A gantry assembly for a numerically controlled machining apparatus and a numerically controlled machining apparatus

Abstract

The application discloses a rack assembly and a numerical control machining device comprising the same. The rack assembly comprises a rack, a machining platform component, a driving member, a transmission rod and a flexible member. The driving member is arranged on the rack. The transmission rod extends along a first direction. One end of the transmission rod is connected with the driving member, and the other end of the transmission rod is connected with the rack, so that the machining platform component is driven to move along the first direction under the driving of the driving member. The flexible member is arranged between the transmission rod and the machining platform component and / or arranged between the transmission rod and the rack. The rack assembly and the numerical control machining device can reduce the shaking of a machining head, compensate for the problem that the two ends of the transmission rod are not concentric due to assembly errors, improve the movement precision of the machining platform component, and overcome the problem of swinging of the transmission rod.

Description

Technical Field

[0001] This application relates to the field of CNC machining technology, and in particular to a frame assembly for a CNC machining equipment and the CNC machining equipment itself. Background Technology

[0002] In related technologies, CNC machining equipment such as 3D printers and laser engraving machines utilize lifting designs for the machining head and / or base plate to achieve richer machining functions. In these technologies, base plate lifting typically employs a lead screw mechanism. However, the lead screw and lead screw nut experience slight oscillation during movement, and the lead screw head and bottom are not fixed to the same part, making assembly tolerances prone to occur. This can compromise the straightness of the lead screw installation, leading to deviations that may significantly affect the smoothness of movement. Utility Model Content

[0003] The main purpose of this application is to propose a frame assembly for a CNC machining equipment and the CNC machining equipment itself, aiming to solve the problem of uneven lifting caused by the deviation between the lead screw head and the lead screw bottom.

[0004] To achieve the above objectives, this application proposes a frame assembly for a CNC machining equipment, including a frame, a machining platform component, a drive component, a transmission rod, and a flexible component. The drive component is disposed on the frame; the transmission rod extends along a first direction, with one end connected to the drive component and the other end connected to the frame, so as to drive the machining platform component to move along the first direction under the drive of the drive component; the flexible component is disposed between the transmission rod and the machining platform component, and / or between the transmission rod and the frame.

[0005] In some embodiments, there are at least three drive rods and at least three flexible elements. The at least three drive rods are connected to at least three positions of the processing platform component, and the at least three positions are not collinear. The flexible element is provided between each drive rod and the processing platform component, and / or between each drive rod and the frame.

[0006] In some implementations, there are at least three drive members, and the number of drive members is the same as the number of transmission rods, with each transmission rod connected to one drive member.

[0007] In some embodiments, the frame includes a first frame and a second frame, the second frame and the first frame being spaced apart along a first direction, a drive member being disposed on the first frame, the other end of a transmission rod being connected to the second frame, and a flexible member being disposed between the other end of the transmission rod and the second frame.

[0008] In some embodiments, the transmission rod is a lead screw, and the frame assembly also includes a lead screw nut, which is located at the position where the processing platform component connects to the transmission rod, and the lead screw nut is threadedly engaged with the lead screw.

[0009] In some embodiments, the other end of the transmission rod is provided with an adjustment part to drive the transmission rod to move through the adjustment part.

[0010] In some embodiments, the flexible element includes a silicone sleeve that is fitted onto the transmission rod.

[0011] In some embodiments, the frame assembly further includes a bearing; a silicone sleeve covers the lead screw, and the bearing is covered by the silicone sleeve; or, the bearing is covered by the lead screw, and the silicone sleeve covers the bearing.

[0012] In some embodiments, the frame assembly further includes at least three detection elements and at least three trigger elements. The at least three detection elements are disposed on the frame and are respectively close to at least three drive rods, and the at least three trigger elements are disposed on the machining platform component and are respectively close to at least three drive rods. Each trigger element can cooperate with a detection element to detect whether at least three positions on the machining platform component are at the same height.

[0013] In some embodiments, there are at least three drive rods, and the frame assembly also includes at least three detection elements and at least three trigger elements. The at least three trigger elements are disposed on the frame and are respectively close to the at least three drive rods, and the at least three detection elements are disposed on the machining platform component and are respectively close to the at least three drive rods. One trigger element can cooperate with one detection element to detect whether at least three positions on the machining platform component are at the same height.

