Centrifugal oiling device

Abstract

The invention discloses a centrifugal oiling device, which relates to the technical field of grease oiling, and comprises a machine base, on which a feeding and conveying device, a material grabbing mechanism, an oiling mechanism, an oil replenishing mechanism and a material discharging mechanism are arranged. The feeding and conveying device is used to convey the workpiece to the material grabbing mechanism, and a positioning and clamping mechanism is arranged on the material grabbing mechanism. The oiling mechanism is used to insert into the workpiece and apply the lubricating grease to the inside of the workpiece by the centrifugal force generated by rotation. The invention conveys the workpiece by the feeding and conveying device, and the material grabbing mechanism grabs the workpiece to the positioning and clamping mechanism for fixing, and then the oiling mechanism extends into the inside of the workpiece and throws out the lubricating grease in the oiling mechanism by rotation, so that the quantitatively input lubricating grease is evenly applied to the inner wall of the workpiece, which ensures both the coating efficiency and the uniformity of the lubricating grease coating, thereby ensuring the coating effect and avoiding the waste of the lubricating grease, thereby reducing the production cost.

Description

Technical Field

[0001] The invention relates to the technical field of grease oiling, in particular to a centrifugal oiling device. Background Art

[0002] Lubricating grease refers to a type of object used to lubricate machine parts. It is divided into two types: liquid and solid. Its function is to reduce friction and wear between machine parts and reduce corrosion. When lubricating two parts that fit together, liquid lubricating grease is generally applied to improve friction conditions and thus extend service life.

[0003] In the prior art, when applying grease between two mutually fitted parts, it is generally done manually by pressing the oil out or applying it with a sponge, because it is difficult to do so. However, this operation method not only makes the grease output rate uncontrollable, resulting in an unsatisfactory coating effect, but also leads to a waste of grease, resulting in high production costs. At the same time, the efficiency of manual grease application is also low. Summary of the invention

[0004] The object of the present invention is to provide a centrifugal oil coating device, which solves the problem of low grease yield during manual grease coating, resulting in high production cost and low coating efficiency.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] The centrifugal oiling device comprises a machine base, on which a feeding and conveying device, a grasping mechanism, an oiling mechanism, an oil replenishing mechanism and a discharging mechanism are arranged. The feeding and conveying device is used to convey the workpiece to the grasping mechanism, the grasping mechanism is provided with a positioning and clamping mechanism, and the positioning and clamping mechanism is used to clamp and fix the workpiece grasped by the grasping mechanism, the oiling mechanism is used to be inserted into the workpiece and apply lubricating grease to the inside of the workpiece through the centrifugal force generated by rotation, the oil replenishing mechanism is used to quantitatively replenish lubricating grease into the oiling mechanism, and the discharging mechanism unloads the workpiece after the grease coating is completed.

[0007] As a preferred solution of the present invention, the oiling mechanism includes a frame arranged on a machine base, a horizontal motion device is arranged on the frame, and the motion direction of the horizontal motion device is parallel to the conveying direction of the feed conveying device, a vertical motion device is arranged on the horizontal motion device, and the vertical motion device moves in a direction perpendicular to the horizontal plane, a rotating device is arranged on the vertical motion device, an oil outlet device is arranged on the rotating device, and the oil outlet device is used to temporarily store the lubricating grease replenished by the oil replenishing mechanism, and apply the lubricating grease to the inside of the workpiece during rotation.

[0008] As a preferred solution of the present invention, the oil outlet device includes a rotating shaft fixedly connected to the rotating device, an oil nozzle with a hollow interior is provided at the bottom of the rotating shaft, a plurality of oil holes for lubricating grease to pass through are provided on the circumference of the oil nozzle, an oil supply port is provided at the bottom of the oil nozzle, and the oil replenishing mechanism replenishes lubricating grease into the oil nozzle through the oil supply port.

