Automatic oiling device and method for blades at air outlet of automobile air conditioner

Abstract

The invention relates to the technical field of oiling, in particular to an automatic oiling device and method for automobile air conditioner air outlet blades, which comprises a base, a support frame, a feeding assembly, a plurality of oiling assemblies, a positioning assembly, an oil tank and an oil pump, a moving part is arranged on one side of the support frame, a mounting plate is arranged on the moving part, and a plurality of clamping parts are arranged on the mounting plate. The blade is clamped; the oiling assembly comprises a sliding seat, a sliding baffle, a first elastic part, oiling cotton, an oil supply pipe and a control valve, a groove is formed in the sliding seat, the sliding baffle is arranged on one side of the groove in a sliding mode, the first elastic part is arranged between the sliding baffle and the sliding seat, the oiling cotton is arranged in the groove, the oil supply pipe is communicated with the sliding seat, and the control valve is communicated with the oil supply pipe; the multiple oiling assemblies are distributed on the two sides of the supporting frame, the positioning assembly is used for fixing the multiple sliding seats, the oil pump communicates with the multiple control valves, and the oil tank communicates with the oil pump. And a plurality of rotating shafts can be coated with oil at the same time, so that the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of oiling technology, and in particular to an automatic oiling device and method for automotive air conditioning vent blades. Background Technology

[0002] Automatic oiling of automotive air conditioning vent blades is an automated production process. It is mainly used to precisely and evenly spray or apply lubricating grease to the rotating parts of the blades to ensure smooth opening and closing over a long period of time, reduce friction noise, and extend service life.

[0003] One existing oiling device uses cotton thread for oiling. Its basic principle is to utilize the capillary action of the cotton thread to guide lubricating oil from the oil reservoir to the rotating parts of the air outlet blades, thus achieving lubrication. However, this method has significant drawbacks: due to the soft texture and lack of rigid support of the cotton thread, it is difficult to maintain close and stable contact with all the complex and differently positioned rotating shafts or hinge points during actual operation. Especially when dealing with multi-angle, multi-degree-of-freedom blade assemblies, the cotton thread often only contacts part of the surface, failing to effectively cover hidden or recessed areas, resulting in uneven lubrication or even missed areas. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic oiling device and method for automotive air conditioning vent blades, which aims to improve work efficiency by simultaneously oiling multiple rotating shafts.

[0005] To achieve the above objectives, in a first aspect, the present invention provides an automatic oiling device for automotive air conditioning vent blades, comprising a base, a support frame, a feeding assembly, multiple oiling assemblies, a positioning assembly, an oil tank, and an oil pump. The support frame is disposed on the base. The feeding assembly includes a movable component, a mounting plate, multiple clamping components, a longitudinal correction structure, and a horizontal correction structure. The movable component is disposed on one side of the support frame, the mounting plate is disposed on the movable component, and the multiple clamping components are disposed on the mounting plate for clamping the blades. The longitudinal correction structure corrects the longitudinal position of the blades after clamping, and the horizontal correction structure corrects the lateral position of the blades. The oiling assembly includes a sliding seat, a sliding baffle, a first elastic element, an oiling cotton, an oil supply pipe, and a control valve. The sliding seat is slidably mounted on the support frame and has a groove. The sliding baffle is slidably mounted on one side of the groove. The first elastic element is disposed between the sliding baffle and the sliding seat. The oiling cotton is disposed in the groove. The oil supply pipe is connected to the sliding seat, and the control valve is connected to the oil supply pipe. Multiple oiling assemblies are distributed on both sides of the support frame. The positioning assembly is used to fix multiple sliding seats. The oil pump is connected to multiple control valves, and the oil tank is connected to the oil pump.

[0006] The movable component includes a lateral mover and a longitudinal mover. The lateral mover is disposed on one side of the support frame, the longitudinal mover is disposed on the lateral mover, and the mounting plate is fixed on the longitudinal mover.

