A multifunctional CNC precision milling machine

Abstract

A multifunctional CNC precision milling machine includes: a thickness cutting mechanism including at least two workstations, each of which is equipped with at least one flat knife and a power source for driving the flat knife, and two adjacent flat knives are used to cut the upper and lower surfaces of bamboo respectively; and a width cutting mechanism including at least one workstation, each of which is equipped with two vertical knives and a power source for driving the vertical knives, and the two vertical knives are used to cut the left and right surfaces of bamboo. It also includes a plurality of feeding devices. The beneficial effect of the present invention is that it is used to realize the processing of cutting the two side surfaces and the upper and lower surfaces of a rod-shaped body, and the feed amount of the tool can be automatically adjusted during the processing, and the forming efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of processing and production, in particular to a multifunctional numerically controlled precision milling machine. Background Art

[0002] Today's industrial development requires numerical control and intelligence. The existing old mechanical equipment can no longer keep up with the development requirements of the times. Improvement and innovation are new demands.

[0003] The existing precision milling machine is a kind of extensive machine, which is far from meeting the needs of users, whether in processing technology, energy saving and environmental protection, especially the extremely low material utilization rate. After years of scientific research and unremitting practice, we have developed a new generation of multifunctional CNC bamboo strip precision milling machine based on the existing precision milling machine, which completely solves the various shortcomings and deficiencies of the existing precision milling machine, making the material processing process more scientific, labor-saving and environmentally friendly.

[0004] A high-speed and high-precision CNC automatic wood lathe with a publication number of CN 103231421A and a publication date of August 7, 2013 discloses a rod clamping linear pushing mechanism; the rod clamping linear pushing mechanism includes a slider seat on a frame that is limited to move on a linear track, a rod side clamping platform mechanically fixed on the slider seat, and a rod side clamping lever connected to the slider seat through a fulcrum V; the end of the power arm of the rod side clamping lever is hinged with the cylinder piston rod; the advance block and the retreat block mechanically fixed on the slider seat are respectively located on both sides of the rod side clamping lever power arm; the rod side clamping lever resistance arm and the rod side clamping platform together form a rod clamp, and the minimum distance between the two is equivalent to the diameter of the thin bamboo wood rod. The pushing mechanism involved in this high-speed and high-precision CNC automatic wood lathe can only load a single piece discontinuously, and cannot achieve continuous pushing and loading, which is not suitable for manufacturers to improve production efficiency; the entire clamping mechanism has too few clamping points, and cannot achieve multi-point clamping and multi-point CNC cutting. Summary of the invention

[0005] The present invention aims to solve the above-mentioned shortcomings of the prior art and provide a multifunctional CNC precision milling machine, which can greatly improve production efficiency, make full use of materials, and realize various cutting schemes safely, conveniently and quickly.

[0006] The present invention solves the technical problem by adopting a technical solution: the multifunctional CNC fine milling machine comprises:

[0007] The thickness cutting mechanism comprises at least two workstations, each of which is equipped with at least one flat knife and a power source for driving the flat knife, and two adjacent flat knives are used to cut the upper and lower surfaces of the bamboo respectively; and

[0008] The width cutting mechanism comprises at least one workstation, each of which is equipped with two vertical knives and a power source for driving the vertical knives. The two vertical knives are used for cutting the left and right sides of the rod-shaped material.

[0009] The principle of the present invention is to process the rod-shaped material through the thickness cutting mechanism and the width cutting mechanism. The thickness cutting mechanism cuts the upper and lower surfaces of the rod-shaped material, and the width cutting mechanism cuts the left and right surfaces of the rod-shaped material, thereby reducing the excess and ensuring the quality of the finished product.

