External thread milling cutter with internal cooling structure

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to an external thread milling cutter with an internal cooling structure, and aims to solve the problems that cutting teeth are abraded when the conventional thread milling cutter is used for a long time, and cutters need to be replaced together when the cutting teeth are replaced because a cutter point main body is connected with a milling end of a cutter body. According to the technical scheme, the cutter comprises a limiting cutter handle, a cutter block mounting groove is formed in the outer wall of the limiting cutter handle, a cutting cutter block is mounted above the cutter block mounting groove, and a fixing screw is mounted above the cutting cutter block. The cutter block mounting hole formed in the upper portion of the cutter block limiting block is connected with the cutter block fixing hole formed in the surface of the cutter block fixing block, so that the cutter block can be effectively fixed to the upper portion of the limiting cutter handle through a fixing screw; and the cutting knife block can be effectively disassembled through mutual matching of the fixing screw, the knife block fixing hole and the knife block mounting hole, so that the economic loss of a user is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a thread milling cutter, in particular to an external thread milling cutter with an internal cooling structure, belonging to the technical field of milling cutters. Background Technique

[0002] Thread milling cutters have many advantages and are much more advantageous than taps. Thread milling cutters are more than a dozen times faster than taps, and have high precision and good surface roughness. For the same pitch, holes of different sizes can be machined with one cutter. Drilling, milling threads, and chamfering can be completed in one step. Even if it breaks, it won't be like a tap that can't be taken out, and the resistance of the machine tool is also small.

[0003] A thread milling cutter with the publication number of CN219503882U includes a milling cutter body. The milling cutter body includes a tool shank and a cutter body. The milling end of the cutter body is connected with a tip body. The shape of the tip body is conical. The surface of the tip body is provided with three helical cutting teeth arranged in an equidistant annular array. The head end face of the tip body is a plane. This device adopts a full-thread design, which can achieve one-time cutting, greatly improving the processing efficiency of the thread milling cutter, enabling better large-scale production, and being convenient to use.

[0004] However, in actual use, through the tip body arranged at the milling end of the cutter body, one-time cutting can be achieved, greatly improving the processing efficiency of the thread milling cutter. However, during long-term use, the cutting teeth will wear. Since the tip body is connected to the milling end of the cutter body, replacing the cutting teeth requires replacing the entire tool, which increases the economic loss of the user. Therefore, we provide an external thread milling cutter with an internal cooling structure. Content of the Utility Model

[0005] The utility model provides an external thread milling cutter with an internal cooling structure to solve the problem that during long-term use, the cutting teeth will wear. Since the tip body is connected to the milling end of the cutter body, replacing the cutting teeth requires replacing the entire tool, which increases the economic loss of the user.

[0006] The utility model realizes the above purpose through the following technical solutions: an external thread milling cutter with an internal cooling structure includes a limiting tool shank. The outer wall of the limiting tool shank is provided with a tool block installation groove. Above the tool block installation groove, a cutting tool block is installed, and a fixing screw is installed above the cutting tool block;

[0007] One side of the tool block installation groove is provided with a tool block limiting block, the other side of the tool block installation groove is provided with a heat dissipation block, and the bottom outer wall of the limiting tool shank is provided with tool shank heat dissipation holes.

[0008] As a further scheme of the utility model: the outer wall surface of the tool block limiting block is provided with tool block installation holes, and the inside of the heat dissipation block is provided with heat dissipation grooves.

[0009] As a further solution of the utility model: a tool holder connection and installation block is installed in front of the limit tool holder, and an installation and clamping root is fixedly connected to the top end of the tool holder connection and installation block.

[0010] As a further solution of the utility model: a threaded installation groove is provided on the outer wall of the rear end of the tool holder connection and installation block.

[0011] As a further solution of the utility model: a threaded installation block is fixed at the center of the top end of the limit tool holder.

[0012] As a further solution of the utility model: a tool block fixing block is fixedly connected below the cutting tool block, and a tool block fixing hole is provided at the center of the outer wall of the tool block fixing block.

