Gear oiling device

Abstract

The application discloses a gear oiling device and relates to the technical field of mechanical automation. The device comprises a mechanical gripper device, a moving tool device and an oiling device. The mechanical gripper device drives a sliding block through a transverse cylinder, and drives a rotatable mechanical gripper to grab and place gears; the moving tool device is used for bearing gears and reduction boxes; the oiling device comprises a rotating shaft driven by a rotating cylinder II and a grease injection head arranged at the top of the rotating shaft, and an oil channel and a plurality of grease injection holes are arranged in the grease injection head. Through cooperation of the rotatable grease injection head and the mechanical gripper, the device realizes automatic operation and uniform lubrication of gear oiling, effectively solves the problems of low efficiency and uneven coating of manual oiling in the prior art, and is particularly suitable for oiling operation in the gear assembly process of the reduction box.

Description

Technical Field

[0001] This application relates to the field of mechanical automation technology, and in particular to a gear oiling device. Background Technology

[0002] In the field of mechanical transmission, gear transmission is one of the most common transmission methods. In order to reduce friction, reduce wear, improve transmission efficiency and extend service life during gear meshing, lubricating oil or grease is usually applied to the tooth surface of the gears before assembly.

[0003] Currently, gear lubrication methods mainly include manual brushing, spray lubrication, and simple immersion lubrication. These methods have many drawbacks: manual brushing is inefficient, the uniformity of lubrication depends entirely on the operator's experience, and it is difficult to ensure that every tooth gap is adequately lubricated; spray lubrication, while achieving a certain degree of automation, often results in oil waste and environmental pollution, and for gears with complex structures, the oil mist cannot completely cover all tooth surfaces; immersion lubrication leads to lubricant waste, and non-meshing surfaces are also lubricated, making it uneconomical. Therefore, a gear lubrication device is provided to solve the above problems. Utility Model Content

[0004] This application provides a gear oiling device that, through the coordinated operation of a mechanical gripper, a moving tool, and a rotating grease injection head, achieves a semi-automated assembly line operation for gears from material handling and oiling to assembly, thus solving the problems mentioned in the background art.

[0005] This application provides a gear oiling device, including a mechanical gripper device, a movable tooling device movably located below the mechanical gripper device, and an oiling device horizontally located beside the mechanical gripper device, characterized in that;

[0006] The mechanical gripper device includes a support frame, a mounting plate horizontally mounted on the top of the support frame, a slide rail fixed on the mounting plate, a sliding block slidably mounted on the slide rail, one side of the sliding block being connected to the output end of a horizontal cylinder fixed to one end of the slide rail, a mounting bracket on the front side of the sliding block, and the bottom of the mounting bracket being movably connected to the gripper mounting frame via a rotating shaft. The mounting bracket is provided with a limit strip, and one end of the rotating shaft is connected to a rotating cylinder for driving the gripper mounting frame to rotate. A gripper cylinder is fixed on the top of the mounting bracket, and the output end of the gripper cylinder passes through a limit sleeve on the gripper mounting frame and is connected to the input end of the mechanical gripper for controlling the clamping and releasing of the mechanical gripper.

[0007] The movable tooling device includes a movable tooling plate, a workpiece support fixed to the top of the movable tooling plate, and a gearbox placed on the top of the movable tooling plate.

[0008] The oiling device includes a base, a rotating shaft mounted on the top of the base via a bearing, and the bottom of the rotating shaft connected to the output end of the second rotary cylinder via a coupling (153). The top of the rotating shaft is provided with a grease injection head, which has multiple channels inside. The rotating shaft has an oil passage communicating with the channels, and the oil passage input end is connected to an oil groove on the outer wall of the rotating shaft. The oil groove is movably and sealed to the output end of an oil pipe connector with a grease injection valve located on the outside of the bearing (154). The grease injection head is a circular groove structure used to accommodate gears, and its inner wall has multiple grease injection holes communicating with the channels. When the mechanical gripper places the gear in the grease injection head and fixes it, the second rotary cylinder drives the grease injection head to rotate, and the lubricating oil is centrifugally thrown out from the grease injection holes to uniformly coat the gear teeth.

[0009] Furthermore, the workpiece support is used to place gears.

[0010] Furthermore, the gearbox is equipped with gear slots for accommodating gears and a worm gear that meshes with the gears for transmission.

[0011] Furthermore, the support frame is equipped with sensors for detecting the position of the moving tooling device.

[0012] Furthermore, the moving tooling device is transported by a conveyor track, which can be a roller conveyor or a belt conveyor.

