CN117662611A

CN117662611A - Linear guide rail structure

Info

Publication number: CN117662611A
Application number: CN202311667357.0A
Authority: CN
Inventors: 韩涵; 于洋; 焦东东; 刘旭琛; 常腾蛟; 宫雅倩
Original assignee: Hebei Weidi Automation Technology Co ltd
Current assignee: Hebei Weidi Automation Technology Co ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-03-08
Anticipated expiration: 2043-12-06
Also published as: CN117662611B

Abstract

The invention provides a linear guide rail structure, which belongs to the technical field of linear guide rails and comprises a guide rail body and four oiling mechanisms, wherein the guide rail body is provided with two first sliding grooves and two second sliding grooves, a containing cavity is arranged in the guide rail body, communication holes are formed in the first sliding grooves and the second sliding grooves, and a sealing cover is arranged at the upper end of the guide rail body; the oiling mechanism comprises a support frame, an oiling pipe, a driving assembly, an oil pump and an oil storage pipeline, wherein the support frame is fixedly arranged in the accommodating cavity, the oiling pipe is arranged on the support frame, one end of the oiling pipe is used for penetrating through the communication hole and entering the circulation passage of the sliding block, and the end part of the oiling pipe is provided with an arc-shaped bending section; the driving component drives the oil injection pipe to linearly move along the axial direction of the communication hole and drives the oil injection pipe to rotate; the oil pump is connected with the oil filling pipe and the oil storage pipeline. According to the linear guide rail structure provided by the invention, lubricating oil is filled from the guide rail body towards the sliding block, the oil filling equipment is not required to be arranged outside, the arranged pipelines are eliminated, and the working area is orderly.

Description

Linear guide rail structure

Technical Field

The invention belongs to the technical field of linear guide rails, and particularly relates to a linear guide rail structure.

Background

The linear guide rail is used for high-precision or high-speed linear reciprocating motion occasions, can bear certain torque, and can realize high-precision linear motion under the condition of high load. When the linear guide rail is used, lubricating oil needs to be added into the sliding block, so that the friction force born by the balls and the like in the sliding block is small, and the linear guide rail can work more accurately and stably. At present, an oil nozzle is arranged on a sliding block, lubricating oil or lubricating grease is added into the oil nozzle after the sliding block is used for a period of time, and the lubricating oil or the lubricating grease enters a circulation passage where balls are positioned; however, with such a structure, there are many oil injection devices and pipelines in the working area, which results in a more chaotic working area and easy occurrence of accidents.

Disclosure of Invention

The invention aims to provide a linear guide rail structure, which solves the technical problems that in the prior art, oil injection equipment is placed in a working area, pipelines are more, the working area is more disordered, and accidents are easy to generate.

In order to achieve the above purpose, the invention adopts the following technical scheme: the linear guide rail structure comprises a guide rail body and four oiling mechanisms arranged in the guide rail body, wherein the oiling mechanisms are used for adding lubricating oil from the guide rail body towards a sliding block;

two sides of the guide rail body are respectively provided with two first sliding grooves and two second sliding grooves; the guide rail body is internally provided with accommodating cavities corresponding to the two first sliding grooves and the two second sliding grooves respectively; communication holes communicated with the corresponding accommodating cavities are formed in the first sliding groove and the second sliding groove; the upper end of the guide rail body is provided with a closing cover which is detachably connected with the four accommodating cavities and used for closing the four accommodating cavities;

the four oiling mechanisms are respectively arranged in the four accommodating cavities, and each communication hole corresponds to one corresponding communication hole; the oil injection mechanism comprises a support frame, an oil injection pipe, a driving assembly, an oil pump and an oil storage pipeline, wherein the support frame is fixedly arranged on the inner wall of the accommodating cavity, the oil injection pipe is arranged on the support frame, one end of the oil injection pipe is used for penetrating through the communication hole and entering the circulation passage of the sliding block, and the end part of the oil injection pipe is provided with an arc-shaped bending section for extruding balls in the sliding block to move; the driving assembly is connected with the oil filler pipe and is used for driving the oil filler pipe to linearly move along the axial direction of the communication hole and driving the oil filler pipe to rotate; the oil pump is arranged on the support frame, connected with the oil filling pipe and the oil storage pipeline and used for pumping the lubricating oil in the oil storage pipeline into the oil filling pipe; the oil storage pipeline is far away from one end of the oil pump and upwards approaches the closing cap.

