A drill-mill combined cutter with quick change interface structure

Abstract

This utility model belongs to the field of cutting tool technology, and particularly relates to a drilling and milling composite tool with a quick-change interface structure. Addressing the problem that existing tools, due to their one-piece design, require replacement of the entire tool when the tool tip is damaged, resulting in poor practicality, the following solution is proposed: The tool body has several milling edges on its outer wall. A quick-release mechanism for quick tool release is located on the left side of the tool body, and an adjustment mechanism for tool adjustment is located on the left side of the quick-release mechanism. The quick-release mechanism includes a connector mounted on the left side of the tool body. This utility model allows for manual pulling of a limiting rod on the connector, separating the end of the limiting rod from the limiting hole on the connecting block, releasing the connection block from its fixation, and thus enabling separate disassembly and replacement of the tool body, improving the practicality of the tool.

Description

Technical Field

[0001] This utility model relates to a drilling and milling composite tool, specifically a drilling and milling composite tool with a quick-change interface structure, belonging to the field of tool technology. Background Technology

[0002] The drill-milling compound tool is an innovative tool that integrates drilling and milling functions into one unit. It can complete axial feed (drilling) and radial feed (milling) in a single setup without tool changes, thus significantly improving machining efficiency and reducing machining steps and tool changes. It is particularly suitable for machining complex structures such as closed keyways and concave cavities in molds, and has significant application value in CNC profile milling and automated machining. The drill-milling compound tool combines the functions of a drill and a milling cutter, enabling axial cut (drilling) and radial cut (milling), making it suitable for machining complex parts.

[0003] In existing technologies, such as the drilling and milling compound tool disclosed in CN215145016U, a cutting section and a shank are included. The cutting section consists of a drilling section at its end and a milling section on its outer circumferential surface. The milling section includes helical peripheral cutting edges evenly distributed on the outer circumferential surface of the cutting section, with a ligament located 5mm to 10mm from the end face of the cutting section on each helical peripheral cutting edge. The drilling section includes a drill tip protruding from the center of the end face of the cutting section and several drilling cutting edges extending from the drill tip to the edge. The taper angle of the drill tip is 90° to 140°, and a chip groove is formed between each pair of drilling cutting edges. It can achieve both drilling and milling operations with a single tool, has good machining stability, and its drilling accuracy, surface finish, and roundness are better than those of ordinary drill bits.

[0004] Existing cutting tools can perform both drilling and milling operations with a single tool, resulting in good machining stability. Their drilling accuracy, surface finish, and roundness are all better than those of ordinary drill bits. However, most cutting tools are designed as a single piece, so when the tool head is damaged, the entire tool needs to be replaced, which reduces their practicality. Therefore, this paper proposes a drilling and milling composite tool with a quick-change interface structure to overcome the above-mentioned defects. Utility Model Content

[0005] This utility model addresses the problem that most cutting tools, due to their one-piece design, require complete replacement when the tool head is damaged, resulting in poor practicality. It provides a drilling and milling composite tool with a quick-change interface structure.

[0006] The present invention achieves the above objectives through the following technical solution: a drilling and milling composite tool with a quick-change interface structure, including a tool body, the outer wall of the tool body having a plurality of milling edges, a quick-release mechanism for quick release of the tool being provided on the left side of the tool body, and an adjustment mechanism for adjusting the tool being provided on the left side of the quick-release mechanism.

[0007] The quick-release mechanism includes a connector, which is installed on the left side of the blade body. A limit rod is telescopically connected inside the connector in the vertical direction. A movable block is fixed on the outer surface of the limit rod. A compression spring sleeved on the limit rod is abutted on the upper surface of the movable block. A connecting block is connected to the lower surface of the limit rod. A limit hole is opened on the outer wall of the connecting block to be inserted and connected to the limit rod.

[0008] As a further embodiment of this utility model: the adjusting mechanism includes a fixing rod, which is fixed to the left side of the connector, and an adjusting rod is connected to the left side of the fixing rod.

[0009] As a further improvement of this utility model, the inner wall of the adjusting rod is provided with a connecting groove for insertion and connection with the fixing rod.

[0010] As a further improvement of this utility model: a fixing hole is provided on the outer wall of the fixing rod, and a fixing screw that is threadedly connected to the adjusting rod is inserted into the fixing hole.

