Positioning device and plate processing equipment

Abstract

The utility model belongs to the technical field of circuit board processing, and provides a positioning device and board processing equipment, the board processing equipment comprises the positioning device, the positioning device comprises an adsorption platform and a covering mechanism, the adsorption surface of the adsorption platform is provided with a plurality of adsorption holes, and the covering mechanism comprises a covering piece and a winding assembly. The covering piece is used for selectively covering the adsorption holes so as to adjust the range of the adsorption area of the adsorption surface; the covering piece is provided with a first end and a second end which are opposite, and the second end is connected with the furling assembly; the winding assembly is arranged at one end of the adsorption platform and used for winding the covering piece. Even if circuit boards of different sizes and other boards are placed on the adsorption surface, the effective adsorption capacity of the whole adsorption platform is maintained under the range adjustment of the covering mechanism on the adsorption area, and the adsorption stability of the adsorption platform on the boards of different sizes is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of circuit board processing, and more particularly to a positioning device and a plate processing equipment. BACKGROUND

[0002] In the plate processing process such as circuit board, an adsorption platform is often used to adsorb and fix the circuit board. However, in the related technology, the adsorption area layout of the adsorption platform is fixed when the adsorption platform is designed and manufactured. When the adsorption platform with fixed adsorption area layout is used to adsorb circuit boards of different sizes, if the size of the circuit board is small and the adsorption area cannot be effectively covered, the adsorption platform will form a serious vacuum leakage, which will cause the effective adsorption capacity of the entire adsorption platform to decrease significantly, and it is difficult to form sufficient adsorption pressure difference at the bottom of the circuit board, thereby causing the circuit board to be not firmly adsorbed, and further causing the circuit board to deviate during the processing process, thereby reducing the production quality of the circuit board. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the problems existing in the prior art, the main purpose of the present application is to provide a positioning device and a plate processing equipment.

[0004] In order to achieve the above-mentioned purpose, the following technical solutions are specifically adopted in the present application:

[0005] According to the first aspect of the embodiment of the present application, a positioning device is provided, comprising:

[0006] An adsorption platform, the adsorption platform has an adsorption surface, and the adsorption surface is provided with a plurality of adsorption holes;

[0007] A covering mechanism, the covering mechanism comprises a covering piece and a winding assembly, the covering piece is used for selectively covering the adsorption holes to adjust the range of the adsorption area of the adsorption surface, the covering piece has opposite first and second ends, the winding assembly is arranged at one end of the adsorption platform and connected with the second end, and the winding assembly is used for winding the covering piece;

[0008] Wherein, in the case that the first end is away from the winding assembly, the number of the adsorption holes covered by the covering piece increases to reduce the range of the adsorption area; in the case that the first end is close to the winding assembly, the number of the adsorption holes covered by the covering piece decreases to increase the range of the adsorption area.

[0009] Optionally, the winding assembly comprises a fixing seat and a winding shaft, the fixing seat is arranged at one end of the adsorption platform, the winding shaft is rotatably connected with the fixing seat, and the second end is connected with the winding shaft.

[0010] Optionally, the rolling assembly further comprises a reset member, the reset member is connected with the winding shaft and the fixing base respectively, and the reset member is used to provide a restoring force for the winding shaft to roll up the cover member.

[0011] Optionally, the rolling assembly further comprises a support member, the support member is connected with the fixing base, the support member is provided with a first clamping groove, the winding shaft is provided with a second clamping groove, the reset member is sleeved on the winding shaft, one end of the reset member is clamped into the first clamping groove, and the other end of the reset member is clamped into the second clamping groove.

[0012] Optionally, the rolling assembly further comprises a guide shaft, the guide shaft is rotatably connected with the fixing base, the axial direction of the guide shaft is parallel to the axial direction of the winding shaft, the guide shaft is arranged on the side of the winding shaft close to the adsorption surface, and the guide shaft is supported between the adsorption platform and the cover member.

[0013] Optionally, the cover member is a flexible film.

[0014] Optionally, the cover mechanism further comprises a clamping assembly, the clamping assembly is adjustably arranged on the adsorption platform along a preset direction, the clamping assembly is connected with the first end of the cover member, so that when the clamping assembly is adjusted in position along the preset direction, the first end of the cover member is driven to move away from or close to the rolling assembly.

[0015] Optionally, the clamping assembly comprises a rotating shaft and a clamping member, the clamping member is arranged on the rotating shaft, the rotating shaft drives the clamping member to lift up or press down relative to the adsorption surface when the rotating shaft rotates, and the rotating shaft is connected with the first end of the cover member.

[0016] The clamping assembly further comprises a mounting base and / or a rotating driving member, the mounting base is movably arranged on the adsorption platform along the preset direction, the rotating shaft is rotatably connected with the mounting base, the rotating driving member is movably arranged on the adsorption platform along the preset direction, the rotating driving member is connected with the rotating shaft, and the rotating driving member is used to drive the rotating shaft to rotate relative to the adsorption platform.

[0017] Optionally, when the clamping assembly further comprises the mounting base, the adsorption platform is provided with a plurality of first mounting positions, the plurality of first mounting positions are distributed at intervals along the preset direction, and the mounting base is selectively arranged at one of the first mounting positions, so that the mounting base is adjustably arranged on the adsorption platform.

[0018] In the case that the clamping assembly further comprises the rotary driving member, the adsorption platform is provided with a plurality of second mounting positions, the plurality of second mounting positions are distributed along the preset direction, and the rotary driving member is selectively arranged in one of the second mounting positions, so that the rotary driving member is adjustably arranged on the adsorption platform.

[0019] Optionally, the rotary driving member comprises:

[0020] a mounting portion movably arranged on the adsorption platform along the preset direction;

[0021] a driving source arranged on the mounting portion;

[0022] a sliding block in sliding connection with the mounting portion and in fixed connection with the driving source;

[0023] a connecting rod having one end hingedly connected with the sliding block; and

[0024] a swinging portion in fixed connection with the rotating shaft, the swinging portion being hingedly connected with the other end of the connecting rod; wherein

[0025] when the driving source drives the sliding block to slide along the preset direction, the sliding block drives the swinging portion to swing around the axis of the rotating shaft through the connecting rod, so that the swinging portion drives the rotating shaft to rotate.

[0026] Optionally, the positioning device further comprises a clamping mechanism arranged on the adsorption platform, the clamping mechanism and the clamping assembly clamping different side edges of the board placed on the adsorption surface.

