Suction nozzle exchange station

Abstract

The utility model provides a suction nozzle exchange station which comprises a frame body, a rotating device is arranged on the frame body, the rotating device is provided with a rotating shaft, and an unlocking mechanism is arranged on the frame body and located above the rotating shaft; the suction nozzle seat is detachably arranged on the rotating shaft, and a plurality of groups of suction nozzle positions are arranged on the circumferential surface of the suction nozzle seat along the rotating direction in an array manner; a locking plate is slidably arranged on the circumferential surface of the suction nozzle seat in the first direction, and the locking plate can slide to a first position for locking the suction nozzles on the same group of suction nozzle positions and a second position for releasing the suction nozzles; a reset mechanism used for moving the locking plate and keeping the locking plate at the first position is arranged between the suction nozzle seat and the locking plate; when the suction nozzle base is driven by the rotating device to rotate to the first circumferential position, the locking plate located at the first position can be driven by the unlocking mechanism to move and be kept at the second position. The suction nozzle exchange station provided by the utility model is small in equipment size.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic component equipment, and more specifically, to a nozzle exchange station. Background Art

[0002] The SMT placement machine is equipped with a nozzle head, which is generally equipped with a plurality of nozzles in an array to simultaneously pick up components from semiconductor devices such as PCB boards in preparation for subsequent packaging processes. During the placement operation of the SMT placement machine, different types of components often require nozzles of different sizes for adsorption. Therefore, the SMT placement machine needs to be equipped with a nozzle exchange station for nozzle replacement operations.

[0003] In the related art, each nozzle in the nozzle exchange station is arranged and stored on the same plane, which results in a large footprint and volume of the nozzle exchange station, low storage efficiency of the nozzles, and is not conducive to the miniaturization of the equipment. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a nozzle exchange station to solve the technical problem of large size of the nozzle exchange station in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is to provide a nozzle exchange station. It includes:

[0006] A frame, on which a rotating device is arranged, the rotating device has a rotating shaft, the axis of the rotating shaft is parallel to the first direction, and an unlocking mechanism is arranged on the frame and above the rotating shaft;

[0007] A nozzle seat is detachably arranged on the rotating shaft along a first direction, and a plurality of groups of nozzle positions are arranged in an array on the circumference of the nozzle seat along the rotation direction thereof, and each group of the nozzle positions includes a plurality of nozzle positions arranged in an array along the first direction for inserting nozzles; a locking plate is slidably arranged along the first direction on the circumference of the nozzle seat on which the nozzle positions are arranged, and the locking plate can slide along the first direction to a first position for locking each of the nozzles on the same group of the nozzle positions, and a second position for releasing each of the nozzles; a reset mechanism for moving the locking plate and keeping it in the first position is arranged between the nozzle seat and the locking plate;

[0008] When the nozzle holder is driven by the rotating device to rotate to a first circumferential position, the locking plate located at the first position can be driven by the unlocking mechanism to move and be held at the second position.

[0009] Optionally, the locking plate can contact the unlocking mechanism and be pushed and held in the second position by the unlocking mechanism.

[0010] Optionally, the unlocking mechanism is a cylinder assembly, which includes a cylinder and an abutment plate of a piston arranged on the cylinder, and the abutment plate is used to abut against the locking plate and push the abutment plate to slide along the first direction.

[0011] Optionally, the unlocking mechanism includes a rotating device arranged on the frame and an abutment block arranged on the rotating device, and the rotation axis of the abutment block is parallel to the first direction or the second direction; when the abutment block rotates, it can push the locking plate to move in the first direction; the ends of the locking plate and the abutment block that abut each other are both arc surfaces; the rotating device is a motor or a synchronous belt mechanism.

[0012] Optionally, an assembly hole for being sleeved on the outside of the rotating shaft is provided on the suction nozzle seat along its axial direction; and a fastener is detachably provided between the suction nozzle seat and the rotating shaft.

[0013] Optionally, the fastener includes a screw that passes through the circumference of the nozzle holder and abuts against the rotating shaft; and / or, the fastener includes a bolt that is threadedly connected to an end face of the nozzle holder away from the frame and threadedly connected to the end face; and / or, the fastener includes a pin key arranged between an end face of the nozzle holder close to the frame and the rotating shaft.

