Connection device and laser engraving device

Abstract

This application provides a connection device and a laser engraving device. The connection device includes a connection frame and an adsorption assembly. The connection frame has a connection end for rotatably connecting a device to be connected, allowing the connection frame to rotate relative to the device about a first direction. The adsorption assembly is slidably connected to the connection frame along a second direction, allowing it to move closer to or further away from the connection end along the second direction. The adsorption assembly is used to adsorb the surface of the device to be connected. The second direction is a direction away from the connection end, and the first direction is perpendicular to the second direction. The adsorption assembly can be activated by a first power supply signal and deactivated by a second power supply signal.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a connection device and a laser marking device. Background Technology

[0002] Laser engraving is widely used in nameplate engraving, text burning, pattern engraving, and other applications.

[0003] Currently, portable handheld burning devices are chosen for special usage scenarios to ensure flexibility; however, the working time and stability of handheld burning devices depend on the operator. If there is any unstable grip or shaking, it will affect the burning effect. At the same time, accidentally letting go will cause the device to fall. Most designers use suction cups or magnetic adsorption to secure handheld burning devices.

[0004] However, most of the above adsorption methods are applicable to flat surfaces, and cannot meet the requirements for widespread use and stable connection for non-planar adsorption. Summary of the Invention

[0005] The purpose of this application is to provide a connection device and a laser writing device to solve the problem that the existing handheld laser writing devices cannot meet the requirements of wide use and stable connection when dealing with non-planar objects to be written.

[0006] To address the aforementioned technical problems, this application provides the following technical solutions:

[0007] The first aspect of this application provides a connecting device, which includes:

[0008] A connecting frame having a connecting end for rotatably connecting a device to be connected, so that the connecting frame can rotate about a first direction relative to the device to be connected.

[0009] An adsorption component assembly is slidably connected to the connecting frame along a second direction, so as to be able to approach or move away from the connecting end along the second direction; the adsorption component is used to adsorb the surface of the device to be connected; the second direction is the direction away from the connecting end, and the first direction is perpendicular to the second direction;

[0010] The adsorption component can be activated by a first power supply signal and deactivated by a second power supply signal.

[0011] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the adsorption component includes a first adsorption element and a second adsorption element;

[0012] The first adsorption element can activate vacuum adsorption under the third power supply signal and deactivate vacuum adsorption under the second power off signal;

[0013] The second adsorption element can activate the magnetic attraction under the first power-off signal and deactivate the magnetic attraction under the fourth power-on signal;

[0014] The first power supply signal includes at least a third power supply signal and a first power-off signal; the second power supply signal includes at least a fourth power supply signal and a second power-off signal.

[0015] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the first adsorption element includes a vacuum cylinder, a drive motor and at least two rotors;

[0016] The vacuum cylinder extends along the second direction, and the two ends of the vacuum cylinder along the second direction are respectively provided with a first opening and a second opening. The first opening is used to fit the surface of the device to be connected.

[0017] The drive motor is disposed inside the vacuum cylinder, and the output shaft of the drive motor extends in the opposite direction to the second direction;

[0018] At least two of the rotors are connected to the output shaft of the drive motor;

[0019] Under the third power supply signal, the drive motor drives the rotor to rotate so that air is discharged from the second outlet in the second direction, thereby creating a vacuum area inside the vacuum cylinder.

[0020] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the second adsorption element includes a permanent magnet and an energized coil;

[0021] The permanent magnet extends along the second direction and is used to magnetically attract the surface of the device to be connected.

[0022] The energized coil is wound around the permanent magnet body, and the magnetic poles generated by the energized coil under the fourth power supply signal are opposite to the magnetic poles of the permanent magnet body.

[0023] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the second adsorption element is disposed inside the vacuum cylinder;

[0024] The edge of the first opening is provided with a sealing pad.

[0025] In some modified embodiments of the first aspect of this application, the aforementioned connecting device further includes a power supply unit;

[0026] The first adsorption element is connected to the power supply unit through a first power supply line. A first switch is provided on the first power supply line to control the first power supply line to generate a third power supply signal or a second power off signal.

[0027] The second adsorption element is connected to the power supply unit via a second power supply line. A second switch is provided on the second power supply line to control the second power supply line to generate a fourth power supply signal or a first power off signal.