[0007] The clamping member includes a clamping plate and a second elastic member, the second elastic member being disposed between the clamping plate and the mounting plate.

[0008] The longitudinal correction structure includes a correction plate, a lifting cylinder, and a return spring. The correction plate is slidably disposed below the mounting plate. The output end of the lifting cylinder is connected to the correction plate. The return spring is disposed between the correction plate and the lifting cylinder.

[0009] The horizontal correction structure includes two triangular inclined plates, a drive screw, and a drive motor. The two triangular inclined plates are slidably disposed on both sides of the correction plate. The drive screw has two opposite threads and is threadedly connected to the two triangular inclined plates. The output end of the drive motor is connected to the drive screw.

[0010] The oiling assembly also includes a sealing gasket, which is fixed to one side of the sliding baffle.

[0011] The oiling assembly further includes a sliding rod, two triangular push rods, and two pressure rods. The sliding rod is slidably disposed below the oiling cotton, the two triangular push rods are slidably disposed on both sides of the sliding rod, and the two pressure rods are rotatably disposed on both sides of the sliding rod. The sliding rod moves downward to push the two triangular push rods to move outward, thereby pushing the two pressure rods to rotate and squeeze the oiling cotton close to the rotating shaft of the blade for oiling.

[0012] The oiling assembly further includes a third elastic element, which is used to push the pressure rod to reset.

[0013] The positioning assembly includes a positioning plate, a pressing cylinder, and a fourth elastic element. The positioning plate is slidably disposed on the support plate, the sliding seat is located between the positioning plate and the support plate, the output end of the pressing cylinder is connected to the positioning plate, and the fourth elastic element is disposed between the positioning plate and the pressing cylinder.

[0014] Secondly, the present invention also provides an automatic oiling method for automotive air conditioning vent blades, using the aforementioned automatic oiling device for automotive air conditioning vent blades.

[0015] This invention discloses an automatic oiling device and method for automotive air conditioning vent blades. A feeding assembly is mounted on one side of a support frame for automatically gripping and precisely positioning the vent blades to be oiled. A moving component (such as a linear module or servo slide) can move smoothly along a preset trajectory, driving a mounting plate on it to make precise displacements. The mounting plate integrates multiple clamping components (such as pneumatic grippers or elastic clamps) capable of simultaneously clamping multiple blades, improving production cycle time. After clamping, a longitudinal correction structure, using sensors and a fine-tuning mechanism, calibrates the blade's position in the height direction, ensuring its rotation axis is at the predetermined oiling height. A horizontal correction structure uses guide blocks, limit pins, or a visual feedback system to compensate for positional deviations in the left and right directions, thereby ensuring that each blade is in a completely consistent posture and position when entering the oiling station.

[0016] The oiling assembly is the core actuator of this device. Multiple assemblies are symmetrically distributed on both sides of the support frame to accommodate the complex structure of the air outlet blades with multiple hinge points and rotation axes. The sliding seat can slide along the guide rail on the support frame, facilitating adjustment of the oiling position according to the blade model. The sliding seat has a groove inside to accommodate the oiling cotton with excellent oil absorption properties. A sliding baffle is provided on one side of the groove. This baffle can slide along the groove direction under external force and is connected to the sliding seat via a first elastic element (such as a compression spring). When the blade's rotation axis contacts the baffle, it can press down to more fully connect with the oiling cotton.

[0017] One end of the oil supply pipe connects to the inside of the sliding seat, and the other end connects to the oil pump via a control valve. The control valve can be precisely opened and closed according to program instructions to achieve on-demand quantitative oil supply, avoiding grease waste or overflow. The oil pump draws lubricating oil from the oil tank and delivers it stably to each oiling component through the pipeline system. The device is also equipped with positioning components to temporarily lock or limit multiple sliding seats during the oiling process, preventing oiling position deviation due to vibration or elastic rebound, further improving oiling accuracy and repeatability. The entire system can be linked with a PLC or industrial robot to achieve a fully automated process from loading, calibration, oiling to unloading, significantly improving production efficiency and product quality consistency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of an automatic oiling device for automotive air conditioning vent blades according to the present invention.

