Bottom trundle oiling assembly machine
By using the three-axis motion module and automated oiling system of the bottom caster oiling assembly machine, the problems of low efficiency and uneven oiling in traditional manual operation are solved, achieving efficient and uniform oiling and stable installation of casters, and improving the service life and performance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN WISEMAN OPTICAL INSTR
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional caster installation relies on manual operation, which is inefficient, results in unstable tightening torque, poor assembly consistency, uneven lubrication, and affects rotation performance and service life.
The bottom caster oiling assembly machine uses a three-axis motion module to control the tooling components. Combined with a vibrating feeder and a linear vibrator, it realizes automatic sorting and conveying of casters. A quantitative valve is used for automatic oiling. A cylinder controls the three-jaw mechanical head to descend and contact the oil outlet. A rotary motor drives the robot to rotate. A torque sensor monitors the tightening torque to ensure uniform oiling and optimal tightening effect.
It achieves automated and efficient oiling and installation of casters, ensuring uniform lubrication of each caster, avoiding dry friction, and improving assembly consistency and service life.
Smart Images

Figure CN224169151U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of caster assembly technology, and in particular to a bottom caster oiling assembly machine. Background Technology
[0002] In industrial manufacturing and automated assembly, casters are key components widely used in industrial equipment, logistics handling, and furniture manufacturing. Their installation quality directly affects the stability and lifespan of the equipment. Traditional caster installation relies primarily on manual operation, including steps such as removing and placing casters, applying lubricant, and tightening. This is not only inefficient but also easily affected by human factors, leading to unstable tightening torque and poor assembly consistency. Furthermore, manual lubrication is difficult to ensure even distribution, potentially resulting in insufficient lubrication or waste, affecting the caster's rotational performance and lifespan.
[0003] Therefore, we propose a bottom caster oiling assembly machine to solve the existing problems. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a bottom caster oiling assembly machine.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bottom caster oiling assembly machine, comprising a main platform, a feeding assembly, a tooling assembly, and a metering valve. The upper surface of the main platform is provided with a tooling fixture. A gantry frame is longitudinally slidably mounted on the main platform. A translation platform is laterally slidably mounted on the gantry frame. A lifting platform is vertically slidably mounted on the translation platform.
[0006] The feeding assembly is connected to the feed port of the main unit and is used to transport the casters to the feeding position;
[0007] The metering valve is located at a designated position on the main unit, and the opening end of the metering valve is provided with an oil outlet.
[0008] The tooling assembly is mounted on the main unit and is used for clamping, rotating, and installing casters.
[0009] Preferably, the feeding assembly consists of a vibrating feeding plate, a linear vibrator, and a guide rail. The vibrating feeding plate is located on the side of the main unit, the guide rail is located on the vibrating feeding plate, the linear vibrator is located on the lower surface of the guide rail, and the opening of the guide rail is connected to the feed port of the main unit.
[0010] Preferably, the vibrating feeder is used to store and orderly transport the casters, and the straight vibrator causes the casters to be transported in a straight line along the guide rail by vibration. The vibrating feeder and the straight vibrator work together to ensure that the casters are arranged in an orderly manner in the set direction and transported to the feeding position.
[0011] Preferably, the tooling assembly consists of a cylinder, a connecting frame, a rotary motor, a three-jaw mechanical head, and a torque sensor. The connecting frame is mounted on the outer wall of the lifting platform, and the cylinder is mounted on the connecting frame.
[0012] Preferably, the rotary motor is located at the output end of the cylinder, the torque sensor is located at the output end of the rotary motor, and the three-jaw mechanical head is located at the working end of the torque sensor.
[0013] Preferably, the movement of the gantry relative to the main unit, the movement of the translation platform relative to the gantry, and the movement of the lifting platform relative to the translation platform are all driven by servo motors and reducers through gears. The above-mentioned movement actions are used to control the tooling components to perform spatial movement.
[0014] Preferably, the rear end of the main unit is provided with a main control cabinet, and the operation surface of the main unit is provided with control buttons and a main control switch.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] During use, the bottom caster oiling and assembly machine of this utility model involves personnel placing casters in batches into the vibrating feeding tray, then manually placing the chassis on the tooling fixture, connecting to an external power source, and the feeding component working to arrange the casters in an orderly manner according to the set direction and transport them to the feeding position of the main unit.
[0017] Subsequently, the sliding motion of the gantry, translation table, and lifting table constitutes a three-axis motion module, which is used to control the movement of the tooling components.
[0018] At this time, the three-jaw mechanical head is controlled to move to the feeding position to pick up the caster and move to the oiling position, i.e., the oil outlet. The metering valve is connected to the external oiler and the oil is controlled through the metering valve. At this time, the cylinder drives the three-jaw mechanical head to move downward, so that the gripped workpiece contacts the oil outlet. At the same time, the rotary motor works to drive the robot arm to slowly rotate to complete the oiling action of the caster.
