Novel lead screw supporting device

Abstract

The invention provides a novel lead screw supporting device, and belongs to the technical field of lead screw supporting, the novel lead screw supporting device comprises a lead screw, a rapid and stable oil feeding assembly and a supporting adjusting assembly, the rapid and stable oil feeding assembly comprises a plurality of bearings arranged on the outer wall of a connecting rod, the tops of the bearings are provided with connectors, and the tops of the connectors are provided with oil storage boxes; the bearing lubricating oil adding device has the beneficial effects that through the arrangement of the oil pump, when lubricating oil needs to be added into a bearing, a user can conveniently open the oil pump through the controller, so that the oil pump pumps out oil in the oil storage box through the liquid pumping pipe; a small hole connected with the bearing and the conveying pipe is formed in the connecting position of the bearing and the conveying pipe so that oil conveyed by the conveying pipe can enter a ball in the bearing through the small hole, and therefore the purposes that oil can be rapidly and stably conveyed to the bearing, and the bearing is more lubricated in the using process are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of screw support, and in particular relates to a novel screw support device. Background Art

[0002] Traditional CNC machine tool screw feed shafts mostly use multiple groups of ordinary angular contact ball bearings or a combination of deep groove ball bearings and thrust ball bearings. However, when such configurations are applied to high-speed machine tools, there are problems such as poor axial resistance, difficulty in controlling axial preload, and insufficient support rigidity of the screw. After searching, the application number "CN202210059245.6" discloses "a screw support bearing assembly", which records that "a disc spring is used to load the screw bearing, which can ensure that the bearing operates normally under a reasonable preload and a suitable external load profile. This load is also applied to the screw at the same time, which ensures that the screw is always in a straightened state, which not only ensures the service life of the bearing, but also makes the slide driven by the screw have a higher position." However, the above comparative documents still have the following problems in actual use:

[0003] In actual use, it is inconvenient to add lubricating oil to the bearing, resulting in inconvenient lubrication, and the support point cannot be adjusted during use, resulting in the problem of ineffective load dispersion.

[0004] Based on this, it is extremely practical to provide a device that can achieve fast and stable addition of lubricating oil, convenient lubrication, and has the function of adjusting the support point. Summary of the invention

[0005] The purpose of the present invention is to provide a novel screw support device to solve the above technical problems.

[0006] An embodiment of the present invention provides a novel screw support device, comprising a screw, a fast and stable oil delivery component and a support adjustment component.

[0007] Wherein, a connecting rod is provided on the primary side of the lead screw;

[0008] The fast and stable oil delivery assembly comprises a plurality of bearings arranged on the outer wall of the connecting rod, a connector is arranged on the top of the bearing, an oil storage box is arranged on the top of the connector, an oil pump is arranged on the top of the oil storage box, one end of the oil pump is sealed and connected with a liquid extraction pipe, the end of the liquid extraction pipe is sealed and connected with the oil storage box, the other end of the oil pump is sealed and connected with a delivery pipe, the end of the delivery pipe is sealed and connected with the bearing;

[0009] The support and adjustment assembly includes a connecting plate arranged at the bottom of two bearings, a base is arranged at the bottom of the connecting plate, a limit rod is arranged on the inner wall of the base, and the outer wall of the limit rod is slidably connected to two moving bars, a plurality of moving plates are arranged on the top of the two moving bars, and two supporting plates are arranged on the top of the plurality of moving plates, and the tops of the two support plates are slidably connected to a support seat, the top of the support seat is fixedly connected to one of the bearings, a torque motor is arranged on one side of the base, and a bidirectional screw rod is arranged on one side of the inner wall of the base at the output shaft end of the torque motor passing through, one side of the bidirectional screw rod is rotatably connected to one side of the inner wall of the base, the outer wall of the bidirectional screw rod is threadedly connected to the moving bar, and the other side of the screw rod is provided with a structure identical to that of the moving bar.

