A multi-flute fixing device for a composite milling cutter

Abstract

This utility model relates to a multi-edge fixing device for composite milling cutters. The fixing plate contains multiple locking components (I) for clamping the cutter shank. A pressure plate for guiding the locking components (I) is installed on one side of the fixing plate, and a locking component (II) for locking the pressure plate is installed on another side of the fixing plate. When fixing the cutter head mounted on the cutter shank, the multiple locking components (I) are placed inside the fixing plate. The cutter shank is then passed through the pressure plate, with one end inserted into a slot in the center of the fixing plate. When the pressure plate and the fixing plate are close together, a trapezoidal pressure block is inserted into a limiting groove in a connecting block located in the center of the fixing plate. This pushes the pressure block against the pressure block, causing a locking block to engage in a slot. Finally, by rotating the locking component (II), a screw is screwed into a threaded hole. Guided by the guide end, the guide rod gradually inserts into the limiting groove, pushing the connecting block and causing the pressure block to engage the locking block in the slot. This completes the secure clamping of the cutter shank, ensuring a stable cutter head during workpiece machining.

Description

Technical Field

[0001] This utility model relates to the field of composite milling cutter technology, and in particular to a multi-edge fixing device for composite milling cutters. Background Technology

[0002] A composite milling cutter is a milling cutter with a composite structure or function, mainly used to complete multiple cutting tasks simultaneously or to meet the machining needs of multiple materials.

[0003] For example, Chinese Patent Application No. CN202421104853.5 discloses a multi-edge fixing device for a composite milling cutter. Specifically, when using this device, a sliding limiting cover moves upward on the fixed plate. One end of the limiting cover slides on a groove and compresses a third spring. The third spring generates elastic force, and the limiting cover moves away from the inclined surface on the limiting rod. Under the elastic force of the first spring, the limiting rod slides outward from the fixed plate, causing the inclined surface to move outward from the inside of the fixed plate. Simultaneously, the third end of the limiting rod moves outward from the inside of the mounting groove, installing a mounting block inside the mounting groove. The mounting block presses against the arc-shaped end of the clamping rod, causing the clamping rod to move towards the fixed plate. The fixed plate slides inside and compresses the second spring. After the mounting block is fully inserted into the mounting groove, the locking rod is locked into the second slot under the elastic force of the second spring, which facilitates the initial positioning of the mounting block. The limiting cover is released, and the limiting cover presses against the inclined surface, causing the limiting rod to slide into the fixed plate while compressing the first spring. The third end of the limiting rod enters the first slot. The limiting cover continues to move, blocking the limiting rod from the outside, which facilitates the quick installation and fixing of the mounting block, thereby quickly installing the cutter head. The limiting cover is blocked from the outside of the limiting rod under the elastic force of the third spring, preventing the cutter head from falling off. However, the following technical problems still exist:

[0004] The above structure uses a third spring to push the limiting cover to limit the limiting rod. However, when the fixed plate rotates at high speed and drives the cutter head to perform cutting work, the third spring is difficult to keep stable, the limiting cover is difficult to continuously limit the limiting rod, and the cutter head is easily thrown out. It can be seen that the above structure is not stable enough in fixing the cutter head. Utility Model Content

[0005] To address the problem of insufficient stability in the fixing method of the cutter head in the prior art mentioned above, this utility model provides the following technical solution:

[0006] A multi-edge fixing device for a composite milling cutter includes a fixing disc for limiting the position of multiple cutter heads;

[0007] One end of the cutter head is equipped with a cutter bar, and the inside of the fixed plate is equipped with a plurality of locking components I for clamping the cutter bar. A pressure plate for guiding the locking components I is installed on one side of the fixed plate, and a locking component II for locking the pressure plate is installed on one side of the fixed plate.

[0008] The locking element one includes a pressure block for pushing the tool bar, and one end of the connecting block is equipped with a connecting block for cooperating with the pressure plate and the locking element two to control the movement of the pressure block.

[0009] Furthermore, the tool holder has trapezoidal grooves at both ends on one side facing the fixed plate, and one end of the trapezoidal groove has multiple slots.

[0010] Furthermore, a plurality of magnetic blocks are installed in the middle of the fixed disk.

[0011] Furthermore, a plurality of locking blocks that engage with the slot are installed at one end of the pressing block facing the slot, a limiting groove is formed in the middle of the connecting block, and a magnetic block two that magnetically attracts magnetic block one is installed at one end of the connecting block.

