Efficient disposable spiral suspension type cutter shaft with coarse-fine combined structure

Abstract

The invention discloses an efficient disposable spiral suspension type cutter shaft with a coarse-fine combined structure, and relates to the field of planer tool shafts. The milling cutter comprises a cylindrical cutter body, a shaft head and a shaft rod are coaxially arranged at the two ends of the cylindrical cutter body, the cylindrical cutter body, the shaft head and the shaft rod are integrally formed, rough milling cutter rows and finish milling cutter rows are arranged on the outer side face of the cylindrical cutter body and distributed at intervals, and the rough milling cutter rows and the finish milling cutter rows are arranged on the outer side face of the cylindrical cutter body. And the rough milling cutter row and the fine milling cutter row are spirally distributed on the outer side surface of the cylindrical cutter body. The rough milling cutter rows and the finish milling cutter rows are arranged on the outer side face of the cylindrical cutter body to be matched to achieve synchronous segmented cutting and finish cutting, and the rough milling cutter rows and the finish milling cutter rows are distributed on the outer side face of the cylindrical cutter body in a spiral mode. It is guaranteed that the rough milling cutter row and the finish milling cutter are better driven to machine wood in the rotating operation process of the cylindrical cutter body, and rough cutter sets distributed at intervals are adopted by the rough milling cutter row to conduct rapid segmented machining.

Description

Technical Field

[0001] The invention relates to the technical field of planer shafts, and in particular to a high-efficiency discardable spiral suspension shaft with a coarse and fine combined structure. Background Art

[0002] At present, the outer surface of wood needs to be processed during the wood processing process. Wood planing and milling is an important processing method. In the process of planing and milling of the wood surface, a planing and milling cutter shaft is needed. By driving the planing and milling cutter shaft to rotate, the planing and milling of the board surface is achieved.

[0003] The existing Chinese patent with publication number CN219581684U discloses a discarded planing and milling cutter shaft, which relates to the technical field of planing and milling cutter shafts. The utility model includes a cylindrical cutter body, and a cutter group 1 and a cutter group 2 are arranged on the peripheral side wall of the cylindrical cutter body. The cutter group 1 and the cutter group 2 are arranged in three groups in a circular array along the peripheral side wall of the cylindrical cutter body, and the cutter group 1 and the cutter group 2 are arranged alternately. The cutter seats on the cutter group 1 are arranged at six locations along the axial direction of the cylindrical cutter body, and five discard grooves are opened between the six cutter seats. The cutter seats on the cutter group 2 are arranged at five locations along the axial direction of the cylindrical cutter body.

[0004] With regard to the above-mentioned related technologies, it is found that the blades on the existing discarded planer and milling cutter shafts are mostly processed and used in a straight-row spacing manner. In this processing method, the blades operate perpendicular to the planing direction, the resistance during the cutting process is large, and chip removal is also more difficult. Not only will it cause a large machine load, but the cutting surface also requires multiple processing to ensure smoothness. Summary of the invention

[0005] In order to achieve the effect of reducing the machining load and increasing the smoothness of the cutting surface, the present application provides a high-efficiency discarding spiral suspended cutter shaft with a coarse and fine combined structure.

[0006] The present invention is achieved in that:

[0007] A high-efficiency discardable spiral suspended cutter shaft with a rough and fine combined structure comprises a cylindrical cutter body, wherein two ends of the cylindrical cutter body are coaxially provided with a shaft head and a shaft rod, the cylindrical cutter body, the shaft head and the shaft rod are integrally formed, and a rough milling cutter row and a fine milling cutter row are provided on the outer side surface of the cylindrical cutter body, the rough milling cutter row and the fine milling cutter row are distributed at intervals, and the rough milling cutter row and the fine milling cutter row are both distributed in a spiral manner on the outer side surface of the cylindrical cutter body, and the rough milling cutter row and the fine milling cutter row are both fixedly connected to the cylindrical cutter body.

