Special laser cutting machine for container door frame

Abstract

The invention belongs to the technical field of metal processing, and discloses a special laser cutting machine for a container door frame, which comprises a rotating seat, the curved surface of the rotating seat is movably sleeved with a shell, a plurality of cooling fins are equidistantly and fixedly mounted on the circumference of the outer curved surface of the shell, a guide groove is formed in the inner curved surface of the shell, and a plurality of first mounting grooves are equidistantly formed in the circumference of the upper surface of the rotating seat; the middle of each first mounting groove is fixedly sleeved with a plurality of first condensing lenses, and the shell, the cooling fins and the first condensing lenses are all made of heat conduction materials with the heat conduction coefficient not lower than 300 W / m.K. First condensing lenses with different focal lengths are used for alternately condensing light rays generated by a laser above the first condensing lenses, so that the light rays are finally condensed on the central axis of a second mounting sleeve below a polarized lens to form a plurality of focused high-temperature light spots which alternately move up and down at a high speed, and the plurality of high-temperature light spots form a high-temperature cutting line; therefore, the problem that the cutting surface is uneven due to the fact that an existing laser cutting device is uneven in cutting temperature gathering is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal processing, and specifically relates to a special laser cutting machine for container door frames. Background Art

[0002] Laser cutting is a technology that uses a high-power density laser beam to locally heat, melt or vaporize materials, thereby achieving precise cutting. It is widely used in many fields such as metal processing, automotive industry, aerospace, and medical equipment.

[0003] However, the existing laser cutting devices face many challenges when processing thick and high-temperature-resistant materials, mainly reflected in cutting efficiency and cutting quality. The traditional method usually sets the concentrated high-temperature light spot at the middle position of the thickness of the plate. Although this method can improve the cutting depth to a certain extent, due to the slow heat conduction process from the middle to the upper and lower surfaces, the heat accumulation on the upper and lower surfaces of the plate during cutting is slow, resulting in low cutting efficiency. In addition, to solve the problem of uneven heat transfer, a common practice is to increase the power consumption of the laser to increase the output energy, but this often leads to uneven heating of the middle part and the upper and lower surfaces of the plate, thereby causing a large deformation of the cutting surface of the plate and ultimately resulting in a decline in the quality and precision of the product. Summary of the Invention

[0004] The purpose of the present invention is to provide a special laser cutting machine for container door frames to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A special laser cutting machine for container door frames includes a rotating base, the curved surface of the rotating base is movably sleeved with a housing, the outer curved surface of the housing is fixedly installed with a plurality of heat sinks at equal intervals in the circumferential direction, a guiding groove is provided on the inner curved surface of the housing, a plurality of first mounting grooves are provided on the upper surface of the rotating base at equal intervals in the circumferential direction, a plurality of first condenser lenses are fixedly sleeved in the middle of the plurality of first mounting grooves, the focal lengths of the plurality of first condenser lenses increase at equal intervals along the clockwise direction, an installation shell is slidably arranged on the upper surface of the rotating base, the installation shell is fixedly sleeved with the upper part of the inner curved surface of the housing, a plurality of mounting holes are symmetrically provided on the upper surface of the installation shell, a plurality of lasers are fixedly sleeved in the middle of the plurality of mounting holes, a reflective coating is provided on the inner side surface of the installation shell, a driving mechanism is provided in the middle between the rotating base and the installation shell, a main shaft mechanism is provided in the middle of the driving mechanism, a plurality of focus adjustment mechanisms are provided between the inner curved surface of the housing and the main shaft mechanism, and a lens mechanism is fixedly sleeved at the bottom of the housing.

[0006] Preferably, the driving mechanism includes a protective housing fixedly installed in the middle of the upper surface of the mounting housing. The upper part of the inner curved surface of the protective housing is fixedly sleeved with a driving seat. The middle of the mounting housing is movably sleeved with a driving shaft. The bottom end of the driving shaft is fixedly connected to the middle of the upper surface of the rotating seat. The middle of the upper surface of the mounting housing is fixedly installed with a first driving member. The driving shaft is fixedly sleeved in the middle of the output shaft of the first driving member. The upper surface of the driving seat is fixedly installed with a second driving member. The output end of the second driving member is fixedly installed with a connecting shaft. The connecting shaft is movably sleeved with the driving seat. The connecting shaft is slidably sleeved with the rotating seat and the driving shaft. A clearance fit is adopted between the connecting shaft and the rotating seat and the driving shaft.

