An automatic lubricating method for a guide rail slider and an automatic lubricating structure for a guide rail slider

Abstract

The present invention relates to the technical field of lubrication. The present invention discloses an automatic lubricating method for a guide rail slider and an automatic lubricating structure for a guide rail slider. An automatic lubricating method for a guide rail slider includes the following steps: Step 1: The control system drives the guide rail slider to slide by a servo motor. A lubricating cycle is preset in the control system, and a new cycle starts after lubricating the slider; Step 2: After the slider slides a certain stroke, record the running torque feedback when the servo motor drives the slider to slide; Step 3: When the running torque is higher than the normal range, the control system slides the slider to the oil injection hole for lubrication and recalculates the cycle. Otherwise, lubricate the slider again after reaching the lubricating cycle. It improves the irregularity of manual lubrication in the prior art and is beneficial to improving the accuracy and service life of the slider; In addition, the method disclosed herein also utilizes the torque feedback of the servo motor driving the slider to add lubricating oil to the slider in a timely manner.

Description

Technical Field

[0001] The present invention relates to the technical field of lubrication, and particularly relates to an automatic lubricating method for a guide rail slider and an automatic lubricating structure for a guide rail slider. Background Art

[0002] When applied to a guide rail slider structure, the requirement for moving accuracy is generally high. For example, for the indentation wheel on a corrugated paperboard line slitter, according to the instructions of the program, it needs to move to a specified position to make creases on the paperboard. The indentation wheel is connected to the slider, and the slider moves on the guide rail. The stable and precise performance requirements of the guide rail slider are very high. Whether the slider operates normally directly affects the actual accuracy and quality of the product. Therefore, the daily maintenance and upkeep of the slider cannot be ignored. Currently, the guide rail slider on the corrugated paperboard line slitter uses a traditional lubrication method of manual lubrication. Manual lubrication has inconveniences and irregularities, and many users neglect the maintenance of the machine, which affects the service life of the guide rail slider. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] The present invention provides an automatic lubricating method for a guide rail slider, including the following steps:

[0005] Step 1: The control system drives the guide rail slider to slide with a servo motor. A lubricating cycle is preset in the control system, and after lubricating the slider, a new cycle starts.

[0006] Step 2: After the slider slides a certain stroke, record the operating torque fed back when the servo motor drives the slider to slide.

[0007] Step 3: When the operating torque is higher than the normal range, the control system slides the slider to the oil injection hole for lubrication and recalculates the cycle. Otherwise, lubricate the slider again after reaching the lubricating cycle.

[0008] The beneficial effects of the automatic lubricating method for a guide rail slider of the present invention: The automatic lubricating method for a guide rail slider of the present invention presets a lubricating cycle in the control system and lubricates the slider regularly according to the lubricating cycle, improving the irregularity of manual lubrication in the prior art and being beneficial to improving the accuracy and service life of the slider. In addition, the method of the present disclosure also utilizes the torque feedback of the servo motor driving the slider, compares the fed-back operating torque with the normal range to timely know the loss situation of the lubricating oil when the slider slides, and adds lubricating oil to the slider in time when the lubricating oil loss is excessive, better ensuring that the slider slides under normal lubrication conditions, and better improving the sliding accuracy of the slider and the service life of the slider.

[0009] As some sub - solutions of the above - mentioned technical solution, in step one, the refueling cycle is set by time. In step two, the time is accumulated after refueling and lubricating. In step three, the accumulated time is cleared after refueling.

[0010] As some sub - solutions of the above - mentioned technical solution, the normal range is determined by obtaining the time - torque curves of multiple lubricated sliders.

[0011] As some sub - solutions of the above - mentioned technical solution, in step three: obtain the running torques at multiple time points for comparison, and judge whether the slider is defective according to the time points when the running torque is higher than the normal range. If the slider is defective, replace the slider, then refuel and lubricate again and start a new refueling cycle.

