A cutter clamping mechanism for milling cutter machining

Abstract

The utility model discloses a cutter clamping mechanism for milling cutter processing relates to machining technical field, including cutter, cutter connecting handle subassembly and cutter connecting seat subassembly, the upper end of cutter is installed with cutter connecting handle subassembly, and cutter connecting handle subassembly contains installation handle, annular clamping slot, blocking ring, round hole and threaded rod, the upper end fixedly connected with the blocking ring of cutter, the upper end fixedly connected with the installation handle of blocking ring, the outside lower part of installation handle is equipped with annular clamping slot, the front end of installation handle is equipped with two round holes, the upper end fixedly connected with threaded rod of installation handle left and right correspondence, cutter connecting seat subassembly is installed on cutter connecting handle subassembly, this cutter clamping mechanism for milling cutter processing can be connected with the quick positioning of milling cutter and mounting seat, and the adaptability of obviously improving processing efficiency and milling cutter cutter can effectively restrain vibration, and prevent loosening, ensure the dynamic stiffness and reliability under high -speed cutting.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a tool clamping mechanism for milling cutter machining. Background Technology

[0002] Cutting tools are tools used for cutting in machining. They can be classified into various categories according to the form of the workpiece surface being machined. Among them, tools for machining external surfaces include turning tools, planing tools, milling cutters, external broaches, and files. Milling machines mainly refer to machine tools that use milling cutters to machine the surface of workpieces. Typically, the milling cutter uses rotation as its main motion, and the movement of the workpiece and the milling cutter is used as the feed motion. It can machine planes, grooves, as well as various curved surfaces, gears, etc.

[0003] Among the existing technologies, the tool clamping mechanism for milling cutter processing proposed in the authorization announcement number CN222326810U includes a connecting platform with a T-shaped cross section. The upper end of the connecting platform is connected to the spindle of an external machine tool. The lower end of the connecting platform is a T-shaped horizontal end and has a magnetic block with strong attraction inside. The outer ring surface of the lower end of the connecting platform is polygonal and is fitted with a connecting seat.

[0004] Existing technologies cannot quickly position the milling cutter while suppressing vibrations during the cutting process, making it easy for the milling cutter to loosen and fall off during cutting. They also cannot quickly position the connection between the milling cutter and the mounting base, which reduces machining efficiency and the compatibility of the milling cutter. To address this, we propose a tool clamping mechanism for milling cutter machining. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a tool clamping mechanism for milling cutter machining. This mechanism can quickly position the connection between the milling cutter and the mounting base, significantly improve machining efficiency and the adaptability of the milling cutter, effectively suppress vibration and prevent loosening, and ensure dynamic stiffness and reliability under high-speed cutting. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including a cutting tool, a cutting tool connecting shank assembly, and a cutting tool connecting seat assembly;

[0007] Cutting tool: A cutting tool connecting shank assembly is installed at the upper end, and the cutting tool connecting seat assembly is installed on the cutting tool connecting shank assembly;

[0008] The tool holder assembly includes a mounting shank, an annular groove, a retaining ring, circular through holes, and threaded rods. The retaining ring is fixedly connected to the upper end of the tool, and the mounting shank is fixedly connected to the upper end of the retaining ring. An annular groove is formed on the lower outer side of the mounting shank, and two circular through holes are formed at the front end of the mounting shank. Threaded rods are fixedly connected to the left and right sides of the upper end of the mounting shank. The tool holder assembly is rigidly connected to the tool via the mounting shank. The retaining ring provides axial limiting protection, and the threaded rods provide an upper locking interface, forming a modular tool holder system with advantages such as rapid positioning and reliable anti-rotation.

[0009] Furthermore, the tool connecting seat assembly includes a connecting seat, a limiting groove, a sliding groove, a threaded adjusting rod, a rotating handle, a limiting sliding post, and an arc-shaped locking plate. The connecting seat has a limiting groove on its inner side and a sliding groove on its lower inner side. An arc-shaped locking plate is slidably connected to the inner side of the sliding groove. Limiting sliding posts are fixedly connected to the front and rear ends of the arc-shaped locking plate. A threaded adjusting rod is rotatably connected to the middle inner side of the arc-shaped locking plate. The limiting sliding post is slidably connected to the inner side of the sliding groove. The threaded adjusting rod is threadedly connected to the inner side of the sliding groove. A rotating handle is fixedly connected to the outer side of the threaded adjusting rod. The arc-shaped locking plate is slidably connected to the annular locking groove. The rotating handle drives the threaded adjusting rod to push the arc-shaped locking plate radially along the sliding groove. The limiting sliding post ensures a stable movement trajectory, allowing the locking plate to accurately embed into the annular locking groove, forming a radial clamping mechanism. This prevents the upper bolt from loosening and the milling cutter from disengaging. Simultaneously, the friction provided by the arc-shaped locking plate prevents rotation between the milling cutter and the connecting seat.