[0007] Preferably, the main shaft mechanism includes a first threaded rod fixedly installed at the bottom end of the connecting shaft. The bottom end of the connecting shaft is fixedly installed with a second threaded rod. The bottom end of the second threaded rod is fixedly installed with a third threaded rod. The bottom end of the third threaded rod is fixedly installed with a fourth threaded rod.

[0008] Preferably, the focusing mechanism includes a first mounting sleeve. The middle of the first mounting sleeve is fixedly sleeved with a second condenser lens. One side of the first mounting sleeve close to the main shaft mechanism is fixedly installed with a threaded sleeve. The threaded sleeve is threadedly connected to the main shaft mechanism. One side of the first mounting sleeve far from the main shaft mechanism is fixedly installed with a slider. The slider is slidably sleeved with its adjacent guide groove.

[0009] Preferably, the lens mechanism includes a second mounting sleeve fixedly sleeved at the bottom of the housing. The middle of the second mounting sleeve is fixedly installed with a partition sleeve. A plurality of second mounting grooves are symmetrically formed on the upper surface of the partition sleeve. Polarizing lenses are fixedly installed in the middle of the plurality of second mounting grooves.

[0010] Preferably, the housing, the heat sink and the rotating seat are made of a heat-conducting material with a thermal conductivity of not less than 300 W / m·K.

[0011] Preferably, the thread directions of the first threaded rod and the fourth threaded rod are opposite, the pitches of the first threaded rod and the fourth threaded rod are the same, the thread directions of the second threaded rod and the third threaded rod are opposite, the pitches of the second threaded rod and the third threaded rod are the same, and the pitch of the first threaded rod is twice the pitch of the second threaded rod.

[0012] Preferably, the uppermost focusing mechanism is threadedly connected to the first threaded rod, the lowermost focusing mechanism is threadedly connected to the fourth threaded rod, and the two middle focusing mechanisms are threadedly connected to the second threaded rod and the third threaded rod from top to bottom respectively.

[0013] Preferably, when the main shaft mechanism rotates forward, the first threaded rod and the fourth threaded rod drive the upper and lower focusing mechanisms to move towards each other respectively, the second threaded rod and the third threaded rod drive the two middle focusing mechanisms threaded thereto to move towards each other respectively, and the moving speed of the upper and lower focusing mechanisms is twice that of the two middle focusing mechanisms. Similarly, when the main shaft mechanism rotates in the reverse direction, the multiple focusing mechanisms move away from each other.

[0014] Preferably, the second mounting sleeve and the separating sleeve are made of a heat-conducting material with a heat-conductivity coefficient of not less than 300 W / m·K.

[0015] The beneficial effects disclosed by the present invention are as follows: 1. By providing multiple lasers, multiple first condenser lenses with different focal lengths, multiple focusing mechanisms with the same focal length, and multiple polarizing lenses with the same focal length, the present invention enables the lasers to generate multiple equally spaced high-temperature spots on the central axis of the second mounting sleeve below the polarizing lens. Then, the driving mechanism is started, and the driving mechanism drives the turntable to rotate at a high speed. The turntable drives the multiple first condenser lenses to rotate at a high speed. At this time, since the focal lengths of the multiple first condenser lenses increase equally along the clockwise direction, the first condenser lenses with different focal lengths alternately focus the light generated by the lasers above them, so that the finally focused multiple high-temperature spots move up and down alternately at a high speed on the central axis of the second mounting sleeve below the polarizing lens, forming a high-temperature cutting line with multiple high-temperature spots, thereby realizing the focusing of the light generated by multiple lasers and the cutting of heat-resistant materials. This overcomes the problems of the existing laser cutting device when cutting thick plates. When the high-temperature spot after focusing is set at the middle position of the thickness of the plate, the cutting heat accumulation on the upper and lower surfaces of the plate is slow, the cutting efficiency is low, or by increasing the power consumption of the laser, the heat distribution on the upper and lower parts of the plate is uneven, resulting in a large deformation of the cutting surface of the plate.

