Multi-cutting-edge fixing device for composite milling cutter

Abstract

The utility model provides a compound milling cutter multi-cutting-edge fixing device which comprises a cutter bar, a fixing disc is fixedly arranged at one end of the cutter bar, four cutter heads are installed in the end face of one end of the fixing disc through an installation mechanism, the installation mechanism comprises an installation groove, and the installation groove is formed in the end face of the fixing disc. And under the combined action of a clamping rod and a limiting rod, a mounting block is conveniently and rapidly mounted and fixed, so that the tool bit is rapidly mounted, a limiting cover is blocked on the outer side of the limiting cover under the elastic force of a third spring, the situation that the tool bit falls off is avoided, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of compound milling cutters, in particular to a multi-edge fixing device for a compound milling cutter. Background Art

[0002] The Chinese utility model patent with announcement number CN211438273U proposes a detachable multi-edge fixing structure for a PCD composite milling cutter, including a fixing disk, a fixing joint and a nut. The fixing disk surface is provided with a fixing joint, and the outer side of the fixing joint is provided with an external thread. A limiting cylinder is provided in the fixing disk, and a collet is movably installed in the limiting cylinder, and a clamping groove is provided on the outer surface of the collet.

[0003] The above technical solution squeezes the collet through the threaded installation action of the nut and the connector, thereby installing and fixing the tool rod and the tool head through the collet and the clamping groove. However, the nut may rotate, causing the tool rod to fall from the inside of the collet, which has low safety.

[0004] To this end, the utility model provides a composite milling cutter multi-edge fixing device. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a multi-edge fixing device for a composite milling cutter to solve the problems raised in the above-mentioned background technology. The joint action of the clamping rod and the limit rod in the utility model facilitates the quick installation and fixation of the mounting block, thereby quickly installing the cutter head. The limit cover is blocked on the outside of the limit under the elastic force of the third spring to avoid the cutter head from falling, and has high safety.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a composite milling cutter multi-edge fixing device, including a tool rod, a fixed disk is fixedly arranged at one end of the tool rod, four tool heads are installed inside the end surface of one end of the fixed disk through a mounting mechanism, the mounting mechanism includes a mounting groove, the mounting groove is opened inside the end surface of the fixed disk, one end of the four tool heads are fixed with a mounting block, the mounting block is installed inside the mounting groove, limiting mechanisms are arranged on both sides of the mounting groove, the limiting mechanism includes a limiting rod, and a limiting cover is arranged on the outer side of the fixed disk.

[0007] Furthermore, a groove is formed at one end of the fixing plate, and one end of the limiting cover is slidably mounted inside the groove.

[0008] Furthermore, a third spring is fixedly installed between the limiting cover and the side wall of the groove, and the third spring is sleeved on the outer side of the groove.

[0009] Furthermore, the limiting rod is in a "T" shape, and the limiting rod is slidingly arranged on one side of the mounting groove, and a first spring is fixedly installed between one end of the limiting rod and the inner wall of the fixing plate.

[0010] Furthermore, a first slot is formed on one side of the mounting block, and the other end of the limiting rod is mounted in the first slot.

[0011] Furthermore, a slope is formed on the third end of the limiting rod, and the inner wall of the limiting cover contacts the slope.

[0012] Furthermore, a clamping rod is provided on the other side of the installation groove for limiting sliding. The clamping rod is in a "T" shape, and one end of the clamping rod is in an arc shape.

[0013] Furthermore, a second spring is fixedly arranged between the clamping rod and the inner wall of the fixed plate, a second clamping groove is opened on the other side of the mounting block, the arc-shaped end of the clamping rod is clamped inside the second clamping groove, and the second clamping groove and the first clamping groove are arranged on the opposite side of the mounting block.