[0014] In some embodiments, there are at least three drive rods, and the frame assembly also includes at least three sensors. The at least three sensors are disposed on the machining platform component or the frame and respectively close to the at least three drive rods, or the at least three sensors are disposed on the at least three drive rods, so as to detect whether at least three positions of the machining platform component are at the same height based on the at least three sensors.

[0015] In some embodiments, the machining platform component includes a first support and a machining platform, the machining platform being detachably connected to the first support, and at least three drive rods connecting to at least three positions on the first support.

[0016] In some embodiments, the processing platform component further includes a second support connected to the first support and located below the processing platform. The second support has a connecting portion for connecting functional accessories.

[0017] This application also provides a CNC machining equipment, including a frame assembly and a machining head as described in any of the above embodiments, wherein the machining head is disposed opposite to the machining platform component.

[0018] The frame assembly and CNC machining equipment provided in this application, by incorporating flexible components between the transmission rod and the machining platform component, and / or between the transmission rod and the frame, can compensate for the misalignment problem at both ends of the transmission rod caused by assembly errors, improve the motion accuracy of the machining platform component, and overcome the problem of transmission rod oscillation. Furthermore, by using a drive component and transmission rod to drive the machining platform component to move along a first direction, compared to integrating the motion module moving along the first direction with the machining head of the CNC machining equipment, the load on the machining head drive module can be reduced, the movement speed of the machining head can be increased, and the vibration of the machining head can be reduced, thus improving machining accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a rack assembly provided in some embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the structure of some components in the rack assembly provided in some embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the structure of some components in the rack assembly provided in some embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the structure of some components in the rack assembly provided in some embodiments of this application;

[0024] Figure 5 This is a schematic diagram of the structure of some components in the rack assembly provided in some embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the machining platform component in the rack assembly provided in some embodiments of this application;

[0026] Figure 7 A schematic diagram of the structure of a CNC machining equipment provided in some embodiments of this application;

[0027] Figure 8 This is a schematic diagram of the structure of a CNC machining equipment provided in some embodiments of this application.

[0028] Explanation of icon numbers:

[0029] 100. CNC machining equipment; 10. Frame assembly; 11. Frame; 111. First frame; 112. Second frame; 12. Machining platform component; 121. First support; 122. Machining platform; 123. Second support; 1231. Connecting part; 13. Driving component; 14. Transmission rod; 141. Adjusting part; 15. Flexible component; 16. Lead screw nut; 17. Bearing; 18. Detection component; 19. Triggering component; 20. Machining head; 30. Distance detection module.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0034] Please see Figure 1 and Figure 2This application provides a frame assembly 10 for a CNC machining equipment. The frame assembly 10 includes a frame 11, a machining platform component 12, a drive member 13, a transmission rod 14, and a flexible member 15. The drive member 13 is disposed on the frame 11, and the transmission rod 14 extends along a first direction. One end of the transmission rod 14 is connected to the drive member 13, and the other end is connected to the frame 11, so as to drive the machining platform component 12 to move along the first direction under the drive of the drive member 13. The flexible member 15 is disposed between at least one transmission rod 14 and the machining platform component 12, and / or between at least one transmission rod 14 and the frame 11.

[0035] CNC machining equipment can be laser CNC machining equipment (such as laser engraving machines, laser cutting machines, or laser welding machines), knife cutting machines, 3D printers, 3D printing and laser processing combined equipment, UV printers, inkjet printers, and other CNC machining equipment.

[0036] The frame assembly 10 of this application provides a flexible member 15 between the transmission rod 14 and the processing platform component 12, and / or between the transmission rod 14 and the frame 11. The flexible member 15 can deform, thereby compensating for the problem of misalignment at both ends of the transmission rod 14 due to assembly errors, improving the motion accuracy of the processing platform component 12, and overcoming the problem of the transmission rod 14 swaying.

