Novel multifunctional composite boring cutter

Abstract

The utility model discloses a novel multifunctional composite boring cutter, which belongs to the technical field of cutters, and comprises a boring cutter handle mounted on a main shaft of a boring machine; the tool apron is mounted on the boring tool handle, and the transverse distance between the tool apron and the boring tool handle is finely adjusted through a fine adjustment device on the tool apron; the mounting block is slidably connected to the end, away from the boring cutter handle, of the cutter holder, the sliding direction of the mounting block is perpendicular to the axial direction of the boring cutter handle and is consistent with the moving direction of the cutter holder, and a locking assembly is arranged between the mounting block and the cutter holder and used for locking the position of the mounting block; the two cutter bars are detachably connected with the mounting block, and the cutter heads are mounted at the tail ends of the two cutter bars; according to the boring cutter, under the condition that the boring cutter handle is clamped at a time, finish machining of an inner hole, an inner hole end face and an inner hole reverse end face within the ultra-large range from a small hole diameter to a large hole diameter can be completed only by replacing the corresponding cutter bar and the corresponding cutter head, and the machining efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting tools, and particularly relates to a new type of multi-functional composite boring tool. Background Art

[0002] A boring tool is a kind of boring cutting tool, generally with a round shank, and there is also a larger square tool shank used on vertical lathes. It can be used on boring machines, lathes or milling machines, and is mainly used for internal hole machining, reaming, profiling, etc.

[0003] Currently, for the boring tools in the prior art, when machining holes of different sizes on a boring and milling machine, when machining different holes or holes of different sizes, it is necessary to remove the whole tool from the boring machine and replace the corresponding type of tool. In this way, operations such as replacing the tool and aligning the tool will be repeated, resulting in low efficiency and easily affecting the machining accuracy of the workpiece. Summary of the Utility Model

[0004] The embodiment of the utility model provides a new type of multi-functional composite boring tool to solve the problems in the prior art.

[0005] The embodiment of the utility model adopts the following technical scheme: A new type of multi-functional composite boring tool, comprising: a boring tool shank, installed on the main shaft of a boring machine; a tool holder, installed on the boring tool shank, and the lateral distance between the tool holder and the boring tool shank is finely adjusted through a fine adjuster on the tool holder; a mounting block, slidably connected to one end of the tool holder away from the boring tool shank, the sliding direction of the mounting block is perpendicular to the axial direction of the boring tool shank and consistent with the moving direction of the tool holder, and a locking component is provided between the mounting block and the tool holder for locking the position of the mounting block; two tool bars, both detachably connected to the mounting block, and tool heads are installed at the ends of both tool bars; one of the tool bars is installed at one end of the mounting block away from the tool holder, and the axial direction of this tool bar is consistent with the axial direction of the boring tool shank; the other tool bar is installed on the side of the mounting block, and the axial direction of this tool bar is consistent with the sliding direction of the mounting block.

[0006] Preferably, a first mounting hole for inserting and mating with one of the tool bars is provided at one end of the mounting block away from the tool holder, and a first threaded hole extending into the first mounting hole is further provided on the mounting block. A first screw is threadedly connected in the first threaded hole, and the first screw abuts against the outer peripheral wall of one of the tool bars to fix the tool bar.

[0007] Preferably, a second mounting hole for inserting and mating with the other tool bar is provided on the side of the mounting block, and a second threaded hole extending into the second mounting hole is further provided on the mounting block. A second screw is threadedly connected in the second threaded hole, and the second screw abuts against the outer peripheral wall of the other tool bar to fix the tool bar.

[0008] Preferably, a flat surface is provided on the outer peripheral wall of each end of the tool bar away from the corresponding tool head.

[0009] Preferably, a chute is provided at one end of the tool holder away from the boring tool shank, and a sliding block that is slidably engaged with the chute is provided on the mounting block, thereby realizing the sliding connection between the tool holder and the mounting block.

[0010] Preferably, the locking assembly includes a plurality of fastening screws. An installation surface is provided on the side of the tool holder, and a plurality of third threaded holes extending perpendicular to the chute direction into the chute are provided on the installation surface. The plurality of fastening screws are respectively threadedly connected to the plurality of third threaded holes, and each fastening screw abuts against the sliding block to lock the mounting block.

[0011] Preferably, the cutting head is installed on the corresponding tool bar through a locking screw.

[0012] The above at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0013] The multi-functional composite boring tool of the present invention can, under the condition of clamping the boring tool shank once, only need to replace the corresponding tool bar and cutting head to complete the finish machining of the inner hole, inner hole end face, and inner hole reverse end face within a very large range from a small hole diameter to a large hole diameter, which is beneficial to improving the machining efficiency and does not require the staff to repeatedly clamp the boring tool shank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 is an exploded view of the tool holder and the mounting block of the present invention;

[0017] Figure 3 is a three-dimensional structural sectional view of the mounting block and the tool bar of the present invention;

[0018] Figure 4 is an exploded view of the mounting block and two tool bars of the present invention.