In one possible implementation, the driving assembly includes:

the linear driver is fixedly arranged on the support frame, and the free end of the linear driver faces the communication hole;

the bearing plate is fixedly arranged on the free end of the linear driver; the bearing plate is provided with a through hole; the oil injection pipe penetrates through the through hole and is in rotary fit connection with the through hole;

the driving structure is fixedly arranged on the bearing plate, is in transmission connection with the outer side surface of the oil injection pipe and is used for driving the oil injection pipe to rotate;

the oil injection pipe is provided with a telescopic pipe at one end close to the oil pump, the oil injection pipe is rotationally connected with one end of the telescopic pipe, and the other end of the telescopic pipe is fixedly connected with the oil pump.

In one possible implementation manner, an annular rotary disc is arranged at the end part of the telescopic tube, and a flange plate fixedly connected with the annular rotary disc is arranged on the oil injection tube; and a sealing ring is arranged between the annular turntable and the flange plate.

In one possible implementation, the support frame includes a plurality of support legs and a mounting plate fixedly mounted to top ends of the plurality of support legs; the oil injection pipe, the driving assembly and the oil pump are arranged on the mounting plate; four first counter bore groups are arranged on the inner wall of the accommodating cavity, the first counter bore groups correspond to the supporting frames one by one, screw holes are formed in the bottom ends of the supporting legs, and the first counter bores in the first counter bore groups are matched with the supporting legs on the same supporting frame; the first sliding groove and the second sliding groove are respectively provided with two second counter bore groups, the second counter bore groups correspond to the first counter bore groups one by one, the first counter bores are communicated with the corresponding second counter bores, and the supporting legs are fixedly connected with the guide rail body through bolts penetrating through the second counter bores.

In one possible implementation manner, two sliding rails are arranged at the bottom of the accommodating cavity and correspond to the two first counter bore groups at the lower side respectively, and a sliding frame connected to the sliding rails in a sliding fit manner is further arranged on the supporting frame; the bottom of the supporting leg is provided with a mounting surface matched with the inner wall of the accommodating cavity.

In one possible implementation manner, two oil injection pipes are arranged on each oil injection mechanism and are arranged in parallel at intervals, and communication holes are formed in each of the first sliding groove and the second sliding groove; the oil pump is connected with the two oil injection pipes, and the two oil injection pipes respectively penetrate through the corresponding communication holes to enter the two sides of the circulating oil path of the sliding block.

In one possible implementation manner, a support column is arranged in the accommodating cavity, the support column divides the accommodating cavity into two chambers, and the two first sliding grooves and the two second sliding grooves respectively correspond to the two chambers; the sealing covers are covered above the two chambers, and the sealing covers are connected with the upper ends of the support columns; the four oiling mechanisms are arranged in a group in pairs and are respectively arranged in the two chambers.

In one possible implementation manner, the upper end of the cavity is provided with a supporting plate which is horizontally arranged, two connecting holes are formed in the supporting plate, external thread sections are formed on the outer side face of the oil storage pipeline, and the oil storage pipeline passes through the corresponding connecting holes and is fixedly connected to the supporting plate by nuts.

In one possible implementation manner, the support column is internally provided with an oil storage cavity and lubricating oil contained in the oil storage cavity, and one end, away from the oil pump, of the oil storage pipeline is communicated with the oil storage cavity.

In one possible implementation manner, the linear guide rail structure further includes:

the limit baffles are arranged at two ends of the guide rail body and are detachably connected with the guide rail body;

the number of the telescopic shields is two, and the telescopic shields are of corrugated structures; the two telescopic shields are respectively arranged between the sliding block and the two limit baffles; one end of each of the two telescopic shields is connected with the two end covers on the sliding block, and the other end of each of the two telescopic shields is connected with the two limit baffles; the lower end of the telescopic shield is provided with a notch for avoiding the guide rail body, and the inner wall of the notch is provided with a sealing strip.