[0037] By setting the transmission rod 14 to drive the machining platform component 12 to move along the first direction, compared to integrating the motion module moving along the first direction with the machining head 20 of the CNC machining equipment 100, the load on the machining head 20 drive module is reduced, the movement speed of the machining head 20 can be increased, the vibration of the machining head 20 is reduced, and the machining accuracy is improved. Furthermore, compared to the machining head 20 with an integrated motion module, the machining head 20 of the CNC machining equipment 100 of this application is smaller, allowing the machining head 20 to have a larger machining area.

[0038] In some embodiments, there are at least three transmission rods 14 and at least three flexible elements 15. The at least three transmission rods 14 are connected to at least three positions on the processing platform component 12, and these at least three positions are not collinear. A flexible element 15 is provided between each transmission rod 14 and the processing platform component 12, and / or between each transmission rod 14 and the frame 11. This makes the lifting and lowering of the processing platform component 12 more stable and provides higher lifting accuracy. In other embodiments, the number of transmission rods 14 may be one or two, without limitation. When there are one or two transmission rods 14, they can be used in conjunction with an optical axis to achieve the lifting and lowering of the processing platform component 12. The optical axis can serve as a guide and limiter, ensuring lifting accuracy.

[0039] In some embodiments, the number of drive rods 14 can be three, four, five, six, or more. Figure 1 and Figure 2 In the illustrated embodiment, there are four transmission rods 14, and the four positions on the machining platform component 12 that connect to the four transmission rods 14 are the four apex regions, in order to maximize the synchronous movement of any position on the machining platform 122. Correspondingly, the number of positions on the machining platform component 12 that connect to the transmission rods 14 can be three, four, five, six, or more.

[0040] The machining platform component 12 is used to support the workpiece. The center points of at least three locations of the machining platform component 12 can be connected in sequence to form a polygon, and the center points of at least three transmission rods 14 can be connected in sequence to form a polygon, so as to improve the stability of the machining platform component 12 and make it more stable during movement along the first direction.

[0041] In some embodiments, a flexible member 15 is provided between the transmission rod 14 and the processing platform component 12. For example, the processing platform component 12 has a through hole through which the transmission rod 14 passes, and the flexible member 15 is disposed in the through hole and sleeves the transmission rod 14, so that the transmission rod 14 and the processing platform component 12 are flexibly connected in the radial direction of the transmission rod 14. This allows the processing platform component 12 to move at any position, thus compensating for the problem of misalignment between one end of the transmission rod 14 and the connection position of the transmission rod 14 to the processing platform component 12.

[0042] In some embodiments, a flexible member 15 is provided between the other end of the transmission rod 14 and the frame 11 to compensate for the misalignment of the two ends of the transmission rod 14. For example, the frame 11 has a through hole for the transmission rod 14 to pass through, and the flexible member 15 is disposed on the frame 11 and located within the through hole. As another example, the frame assembly 10 also includes a fixing member, the other end of the transmission rod 14 is connected to the fixing member, the fixing member is fixed to the frame 11, the fixing member has a through hole for the transmission rod 14 to pass through, and the flexible member 15 is disposed on the fixing member and located within the through hole.

[0043] In some embodiments, flexible members 15 are provided between the transmission rod 14 and the processing platform component 12, and between the other end of the transmission rod 14 and the frame 11. Specific configurations can be found in the two embodiments described above, and will not be repeated here.

[0044] In some embodiments, a drive member 13 may be provided, and the frame assembly 10 may further include a transmission assembly (not shown). The drive member 13 can be driven by at least three transmission rods 14 to enable the at least three transmission rods 14 to move synchronously. In one embodiment, the transmission assembly may include a driving pulley, at least three driven pulleys, and a timing belt. The driving pulley may be connected to the drive member 13, the driven pulleys may be connected to the transmission rods 14, and the timing belt connects the driving pulley and the driven pulleys. In other embodiments, the transmission assembly may also be a chain drive, gear drive, coupling drive, etc., and is not limited thereto.

[0045] In some embodiments, the number of drive members 13 may be less than the number of transmission rods 14. At least one drive member 13 is connected to two transmission rods 14 via a transmission assembly, and the remaining drive members 13 may be connected to one or two transmission rods 14. For example, there are a total of four transmission rods 14, two drive members 13, and two transmission assemblies, with one drive member 13 connected to two transmission rods 14 via a transmission assembly.

