CN219570769U - Numerical control machine tool ball screw pair with disassembly-free lubrication structure - Google Patents
Numerical control machine tool ball screw pair with disassembly-free lubrication structure Download PDFInfo
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- CN219570769U CN219570769U CN202220656082.5U CN202220656082U CN219570769U CN 219570769 U CN219570769 U CN 219570769U CN 202220656082 U CN202220656082 U CN 202220656082U CN 219570769 U CN219570769 U CN 219570769U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a numerical control machine tool ball screw pair with a disassembly-free lubrication structure, which comprises a screw rod, a nut and balls, wherein spiral rollways are arranged on the surface of the screw rod and the inner wall of the nut, the balls are rollably arranged in a passage formed by the rollways on the screw rod and the rollways on the nut, a lubrication oil pipeline is arranged in the nut, an oil inlet of the lubrication oil pipeline is arranged on the end face of the nut, an oil outlet of the lubrication oil pipeline is communicated with the rollways in the nut, and an oil storage groove is arranged in the rollways on the screw rod. The oil outlet of the lubricating oil pipeline is communicated with the raceway in the nut, so that the ball screw can be oiled without disassembly by the design, and the maintenance procedure is convenient. The design of the oil storage groove can store redundant lubricating oil and simultaneously store the oil sludge generated in the working process, so that abnormal sound caused by the blockage of the oil sludge in the working process of the ball screw is reduced, and the service life of the ball screw pair is prolonged.
Description
Technical Field
The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool ball screw pair with a disassembly-free lubrication structure.
Background
The lubricating structure is generally commonly existing in machines, and has the greatest benefit of being capable of storing redundant lubricating oil after lubricating parts, and automatically supplementing the lubricating oil when the lubricating oil among the parts is insufficient so as to ensure continuous supply of the lubricating oil.
After the ball screw of the machine tool works for a period of time, abnormal sound can be inevitably generated, the transmission efficiency is reduced, and the positioning accuracy is insufficient. The main reason for these problems is that the ball screw is not maintained by regular oil injection, resulting in dry friction between the ball and the ball grooves on the screw and nut. For example, in the utility model patent with publication number CN214999189U, a novel ball screw is disclosed, which connects a damping device with a base through a bearing and a bearing seat, when the ball screw and a rolling nut run to generate vibration, the vibration is transmitted to a spring through the ball screw, a baffle is driven to vibrate through the spring, the vibration is transmitted to a plurality of friction balls through the baffle, and the vibration is converted into internal energy to be consumed through mutual friction and collision among the friction balls, so that the vibration is reduced; during lubrication, the permanent magnet is pulled by force, so that the permanent magnet is pulled up against the magnetic force, then the eccentric cover plate is rotated, the oil filling hole is completely opened, lubricating oil is added from the oil filling hole, lubrication is more convenient, the oil filling hole is plugged after oiling is finished, impurities are prevented from blocking the oil filling hole, and the lubricating device has the advantages of convenience in lubrication and good shock absorption. But the frequent disassembly and maintenance of the ball screw also lead to the generation of oil sludge due to the doping of a large amount of dust, and meanwhile, the problem of installation error also exists, which is quite unfavorable for the transmission of the ball screw. Therefore, in order to solve the problems of installation deviation, oil sludge generation, abnormal transmission noise and the like caused by insufficient lubrication and frequent disassembly of the ball screw, a disassembly-free lubrication structure is urgently needed to be designed to solve the defects in the prior art.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems, and provides a numerical control machine tool ball screw pair with a disassembly-free lubrication structure, which has certain oil storage capacity and can realize continuous lubrication of balls.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a digit control machine tool ball screw pair with exempt from to tear open lubricating structure, includes lead screw, nut and ball, all be provided with helical raceway on the surface of lead screw and the inner wall of nut, ball rolling installation is in the raceway on the lead screw constitutes the passageway with the raceway on the nut, be provided with the lubrication oil pipe in the nut, the oil inlet setting of lubrication oil pipe is on the terminal surface of nut, the oil-out of lubrication oil pipe with raceway in the nut communicates, be provided with the oil storage groove in the raceway on the lead screw.
Further, the oil outlets of the lubricating oil pipelines are provided with a plurality of oil outlets, and each oil outlet is respectively communicated with the rollaway nest of each circle.
Further, the oil storage groove is arranged at the bottom of the roller path on the screw rod and extends along the roller path in the same direction.
Further, the vertical distance between the inlet end of the lubricating oil pipeline and the axis of the screw rod is larger than the vertical distance between the oil outlet of the lubricating oil pipeline and the axis of the screw rod.
Further, the caliber of the oil outlet of the lubricating oil pipeline is smaller as the caliber of the oil outlet of the lubricating oil pipeline is closer to the oil inlet of the lubricating oil pipeline.
Further, a connector is connected to an oil inlet of the lubricating oil pipeline.
Further, the edge of the opening of the oil storage groove is in smooth transition with the inner wall of the rollaway nest.
