An oil injection machine for needle bearing machining
By using a servo motor-driven clamping mechanism and a hydraulically controlled oil injection mechanism, the problem of uneven oil injection in needle roller bearing processing is solved, achieving stable clamping and precise oil injection of needle roller bearings, thus improving oil injection efficiency and equipment applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINQING MUNICIPAL & NEEDLE ROLLER BEARING CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-09
AI Technical Summary
Existing oiling machines for needle roller bearings cannot rotate and clamp the bearings, resulting in a fixed oiling position that cannot fully cover the internal structure and uneven lubrication.
The clamping mechanism driven by a servo motor and the oil injection mechanism controlled by hydraulics achieve stable clamping and precise oil injection of the needle roller bearing through the cooperation of the threaded rod and threaded block. The servo motor drives the rotating shaft to rotate, and the hydraulic cylinder controls the movement of the oil injector to realize the rotation of the needle roller bearing and precise oil injection.
It achieves stable clamping and precise lubrication of needle roller bearings, improves the accuracy and efficiency of lubrication, avoids problems of uneven or missed lubrication, and enhances the versatility and applicability of the equipment.
Smart Images

Figure CN224339898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle roller bearing processing technology, specifically to an oil injection machine for needle roller bearing processing. Background Technology
[0002] Needle roller bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are both thin and long. These rollers are called needle rollers. In the manufacturing process of needle roller bearings, lubrication is a crucial step. Proper lubrication can effectively reduce internal friction of the bearing, reduce wear, extend service life, and ensure stable operation under complex working conditions.
[0003] A lubrication machine for processing needle roller bearings, disclosed in CN222122848U, uses a limiting rod to limit the upper clamping plate through the limiting groove, preventing the upper clamping plate from rotating with the bolts. The bracket provides stable support for the motor, making the motor run more stably. The soft pads bring the two lower clamping plates and the two upper clamping plates closer together, increasing the protection when clamping the needle roller bearing externally.
[0004] The oiling machine for needle roller bearings can clamp and fix the needle roller bearings using two sets of upper clamping plates and two sets of lower clamping plates. However, after clamping the needle roller bearings, the device cannot drive the needle roller bearings to rotate. Therefore, when oiling the needle roller bearings, the oiling position cannot be adjusted, and the lubricating oil can only be injected from a fixed angle, which cannot fully cover the internal structure. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this invention is to provide an oil injection machine for machining needle roller bearings, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil injection machine for processing needle roller bearings, comprising a base, a protective frame fixedly connected to the top of the base, a clamping mechanism provided in the middle of the top of the base, an oil injection mechanism provided on the top of the inner side of the protective frame, and a needle roller bearing body provided on the top of the clamping mechanism.
[0007] The clamping mechanism includes a servo motor, which is fixedly connected to the top inner side of the base. A rotating shaft is fixedly connected to the top of the servo motor, and a load-bearing plate is fixedly connected to the top of the rotating shaft. A rotating frame is fixedly connected to the outer side of the load-bearing plate, and a sliding plate is fixedly connected to the bottom of the rotating frame. A drive motor is fixedly connected to the top of the load-bearing plate, and a first threaded rod is fixedly connected to the top of the drive motor. The top of the first threaded rod is rotatably connected to the top inner side of the rotating frame. A threaded plate is threadedly connected to the outer periphery of the first threaded rod, and rotating plates are rotatably connected to the left and right sides of the threaded plate. A U-shaped plate is rotatably connected to the top of the rotating plate, and a V-shaped clamping plate is fixedly connected to the top of the U-shaped plate.
[0008] Preferably, the top of the base has a circular groove corresponding to the movement trajectory of the slide plate, and the slide plate is slidably connected inside the circular groove. The circular groove allows the slide plate to slide inside the base, and the slide plate can support the rotating frame, making the rotating frame more stable during rotation.
[0009] Preferably, the inner side of the rotating frame is provided with a groove corresponding to the movement trajectory of the U-shaped plate, and the U-shaped plate is slidably connected inside the groove. Through the groove, the U-shaped plate can move inside the rotating frame. When the U-shaped plate moves, it can drive the V-shaped clamp to move, so that the V-shaped clamp can clamp the needle roller bearing body.