[0027] According to a second aspect of the embodiments of the present application, a board processing equipment is provided, comprising a rack, a processing device and the positioning device as described in any of the above, the positioning device and the processing device are arranged on the rack, and the processing device is used for processing the board placed on the adsorption platform of the positioning device.

[0028] The positioning device and the panel processing equipment provided by the application have the beneficial effects that, compared with the prior art, the positioning device of the application is additionally provided with a covering mechanism, the covering mechanism includes a covering piece and a rolling assembly for rolling the covering piece, when the covering piece is subjected to external force, the first end of the covering piece can move close to or away from the rolling assembly, in the case that the first end is away from the rolling assembly, the number of the adsorption holes covered by the covering piece increases, so as to reduce the range of the adsorption area of the adsorption surface of the adsorption platform, in the case that the first end is close to the rolling assembly, the number of the adsorption holes covered by the covering piece decreases, so as to increase the range of the adsorption area, based on the adjustment of the range of the adsorption area by the covering mechanism, even if the panel such as the circuit board with different sizes is placed on the adsorption surface, the degree of vacuum leakage of the adsorption platform can be effectively reduced, the effective adsorption capacity of the entire adsorption platform is maintained, and the adsorption stability of the adsorption platform to the panel with different sizes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 A top view structural schematic diagram of the positioning device provided by an embodiment of the application;

[0031] Figure 2 A perspective structural schematic diagram of the positioning device provided by an embodiment of the application;

[0032] Figure 3 A top view structural schematic diagram of a part of the covering mechanism provided by an embodiment of the application;

[0033] Figure 4 A top view structural schematic diagram of a part of the covering mechanism provided by an embodiment of the application; Figure 3 A sectional view structural schematic diagram of A-A in FIG. 6;

[0034] Figure 5 A side view structural schematic diagram of a part of the covering mechanism provided by an embodiment of the application;

[0035] Figure 6 A perspective structural schematic diagram of a part of the covering mechanism provided by an embodiment of the application;

[0036] Figure 7 An enlarged structural schematic diagram of A in FIG. 8; Figure 6 An enlarged structural schematic diagram of A in FIG. 8;

[0037] Figure 8 A perspective structural schematic diagram of the clamping mechanism or the clamping assembly provided by an embodiment of the applicationFigure 1 ;

[0038] Figure 9 This is a three-dimensional structural schematic diagram of an adsorption platform provided in one embodiment of this application;

[0039] Figure 10 A three-dimensional structural diagram of a clamping mechanism or clamping assembly provided in one embodiment of this application. Figure 2 ;

[0040] Figure 11 for Figure 10 A magnified structural diagram at point B in the diagram.

[0041] Explanation of key figure labels:

[0042] 10. Adsorption platform; 11. Adsorption hole; 12. Adsorption area; 13. First mounting position; 14. Second mounting position; 15. Mounting groove; 20. Covering mechanism; 21. Covering component; 22. Rewinding assembly; 221. Winding shaft; 2211. Second slot; 222. Fixing base; 223. Reset component; 224. Support component; 2241. First slot; 225. Guide shaft; 23. Clamping assembly; 30. Rotating shaft; 40. Clamping component; 50. Rotation drive component; 51. Mounting part; 52. Drive source; 53. Slider; 54. Connecting rod; 55. Swinging part; 60. Mounting base; 70. Clamping mechanism; F1. First direction; F2. Second direction. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0047] It should be noted that the circuit board in the present application includes but is not limited to printed circuit board (PCB), flexible printed circuit (FPC), rigid-flex board, high-density interconnection board (HDI), integrated circuit substrate, metal substrate, glass substrate, ceramic substrate, etc. The circuit board can be divided into single-layer board and multi-layer board according to function and structure.

[0048] Please refer to Figures 1 to 11 , the positioning device provided by the embodiments of the present application will be described. The positioning device is used for positioning the circuit board and other boards.

[0049] Please refer to the accompanying Figure 1 and Figure 2 , the positioning device includes an adsorption platform 10 and a covering mechanism 20.

[0050] The adsorption platform 10 has an adsorption surface, and the adsorption surface is provided with a plurality of adsorption holes 11, and the plurality of adsorption holes 11 are arranged in an array. Exemplarily, a preset number of adsorption holes 11 are arranged in a column along a first direction F1, and a preset number of adsorption holes 11 are arranged in a row along a second direction F2, and the second direction F2 intersects the first direction F1. Optionally, the second direction F2 is perpendicular to the first direction F1, for example, the first direction F1 is horizontal transverse, and the second direction F2 is horizontal longitudinal.

[0051] The covering mechanism 20 includes a covering piece 21 and a winding assembly 22. The covering piece 21 is movably arranged on the adsorption platform 10, and the covering piece 21 is used for selectively covering the adsorption holes 11, that is, the covering piece 21 covers part of the area of the adsorption platform 10 to cover the adsorption holes 11 in the corresponding area, so as to adjust the range of the adsorption area 12 of the adsorption surface, and the adsorption area 12 is used for placing and adsorbing the circuit board. The winding assembly 22 is arranged at one end of the adsorption platform 10, and the winding assembly 22 is used for winding the covering piece 21.

[0052] Among them, the covering piece 21 has opposite first end and second end, the winding assembly 22 is connected with the second end of the covering piece 21.

[0053] When the cover 21 is subjected to external force, the first end of the cover 21 can move close to or away from the rolling assembly 22. Specifically, in the case that the first end of the cover 21 moves away from the rolling assembly 22, the number of the cover 21 covering the adsorption holes 11 increases, so as to reduce the range of the adsorption area 12. In the case that the first end of the cover 21 moves close to the rolling assembly 22, the number of the cover 21 covering the adsorption holes 11 decreases, so as to increase the range of the adsorption area 12. It is worth mentioning that in the case that the first end of the cover 21 is close to the rolling assembly 22, the rolling assembly 22 can roll at least part of the cover 21.

[0054] The adsorption platform 10 is connected with a vacuum pump, and the adsorption platform 10 is vacuumized by the vacuum pump, so that the adsorption holes 11 generate adsorption force. Specifically, the adsorption platform 10 is further provided with a vacuum cavity and a vacuum interface. The vacuum cavity is in communication with each adsorption hole 11, and the vacuum interface is in communication with the vacuum cavity. The vacuum interface is connected with the vacuum pump through an air pipe. The vacuum pump is connected with the vacuum cavity through the air pipe and the vacuum interface, so as to form negative pressure at the adsorption holes 11, thereby generating adsorption force.