[0012] As some sub - solutions of the above - mentioned technical solution, the first obtained time point is 5 minutes after lubrication.

[0013] As some sub - solutions of the above - mentioned technical solution, the preset refueling cycle is 5 days.

[0014] As some sub - solutions of the above - mentioned technical solution, the refueling cycle is preset according to the running time of the slider driven by the servo motor.

[0015] The present disclosure also provides an automatic refueling structure for a guide rail slider, including:

[0016] A cross beam, with an oil injection hole opened on the cross beam;

[0017] A sliding guide rail, which is arranged on the cross beam, and a countersunk hole is opened on the sliding surface of the sliding guide rail;

[0018] An oil injection joint, which is arranged at the countersunk hole, and the end of the oil injection joint passes through the countersunk hole and is connected to the oil injection hole;

[0019] An oil pipe joint, which is arranged on the cross beam and communicated with the oil injection hole;

[0020] An oil supply device, which is arranged on the cross beam, and the oil supply device is communicated with the oil pipe joint through an oil supply pipe.

[0021] The beneficial effects of the automatic refueling structure for the guide rail slider of the present disclosure: The automatic refueling structure of the present disclosure forms a refueling channel through the oil pipe joint, the oil injection hole and the oil injection joint. When lubricating oil needs to be added to the slider, slide the slider to the position of the oil injection joint and start the oil supply device to achieve fixed - point refueling, which changes the way of manual lubrication in the prior art and makes it more convenient to add lubricating oil. In addition, the oil injection joint passes through the countersunk hole of the sliding guide rail and is connected to the cross beam, which not only forms the refueling channel but also plays a role in fixing the sliding guide rail on the cross beam, and the structure is simple.

[0022] As some sub - solutions of the above - mentioned technical solution, the automatic lubricating structure of the guide rail slider further includes a servo motor and a controller. The servo motor is arranged on the cross - beam, and the servo motor is used to drive the slider to slide. The servo motor and the oil supply device are both signal - connected to the controller.

[0023] As some sub - solutions of the above - mentioned technical solution, the sliding guide rail is arranged in the reverse direction, and the sliding surface is the lower end surface of the guide rail.

[0024] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above - mentioned and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic diagram of an embodiment of a method for automatically lubricating a guide rail slider;

[0027] Figure 2 is a schematic structural diagram of an embodiment of an automatic lubricating structure of a guide rail slider Figure 1 ;

[0028] Figure 3 is a schematic structural diagram of an embodiment of an automatic lubricating structure of a guide rail slider Figure 2 ;

[0029] Figure 4 is Figure 3 a partial enlarged view at X in

[0030] In the drawings: 1 - cross - beam; 3 - sliding guide rail; 31 - countersunk hole; 4 - oil injection joint; 5 - oil pipe joint; 6 - servo motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship involved, such as up, down, front, back, left, right, etc., indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0033] In the description of the present invention, "several" means an indefinite quantity, "multiple" means more than two, "greater than", "less than", "exceeding", etc. are understood not to include the base number, and "above", "below", "within", etc. are understood to include the base number. If "first" and "second" are described, they are only used to distinguish technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features. The "and / or" appearing throughout the text represents three parallel solutions. For example, "A and / or B" represents the solution satisfied by A, the solution satisfied by B, or the solution satisfied by both A and B.

[0034] In the description of the present invention, if there are short sentences containing multiple parallel features, the attributive modifies the closest feature. For example, "B, C provided on A", "E connected to D" means that B is provided on A and E is connected to D, and C is not restricted; however, for attributives indicating the relationship between features, such as "spaced apart" and "annular arrangement", this does not apply. If the attributive is preceded by the word "all", it means that all features in the short sentence are restricted. For example, "B, C, D all provided on A" means that B, C, and D are all provided on A. For a sentence with the subject omitted, the omitted subject is the subject of the previous sentence. That is, "B is provided on A, including C" means that B is provided on A and A includes C.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", and "connected" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] The following Figures 1 to 4 illustrates the embodiments of the present invention.