[0010] Further improvement, each station of the thickness cutting mechanism is equipped with a first motor, a first eccentric member and a first transmission member of the same number as the flat knives, the flat knives are installed one by one on the first eccentric member, the first motor drives the first eccentric member through the first transmission member, and drives the flat knives to rotate eccentrically. Through the eccentric member, the feed amount of the flat knife is a variable value, rather than a fixed value, and the tool is floated according to the height difference of the upper or lower surface. The finished surface after cutting is not only a surface without an inclination angle, but also a surface with an inclination angle. The eccentric member can be driven by the motor, and the use effect is good and efficient.

[0011] Further improvement, the thickness cutting mechanism is equipped with two flat knives at the downstream station, and the two are used to cut the upper and lower surfaces of the bamboo respectively. The upper and lower surfaces of the rod-shaped material can be processed synchronously, the excess on the upper and lower surfaces of the material can be removed, and the rod-shaped material of the final thickness can be obtained.

[0012] Further improvement, the station of the width cutting mechanism is equipped with a second motor, two second eccentrics, and a second transmission member. The two vertical knives are respectively installed on the two second eccentrics. The second motor drives the two second eccentrics through the second transmission member and drives the two vertical knives to rotate eccentrically. Through the eccentric member, the feed amount of the vertical knife is a variable value instead of a fixed value. According to the surface difference between the two sides, the tool is floated. The finished surface after cutting is not only a surface without an inclination angle, but also a surface with an inclination angle. The eccentric member can be driven by the motor, which has good use effect and high efficiency.

[0013] Further improvement, the station of the width cutting mechanism is also equipped with two distance adjusting pieces, the rod-shaped material passes through the interval between the two distance adjusting pieces, the two distance adjusting pieces are located below the vertical knife, the second motor drives the two second eccentric pieces through the second transmission piece, and the second eccentric piece drives the distance adjusting piece to move inward or outward. Considering that the width of each rod-shaped material is different, two movable distance adjusting pieces are used to move outward or inward according to the width of the rod-shaped material, so as to meet the passage of rod-shaped materials of different widths and facilitate processing.

[0014] Further improvement, the distance adjusting member is equipped with a first limiter and a second limiter arranged along the feeding direction and located on both sides of the vertical knife, the two first limiters on the two distance adjusting members are symmetrically arranged, and the two second limiters are symmetrically arranged, and form a rectangular body plane, and there is a gap between the two first limiters and the two second limiters for the rod-shaped material to pass through. The two first limiters and the two second limiters are used for fixed width auxiliary cutting, limiting the rod-shaped material and providing sufficient clamping constraints, so that the rod-shaped material will not move during cutting, thereby achieving a good cutting effect and making the two sides of the rod-shaped material flat after the width is fixed.

[0015] Further improvement, one of the first stoppers is fixed and serves as a positioning reference for the rod-shaped material during width processing, and the other first stopper can move inward or outward according to the overall width of the rod-shaped material. Considering that the width of each rod-shaped material is different, such a setting can achieve automatic adaptive adjustment without manual adjustment.

[0016] Further improvement, a tensioning wheel mechanism is provided between the flat blade and its power source. The flat blade and its power source use a belt as a power transmission medium. The belt is elastic, that is, its tension needs to be ensured during use. Therefore, the tension of the belt is adjusted through the tensioning wheel mechanism to keep it in a tensioned state at all times, avoiding the situation that the tension is insufficient and causes slipping or the tension is too large and causes breakage.

[0017] For further improvement, the flat knife and its corresponding workstation are equipped with a clamping piece, which is used to clamp the rod-shaped material during the cutting process, thereby increasing the rod-shaped material's ability to resist stress during cutting, reducing vibration, and improving the cutting effect.

[0018] Further improvement, the pressing piece includes a mounting plate and at least two pressing pieces. The mounting plate installs the pressing piece on the work station, and the two pressing pieces press the rod-shaped material from above and realize self-adaptation. The rod-shaped material is pressed and limited, and the pressing piece is self-adaptive, and can automatically adjust the use position according to the thickness of the rod-shaped material and the outward inclined part, thereby ensuring a stable restraining effect.