[0016] 2. By starting the driving mechanism forward, the driving mechanism drives the main shaft mechanism to rotate. The main shaft mechanism drives the uppermost and lowermost focusing mechanisms threaded thereto to move towards each other. At the same time, the main shaft mechanism drives the two middle focusing mechanisms threaded thereto to move towards each other, thereby shortening the distance between the multiple focusing mechanisms, reducing the length of the high-temperature cutting line moving on the central axis of the second mounting sleeve below the polarizing lens, increasing the heat accumulated per unit time, and realizing the efficient cutting of heat-resistant plates with a small thickness. Similarly, by starting the driving mechanism in the reverse direction, the length of the high-temperature cutting line moving on the central axis of the second mounting sleeve below the polarizing lens is increased, realizing the efficient cutting of plates with a large thickness and a low melting point. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present disclosure. Obviously, the accompanying drawings in the following description are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0018] Figure 1 Schematic diagram of the overall appearance structure of the present invention; Figure 2 Schematic diagram of the housing structure of the present invention; Figure 3 Schematic diagram of the mounting shell structure of the present invention; Figure 4 Schematic diagram of the driving mechanism structure of the present invention; Figure 5 Schematic diagram of the focusing mechanism structure of the present invention; Figure 6 Schematic diagram of the lens mechanism structure of the present invention.

[0019] In the figure: 1, turntable; 101, first mounting groove; 2, housing; 201, heat sink; 202, guide groove; 3, first condenser lens; 4, mounting shell; 401, mounting hole; 5, laser; 6, driving mechanism; 601, protective shell; 602, driving seat; 603, driving shaft; 604, first driving member; 605, second driving member; 606, connecting shaft; 7, main shaft mechanism; 701, first threaded rod; 702, second threaded rod; 703, third threaded rod; 704, fourth threaded rod; 8, focusing mechanism; 801, first mounting sleeve; 802, second condenser lens; 803, threaded sleeve; 804, slider; 9, lens mechanism; 901, second mounting sleeve; 902, spacer sleeve; 903, second mounting groove; 904, polarizing lens. Detailed implementation manners

[0020] The following will further elaborate on the present disclosure in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0021] To make the drawings concise, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. Additionally, to make the drawings concise and easy to understand, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0022] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0023] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0024] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this disclosure.

[0025] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0026] Such as Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a special laser cutting machine for a container door frame, including a rotating base 1. The curved surface of the rotating base 1 is movably sleeved with a housing 2. The outer curved surface of the housing 2 is fixedly installed with a plurality of heat sinks 201 at equal intervals in the circumferential direction. A guiding groove 202 is opened on the inner curved surface of the housing 2. A plurality of first mounting grooves 101 are opened on the upper surface of the rotating base 1 at equal intervals in the circumferential direction. A plurality of first condenser lenses 3 are fixedly sleeved in the middle of the plurality of first mounting grooves 101. The housing 2, the heat sinks 201 and the rotating base 1 are all made of a heat-conducting material with a thermal conductivity coefficient not less than 300 W / m·K, and the housing 2, the heat sinks 201 and the rotating base 1 are all made of copper alloy, so as to improve the heat-conducting and heat-dissipating performance of the housing 2, the heat sinks 201 and the rotating base 1, and realize rapid heat dissipation of the first condenser lens 3, the second condenser lens 802 and the polarizing lens 904 whose temperatures rise due to contact with the laser, reduce the temperatures of the first condenser lens 3, the second condenser lens 802 and the polarizing lens 904, and improve the service life of the first condenser lens 3, the second condenser lens 802 and the polarizing lens 904. The focal lengths of the plurality of first condenser lenses 3 increase at equal intervals in the clockwise direction. An installation shell 4 is slidably arranged on the upper surface of the rotating base 1. The installation shell 4 is fixedly sleeved with the upper part of the inner curved surface of the housing 2. A plurality of installation holes 401 are symmetrically opened on the upper surface of the installation shell 4. A plurality of lasers 5 are fixedly sleeved in the middle of the plurality of installation holes 401. A reflective coating is arranged on the inner side surface of the installation shell 4, so as to reflect the light generated by the laser 5 and irradiated to the side surface of the installation shell 4, and make it concentrated on the upper surface of the first condenser lens 3, and improve the utilization efficiency of the laser 5. A driving mechanism 6 is arranged in the middle between the rotating base 1 and the installation shell 4. A main shaft mechanism 7 is arranged in the middle of the driving mechanism 6. A plurality of focus adjustment mechanisms 8 are arranged between the inner curved surface of the housing 2 and the main shaft mechanism 7. A lens mechanism 9 is fixedly sleeved at the bottom of the housing 2.