[0014] Optionally, the locking plate is made of a magnetic conductive material; the reset mechanism is a magnetic component disposed on the nozzle seat, and the magnetic component is used to push the locking plate to move from the second position to the first position.

[0015] Optionally, the reset mechanism is an elastic mechanism; the reset mechanism includes a sliding rod arranged on the nozzle seat, a connecting seat arranged on the locking plate, and an elastic member sleeved between the sliding rod and the connecting seat.

[0016] Optionally, a slide groove is opened along the first direction on the circumferential surface of the suction nozzle seat, and each suction nozzle is arranged at the bottom of the slide groove; the locking plate is slidably arranged in the slide groove.

[0017] Optionally, a locking groove is provided on the locking plate, and the locking groove has a first groove section and a second groove section of different widths and connected to each other; when the first groove section is opposite to the suction nozzle, the locking plate is located at a first position; when the second groove section is opposite to the suction nozzle, the locking plate is located at a second position.

[0018] Optionally, the locking groove is provided on the locking plate, and the locking groove has a plurality of the first groove sections and the second groove sections, and the first groove sections and the second groove sections are alternately arranged in the first direction.

[0019] Optionally, the frame includes a first frame and a second frame, the second frame is slidably arranged on the first frame along a second direction perpendicular to the first direction, and the rotating device and the nozzle holder are arranged on the second frame; a driving device is arranged on the first frame, and the driving device is used to drive the second frame to slide along the second direction.

[0020] The nozzle exchange station provided in the embodiment of the present application has at least the following beneficial effects:

[0021] The nozzle holder is rotated around a first direction, and a plurality of nozzle positions are arrayed on different circumferential surfaces of the nozzle holder. Thus, when the nozzle holder is rotated until a nozzle position on its circumferential surface is facing the placement machine head, the placement machine head can release the nozzle on it to the nozzle position and absorb a new nozzle from the nozzle position. Compared with the design of a nozzle exchange station in which each nozzle position is arranged and stored on the same plane, the area occupied by the nozzle holder can be greatly reduced, which is conducive to the miniaturization of the equipment.

[0022] In addition, by arranging an unlocking mechanism on the frame, when the nozzle holder rotates to the nozzle suction position of the placement machine head, the locking plate thereon can be guided by the unlocking mechanism and pushed to a position where each nozzle can be released. In this way, the number of power devices arranged on the nozzle exchange station can be reduced, which is conducive to simplifying the structure and saving costs.

[0023] Furthermore, the nozzle seat is detachably arranged on the rotating shaft along the first direction, which can facilitate the disassembly, assembly and replacement of the nozzle seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figures 1 to 3 A three-dimensional diagram of a nozzle exchange station in some embodiments of the present application;

[0026] Figures 4 to 6 A three-dimensional diagram of a nozzle holder in some embodiments of the present application;

[0027] Figure 7 This is a three-dimensional diagram of a locking plate in some embodiments of the present application. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element.

[0031] When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0034] In the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0035] Please also read Figures 1 to 7 , the nozzle exchange station provided in the embodiment of the present application is now described.

[0036] It should be noted that the nozzle exchange station of the embodiment of the present application is used to store the nozzles 500. Specifically, when the nozzle 500 needs to be replaced, the placement machine head descends in the vertical direction to approach the nozzle exchange station, releases the nozzle 500 on it into the nozzle position 410 of the nozzle exchange station, and absorbs and installs a new nozzle 500 from other nozzle positions 410 of the nozzle exchange station.

[0037] It can be understood that the nozzle exchange station provided in the embodiment of the present application includes a frame 100 and a nozzle holder 400 rotatably and detachably disposed on the frame 100 .

[0038] Specifically, refer to Figures 1 to 3The frame 100 is provided with a rotating device 200, which may be a rotating motor. The rotating device 200 has a rotating shaft 210, and the axial direction of the rotating shaft 210 is defined as a first direction. At the same time, an unlocking mechanism 300 is provided on the frame 100, above the rotating shaft 210 (that is, at the horizontal position of the placement nozzle 500 of the placement machine head).

[0039] refer to Figures 1 to 6 The nozzle holder 400 is detachably mounted on the rotating shaft 210 along the first direction, and the rotating device 200 is used to drive the nozzle holder 400 to rotate around the first direction. Specifically, when the nozzle holder 400 is disassembled, it is sleeved on the rotating shaft 210 along the first direction or pulled out from the rotating shaft 210. In this way, the disassembly, assembly and replacement of the nozzle holder 400 are convenient.

