Unequal spiral four-edge flat-end milling cutter

Abstract

The utility model discloses an unequal spiral four-blade flat-end milling cutter which comprises a driving rod, a milling cutter rod and a bottom blade, a mounting groove is formed in the driving rod, the milling cutter rod is arranged in the mounting groove, a plurality of positioning grooves are formed in the outer wall of the milling cutter rod, movable grooves are formed in the two sides of the driving rod, and the bottom blade is arranged in the movable grooves. According to the device, the sliding block moves in the sliding rail, so that the rigid spring is shrunk, the positioning block retracts into the movable groove, then the milling cutter rod moves in the movable groove, and then the milling cutter rod moves in the movable groove, so that the milling cutter rod moves in the movable groove, and then the milling cutter rod moves in the movable groove, so that the milling cutter rod moves in the movable groove, and the milling cutter rod moves in the movable groove. After the milling cutter bar is inserted into a proper position in the mounting groove, the guide rod can be loosened, and the positioning block is inserted into the milling cutter bar under the action of the rigid spring, so that the position of the milling cutter bar in the mounting groove is fixed, and the milling cutter bar is convenient to mount and fix.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to an unequal spiral four-edge flat-end milling cutter. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. A fillet milling cutter is a shovel-tooth forming milling cutter with concave cutting edges on one or both sides, which is used for chamfering corners.

[0003] Patent No.: CN 215941624 U. The utility model discloses an unequally indexed fillet milling cutter, including a cutter head and a main rod, a slot is provided on the side of the main rod close to the cutter head, and push plates are provided on the inner walls of both sides of the slot, a plurality of triangular plugs are fixedly connected to one side of the push plate, and the other side of the push plate movably passes through the slot and extends into the main rod, and a linkage rod is fixedly connected to the side of the push plate passing through the slot, and an inclined plate is fixedly connected to the end of the linkage rod away from the push plate. This unequally indexed fillet milling cutter can be disassembled and replaced by separately providing a cutter head and a main rod, is convenient to use and stable to install, greatly improves the convenience of disassembly and assembly of the equipment, and improves the applicability of the equipment, and controls the two inclined plates to approach or move away from each other by providing a threaded rod, so as to achieve the purpose of adjusting the distance between the two push plates, and a telescopic sleeve is provided between the push plate and the inner wall of the main rod to limit the movable path of the push plate.

[0004] However, the unequal spiral four-edge flat-head milling cutter has the following problems during use: the traditional installation position of the milling cutter and the equipment is between the tool rod, and this installation method does not conform to the existing installation direction. In addition, when the milling cutter is installed with the external equipment, it is not convenient to adjust the length of the milling cutter, and it cannot meet the diversified market demands. Utility Model Content

[0005] The utility model aims to provide an unequal spiral four-edge flat head milling cutter to solve the related problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an unequal spiral four-edge flat-head milling cutter, comprising an active rod, a milling rod and a bottom blade, the active rod is provided with a mounting groove inside, and the mounting groove is provided with a milling rod, and the outer wall of the milling rod is provided with a plurality of positioning grooves, movable grooves are provided inside both sides of the active rod, and a limiting mechanism is provided inside the movable groove to limit the position of the milling rod in the mounting groove, the outer wall of the milling rod is provided with a bottom blade, and the bottom end of the bottom blade is provided with a flat angle block.

[0007] The technical solution provides an unequal spiral four-edge flat head milling cutter, wherein the bottom edge slotting parameters are a back engraving diameter of 10.6 mm ± 0.15 and a core thickness of 7.2 mm ± 0.1.

[0008] The technical solution provides an unequal spiral four-edge flat-head milling cutter, the limiting mechanism includes a moving block and a slide rail, the moving block is arranged inside the movable groove, and a positioning block penetrating the positioning groove is installed on the outer wall of the moving block, and a guide rod penetrating the movable groove is installed on the side of the moving block away from the positioning block.

[0009] The technical solution provides an unequal spiral four-edge flat-end milling cutter, wherein the outer wall of the guide rod is sleeved with a rigid spring, and the two sides of the rigid spring are respectively in contact with the inner wall of the moving block and the movable groove.

[0010] The technical solution provides an unequal spiral four-edge flat-head milling cutter, wherein the inner wall of the movable groove is installed with a slide rail, the outer wall of the movable block is hinged with a support rod, and the bottom end of the support rod is hinged with a slider that is adapted to the inside of the slide rail, and the outer wall of the slider is installed with a rubber block that rubs against the inside of the slide rail.

[0011] Compared with the prior art, the utility model provides an unequal spiral four-edge flat head milling cutter, which has the following beneficial effects:

[0012] 1. The utility model moves the slider in the slide rail, so that the rigid spring is tightened, and then the positioning block is retracted into the movable groove. Then, after the milling cutter rod is inserted into the installation groove at a suitable position, the guide rod can be loosened, and the positioning block is inserted into the milling cutter rod under the action of the rigid spring itself, thereby fixing the milling cutter rod at the installation groove, which is convenient for installing and fixing the milling cutter rod.

[0013] 2. The utility model adjusts the position of the milling cutter rod by moving the milling cutter rod up and down in the installation groove, thereby adjusting the installation length of the milling cutter rod in the active rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A is an enlarged structural diagram of FIG.

