Special-shaped Z-axis sleeve suitable for three-dimensional laser cutting system and mounting structure of special-shaped Z-axis sleeve

Abstract

The utility model discloses a special-shaped Z-axis sleeve suitable for a three-dimensional laser cutting system and an installation structure of the special-shaped Z-axis sleeve, and the special-shaped Z-axis sleeve comprises a flat barrel part of a barrel-shaped structure and a cylinder part which is coaxially and integrally formed at the bottom of the flat barrel part. According to the special-shaped Z-axis sleeve, the flat cylinder part can be designed to be ultrathin on the premise that the wiring requirement is met, so that the width of the Y-axis sliding seat matched with the flat cylinder part is very small, the size and the weight of the Y-axis sliding seat are reduced, the requirement of light-weight design is met, and in addition, due to the fact that the special-shaped Z-axis sleeve is matched with the Y-axis sliding seat through the flat cylinder part to form the special-shaped shaft hole, the service life of the special-shaped Z-axis sleeve is prolonged. Not only can the problem of wrong assembly be avoided during assembly, but also the assembly tolerance can be greatly reduced, and the assembly and debugging period is shortened; and meanwhile, the widths of the flat cylinder part and the Y-axis sliding seat are very small, so that the hollow width of the cross beam matched with the flat cylinder part and the Y-axis sliding seat can be greatly reduced, the structural strength of the cross beam is effectively improved, the problem of bending deformation is not easy to occur, and the maintenance frequency and the use cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to an irregular Z-axis sleeve and its mounting structure suitable for a three-dimensional laser cutting system. Background Technology

[0002] 3D laser cutting machines are high-end equipment that integrates optics, mechanics, electronics, and pneumatics. They are considered the crown jewel of laser processing equipment and are mainly used for cutting holes and trimming edges on complex stamped parts. They are widely used in aerospace, new energy vehicles and other fields.

[0003] Please refer to the Chinese utility model patent with publication number CN219310399U. Existing 3D laser cutting machines, whether using a single laser cutting head or a dual laser cutting head, all use an offset structure to install the Y-axis slide on one side of the crossbeam. This not only makes the whole machine prone to tilting due to the offset of the center of gravity, thus requiring frequent correction and adjustment, but also easily causes the crossbeam to twist and deform over a long period of time, affecting the static and dynamic characteristics of the cutting machine.

[0004] Therefore, the applicant hopes to design a centrally mounted straddle-type crossbeam module, using a hollow crossbeam structure to accommodate the centrally mounted straddle-type installation method of the Y-axis slide, in order to solve the aforementioned problems. However, please refer to Chinese design patent publication number CN307505573S; existing Z-axis sleeves, in order to accommodate the installation structure of the laser cutting head, generally adopt a cylindrical structure. If this is directly applied to the centrally mounted straddle-type crossbeam module, it will inevitably lead to:

[0005] 1. The excessive width of the hollow structure of the beam results in poor structural strength and makes it prone to bending deformation.

[0006] 2. In order to match the cylindrical structure of the Z-axis sleeve and its own double slide mounting structure, the Y-axis slide is not only large in size and heavy in weight, which does not meet the requirements of lightweight design, but also has high requirements for error prevention during assembly because the Y-axis slide and the Z-axis sleeve use a circular shaft hole fit, and it is also easy to have large assembly tolerances.

[0007] Solving these problems is now a top priority. Utility Model Content

[0008] In view of this, the present invention provides an irregular Z-axis sleeve and its mounting structure suitable for a three-dimensional laser cutting system.

[0009] The technical solution is as follows:

[0010] The first aspect of this application relates to a non-circular Z-axis sleeve suitable for a three-dimensional laser cutting system, comprising a Z-axis sleeve body, the Z-axis sleeve body comprising a flat cylindrical portion with a cylindrical structure and a cylindrical portion integrally formed coaxially at the bottom of the flat cylindrical portion, the flat cylindrical portion having lifting guide planes extending vertically parallel to each other on both sides in the width direction, the cylindrical portion being a cylindrical structure communicating with the flat cylindrical portion, the distance between the two lifting guide planes being less than the diameter of the cylindrical portion, and the cylindrical portion protruding radially from the two lifting guide planes, each of the lifting guide planes being provided with a lifting control component mounting structure extending vertically.