[0020] Figure 2 This is a right-side structural diagram of an automatic oiling device for automotive air conditioning vent blades according to the present invention.

[0021] Figure 3 This is a left-side structural diagram of an automatic oiling device for automotive air conditioning vent blades according to the present invention.

[0022] Figure 4 This is a cross-sectional view of the automatic oiling device for automotive air conditioning vent blades according to the present invention, along with the oiling assembly.

[0023] Figure 5 yes Figure 4 A magnified view of detail A.

[0024] Figure 6 This is a cross-sectional view of the automatic oiling device for automotive air conditioning vent blades according to the present invention, along the clamping plate.

[0025] Figure 7 This is a cross-sectional view of an automatic oiling device for automotive air conditioning vent blades according to the present invention.

[0026] Figure 8 yes Figure 7 A magnified view of detail B.

[0027] Base 101, support frame 102, feeding assembly 103, oiling assembly 104, positioning assembly 105, oil tank 106, oil pump 107, moving part 108, mounting plate 109, clamping part 110, longitudinal correction structure 111, horizontal correction structure 112, sliding seat 113, sliding baffle 114, first elastic element 115, oiling cotton 116, oil supply pipe 117, control valve 118, lateral mover 119, longitudinal mover 120, clamping plate 121, second elastic element 122, correction plate 123, lifting cylinder 124, return spring 125, triangular inclined plate 126, drive screw 127, drive motor 128, sealing gasket 129, sliding rod 130, triangular push rod 131, pressure rod 132, third elastic element 133, positioning plate 134, clamping cylinder 135, fourth elastic element 136. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein 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 accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] First Embodiment Please see Figures 1-8 This invention provides an automatic oiling device for automotive air conditioning vent blades, including a base 101, a support frame 102, a feeding assembly 103, multiple oiling assemblies 104, a positioning assembly 105, an oil tank 106, and an oil pump 107. The support frame 102 is mounted on the base 101. The feeding assembly 103 includes a moving part 108, a mounting plate 109, multiple clamping parts 110, a longitudinal correction structure 111, and a horizontal correction structure 112. The moving part 108 is located on one side of the support frame 102, and the mounting plate 109 is located on the moving part 108. The multiple clamping parts 110 are located on the mounting plate 109 and are used to clamp the blades. The longitudinal correction structure 111 corrects the longitudinal position of the clamped blades, and the horizontal correction structure 112 corrects the lateral position of the blades. The oiling assembly 104... The system includes a sliding seat 113, a sliding baffle 114, a first elastic element 115, an oiling cotton 116, an oil supply pipe 117, and a control valve 118. The sliding seat 113 is slidably mounted on the support frame 102 and has a groove. The sliding baffle 114 is slidably mounted on one side of the groove. The first elastic element 115 is disposed between the sliding baffle 114 and the sliding seat 113. The oiling cotton 116 is disposed in the groove. The oil supply pipe 117 is connected to the sliding seat 113, and the control valve 118 is connected to the oil supply pipe 117. Multiple oiling components 104 are distributed on both sides of the support frame 102. A positioning component 105 is used to fix the multiple sliding seats 113. An oil pump 107 is connected to the multiple control valves 118, and an oil tank 106 is connected to the oil pump 107.

[0031] In this embodiment, the support frame 102 is vertically fixed to the base 101, serving as the main frame of the entire device and providing the installation foundation and operating space for each functional module. The feeding component 103 is located on one side of the support frame 102 and is used to automatically grab and accurately position the air outlet blades to be coated. The moving component 108 (such as a linear module or servo slide) can move smoothly along a preset trajectory, driving the mounting plate 109 on it to make precise displacement; the mounting plate 109 integrates multiple clamping components 110 (such as pneumatic grippers or elastic clamps), which can clamp multiple blades at the same time, improving the production cycle; after clamping, the longitudinal correction structure 111 uses sensors in conjunction with a fine-tuning mechanism to calibrate the position of the blades in the height direction, ensuring that their rotation axis is at the predetermined coating height; while the horizontal correction structure 112 uses guide blocks, limit pins or a visual feedback system to compensate for the positional deviation of the blades in the left and right directions, thereby ensuring that each blade is in a completely consistent posture and position when entering the coating station.