[0019] REFERENCE MARKS

[0020] 1 - Boring tool shank; 2 - Tool holder; 21 - Slide groove; 22 - Mounting surface; 23 - Third threaded hole; 3 - Micrometer; 4 - Mounting block; 41 - First mounting hole; 42 - First threaded hole; 43 - First screw; 44 - Second mounting hole; 45 - Second threaded hole; 46 - Second screw; 47 - Slide block; 5 - Locking assembly; 51 - Fastening screw; 6 - Tool bar; 61 - Tool tip; 62 - Plane; 63 - Locking screw. Detailed implementation mode

[0021] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the specific embodiments and corresponding drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] The following will detail the technical solutions provided by each embodiment of the present utility model in conjunction with the drawings.

[0023] Refer to Figures 1 to 4 As shown, the embodiment of the present utility model provides a new type of multi-functional composite boring tool, and the main structure includes a boring tool shank 1, a tool holder 2, a mounting block 4 and a tool bar 6.

[0024] The boring tool shank 1 is installed on the boring machine spindle; the tool holder 2 is installed on the boring tool shank 1, and the lateral distance between the tool holder 2 and the boring tool shank 1 is finely adjusted by the micrometer 3 on the tool holder 2 (the micrometer 3 is a prior art, and the specific principle can refer to the Kyushu boring tool shank 1 of the brand KYUSHUKOGU, model BHB - 125).

[0025] The mounting block 4 is slidably connected to one end of the tool holder 2 away from the boring tool shank 1. The sliding direction of the mounting block 4 is perpendicular to the axial direction of the boring tool shank 1 and is consistent with the moving direction of the tool holder 2. And a locking assembly 5 is provided between the mounting block 4 and the tool holder 2 to lock the position of the mounting block 4; in some practical applications, such as Figure 2 As shown, a slide groove 21 is provided at one end of the tool holder 2 away from the boring tool shank 1, and a slide block 47 slidably engaged with the slide groove 21 is provided on the mounting block 4, so as to realize the sliding connection between the tool holder 2 and the mounting block 4; the locking assembly 5 includes a plurality of fastening screws 51. An installation surface 22 is provided on the side of the tool holder 2, and a plurality of third threaded holes 23 extending perpendicular to the slide groove 21 into the slide groove 21 are provided on the installation surface 22. The plurality of fastening screws 51 are respectively threadedly connected to the plurality of third threaded holes 23, and each fastening screw 51 abuts against the slide block 47 to lock the mounting block 4.

[0026] AsFigure 1 , Figure 3 and Figure 4 As shown in Figure 1 , Figure 3 and Figure 4 , the tool bar 6 is provided with two and is detachably connected to the mounting block 4, and the ends of the two tool bars 6 are both installed with tool heads 61; one of the tool bars 6 is installed at one end of the mounting block 4 away from the tool holder 2, and the axis of this tool bar 6 is consistent with the axis of the boring tool shank 1; the other tool bar 6 is installed on the side of the mounting block 4, and the axis of this tool bar 6 is consistent with the sliding direction of the mounting block 4.

[0027] When actually using the multifunctional composite boring tool, the boring tool shank 1 is installed on the boring machine spindle. The tool head 61 uses a clamped blade, and the tool head 61 is installed on the corresponding tool bar 6 through a locking screw 63. The tool bar 6 and the tool head 61 on the side are mainly used for machining large-aperture parts. The position of the tool bar 6 on the side is roughly adjusted by moving the slider 47 and fixed by the locking assembly 5, and then the position of the tool holder 2 is finely adjusted by the fine adjuster 3, that is, the fine adjustment of the position of the tool bar 6 is realized. Thus, in one clamping process of the boring tool shank 1, by changing the radial elongation of the tool head 61 on the side, the finish boring of different apertures can be achieved. The tool bar 6 and the tool head 61 with the same axis as the tool holder 2 are mainly used for machining small apertures and machining reverse stepped holes. When machining reverse stepped holes, the tool bar 6 directly extends out of the through hole to machine the back of the part, which can avoid the need to rotate or flip the workpiece for repositioning and clamping; it should be noted that when machining large apertures or small apertures or reverse stepped holes, only one tool bar 6 and tool head 61 can exist on the mounting block 4 at the same time, that is, when performing one machining, the other tool bar 6 needs to be removed from the mounting block 4.

[0028] In summary, the multifunctional composite boring tool can, under one clamping of the boring tool shank 1, complete the finish machining of the inner hole, inner hole end face, and inner hole reverse end face in a very large range from small aperture to large aperture only by replacing the corresponding tool bar 6 and tool head 61, which is beneficial to improving the machining efficiency and does not require the staff to repeatedly clamp the boring tool shank 1.

