Optical rail linear motor module

Abstract

The present invention discloses an optical rail type linear motor module, which belongs to the field of linear motors and includes: a main body mechanism, including a stator component and a mover component arranged to slide relative to each other along a first direction, at least one optical rail being provided on both sides of the stator component along the first direction; a sliding lubrication assembly, including a lubrication mechanism, the lubrication mechanism including an oil tank provided on the mover component, the oil tank being provided with an oil outlet, the oil outlet being provided with an oiling component, the oiling component slidingly cooperating with the optical rail; the oil tank being provided with an inner cavity, one side of the inner cavity being provided with a first piston and a first elastic member for driving the first piston to move toward the inner side of the inner cavity, the end of the inner cavity away from the first piston being connected to the oil outlet. The lubricating oil in the oil tank can flow through the oil outlet to the oiling component, thereby applying lubricating oil to the optical rail. In addition, the lubricating oil in the oil tank has a certain pressure, so regardless of whether the optical rail type linear motor is installed horizontally, vertically or inverted, the oil tank can supply oil to the oiling component.

Description

Technical Field

[0001] The present invention relates to the field of linear motors, and in particular to an optical rail type linear motor module. Background Art

[0002] A sliding mechanism needs to be set between the stator and the mover of the linear motor module. Sliding mechanisms generally include guide rail-slider mechanism and optical rail-pulley mechanism. For working environments with a lot of dust and other impurities, the optical rail-pulley mechanism is usually selected; in order to ensure the operating stability of the linear motor module, the optical rail-pulley mechanism must be well lubricated.

[0003] Currently, there are two main lubrication methods: manual application of lubricant to the optical track, and the use of an oil tank and oil pump to periodically spray the optical track with oil. However, both lubrication methods have drawbacks. Manual application is time-consuming and labor-intensive, resulting in high labor costs. The oil pump spray method, if installed on the moving component, can affect its movement. Installing the oil pump on the stator component requires spraying oil at multiple locations on the optical track to ensure that the stator component's movement path passes through at least one oil injection point during operation, resulting in a complex structure. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an optical rail type linear motor module.

[0005] The optical rail linear motor module according to an embodiment of the present invention includes:

[0006] The main body mechanism includes a stator component and a mover component that are relatively slidably arranged along a first direction, and at least one optical track is respectively provided on both sides of the stator component along the first direction;

[0007] The sliding lubrication assembly includes a lubrication mechanism, which includes an oil tank arranged on the movable component, the oil tank is provided with an oil outlet, the oil outlet is provided with an oiling component, and the oiling component slides with the optical track; the oil tank is provided with an inner cavity, one side of the inner cavity is provided with a first piston and a first elastic member for driving the first piston to move toward the inside of the inner cavity, and the end of the inner cavity away from the first piston is connected to the oil outlet.

[0008] According to the embodiment of the present invention, the optical rail type linear motor module has at least the following technical effects: before the optical rail type linear motor module is used, lubricating oil can be added to the oil tank; during use, the lubricating oil in the oil tank can flow to the oiling component through the oil outlet, and the oiling component can move with the moving sub-component, thereby applying lubricating oil to the optical rail. There is no need to manually apply lubricating oil to the optical rail on a regular basis, which is conducive to reducing labor costs. In addition, there is no need to set up an oil pump, and the structure is relatively simple. In addition, by setting up a first piston and a first elastic member, the first elastic member can make the first piston have a tendency to move toward the inner side of the inner cavity and thus compress the inner cavity, so that the lubricating oil in the oil tank has a certain pressure. Therefore, regardless of whether the optical rail type linear motor is installed horizontally, vertically or inverted, the oil tank can supply oil to the oiling component to keep the optical rail lubricated.

[0009] According to some embodiments of the present invention, the inner cavity is provided with an oil replenishing port, and the oil replenishing port is detachably provided with a cover; and the oil tank is detachably connected to the movable component.

