod pivoted motor, the workstation is provided with connecting screw's installation piece, the frame is provided with cooling screw's cooling body, cooling body is including setting up the oil storage cavity on the installation piece and setting up the oil gallery in the screw rod below, the oil storage cavity is used for storing the coolant oil, the oil storage cavity is provided with the oil drain hole towards the screw rod, the oil gallery is used for collecting the coolant oil that the screw rod drips.
Preferably, the oil discharge hole is provided on a sidewall of the oil storage chamber.
Preferably, the oil discharge hole extends in a horizontal direction, and a cross-sectional area of the oil discharge hole decreases in a flow direction of the cooling oil.
Preferably, the number of the oil discharge holes is at least two, and the oil discharge holes are formed in two sides of the mounting block along the axis direction of the screw rod.
Preferably, the oil return groove is provided with an oil return hole, and the oil return hole is communicated with the filter element.
Preferably, the frame is provided with an oil pump, the inlet end of the oil pump is communicated with the oil return groove, and the outlet end of the oil pump is communicated with the oil storage chamber.
Further, the oil pump sets up in the screw rod and is close to the one end of motor.
Furthermore, the top of the oil storage chamber is opened, and the outlet end of the oil pump can be suspended above the oil storage chamber.
Preferably, the oil pump is connected to a push switch, and the mounting block is provided with a control portion capable of abutting against the push switch.
Further, the screw rod is a ball screw rod, and the mounting block is provided with a limiting groove connected with the screw rod.
The beneficial effects are that: compared with the prior art, the numerical control machine tool provided by the invention has the advantages that the oil storage chamber is arranged on the mounting block of the connecting screw rod of the workbench, and the oil discharge hole facing the screw rod is arranged in the oil storage chamber, so that cooling oil is dropped onto the screw rod, the cooling of the screw rod is realized, the screw rod is not required to be arranged into a tubular shape, and the strength of the screw rod is not influenced.
And, still through setting up oil return tank, collect the cooling oil that drips from the screw rod, avoid leaking.
Meanwhile, the cooling oil in the recovery tank exchanges heat with the outside through the rack, but does not generate substance exchange, so that the impurities are not needed to be mixed, and the abrasion of the screw rod is not increased.
Moreover, cooling oil drops on the screw, and a plurality of screws can be lubricated to protect the screw, so that the service life of the screw is prolonged.
In addition, the cooling mechanism or the screw rod is maintained only by detaching the workbench without influencing the surrounding parts.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic structural diagram of a numerically controlled machine tool according to the present invention;
fig. 2 is a partial schematic view of the cooling mechanism of fig. 1.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention.
It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the scope of the present invention.
In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The technical characteristics of the invention can be combined interactively on the premise of not conflicting with each other.
As shown in fig. 1, a numerical control machine tool includes a frame 1, the frame 1 is provided with a worktable 2, a screw 3 for driving the worktable 2 to move horizontally and a motor 4 for driving the screw 3 to rotate, and the worktable 2 is provided with an installation block 5 for connecting the screw 3.
In order to cool the screw 3 without affecting the strength of the screw 3, the present embodiment provides the frame 1 with a cooling mechanism for cooling the screw 3, the cooling mechanism includes an oil storage chamber 6 disposed on the mounting block 5 and an oil return groove 8 disposed below the screw 3, the oil storage chamber 6 is used for storing cooling oil, the oil storage chamber 6 is provided with an oil discharge hole 7 facing the screw 3, and the oil return groove 8 is used for collecting the cooling oil dropped from the screw 3.
This embodiment is through setting up oil storage chamber 6 on workstation 2 connecting screw 3's installation piece 5 to make oil storage chamber 6 set up towards screw 3's oil drain hole 7, thereby will cool off oil and drip to screw 3 on, realize the cooling to screw 3, need not set screw 3 to tubulose, do not influence the intensity of screw 3.
Obviously, the screw 3 is processed into a tubular shape, the manufacturing difficulty is high, and when the screw 3 rotates at a high speed, the end part of the screw 3 is difficult to seal, and the improvement does not have the problems.
Of course, the present improvement has other advantageous effects, for example, by also providing the oil return groove 8 to collect the cooling oil dropping from the screw 3, avoiding leakage.
