An adjustable composite boring tool

Abstract

The utility model is applicable to the technical field of machine tool tools and provides an adjustable boring compound tool, comprising a tool holder, one end of the tool holder is connected to a compound tool holder, the compound tool holder comprises a boring tool holder and an auxiliary tool holder, the auxiliary tool holder is provided with a plurality of auxiliary tool clamps in an annular shape, the auxiliary tool clamps are respectively provided with a first external chamfering tool head, a second external chamfering tool head, an internal chamfering tool head and an end face tool head, the boring tool holder is provided with a tool clamp slide groove, a boring tool clamp is slidably provided in the tool clamp slide groove, the boring tool clamp is provided with a boring tool head, the eccentricity of the boring tool head can be adjusted by the tool clamp adjusting screw, so that holes of different sizes can be processed, and by integrating a plurality of tool heads, the tool can be used to process the end face and the inner and outer side wall edges of the hole while boring, thereby improving the processing efficiency, and by using the first external chamfering tool head and the second external chamfering tool head in different positions, the chamfering processing of the outer side wall of the hole in a wider diameter range can be satisfied, thereby improving the application range of the tool.

Description

Technical Field

[0001] The utility model is applicable to the technical field of machine tool cutters and provides an adjustable boring compound cutter. Background Art

[0002] The processing of holes in mechanical machining is generally achieved by using a machine tool with a boring cutter. The boring cutter is usually fixed with a tool holder and a tool holder, and then the tool is brought close to the workpiece to process the hole. Usually, after the hole is processed, the inner and outer wall edges of the hole end need to be chamfered and the hole end face processed. In the traditional processing process, each processing step is generally completed in sequence by replacing different types of processing tool heads. The switching speed of ordinary lathe tool heads is slow. If a CNC machine tool with automatic tool change is used, the processing cost will increase. At the same time, even for CNC machine tools, the processing steps must be carried out in sequence, and the processing efficiency will be reduced, which further increases the processing cost. Utility Model Content

[0003] To this end, the utility model provides an adjustable boring compound tool, by compositely installing a boring tool head for processing holes, a chamfering tool head for processing internal and external chamfers, and an end face tool head for processing the end face of the hole on the same tool, so that the tool can chamfer and smooth the end face of the end and the inner and outer edges while processing the inner hole.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable boring compound tool, comprising a tool handle, one end of the tool handle is fixedly connected to a composite tool holder, the composite tool holder comprises a boring tool holder and an auxiliary tool holder, one end of the auxiliary tool holder is fixedly connected to the tool handle, the end of the auxiliary tool holder away from the tool handle is fixedly connected to the boring tool holder, the auxiliary tool holder is annularly provided with a plurality of auxiliary tool clamps, the aforementioned plurality of auxiliary tool clamps are respectively fixedly provided with an external chamfering tool head, an internal chamfering tool head and an end face tool head, the boring tool holder is slidably provided with a boring tool clamp, one end of the boring tool clamp is fixedly provided with a boring head, and the boring tool clamp is threadedly screwed with at least one locking screw.

[0005] Furthermore, the auxiliary tool holder is slidably arranged on the auxiliary tool seat, and the auxiliary tool holder is threadedly screwed with at least one locking screw.

[0006] Furthermore, there are two external chamfering tool heads, which are respectively referred to as a first external chamfering tool head and a second external chamfering tool head. The distance between the first external chamfering tool head and the central axis of the tool handle is smaller than the distance between the second external chamfering tool head and the central axis of the tool handle.

[0007] Furthermore, the boring tool seat is provided with a tool clamp slide groove, the boring tool clamp is slidably arranged in the tool clamp slide groove, and a tool clamp adjusting screw is arranged between the bottom surface of the boring tool clamp and the bottom surface of the tool clamp slide groove.

[0008] Furthermore, thread segments with opposite rotation directions are respectively arranged at both ends of the tool holder adjusting screw, and the tool holder adjusting screw is respectively threadedly connected with the bottom of the boring tool holder and the bottom of the tool holder sliding groove through the thread segments at both ends.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the solution of the utility model, the external chamfering cutter head, the internal chamfering cutter head, the end face cutter head and the boring cutter head are installed at the same time through the composite cutter holder. By integrating multiple cutters, the cutter can process the end face and the inner and outer side wall edges of the hole while boring, thereby improving the processing efficiency;

[0011] 2. The eccentricity of the boring cutter head can be adjusted through the tool holder adjusting screw, so that the tool can perform boring processing of different diameters according to requirements. At the same time, through two external chamfering heads in different positions, it can meet the chamfering processing of the outer wall of the hole in a wider range, thereby improving the application range of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural front view of an adjustable composite boring tool mentioned in the utility model;

[0013] Figure 2 for Figure 1 A top view of the structure of an adjustable composite boring tool;

[0014] Figure 3 for Figure 1 The left view of the structure of an adjustable compound boring tool;