The beneficial effects of the utility model are as follows:
the numerical control machine ball screw pair with the disassembly-free lubrication structure is characterized in that a lubrication oil pipeline is designed in the nut on the basis of the existing structure, wherein an oil outlet of the lubrication oil pipeline is communicated with a raceway in the nut, and the design is convenient for disassembling-free oiling of the ball screw when the whole ball screw pair moves normally, so that maintenance procedures are facilitated. The design of the oil storage tank can store redundant lubricating oil and simultaneously store the oil sludge generated in the working process, so that abnormal sound caused by the blockage of the oil sludge in the working process of the ball screw is reduced, the problem of reduction of transmission efficiency is solved, and the service life of the ball screw pair is prolonged.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a cross-sectional view of an embodiment of the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a partial enlarged view at B in fig. 3.
In the figure: screw rod 10, oil storage groove 11, nut 20, lubricating oil pipeline 21, oil outlet 22, oil inlet 23, connector 24, ball 30 and roller path 40
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, as well as being disposed not only in an intermediate position but also in both ends as far as they are within the scope defined by the intermediate position. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Referring to fig. 1 to 5, the utility model provides a screw pair of a numerical control machine tool ball 30 with a disassembly-free lubrication structure, which comprises a screw 10, a nut 20 and balls 30, wherein spiral rollaway paths 40 are arranged on the outer surface of the screw 10 and the inner wall of the nut 20, the balls 30 are rollingly arranged in a passage formed by the rollaway paths 40 on the screw 10 and the rollaway paths 40 on the nut 20, a lubrication oil pipeline 21 is arranged in the nut 20, an oil inlet 23 of the lubrication oil pipeline 21 is arranged on the end surface of the nut 20, an oil outlet 22 of the lubrication oil pipeline 21 is communicated with the rollaway paths 40 in the nut 20, and an oil storage tank 11 is arranged in the rollaway paths 40 on the screw 10. The screw 10, the nut 20 and the ball 30 are all of a conventional structure, and the installation thereof is the same as that of a conventionally installed ball screw pair, and will not be described in detail herein. The main reason why only one lubrication oil pipe 21 is designed in the present utility model is that, in normal operation, after the balls 30 rotate normally, the lubrication oil in the lubrication oil pipe 21 is taken away, so that the lubrication oil is transferred along with the surfaces of the balls 30, and further, the lubrication oil is distributed on the surfaces of all the raceways 40, so that lubrication between the balls 30 and the raceways 40 is facilitated, and friction force is reduced.
Referring to fig. 4, in addition, the oil storage groove 11 is designed to store, in addition to excessive lubricating oil, sludge generated during movement of the whole ball screw pair to a certain extent, so as to avoid the sludge occupying the raceway 40. In the present utility model, the oil storage tank 11 is not limited to one. In addition, the oil storage groove 11 can be provided with a relatively large cross section in the area of the two ends of the screw rod 10, so that the sludge is discharged conveniently.
With further reference to fig. 3, in actual use, since the inner wall of the nut 20 is provided with a plurality of rings of raceways 40, for this purpose, in order to enable lubrication of the balls 30 in each ring of raceways 40 during actual use, the oil outlet 22 of the lubrication oil duct 21 is provided with a plurality of oil outlets 22, each oil outlet 22 being respectively connected to the raceways 40 of each ring. Wherein the caliber of the oil outlet 22 of the lubricating oil pipeline 21 is smaller as the caliber of the oil outlet 22 of the lubricating oil pipeline 21 is closer to the oil inlet 23 of the lubricating oil pipeline 21. The design mainly considers the concrete arrangement condition of the whole lubricating oil pipeline 21, and the design ensures that the larger the outflow caliber of the oil outlet 22 far away from the oil inlet 23 is, the more easily the lubricating oil flows out, thereby avoiding the difficulty in automatically flowing out the lubricating oil from the oil outlet 22 far away from the oil inlet 23 because the outflow caliber of the oil outlet 22 is too small, and ensuring that the lubricating oil can flow into each oil outlet 22.
Wherein referring to fig. 4, in some embodiments, in order to reduce the influence of the oil reservoir 11 on the balls 30 and ensure the normal rolling of the balls 30, the oil reservoir 11 is disposed on the bottom of the raceway 40 on the screw 10 and extends in the same direction along the raceway 40. In fact, the oil storage groove 11 and the rolling way 40 are arranged in parallel, so that the direction of the oil storage groove 11 in space can be changed, normal rolling of the balls 30 can not be generated, the balls 30 can roll along two side edges of the opening of the oil storage groove 11 in practice, rolling jumping of the balls 30 is reduced, and influence on the nut 20 is reduced.
Further, in order to better enable the lubricating oil present in the lubricating oil conduit 21 to automatically flow into each oil outlet 22 during the post-operation, the vertical distance between the inlet end of the lubricating oil conduit 21 and the axis of the screw 10 is, in one embodiment of the present utility model, greater than the vertical distance between the oil outlet 22 of the lubricating oil conduit 21 and the axis of the screw 10. In fact, for ease of processing, the lubrication conduit 21 is coplanar with the axis of the screw 10, while the lubrication conduit 21 is inclined with respect to the screw 10, so that the lubrication conduit 21 has a certain gradient, facilitating the flow of lubricating oil.