[0028] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the connecting frame includes a first connecting plate, a second connecting plate, and a slider;

[0029] The first connecting plate and the second connecting plate are spaced apart and opposite to each other along a third direction. The second connecting plate is provided with a first guide groove extending along the second direction. The third direction is perpendicular to the first direction and the second direction.

[0030] The slider is disposed between the first connecting plate and the second connecting plate. The slider passes through the first guide groove and connects to the adsorption assembly so that it can reciprocate in the second direction within the first guide groove.

[0031] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the slider includes a first portion and a second portion arranged sequentially along the third direction;

[0032] The dimension of the first part along the first direction is greater than the dimension of the second part along the first direction.

[0033] In some modified embodiments of the first aspect of this application, the aforementioned connecting device, wherein the connecting frame further includes a pad;

[0034] The two pads are spaced apart between the first connecting plate and the second connecting plate along the first direction, and the pads extend along the second direction so that the first portion can be placed between the two pads;

[0035] The first connecting plate is provided with a second guide groove along the second direction, for the locking screw to pass through and abut against the slider.

[0036] A second aspect of this application provides a laser marking apparatus, including a laser marking apparatus body and at least two of the aforementioned connecting devices, wherein the at least two connecting devices are rotatably connected to different oriented sides of the marking end of the laser marking apparatus body.

[0037] Compared to existing technologies, the connecting device provided in the first aspect of this application has a rotatable connecting end on the connecting frame, which allows the connecting device to adapt to any type of surface to be connected, including both planar and non-planar surfaces, and can automatically adjust itself in the presence of the rotatable connecting end; at the same time, the adsorption component can effectively ensure adsorption to the surface to be connected, achieving stable setting of the connecting device; it can effectively solve the problem that the adsorption method of existing handheld laser writing devices cannot meet the requirements of wide use and stable connection when dealing with non-planar objects to be written. Attached Figure Description

[0038] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0039] Figure 1 A schematic diagram of the connection device provided in this application is shown.

[0040] Figure 2 An exploded view of the structure of the connecting device provided in this application is shown schematically.

[0041] Figure 3 An exploded view of another structure of the connecting device provided in this application is shown schematically;

[0042] Figure 4 A schematic diagram of the adsorption component in the connection device provided in this application is shown.

[0043] Figure 5 A schematic diagram illustrating the interaction between the connecting device provided in this application and the device to be connected is shown.

[0044] Figure 6 A schematic diagram illustrating the fit between the connecting device provided in this application and the flattening surface is shown.

[0045] Figure 7 The diagram illustrates the connection between the connecting device provided in this application and the convex working surface.

[0046] Figure 8 A schematic diagram illustrating the fit between the connecting device and the recessed working surface provided in this application is shown.

[0047] Figure 9 A schematic diagram illustrating the fit between the connecting device provided in this application and the working surface of the curved surface is shown.

[0048] Figure 10A schematic block diagram of the connecting device provided in this application is shown.

[0049] Explanation of icon numbers:

[0050] Connecting frame 1, first connecting plate 11, second connecting plate 12, slider 13, first part 131, second part 132, first guide groove 14, pad 15, second guide groove 16, adsorption component assembly 2, device to be connected 3, first adsorption component 4, vacuum cylinder 41, first opening 411, second opening 412, sealing soft pad 413, drive motor 42, rotor 43, sealing soft pad 44, second adsorption component 5, permanent magnet 51, energized coil 52, power supply unit 6, first switch 61, second switch 62, locking screw 7, first direction a, second direction b, third direction c. Detailed Implementation

[0051] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0052] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0053] Currently, portable handheld burning devices are chosen for specific usage scenarios to ensure flexibility; however, the working time and stability of handheld burning devices depend on the operator. Any unstable grip, shaking, etc., will affect the burning effect. At the same time, accidentally letting go will cause the device to fall. Most designers use suction cups or magnetic adsorption to hold handheld burning devices; however, most of the above adsorption methods are applicable to flat surfaces, and cannot meet the requirements of wide use and stable connection for non-planar surfaces.