[0010] According to some embodiments of the present invention, the movable component is provided with a slot, the oil tank is inserted into the slot, the orientation of the stator component relative to the movable component is the second direction, the extension direction of the slot is the third direction, and the second direction is perpendicular to the third direction.

[0011] According to some embodiments of the present invention, the oil-coating component is a component made of elastic material, and the inner wall of the slot is threadedly connected to the oil tank.

[0012] According to some embodiments of the present invention, the first elastic member is connected between the mover component and the first piston, the expansion direction of the first elastic member is consistent with the third direction, and the first piston abuts against the end of the first elastic member along the third direction.

[0013] According to some embodiments of the present invention, the oil tank is provided with an oil outlet pipe, the oiling component is provided at one end of the oil outlet pipe close to the optical track, and the end of the oil outlet pipe away from the optical track is connected to the inner cavity; the first piston is sleeved between the inner wall of the oil tank and the oil outlet pipe.

[0014] According to some embodiments of the present invention, a plug is provided in the oil tank, the plug is used to seal the end of the oil outlet pipe away from the optical track, and an adjustment mechanism for moving the plug is connected between the oil tank and the plug.

[0015] According to some embodiments of the present invention, the adjustment mechanism includes a first tube and an adjustment bolt threadedly connected to the first tube, the first tube passes through the tank wall of the oil tank, the plug is sealingly and slidingly connected to the first tube, and the adjustment bolt is connected to the plug.

[0016] According to some embodiments of the present invention, a second elastic member for driving the first piston to move toward the outside of the inner cavity is provided in the oil tank, and the elastic force of the second elastic member is smaller than the elastic force of the first elastic member.

[0017] According to some embodiments of the present invention, the mover component is provided with two pulley components corresponding to each of the optical rails, and the oil tank is provided between the two pulley components.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0020] Figure 1 1 is a schematic diagram of the three-dimensional structure of an optical rail type linear motor module according to an embodiment of the present invention;

[0021] Figure 2 1 is a schematic cross-sectional view of the exploded structure of an optical rail type linear motor module according to an embodiment of the present invention;

[0022] Figure 3 yes Figure 1 A schematic cross-sectional view of the fuel tank;

[0023] In the attached figure:

[0024] 110-stator component; 111-optical rail; 120-moving component; 121-pulley component; 200-oil tank; 201-fixing part; 210-oil outlet pipe; 211-connecting hole; 212-oiling component; 213-plug; 214-first pipe; 215-adjusting bolt; 221-first elastic component; 222-second elastic component; 231-sealing cover; 240-first piston; 300-second mechanism. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the directions or positional relationships indicated, such as up, down, front, back, left, and right, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the meaning of "several" is one or more, the meaning of "more" is more than two, and the meanings of "greater than", "less than", and "exceed" are not inclusive of the number itself, while the meanings of "above", "below", and "within" are inclusive of the number itself. If there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference below Figures 1 to 3 An optical rail type linear motor module according to an embodiment of the present invention is described.

[0029] The optical rail type linear motor module according to the embodiment of the present invention includes a main body mechanism and a sliding lubrication component.

[0030] Reference Figure 1 The main mechanism includes a stator component 110 and a movable component 120. The stator component 110 and the movable component 120 are arranged to slide relative to each other along a first direction. The first direction is the front-back direction. The stator component 110 is in the shape of a strip extending front and back. The movable component 120 is arranged on the upper side of the stator component 110. The left and right sides of the stator component 110 are both provided with optical rails 111 extending front and back. The left and right bottoms of the movable component 120 are both provided with pulley groups. The two pulley groups and the two optical rails are combined to form a structure for making the stator component 110 and the movable component move in a forward and backward direction. The sliding mechanism of the sub-component 120 is slidably connected, and the two optical rails are arranged between the two pulley groups. Each pulley group includes a plurality of pulley components 121 arranged in sequence from front to back. The axial direction of the pulley component 121 is vertical, and the pulley component 121 is rotatably connected to the movable sub-component 120. The two pulley groups are slidably connected to the two optical rails in a one-to-one manner, that is, the pulley component 121 of the pulley group on the left, its outer periphery is in contact with the optical rail on the left, and the pulley component 121 of the pulley group on the right, its outer periphery is in contact with the optical rail on the right.