[0055] The adsorption area 12 refers to the area of the adsorption platform 10 exposed by the adsorption holes 11. In other words, the adsorption area 12 is jointly constituted by the adsorption holes 11 not covered by the cover 21. Specifically, when the adsorption platform 10 is vacuumized by the vacuum pump, all the adsorption holes 11 on the adsorption platform 10 generate adsorption force. The adsorption holes 11 not covered by the cover 21 can be used to adsorb the circuit board to be processed, and the adsorption holes 11 covered by the cover 21 adsorb the cover 21. It can be understood that by selectively covering different numbers of adsorption holes 11, the range of the adsorption area 12 of the adsorption platform 10 is adjusted to meet the adsorption requirements of different sizes.

[0056] Compared with the prior art, the positioning device provided by the present application selectively covers different numbers of adsorption holes 11 by the cover 21, so as to adjust the range of the adsorption area 12 of the adsorption platform 10, meet the adsorption requirements of circuit boards of different sizes, effectively reduce the vacuum leakage of the adsorption platform 10, maintain the effective adsorption capacity of the entire adsorption platform 10, and improve the adsorption stability of the adsorption platform 10 to circuit boards of different sizes.

[0057] Please continue to combine the accompanying drawings Figure 1 And Figure 2 It can be understood that the covering mechanism 20 can further include a clamping assembly 23 in addition to the cover 21 and the rolling assembly 22.

[0058] The clamping assembly 23 is adjustably arranged on the adsorption platform 10 along a preset direction, and the clamping assembly 23 is connected with the first end of the cover 21, so that the first end of the cover 21 is driven to move away from or close to the rolling assembly 22 when the clamping assembly 23 is adjusted along the preset direction. In this way, the cover 21 is driven to cover or expose the adsorption holes 11 when the clamping assembly 23 is adjusted along the preset direction, so that the position adjustment of the clamping assembly 23 and the range adjustment of the adsorption area 12 are synchronously performed without separately operating the cover 21.

[0059] Exemplarily, Figure 1 The first direction F1 is the preset direction, and the cover 21 connected with the clamping assembly 23 moves synchronously with the clamping assembly 23 when the clamping assembly 23 is adjusted along the first direction F1, so that the cover 21 selectively covers or exposes the adsorption holes 11 on the adsorption platform 10, thereby adjusting the range of the adsorption area 12 through the cover 21.

[0060] It can be understood that in an example, the number of cover mechanisms 20 can be two. Exemplarily, in the case that the number of cover mechanisms 20 is two, the two cover mechanisms 20 are respectively arranged on opposite sides of the adsorption area 12 along the preset direction, so that the two clamping assemblies 23 arranged oppositely along the preset direction can clamp the opposite sides of the circuit board on the adsorption area 12. In addition, since the clamping assembly 23 is adjustably arranged on the adsorption platform, at least one of the two clamping assemblies 23 can drive the connected cover 21 to cover or expose the adsorption holes 11 when the position of the clamping assembly 23 is adjusted along the preset direction, thereby adjusting the range of the adsorption area 12.

[0061] The circuit board to be processed is placed on the adsorption area 12, and the two clamping assemblies 23 clamp the opposite sides of the circuit board along the preset direction respectively. The vacuum pump evacuates the adsorption platform 10, so that the adsorption holes 11 of the adsorption area 12 generate adsorption force to adsorb the circuit board, thereby realizing the stable positioning of the circuit board under the double action of adsorption and clamping. Of course, the circuit board to be processed can also be placed on the adsorption platform 10 first, and then the range of the adsorption area 12 and the clamping interval between the two clamping assemblies 23 are adjusted according to the size of the circuit board.

[0062] Please continue to combine the accompanying Figure 1 and Figure 2 It can be understood that in addition to the adsorption platform 10 and the cover mechanism 20, the positioning device can also include a clamping mechanism 70. The clamping mechanism 70 and the clamping assembly 23 clamp different side edges of the circuit board (not shown in the figure) placed on the adsorption surface.

[0063] For example, a clamping mechanism 70 and a clamping component 23 may be respectively disposed on adjacent two sides of the circuit board on the adsorption surface, or a clamping mechanism 70 and a clamping component 23 may be respectively disposed on opposite two sides of the circuit board on the adsorption surface. It is worth mentioning that the number of clamping mechanisms 70 is not limited in this embodiment, that is, there may be one or more clamping mechanisms 70, any two clamping mechanisms 70 clamp different sides of the circuit board, and any clamping mechanism 70 and clamping component 23 clamp different sides of the circuit board.

[0064] In a specific example, as shown in the appendix Figure 1 as well as Figure 2 As shown, a clamping mechanism 70 and a covering mechanism 20 are respectively disposed on opposite sides of the adsorption area 12 along a preset direction, for clamping the circuit board on the adsorption area 12. Since the position of the clamping component 23 in the covering mechanism 20 is adjustable along the preset direction, the clamping distance between the clamping component 23 and the clamping mechanism 70 in the preset direction can be adjusted so that the clamping distance is adapted to the size of the circuit board in the preset direction.

[0065] It is worth mentioning that the clamping mechanism 70, which is disposed opposite to the covering mechanism 20, can be adjustablely disposed on the adsorption platform 10. For example, when it is necessary to adjust the range of the adsorption area 12 and the clamping distance between the clamping mechanism 70 and the clamping component 23 according to the size of the circuit board to be processed, at least one of the clamping mechanism 70 and the clamping component 23 is adjusted along a preset direction to change the relative position of the clamping mechanism 70 and the clamping component 23 in the preset direction, thereby realizing the adjustment of the clamping distance between the clamping mechanism 70 and the clamping component 23 in the preset direction.

[0066] Alternatively, the clamping mechanism 70, which is disposed opposite to the covering mechanism 20, can be fixed on the adsorption platform 10, and the clamping distance between the clamping component 23 of the covering mechanism 20 and the clamping mechanism 70 in the preset direction can also be adjusted.

[0067] By setting a clamping mechanism 70 relative to the clamping component 23 along a preset direction, regardless of whether the position of the clamping mechanism 70 on the adsorption platform 10 is adjustable, the clamping distance between the clamping mechanism 70 and the clamping component 23 in the preset direction can be adjusted based on the fact that the clamping component 23 is adjustable on the adsorption platform 10. This can meet the clamping requirements of different sized plates. It can be understood that the positioning device of this application can adapt to plates of various sizes by flexibly adjusting the range of the adsorption area 12 and the range of the clamping distance, thereby enhancing the versatility of the device and reducing the replacement cost of the device.