[0011] The above-mentioned irregular Z-axis sleeve, suitable for 3D laser cutting systems, allows for an ultra-thin design of the flat cylindrical section while meeting wiring requirements. This means the distance between the two lifting guide planes can be designed to be very small, resulting in a very small width for the mating Y-axis slide. This reduces the size and weight of the Y-axis slide, meeting lightweight design requirements. Furthermore, because the irregular Z-axis sleeve forms an irregular shaft hole fit with the Y-axis slide through the flat cylindrical section, there is no relative rotation between them, preventing misassembly during assembly and significantly reducing assembly tolerances and shortening the assembly and debugging cycle. Simultaneously, the very small width of both the flat cylindrical section and the Y-axis slide significantly reduces the hollow width of the mating crossbeam, effectively improving the structural strength of the crossbeam, reducing bending deformation, and lowering maintenance frequency and operating costs.

[0012] In some embodiments, two opposing wiring clearance grooves are recessed on the inner wall of the flat cylindrical portion, and both wiring clearance grooves are arranged on the inner side of the corresponding lifting guide plane in a vertical direction.

[0013] In some embodiments, multiple annular reinforcing ribs arranged side by side along the axial direction and axial reinforcing ribs evenly distributed along the circumference of each annular reinforcing rib are formed on the outer peripheral surface of the cylindrical portion, and each annular reinforcing rib and each axial reinforcing rib together form a grid-like structure.

[0014] In some embodiments, the cross-section of the flat cylindrical portion is rectangular, and both lifting guide planes protrude horizontally to both sides of the cylindrical portion.

[0015] The second aspect of this application relates to an installation structure for the aforementioned irregular Z-axis sleeve suitable for a three-dimensional laser cutting system. At least one first linear guide rail extending vertically is installed on each of the two lifting guide planes. A first rack extending vertically is installed on one of the lifting guide planes. The first rack and each first linear guide rail are respectively installed on a corresponding lifting control component installation structure. A Y-axis slide is fitted over the flat cylindrical portion. The Y-axis slide is fixedly connected to the sliders of each first linear guide rail. A first drive motor is installed on the Y-axis slide. A first drive gear meshing with the first rack is synchronously mounted on the motor shaft of the first drive motor. A downwardly extending laser cutting head is installed in the cylindrical portion.

[0016] The above-mentioned mounting structure of the irregular Z-axis sleeve suitable for three-dimensional laser cutting systems not only possesses all the advantages of the irregular Z-axis sleeves used in three-dimensional laser cutting systems, but also allows the irregular Z-axis sleeve to rise and fall stably and reliably along the Y-axis slide, while the motor drives the transmission through a gear and rack, resulting in high control precision.

[0017] In some embodiments, a plurality of flat cylindrical reinforcing ribs are protruding on the lifting guide plane, some of which are vertically extending flat cylindrical reinforcing ribs that form the mounting structure of the lifting control assembly. The first rack and each first linear guide rail are respectively mounted on the corresponding vertically extending flat cylindrical reinforcing ribs.

[0018] In some embodiments, the top of the flat cylindrical portion protrudes circumferentially to form a ring-shaped reinforcing flange, and the upper part of each vertically extending reinforcing rib of the flat cylindrical portion extends to the ring-shaped reinforcing flange. The upper ends of the first rack and each first linear guide rail abut against the ring-shaped reinforcing flange. Attached Figure Description

[0019] Figure 1 A structural schematic diagram of an irregularly shaped Z-axis sleeve from one perspective;

[0020] Figure 2 A structural schematic diagram of the irregular Z-axis sleeve from another perspective;

[0021] Figure 3 This is a schematic diagram of the installation structure of the irregular Z-axis sleeve, Y-axis slide, and laser cutting head from one perspective.