[0031] Reference Figure 2The sliding lubrication assembly includes two lubrication mechanisms, which are mirror-symmetrically arranged on the left and right sides, and the two lubrication mechanisms are arranged in a one-to-one correspondence with the two optical rails; the lubrication mechanism on the right side is called the first mechanism, and the lubrication mechanism on the left side is called the second mechanism 300. The first mechanism and the second mechanism 300 are mirror-symmetrically arranged. This embodiment specifically describes the first mechanism, and does not repeat the second mechanism 300; the first mechanism includes an oil tank 200 arranged on the movable component 120, the oil tank 200 is provided with an oil outlet, and the oil outlet is provided with an oiling component 212, the oiling component 212 is slidably matched with the optical rail, so that the oiling component 212 can oil the optical rail; the oil tank 200 is provided with an inner cavity, and a first piston 240 and a first elastic member 221 for driving the first piston 240 to move toward the inner side of the inner cavity are provided on one side of the inner cavity, and the end of the inner cavity away from the first piston 240 is connected to the oil outlet.

[0032] Before using the optical rail linear motor module, lubricating oil can be added to the oil tank 200; during use, the lubricating oil in the oil tank 200 can flow to the oiling component 212 through the oil outlet, and the oiling component 212 can move with the moving sub-component 120, thereby applying lubricating oil to the optical rail. There is no need to manually apply lubricating oil to the optical rail on a regular basis, which is beneficial to reducing labor costs. In addition, there is no need to set up an oil pump, and the structure is relatively simple.

[0033] In addition, it is understandable that the optical rail type linear motor module needs to adapt to a variety of postures when used, and may be installed horizontally, vertically, or inverted. In this embodiment, by setting a first piston 240 and a first elastic member 221, the first elastic member 221 can make the first piston 240 move toward the inside of the inner cavity and thus compress the inner cavity, so that the lubricating oil in the oil tank 200 has a certain pressure. Regardless of whether the optical rail type linear motor is installed horizontally, vertically or inverted, the oil tank 200 can supply oil to the oiled component 212 to keep the optical rail lubricated.

[0034] In some embodiments of the present invention, the inner cavity is provided with an oil filling port, which is detachably provided with a cover 231; the oil tank 200 is detachably connected to the movable component 120. By providing the oil filling port and cover 231, when the lubricating oil in the oil tank 200 is consumed, the cover 231 can be removed, the first piston 240 is reset, and lubricating oil is added through the oil filling port. The cover 231 is then installed for continued use.

[0035] Among them, it can be understood that if the oil tank 200 is fixedly arranged on the movable part 120, at least one of the horizontal installation state, vertical installation state and inverted installation state of the optical rail linear motor will cause the oil filling port to not be at the top of the oil tank 200, making it difficult to replenish the lubricating oil to the oil tank 200; in this embodiment, the oil tank 200 is detachable. When the lubricating oil needs to be replenished, the oil tank 200 can be removed from the movable part 120 first, and then the position of the oil tank 200 can be adjusted so that the oil filling port is located at the top of the oil tank 200, and then the operation of adding lubricating oil to the oil tank 200 can be performed, which facilitates the oil replenishment operation.