[0019] A multifunctional CNC fine milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC fine milling machine. The feeding device includes a group of upper feeding wheels, and the feeding wheels are used to clamp the upper and lower surfaces of bamboo materials. The feeding device is driven by one or more third motors.

[0020] For further improvement, the lower feed wheel is the positioning reference, which is fixedly mounted on the straight rod, the upper feed wheel can adaptively float, which is fixedly mounted on a rod with a universal joint or the upper feed wheel is the positioning reference, which is fixedly mounted on the straight rod, the lower feed wheel can adaptively float, which is fixedly mounted on a rod with a universal joint, and the rod with a universal joint or the straight rod is transmission-connected to one or more third motors.

[0021] The beneficial effects of the present invention are:

[0022] (1) The present invention realizes the processing of rod-shaped materials. Multiple mechanisms process the rod-shaped materials at different positions, realizing multiple uses of one machine, and processing irregular finished product styles by setting different functional relationships.

[0023] (2) The present invention determines the thickness of the rod-shaped material by means of a thickness cutting mechanism, and multiple workstations perform multiple processes on the upper and lower surfaces of the rod-shaped material to remove excess residues on the upper and lower surfaces. After the excess residues are removed, the upper and lower surfaces of the rod-shaped material are inclined surfaces or planes.

[0024] (3) The present invention uses a width cutting mechanism to set the width of the rod-shaped material and remove the excess on both sides. After the excess is removed, the two side surfaces of the rod-shaped material are inclined surfaces or planes.

[0025] (4) The present invention only needs to set parameters according to the needs and the natural form of the material, and the machine can be adjusted conveniently and quickly to make the finished product more beautiful, save more materials, save more time, and be easier to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the arrangement of the thickness cutting mechanism and the width cutting mechanism of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the vertical knife station of the width cutting mechanism of the present invention;

[0028] Figure 3 It is a schematic diagram of the planar structure of a workstation in the thickness cutting mechanism of the present invention, driving the flat knife to adjust the feed amount;

[0029] Figure 4 It is a schematic diagram of the planar structure of another station in the thickness cutting mechanism of the present invention, driving the flat knife to adjust the feed amount;

[0030] Figure 5 It is a schematic diagram of the planar structure of another station in the thickness cutting mechanism of the present invention, driving the flat knife to adjust the feed amount;

[0031] Figure 6 It is a schematic diagram of the planar structure of a workstation in the width cutting mechanism of the present invention, driving the vertical cutter to adjust the feed amount;

[0032] Figure 7 It is a station of the thickness cutting mechanism of the present invention, and a three-dimensional structural schematic diagram of a tensioning wheel mechanism added to the power source;

[0033] Figure 8 It is another station of the thickness cutting mechanism of the present invention, and a three-dimensional structural schematic diagram of a tensioning wheel mechanism added to the power source;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the pressing member of the present invention for processing rod-shaped materials;

[0035] Fig.10 This is a schematic diagram of the three-dimensional structure of the pressing member of the present invention for processing a rod-shaped material;

[0036] Fig.11 It is a schematic diagram of the three-dimensional structure of the upper and lower surfaces of the pressing member of the present invention for processing rod-shaped materials;

[0037] Fig.12 It is a schematic diagram of the three-dimensional structure of the feeding device with upright installation of the present invention;

[0038] Fig.13 It is a schematic diagram of the three-dimensional structure of the feeding device with inverted mounting according to the present invention;

[0039] Fig.14 The three-dimensional structural schematic diagram of the rod-shaped material processed by the present invention shows four styles in an unprocessed state and after processing. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings:

[0041] Embodiment 1,

[0042] See attached Figure 1 , 2 , 14. Multifunctional CNC milling machine, including:

[0043] The thickness cutting mechanism 1 comprises at least two workstations, each of which is equipped with at least one flat knife 1-1 and a power source for driving the flat knife 1-1, and two adjacent flat knives 1-1 are used to cut the upper and lower surfaces of the rod-shaped material respectively; and

[0044] The width cutting mechanism 2 includes at least one workstation, each of which is equipped with two vertical knives 2-1 and a power source for driving the vertical knives 2-1. The two vertical knives 2-1 are used to cut the left and right sides of the rod-shaped material.