[0010] Preferably, the V-shaped clamp is disposed on the outside of the needle roller bearing body, and the inner side of the V-shaped clamp is in close contact with the outer side of the needle roller bearing body. The V-shaped clamp can hold the needle roller bearing body, making the needle roller bearing body more stable during the oil injection process.
[0011] Preferably, the oil injection mechanism includes a rotary motor, which is fixedly connected to the top of the back end of the protective frame. A second threaded rod is fixedly connected to the front of the rotary motor and rotatably connected to the inner side of the protective frame. A threaded block is threadedly connected to the outer side of the second threaded rod. A connecting frame is fixedly connected to the bottom of the threaded block. A hydraulic cylinder is fixedly connected to the inner side of the connecting frame. An oil injector is fixedly connected to the bottom of the hydraulic cylinder. A telescopic tube is fixedly connected to the back end of the oil injector. An oil tank is fixedly connected to the bottom of the telescopic tube and fixedly connected to the back end of the base. A material pump is fixedly connected to the outer side of the telescopic tube and fixedly connected to the top of the oil tank.
[0012] Preferably, the top inner side of the protective frame is provided with a limiting groove corresponding to the movement trajectory of the threaded block, and the threaded block is slidably connected inside the limiting groove. The limiting groove can limit the movement of the threaded block, making the threaded block more stable during movement.
[0013] Preferably, the back end of the protective frame is provided with a fixing groove corresponding to the position of the telescopic tube, and the telescopic tube is slidably connected inside the fixing groove. Through the fixing groove, the telescopic tube can slide inside the protective frame.
[0014] Compared with the prior art, this utility model provides an oil injection machine for machining needle roller bearings, which has the following beneficial effects:
[0015] This oiling machine for needle roller bearings features a clamping mechanism where a drive motor rotates the first threaded rod, causing the threaded plate to move on the rod. Through the linkage between the rotating plate and the U-shaped plate, the position of the V-shaped clamping plate can be precisely adjusted, achieving stable clamping of needle roller bearing bodies of different specifications. A servo motor drives the rotating shaft, which in turn drives the rotating frame via a load-bearing plate. The V-shaped clamping plate then rotates the needle roller bearing body, effectively improving oiling accuracy and efficiency, and avoiding uneven or missed oiling caused by unstable bearing fixation.
[0016] This oiling machine for needle roller bearing processing has an oiling mechanism in which a rotating motor drives the second threaded rod to rotate, and the threaded block moves on the threaded rod, thereby driving the connecting frame, hydraulic cylinder and oiler to move laterally along the inner side of the protective frame; the hydraulic cylinder can control the up and down movement of the oiler, so that it can accurately inject oil into the needle roller bearing body, improving the versatility and applicability of the equipment. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a front view structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the clamping mechanism.
[0020] Figure 3 This is a schematic diagram of the oil injection mechanism.
[0021] Figure 4 This is a schematic diagram of the threaded rod and threaded block structure.
[0022] In the diagram: 1. Base; 2. Clamping mechanism; 21. Servo motor; 22. Slide plate; 23. Threaded plate; 24. Rotating frame; 25. U-shaped plate; 26. V-shaped clamping plate; 27. First threaded rod; 28. Rotating plate; 29. Drive motor; 201. Loading plate; 202. Rotating shaft; 3. Protective frame; 4. Oil injection mechanism; 41. Oil tank; 42. Material pump; 43. Telescopic tube; 44. Rotating motor; 45. Hydraulic cylinder; 46. Connecting frame; 47. Oil injector; 48. Threaded block; 49. Second threaded rod; 5. Needle roller bearing body. Detailed Implementation
[0023] 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.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] This utility model provides the following technical solution:
[0026] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: an oil injection machine for processing needle roller bearings, including a base 1, a protective frame 3 fixedly connected to the top of the base 1, a clamping mechanism 2 provided in the middle of the top of the base 1, an oil injection mechanism 4 provided on the top of the inner side of the protective frame 3, and a needle roller bearing body 5 provided on the top of the clamping mechanism 2.
