Split threaded cutter

Abstract

The utility model discloses a split type thread milling cutter, including milling cutter handle and milling cutter blade, and one side of milling cutter blade and milling cutter handle is detachably fixedly connected through conical compression mechanism. Conical compression mechanism includes locking pin hole, locking pin, and the side of milling cutter handle is provided with handle blade groove, and locking pin hole is located the upside of handle blade groove, and the end face of milling cutter blade is provided with the blade conical groove that is matched with the shape of locking pin, and the conical direction of locking pin is contrary with the conical direction of blade conical groove, and locking pin and milling cutter handle are detachably fixedly connected. Compared with the mode that the blade is compressed by multiple bolts in the prior art, the utility model realizes the fixation of blade through single conical locking pin, has higher stability, and the dismounting process is more simple and fast. The utility model is suitable for various thread processing, forming milling processing occasion, can effectively improve the tool life, processing efficiency and processing quality, and reduce the use cost.

Description

Technical Field

[0001] This utility model relates to a machining tool, and more particularly to a split-type thread milling cutter. Background Technology

[0002] In the field of machining, thread end mills are essential tools for machining threaded holes. Existing split-type thread end mills typically use multiple bolts to secure the inserts. While this multi-point fixing method achieves insert fixation, it presents several problems in practical use. First, due to the use of multiple bolts, it's difficult to ensure that the tightening force of each bolt is completely consistent, easily leading to uneven stress on the inserts, thus affecting machining accuracy, vibration resistance, and stability. Second, the disassembly and assembly process of multi-bolt fixing is cumbersome, requiring individual tightening or loosening of each bolt. This not only increases operation time and labor intensity but may also lead to bolt loosening or damage during frequent disassembly and assembly, further affecting the end mill's service life and reliability. Therefore, how to design a more stable and easily disassembled split-type thread end mill is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to provide a split-type thread milling cutter.

[0004] To achieve the above objectives, this utility model is implemented according to the following technical solution:

[0005] This utility model includes a milling cutter holder and a milling cutter insert, wherein the milling cutter insert is detachably and fixedly connected to one side of the milling cutter holder by a tapered clamping mechanism.

[0006] Furthermore, the tapered clamping mechanism includes a locking pin hole and a locking pin. The side of the milling cutter shank is provided with a shank blade groove. The locking pin hole is located inside the milling cutter shank and is situated above the shank blade groove. The end face of the milling cutter blade is provided with a blade tapered groove. The shape of the blade tapered groove matches the shape of the locking pin. The locking pin is located inside the locking pin hole. One side of the locking pin contacts the blade tapered groove. The tapered direction of the locking pin is opposite to the tapered direction of the blade tapered groove. The locking pin is detachably and fixedly connected to the milling cutter shank.

[0007] Specifically, the locking pin hole is provided with a pin mounting threaded hole, one end of the locking pin is provided with a pin threaded section, and the other end of the locking pin is provided with a pin wrench hole, and the pin threaded section is threadedly connected to the pin mounting threaded hole.

[0008] Preferably, the upper and lower end faces of the milling cutter insert are provided with blade conical grooves, and one side of the locking pin contacts any one of the blade conical grooves on the upper or lower end face of the milling cutter insert.

[0009] The beneficial effects of this utility model are:

[0010] This utility model is a split-type thread milling cutter. Compared with the prior art, this utility model has the following technical effects:

[0011] Improved stability: This utility model uses a conical clamping mechanism to fix the milling cutter insert to the milling cutter shank. The conical structure of the locking pin is opposite to the direction of the conical groove of the insert. This structural design allows the insert to be evenly stressed in the entire circumferential direction, effectively preventing the milling cutter insert from vibrating, loosening or falling off during the machining process, thereby significantly improving the stability of the milling cutter and ensuring machining quality.

[0012] Easy disassembly and replacement: Compared with the existing technology that uses multiple bolts for fixing, the conical clamping mechanism of this utility model only requires a single locking pin to fix and remove the blade. Operators can easily install and remove the blade by simply rotating the locking pin with a wrench, greatly simplifying the assembly and disassembly process, improving work efficiency, and reducing labor intensity.

[0013] Cost reduction: The split design allows the end mill inserts and shank to be manufactured and replaced separately. It is reversible, and when the insert wears or is damaged, only the insert needs to be replaced, rather than the entire end mill, thus reducing operating costs and improving resource utilization.

[0014] Enhanced applicability: The split-type thread milling cutter of this utility model can select different shapes and sizes of cutting inserts according to different processing needs, which enhances the applicability of the milling cutter and can meet various thread and forming milling processing requirements. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention;

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

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

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

[0019] Figure 5 This is a schematic diagram of the blade and pin structure of this utility model.