[0010] Moreover, two slide grooves are arranged on the top of the base, and the outer walls of a plurality of the movable plates are slidably connected with the slide grooves.

[0011] Moreover, the tops of the plurality of oil storage boxes are sealed and connected with a one-way valve.

[0012] Moreover, both sides of the two support seats are slidably connected to the limiting strips, and one side of a plurality of the limiting strips is fixedly connected to the connecting plate.

[0013] Furthermore, both connecting rods are cast from metallic chromium.

[0014] Moreover, the two bases are both cast from titanium alloy, and a controller is arranged on one side of one of the bases.

[0015] Furthermore, the oil pump and the torque motor are both electrically connected to a controller, and the controller is electrically connected to an external power source.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) The oil pump is provided to facilitate adding lubricating oil to the bearing when it is necessary to do so. The user can turn on the oil pump through the controller, so that the oil pump can extract the oil in the oil storage box through the suction pipe and send it into the bearing through the delivery pipe. "A small hole connected to the bearing and the delivery pipe is provided at the connection point between the bearing and the delivery pipe, so that the oil delivered by the delivery pipe can enter the ball in the bearing through the small hole", thereby achieving fast and stable oil delivery to the bearing, making it more lubricated during use.

[0018] 2) Through the torque motor provided, it is convenient to turn on the torque motor through the controller according to the load characteristics and operation requirements of the screw during use, so that the torque motor drives the bidirectional screw to rotate, and the two-way screw makes the two moving bars move closer to the middle or separate to the outside through the cooperation of the external thread and the limit rod, and then the moving bar drives the moving plate and then drives the support plate to move. The movement of the support plate will slide at the bottom of the support seat, thereby realizing the reasonable adjustment of the position of the support point. The appropriate support point position can more effectively disperse the load and improve the support rigidity. In addition, the bearing can make the axial resistance performance good and the axial preload is easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the base of the present invention;

[0021] Figure 3 It is a schematic diagram of the connecting rod top structure of the present invention.

[0022] In the figure: 100, screw; 110, connecting rod; 200, fast and stable oil delivery assembly; 210, bearing; 220, connector; 230, oil storage box; 240, oil pump; 250, suction pipe; 260, delivery pipe; 300, support and adjustment assembly; 310, connecting plate; 320, base; 330, limit rod; 340, moving bar; 350, support plate; 360, torque motor; 370, bidirectional screw; 400, one-way valve; 500, limit bar. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example

[0025] See also Figure 1-3 A novel screw support device includes a screw 100, a fast and stable oil delivery component 200 and a support adjustment component 300.

[0026] For details, please refer to Figure 1 A connecting rod 110 is provided on the primary side of the lead screw 100 .

[0027] See also Figure 3The fast and stable oil delivery assembly 200 includes a plurality of bearings 210 arranged on the outer wall of the connecting rod 110, a connecting head 220 is arranged on the top of the bearing 210, an oil storage box 230 is arranged on the top of the connecting head 220, an oil pump 240 is arranged on the top of the oil storage box 230, one end of the oil pump 240 is sealed and connected to a liquid extraction pipe 250, the end of the liquid extraction pipe 250 is sealed and connected to the oil storage box 230, the other end of the oil pump 240 is sealed and connected to a delivery pipe 260, and the end of the delivery pipe 260 is sealed and connected to the bearing 210.

[0028] In a specific embodiment, an oil pump 240 is provided, so that when it is necessary to add lubricating oil to the bearing 210, the user turns on the oil pump 240 through the controller, so that the oil pump 240 extracts the oil in the oil storage box 230 through the suction pipe 250, and delivers the oil to the bearing 210 through the delivery pipe 260. "A small hole connected to the bearing 210 and the delivery pipe 260 is opened at the connection between the bearing 210 and the delivery pipe 260, so that the oil delivered by the delivery pipe 260 can enter the ball in the bearing 210 through the small hole", thereby achieving the purpose of quickly and stably delivering oil to the bearing 210, making it more lubricated during use.

