Novel stepped round nose knife
The stair-step circular nose cutter design enables efficient and cost-effective component replacement by securing cutter parts with screws, addressing blade breakage issues and reducing maintenance time and costs.
Patent Information
- Application Number
- CN202422314048.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-23
AI Technical Summary
When replacing a traditional round nose cutter, the milling machine fixing disc needs to be removed, resulting in low replacement efficiency and high cost.
The fixing screw and step milling cutter mechanism are adopted to achieve a stable connection through the fixing screw through the insertion rod of the tool holder, tool holder and tool head, making it easier to replace the tool holder, tool holder and tool head separately.
Improve the replacement efficiency of round nose knife and reduce the cost of use.
Smart Images
Figure CN223098097U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of milling cutters, in particular to a novel stepped round nose cutter. Background Technique
[0002] A round nose cutter refers to a tool whose length of the arc part is greater than 1 / 4 of the circle. During the machining process, the cutting edge of the round nose cutter will be damaged due to chip removal, which will affect the chip removal efficiency and chip removal quality of the round nose cutter, and then the round nose cutter needs to be replaced.
[0003] However, when replacing the traditional round nose cutter, it is necessary to open the fixed disk of the milling machine. Disassembling the whole round nose cutter not only reduces the replacement efficiency, but also increases the replacement cost. Content of the Utility Model
[0004] In view of the deficiencies of the prior art, the utility model provides a novel stepped round nose cutter, which solves the problems put forward in the above background technique.
[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A novel stepped round nose cutter includes a fixed mounting rod, the upper end of the fixed mounting rod is fixedly connected with a fixed seat, the upper end surface of the fixed seat is provided with a mounting groove, a stepped milling cutter mechanism is arranged at the upper end of the mounting groove, the stepped milling cutter mechanism is arranged in matching butt joint with the mounting groove, flat grooves are opened on both sides of the fixed seat, a fixed nut is fixedly connected to one of the flat grooves, a fixed screw rod passes through the other flat groove, the fixed screw rod is in threaded connection with the fixed nut, and the fixed screw rod passes through the stepped milling cutter mechanism.
[0006] Further, the stepped milling cutter mechanism includes: a cutter seat, a cutter rod and a cutter head. The cutter seat, the cutter rod and the cutter head are arranged in a stepped manner. The lower end of the cutter seat is fixedly connected with a first insertion rod, the lower end of the cutter rod is fixedly connected with a second insertion rod, the lower end of the cutter head is fixedly connected with a third insertion rod. The first insertion rod is inserted into the mounting groove, the second insertion rod is inserted into the first insertion rod, the third insertion rod is inserted into the second insertion rod, and the lower ends of the first insertion rod, the second insertion rod and the third insertion rod are flush. Through holes are opened on the first insertion rod, the second insertion rod and the third insertion rod located in the mounting groove, and the fixed screw rod passes through the through holes of the first insertion rod, the second insertion rod and the third insertion rod.
[0007] Further, limiting blocks are fixedly connected to the lower ends of the cutter seat, the cutter rod and the cutter head, and limiting grooves are opened at the upper ends of the cutter seat and the cutter rod. The limiting blocks are arranged in matching with the limiting grooves.
[0008] Further, the fixed nut and the flat groove are connected by welding.
[0009] Furthermore, the number of the fixing screws is two, and they are vertically arranged on the planar groove.
[0010] Furthermore, the fixing screws are of an embedded hexagon type.
[0011] Compared with the above-mentioned background art, the novel stepped round nose cutter provided by the present application includes a round nose cutter with very mature technology nowadays, and a fixing screw and a stepped milling cutter mechanism as the core components. Its principle relies on the fixing effect achieved by passing the fixing screws through the first insertion rod, the second insertion rod and the third insertion rod at the lower ends of the tool holder, the tool shank and the tool head, which facilitates the replacement of the tool holder, the tool shank and the tool head.