[0040] Several groups of nozzle positions 410 are arranged in an array on the circumference of the nozzle holder 400 along the rotation direction thereof. For example, in some embodiments, four circumferences that can be used to set the nozzle positions 410 are formed on the nozzle holder 400, and each circumference is symmetrically arranged around the axis of the nozzle holder 400. Each group of nozzle positions 410 includes several nozzle positions 410 arranged in an array along the first direction for inserting the nozzles 500.

[0041] In order to keep and fix the suction nozzles 500 on different circumferential surfaces of the suction nozzle holder 400 in the suction nozzle position 410 when the suction nozzle holder 400 rotates, a locking plate 420 is provided on the circumferential surface of the suction nozzle position 410. The locking plate 420 is slidably arranged along the first direction, specifically, it can slide to a first position or a second position. In the first position, each suction nozzle 500 on the same group of suction nozzle positions 410 is locked and fixed at the same time. In the second position, each suction nozzle 500 on the same group of suction nozzle positions 410 is unlocked at the same time, that is, it can be sucked out of the suction nozzle position 410.

[0042] For further reference, Figures 1 to 3 and Figure 5 One end of the locking plate 420 close to the frame 100 is configured to be able to contact the unlocking mechanism 300. Correspondingly, a reset mechanism 430 is provided between the nozzle holder 400 and the locking plate 420, and the reset mechanism 430 is used to make the locking plate 420 always located in the first position.

[0043] refer to Figures 1 to 3When the nozzle holder 400 rotates to a horizontal position (i.e., the first circumferential position) where its upper circumferential surface is located for the placement machine head to pick up and place the nozzle 500: the locking plate 420 on the circumferential surface can be driven by the unlocking mechanism 300, so that the position state of the locking plate 420 changes from the first position to the second position and is continuously maintained at the second position under the drive of the unlocking mechanism 300. At this time, each nozzle 500 on the circumferential surface is released, and the placement machine head can smoothly pick up and place the nozzle 500; or, the unlocking mechanism 300 can also release the locking plate 420, so that the position state of the locking plate 420 changes from the second position to the first position again, and is continuously maintained at the first position under the action of the resetting mechanism 430. At this time, each nozzle 500 on the circumferential surface is locked and fixed.

[0044] By arranging the nozzle exchange station in this way, compared with the design of the nozzle exchange station in which each nozzle position 410 is arranged and stored on the same plane, the volume of the nozzle holder 400 can be greatly reduced, which is conducive to the miniaturization of the equipment; at the same time, the nozzle holder 400 is easy to disassemble and assemble, and the operation is relatively convenient whether it is in the early assembly or maintenance and replacement during use.

[0045] It can be understood that the unlocking mechanism 300 can have the following implementations.

[0046] For example, in the first embodiment, the unlocking mechanism 300 is an electromagnet device, and the locking plate 420 is made of a magnetic conductive material, so that when the unlocking mechanism 300 is energized, a magnetic field is generated and the locking plate 420 is attracted to move from the first position to the second position, thereby unlocking the suction nozzle 500.

[0047] refer to Figures 1 to 3 In the second embodiment, the locking plate 420 can contact the unlocking mechanism 300 and be pushed and maintained in the second position by the unlocking mechanism 300, that is, the unlocking mechanism 300 pushes the locking plate 420 to change position by contacting the locking plate 420.

[0048] refer to Figure 1 and Figure 3 In some implementations of the aforementioned second embodiment, the unlocking mechanism 300 may be a cylinder assembly. Specifically, the cylinder assembly includes a cylinder 311 and an abutment plate 312 of a piston disposed on the cylinder 311, and the abutment plate 312 is used to abut against the locking plate 420. The cylinder 311 pushes the abutment plate 312 to move so as to push the locking plate 420 to move from the first position to the second position. When the cylinder 311 drives the abutment plate 312 to reset, the locking plate 420 returns to the first position from the second position under the push of the reset mechanism 430.

[0049] It is understandable that the abutment plate 312 can be slidably disposed on the frame 100 along the first direction, or can be slidably disposed on the frame 100 along a third direction perpendicular to the first direction (the first direction and the third direction are both located on the same horizontal plane). It is understandable that when the abutment plate 312 is slidably disposed along the third direction, the ends of the abutment plate 312 abutting against the locking plate 420 are both arc surfaces.