[0013] Furthermore, the output end of the oil pipe connector is connected to the oil tank via a rotary joint, and the rotary joint is equipped with a sealing gasket.

[0014] Furthermore, the mechanical gripper is a pneumatic gripper with its gripping surface covered with anti-slip material.

[0015] As can be seen from the above technical solutions, this application provides a gear oiling device, including a mechanical gripper device, a moving tooling device, and an oiling device.

[0016] Mechanical gripper device: responsible for gripping, moving, and precisely positioning gears. It uses a transverse cylinder to drive a sliding block to move horizontally on a slide rail, and a rotary cylinder to finely adjust the angle of the gripper, thereby adapting to different positional requirements during oiling and assembly.

[0017] Mobile tooling device: used to carry gears to be oiled and gearboxes to be assembled, and moves under the mechanical gripper via a conveyor rail to realize the transfer between workstations.

[0018] The lubrication device is crucial for even lubrication. It drives the rotating shaft and the top grease injection head to rotate via a rotary cylinder. Lubricating oil enters under pressure from the oil pipe connector, is delivered through the oil passage inside the rotating shaft and the channels inside the injection finger to the multiple injection holes of the grease injection head, and is evenly thrown out by centrifugal force, forming an oil film covering all tooth surfaces of the gear, thus lubricating the gear.

[0019] In summary, the beneficial effects of this application are as follows:

[0020] 1. This application utilizes the cooperation of a rotating grease injection head and a mechanical gripper. During oiling, the gear remains stationary within the groove of the grease injection head, while the high-speed rotation of the grease injection head causes the lubricating oil to be centrifugally ejected, evenly covering all tooth surfaces. Compared with existing technologies, this method offers higher oiling efficiency and less oil waste.

[0021] 2. This application adopts automated assembly line operations from gear picking, transportation to the oiling station, rotation and oiling to final placement into the gearbox, which reduces the labor intensity and technical dependence of workers.

[0022] 3. This application is specifically designed for the oiling and assembly process of gears (gears that need to be installed in a gearbox). It has a relatively simple structure and controllable cost, making it very suitable for integration into existing automated production lines or for use as an independent workstation.

[0023] 4. The grease injection head of this application has a groove structure, which can effectively collect and utilize lubricating oil, avoiding the oil mist diffusion and waste that may be caused by jet lubrication, and making the working environment cleaner.

[0024] 5. The mechanical gripper of this application has a rotation adjustment function. Combined with sensor positioning, it can accurately place the gear into the gear slot of the gearbox and achieve good meshing with the worm gear, thereby improving the assembly quality. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of this application.

[0027] Figure 2 This is a perspective view of this application.

[0028] Figure 3 This is a top view of this application.

[0029] Figure 4 This is a schematic diagram of the oiling device used in this application.

[0030] Figure 5 This is a cross-sectional view of the oiling device of this application, showing the connection between the oil circuit and the grease injection hole, as well as the connection method between the oil pipe connector and the oil tank through a rotary joint.

[0031] Figure 6 This is a schematic diagram of the internal structure of the gearbox in this application.

[0032] Illustration:

[0033] Among them, 1-support frame, 2-mounting plate, 3-slide rail, 4-lateral cylinder, 5-sliding block, 6-mounting frame, 7-grip mounting frame, 8-rotary cylinder one, 9-limiting strip, 10-grip cylinder, 11-mechanical gripper, 12-reduction gearbox, 121-gear groove, 122-worm gear, 13-workpiece support, 14-gear, 15-oiling device, 151-base, 152-rotary cylinder two, 153-coupling, 154-bearing, 155-shaft, 156-oil pipe connector, 157-grease injection head, 158-oil circuit, 159-grease injection hole, 16-moving tooling plate. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0035] From the above technical solutions, it can be seen that:

[0036] Example 1:

[0037] See Figures 1-6 .

[0038] A gear oiling device mainly includes a mechanical gripper device, a moving tooling device, and an oiling device 15.