The linear guide rail structure provided by the invention has the beneficial effects that: compared with the prior art, the linear guide rail structure has the advantages that when the linear guide rail structure is used, the guide rail body is provided with the accommodating cavity, the two first sliding grooves and the two second sliding grooves are corresponding to the accommodating cavity, and the first sliding grooves and the second sliding grooves are provided with the communication holes; the support frame, the oil injection pipe, the driving assembly, the oil pump and the oil storage pipeline in each oil injection mechanism are arranged in the accommodating cavity, and the oil injection pipes in the four oil injection mechanisms correspond to the four communication holes; when the sliding block needs to be filled with lubricating oil, the sliding block moves to a position corresponding to the oil injection mechanism, firstly, the lubricating oil is added into the oil storage pipeline, the driving assembly is started to control the rotation of the oil injection pipe and simultaneously move linearly outwards to pass through the communication hole, and the arc-shaped bending section contacts with the balls and acts on the outer side surfaces of the balls to push the balls to move left and right so that the oil injection pipe extends into a circulation passage on the sliding block; starting an oil pump to pump the lubricating oil in the oil storage pipeline into the oil injection pipe, and adding the lubricating oil into a circulation passage of the sliding block through the oil injection pipe; through this kind of mode, install strut, oil filler pipe, drive assembly, oil pump and oil storage pipeline in the inside accommodation chamber of guide rail body, and corresponding with first spout, second spout to annotate lubricating oil from the guide rail body towards the slider, need not external arrangement oiling equipment, eliminated the pipeline of arranging, make the work area orderly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an inner wall structure of a linear guide rail structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural diagram of a filler pipe according to an embodiment of the present invention;

fig. 4 is a schematic connection diagram of an oil storage pipeline and a support plate according to an embodiment of the present invention;

fig. 5 is a schematic connection diagram of a supporting leg and a guide rail body according to an embodiment of the present invention;

fig. 6 is a top view of a guide rail body according to an embodiment of the present invention;

fig. 7 is a schematic connection diagram of a linear guide structure and a slider according to an embodiment of the present invention.

Wherein, each reference sign in the figure:

1. a guide rail body; 11. a first chute; 12. a second chute; 13. a receiving chamber; 14. a communication hole; 15. a closing cap; 16. a support plate; 17. a nut; 2. an oiling mechanism; 21. a support frame; 22. a filler pipe; 23. an oil pump; 24. an oil storage pipe; 25. an arc bending section; 26. support legs; 27. a mounting plate; 3. a drive assembly; 31. a linear driver; 32. a carrying plate; 321. a rotation hole; 33. a driving structure; 34. a telescopic tube; 35. an annular turntable; 36. a flange plate; 4. a first counterbore; 41. a second counterbore; 42. a bolt; 5. a support column; 6. a limit baffle; 61. a telescoping shield; 7. a sliding block.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 7, a linear guide structure provided by the present invention will now be described. The linear guide rail structure comprises a guide rail body 1 and four oiling mechanisms 2 arranged in the guide rail body 1, wherein the oiling mechanisms 2 are used for adding lubricating oil from the guide rail body 1 towards a sliding block 7;

two sides of the guide rail body 1 are respectively provided with two first sliding grooves 11 and two second sliding grooves 12; the guide rail body 1 is internally provided with accommodating cavities 13 corresponding to the two first sliding grooves 11 and the two second sliding grooves 12 respectively; the first chute 11 and the second chute 12 are provided with communication holes 14 communicated with the corresponding accommodating cavities 13; the upper end of the guide rail body 1 is provided with a closing cover 15 which is detachably connected with the four accommodating cavities 13;