[0022] Figure 4 This is a schematic diagram of the mounting structure of the irregular Z-axis sleeve, Y-axis slide, and laser cutting head from another perspective.

[0023] Figure 5 This is a schematic diagram of the Y-axis slide block;

[0024] Figure 6 This is a structural schematic diagram of the crossbeam module. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, a non-circular Z-axis sleeve suitable for a three-dimensional laser cutting system mainly includes a Z-axis sleeve body 1, which comprises an integrally formed flat cylindrical portion 1a and a cylindrical portion 1b, exhibiting high structural strength. The flat cylindrical portion 1a is a flat cylindrical structure extending vertically, while the cylindrical portion 1b is a cylindrical structure also extending vertically, and is located at the lower end of the flat cylindrical portion 1a.

[0027] In this embodiment, the flat cylindrical portion 1a and the cylindrical portion 1b are coaxially arranged. Most importantly, the two sides of the flat cylindrical portion 1a in the width direction are provided with lifting guide planes 1a1 that extend vertically and are parallel to each other. The distance between the two lifting guide planes 1a1 is smaller than the diameter of the cylindrical portion 1b. Meanwhile, the cylindrical portion 1b protrudes radially from the two lifting guide planes 1a1. In addition, each lifting guide plane 1a1 is provided with a lifting control component mounting structure that extends vertically.

[0028] Please see Figure 6 The flat cylindrical part 1a is used to mate with the Y-axis slide 2, meaning that the flat cylindrical part 1a can move up and down along the Y-axis slide 2. The cylindrical part 1b is used to mount the laser cutting head 5. Therefore, the flat cylindrical part 1a can achieve an ultra-thin design while meeting the wiring requirements, that is, the distance between the two lifting guide planes 1a1 can be designed to be very small. Therefore, the width of the Y-axis slide 2 that it mates with can also be very small, thereby reducing the size and weight of the Y-axis slide 2 and meeting the requirements of lightweight design. Furthermore, since the irregular Z-axis sleeve forms an irregular shaft hole mate with the Y-axis slide 2 through the flat cylindrical part 1a, there will be no relative rotation between the two, thus preventing misassembly during assembly and significantly reducing assembly tolerances and shortening the assembly and debugging cycle. At the same time, since the widths of the flat cylindrical part 1a and the Y-axis slide 2 are very small, the width of the strip hollow part 6a of the crossbeam 6 that it mates with can be significantly reduced, thereby effectively improving the structural strength of the crossbeam 6, making it less prone to bending deformation, and reducing maintenance frequency and usage costs.

[0029] Two opposing wiring clearance grooves 1a2 are recessed on the inner wall of the flat cylindrical section 1a. Both wiring clearance grooves 1a2 extend vertically and are located on the inner side of the corresponding lifting guide plane 1a1. Therefore, while ensuring its own structural strength, the flat cylindrical section 1a facilitates wiring through the two wiring clearance grooves 1a2 in its middle section via the expanded diameter profile.

[0030] Furthermore, the cross-section of the flat cylindrical portion 1a is approximately rectangular. Specifically, after the two lifting guide planes 1a1 protrude horizontally to both sides, they are connected by outwardly arched arc-shaped thin plates 1a5. The two opposing arc-shaped thin plates 1a5 and the two opposing lifting guide planes 1a1 together form the flat cylindrical portion 1a. The arc-shaped thin plates 1a5, due to their arc-shaped structure, are not only easier to cast, but also have higher structural strength compared to conventional flat plate structures. In this embodiment, since both lifting guide planes 1a1 protrude horizontally to both sides from the cylindrical portion 1b, the internal space of the flat cylindrical portion 1a can be effectively increased to allow more wire harnesses to pass through without increasing the width of the flat cylindrical portion 1a.