[0046] In some embodiments, there may be at least three drive members 13, the number of which is the same as the number of transmission rods 14. Each drive member 13 is connected to one transmission rod 14, and each drive member 13 drives one transmission rod 14 to move independently. This ensures that each transmission rod 14 can be adjusted individually, which is beneficial for leveling the processing platform component 12 and for dynamically adjusting the height of various positions of the processing component. In addition, it avoids the problems of synchronous belt drive lag, decreased accuracy, high noise, and easy breakage.

[0047] The driving component 13 can be an electric motor, a pneumatic motor, etc.

[0048] The transmission rod 14 can be a lead screw, rack and pinion, optical shaft, etc.

[0049] In some embodiments, the transmission rod 14 is a lead screw, and the frame assembly 10 further includes a lead screw nut 16. The lead screw nut 16 is disposed at the position where the machining platform component 12 connects to the transmission rod 14. The lead screw nut 16 is threadedly engaged with the lead screw and connected to the machining platform component 12. The lead screw nut 16 and the lead screw cooperate to form a lead screw nut pair. When the lead screw rotates, the lead screw nut 16 can move along the lead screw, thereby driving the machining platform component 12 to move in a first direction. When the flexible member 15 is disposed between the transmission rod 14 and the machining platform component 12, the flexible member 15 can be disposed between the lead screw nut 16 and the machining platform component 12, for example, the flexible member 15 can be sleeved on the lead screw nut 16. When there are at least three transmission rods 14, there are also at least three lead screw nuts 16, with one lead screw nut 16 cooperating with one lead screw. In some embodiments, the flexible member 15 can also adapt to the problem of the lead screw and lead screw nut 16 oscillating during movement.

[0050] The drive component 13 and the transmission rod 14 can be connected by means of coupling, gear, synchronous belt, etc., or the drive component 13 can be directly connected to the transmission rod 14.

[0051] In related technologies, when using a lead screw drive system, an optical shaft is often required for guidance, while the lead screw is responsible for transmitting power. Generally, the optical shaft needs to be paired with a linear bearing for guidance. Optical shafts require high machining precision, and linear bearings are also relatively precise, making both expensive. Furthermore, the optical shaft and lead screw need to be spaced a certain distance apart, and the linear bearing also occupies some space, resulting in a space-consuming structure that cannot efficiently utilize available space. Additionally, the installation of the optical shaft requires high straightness, making assembly on the production line difficult. The frame assembly 10 of this application, through the flexible component 15, can compensate for the misalignment at both ends of the transmission rod 14 caused by assembly errors, giving the transmission rod 14 better guiding properties. Consequently, even without the optical shaft guidance, the machining platform component 12 moves with high precision in the first direction. Therefore, the frame assembly 10 of this application can eliminate the need for the optical shaft and linear bearing, simplifying the overall structural design. This not only reduces material costs but also simplifies assembly and improves production efficiency. Simultaneously, the optimized structure is more compact, improving the overall space utilization of the machine and facilitating a larger processing area.

[0052] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the other end of the transmission rod 14 (i.e., the end opposite to the drive member 13) is provided with an adjustment part 141 to drive the transmission rod 14 to move. By operating the adjustment part 141 to drive the transmission rod 14 to move the corresponding position of the processing platform component 12 along the first direction, the height of the corresponding position of the processing platform component 12 can be adjusted to level the processing platform component 12. Also, when the two ends of the transmission rod 14 are not concentrically aligned and the drive member 13 cannot drive the transmission rod 14, the transmission rod 14 can be rotated by operating the adjustment part 141 to release the lock between the transmission rod 14 and the drive member 13.

[0053] In some embodiments, the adjustment part 141 may be a structure that can cooperate with a screwdriver or other hand tool, such as a slotted slot, a cross slot, an internal hexagonal slot, or a Torx slot, so that the adjustment part 141 can be operated by a screwdriver or other hand tool, thereby driving the transmission rod 14 to rotate.