[0016] In the figure: 1. active rod; 2. mounting groove; 3. milling cutter rod; 4. positioning groove; 5. bottom blade; 6. flat angle block; 7. movable groove; 8. moving block; 9. positioning block; 10. guide rod; 11. rigid spring; 12. slide rail; 13. slider; 14. rubber block; 15. support rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1, as Figure 1-2 As shown, the utility model provides a technical solution: an unequal spiral four-edge flat-head milling cutter, comprising an active rod 1, a milling rod 3 and a bottom blade 5, a mounting groove 2 is provided inside the active rod 1, and the milling rod 3 is arranged inside the mounting groove 2, and the outer wall of the milling rod 3 is provided with a plurality of positioning grooves 4, movable grooves 7 are provided inside both sides of the active rod 1, and a limiting mechanism for limiting the position of the milling rod 3 in the mounting groove 2 is arranged inside the movable groove 7, the outer wall of the milling rod 3 is provided with a bottom blade 5, and the bottom end of the bottom blade 5 is provided with a flat angle block 6, the groove parameters of the bottom blade 5 are a back diameter of 10.6mm±0.15, a core thickness of 7.2mm±0.1, the limiting mechanism comprises a moving block 8 and a slide rail 12, a moving block 8 is provided inside the movable groove 7, and a positioning block 9 penetrating the positioning groove 4 is installed on the outer wall of the moving block 8, a guide rod 10 penetrating the movable groove 7 is installed on the side of the moving block 8 away from the positioning block 9, and the guide rod 10 is provided with a guide rod 10 penetrating the movable groove 7. The outer wall is sleeved with a rigid spring 11, and the two sides of the rigid spring 11 are respectively fitted with the inner walls of the moving block 8 and the movable groove 7. The inner wall of the movable groove 7 is installed with a slide rail 12. The outer wall of the moving block 8 is hinged with a support rod 15, and the bottom end of the support rod 15 is hinged with a slider 13 that is adapted to the inside of the slide rail 12. The outer wall of the slider 13 is installed with a rubber block 14 that rubs against the inside of the slide rail 12. The operator fixes the milling cutter rod 3 in the active rod 1, and the moving block 8 can be driven to drive the slider 13 to move in the slide rail 12 by pulling the guide rod 10, so that the rigid spring 11 is tightened, and then the positioning block 9 is retracted into the movable groove 7. Then, after the milling cutter rod 3 is inserted into the installation groove 2 at a suitable position, the guide rod 10 can be loosened, and the positioning block 9 is inserted into the milling cutter rod 3 under the action of the rigid spring 11 itself, so that the milling cutter rod 3 is fixed in the installation groove 2, which is convenient for installing and fixing the milling cutter rod 3.

[0019] Working principle: First, the operator needs to fix the milling cutter rod 3 in the active rod 1. The operator pulls the guide rod 10 to drive the moving block 8 to drive the slider 13 to move in the slide rail 12, so that the rigid spring 11 is tightened, and then the positioning block 9 is retracted into the movable groove 7. Then, after the milling cutter rod 3 is inserted into the installation groove 2 at a suitable position, the guide rod 10 can be loosened. Under the action of the rigid spring 11 itself, the positioning block 9 is inserted into the milling cutter rod 3, and then the position of the milling cutter rod 3 at the installation groove 2 is fixed, which is convenient for installing and fixing the milling cutter rod 3. The guide rod 10 drives the moving block 8 to drive the slider 13 to move in the slide rail 12, which can improve stability.

[0020] When the position of the milling cutter rod 3 in the installation groove 2 needs to be adjusted, just pull the guide rod 10, and perform the above steps to move the milling cutter rod 3 up and down in the installation groove 2 to adjust the position, and then adjust the installation length of the milling cutter rod 3 in the active rod 1.

[0021] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An unequal spiral four-edge flat-end milling cutter, comprising an active rod (1), a milling cutter rod (3) and a bottom blade (5), characterized in that: The active rod (1) is provided with a mounting groove (2), a milling cutter rod (3) is arranged inside the mounting groove (2), and a plurality of positioning grooves (4) are arranged on the outer wall of the milling cutter rod (3). Movable grooves (7) are provided inside both sides of the active rod (1), and a limiting mechanism for limiting the position of the milling cutter rod (3) in the mounting groove (2) is arranged inside the movable groove (7). The outer wall of the milling cutter rod (3) is provided with a bottom blade (5), and a flat angle block (6) is arranged at the bottom end of the bottom blade (5).

2. The unequal spiral four-edge flat head milling cutter according to claim 1, characterized in that: The groove parameters of the bottom blade (5) are a back diameter of 10.6 mm ± 0.15 and a core thickness of 7.2 mm ± 0.

1.

3. The unequal spiral four-edge flat head milling cutter according to claim 1, characterized in that: The limiting mechanism comprises a moving block (8) and a slide rail (12); the moving block (8) is arranged inside the movable groove (7); a positioning block (9) penetrating the positioning groove (4) is installed on the outer wall of the moving block (8); and a guide rod (10) penetrating the movable groove (7) is installed on the side of the moving block (8) away from the positioning block (9).

4. The unequal spiral four-edge flat head milling cutter according to claim 3, characterized in that: The outer wall of the guide rod (10) is sleeved with a rigid spring (11), and two sides of the rigid spring (11) are respectively in contact with the inner walls of the moving block (8) and the movable groove (7).

5. The unequal spiral four-edge flat head milling cutter according to claim 3, characterized in that: The inner wall of the movable groove (7) is installed with a slide rail (12), the outer wall of the movable block (8) is hinged with a support rod (15), and the bottom end of the support rod (15) is hinged with a slider (13) adapted to the inside of the slide rail (12), and the outer wall of the slider (13) is installed with a rubber block (14) that rubs against the inside of the slide rail (12).

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