[0027] As Figures 1 to 4 shown, the driving mechanism 6 includes a protective shell 601. The protective shell 601 is fixedly installed in the middle of the upper surface of the installation shell 4. The upper part of the inner curved surface of the protective shell 601 is fixedly sleeved with a driving seat 602. A driving shaft 603 is movably sleeved in the middle of the installation shell 4. The bottom end of the driving shaft 603 is fixedly connected with the middle of the upper surface of the rotating base 1. A first driving member 604 is fixedly installed in the middle of the upper surface of the installation shell 4. The driving shaft 603 is fixedly sleeved in the middle of the output shaft of the first driving member 604. A second driving member 605 is fixedly installed on the upper surface of the driving seat 602. The output end of the second driving member 605 is fixedly installed with a connecting shaft 606. The connecting shaft 606 is movably sleeved with the driving seat 602. The connecting shaft 606 is slidably sleeved with the rotating base 1 and the driving shaft 603. A clearance fit is adopted between the connecting shaft 606 and the rotating base 1 and the driving shaft 603, so as to reduce the frictional resistance between the connecting shaft 606 and the rotating base 1 and the driving shaft 603, and reduce the load when the second driving member 605 drives the first driving member 604 to rotate.

[0028] As Figure 2 andFigure 5 As shown, the main shaft mechanism 7 includes a first threaded rod 701, the first threaded rod 701 is fixedly installed at the bottom end of the connecting shaft 606, a second threaded rod 702 is fixedly installed at the bottom end of the connecting shaft 606, a third threaded rod 703 is fixedly installed at the bottom end of the second threaded rod 702, a fourth threaded rod 704 is fixedly installed at the bottom end of the third threaded rod 703. The thread directions of the first threaded rod 701 and the fourth threaded rod 704 are opposite, and the pitches of the first threaded rod 701 and the fourth threaded rod 704 are the same. The thread directions of the second threaded rod 702 and the third threaded rod 703 are opposite, so that a plurality of focus adjustment mechanisms 8 can approach or move away from each other synchronously. The pitches of the second threaded rod 702 and the third threaded rod 703 are the same, and the pitch of the first threaded rod 701 is twice the pitch of the second threaded rod 702. Thus, when the plurality of focus adjustment mechanisms 8 move away from or approach each other, the distances between multiple adjacent two focus adjustment mechanisms 8 remain the same. Furthermore, the distances between multiple high-temperature light spots on the central axis of the second mounting sleeve 901 below the subsequent polarizing lens 904 always remain the same, so that the temperature of the high-temperature cutting line remains uniform and the cutting accuracy is improved.