[0010] Furthermore, the tool connector assembly also includes an outer mounting groove, a threaded fixing rod, and a nut. The outer mounting groove is correspondingly formed at the front and rear of the outer center of the connector. The threaded fixing rod passes through the connector and the circular through hole at its center, and both ends of the threaded fixing rod are threadedly connected to the nut. After passing through the outer mounting groove and the circular through hole, the threaded fixing rod is locked by the nut, forming a transversely reinforced fixing structure. This structure, combined with radial clamping, provides advantages such as strong resistance to torsional loads and good vibration suppression, while also providing multi-directional fixation to the electromagnetic device.

[0011] Furthermore, the tool connecting seat assembly also includes a circular limiting groove and a second nut. The threaded rod passes through the inner side of the circular limiting groove, and the upper outer end of the threaded rod is threadedly connected to the second nut. After the threaded rod passes through the circular limiting groove, a preload is applied through the second nut, which eliminates assembly gaps and improves dynamic stiffness.

[0012] Furthermore, it also includes a fixing rod, which is fixedly connected to the upper end of the connecting seat. The fixing rod has a circular through hole on its inner side. The circular through hole of the fixing rod provides a standard machine tool interface, enabling quick docking with the spindle box, and features strong adaptability and convenient installation.

[0013] Furthermore, it also includes an electromagnetic connecting block. An electromagnetic connecting block is embedded in the upper inner side of the connecting base, and a conductive rod is provided at the upper end of the electromagnetic connecting block. The conductive rod of the electromagnetic connecting block is fixedly connected to a circular through hole on the inner side of the fixing rod. The electromagnetic connecting block forms a closed-loop circuit with the fixing rod through the conductive rod. After being energized, it generates an additional magnetic attraction force to enhance the connection stability and has the advantage of preventing loosening.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This milling cutter clamping mechanism has the following advantages:

[0015] 1. The tool clamping mechanism for this milling cutter adopts a modular tool holder design. The mounting shank and annular groove of the tool connecting shank assembly are radially engaged with the arc-shaped locking plate of the tool connecting seat assembly. Combined with the standard machine tool interface of the fixing rod, the tool connecting shank assembly is rigidly connected to the tool through the mounting shank. The blocking ring provides axial limit protection, and the threaded rod realizes the upper locking interface, forming a modular tool holder system. It has the advantages of fast positioning and reliable anti-rotation. It can quickly position the connection between the milling cutter and the mounting seat, significantly improving the machining efficiency and the compatibility of the milling cutter.

[0016] 2. The tool clamping mechanism for this milling cutter uses a rotating shank to drive a threaded adjusting rod, which in turn pushes an arc-shaped locking plate radially along a sliding groove. A limiting sliding post ensures stable movement, allowing the locking plate to precisely engage with the annular groove, forming a radial clamping mechanism. This prevents the upper bolt from loosening and the milling cutter from disengaging. Simultaneously, the friction provided by the arc-shaped locking plate prevents rotation between the milling cutter and the connecting seat. The magnetic attraction of the electromagnetic connecting block further enhances the locking mechanism, effectively suppressing vibration and preventing loosening. This ensures dynamic stiffness and reliability under high-speed cutting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the threaded adjusting rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the threaded fixing rod structure of this utility model.

[0021] In the diagram: 1. Cutting tool; 2. Electromagnetic connecting block; 3. Cutting tool connecting handle assembly; 31. Mounting handle; 32. Annular groove; 33. Barrier ring; 34. Circular through hole; 35. Threaded rod; 4. Cutting tool connecting seat assembly; 41. Connecting seat; 42. Limiting groove; 43. Sliding groove; 44. Threaded adjusting rod; 45. Rotating handle; 46. Limiting sliding column; 47. Arc-shaped snap plate; 48. Outer mounting groove; 49. Threaded fixing rod; 410. Nut 1; 411. Circular limiting groove; 412. Nut 2; 5. Fixing rod. 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 1-4 This embodiment provides a technical solution: a tool clamping mechanism for milling cutter processing, including a tool 1, a tool connecting shank assembly 3 and a tool connecting seat assembly 4;