[0032] The oiling assembly 104 is the core execution unit of this device. There are multiple assemblies, symmetrically distributed on both sides of the support frame 102, to adapt to the complex structure of the air outlet blades with multiple hinge points and multiple rotation axes. The sliding seat 113 can slide along the guide rail on the support frame 102, which facilitates the adjustment of the oiling position according to the blade model. The sliding seat 113 has a groove inside to accommodate the oiling cotton 116 with excellent oil absorption performance. A sliding baffle 114 is provided on one side of the groove. The baffle can slide along the groove direction under the action of external force and is connected to the sliding seat 113 through a first elastic element 115 (such as a compression spring). When the blade rotation axis contacts, it can press down the baffle to more fully connect with the oiling cotton 116.

[0033] One end of the oil supply pipe 117 is connected to the interior of the sliding seat 113, and the other end is connected to the oil pump 107 via the control valve 118. The control valve 118 can be precisely opened and closed according to program instructions to achieve on-demand quantitative oil supply and avoid grease waste or overflow. The oil pump 107 draws lubricating oil from the oil tank 106 and delivers the grease stably to each oiling component 104 through the pipeline system. The device is also equipped with a positioning component 105, which is used to temporarily lock or limit multiple sliding seats 113 during the oiling process to prevent the oiling position from shifting due to vibration or elastic rebound, further improving the oiling accuracy and repeatability. The entire system can be linked with a PLC or industrial robot to realize a fully automated process from loading, calibration, oiling to unloading, significantly improving production efficiency and product quality consistency.

[0034] The moving part 108 includes a lateral moving part 119 and a longitudinal moving part 120. The lateral moving part 119 is disposed on one side of the support frame 102, and the longitudinal moving part 120 is disposed on the lateral moving part 119. The mounting plate 109 is fixed on the longitudinal moving part 120.

[0035] The lateral mover 119 (e.g., a linear guide rail with a servo motor or electric slide) is fixedly installed on one side of the support frame 102 as a basic motion platform; the longitudinal mover 120 (e.g., a vertically arranged linear module) is installed on the slide of the lateral mover 119, and can move laterally synchronously with it, and independently complete the lifting and lowering actions in the vertical direction; the mounting plate 109 is firmly fixed to the output end of the longitudinal mover 120, so that the entire clamping mechanism can flexibly and accurately adjust its position in three-dimensional space to ensure that the blade is accurately fed into the oiling station.

[0036] The clamping member 110 includes a clamping plate 121 and a second elastic member 122, the second elastic member 122 being disposed between the clamping plate 121 and the mounting plate 109.

[0037] The clamping member 110 is used to reliably grasp and stably hold the air outlet blades. Its structure includes a clamping plate 121 and a second elastic member 122. The clamping plate 121 is usually made of wear-resistant, low-friction engineering plastic or metal with a buffer pad, and directly contacts the blade surface to avoid scratches. The second elastic member 122 (such as a compression spring, rubber pad, or elastic bellows) is disposed between the clamping plate 121 and the mounting plate 109. On the one hand, it provides flexible clamping force to adapt to blades of different thicknesses or slight dimensional deviations, preventing deformation or damage to the parts due to rigid clamping. On the other hand, it can play a buffering and adaptive adjustment role when the blade is not placed in the correct position, improving the fault tolerance and stability of the clamping.

