A multifunctional CNC rough milling machine

Abstract

A multifunctional CNC rough milling machine includes: a rough cutting mechanism, including two stations, one of which is equipped with a milling cutter for initially cutting the two sides of the rod-shaped material, and the other station is equipped with a freely liftable jump cutter and a power source for driving the milling cutter, and is located downstream of the station equipped with the milling cutter, and the jump cutter is used to cut the upper and lower surfaces of the rod-shaped material; and a thickness cutting mechanism, including at least two stations, each station 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 station, each station 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 the bamboo material. It also includes multiple 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 the rod-shaped, and the feed amount of the tool is automatically adjusted during the processing.

Description

Technical Field

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

[0002] The existing rough milling machine is a kind of extensive machine, which is far from meeting the needs of users. Whether it is processing technology, energy saving and environmental protection, especially the extremely low material utilization rate, it seriously lags behind the development needs of the times. With the gradual popularization of CNC technology and the vigorous development of the digital economy, the requirements for processing machinery are getting higher and higher. The CNC and intelligentization of processing machinery are the development needs of the times. After years of scientific research and unremitting practice, a new generation of multifunctional CNC rod-shaped material rough milling machine has been developed on the basis of the existing rough milling machine, which completely solves the various shortcomings and deficiencies of the existing rough milling machine, making the material processing process more scientific, labor-saving and environmentally friendly.

[0003] 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

[0004] The present invention aims to solve the above-mentioned shortcomings of the prior art and provide a multifunctional CNC rough milling machine, which can greatly improve production efficiency, make full use of materials, and realize various cutting schemes safely, conveniently and quickly.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the multifunctional CNC rough milling machine includes:

[0006] The rough cutting mechanism comprises two stations, wherein one station is equipped with a milling cutter and a power source for driving the milling cutter, and is used for initially cutting the two sides of the rod-shaped material, and the other station is equipped with a freely liftable jumping cutter and a power source for driving the jumping cutter, and is located downstream of the station equipped with the milling cutter, and the jumping cutter is used for cutting the upper and lower surfaces of the rod-shaped material; and

[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 rod-shaped material 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 that the rod-shaped material is processed by a rough cutting mechanism, a thickness cutting mechanism and a width cutting mechanism. The rough cutting mechanism first cuts the left and right sides and the upper and lower sides of the rod-shaped material to remove the rough parts and reduce the strength of the excess parts, and is combined with the thickness cutting mechanism to cut the upper and lower surfaces of the rod-shaped material and the width cutting mechanism to cut the left and right sides of the rod-shaped material, thereby reducing the wear of the cutting tools used by the thickness cutting mechanism and the width cutting mechanism and ensuring the quality of the cut products.

[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 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 are processed synchronously, the excess excess on the upper and lower surfaces of the material is 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 inward or outward 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 be offset 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] Further improvement, the milling cutter and its corresponding workstation are equipped with a second clamping member for clamping 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 second pressing member includes a second mounting plate, a second pressing member and a third pressing member, the second mounting plate installs the second pressing member on the work station, the second pressing member presses the rod-shaped material from the top and realizes self-adaptation, and the third pressing member presses the rod-shaped material from both sides and realizes self-adaptation. The rod-shaped material is pressed and limited from multiple directions, and the first pressing member and the second pressing member are adaptive, and can automatically adjust the use position according to the thickness, width and outward inclined part of the rod-shaped material, thereby ensuring a stable restraining effect.

[0019] Further improvement, the flat knife and its corresponding workstation are equipped with a first pressing member, which is used to press the rod-shaped material during the cutting process, thereby increasing the ability of the rod-shaped material to resist stress during the cutting process, reducing vibration, and improving the cutting effect.

[0020] Further improvement, the first pressing member includes a first mounting plate and at least two first pressing members, the first mounting plate installs the first pressing member on the work station, and the first pressing member presses the rod-shaped material from above and realizes self-adaptation. The rod-shaped material is pressed and limited, and the first pressing member 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.

[0021] A multifunctional CNC rough milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC rough 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 rod-shaped materials, and the feeding device is driven by one or more third motors.

[0022] 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.

[0023] The beneficial effects of the present invention are:

[0024] (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.

