Lubricating device for metal part tapping tool bit

By designing structures such as hanging oil bottles, guide rods, and sleeves on the tapping machine, the problems of lubricant waste and pollution are solved, achieving efficient utilization of lubricant and clean equipment.

CN224144143UActive Publication Date: 2026-04-21HUBEI FUXUAN PRECISION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI FUXUAN PRECISION IND CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The rudimentary lubrication system of existing tapping machines leads to problems such as wasted lubricating oil and contamination of surrounding equipment and workers' clothing.

Method used

A lubrication device for metal tapping heads was designed, including a suspended oil bottle, a lubricating oil pipe, a guide rod, a sleeve, a disc lubrication pad, and an oil suction sleeve. Through the cooperation of the guide rod and the relief spring, the lubricating oil is effectively transported and recovered, preventing it from being thrown away.

Benefits of technology

It achieves efficient use of lubricating oil, protects the cleanliness of equipment and personnel, reduces wear, and minimizes lubricating oil waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal piece tapping tool bit lubricating device which comprises an oil bottle hung on a tapping machine body and further comprises a fixing frame fixed to a tapping machine tool bit base, and a guide rod parallel to a tool bit installed at the bottom of the tool bit base is fixed to one side of the fixing frame. The surface of the lower end of the guide rod is movably sleeved with a connecting block and a receding spring, the surface of the lower end of the guide rod is further fixedly connected with a fixing disc, and the upper end and the lower end of the receding spring are fixedly connected to the lower surface of the fixing disc and the upper surface of the connecting block respectively. The sleeve capable of contracting upwards is arranged outside the tool bit, the blocking effect is achieved, lubricating oil is conveyed to the disc lubricating pad in the sleeve to infiltrate the tool bit, the surface of the tool bit can be cooled and lubricated, and too much lubricating oil cannot be attached to the surface of the tool bit. And if redundant lubricating oil exists, the lubricating oil can be thrown onto the oil suction sleeve when the tool bit rotates at a high speed, and finally leaks and is stored in the oil receiving disc below the sleeve, so that the lubricating oil is convenient to recycle.
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Description

Technical Field

[0001] This utility model relates to the field of tapping machine technology, specifically to a lubrication device for tapping heads of metal parts. Background Technology

[0002] A tapping machine is a device used for drilling and tapping metal parts, and it is very common in the hardware processing industry. When tapping some metal parts with high hardness, the wear of the tapping tool is relatively large. In order to reduce the wear of the tapping tool and adapt to high production capacity, the tool is often lubricated to reduce the temperature of the tool, reduce wear, and effectively reduce the operating cost of the tool.

[0003] Typically, tapping machines do not have built-in lubrication devices for the tapping head. Some companies use a plastic bottle to hold lubricating oil, which is then delivered directly to the surface of the tapping head through a clean tubing to achieve cooling and lubrication. However, it has been found that while this rudimentary lubrication system does provide some cooling and lubrication, the high-speed rotation of the tapping head during operation causes lubricating oil to be flung around, wasting oil and soiling surrounding equipment and workers' clothing, making it inconvenient to use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lubrication device for metal tapping heads, which solves the problems of wasting lubricating oil and soiling surrounding equipment and workers' clothing caused by the simple, homemade tapping head lubrication devices in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A metal tapping head lubrication device includes an oil bottle suspended on the tapping machine body, a lubricating oil pipe connected to the bottom of the oil bottle, a flow regulator installed on the lubricating oil pipe, and a fixing bracket fixed on the tapping machine head holder. A guide rod parallel to the tapping head installed at the bottom of the head holder is fixed on one side of the fixing bracket.

[0007] The lower end surface of the guide rod is movably sleeved with a connecting block and a relief spring, and the lower end surface of the guide rod is also fixedly connected with a fixed plate. The upper end and lower end of the relief spring are fixedly connected to the lower surface of the fixed plate and the upper surface of the connecting block, respectively. A sleeve coaxially sleeved on the outside of the cutter head is fixed to one side of the connecting block.

[0008] The inner wall of the sleeve is fixed with a disc lubricating pad that is movably fitted onto the smooth upper half surface of the cutter head. The inner wall of the sleeve is fixed with an oil suction sleeve located below and in contact with the disc lubricating pad. The oil suction sleeve corresponds to the position of the lower half of the cutter head and maintains a gap with the cutter head. The lower end of the lubricating oil pipe is connected to the position of the sleeve corresponding to the disc lubricating pad. The lower end of the sleeve is fixedly connected with an oil receiving tray, and a through hole is provided on the lower end side wall of the sleeve.