[0013] As a further solution of the utility model: a tool block cutting edge is fixedly connected above the cutting tool block, and a threaded cutting edge is provided at the top end of the tool block cutting edge.

[0014] As a further solution of the utility model: the tool holder heat dissipation holes penetrate through the inside of the limit tool holder.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the mutual cooperation between the tool block installation groove, the tool block limit block and the heat dissipation block, the utility model can effectively install the cutting tool block. By connecting the tool block installation hole provided above the tool block limit block with the tool block fixing hole provided on the surface of the tool block fixing block, the fixing screw can effectively fix the cutting tool block above the limit tool holder. After fixing, the threaded cutting edge provided at the top end of the tool block cutting edge can effectively perform cutting, and the cut chips can be discharged from the outer wall of the cutting tool block. Through the mutual cooperation between the fixing screw, the tool block fixing hole and the tool block installation hole, the cutting tool block can be effectively disassembled, thereby effectively reducing the economic loss of the user;

[0017] 2. Through the heat dissipation groove provided inside the heat dissipation block, the utility model can effectively dissipate the heat generated during the cutting of the tool block cutting edge, and the tool holder heat dissipation holes can effectively dissipate the heat generated inside the limit tool holder. By connecting the provided threaded installation block with the threaded installation groove, the limit tool holder and the tool holder connection and installation block can be disassembled and assembled, effectively avoiding the replacement of the entire tool, thereby effectively reducing the economic loss of the user. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic structural diagram of the tool block installation groove of the utility model;

[0020] Figure 3 is a schematic structural diagram of the cutting tool block of the utility model;

[0021] Figure 4 This is a schematic diagram of the threaded installation block and threaded installation groove structure of the present utility model.

[0022] In the figure: 1. Installation clamping root; 2. Limiting tool handle; 3. Cutting tool block; 4. Tool block fixing block; 5. Tool block cutting edge; 6. Threaded installation groove; 7. Thread cutting edge; 8. Fixing screw; 9. Tool handle heat dissipation hole; 10. Tool block limiting block; 11. Heat dissipation block; 12. Tool block installation hole; 13. Heat dissipation groove; 14. Tool block installation groove; 15. Tool block fixing hole; 16. Tool handle connection installation block; 17. Threaded installation block. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0024] As Figures 1 to 4 shown, an external thread milling cutter with an internal cooling structure includes a limiting tool handle 2. A tool block installation groove 14 is opened on the outer wall of the limiting tool handle 2. A cutting tool block 3 is installed above the tool block installation groove 14, and a fixing screw 8 is installed above the cutting tool block 3;

[0025] A tool block limiting block 10 is arranged on one side of the tool block installation groove 14, a heat dissipation block 11 is arranged on the other side of the tool block installation groove 14, and a tool handle heat dissipation hole 9 is opened on the bottom outer wall of the limiting tool handle 2. Embodiment 2

[0026] In addition to including all the technical features in Embodiment 1 in this embodiment, it further includes:

[0027] The outer wall surface of the tool block limiting block 10 is provided with a tool block mounting hole 12. The inside of the heat dissipation block 11 is provided with a heat dissipation groove 13. In front of the limiting tool handle 2, a tool handle connection mounting block 16 is installed. At the top of the tool handle connection mounting block 16, a mounting clamping root 1 is fixedly connected. On the rear outer wall of the tool handle connection mounting block 16, a threaded mounting groove 6 is provided. At the center of the top of the limiting tool handle 2, a threaded mounting block 17 is fixed. Below the cutting tool block 3, a tool block fixing block 4 is fixedly connected. At the center of the outer wall of the tool block fixing block 4, a tool block fixing hole 15 is provided. The tool block mounting groove 14 cooperates with the tool block limiting block 10 and the heat dissipation block 11 to effectively install the cutting tool block 3. By connecting the tool block mounting hole 12 provided above the tool block limiting block 10 with the tool block fixing hole 15 provided on the surface of the tool block fixing block 4, the fixing screw 8 can effectively fix the cutting tool block 3 above the limiting tool handle 2. The mutual cooperation between the tool block fixing hole 15 and the tool block mounting hole 12 can effectively disassemble the cutting tool block 3, thereby effectively reducing the economic loss of the user. Above the cutting tool block 3, a tool block cutting edge 5 is fixedly connected. At the top of the tool block cutting edge 5, a threaded cutting edge 7 is provided. The tool handle heat dissipation hole 9 runs through the inside of the limiting tool handle 2. The heat dissipation groove 13 provided inside the heat dissipation block 11 can effectively dissipate the heat generated during the cutting of the tool block cutting edge 5, and the tool handle heat dissipation hole 9 can effectively dissipate the heat generated inside the limiting tool handle 2. By connecting the provided threaded mounting block 17 with the threaded mounting groove 6, the limiting tool handle 2 and the tool handle connection mounting block 16 can be disassembled and assembled, effectively avoiding the replacement of the entire tool.