[0025] (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.

[0026] (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.

[0027] (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

[0028] Figure 1 It is a schematic diagram of the arrangement of the rough cutting mechanism, the thickness cutting mechanism and the width cutting mechanism along the feeding direction of the present invention;

[0029] Figure 2 It is a three-dimensional structural schematic diagram of a workstation in the width cutting mechanism of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of a workstation in the rough cutting mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of another workstation in the rough cutting mechanism of the present invention;

[0032] Figure 5 It is a three-dimensional structural schematic diagram of another workstation in the rough cutting mechanism of the present invention;

[0033] Figure 6 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;

[0034] Figure 7 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;

[0035] Figure 8 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;

[0036] Fig. 9 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;

[0037] Fig.10 It is a three-dimensional structural schematic diagram of a work station of the thickness cutting mechanism of the present invention, and a tensioning wheel mechanism is added to the power source;

[0038] Fig.11 It is another workstation 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;

[0039] Fig.12is a schematic diagram of the three-dimensional structure of the second pressing member of the present invention;

[0040] Fig.13 It is a schematic diagram of the three-dimensional structure of the first pressing member of the present invention for processing a rod-shaped material;

[0041] Fig.14 It is a schematic diagram of the three-dimensional structure of the first pressing member of the present invention for processing a rod-shaped material;

[0042] Fig.15 It is a schematic diagram of the three-dimensional structure of the first pressing member of the present invention for processing the upper and lower surfaces of the rod-shaped material;

[0043] Fig.16 It is a schematic diagram of the three-dimensional structure of the feeding device with upright installation of the present invention;

[0044] Fig.17 It is a schematic diagram of the three-dimensional structure of the feeding device with inverted mounting according to the present invention;

[0045] Fig.18 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

[0046] The present invention will be further described below in conjunction with the accompanying drawings:

[0047] Embodiment 1:

[0048] Refer to the attached Figure 1 , 2 , 18, Multifunctional CNC rough milling machine, along the feeding direction of rod-shaped materials including:

[0049] The rough cutting mechanism 1 comprises two stations, wherein one station is equipped with a milling cutter 1-1 and a power source for driving the milling cutter 1-1, and is used for initially cutting the two sides of the rod-shaped material, and the other station is equipped with a freely liftable jumping cutter 1-2 and a power source for driving the jumping cutter 1-2, and is located downstream of the station equipped with the milling cutter 1-1, and the jumping cutter 1-2 is used for cutting the upper and lower surfaces of the rod-shaped material; and

[0050] The thickness cutting mechanism 2 includes at least two workstations, each of which is equipped with at least one flat knife 2-1 and a power source for driving the flat knife 2-1, and two adjacent flat knives 2-1 are used to cut the upper and lower surfaces of the rod-shaped material respectively; and

[0051] The width cutting mechanism 3 includes at least one workstation, each of which is equipped with two vertical knives 3-1 and a power source for driving the vertical knives 3-1. The two vertical knives 3-1 are used to cut the left and right sides of the rod-shaped material.

[0052] The rod-shaped material is processed by the rough cutting mechanism 1, the thickness cutting mechanism 2, and the width cutting mechanism 3 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 rough 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 rough 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 rough milling machine processing. 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.

[0053] Among them, the jump cutter 1-2. This part is used to process the upward protruding part of the thickness on the rod-shaped material, such as bamboo. There are connected and protruding bamboo nodes between each section of the bamboo. The bamboo node is the hardest part of the bamboo and has a large area. A single complete removal will cause great damage to the tool, and the tool will often break. Therefore, the bamboo node is first roughly processed, and part of the bamboo node is milled off by a milling cutter to reduce its overall area. The removed part is the sheet-like part of the bamboo node, and the root part is not processed, thereby reducing the strength of the bamboo node. After entering the thickness cutting mechanism 2, the bamboo node part is completely removed, and the cutting wear caused to the tools of the two parts is normal wear, which increases the practical life of the tool and reduces the number of maintenance times.