the four oiling mechanisms 2 are respectively arranged in the four accommodating cavities 13, and each communication hole 14 corresponds to one another; the oiling mechanism 2 comprises a support frame 21, an oiling pipe 22, a driving assembly 3, an oil pump 23 and an oil storage pipeline 24, wherein the support frame 21 is fixedly arranged on the inner wall of the accommodating cavity 13, the oiling pipe 22 is arranged on the support frame 21, one end of the oiling pipe 22 is used for penetrating through the communication hole 14 and entering a circulation passage of the sliding block 7, and the end part of the oiling pipe 22 is provided with an arc-shaped bending section 25 for extruding balls in the sliding block 7 to move; the driving assembly 3 is connected with the filler pipe 22 and is used for driving the filler pipe 22 to linearly move along the axial direction of the communication hole 14 and driving the filler pipe 22 to rotate; the oil pump 23 is mounted on the support frame 21 and connected with the oil filler pipe 22 and the oil storage pipeline 24, and is used for feeding the lubricating oil pump 23 in the oil storage pipeline 24 into the oil filler pipe 22; the end of the oil storage pipe 24 remote from the oil pump 23 extends upwardly close to the closing cap 15.

Compared with the prior art, in the linear guide rail structure provided by the invention, when the linear guide rail structure is used, the guide rail body 1 is provided with the accommodating cavity 13, the two first sliding grooves 11 and the two second sliding grooves 12 are corresponding to the accommodating cavity 13, and the first sliding grooves 11 and the second sliding grooves 12 are provided with the communication holes 14; the supporting frame 21, the oil filling pipe 22, the driving assembly 3, the oil pump 23 and the oil storage pipeline 24 in each oil filling mechanism 2 are installed in the accommodating cavity 13, and the oil filling pipes 22 in the four oil filling mechanisms 2 correspond to the four communication holes 14; when the sliding block 7 needs to be filled with lubricating oil, the sliding block 7 moves to a position corresponding to the oiling mechanism 2, firstly, the lubricating oil is added into the oil storage pipeline 24, the driving assembly 3 is started to control the rotation of the oiling pipe 22 and simultaneously move linearly outwards to pass through the communication hole 14, the arc-shaped bending section 25 contacts with the balls and acts on the outer side surface of the balls to push the balls to move left and right, so that the oiling pipe 22 extends into a circulation passage on the sliding block 7; starting the oil pump 23 to feed the oil pump 23 in the oil storage pipe 24 into the oil filler pipe 22, and feeding the oil into the circulation path of the slider 7 through the oil filler pipe 22; in this way, the bracket, the oil filling pipe 22, the driving assembly 3, the oil pump 23 and the oil storage pipeline 24 are arranged in the accommodating cavity 13 inside the guide rail body 1 and correspond to the first sliding groove 11 and the second sliding groove 12, so that lubricating oil is filled from the guide rail body 1 towards the sliding block 7, the oil filling equipment is not required to be arranged outside, the arranged pipelines are eliminated, and the working area is orderly.

Referring to fig. 1 to 3, as a specific embodiment of the linear guide structure provided by the present invention, the driving assembly 3 includes a linear driver 31, a bearing plate 32 and a driving structure 33, wherein the linear driver 31 is fixedly mounted on the support frame 21, and the free end is arranged towards the communication hole 14; the bearing plate 32 is fixedly arranged on the free end of the linear driver 31; the bearing plate 32 is provided with a through hole 321; the filler pipe 22 passes through the through hole 321 and is connected with the through hole 321 in a rotating fit manner; the driving structure 33 is fixedly arranged on the bearing plate 32, is in transmission connection with the outer side surface of the filler pipe 22, and is used for driving the filler pipe 22 to rotate; one end of the oil injection pipe 22, which is close to the oil pump 23, is provided with a telescopic pipe 34, the oil injection pipe 22 is rotationally connected with one end of the telescopic pipe 34, and the other end is fixedly connected with the oil pump 23; when the linear actuator 31 is started to control the carrier plate 32 and the filler pipe 22 to linearly move together and the end part of the filler pipe 22 passes through the communication hole 14 and enters the slider 7, the driving structure 33 is started to control the filler pipe 22 to rotate, and the filler pipe 22 is prevented from being blocked by the balls and enters the deep inside the slider 7 in a manner of controlling the filler pipe 22 to linearly move and rotate, so that the oiling effect is better. And the telescopic pipe 34 is arranged between the oil filling pipe 22 and the oil pump 23 and is rotatably connected with the telescopic pipe 34, so that the oil filling operation is not influenced by the action of the oil filling pipe 22.