[0019] After the oiling is completed, the three-jaw robotic head moves upward and resets. Driven by the three-axis motion module, the three-jaw robotic head grabs the caster and moves it to the tooling fixture. The caster is aligned with the threaded hole of the chassis. Then, the caster and chassis are assembled by the cooperation of the tooling component and the three-axis motion module. The assembly process is to screw in, then screw out, and then screw in again. After completion, the three-jaw robotic arm will pick up the next caster.
[0020] When the tooling assembly is in operation, the three-jaw mechanical head clamps the workpiece, the cylinder controls the lifting and lowering action of the three-jaw mechanical head to adjust the height, the rotary motor drives the three-jaw mechanical head to rotate, and the torque sensor monitors the tightening torque to ensure that the torque reaches the set value and avoids being too tight or too loose, which would affect the assembly quality.
[0021] This invention employs a combination of a vibrating feeding plate and a linear vibrator to achieve automatic sorting and conveying of casters. A three-axis motion module controls the quasi-movement of a three-jaw manipulator in space. A quantitative valve, in conjunction with an automatic oiler, applies a quantitative amount of oil before caster assembly. Simultaneously, a cylinder controls the downward movement of the three-jaw manipulator head, ensuring full contact between the caster and the oil outlet. A rotary motor drives the three-jaw manipulator to rotate slowly, ensuring that the lubricating oil evenly covers the casters, improving their lubrication effect and preventing performance degradation caused by dry friction. The equipment uses a torque sensor to monitor the tightening torque of the casters in real time. During the "tightening in—untightening out—tightening in again" installation process, it ensures that each caster is tightened with the optimal torque, preventing thread damage due to overtightening or loosening due to overloosening, thus improving assembly consistency. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the main unit structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the feeding component structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the tooling component structure of this utility model.
[0026] Figure label:
[0027] 1. Main unit; 2. Feeding assembly; 201. Vibrating feeder; 202. Straight vibrator; 203. Guide rail; 3. Tooling assembly; 301. Cylinder; 302. Connecting frame; 303. Rotary motor; 304. Three-jaw mechanical head; 305. Torque sensor; 4. Metering valve; 5. Oil outlet; 6. Tooling fixture; 7. Lifting platform; 8. Translation platform; 9. Gantry frame; 10. Main control cabinet; 11. Control buttons; 12. Main control switch. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] like Figures 1-4 As shown, the present invention proposes a bottom caster oiling assembly machine, which includes a main platform 1, a feeding component 2, a tooling component 3 and a metering valve 4. The upper surface of the main platform 1 is provided with a tooling fixture 6. A gantry frame 9 is longitudinally slidable on the main platform 1. A translation platform 8 is laterally slidable on the gantry frame 9. A lifting platform 7 is vertically slidable on the translation platform 8. The sliding movements of the gantry frame 9, the translation platform 8 and the lifting platform 7 constitute a three-axis motion module. The three-axis motion module is used to control the movement of the tooling component 3.
[0031] The feeding component 2 is connected to the feed port of the main unit 1. The feeding component 2 is used to transport the casters to the feeding position. The personnel put the casters into the vibrating feeding plate 201 in batches, and then manually place the chassis on the tooling fixture 6. Connect the external power supply. The operation of the feeding component 2 makes the casters arrange in an orderly manner according to the set direction and transport them to the feeding position of the main unit 1.
[0032] The metering valve 4 is located at a designated position on the main unit 1. The open end of the metering valve 4 is provided with an oil outlet 5. The three-jaw mechanical head 304 is controlled to move to the feeding position to pick up the caster and move to the oiling position, i.e., the oil outlet 5. The metering valve 4 is connected to an external oiler. The oil is controlled by the metering valve 4. At this time, the cylinder 301 drives the three-jaw mechanical head 304 to move downward, so that the gripped workpiece contacts the oil outlet 5. At the same time, the rotary motor 303 works to drive the three-jaw mechanical head 304 to slowly rotate to complete the oiling action of the caster.
[0033] Tooling component 3 is mounted on the main unit 1. Tooling component 3 is used to grip, rotate, and install casters. After oiling, the three-jaw mechanical head 304 moves upward and resets. Driven by the three-axis motion module, the three-jaw mechanical head 304 grips the caster and moves it to the tooling fixture 6. The caster is aligned with the threaded hole of the chassis. Then, the tooling component 3 and the three-axis motion module work together to assemble the caster and the chassis. The assembly process is to screw in, then screw out, and then screw in again. After completion, the three-jaw robot grips the next caster.
[0034] Example 2
[0035] like Figures 1-4As shown, the bottom caster oiling assembly machine proposed in this utility model, compared with Embodiment 1, further includes: a feeding component 2 consisting of a vibrating feeding plate 201, a linear vibrator 202, and a guide rail 203. The vibrating feeding plate 201 is located on the side of the main unit 1, the guide rail 203 is located on the vibrating feeding plate 201, the linear vibrator 202 is located on the lower surface of the guide rail 203, and the opening of the guide rail 203 is connected to the feed port of the main unit 1. The vibrating feeding plate 201 is used to store and orderly transport the casters, and the linear vibrator 202 causes the casters to be transported in a straight line along the guide rail 203 by vibration. The vibrating feeding plate 201 and the linear vibrator 202 work together to ensure that the casters are arranged in an orderly manner according to the set direction and transported to the feeding position.