[0028] Working principle: First, fix the mounting clamping root 1 on the lathe, and then connect the limiting tool handle 2 with the tool handle connection mounting block 16. The provided threaded mounting block 17 and the threaded mounting groove 6 can effectively disassemble the limiting tool handle 2, effectively avoiding the replacement of the entire tool, thereby effectively reducing the economic loss of the user. Through the mutual cooperation between the tool block fixing hole 15 provided above the tool block fixing block 4 and the tool block mounting hole 12 provided above the tool block limiting block 10, it is convenient for the user to use the fixing screw 8 to fix the cutting tool block 3 in the tool block mounting groove 14. The heat dissipation groove 13 provided inside the heat dissipation block 11 can effectively dissipate the high temperature generated during the cutting of the cutting tool block 3, and the chips generated during the cutting of the tool block cutting edge 5 and the threaded cutting edge 7 can be discharged from the outer wall of the cutting tool block 3. The setting of the tool handle heat dissipation hole 9 can dissipate the high temperature generated by the limiting tool handle 2. Through the mutual cooperation between the fixing screw 8 and the tool block fixing hole 15 and the tool block mounting hole 12, the cutting tool block 3 can be effectively disassembled, thereby effectively reducing the economic loss of the user.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0030] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An external thread milling cutter with an internal cooling structure, comprising a limit handle (2), Characterized in that: A cutter block installation groove (14) is provided on the outer wall of the limit handle (2), a cutting cutter block (3) is installed above the cutter block installation groove (14), and a fixing screw (8) is installed above the cutting cutter block (3); A cutter block limit block (10) is arranged on one side of the cutter block installation groove (14), a heat dissipation block (11) is arranged on the other side of the cutter block installation groove (14), and a handle heat dissipation hole (9) is provided on the outer wall of the bottom end of the limit handle (2).

2. The external thread milling cutter with an internal cooling structure according to claim 1, Characterized in that: A cutter block installation hole (12) is provided on the outer wall surface of the cutter block limit block (10), and a heat dissipation groove (13) is provided inside the heat dissipation block (11).

3. The external thread milling cutter with an internal cooling structure according to claim 1, Characterized in that: A handle connection installation block (16) is installed in front of the limit handle (2), and an installation clamping root (1) is fixedly connected to the top end of the handle connection installation block (16).

4. The external thread milling cutter with an internal cooling structure according to claim 3, Characterized in that: A threaded installation groove (6) is provided on the outer wall of the rear end of the handle connection installation block (16).

5. The external thread milling cutter with an internal cooling structure according to claim 3, Characterized in that: A threaded installation block (17) is fixed at the center of the top end of the limit handle (2).

6. The external thread milling cutter with an internal cooling structure according to claim 1, Characterized in that: A cutter block fixing block (4) is fixedly connected below the cutting cutter block (3), and a cutter block fixing hole (15) is provided at the center of the outer wall of the cutter block fixing block (4).

7. The external thread milling cutter with an internal cooling structure according to claim 6, Characterized in that: A cutter block cutting edge (5) is fixedly connected above the cutting cutter block (3), and a threaded cutting edge (7) is provided at the top end of the cutter block cutting edge (5).

8. The external thread milling cutter with an internal cooling structure according to claim 1, Characterized in that: The handle heat dissipation hole (9) penetrates through the inside of the limit handle (2).

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