[0009] As a preferred solution of the present invention, a plurality of notches connected to the interior of the oil nozzle are provided on the circumferential side of the oil nozzle, and the bottom of each notch is inclined. A scraper is slidably connected in each notch, and the two ends of the scraper are respectively located inside and outside the oil nozzle. A limit plate for abutting against the inner wall of the oil nozzle is provided on the end of the scraper located inside the oil nozzle.

[0010] As a preferred solution of the present invention, the scraper includes a slide plate slidably connected in the notch, a spring sheet is provided at one end of the slide plate located outside the oil nozzle, a limiting protrusion is provided at the bottom of the slide plate, and a limiting groove slidably connected to the limiting protrusion is provided on the inclined inner bottom of the notch.

[0011] As a preferred solution of the present invention, a slot is provided at the inner top of the notch, a baffle is slidably and sealingly connected in the slot, the bottom of the baffle abuts against the top of the slide, and the baffle is slidably and sealingly connected to the inner wall of the notch.

[0012] As a preferred solution of the present invention, a circular arc transition is provided at the connection between the oil hole and the inside of the oil nozzle.

[0013] As a preferred solution of the present invention, the grabbing mechanism includes a bracket arranged on a machine base, the bracket is provided with a linear motion mechanism moving in a horizontal direction, the linear motion mechanism is provided with a lifting device moving in a vertical direction, and a clamping structure for clamping the workpiece is provided at the bottom of the lifting device.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention conveys the workpiece through a feeding and conveying device, and a grabbing mechanism grabs the workpiece to a positioning and clamping mechanism for fixing. Then, an oiling mechanism extends into the interior of the workpiece and throws out the lubricating grease inside the oiling mechanism by rotation, so that the quantitatively input lubricating grease is evenly coated on the inner wall of the workpiece, which ensures both the coating efficiency and the uniformity of the lubricating grease coating, thereby ensuring the coating effect and avoiding the waste of lubricating grease, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the present invention or the technical solution in the prior art, the following briefly introduces the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 An overall structural schematic diagram of a centrifugal oil coating device is provided for an embodiment of the present invention;

[0018] Figure 2 A partial structural schematic diagram of a centrifugal oil coating device from a first perspective is provided for an embodiment of the present invention;

[0019] Figure 3 A partial structural schematic diagram of a centrifugal oil coating device from a second perspective is provided for an embodiment of the present invention;

[0020] Figure 4 An overall structural schematic diagram of an oiling mechanism is provided for an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a nozzle is provided for an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of a side cross-sectional structure of a nozzle is provided for an embodiment of the present invention;

[0023] Figure 7 Provided for embodiments of the present invention Figure 6 An enlarged schematic diagram of the structure of part A is shown in FIG.

[0024] The numbers in the figure represent the following:

[0025] 1. Machine base; 2. Feeding and conveying device; 3. Grabbing mechanism; 4. Oiling mechanism; 5. Oiling mechanism; 6. Positioning and clamping mechanism; 7. Discharging mechanism;

[0026] 301, bracket; 302, linear motion mechanism; 303, lifting device; 304, clamping structure; 401, frame; 402, horizontal motion device; 403, vertical motion device; 404, rotating device; 405, oil outlet device; 406, rotating shaft; 407, oil nozzle; 408, oil hole; 409, oil supply port; 410, notch; 411, scraper; 412, limit plate; 413, slide plate; 414, spring piece; 415, limit protrusion; 416, limit groove; 417, slot; 418, baffle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 7 As shown, the present invention provides a centrifugal oiling device, including a machine base 1, on which are arranged a feeding and conveying device 2, a grasping mechanism 3, an oiling mechanism 4, an oil replenishing mechanism 5, and a discharging mechanism 7. The feeding and conveying device 2 is used to convey the workpiece to the grasping mechanism 3, the grasping mechanism 3 is provided with a positioning and clamping mechanism 6, and the positioning and clamping mechanism 6 is used to clamp and fix the workpiece grasped by the grasping mechanism 3, the oiling mechanism 4 is used to be inserted into the workpiece and apply lubricating grease to the inside of the workpiece through the centrifugal force generated by rotation, the oil replenishing mechanism 5 is used to quantitatively replenish lubricating grease into the oiling mechanism 4, and the discharging mechanism 7 unloads the workpiece after the grease coating is completed.