[0054] The connecting device provided in this embodiment achieves a rotatable connection with the device to be connected through a rotatable connecting end. Thus, when adsorbing, the rotatable characteristics of the connecting end and the mobility of the adsorption component can be used to adjust the height and angle of the adsorption component. This allows it to adapt to any type of surface, including but not limited to planes, convex surfaces, concave surfaces, continuous curved surfaces, etc. While achieving a stable adsorption connection using the adsorption component, it greatly improves the wide applicability of the connecting device.

[0055] Example 1

[0056] Reference Appendix Figure 1The first aspect of this application provides a connecting device, including a connecting frame 1 and an adsorption assembly 2. The connecting frame 1 has a connecting end for rotatably connecting a device 3 to be connected, so that the connecting frame 1 can rotate relative to the device 3 about a first direction a. The adsorption assembly 2 is slidably connected to the connecting frame 1 along a second direction b, so that it can move closer to or further away from the connecting end along the second direction b. The adsorption assembly 2 is used to adsorb the working surface of the device 3 to be connected. The second direction b is a direction away from the connecting end.

[0057] The adsorption component 2 can be activated under a first power supply signal and deactivated under a second power supply signal.

[0058] Specifically, to address the issue that existing handheld laser engraving devices cannot meet the requirements for widespread use and stable connection when engraving on non-planar objects due to their inability to utilize the adsorption method, this embodiment provides a connection device. This device can be rotatably connected to the device to be connected, i.e., the laser engraving device, by rotating its connecting end. Thus, when the laser engraving device is fixed to the surface being engraved, the rotating connecting end allows the connecting frame 1, i.e., the entire connection device, to rotate relative to both the laser engraving device and the surface being engraved, thereby achieving simultaneous application to planar, non-planar, and frosted surfaces. Simultaneously, the adsorption component 2, in conjunction with the rotating connecting frame 1, achieves stable adsorption during the engraving process under the adjustment of the power supply signal. This prevents vibrations caused by the operator's grip from affecting the engraving effect, and even if the operator releases their grip, the laser engraving device will not shift or fall, ensuring normal operation even in windy or harsh environments.

[0059] It can be understood that: in this embodiment, the first direction a and the third direction c are two directions that are parallel to the horizontal plane and perpendicular to each other, and the second direction b is a vertically upward direction; the device to be connected may be, but is not limited to, a laser engraving device, and the surface of the device to be connected is the surface of the product on which text, patterns, etc. need to be engraved.

[0060] Reference Appendix Figure 1 and attached Figure 2 The connecting frame 1 is a rigid structure, serving as the connecting carrier between the entire connecting device and the device 3 to be connected, and also as the mounting carrier for the adsorption component 2. The connecting frame 1 can be a frame structure, box structure, plate structure, etc., and can be designed and adjusted according to actual needs. In this embodiment, the connecting frame 1 is preferably configured to have a larger dimension in the second direction b, to ensure that the adsorption component 2 has a larger range of movement in the second direction b, thereby improving its applicability to different types of surfaces. The connecting end of the connecting frame 1 can be a rotating shaft or a hinge, allowing the connecting frame 1 and even the entire connecting device to rotate relative to the device 3 to be connected and the surface being acted upon. (Refer to Appendix) Figure 5 Appendix Figure 6 Appendix Figure 7 Appendix Figure 8 and appendix Figure 9 When the device to be connected 3 is adjusted and installed in accordance with the surface to be acted upon, the connecting device can move and fit together under the interaction of the connecting end and the surface to be acted upon. For example, it can move upward or downward along the second direction b to fit the convex surface, concave surface, continuous curved surface, etc., thereby ensuring a tight and stable fit between the device to be connected 3 and any surface to be acted upon.

[0061] Reference Appendix Figure 1 The adsorption component 2 is a structure capable of generating adsorption force, and can be at least one of vacuum adsorption, electromagnetic adsorption, and permanent magnet adsorption. In this embodiment, the adsorption component 2 is slidably mounted on the connecting frame 1, and the height and angle of the adsorption component 2 relative to the surface being acted upon are adjustable in conjunction with the rotatable connecting end. It can be understood that the initial position of the adsorption component 2 can be set at the end of the connecting frame 2 away from the connecting end. After the connection frame 2 and the surface being acted upon are properly matched, the adsorption component 2 is slidably moved closer to the connecting end, i.e., the surface being acted upon, to complete the adsorption with the surface being acted upon, thereby achieving a stable connection of the device to be connected.