[0029] In addition, when the ordinary boring tool in the prior art performs aperture machining, it generally adjusts within a small range of diameters (such as hole machining with a diameter range of φ50 - φ80mm), or for hole machining with a diameter range of φ100 - φ130mm, or for hole machining with a diameter range of φ150 - φ200. This way results in a small adjustable range and poor applicability of a tool during machining; while the composite boring tool described in this application can, under one clamping, only replace the tool bar 6 and tool head on the side of the mounting block or adjust the lateral position of the tool bar 6, and can be used for machining holes with an extremely large aperture range of φ50 - φ200, with a wider range of adaptable apertures. In some complex machining occasions with multiple holes, it can reduce the tool change amount to a certain extent and improve the working efficiency.

[0030] In some practical applications, such as Figure 2 , Figure 3 and Figure 4 shown, one end of the mounting block 4 away from the tool holder 2 is provided with a first mounting hole 41 which is inserted and matched with one of the tool bars 6. The mounting block 4 is further provided with a first threaded hole 42 extending into the first mounting hole 41. A first screw 43 is threadedly connected in the first threaded hole 42. The tool bar 6 is fixed by the first screw 43 abutted against the outer peripheral wall of one of the tool bars 6.

[0031] In some practical applications, a second mounting hole 44 which is inserted and matched with the other tool bar 6 is provided on the side of the mounting block 4. The mounting block 4 is further provided with a second threaded hole 45 extending into the second mounting hole 44. A second screw 46 is threadedly connected in the second threaded hole 45. The tool bar 6 is fixed by the second screw 46 abutted against the outer peripheral wall of the other tool bar 6.

[0032] In addition, a flat surface 62 (such as Figure 4 ) can be provided on the outer peripheral wall of each end of the tool bar 6 away from the corresponding tool tip 61. By respectively abutting the first screw 43 or the second screw 46 against the flat surface 62 of the corresponding tool bar 6, the mounting stability of the two tool bars 6 can be improved.

[0033] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A new type of multifunctional composite boring tool, characterized in that: include: A boring tool handle (1) is mounted on the spindle of the boring machine; A tool holder (2) is mounted on the boring tool handle (1), and a fine adjustment device (3) on the tool holder (2) is used to finely adjust the lateral distance between the tool holder (2) and the boring tool handle (1); A mounting block (4) is slidably connected to an end of the tool holder (2) away from the boring tool handle (1); the sliding direction of the mounting block (4) is perpendicular to the axial direction of the boring tool handle (1) and is consistent with the moving direction of the tool holder; and a locking assembly (5) is provided between the mounting block (4) and the tool holder (2) for locking the position of the mounting block (4); Two tool rods (6) are provided and are both detachably connected to the mounting block (4), and a tool head (61) is installed at the end of each of the two tool rods (6); one of the tool rods (6) is installed at an end of the mounting block (4) away from the tool seat (2), and the axial direction of the tool rod (6) is consistent with the axial direction of the boring tool handle (1); the other tool rod (6) is installed on the side of the mounting block (4), and the axial direction of the tool rod (6) is consistent with the sliding direction of the mounting block (4).

2. A novel multifunctional composite boring tool according to claim 1, characterized in that: The mounting block (4) is provided with a first mounting hole (41) at one end away from the knife seat (2) and plugged into one of the knife rods (6). The mounting block (4) is also provided with a first threaded hole (42) extending into the first mounting hole (41). A first screw (43) is connected to the inner thread of the first threaded hole (42). The first screw (43) is pressed against the outer peripheral wall of one of the knife rods (6) to fix the knife rod (6).

3. A novel multifunctional composite boring tool according to claim 1, characterized in that: A second mounting hole (44) is provided on the side of the mounting block (4) and is plugged into another knife rod (6). A second threaded hole (45) is also provided on the mounting block (4) and extends into the second mounting hole (44). A second screw (46) is connected to the inner thread of the second threaded hole (45). The second screw (46) is pressed against the outer peripheral wall of the other knife rod (6) to fix the knife rod (6).

4. A novel multifunctional composite boring tool according to claim 2 or 3, characterized in that: The outer peripheral wall of each knife rod (6) at one end away from the corresponding knife head (61) is provided with a flat surface (62).

5. A novel multifunctional composite boring tool according to claim 1, characterized in that: A slide groove (21) is provided at one end of the tool holder (2) away from the boring tool handle (1), and a sliding block (47) is provided on the mounting block (4) for sliding engagement with the slide groove (21), thereby achieving a sliding connection between the tool holder (2) and the mounting block (4).

6. A novel multifunctional composite boring tool according to claim 5, characterized in that: The locking assembly (5) comprises a plurality of fastening screws (51); a mounting surface (22) is provided on the side of the knife seat (2); and a plurality of third threaded holes (23) extending into the slide groove (21) in a direction perpendicular to the slide groove (21) are provided on the mounting surface (22); the plurality of fastening screws (51) are respectively threadedly connected in the plurality of third threaded holes (23), and each fastening screw (51) abuts against the slider (47) to lock the mounting block (4).

7. A novel multifunctional composite boring tool according to claim 1, characterized in that: The cutter head (61) is mounted on the corresponding cutter bar (6) via a locking screw (63).

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