[0054] Each station of the thickness cutting mechanism 2 is equipped with a first motor 2-2, a first eccentric member 2-3 and a first transmission member 2-4 which are equal in number to the flat knives 2-1. The flat knives 2-1 are installed on the first eccentric members 2-3 in a one-to-one correspondence. The first motor 2-2 drives the first eccentric member 2-3 through the first transmission member 2-4, and drives the flat knives 2-1 to rotate eccentrically. The flat knife 2-1 of the traditional thickness cutting mechanism 2 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 2-1 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 rough milling machine, the flat knife 2-1 in the thickness cutting mechanism 2 can be automatically adjusted, which is achieved through the first eccentric member 2-3. The knife shaft on which the flat knife 2-1 is installed is rotatably connected to the first eccentric member 2-3 and driven to rotate by the power source, and the first motor 2-2 drives the first transmission member 2-4 to rotate. The first transmission member 2-4 drives the first eccentric member 2-3 to rotate, and the rotation of the first eccentric member 2-3 realizes the change of the feed amount of the flat knife 2-1. 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 2-1 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 ​​together, 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 member 2-4 here is respectively the main transmission gear on the first motor 2-2 and the auxiliary transmission gear on the first eccentric member 2-3.

[0055] The thickness cutting mechanism 2 is equipped with two flat knives 2-1 at the most downstream station, and the two are used to cut the upper surface of the rod-shaped material. The upper and lower surfaces of the rod-shaped material have parts that need to be cut, and these parts have a certain thickness and connection strength. In the early processing, single flat knives 2-1 at different stations are used, and these parts are targeted with the flat knives 2-1 of one station on the upper side and the flat knives 2-1 of another station on the lower side, 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 2-1 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 processing is the value set by the worker on the CNC rough milling machine before processing.

[0056] The station of the width cutting mechanism 3 is equipped with a second motor 3-2, two second eccentrics 3-3, and a second transmission member 3-4. The two vertical knives 3-1 are respectively installed on the two second eccentrics 3-3. The second motor 3-2 drives the two second eccentrics 3-3 through the second transmission member 3-4, and drives the two vertical knives 3-1 to rotate eccentrically. The use principle of the width cutting mechanism 3 is consistent with that of the thickness cutting mechanism 2. The difference lies in the different processing surfaces. The width cutting mechanism 3 targets the two side surfaces, while the thickness cutting mechanism 2 targets the upper and lower surfaces. That is, it will not be repeated. The second motor 3-2 here is also a servo motor, which enables the vertical knife 3-1 to automatically change the feed amount according to the change of the cutting surface.

[0057] The workstation of the width cutting mechanism 3 is also equipped with two distance adjusting members 3-5. The rod-shaped material passes through the interval between the two distance adjusting members 3-5. The two distance adjusting members 3-5 are located below the vertical knife 3-1. The second motor 3-2 drives the two second eccentric members 3-4 through the second transmission member 3-4. The second eccentric member 3-4 drives the distance adjusting member 3-5 to move inward or outward. The rod-shaped materials entering the width cutting mechanism 3 are not rod-shaped materials of equal width, that is, when the rod-shaped materials pass through, not only is it necessary to ensure the smooth passage of the rod-shaped materials, but also it is necessary to achieve clamping to prevent the rod-shaped materials from being offset. Therefore, two distance adjusting members 3-5 are provided, so that the spacing of the rod-shaped materials passing through is adjustable, to prevent the rod-shaped materials from breaking due to the mismatch with the spacing. A linear bearing slider / slide rail pair is provided at the lower end of each distance adjusting member 3-5, and a cam is installed on the second eccentric member 3-3, the cam abuts on the slider of the linear bearing slider / slide rail pair, and the slider is moved by the friction force generated by the rotation of the cam and the slider, thereby driving the distance adjusting member 3-5 to move.

[0058] The distance adjusting member 3-5 is equipped with a first stopper 3-5a and a second stopper 3-5b arranged along the feeding direction and located on both sides of the vertical knife 3-1. The two first stoppers 3-5a and the two second stoppers 3-5b on the two distance adjusting members 3-5 are symmetrically arranged and form a rectangular plane. There is a spacing between the two first stoppers 3-5a and the two second stoppers 3-5b for the rod-shaped material to pass through. The two first stoppers 3-5a and the two second stoppers 3-5b 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 3-5a and the second stopper 3-5b 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 3-1. This approach further optimizes and increases the stress resistance of the rod-shaped material during processing.