[0068] The circuit board to be processed is placed on the adsorption area 12, and the clamping assembly 23 and the clamping mechanism 70 clamp opposite sides of the circuit board along the preset direction respectively. The vacuum pump pumps the adsorption platform 10 to vacuum, so that the adsorption holes 11 of the adsorption area 12 generate adsorption force to adsorb the circuit board, thereby realizing the stable positioning of the circuit board under the double action of adsorption and clamping. Of course, the circuit board to be processed can also be placed on the adsorption platform 10 first, and then the range of the adsorption area 12 and the clamping spacing between the clamping assembly 23 and the clamping mechanism 70 are adjusted according to the size of the circuit board.

[0069] In the present example, the clamping assembly 23 is connected with the cover 21, so that the cover 21 covers or exposes the adsorption holes 11 when the clamping assembly 23 adjusts the position along the preset direction, thereby realizing the synchronous adjustment of the clamping spacing between the clamping assembly 23 and the clamping mechanism 70 and the range of the adsorption area 12, without the need for separate operation of the cover 21, greatly simplifying the operation process, saving time and effort, and being conducive to improving the processing efficiency of the circuit board and reducing the production cost of the circuit board. In addition, the adsorption area 12 can be adjusted adaptively with the clamping spacing, so as to ensure that the adsorption force always effectively acts on the circuit board. The clamping assembly 23 and the clamping mechanism 70 can be cooperated to clamp the opposite sides of the circuit board more accurately, avoiding the problems of adsorption deviation or unstable clamping, and improving the precision and stability of the positioning device for the circuit board. It should be noted that the structure of the clamping mechanism 70 is not limited in the present application, and the clamping mechanism 70 can be the same as or different from the structure of the clamping assembly 23.

[0070] In another specific example, the fixing device includes two oppositely arranged clamping mechanisms 70, which are arranged on opposite sides of the adsorption area 12 along a direction intersecting the preset direction, for clamping the circuit board on the adsorption area 12. Figure 1 and Figure 2 As shown in the figures, when the preset direction is the first direction F1, the direction intersecting the preset direction can be the second direction F2, and the two clamping mechanisms 70 are arranged on opposite sides of the adsorption area 12 along the second direction F2.

[0071] Among them, the position of at least one of the two clamping mechanisms 70 along the second direction F2 is adjustable. Specifically, the position of one of the clamping mechanisms 70 is fixed relative to the adsorption platform 10, and the position of the other clamping mechanism 70 is adjustable relative to the adsorption platform 10 along the second direction F2. By adjusting the position of the clamping mechanism 70 with adjustable position along the second direction F2, the clamping spacing of the two clamping mechanisms 70 along the second direction F2 is adjusted. Alternatively, the positions of the two clamping mechanisms 70 relative to the adsorption platform 10 along the second direction F2 are both adjustable. By adjusting the position of one or both clamping mechanisms 70 along the second direction F2, the clamping spacing of the two clamping mechanisms 70 along the second direction F2 is adjusted.

[0072] In combination with the drawings Figure 3 And Figure 4 As can be understood, the winding assembly 22 comprises a fixed seat 222 and a winding shaft 221. The fixed seat 222 is arranged at one end of the adsorption platform 10, and the winding shaft 221 is rotatable relative to the fixed seat 222 to wind or release the cover 21.

[0073] Exemplarily, the fixed seat 222 is arranged at one end of the adsorption platform 10 along the first direction F1, and the axial direction of the winding shaft 221 is perpendicular to the first direction F1. The second end of the cover 21 is connected to the winding shaft 221.

[0074] The above technical solution provides a stable and reliable mounting basis for the winding shaft 221 by arranging the fixed seat 222 at one end of the adsorption platform 10, ensuring that the winding shaft 221 can rotate normally. The rotatable connection between the winding shaft 221 and the fixed seat 222 enables the winding shaft 221 to rotate flexibly, thereby realizing the winding and releasing of the cover 21, and achieving the orderly storage and release of the cover 21 by winding and releasing the cover 21 through the winding shaft 221 of the winding assembly 22. This avoids the phenomenon of wrinkles, stacking or slackness of the cover 21 during adjustment, and ensures that the cover 21 always tightly covers the adsorption holes 11, effectively preventing vacuum leakage and ensuring the stability and reliability of the adsorption force of the adsorption area 12.

[0075] Optionally, the number of fixed seats 222 is two, and the two fixed seats 222 are arranged in the axial direction of the winding shaft 221. The two ends of the winding shaft 221 are rotatably connected to the two fixed seats 222, respectively. Specifically, the fixed seat 222 is provided with a first connecting hole, one end of the winding shaft 221 is movably arranged in the first connecting hole of one of the fixed seats 222, and the other end of the winding shaft 221 is movably arranged in the first connecting hole of the other fixed seat 222, so that the winding shaft 221 can rotate around its own axis relative to the fixed seat 222.

[0076] Specifically, when the clamping assembly 23 is adjusted along the preset direction, the first end of the cover 21 is moved synchronously, and the winding shaft 221 winds or releases the cover 21 according to the movement of the cover 21, so that the cover 21 covers the adsorption holes 11 that exceed the size of the circuit board along the preset direction.

[0077] Exemplarily, when the clamping assembly 23 moves away from the winding assembly 22 along the first direction F1 and approaches the center of the adsorption surface, the cover 21 is pulled, the winding shaft 221 rotates in the forward direction and releases the cover 21, so that the cover 21 covers more adsorption holes 11 to reduce the adsorption area 12; when the clamping assembly 23 moves reversely, the winding shaft 221 rotates reversely to wind the excess cover 21 back to the winding assembly 22, so that the covered adsorption holes 11 are exposed to expand the adsorption area 12.

[0078] In combination with the drawings Figures 4 to 6 It can be understood that the winding assembly 22 further comprises a reset member 223, one end of the reset member 223 is connected with the winding shaft 221, and the other end of the reset member 223 is connected with the fixed seat 222, and the reset member 223 is used to provide a restoring force for the winding shaft 221 to wind the cover member 21.