[0045] The rod-shaped material is processed by the thickness cutting mechanism 1 and the width cutting mechanism 2 to obtain various styles of rod-shaped materials, Style 1: all four sides are flat, Style 2: the upper and lower sides are inclined, and the left and right sides are flat, Style 3: the upper and lower sides are flat, and the left and right sides are inclined, Style 4: all four sides are inclined. It is particularly pointed out that this CNC precision milling machine is equipped with a positioning probe. The width and thickness values ​​read by the positioning probe are the values ​​set by the workers before the CNC precision milling machine processing, and the difference is obtained by comparing the values ​​obtained by projecting the rod-shaped material with the values ​​set before the CNC precision milling machine processing, and the difference is the cutting amount, which realizes automatic measurement and improves production efficiency. The power source is a three-phase asynchronous motor that drives the cutter shaft to rotate for cutting.

[0046] Each station of the thickness cutting mechanism 1 is equipped with a first motor 1-2, a first eccentric member 1-3 having the same number as the flat knife 1-1, and a first transmission member 1-4. The flat knife 1-1 is installed on the first eccentric member 1-3 in a one-to-one correspondence. The first motor 1-2 drives the first eccentric member 1-3 through the first transmission member 1-4, and drives the flat knife 1-1 to rotate eccentrically. The flat knife 1-1 of the traditional thickness cutting mechanism 1 is immovable during cutting, and the cutting amount is set before processing, and then it is cut in one go. The cutting amount is the difference between the highest point and the lowest point, so that the surface of the rod-shaped material obtained after cutting is a plane without height difference. However, such a method leads to limited shapes that the rod-shaped material can present. The limited shape style will indirectly affect the purpose and the number of uses. Moreover, the flat knife 1-1 needs to be manually adjusted for rod-shaped materials with different cutting requirements. Therefore, each rod-shaped material needs to be positioned and fed once, and the difference needs to be accurately calculated, which is inefficient and ineffective, and also increases the use of rod-shaped materials. In order to increase the adaptability of the CNC precision milling machine, the flat knife 1-1 in the thickness cutting mechanism 1 can be automatically adjusted, which is achieved through the first eccentric member 1-3. The knife shaft on which the flat knife 1-1 is installed is rotatably connected to the first eccentric member 1-3 and driven to rotate by the power source, while the first motor 1-2 drives the first transmission member 1-4 to rotate. The first transmission member 1-4 drives the first eccentric member 1-3 to rotate, and the rotation of the first eccentric member 1-3 realizes the change of the feed amount of the flat knife 1-1. The first motor 2-2 is a servo motor, which realizes that the flat knife 2-1 automatically changes the feed amount according to the change of the cutting surface. In this way, the flat knife 1-1 gradually changes the feed depth according to the height of the plane during cutting, ensuring that the cutting amount for the entire section is a floating value rather than an unchanging fixed value, thereby realizing the characteristics of diversified styles and material saving of rod-shaped materials. After completion, two rod-shaped materials of the same shape and size are taken, and one side of the two rod-shaped materials has a part with the same angle offset. When the two rod-shaped materials are spliced, the two rod-shaped materials can be spliced ​​into a rectangular shape. At the same time, the feed amount adjustment of the tool is not a one-time linear movement. Through the flexible transition of the arc, the machine wear is reduced, so that the processing accuracy of the machine can be guaranteed for a long time and the maintenance times are reduced. The first transmission members 1-4 here are respectively the main transmission gear on the first motor 1-2 and the auxiliary transmission gear on the first eccentric member 1-3.