[0059] One of the first stoppers 3 - 5a is fixedly arranged and serves as a positioning reference for the rod-shaped material during width processing, and the other first stopper 3 - 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 rough milling machine, the two first limit members 3-5a can be adjusted according to the residual material inclined outward on the side of the rod-shaped material. The two first limit members 3-5a are set to be one movable and the other immovable. The immovable first limit member 3-5a 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 3-5a against which this part is against moves outward or inward according to the value of the residual material. The movable first limit member 3-5a is provided with a tightening spring 6 that is pressed against its outer side surface, and the other end of the tightening spring 6 is pressed against a positioning plate 7 vertically installed on the outer side wall of the distance adjusting member 3-5, and the positioning plate 7 has an inwardly extending extension plate 8, and the extension plate 8 is provided with a slide groove 8-1, and the slide groove 8-1 is on the extension plate 8 has a front end opening 8-1a and a lower end opening 8-1b, both of which are for the first limit member 3-5a to pass through. Such a setting is not only for realizing the movement of the first limit member 3-5a, but also for preventing rotation during movement, because the movement of the first limit member 3-5a is controlled by the tightening spring 6. After being affected by the extrusion force, the tightening spring 6 itself will bend to the left and right and warp upward without restraint, so the fixed width effect cannot be achieved. Therefore, the slide groove 8-1 is used as a constraint, and the upper surface of the slide groove 8-1 is in contact with the upper surface of the first limit member 3-5a, and the extension plate 8 and the tightening spring 6 are symmetrically arranged on both sides, that is, two positioning points are provided, so that the first limit member 3-5a has good movement stability and can provide sufficient resistance to rod-shaped materials.

[0060] Embodiment 2:

[0061] Refer to the attached Figure 3 For the milling cutter 1-1 station of the rough cutting mechanism 1, it can be consistent with or inconsistent with the structure of the jumping cutter 1-2 station. Structure 1: includes a fixed plate 9, a tool shaft seat 10, a screw rod 11, and a top plate 12. The tool shaft seat 10 is located on the side of the fixed plate 9 and is movably connected to the dovetail pair 9-1 on the side of the fixed plate 9. It moves in the height direction through the screw rod 11. The milling cutter 1-1 is connected to the tool shaft seat 10 through the tool shaft rotation. The structure is simple and easy to operate. The use position of the milling cutter 1-1 in the height direction can be adjusted by the screw rod 11.

[0062] Embodiment 3:

[0063] Refer to the attached Figure 4 For the milling cutter 1-1 station of the rough cutting mechanism 1, it can be consistent with or inconsistent with the structure of the jumping cutter 1-2 station. Structure 2: Compared with structure 1, the structure for realizing the sliding of the tool shaft seat is realized by a linear slide rail / slider pair 9-1, and its movement accuracy and stability are better than the dovetail pair in structure 1.

[0064] Embodiment 4:

[0065] Refer to the attached Figure 5 , for the station of the jumping cutter 1-2 of the rough cutting mechanism 1, it can be consistent with or inconsistent with the milling cutter 1-1 station structure, structure 3: there are two fixed plates 9 and they are symmetrically arranged, which have a centrally arranged sliding channel, the tool shaft seat 10 is placed in the sliding channel and moves along the height direction, and the movement is realized by the screw rod 11, wherein the milling cutter 1-1 is connected to the two tool shaft seats 10 through the rotation of the tool shaft, and a transmission gear 13 is also provided on the tool shaft, and the screw rod 11 cooperates with the transmission gear 13. The use position of the tool shaft seat 10 is adjusted by the above arrangement, and the top plate 12 is fitted with the upper surfaces of the two fixed plates 9 through its lower surface to close the sliding channel, and a spring is provided between its lower surface and the upper surface of the tool shaft seat 10. The self-resetting and self-expansion characteristics of the spring enable the jumping cutter 1-2 to jump freely when squeezed by the rod-shaped material, thereby completing the cutting while facilitating the passage of the rod-shaped material.