[0029] See also Figure 2 The support and adjustment component 300 includes a connecting plate 310 arranged at the bottom of two bearings 210, a base 320 is arranged at the bottom of the connecting plate 310, a limit rod 330 is arranged on the inner wall of the base 320, and two moving bars 340 are slidably connected to the outer wall of the limit rod 330, and a plurality of moving plates are arranged on the top of the two moving bars 340, and two supporting plates 350 are arranged on the top of the plurality of moving plates, and a support seat is slidably connected to the top of the two supporting plates 350, and the top of the support seat is fixedly connected to one of the bearings 210, and a torque motor 360 is arranged on one side of the base 320, and a bidirectional screw rod 370 is arranged on one side of the inner wall of the base 320 at the output shaft end of the torque motor 360, and one side of the bidirectional screw rod 370 is rotatably connected to one side of the inner wall of the base 320, and the outer wall of the bidirectional screw rod 370 is threadedly connected to the moving bar 340, and the other side of the screw 100 is provided with the same structure.

[0030] In a specific embodiment, a torque motor 360 is provided, so that when in use, according to the load characteristics and operation requirements of the screw 100, the torque motor 360 can be conveniently turned on through the controller, so that the torque motor 360 drives the bidirectional screw 370 to rotate, and the bidirectional screw 370 cooperates with the limit rod 330 through the external thread to make the two moving bars 340 move closer to the middle or separate to the outside, and then the moving bar 340 drives the moving plate and then drives the support plate 350 to move. The movement of the support plate 350 will slide at the bottom of the support seat, thereby realizing the reasonable adjustment of the position of the support point. The appropriate support point position can more effectively disperse the load and improve the support rigidity, and the bearings 210 can have good axial resistance performance and the axial preload is easy to control.

[0031] See also Figure 2 Two slide grooves are provided on the top of the base 320, and the outer walls of the plurality of movable plates are slidably connected to the slide grooves.

[0032] In a specific embodiment, a slide groove is provided so that the movable plate can slide in the slide groove when the movable plate moves during use, so that the movable plate can be more stable when moving, thereby improving stability.

[0033] See also Figure 3 The tops of the plurality of oil storage boxes 230 are sealed and connected to a one-way valve 400 .

[0034] In a specific embodiment, the one-way valve 400 is provided to facilitate the user to add oil to the oil storage box 230 by using the one-way valve 400 after the oil in the oil storage box 230 is used up, so as to lubricate the ball bearings.

[0035] See also Figure 3 Both sides of the two support seats are slidably connected to the limit bars 500, and one side of several limit bars 500 is fixedly connected to the connecting plate 310.

[0036] In a specific embodiment, by providing a limiting strip 500, the supporting seat can be conveniently limited by the limiting strip 500 during use, so that it is not easy to slide during use, thereby improving its stability.

[0037] See also Figure 3 , both connecting rods 110 are cast from metal chromium.

[0038] In a specific embodiment, by providing the metal chromium, the strong and durable properties of the metal chromium can be utilized during use, so that the connecting rod 110 can take advantage of the strong and durable properties of the metal chromium during use, making the connecting rod 110 more stable.

[0039] See also Figure 3The two bases 320 are both made of titanium alloy, and a controller is disposed on one side of one of the bases 320 .

[0040] In a specific embodiment, by providing a titanium alloy, the strong and durable properties of the titanium alloy can be utilized during use, so that the base 320 can more stably support the top parts of the base 320 during use, thereby improving stability.

[0041] See also Figure 1-3 The oil pump 240 and the torque motor 360 are both electrically connected to the controller, and the controller is electrically connected to the external power supply.

[0042] In a specific embodiment, a controller is provided to facilitate power-on control of electrical equipment, so that the electrical equipment can be powered on when it needs electricity, avoiding the situation where it cannot be powered on when it is needed.