[0031] The irregular Z-axis sleeve in this embodiment is integrally formed by casting, resulting in high structural strength.

[0032] Example 2:

[0033] Please see Figures 1-6 An installation structure for a non-circular Z-axis sleeve suitable for a three-dimensional laser cutting system is provided. At least one first linear guide rail 1c extending in the vertical direction is installed on each of the two lifting guide planes 1a1. In this embodiment, two parallel first linear guide rails 1c are installed on each lifting guide plane 1a1. A Y-axis slide block 2 is fitted on the outer side of the flat cylindrical part 1a. The Y-axis slide block 2 is fixedly connected to the slider of each first linear guide rail 1c, ensuring the stability and reliability of the Y-axis slide block 2 and the flat cylindrical part 1a, so that the non-circular Z-axis sleeve can be raised and lowered stably and reliably along the Y-axis slide block 2.

[0034] One of the lifting guide planes 1a1 is equipped with a first rack 1d extending in the vertical direction, and a first drive motor 3 is installed on the Y-axis slide 2. The motor shaft of the first drive motor 3 is synchronously fitted with a first drive gear 4 that meshes with the first rack 1d. Therefore, by driving the first drive gear 4 to rotate forward and backward, the motor shaft of the first drive motor 3 can make the irregular Z-axis sleeve rise or fall along the Y-axis slide 2, with high control precision.

[0035] Furthermore, the first drive motor 3 is preferably a servo motor, which can further improve the precision control of the lifting and lowering of the irregular Z-axis sleeve.

[0036] In this embodiment, the first rack 1d and each first linear guide rail 1c are respectively mounted on the corresponding lifting control component mounting structure. Specifically, a plurality of flat cylindrical reinforcing ribs 1a3 protrude from the lifting guide plane 1a1, improving the structural strength of the flat cylindrical portion 1a. Meanwhile, some of the flat cylindrical reinforcing ribs 1a3 extending vertically form the lifting control component mounting structure, and the first rack 1d and each first linear guide rail 1c are respectively mounted on the corresponding flat cylindrical reinforcing ribs 1c extending vertically, ensuring the installation accuracy of the first rack 1d and each first linear guide rail 1c.

[0037] Furthermore, a ring-shaped reinforcing flange 1a4 protrudes circumferentially from the top of the flat cylindrical portion 1a, thereby improving the structural strength at the entrance of the flat cylindrical portion 1a. Simultaneously, the upper parts of each vertically extending flat cylindrical portion reinforcing rib 1a3 extend to the ring-shaped reinforcing flange 1a4, further enhancing the overall structural strength of the flat cylindrical portion 1a. Moreover, the upper ends of the first rack 1d and each first linear guide rail 1c abut against the ring-shaped reinforcing flange 1a4, thereby further improving the installation accuracy of the first rack 1d and each first linear guide rail 1c.

[0038] Please see Figure 3 , Figure 4 and Figure 6 A laser cutting head 5 is installed in the cylindrical part 1b, and the laser cutting head 5 extends downward from the cylindrical part 1b. The laser cutting head 5 is a conventional laser cutting head capable of exciting a laser, and usually has one, two or more rotational degrees of freedom, which can be selected according to actual needs.

[0039] Please see Figures 1-4 On the outer peripheral surface of the cylindrical part 1b, there are multiple annular reinforcing ribs 1b1 arranged side by side along the axial direction and axial reinforcing ribs 1b2 evenly distributed along the circumference of each annular reinforcing rib 1b1. Each annular reinforcing rib 1b1 and each axial reinforcing rib 1b2 together form a grid structure, thereby effectively improving the structural strength of the cylindrical part 1b.