[0062] Based on the above, the connecting device provided in the first aspect of this application has a rotatable connecting end provided by the connecting frame 1, so that when the connecting device is connected to the device to be connected 3, it can adapt to any form of the surface to be acted on, including planar and non-planar surfaces, and can automatically adjust in the presence of the rotatable connecting end; at the same time, the setting of the adsorption component 2 can also effectively ensure the adsorption of the surface to be acted on, and realize the stable setting of the connecting device; it can effectively solve the problem that the adsorption method of the existing handheld laser writing device cannot meet the requirements of wide use and stable connection when dealing with non-planar objects to be written.

[0063] Further, see Appendix Figure 4 In this embodiment, the connecting device includes a first adsorption component 4 and a second adsorption component 5. The first adsorption component 4 can activate vacuum adsorption under a third power supply signal and deactivate vacuum adsorption under a second power-off signal. The second adsorption component 5 can activate magnetic attraction under a first power-off signal and deactivate magnetic attraction under a fourth power supply signal.

[0064] The first power supply signal includes at least a third power supply signal and a first power-off signal; the second power supply signal includes at least a fourth power supply signal and a second power-off signal.

[0065] Specifically, to ensure stable adsorption and stable placement of the device to be connected on the surface, in this embodiment, the adsorption component 2 includes a first adsorption element 4 and a second adsorption element 5. The first adsorption element 4 is a vacuum adsorption structure, applicable to any material surface, such as iron, steel, plastic, glass, etc. The second adsorption component 5 is an electromagnetic adsorption structure, applicable only to ferrous surfaces. However, the electromagnetic effect of the second adsorption component 5 is unique, involving a combination of a permanent magnet and an electromagnetic coil. When the electromagnetic coil is energized, it cancels the magnetic force of the permanent magnet; when the power is off, it restores the magnetic force. Therefore, even in the event of a power outage, the magnetic adsorption of the second adsorption element 5 will not be affected even if the vacuum adsorption of the first adsorption element 4 fails. This effectively prevents the connected device from losing its adsorption force and falling off, potentially causing an accident, after a power outage, greatly improving the connection safety of the connected device. The second adsorption element 5 can also be a combination of two permanent magnets, one generating magnetic force and the other positioned opposite it, with the magnetic force adjusted or even canceled by angle adjustment. Therefore, it can be understood that when it is necessary to remove the device to be connected, the vacuum adsorption force and magnetic adsorption can be turned off by adjusting the electrical signal, thereby making it easy to remove the device to be connected.

[0066] Of course, it is understandable that: see attached document. Figure 10 In this embodiment, the connection device further includes a power supply unit 6. The first adsorption member 4 is connected to the power supply unit 6 via a first power supply line (not shown in the figure). A first switch 61 is provided on the first power supply line to control the first power supply line to generate a third power supply signal or a second power-off signal. The second adsorption member 5 is connected to the power supply unit 6 via a second power supply line (not shown in the figure). A second switch 62 is provided on the second power supply line to control the second power supply line to generate a fourth power supply signal or a first power-off signal. Furthermore, the adjustment of whether to adsorb or not can be achieved by driving the first switch 61 and the second switch 62. For example, when adsorption is required, the first switch 61 controls the first adsorption member 4 to be powered on to generate a vacuum suction force, and the second switch 62 controls the second adsorption member 5 to be powered off to generate a magnetic suction force. Correspondingly, when the recording is completed and adsorption is no longer required, the first switch 61 controls the first adsorption member 4 to be powered off to close the vacuum suction force, and the second switch 62 controls the second adsorption member 5 to be powered on to close the magnetic suction force, thereby completely disassembling the connection device. The first switch 61 and the second switch 62 are disposed on the outer surface of the connecting device to provide an operating position for the operator. The power supply unit 6 may be, but is not limited to, a battery or other energy storage device.