[0008] By adopting the above technical scheme, by designing the cutter shaft into a structure in which a cylindrical cutter body and two cutter rows cooperate, when it is easy to use, the cylindrical cutter body can be connected with an external motor to drive the two cutter rows to rotate for processing. In this way, when the wood passes over the cutter shaft, its surface can be quickly planed and processed. By arranging the shaft head and the shaft rod coaxially at both ends of the cylindrical cutter body, the shaft head and the shaft rod can be used to ensure the stable installation of the cylindrical cutter body when it is convenient to use, and at the same time, it can be ensured that it can rotate stably during use. At the same time, by arranging the rough milling cutter row and the fine milling cutter row on the outer surface of the cylindrical cutter body, when in use, three groups of rough milling cutter rows and three groups of fine milling cutter rows can be combined for cutting processing. The rough milling cutter row is arranged sparsely, and the fine milling cutter row is arranged densely. During the processing, the blades with sparse arrangement start segmented cutting, and the blades with dense arrangement start fine cutting. This combination not only makes cutting very easy, but also makes the surface very smooth.

[0009] Furthermore, the rough milling cutter row is composed of a plurality of rough cutter groups, the rough cutter groups are distributed at intervals, and the rough cutter groups are pointed structures.

[0010] By adopting the above technical scheme, a number of roughing cutters are neatly arranged in the direction of the spiral line to form a roughing cutter row, and a certain gap is left between the roughing cutter groups, so as to ensure that segmented cutting can be achieved during processing. In actual use, the pointed structure of the roughing cutter group can ensure better cutting into the wood for throwing and cutting operations, which can greatly reduce the load of the machine during processing.

[0011] Furthermore, the finishing cutter row is composed of a plurality of finishing cutter groups, the finishing cutter groups are distributed without gaps, and the finishing cutter groups are of flat-head structure.

[0012] By adopting the above technical solution, a number of fine cutters are neatly arranged along the direction of the spiral line to form a fine milling cutter row, and the fine cutter groups are distributed without gaps, thus ensuring that the wood surface can be precisely processed by the neat fine cutter group, and the flat head structure of the fine cutter group is spliced ​​together for cutting processing, which can effectively increase the smoothness of the cutting surface.

[0013] Furthermore, the roughing knife group includes a suspended knife seat and a roughing knife blade. The suspended knife seat is fixed on the outer surface of the cylindrical knife body, the roughing knife blade is installed on the head of the suspended knife seat, and the roughing knife blade is fixedly connected to the suspended knife seat by a screw.

[0014] By adopting the above technical solution, by designing the roughing knife group into a structure that matches a floating knife seat and a roughing knife blade, the roughing knife blade can be positioned and installed on the floating knife seat for easy use, and then fixed and connected by screws. The screw connection method is not only convenient and quick to install, but also convenient for the roughing knife blade to be disassembled for grinding at any time.

[0015] Furthermore, the floating knife seat includes a base and a V-shaped stop seat, the front end of the base is symmetrically provided with an arc surface, and the upper end surface of the base is provided with a screw hole corresponding to the screw, the V-shaped stop seat is installed on the upper end surface of the base, and the V-shaped stop seat is integrally formed with the base.

[0016] By adopting the above technical solution, by designing the suspended tool holder into a structure that cooperates with a base and a V-shaped stopper, the base can be used to fix the base on the outer surface of the cylindrical tool body for easy use. The base can be used to ensure that the rough knife blade has a certain height when installed, so as to achieve the purpose of suspended planing. The suspended design can not only ensure faster chip removal, but also the suspended planing processing method is easier to dissipate heat, which can greatly increase the service life.

[0017] Furthermore, the upper and lower surfaces of the roughening blade are both arranged in a rhombus shape, and the lower end surface of the roughening blade is smaller than the upper end surface, and a stepped hole one corresponding to the screw hole one is opened at the center of the roughening blade.