[0014] The beneficial effects of the utility model are as follows: the clamping rod of the composite milling cutter multi-edge fixing device of the utility model can be clamped inside the second clamping groove under the elastic force of the second spring, so that the mounting block can be limited, and the inclined surface is squeezed by the limiting cover so that one end of the limiting rod is clamped inside the first clamping groove, which is convenient for quick installation and fixation of the mounting block, thereby quickly installing the cutter head, and the limiting cover is blocked on the outside of the limiting rod under the elastic force of the third spring to avoid the cutter head from falling, and the safety is high; the mounting groove and the mounting block are used together to improve the stability of the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a multi-edge fixing device for a composite milling cutter of the utility model;

[0016] Figure 2 It is a front cross-sectional view of a composite milling cutter multi-edge fixing device of the utility model;

[0017] Figure 3 This is a structural diagram of a cutter bar and a fixing plate of a composite milling cutter multi-edge fixing device of the utility model;

[0018] Figure 4 This is a structural diagram of a limit rod and a cutter head of a composite milling cutter multi-edge fixing device of the utility model;

[0019] In the figure: 1, knife bar; 2, fixed plate; 3, knife head; 4, mounting block; 5, mounting groove; 6, limit cover; 7, groove; 8, limit rod; 9, first spring; 10, clamping rod; 11, third spring; 12, first clamping groove. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a multi-edge fixing device for a composite milling cutter, comprising a tool rod 1, a fixing plate 2 is fixedly arranged at one end of the tool rod 1, four cutter heads 3 are installed inside the end surface of one end of the fixing plate 2 through a mounting mechanism, the mounting mechanism comprises a mounting groove 5, the mounting groove 5 is arranged inside the end surface of the fixing plate 2, one end of the four cutter heads 3 are fixed with a mounting block 4, the mounting block 4 is installed inside the mounting groove 5, limiting mechanisms are arranged on both sides of the mounting groove 5, the limiting mechanisms comprise limiting rods 8, a limiting cover 6 is arranged on the outer side of the fixing plate 2, and the coordinated installation of the mounting block 4 and the mounting groove 5 can improve the stability of the cutter head 3.

[0022] In this embodiment, a groove 7 is formed at one end of the fixed disk 2, and one end of the limit cover 6 is slidably installed inside the groove 7. A third spring 11 is fixedly installed between the limit cover 6 and the side wall of the groove 7. The third spring 11 is sleeved on the outer side of the groove 7. The limit cover 6 can be installed on the outer side of the fixed disk 2 under the elastic force of the third spring 11, so as to facilitate the subsequent limiting of the limit rod 8.

[0023] In this embodiment, the shape of the limit rod 8 is "T"-shaped, and the limit rod 8 is limitedly slidably arranged on one side of the mounting groove 5. A first spring 9 is fixedly installed between one end of the limit rod 8 and the inner wall of the fixed plate 2. A first slot 12 is provided on one side of the mounting block 4, and the other end of the limit rod 8 is clamped and installed inside the first slot 12. A slope is provided on the third end of the limit rod 8, and the inner wall of the limit cover 6 contacts the slope. The limit cover 6 can squeeze the limit rod 8 through the slope, and one end of the limit rod 8 enters the first slot 12, so that the mounting block 4 can be fixed and the stability of the mounting block 4 is improved. The first spring 9 is provided to facilitate the limit rod 8 to rebound and one end of it slides out from the inside of the first slot 12, so as to facilitate the subsequent disassembly of the mounting block 4.

[0024] In this embodiment, a clamping rod 10 is provided on the other side of the mounting groove 5 for limiting sliding. The shape of the clamping rod 10 is "T"-shaped, and the shape of one end of the clamping rod 10 is arc-shaped. A second spring is fixedly provided between the clamping rod 10 and the inner wall of the fixed plate 2. A second clamping groove is provided on the other side of the mounting block 4. The arc-shaped end of the clamping rod 10 is clamped in the inside of the second clamping groove. The second clamping groove and the first clamping groove 12 are arranged on the opposite side of the mounting block 4. The clamping rod 10 is clamped in the inside of the second clamping groove under the elastic force of the second spring, which can preliminarily limit the mounting block 4 and prevent the mounting block 4 from falling.