[0067] Further, see Appendix Figure 4In this embodiment, the connecting device includes a first adsorption member 4 comprising a vacuum cylinder 41, a drive motor 42, and at least two rotors 43. The vacuum cylinder 41 extends along the second direction b, and has a first opening 411 and a second opening 412 at both ends along the second direction b. The first opening 411 is used to fit the surface of the device to be connected. The drive motor 42 is disposed inside the vacuum cylinder 41, and the output shaft of the drive motor 42 extends in the opposite direction to the second direction b. At least two rotors 43 are connected to the output shaft of the drive motor 42. Under a third power supply signal, the drive motor 42 drives the rotors 43 to rotate so that air is discharged from the second outlet 412 along the second direction b, thereby forming a vacuum region inside the vacuum cylinder 411.

[0068] Specifically, to achieve vacuum adsorption of the first adsorption element 4, in this embodiment, the first adsorption element 4 is configured to include a vacuum cylinder 41, a drive motor 42, and at least two rotors 43. The vacuum cylinder 41 is a rigid cylinder with openings at both ends. Its specific shape can be designed and adjusted according to actual needs, and can be, but is not limited to, a cylindrical, polygonal, or prismatic cylinder. The size of the vacuum cylinder 41 can also be designed and adjusted according to actual needs. The drive motor 42 can be, but is not limited to, a high-current, high-Kv value (Kv>3000) brushless motor, and can only rotate in one direction. The rotors 43 can be, but are not limited to, small-diameter rotors, and can be rigid or flexible, as long as they can cooperate with the drive motor 42. In this embodiment, the drive motor 42 and the rotors 43 are arranged together inside the vacuum cylinder 41. The drive motor 42 drives the rotors 43 to rotate, thereby creating a vacuum region inside the vacuum cylinder 41, at least between the rotors 43 and the first opening 411, so that the first opening 411 can generate an adsorption force on the surface to be acted upon. It is understandable that the first adsorption component 4 can also be directly set as a vacuum suction cup connected to an external vacuum pumping device. At the same time, in order to adapt to handheld laser engraving devices, a small vacuum pumping device can be selected to ensure the flexibility of the laser engraving device.

[0069] Further, see Appendix Figure 4 In this embodiment, the connecting device includes a second adsorption member 5 comprising a permanent magnet 51 and an energized coil 52. The permanent magnet 51 extends along the second direction b and is used to magnetically attract the surface of the device to be connected. The energized coil 52 is wound around the permanent magnet 51, and the magnetic poles generated by the energized coil 52 under the fourth power supply signal are opposite to the magnetic poles of the permanent magnet 51.

[0070] Specifically, to achieve the effect of the second adsorption element 5 losing its magnetism when energized and retaining its magnetic attraction when de-energized, in this embodiment, the second adsorption element 5 is configured to include a permanent magnet 51 and an energized coil 52. Both the permanent magnet 51 and the energized coil 52 are easily understood by those skilled in the art and will not be elaborated upon here. In this embodiment, the combined configuration of the permanent magnet 51 and the energized coil 52 achieves the effect of the second adsorption element 5 having magnetic attraction when de-energized and losing its magnetic attraction when energized, while also ensuring a small size and weight, effectively reducing the difficulty of holding the connecting device after it is connected to the device to be connected. The end of the permanent magnet 51 facing the connecting end of the connecting frame 1 along the second direction b can be configured as a non-planar form, such as a cross-shaped groove, thus facilitating non-planar adsorption.

[0071] Furthermore, in the specific implementation of the connecting device provided in this embodiment, the second adsorption member 5 is disposed inside the vacuum cylinder 41; and a sealing pad 44 is provided at the edge of the first opening 411.

[0072] Specifically, to ensure the integrity of the connecting device, in this embodiment, the second adsorption member 5 can be placed inside the vacuum cylinder 41, thus making the vacuum cylinder 41 the outer shell structure of the adsorption assembly 2. The second opening 412 and the first opening 411 can also be set only at the location of the rotor 43. Of course, the first adsorption member 4 and the second adsorption member 5 can also be set adjacent to each other, such as... Figure 4 The state described above. To ensure the effectiveness of vacuum adsorption, a sealing pad 413 is provided at the first opening 411 of the vacuum cylinder 41 in this embodiment. The sealing pad 413 is flexible and airtight, allowing it to conform to any surface shape of the surface being acted upon when it comes into contact with the surface through the first opening 411. Furthermore, the airtight nature of the sealing pad ensures the vacuuming effect of the vacuum cylinder 41, thus guaranteeing the adsorption effect. The sealing pad 413 can be a silicone pad or an elastomer-wrapped sealing film, such as the earmuff foam sleeve on headphones.