[0018] By adopting the above technical scheme, the roughing knife blade is set to a diamond structure with a larger upper end and a smaller lower end, so that a cutting slope can be formed between the top and the bottom when in use, and the diamond structure can ensure that all four ends are cutting heads, so that the roughing knife blade can be switched for use at the four ends when in use, which can greatly increase the service life of the blade, and by opening a stepped hole 1 in the center of the roughing knife blade, it is convenient to use the stepped hole 1 to correspond to the screw hole 1, ensuring that the screw 1 passes through the stepped hole 1 and is better fixed to the screw hole during use, and the screw cap of the screw 1 can be stored in the stepped hole to ensure the flatness of the upper surface of the roughing knife blade, so that the screw will not affect the normal processing and use of the roughing knife blade during processing.

[0019] Furthermore, the fine knife group includes a suspended knife seat 2 and a fine knife blade. The suspended knife seat 2 is fitted and fixed on the outer surface of the cylindrical knife body, and the fine knife blade is installed on the upper end surface of the suspended knife seat 2, and the fine knife blade is fixedly connected to the suspended knife seat 2 by screw 2.

[0020] By adopting the above technical solution, the fine knife group is designed into a structure that matches the suspended knife seat 2 and the fine knife blade. When it is easy to use, it can be fixed on the outer surface of the cylindrical knife body by the suspended knife seat 2, and the stable positioning and installation of the fine knife blade is ensured by the setting of the suspended knife seat 2. The fine knife blade can also be suspended and installed by the setting of the suspended knife seat 2, and the fine knife blade is fixed on the suspended knife seat 2 by screw 2, which is convenient for replacement and use later.

[0021] Furthermore, a chip removal groove is provided on the front end face of the second floating tool holder, and a limiting plate with a limiting fine knife blade is integrally formed on the upper end face of the second floating tool holder, and a threaded hole 2 for installing a second screw is provided at the center of the second floating tool holder.

[0022] By adopting the above technical solution, a chip removal groove is opened on the front end face of the floating tool holder 2, so that the chips processed by the fine knife blade can be discharged along the chip removal groove. When several floating tool holders 2 are arranged together, a long chip removal channel can be formed through the chip removal groove, ensuring that the processed chips can be stably discharged from the tool shaft.

[0023] Furthermore, the front end face of the slitting blade is provided with a first edge face and a second edge face, both of which are inclined downward, and the angle between the first edge face and the second edge face is 150°, and a stepped hole 2 corresponding to the threaded hole 2 is opened in the center of the slitting blade.

[0024] By adopting the above technical solution, by arranging the first blade surface and the second blade surface on the front end face of the fine knife blade, it is easy to ensure better chip discharge through the first blade surface and the second blade surface during processing by the fine knife blade, and at the same time, by limiting the angle between the first blade surface and the second blade surface, the good cutting effect of the fine knife blade is ensured. By opening a stepped hole 2 corresponding to the threaded hole 2 in the center of the fine knife blade, it is convenient for the second screw to be positioned and connected.

[0025] Furthermore, a plurality of heightening pads 1 are installed on the floating knife seat 1, and the heightening pads 1 are fixedly installed between the floating knife seat 1 and the coarse knife blade. A plurality of heightening pads 2 are installed on the floating knife seat 2, and the heightening pads 2 are fixedly installed between the floating knife seat 2 and the fine knife blade.

[0026] By adopting the above technical scheme, when it is necessary to change the height of the rough knife blade, several heightening pads 1 can be installed on the suspended knife seat 1, and then the rough knife blade can be supported by the heightening pad 1, and then the several heightening pads 1 and the rough knife blade can be fixed on the suspended knife seat by replacing the screws of corresponding length, and then they can be used for normal cutting. When it is necessary to change the height of the fine knife blade, several heightening pads 2 can be installed on the suspended knife seat 2, and similarly, several heightening pads 2 and the fine knife blade can be fixed on the suspended knife seat 2 by using screws of appropriate length.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) The present application realizes synchronous segmented cutting and fine cutting by arranging multiple groups of roughing cutter rows and fine milling cutter rows on the outer side surface of the cylindrical cutter body for coordination. The roughing cutter rows and fine milling cutter rows are distributed on the outer side surface of the cylindrical cutter body in a spiral manner to ensure that the roughing cutter rows and fine milling cutters are better driven to process the wood during the rotation of the cylindrical cutter body. The roughing cutter row uses a roughing cutter group with intervals to perform rapid segmented processing, while the fine cutter group uses a spacing-free arrangement to ensure rapid and fine processing, and then achieves the purpose of rapid cutting through a scientific arrangement of blades. This can effectively reduce the load during the machine processing process compared to direct fine processing, and can also ensure a higher degree of cutting surface finish.