[0043] During use, first, the oil pump 240 is provided. When it is necessary to add lubricating oil to the bearing 210, the user turns on the oil pump 240 through the controller, so that the oil pump 240 extracts the oil in the oil storage box 230 through the suction pipe 250, and delivers it to the bearing 210 through the delivery pipe 260. "A small hole connected to the bearing 210 and the delivery pipe 260 is opened at the connection between the bearing 210 and the delivery pipe 260, so that the oil delivered by the delivery pipe 260 can enter the ball in the bearing 210 through the small hole", so as to achieve the purpose of fast and stable oil delivery to the bearing 210, so that it is more lubricated during use. Then, through the torque motor 360, it is convenient to be able to According to the load characteristics and operation requirements of the screw 100, the torque motor 360 is conveniently turned on through the controller, so that the torque motor 360 drives the bidirectional screw 370 to rotate, and the bidirectional screw 370 cooperates with the limit rod 330 through the external thread to make the two moving bars 340 move closer to the middle or separate to the outside, and then the moving bar 340 drives the moving plate and then drives the support plate 350 to move, and finally the support plate 350 moves and slides at the bottom of the support seat, thereby realizing the reasonable adjustment of the support point position. The appropriate support point position can more effectively disperse the load and improve the support rigidity, and the bearings 210 can have good axial resistance performance and the axial preload is convenient to control.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of screw support device, characterized in that: include: A lead screw (100), wherein a connecting rod (110) is provided on the primary side of the lead screw (100); A fast and stable oil delivery assembly (200), the fast and stable oil delivery assembly (200) comprising a plurality of bearings (210) arranged on the outer wall of a connecting rod (110), a connector (220) being arranged on the top of the bearing (210), an oil storage box (230) being arranged on the top of the connector (220), an oil pump (240) being arranged on the top of the oil storage box (230), one end of the oil pump (240) being sealedly connected to a liquid extraction pipe (250), the end of the liquid extraction pipe (250) being sealedly connected to the oil storage box (230), the other end of the oil pump (240) being sealedly connected to a delivery pipe (260), the end of the delivery pipe (260) being sealedly connected to the bearing (210); A support adjustment component (300), the support adjustment component (300) comprising a connecting plate (310) arranged at the bottom of two bearings (210), a base (320) being arranged at the bottom of the connecting plate (310), a limit rod (330) being arranged on the inner wall of the base (320), two moving bars (340) being slidably connected to the outer wall of the limit rod (330), a plurality of moving plates being arranged at the top of the two moving bars (340), two support plates (350) being arranged at the top of the two support plates (350), 0) is slidably connected to a support seat at the top, the top of the support seat is fixedly connected to one of the bearings (210), a torque motor (360) is arranged on one side of the base (320), the output shaft end of the torque motor (360) passes through the inner wall of the base (320) and a bidirectional screw rod (370) is arranged on one side, one side of the bidirectional screw rod (370) is rotatably connected to one side of the inner wall of the base (320), the outer wall of the bidirectional screw rod (370) is threadedly connected to the moving bar (340), and the other side of the screw rod (100) is provided with the same structure.

2. A novel screw support device according to claim 1, characterized in that: Two slide grooves are provided on the top of the base (320), and the outer walls of the plurality of movable plates are slidably connected to the slide grooves.

3. A novel screw support device according to claim 1, characterized in that: The tops of the plurality of oil storage boxes (230) are all sealed and connected to a one-way valve (400).

4. A novel screw support device according to claim 1, characterized in that: Both sides of the two support seats are slidably connected to the limit strips (500), and one side of a plurality of the limit strips (500) is fixedly connected to the connection plate (310).

5. A novel screw support device according to claim 1, characterized in that: The two connecting rods (110) are both cast from metal chromium.

6. A novel screw support device according to claim 2, characterized in that: The two bases (320) are both cast from titanium alloy, and a controller is provided on one side of one of the bases (320).

7. A novel screw support device according to claim 6, characterized in that: The oil pump (240) and the torque motor (360) are both electrically connected to a controller, and the controller is electrically connected to an external power source.

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