[0009] Preferably, the lubricating oil pipe is a transparent thin flexible pipe.

[0010] Preferably, the connecting block is slidably sleeved on the surface of the guide rod, the guide rod is a smooth square rod, and the guide hole on the connecting block corresponding to the guide rod is a square hole that matches the shape of the guide rod.

[0011] Preferably, both the disc lubrication pad and the oil-absorbing sleeve are sponge pads or cotton pads.

[0012] Preferably, the distance between the oil suction sleeve and the cutter head is not less than 2 cm.

[0013] Preferably, the oil receiving tray is a disc with a clearance hole in the center corresponding to the cutter head, and both the inner and outer edges are bent upwards. The distance between the inner edge of the oil receiving tray and the cutter head is not less than 1 cm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention achieves a blocking effect by setting an upwardly retractable sleeve on the outside of the tapping head. Lubricating oil is delivered to the disc lubrication pad inside the sleeve to wet the tapping head. This allows the surface of the tapping head to be cooled and lubricated without excessive lubricating oil adhering to it. Any excess lubricating oil will be flung onto the oil suction sleeve when the tapping head rotates at high speed, and eventually leaks and is stored in the oil receiving tray below the sleeve for easy recycling. This not only achieves the purpose of lubricating and cooling the tapping head and reducing wear, but also protects surrounding equipment and workers' clothing from contamination, and avoids the waste of lubricating oil. It solves the problems of wasting lubricating oil and soiling surrounding equipment and workers' clothing in the existing homemade and simple tapping head lubrication devices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the sleeve of this utility model.

[0018] In the diagram: 1. Oil bottle; 2. Lubricating oil pipe; 3. Flow regulator; 4. Cutter head seat; 5. Fixing frame; 6. Cutter head; 7. Guide rod; 8. Connecting block; 9. Relief spring; 10. Fixing disc; 11. Sleeve; 12. Disc lubrication pad; 13. Oil suction sleeve; 14. Oil receiving tray; 15. Through hole. Detailed Implementation

[0019] 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.

[0020] like Figure 1-2 As shown, this utility model provides a technical solution: a metal tapping head lubrication device, including an oil bottle 1 suspended on the tapping machine body, a lubricating oil pipe 2 connected to the bottom of the oil bottle 1, the lubricating oil pipe 2 being a transparent thin hose, a flow regulator 3 installed on the lubricating oil pipe 2, and a fixing bracket 5 fixed on the tapping machine head seat 4, with a guide rod 7 fixed on one side of the fixing bracket 5 parallel to the head 6 installed at the bottom of the head seat 4;

[0021] A connecting block 8 and a relief spring 9 are movably sleeved on the lower end surface of the guide rod 7. The connecting block 8 is slidably sleeved on the surface of the guide rod 7. The guide rod 7 is a smooth square rod, and the guide hole on the connecting block 8 corresponding to the guide rod 7 is a square hole that matches the shape of the guide rod 7. A fixing plate 10 is also fixedly connected to the lower end surface of the guide rod 7. The upper and lower ends of the relief spring 9 are fixedly connected to the lower surface of the fixing plate 10 and the upper surface of the connecting block 8, respectively. A sleeve 11 coaxially sleeved on the outside of the cutter head 6 is fixed on one side of the connecting block 8.

[0022] A disc lubricating pad 12 is fixed to the inner wall of the sleeve 11 and is movably sleeved on the smooth upper half surface of the cutter head 6. An oil-absorbing sleeve 13 is fixed to the inner wall of the sleeve 11, located below the disc lubricating pad 12 and in contact with the disc lubricating pad 12. Both the disc lubricating pad 12 and the oil-absorbing sleeve 13 are sponge pads or cotton pads. The oil-absorbing sleeve 13 corresponds to the position of the lower half of the blade of the cutter head 6 and maintains a gap with the cutter head 6. The distance between the oil-absorbing sleeve 13 and the cutter head 6 is not less than 2 cm.