[0015] Figure 4 It is a processing schematic diagram between the adjustable boring compound tool and the workpiece to be processed when processing a hole with a diameter of 70 mm mentioned in the embodiment;

[0016] Figure 5 for Figure 4 A schematic diagram of another angle between the adjustable boring compound tool and the workpiece to be processed when processing a hole with a diameter of 70 mm mentioned in the figure;

[0017] Figure 6 It is a processing schematic diagram of the adjustable composite boring tool and the workpiece to be processed when processing a hole with a diameter of 82 mm mentioned in the embodiment;

[0018] Figure 7 for Figure 6 A schematic diagram of another angle between the adjustable boring compound tool and the workpiece to be machined when machining a hole with a diameter of 82 mm mentioned in FIG.

[0019] In the figure: 1. tool handle, 2. boring tool holder, 3. auxiliary tool holder, 4. auxiliary tool clamp, 5. end face cutter head, 6. inner chamfering cutter head, 7. first outer chamfering cutter head, 8. second outer chamfering cutter head, 9. boring tool clamp, 10. boring hole cutter head, 11. tool clamp adjusting screw, 12. workpiece to be processed. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] For example, see the attached Figure 1 ~Attached Figure 3 The utility model provides an adjustable boring compound tool, including a tool handle 1, one end of the tool handle 1 is fixedly connected to a compound tool holder, the compound tool holder includes a boring tool holder 2 and an auxiliary tool holder 3, one end of the auxiliary tool holder 3 is fixedly connected to the tool handle 1, and the end of the auxiliary tool holder 3 away from the tool handle 1 is fixedly connected to the boring tool holder 2, the auxiliary tool holder 3 is annularly provided with a plurality of auxiliary tool clamps 4, the auxiliary tool clamps 4 are slidably arranged on the auxiliary tool holder 3, the auxiliary tool clamps 4 are threadedly screwed with at least one locking screw, and the auxiliary tool clamps 4 are fixed to the auxiliary tool holder 3 by the locking screw after sliding to adjust the position, the aforementioned A plurality of auxiliary tool holders 4 are respectively fixedly provided with a first external chamfering cutter head 7, a second external chamfering cutter head 8, an internal chamfering cutter head 6 and an end face cutter head 5, wherein the distance between the first external chamfering cutter head 7 and the central axis of the tool handle 1 is smaller than the distance between the second external chamfering cutter head 8 and the central axis of the tool handle 1. The two external chamfering cutter heads with different distances from the central axis of the tool handle 1 are adopted because the blade length of a single external chamfering cutter head is limited, and in the adjustment of the auxiliary tool holder 4, the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, so the single external chamfering cutter head can meet a limited range of machining apertures, for example, in the auxiliary tool holder 4, the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, so the single external chamfering cutter head can meet a limited range of machining apertures, for example, in the auxiliary tool holder 4, the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, so the single external chamfering cutter head can meet a limited range of machining apertures, for example, in the auxiliary tool holder 4, the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, and thus ... auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, and thus the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, and thus the auxiliary tool holder 4 can only move in a direction parallel to the rotation axis, and thus the auxiliary tool holder 4 Figure 4 In the embodiment, when machining an inner hole with a diameter of 70 mm, the outer chamfering is performed by the first outer chamfering cutter head 7, and the blade of the first outer chamfering cutter head 7 can cover the entire outer chamfering processing surface. At this time, if the second outer chamfering cutter head 8 is moved to the outer chamfering processing position, it will be found that due to the large distance between the second outer chamfering cutter head 8 and the central axis of the tool holder 1, the blade of the second outer chamfering cutter head 8 cannot completely cover the outer chamfering processing surface at this time. When machining as shown in the attached figure, Figure 6When machining the inner hole with a diameter of 82 mm as shown, the situation is just the opposite. Since the distance between the first external chamfering cutter head 7 and the central axis of the tool holder 1 is small, the blade of the first external chamfering cutter head 7 cannot completely cover the external chamfering machining surface at this time. At this time, it is necessary to use the second external chamfering cutter head 8 with a larger distance from the central axis of the tool holder 1 to realize the external chamfering machining; the boring tool seat 2 is provided with a tool holder slide groove, and a boring tool holder 9 is slidably arranged in the tool holder slide groove, and a boring head 10 is fixedly arranged at one end of the boring tool holder 9, and the boring tool holder 9 is threaded At least one locking screw is screwed on, and a tool clamp adjusting screw 11 is arranged between the bottom surface of the boring tool clamp 9 and the bottom surface of the tool clamp slide groove. Thread sections with opposite rotation directions are arranged at both ends of the tool clamp adjusting screw 11. The tool clamp adjusting screw 11 is screwed on the bottom of the boring tool clamp 9 and the bottom of the tool clamp slide groove through the thread sections at both ends. By twisting the tool clamp adjusting screw 11, the distance between the boring tool clamp 9 and the bottom of the tool clamp slide groove can be adjusted, so that the protruding length of the boring tool head 10 can be adjusted, so that it can be used to process holes of different diameters.