[0029] (2) The present application designs the roughing tool group into a structure in which a suspended tool holder 1 cooperates with a roughing tool blade, and designs the fine tool group into a structure in which a suspended tool holder 2 cooperates with a fine tool blade. In this way, the roughing tool blade and the fine tool blade can be suspended for processing during use, and the roughing tool blade can ensure fast chip removal through the arc surface during cutting, and the fine tool blade can ensure fast chip removal through the chip removal groove during cutting, thereby ensuring a good cutting effect during the processing. In addition, the suspended processing method makes it easier for the blade to dissipate heat, which can effectively increase the service life of the blade.

[0030] (3) The present application ensures that the cutting radius of the roughing blade can be arbitrarily increased during use by installing a heightening pad one on a floating tool holder one, and ensures that the cutting radius of the fine knife blade can be arbitrarily increased during use by installing a heightening pad two on a floating tool holder two. This allows the cutting radius to be flexibly adjusted by stacking different numbers of heightening pads during use, thereby ensuring that the equipment is very flexible during use and has the advantages of being easy to use and easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a three-dimensional diagram of the overall structure of the device of the present invention;

[0033] Figure 2 yes Figure 1 a front view of the device shown;

[0034] Figure 3 yes Figure 2 A stereoscopic view of the roughing knife set shown in the first viewing angle;

[0035] Figure 4 yes Figure 2 A stereoscopic view of the roughing knife set shown in the second viewing angle;

[0036] Figure 5 yes Figure 3 a top view of the device shown;

[0037] Figure 6 is a three-dimensional diagram of a suspended knife holder 1 in an embodiment of the present invention;

[0038] Figure 7 is a three-dimensional diagram of a rough knife blade in an embodiment of the present invention;

[0039] Figure 8 It is a three-dimensional diagram of the rough knife blade and the heightening pad in the embodiment of the present invention;

[0040] Fig. 9 yes Figure 2 A three-dimensional view of the finishing knife group shown;

[0041] Fig.10 yes Fig. 9 A three-dimensional view of the suspended knife holder 2 shown;

[0042] Fig.11 yes Fig. 9 A perspective view of the stiletto blade shown in a first viewing angle;

[0043] Fig.12 yes Fig. 9 A perspective view of the stiletto blade shown at a second viewing angle;

[0044] Fig.13 It is a three-dimensional diagram of the cooperation between the slender knife blade and the height-increasing pad in an embodiment of the present invention.

[0045] In the figure: 1. cylindrical cutter body; 11. shaft head; 12. shaft rod; 2. roughing cutter row; 201. base; 202. V-shaped stopper; 203. arc surface; 204. screw hole one; 205. stepped hole one; 21. roughing cutter group; 211. floating cutter holder one; 212. roughing cutter blade; 213. screw one; 214. heightening pad one; 3. finishing cutter row; 301. first cutting edge; 302. second cutting edge; 303. stepped hole two; 304. threaded hole two; 31. finishing cutter group; 311. floating cutter holder two; 312. fine cutter blade; 313. screw two; 314. chip groove; 315. limit plate; 316. heightening pad two. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0047] Example 1