[0038] The longitudinal correction structure 111 includes a correction plate 123, a lifting cylinder 124, and a return spring 125. The correction plate 123 is slidably disposed below the mounting plate 109. The output end of the lifting cylinder 124 is connected to the correction plate 123. The return spring 125 is disposed between the correction plate 123 and the lifting cylinder 124.

[0039] The longitudinal correction structure 111 is used to fine-tune and align the blade's position in the height direction (i.e., the Z-axis direction) after clamping. This structure includes a correction plate 123, a lifting cylinder 124, and a return spring 125. The correction plate 123 is slidably mounted below the mounting plate 109 via a slide rail or guide post, and its upper surface has a positioning surface that matches the bottom contour of the blade. The piston rod output end of the lifting cylinder 124 is fixedly connected to the correction plate 123, and is driven upwards by air pressure to precisely push the bottom of the blade to a preset height reference surface. The return spring 125 is sleeved between the cylinder body of the lifting cylinder 124 and the correction plate 123, providing auxiliary return force when the cylinder retracts, ensuring that the correction action is fast, smooth, and impact-free, effectively eliminating longitudinal offset caused by feeding errors or gravity sagging.

[0040] The horizontal correction structure 112 includes two triangular inclined plates 126, a drive screw 127, and a drive motor 128. The two triangular inclined plates 126 are slidably disposed on both sides of the correction plate 123. The drive screw 127 has two opposite threads and is threadedly connected to the two triangular inclined plates 126. The output end of the drive motor 128 is connected to the drive screw 127.

[0041] The horizontal alignment structure 112 is used to center and align the blade in the left-right direction (i.e., the X-axis direction), ensuring that its rotation axis is strictly aligned with the oiling assembly 104. This structure includes two symmetrically arranged triangular inclined plates 126, a drive screw 127, and a drive motor 128. The two triangular inclined plates 126 are slidably disposed on the left and right sides of the alignment plate 123, respectively, with their inner surfaces being inclined guide surfaces that can contact the edges of the blade. The drive screw 127 horizontally spans between the two triangular inclined plates 126, and its two ends are machined with oppositely helical threads (i.e., left-hand and right-hand threads), respectively engaging with the threaded holes of the two triangular inclined plates 126. The output shaft of the drive motor 128 is connected to one end of the drive screw 127. When the drive motor 128 rotates in both directions, the drive screw 127 drives the two triangular inclined plates 126 to move synchronously towards or away from each other, utilizing the wedge effect of the inclined surfaces to automatically center and clamp the blade, achieving high-precision horizontal positioning. This structure not only has high calibration efficiency and good repeatability, but also can complete self-centering operation without complex sensors, which significantly improves the automation level and process reliability of the whole device.

[0042] The oiling assembly 104 also includes a sealing gasket 129, which is fixed to one side of the sliding baffle 114.

[0043] The oiling assembly 104 also includes a sealing gasket 129, which is made of oil-resistant rubber or silicone material and is firmly fixed to the side of the sliding baffle 114 facing the oiling cotton 116. Its function is to prevent lubricating oil from leaking from the gap between the sliding baffle 114 and the sliding seat 113, and to ensure that the grease is released in a controlled manner only through the oiling cotton 116.

[0044] The oiling assembly 104 further includes a sliding rod 130, two triangular push rods 131, and two pressure rods 132. The sliding rod 130 is slidably disposed below the oiling cotton 116, the two triangular push rods 131 are slidably disposed on both sides of the sliding rod 130, and the two pressure rods 132 are rotatably disposed on both sides of the sliding rod 130. The sliding rod 130 moves downward to push the two triangular push rods 131 to move outward to push the two pressure rods 132 to rotate and squeeze the oiling cotton 116 near the blade shaft for oiling.

[0045] The sliding rod 130 is horizontally positioned directly below the oiled cotton 116 and can slide vertically inside the sliding seat 113. Two triangular push rods 131 are symmetrically arranged on its left and right sides. The inner end face of each triangular push rod 131 is a bevel structure, which cooperates with the corresponding bevel at the bottom of the sliding rod 130. Two pressure rods 132 are rotatably mounted on both sides of the sliding seat 113 via a pivot, with their upper ends extending to the outside of the oiled cotton 116, for directly or indirectly applying pressure to the oiled cotton 116.