[0073] Further, see Appendix Figure 2 In this embodiment, the connecting device includes a first connecting plate 11, a second connecting plate 12, and a slider 13. The first connecting plate 11 and the second connecting plate 12 are spaced apart and opposite to each other along a third direction c. The second connecting plate 12 is provided with a first guide groove 14 extending along the second direction b. The third direction c is perpendicular to the first direction a and the second direction b. The slider 13 is disposed between the first connecting plate 11 and the second connecting plate 12. The slider 13 passes through the first guide groove 14 and connects to the adsorption assembly 2, so that it can reciprocate within the first guide groove 14 along the second direction b.

[0074] Specifically, to achieve a sliding connection between the connecting frame 1 and the adsorption component 2, in this embodiment, the connecting frame 1 is configured to include a first connecting plate 11, a second connecting plate 12, and a slider 13. The first connecting plate 11, the second connecting plate 12, and the slider 13 are all rigid structures. The first connecting plate 11 and the second connecting plate 12 are positioned opposite each other and spaced apart to provide sliding space for the slider 13. A first guide groove 14 is provided on the second connecting plate 12, which both connects the slider 13 to the adsorption component 2 and guides the slider 13 in driving the adsorption component 2 to slide. The connection between the slider 13 and the adsorption component 2 can be by screwing, welding, snap-fitting, etc.

[0075] Further, see Appendix Figure 2 In the specific implementation of the connecting device provided in this embodiment, the slider 13 includes a first part 131 and a second part 132 arranged sequentially along the third direction c; the size of the first part 131 along the first direction a is greater than the size of the second part 132 along the first direction a.

[0076] Specifically, to ensure the stability of the slider 13 and prevent it from dislodging from the first guide groove 14, in this embodiment, the slider 13 is configured to include a first part 131 and a second part 132. Both the first part 131 and the second part 132 are rigid structures and can be plate-shaped, block-shaped, etc. The second part 132 is used to insert into the first guide groove 14 and cooperate with it, while the first part 131 is used to move between the first connecting plate 11 and the second connecting plate 12 with the second part 132 and can play a limiting role to prevent the slider 13 from dislodging from the first guide groove 14. In this embodiment, the slider 13 can be configured, but is not limited to, as follows: Figure 2 The L-shaped structure is shown. The size of the first part 131 is larger than that of the second part 132 and larger than that of the first guide groove 14 in the first direction a.

[0077] Further, see Appendix Figure 3 In this embodiment, the connecting device further includes a pad 15 in the connecting frame 1. The two pads 15 are spaced apart between the first connecting plate 11 and the second connecting plate 12 along the first direction a, and the pads 15 extend along the second direction b so that the first part 131 can be placed between the two pads 15. The first connecting plate 11 is provided with a second guide groove 16 along the second direction b, for the locking screw 7 to pass through and abut against the slider 13.

[0078] Specifically, to ensure the smooth movement of the slider 13, a pad 15 is provided in this embodiment. The pad 15 is a rigid structure, which can be plate-shaped or block-shaped. It mainly serves as a support between the first connecting plate 11 and the second connecting plate 12, providing space for the slider 13 to move. At the same time, the two pads 15 are arranged opposite each other to provide a sliding channel for the first part 131 and to limit its movement. The locking screw 7 can simply abut against the slider 13, or a corresponding locking groove (not shown in the figure) can be provided on the slider 13 to achieve a threaded engagement with the locking screw 7, ensuring stable locking of the adsorption component 2.

[0079] Example 2

[0080] A second aspect of this application provides a laser marking apparatus, including a laser marking apparatus body, i.e., at least two connecting devices, wherein the at least two connecting devices are rotatably connected to different oriented sides of the marking end of the laser marking apparatus body.