[0047] The thickness cutting mechanism 1 is equipped with two flat knives 1-1 at the most downstream station, and the two are used to cut the upper and lower surfaces of the rod-shaped material respectively. The upper and lower surfaces of the rod-shaped material both have parts that need to be cut, and these parts have a certain thickness and connection strength. In the early processing, single flat knives 1-1 at different stations are used, and the flat knives 1-1 of one station are on the top and the flat knives 1-1 of another station are on the bottom to do targeted processing on these parts, so as to avoid one-time processing, avoid increased tool wear, and also improve the yield rate. Therefore, after the early processing is completed, a cutting station with two flat knives 1-1 is set, and the upper and lower surfaces of the rod-shaped material are synchronously cut at this station, and the thickness of the rod-shaped material can be determined, so that the final thickness after cutting is the value set by the worker on the CNC precision milling machine before processing, so that the thickness of each rod-shaped material after cutting is consistent.

[0048] The station of the width cutting mechanism 2 is equipped with a second motor 2-2, two second eccentrics 2-3, and a second transmission member 2-4. The two vertical knives 2-1 are respectively installed on the two second eccentrics 2-3. The second motor 2-2 drives the two second eccentrics 2-3 through the second transmission member 2-4, and drives the two vertical knives 2-1 to rotate eccentrically. The use principle of the width cutting mechanism 2 is consistent with that of the thickness cutting mechanism 1. The difference lies in the different processing surfaces. The width cutting mechanism 2 targets the two side surfaces, while the thickness cutting mechanism 1 targets the upper and lower surfaces. That is, it will not be repeated. The second motor 2-2 here is also a servo motor, which enables the vertical knife 2-1 to automatically change the feed amount according to the change of the cutting surface.

[0049] The station of the width cutting mechanism 2 is also equipped with two distance adjusting members 2-5. The rod-shaped material passes through the interval between the two distance adjusting members 2-5. The two distance adjusting members 2-5 are located below the vertical knife 2-1. The second motor 2-2 drives the two second eccentric members 2-4 through the second transmission member 2-4. The second eccentric member 2-4 drives the distance adjusting member 2-5 to move inward or outward. The rod-shaped material entering the width cutting mechanism 3 is not a rod-shaped material of equal width. There are different residual materials to be cut on both sides. Through the two distance adjusting members 2-5, the interval between the two distance adjusting members 2-5 is the interval for the rod-shaped material to pass through, which is convenient for the rod-shaped material to enter, and also avoids the rod-shaped material from breaking due to the inconsistency with the interval. The lower end of each distance adjusting member 2-5 is provided with a linear bearing slider / slideway pair, and a cam is installed on the second eccentric member 2-3. The cam is against the slider of the linear bearing slider / slideway pair. The friction generated between the rotation of the cam and the slider realizes the movement of the slider, thereby driving the distance adjusting member 2-5 to move.

[0050] The distance adjusting member 2-5 is equipped with a first stopper 2-5a and a second stopper 2-5b arranged along the feeding direction and located on both sides of the vertical knife 2-1. The two first stoppers 2-5a and the two second stoppers 2-5b on the two distance adjusting members 2-5 are symmetrically arranged and form a rectangular plane. There is a spacing between the two first stoppers 2-5a and the two second stoppers 2-5b for the rod-shaped material to pass through. The two first stoppers 2-5a and the two second stoppers 2-5b can increase the stress resistance of the rod-shaped material during processing, especially the stress resistance of the cut part, avoid the rod-shaped material from jumping up and down during cutting, and ensure a good side cutting effect. At the same time, the first stopper 2-5a and the second stopper 2-5b are both plates of the same shape, and their ends close to the vertical knife have an arc tangent to the blade of the vertical knife 2-1. This approach further optimizes and increases the stress resistance of the rod-shaped material during processing.

