Coating milling cutter with self-lubricating function

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a coating milling cutter with a self-lubricating function, and aims to solve the problem that the lubricating effect is influenced by the sputtering of lubricating liquid in the prior art, the coating milling cutter comprises a connecting rod, a fixed block is fixed at the bottom end of the connecting rod, and a cutter bar is connected below the fixed block; a lubricating mechanism is arranged outside the cutter bar; the lubricating mechanism comprises a rotating ring, the rotating ring is arranged on the outer wall of the cutter bar in a sleeving mode, and a sliding groove is formed in the top end of the rotating ring. The connecting cylinder and the penetrating-out rod form a telescopic rod, the abutting shell is elastically pushed through the spring to be attached to the working face, and the rotating ring fixed through the connecting cylinder is rotationally connected with the fixing block through the sliding groove and the sliding block; and the abutting shell enables the lubricating liquid to flow out through a liquid outlet formed in the abutting shell, the situation that the lubricating liquid splashes in the rotating process is avoided by making contact with the cutter bar, and the lubricating effect is affected due to splashing of the lubricating liquid.

Description

Technical Field

[0001] The utility model relates to a coated milling cutter, in particular to a coated milling cutter with a self-lubricating function, belonging to the technical field of milling cutters. Background Art

[0002] Coated milling cutters are manufactured by vapor-depositing a thin layer of wear-resistant refractory metal or non-metallic compound (it can also be applied to superhard inserts such as ceramic, diamond, and cubic boron nitride) onto a strong and tough carbide or high-speed steel (HSS) substrate. The coating acts as a chemical and thermal barrier, reducing diffusion and chemical reactions between the cutter and the workpiece, thereby reducing wear on the substrate.

[0003] In the prior art, there is a high-efficiency coated milling cutter with self-lubricating function disclosed in announcement number CN218396135U. In this milling cutter, four spiral chip removal grooves are arranged in an inward concave manner on the side wall of the milling cutter rod. The grooves are densely covered with liquid leakage micropores. Lubricating liquid is sprayed through the spray holes and the liquid leakage micropores to form a self-lubricating structure, thereby lubricating the entire surface of the milling cutter rod.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned design of a high-efficiency coated milling cutter with self-lubricating function has the following problems: although the milling cutter can be lubricated through the cooperation of components such as spray holes in the existing technology, the milling cutter is in rotation during operation, which may cause the lubricating liquid to splash and detach, and cannot fully fit with the milling cutter, affecting the lubrication effect. In view of this, a coated milling cutter with self-lubricating function is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a coated milling cutter with a self-lubricating function to solve the problem that the lubricating fluid may splash and separate when the milling cutter rotates in the above working state, and cannot fully fit the milling cutter, affecting the lubrication effect.

[0006] The utility model achieves the above-mentioned object through the following technical solutions: A coated milling cutter with a self-lubricating function comprises a connecting rod, a fixing block is fixed to the bottom end of the connecting rod, and a cutter bar is connected below the fixing block, and a lubrication mechanism is provided on the outside of the cutter bar;

[0007] The lubrication mechanism includes a rotating ring, which is sleeved on the outer wall of the knife rod, and a sliding groove is provided at the top of the rotating ring, and a slider is rotatably connected inside the sliding groove. A connecting cylinder is fixed to the bottom end of the rotating ring, and a spring is embedded inside the connecting cylinder. The bottom end of the spring is connected to a penetration rod, and a resistance shell is fixed to the end of the penetration rod that passes through the connecting cylinder, and a liquid outlet is provided on the outer wall of the resistance shell facing the knife rod.

[0008] As a further solution of the present invention: the rotating ring forms a rotating structure through the slider and the fixed block, and the slider and the sliding groove form a sliding structure.

[0009] As a further solution of the present invention: a sliding structure is formed between the penetration rod and the connecting tube, and the connecting tube is fixedly connected to the rotating ring.

[0010] As a further solution of the present invention: a connecting hole is provided on the outer wall of the abutment shell, and a supply mechanism is provided inside the connecting hole.

[0011] As a further solution of the present invention: the supply mechanism includes a first sleeve, the first sleeve passes through the interior of the connecting hole, and a delivery pipe passes through the interior of the first sleeve.

[0012] As a further solution of the present invention: the supply mechanism also includes a second sleeve, which is sleeved on the other axial direction of the conveying pipe, and a connecting shell is inserted into the end of the second sleeve away from the conveying pipe. A groove is provided on the outer wall of the connecting rod corresponding to the position of the connecting shell, and a feed hole is provided inside the groove, and a discharge hole is provided at the bottom end of the knife rod.