[0046] When the device enters the oiling stage, the downward-moving shaft pushes the sliding rod 130 downward. During the downward movement of the sliding rod 130, the inclined structures on both sides simultaneously compress the two triangular push rods 131, forcing them to slide outward in the horizontal direction. Since the outer ends of the triangular push rods 131 contact the middle or lower part of the pressure rods 132, their outward movement is converted into a thrust on the pressure rods 132, causing the two pressure rods 132 to rotate inward around their shafts. The upper ends of the pressure rods 132 then move towards the center, thereby applying a clamping force to the oiled cotton 116 from both sides, causing it to deform radially and tightly wrap around the shaft surface of the air outlet blades. This active clamping mechanism significantly enhances the contact pressure and adhesion area between the oiled cotton 116 and the complex geometric shaft.

[0047] The oiling assembly 104 also includes a third elastic element 133, which is used to push the pressure rod 132 to reset.

[0048] The third elastic element 133 is connected at one end to the pressure rod 132 and at the other end to the sliding seat 113 or mounting bracket. It stores elastic potential energy when the pressure rod 132 is pushed and rotated. Once the sliding rod 130 retracts and the external force is released, the third elastic element 133 releases its energy, driving the pressure rod 132 to rotate in the opposite direction back to its initial open position. Simultaneously, it causes the triangular push rod 131 to retract and the sliding rod 130 to move upward, completing the automatic reset of the entire oiling execution unit. This reset mechanism not only ensures the continuity of the cyclic operation but also avoids interference or damage to the blades caused by the pressure rod 132 remaining stationary.

[0049] The positioning assembly 105 includes a positioning plate 134, a clamping cylinder 135, and a fourth elastic element 136. The positioning plate 134 is slidably disposed on the support plate, and the sliding seat 113 is located between the positioning plate 134 and the support plate. The output end of the clamping cylinder 135 is connected to the positioning plate 134, and the fourth elastic element 136 is disposed between the positioning plate 134 and the clamping cylinder 135.

[0050] The positioning plate 134 is made of a high-rigidity metal material (such as aluminum alloy or stainless steel), and its overall shape is long or segmented. It is slidably mounted in the inner guide rail or guide groove of the support frame 102 (or support plate), and can slide smoothly along the direction perpendicular to the movement of the sliding seat 113 (usually horizontal). After the multiple sliding seats 113 have been positioned, they are precisely arranged in the gap between the positioning plate 134 and the support plate, so that the positioning plate 134 can apply a uniform constraint force to all the sliding seats 113 from the outside when it is pressed, thereby firmly fixing them in the predetermined oiling position.

[0051] The clamping cylinder 135 serves as a driving element, with its cylinder body fixedly mounted on the outside of the support frame 102. Its output end (piston rod) is rigidly connected to one end of the positioning plate 134. When the system enters the oiling station, the clamping cylinder 135 is activated by air, pushing the positioning plate 134 towards the support plate until its inner side tightly abuts against the outer wall of each sliding seat 113, achieving synchronous clamping and positioning.

[0052] To further optimize the smoothness and reliability of the clamping process, the positioning assembly 105 is also equipped with a fourth elastic element 136 (usually a compression spring or disc spring assembly), one end of which abuts against the positioning plate 134, and the other end is connected to the cylinder body or fixed bracket of the clamping cylinder 135. The fourth elastic element 136 is moderately compressed during the extension of the clamping cylinder 135, serving to buffer impacts, absorb assembly tolerances, and compensate for thermal deformation. Simultaneously, when the clamping cylinder 135 retracts and resets, the fourth elastic element 136 releases its stored elastic potential energy, assisting the positioning plate 134 to quickly and smoothly disengage from the sliding seat 113, avoiding jamming caused by cylinder return lag or negative pressure adsorption.