[0022] The working principle of this embodiment is as follows:

[0023] The adjustable composite boring tool and the workpiece 12 to be processed in this embodiment are both installed on the machine tool, and the workpiece 12 to be processed is installed on the rotating end. In the description of the working principle of the adjustable composite boring tool, in order to fully describe its working principle, the tool is used to perform internal hole processing of two diameters, one large and one small, for illustration;

[0024] First, when machining a smaller 70 mm diameter hole, the position of each cutter head is adjusted according to the requirements before the machining begins, and then the cutter heads are fixed and the machine tool rotation end is started to start machining. By controlling the adjustable boring compound tool to approach the workpiece 12 to be machined, as shown in the attached figure, Figure 4 ~Attached Figure 5 As shown, the boring cutter head 10 first contacts the workpiece 12 to be processed, and the boring process begins at this time. During the continuous advancement of the adjustable boring composite tool, the end face cutter head 5, the inner chamfering cutter head 6 and the first outer chamfering cutter head 7 contact the designated processing positions of the workpiece 12 to be processed, and finally the end face cutter head 5 completes the flattening of the end face of the hole, the inner chamfering cutter head 6 completes the chamfering process of the inner side wall edge of the hole, and the first outer chamfering cutter head 7 completes the chamfering process of the outer side wall edge of the hole. During this process, the second outer chamfering cutter head 8 does not contact the workpiece and is in an idle state.

[0025] When turning to the larger 82mm diameter hole processing, as shown in the attached Figure 6 ~Attached Figure 7As shown, by adjusting the tool holder adjusting screw 11, the distance between the boring tool head 10 and the rotating axis is increased to meet the boring processing requirements of the 82mm hole, and the positions of the end tool head 5, the inner chamfering tool head 6 and the second outer chamfering tool head 8 are adjusted at the same time. At the same time, the first outer chamfering tool head 7 used in the 70mm hole processing is retracted, and then the adjustable boring compound tool is controlled to approach the workpiece 12 to be processed, as shown in the attached figure. Figure 6 ~Attached Figure 7 As shown, in this processing process, compared with the 70 mm hole processing, except that the second external chamfering cutter head 8 is used instead of the first external chamfering cutter head 7, the rest of the cutter head processing process is the same.

[0026] It should also be noted that the processing of the above-mentioned 70mm and 82mm holes are only two of the processing specifications that can be achieved by the present invention. This example is only to illustrate that the use of two external chamfering cutter heads in different positions in the present invention can make the tool have a larger range of inner hole diameters that can be processed compared to a single external chamfering cutter head solution, and is more practical.

[0027] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An adjustable composite boring tool, comprising a tool handle (1), characterized in that: One end of the tool handle (1) is fixedly connected to a composite tool holder, and the composite tool holder comprises a boring tool holder (2) and an auxiliary tool holder (3). One end of the auxiliary tool holder (3) is fixedly connected to the tool handle (1), and the end of the auxiliary tool holder (3) away from the tool handle (1) is fixedly connected to the boring tool holder (2). The auxiliary tool holder (3) is provided with a plurality of auxiliary tool clamps (4) in an annular shape, and the plurality of auxiliary tool clamps (4) are respectively fixedly provided with an external chamfering head, an internal chamfering head (6) and an end face head (5). The boring tool holder (2) is slidably provided with a boring tool clamp (9), and one end of the boring tool clamp (9) is fixedly provided with a boring hole head (10), and the boring tool clamp (9) is threadedly screwed with at least one locking screw.

2. The adjustable composite boring tool according to claim 1, characterized in that: The auxiliary tool holder (4) is slidably arranged on the auxiliary tool seat (3), and the auxiliary tool holder (4) is threadedly screwed with at least one locking screw.

3. The adjustable composite boring tool according to claim 2, characterized in that: There are two external chamfering cutter heads, respectively referred to as a first external chamfering cutter head (7) and a second external chamfering cutter head (8); the distance between the first external chamfering cutter head (7) and the central axis of the tool handle (1) is smaller than the distance between the second external chamfering cutter head (8) and the central axis of the tool handle (1).

4. The adjustable composite boring tool according to claim 1, characterized in that: The boring tool seat (2) is provided with a tool clamp slide groove, the boring tool clamp (9) is slidably arranged in the tool clamp slide groove, and a tool clamp adjustment screw (11) is arranged between the bottom surface of the boring tool clamp (9) and the bottom surface of the tool clamp slide groove.

5. The adjustable composite boring tool according to claim 4, characterized in that: The two ends of the tool clamp adjusting screw (11) are respectively provided with thread segments with opposite rotation directions, and the tool clamp adjusting screw (11) is respectively threadedly connected with the bottom of the boring tool clamp (9) and the bottom of the tool clamp sliding groove through the thread segments at the two ends.

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