Undercutting tool for stone and wood processing

Abstract

The utility model provides an undercutting tool for stone and wood processing, the undercutting tool for stone and wood processing comprises a main tool rest, a main tool bit, an undercutting tool rest, an undercutting tool bit and a transmission assembly, the main tool rest is of a cylindrical structure, and the main tool bit is arranged at the end of the main tool rest and connected with the main tool rest; the undercut knife rest is arranged at the end of the main knife rest, and one end is rotationally connected with the main knife rest. The bottom cutting tool bit is arranged on the side, facing the axis of the main tool rest, of the bottom cutting tool rest and connected with the bottom cutting tool rest. The transmission assembly is connected with the main tool rest, the power input end is connected with an external driving assembly, and the power output end is connected with the undercut tool rest and used for transmitting power of the driving assembly to drive the undercut tool rest to rotate towards the axis of the main tool rest. Power is transmitted through the transmission assembly to drive the bottom cutting tool rest to drive the bottom cutting tool bit to rotate towards the axis of the main tool rest, the bottom is gradually cut, columnar materials in the cylindrical object are separated from the bottom of the cylindrical object, then the columnar materials are completely taken out, and material waste is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting tools, and particularly relates to a bottom-cutting tool for stone and wood processing. Background Art

[0002] The technology of taking the overall material of large and small cylinders in stone and wood is a difficult problem in the stone and wood processing technology.

[0003] When processing a bottomed cylindrical article, regardless of the diameter, only one complete cylindrical article can be made from this section of stone or wood; in the currently adopted processing methods, one is to scoop out the material inside the cylindrical article, and all the materials coming out become scraps, resulting in a large waste of stone and wood; the other is the hollowing-out technique of taking materials through the bottom, that is, penetrating the bottom and taking out the small cylinder for utilization. However, the bottom-penetrating works need to be mended at the bottom, and the integrity of the mended utensils is damaged. Content of the Utility Model

[0004] The utility model provides a bottom-cutting tool for stone and wood processing, aiming to provide a tool that can completely take out the cylindrical material in stone and wood without penetrating the bottom.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a bottom-cutting tool for stone and wood processing, including a main tool holder and a main tool head. The main tool holder has a cylindrical structure, and the main tool head is arranged at the end of the main tool holder and is connected to the main tool holder. It further includes:

[0006] A bottom-cutting tool holder, arranged at the end of the main tool holder, and one end is rotatably connected to the main tool holder;

[0007] A bottom-cutting tool head, arranged on the side of the bottom-cutting tool holder facing the axis of the main tool holder and connected to the bottom-cutting tool holder; and

[0008] A transmission component, connected to the main tool holder, with the power input end connected to an external drive component and the power output end connected to the bottom-cutting tool holder, used to transmit the power of the drive component to drive the bottom-cutting tool holder to rotate towards the axis of the main tool holder;

[0009] Wherein, when the main tool head is working, the maximum distance between the bottom-cutting tool holder and the axis of the main tool holder is less than or equal to the maximum distance between the main tool head and the axis of the main tool holder, and the minimum distance between the bottom-cutting tool head and the axis of the main tool holder is greater than or equal to the minimum distance between the main tool head and the axis of the main tool holder.

[0010] In a possible implementation manner of the bottom-cutting tool for stone and wood processing provided by the utility model, it further includes:

[0011] An installation rack, arranged on the side of the main tool holder facing away from the bottom-cutting tool holder and connected to the main tool holder;

[0012] A second rotating shaft that passes through the side wall of the main tool rest along the axis direction of the main tool rest, with one end connected to the bottom cutting tool rest and the other end passing through the mounting bracket; and

[0013] A limit block is provided on the side of the mounting bracket facing away from the main tool rest. The limit block is provided with a threaded hole and is threadedly connected to the second rotating shaft, and the limit block abuts against the mounting bracket.

[0014] In a possible implementation of the bottom cutting tool for stone and wood processing provided by the present utility model, a reset assembly is further included, and the reset assembly includes:

[0015] A limit projection is provided on the outside of the bottom cutting tool rest and is connected to the main tool rest. The limit projection is adapted to abut against the outside of the bottom cutting tool rest;

[0016] A first connecting plate is provided on the side of the main tool rest facing away from the bottom cutting tool rest, with one end connected to the second rotating shaft; and

[0017] A reset spring has one end connected to the other end of the first connecting plate and the other end fixedly arranged.

[0018] In a possible implementation of the bottom cutting tool for stone and wood processing provided by the present utility model, the transmission assembly includes:

[0019] An inner cylinder is sleeved inside the main tool rest and is rotationally matched with the main tool rest. A first rotating shaft passing through the main tool rest is provided at the bottom of the inner cylinder. The first rotating shaft is connected to the power output end of an external driving assembly to drive the inner cylinder to rotate relative to the main tool rest under the drive of the driving assembly;

[0020] A connecting block is connected to the end of the inner cylinder. The maximum distance between the connecting block and the axis of the main tool rest is less than or equal to the maximum distance between the main tool head and the axis of the main tool rest, and the minimum distance between the connecting block and the axis of the main tool rest is greater than or equal to the minimum distance between the main tool head and the axis of the main tool rest; and

[0021] A connecting assembly is connected to the connecting block and is connected to the bottom cutting tool rest;

[0022] When the connecting block rotates relative to the main tool rest along with the inner cylinder, the bottom cutting tool rest is driven to rotate through the connecting assembly.

[0023] In a possible implementation of the bottom cutting tool for stone and wood processing provided by the present utility model, a limiting groove is circumferentially formed on the outside of the bottom cutting tool rest, and the connecting assembly includes:

[0024] A sliding frame, arranged on a side of the main tool holder facing away from the bottom cutting tool holder, having the freedom to slide in a horizontal plane along a direction perpendicular to the axis of the main tool holder;

[0025] A connecting rope is arranged in the limiting groove outside the bottom cutting tool holder, and one end of the connecting rope is connected to the connecting block; the other end of the connecting rope passes through the side wall of the main tool holder along the axis direction of the main tool holder and is connected to the sliding frame;

[0026] A second connecting plate connected to the first rotating shaft; and

[0027] A connecting rod, one end of which is staggered with the axis of the first rotating shaft and rotatably connected to the second connecting plate, and the other end of which is rotatably connected to the sliding frame.

[0028] In a possible implementation of the bottom cutting tool for stone and wood processing provided by the utility model, the connecting assembly also includes a guide plate, which is in an arc-shaped structure and is arranged on the side of the bottom cutting tool holder facing away from the bottom cutting tool head and connected to the end of the main tool holder, and a guide groove is provided on the outer side of the guide plate, and the connecting rope is laid in the guide groove.

[0029] In a possible implementation of the bottom cutting tool for stone and wood processing provided by the utility model, the connecting assembly also includes a first pulley and a second pulley, the first pulley is arranged on the side of the bottom cutting tool holder facing away from the bottom cutting tool head and connected to the end of the main tool holder, and the second pulley is fixed between the main tool holder and the sliding frame; the connecting rope passes through the first pulley, penetrates into the side wall of the main tool holder, passes through the side wall of the main tool holder, and is connected to the sliding frame through the second pulley.

[0030] The beneficial effect of the bottom cutting tool for stone and wood processing provided by the utility model is as follows: compared with the prior art, the bottom cutting tool for stone and wood processing provided by the utility model is provided with a bottom cutting tool holder and a bottom cutting cutter head at the end of the main tool holder. When processing a cylindrical object with a bottom, the annular groove is first processed by the main tool head at the end of the main tool holder. After processing to a required depth, the bottom cutting tool holder is driven by power transmitted through the transmission component to drive the bottom cutting cutter head to rotate toward the axis of the main tool holder, gradually cutting the bottom, separating the columnar material inside the cylindrical object from the bottom of the cylindrical object, and then taking out the columnar material completely, greatly reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a bottom cutting tool for stone and wood processing provided by an embodiment of the utility model Figure 1 ;

[0032] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0033] Figure 3 Schematic three-dimensional structure of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model Figure 2 ;

[0034] Figure 4 Schematic three-dimensional structure of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model Figure 3 ;

[0035] Figure 5 is Figure 4 the enlarged view of part B in

[0036] Explanation of reference numerals:

[0037] 11, main tool holder; 12, main tool head; 13, mounting bracket; 14, guide plate;

[0038] 21, bottom-cutting tool holder; 22, bottom-cutting tool head; 23, second rotating shaft; 24, limiting block;

[0039] 31, inner cylinder; 32, connecting block; 33, first rotating shaft; 41, connecting rope; 42, first pulley;

[0040] 43, second pulley; 44, sliding bracket; 45, connecting rod; 46, second connecting plate;

[0041] 51, first connecting plate; 52, return spring; 53, limiting protrusion. Detailed implementation manners

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way restrictive of the present application or its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0044] Note that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0047] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.

[0048] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, these terms have no special meaning, and thus should not be construed as limiting the scope of protection of this application.

[0049] Please refer to Figures 1 to 5 , and now the bottom-cutting tool for stone and wood processing provided by the present utility model will be described. The bottom-cutting tool for stone and wood processing includes a main tool holder 11, a main tool head 12, a bottom-cutting tool holder 21, a bottom-cutting tool head 22, and a transmission assembly. The main tool holder 11 has a cylindrical structure. The main tool head 12 is provided at the end of the main tool holder 11 and is connected to the main tool holder 11. The bottom-cutting tool holder 21 is provided at the end of the main tool holder 11, and one end is rotatably connected to the main tool holder 11. The bottom-cutting tool head 22 is provided on the side of the bottom-cutting tool holder 21 facing the axis of the main tool holder 11 and is connected to the bottom-cutting tool holder 21. The transmission assembly is connected to the main tool holder 11, with the power input end connected to an external drive assembly and the power output end connected to the bottom-cutting tool holder 21, for transmitting the power of the drive assembly to drive the bottom-cutting tool holder 21 to rotate towards the axis of the main tool holder 11.

[0050] Among them, when the main tool head 12 is working, the maximum distance between the bottom-cutting tool holder 21 and the axis of the main tool holder 11 is less than or equal to the maximum distance between the main tool head 12 and the axis of the main tool holder 11, and the minimum distance between the bottom-cutting tool head 22 and the axis of the main tool holder 11 is greater than or equal to the minimum distance between the main tool head 12 and the axis of the main tool holder 11.

[0051] The beneficial effects of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model are as follows: Compared with the prior art, in the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, a bottom-cutting tool holder 21 and a bottom-cutting tool head 22 are provided at the end of the main tool holder 11. When processing a bottomed cylindrical article, first, a circular groove is processed by the main tool head 12 at the end of the main tool holder 11. After processing to the required depth, power is transmitted through the transmission component to drive the bottom-cutting tool holder 21 to drive the bottom-cutting tool head 22 to rotate towards the axis of the main tool holder 11, gradually cutting the bottom, so that the columnar material inside the cylindrical article is separated from the bottom of the cylindrical article, and then the columnar material can be taken out completely, greatly reducing material waste.

[0052] As Figure 1 and Figure 3 shown, in a specific implementation manner of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, it further includes a mounting bracket 13, a second rotating shaft 23 and a limiting block 24. The mounting bracket 13 is arranged on the side of the main tool holder 11 facing away from the bottom-cutting tool holder 21 and is connected to the main tool holder 11; the second rotating shaft 23 passes through the side wall of the main tool holder 11 along the axis direction of the main tool holder 11, one end is connected to the bottom-cutting tool holder 21, and the other end passes through the mounting bracket 13; the limiting block 24 is arranged on the side of the mounting bracket 13 facing away from the main tool holder 11, and a threaded hole is provided on the limiting block 24, which is threadedly connected to the second rotating shaft 23, and the limiting block 24 abuts against the mounting bracket 13.

[0053] It should be noted that the limiting block 24 is threadedly connected to the second rotating shaft 23 and abuts against the mounting bracket 13, which can effectively prevent the axis of the bottom-cutting tool holder 21 from moving axially during operation.

[0054] As Figure 2 and Figure 5 shown, in a specific implementation manner of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, it further includes a reset component. The reset component includes a limiting protrusion 53, a first connecting plate 51 and a reset spring 52. The limiting protrusion 53 is arranged on the outside of the bottom-cutting tool holder 21 and is connected to the main tool holder 11. The limiting protrusion 53 is adapted to abut against the outside of the bottom-cutting tool holder 21; the first connecting plate 51 is arranged on the side of the main tool holder 11 facing away from the bottom-cutting tool holder 21, and one end is connected to the second rotating shaft 23; one end of the reset spring 52 is connected to the other end of the first connecting plate 51, and the other end is fixedly arranged.

[0055] It should be noted that during bottom-cutting, the transmission component drives the bottom-cutting tool holder 21 to rotate, and drives the first connecting plate 51 to swing through the second rotating shaft 23, thereby stretching or compressing the reset spring 52 to store elastic potential energy; after processing is completed, the reset spring 52 releases the elastic potential energy, drives the second rotating shaft 23 to rotate, drives the bottom-cutting tool holder 21 to rotate reversely, and is blocked by the limiting protrusion 53 after reaching the initial position to complete the reset.

[0056] As Figure 1 andFigure 2 As shown in the figure, in a specific implementation of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, the transmission assembly includes an inner cylinder 31, a connecting block 32 and a connecting component. The inner cylinder 31 is sleeved inside the main tool rest 11 and is rotationally matched with the main tool rest 11. A first rotating shaft 33 passing through the main tool rest 11 is provided at the bottom of the inner cylinder 31. The first rotating shaft 33 is connected to the power output end of an external driving component, and is used to drive the inner cylinder 31 to rotate relative to the main tool rest 11 under the drive of the driving component; the connecting block 32 is connected to the end of the inner cylinder 31. The maximum distance between the connecting block 32 and the axis of the main tool rest 11 is less than or equal to the maximum distance between the main tool head 12 and the axis of the main tool rest 11, and the minimum distance between the connecting block 32 and the axis of the main tool rest 11 is greater than or equal to the minimum distance between the main tool head 12 and the axis of the main tool rest 11; the connecting component is connected to the connecting block 32 and is connected to the bottom-cutting tool rest 21; when the connecting block 32 rotates relative to the main tool rest 11 along with the inner cylinder 31, the bottom-cutting tool rest 21 is driven to rotate through the connecting component.

[0057] Specifically, as Figure 1 and Figure 3 shown in the figure, in a specific implementation of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, a limiting groove is circumferentially formed on the outer side of the bottom-cutting tool rest 21. The connecting component includes a sliding frame 44, a connecting rope 41, a second connecting plate 46 and a connecting rod 45. The sliding frame 44 is arranged on the side of the main tool rest 11 facing away from the bottom-cutting tool rest 21 and has the freedom to slide in a direction perpendicular to the axis of the main tool rest 11 in the horizontal plane; the connecting rope 41 is arranged in the limiting groove on the outer side of the bottom-cutting tool rest 21, and one end is connected to the connecting block 32; the other end of the connecting rope 41 passes through the side wall of the main tool rest 11 along the axis direction of the main tool rest 11 and is connected to the sliding frame 44; the second connecting plate 46 is connected to the first rotating shaft 33; one end of the connecting rod 45 is arranged offset from the axis of the first rotating shaft 33 and is rotatably connected to the second connecting plate 46, and the other end is rotatably connected to the sliding frame 44.

[0058] Specifically, the connecting rope 41 is a steel wire rope.

[0059] It should be noted that during bottom cutting, an external driving component drives the inner cylinder 31 to rotate, thereby driving the connecting block 32 on the inner cylinder 31 to rotate axially away from the side of the bottom-cutting tool head 22 with the axis of the inner cylinder 31 as the axis, pulling the connecting rope 41, applying a force to the bottom-cutting tool rest 21 through the connecting rope 41, and driving the bottom-cutting tool rest 21 to rotate; at the same time, when the inner cylinder 31 rotates, the sliding frame 44 is driven through the connecting rod 45, so that the telescopic amounts of the connecting rope 41 at one end of the main tool rest 11 where the bottom-cutting tool rest 21 is located and the connecting rope 41 at the end of the main tool rest 11 facing away from the bottom-cutting tool rest 21 are matched, so that the connecting rope 41 can maintain a certain tension, and thus can apply sufficient pressure to the bottom-cutting tool rest 21.

[0060] Furthermore, as Figure 1and Figure 2 As shown in Figure 2 , in a specific implementation manner of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, the connection assembly further includes a guide plate 14. The guide plate 14 has an arc-shaped structure and is arranged on the side of the bottom-cutting tool holder 21 facing away from the bottom-cutting tool head 22 and is connected to the end of the main tool holder 11. A guide groove is provided on the outer side of the guide plate 14, and the connecting rope 41 is arranged in the guide groove to guide the connecting rope 41 to a suitable position.

[0061] As Figure 2 and Figure 3 As shown in Figure 2 and Figure 3 , in a specific implementation manner of the bottom-cutting tool for stone and wood processing provided by the embodiment of the present utility model, the connection assembly further includes a first pulley 42 and a second pulley 43. The first pulley 42 is arranged on the side of the bottom-cutting tool holder 21 facing away from the bottom-cutting tool head 22 and is connected to the end of the main tool holder 11. The second pulley 43 is fixedly arranged between the main tool holder 11 and the sliding frame 44. The connecting rope 41 passes through the first pulley 42 and penetrates into the side wall of the main tool holder 11, and then penetrates out of the side wall of the main tool holder 11, passes through the second pulley 43 and is connected to the sliding frame 44 to reduce the friction at the turning point of the connecting rope 41 and reduce the wear of the connecting rope 41.