[0011] As a further improvement of this utility model, a tool shank is telescopically connected to the left side of the adjusting rod.

[0012] As a further improvement of this utility model: a limiting strip is fixed to the inner wall of the tool shank, and a sliding groove is slidably connected to one side of the limiting strip.

[0013] As a further improvement of this utility model: a fixing bolt is installed on the outer surface of the tool shank, and the end of the fixing bolt is inserted into a connecting hole opened on the adjusting rod.

[0014] The beneficial effects of this utility model are: by manually pulling the limiting rod on the connector, the end of the limiting rod and the limiting hole on the connecting block are separated, the fixing of the connecting block is released, and the tool body can be disassembled and replaced separately, thereby improving the practicality of the tool.

[0015] By loosening the fixing bolt, the connecting hole on the fixing bolt and the adjusting rod are separated, thus releasing the fixing of the adjusting rod. With the cooperation of the limit strip and the slide groove, the adjusting rod can be pulled, thereby realizing the function of adjusting the length of the tool. After the adjustment is completed, the fixing bolt is tightened to fix the tool. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the knife of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the connector of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the connector of this utility model.

[0020] In the diagram: 1. Tool body; 2. Milling blade; 3. Connecting part; 31. Limiting rod; 32. Movable block; 33. Compression spring; 34. Connecting block; 35. Limiting hole; 4. Fixing rod; 41. Adjusting rod; 42. Connecting groove; 43. Fixing hole; 44. Fixing screw; 5. Tool shank; 6. Limiting strip; 7. Slide groove; 8. Fixing bolt; 9. Connecting hole. Detailed Implementation

[0021] 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. Example 1

[0022] like Figures 1 to 4 As shown, a drilling and milling composite tool with a quick-change interface structure includes a tool body 1, a plurality of milling edges 2 are provided on the outer wall of the tool body 1, a quick-release mechanism for quick release of the tool is provided on the left side of the tool body 1, and an adjustment mechanism for adjusting the tool is provided on the left side of the quick-release mechanism.

[0023] The quick-release mechanism includes a connector 3, which is installed on the left side of the tool body 1. A limit rod 31 is vertically telescopically connected inside the connector 3. A movable block 32 is fixed on the outer surface of the limit rod 31. A compression spring 33 sleeved on the limit rod 31 is abutted on the upper surface of the movable block 32. A connecting block 34 is connected to the lower surface of the limit rod 31. A limiting hole 35 is opened on the outer wall of the connecting block 34 to connect with the limit rod 31. When the tool body 1 needs to be replaced separately, the limit rod 31 on the connector 3 can be manually pulled to separate the end of the limit rod 31 from the limiting hole 35 on the connecting block 34. At the same time, when the limit rod 31 moves, it will drive the movable block 32 to move, thereby pressing the compression spring 33. At this time, the fixing of the connecting block 34 is released, so that the tool body 1 can be disassembled and replaced separately, improving the practicality of the tool. Example 2

[0024] In addition to all the technical features in Embodiment 1, this embodiment also includes: an adjusting mechanism comprising a fixed rod 4, the fixed rod 4 being fixed to the left side of the connector 3, an adjusting rod 41 being connected to the left side of the fixed rod 4, a connecting groove 42 for inserting the fixed rod 4 into the inner wall of the adjusting rod 41, a fixing hole 43 being provided on the outer wall of the fixed rod 4, a fixing screw 44 threadedly connected to the adjusting rod 41 being inserted into the fixing hole 43, a tool holder 5 being telescopically connected to the left side of the adjusting rod 41, a limit strip 6 being fixed to the inner wall of the tool holder 5, a sliding groove 7 being slidably connected to one side of the limit strip 6, and a fixing bolt 8 being installed on the outer surface of the tool holder 5, the end of the fixing bolt 8 being... The end plug has a connecting hole 9 on the adjusting rod 41. When the length of the cutter needs to be adjusted, the fixing bolt 8 can be loosened to separate the fixing bolt 8 from the connecting hole 9 on the adjusting rod 41, thus releasing the fixing of the adjusting rod 41. With the cooperation of the limit strip 6 and the slide groove 7, the adjusting rod 41 can be pulled to achieve the function of adjusting the length of the cutter. After the adjustment is completed, the fixing bolt 8 can be tightened to fix the cutter. By unscrewing the fixing screw 44, the fixing screw 44 is separated from the fixing hole 43 on the fixing rod 4. With the cooperation of the connecting groove 42, the connecting part 3 can be disassembled, which facilitates the modular disassembly and assembly of the milling cutter.