For example, the cooling oil in the recovery tank exchanges heat with the outside through the frame 1 without generating substance exchange, so that the impurities are not mixed, and the abrasion of the screw 3 is not increased.
For example, the cooling oil drops on the screw 3, and the screw 3 can be lubricated to protect the screw 3, thereby prolonging the service life of the screw 3.
Further, maintenance of the cooling mechanism or the screw 3 is carried out only by detaching the table 2 without affecting the surrounding parts.
In order to prevent the oil drain hole 7 from being clogged with the impurities of the cooling oil, the oil drain hole 7 may be formed in the side wall of the oil storage chamber 6, that is, the impurities are accumulated in the bottom wall of the oil storage chamber 6, and the cooling oil containing less impurities flows out through the oil drain hole 7.
In order to reduce the consumption of the cooling oil, the oil discharge hole 7 may be extended in a horizontal direction, and the cross-sectional area of the oil discharge hole 7 is reduced in the flow direction of the cooling oil, that is, the cross-sectional area of the oil discharge hole 7 is reduced to reduce the outflow amount of the cooling oil, which is, of course, advantageous for the deposition of impurities toward the bottom of the oil storage chamber 6.
As can be seen from the nature of machining, the table 2 is usually moved back and forth within a certain range, and at least two oil discharge holes 7 may be provided to avoid heat from being transferred in the axial direction of the screw 3, and the oil discharge holes 7 may be provided on both sides of the mounting block 5 in the axial direction of the screw 3 to reduce heat diffused to both ends of the screw 3, reduce deformation of the screw 3, and further ensure accuracy.
Because the screw rod 3 is inevitably worn, in order to avoid reducing impurities, the oil return groove 8 can be provided with an oil return hole which is communicated with a filter element.
The oil return groove 8 can be an independent part and can also be formed by the processing frame 1, but the oil return groove can exchange heat with the outside, and the oil return groove is prevented from being made of non-metal non-heat-conducting materials.
In order to realize automatic addition of cooling oil to the oil storage chamber 6, the rack 1 may be provided with an oil pump 9, an inlet end of the oil pump 9 is communicated with the oil return groove 8, an outlet end of the oil pump 9 is communicated with the oil storage chamber 6, and further, the cooling oil is recycled.
To facilitate the wiring arrangement, the oil pump 9 may be provided at an end of the screw 3 near the motor 4.
Because workstation 2 round trip movement directly is connected oil storage cavity 6 with oil pump 9 with oil pipe, can lead to oil pipe to damage rapidly, as shown in fig. 2, can make the open setting in top of oil storage cavity 6, the exit end of oil pump 9 can suspend in the top of oil storage cavity 6, promptly, oil pump 9 and oil storage cavity 6 are not direct connection, but, when workstation 2 moved a certain position, start oil pump 9, oil pump 9 pours into the cooling oil into in the oil storage cavity 6.
In order to smoothly perform the process of injecting the cooling oil, it is preferable to return the table 2 to the original point, that is, to restart the injection of the cooling oil into the oil storage chamber 6 when one operation cycle is completed.
The original point can be machinery original point or coordinate system original point, accomplishes the machining back, and workstation 2 all can get back to the original point voluntarily to in the dismouting and the change of carrying out the work piece, belong to the general knowledge in machining field, no longer detail.
In order to avoid a long-term inefficient operation of the oil pump 9, the oil pump 9 may be connected to a push switch, the mounting block 5 is provided with a control portion 11 which can abut against the push switch, i.e. the control portion 11 of the mounting block 5 contacts the push switch, so that the oil pump 9 is started, and when the control portion 11 is away from the push switch, the oil pump 9 is turned off.
Usually, the mounting block 5 is a nut or a hole for accommodating the screw rod 3, but this is not convenient for maintaining the screw rod 3, and for facilitating the dismounting and maintenance, the screw rod 3 may be a ball screw, and the mounting block 5 is provided with a limit groove 10 for connecting the screw rod 3.
That is, the mounting block 5 can be smoothly dismounted without dismounting the screw 3, thereby avoiding influencing the mounting precision of the screw 3.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.