[0013] As a further solution of the present invention: the first sleeve is threadedly connected to the connecting hole, and the first sleeve is threadedly connected to the delivery pipe.

[0014] The beneficial effects of the utility model are as follows: the connecting tube and the penetrating rod form a telescopic rod, the spring elasticity pushes the resistance shell to fit the working surface, the rotating ring fixed by the connecting tube is rotatably connected with the fixed block through the slide groove and the slider to avoid mutual limitation affecting the work, the resistance shell allows the lubricating liquid to flow out through the opened liquid outlet, and contacts the cutter rod to avoid splashing during the rotation process, resulting in splashing of the lubricating liquid affecting the lubrication effect; the resistance shell is threadedly connected to the first sleeve through the connecting hole, and the first sleeve and the delivery pipe are threadedly connected for easy disassembly and assembly and supply of replenishing lubricating oil into the resistance shell, the second sleeve is consistent with the first sleeve, and is threadedly connected to the connecting shell, thereby introducing the lubricating liquid into the slot, and enters the connecting rod and the cutter rod through the feed hole, and then flows out from the discharge hole to lubricate the working surface, and the connecting shell and the slot are rotatably connected to avoid the delivery pipe from rotating with it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the rotating ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the penetration rod of the utility model;

[0018] Figure 4This is a schematic diagram of the liquid outlet structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the feed hole structure of the utility model.

[0020] In the figure: 1. connecting rod; 2. fixing block; 3. knife bar; 4. lubrication mechanism; 401. rotating ring; 402. slide groove; 403. slider; 404. connecting cylinder; 405. spring; 406. penetration rod; 407. resistance shell; 408. liquid outlet; 5. connecting hole; 6. supply mechanism; 601. first sleeve; 602. delivery pipe; 603. second sleeve; 604. connecting shell; 605. slot; 606. feed hole; 607. discharge hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0022] like Figures 1 to 5 As shown, a coated milling cutter with a self-lubricating function includes a connecting rod 1, a fixed block 2 is fixed to the bottom end of the connecting rod 1, a tool rod 3 is connected to the bottom of the fixed block 2, and a lubricating mechanism 4 is provided on the outside of the tool rod 3; the lubricating mechanism 4 includes a rotating ring 401, the rotating ring 401 is sleeved on the outer wall of the tool rod 3, a sliding groove 402 is provided on the top of the rotating ring 401, a slider 403 is rotatably connected to the inside of the sliding groove 402, a connecting tube 404 is fixed to the bottom end of the rotating ring 401, a spring 405 is embedded in the inside of the connecting tube 404, and the bottom end of the spring 405 is connected to a penetrating rod 406, and a resistance shell 407 is fixed to the end of the penetrating rod 406 that passes through the connecting tube 404, and the resistance shell 407 is provided with a liquid outlet 408 on the outer wall of the tool rod 3. The rotating ring 401 forms a rotating structure between the slider 403 and the fixed block 2, a sliding structure is formed between the slider 403 and the slide groove 402, a sliding structure is formed between the penetrating rod 406 and the connecting tube 404, and the connecting tube 404 is fixedly connected to the rotating ring 401; the connecting tube 404 and the penetrating rod 406 form a telescopic rod, and the spring 405 elastically pushes the resistance shell 407 to fit the working surface. The rotating ring 401 fixed by the connecting tube 404 is rotatably connected to the fixed block 2 through the slide groove 402 and the slider 403 to avoid mutual limitation affecting the work. The resistance shell 407 allows the lubricating liquid to flow out through the opened liquid outlet 408 and contact the knife rod 3 to avoid splashing during the rotation process, which causes the lubricating liquid to splash and affect the lubrication effect. Example 2

[0023] In addition to all the technical features of the first embodiment, the present embodiment also includes: a connecting hole 5 is provided on the outer wall of the resistance shell 407, a feeding mechanism 6 is provided inside the connecting hole 5, the feeding mechanism 6 includes a first sleeve 601, the first sleeve 601 passes through the interior of the connecting hole 5, a delivery pipe 602 passes through the interior of the first sleeve 601, the feeding mechanism 6 also includes a second sleeve 603, the second sleeve 603 is sleeved on the other axial direction of the delivery pipe 602, the end of the second sleeve 603 away from the delivery pipe 602 is penetrated by a connecting shell 604, a slot 605 is provided on the outer wall of the connecting rod 1 at a position corresponding to the connecting shell 604, a feed hole 606 is provided inside the slot 605, and the bottom of the knife rod 3 A discharge hole 607 is opened at the end, the first sleeve 601 is threadedly connected to the connecting hole 5, and the first sleeve 601 is threadedly connected to the delivery pipe 602; the conflict shell 407 is threadedly connected to the first sleeve 601 through the connecting hole 5, and the first sleeve 601 and the delivery pipe 602 are threadedly connected for easy disassembly and assembly and supply of supplementary lubricating oil into the conflict shell 407. The second sleeve 603 is consistent with the first sleeve 601 and is threadedly connected to the connecting shell 604, thereby introducing the lubricating liquid into the slot 605, and enters the connecting rod 1 and the knife rod 3 through the feed hole 606, and then flows out from the discharge hole 607 to lubricate the working surface. The connecting shell 604 and the slot 605 are rotatably connected to prevent the delivery pipe 602 from rotating with it.