[0079] Exemplarily, when the first end of the cover member 21 moves away from the winding shaft 221, the winding shaft 221 is rotated by the tension of the cover member 21, and the reset member 223 stores energy. When the first end of the cover member 21 moves close to the winding shaft 221 (in the opposite direction), the reset member 223 releases the stored energy and drives the winding shaft 221 to automatically wind the cover member 21, so as to ensure that the cover member 21 is always closely attached to the adsorption platform 10, and avoid the problems of sealing failure of the adsorption hole 11 or adjustment jam caused by the relaxation of the cover member 21.

[0080] The above technical solution can maintain the cover member 21 in a tight state, so that the cover member 21 is always closely attached to the adsorption platform 10, effectively eliminates the problems of wrinkles or relaxation, ensures the sealing performance of the covered adsorption hole 11, prevents vacuum leakage, and further ensures the uniformity and stability of the adsorption force of the adsorption area 12.

[0081] Optionally, the reset member 223 can be, but is not limited to, a torsion spring or a coil spring.

[0082] Taking the reset member 223 as a coil spring for example, when the first end of the cover member 21 moves close to or away from the winding shaft 221, the winding shaft 221 rotates with the tension of the cover member 21, and the coil spring stores or releases energy in the process of rotation, so as to provide a stable restoring force for the winding shaft 221, and ensure that the winding shaft 221 automatically winds or releases the cover member 21.

[0083] Further, when the clamping assembly 23 pulls the cover member 21 to gradually expand, the cover member 21 drives the winding shaft 221 to rotate, the winding shaft 221 drives the coil spring to open when rotating, and the coil spring stores elastic potential energy; when the clamping assembly 23 drives the cover member 21 to move in the opposite direction of the expansion direction, the coil spring releases the elastic potential energy and drives the winding shaft 221 to rotate in the opposite direction, and the winding shaft 221 gradually winds the cover member 21.

[0084] The technical scheme above, when the clamping assembly 23 drives the cover 21 to move and expose more adsorption holes 11, the reset member 223 drives the winding shaft 221 to automatically wind the cover 21, without additional manual operation of the cover 21. In other words, when processing different circuit boards, only the position of the clamping assembly 23 along the preset direction of the clamping mechanism 70 needs to be adjusted, and the cover 21 is synchronously stretched and retracted under the cooperation of the clamping assembly 23 of the clamping mechanism 70 and the reset member 223, so that the cover 21 covers the adsorption holes 11 exceeding the size of the circuit board along the preset direction. Therefore, it is not necessary to paste adhesive tape or cut a flexible film of a preset size to cover the adsorption holes 11 exceeding the size of the circuit board, and it is also not necessary to set a detector to detect the sealing performance of the cover 21 and the adsorption platform 10. The covering effect is good, and the cost is low.

[0085] In combination with the accompanying drawings Figure 6 and Figure 7 It can be understood that the winding assembly 22 further comprises a support member 224, the support member 224 is connected with the fixed seat 222, the support member 224 is parallel to the winding shaft 221, the support member 224 is provided with a first clamping groove 2241, and the first clamping groove 2241 is arranged on the circumferential side wall of the support member 224. The winding shaft 221 is provided with a second clamping groove 2211, and the second clamping groove 2211 is arranged on the circumferential side wall of one end of the winding shaft 221 close to the support member 224. The reset member 223 is sleeved on the winding shaft 221, one end of the reset member 223 is clamped into the first clamping groove 2241, and the other end of the reset member 223 is clamped into the second clamping groove 2211, that is, the reset member 223 is connected with the fixed seat 222 through the support member 224.

[0086] The technical scheme above, by sleeving the reset member 223 on the winding shaft 221, and clamping the two ends of the reset member 223 into the first clamping groove 2241 and the second clamping groove 2211 respectively, the reliable connection of the reset member 223 with the support member 224 and the winding shaft 221 is realized, so that the reset member 223 can stably play a role in the rotating process of the winding shaft 221, without displacement or falling off, and the reliability of the winding assembly 22 is ensured.

[0087] It should be noted that, based on the rotatable connection of the two ends of the winding shaft 221 with the two fixed seats 222, the number of the reset members 223 can be two, one of the reset members 223 is connected with one of the fixed seats 222 and one end of the winding shaft 221, and the other end of the reset member 223 is connected with the other fixed seat 222 and the other end of the winding shaft 221, and the two reset members 223 provide stable restoring force for the winding shaft 221. In addition, the number of the support members 224 is equal to the number of the reset members 223, that is, when the number of the reset members 223 is two, the number of the support members 224 is also two, and one end of the two reset members 223 is clamped into the first clamping groove 2241 of the two support members 224 respectively.

[0088] It can be understood that the rotating driving source can be used to replace the reset elastic member, the rotating driving source is connected with the winding shaft 221, and the rotating driving source is used to drive the winding shaft 221 to rotate automatically. Alternatively, the rotating driving source can be a motor or a rotary cylinder. Alternatively, the winding shaft 221 can be manually rotated to roll up the cover member. In addition, when the cover member 21 is replaced by a shielding plate or a hard diaphragm, the cover member 21 is directly driven to reciprocate along the first direction F1 by the position-adjustable clamping mechanism 70, and the reset mechanism does not need to be arranged.

[0089] The accompanying drawings are combined Figures 3 to 5 It can be understood that the rolling-up assembly 22 further comprises a guide shaft 225, the guide shaft 225 is connected with the fixed seat 222, the axial direction of the guide shaft 225 is parallel to the axial direction of the winding shaft 221, the guide shaft 225 is arranged on the side of the winding shaft 221 close to the adsorption surface, and the guide shaft 225 is supported between the adsorption platform 10 and the cover member 21.

[0090] The above technical scheme, by stably connecting the guide shaft 225 with the fixed seat 222, and the axial direction of the guide shaft 225 is parallel to the axial direction of the winding shaft 221, and the guide shaft 225 is supported between the adsorption platform 10 and the cover member 21, to provide stable guide support for the movement of the cover member 21, to guide the cover member 21 to move stably, and effectively avoid the cover member 21 from being damaged due to scratching the adsorption platform 10.

[0091] The accompanying drawings are combined Figure 2 And Figure 3 It can be understood that the cover member 21 is a flexible film. Alternatively, the cover member 21 can be, but is not limited to, a high polymer thin film, for example, a polyester film and a polyurethane film.