[0037] Referring to Figure 1 , this embodiment relates to an automatic lubricating method for a guide rail slider, including the following steps:

[0038] Step 1: The control system drives the guide rail slider to slide with a servo motor 6. A lubricating cycle is preset in the control system, and after lubricating the slider, a new cycle starts;

[0039] Step 2: After the slider slides a certain stroke, record the operating torque fed back when the servo motor 6 drives the slider to slide;

[0040] Step 3: When the operating torque is higher than the normal range, the control system slides the slider to the oil injection hole for lubrication and recalculates the cycle. Otherwise, lubricate the slider again after reaching the lubricating cycle.

[0041] Advantages of an automatic lubrication method for a guide rail slider according to the present invention: In the control system of the automatic lubrication method for a guide rail slider according to the present invention, a lubrication period is preset, and the slider is lubricated regularly according to the lubrication period, improving the irregularity of manual lubrication in the prior art, which is beneficial to improving the accuracy and service life of the slider; in addition, the method of the present disclosure also utilizes the torque feedback of the servo motor 6 that drives the slider, compares the feedback operating torque with the normal range to timely obtain the lubricating oil loss situation when the slider slides, and adds lubricating oil to the slider in a timely manner when the lubricating oil loss is excessive, better ensuring that the slider slides under normal lubrication conditions, and better improving the sliding accuracy of the slider and the service life of the slider.

[0042] It can be understood that when the lubrication condition of the slider deteriorates, the sliding resistance of the slider increases, and the operating torque feedback by the servo motor 6 is greater than the normal range.

[0043] In step one, the lubrication period is set by time. In step two, the time is accumulated after lubrication. In step three, the accumulated time is cleared after lubrication. In addition to the loss during the sliding of the slider, the lubricating oil also oxidizes and deteriorates over time. Setting the lubrication period by time comprehensively considers these two characteristics. At the same time, it also has the advantage of simple design.

[0044] Furthermore, the normal range is determined by obtaining the time-torque curves of multiple lubricated sliders. The time-torque curve refers to the curve obtained with time as the abscissa and torque as the ordinate, and its original data is obtained by obtaining the torque values feedback by the servo motor 6 at different time points. The specific way to obtain the time-torque curves of multiple lubricated sliders can be to obtain the time-torque curves of a slider after multiple lubrications, or to obtain the time-torque curves of multiple sliders with the same specifications respectively. Obtaining the time-torque curves of multiple sliders can more accurately reflect the torque feedback by the servo motor 6 at different times after the slider is lubricated. Set the normal range for the torque of the slider sliding at different time points according to the obtained time-torque curves. For example, set the normal range with an average value of the torque of 0-10%.

[0045] Considering that there is a small probability of defects in the quality of the slider, the lifespan of individual sliders may be much smaller than the ideal value. Further, in step three: obtain the operating torques at multiple time points for comparison, and judge whether the slider is defective according to the time points when the operating torque is higher than the normal range. If the slider is defective, replace the slider, re-lubricate it, and start a new lubrication cycle. When there are defects in the quality of the slider, the operating torque of the lubricated slider will be higher than the normal range. Therefore, after lubricating the slider, obtain the operating torques at multiple time points. When the operating torques at multiple times are all higher than the normal range, it can be judged that there is a problem with the sliding of the slider, and the operator is reminded to perform maintenance or replacement operations. After improving the sliding conditions of the slider, enter a new lubrication cycle, and the time accumulated in the control system is cleared. The obtained time points can be set as needed. Of course, in order to obtain the torque feedback by the servo motor 6 at the preset acquisition time points, the servo motor 6 needs to be started at the preset time points to drive the slider to move. If there is a conflict between this time point and the production beat, then use the effective operating torque obtained by the servo motor 6 closest to this time point after this time point as the operating torque at this time point. The effective operating torque refers to the torque obtained when the servo motor 6 normally drives the slider to move excluding the starting state and braking state of the servo motor 6.