[0024] Working principle: The milling cutter is composed of a connecting rod 1, a fixed block 2 and a cutter bar 3. The fixed block 2 is rotatably connected to the rotating ring 401 through a slider 403 and a slide groove 402. The connecting tube 404, a spring 405 and a penetration rod 406 form a telescopic rod, so that the contact shell 407 contacts the object, and the cutter bar 3 performs the drilling operation. At the same time, the spring 405 elastically contracts and adjusts the position according to the drilling depth of the cutter bar 3, so that the lubricating liquid inside the contact shell 407 can always fit the cutter bar 3 and pass through the liquid outlet 408 to avoid splashing. The resistance shell 407 is threadedly connected to the first sleeve 601 through the connecting hole 5, and the first sleeve 601 is threadedly connected to the delivery pipe 602, so as to introduce lubricating fluid for replenishment. At the same time, the delivery pipe 602 is connected to the connecting shell 604 through the second sleeve 603. The lubricating fluid enters the slot 605 through the feed hole 606 and enters the inside of the connecting rod 1 and the cutter rod 3 and flows out from the discharge hole 607 around the drilling working point for lubrication. At the same time, it is rotatably connected to the connecting shell 604 through the slot 605, which can prevent the connecting shell 604 from rotating under the limit of the delivery pipe 602.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A coated milling cutter with a self-lubricating function, comprising a connecting rod (1), characterized in that: A fixing block (2) is fixed to the bottom end of the connecting rod (1), and a knife rod (3) is connected below the fixing block (2), and a lubrication mechanism (4) is provided on the outside of the knife rod (3); The lubricating mechanism (4) includes a rotating ring (401), the rotating ring (401) is sleeved on the outer wall of the knife rod (3), and a sliding groove (402) is provided at the top of the rotating ring (401), the interior of the sliding groove (402) is rotatably connected to a slider (403), the bottom end of the rotating ring (401) is fixed with a connecting tube (404), and the interior of the connecting tube (404) is embedded with a spring (405), the bottom end of the spring (405) is connected to a penetration rod (406), and a resistance shell (407) is fixed to one end of the penetration rod (406) that penetrates the connecting tube (404), and the resistance shell (407) is provided with a liquid outlet (408) facing the outer wall of the knife rod (3).

2. The self-lubricating coated milling cutter according to claim 1, characterized in that: The rotating ring (401) forms a rotating structure with the slider (403) and the fixed block (2), and the slider (403) forms a sliding structure with the sliding groove (402).

3. The self-lubricating coated milling cutter according to claim 1, characterized in that: A sliding structure is formed between the penetration rod (406) and the connecting cylinder (404), and the connecting cylinder (404) is fixedly connected to the rotating ring (401).

4. The self-lubricating coated milling cutter according to claim 1, characterized in that: A connection hole (5) is provided on the outer wall of the resistance shell (407), and a supply mechanism (6) is provided inside the connection hole (5).

5. The self-lubricating coated milling cutter according to claim 4, characterized in that: The supply mechanism (6) comprises a first sleeve (601), the first sleeve (601) passes through the interior of the connecting hole (5), and a delivery pipe (602) passes through the interior of the first sleeve (601).

6. The self-lubricating coated milling cutter according to claim 5, characterized in that: The feeding mechanism (6) further comprises a second sleeve (603), the second sleeve (603) being sleeved on the other axial direction of the conveying pipe (602), and a connecting shell (604) being inserted into the end of the second sleeve (603) away from the conveying pipe (602), a slot (605) being provided on the outer wall of the connecting rod (1) at a position corresponding to the connecting shell (604), and a feed hole (606) being provided inside the slot (605), and a discharge hole (607) being provided at the bottom end of the knife rod (3).

7. The self-lubricating coated milling cutter according to claim 5, characterized in that: The first sleeve (601) is threadedly connected to the connecting hole (5), and the first sleeve (601) is threadedly connected to the delivery pipe (602).

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