[0036] In some embodiments of the present invention, the orientation of the stator component 110 relative to the movable component 120 is defined as a second direction, which is vertical. The movable component 120 is provided with a slot, and the extending direction of the slot is defined as a third direction, which is horizontal. The second direction is perpendicular to the third direction, and the oil tank 200 is inserted into the slot in a horizontal direction. It is understood that the bottom of the movable component 120 is connected to the stator component 110, and the top of the movable component 120 is connected to the target object it drives. In this embodiment, by providing the slot, the removal and installation of the oil tank 200 are both performed from the side of the movable component 120. Therefore, the removal and installation of the oil tank 200 will not be blocked by the stator component 110 or the target object, thereby facilitating the removal and installation of the oil tank 200.

[0037] In some embodiments of the present invention, a detachable fixing member 201 is connected between the oil tank 200 and the movable member 120. Taking the first mechanism as an example, a slot is provided on the right side of the movable member 120, and the right end of the slot is open, so that the oil tank 200 can be inserted into the slot from right to left. The left end wall of the slot is provided with an avoidance through-hole, and the oiling member 212 can pass through the avoidance through-hole from right to left and abut against the optical track. The right end of the oil tank 200 protrudes to the right from the left side of the movable member 120. The right end edge of the oil tank 200 is provided with a lug, and the lug is provided with a bolt hole. The fixing member 201 is a bolt. The fixing member 201 passes through the bolt hole from right to left and is threadedly connected to the movable member 120, thereby realizing the detachability of the fixing member 201 and the detachable connection between the oil tank 200 and the movable member 120.

[0038] In some embodiments of the present invention, the oiling member 212 is made of an elastic material, and the inner wall of the slot is threadedly connected to the oil tank 200. The oil tank 200 can be a horizontally arranged cylindrical shape, and the slot is cylindrical. A ridge is provided at the right end of the oil tank 200, making the right end of the oil tank 200 rectangular, so that the ridge can abut the side of the movable member 120 to limit the left limit position of the oil tank 200. During use, the oil tank 200 can be rotated to adjust its lateral position, thereby adjusting the pressure between the oiling member 212 and the optical track to adapt to different sizes of main mechanisms. The oiling member 212 can be made of an elastic material such as a sponge block, so that the oiling member 212 does not hinder the rotation of the oil tank 200. When the oil tank 200 is provided with a lug and a fixing member 201, the oil tank 200 is rotated until the bolt hole of the lug is coaxial with the internal threaded hole of the movable member 120, and then the fixing member 201 is installed.

[0039] In some embodiments of the present invention, the first elastic member 221 is connected between the movable member 120 and the first piston 240. The expansion direction of the first elastic member 221 is aligned with the third direction, and the first piston 240 abuts against the end of the first elastic member 221 along the third direction. Taking the first mechanism as an example, the expansion direction of the first elastic member 221 is horizontal, the left end of the first elastic member 221 is connected to the movable member 120, and the right end of the first elastic member 221 abuts against the first piston 240. In this way, after the oil tank 200 is removed from the movable member 120, the first elastic member 221 separates from the first piston 240 and does not interfere with the return of the first piston 240, facilitating subsequent refilling of the oil tank 200. Furthermore, after the oil tank 200 is inserted into the slot, the first elastic member 221 resumes its abutment against the first piston 240, eliminating the need for additional connection between the first elastic member 221 and the first piston 240, simplifying operation.