Referring to fig. 2 and 3, as a specific embodiment of the linear guide rail structure provided by the present invention, an annular turntable 35 is disposed at an end of the telescopic tube 34, and a flange 36 fixedly connected to the annular turntable 35 is disposed on the oil filler pipe 22; a sealing ring is arranged between the annular turntable 35 and the flange 36; the end of the telescopic pipe 34 is provided with an annular rotary table 35, the annular rotary table 35 is arranged on the telescopic pipe 34 in a limiting mode, the annular rotary table 35 can rotate and cannot move linearly, a flange 36 is arranged on the oil filler pipe 22, and the flange 36 and the annular rotary table 35 are fixedly connected together through bolts 42. And meanwhile, a sealing ring is arranged between the flange 36 and the annular turntable 35, so that the tightness between the filler pipe 22 and the telescopic pipe 34 is improved.

Referring to fig. 2 and 5, as an embodiment of the linear guide structure provided by the present invention, the supporting frame 21 includes a plurality of supporting legs 26 and a mounting plate 27 fixedly mounted on top ends of the plurality of supporting legs 26; the filler pipe 22, the driving assembly 3 and the oil pump 23 are mounted on a mounting plate 27; four first counter bores 4 are arranged on the inner wall of the accommodating cavity 13, the plurality of first counter bores 4 are in one-to-one correspondence with the plurality of supporting frames 21, screw holes are formed in the bottom ends of the supporting legs 26, and the plurality of first counter bores 4 in the first counter bores 4 are matched with the plurality of supporting legs 26 on the same supporting frame 21; two second counter bores 41 are arranged on the first chute 11 and the second chute 12, the second counter bores 41 are in one-to-one correspondence with the first counter bores 4, the first counter bores 4 are communicated with the corresponding second counter bores 41, and the supporting legs 26 are fixedly connected with the guide rail body 1 through bolts 42 penetrating through the second counter bores 41; the mounting plate 27 and the plurality of support legs 26 constitute a support frame 21, and the filler pipe 22 and the drive assembly 3 are mounted in a mounting chamber defined by the support legs 26 and the support frame 21, while the oil pump 23 is fixedly mounted on the mounting plate 27. Four first counter bores 4 are formed in the inner wall of the accommodating cavity 13, and the four first counter bores 4 correspond to the two first sliding grooves 11 and the two second sliding grooves 12; simultaneously, two first sliding grooves 11 and two second sliding grooves 12 on the guide rail body 1 are respectively provided with a second counter bore 41 group, the four second counter bore 41 groups are in one-to-one correspondence with the four first counter bore 4 groups, and the number of the first counter bores 4 in the first counter bore 4 groups is equal to the number of the supporting legs 26. When the support leg 26 is mounted, the support leg 26 is clamped into the first counter bore 4, and then the support leg 26 is fixed on the guide rail body 1 by using the bolts 42 to pass through the second counter bore 41 from the outer side of the guide rail body 1.

Referring to fig. 1 and fig. 2, as a specific embodiment of the linear guide rail structure provided by the present invention, two sliding rails are disposed at the bottom of the accommodating cavity 13, corresponding to the two first counter bores 4 on the lower side respectively, and a sliding frame connected to the sliding rails in a sliding fit manner is further disposed on the supporting frame 21; the bottom ends of the supporting legs 26 are provided with mounting surfaces matched with the inner wall of the accommodating cavity 13; since the two oiling mechanisms 2 are installed at the bottom of the accommodating chamber 13, the two oiling mechanisms 2 are difficult to install and take a long time. Therefore, the two sides of the bottom of the accommodating cavity 13 are provided with sliding rails which correspond to the two first counter bores 4; when two oiling mechanisms 2 are installed, the sliding frame on the oiling mechanism 2 is matched with and installed on the sliding rail, so that the oiling mechanism 2 moves towards the first counter bore 4 group along the sliding rail, and the supporting legs 26 on the supporting frame 21 are accurately and quickly matched with and installed in the first counter bore 4 group.