[0048] Reference Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, a high-efficiency discardable spiral suspended cutter shaft with a rough and fine combination structure includes a cylindrical cutter body 1, and a shaft head 11 and a shaft rod 12 are coaxially arranged at both ends of the cylindrical cutter body 1. The cylindrical cutter body 1, the shaft head 11 and the shaft rod 12 are formed as one piece, and a rough milling cutter row 2 and a fine milling cutter row 3 are arranged on the outer side of the cylindrical cutter body 1. The rough milling cutter row 2 and the fine milling cutter row 3 are distributed at intervals, and the rough milling cutter row 2 and the fine milling cutter row 3 are both distributed on the outer side of the cylindrical cutter body 1 in a spiral manner, and the rough milling cutter row 2 and the fine milling cutter row 3 are both fixedly connected to the cylindrical cutter body 1. By designing the cutter shaft to be a structure in which a cylindrical cutter body 1 and two cutter rows cooperate, when it is easy to use, the cylindrical cutter body 1 can be connected to an external motor to drive the two cutter rows to rotate for processing. In this way, when the wood passes over the cutter shaft, its surface can be quickly planed and processed. By arranging a shaft head 11 and a shaft rod 12 coaxially at both ends of the cylindrical cutter body 1, the shaft head 11 and the shaft rod 12 can ensure the stable installation of the cylindrical cutter body 1 when it is convenient to use, and at the same time, it can ensure that it can rotate stably during use. At the same time, by arranging a rough milling cutter row 2 and a fine milling cutter row 3 on the outer surface of the cylindrical cutter body 1, when in use, three groups of rough milling cutter rows 2 and three groups of fine milling cutter rows 3 can be combined for cutting processing. The rough milling cutter row 2 is arranged sparsely, and the fine milling cutter row 3 is arranged densely. During the processing, the blades with a sparse arrangement start segmented cutting, and the blades with a dense arrangement start fine cutting. This combination not only makes cutting very easy, but also makes the surface very smooth.

[0049] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the roughing cutter row 2 is composed of a plurality of roughing cutter groups 21, which are spaced apart and have a pointed structure. The plurality of roughing cutters are neatly arranged along the direction of the spiral line to form a roughing cutter row 2, and a certain gap is spaced apart between the roughing cutter groups 21, so that segmented cutting can be achieved during processing. In actual use, the pointed structure of the roughing cutter group 21 can ensure better cutting into the wood for throwing and cutting operations, which can greatly reduce the load during machine processing. The roughing cutter group 21 includes a suspended cutter seat 211 and a roughing cutter blade 212. The suspended cutter seat 211 is fitted and fixed on the outer surface of the cylindrical cutter body 1, and the roughing cutter blade 212 is installed on the head of the suspended cutter seat 211, and the roughing cutter blade 212 is fixedly connected to the suspended cutter seat 211 by a screw 213. By designing the roughing knife set 21 into a structure in which a floating knife seat 211 and a roughing knife blade 212 cooperate, the roughing knife blade 212 can be positioned and installed on the floating knife seat 211 for easy use, and then fixedly connected by a screw 213. The screw connection method is not only convenient for quick installation, but also convenient for the roughing knife blade 212 to be disassembled and polished at any time. The floating knife seat 211 includes a base 201 and a V-shaped stopper 202. The front end of the base 201 is symmetrically provided with an arc surface 203, and the upper end surface of the base 201 is provided with a screw hole 204 corresponding to the screw 213. The V-shaped stopper 202 is installed on the upper end surface of the base 201, and the V-shaped stopper 202 and the base 201 are integrally formed. By designing the suspension knife seat 211 as a structure in which the base 201 and the V-shaped stopper 202 cooperate, the base 201 can be used to fix the base 201 on the outer side of the cylindrical knife body 1 for easy use, and the base 201 can be used to ensure that the roughing blade 212 has a certain height when installed, so as to achieve the purpose of suspension planing. The suspension design can not only ensure faster chip removal, but also the suspension planing processing method is easier to dissipate heat, which can greatly increase the service life. The upper and lower surfaces of the roughing blade 212 are both set in a rhombus shape, and the lower end surface of the roughing blade 212 is smaller than the upper end surface. The center of the roughing blade 212 is provided with a stepped hole 205 corresponding to the screw hole 204. By setting the roughing knife blade 212 to a diamond structure with a larger upper end and a smaller lower end, a cutting slope can be formed between the top and the bottom when in use, and the diamond structure can ensure that all four ends are cutting heads, so that the roughing knife blade 212 can be switched at the four ends when in use, which can greatly increase the service life of the blade, and by opening a stepped hole 205 in the center of the roughing knife blade 212, it is convenient to use the stepped hole 205 to correspond to the screw hole 204, ensuring that the screw 213 can be better fixed to the screw hole through the stepped hole 205 during use, and the screw cap of the screw 213 can be received in the stepped hole to ensure the flatness of the upper surface of the roughing knife blade 212, so that the screw will not affect the normal processing and use of the roughing knife blade 212 during processing.