[0029] As Figure 2 and Figure 5As shown in the figure, the focus adjustment mechanism 8 includes a first mounting sleeve 801. A second condenser lens 802 is fixedly sleeved in the middle of the first mounting sleeve 801. A threaded sleeve 803 is fixedly installed on one side of the first mounting sleeve 801 close to the main shaft mechanism 7. The threaded sleeve 803 is threadedly connected to the main shaft mechanism 7. A slider 804 is fixedly installed on the side of the first mounting sleeve 801 away from the main shaft mechanism 7. The slider 804 is slidably sleeved in its adjacent guide groove 202. Among them, the uppermost focus adjustment mechanism 8 is threadedly connected to the first threaded rod 701, and the lowermost focus adjustment mechanism 8 is threadedly connected to the fourth threaded rod 704. The two middle focus adjustment mechanisms 8 are respectively threadedly connected to the second threaded rod 702 and the third threaded rod 703 from top to bottom. In addition, when the main shaft mechanism 7 rotates forward, the first threaded rod 701 and the fourth threaded rod 704 respectively drive the upper and lower focus adjustment mechanisms 8 to move towards each other, and the second threaded rod 702 and the third threaded rod 703 respectively drive the two middle focus adjustment mechanisms 8 threadedly connected to them to move towards each other. And the moving speed of the upper and lower focus adjustment mechanisms 8 is twice that of the two middle focus adjustment mechanisms 8. Similarly, when the main shaft mechanism 7 rotates in the reverse direction, the multiple focus adjustment mechanisms 8 move away from each other, so as to realize changing the position of the high-temperature light spot on the central axis of the second mounting sleeve 901 below the polarizing lens 904 after the laser is refracted by the second condenser lens 802 by increasing the distance of the up-and-down movement of the focus adjustment mechanism 8. Furthermore, by shortening or increasing the distance between the multiple focus adjustment mechanisms 8, the distance between the multiple high-temperature light spots on the central axis of the second mounting sleeve 901 below the polarizing lens 904 is reduced or increased, and then the length of the high-temperature cutting line on the central axis of the second mounting sleeve 901 below the polarizing lens 904 is reduced or increased, thereby increasing or decreasing the temperature of the high-temperature cutting line.

[0030] As Figure 2 and Figure 5 shown in the figure, the lens mechanism 9 includes a second mounting sleeve 901. The second mounting sleeve 901 is fixedly sleeved at the bottom of the housing 2. A partition sleeve 902 is fixedly installed in the middle of the second mounting sleeve 901. A plurality of second mounting grooves 903 are symmetrically opened on the upper surface of the partition sleeve 902. A polarizing lens 904 is fixedly installed in the middle of the plurality of second mounting grooves 903. The second mounting sleeve 901 and the partition sleeve 902 are made of a heat-conducting material with a thermal conductivity not less than 300 W / m·K. The second mounting sleeve 901 and the partition sleeve 902 are made of copper alloy, so as to improve the heat dissipation efficiency of the second mounting sleeve 901 and the partition sleeve 902 and reduce the temperature of the polarizing lens 904. The heat resistance coefficients of the materials used for the first condenser lens 3, the second condenser lens 802 and the second mounting groove 903 increase in turn, so as to realize that different materials of the first condenser lens 3, the second condenser lens 802 and the second mounting groove 903 are used according to the size and temperature of the light spots irradiated on the first condenser lens 3, the second condenser lens 802 and the second mounting groove 903, which can reduce the manufacturing cost and the later replacement cost.