Referring to fig. 1 and fig. 2, as a specific embodiment of the linear guide rail structure provided by the present invention, two oil injection pipes 22 are disposed on each oil injection mechanism 2, and are arranged in parallel and at intervals, and communication holes 14 are disposed on each of the first chute 11 and the second chute 12; the oil pump 23 is connected with two oil filler pipes 22, and the two oil filler pipes 22 respectively penetrate through the corresponding communication holes 14 to enter the two sides of the circulating oil path of the sliding block 7; each oiling mechanism 2 is provided with two oiling pipes 22, and the two oiling pipes 22 are respectively arranged near two sides of the circulating passage on the sliding block 7, so that the uniformity of filling the lubricating oil can be improved when the lubricating oil is added into the sliding block 7. And the arc-shaped bending sections 25 on the two oil filling pipes 22 are opposite in orientation and consistent in orientation with the length direction of the circulating oil path.

Referring to fig. 1 and fig. 2, as a specific embodiment of the linear guide rail structure provided by the present invention, a support column 5 is disposed in a receiving cavity 13, the support column 5 divides the receiving cavity 13 into two chambers, and two first sliding grooves 11 and two second sliding grooves 12 respectively correspond to the two chambers; the sealing cover 15 covers the two chambers, and the sealing cover 15 is connected with the upper ends of the support columns 5; the four oiling mechanisms 2 are arranged in two chambers in a group; the holding cavity 13 can be divided into two cavities by the support column 5, so that the four oiling mechanisms 2 are respectively arranged in the two cavities in a group by group; and the closing cap 15 is also convenient to install by means of the supporting column 5, so that the closing cap 15 is firmly and stably installed. Set up support column 5 integrated into one piece on guide rail body 1, improved the bearing capacity and the intensity of whole guide rail body 1.

Referring to fig. 1 and fig. 4, as a specific embodiment of the linear guide rail structure provided by the invention, a supporting plate 16 horizontally arranged is arranged at the upper end of a chamber, two connecting holes are arranged on the supporting plate 16, external thread sections are arranged on the outer side surfaces of oil storage pipelines 24, and the oil storage pipelines 24 pass through the corresponding connecting holes and are fixedly connected to the supporting plate 16 by nuts 17; after the oiling mechanism 2 is installed in the accommodating cavity 13, the four oil storage pipelines 24 extend vertically upwards, the two support plates 16 are installed in the two cavities, and the two connection holes are formed in the support plates 16, so that the four connection holes are matched with the four oil storage pipelines 24, and then the oil storage pipelines 24 are locked and fixed on the support plates 16 by using nuts 17, so that the oil storage pipelines 24 can work stably and firmly. A clamping block is arranged in the cavity, and a clamping groove matched with the clamping block is arranged on the lower end surface of the supporting plate 16.

Referring to fig. 1 and 2, as a specific embodiment of the linear guide rail structure provided by the present invention, an oil storage cavity and lubricating oil contained in the oil storage cavity are disposed inside the support column 5, and an end of the oil storage pipeline 24 away from the oil pump 23 is communicated with the oil storage cavity; the supporting column 5 is used for containing more lubricating oil, so that the lubricating oil can be sufficiently and long-time added into the sliding block 7 by the oil injection mechanism 2 without supplementing the lubricating oil into the oil storage pipeline 24 for many times. Specifically, the upper end of the support column 5 is provided with an oil storage cavity, and the oil storage cavity has a certain radial dimension and depth, so that more lubricating oil can be contained. The upper ends of the four oil storage pipelines 24 are communicated with the lower end of the oil storage cavity, so that lubricating oil in the oil storage cavity can be fully utilized, energy sources can be saved, and the pressure of the lubricating oil is utilized to flow into the oil filling pipe 22. An electromagnetic valve is installed on the oil storage pipeline 24 and is used for controlling the on-off of the oil storage pipeline 24.