[0051] One of the first stoppers 2-5a is fixedly arranged and serves as a positioning reference for the rod-shaped material during width processing, and the other first stopper 2-5a can be offset outward or inward according to the overall width of the rod-shaped material. In order to better improve the use effect of the present CNC precision milling machine, the two first limit members 2-5a can be adjusted according to the residual material inclined outward on the side of the rod-shaped material. The two first limit members 2-5a are set to be one movable and the other immovable. The immovable first limit member 2-5a is used as a positioning reference for the rod-shaped material, that is, one side of the rod-shaped material is against its inner wall, and the other side has residual material inclined outward, which is also against its inner wall, but the first limit member 2-5a against which this part is against moves outward or inward according to the value of the residual material. The movable first limit member 2-5a is provided with a tightening spring 4 against its outer side surface, and the other end of the tightening spring 4 is against a positioning plate 5 vertically installed on the outer side wall of the distance adjusting member 2-5. The positioning plate 5 has an inwardly extending extension plate 5, and the extension plate 5 is provided with a slide groove 5-1. The groove 5-1 has a front end opening and a lower end opening in the extension plate 5, and the front end opening and the lower end opening are both for the first limit piece 2-5a to pass through. Such a setting is not only for realizing the movement of the first limit piece 2-5a, but also for preventing rotation during movement, because the movement of the first limit piece 2-5a is controlled by the tensioning spring 4. After being affected by the extrusion force, the tensioning spring 4 itself will bend to the left and right and warp upward without constraint, so the fixed width effect cannot be achieved. Therefore, the slide groove 5-1 is used as a constraint, and the upper surface of the slide groove 5-1 is in contact with the upper surface of the first limit piece 2-5a, and the extension plate 5 and the tensioning spring 4 are symmetrically arranged on both sides, that is, two positioning points are provided, so that the first limit piece 2-5a has good movement stability and can provide sufficient resistance to rod-shaped materials.

[0052] Embodiment 2:

[0053] See attached Figure 3 , having a first motor 1-2 and a first eccentric 1-3. The first motor 1-2 is located at the upper left middle part of the workstation. The first eccentric 1-3 is located 60° below the first motor 1-2 and is tangentially meshed with the main transmission gear through the auxiliary transmission gear. The flat knife of the first eccentric is used for processing the bottom of the rod-shaped material.

[0054] Embodiment 3:

[0055] See attached Figure 4 , having a first motor 1-2 and a first eccentric 1-3. The first motor 1-2 is located at the lower right part of the middle of the workstation. The first eccentric 1-3 is located 60° above the first motor 1-2 and is tangentially meshed with the main transmission gear through the auxiliary transmission gear. The flat knife of the first eccentric is used for processing rod-shaped materials.

[0056] Embodiment 4:

[0057] See attached Figure 5 , having two first motors 1-2 and two first eccentric pieces 1-3, the two first motors 1-2 and the two first eccentric pieces 1-3 constitute the diagonal of the plane of the rectangular body, one first motor 1-2 and one first eccentric piece 1-3 are on one side, the first motor 1-2 and the first eccentric piece 1-3 on the same side are tangentially meshed through the main transmission gear and the auxiliary transmission gear, the matching angle is 60°, and the position is presented in the form of one side with the first motor 1-2 on the top and the first eccentric piece 1-3 on the bottom, and one side with the first motor 1-2 on the bottom and the first eccentric piece 1-3 on the top, so as to realize synchronous processing of the upper and lower surfaces of the rod-shaped material, and the upper and lower flat knives 1-1 are adjusted separately according to the upper and lower conditions of the rod-shaped material, and the applicability is strong.

[0058] Embodiment 5:

[0059] See attached Figure 6 , with a second motor 2-2 and two second eccentric pieces 2-3, the two second eccentric pieces 2-3 are symmetrically arranged and meshed with each other through a sub-transmission gear, the second motor 2-2 meshes with one of the sub-transmission gears through a main transmission gear, and by driving one second eccentric piece 2-3, the other second eccentric piece 2-3 is synchronously driven, thereby realizing synchronous processing of both sides of the rod-shaped material.

