A microtextured anti-friction coating structure for honing rod surface

Abstract

This utility model discloses a microtextured anti-friction coating structure for a honing rod surface, relating to the field of honing rods. It includes: a honing head; and a honing rod body, the bottom end of which is movably mounted inside the honing head. The honing rod body has a microtextured layer on its surface, the microtextured layer having multiple tiny pits or grooves. The surface of the microtextured layer is covered with an anti-friction coating. Multiple oil drain holes and oil passages are internally connected. The microtextured layer has multiple tiny pits or grooves for storing lubricant, capturing wear particles, and forming a stable bubble layer during friction, thereby reducing friction and wear. The surface of the microtextured layer is covered with an anti-friction coating made of a low surface energy material, such as organosilicon or organofluorine materials, to further reduce the coefficient of friction and improve wear resistance.

Description

Technical Field

[0001] This utility model relates to the field of honing rods, and in particular to a microtextured friction-reducing coating structure on the surface of a honing rod. Background Technology

[0002] Honing is a high-precision internal hole machining method widely used in the field of machinery manufacturing. Honing (also known as boring) is a finishing process performed on a surface using honing stones (also called honing strips) embedded in a honing head. During honing, the workpiece is mounted on the honing machine's worktable or in a fixture, and the honing head with several honing stone strips is inserted into the machined hole. The honing head is driven by the machine tool spindle to rotate and perform axial reciprocating motion. The honing stone strips contact the hole wall with a certain pressure, thus removing a very thin layer of metal.

[0003] Traditional honing rods suffer from shortened service life and reduced machining accuracy due to friction and wear during use.

[0004] Therefore, it is necessary to propose a microtextured friction-reducing coating structure for the surface of the honing rod to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a microtextured friction-reducing coating structure on the surface of a honing rod, so as to solve the problem that the service life and processing accuracy of traditional honing rods are shortened due to friction and wear during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a microtextured friction-reducing coating structure for the surface of a honing rod, comprising:

[0007] Honing head;

[0008] Honing rod body, the bottom end of which is movably installed inside the honing head;

[0009] The honing rod body has a microtextured layer on its surface, which has multiple tiny pits or grooves.

[0010] The surface of the microtextured layer is covered with a friction-reducing coating.

[0011] An oil passage is provided inside the honing rod body, and multiple oil drain holes are provided on the outer side of the honing rod body along the height direction, and the multiple oil drain holes are connected to the inside of the oil passage;

[0012] The honing head is provided with a fixing ring at the top, and a conical scraper sleeve is provided at the top of the fixing ring. A storage groove is provided on the side of the fixing ring near the honing rod body.

[0013] Preferably, the fixing ring and the conical scraper sleeve are fitted onto the outside of the honing rod body.

[0014] Preferably, the honing head has a feed groove inside for the honing rod body to extend into;

[0015] A conical head is fixed to the outer side of the extension end of the honing rod body, with the tip of the conical head facing downwards.

[0016] Preferably, a first spring is fixedly connected between the bottom end of the honing rod body and the bottom end of the feed groove;

[0017] A second spring is connected between the top of the conical head and the inside of the feed groove.

[0018] Preferably, a guide head is provided on the outer side of the honing head, and an oilstone is installed inside the guide head.

[0019] Preferably, a movable groove is provided inside the feed groove, and a propulsion block is slidably installed in the movable groove. One end of the propulsion block is connected to a connecting rod, and one end of the connecting rod passes through the honing head and is connected to the corresponding guide head.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. The microtextured layer has multiple tiny pits or grooves that store lubricant, trap wear particles, and form a stable bubble layer during friction, thereby reducing friction and wear. The surface of the microtextured layer is covered with a friction-reducing coating made of low surface energy materials, such as silicone or fluorine compounds, to further reduce the coefficient of friction and improve wear resistance.

[0022] 2. Lubricating oil can be injected into the oil circuit. The lubricating oil can be discharged from multiple oil drain holes to lubricate the friction areas at different heights. At the same time, when the honing rod body moves up and down, the movement of the honing rod body can make the entire friction area completely covered by lubricating oil.

[0023] 3. In the actual operation of this utility model, the tip of the conical scraper sleeve is set upward. When the honing rod body extends out of the honing head, the lubricating oil adhering to the outside of the honing rod body will be scraped off by the conical scraper sleeve, avoiding contact with the outside air and the adhesion of dust. The scraped lubricating oil is stored in the storage tank. When the honing rod body extends downward into the honing head again, it can drive the stored lubricating oil into the honing head, improving the efficiency of lubricating oil use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the microtextured friction-reducing coating structure on the surface of the honing rod of this utility model.

[0025] Figure 2 This is a schematic diagram of the interior of the honing rod body of this utility model.

[0026] Figure 3This utility model Figure 2 Enlarged diagram of point A in the middle.

[0027] Figure 4 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0028] In the diagram: 1. Honing rod body; 2. Honing head; 3. Guide head; 4. Oilstone; 5. Conical head; 6. First spring; 7. Second spring; 8. Feed groove; 9. Oil passage; 10. Oil drain hole; 11. Fixing ring; 12. Conical scraper sleeve; 13. Storage groove; 14. Moving groove; 15. Advancing block; 16. Connecting rod. Detailed Implementation

[0029] This utility model provides, for example Figures 1-4 The microtextured anti-friction coating structure shown includes:

[0030] Honing head 2;

[0031] Honing rod body 1, the bottom end of honing rod body 1 is movably installed inside honing head 2;

[0032] To address the issues of shortened service life and decreased machining accuracy caused by friction and wear during the use of traditional honing rods, a microtextured layer is incorporated into the surface of the honing rod body 1. This microtextured layer features multiple tiny pits or grooves that store lubricant, trap wear particles, and form a stable bubble layer during friction, thereby reducing friction and wear. The surface of the microtextured layer is covered with a friction-reducing coating made of a low surface energy material, such as silicone or fluorine, to further reduce the coefficient of friction and improve wear resistance.