[0024] Tool 1: A tool connecting shank assembly 3 is installed at the upper end, and a tool connecting seat assembly 4 is installed on the tool connecting shank assembly 3;

[0025] The tool holder assembly 3 includes a mounting shank 31, an annular groove 32, a retaining ring 33, a circular through hole 34, and a threaded rod 35. The retaining ring 33 is fixedly connected to the upper end of the tool 1, and the mounting shank 31 is fixedly connected to the upper end of the retaining ring 33. An annular groove 32 is provided on the lower outer side of the mounting shank 31, and two circular through holes 34 are provided at the front end of the mounting shank 31. Threaded rods 35 are fixedly connected to the upper left and right sides of the mounting shank 31. The tool holder assembly 3 is rigidly connected to the tool 1 through the mounting shank 31. The retaining ring 33 provides axial limiting protection, and the threaded rod 35 provides an upper locking interface, forming a modular tool holder system with advantages such as rapid positioning and reliable anti-rotation.

[0026] The tool connecting seat assembly 4 includes a connecting seat 41, a limiting groove 42, a sliding groove 43, a threaded adjusting rod 44, a rotating handle 45, a limiting sliding post 46, and an arc-shaped locking plate 47. The connecting seat 41 has a limiting groove 42 on its inner side and a sliding groove 43 on its lower inner side. The arc-shaped locking plate 47 is slidably connected to the inner side of the sliding groove 43. The limiting sliding post 46 is fixedly connected to the front and rear ends of the arc-shaped locking plate 47. The threaded adjusting rod 44 is rotatably connected to the middle inner side of the arc-shaped locking plate 47. The limiting sliding post 46 is slidably connected to the inner side of the sliding groove 43. The threaded adjusting rod 44 is threadedly connected to the inner side of the sliding groove 43. The rotating handle 45 is fixedly connected to the outer side of the threaded adjusting rod 44. The arc-shaped locking plate 47 is slidably connected to the annular locking groove 32. The rotating handle 45 drives the threaded adjusting rod 44 to push the arc-shaped locking plate 47 to move radially along the sliding groove 43. The limiting sliding column 46 ensures the stability of the movement trajectory, so that the locking plate is accurately embedded in the annular locking groove 32 to form a radial clamping mechanism, preventing the upper bolt from loosening and the milling cutter from dislodging. At the same time, the friction provided by the arc-shaped locking plate 47 prevents the milling cutter from rotating with the connecting seat.

[0027] The tool connector assembly 4 also includes an outer mounting groove 48, a threaded fixing rod 49, and a nut 410. The outer mounting groove 48 is correspondingly provided at the front and rear of the outer center of the connector 41. The threaded fixing rod 49 passes through the connector 41 and the circular through hole 34 at its center, and both ends of the threaded fixing rod 49 are threadedly connected to the nut 410. After passing through the outer mounting groove 48 and the circular through hole 34, the threaded fixing rod 49 is locked by the nut 410, forming a transversely reinforced fixing structure. This structure, combined with radial clamping, provides advantages such as strong resistance to torsional loads and good vibration suppression, while also providing multi-directional fixation to the electromagnetic device.

[0028] The tool connector assembly 4 also includes a circular limiting groove 411 and a second nut 412. The threaded rod 35 passes through the inner side of the circular limiting groove 411, and the upper outer side of the threaded rod 35 is threadedly connected to the second nut 412. After the threaded rod 35 passes through the circular limiting groove 411, a preload is applied through the second nut 412, which eliminates assembly gaps and improves dynamic stiffness.

[0029] It also includes a fixing rod 5, which is fixedly connected to the upper end of the connecting seat 41. The fixing rod 5 has a circular through hole on its inner side. The circular through hole of the fixing rod 5 provides a standard machine tool interface, enabling quick docking with the spindle box, and features strong adaptability and convenient installation.

[0030] It also includes an electromagnetic connecting block 2, which is embedded in the upper inner side of the connecting base 41. A conductive rod is provided at the upper end of the electromagnetic connecting block 2, and the conductive rod of the electromagnetic connecting block 2 is fixedly connected to the circular through hole on the inner side of the fixing rod 5. The electromagnetic connecting block 2 forms a closed-loop circuit with the fixing rod 5 through the conductive rod. After being energized, it generates an additional magnetic attraction force to enhance the connection stability and has the advantage of preventing loosening.