Claims (10)
1. The utility model provides a numerical control machine tool, which comprises a frame (1), frame (1) is provided with workstation (2), screw rod (3) that drive workstation (2) horizontal migration and drive screw rod (3) pivoted motor (4), workstation (2) are provided with installation piece (5) of connecting screw rod (3), a serial communication port, frame (1) is provided with the cooling body of cooling screw rod (3), the cooling body is including setting up oil storage cavity (6) on installation piece (5) and setting oil gallery (8) in screw rod (3) below, oil storage cavity (6) are used for storing the coolant oil, oil storage cavity (6) are provided with oil extraction hole (7) towards screw rod (3), oil gallery (8) are used for collecting the coolant oil that screw rod (3) dropped.
2. A numerically controlled machine tool according to claim 1, characterized in that said oil drain hole (7) is provided on the side wall of the oil storage chamber (6).
3. A numerically controlled machine tool according to claim 1, characterized in that the drain hole (7) extends in a horizontal direction, the cross-sectional area of the drain hole (7) decreasing in the direction of flow of the cooling oil.
4. A numerical control machine tool according to claim 1, characterized in that the number of the oil drain holes (7) is at least two, and the oil drain holes (7) are provided on both sides of the mounting block (5) in the axial direction of the screw (3).
5. The numerical control machine tool according to claim 1, characterized in that the oil return groove (8) is provided with oil return holes which are communicated with a filter element.
6. A numerically controlled machine according to claim 1, characterized in that the frame (1) is provided with an oil pump (9), the inlet end of the oil pump (9) is communicated with the oil return groove (8), and the outlet end of the oil pump (9) is communicated with the oil storage chamber (6).
7. A numerical control machine according to claim 6, characterized in that the oil pump (9) is arranged at one end of the screw (3) close to the motor (4).
8. A numerically controlled machine tool according to claim 6, characterized in that the top of the oil storage chamber (6) is open, and the outlet end of the oil pump (9) can be suspended above the oil storage chamber (6).
9. A numerical control machine according to claim 6, characterized in that the oil pump (9) is connected to a push switch, the mounting block (5) being provided with a control portion (11) capable of abutting against the push switch.
10. A numerical control machine according to claim 1, characterized in that the screw (3) is a ball screw and the mounting block (5) is provided with a limit recess (10) for connection with the screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917648.8A CN110695760A (en) | 2019-09-26 | 2019-09-26 | Numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917648.8A CN110695760A (en) | 2019-09-26 | 2019-09-26 | Numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110695760A true CN110695760A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917648.8A Pending CN110695760A (en) | 2019-09-26 | 2019-09-26 | Numerical control machine tool |
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| Country | Link |
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| CN (1) | CN110695760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621383A (en) * | 2020-10-21 | 2021-04-09 | 重庆工程职业技术学院 | Vibration module and device for measuring additional load loss coefficient of milling machine |
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| CN209176115U (en) * | 2018-10-21 | 2019-07-30 | 宁波斯曼尔电器有限公司 | A kind of injection molding machine injection bearing housing structure |
| CN110181290A (en) * | 2019-05-31 | 2019-08-30 | 重庆宏钢数控机床有限公司 | Positioning clamp holder with automatic cleaning function |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5454278A (en) * | 1992-11-25 | 1995-10-03 | Nsk Ltd. | Ball screw integrated linear guide unit |
| CN204094476U (en) * | 2014-09-30 | 2015-01-14 | 郭谆钦 | A kind of Linear machine tool adjustable self-lubricating guide rail |
| CN107489755A (en) * | 2016-06-12 | 2017-12-19 | 上海瓦姆石油天然气管业有限公司 | A kind of solid lubrication device for Digit Control Machine Tool open type screw nut driving |
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| CN208681152U (en) * | 2018-09-25 | 2019-04-02 | 林成烨 | A kind of automatic lubrication installation of lathe guide shaft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621383A (en) * | 2020-10-21 | 2021-04-09 | 重庆工程职业技术学院 | Vibration module and device for measuring additional load loss coefficient of milling machine |
| CN112621383B (en) * | 2020-10-21 | 2022-01-28 | 重庆工程职业技术学院 | Vibration module and device for measuring additional load loss coefficient of milling machine |
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Application publication date: 20200117 |
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