An inner wall oiler for fastener nut production

Abstract

The utility model relates to fastener processing technical field, concretely relates to a inner wall oiler for fastener nut production, including straight tube, fixed body and oiling body, fixed body includes the fixed structure of placing disc and with the top insertion cooperation of placing disc, fixed structure is used for clamping and fixing to nut, and the outer wall rotation cooperation of placing disc bottom end and straight tube inner wall, oiling body includes drive structure and with the oiling structure of drive structure inner wall thread connection, and the upper and lower sliding cooperation of oiling structure and straight tube inner wall, drive structure and straight tube inner wall rotation cooperation, drive structure and placing disc bottom end inner wall joint cooperation. In the utility model, when motor drive outer sleeve rotates, makes the outer sleeve drive inner shaft along straight tube and goes up, the outer sleeve drives placing disc to rotate synchronously, namely hollow hose when oiling to nut inner wall, placing disc drives nut rotation, thereby realizes the even smearing of nut inner wall to many angles.

Description

Technical Field

[0001] This utility model relates to the field of fastener processing technology, and more specifically, to an inner wall oiler for fastener nut production. Background Technology

[0002] Fasteners are mechanical parts that connect or fix two or more objects. Their core characteristics are standardization, detachability, and reusability. Fastener manufacturing is the process of processing steel into standard parts such as bolts, nuts, and screws through processes such as cold heading and hot forging.

[0003] When using nuts, the internal threads, which are responsible for fixing, need to be kept intact to ensure normal use. During storage, transportation, and use, the surface of the internal threads of nuts is easily exposed to humid air or corrosive media. Without effective protection, the metal threads will rust, leading to obstructed thread fit, difficulty in disassembly, or even complete seizure. Therefore, during the manufacturing process of nuts, it is necessary to perform reliable and efficient oiling and lubrication treatment on the internal threads of the finished nuts for rust prevention.

[0004] The commonly used technique for applying rust-preventive oil to the inner threads of nuts is manual application using a brush or grease gun. The problem is that manual application makes it difficult to precisely control the amount and uniformity of the oil, easily leading to uneven coverage. Some areas may have excessively thick layers, resulting in waste, while others may have insufficient or even missed areas. During nut use, areas with insufficient rust-preventive oil become the starting point for wear and stress corrosion due to the lack of effective lubrication. More importantly, manual application is inefficient, and the inaccurate control of oil dosage leads to material waste and increased costs. Furthermore, the fluctuation in oiling quality poses a threat to the long-term reliability of the fastener connection. Summary of the Invention

[0005] The purpose of this invention is to provide an inner wall oiler for fastener and nut production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides an inner wall oiler for fastener nut production, comprising a straight cylinder and a fixing body and an oiling body disposed on the straight cylinder. The fixing body includes a placement plate and a fixing structure that is inserted and engaged with the top of the placement plate. The fixing structure is used to clamp and fix the nut. The outer wall of the bottom end of the placement plate is rotatably engaged with the inner wall of the straight cylinder. The oiling body includes a driving structure and an oiling structure. The driving structure includes an outer sleeve and a motor fixed to the outer wall of the straight cylinder. The outer sleeve is driven by the motor. The outer wall of the oiling structure is threadedly connected to the inner wall of the outer sleeve. The bottom end of the oiling structure slides vertically against the inner wall of the straight cylinder. The outer sleeve is located inside the straight cylinder, and the outer wall of the outer sleeve is rotatably engaged with the inner wall of the straight cylinder. The outer wall of the outer sleeve is snapped into the inner wall of the bottom end of the placement plate. The motor drives the outer sleeve to rotate. The outer sleeve drives the oiling structure to move up and down along the inner wall of the straight cylinder through the thread. When the top of the oiling structure contacts the inner wall of the nut to apply oil, the outer sleeve drives the nut to rotate synchronously through the placement plate.

[0007] As a further improvement to this technical solution, the fixing structure includes a pair of disc rim plates, a contact plate, and an adjusting body for controlling the movement of the contact plate. The two disc rim plates are symmetrically distributed on both sides of the placement plate. The bottom end of the disc rim plate is fixedly connected to the side wall of the placement plate. One end of the contact plate is inserted into the disc rim plate, and the other end of the contact plate is used to contact the nut.