Referring to fig. 1 and 7, as a specific embodiment of the linear guide structure provided by the present invention, the linear guide structure further includes a limit baffle 6 and a telescopic shield 61, where the limit baffle 6 is installed at two ends of the guide body 1 and is detachably connected with the guide body 1; the number of the telescopic shields 61 is two, and the telescopic shields have a corrugated structure; the two telescopic shields 61 are respectively arranged between the sliding block 7 and the two limit baffles 6; one end of each of the two telescopic shields 61 is connected with the two end covers on the sliding block 7, and the other end of each of the two telescopic shields is connected with the two limit baffles 6; the lower end of the telescopic shield 61 is provided with a notch for avoiding the guide rail body 1, and the inner wall of the notch is provided with a sealing strip; when in use, the sliding device is firstly arranged on the guide rail body 1 in a sliding way, and two limit baffles 6 are arranged at two ends of the guide rail body 1; two telescopic shields 61 are respectively arranged between the sliding block 7 and the two limit baffles 6 by means of the gaps, the guide rail body 1 is covered, and two ends of the telescopic shields 61 are respectively connected with the end covers of the sliding block 7 and the limit baffles 6, so that the aim of always surrounding the guide rail body 1 without being disturbed by external impurities, dust and the like and polluting is fulfilled while the sliding block 7 does not influence the movement of the sliding block 7 on the guide rail body 1. Sealing strips are arranged on two sides of the inside of the notch, so that the sealing strips are connected with the side faces of the guide rail body 1, and the guide rail body 1 is protected from being polluted by the two side faces.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The linear guide rail structure is characterized by comprising a guide rail body and four oiling mechanisms arranged in the guide rail body, wherein the oiling mechanisms are used for adding lubricating oil from the guide rail body towards a sliding block;

2. The linear guide structure of claim 1, wherein the drive assembly comprises:

3. The linear guide rail structure according to claim 2, wherein an annular turntable is arranged at the end part of the telescopic pipe, and a flange plate fixedly connected with the annular turntable is arranged on the oil filling pipe; and a sealing ring is arranged between the annular turntable and the flange plate.

4. The linear guide structure of claim 1, wherein the support frame comprises a plurality of support legs and a mounting plate fixedly mounted to top ends of the plurality of support legs; the oil injection pipe, the driving assembly and the oil pump are arranged on the mounting plate; four first counter bore groups are arranged on the inner wall of the accommodating cavity, the first counter bore groups correspond to the supporting frames one by one, screw holes are formed in the bottom ends of the supporting legs, and the first counter bores in the first counter bore groups are matched with the supporting legs on the same supporting frame; the first sliding groove and the second sliding groove are respectively provided with two second counter bore groups, the second counter bore groups correspond to the first counter bore groups one by one, the first counter bores are communicated with the corresponding second counter bores, and the supporting legs are fixedly connected with the guide rail body through bolts penetrating through the second counter bores.

5. The linear guide rail structure according to claim 4, wherein two sliding rails are arranged at the bottom of the accommodating cavity and correspond to the two first counter bore groups at the lower side respectively, and a sliding frame connected to the sliding rails in a sliding fit manner is further arranged on the supporting frame; the bottom of the supporting leg is provided with a mounting surface matched with the inner wall of the accommodating cavity.

6. The linear guide rail structure according to claim 1, wherein two oil injection pipes are arranged on each oil injection mechanism and are arranged in parallel at intervals, and communication holes are formed in each of the first sliding groove and the second sliding groove; the oil pump is connected with the two oil injection pipes, and the two oil injection pipes respectively penetrate through the corresponding communication holes to enter the two sides of the circulating oil path of the sliding block.

7. The linear guide rail structure according to claim 1, wherein a supporting column is arranged in the accommodating cavity, the supporting column divides the accommodating cavity into two chambers, and the two first sliding grooves and the two second sliding grooves respectively correspond to the two chambers; the sealing covers are covered above the two chambers, and the sealing covers are connected with the upper ends of the support columns; the four oiling mechanisms are arranged in a group in pairs and are respectively arranged in the two chambers.

8. The linear guide structure of claim 7, wherein the upper end of the chamber is provided with a horizontally arranged support plate, the support plate is provided with two connecting holes, the outer side surfaces of the oil storage pipelines are respectively provided with an external thread section, and the oil storage pipelines pass through the corresponding connecting holes and are fixedly connected to the support plate by nuts.

9. The linear guide structure of claim 7, wherein an oil storage cavity and lubricating oil contained in the oil storage cavity are arranged in the support column, and one end of the oil storage pipeline, which is far away from the oil pump, is communicated with the oil storage cavity.

10. The linear guide structure of claim 1, wherein the linear guide structure further comprises: