Coring device capable of actively cooling and removing dust

Abstract

The utility model provides an active cooling dust removal coring device which comprises a mounting frame, a main tool rest, a main tool bit and a plurality of water passing pipes, the main tool rest is of a cylindrical structure and is horizontally arranged, one end of the main tool rest is connected with the mounting frame, and a plurality of first drainage holes are formed in the side wall of the lower side of the main tool rest; the main tool bit is arranged at the end, back on to the mounting frame, of the main tool rest and connected with the main tool rest. The water passing pipes are arranged in the side wall of the main tool rest in the axis direction of the main tool rest, one ends of the water passing pipes are flush with or protrude out of the end face of the end, back on to the mounting frame, of the main tool rest, and the other ends of the water passing pipes are suitable for being communicated with a water source. According to the active cooling and dust removing coring device, water and chippings entering the main tool rest are discharged through the first drainage holes in the main tool rest, accumulation in the main tool rest is effectively avoided, and the machining quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of stone and wood processing tools, and in particular relates to a core-taking device with active cooling and dust removal. Background Art

[0002] Coring is a common requirement in stone and wood processing. Currently, coring is usually done with a special coring tool, which usually includes a cylindrical tool holder and a cutter head disposed at the end of the tool holder. In order to remove dust and cool the tool, water is usually sprayed on the cutting area while cutting, or a water pipe is installed on the tool to spray water on the tool head for cooling.

[0003] However, when coring is performed at a horizontal angle, the sprayed water and cut chips tend to accumulate inside the cylindrical tool holder and are difficult to discharge, thereby affecting the processing quality. Utility Model Content

[0004] The utility model provides a coring device with active cooling and dust removal, aiming to solve the technical problems recorded in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a coring device with active cooling and dust removal, comprising:

[0006] Mounting frame;

[0007] The main tool holder is a cylindrical structure, arranged horizontally and connected to the mounting frame at one end, and a plurality of first drainage holes are opened on the lower side wall;

[0008] A main tool head is arranged at one end of the main tool holder facing away from the mounting frame and connected to the main tool holder; and

[0009] A plurality of water pipes are arranged in the side wall of the main tool holder along the axis direction of the main tool holder, one end of which is flush with or protrudes from the end surface of the main tool holder facing away from the mounting frame, and the other end is suitable for connecting with a water source.

[0010] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, it also includes a water diversion valve, which is provided with a water inlet and a plurality of water outlets, the water inlet is suitable for connecting to a water source, the water outlet corresponds one-to-one with the water pipe, and the water outlet of the water diversion valve is connected to the water pipe through a pipeline.

[0011] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, it also includes:

[0012] 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;

[0013] A bottom cutting tool head, arranged on a side of the bottom cutting tool holder facing the axis of the main tool holder, and connected to the bottom cutting tool holder; and

[0014] 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;

[0015] 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.

[0016] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, it also includes:

[0017] 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

[0018] 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.

[0019] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, a reset component is also included, and the reset component includes:

[0020] 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;

[0021] 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

[0022] A return spring has one end connected to the other end of the first connecting plate and the other end fixedly arranged.

[0023] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, the transmission assembly includes:

[0024] The inner cylinder is sleeved inside the main tool holder and is rotatably matched with the main tool holder. A first rotating shaft passing through the main tool holder is provided at the bottom of the inner cylinder. 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 plurality of second drainage holes are provided on the circumference of the side wall of the inner cylinder.

[0025] 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

[0026] A connecting assembly connected to the connecting block and to the bottom cutting tool holder;

[0027] 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.

[0028] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, a limiting groove is provided in the circumferential direction of the outer side of the bottom cutting tool holder, and the connecting assembly includes:

[0029] 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;

[0030] 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;

[0031] A second connecting plate connected to the first rotating shaft; and

[0032] 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.

[0033] In a possible implementation of the active cooling and dust removal coring device provided by the utility model, the connecting assembly also includes a guide plate, which has 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.

[0034] In a possible implementation of the active cooling and dust removal coring device 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.

[0035] The beneficial effects of the active cooling and dust removal coring device provided by the utility model are as follows: compared with the prior art, the active cooling and dust removal coring device provided by the utility model, when coring horizontally, sprays water toward the end of the main tool holder through a water pipe penetrated through the side wall of the main tool holder, thereby cooling the main tool holder and the main tool head and removing dust at the same time; in this process, water and debris entering the interior of the main tool holder are discharged through the multiple first drainage holes on the main tool holder, effectively avoiding accumulation in the main tool holder and ensuring processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the three-dimensional structure of the coring device with active cooling and dust removal provided by the embodiment of the utility model Figure 1 ;

[0037] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0038] Figure 3 Schematic diagram of the three-dimensional structure of the coring device with active cooling and dust removal provided by the embodiment of the utility model Figure 2 ;

[0039] Figure 4 Schematic diagram of the three-dimensional structure of the coring device with active cooling and dust removal provided by the embodiment of the utility model Figure 3 ;

[0040] Figure 5 for Figure 4 A magnified view of part B in FIG.

[0041] Description of reference numerals:

[0042] 11. Main tool rest; 12. Main tool head; 13. Mounting frame; 14. Guide plate; 15. First drainage hole;

[0043] 21. bottom cutting tool holder; 22. bottom cutting tool head; 23. second rotating shaft; 24. limit block;

[0044] 31. Inner cylinder; 32. Connecting block; 33. First rotating shaft; 34. Second drainage hole; 41. Connecting rope;

[0045] 42. first pulley; 43. second pulley; 44. sliding frame; 45. connecting rod;

[0046] 46. ​​Second connecting plate; 51. First connecting plate; 52. Return spring; 53. Limiting protrusion;

[0047] 61. Water pipe; 62. Water diversion valve. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present application, it should be understood 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, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, 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, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0055] Please also read Figure 1 to Figure 2 , the active cooling and dust removal coring device provided by the utility model is now described. The active cooling and dust removal coring device comprises a mounting frame 13, a main tool holder 11, a main tool head 12 and a plurality of water pipes 61, the main tool holder 11 is a cylindrical structure, horizontally arranged and connected to the mounting frame 13 at one end, and a plurality of first drainage holes 15 are provided on the lower side wall; the main tool head 12 is arranged at the end of the main tool holder 11 facing away from the mounting frame 13, and connected to the main tool holder 11; a plurality of water pipes 61 are arranged in the side wall of the main tool holder 11 along the axial direction of the main tool holder 11, one end of which is flush with or protrudes from the end face of the end of the main tool holder 11 facing away from the mounting frame 13, and the other end is suitable for connecting with a water source.

[0056] The beneficial effects of the coring device with active cooling and dust removal provided by the embodiment of the utility model are as follows: compared with the prior art, the coring device with active cooling and dust removal provided by the embodiment of the utility model, when coring horizontally, sprays water toward the end of the main tool holder 11 through the water pipe 61 penetrating the side wall of the main tool holder 11, so as to cool the main tool holder 11 and the main tool head 12 and remove dust at the same time; in this process, water and debris entering the interior of the main tool holder 11 are discharged through the multiple first drainage holes 15 on the main tool holder 11, effectively avoiding accumulation in the main tool holder 11 and ensuring the processing quality.

[0057] like Figure 3 and Figure 4 As shown, in a specific implementation of the active cooling and dust removal coring device provided in an embodiment of the utility model, it also includes a water diverter valve 62, the water diverter valve 62 is provided with a water inlet and a plurality of water outlets, the water inlet is suitable for connecting to a water source, the water outlet corresponds one-to-one with the water pipe 61, and the water outlet of the water diverter valve 62 is connected to the water pipe 61 through a pipeline for easy control.

[0058] like Figure 1 and Figure 2 As shown, in a specific implementation of the active cooling and dust removal coring device provided in an embodiment of the utility model, it also 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 is a cylindrical structure, and the main tool head 12 is arranged 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 arranged 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 arranged 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, the power input end is connected to the external drive assembly, and the power output end is connected to the bottom cutting tool holder 21, which is used to transmit the power of the drive assembly to drive the bottom cutting tool holder 21 to rotate toward the axis of the main tool holder 11.

[0059] Among them, when the main cutting 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 cutting 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 cutting head 12 and the axis of the main tool holder 11.

[0060] It should be noted that when processing a cylindrical object with a bottom, the annular groove is first processed by the main cutting head 12 at the end of the main tool holder 11. After processing to the required depth, the 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 toward the axis of the main tool holder 11, gradually cutting the bottom, so that the columnar material inside the cylindrical object is separated from the bottom of the cylindrical object, and then the columnar material is completely taken out, which greatly reduces material waste.

[0061] like Figure 1and Figure 3 As shown, in a specific implementation of the active cooling and dust removal coring device provided in an embodiment of the utility model, it also includes a mounting frame 13, a second rotating shaft 23 and a limit block 24. The mounting frame 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 axial 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 frame 13; the limit block 24 is arranged on the side of the mounting frame 13 facing away from the main tool holder 11, and a threaded hole is provided on the limit block 24, which is threadedly connected to the second rotating shaft 23, and the limit block 24 abuts against the mounting frame 13.

[0062] It should be noted that the limiting block 24 is threadedly connected to the second rotating shaft 23 and abuts against the mounting frame 13, which can effectively prevent the axis of the bottom cutting tool holder 21 from moving when working.

[0063] like Figure 2 and Figure 5 As shown, in a specific embodiment of the active cooling and dust removal coring device provided in an embodiment of the utility model, it also includes a reset component, the reset component includes a limit protrusion 53, a first connecting plate 51 and a reset spring 52, the limit protrusion 53 is arranged on the outside of the bottom cutting tool holder 21, and is connected to the main tool holder 11, and the limit protrusion 53 is suitable for abutting 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.

[0064] It should be noted that when cutting the bottom and removing the core, the transmission assembly 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 accumulate elastic potential energy; after the processing is completed, the reset spring 52 releases the elastic potential energy, drives the second rotating shaft 23 to rotate, and drives the bottom cutting tool holder 21 to rotate in the opposite direction. After reaching the initial position, it is blocked by the limiting protrusion 53 to complete the reset.

[0065] like Figure 1 and Figure 2As shown, in a specific implementation of the active cooling and dust removal coring device provided in an embodiment of the utility model, the transmission assembly includes an inner cylinder 31, a connecting block 32 and a connecting assembly. The inner cylinder 31 is sleeved inside the main tool holder 11 and rotates with the main tool holder 11. A first rotating shaft 33 passing through the main tool holder 11 is provided at the bottom of the inner cylinder 31. The first rotating shaft 33 is connected to the power output end of the external driving assembly and is used to drive the inner cylinder 31 to rotate relative to the main tool holder 11 under the drive of the driving assembly; a plurality of inner cylinder 31 side walls are provided on the circumference thereof. a second drainage hole 34; a 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 holder 11 is less than or equal to the maximum distance between the axis of the main tool head 12 and the main tool holder 11, and the minimum distance between the connecting block 32 and the axis of the main tool holder 11 is greater than or equal to the minimum distance between the axis of the main tool head 12 and the main tool holder 11; the connecting assembly is connected to the connecting block 32 and is also connected to the bottom cutting tool holder 21; when the connecting block 32 rotates with the inner cylinder 31 relative to the main tool holder 11, the bottom cutting tool holder 21 is driven to rotate through the connecting assembly.

[0066] Specifically, Figure 1 and Figure 3 As shown, in a specific embodiment of the core-drilling device with active cooling and dust removal provided in an embodiment of the utility model, a limiting groove is provided in the circumferential direction of the outer side of the bottom cutting tool holder 21, and the connecting assembly 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 holder 11 facing away from the bottom cutting tool holder 21, and has the freedom to slide in a horizontal plane in a direction perpendicular to the axis of the main tool holder 11; the connecting rope 41 is laid in the limiting groove on the outer side of the bottom cutting tool holder 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 holder 11 along the axial direction of the main tool holder 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 staggered with 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.

[0067] Specifically, the connecting rope 41 is a steel wire rope.

[0068] It should be noted that, when cutting the bottom and coring, the external driving assembly drives the inner cylinder 31 to rotate, thereby driving the connecting block 32 on the inner cylinder 31 to rotate axially away from the bottom cutting cutter head 22 with the axis of the inner cylinder 31 as the axial direction, pulling the connecting rope 41, and applying force to the bottom cutting tool holder 21 through the connecting rope 41, thereby driving the bottom cutting tool holder 21 to rotate; at the same time, when the inner cylinder 31 rotates, the sliding frame 44 is driven to move through the connecting rod 45, so that the expansion and contraction amount of the connecting rope 41 at one end of the main tool holder 11 where the bottom cutting tool holder 21 is located is matched with the expansion and contraction amount of the connecting rope 41 at the end of the main tool holder 11 facing away from the bottom cutting tool holder 21, so that the connecting rope 41 can maintain a certain tension, thereby being able to apply sufficient pressure to the bottom cutting tool holder 21.

[0069] Further, such as Figure 1 and Figure 2 As shown, in a specific embodiment of the coring device with active cooling and dust removal provided in an embodiment of the utility model, the connecting assembly also includes a guide plate 14, which is 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, and a guide groove is provided on the outer side of the guide plate 14, and a connecting rope 41 is laid in the guide groove to guide the connecting rope 41 to a suitable position.

[0070] like Figure 2 and Figure 3 As shown, in a specific embodiment of the coring device with active cooling and dust removal provided in an embodiment of the utility model, the connecting assembly also 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 fixed 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 passes through the side wall of the main tool holder 11, and is connected to the sliding frame 44 through the second pulley 43 to reduce the friction at the turning point of the connecting rope 41 and reduce the wear of the connecting rope 41.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coring device with active cooling and dust removal, characterized in that: include: Mounting frame; The main tool holder is a cylindrical structure, arranged horizontally and connected to the mounting frame at one end, and a plurality of first drainage holes are opened on the lower side wall; A main tool head is arranged at one end of the main tool holder facing away from the mounting frame and connected to the main tool holder; as well as A plurality of water pipes are arranged in the side wall of the main tool holder along the axis direction of the main tool holder, one end of which is flush with or protrudes from the end surface of the main tool holder facing away from the mounting frame, and the other end is suitable for connecting with a water source.

2. The active cooling and dust removal coring device according to claim 1, characterized in that: It also includes a water diverter valve, which is provided with a water inlet and a plurality of water outlets. The water inlet is suitable for being connected to a water source, and the water outlets correspond one-to-one with the water pipes. The water outlets of the water diverter valve are connected to the water pipes through pipelines.

3. The active cooling and dust removal coring device according to claim 1, 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, arranged on a side of the bottom cutting tool holder facing the axis of the main tool holder, and 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.

4. The active cooling and dust removal coring device according to claim 2, characterized in that: Also includes: 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.

5. The active cooling and dust removal coring device according to claim 4, 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.

6. The active cooling and dust removal coring device according to claim 3, characterized in that: The transmission assembly comprises: The inner cylinder is sleeved inside the main tool holder and is rotatably matched with the main tool holder. A first rotating shaft passing through the main tool holder is provided at the bottom of the inner cylinder. 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 plurality of second drainage holes are provided on the circumference of the side wall of the inner cylinder. 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.

7. The active cooling and dust removal coring device according to claim 6, 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.

8. The active cooling and dust removal coring device according to claim 7, 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.

9. The active cooling and dust removal coring device according to claim 7, 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.

Images