[0008] As a further improvement to this technical solution, the adjusting body includes two slide rods, one end of each slide rod slides through the contact plate, and both ends of each slide rod are fixed with connecting blocks. The connecting blocks at the same end of the two adjusting bodies are threaded with screws, and a screw shank is fixed between the two screws.

[0009] As a further improvement to this technical solution, a second retaining ring is fixedly connected to the bottom edge of the outer sleeve, and a second annular groove is correspondingly opened inside the straight cylinder. The second retaining ring is rotatably engaged with the second annular groove, and the drive gear of the motor meshes with the side wall of the second retaining ring. The oiling structure includes a hollow inner shaft and an oil supply pipe connected to the bottom end of the inner shaft. The outer wall of the inner shaft near the bottom is slidably connected to the inner wall of the straight cylinder. The top end of the inner shaft passes through the middle of the outer sleeve. An oiling component is provided at the top end of the inner shaft. The outer wall of the inner shaft is threadedly connected to the inner wall of the outer sleeve. The central axis of the inner shaft coincides with the central axis of the placement tray.

[0010] As a further improvement to this technical solution, the oiling component is a hollow structure with a cylindrical structure having several round holes on its sidewall. The interior of the oiling component is connected to the interior of the inner shaft, and multiple hollow flexible tubes are connected to the sidewall of the oiling component.

[0011] As a further improvement to this technical solution, a plurality of protrusions are fixedly connected to the outer wall of the outer sleeve, and a corresponding slot is provided on the inner wall of the placement tray, wherein the protrusions and the slot are engaged in a locking fit.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this fastener nut production inner wall oiler, by rotating the screw shank, the screw shank synchronously drives the two sliding rods to move closer or further apart, and then the two sliding rods drive the two contact plates to move synchronously. This ensures that when the two contact plates clamp and fix the nut, the nut is in the center position, that is, the central axis of the nut coincides with the central axis of the placement plate and the oiling structure. This allows the oiling structure to easily penetrate the inner wall of the nut and evenly apply oil to the inner wall of the nut.

[0013] 2. In this fastener nut production inner wall oiler, when the motor drives the outer sleeve to rotate, causing the outer sleeve to move the inner shaft upward along the straight cylinder, the outer sleeve drives the placement plate to rotate synchronously. That is, when the hollow hose is applying oil to the inner wall of the nut, the placement plate drives the nut to rotate, thereby achieving multi-angle uniform coating on the inner wall of the nut. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the straight cylinder and fixed body structure of this utility model; Figure 4 This is a schematic cross-sectional view of the straight cylinder and oil-coated body structure of this utility model. Figure 5 This is a schematic diagram showing the assembly and disassembly of the motor, outer sleeve, inner shaft, and placement disk of this utility model.

[0015] The meanings of the labels in the diagram are as follows: 1. Straight tube; 2. Fixing body; 21. Placing tray; 211. Slot; 22. Tray rim plate; 23. Contact plate; 24. Slide rod; 25. Screw shank; 3. Oiled body; 31. Outer sleeve; 311. Protrusion; 32. Inner shaft; 33. Oil supply pipe; 34. Oiled parts. Detailed Implementation

[0016] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0019] Please see Figures 1-5 As shown, this embodiment provides an inner wall oiler for fastener nut production, including a straight cylinder 1, a fixed body 2, and an oiling body 3; The fixing body 2 includes a placement plate 21 and a fixing structure that is inserted into the top of the placement plate 21. The fixing structure is used to clamp and fix the nut. The bottom end of the placement plate 21 is located inside the straight cylinder 1. The outer wall of the bottom end of the placement plate 21 is provided with a first retaining ring. The inner wall of the straight cylinder 1 is correspondingly provided with a first annular groove. The first retaining ring is located in the first annular groove. The outer wall of the bottom end of the placement plate 21 and the inner wall of the straight cylinder 1 are rotated together by the first retaining ring and the first annular groove. The oiling body 3 includes a driving structure and an oiling structure threadedly connected to the inner wall of the driving structure. The oiling structure slides up and down with the inner wall of the straight cylinder 1. The driving structure is located inside the straight cylinder 1 and rotates with the inner wall of the straight cylinder 1. The driving structure is located inside the bottom end of the placement plate 21 and engages with the inner wall of the bottom end of the placement plate 21. The driving structure drives the oiling structure to move up and down along the inner wall of the straight cylinder 1 through the thread. When the top of the oiling structure contacts the inner wall of the nut to apply oil, the driving structure drives the nut to rotate synchronously through the placement plate 21, so that the oiling structure can achieve multi-angle coating on the inner wall of the nut.