[0060] Example 6

[0061] See attached Figure 7 , 8, a tensioner mechanism 3 is provided between the flat knife 1-1 and its power source. The tensioner mechanism 3 includes a swing arm 3-1 and a tensioner 3-2 rotatably connected to the swing arm 3-1. The servo motor drives the eccentric to rotate, and the tool installed will follow the rotation of the eccentric to achieve automatic feed adjustment. It is particularly noted that the knife shaft rotates in the eccentric and is an independent rotating member. The driving method uses the belt as a transmission member to transmit power to itself. However, considering the influence of the feed adjustment, the belt may have too much or too little tension, that is, the tool moves upward, that is, the belt is pulled, and the tool moves downward, the belt is loose. Therefore, in order to avoid slipping or excessive fatigue of the belt, the tension of the belt is adjusted by the tensioner mechanism 3. The tensioner 3-2 is swung by the swing arm 3-1. Swinging outward releases the belt tension and reduces the belt pressure, and swinging inward tightens the belt and increases the tension to ensure stable cutting and good cutting effect.

[0062] Embodiment 7:

[0063] See attached Fig. 9 , Structure 1: For processing the bottom of the rod-shaped material, two pressing pieces 6-2 are used, both of which press on the top of the rod-shaped material and are equidistant from the flat knife 1-1. The first pressing piece 6-2 includes an adjustable pressing arm 6-2a and a buffer 6-2b. The adjustable pressing arm 6-2a adapts to the thickness of the rod-shaped material and swings up or down following the surface thickness. Under the action of the self-resetting spring of the buffer 6-2b, the pressing arm 6-2a is always kept pressed down, which has a good pressing effect on the rod-shaped material.

[0064] Embodiment 8:

[0065] See attached Fig.10 , Structure 2: For processing rod-shaped materials, it is the same as Structure 1.

[0066] Embodiment 9:

[0067] See attached Fig.11 , Structure 3: For the simultaneous processing of the upper and lower surfaces of the rod-shaped material, different from structures 1 and 2, three pressing pieces 6-2 are used. Compared with structures 1 and 2, one more pressing piece 6-2 is set. Considering that the flat knives 1-1 on the workstations that simultaneously process the upper and lower surfaces of the rod-shaped material are distributed up and down and staggered left and right, there is one more processing point of the stress caused to the rod-shaped material, so an additional first pressing piece 6-2 is added to reduce the stress caused by the simultaneous processing of the two flat knives 1-1.

[0068] Embodiment 10:

[0069] See attached Figure 12-14A multifunctional CNC precision milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC precision milling machine, and the feeding device includes a group of upper feeding wheels, and the feeding wheels are used to clamp the upper and lower surfaces of the rod-shaped materials, and the feeding device is driven by one or more third motors.

[0070] The lower feed wheel is the positioning reference, which is fixedly mounted on the straight rod, and the upper feed wheel can adaptively float, which is fixedly mounted on a rod with a universal joint or the upper feed wheel is the positioning reference, which is fixedly mounted on the straight rod, and the lower feed wheel can adaptively float, which is fixedly mounted on a rod with a universal joint, the rod with a universal joint or the straight rod is transmission-connected to one or more third motors.

[0071] There is a functional relationship between the length, thickness and the inclination angle of the thickness or the inclination angle in the width direction of the rod-shaped material. This functional relationship is established through the feeding speed and the cutting speed, so as to achieve the purpose of processing four finished products. At the same time, irregular finished product styles B, C, D, and E are also processed through the setting of different functional relationships. A is an unprocessed state. The third motor is a servo motor. The numerical control of the speed of the third motor can transmit the speed to the upper feeding wheel and the lower feeding wheel without loss, so as to achieve power transmission without losing step.