[0040] In some embodiments of the present invention, reference Figure 3The oil tank 200 is provided with an oil outlet pipe 210, and the oiling component 212 is arranged at one end of the oil outlet pipe 210 close to the optical track, and the end of the oil outlet pipe 210 away from the optical track is connected to the inner cavity; the first piston 240 is sleeved between the inner wall of the oil tank 200 and the oil outlet pipe 210. The oil outlet pipe 210 is arranged horizontally, and the oiling component 212 is arranged at the left end of the oil outlet pipe 210. The right end of the oil outlet pipe 210 is connected to the right end of the inner cavity. The oil tank 200 is in the shape of a horizontal cylinder. The left side of the oil tank 200 is open. The first piston 240 is placed in the oil tank 200 from left to right. The first elastic member 221 is arranged on the left side of the first piston 240. The first elastic member 221 abuts against the first piston 240 from left to right. The right end of the oil outlet pipe 210 is connected to the right side wall of the oil tank 200. The pipe wall of the right end of the oil outlet pipe 210 is provided with a connecting hole 211 to realize the communication between the right end of the oil outlet pipe 210 and the inside of the oil tank 200. The left end of the oil outlet pipe 210 passes through the first piston 240 to the left and is connected to the oiling component 212. The left end of the oil outlet pipe 210 is provided with a hole for installing the oiling component 212. The mounting seat has a mounting space provided therein, and the oiling component 212 is embedded in the mounting space from left to right, and the oiling component 212 protrudes to the right from the mounting space and slides with the optical rail, and the mounting space is connected to the oil outlet pipe 210, that is, the oil outlet pipe 210 supplies oil to the oiling component 212; in this way, when the first piston 240 moves to the left end of its stroke, the internal space of the oil tank 200 is only occupied by a small part of the oil outlet pipe 210, and the oil tank 200 can retain a larger volume and make full use of the space; when the first piston 240 moves to the right end of its stroke, the first piston 240 is close to the right wall of the oil tank 200, and the remaining volume in the oil tank 200 is small, that is, most of the lubricating oil can be used, and the utilization rate of the lubricating oil is high, which is conducive to reducing the frequency of staff replenishing lubricating oil to the oil tank 200 and saving labor costs.

[0041] The oil filling port can be set on the right side wall of the oil tank 200, so that the movement path of the first piston 240 will not pass through the oil filling port, and the cover 231 can be detachably covered on the oil filling port by means of a threaded connection; a second elastic component 222 can be set on the right side of the first piston 240 in the oil tank 200, and the second elastic component 222 is used to drive the first piston 240 to move toward the outside of the inner cavity. The second elastic component 222 abuts against the first piston 240 from right to left, so that when the driven sub-component 120 removes the oil tank 200, the second elastic component 222 can drive the first piston 240 to move left and reset, without The first piston 240 is additionally reset to facilitate the replenishment of lubricating oil into the oil tank 200; the elastic force of the second elastic member is smaller than the elastic force of the first elastic member 221. When the oil tank 200 is installed on the movable member 120, even if the first piston 240 is located at the right end of its stroke, the rightward force applied by the first elastic member 221 to the first piston 240 is still greater than the leftward force applied by the second elastic member 222 to the first piston 240, so that when the elastic force of the first elastic member 221 and the elastic force of the second elastic member 222 act together on the first piston 240, the first piston 240 tends to move to the right.

[0042] In some embodiments of the present invention, a plug 213 is disposed within the oil tank 200. This plug 213 is used to seal the end of the oil outlet pipe 210 away from the optical track. An adjustment mechanism is connected between the oil tank 200 and the plug 213 to move the plug 213. During use, the adjustment mechanism can be manipulated as needed to move the plug 213 away from or closer to the right end of the oil outlet pipe 210, thereby increasing or decreasing the flow area at the right end of the oil outlet pipe 210. This adjusts the flow rate of lubricating oil within the oil outlet pipe 210, ensuring that the oiling component 212 applies an appropriate amount of lubricating oil to the optical track.

[0043] In some embodiments of the present invention, the adjustment mechanism includes a first tube 214 and an adjustment bolt 215 threadedly connected to the first tube 214. The first tube 214 extends through the wall of the fuel tank 200. The plug 213 is in sealed sliding connection with the first tube 214, and the adjustment bolt 215 is connected to the plug 213. The first tube 214 is disposed on the right wall of the fuel tank 200 and is disposed transversely. The first tube 214 extends through the right wall of the fuel tank 200. The fuel tank 200, the first tube 214, and the oil outlet pipe 210 can be an integral component. The first tube 214 and the oil outlet pipe 210 are coaxial. The plug 213 can block the communication hole 211 when it moves along the first tube 214. The adjustment bolt 215 is disposed transversely and is threadedly connected to the right end of the first tube 214. The left end of the adjustment bolt 215 is connected to the plug 213. When in use, the plug 213 can be moved by rotating the adjusting bolt 215. The structure is simple, and the bolt head of the adjusting bolt 215 is arranged on the outside of the oil tank 200, which is easy to operate.