[0050] refer to Figure 2 In some other implementations of the aforementioned second embodiment, the unlocking mechanism 300 may also include a rotatable abutment block 322 and a rotating device 321 for driving the abutment block 322 to rotate.

[0051] It should be understood that the abutting block 322 and the locking plate 420 have an arc surface on which they abut. For example, the abutting block 322 may be cam-shaped or in other shapes, and the present invention is not limited thereto.

[0052] It is important to understand that reference Figures 1 to 3 In this embodiment, the rotating device 321 can be a synchronous belt transmission mechanism or simply a rotating motor.

[0053] Specifically, in some configurations, reference Figure 2 , the rotation axis of the abutment block 322 is parallel to the first direction, and the rotating device 321 is disposed on the vertical surface of the frame 100 facing the nozzle holder 400. It should be understood that the rotation radius of the abutment block 322 at the abutment point with the locking plate 420 is smaller than the radius of the nozzle holder 400, for example, 1 / 2 of the radius of the nozzle holder 400, so as to avoid motion interference with each locking plate 420 when the nozzle holder 400 rotates. When the nozzle holder 400 rotates to the first circumferential position, the rotating device 321 drives the abutment block 322 to rotate to contact the locking plate 420 located at the first circumferential position, thereby pushing the locking plate 420 to move.

[0054] In some other settings, refer to Figure 1 and Figure 3 The rotation axis of the abutment block 322 is parallel to the second direction (that is, perpendicular to the first direction and located on the same vertical plane as the first direction), and the abutment block 322 is disposed on the horizontal plane where the first circumferential position is located. When the nozzle holder 400 rotates to the first circumferential position, the rotating device 321 drives the abutment block 322 to rotate to contact the locking plate 420 located at the first circumferential position, thereby pushing the locking plate 420 to move.

[0055] In some embodiments, reference Figure 5 and Figure 6The nozzle holder 400 is provided with an assembly hole 430 along its axial direction for being sleeved on the outside of the rotating shaft 210. The assembly hole 430 may be completely penetrated through the nozzle holder 400 along the first direction, or may be only provided with a certain depth in the first direction. Meanwhile, a fastener is detachably provided between the nozzle holder 400 and the rotating shaft 210. By providing the fastener, the nozzle holder 400 can be fixed after being sleeved on the rotating shaft 210.

[0056] More specifically, the fasteners may be arranged in the following manner.

[0057] refer to Figures 4 to 6 In some configurations, the fastener includes a screw that penetrates the circumference of the nozzle holder 400 and abuts against the rotating shaft 210. Specifically, a threaded hole 441 is provided on at least one circumference of the nozzle holder 400, and a screw is threadedly connected to each threaded hole 441. The bottom end of the screw abuts against the rotating shaft 210, thereby fixing the nozzle holder 400 on the rotating shaft 210 in the circumferential direction and the axial direction.

[0058] refer to Figure 3 and Figure 6 In other configurations, the fastener includes a bolt 442 that is threadedly connected to an end face of the nozzle holder 400 away from the frame 100 and threadedly connected to the end face. It is understandable that threaded holes are correspondingly provided on an end face of the rotating shaft 210 and an end face of the nozzle holder 400, and the bolt 442 is threadedly connected between the two threaded holes to fix the nozzle holder 400 in the circumferential direction and the axial direction.

[0059] refer to Figure 4 and Figure 5 In some other configurations, the fastener includes a pin key 443 disposed between an end surface of the nozzle holder 400 close to the frame 100 and the rotating shaft 210. In this way, the nozzle holder 400 can also be fixed in the circumferential direction.

[0060] It is understandable that the fastener may be any one of the above-mentioned configurations, or a combination of any two or three of the above-mentioned configurations, and is not limited thereto.

[0061] refer to Figures 1 to 3 and Figure 5 It can be understood that the aforementioned reset mechanism 430 can have the following specific implementations.