[0072] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multifunctional CNC precision milling machine, characterized in that: include: A thickness cutting mechanism (1) comprises at least two workstations, each of which is equipped with at least one flat knife (1-1) and a power source for driving the flat knife (1-1), and two adjacent flat knives (1-1) are used to cut the upper and lower surfaces of the bamboo material respectively; and The width cutting mechanism (2) comprises at least one workstation, each workstation being equipped with two vertical knives (2-1) and a power source for driving the vertical knives (2-1), the two vertical knives (2-1) being used for cutting the left and right sides of the bamboo material; Each station of the thickness cutting mechanism (1) is equipped with a first motor (1-2), a number of first eccentric members (1-3) equal to the number of flat knives (1-1), and a first transmission member (1-4); the flat knives (1-1) are mounted on the first eccentric members (1-3) in a one-to-one correspondence; the first motor (1-2) drives the first eccentric members (1-3) through the first transmission member (1-4), and drives the flat knives (1-1) to rotate eccentrically; The thickness cutting mechanism (1) is located at the most downstream station and is equipped with two flat knives (1-1), and the two flat knives are used to cut the upper and lower surfaces of the bamboo material respectively; The workstation of the width cutting mechanism (2) is equipped with a second motor (2-2), two second eccentric members (2-3), and a second transmission member (2-4); the two vertical knives (2-1) are respectively mounted on the two second eccentric members (2-3); the second motor (2-2) drives the two second eccentric members (2-3) through the second transmission member (2-4), and drives the two vertical knives (2-1) to rotate eccentrically; The working station of the width cutting mechanism (2) is also equipped with two distance adjusting members (2-5), and the rod-shaped material passes through the interval between the two distance adjusting members (2-5). The two distance adjusting members (2-5) are located below the vertical knife (2-1). The second motor (2-2) drives the two second eccentric members (2-3) through the second transmission member (2-4), and the second eccentric members (2-3) drive the distance adjusting members (2-5) to move inward or outward.

2. The multifunctional CNC precision milling machine according to claim 1, characterized in that: The distance adjusting member (2-5) is equipped with a first limit member (2-5a) and a second limit member (2-5b) which are arranged along the feeding direction and located on both sides of the vertical knife. The two first limit members (2-5a) on the two distance adjusting members (2-5) are symmetrically arranged, and the two second limit members (2-5b) are symmetrically arranged to form a rectangular body plane. There is a spacing between the two first limit members (2-5a) and between the two second limit members (2-5b) for the rod-shaped material to pass through.

3. The multifunctional CNC precision milling machine according to claim 2, characterized in that: One of the first limiting members (2-5a) is fixedly arranged and serves as a positioning reference for the rod-shaped material during width processing, and the other first limiting member (2-5a) can be offset outward or inward according to the overall width of the rod-shaped material.

4. The multifunctional CNC precision milling machine according to claim 1, characterized in that: A tensioning wheel mechanism (3) is provided between the flat blade (1-1) and the power source to which it belongs.

5. The multifunctional CNC precision milling machine according to claim 1, characterized in that: The flat knife (1-1) and the workstation to which it belongs are equipped with a pressing piece, which is used to press the rod-shaped material during the cutting process.

6. The multifunctional CNC precision milling machine according to claim 5, characterized in that: The pressing piece comprises a mounting plate and at least two pressing pieces (6-2); the mounting plate mounts the pressing piece on a work station; the pressing piece (6-2) performs upper pressure on the rod-shaped material and realizes self-adaptation.

7. The multifunctional CNC precision milling machine according to any one of claims 1 to 6, characterized in that: The multifunctional CNC precision milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC precision milling machine. The feeding device includes a group of upper feeding wheels and lower feeding wheels for clamping the upper and lower surfaces of the bamboo material, and the feeding device is driven by one or more third motors.

8. The multifunctional CNC precision milling machine according to claim 7, characterized in that: The lower feeding wheel is a positioning reference and is fixedly mounted on a straight rod. The upper feeding wheel can adaptively float and is fixedly mounted on a rod with a universal joint or the upper feeding wheel is a positioning reference and is fixedly mounted on a straight rod. The lower feeding wheel can adaptively float and is fixedly mounted on a rod with a universal joint. The rod with a universal joint or the straight rod is transmission-connected to one or more third motors.

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