Referring to fig. 1 to 5, in order to facilitate the oiling of the lubricating oil pipeline 21 by a worker, and also facilitate the blocking of the lubricating oil pipeline 21 in the later stage, the lubricating oil in the lubricating oil pipeline 21 is prevented from being thrown out. The oil inlet 23 of the lubricating oil pipeline 21 is connected with a connector 24, wherein a sealing plug can be arranged at a liquid inlet of the connector 24. Indeed, in some embodiments, in order to better connect the connection head 24 with the oil inlet 23, the oil inlet 23 is provided with internal threads, while the outer wall of the connection head 24 is provided with external threads that mate with the internal threads.
Further, the edge of the opening of the oil storage tank 11 is smoothly transited with the inner wall of the raceway 40, so that the whole ball 30 is not influenced by the edge of the opening of the oil storage tank 11 to ensure normal rolling during rolling, and the abrasion of the edge of the opening of the oil storage tank 11 to the surface of the ball 40 is reduced.
The numerical control machine tool ball 30 screw pair with the disassembly-free lubrication structure is characterized in that on the basis of the existing structure, a lubrication oil pipeline 21 is designed in the nut 20, wherein an oil outlet 22 of the lubrication oil pipeline 21 is communicated with a raceway 40 in the nut 20, and the design is convenient for disassembling-free oiling of the ball 30 screw when the whole ball 30 screw pair moves normally, so that maintenance procedures are facilitated. The design of the oil storage groove 11 can store redundant lubricating oil and simultaneously store oil sludge generated in the working process, so that abnormal sound caused by the blockage of the oil sludge in the working process of the ball screw 30 is reduced, the problem of reduction of transmission efficiency is solved, and the service life of the ball screw 30 is prolonged.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present utility model should be covered in the scope of the technical solution of the present utility model.
Claims (7)
1. The utility model provides a digit control machine tool ball screw pair with exempt from to tear open lubricating structure, includes lead screw, nut and ball, all be provided with helical raceway on the surface of lead screw and the inner wall of nut, ball rolling installation is in the passageway that raceway on the lead screw constitutes with the raceway on the nut, a serial communication port, be provided with the lubrication oil pipe in the nut, the oil inlet setting of lubrication oil pipe is on the terminal surface of nut, the oil-out of lubrication oil pipe with raceway intercommunication in the nut, be provided with the oil storage groove in the raceway on the lead screw.
2. The numerical control machine ball screw pair with the disassembly-free lubrication structure according to claim 1, wherein a plurality of oil outlets of the lubrication oil pipeline are arranged, and each oil outlet is respectively communicated with the rollaway nest of each circle.
3. The ball screw pair with the disassembly-free lubrication structure for the numerical control machine tool according to claim 1, wherein the oil storage groove is arranged on the bottom of a raceway on the screw and extends along the raceway in the same direction.
4. The ball screw pair of a numerical control machine tool with a disassembly-free lubrication structure according to claim 1, wherein a vertical distance between an inlet end of the lubrication oil pipe and the screw axis is greater than a vertical distance between an outlet end of the lubrication oil pipe and the screw axis.
5. The ball screw pair with the disassembly-free lubrication structure for the numerical control machine tool according to claim 2, wherein the caliber of the oil outlet of the lubrication oil pipeline is smaller as the caliber of the oil outlet of the lubrication oil pipeline is closer to the oil inlet of the lubrication oil pipeline.
6. The numerical control machine ball screw pair with the disassembly-free lubrication structure according to claim 5, wherein a connector is connected to an oil inlet of the lubrication oil pipeline.
7. The ball screw pair with the disassembly-free lubrication structure for the numerical control machine tool according to claim 1, wherein the edge of the oil storage groove opening is in smooth transition with the inner wall of the raceway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220656082.5U CN219570769U (en) | 2022-03-24 | 2022-03-24 | Numerical control machine tool ball screw pair with disassembly-free lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220656082.5U CN219570769U (en) | 2022-03-24 | 2022-03-24 | Numerical control machine tool ball screw pair with disassembly-free lubrication structure |
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| Publication Number | Publication Date |
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| CN219570769U true CN219570769U (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220656082.5U Active CN219570769U (en) | 2022-03-24 | 2022-03-24 | Numerical control machine tool ball screw pair with disassembly-free lubrication structure |
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| CN (1) | CN219570769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085907A (en) * | 2023-10-20 | 2023-11-21 | 启东市万润机床附件有限公司 | Rust-proof device with cleaning function for ball screw machining |
-
2022
- 2022-03-24 CN CN202220656082.5U patent/CN219570769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085907A (en) * | 2023-10-20 | 2023-11-21 | 启东市万润机床附件有限公司 | Rust-proof device with cleaning function for ball screw machining |
| CN117085907B (en) * | 2023-10-20 | 2023-12-19 | 启东市万润机床附件有限公司 | Rust-proof device with cleaning function for ball screw machining |
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