[0062] In some specific embodiments, the locking plate 420 is made of a magnetic conductive material; the reset mechanism 430 is a magnetic member disposed on the nozzle holder 400, and the magnetic member is used to push the locking plate 420 from the second position to the first position. For example, if the magnetic member is disposed on the side close to the frame 100, the magnetic member and the locking plate 420 are made of magnetic conductive materials that attract each other, so that during the rotation of the nozzle holder 400, when the locking plate 420 and the guide mechanism are separated from the abutment relationship, the magnetic member can absorb the locking plate 420 to move and maintain it in the first position; if the magnetic member is disposed on the side away from the frame 100, the magnetic member and the locking plate 420 are made of magnetic conductive materials that repel each other, so that when the unlocking mechanism is reset, the magnetic member can push the locking plate 420 to move and maintain it in the first position.

[0063] refer to Figures 1 to 3 and Figure 5 In other specific embodiments, the reset mechanism 430 is an elastic mechanism, which can keep the locking plate 420 in the first position by elastic force. Specifically, the reset mechanism 430 includes a slide bar 431 disposed on the nozzle holder 400, a connecting seat 433 disposed on the locking plate 420, and an elastic member 432 sleeved between the slide bar 431 and the connecting seat 433, and the elastic member 432 can be a spring. In some possible embodiments, the slide bar 431 is disposed on the side of the nozzle holder 400 away from the rotating device 200, and the connecting seat 433 is fixedly disposed on the locking plate 420 to effectively increase the contact area between the locking plate 420 and the elastic member 432, thereby improving the stability of the movement of the locking plate 420.

[0064] Based on any of the above embodiments, Figures 1 to 7 In some embodiments, the specific connection method between the nozzle holder 400 and the locking plate 420 is as follows. That is, a slide groove 450 is opened along the first direction on the circumference of the nozzle holder 400, the depth of the slide groove 450 is adapted to the thickness of the locking plate 420, each nozzle position 410 is arranged at the bottom of the slide groove 450; the locking plate 420 is slidably arranged in the slide groove 450. Furthermore, the slide groove 450 passes through the two end surfaces of the nozzle holder 400. In this way, the locking plate 420 is easy to assemble and has good stability on the nozzle holder 400.

[0065] Based on any of the above embodiments, the locking plate 420 may be specifically arranged in the following manner. That is, the locking plate 420 is provided with a locking groove 421, and the locking groove 421 has a first groove section 4212 and a second groove section 4211 of different widths and connected. It is understandable that only one locking groove 421 may be arranged on the locking plate 420, or multiple locking grooves 421 may be arranged.

[0066] When only one locking groove 421 is provided on the locking plate 420, the locking groove 421 is provided corresponding to each suction nozzle position 410 on the same circumferential surface. Specifically, the first groove section 4212 and the second groove section 4211 on the locking groove 421 are provided with multiple sections and the number of the two sections is the same, and at the same time, each first groove section 4212 and each second groove section 4211 are alternately arranged in the first direction.

[0067] When there are multiple locking grooves 421 on the locking plate 420, each locking groove 421 is provided corresponding to each nozzle position 410. Specifically, the first groove section 4212 and the second groove section 4211 on the locking groove 421 are each provided with only one section; at the same time, the multiple locking grooves 421 are arranged in an array in the first direction.

[0068] The locking groove 421 is configured such that when the first groove section 4212 faces the nozzle position 410, the locking plate 420 is located at the first position; when the second groove section 4211 faces the nozzle position 410, the locking plate 420 is located at the second position. Thus, when the guide mechanism or the reset mechanism 430 pushes the locking plate 420 to move along the first direction, the first groove section 4212 or the second groove section 4211 in the locking groove 421 can face the nozzle position 410 respectively, so as to fix or release the nozzle 500.

[0069] Based on any of the above embodiments, Figure 1 and Figure 3 The frame 100 includes a first frame 110 and a second frame 120. The second frame 120 is slidably disposed on the first frame 110 along a second direction perpendicular to the first direction (the second direction is also the height direction of the nozzle exchange station), and the rotating device 200 and the nozzle holder 400 are disposed on the second frame 120. In this way, the height position of the nozzle holder 400 on the first frame 110 is adjustable, and can be adaptively adjusted according to the nozzle pick-up and placement height of the placement machine head, and the nozzle exchange station has strong adaptability.