[0029] In actual application of the present application, multiple workpieces (in the present application, two parts that are nested with each other) are conveyed in sequence through the feed conveying device 2. When the workpiece is transported to the grabbing mechanism 3, the grabbing mechanism 3 grabs the corresponding workpiece to the positioning clamping mechanism 6 for fixation, and then resets to grab the next workpiece.

[0030] After the oiling mechanism 4 is replenished with a certain amount of lubricating grease through the oil replenishing mechanism 5, it moves to the top of the workpiece on the positioning clamping mechanism 6, and then is inserted into the interior of the workpiece and rotates. The oiling mechanism 4 throws the lubricating grease inside itself onto the side wall inside the workpiece through rotation. Since the oiling mechanism 4 rotates and the lubricating grease can be replenished in a certain amount, the thrown lubricating grease will be evenly coated on the inner wall of the workpiece, thereby ensuring the uniformity of the lubricating grease coating, improving the efficiency of the lubricating grease coating, and avoiding the waste of the lubricating grease.

[0031] After the workpiece is coated with grease, the positioning clamping mechanism 6 releases the workpiece to the discharge mechanism 7, and the workpiece is transported to the external designated area through the discharge mechanism 7. At the same time, the oiling mechanism 4 moves to the oil replenishing mechanism 5 to replenish the grease so that the next workpiece can be coated with grease.

[0032] In this embodiment, the rotation speed of the oil coating mechanism 4 when coating the lubricating grease is greater than 30,000 revolutions per minute, which not only ensures the uniformity of the lubricating grease coating, but also reduces the time required for coating the lubricating grease, thereby improving the coating efficiency.

[0033] In this embodiment, the feed conveying device 2, the oil replenishing mechanism 5, the positioning clamping mechanism 6 and the discharging mechanism 7 are all existing technologies. For example, the feed conveying device 2 can be an existing belt conveyor or chain conveyor, etc., as long as it meets the actual use requirements. The oil replenishing mechanism 5 extracts lubricating grease through an oil pump and injects grease into the oiling mechanism 4 through a metering valve. The positioning clamping mechanism 6 clamps the workpiece from the outer wall of the workpiece through a plurality of clamping blocks, etc. The discharging mechanism 7 can be directly an inclined discharging channel or a conveyor.

[0034] The oiling mechanism 4 includes a frame 401 arranged on the machine base 1, a horizontal motion device 402 is arranged on the frame 401, and the movement direction of the horizontal motion device 402 is parallel to the conveying direction of the feed conveying device 2, a vertical motion device 403 is arranged on the horizontal motion device 402, and the vertical motion device 403 moves in a direction perpendicular to the horizontal plane, a rotating device 404 is arranged on the vertical motion device 403, an oil outlet device 405 is arranged on the rotating device 404, and the oil outlet device 405 is used for temporarily storing the lubricating grease replenished by the oil replenishing mechanism 5, and applying the lubricating grease to the inside of the workpiece during rotation.

[0035] When the oiling mechanism 4 applies grease to the workpiece, the horizontal position and vertical height of the rotating device 404 and the oil outlet device 405 are adjusted by the horizontal motion device 402 and the vertical motion device 403 respectively, thereby adjusting the position of the oil outlet device 405, so that the oil outlet device 405 is inserted into the workpiece and rotated by the drive of the rotating device 404, so that the grease stored inside is thrown out to the inner wall of the workpiece, and the height of the oil outlet device 405 can be adjusted by the vertical motion device 403, so that the oil outlet device 405 can completely cover the inner wall of the workpiece when applying the grease, thereby expanding the coating range of the oil outlet device 405, so that the grease is evenly coated on the inner wall of the workpiece, and the oil outlet device 405 is moved to the oil replenishing mechanism 5 by the drive of the horizontal motion device 402 and the vertical motion device 403 to replenish the grease quantitatively.