[0031] Working principle: When the present invention is in use, the laser 5 is started. After the multiple laser beams generated by the laser 5 are focused by the first condenser lens 3 below it, they are directed towards the focusing mechanism 8 below it. The focusing mechanism 8 refocuses the light passing through its upper and lower sides and refracts it towards the main shaft mechanism 7. The refracted light is directed towards the polarizing lens 904. The polarizing lens 904 refracts the refracted light again in a direction away from the central axis of the second mounting sleeve 901, so that the multiple refracted light beams form a focused high-temperature spot on the central axis of the second mounting sleeve 901 below the polarizing lens 904, and reduces the angle between the light beam and the central axis of the second mounting sleeve 901, reducing the cutting width. At this time, multiple lasers 5, multiple first condenser lenses 3 with different focal lengths, multiple focusing mechanisms 8 with the same focal length, and multiple polarizing lenses 904 with the same focal length are provided, so that multiple equidistant high-temperature spots are formed on the central axis of the second mounting sleeve 901 below the second mounting sleeve 901. Then, the first driving member 604 is started. The first driving member 604 drives the driving shaft 603 to rotate. The driving shaft 603 drives the turntable 1 to rotate at a high speed. The turntable 1 drives the multiple first condenser lenses 3 to rotate at a high speed. At this time, since the focal lengths of the multiple first condenser lenses 3 increase equidistantly in the clockwise direction, the first condenser lenses 3 with different focal lengths alternately focus the light beams generated by the laser 5 above them, so that the finally focused multiple high-temperature spots on the central axis of the second mounting sleeve 901 below the polarizing lens 904 move up and down alternately at a high speed, and the multiple high-temperature spots form a high-temperature cutting line, thereby realizing the focusing of the light beams generated by the multiple lasers 5 and simultaneously realizing the cutting of heat-resistant materials. It overcomes the problem that when the existing laser cutting device cuts high-thickness plates, the focused high-temperature spot is set at the middle position of the thickness of the plate, resulting in slow heat accumulation on the upper and lower surfaces of the plate during cutting, leading to low cutting efficiency, or by increasing the power consumption of the laser 5, resulting in uneven heating of the middle part and the upper and lower parts of the plate, leading to a large deformation of the cutting surface of the plate; In addition, when the present invention is in use, the second driving member 605 is started in the forward direction. The output end of the second driving member 605 drives the connecting shaft 606 to rotate. The connecting shaft 606 drives the first threaded rod 701 to rotate. The first threaded rod 701 drives the second threaded rod 702 to rotate. The second threaded rod 702 drives the third threaded rod 703 to rotate. The third threaded rod 703 drives the fourth threaded rod 704 to rotate. The first threaded rod 701 and the fourth threaded rod 704 respectively drive the uppermost focusing mechanism 8 and the lowermost focusing mechanism 8 to move towards each other through the sliders 804 threadedly connected thereto. The second threaded rod 702 and the third threaded rod 703 respectively drive the two middle focusing mechanisms 8 to move towards each other through the sliders 804 threadedly connected thereto, so as to shorten the distance between the plurality of second condenser lenses 802. Furthermore, the length of the high-temperature cutting line moving on the central axis of the second mounting sleeve 901 below the polarizing lens 904 is reduced, and the heat accumulated per unit time is increased, realizing efficient cutting of a plate with a small high-temperature resistant thickness. Similarly, when the second driving member 605 is started in the reverse direction, the length of the high-temperature cutting line moving on the central axis of the second mounting sleeve 901 below the polarizing lens 904 is increased, realizing efficient cutting of a plate with a large low-melting-point thickness.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered by the scope of the claims of the present disclosure.

Claims

1. A laser cutting machine for container door frames, comprising a swivel base (1), characterized in that: The curved surface of the rotating seat (1) is movably sleeved with a housing (2); a plurality of heat sinks (201) are fixedly mounted at equal intervals on the outer curved surface of the housing (2); a guide groove (202) is provided on the inner curved surface of the housing (2); a plurality of first mounting grooves (101) are equidistantly provided on the upper surface of the rotating seat (1); a plurality of first focusing lenses (3) are fixedly sleeved in the middle of the plurality of first mounting grooves (101); the focal lengths of the plurality of first focusing lenses (3) increase at equal intervals in a clockwise direction; a mounting shell (4) is slidably mounted on the upper surface of the rotating seat (1); the mounting shell (4) The mounting shell (4) is fixedly sleeved with the upper part of the inner curved surface of the outer shell (2); a plurality of mounting holes (401) are symmetrically provided on the upper surface of the mounting shell (4); a laser (5) is fixedly sleeved in the middle of each of the plurality of mounting holes (401); a reflective coating is provided on the inner side surface of the mounting shell (4); a driving mechanism (6) is provided in the middle between the rotating seat (1) and the mounting shell (4); a spindle mechanism (7) is provided in the middle of the driving mechanism (6); a plurality of focus adjustment mechanisms (8) are provided between the inner curved surface of the outer shell (2) and the spindle mechanism (7); and a lens mechanism (9) is fixedly sleeved at the bottom of the outer shell (2).

2. The container door frame laser cutting machine according to claim 1, characterized in that: The driving mechanism (6) comprises a protective shell (601), wherein the protective shell (601) is fixedly mounted on the middle part of the upper surface of the mounting shell (4), a driving seat (602) is fixedly sleeved on the upper part of the inner curved surface of the protective shell (601), a driving shaft (603) is movably sleeved on the middle part of the mounting shell (4), the bottom end of the driving shaft (603) is fixedly connected to the middle part of the upper surface of the rotating seat (1), a first driving member (604) is fixedly mounted on the middle part of the upper surface of the mounting shell (4), and the driving shaft (60 3) fixedly sleeved on the middle part of the output shaft of the first driving member (604), a second driving member (605) is fixedly mounted on the upper surface of the driving seat (602), a connecting shaft (606) is fixedly mounted on the output end of the second driving member (605), the connecting shaft (606) is movably sleeved with the driving seat (602), the connecting shaft (606) is slidably sleeved with the rotating seat (1) and the driving shaft (603), and a clearance fit is adopted between the connecting shaft (606), the rotating seat (1) and the driving shaft (603).