[0070] Specifically, in some embodiments, a slide rail assembly is disposed on the first frame 110 along the second direction, the second frame 120 is disposed on the slide rail assembly, and a driving device 130 is disposed between the first frame 110 and the second frame 120, and the driving device 130 may be a motor or a cylinder.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A nozzle exchange station, characterized in that: include: A frame, on which a rotating device is arranged, the rotating device has a rotating shaft, the axis of the rotating shaft is parallel to the first direction, and an unlocking mechanism is arranged on the frame and above the rotating shaft; A nozzle seat is detachably arranged on the rotating shaft along a first direction, and a plurality of groups of nozzle positions are arranged in an array on the circumference of the nozzle seat along the rotation direction thereof, and each group of the nozzle positions includes a plurality of nozzle positions arranged in an array along the first direction for inserting nozzles; a locking plate is slidably arranged along the first direction on the circumference of the nozzle seat on which the nozzle positions are arranged, and the locking plate can slide along the first direction to a first position for locking each of the nozzles on the same group of the nozzle positions, and a second position for releasing each of the nozzles; a reset mechanism for moving the locking plate and keeping it in the first position is arranged between the nozzle seat and the locking plate; When the nozzle holder is driven by the rotating device to rotate to a first circumferential position, the locking plate located at the first position can be driven by the unlocking mechanism to move and be held at the second position.

2. The nozzle exchange station according to claim 1, characterized in that: The locking plate can contact the unlocking mechanism and be pushed and held in the second position by the unlocking mechanism.

3. The nozzle exchange station according to claim 2, characterized in that: The unlocking mechanism is a cylinder assembly, which includes a cylinder and an abutment plate of a piston arranged on the cylinder, and the abutment plate is used to abut against the locking plate and push the abutment plate to slide along the first direction.

4. The nozzle exchange station according to claim 2, characterized in that: The unlocking mechanism includes a rotating device arranged on the frame and an abutment block arranged on the rotating device, wherein the rotation axis of the abutment block is parallel to the first direction or the second direction; when the abutment block rotates, it can push the locking plate to move in the first direction; the ends of the locking plate and the abutment block that abut each other are both arc surfaces; the rotating device is a motor or a synchronous belt mechanism.

5. The nozzle exchange station according to claim 1, characterized in that: An assembly hole for sleeved on the outer side of the rotating shaft is arranged on the suction nozzle seat along the axial direction thereof; and a fastener is detachably arranged between the suction nozzle seat and the rotating shaft.

6. The nozzle exchange station according to claim 5, characterized in that: The fastener includes a screw that passes through the circumference of the nozzle holder and abuts against the rotating shaft; and / or the fastener includes a bolt that is threadedly connected to an end face of the nozzle holder away from the frame and threadedly connected to the end face; and / or the fastener includes a pin key arranged between an end face of the nozzle holder close to the frame and the rotating shaft.

7. The nozzle exchange station according to any one of claims 1 to 6, characterized in that: The locking plate is made of magnetic conductive material; the reset mechanism is a magnetic attraction member arranged on the nozzle seat, and the magnetic attraction member is used to push the locking plate to move from the second position to the first position.

8. The nozzle exchange station according to any one of claims 1 to 6, characterized in that: The reset mechanism is an elastic mechanism; the reset mechanism comprises a slide bar arranged on the nozzle seat, a connecting seat arranged on the locking plate, and an elastic member sleeved between the slide bar and the connecting seat.

9. The nozzle exchange station according to any one of claims 1 to 6, characterized in that: A slide groove is provided on the circumferential surface of the nozzle seat along a first direction, and each nozzle is arranged at the bottom of the slide groove; and the locking plate is slidably arranged in the slide groove.

10. The nozzle exchange station according to any one of claims 1 to 6, characterized in that: A locking groove is provided on the locking plate, and the locking groove has a first groove section and a second groove section of different widths and connected to each other; when the first groove section faces the suction nozzle, the locking plate is located at the first position; when the second groove section faces the suction nozzle, the locking plate is located at the second position.

11. The nozzle exchange station according to claim 10, characterized in that: The locking plate is provided with one locking groove, and the locking groove is provided with a plurality of the first groove sections and the second groove sections, and the first groove sections and the second groove sections are alternately arranged in a first direction.

12. The nozzle exchange station according to any one of claims 1 to 6, characterized in that: The frame includes a first frame and a second frame, the second frame is slidably arranged on the first frame along a second direction perpendicular to the first direction, the rotating device and the nozzle holder are arranged on the second frame; a driving device is arranged on the first frame, and the driving device is used to drive the second frame to slide along the second direction.

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