Milling cutter with cutting edge convenient to replace

Abstract

The utility model relates to the technical field of milling cutters, in particular to a milling cutter with a blade convenient to replace, which is characterized in that a positioning screw is arranged on the end face of a milling cutter head, a containing groove is formed in the side face of the milling cutter head, a positioning groove is formed in the surface of the containing groove, a groove is formed in the surface of a milling cutter handle, a bearing is arranged in the groove, a bottom plate is arranged on the surface of the bearing, and a moving plate is arranged in the bottom plate. A limiting plate is arranged on the side face of the movable plate, and a positioning rod is arranged on the side face of the fixed plate. The milling cutter has the beneficial effects that when the milling cutter head is seriously abraded or fractured during use, firstly, the limiting plate can be directly pulled to be separated from the clamping groove, then the positioning plate can be pulled, the fixing plate can be driven to move, the positioning rod can be pulled out of the positioning groove, and then the milling cutter head is fixed. And then the damaged milling cutter head can be screwed out of the milling cutter handle to be replaced, so that the intact milling cutter handle does not need to be replaced, and the unnecessary waste problem is reduced.

Description

Technical Field

[0001] The utility model relates to the field of milling cutters, in particular to a milling cutter with an easy-to-replace blade. Background Art

[0002] A milling cutter is a rotary cutting tool used for metal cutting and is widely used in the machinery manufacturing industry. It is primarily used to create various shapes on workpieces, such as flat surfaces, grooves, profiles, and holes. Milling cutters are typically mounted on milling machines, but can also be used on machining centers or other machine tools with appropriate spindles and clamping devices.

[0003] However, the milling cutter head and the milling cutter shank in the prior art are integrally connected. Therefore, when the milling cutter head is worn out due to long-term use or the milling cutter head is broken, the entire milling cutter needs to be replaced, resulting in unnecessary economic waste. For this reason, the present invention proposes a milling cutter with easy replacement of the blade to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of the present invention is to provide a milling cutter with an easy-to-replace blade, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a milling cutter with easy blade replacement, the milling cutter with easy blade replacement comprising: a milling cutter head, a positioning screw provided on the end face of the milling cutter head, a receiving groove provided on the side face of the milling cutter head, and a positioning groove provided on the surface of the receiving groove;

[0006] A milling cutter handle, wherein a groove is provided on the surface of the milling cutter handle, a bearing is provided in the groove, a bottom plate is provided on the surface of the bearing, a movable plate is provided in the bottom plate, and a limit plate is provided on the side of the movable plate;

[0007] A fixed plate, a positioning rod is provided on the side of the fixed plate, and a positioning plate is provided on the end surface of the fixed plate.

[0008] Preferably, the positioning screw is fixedly connected to the end face of the milling cutter head, and two groups of receiving grooves are provided, and the two groups of receiving grooves are symmetrically distributed about the milling cutter head.

[0009] Preferably, the groove is an annular plate structure, the inner ring surface of the bearing is fixedly connected to the surface of the groove, the base plate is fixedly connected to the outer ring surface of the bearing, and a threaded groove is provided on the end face of the milling cutter shank, and the positioning screw can be screwed into the threaded groove.

[0010] Preferably, a placement groove is provided on the side of the milling cutter handle, and the fixing plate and the positioning plate can be displaced in the placement groove, and a mounting groove is provided on the side of the base plate.

[0011] Preferably, a support rod is provided on the end face of the mounting groove, a limit spring is sleeved on the surface of the support rod, the movable plate is sleeved on the support rod, and the movable plate can be displaced along the support rod. One end of the limit spring is fixedly connected to the end face of the mounting groove, and the other end of the limit spring is fixedly connected to the side face of the movable plate.