[0033] The honing head 2 has a feed groove 8 for the honing rod body 1 to extend into;

[0034] A conical head 5 is fixed to the outer side of the insertion end of the honing rod body 1, with the tip of the conical head 5 facing downward. A guide head 3 is provided on the outer side of the honing head 2, and an oilstone 4 is installed inside the guide head 3. A moving groove 14 is opened on the inner side of the feed groove 8, and a push block 15 is slidably installed in the moving groove 14. One end of the push block 15 is connected to a connecting rod 16, and one end of the connecting rod 16 passes through the honing head 2 and is connected to the corresponding guide head 3.

[0035] In the actual operation of this utility model, the honing rod body 1 can be connected to a drive mechanism. The drive mechanism includes a motor that drives the honing rod body 1 to rotate and a cylinder that drives the honing rod body 1 to reciprocate up and down during the rotation process, so that the honing rod body 1 and the conical head 5 rotate and move up and down in the feed groove 8.

[0036] When the conical head 5 moves downward in the feed groove 8, the outer arc surface of the conical head 5 contacts and presses against the upper surface of the feed block 15, causing the feed block 15 to move toward the moving groove 14, and pushing the guide head 3 and the honing stone 4 to extend out, using the extended honing stone 4 to complete the guidance and grinding in the honing process.

[0037] The honing rod body 1 has an oil passage 9 inside, and multiple oil drain holes 10 are provided on the outer side of the honing rod body 1 along the height direction. The multiple oil drain holes 10 are connected to the oil passage 9, so that lubricating oil can be injected into the oil passage 9. The lubricating oil can be discharged from the multiple oil drain holes 10 to lubricate the friction areas at different heights. At the same time, when the honing rod body 1 moves up and down, the movement of the honing rod body 1 can make the entire friction area completely covered by lubricating oil.

[0038] A fixing ring 11 is provided at the top of the honing head 2, and a conical scraper sleeve 12 is provided at the top of the fixing ring 11. A storage groove 13 is provided on the side of the fixing ring 11 near the honing rod body 1. The fixing ring 11 and the conical scraper sleeve 12 are fitted on the outside of the honing rod body 1.

[0039] A first spring 6 is fixedly connected between the bottom end of the honing rod body 1 and the bottom end of the feed groove 8;

[0040] A second spring 7 is connected between the top of the conical head 5 and the inside of the feed groove 8. After the honing rod body 1 moves downward, the first spring 6 acts as a buffer for the honing rod body 1, preventing the honing rod body 1 from directly contacting the feed groove 8 and causing wear.

[0041] Similarly, the second spring 7 can prevent the top of the conical head 5 from colliding directly with the feed groove 8.

[0042] In the actual operation of this utility model, the tip of the conical scraper sleeve 12 is set upward. When the honing rod body 1 extends out of the honing head 2, the lubricating oil adhering to the outside of the honing rod body 1 will be scraped off by the conical scraper sleeve 12 to avoid contact with the outside air and the adhesion of dust. The scraped lubricating oil is stored in the storage tank 13. When the honing rod body 1 extends downward into the honing head 2 again, it can drive the stored lubricating oil into the honing head 2, thereby improving the efficiency of lubricating oil use.

Claims

1. A honed rod surface micro-textured friction reducing coating structure characterized by: include: Honing head (2); Honing rod body (1), the bottom end of which is movably installed inside the honing head (2); Among them, the surface of the honing rod body (1) is provided with a microtextured layer, which has multiple tiny pits or grooves; The surface of the microtextured layer is covered with a friction-reducing coating. The honing rod body (1) has an oil passage (9) inside, and the honing rod body (1) has multiple oil drain holes (10) arranged along the height direction on the outside of the honing rod body (1). The multiple oil drain holes (10) are connected to the oil passage (9). The honing head (2) is provided with a fixing ring (11) at the top end, and a conical scraper sleeve (12) is provided at the top end of the fixing ring (11). A storage groove (13) is provided on the side of the fixing ring (11) near the honing rod body (1).

2. A honed bar surface micro-textured friction reducing coating structure according to claim 1, characterized in that: The fixing ring (11) and the conical scraper sleeve (12) are fitted on the outside of the honing rod body (1).

3. A honed surface micro-textured tribological coating structure according to claim 1, wherein: The honing head (2) has a feed groove (8) for the honing rod body (1) to extend into. A conical head (5) is fixed to the outer side of the extension end of the honing rod body (1), with the tip of the conical head (5) facing downwards.

4. A honed bar surface micro-textured friction reducing coating structure according to claim 3, characterized in that: A first spring (6) is fixedly connected between the bottom end of the honing rod body (1) and the bottom end of the feed groove (8). A second spring (7) is connected between the top of the conical head (5) and the inside of the feed groove (8).

5. A honed surface micro-textured tribological coating structure according to claim 1, wherein: A guide head (3) is provided on the outside of the honing head (2), and an oilstone (4) is installed inside the guide head (3).

6. A honed bar surface micro-textured friction reducing coating structure according to claim 3, wherein: The feed groove (8) has a moving groove (14) on its inner side. A push block (15) is slidably installed in the moving groove (14). One end of the push block (15) is connected to a connecting rod (16). One end of the connecting rod (16) passes through the honing head (2) and is connected to the corresponding guide head (3).

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