[0012] Furthermore, the pressure plate includes a trapezoidal pressure block for pushing the connecting block, and the trapezoidal pressure block slides within a limiting groove. The pressure plate has multiple threaded holes in its center.

[0013] Furthermore, the second locking component includes a guide rod for limiting the position of the connecting block. One end of the guide rod is machined with a guide end, and a screw that is screwed into a threaded hole is installed at one end of the guide end. A regular hexagonal block that facilitates the rotation of the screw is installed at one end of the guide rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When fixing the cutter head mounted on the tool holder, multiple locking components are placed inside the fixing plate. The tool holder is then passed through the pressure plate, with one end inserted into the central slot of the fixing plate. When the pressure plate and the fixing plate are close together, the trapezoidal pressure block is inserted into the limiting groove of the connecting block in the center of the fixing plate. This causes the connecting block to push the pressure block, which in turn causes the locking block to engage in the slot. Finally, by rotating the second locking component, the screw is screwed into the threaded hole. Guided by the guide end, the guide rod is gradually inserted into the limiting groove, pushing the connecting block and causing the pressure block to engage the locking block in the slot. This completes the secure clamping of the tool holder, making the cutter head more stable when machining the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the tool holder of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the locking component of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the second locking component of this utility model.

[0020] The following is a list of component names represented by the various reference numerals in the attached figures:

[0021] 1-Cutter head, 2-Cutter shank, 21-Trapezoidal groove, 22-Card slot, 3-Fixing plate, 31-Magnetic block one, 4-Locking component one, 41-Pressure block, 42-Card block, 43-Connecting block, 44-Magnetic block two, 45-Limiting groove, 5-Pressure plate, 51-Trapezoidal pressure block, 52-Threaded hole, 6-Locking component two, 61-Smooth rod, 62-Screw rod, 63-Guide end, 64-Regular hexagonal block. Detailed Implementation

[0022] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0023] Please see Figures 1-4 This utility model provides a multi-edge fixing device for composite milling cutters, which can fix multiple cutter heads 1 to ensure that the cutter heads 1 remain stable and are not easily loosened or detached during workpiece machining. It includes a fixing plate 3 for limiting the multiple cutter heads 1. A cutter shank 2 is fixedly installed at one end of each cutter head 1. The fixing plate 3 has a slot inside for inserting the cutter shank 2, so that multiple cutter heads 1 can be inserted into the slot in the middle of the fixing plate 3 when installing them.

[0024] Multiple magnetic blocks 31 are installed in the middle of the fixed plate 3. The tool bar 2 has trapezoidal grooves 21 at both ends on one side facing the fixed plate 3. The two sides of the trapezoidal groove 21 are inclined. Multiple slots 22 are opened at one end of the groove cavity of the trapezoidal groove 21. The opening of multiple slots 22 makes it easy to clamp and stabilize the tool bar 2.

[0025] The fixed plate 3 has multiple locking elements 4 installed inside to clamp the tool holder 2, and the locking elements 4 are symmetrically arranged on both sides of the tool holder 2. The tool holder 2 is easily clamped by the two symmetrically arranged locking elements 4. A pressure plate 5 is installed on one side of the fixed plate 3 to guide the locking elements 4, and a second locking element 6 is installed on the other side of the fixed plate 3 to lock the pressure plate 5.

[0026] Locking component 4 includes a pressure block 41 for pushing the tool bar 2. Multiple locking blocks 42 that engage with the slot 22 are fixedly installed on the end of the pressure block 41 facing the slot 22. The side of the pressure block 41 facing the tool bar 2 is a trapezoidal block with inclined sides on both sides. By setting the trapezoidal block, after the tool bar 2 is inserted into the middle slot of the fixed plate 3, the pressure block 41, guided by the trapezoidal slot 21, can quickly insert the locking blocks 42 into the slot 22, thus completing the clamping operation of the tool bar 2.

[0027] One end of the pressure block 41 is equipped with a connecting block 43 for cooperating with the pressure plate 5 and the locking element 6 to control the movement of the pressure block 41. A limit groove 45 is opened in the middle of the connecting block 43. One end of the connecting block 43 is equipped with a magnetic block 44 that is magnetically attracted by a magnetic block 31. By magnetically attracting the magnetic block 44 by the magnetic block 31, it is easy to control the pressure block 41 away from the trapezoidal groove 21, so as to facilitate the quick disassembly of the cutter head 1 on which the cutter bar 2 is installed.