[0036] The tooling assembly 3 consists of a cylinder 301, a connecting frame 302, a rotary motor 303, a three-jaw mechanical head 304, and a torque sensor 305. The connecting frame 302 is located on the outer wall of the lifting platform 7, the cylinder 301 is located on the connecting frame 302, the rotary motor 303 is located on the output end of the cylinder 301, the torque sensor 305 is located on the output end of the rotary motor 303, and the three-jaw mechanical head 304 is located on the working end of the torque sensor 305. When the tooling assembly 3 is working, the three-jaw mechanical head 304 clamps the workpiece, the cylinder 301 controls the lifting action of the three-jaw mechanical head 304 to adjust the height, the rotary motor 303 drives the three-jaw mechanical head 304 to rotate, and the torque sensor 305 monitors the tightening torque to ensure that the torque reaches the set value and avoids being too tight or too loose, which would affect the assembly quality.
[0037] The movement of the gantry 9 relative to the main unit 1, the movement of the translation stage 8 relative to the gantry 9, and the movement of the lifting platform 7 relative to the translation stage 8 are all driven by servo motors and reducers through gears. These movements are used to control the spatial movement of the tooling assembly 3.
[0038] The main control cabinet 10 is located at the rear of the main unit 1, and the operation surface of the main unit 1 is equipped with control buttons 11 and main control switch 12.
[0039] It should be noted that the vibrating feeder 201, the linear vibrator 202, the cylinder 301, the rotary motor 303, the three-jaw mechanical head 304, the torque sensor 305, and the three-axis motion module structure are existing mature technologies. Their working principles and internal structures are known to those skilled in the art. This utility model only utilizes their functions without improving their internal structures. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0040] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A bottom caster oiling assembly machine, comprising a main unit (1), a feeding assembly (2), a tooling assembly (3), and a metering valve (4), characterized in that: The upper surface of the main unit (1) is provided with a tooling fixture (6), a gantry frame (9) is slidably mounted on the main unit (1) in the longitudinal direction, a translation platform (8) is slidably mounted on the gantry frame (9) in the transverse direction, and a lifting platform (7) is slidably mounted on the translation platform (8). The feeding assembly (2) is connected to the feed port of the main unit (1), and the feeding assembly (2) is used to transport the casters to the feeding position; The metering valve (4) is located at a designated position on the main unit (1), and the opening end of the metering valve (4) is provided with an oil outlet (5); The tooling assembly (3) is mounted on the main unit (1) and is used for clamping, rotating and installing casters.
2. The bottom caster oiling assembly machine according to claim 1, characterized in that: The feeding assembly (2) consists of a vibrating feeding plate (201), a linear vibrator (202), and a guide rail (203). The vibrating feeding plate (201) is located on the side of the main unit (1). The guide rail (203) is located on the vibrating feeding plate (201). The linear vibrator (202) is located on the lower surface of the guide rail (203). The opening of the guide rail (203) is connected to the feed port of the main unit (1).
3. The bottom caster oiling assembly machine according to claim 2, characterized in that: The vibrating feeder (201) is used to store and transport casters in an orderly manner. The straight vibrator (202) causes the casters to be transported in a straight line along the guide rail (203) by vibration. The vibrating feeder (201) and the straight vibrator (202) work together to ensure that the casters are arranged in an orderly manner in the set direction and transported to the feeding position.
4. The bottom caster oiling assembly machine according to claim 1, characterized in that: The tooling assembly (3) consists of a cylinder (301), a connecting frame (302), a rotary motor (303), a three-jaw mechanical head (304), and a torque sensor (305). The connecting frame (302) is located on the outer wall of the lifting platform (7), and the cylinder (301) is located on the connecting frame (302).
5. The bottom caster oiling assembly machine according to claim 4, characterized in that: The rotary motor (303) is located on the output end of the cylinder (301), the torque sensor (305) is located on the output end of the rotary motor (303), and the three-jaw mechanical head (304) is located on the working end of the torque sensor (305).
6. The bottom caster oiling assembly machine according to claim 1, characterized in that: The movement of the gantry (9) relative to the host platform (1), the movement of the translation platform (8) relative to the gantry (9), and the movement of the lifting platform (7) relative to the translation platform (8) are all driven by servo motors and reducers through gears. The above-mentioned movement actions are used to control the tooling assembly (3) to perform spatial movement.
7. The bottom caster oiling assembly machine according to claim 1, characterized in that: The main control unit (1) is provided with a main control cabinet (10) at the rear end, and the operation surface of the main control unit (1) is provided with control buttons (11) and main control switches (12).