[0046] The time points can be set as needed. For example, set the first time point as the moment after lubrication. The interval between time points can also be set as needed, and can be set in an equal-time interval or unequal-time interval manner. Further, the first obtained time point is 5 minutes after lubrication. The first obtained time point is 5 minutes after lubrication. Even if the slider does not slide along the guide rail within 5 minutes after lubrication, under the action of gravity, the lubricating oil can flow to various positions of the guide rail better, and the accuracy of the obtained operating torque is more representative.

[0047] When presetting the lubrication cycle by time, the lubrication cycle can be set according to the actual working conditions. Further, the preset lubrication cycle is 5 days. In this embodiment, setting the lubrication cycle to 5 days can better meet the requirements of high-precision and low-loss operation of the slider guide rail and reduce the number of lubrication times.

[0048] In some other embodiments, preset the lubrication cycle based on the running time of the slider driven by the servo motor 6. Preset the lubrication cycle based on the running time of the slider driven by the servo motor 6, so that within each lubrication cycle, it can basically be ensured that the slider has slid the same distance. The advantage of setting the lubrication cycle in this way is that it focuses on considering the lubricating oil loss caused by the slider sliding in the guide rail, and it is more applicable to the use conditions of sliders and slide rails that move more frequently. For example, set the lubrication cycle as 30 hours when the servo motor 6 drives the slider to run.

[0049] Furthermore, the refueling period is preset according to the distance that the slider slides driven by the servo motor 6. Presetting the refueling period according to the distance that the slider slides driven by the servo motor 6 is equivalent to the number of turns that the servo motor 6 rotates when the servo motor 6 is in a transmission connection state with the slider. Using this method to set the refueling period further excludes the influence of acceleration and braking time.

[0050] Referring to Figures 2 to 4 , the present disclosure also provides an embodiment of an automatic refueling structure for a guide rail slider, including:

[0051] A cross beam 1, with an oil injection hole opened on the cross beam 1;

[0052] A sliding guide rail 3, the sliding guide rail 3 is arranged on the cross beam 1, and a countersunk hole 31 is opened on the sliding surface of the sliding guide rail 3;

[0053] An oil injection joint 4, the oil injection joint 4 is arranged at the countersunk hole 31, and the end of the oil injection joint 4 passes through the countersunk hole 31 and is connected to the oil injection hole; specifically, in this embodiment, the oil injection joint 4 is threadedly connected to the oil injection hole;

[0054] An oil pipe joint 5, the oil pipe joint 5 is arranged on the cross beam 1 and communicates with the oil injection hole;

[0055] An oil supply device, the oil supply device is arranged on the cross beam 1, and the oil supply device communicates with the oil pipe joint 5 through an oil supply pipe.

[0056] The automatic refueling structure of the present disclosure forms a refueling channel through the oil pipe joint 5, the oil injection hole, and the oil injection joint 4. When it is necessary to add lubricating oil to the slider, the slider is slid to the position of the oil injection joint 4 and the oil supply device is started to achieve fixed-point refueling, which changes the way of manually adding lubricating oil in the prior art and makes it more convenient to add lubricating oil; in addition, the oil injection joint 4 passes through the countersunk hole 31 of the sliding guide rail 3 and is connected to the cross beam 1, which not only forms a refueling channel but also plays a role in fixing the sliding guide rail 3 on the cross beam 1, and the structure is simple.

[0057] When it is necessary to refuel the slider of the guide rail, the lubricating oil enters the oil injection hole through the oil supply device and the oil pipe joint 5. The oil injection joint 4 penetrates through the sliding guide rail 3 and extends into the oil injection hole. After the lubricating oil enters the oil injection hole, it flows out from the oil injection joint 4. The lower end of the oil injection joint 4 extends towards the connection surface between the sliding guide rail 3 and the slider, and the lubricating oil is conveyed between the Huaxin aisle cabinet and the slider.