[0036] In this embodiment, the horizontal motion device 402 is parallel to the conveying direction of the feed conveying device 2, and in the embodiment of the present application, the conveying direction of the feed conveying device 2 is also parallel to the horizontal plane. Therefore, the movement direction of the horizontal motion device 402 is horizontal so as to adjust itself to the top of the workpiece.

[0037] In this embodiment, the horizontal motion device 402, the vertical motion device 403 and the rotating device 404 are all existing technologies. For example, the horizontal motion device 402 and the vertical motion device 403 can be a driving device such as a motor to drive the screw to drive the seat body to move, and the rotating device 404 can be a device such as a motor to drive the seat body to rotate, etc.

[0038] The oil outlet device 405 includes a rotating shaft 406 fixedly connected to the rotating device 404, and an oil nozzle 407 with a hollow interior is provided at the bottom of the rotating shaft 406. A plurality of oil holes 408 for lubricating grease to pass through are provided on the circumferential side of the oil nozzle 407, and an oil supply port 409 is provided at the bottom of the oil nozzle 407, and the oil replenishing mechanism 5 replenishes lubricating grease into the oil nozzle 407 through the oil supply port 409.

[0039] After the oil nozzle 407 is inserted into the interior of the workpiece, the rotating device 404 is started, and the oil nozzle 407 is driven to rotate synchronously through the rotating shaft 406, so that the lubricating grease in the oil nozzle 407 is thrown out to the inner wall of the workpiece through multiple oil holes 408 under the action of centrifugal force, thereby achieving uniform coating of the lubricating grease on the inner wall of the workpiece.

[0040] The oil supply port 409 is set at the bottom of the oil nozzle 407, and the lubricating grease will not overflow from the oil supply port 409 and the oil hole 408 due to gravity, so that the oil replenishing mechanism 5 directly injects the lubricating grease into the oil nozzle 407 through the oil supply port 409. The lubricating grease is temporarily stored in the oil nozzle 407 and is thrown onto the inner wall of the workpiece by centrifugal force when in use.

[0041] Furthermore, during the process of replenishing the lubricating grease by the oil replenishing mechanism 5, the oil nozzle 407 rotates at a relatively low speed, and the speed of the oil nozzle 407 is controlled to be a value at which the lubricating grease cannot be thrown out through the oil hole 408, so that the lubricating grease is evenly distributed inside the oil nozzle 407 during the process of replenishing the oil nozzle 407.

[0042] A plurality of notches 410 connected to the interior of the oil nozzle 407 are provided on the peripheral side thereof, and the bottom of each notch 410 is inclined. A scraper 411 is slidably connected in each notch 410, and the two ends of the scraper 411 are respectively located inside and outside the oil nozzle 407. A limiting plate 412 is provided on one end of the scraper 411 located inside the oil nozzle 407 for abutting against the inner wall of the oil nozzle 407.

[0043] When the oil nozzle 407 rotates, under the action of centrifugal force, multiple scrapers 411 slide along the bottom of the notch 410, so that the end of the scraper 411 gradually moves away from the oil nozzle 407, and the scraper 411 is restricted from leaving the notch 410 by the limit plate 412. Multiple scrapers 411 rotate synchronously with the oil nozzle 407, that is, the movement trajectory of the end of the scraper 411 is a circle, and the distance between the end of the scraper 411 and the inner wall of the workpiece is kept fixed under the action of centrifugal force, so as to facilitate the scraping and application of thicker lubricating grease on the inner wall of the workpiece, thereby ensuring the uniformity of the lubricating grease coating.

[0044] After the nozzle 407 stops rotating, that is, the rotating device 404 is closed, the scraper 411 slides toward the inside of the nozzle 407 along the inclined inner wall at the bottom of the notch 410 under the action of gravity, thereby automatically resetting to avoid interference of the scraper 411 when the nozzle 407 enters the workpiece.