[0066] Embodiment 5:

[0067] Refer to the attached Figure 6 The flat knife 2-1 of the thickness cutting mechanism 2 is located under the rod-shaped material, and has a first motor 2-2 and a first eccentric member 2-3. The first motor 2-2 is located at the upper left of the middle of the workstation, and the first eccentric member 2-3 is located at the oblique lower position of the first motor 2-2, and is tangentially meshed with the main transmission gear through the auxiliary transmission gear. This method is a flexible adjustment, and the effect is better than the structure of the rough cutting mechanism 1 adopted by the thickness cutting mechanism 2, and the wear on the machine tool is small, which can ensure the processing accuracy of the machine tool.

[0068] Embodiment 6:

[0069] Refer to the attached Figure 7 The flat knife 2-1 of the thickness cutting mechanism 2 is located on the rod-shaped material, and has a first motor 2-2 and a first eccentric member 2-3. The first motor 2-2 is located at the lower right part of the middle part of the workstation, and the first eccentric member 2-3 is located at the oblique upper position of the first motor 2-2. It is tangentially meshed with the main transmission gear through the auxiliary transmission gear. This method is a flexible adjustment, and the effect is better than the structure of the rough cutting mechanism 1 adopted by the thickness cutting mechanism 2, and the wear on the machine tool is small, which can ensure the processing accuracy of the machine tool.

[0070] Embodiment 7:

[0071] Refer to the attached Figure 8 The flat knife 2-1 of the thickness cutting mechanism 2 is located on the upper and lower sides of the rod-shaped material, and has two first motors 2-2 and two first eccentric pieces 2-3. The two first motors 2-2 and the two first eccentric pieces 2-3 constitute the diagonal of the plane of the rectangular body, one first motor 2-2 and one first eccentric piece 2-3 are on one side, and the first motor 2-2 and the first eccentric piece 2-3 on the same side are tangentially meshed through the main transmission gear and the auxiliary transmission gear, which is an oblique match, and the position is presented in the form of one side with the first motor 2-2 on the top and the first eccentric piece 2-3 on the bottom, and one side with the first motor 2-2 on the bottom and the first eccentric piece 2-3 on the top. When realizing the synchronous processing of the upper and lower sides of the rod-shaped material, the flat knife can adjust the synchronous feed amount. This method is a flexible adjustment, and the effect is better than the structure of the rough cutting mechanism 1 adopted by the thickness cutting mechanism 2, and the wear on the machine tool is small, which can ensure the processing accuracy of the machine tool.

[0072] Embodiment 8:

[0073] Refer to the attached Fig. 9 The vertical knife 3-1 of the width cutting mechanism is located on the left and right sides of the rod-shaped material, and has a second motor 3-2 and two second eccentrics 3-3. The two second eccentrics 3-3 are symmetrically arranged and meshed with each other through a sub-transmission gear. The second motor 3-2 meshes with one of the sub-transmission gears through the main transmission gear. By driving one second eccentric 3-3, the other second eccentric 3-3 is synchronously driven to achieve synchronous processing of the two sides of the rod-shaped material.

[0074] Embodiment 9:

[0075] Refer to the attached Fig.10 , 11, a tensioner mechanism 5 is provided between the flat knife 2-1 and its power source. The tensioner mechanism 5 includes a swing arm 5-1 and a tensioner 5-2 rotatably connected to the swing arm 5-1. 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 5. The tensioner 5-2 is swung by the swing arm 5-1. 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.

[0076] Embodiment 10:

[0077] Refer to the attached Fig.12 The milling cutter 1-1 and its corresponding workstation are equipped with a second pressing member 4 for pressing the rod-shaped material during the cutting process. Pressing the rod-shaped material reduces the stress generated by the cutting process, improves the processing stability, and thus achieves a good processing effect.