[0039] Mechanical gripper device: A mounting plate 2 is fixed on the top of the support frame 1. A slide rail 3 is mounted on the mounting plate 2. A sliding block 5 is movably mounted on the slide rail 3. A transverse cylinder 4 is fixed at one end of the slide rail 3. Its output end is connected to the sliding block 5, driving the sliding block 5 to move horizontally along the slide rail 3. A mounting frame 6 is fixed on the front of the sliding block 5. Its bottom is movably connected to the gripper mounting frame 7 through a rotating shaft. A rotating cylinder 8 is connected to one end of the rotating shaft, which can drive the gripper mounting frame 7 and the entire gripper part to swing within a certain angle, so that during the process of placing the gear 14 into the gearbox 12, the gear 14 can be accurately placed into the gear slot 121 of the gearbox 12 and achieve good meshing with the worm gear 122, thereby improving the assembly quality. A gripper cylinder 10 is fixed on the top of the mounting frame 6. Its output end passes through the limiting cylinder on the mounting frame 6 and is connected to the input end of the mechanical gripper 11, controlling the clamping and releasing of the mechanical gripper 11. In this embodiment, the mechanical gripper 11 is preferably a pneumatic gripper, and its gripping surface is covered with anti-slip materials such as rubber to enhance gripping stability.

[0040] Mobile tooling device: The mobile tooling plate 16 is driven by common conveyor tracks (such as roller conveyors, belt conveyors, etc.) and can move below the mechanical gripper 11. The workpiece support 13 and the gearbox 12 are placed on the mobile tooling plate 16. The workpiece support 13 is used to place the gear 14 to be oiled. The gearbox 12 has a gear groove 121 and a worm gear 122 machined inside. The gear groove 121 is used to accommodate the oiled gear 14 and make the gear 14 mesh with the worm gear 122. A sensor (such as a photoelectric sensor or a proximity switch) is also installed on the support frame 1 to detect whether the mobile tooling plate 16 has accurately reached the predetermined station.

[0041] Oiling device: The base 151 is used to support the entire oiling mechanism. The rotating shaft 155 is mounted on the base 151 through the bearing 154. The grease injection head 157 is fixed on the top of the rotating shaft 155. It has a channel inside and is connected to the oil passage 158 inside the rotating shaft 155. The rotary cylinder 152 is connected to the bottom of the rotating shaft 155 through the coupling 153. During the oiling process of the gear 14, it drives the rotating shaft 155 to rotate. The inlet of the oil passage 158 is connected to the annular oil groove on the outer wall of the rotating shaft 155. The oil pipe connector 156 with a grease injection valve is located on the outside of the bearing 154. The output end of the oil pipe connector (156) is connected to the oil groove on the outer wall of the rotating shaft 155 through a rotary joint. The rotary joint is equipped with a rubber sealing ring to ensure that the oil passage does not leak when the rotating shaft rotates and to ensure that the oil passage remains unobstructed when the rotating shaft 155 rotates. The grease injection head 157 is designed as a circular groove structure with multiple small grease injection holes 159 distributed circumferentially on its inner wall. All of these grease injection holes 159 are connected to the internal channels.

[0042] Working principle:

[0043] Loading and gripping: The movable tooling plate 16 moves along the conveyor track. When the workpiece support 13 on it, carrying the gear 14, reaches directly below the mechanical gripper, the sensor sends a signal. The mechanical gripper 11 moves down under the action of the gripper cylinder 10 and grips the gear 14.

[0044] Transfer and oiling: The horizontal cylinder 4 is activated, driving the sliding block 5 and the mechanical gripper 11 to move the gear 14 horizontally to directly above the grease injection head 157 of the oiling device 15. Then the mechanical gripper 11 moves downward, placing the gear 14 into the groove of the grease injection head 157 and clamping and fixing the gear, so that the gear 14 is stationary inside the grease injection head. At this time, the rotary cylinder 152 is activated, driving the grease injection head 157 to rotate at high speed. At the same time, the grease injection valve is opened, so that the lubricating oil is evenly thrown onto all the tooth surfaces of the gear 14 through the oil pipe connector 156, oil passage 158 and channel, and finally from multiple grease injection holes 159 under the action of centrifugal force.

[0045] Retrieval and Assembly: After the grease is applied, the grease injection valve is closed, the rotary cylinder 152 stops rotating, the mechanical gripper 11 removes the gear 14 from the grease injection head 157 and moves it directly above the gear slot 121 of the gearbox 12. The gripper cylinder 10 controls the mechanical gripper 11 to move downward, while the rotary cylinder 8 operates, causing the mechanical gripper 11 and the gear 14 to make slight angle swing adjustments, so that the teeth of the gear 14 are aligned with the worm 122 in the gearbox. Finally, the gear 14 is precisely pressed into the gear slot 121 and forms a correct mesh with the worm 122.

[0046] Flow: After assembly, the mechanical gripper 11 is released and reset, and the moving tooling plate 16 carrying the gearbox 12 of the assembled gear 14 moves to the next station. At the same time, the new gear 14 to be oiled enters and the next cycle begins.

