A low-vibration high-precision milling cutter

Abstract

The utility model discloses a kind of high-precision milling cutter of low vibration, including shank and tool bit, the top end of the tool bit is inserted in the inner cavity of shank, the outside edge of shank is equipped with movable tube, the outside edge of shank is close to top end and bottom end and is all set with external thread, the inner cavity of movable tube is close to top end and bottom end and is all set with internal thread, the inner cavity of movable tube is set with annular taper surface groove, the inner cavity of annular taper surface groove is equipped with four steel balls, the outside edge of shank is close to center position and is set with four taper holes, a kind of high-precision milling cutter of low vibration of the utility model, the device is disassembled by tool bit, simultaneously, damaged tool bit end is ground or cut off, then by the setting of multiple limiting blind hole, so that the tool bit of grinding or cutting off end, the tool bit after length shortening can continue to install, i.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, and in particular to a low-vibration, high-precision milling cutter. Background Technology

[0002] In the manufacturing process of printed circuit boards (PCBs), milling cutters are essential cutting tools. The milling cutter operates in a high-speed, high-temperature, and frictional environment with the PCB. When the milling cutter comes into contact with the PCB, its tip is easily worn. Simply discarding the entire milling cutter as scrap after the tip is damaged, and then purchasing a new one, is wasteful and costly. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a high-precision milling cutter with low vibration.

[0004] One of the objectives of this utility model is achieved through the following technical solution:

[0005] A low-vibration, high-precision milling cutter includes a shank and a cutter head. The top end of the cutter head is inserted into the inner cavity of the shank. A movable tube is sleeved on the outer edge of the shank. External threads are formed on the outer edge of the shank near the top and bottom ends. Internal threads are formed on the inner cavity of the movable tube near the top and bottom ends. An annular conical groove is formed in the inner cavity of the movable tube. Four steel balls are provided in the inner cavity of the annular conical groove. Four conical holes are formed on the outer edge of the shank near the center position. Several limiting blind holes are formed on the outer edge of the cutter head.

[0006] Furthermore, the external thread and the internal thread are matched, and the movable pipe thread is connected to the outer edge of the tool holder.

[0007] Furthermore, a number of anti-slip strips are fixedly connected to the outer edge of the movable tube, and the number of anti-slip strips are arranged in a circular array.

[0008] Furthermore, the steel ball moves through adjacent conical holes and is inserted into the inner cavity of adjacent limiting blind holes.

[0009] Furthermore, the steel ball is in contact with the inner wall of the annular conical groove, and the steel ball is matched with the conical hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model discloses a low-vibration high-precision milling cutter. The device disassembles the cutter head and grinds or cuts off the damaged cutter head end. Then, through the setting of multiple limiting blind holes, the cutter head with the ground or cut-off end shortened in length can be reinstalled. That is, the cutter head of this device can be reused multiple times, saving resources and reducing material costs.

[0012] 2. This utility model provides a low-vibration, high-precision milling cutter. By setting anti-slip strips, the friction of the moving tube surface is greatly improved, making it easier to rotate the moving tube and thus easier to disassemble and install the cutter head.

[0013] 3. This utility model provides a low-vibration, high-precision milling cutter. By setting a tapered hole, the steel ball moves within a defined trajectory, preventing the steel ball from falling out of its installation position, thereby ensuring the normal operation of the component. Attached Figure Description

[0014] Figure 1 This is a frontal perspective view of the present invention;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a frontal perspective view of the limiting blind hole of the component of this utility model;

[0018] Figure 5 This is a front perspective view of the tapered hole in the component of this utility model;

[0019] Figure 6 This is a front perspective view of the movable tube of the present invention.

[0020] Figure 7 This is a front sectional view of the movable tube of the present invention.

[0021] The following are the labels in the diagram: 1. Tool holder; 2. Tool head; 3. Movable tube; 4. Anti-slip strip; 5. External thread; 6. Internal thread; 7. Annular conical groove; 8. Steel ball; 9. Conical hole; 10. Limiting blind hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-7 This utility model provides a technical solution: a low-vibration high-precision milling cutter, including a cutter holder 1 and a cutter head 2. The top end of the cutter head 2 is inserted into the inner cavity of the cutter holder 1. A movable tube 3 is sleeved on the outer edge of the cutter holder 1. External threads 5 are provided on the outer edge of the cutter holder 1 near the top and bottom ends. Internal threads 6 are provided on the inner cavity of the movable tube 3 near the top and bottom ends. The external threads 5 and internal threads 6 are matched with each other. The movable tube 3 is threaded to the outer edge of the cutter holder 1. Several anti-slip strips 4 are fixedly connected to the outer edge of the movable tube 3. The several anti-slip strips 4 are arranged in a ring array.