[0054] In some embodiments, the adjustment part 141 may also be an adjustment hole extending radially along the transmission rod 14, which can be manually driven to rotate the transmission rod 14 by inserting some tools into the adjustment hole.

[0055] In some embodiments, the frame 11 includes a first frame 111 and a second frame 112, the second frame 112 and the first frame 111 being spaced apart along a first direction. A drive member 13 is disposed on the first frame 111, the other end of a transmission rod 14 is connected to the second frame 112, and a flexible member 15 is disposed between the other end of the transmission rod 14 and the second frame 112. The first frame 111 can serve as a support carrier, and the processing platform component 12 can move along the first direction in the area between the first frame 111 and the second frame 112. The drive member 13 can be disposed on the side of the first frame 111 opposite to the second frame 112, or on the side away from the second frame 112. The second frame 112 can be connected to the first frame 111 via a vertical plate or a column.

[0056] The flexible component 15 can be an object made of flexible materials such as rubber or silicone, for example, a silicone sleeve, a rubber sleeve, or foam. Figure 3 and Figure 4 As shown, in some embodiments, the flexible member 15 is a silicone sleeve, which covers the transmission rod 14. Since the silicone sleeve can deform, it can compensate for the problem of misalignment at both ends of the transmission rod 14.

[0057] In some embodiments, the frame assembly 10 further includes a bearing 17, the other end of which is connected to the bearing 17 to enable rotation of the transmission rod 14. In some embodiments, such as... Figure 4 As shown, a silicone sleeve covers the bearing 17, and the bearing 17 is fitted onto the transmission rod 14. In some embodiments, such as Figure 3 As shown, a silicone sleeve is fitted over the transmission rod 14, and a silicone sleeve is fitted over the bearing 17.

[0058] like Figure 5 As shown, in some embodiments, the frame assembly 10 further includes at least three detection elements 18 and at least three trigger elements 19. The number of transmission rods 14, detection elements 18 and trigger elements 19 are the same. One detection element 18 cooperates with one trigger element 19 and is close to one transmission rod 14 respectively to achieve leveling of the processing platform component 12.

[0059] In some embodiments, at least three detectors 18 are disposed on the frame 11 and respectively near at least three transmission rods 14, and at least three triggers 19 are disposed on the processing platform component 12 and near at least three positions. Each trigger 19 can cooperate with one detector 18 to detect whether at least three positions on the processing platform component 12 are at the same height. A detector 18 is disposed near each transmission rod 14 on the frame 11, and a trigger 19 is disposed near each transmission rod 14 on the processing platform component 12. This allows for determination of whether the positions on the processing platform component 12 are at the same height based on the detectors 18 and triggers 19 near each transmission rod 14. If they are not at the same height, the corresponding transmission rod 14 can be driven to move, so that all positions on the processing platform component 12 are at the same height.

[0060] In some embodiments, at least three detection elements 18 are disposed on the processing platform component 12 and are respectively close to at least three transmission rods 14, and at least three trigger elements 19 are disposed on the frame 11 and are close to at least three positions. Each trigger element 19 can cooperate with a detection element 18 to detect whether at least three positions on the processing platform component 12 are at the same height. A trigger element 19 is disposed near each transmission rod 14 on the frame 11, and a detection element 18 is disposed near each transmission rod 14 on the processing platform component 12, so as to determine whether the positions on the processing platform component 12 are at the same height based on the detection elements 18 and trigger elements 19 near each transmission rod 14. When they are not at the same height, the transmission rod 14 at the corresponding position can be driven to move so that all positions on the processing platform component 12 are at the same height.

[0061] In some embodiments, the detection element 18 may include a photoelectric sensor, an acoustic sensor, a Hall effect sensor, or a pressure sensor, etc. The trigger element 19 may include a baffle, a magnetic element, a baffle plate, a pin, etc. The detection element 18 and the trigger element 19 can be any devices that can cooperate with each other, which will not be described in detail here.