[0078] The second pressing member 4 includes a second mounting plate 4-1, a second pressing member 4-2 and a third pressing member 4-3. The second mounting plate 4-1 installs the pressing member 4 on the workstation. The second pressing member 4-2 presses the rod-shaped material from above and realizes self-adaptation. The third pressing member 4-3 presses the rod-shaped material from both sides and realizes self-adaptation. The second pressing member 4-2 and the third pressing member 4-3 are two different structures, and the parts in contact with the rod-shaped material are also different. The second pressing member 4-2 adopts an L-shaped top plate, and the part in contact with the rod-shaped material on the top plate is an arc transition. The third pressing member 4-2 adopts a pressing wheel. The two not only play a restraining role, but also have flexible contact and will not damage their corresponding contact surfaces. At the same time, the use position can be automatically adjusted according to the thickness, width and outward inclined part of the rod-shaped material. The second pressing member 4-2 is connected to the first fixed shaft 4-2a by rotation, and automatically adjusted by the self-recovering member 4-2b. The self-restoring part 4-2b is a spring. When there is no force, the top plate does not move. When there is force, the spring 4-2b is squeezed, and the top plate is lifted upward through the fixed shaft 4-2a. The pressure wheel is rotatably connected to the second fixed shaft 4-3a through a connecting plate. The rotation of the second fixed shaft 4-3a drives the connecting plate to rotate outward to achieve adjustment. There are two pressure wheels, each of which is against one side and automatically adjusted through the self-restoring part 4-2b. The self-restoring part 4-2b is a spring. In order to achieve synchronous rotation, a ratchet mechanism 4-3b is added to the two second fixed shafts 4-3a, which can also increase the stability of use.

[0079] Embodiment 11:

[0080] Refer to the attached Fig.13 , Structure 1: The flat knife 2-1 and the workstation to which it belongs are equipped with a first pressing member 14, which is used to press the rod-shaped material during the cutting process. The first pressing member 14 includes a first mounting plate 14-1 and at least two first pressing members 14-2. The first mounting plate 14-1 installs the first pressing member 14 on the workstation, and the first pressing member 14-2 presses the rod-shaped material from above and realizes self-adaptation; for processing the bottom of the rod-shaped material, two first pressing members 14-2 are used, both of which are pressed on the top of the rod-shaped material and are equidistant from the flat knife 2-1. The first pressing member 14-2 includes an adjustable pressing arm 14-2a and a buffer 14-2b. The adjustable pressing arm 14-2a adapts to the thickness of the rod-shaped material and swings upward or downward following the surface thickness thereof. Under the action of the self-resetting spring of the buffer 14-2b, the pressing arm 14-2a is always kept pressed down, which has a good pressing effect on the rod-shaped material.

[0081] Embodiment 12:

[0082] Refer to the attached Fig.14 , Structure 2: For processing rod-shaped materials, it is the same as Structure 1.

[0083] Embodiment 13:

[0084] Refer to the attached Fig.15 , Structure 3: For the simultaneous processing of the upper and lower surfaces of the rod-shaped material, different from structures 1 and 2, three first pressing pieces 14-2 are used. Compared with structures 1 and 2, one more first pressing piece 14-2 is provided. Considering that the flat knives 2-1 at the workstations for simultaneously processing 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 for the stress caused to the rod-shaped material, so one more first pressing piece 14-2 is added to reduce the stress caused by the simultaneous processing of the two flat knives 2-1.

[0085] Embodiment 14:

[0086] Refer to the attached Figure 16-18 A multifunctional CNC rough milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC rough milling machine. The feeding device includes a group of upper feeding wheels and lower feeding wheels for clamping the upper and lower surfaces of rod-shaped materials, and the feeding device is driven by one or more third motors.

[0087] The lower feeding wheel is a positioning reference, which is fixedly mounted on a straight rod, and 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, which is fixedly mounted on a straight rod, and the lower feeding wheel can adaptively float, and 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.

[0088] 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.