[0031] The working principle of the tool clamping mechanism for milling cutter processing provided by this utility model is as follows: First, the tool connecting shank assembly 3 is rigidly connected to the tool 1 through the mounting shank 31, and the blocking ring 33 provides axial limiting protection; then, the arc-shaped snap-fit ​​plate 47 of the tool connecting seat assembly 4 drives the threaded adjusting rod 44 to move radially along the sliding groove 43 through the rotating shank 45, so that the arc-shaped snap-fit ​​plate 47 is precisely snapped into the annular snap-fit ​​groove 32 to form radial clamping; next, the threaded fixing rod 49 passes through the outer mounting groove 48 and the circular through hole 34 and is locked with nut 410 to achieve lateral reinforcement; then, the threaded rod 35 passes through the circular limiting groove 411 and is pre-tightened with nut 412 to eliminate gaps; finally, the machine tool spindle is connected through the circular through hole of the fixing rod 5, and the electromagnetic connecting block 2 is energized to generate magnetic attraction to enhance stability. The entire system achieves rapid assembly and disassembly and high-stability machining through dual locking of mechanical snap-fit ​​and electromagnetic adsorption.

[0032] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tool holding mechanism for a milling cutter, characterized by: It includes a cutting tool (1), a cutting tool connecting shank assembly (3), and a cutting tool connecting seat assembly (4). Cutting tool (1): A cutting tool connecting shank assembly (3) is installed on the upper end, and the cutting tool connecting seat assembly (4) is installed on the cutting tool connecting shank assembly (3); The tool connecting shank assembly (3) includes a mounting shank (31), an annular groove (32), a blocking ring (33), a circular through hole (34), and a threaded rod (35). The upper end of the tool (1) is fixedly connected to the blocking ring (33), and the upper end of the blocking ring (33) is fixedly connected to the mounting shank (31). The lower outer side of the mounting shank (31) is provided with an annular groove (32), and the front end of the mounting shank (31) is provided with two circular through holes (34). The upper end of the mounting shank (31) is fixedly connected to the threaded rod (35) on the left and right sides respectively.

2. The tool holding mechanism for milling cutter machining according to claim 1, characterized in that: The tool connecting seat assembly (4) includes a connecting seat (41), a limiting groove (42), a sliding groove (43), a threaded adjusting rod (44), a rotating handle (45), a limiting sliding post (46), and an arc-shaped retaining plate (47). The connecting seat (41) has a limiting groove (42) on its inner side, and a sliding groove (43) is provided on the lower inner side of the connecting seat (41). An arc-shaped retaining plate (47) is slidably connected to the inner side of the sliding groove (43). The front and rear ends of the arc-shaped snap plate (47) are fixedly connected to the limiting sliding column (46). The inner middle of the arc-shaped snap plate (47) is rotatably connected to the threaded adjusting rod (44). The limiting sliding column (46) is slidably connected to the inner side of the sliding groove (43). The threaded adjusting rod (44) is threadedly connected to the inner side of the sliding groove (43). The outer side of the threaded adjusting rod (44) is fixedly connected to the rotating handle (45). The arc-shaped snap plate (47) is slidably connected to the annular snap groove (32).

3. A tool holding mechanism for milling cutters according to claim 2, characterized in that: The tool connecting seat assembly (4) also includes an outer mounting groove (48), a threaded fixing rod (49) and a nut (410). The outer mounting groove (48) is provided in the middle of the outer side of the connecting seat (41) in front and behind. The middle part of the threaded fixing rod (49) passes through the connecting seat (41) and the circular through hole (34). The two ends of the threaded fixing rod (49) are threadedly connected to the nut (410).

4. The tool holding mechanism for milling cutter machining according to claim 1, characterized in that: The tool connecting seat assembly (4) also includes a circular limiting groove (411) and a second nut (412). The threaded rod (35) passes through the inner side of the circular limiting groove (411), and the outer upper end of the threaded rod (35) is threadedly connected to the second nut (412).

5. The tool holding mechanism for milling cutter machining according to claim 2, characterized in that: It also includes a fixing rod (5), the upper end of the connecting seat (41) is fixedly connected to the fixing rod (5), and the inner side of the fixing rod (5) is provided with a circular through hole.

6. The tool holding mechanism for milling cutter machining according to claim 2, characterized in that: It also includes an electromagnetic connecting block (2), which is embedded in the upper inner side of the connecting seat (41). A conductive rod is provided at the upper end of the electromagnetic connecting block (2), and the conductive rod of the electromagnetic connecting block (2) is fixedly connected to the circular through hole on the inner side of the fixing rod (5).

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