[0062] In some embodiments, the number of detection elements 18 may be twice the number of transmission rods 14. Half of the detection elements 18 may be disposed on the processing platform component 12 or the frame 11 and close to the first position and the corresponding transmission rod 14. The other half of the detection elements 18 may be disposed on the processing platform component 12 or the frame 11 and close to the second position and the corresponding transmission rod 14. The number of trigger elements 19 may be the same as the number of transmission rods 14 or the same as the number of detection elements 18. If the number of trigger elements 19 is the same as the number of transmission rods 14, each trigger element 19 may cooperate with the detection element 18 corresponding to the first position and the detection element 18 corresponding to the second position, respectively, to realize the levelness detection of the processing platform component 12 at the first position and the second position (i.e., to detect whether the various positions where the processing platform component 12 is connected to the transmission rod 14 are at the same height). If the number of trigger elements 19 is the same as the number of detection elements 18, one trigger element 19 may cooperate with one detection element 18 to realize the levelness detection of the processing platform component 12 at the first position and the second position. The first position and the second position can be the two extreme positions of the movement stroke of the processing platform component 12, respectively. In this way, it is possible to detect whether the various positions where the processing platform component 12 and the transmission rod 14 are connected are at the same height at both extreme positions of the movement stroke of the processing platform component 12.

[0063] For example, there are four transmission rods 14, eight detection elements 18, and eight trigger elements 19. The four first detection elements 18 can be set on the first frame 111 and close to the four transmission rods 14. The four second detection elements 18 can be set on the second frame 112 or on the frame connecting the first frame 111 and the second frame 112 and close to the four transmission rods 14. The four first trigger elements 19 are set on the processing platform component 12 and extend along the direction of the first frame 111. The four second trigger elements 19 are set on the processing platform component 12 and extend along the direction of the second frame 112. When the processing platform component 12 moves to the first position, the four first trigger elements 19 can cooperate with the four first detection elements 18 to detect whether the four positions of the processing platform component 12 connected to the four transmission rods 14 are at the same height. When the processing platform component 12 moves to the second position, the four second trigger elements 19 can cooperate with the four second detection elements 18 to detect whether the four positions of the processing platform component 12 connected to the four transmission rods 14 are at the same height.

[0064] like Figure 5As shown, in some embodiments, the detection element 18 is a photoelectric sensor (such as a photoelectric switch). The photoelectric sensor is mounted on the frame 11 and close to the drive element 13. The trigger element 19 includes a baffle, which can be set on the side of the processing platform component 12 in the horizontal direction. There are four detection elements 18 and four trigger elements 19, all close to the four transmission rods 14. When the detection element 18 senses that the four positions of the processing platform component 12 connected to the four transmission rods 14 have descended to the same position (for example, all four trigger elements 19 trigger the detection element 18), the drive element 13 stops driving the transmission rods 14 to move. In this way, the processing platform component 12 can be in a relatively horizontal position when it returns to the bottom. In this way, when the processing platform component 12 is driven to rise, the driving distance of the four drive elements 13 is kept consistent, which can ensure the horizontality of the processing platform component 12 after it rises.

[0065] In some embodiments, the frame assembly 10 further includes at least three sensors, which are respectively disposed near at least three drive rods 14. The at least three sensors can be used to detect whether the various positions where the processing platform component 12 is connected to the at least three drive rods 14 are at the same height. The sensors can be force sensors, displacement sensors, bubble level sensors, distance sensors, gyroscope sensors, etc., and the appropriate sensor type can be selected according to the placement location, etc.

[0066] In some embodiments, at least three sensors are provided on the processing platform component 12 or the frame 11 to detect distances or forces at various locations on the processing platform component 12, thereby determining whether the various locations where the processing platform component 12 is connected to the at least three drive rods 14 are at the same height.

[0067] In some embodiments, at least three sensors are mounted on at least three transmission rods 14 to detect the force exerted on each transmission rod 14 during transmission or the displacement of the processing platform component 12, thereby determining whether the various positions where the processing platform component 12 is connected to the at least three transmission rods 14 are at the same height. This can be achieved using optical encoder sensors, magnetostrictive displacement sensors, etc.