[0025] When the composite milling cutter multi-edge fixing device is used, the sliding limit cover 6 is moved on the fixed disk 2, one end of the limit cover 6 slides on the groove 7 and compresses the third spring 11, the third spring 11 generates elastic force, and the limit cover 6 moves away from the inclined surface on the limit rod 8, the limit rod 8 slides toward the outside of the fixed disk 2 under the elastic force of the first spring 9, so that the inclined surface moves out from the inside of the fixed disk 2, and at the same time, the third end of the limit rod 8 moves out from the inside of the mounting groove 5, and the mounting block 4 is installed in the inside of the mounting groove 5. The mounting block 4 squeezes the arc-shaped end of the clamping rod 10, so that the clamping rod 10 slides toward the inside of the fixed disk 2 and compresses the second spring. After the mounting block 4 completely enters the inside of the mounting groove 5, the clamping rod 1 0 is inserted into the inside of the second slot under the elastic force of the second spring, which is convenient for preliminary limiting of the mounting block 4, loosening the limiting cover 6, and squeezing the inclined surface through the limiting cover 6, so that the limiting rod 8 slides toward the inside of the fixed disk 2 and compresses the first spring 9, and the third end of the limiting rod 8 enters the inside of the first slot 12, and the limiting cover 6 continues to be moved to block the limiting cover 6 on the outside of the limiting rod 8, which is convenient for quick installation and fixation of the mounting block 4, thereby quickly installing the cutter head 3. The limiting cover 6 is blocked on the outside of the limiting rod 8 under the elastic force of the third spring 11 to avoid the cutter head 3 from falling, and the safety is high; the mounting slot 5 and the mounting block 4 are used together to improve the stability of the cutter head 3.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A composite milling cutter multi-edge fixing device, comprising a cutter bar (1), characterized in that: A fixing plate (2) is fixedly arranged at one end of the knife rod (1); four knife heads (3) are installed inside the end surface of one end of the fixing plate (2) through a mounting mechanism; the mounting mechanism comprises a mounting groove (5); the mounting groove (5) is arranged inside the end surface of the fixing plate (2); one end of each of the four knife heads (3) is fixed with a mounting block (4); the mounting block (4) is installed inside the mounting groove (5); limiting mechanisms are arranged on both sides of the mounting groove (5); the limiting mechanisms comprise limiting rods (8); and a limiting cover (6) is arranged outside the fixing plate (2).

2. A composite milling cutter multi-edge fixing device according to claim 1, characterized in that: A groove (7) is formed at one end of the fixing plate (2), and one end of the limiting cover (6) is slidably mounted inside the groove (7).

3. A composite milling cutter multi-edge fixing device according to claim 2, characterized in that: A third spring (11) is fixedly installed between the limiting cover (6) and the side wall of the groove (7), and the third spring (11) is sleeved on the outside of the groove (7).

4. The multi-edge fixing device for a composite milling cutter according to claim 1, characterized in that: The limiting rod (8) is in a "T" shape and is slidably arranged on one side of the mounting groove (5). A first spring (9) is fixedly installed between one end of the limiting rod (8) and the inner wall of the fixing plate (2).

5. A composite milling cutter multi-edge fixing device according to claim 4, characterized in that: A first slot (12) is provided on one side of the mounting block (4), and the other end of the limiting rod (8) is mounted in the first slot (12).

6. A composite milling cutter multi-edge fixing device according to claim 5, characterized in that: The third end of the limiting rod (8) is provided with an inclined surface, and the inner wall of the limiting cover (6) is in contact with the inclined surface.

7. A composite milling cutter multi-edge fixing device according to claim 6, characterized in that: A clamping rod (10) is provided on the other side of the installation groove (5) for limiting sliding. The clamping rod (10) is in a "T" shape, and one end of the clamping rod (10) is in an arc shape.

8. The multi-edge fixing device for a composite milling cutter according to claim 7, characterized in that: A second spring is fixedly arranged between the clamping rod (10) and the inner wall of the fixed plate (2); a second clamping groove is opened on the other side of the mounting block (4); the arc-shaped end of the clamping rod (10) is clamped inside the second clamping groove; the second clamping groove and the first clamping groove (12) are arranged on the opposite side of the mounting block (4).

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