[0062] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A cutting tool for stone and wood processing, comprising a main tool holder and a main tool head, wherein the main tool holder is a cylindrical structure, and the main tool head is arranged at the end of the main tool holder and connected to the main tool holder, characterized in that: Also includes: A bottom cutting tool holder, which is arranged at the end of the main tool holder and has one end rotatably connected to the main tool holder; A bottom cutting tool head is arranged on a side of the bottom cutting tool holder facing the axis of the main tool holder and is connected to the bottom cutting tool holder; and A transmission assembly is connected to the main tool rest, a power input end is connected to an external drive assembly, and a power output end is connected to the bottom cutting tool rest, and is used to transmit the power of the drive assembly to drive the bottom cutting tool rest to rotate toward the axis of the main tool rest; Among them, when the main cutting head is working, the maximum distance between the bottom cutting tool holder and the axis of the main tool holder is less than or equal to the maximum distance between the main cutting head and the axis of the main tool holder, and the minimum distance between the bottom cutting tool head and the axis of the main tool holder is greater than or equal to the minimum distance between the main cutting head and the axis of the main tool holder.

2. The bottom cutting tool for stone and wood processing according to claim 1, characterized in that: Also includes: A mounting frame, arranged on a side of the main tool holder facing away from the bottom cutting tool holder, and connected to the main tool holder; A second rotating shaft passes through the side wall of the main tool holder along the axis direction of the main tool holder, one end of which is connected to the bottom cutting tool holder, and the other end of which passes through the mounting frame; and A limit block is arranged on a side of the mounting frame facing away from the main tool holder, a threaded hole is arranged on the limit block, the threaded hole is connected to the second rotating shaft, and the limit block abuts against the mounting frame.

3. The bottom cutting tool for stone and wood processing according to claim 2, characterized in that: Also included is a reset component, the reset component comprising: A limiting protrusion is arranged on the outer side of the bottom cutting tool holder and is connected to the main tool holder, and the limiting protrusion is suitable for abutting against the outer side of the bottom cutting tool holder; A first connecting plate, disposed on a side of the main tool holder facing away from the bottom cutting tool holder, one end of which is connected to the second rotating shaft; and A return spring has one end connected to the other end of the first connecting plate and the other end fixedly arranged.

4. The bottom cutting tool for stone and wood processing according to claim 1, characterized in that: The transmission assembly comprises: The inner cylinder is sleeved inside the main tool holder and rotates with the main tool holder. The bottom of the inner cylinder is provided with a first rotating shaft passing through the main tool holder. The first rotating shaft is connected to the power output end of the external driving component and is used to drive the inner cylinder to rotate relative to the main tool holder under the drive of the driving component. a connecting block connected to the end of the inner cylinder, wherein the maximum distance between the connecting block and the axis of the main tool holder is less than or equal to the maximum distance between the main tool head and the axis of the main tool holder, and the minimum distance between the connecting block and the axis of the main tool holder is greater than or equal to the minimum distance between the main tool head and the axis of the main tool holder; and A connecting assembly connected to the connecting block and to the bottom cutting tool holder; When the connecting block rotates with the inner cylinder relative to the main tool holder, the bottom cutting tool holder is driven to rotate through the connecting assembly.

5. The bottom cutting tool for stone and wood processing according to claim 4, characterized in that: The outer circumference of the bottom cutting tool holder is provided with a limiting groove, and the connecting component comprises: A sliding frame, arranged on a side of the main tool holder facing away from the bottom cutting tool holder, having the freedom to slide in a horizontal plane along a direction perpendicular to the axis of the main tool holder; A connecting rope is arranged in the limiting groove outside the bottom cutting tool holder, and one end of the connecting rope is connected to the connecting block; the other end of the connecting rope passes through the side wall of the main tool holder along the axis direction of the main tool holder and is connected to the sliding frame; A second connecting plate connected to the first rotating shaft; and A connecting rod, one end of which is staggered with the axis of the first rotating shaft and rotatably connected to the second connecting plate, and the other end of which is rotatably connected to the sliding frame.

6. The bottom cutting tool for stone and wood processing according to claim 5, characterized in that: The connecting assembly also includes a guide plate, which is an arc-shaped structure and is arranged on the side of the bottom cutting tool holder facing away from the bottom cutting tool head and connected to the end of the main tool holder. A guide groove is provided on the outer side of the guide plate, and the connecting rope is laid in the guide groove.

7. The bottom cutting tool for stone and wood processing according to claim 5, characterized in that: The connecting assembly also includes a first pulley and a second pulley, the first pulley is arranged on the side of the bottom cutting tool holder facing away from the bottom cutting tool head and connected to the end of the main tool holder, and the second pulley is fixedly arranged between the main tool holder and the sliding frame; the connecting rope passes through the first pulley, penetrates into the side wall of the main tool holder, passes through the side wall of the main tool holder, and is connected to the sliding frame through the second pulley.

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