[0047] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0048] Working principle:

[0049] During operation, the moving fixture moves along the conveyor track to below the mechanical gripper. After the sensor detects its position, the mechanical gripper 11 clamps the gear 14 on the workpiece support 13 and moves it to the oiling station, so that the gear 14 is inside the grease injection head 157. At this time, the rotary cylinder 152 starts, driving the grease injection head 157 to rotate. At the same time, the grease injection valve opens, allowing lubricating oil to enter from the oil pipe connector 156 and spray out from the grease injection hole 159 through the oil passage 158 and the channel, uniformly coating the gear tooth surface. After the oiling is completed, the mechanical gripper 11 removes the gear 14 from inside the grease injection head 157 and moves it directly above the gear groove 12. Then, the gripper cylinder 10 works to convey the gear 14 downward. At the same time, the rotary cylinder 8 drives the gripper mounting frame 7 and the mechanical gripper 11 holding the gear 14 to swing back and forth, so that the gear 14 just meshes with the worm gear 122 and is placed in the gear groove 121. The moving fixture then moves to the next station. In the process of rotating the second rotary cylinder 152 to rotate the grease injection head 157 to apply oil to the gear 14, the gear 14 is fixed by the mechanical gripper 11.

[0050] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A gear oiling device, comprising a mechanical gripper, a movable tooling device movably located below the mechanical gripper, and an oiling device (15) horizontally located beside the mechanical gripper, characterized in that... ； The mechanical gripper device includes a support frame (1), a mounting plate (2) is horizontally provided on the top of the support frame (1), a slide rail (3) is fixed on the mounting plate (2), a sliding block (5) is slidably provided on the slide rail (3), one side of the sliding block (5) is connected to the output end of a horizontal cylinder (4) fixed to one end of the slide rail (3), a mounting frame (6) is provided on the front side of the sliding block (5), the bottom of the mounting frame (6) is movably connected to the gripper mounting frame (7) through a rotating shaft, wherein the mounting frame (6) is provided with a limiting strip (9), one end of the rotating shaft is connected to a rotating cylinder (8) for driving the gripper mounting frame (7) to rotate, a gripper cylinder (10) is fixed on the top of the mounting frame (6), the output end of the gripper cylinder (10) passes through the limiting cylinder on the gripper mounting frame (7) and is connected to the input end of the mechanical gripper (11) for controlling the clamping and releasing of the mechanical gripper (11); The movable tooling device includes a movable tooling plate (16), a workpiece support (13) fixed to the top of the movable tooling plate (16), and a reduction gearbox (12) placed on the top of the movable tooling plate (16). The oiling device (15) includes a base (151), on which a rotating shaft (155) is mounted via a bearing (154) at the top. The bottom of the rotating shaft (155) is connected to the output end of a rotary cylinder (152) via a coupling (153). A grease injection head (157) is provided at the top of the rotating shaft (155), and the grease injection head (157) has multiple channels inside. An oil passage (158) communicating with the channels is provided inside the rotating shaft (155). The input end of the oil passage (158) communicates with an oil groove on the outer wall of the rotating shaft (155). The oil groove is movably and sealed to the output end of the oil pipe connector (156) with grease injection valve located on the outside of the bearing (154). The grease injection head (157) is a circular groove structure used to accommodate the gear (14), and its inner wall is provided with multiple grease injection holes (159) communicating with the channel. When the mechanical gripper (11) places the gear (14) in the grease injection head (157) and fixes it, the rotary cylinder (152) drives the grease injection head (157) to rotate, and the lubricating oil is centrifugally thrown out from the grease injection holes (159) to uniformly coat the gear tooth surface.

2. The gear oiling device according to claim 1, characterized in that, The workpiece support (13) is used to place the gear (14).

3. The gear oiling device according to claim 2, characterized in that, The gearbox (12) is provided with a gear slot (121) for accommodating the gear (14) and a worm gear (122) that meshes with the gear (14) for transmission.

4. A gear oiling device according to claim 3, characterized in that, The support frame (1) is equipped with a sensor for detecting the position of the moving tooling device.

5. A gear oiling device according to claim 4, characterized in that, The mobile tooling device is transported by a conveyor track, which is either a roller conveyor or a belt conveyor.

6. The gear oiling device according to claim 1, characterized in that, The output end of the oil pipe connector (156) is connected to the oil tank through a rotary joint, and the rotary joint is provided with a sealing gasket.

7. The gear oiling device according to claim 1, characterized in that, The mechanical gripper (11) is a pneumatic gripper with its gripping surface covered with anti-slip material.

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