[0024] The inner cavity of the movable tube 3 is provided with an annular conical groove 7, and the inner cavity of the annular conical groove 7 is provided with four steel balls 8. The outer edge of the tool holder 1 is provided with four conical holes 9 near the center position. The outer edge of the tool head 2 is provided with several limiting blind holes 10. The steel balls 8 can move through the adjacent conical holes 9 and are inserted into the inner cavity of the adjacent limiting blind holes 10. The steel balls 8 and the inner wall of the annular conical groove 7 fit each other, and the steel balls 8 and the conical holes 9 match each other.

[0025] Working principle: This utility model discloses a low-vibration, high-precision milling cutter. During use, when the end of the cutter head 2 is damaged, the movable tube 3 can be gripped. The movable tube 3 is set with internal thread 6 and external thread 5. Under the action of the thread, the movable tube 3 moves upward, driving the annular conical groove 7 to move upward, thereby releasing the pressure on the steel ball 8. Then the cutter head 2 moves upward, moving away from the tool holder 1, and then the cutter head 2 is removed from the tool holder 1. Then the damaged part of the end of the cutter head 2 is cut off or ground off, and then the repaired cutter head 2 is put back into the tool holder 1. At this time, the corresponding limiting blind hole 10 corresponds to the adjacent conical hole 9. Then the movable tube 3 is rotated, and the movable tube 3 moves downward under the action of the thread. The movable tube 3 drives the annular conical groove 7 to move downward, and the annular conical groove 7 moves downward and squeezes the steel ball 8. The steel ball 8 is inserted into the inner cavity of the corresponding limiting blind hole 10, thereby fixing the cutter head 2.

[0026] By setting the anti-slip strip 4, the friction of the surface of the movable tube 3 is greatly improved, making it easier to rotate the movable tube 3, and thus making it easier to disassemble and install the cutter head 2.

[0027] This device disassembles the cutter head 2 and grinds or cuts off the damaged end of the cutter head 2. Then, through the setting of multiple limiting blind holes 10, the cutter head 2 with the end ground off or cut off and the length shortened can be reinstalled. That is, the cutter head 2 of this device can be reused multiple times, saving resources and reducing material costs.

[0028] By setting the tapered hole 9, the steel ball 8 moves within a limited trajectory, preventing the steel ball 8 from falling out of the installation position, thereby ensuring the normal operation of the component.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A low-vibration, high-precision milling cutter, comprising a shank (1) and a cutter head (2), characterized in that: The top of the cutter head (2) is inserted into the inner cavity of the handle (1). The outer edge of the handle (1) is fitted with a movable tube (3). The outer edge of the handle (1) is provided with external threads (5) near the top and bottom. The inner cavity of the movable tube (3) is provided with internal threads (6) near the top and bottom. The inner cavity of the movable tube (3) is provided with an annular conical groove (7). The inner cavity of the annular conical groove (7) is provided with four steel balls (8). The outer edge of the handle (1) is provided with four conical holes (9) near the center. The outer edge of the cutter head (2) is provided with several limiting blind holes (10).

2. The low-vibration, high-precision milling cutter as described in claim 1, characterized in that: The external thread (5) and the internal thread (6) are matched with each other, and the movable tube (3) is threaded to the outer edge of the tool holder (1).

3. The low-vibration, high-precision end mill as described in claim 1, characterized in that: The outer edge of the active tube (3) is fixedly connected with several anti-slip strips (4), and the several anti-slip strips (4) are arranged in a ring array.

4. The low-vibration, high-precision milling cutter as described in claim 1, characterized in that: The steel ball (8) moves through the adjacent conical hole (9) and is inserted into the cavity of the adjacent limiting blind hole (10).

5. A low-vibration, high-precision end mill as described in claim 1, characterized in that: The steel ball (8) fits into the inner wall of the annular conical groove (7), and the steel ball (8) matches the conical hole (9).

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