[0089] 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 rough milling machine, characterized in that: The feeding directions along the rod-shaped material include: A rough cutting mechanism (1) comprises two workstations, wherein one of the workstations is equipped with a milling cutter (1-1) and a power source for driving the milling cutter (1-1) and is used for initially cutting both sides of a rod-shaped material, and the other workstation is equipped with a freely liftable jumping cutter (1-2) and a power source for driving the jumping cutter (1-2), and is located downstream of the workstation equipped with the milling cutter (1-1), and the jumping cutter (1-2) is used for cutting the upper and lower surfaces of the rod-shaped material; and A thickness cutting mechanism (2) comprises at least two workstations, each of which is equipped with at least one flat knife (2-1) and a power source for driving the flat knife (2-1), and two adjacent flat knives (2-1) are used to cut the upper and lower surfaces of the rod-shaped material respectively; and The width cutting mechanism (3) comprises at least one workstation, each workstation being equipped with two vertical knives (3-1) and a power source for driving the vertical knives (3-1), the two vertical knives (3-1) being used for cutting the left and right sides of the rod-shaped material; Each station of the thickness cutting mechanism (2) is equipped with a first motor (2-2), a first eccentric member (2-3) having the same number as the flat knife (2-1), and a first transmission member (2-4); the flat knives (2-1) are mounted on the first eccentric members (2-3) in a one-to-one correspondence; the first motor (2-2) drives the first eccentric member (2-3) through the first transmission member (2-4), and drives the flat knife (2-1) to rotate eccentrically; The thickness cutting mechanism (2) is equipped with two flat knives (2-1) at the most downstream station, and the two flat knives are used to cut the upper and lower surfaces of the rod-shaped material respectively; The workstation of the width cutting mechanism (3) is equipped with a second motor (3-2), two second eccentric members (3-3), and a second transmission member (3-4); the two vertical knives (3-1) are respectively mounted on the two second eccentric members (3-3); the second motor (3-2) drives the two second eccentric members (3-3) through the second transmission member (3-4), and drives the two vertical knives (3-1) to rotate eccentrically; The working station of the width cutting mechanism (3) is also equipped with two distance adjusting members (3-5), and the rod-shaped material passes through the interval between the two distance adjusting members (3-5). The two distance adjusting members (3-5) are located below the vertical knife (3-1). The second motor (3-2) drives the two second eccentric members (3-3) through the second transmission member (3-4), and the second eccentric members (3-3) drive the distance adjusting members (3-5) to move inward or outward.

2. The multifunctional CNC rough milling machine according to claim 1, characterized in that: The distance adjusting member (3-5) is equipped with a first limit member (3-5a) and a second limit member (3-5b) which are arranged along the feeding direction and located on both sides of the vertical knife (3-1); the two first limit members (3-5a) on the two distance adjusting members (3-5) are symmetrically arranged, and the two second limit members (3-5b) are symmetrically arranged to form a rectangular plane; there is a spacing between the two first limit members (3-5a) and between the two second limit members (3-5b) for the rod-shaped material to pass through.

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

4. The multifunctional CNC rough milling machine according to claim 1, characterized in that: A tensioning wheel mechanism (5) is provided between the flat blade (2-1) and the power source to which it belongs.

5. The multifunctional CNC rough milling machine according to claim 1, characterized in that: The milling cutter (1-1) and the workstation to which it belongs are equipped with a second pressing member (4) for pressing the rod-shaped material during the cutting process.

6. The multifunctional CNC rough milling machine according to claim 5, characterized in that: The second pressing member (4) comprises a second mounting plate (4-1), a second pressing member (4-2) and a third pressing member (4-3); the second mounting plate (4-1) mounts the second pressing member (4) on a work station; the second pressing member (4-2) presses the rod-shaped material from above and realizes self-adaptation; the third pressing member (4-3) presses the rod-shaped material from both sides and realizes self-adaptation.

7. The multifunctional CNC rough milling machine according to claim 1, characterized in that: The flat knife (2-1) and the workstation to which it belongs are equipped with a first pressing member (14) for pressing the rod-shaped material during the cutting process.

8. The multifunctional CNC rough milling machine according to claim 7, characterized in that: The first pressing member (14) comprises a first mounting plate (14-1) and at least two first pressing members (14-2); the first mounting plate (14-1) mounts the first pressing member (14) on a work station; the first pressing members (14-2) press the rod-shaped material from above and achieve self-adaptation.

9. The multifunctional CNC rough milling machine according to any one of claims 1 to 8, characterized in that: The multifunctional CNC rough milling machine also includes multiple feeding devices, each of which is located between adjacent workstations of all workstations of the multifunctional CNC rough milling machine. The feeding device includes a group of upper feeding wheels and lower feeding wheels for clamping the upper and lower surfaces of rod-shaped materials, and the feeding device is driven by one or more third motors.

10. The multifunctional CNC rough milling machine according to claim 9, 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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