[0020] The above structure is disclosed below: After the nut is placed on the upper surface of the placement tray 21, it needs to be fixed to facilitate the oiling of the inner wall of the nut. The fixing structure includes a pair of tray edge plates 22, a contact plate 23, and an adjusting body for controlling the movement of the contact plate 23. The two tray edge plates 22 are symmetrically distributed on both sides of the placement tray 21. The bottom end of the tray edge plate 22 is fixedly connected to the side wall of the placement tray 21. One end of the contact plate 23 is inserted into the tray edge plate 22, and the other end of the contact plate 23 is used to contact the nut. After the nut is placed on the upper surface of the placement tray 21, the two contact plates 23 are moved toward the nut by adjustment until the two contact plates 23 contact the outer wall of the nut, thus clamping and fixing the nut.

[0021] During the clamping process, to ensure that the central axis of the nut coincides with the central axis of the placement plate 21 and the oiling structure, it is convenient for the oiling structure to penetrate the inner wall of the nut and apply oil evenly to the inner wall of the nut. The adjusting body includes two slide rods 24. One end of each slide rod 24 slides through the contact plate 23. Both ends of each slide rod 24 are fixed with connecting blocks. The connecting blocks at the same end of the two adjusting bodies are threaded with screws. A screw shank 25 is fixed between the two screws. The other end of the slide rod 24 slides through the contact plate 23. By rotating the screw shank 25, the screw shank 25 synchronously drives the two screws to rotate. The rotating screws are threadedly connected to the connecting blocks, causing the two adjusting bodies to move closer or further apart. When the two adjusting bodies move closer together, the two contact plates 23 move synchronously, clamping and fixing the nut. At this time, the nut is in the center position, that is, the central axis of the nut coincides with the central axis of the placement plate 21 and the oiling structure.

[0022] After the nut is centered and clamped, the inner wall of the nut can be oiled. The drive structure includes an outer sleeve 31 and a motor fixed to the outer wall of the straight cylinder 1. The outer sleeve 31 is located inside the straight cylinder 1, and a second retaining ring is fixedly connected to the bottom edge of the outer sleeve 31. A second ring groove is correspondingly opened inside the straight cylinder 1. The second retaining ring is located in the second ring groove and rotates with the second ring groove. Several teeth are provided on the side wall of the second retaining ring. The drive gear of the motor meshes with the side wall of the second retaining ring through the provided teeth. The oiling structure includes an inner shaft 32 and an oil supply pipe 33 connected to the bottom end of the inner shaft 32. The outer wall of the inner shaft 32 near the bottom is slidably connected to the inner wall of the straight cylinder 1. The top end of the inner shaft 32 passes through the middle of the outer sleeve 31. An oiling component 34 is provided at the top end of the inner shaft 32. The outer wall of the inner shaft 32 is threadedly connected to the inner wall of the outer sleeve 31. The central axis of the inner shaft 32 coincides with the central axis of the placement plate 21.

[0023] The oiling component 34 is a hollow cylindrical structure with several round holes on its side wall. The interior of the oiling component 34 is connected to the interior of the inner shaft 32, and multiple hollow hoses are connected to the side wall of the oiling component 34. Each hollow hose is connected to a corresponding round hole. The purpose of using hollow hoses is to avoid hard contact with the inner wall of the nut, which would damage the threads of the inner wall of the nut.

[0024] The motor drives the outer sleeve 31 to rotate inside the straight cylinder 1 through gear meshing. When the outer sleeve 31 rotates, it drives the inner shaft 32 to move up and down along the inner wall of the straight cylinder 1. When the inner shaft 32 moves up, the oiling part 34 at the top of the outer sleeve 31 enters the inner wall of the nut. The rust-preventive oil enters the inner shaft 32 through the oil supply pipe 33. The rust-preventive oil flows along the inner shaft 32 to the top and finally flows out through the hollow hose. The rust-preventive oil flowing out from the hollow hose is coated onto the inner wall surface of the nut.