[0027] The clamping mechanism 2 includes a servo motor 21, which is fixedly connected to the top of the inner side of the base 1. A rotating shaft 202 is fixedly connected to the top of the servo motor 21. A load-bearing plate 201 is fixedly connected to the top of the rotating shaft 202. A rotating frame 24 is fixedly connected to the outer side of the load-bearing plate 201. A sliding plate 22 is fixedly connected to the bottom of the rotating frame 24. A drive motor 29 is fixedly connected to the top of the load-bearing plate 201. A first threaded rod 27 is fixedly connected to the top of the drive motor 29. The top of the first threaded rod 27 is rotatably connected to the top of the inner side of the rotating frame 24. A threaded plate 23 is threadedly connected to the outer periphery of the first threaded rod 27. Rotating plates 28 are rotatably connected to the left and right sides of the threaded plate 23. A U-shaped plate 25 is rotatably connected to the top of the rotating plate 28. A V-shaped clamping plate 26 is fixedly connected to the top of the U-shaped plate 25.
[0028] Furthermore, a circular groove corresponding to the movement trajectory of the slide plate 22 is provided on the top of the base 1, and the slide plate 22 is slidably connected inside the circular groove. Through the circular groove, the slide plate 22 can slide inside the base 1. The slide plate 22 can support the rotating frame 24, making the rotating frame 24 more stable during rotation.
[0029] Furthermore, a groove corresponding to the movement trajectory of the U-shaped plate 25 is provided on the inner side of the rotating frame 24, and the U-shaped plate 25 is slidably connected inside the groove. Through the groove, the U-shaped plate 25 can move inside the rotating frame 24. When the U-shaped plate 25 moves, it can drive the V-shaped clamp 26 to move, so that the V-shaped clamp 26 can clamp the needle roller bearing body 5.
[0030] Furthermore, the V-shaped clamp 26 is disposed on the outside of the needle roller bearing body 5, and the inner side of the V-shaped clamp 26 is in close contact with the outer side of the needle roller bearing body 5. The V-shaped clamp 26 can clamp the needle roller bearing body 5, making the needle roller bearing body 5 more stable during the oil injection process.
[0031] Example 2: Please refer to Figure 1-4 Furthermore, based on Embodiment 1, the oil injection mechanism 4 further includes a rotating motor 44, which is fixedly connected to the top of the back end of the protective frame 3. A second threaded rod 49 is fixedly connected to the front of the rotating motor 44. The second threaded rod 49 is rotatably connected to the inner side of the protective frame 3. A threaded block 48 is threadedly connected to the outer side of the second threaded rod 49. A connecting frame 46 is fixedly connected to the bottom of the threaded block 48. A hydraulic cylinder 45 is fixedly connected to the inner side of the connecting frame 46. An oil injector 47 is fixedly connected to the bottom of the hydraulic cylinder 45. A telescopic tube 43 is fixedly connected to the back end of the oil injector 47. An oil tank 41 is fixedly connected to the bottom of the telescopic tube 43. The oil tank 41 is fixedly connected to the back end of the base 1. A material pump 42 is fixedly connected to the outer side of the telescopic tube 43. The material pump 42 is fixedly connected to the top of the oil tank 41.
[0032] Furthermore, a limiting groove corresponding to the movement trajectory of the threaded block 48 is provided on the top inner side of the protective frame 3, and the threaded block 48 is slidably connected inside the limiting groove. The limiting groove can limit the movement of the threaded block 48, making the threaded block 48 more stable during movement.
[0033] Furthermore, the back end of the protective frame 3 is provided with a fixing groove corresponding to the position of the telescopic tube 43, and the telescopic tube 43 is slidably connected inside the fixing groove. Through the fixing groove, the telescopic tube 43 can slide inside the protective frame 3.
[0034] In actual operation, when this device is used, the needle roller bearing body 5 that needs to be oiled is placed on the top of the rotating frame 24. The drive motor 29 is turned on by the PLC controller, so that the drive motor 29 drives the threaded plate 23 to move through the threaded rod. The threaded plate 23 drives the V-shaped clamp 26 to move through the rotating plate 28, so that the V-shaped clamp 26 can clamp the needle roller bearing body 5. After clamping the needle roller bearing body 5, the hydraulic cylinder 45 is turned on by the PLC controller, so that the hydraulic cylinder 45 drives the oil injector 47 to move downward, so that the oil injector 47 moves to the top of the needle roller bearing body 5. The rotating motor 44 is turned on by the PLC controller, so that the rotating motor 44 drives the threaded block 48 to move through the threaded rod, so that the threaded block 48 can move downward through the connecting frame 46 and the oil injector 47, so that the oil injector 47 moves to the oiling position of the needle roller bearing body 5.