[0045] The scraper 411 includes a slide plate 413 slidably connected in the notch 410, a spring piece 414 is provided at one end of the slide plate 413 located outside the oil nozzle 407, a limiting protrusion 415 is provided at the bottom of the slide plate 413, and a limiting groove 416 slidably connected to the limiting protrusion 415 is opened on the inclined inner bottom of the notch 410.

[0046] The slide plate 413 is used to connect with the notch 410, and the spring piece 414 is used to scrape the lubricating grease. The spring piece 414 is elastic and thin, so that the spring piece 414 is easy to bend and deform when it contacts the lubricating grease, thereby increasing the area of ​​the lubricating grease scraped by the spring piece 414 and improving the coating effect.

[0047] The limiting protrusion 415 cooperates with the limiting groove 416 to limit the sliding distance of the slide plate 413, so as to control the distance between the spring piece 414 and the inner wall of the workpiece, thereby controlling the range of the spring piece 414 to apply lubricating grease.

[0048] Furthermore, a plurality of positioning grooves can be provided at the inner bottom of the limiting groove 416, a plurality of screws are threadedly connected in the positioning grooves, a limiting block is provided on the top of the screw, one end of the screw extends downward to the outside of the oil nozzle 407 or is controlled to rotate by a micro motor, and different screws are rotated to control different limiting blocks to rise into the limiting groove 416, and then the limiting protrusion 415 is abutted against the limiting protrusion 415 to control the sliding distance of the slide plate 413, thereby realizing the coating of lubricating grease on the inner walls of different sizes inside different workpieces, thereby improving the scope of application.

[0049] A slot 417 is formed at the inner top of the notch 410 , and a baffle 418 is slidably and sealingly connected in the slot 417 . The bottom of the baffle 418 abuts against the top of the slide plate 413 , and the baffle 418 is slidably and sealingly connected to the inner wall of the notch 410 .

[0050] The baffle 418 and the slide plate 413 jointly close the gap 410 to prevent the grease in the oil nozzle 407 from being partially adhered to the slide plate 413 during the process of being thrown out through the gap 410, thereby reducing the waste of grease and ensuring the coating effect of the grease.

[0051] Furthermore, the slot 417 can be connected to the inside of the oil nozzle 407 and extend upward to the top inner wall of the oil nozzle 407, and the top of the baffle 418 also extends to the top inner wall of the oil nozzle 407, preventing the lubricating grease from entering the slot 417 and being unable to be thrown out from the oil hole 408, thereby ensuring the coating effect.

[0052] The connecting part between the oil hole 408 and the inside of the oil nozzle 407 is provided with an arc transition.

[0053] The lubricating grease is more easily gathered in the oil hole 408 under the action of centrifugal force, so that the lubricating grease in the oil nozzle 407 is thrown out to the inside of the workpiece as much as possible to ensure the lubrication effect.

[0054] The material grabbing mechanism 3 includes a bracket 301 arranged on the machine base 1, a linear motion mechanism 302 moving in the horizontal direction is arranged on the bracket 301, a lifting device 303 moving in the vertical direction is arranged on the linear motion mechanism 302, and a clamping structure 304 for clamping the workpiece is arranged at the bottom of the lifting device 303.

[0055] The gripping mechanism 3 adjusts the position of the clamping structure 304 in the horizontal direction and in the vertical direction respectively through the linear motion mechanism 302 and the lifting device 303 , so that the clamping structure 304 can accurately clamp the workpiece on the feeding and conveying device 2 .

[0056] In this embodiment, the linear motion mechanism 302, the lifting device 303 and the clamping structure 304 are all existing technologies, wherein the linear motion mechanism 302 is similar in structure to the horizontal motion device 402, and only the movement direction is different, the lifting device 303 is similar in structure to the vertical motion device 403, and the clamping structure 304 is used to clamp the workpiece from the outer wall or inner wall of the workpiece. In this embodiment, the clamping structure 304 preferably squeezes the workpiece from the inner wall of the workpiece to grasp the workpiece, for example, by controlling multiple clamps to insert into the workpiece and then move in opposite directions to resist the inner wall of the workpiece, thereby achieving the grasping of the workpiece.