[0092] The above technical scheme, by using the flexible film as the cover member 21, the flexible film material has good flexibility and adhesion, can tightly cover the surface of the adsorption platform 10, ensures the sealing effect of the adsorption hole 11 in the covered area, avoids vacuum leakage caused by poor covering, and ensures the stability of the adsorption force of the adsorption area 12.

[0093] Secondly, the flexible film is light and thin in quality, and has smaller resistance when moving synchronously with the clamping assembly 23. The clamping interval between the clamping assemblies 23 or the clamping interval between the clamping assembly 23 and the clamping mechanism 70 can be adjusted, and the linkage with the adjustment of the adsorption area 12 is more smooth and accurate, and the jamming or position deviation in the adjustment process is reduced.

[0094] It can be understood that the flexible film can also be replaced by a shielding plate or a hard film, and the shielding plate or the hard film covers part of the adsorption platform 10 to cover the adsorption holes 11 in the corresponding area. The cover 21 is a shielding strip, and the position-adjustable clamping assembly is connected with a plurality of shielding strips distributed along the second direction F2, and each shielding strip corresponds to at least one column of adsorption holes 11.

[0095] The accompanying drawings are combined with the Figure 8 It can be understood that the clamping assembly 23 includes a rotating shaft 30, a clamping piece 40, and a mounting seat 60, the mounting seat 60 is movably arranged on the adsorption platform 10 along a preset direction (for example, the first direction F1 shown in the drawings), the rotating shaft 30 is parallel to the second direction F2, the second direction F2 is perpendicular to the first direction F1, the rotating shaft 30 is rotatably connected with the mounting seat 60, so that the rotating shaft 30 can rotate relative to the mounting seat 60 around its own axis. The clamping piece 40 is arranged on the rotating shaft 30, and the rotating shaft 30 is connected with the first end of the cover 21, and the rotating shaft 30 drives the clamping piece to lift or press down relative to the adsorption surface when rotating. Figure 8

[0096] When the rotating shaft 30 rotates relative to the mounting seat 60 around its own axis, the clamping piece 40 rotates synchronously with the rotating shaft 30, so that the clamping piece 40 approaches or moves away from the adsorption area 12. Specifically, when the clamping piece 40 rotates with the rotating shaft 30 and approaches the adsorption area 12, the clamping piece 40 presses down to press the circuit board tightly on the adsorption area 12, that is, the clamping piece 40 cooperates with the adsorption area 12 to clamp the circuit board. Figure 8 When the clamping piece 40 rotates with the rotating shaft 30 and moves away from the adsorption area 12, the clamping piece 40 lifts up to release the circuit board. Figure 10 .

[0097] The above technical scheme drives the clamping piece 40 to realize the lifting or pressing action through the rotation of the rotating shaft 30, which is simple in structure and stable in action, so that the clamping piece 40 can accurately act on the edge of the circuit board, and the clamping piece 40 can completely separate from above the circuit board when released, without interfering with the taking and placing operation of the circuit board. The mounting seat 60 provides a basic support for the rotating shaft 30, and by movably arranging the mounting seat 60 on the adsorption platform 10 along a preset direction, the position of the mounting seat 60 on the adsorption platform 10 is changed by moving the mounting seat 60 along the preset direction, so as to realize flexible adjustment of the position of the clamping assembly 23 on the adsorption platform 10. By connecting the rotating shaft 30 of the clamping assembly 23 with the first end of the cover 21, when the mounting seat 60 drives the rotating shaft 30 to move, the rotating shaft 30 drives the cover 21 to move synchronously, and the adjustment of the adsorption area 12 and the adjustment of the position of the clamping assembly 23 on the adsorption platform 10 are realized synchronously.

[0098] Optionally, the fixing seat 222 is movably arranged on the upper surface of the adsorption platform 10.

[0099] The accompanying drawings are combined with the​Figure 8 and Figure 9 It can be understood that, in the case that the clamping assembly 23 comprises the mounting seat 60, the adsorption platform 10 is provided with a plurality of first mounting positions 13, the plurality of first mounting positions 13 are spaced apart along the preset direction, and the mounting seat 60 can be selectively arranged at one of the plurality of first mounting positions 13, so that the mounting seat 60 is adjustably arranged on the adsorption platform 10.

[0100] Exemplarily, the first mounting position 13 can be a first mounting hole formed in the adsorption platform 10, and the mounting seat 60 is provided with a protruding portion matched with the first mounting position 13. The protruding portion is inserted into different first mounting positions 13 to fix the mounting seat 60 at different positions on the adsorption platform 10, so that the clamping assembly 23 is adjustably arranged on the adsorption platform 10.

[0101] In another example, the first mounting position 13 is a first mounting hole formed in the adsorption platform 10, and the mounting seat 60 is provided with a first assembly hole. A first fastener is inserted into the first assembly hole and different first mounting positions 13 to fix the mounting seat 60 at different positions on the adsorption platform 10, so that the clamping assembly 23 is adjustably arranged on the adsorption platform 10. The first fastener can be, but is not limited to, a screw or a bolt, and the number of first assembly holes can be one or more. When the mounting seat 60 is provided with a plurality of first assembly holes, the number of first mounting positions 13 is greater than the number of first assembly holes.

[0102] Alternatively, the edge of the adsorption platform 10 is provided with a first rack, the length direction of the first rack is consistent with the preset direction, the mounting seat 60 is provided with a first gear which can rotate, the first gear is engaged with the first rack, and when the first gear rotates, the mounting seat 60 is driven to move along the first direction F1 to change the position of the mounting seat 60 on the adsorption platform 10. Alternatively, the mounting seat 60 is slidingly connected with the edge of the adsorption platform 10 along the preset direction, and the mounting seat 60 and the adsorption platform 10 have a preset friction force. A preset external force needs to be applied to the mounting seat 60 to drive the mounting seat 60 to move along the first direction F1 to change the position of the mounting seat 60 on the adsorption platform 10. Alternatively, the mounting seat 60 is slidingly arranged on the adsorption platform 10 along the first direction F1, and a first power assembly is arranged on the adsorption platform 10. The first power assembly is connected with the mounting seat 60, and the first power assembly drives the mounting seat 60 to reciprocate along the first direction F1 to automatically adjust the position of the mounting seat 60.