[0025] Working Principle: Before using the drilling and milling composite tool with a quick-change interface, first place the tool body 1 in a suitable position. Connect the tool shank 5 on the tool body 1 to the output shaft of the machine tool, allowing the machine tool to drive the tool body 1. The milling edge 2 on the tool body 1 will then drill and mill the workpiece. When the tool body 1 needs to be replaced individually, manually pull the limiting rod 31 on the connecting piece 3. This will separate the end of the limiting rod 31 from the limiting hole 35 on the connecting block 34. Simultaneously, the movement of the limiting rod 31 will drive the movable block 32 to move, thereby pressing the clamping spring 33. At this point, the fixing of the connecting block 34 is released, allowing the tool to be replaced. The cutter body 1 can be disassembled separately and the cutter body 1 can be replaced separately to improve the practicality of the cutter. When the length of the cutter needs to be adjusted, the fixing bolt 8 can be loosened to separate the fixing bolt 8 from the connecting hole 9 on the adjusting rod 41, thereby releasing the fixing of the adjusting rod 41. With the cooperation of the limit strip 6 and the slide groove 7, the adjusting rod 41 can be pulled to achieve the function of adjusting the length of the cutter. After the adjustment is completed, the fixing bolt 8 can be tightened to fix the cutter. By unscrewing the fixing screw 44, the fixing screw 44 is separated from the fixing hole 43 on the fixing rod 4. With the cooperation of the connecting groove 42, the connecting part 3 can be disassembled, which facilitates the modular disassembly and assembly of the milling cutter.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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. A drilling and milling composite tool with a quick-change interface structure, comprising a tool body (1), characterized in that: The outer wall of the tool body (1) is provided with a plurality of milling blades (2), and the left side of the tool body (1) is provided with a quick release mechanism for quick release of the tool, and the left side of the quick release mechanism is provided with an adjustment mechanism for adjusting the tool. The quick-release mechanism includes a connector (3), which is installed on the left side of the blade body (1). A limit rod (31) is vertically telescopically connected inside the connector (3). A movable block (32) is fixed on the outer surface of the limit rod (31). A compression spring (33) sleeved on the limit rod (31) is abutted on the upper surface of the movable block (32). A connecting block (34) is connected to the lower surface of the limit rod (31). A limit hole (35) is opened on the outer wall of the connecting block (34) to be inserted and connected to the limit rod (31).

2. A drilling and milling composite tool with a quick-change interface structure according to claim 1, characterized in that: The adjustment mechanism includes a fixed rod (4), which is fixed to the left side of the connector (3), and an adjustment rod (41) is connected to the left side of the fixed rod (4).

3. A drilling and milling composite tool with a quick-change interface structure according to claim 2, characterized in that: The inner wall of the adjusting rod (41) is provided with a connecting groove (42) for insertion and connection with the fixing rod (4).

4. A drilling and milling composite tool with a quick-change interface structure according to claim 3, characterized in that: The outer wall of the fixing rod (4) is provided with a fixing hole (43), and a fixing screw (44) that is threadedly connected to the adjusting rod (41) is inserted into the fixing hole (43).

5. A drilling and milling composite tool with a quick-change interface structure according to claim 4, characterized in that: The left side of the adjusting rod (41) is telescopically connected to a tool holder (5).

6. A drilling and milling composite tool with a quick-change interface structure according to claim 5, characterized in that: The inner wall of the tool holder (5) is fixed with a limiting strip (6), and a sliding groove (7) is slidably connected to one side of the limiting strip (6).

7. A drilling and milling composite tool with a quick-change interface structure according to claim 6, characterized in that: The outer surface of the tool holder (5) is fitted with a fixing bolt (8), and the end of the fixing bolt (8) is connected to a connecting hole (9) opened on the adjusting rod (41).

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