[0040] Please see Figure 6 After the Y-axis slide 2 is fitted onto the flat cylindrical portion 1a, the bottom of the Y-axis slide 2 extends downward into the strip-shaped hollow portion 6a of the crossbeam 6. Simultaneously, the Y-axis slide 2 has sliding mounting seats on both sides, and both sliding mounting seats are slidably engaged with the crossbeam 6 through sliding fit components, thereby achieving a centrally positioned straddle-type mounting structure. This avoids the torsion of the crossbeam 6 structure caused by traditional offset mounting structures, achieving higher structural strength and stability, improving machining accuracy, and reducing maintenance frequency. Furthermore, because the irregularly shaped Z-axis sleeve and Y-axis slide 2 in this embodiment have better running stability on the crossbeam 6, the running speed of the Y-axis slide 2 on the crossbeam 6 can be increased, thereby improving laser cutting processing efficiency.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A non-circular Z-axis sleeve suitable for a three-dimensional laser cutting system, comprising a Z-axis sleeve body, characterized in that: The Z-axis sleeve body includes a flat cylindrical part with a cylindrical structure and a cylindrical part coaxially integrally formed at the bottom of the flat cylindrical part. The two sides of the flat cylindrical part in the width direction are provided with lifting guide planes that extend vertically and are parallel to each other. The cylindrical part is a cylindrical structure that communicates with the flat cylindrical part. The distance between the two lifting guide planes is less than the diameter of the cylindrical part, and the cylindrical part protrudes radially from the two lifting guide planes. Each lifting guide plane is provided with a lifting control component mounting structure that extends vertically.

2. The irregular Z-axis sleeve suitable for a three-dimensional laser cutting system according to claim 1, characterized in that: The inner wall of the flat cylindrical part has two recessed grooves that face each other and are arranged on the inner side of the corresponding lifting guide plane. Both grooves extend vertically.

3. The irregular Z-axis sleeve suitable for a three-dimensional laser cutting system according to claim 1, characterized in that: The outer circumferential surface of the cylindrical part has multiple annular reinforcing ribs arranged side by side along the axial direction, as well as axial reinforcing ribs evenly distributed along the circumference of each annular reinforcing rib. Each annular reinforcing rib and each axial reinforcing rib together form a grid-like structure.

4. The irregular Z-axis sleeve suitable for a three-dimensional laser cutting system according to claim 1, characterized in that: After the two lifting guide planes protrude to both sides in the horizontal direction, they are connected by outwardly arched arc-shaped thin plates. The two oppositely arranged arc-shaped thin plates and the two oppositely arranged lifting guide planes together form the flat cylindrical part.

5. A mounting structure for an irregularly shaped Z-axis sleeve suitable for a three-dimensional laser cutting system, as described in any one of claims 1-4, characterized in that: At least one first linear guide rail extending vertically is installed on each of the two lifting guide planes. A first rack extending vertically is installed on one of the lifting guide planes. The first rack and each first linear guide rail are respectively installed on the corresponding lifting control component mounting structure. A Y-axis slide is fitted outside the flat cylindrical part. The Y-axis slide is fixedly connected to the slider of each first linear guide rail. A first drive motor is installed on the Y-axis slide. A first drive gear that meshes with the first rack is synchronously mounted on the motor shaft of the first drive motor. A downwardly extending laser cutting head is installed in the cylindrical part.

6. The mounting structure of the irregular Z-axis sleeve for a three-dimensional laser cutting system according to claim 5, characterized in that: The lifting guide plane has several protruding flat cylindrical reinforcing ribs, some of which extend vertically and form the mounting structure of the lifting control component. The first rack and each first linear guide rail are respectively mounted on the corresponding flat cylindrical reinforcing ribs extending vertically.

7. The mounting structure of the irregular Z-axis sleeve for a three-dimensional laser cutting system according to claim 6, characterized in that: The top of the flat cylindrical section protrudes circumferentially to form a ring-shaped reinforcing flange, and the upper part of each vertically extending reinforcing rib of the flat cylindrical section extends to the ring-shaped reinforcing flange. The upper ends of the first rack and each first linear guide rail abut against the ring-shaped reinforcing flange.

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