[0103] Optionally, the clamping assembly comprises two mounting seats 60, the two mounting seats 60 are arranged along the axial direction of the rotating shaft 30 (such as the first direction F1), and the two mounting seats 60 are arranged on the adsorption platform 10. Figure 8The second direction F2 shown is spaced apart, and the two ends of the rotating shaft 30 are rotatably connected with the two mounting seats 60 respectively. The rotating shaft 30 is supported by the two mounting seats 60, effectively ensuring the stability of the rotating shaft 30 when rotating.

[0104] Specifically, the mounting seat 60 is provided with a second connecting hole, one end of the rotating shaft 30 movably penetrates the second connecting hole of one of the mounting seats 60, and the other end of the rotating shaft 30 movably penetrates the second connecting hole of the other mounting seat 60, so that the rotating shaft 30 can rotate around its own axis relative to the mounting seat 60.

[0105] In combination with the accompanying Figure 8 and Figure 10 It can be understood that the clamping assembly 23 also includes a rotating drive 50 movably arranged on the adsorption platform 10 in a predetermined direction, and the rotating drive 50 is connected with the rotating shaft 30. The rotating drive 50 is used to drive the rotating shaft 30 to rotate around its own axis relative to the adsorption platform 10, thereby driving the clamping piece 40 to lift or press down.

[0106] The above technical scheme automatically rotates the rotating shaft 30 and the clamping piece 40 through the rotating drive 50, without the need for manual operation, which is helpful to reduce the labor intensity, and avoids the problems of uneven clamping force and action lag caused by manual operation. By movably arranging the rotating drive 50 of the position-adjustable clamping assembly 23 on the adsorption platform 10 in a predetermined direction, the position of the rotating drive 50 can be flexibly adjusted according to the different sizes of the circuit board.

[0107] Alternatively, when the rotating shaft 30 is rotatably connected with the fixed seat 222, the rotating shaft 30 can also be manually rotated to realize the lifting or pressing action of the clamping piece 40.

[0108] In combination with the accompanying Figure 9 and Figure 10 It can be understood that in the case where the clamping assembly 23 includes the rotating drive 50, the adsorption platform 10 is provided with a plurality of second mounting positions 14, the plurality of second mounting positions 14 are located on the axial side of the adsorption platform 10 and are spaced apart along the predetermined direction, and the rotating drive 50 is selectively arranged in one of the plurality of second mounting positions 14, so that the rotating drive 50 is movably arranged on the adsorption platform 10.

[0109] Exemplarily, the second mounting position 14 can be a second mounting hole opened in the circumferential side of the adsorption platform 10, and the rotating driving member 50 is provided with a second protruding part matched with the second mounting position 14. The rotating driving member 50 is fixed at different positions on the adsorption platform 10 by inserting the second protruding part into different second mounting positions 14, so as to adjustably arrange the rotating driving member 50 on the adsorption platform 10.

[0110] In another example, the second mounting position 14 is a second mounting hole opened in the circumferential side of the adsorption platform 10, and the rotating driving member 50 is provided with a second assembly hole. The rotating driving member 50 is fixed at different positions on the adsorption platform 10 by inserting a second fastener into the second assembly hole and different second mounting positions 14, so as to adjustably arrange the rotating driving member 50 on the adsorption platform 10. The second fastener can be, but is not limited to, a screw or a bolt, and the number of the second assembly hole can be one or more. When the rotating driving member 50 is provided with a plurality of second assembly holes, the number of the second mounting position 14 is greater than the number of the second assembly hole.

[0111] Alternatively, the edge of the adsorption platform 10 is provided with a second rack, the length direction of the second rack is consistent with the preset direction, the rotating driving member 50 is provided with a second gear wheel rotatable, the second gear wheel is engaged with the second rack, and the second gear wheel drives the rotating driving member 50 to move along the preset direction when rotating, so as to change the position of the rotating driving member 50 on the adsorption platform 10. Alternatively, the rotating driving member 50 is slidably connected with the edge of the adsorption platform 10 along the preset direction, and the rotating driving member 50 and the adsorption platform 10 have a preset friction force. A preset external force needs to be applied to the rotating driving member 50 to drive the rotating driving member 50 to move along the preset direction, so as to change the position of the rotating driving member 50 on the adsorption platform 10. Alternatively, the rotating driving member 50 is slidably arranged on the adsorption platform 10 along the preset direction, and a second power assembly is arranged on the adsorption platform 10. The second power assembly is connected with the rotating driving member 50, and drives the rotating driving member 50 to reciprocate along the preset direction by the second power assembly, so as to automatically adjust the position of the rotating driving member 50.

[0112] In combination with the accompanying drawings, Figure 9 and Figure 10 It can be understood that the adsorption platform 10 is provided with a mounting groove 15, the length direction of the mounting groove 15 is consistent with the preset direction, the rotating driving member 50 is at least partially slidably arranged in the mounting groove 15, and the second mounting position 14 is arranged on the inner wall of the mounting groove 15.

[0113] Optionally, the second mounting position 14 is embedded with a nut, and the second fastener is a bolt, which is inserted into the second mounting position 14 and threadedly connected with the nut. When the clamping interval of the two clamping mechanisms 70 in the first direction F1 needs to be adjusted, the bolt is loosened, the rotary driving member 50 is moved in a preset direction or a direction opposite to the preset direction, the position of the rotary driving member 50 in the mounting groove 15 is changed, and after the rotary driving member 50 is moved to a preset position, the bolt is tightened to fix the rotary driving member 50 at the preset position in the mounting groove 15.

[0114] In combination with the accompanying drawings Figure 10 and Figure 11 It can be understood that the rotary driving member 50 includes a mounting portion 51, a driving source 52, a sliding block 53, a connecting rod 54, and a swing portion 55. The mounting portion 51 of the position-adjustable rotary driving member 50 is movably arranged on the adsorption platform 10 in the first direction F1. The driving source 52 is arranged on the mounting portion 51. The sliding block 53 is slidingly connected with the mounting portion 51 in the first direction F1. The sliding block 53 is fixedly connected with the output shaft of the driving source 52. The two ends of the connecting rod 54 are respectively hingedly connected with the sliding block 53 and the swing portion 55. The swing portion 55 is fixedly connected with the rotating shaft 30.

[0115] Specifically, part of the mounting portion 51 is slidingly accommodated in the mounting groove 15.

[0116] Specifically, one end of the connecting rod 54 is hingedly connected with the sliding block 53 through a pin shaft. The other end of the connecting rod 54 is hingedly connected with one end of the swing portion 55 through a pin shaft. The other end of the swing portion 55 is fixedly sleeved on one end of the rotating shaft 30.