[0057] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A centrifugal oiling device, comprising a base (1), characterized in that: The machine base (1) is provided with a feeding and conveying device (2), a gripping mechanism (3), an oiling mechanism (4), an oil replenishing mechanism (5) and a discharging mechanism (7); the feeding and conveying device (2) is used to convey the workpiece to the gripping mechanism (3); the gripping mechanism (3) is provided with a positioning and clamping mechanism (6), and the positioning and clamping mechanism (6) is used to clamp and fix the workpiece gripped by the gripping mechanism (3); the oiling mechanism (4) is used to insert into the workpiece and apply lubricating grease to the inside of the workpiece through the centrifugal force generated by rotation; the oil replenishing mechanism (5) is used to quantitatively replenish lubricating grease into the oiling mechanism (4); and the discharging mechanism (7) is used to discharge the workpiece after the grease coating is completed; The oiling mechanism (4) comprises a frame (401) arranged on a machine base (1); a horizontal motion device (402) is arranged on the frame (401); a vertical motion device (403) is arranged on the horizontal motion device (402); a rotating device (404) is arranged on the vertical motion device (403); and an oil outlet device (405) is arranged on the rotating device (404); The oil outlet device (405) comprises a rotating shaft (406) fixedly connected to the rotating device (404); a hollow oil nozzle (407) is provided at the bottom of the rotating shaft (406); a plurality of oil holes (408) for lubricating grease to pass through are provided on the circumference of the oil nozzle (407); and an oil supply port (409) is provided at the bottom of the oil nozzle (407); A plurality of notches (410) communicating with the inside of the oil nozzle (407) are provided on the circumference of the oil nozzle (407), and the bottom of each notch (410) is inclined. A scraper (411) is slidably connected in each notch (410), and two ends of the scraper (411) are respectively located inside and outside the oil nozzle (407). A limiting plate (412) for abutting against the inner wall of the oil nozzle (407) is provided on one end of the scraper (411) located inside the oil nozzle (407).

2. The centrifugal oiling device according to claim 1, characterized in that: The movement direction of the horizontal motion device (402) is parallel to the conveying direction of the feed conveying device (2), and the vertical motion device (403) moves in a direction perpendicular to the horizontal plane, and the oil outlet device (405) is used to temporarily store the lubricating grease replenished by the oil replenishing mechanism (5) and apply the lubricating grease to the inside of the workpiece during rotation.

3. The centrifugal oiling device according to claim 2, characterized in that: Furthermore, the oil replenishing mechanism (5) replenishes lubricating grease into the oil nozzle (407) through the oil supply port (409).

4. The centrifugal oiling device according to claim 1, characterized in that: The scraper (411) comprises a slide plate (413) slidably connected in the notch (410); a spring sheet (414) is provided at one end of the slide plate (413) located outside the oil nozzle (407); a limiting protrusion (415) is provided at the bottom of the slide plate (413); and a limiting groove (416) slidably connected to the limiting protrusion (415) is provided on the inclined inner bottom of the notch (410).

5. The centrifugal oiling device according to claim 4, characterized in that: A slot (417) is provided at the inner top of the notch (410), a baffle (418) is slidably and sealingly connected inside the slot (417), the bottom of the baffle (418) abuts against the top of the slide plate (413), and the baffle (418) is slidably and sealingly connected to the inner side wall of the notch (410).

6. The centrifugal oiling device according to claim 3, characterized in that: A circular arc transition is provided at the connection point between the oil hole (408) and the inside of the oil nozzle (407).

7. The centrifugal oiling device according to claim 1, characterized in that: The material grabbing mechanism (3) comprises a bracket (301) arranged on a machine base (1); a linear motion mechanism (302) moving in a horizontal direction is arranged on the bracket (301); a lifting device (303) moving in a vertical direction is arranged on the linear motion mechanism (302); and a clamping structure (304) for clamping a workpiece is arranged at the bottom of the lifting device (303).

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