[0012] Preferably, a slot is provided on the side of the positioning plate, and the limit plate can be inserted into the slot. A guide rod is provided on the surface of the bottom plate, and a positioning nut is screwed on one end of the guide rod. The positioning plate is sleeved on the guide rod, and the positioning plate can be displaced along the guide rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The milling cutter provided by the present invention is easy to replace the blade. When the milling cutter head is severely worn or broken during use, the limiting plate can be directly pulled to disengage the limiting plate from the slot. Then the positioning plate can be pulled to drive the fixing plate to move, and the positioning rod can be drawn out of the positioning slot. Then, the damaged milling cutter head can be screwed out of the milling cutter handle for replacement, thereby eliminating the need to replace the intact milling cutter handle and reducing unnecessary waste. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the milling cutter head of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the milling cutter handle of the utility model;

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

[0019] Figure 5 This is a schematic diagram of the structure of the milling cutter handle of the utility model when it is tilted;

[0020] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0021] Figure: 1, milling cutter head; 2, positioning screw; 3, storage slot; 4, positioning slot; 5, milling cutter handle; 6, groove; 7, bearing; 8, bottom plate; 9, movable plate; 10, limit plate; 11, fixed plate; 12, positioning rod; 13, positioning plate; 14, threaded groove; 15, placement slot; 16, mounting slot; 17, support rod;

[0022] 18. Limit spring; 19. Slot; 20. Guide rod; 21. Positioning nut. DETAILED DESCRIPTION

[0023] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit 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.

[0024] Example 1: Please refer to Figures 1-6 The utility model provides a technical solution: a milling cutter with easy blade replacement, the milling cutter with easy blade replacement comprises: a milling cutter head 1, a positioning screw 2 is provided on the end surface of the milling cutter head 1, a receiving groove 3 is opened on the side of the milling cutter head 1, and a positioning groove 4 is opened on the surface of the receiving groove 3;

[0025] A milling cutter handle 5 is provided with a groove 6 on the surface of the milling cutter handle 5, a bearing 7 is provided in the groove 6, a bottom plate 8 is provided on the surface of the bearing 7, a movable plate 9 is provided in the bottom plate 8, and a limit plate 10 is provided on the side of the movable plate 9;

[0026] A fixing plate 11, a positioning rod 12 is provided on the side of the fixing plate 11, and a positioning plate 13 is provided on the end surface of the fixing plate 11;

[0027] When the milling cutter head 1 is severely worn or broken during use, the limit plate 10 can be directly pulled out of the slot 19, and then the positioning plate 13 can be pulled to drive the fixing plate 11 to move, and the positioning rod 12 can be pulled out of the positioning slot 4. Then, the damaged milling cutter head 1 can be screwed out of the milling cutter shank 5 for replacement, so that there is no need to replace the intact milling cutter shank 5, reducing unnecessary waste.

[0028] Example 2: On the basis of Example 1, in order to facilitate the connection between the milling cutter head 1 and the milling cutter shank 5, a positioning screw 2 is provided, the positioning screw 2 is fixedly connected to the end face of the milling cutter head 1, two groups of receiving grooves 3 are provided, and the two groups of receiving grooves 3 are symmetrically distributed about the milling cutter head 1. The groove 6 has an annular plate structure, the inner ring surface of the bearing 7 is fixedly connected to the surface of the groove 6, and the bottom plate 8 is fixedly connected to the outer ring surface of the bearing 7. The end face of the milling cutter shank 5 is provided with a threaded groove 14, and the positioning screw 2 can be screwed into the threaded groove 14;

[0029] When in use, first screw one end of the positioning screw 2 into the threaded groove 14, so that the milling head 1 and the milling cutter handle 5 can be preliminarily connected, and then the positioning rod 12 is set on the inner side of the fixing plate 11 and inserted into the positioning groove 4, so that the milling head 1 can be limited to avoid the problem of rotation of the milling cutter head 1 during use. The setting of the bearing 7 can facilitate the rotation of the fixing plate 11 and facilitate the insertion of the positioning rod 12 into the positioning groove 4.