[0053] Second Embodiment The present invention also provides an automatic oiling method for automotive air conditioning vent blades, using the aforementioned automatic oiling device for automotive air conditioning vent blades.

[0054] The automatic oiling method includes the following steps: Operators or upstream automated equipment place the air outlet blades to be coated in the preset feeding area. The moving part 108 is activated, driving the mounting plate 109 to the material picking position; multiple clamping parts 110 move synchronously under pneumatic or electric drive, using the flexible clamping force generated by the clamping plate 121 in conjunction with the second elastic part 122 to stably grip one or more blades, avoiding appearance damage or structural deformation caused by rigid clamping.

[0055] After clamping, the longitudinal correction structure 111 and the horizontal correction structure 112 work together to perform high-precision spatial positioning of the blades. The lifting cylinder 124 drives the correction plate 123 to rise, and with the assistance of the return spring 125, the bottom of the blades is lifted to a uniform height reference plane, completing the longitudinal (Z-axis) correction. Simultaneously, the drive motor 128 drives the drive screw 127 with bidirectional threads to rotate, causing the two triangular inclined plates 126 to move synchronously towards each other. Utilizing their inclined guide surfaces, a centering force is applied to the left and right edges of the blades, achieving horizontal (X-axis) self-centering correction. Through this dual correction, the rotation axes of all blades are precisely aligned with the oiling station, laying the foundation for subsequent uniform oiling.

[0056] Based on the blade type and the distribution of oiling points, the control system drives each oiling assembly 104 to slide along the support frame 102 to the corresponding rotating shaft position. Subsequently, the positioning assembly 105 operates: the clamping cylinder 135 extends, pushing the positioning plate 134 to clamp multiple sliding seats 113, and the fourth elastic element 136 provides buffering and pre-tightening force to ensure that all oiling assemblies 104 remain absolutely stationary during the oiling process, preventing oiling deviation due to vibration or elastic rebound.

[0057] Oil pump 107 starts, drawing lubricating oil from oil tank 106 and delivering it through pipelines to control valves 118 of each oiling assembly 104. Control valves 118 open according to a preset program, and lubricating oil is injected into the sliding seat 113 via oil supply pipe 117, where it is absorbed by the oiling cotton 116. Simultaneously, the blade shaft moves downwards, pushing sliding rod 130 downwards, which in turn pushes triangular push rod 131 outwards, driving the pressure rods 132 on both sides to rotate inwards, squeezing the oiling cotton 116 from both sides to tightly cover the surface of the blade shaft. During this process, the first elastic element 115 and sealing gasket 129 work together to ensure that the oiling cotton 116 is subjected to uniform force and has a good seal, with grease being released controllably only through the contact surface, achieving precise and leak-free lubrication.

[0058] After oiling is completed, control valve 118 closes, and oil pump 107 stops supplying oil. The third elastic element 133 drives pressure rod 132 to automatically reset, releasing the oiled cotton 116. Sliding rod 130 rises, triangular push rod 131 retracts, and oiling assembly 104 returns to its initial state. Positioning assembly 105 releases, clamping cylinder 135 retracts, and positioning plate 134 returns to its original position with the assistance of fourth elastic element 136. Subsequently, moving part 108 moves mounting plate 109 holding the oiled blade to the unloading station, clamping part 110 releases, and unloading is completed. The entire process can seamlessly connect to the next cycle, supporting continuous and unmanned production.

[0059] This automatic oiling method not only overcomes the defects of traditional cotton thread oiling such as poor contact, uneven lubrication, and low efficiency, but also achieves high coverage and high consistency lubrication for complex air outlet blades through multi-dimensional correction, active clamping, quantitative oil supply and elastic reset mechanisms.