[0012] The present utility model provides a novel stepped round nose cutter. Compared with the prior art, it has the following beneficial effects:
[0013] For the novel stepped round nose cutter, by arranging the fixing screws and the stepped milling cutter mechanism, the fixing screws can fix the tool holder, the tool shank and the tool head on the fixing base, and can separately extract the tool holder, the tool shank and the tool head for replacement, improving the replacement efficiency and saving the use cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the whole of the present utility model;
[0015] Figure 2 It is a schematic structural diagram of the planar groove and the fixing nut of the present utility model;
[0016] Figure 3 It is a schematic structural diagram of the stepped milling cutter mechanism of the present utility model when unfolded;
[0017] Figure 4 It is a schematic cross-sectional structural diagram of the stepped milling cutter mechanism of the present utility model;
[0018] Figure 5 It is Figure 4 an enlarged schematic structural diagram of part A in
[0019] In the figure: 1, fixed mounting rod; 2, fixing base; 3, tool holder; 4, tool shank; 5, tool head; 6, planar groove; 7, fixing nut; 8, fixing screw; 9, limiting block; 10, first insertion rod; 11, second insertion rod; 12, third insertion rod; 13, mounting groove; 14, perforation; 15, limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a new type of stepped round nose cutter, including a fixed mounting rod 1. The upper end of the fixed mounting rod 1 is fixedly connected with a fixed seat 2. An installation groove 13 is opened on the upper end surface of the fixed seat 2. A stepped milling cutter mechanism is arranged at the upper end of the installation groove 13. The stepped milling cutter mechanism is arranged in a matching and docking manner with the installation groove 13. Plane grooves 6 are opened on both sides of the fixed seat 2. A fixed nut 7 is fixedly connected to one of the plane grooves 6. A fixed screw 8 passes through the other plane groove 6. The fixed screw 8 is threadedly connected with the fixed nut 7 and passes through the stepped milling cutter mechanism; the fixed mounting rod 1 is installed on a milling machine. A fixed seat 2 is fixed at the end of the fixed mounting rod 1. An installation groove 13 is opened on the end surface of the fixed seat 2. A stepped milling cutter mechanism is arranged in the installation groove 13. The stepped milling cutter mechanism can be disassembled from the fixed seat 2. Specifically, by removing the fixed screw 8 from the fixed nut 7, and then, after removing the fixed screw 8, the stepped milling cutter mechanism can be disassembled and replaced. This can facilitate the replacement of the end of the milling cutter, and then there is no need to remove the fixed mounting rod 1 from the milling machine, and the operation is convenient and fast.
[0022] As Figure 3As shown, the step milling cutter mechanism includes: a tool holder 3, a tool rod 4 and a tool head 5, the tool holder 3, the tool rod 4 and the tool head 5 are arranged in a step-like manner, the lower end of the tool holder 3 is fixedly connected with a first plug rod 10, the lower end of the tool rod 4 is fixedly connected with a second plug rod 11, the lower end of the tool head 5 is fixedly connected with a third plug rod 12, the first plug rod 10 is inserted in the installation groove 13, the second plug rod 11 is inserted in the first plug rod 10, the third plug rod 12 is inserted in the second plug rod 11, and the lower ends of the first plug rod 10, the second plug rod 11 and the third plug rod 12 are arranged flush, the first plug rod 10, the second plug rod 11 and the third plug rod 12 located in the installation groove 13 are provided with a through hole 14, and the fixing screw 8 is arranged through the through hole 14 of the first plug rod 10, the second plug rod 11 and the third plug rod 12; the tool holder 3, the tool rod 4 The first, second and third plug rods 10, 11 and 12 are respectively fixed to the lower ends of the tool holder 3, the tool rod 4 and the tool head 5, and the first, second and third plug rods 10, 11 and 12 can be respectively inserted and arranged. Specifically, the third plug rod 12 is inserted into the second plug rod 11, the second plug rod 11 is inserted into the first plug rod 10, and the first plug rod 10 is inserted into the installation groove 13. Then, the fixing screw 8 is passed through the through holes 14 of the first, second and third plug rods 10, 11 and 12, and then the end of the fixing screw 8 is threadedly connected with the fixing nut 7. The tool holder 3, tool rod 4 and tool head 5 arranged in a stacked manner can be replaced in a targeted manner according to the situation of tooth collapse, which further facilitates the replacement of the tool holder 3, tool rod 4 and tool head 5, improves replacement efficiency and saves use cost.