[0030] Embodiment 3: On the basis of embodiment 2, in order to facilitate the disassembly of the milling cutter head 1, a limit plate 10 is provided, a placement groove 15 is provided on the side of the milling cutter handle 5, the fixed plate 11 and the positioning plate 13 can be displaced in the placement groove 15, a mounting groove 16 is provided on the side of the bottom plate 8, and a support rod 17 is provided on the end face of the mounting groove 16. A limit spring 18 is sleeved on the surface of the support rod 17, and the movable plate 9 can be displaced along the support rod 17. One end of the limit spring 18 is fixedly connected to the end face of the mounting groove 16, and the other end of the limit spring 18 is fixedly connected to the side face of the movable plate 9. A card slot 19 is provided on the side face of the positioning plate 13, and the limit plate 10 can be inserted into the card slot 19. A guide rod 20 is provided on the surface of the bottom plate 8, and a positioning nut 21 is screwed on one end of the guide rod 20. The positioning plate 13 is sleeved on the guide rod 20, and the positioning plate 13 can be displaced along the guide rod 20;

[0031] During use, when the milling cutter head 1 needs to be removed, first pull the movable plate 9 so that the movable plate 9 drives the limit plate 10 to disengage from the slot 19, and then pull the positioning plate 13 to move along the guide rod 20, so that the fixed plate 11 can be taken out of the receiving slot 3, and then the positioning screw 2 can be conveniently rotated to remove the milling cutter head 1. After the fixed plate 11 is inserted into the receiving slot 3, the receiving slot 3 can be filled. The setting of the limit spring 18 can increase the stability of the movable plate 9 in the installation slot 16, thereby avoiding the problem of arbitrary displacement of the movable plate 9 in the installation slot 16.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling cutter with easy blade replacement, characterized in that: The milling cutter for convenient blade replacement comprises: a milling cutter head (1), a positioning screw (2) being provided on the end face of the milling cutter head (1), a receiving groove (3) being provided on the side face of the milling cutter head (1), and a positioning groove (4) being provided on the surface of the receiving groove (3); A milling cutter handle (5) is provided with a groove (6) on the surface of the milling cutter handle (5), a bearing (7) is provided in the groove (6), a bottom plate (8) is provided on the surface of the bearing (7), a movable plate (9) is provided in the bottom plate (8), and a limit plate (10) is provided on the side of the movable plate (9); A fixing plate (11) is provided with a positioning rod (12) on the side surface of the fixing plate (11), and a positioning plate (13) is provided on the end surface of the fixing plate (11).

2. A milling cutter with easy blade replacement according to claim 1, characterized in that: The positioning screw (2) is fixedly connected to the end face of the milling cutter head (1), and two groups of receiving grooves (3) are provided. The two groups of receiving grooves (3) are symmetrically distributed with respect to the milling cutter head (1).

3. The milling cutter with easy blade replacement according to claim 1, characterized in that: The groove (6) is an annular plate structure, the inner ring surface of the bearing (7) is fixedly connected to the surface of the groove (6), the bottom plate (8) is fixedly connected to the outer ring surface of the bearing (7), the end surface of the milling cutter handle (5) is provided with a thread groove (14), and the positioning screw (2) can be screwed into the thread groove (14).

4. The milling cutter with easy blade replacement according to claim 1, characterized in that: The side of the milling cutter handle (5) is provided with a placement groove (15), the fixing plate (11) and the positioning plate (13) can be displaced in the placement groove (15), and the side of the bottom plate (8) is provided with a mounting groove (16).

5. The milling cutter with easy blade replacement according to claim 4, characterized in that: The end surface of the mounting groove (16) is provided with a support rod (17), the surface of the support rod (17) is provided with a limit spring (18), the movable plate (9) is sleeved on the support rod (17), and the movable plate (9) can be displaced along the support rod (17), one end of the limit spring (18) is fixedly connected to the end surface of the mounting groove (16), and the other end of the limit spring (18) is fixedly connected to the side surface of the movable plate (9).

6. The milling cutter with easy blade replacement according to claim 1, characterized in that: A slot (19) is provided on the side of the positioning plate (13), and the limiting plate (10) can be inserted into the slot (19). A guide rod (20) is provided on the surface of the bottom plate (8), and a positioning nut (21) is screwed on one end of the guide rod (20). The positioning plate (13) is sleeved on the guide rod (20), and the positioning plate (13) can be displaced along the guide rod (20).

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