[0025] When the inner shaft 32 moves upward, so that the hollow hose applies oil to the inner wall of the nut, in order to ensure that the anti-rust oil is applied evenly to the inner wall of the nut, multiple protrusions 311 are fixedly connected to the outer wall of the outer sleeve 31. The inner wall of the placement plate 21 is provided with corresponding slots 211. The protrusions 311 are located in the slots 211 and engage with the slots 211. When the motor drives the outer sleeve 31 to rotate, so that the outer sleeve 31 drives the inner shaft 32 to move upward along the straight cylinder 1, the outer sleeve 31 drives the placement plate 21 to rotate synchronously. That is, when the hollow hose applies oil to the inner wall of the nut, the placement plate 21 drives the nut to rotate, thereby achieving multi-angle uniform application of oil to the inner wall of the nut.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An inner wall oiler for fastener nut production, comprising a straight cylinder (1) and a fixing body (2) and an oiling body (3) disposed on the straight cylinder (1), characterized in that: The fixing body (2) includes a placement plate (21) and a fixing structure that is inserted into the top of the placement plate (21). The fixing structure is used to clamp and fix the nut. The bottom outer wall of the placement plate (21) is rotatably engaged with the inner wall of the straight cylinder (1). The oiling body (3) includes a driving structure and an oiling structure. The driving structure includes an outer sleeve (31) and a motor fixed on the outer wall of the straight cylinder (1). The outer sleeve (31) is connected to the motor for transmission. The outer wall of the oiling structure is threadedly connected to the inner wall of the outer sleeve (31). The bottom end of the oiling structure slides up and down with the inner wall of the straight cylinder (1). The outer sleeve (31) is located inside the straight cylinder (1), and the outer wall of the outer sleeve (31) rotates with the inner wall of the straight cylinder (1). The outer wall of the outer sleeve (31) is engaged with the inner wall of the bottom end of the placement plate (21). The motor drives the outer sleeve (31) to rotate. The outer sleeve (31) drives the oiling structure to move up and down along the inner wall of the straight cylinder (1) through the thread. When the top of the oiling structure contacts the inner wall of the nut for oiling, the outer sleeve (31) drives the nut to rotate synchronously through the placement plate (21).

2. The inner wall oiler for fastener nut production according to claim 1, characterized in that: The fixing structure includes a pair of rim plates (22), a contact plate (23), and an adjusting body for controlling the movement of the contact plate (23). The two rim plates (22) are symmetrically distributed on both sides of the placement plate (21). The bottom end of the rim plate (22) is fixedly connected to the side wall of the placement plate (21). One end of the contact plate (23) is inserted into the rim plate (22), and the other end of the contact plate (23) is used to contact the nut.

3. The inner wall oiler for fastener nut production according to claim 2, characterized in that: The adjusting body includes two slide rods (24), one end of each slide rod (24) slides through the contact plate (23), both ends of each slide rod (24) are fixed with connecting blocks, and the connecting blocks at the same end of the two adjusting bodies are threaded with screws, and a screw shank (25) is fixed between the two screws.

4. The inner wall oiler for fastener nut production according to claim 2, characterized in that: A second retaining ring is fixedly connected to the bottom edge of the outer sleeve (31), and a second ring groove is correspondingly opened inside the straight cylinder (1). The second retaining ring is rotatably engaged with the second ring groove, and the drive gear of the motor meshes with the side wall of the second retaining ring. The oiling structure includes a hollow inner shaft (32) and an oil supply pipe (33) connected to the bottom end of the inner shaft (32). The outer wall of the inner shaft (32) near the bottom is slidably connected to the inner wall of the straight cylinder (1). The top end of the inner shaft (32) passes through the middle of the outer sleeve (31). An oiling component (34) is provided at the top end of the inner shaft (32). The outer wall of the inner shaft (32) is threadedly connected to the inner wall of the outer sleeve (31). The central axis of the inner shaft (32) coincides with the central axis of the placement plate (21).

5. The inner wall oiler for fastener and nut production according to claim 4, characterized in that: The oiling component (34) is a hollow cylindrical structure with several round holes on its side wall. The interior of the oiling component (34) is connected to the interior of the inner shaft (32), and the side wall of the oiling component (34) is connected to multiple hollow hoses.

6. The inner wall oiler for fastener and nut production according to claim 4, characterized in that: Multiple protrusions (311) are fixedly connected to the outer wall of the outer sleeve (31), and a corresponding slot (211) is provided on the inner wall of the placement tray (21). The protrusions (311) and the slot (211) engage with each other.

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