[0023] The lower end of the lubricating oil pipe 2 is connected to the position of the disc lubricating pad 12 corresponding to the sleeve 11. The lower end of the sleeve 11 is fixedly connected to the oil receiving plate 14. The oil receiving plate 14 is a disc with a relief hole in the center corresponding to the position of the cutter head 6, and both the inner and outer edges are bent upward. The distance between the inner edge of the oil receiving plate 14 and the cutter head 6 is not less than 1 cm, and a through hole 15 is provided on the lower end side wall of the sleeve 11.

[0024] Working principle:

[0025] The sleeve 11 is fitted over the outside of the cutter head 6 to prevent the cutter head 6 from splashing lubricating oil during high-speed rotation. Under the action of the relief spring 9 and the guide rod 7, when the cutter head 6 extends downward for tapping, the oil receiving pan 14 and the sleeve 11 are squeezed upward by the metal parts and can retract to make room. The disc lubricating pad 12 inside the sleeve 11 is fitted over the smooth upper half of the cutter head 6. The lubricating oil is delivered to the disc lubricating pad 12 to wet the cutter head 6, so that the surface of the cutter head 6 can be cooled and lubricated without too much lubricating oil adhering to it. If there is excess lubricating oil, it will be splashed onto the oil suction sleeve 13 when the cutter head 6 rotates at high speed. The excess lubricating oil will be absorbed and leaked into the oil receiving pan 14 below the sleeve 11. It can be recycled by tools such as a rubber-tipped suction tube or a syringe, which is very convenient to use.

[0026] It should be noted that, in this document, terms such as “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 process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubrication device for a metal tapping head, comprising an oil bottle (1) suspended on a tapping machine body, wherein a lubrication oil pipe (2) is connected to the bottom of the oil bottle (1), and a flow regulator (3) is installed on the lubrication oil pipe (2), characterized in that: It also includes a fixing bracket (5) fixed on the tapping machine cutter head holder (4), and a guide rod (7) parallel to the cutter head (6) installed at the bottom of the cutter head holder (4) is fixed on one side of the fixing bracket (5). The lower end surface of the guide rod (7) is movably sleeved with a connecting block (8) and a relief spring (9). The lower end surface of the guide rod (7) is also fixedly connected with a fixed plate (10). The upper and lower ends of the relief spring (9) are fixedly connected to the lower surface of the fixed plate (10) and the upper surface of the connecting block (8), respectively. A sleeve (11) is coaxially sleeved on one side of the connecting block (8) outside the cutter head (6). The inner wall of the sleeve (11) is fixed with a disc lubricating pad (12) that is movably sleeved on the smooth upper half surface of the cutter head (6). The inner wall of the sleeve (11) is fixed with an oil suction sleeve (13) located below the disc lubricating pad (12) and in contact with the disc lubricating pad (12). The oil suction sleeve (13) corresponds to the position of the lower half of the cutter head (6) and maintains a gap with the cutter head (6). The lower end of the lubricating oil pipe (2) is connected to the sleeve (11) at the position corresponding to the disc lubricating pad (12). The lower end of the sleeve (11) is fixedly connected with an oil receiving tray (14), and a through hole (15) is provided on the lower side wall of the sleeve (11).

2. A tapping tool lubrication device for metal pieces according to claim 1, characterized in that: The lubricating oil pipe (2) is a transparent thin hose.

3. The tapping tool lubrication device for metal pieces according to claim 1, characterized in that: The connecting block (8) is slidably sleeved on the surface of the guide rod (7). The guide rod (7) is a square rod with a smooth surface, and the guide hole on the connecting block (8) corresponding to the guide rod (7) is a square hole that matches the shape of the guide rod (7).

4. The tapping tool bit lubrication device for metal pieces according to claim 1, characterized in that: Both the disc lubrication pad (12) and the oil-absorbing sleeve (13) are sponge pads or cotton pads.

5. The tapping tool lubrication device for metal pieces according to claim 1, characterized in that: The distance between the oil suction sleeve (13) and the cutter head (6) is not less than 2 cm.

6. The tapping tool bit lubrication device for metal pieces according to claim 1, characterized in that: The oil receiving tray (14) is a disc with a clearance hole in the center corresponding to the cutter head (6), and both the inner and outer edges are bent upwards. The distance between the inner edge of the oil receiving tray (14) and the cutter head (6) is not less than 1 cm.