[0035] Turn on the feed pump 42 so that it works in conjunction with the telescopic pipe 43. The telescopic pipe 43 transfers the lubricating oil inside the oil tank 41 to the oil injector 47. The oil injector 47 injects the lubricating oil into the needle roller bearing body 5. The PLC controller turns on the servo motor 21 so that the servo motor 21 drives the load-bearing plate 201 and the rotating frame 24 to rotate through the rotating shaft 202. The rotating frame 24 drives the clamped needle roller bearing body 5 to rotate so that lubricating oil can be injected into different positions of the needle roller bearing body 5, reducing the friction generated during the use of the needle roller bearing body 5.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An oil injection machine for machining needle roller bearings, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of a protective frame (3), a clamping mechanism (2) is provided in the middle of the top of the base (1), an oil injection mechanism (4) is provided on the top of the inner side of the protective frame (3), and a needle roller bearing body (5) is provided on the top of the clamping mechanism (2). The clamping mechanism (2) includes a servo motor (21), which is fixedly connected to the top of the inner side of the base (1). A rotating shaft (202) is fixedly connected to the top of the servo motor (21). A load-bearing plate (201) is fixedly connected to the top of the rotating shaft (202). A rotating frame (24) is fixedly connected to the outer side of the load-bearing plate (201). A sliding plate (22) is fixedly connected to the bottom of the rotating frame (24). A drive motor (29) is fixedly connected to the top of the load-bearing plate (201). A first threaded rod (27) is fixedly connected to the top of the drive motor (29). The top of the first threaded rod (27) is rotatably connected to the top of the inner side of the rotating frame (24). A threaded plate (23) is threadedly connected to the outer periphery of the first threaded rod (27). Rotating plates (28) are rotatably connected to the left and right sides of the threaded plate (23). A U-shaped plate (25) is rotatably connected to the top of the rotating plate (28). A V-shaped clamp (26) is fixedly connected to the top of the U-shaped plate (25).
2. The oiling machine for machining needle roller bearings according to claim 1, characterized in that: The base (1) has a circular groove on its top that corresponds to the movement trajectory of the slide (22), and the slide (22) is slidably connected inside the circular groove.
3. The oiling machine for machining needle roller bearings according to claim 1, characterized in that: The inner side of the rotating frame (24) is provided with a groove corresponding to the movement trajectory of the U-shaped plate (25), and the U-shaped plate (25) is slidably connected inside the groove.
4. The oiling machine for machining needle roller bearings according to claim 1, characterized in that: The V-shaped clamp (26) is located on the outside of the needle roller bearing body (5), and the inside of the V-shaped clamp (26) is in contact with the outside of the needle roller bearing body (5).
5. The oiling machine for machining needle roller bearings according to claim 1, characterized in that: The oil injection mechanism (4) includes a rotating motor (44), which is fixedly connected to the top of the back end of the protective frame (3). A second threaded rod (49) is fixedly connected to the front of the rotating motor (44). The second threaded rod (49) is rotatably connected to the inner side of the protective frame (3). A threaded block (48) is threadedly connected to the outer side of the second threaded rod (49). A connecting frame (46) is fixedly connected to the bottom of the threaded block (48). A hydraulic cylinder (45) is fixedly connected to the inner side of the connecting frame (46). An oil injector (47) is fixedly connected to the bottom of the hydraulic cylinder (45). A telescopic tube (43) is fixedly connected to the back end of the oil injector (47). An oil tank (41) is fixedly connected to the bottom of the telescopic tube (43). An oil tank (41) is fixedly connected to the back end of the base (1). A material pump (42) is fixedly connected to the outer side of the telescopic tube (43). The material pump (42) is fixedly connected to the top of the oil tank (41).
6. The oiling machine for machining needle roller bearings according to claim 5, characterized in that: The top inner side of the protective frame (3) is provided with a limiting groove corresponding to the movement trajectory of the threaded block (48), and the threaded block (48) is slidably connected inside the limiting groove.
7. The oiling machine for machining needle roller bearings according to claim 5, characterized in that: The protective frame (3) has a fixing groove at the back end that corresponds to the position of the telescopic tube (43), and the telescopic tube (43) is slidably connected inside the fixing groove.