[0068] like Figure 6As shown, in some embodiments, the machining platform component 12 includes a first support 121 and a machining platform 122. The machining platform 122 is disposed on the first support 121, and at least three transmission rods 14 are connected to at least three positions of the first support 121. The machining platform 122 is used to support the workpiece, which can be a honeycomb panel, flat plate, blade plate, metal tray, etc., and is not listed here. Different types of machining platforms 122 can be used depending on the different CNC machining equipment 100, and different machining platforms 122 can also be used depending on the object being processed. The first support 121 supports the machining platform 122 and drives the machining platform 122 to move. When the transmission rod 14 is a lead screw, the first support 121 can be connected to the lead screw via a lead screw nut 16.

[0069] In some embodiments, the machining platform 122 is detachably connected to the first bracket 121 to facilitate the disassembly, assembly, and maintenance of the machining platform 122, and also to facilitate the adaptation of different machining platforms 122 according to the machining mode and / or machining material, thereby enriching the machining capabilities of the CNC machining equipment 100. The detachable connection may include snap-fit ​​connection, magnetic connection, fastener connection, etc., and no specific limitation is made here.

[0070] In some embodiments, the machining platform component 12 further includes a second bracket 123, which is connected to the first bracket 121 and located below the machining platform 122. The second bracket 123 has a connecting portion 1231 for connecting functional accessories. The connecting portion 1231 may include, but is not limited to, connecting holes, snaps, slots, protrusions, etc. The second bracket 123 also supports the functional accessories so that they can be stably placed on the frame assembly 10. By connecting functional accessories, the application scenarios of the CNC machining equipment 100 are broadened. Compared to placing the functional accessories on the machining platform 122, this embodiment places them on the second bracket 123, reducing the space occupied in the first direction and allowing for more space in the first direction, which is beneficial for machining operations and increasing the machining range. When it is necessary to install the functional accessories, the machining platform 122 can be removed from the first bracket 121, and the functional accessories can be installed on the second bracket 123. In some embodiments, there can be multiple connecting portions 1231 to accommodate different functional accessories.

[0071] Functional attachments may include rotary attachments, feeding attachments, or screen printing frames, etc., which will not be listed here, so that the CNC machining equipment 100 can realize a wider range of processing scenarios. For example, with rotary attachments, cylindrical objects can be processed; with feeding attachments, long objects can be processed; and with screen printing frames, patterns can be engraved and printed.

[0072] In other embodiments, the processing platform component 12 may also include only the processing platform 122, which is connected to at least three drive rods 14, and there is no limitation on this.

[0073] In other embodiments, the processing platform 122 may be provided with a connection part 1231 for connecting with other functional accessories, such as a buckle, a connection hole, or a slide.

[0074] Please see Figure 7 and Figure 8 This application also provides a CNC machining equipment 100, which may include a machining head 20 and a frame assembly 10 as described in any of the above embodiments. The machining head 20 is disposed opposite to the machining platform component 12. The machining head 20 can perform machining on the workpiece on the machining platform component 12, or the machining head 20 can machine the workpiece on the machining platform component 12, which can be determined according to the type of CNC machining equipment 100.

[0075] The CNC machining equipment 100 can be a laser CNC machining equipment 100 (such as a laser engraving machine, laser cutting machine, or laser welding machine), a cutting machine, a 3D printer, a 3D printing and laser processing combined machine, a UV printer, an inkjet printer, or other CNC machining equipment 100. Correspondingly, the processing head 20 can be a laser processing head 20, a 3D printing head, a cutting head, an inkjet printing head, etc.

[0076] In some embodiments, the CNC machining equipment 100 may also include other functional devices, such as power supply devices, and / or heat dissipation devices, and / or motion components, and / or protective covers, etc.

[0077] In some embodiments, the processing head 20 may be connected to a motion component and moved in a direction parallel to the processing platform component 12 (such as the X direction and / or the Y direction) under the drive of the motion component to perform processing.

[0078] In some embodiments, the processing head 20 is equipped with a distance detection module 30. The distance detection module 30 can perform contact or non-contact measurement of the height of various positions on the processing platform component 12 to detect the levelness of the processing platform component 12. When it is not level or the levelness does not meet the requirements, the corresponding transmission rod 14 can be controlled to rise or fall based on the detection results. By measuring the Z-axis coordinates of several points on the processing platform component 12 through XY motion, and then individually controlling each drive component 13 to drive the corresponding transmission rod 14 to rise or fall by a distance, the levelness of the processing platform component 12 can be adjusted, ensuring high leveling accuracy and significantly improving processing accuracy.