[0020] In the diagram: 1. Milling cutter holder; 2. Locking pin hole; 3. Pin mounting threaded hole; 4. Locking pin; 5. Pin wrench hole; 6. Pin threaded section; 7. Milling cutter insert; 8. Insert tapered groove; 9. Cutting cutter holder insert groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0022] like Figure 1-5 As shown: This utility model includes a milling cutter holder 1 and a milling cutter blade 7. The milling cutter blade 7 is detachably and fixedly connected to one side of the milling cutter holder 1 through a conical clamping mechanism.

[0023] Furthermore, the tapered clamping mechanism includes a locking pin hole 2 and a locking pin 4. The side of the milling cutter shank 1 is provided with a shank blade groove 9. The locking pin hole 2 is located inside the milling cutter shank 1 and is located above the shank blade groove 9. The end face of the milling cutter blade 7 is provided with a blade tapered groove 8. The shape of the blade tapered groove 8 matches the shape of the locking pin 4. The locking pin 4 is located inside the locking pin hole 2. One side of the locking pin 4 contacts the blade tapered groove 8. The tapered direction of the locking pin 4 is opposite to the tapered direction of the blade tapered groove 8. The locking pin 4 is detachably and fixedly connected to the milling cutter shank 1.

[0024] Specifically, the locking pin hole 2 is provided with a pin mounting threaded hole 3, one end of the locking pin 4 is provided with a pin threaded section 6, and the other end of the locking pin 4 is provided with a pin wrench hole 5. The pin threaded section 6 is threadedly connected to the pin mounting threaded hole 3.

[0025] Preferably, both the upper and lower end faces of the milling cutter insert 7 are provided with blade conical grooves 8, and one side of the locking pin 4 contacts either one of the blade conical grooves 8 on the upper or lower end face of the milling cutter insert 7. This allows the milling cutter insert 7 to be used on the other side when one side is damaged.

[0026] The working principle of this utility model is as follows:

[0027] This invention employs a tapered groove 8 on the end mill insert 7, and a locking pin 4 with the same matching shape to press the end mill insert 7. The middle section of the locking pin 4 is tapered, matching the shape of the tapered groove 8. During installation, the tapered structure is in the opposite direction. First, the end mill insert 7 is placed in the insert groove 9 of the tool holder. Then, the locking pin 4 is inserted into the locking pin hole 2. Next, a wrench is inserted into the pin wrench hole 5, and the locking pin 4 is rotated to make the threaded section 6 of the pin threaded into the pin mounting threaded hole 3. This causes the entire outer wall of the locking pin 4 to press the end mill insert 7 with uniform pressure. Because the tapered structure of the locking pin 4 is in the opposite direction to the tapered groove 8 of the insert, it can effectively prevent the end mill insert 7 from falling off. Compared with the traditional method of fixing only with bolts, it can improve stability and facilitate the disassembly and replacement of the end mill insert 7, making it convenient to use.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split threaded cutter comprising a cutter shank (1), a cutter insert (7), characterized in that: The milling cutter blade (7) is detachably and fixedly connected to one side of the milling cutter holder (1) through a conical clamping mechanism; The conical clamping mechanism includes a locking pin hole (2) and a locking pin (4). The side of the milling cutter shank (1) is provided with a shank blade groove (9). The locking pin hole (2) is located inside the milling cutter shank (1) and is located on the upper side of the shank blade groove (9). The end face of the milling cutter blade (7) is provided with a blade conical groove (8). The shape of the blade conical groove (8) matches the shape of the locking pin (4). The locking pin (4) is located inside the locking pin hole (2). One side of the locking pin (4) is in contact with the blade conical groove (8). The conical direction of the locking pin (4) is opposite to the conical direction of the blade conical groove (8). The locking pin (4) is detachably and fixedly connected to the milling cutter shank (1).

2. The split thread cutter of claim 1, wherein: The locking pin hole (2) is provided with a pin mounting threaded hole (3), one end of the locking pin (4) is provided with a pin threaded section (6), and the other end of the locking pin (4) is provided with a pin wrench hole (5). The pin threaded section (6) is threadedly connected to the pin mounting threaded hole (3).

3. The split thread cutter of claim 1, wherein: The upper and lower ends of the milling cutter insert (7) are provided with blade conical grooves (8), and one side of the locking pin (4) contacts any one of the blade conical grooves (8) on the upper or lower ends of the milling cutter insert (7).

Images