[0060] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An automatic oiling device for automotive air conditioning vent blades, characterized in that, The device includes a base, a support frame, a feeding assembly, multiple oiling assemblies, a positioning assembly, an oil tank, and an oil pump. The support frame is mounted on the base. The feeding assembly includes a moving part, a mounting plate, multiple clamping parts, a longitudinal correction structure, and a horizontal correction structure. The moving part is located on one side of the support frame, the mounting plate is located on the moving part, and the multiple clamping parts are located on the mounting plate for clamping blades. The longitudinal correction structure corrects the longitudinal position of the blades after clamping, and the horizontal correction structure corrects the lateral position of the blades. The oiling assembly includes a sliding seat, a sliding baffle, a first elastic element, an oiling cotton, an oil supply pipe, and a control valve. The sliding seat is slidably mounted on the support frame and has a groove. The sliding baffle is slidably mounted on one side of the groove. The first elastic element is disposed between the sliding baffle and the sliding seat. The oiling cotton is disposed in the groove. The oil supply pipe is connected to the sliding seat, and the control valve is connected to the oil supply pipe. Multiple oiling assemblies are distributed on both sides of the support frame. The positioning assembly is used to fix multiple sliding seats. The oil pump is connected to multiple control valves, and the oil tank is connected to the oil pump.

2. The automatic oiling device for automotive air conditioning vent blades as described in claim 1, characterized in that, The moving part includes a lateral mover and a longitudinal mover. The lateral mover is disposed on one side of the support frame, and the longitudinal mover is disposed on the lateral mover. The mounting plate is fixed on the longitudinal mover.

3. The automatic oiling device for automotive air conditioning vent blades as described in claim 2, characterized in that, The clamping member includes a clamping plate and a second elastic member, the second elastic member being disposed between the clamping plate and the mounting plate.

4. The automatic oiling device for automotive air conditioning vent blades as described in claim 3, characterized in that, The longitudinal correction structure includes a correction plate, a lifting cylinder, and a return spring. The correction plate is slidably disposed below the mounting plate. The output end of the lifting cylinder is connected to the correction plate. The return spring is disposed between the correction plate and the lifting cylinder.

5. The automatic oiling device for automotive air conditioning vent blades as described in claim 4, characterized in that, The horizontal correction structure includes two triangular inclined plates, a drive screw, and a drive motor. The two triangular inclined plates are slidably disposed on both sides of the correction plate. The drive screw has two opposite threads and is threadedly connected to the two triangular inclined plates. The output end of the drive motor is connected to the drive screw.

6. The automatic oiling device for automotive air conditioning vent blades as described in claim 5, characterized in that, The oiling assembly also includes a sealing gasket, which is fixed to one side of the sliding baffle.

7. The automatic oiling device for automotive air conditioning vent blades as described in claim 6, characterized in that, The oiling assembly also includes a sliding rod, two triangular push rods, and two pressure rods. The sliding rod is slidably disposed below the oiling cotton, the two triangular push rods are slidably disposed on both sides of the sliding rod, and the two pressure rods are rotatably disposed on both sides of the sliding rod. The sliding rod moves downward to push the two triangular push rods to move outward, thereby pushing the two pressure rods to rotate and squeeze the oiling cotton close to the rotating shaft of the blade for oiling.

8. The automatic oiling device for automotive air conditioning vent blades as described in claim 7, characterized in that, The oiling assembly also includes a third elastic element, which is used to push the pressure rod to reset.

9. An automatic oiling device for automotive air conditioning vent blades as described in claim 8, characterized in that, The positioning assembly includes a positioning plate, a clamping cylinder, and a fourth elastic element. The positioning plate is slidably disposed on the support plate, the sliding seat is located between the positioning plate and the support plate, the output end of the clamping cylinder is connected to the positioning plate, and the fourth elastic element is disposed between the positioning plate and the clamping cylinder.

10. An automatic oiling method for automotive air conditioning vent blades, characterized in that, An automatic oiling device for automotive air conditioning vent blades as described in any one of claims 1 to 9.

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