[0050] Reference Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the fine milling cutter row 3 is composed of a plurality of fine cutter groups 31, which are arranged without gaps between the fine cutter groups 31, and the fine cutter groups 31 are of a flat-head structure. The fine cutters are neatly arranged along the direction of the spiral line to form a fine milling cutter row 3, and the fine cutter groups 31 are arranged without gaps between them, so that the surface of the wood can be precisely processed by the neat fine cutter groups 31, and the flat-head structure of the fine cutter groups 31 is spliced ​​together for cutting, which can effectively increase the smoothness of the cutting surface. The fine cutter group 31 includes a second floating cutter seat 311 and a fine knife blade 312, the second floating cutter seat 311 is fitted and fixed on the outer surface of the cylindrical cutter body 1, the fine knife blade 312 is installed on the upper end surface of the second floating cutter seat 311, and the fine knife blade 312 is fixedly connected to the second floating cutter seat 311 by a second screw 313. By designing the fine knife set 31 into a structure in which the suspended knife seat 2 311 and the fine knife blade 312 cooperate, the fine knife set 311 can be fixed on the outer surface of the cylindrical knife body 1 for easy use, and the fine knife blade 312 can be stably positioned and installed by the setting of the suspended knife seat 2 311, and the fine knife blade 312 can also be suspended and installed by the setting of the suspended knife seat 2 311, and the fine knife blade 312 is fixedly installed on the suspended knife seat 2 311 by the screw 2 313, which can be convenient for replacement and use later. The front end surface of the suspended knife seat 2 311 is provided with a chip removal groove 314, and the upper end surface of the suspended knife seat 2 311 is integrally formed with a limit plate 315 for limiting the fine knife blade 312, and the center of the suspended knife seat 2 311 is provided with a threaded hole 2 304 for the installation of the screw 2 313. By providing a chip removal groove 314 on the front end face of the second floating tool holder 311, it is ensured that the chips processed by the fine knife blade 312 can be discharged along the chip removal groove 314, and when a plurality of second floating tool holders 311 are arranged together, a long chip removal channel can be formed through the chip removal groove 314, ensuring that the processed chips can be stably discharged from the knife shaft. The front end face of the fine knife blade 312 is provided with a first blade face 301 and a second blade face 302, both of which are inclined downward, and the angle between the first blade face 301 and the second blade face 302 is 150 degrees, and a stepped hole 2 303 corresponding to the threaded hole 2 304 is provided in the center of the fine knife blade 312. By providing the first blade surface 301 and the second blade surface 302 on the front end face of the fine knife blade 312, it is easy to ensure better chip discharge through the first blade surface 301 and the second blade surface 302 during processing by the fine knife blade 312, and at the same time, by limiting the angle between the first blade surface 301 and the second blade surface 302, the good cutting effect of the fine knife blade 312 is ensured. By opening a stepped hole 2 303 corresponding to the threaded hole 2 304 in the center of the fine knife blade 312, it is convenient for the screw 2 313 to be positioned and connected.