3. The container door frame laser cutting machine according to claim 2, characterized in that: The spindle mechanism (7) comprises a first threaded rod (701), the first threaded rod (701) being fixedly mounted on the bottom end of a connecting shaft (606), a second threaded rod (702) being fixedly mounted on the bottom end of the connecting shaft (606), a third threaded rod (703) being fixedly mounted on the bottom end of the second threaded rod (702), and a fourth threaded rod (704) being fixedly mounted on the bottom end of the third threaded rod (703).

4. The container door frame laser cutting machine according to claim 3, characterized in that: The focus adjustment mechanism (8) comprises a first mounting sleeve (801), a second focusing lens (802) being fixedly sleeved in the middle of the first mounting sleeve (801), a threaded sleeve (803) being fixedly mounted on a side of the first mounting sleeve (801) close to the spindle mechanism (7), the threaded sleeve (803) being threadedly connected to the spindle mechanism (7), and a sliding block (804) being fixedly mounted on a side of the first mounting sleeve (801) away from the spindle mechanism (7), the sliding block (804) being slidably sleeved in a guide groove (202) adjacent to the sliding block.

5. The container door frame laser cutting machine according to claim 1, characterized in that: The lens mechanism (9) comprises a second mounting sleeve (901), the second mounting sleeve (901) being fixedly sleeved on the bottom of the housing (2), a partition sleeve (902) being fixedly mounted in the middle of the second mounting sleeve (901), a plurality of second mounting grooves (903) being symmetrically formed on the upper surface of the partition sleeve (902), and a polarizing lens (904) being fixedly mounted in the middle of the plurality of second mounting grooves (903).

6. The container door frame laser cutting machine according to claim 1, characterized in that: The housing (2), the heat sink (201) and the rotating seat (1) are made of a thermally conductive material having a thermal conductivity of not less than 300 W / m·K.

7. The container door frame laser cutting machine according to claim 3, characterized in that: The thread directions of the first threaded rod (701) and the fourth threaded rod (704) are opposite, the thread pitches of the first threaded rod (701) and the fourth threaded rod (704) are the same, the thread directions of the second threaded rod (702) and the third threaded rod (703) are opposite, the thread pitches of the second threaded rod (702) and the third threaded rod (703) are the same, and the thread pitch of the first threaded rod (701) is twice the thread pitch of the second threaded rod (702).

8. The container door frame laser cutting machine according to claim 4, characterized in that: The focus adjustment mechanism (8) at the top is threadedly connected to the first threaded rod (701), the focus adjustment mechanism (8) at the bottom is threadedly connected to the fourth threaded rod (704), and the two focus adjustment mechanisms (8) in the middle are threadedly connected to the second threaded rod (702) and the third threaded rod (703) from top to bottom, respectively.

9. The container door frame laser cutting machine according to claim 4, characterized in that: When the spindle mechanism (7) rotates in the forward direction, the first threaded rod (701) and the fourth threaded rod (704) respectively drive the upper and lower focus adjustment mechanisms (8) to move towards each other, and the second threaded rod (702) and the third threaded rod (703) respectively drive the two middle focus adjustment mechanisms (8) threadedly connected thereto to move towards each other, and the moving speed of the upper and lower focus adjustment mechanisms (8) is twice the moving speed of the two middle focus adjustment mechanisms (8). Similarly, when the spindle mechanism (7) rotates in the reverse direction, the plurality of focus adjustment mechanisms (8) move away from each other.

10. The container door frame laser cutting machine according to claim 5, characterized in that: The second mounting sleeve (901) and the separation sleeve (902) are made of a thermally conductive material having a thermal conductivity of not less than 300 W / m·K.

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