[0028] The pressure plate 5 includes a trapezoidal pressure block 51 for pushing the connecting block 43, and the trapezoidal pressure block 51 slides in the limiting groove 45. Multiple trapezoidal pressure blocks 51 are installed in the middle of the pressure plate 5. The trapezoidal pressure blocks 51 are used to push the locking member 4 in the middle of the fixed plate 3. The locking member 6 is used to push the locking member 4 on the side of the fixed plate 3. Multiple threaded holes 52 are opened in the middle of the pressure plate 5. When the locking member 6 is screwed into the threaded hole 52, the pressure plate 5 can be fixed to one side of the fixed plate 3.

[0029] Locking component 2 6 includes a guide rod 61 for limiting the connection block 43. One end of the guide rod 61 is machined with a guide end 63. The guide end 63 facilitates the gradual pushing of the pressure block 41 toward the tool bar 2. One end of the guide end 63 is fixedly installed with a screw 62 that is screwed into the threaded hole 52. The outer diameter of the guide rod 61 is larger than the outer diameter of the screw 62. One end of the guide rod 61 is fixedly installed with a regular hexagonal block 64 that facilitates the rotation of the screw 62.

[0030] When fixing the cutter head 1 installed on the tool holder 2, multiple locking parts 4 are placed in the fixing plate 3. Then, the tool holder 2 is passed through the pressure plate 5, so that one end of the tool holder 2 is inserted into the middle slot of the fixing plate 3. When the pressure plate 5 and the fixing plate 3 are close together, the trapezoidal pressure block 51 is inserted into the limiting groove 45 of the connecting block 43 in the middle of the fixing plate 3, so that the connecting block 43 pushes the pressure block 41, causing the locking block 42 to be locked into the slot 22. Finally, the hexagonal block 64 is rotated by the wrench, so that the screw 62 is screwed into the threaded hole 52. Under the guidance of the guide end 63, the guide rod 61 is gradually inserted into the limiting groove 45, pushing the connecting block 43, so that the pressure block 41 drives the locking block 42 to be locked into the slot 22, thus completing the stable clamping of the tool holder 2, making the cutter head 1 more stable when processing the workpiece.

[0031] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A multi-edge fixing device for a composite milling cutter, comprising a fixing disc (3) for limiting the position of multiple cutter heads (1), characterized in that: One end of the cutter head (1) is equipped with a cutter bar (2), and the inside of the fixed plate (3) is equipped with a plurality of locking parts (4) for clamping the cutter bar (2). A pressure plate (5) for guiding the locking parts (4) is installed on one side of the fixed plate (3), and a locking part (6) for locking the pressure plate (5) is installed on one side of the fixed plate (3). The locking element one (4) includes a pressure block (41) for pushing the tool bar (2), and a connecting block (43) is installed at one end of the pressure block (41) for cooperating with the pressure plate (5) and the locking element two (6) to control the movement of the pressure block (41).

2. The multiple flute fixing device of a composite milling cutter according to claim 1, characterized in that: The tool bar (2) has trapezoidal grooves (21) at both ends on the side facing the fixed plate (3), and multiple slots (22) are provided at one end of the groove cavity of the trapezoidal groove (21).

3. The composite milling cutter multi-edge fixing device according to claim 2, characterized in that: Multiple magnetic blocks (31) are installed in the middle of the fixed disk (3).

4. The composite milling cutter multi-edge fixing device according to claim 3, characterized in that: The pressure block (41) has a plurality of card blocks (42) that engage with the card slot (22) at one end facing the card slot (22). A limiting groove (45) is provided in the middle of the connecting block (43). A magnetic block two (44) that magnetically attracts magnetic block one (31) is installed at one end of the connecting block (43).

5. The composite milling cutter multi-edge fixing device according to claim 4, characterized in that: The pressure plate (5) includes a trapezoidal pressure block (51) for pushing the connecting block (43), and the trapezoidal pressure block (51) slides in the limiting groove (45). The pressure plate (5) has a plurality of threaded holes (52) in the middle.

6. The composite milling cutter multi-edge fixing device according to claim 5, characterized in that: The second locking component (6) includes a light rod (61) for limiting the connection block (43). One end of the light rod (61) is machined with a guide end (63). One end of the guide end (63) is equipped with a screw (62) that is screwed into the threaded hole (52). One end of the light rod (61) is equipped with a regular hexagonal block (64) that facilitates the rotation of the screw (62).

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