[0051] Working principle: During actual use, a number of suspended tool holders 211 and 311 are evenly fixed along the spiral direction on the outer side of the cylindrical tool body 1. When cutting processing is required, the corresponding roughing blade 212 and fine blade can be installed on the suspended tool holder 211 and the suspended tool holder 311 respectively, and then fixed by screws. The processed blades are supported by the suspended tool holder to realize suspended processing. When the wood passes over the knife shaft, it can be cut in sections by the roughing cutter row 2, and the corresponding fine milling cutter row 3 can be used to achieve fine processing. Moreover, the processing debris of the segmented cutting can be discharged from the arc surface 203, and the debris in the fine processing process can be stably discharged through the corresponding chip discharge groove 314, ensuring that the wood surface can be cut quickly and stably.

[0052] Example 2

[0053] Reference Figure 2 and Fig. 9 As shown, a high-efficiency discarded spiral suspension cutter shaft with a rough and fine combined structure includes a cylindrical cutter body 1, and a shaft head 11 and a shaft rod 12 are coaxially arranged at both ends of the cylindrical cutter body 1. The cylindrical cutter body 1, the shaft head 11 and the shaft rod 12 are formed in one piece, and a rough milling cutter row 2 and a fine milling cutter row 3 are arranged on the outer surface of the cylindrical cutter body 1. The rough milling cutter row 2 and the fine milling cutter row 3 are distributed at intervals, and the rough milling cutter row 2 and the fine milling cutter row 3 are both distributed on the outer surface of the cylindrical cutter body 1 in a spiral manner, and the rough milling cutter row 2 and the fine milling cutter row 3 are both fixedly connected to the cylindrical cutter body 1. The rough milling cutter row 2 is composed of a plurality of rough cutter groups 21, and the rough cutter groups 21 are distributed at intervals, and the rough cutter groups 21 are pointed structures. The roughing tool group 21 includes a floating tool seat 1 211 and a roughing tool blade 212. The floating tool seat 1 211 is fitted and fixed on the outer surface of the cylindrical tool body 1. The roughing tool blade 212 is installed on the head of the floating tool seat 1 211, and the roughing tool blade 212 is fixedly connected to the floating tool seat 1 211 by a screw 1 213. The fine milling cutter row 3 is composed of a plurality of fine tool groups 31. The fine tool groups 31 are distributed without gaps, and the fine tool groups 31 are flat-head structures. The fine tool group 31 includes a floating tool seat 2 311 and a fine knife blade 312. The floating tool seat 2 311 is fitted and fixed on the outer surface of the cylindrical tool body 1. The fine knife blade 312 is installed on the upper end surface of the floating tool seat 2 311, and the fine knife blade 312 is fixedly connected to the floating tool seat 2 311 by a screw 2 313.

[0054] Reference Figure 8 and Fig.13As shown, a plurality of heightening pads 214 are installed on the floating knife seat 1 211, and the heightening pads 214 are fixedly installed between the floating knife seat 1 211 and the coarse knife blade 212. A plurality of heightening pads 316 are installed on the floating knife seat 2 311, and the heightening pads 316 are fixedly installed between the floating knife seat 2 311 and the fine knife blade 312. When it is necessary to change the height of the coarse knife blade 212, several heightening pads 214 can be installed on the suspended knife seat 211, and then the coarse knife blade 212 can be supported by the heightening pads 214, and then the several heightening pads 214 and the coarse knife blade 212 can be fixed on the suspended knife seat by replacing the screws of corresponding length, so that they can be used for normal cutting. When it is necessary to change the height of the fine knife blade 312, several heightening pads 2 316 can be installed on the suspended knife seat 2 311, and similarly, several heightening pads 2 316 and the fine knife blade 312 can be fixed on the suspended knife seat 2 311 with screws of appropriate length for use.

[0055] Working principle: During the tool shaft processing, if the roughing blade 212 and the fine blade are worn or deeper cutting is required, a heightening pad 214 can be installed on the floating tool holder 211 to increase the cutting height of the roughing blade 212. At the same time, a heightening pad 216 can be installed on the floating tool holder 2 311 to increase the cutting height of the fine blade 312. This is more conducive to meeting different cutting requirements and making the processing more flexible.