[0044] In some embodiments of the present invention, the first elastic member 221 and the second elastic member are both springs, which is simple in structure and easy to set up.

[0045] In some embodiments of the present invention, the mover assembly 120 is equipped with two pulley assemblies 121 for each optical track, and the oil tank 200 is positioned between the two pulley assemblies 121. Specifically, the pulley assembly includes two pulley assemblies 121, spaced apart from each other. This fully utilizes the space between the two pulley assemblies 121, resulting in a compact and rational structure. Compared to conventional structures, the mover assembly 120 in this embodiment, with the addition of a sliding lubrication assembly, exhibits minimal changes in shape and volume, facilitating widespread application.

[0046] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An optical rail linear motor module, characterized in that: include: The main body mechanism includes a stator component and a mover component that are relatively slidably arranged along a first direction, the first direction being a front-to-back direction, and at least one optical track is respectively provided on both sides of the stator component along the first direction; The sliding lubrication assembly includes a lubrication mechanism, the lubrication mechanism including an oil tank provided on the movable component, the oil tank having an oil outlet, the oil outlet having an oiling component provided therein, the oiling component slidingly engaged with the optical track; the oil tank having an inner cavity, a first piston and a first elastic member for driving the first piston to move toward the inner side of the inner cavity being provided on one side of the inner cavity, the inner cavity being connected to the oil outlet at one end away from the first piston; The first elastic member is connected between the mover component and the first piston; The oil tank is provided with an oil outlet pipe, the oiling component is provided at one end of the oil outlet pipe close to the optical track, and the end of the oil outlet pipe away from the optical track is in communication with the inner cavity; the first piston is sleeved between the inner wall of the oil tank and the oil outlet pipe; A plug is provided in the oil tank, and the plug is used to block the end of the oil outlet pipe away from the optical track. An adjustment mechanism for moving the plug is connected between the oil tank and the plug.

2. The optical rail linear motor module according to claim 1, characterized in that: The inner cavity is provided with an oil replenishing port, and the oil replenishing port is detachably provided with a sealing cover; the oil tank is detachably connected to the movable component.

3. The optical rail linear motor module according to claim 2, characterized in that: The movable component is provided with a slot, and the oil tank is inserted into the slot. The orientation of the stator component relative to the movable component is the second direction, the second direction is vertical, and the extension direction of the slot is the third direction, the third direction is horizontal, and the second direction is perpendicular to the third direction.

4. The optical rail linear motor module according to claim 3, characterized in that: The oiling component is made of elastic material, and the inner wall of the slot is threadedly connected to the oil tank.

5. The optical rail linear motor module according to claim 3, characterized in that: The expansion direction of the first elastic member is consistent with the third direction, and the first piston abuts against the end of the first elastic member along the third direction.

6. The optical rail linear motor module according to claim 5, characterized in that: The adjustment mechanism includes a first tube and an adjustment bolt threadedly connected to the first tube, the first tube passes through the tank wall of the oil tank, the plug is sealingly and slidingly connected to the first tube, and the adjustment bolt is connected to the plug.

7. The optical rail linear motor module according to claim 5, characterized in that: A second elastic member is provided in the oil tank for driving the first piston to move toward the outside of the inner cavity, and the elastic force of the second elastic member is smaller than the elastic force of the first elastic member.

8. The optical rail linear motor module according to claim 1, characterized in that: The mover component is provided with two pulley components corresponding to each of the optical rails, and the oil tank is provided between the two pulley components.

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