[0023] like Figure 4 As shown, the lower ends of the tool holder 3, the tool rod 4 and the tool head 5 are fixedly connected to the limiting block 9, and the upper ends of the tool holder 3 and the tool rod 4 are provided with a limiting groove 15, and the limiting block 9 is matched with the limiting groove 15; when the tool holder 3, the tool rod 4 and the tool head 5 are superimposed on each other, the limiting block 9 is matched with the limiting groove 15 for plugging, so that the tool holder 3, the tool rod 4 and the tool head 5 can form a stable support through the limiting block 9 and the limiting groove 15 when they rotate.
[0024] like Figure 2 and Figure 3 As shown, the fixing nut 7 and the plane groove 6 are connected by welding, and there are two fixing screws 8, which are vertically arranged on the plane groove 6, and the fixing screws 8 are embedded hexagonal. The connection between the fixing nut 7 and the plane groove 6 is connected by welding, which can make the fixing of the fixing nut 7 more stable, and the fixing screws 8 are vertically arranged on the plane groove 6 up and down, which can further stabilize the fixation. At the same time, the fixing screws 8 are embedded hexagonal, which can avoid slipping angles and facilitate rotation during rotation.
[0025] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A new type of stepped round nose cutter, comprising a fixed mounting rod (1), characterized in that, The upper end of the fixed mounting rod (1) is fixedly connected with a fixed seat (2). An installation groove (13) is formed on the upper end surface of the fixed seat (2). A stepped milling cutter mechanism is arranged at the upper end of the installation groove (13). The stepped milling cutter mechanism is arranged in a matching and docking manner with the installation groove (13). Plane grooves (6) are formed on both sides of the fixed seat (2). A fixing nut (7) is fixedly connected to one of the plane grooves (6). A fixing screw rod (8) penetrates through the other plane groove (6). The fixing screw rod (8) is in threaded connection with the fixing nut (7), and the fixing screw rod (8) penetrates through the stepped milling cutter mechanism.
2. The novel stepped round nose cutter according to claim 1, characterized in that, The stepped milling cutter mechanism includes: a cutter seat (3), a cutter rod (4) and a cutter head (5). The cutter seat (3), the cutter rod (4) and the cutter head (5) are arranged in a stepped manner. A first insertion rod (10) is fixedly connected to the lower end of the cutter seat (3). A second insertion rod (11) is fixedly connected to the lower end of the cutter rod (4). A third insertion rod (12) is fixedly connected to the lower end of the cutter head (5). The first insertion rod (10) is inserted and arranged in the installation groove (13). The second insertion rod (11) is inserted and arranged inside the first insertion rod (10). The third insertion rod (12) is inserted and arranged inside the second insertion rod (11). And the lower ends of the first insertion rod (10), the second insertion rod (11) and the third insertion rod (12) are flush. Through holes (14) are formed on the first insertion rod (10), the second insertion rod (11) and the third insertion rod (12) located in the installation groove (13). The fixing screw rod (8) penetrates through the through holes (14) of the first insertion rod (10), the second insertion rod (11) and the third insertion rod (12).
3. A novel stepped round nose cutter according to claim 2, characterized in that, Limit blocks (9) are fixedly connected to the lower ends of the cutter seat (3), the cutter rod (4) and the cutter head (5). Limit grooves (15) are formed at the upper ends of the cutter seat (3) and the cutter rod (4). The limit blocks (9) are arranged in a matching manner with the limit grooves (15).
4. A novel stepped round nose cutter according to claim 2, characterized in that, The fixing nut (7) and the plane groove (6) are connected by welding.
5. A novel stepped round nose cutter according to claim 2, characterized in that The number of the fixing screw rods (8) is two, and they are vertically arranged on the plane groove (6).
6. The novel stepped round nose cutter according to claim 2, characterized in that, The fixing screw rod (8) is of an embedded hexagonal type.