[0056] The implementation principle and technical effects of the device provided in the embodiment of the present invention are the same as those of Example 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Example 1.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combined structure, comprising a cylindrical cutter body (1), characterized in that: The two ends of the cylindrical cutter body (1) are coaxially provided with a shaft head (11) and a shaft rod (12); the cylindrical cutter body (1), the shaft head (11) and the shaft rod (12) are integrally formed; a roughing cutter row (2) and a fine milling cutter row (3) are provided on the outer side of the cylindrical cutter body (1); the roughing cutter row (2) and the fine milling cutter row (3) are arranged at intervals, and the roughing cutter row (2) and the fine milling cutter row (3) are both spirally distributed on the outer side of the cylindrical cutter body (1); and the roughing cutter row (2) and the fine milling cutter row (3) are both fixedly connected to the cylindrical cutter body (1).

2. According to claim 1, a high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure is characterized in that: The roughing cutter row (2) is composed of a plurality of roughing cutter groups (21), the roughing cutter groups (21) are distributed at intervals, and the roughing cutter groups (21) are pointed structures.

3. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 2 is characterized in that: The fine milling cutter row (3) is composed of a plurality of fine cutter groups (31), the fine cutter groups (31) are distributed without gaps, and the fine cutter groups (31) are of flat-head structure.

4. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 3 is characterized in that: The roughing knife group (21) comprises a floating knife seat (211) and a roughing knife blade (212); the floating knife seat (211) is fixedly attached to the outer surface of the cylindrical knife body (1); the roughing knife blade (212) is installed on the head of the floating knife seat (211); and the roughing knife blade (212) is fixedly connected to the floating knife seat (211) via a screw (213).

5. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 4 is characterized in that: The floating knife seat (211) comprises a base (201) and a V-shaped stop seat (202); the front end of the base (201) is symmetrically provided with an arc surface (203); the upper end surface of the base (201) is provided with a screw hole (204) corresponding to the screw (213); the V-shaped stop seat (202) is installed on the upper end surface of the base (201); and the V-shaped stop seat (202) and the base (201) are integrally formed.

6. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 5 is characterized in that: The upper and lower surfaces of the roughing blade (212) are both arranged in a rhombus shape, and the lower end surface of the roughing blade (212) is smaller than the upper end surface. A stepped hole (205) corresponding to the screw hole (204) is provided at the center of the roughing blade (212).

7. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 6 is characterized in that: The fine knife assembly (31) comprises a second floating knife seat (311) and a fine knife blade (312); the second floating knife seat (311) is fitted and fixed on the outer surface of the cylindrical knife body (1); the fine knife blade (312) is installed on the upper end surface of the second floating knife seat (311); and the fine knife blade (312) is fixedly connected to the second floating knife seat (311) by a second screw (313).

8. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 7 is characterized in that: The front end surface of the second floating tool holder (311) is provided with a chip removal groove (314), and the upper end surface of the second floating tool holder (311) is integrally formed with a limiting plate (315) for limiting the fine knife blade (312), and the center of the second floating tool holder (311) is provided with a threaded hole (304) for installing a second screw (313).

9. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to claim 8, characterized in that: The front end surface of the slitting blade (312) is provided with a first cutting edge (301) and a second cutting edge (302), the first cutting edge (301) and the second cutting edge (302) are both inclined downward, and the angle between the first cutting edge (301) and the second cutting edge (302) is 150°, and a stepped hole (303) corresponding to the threaded hole (304) is provided at the center of the slitting blade (312).

10. The high-efficiency discarding spiral suspension cutter shaft with a coarse and fine combination structure according to any one of claim 9, characterized in that: The first floating knife seat (211) is provided with a plurality of first heightening pads (214), and the first heightening pads (214) are fixedly installed between the first floating knife seat (211) and the rough knife blade (212). The second floating knife seat (311) is provided with a plurality of second heightening pads (316), and the second heightening pads (316) are fixedly installed between the second floating knife seat (311) and the fine knife blade (312).

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