[0079] In some embodiments, the processing head 20 may also move relative to the frame assembly 10 in a first direction.

[0080] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A frame assembly for a CNC machining equipment, characterized in that, include: frame; Machining platform components; The drive unit is located on the frame; A transmission rod extends along a first direction, one end of which is connected to the driving member and the other end is connected to the frame, so as to drive the processing platform component to move along the first direction under the drive of the driving member; A flexible component is disposed between the transmission rod and the processing platform component, and / or between the transmission rod and the frame.

2. The rack assembly according to claim 1, characterized in that, There are at least three transmission rods and at least three flexible components. The at least three transmission rods are connected to at least three positions of the processing platform component. The at least three positions are not collinear. The flexible component is provided between each transmission rod and the processing platform component, and / or between each transmission rod and the frame.

3. The rack assembly according to claim 2, characterized in that, There are at least three driving components, and the number of driving components is the same as the number of transmission rods, with each transmission rod connected to one driving component.

4. The rack assembly according to claim 1, characterized in that, The frame includes a first frame and a second frame, the second frame and the first frame are spaced apart along the first direction, the driving member is disposed on the first frame, the other end of the transmission rod is connected to the second frame, and the flexible member is disposed between the other end of the transmission rod and the second frame.

5. The rack assembly according to claim 1, characterized in that, The transmission rod is a lead screw, and the frame assembly also includes a lead screw nut. The lead screw nut is located at the position where the processing platform component connects to the transmission rod, and the lead screw nut is threadedly engaged with the lead screw.

6. The rack assembly according to claim 1, characterized in that, The other end of the transmission rod is provided with an adjustment part, which drives the transmission rod to move.

7. The rack assembly according to claim 1, characterized in that, The flexible component includes a silicone sleeve, which is fitted onto the transmission rod.

8. The rack assembly according to claim 7, characterized in that, The frame assembly also includes bearings; The silicone sleeve is fitted over the transmission rod, and the bearing is fitted over the silicone sleeve; or... The bearing is fitted onto the transmission rod, and the silicone sleeve is fitted onto the bearing.

9. The rack assembly according to any one of claims 1 to 8, characterized in that, The transmission rods are at least three, and the frame assembly also includes at least three detection elements and at least three trigger elements; The at least three detection elements are disposed on the frame and are respectively close to the at least three transmission rods, and the at least three trigger elements are disposed on the processing platform component and are respectively close to the at least three transmission rods. Each trigger element can cooperate with one detection element to detect whether at least three positions on the processing platform component are at the same height. or, The at least three triggers are disposed on the frame and are respectively close to the at least three transmission rods, and the at least three detection elements are disposed on the processing platform component and are respectively close to the at least three transmission rods. One of the triggers can cooperate with one of the detection elements to detect whether at least three positions on the processing platform component are at the same height.

10. The rack assembly according to any one of claims 1 to 8, characterized in that, The transmission rods are at least three, and the frame assembly also includes at least three sensors. The at least three sensors are disposed on the processing platform component or the frame and respectively close to the at least three transmission rods, or the at least three sensors are disposed on the at least three transmission rods, so as to detect whether at least three positions of the processing platform component are at the same height based on the at least three sensors.

11. The rack assembly according to any one of claims 1 to 8, characterized in that, The transmission rods are at least three, and the processing platform component includes a first bracket and a processing platform. The processing platform is detachably connected to the first bracket, and the at least three transmission rods are connected to at least three positions on the first bracket.

12. The rack assembly according to claim 11, characterized in that, The processing platform component also includes a second bracket, which is connected to the first bracket and located below the processing platform. The second bracket is provided with a connecting part for connecting functional accessories.

13. A CNC machining equipment, characterized in that, include: The rack assembly according to any one of claims 1 to 12; A processing head, which is disposed opposite to the processing platform component.

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