[0058] Further, the automatic lubricating structure for the guide rail slider further includes a servo motor 6 and a controller. The servo motor 6 is arranged on the cross beam 1. The servo motor 6 is used to drive the slider to slide. The servo motor 6 and the oil supply device are both signal-connected to the controller. This lubricating structure is configured with a servo motor 6 and a controller. A preset lubricating cycle is set in the controller. After the lubricating cycle is reached, the controller can drive the slider to slide to the countersunk hole 31 of the sliding guide rail 3 through the servo motor 6 to add lubricating oil. Alternatively, when the controller obtains that the operating torque feedback by the servo motor 6 is higher than the normal range, lubricating oil is added and the cycle is recalculated.

[0059] The sliding guide rail is arranged in an inverted manner, and the sliding surface is the lower end surface of the guide rail. The sliding guide rail is arranged for guiding. When the slider is slidably connected to the sliding guide rail, a groove with an upward-opening cross-sectional shape is formed between the slider and the lower end surface of the sliding guide rail, that is, the sliding surface. After the oil supply power of the oil supply device stops, the lubricating oil hanging on the wall can flow downward into the groove, thereby adhering to the slider and being evenly distributed on the sliding guide rail as the slider slides, which is beneficial to evenly coating the lubricating oil.

[0060] The above has specifically described the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present invention. These equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. An automatic lubricating method for a guide rail slider, characterized in that: The automatic oiling structure of the guide rail slider includes: A cross beam (1) with an oil injection hole formed thereon; A sliding guide rail (3) provided on the cross beam (1), and a counterbore (31) is formed on the sliding surface of the sliding guide rail (3); An oil injection joint (4) provided at the counterbore (31), and the end of the oil injection joint (4) passes through the counterbore (31) and is connected to the oil injection hole; An oil pipe joint (5) provided on the cross beam (1) and communicating with the oil injection hole; An oil supply device provided on the cross beam (1), and the oil supply device is communicated with the oil pipe joint (5) through an oil supply pipe; A servo motor (6) and a controller, the servo motor (6) is provided on the cross beam (1), the servo motor (6) is used to drive the guide rail slider to slide, and the servo motor (6) and the oil supply device are both signal-connected to the controller; The sliding guide rail (3) is arranged in an inverted manner, and the sliding surface of the sliding guide rail (3) is the lower end surface of the sliding guide rail (3); The automatic oiling method for the guide rail slider includes the following steps: Step 1: The control system drives the guide rail slider to slide with the servo motor (6). A refueling cycle is preset in the control system, and after refueling and lubricating the guide rail slider, a new cycle starts; Step 2: After the guide rail slider slides a certain stroke, record the running torque fed back when the servo motor (6) drives the guide rail slider to slide; Step 3: When the running torque is higher than the normal range, the control system drives the guide rail slider to slide to the oil injection hole for refueling and recalculates the cycle. Otherwise, after reaching the refueling cycle, refuel and lubricate the guide rail slider again. The normal range is determined by obtaining the time-torque curves of multiple lubricated guide rail sliders; In Step 1, the refueling cycle is set by time. In Step 2, the time is accumulated after refueling and lubricating. In Step 3, the accumulated time is cleared after refueling; In Step 3: Obtain the running torques at multiple time points for comparison, and judge whether the guide rail slider is defective according to the time points when the running torque is higher than the normal range. If the guide rail slider is defective, replace the guide rail slider, refuel and lubricate it again, and start a new refueling cycle.

2. The automatic lubrication method for a guide rail slider according to claim 1, characterized in that: The first time point among the multiple obtained time points is 5 minutes after lubrication.

3. The automatic lubrication method for a guide rail slider according to claim 1, wherein: The preset refueling cycle is 5 days.

4. The automatic lubrication method for a guide rail slider according to claim 1, wherein: The refueling cycle is preset based on the running time of the servo motor (6) driving the guide rail slider.

Images