[0081] Specifically, the connecting device is the connecting device described in Embodiment 1, and the laser writing device body is the connecting device described in Embodiment 1. In this embodiment, at least two connecting devices are provided, corresponding to the laser generating end of the laser writing device body. Preferably, the two connecting devices are provided on opposite sides of the laser writing device body. Of course, multiple connecting devices can also be provided and distributed at intervals around the axial direction of the laser writing device body to effectively ensure a stable connection to the laser writing device body.

[0082] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connecting device, characterized in that, It includes: A connecting frame having a connecting end for rotatably connecting a device to be connected, so that the connecting frame can rotate about a first direction relative to the device to be connected. An adsorption component is slidably connected to the connecting frame along a second direction, so as to be able to approach or move away from the connecting end along the second direction; the adsorption component is used to adsorb the surface of the device to be connected; the second direction is the direction away from the connecting end, and the first direction is perpendicular to the second direction; The adsorption component can start adsorption under a first power supply signal and stop adsorption under a second power supply signal. The adsorption assembly includes a first adsorption element and a second adsorption element; The first adsorption element can activate vacuum adsorption under the third power supply signal and deactivate vacuum adsorption under the second power off signal; The second adsorption element can activate the magnetic attraction under the first power-off signal and deactivate the magnetic attraction under the fourth power-on signal; When the adsorption component is activated, the first adsorption element receives the third power supply signal, and the second adsorption element receives the first power-off signal; when the adsorption component is deactivated, the first adsorption element receives the second power-off signal, and the second adsorption element receives the fourth power supply signal.

2. The connecting device according to claim 1, characterized in that: The first adsorption element includes a vacuum cylinder, a drive motor, and at least two rotors; The vacuum cylinder extends along the second direction, and the two ends of the vacuum cylinder along the second direction are respectively provided with a first opening and a second opening. The first opening is used to fit the surface of the device to be connected. The drive motor is disposed inside the vacuum cylinder, and the output shaft of the drive motor extends in the opposite direction to the second direction; At least two of the rotors are connected to the output shaft of the drive motor; Under the third power supply signal, the drive motor drives the rotor to rotate so that air is discharged from the second opening in the second direction, thereby creating a vacuum area inside the vacuum cylinder.

3. The connecting device according to claim 1, characterized in that: The second adsorption element includes a permanent magnet and an energized coil; The permanent magnet extends along the second direction and is used to magnetically attract the surface of the device to be connected. The energized coil is wound around the permanent magnet body, and the magnetic poles generated by the energized coil under the fourth power supply signal are opposite to the magnetic poles of the permanent magnet body.

4. The connecting device according to claim 2, characterized in that: The second adsorption element is disposed inside the vacuum cylinder; The edge of the first opening is provided with a sealing pad.

5. The connecting device according to claim 1, characterized in that: It also includes the power supply department; The first adsorption element is connected to the power supply unit through a first power supply line. A first switch is provided on the first power supply line to control the first power supply line to generate a third power supply signal or a second power off signal. The second adsorption element is connected to the power supply unit via a second power supply line. A second switch is provided on the second power supply line to control the second power supply line to generate a fourth power supply signal or a first power off signal.

6. The connecting device according to claim 1, characterized in that: The connecting frame includes a first connecting plate, a second connecting plate, and a slider; The first connecting plate and the second connecting plate are spaced apart and opposite to each other along a third direction. The second connecting plate is provided with a first guide groove extending along the second direction. The third direction is perpendicular to the first direction and the second direction. The slider is disposed between the first connecting plate and the second connecting plate. The slider passes through the first guide groove and connects to the adsorption assembly so that it can reciprocate in the second direction within the first guide groove.

7. The connecting device according to claim 6, characterized in that: The slider includes a first part and a second part arranged sequentially along the third direction; The dimension of the first part along the first direction is greater than the dimension of the second part along the first direction.

8. The connecting device according to claim 7, characterized in that: The connecting frame also includes a pad; The two pads are spaced apart between the first connecting plate and the second connecting plate along the first direction, and the pads extend along the second direction so that the first portion can be placed between the two pads; The first connecting plate is provided with a second guide groove along the second direction, for the locking screw to pass through and abut against the slider.

9. A laser engraving device, characterized in that, It includes: Laser engraving device body; At least two of the connecting devices according to any one of claims 1-8, wherein the at least two connecting devices are rotatably connected to different oriented sides of the writing end of the laser writing device body.

Images