[0117] When the driving source 52 drives the sliding block 53 to translate in the first direction F1 or a direction opposite to the first direction F1, the sliding block 53 drives the swing portion 55 to swing around the axis of the rotating shaft 30 through the connecting rod 54, and then the swing portion 55 drives the rotating shaft 30 to synchronously rotate around the axis of the rotating shaft 30, so as to realize the lifting or pressing action of the clamping piece 40.

[0118] In the above technical solution, when the driving source 52 drives the sliding block 53 to make linear motion in a preset direction, the linear motion is converted into swinging motion of the swing portion 55 through the connecting rod 54, and then the swinging motion is converted into rotating motion of the rotating shaft 30 through the swing portion 55, so as to realize the lifting or pressing action of the clamping piece 40. The transmission efficiency is high and there is no risk of slipping, which can ensure that the power of the driving source 52 is stably transmitted to the rotating shaft 30, and avoid the lag or failure of the clamping action.

[0119] Optionally, the driving source 52 can be, but is not limited to, an air cylinder.

[0120] It is worth mentioning that, in the case that the clamping mechanism 70 and the clamping assembly 23 have the same structure, for the clamping mechanism 70 fixed on the adsorption platform 10, the mounting seat and / or the rotary driving member of the clamping mechanism 70 are fixedly arranged on the adsorption platform 10; or, the mounting seat and / or the rotary driving member of the clamping mechanism 70 are fixedly arranged on an external component, which can be a workbench or a rack for carrying the adsorption platform 10, etc. Alternatively, when the mounting seat and / or the rotary driving member of the clamping mechanism 70 are fixedly arranged on the adsorption platform 10, the mounting seat can be screwed, welded or integrally formed with the edge of the adsorption platform 10, and the rotary driving member can be screwed or welded with the edge of the adsorption platform 10, etc.

[0121] The application also provides a plate processing equipment, which comprises a rack, a processing device and the positioning device of any one of the above embodiments. The positioning device and the processing device are arranged on the rack, and the processing device is used for processing the plate placed on the adsorption platform of the positioning device.

[0122] When the plate is a circuit board, the plate processing equipment can be, but is not limited to, a laser drilling equipment, a laser cutting equipment, an Automated Optical Inspection (AOI) equipment, a Laser Direct Imaging (LDI) equipment, an inkjet printing equipment, etc.

[0123] The plate processing equipment provided by the application adopts the above positioning device, thereby having all the beneficial effects of the positioning device.

[0124] The above only describes the preferred embodiments of the application and is not used to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A positioning device, characterized in that, include: An adsorption platform having an adsorption surface with multiple adsorption holes; A covering mechanism, comprising a covering member and a winding assembly, wherein the covering member is used to selectively cover the adsorption holes to adjust the range of the adsorption area of ​​the adsorption surface, the covering member having a first end and a second end opposite to each other, and the winding assembly is disposed at one end of the adsorption platform and connected to the second end, the winding assembly being used to wind up the covering member. Specifically, when the first end is far from the winding assembly, the number of adsorption holes covered by the cover increases to reduce the range of the adsorption area; when the first end is close to the winding assembly, the number of adsorption holes covered by the cover decreases to increase the range of the adsorption area.

2. The positioning device as described in claim 1, characterized in that, The winding assembly includes a fixed base and a winding shaft. The fixed base is disposed at one end of the adsorption platform, and the winding shaft is rotatably connected to the fixed base. The second end is connected to the winding shaft.

3. The positioning device as described in claim 2, characterized in that, The winding assembly further includes a reset member, which is connected to the winding shaft and the fixing seat respectively. The reset member is used to provide a restoring force for the winding shaft to wind up the cover.

4. The positioning device as described in claim 3, characterized in that, The winding assembly further includes a support member connected to the fixed base. The support member has a first slot, and the winding shaft has a second slot. The reset member is sleeved on the winding shaft, with one end of the reset member inserted into the first slot and the other end of the reset member inserted into the second slot.

5. The positioning device as described in claim 2, characterized in that, The winding assembly further includes a guide shaft, which is rotatably connected to the fixed base. The axial direction of the guide shaft is parallel to the axial direction of the winding shaft. The guide shaft is located on the side of the winding shaft near the adsorption surface and is supported between the adsorption platform and the cover.

6. The positioning device according to any one of claims 1 to 5, characterized in that, The covering is a flexible membrane.

7. The positioning device according to any one of claims 1 to 5, characterized in that, The covering mechanism further includes a clamping component, which is adjustablely disposed on the adsorption platform along a preset direction. The clamping component is connected to the first end of the covering member so that when the clamping component adjusts its position along the preset direction, it drives the first end of the covering member away from or closer to the winding component.

8. The positioning device as described in claim 7, characterized in that, The clamping assembly includes a rotating shaft and a clamping member. The clamping member is disposed on the rotating shaft. When the rotating shaft rotates, it causes the clamping member to be lifted or pressed down relative to the adsorption surface. The rotating shaft is connected to the first end of the covering member. The clamping assembly further includes a mounting base and / or a rotary drive component. The mounting base is movably disposed on the adsorption platform along the preset direction, and the rotating shaft is rotatably connected to the mounting base. The rotary drive component is movably disposed on the adsorption platform along the preset direction, and the rotary drive component is connected to the rotating shaft. The rotary drive component is used to drive the rotating shaft to rotate relative to the adsorption platform.

9. The positioning device as described in claim 8, characterized in that, When the clamping assembly further includes the mounting base, the adsorption platform is provided with a plurality of first mounting positions, which are distributed at intervals along the preset direction. The mounting base can be selectively disposed at one of the first mounting positions so that the mounting base can be adjusted and disposed on the adsorption platform. When the clamping assembly further includes the rotary drive, the adsorption platform is provided with a plurality of second mounting positions, which are spaced apart along the preset direction. The rotary drive can be selectively disposed in one of the second mounting positions so that the rotary drive can be adjusted and disposed on the adsorption platform.

10. The positioning device as described in claim 8, characterized in that, The rotary drive component includes: The mounting part is movably disposed on the adsorption platform along the preset direction; A drive source, wherein the drive source is disposed on the mounting portion; A slider, which is slidably connected to the mounting part and fixedly connected to the drive source; A connecting rod, one end of which is hinged to the slider; and A swinging part is fixedly connected to the rotating shaft and hinged to the other end of the connecting rod; wherein... When the drive source drives the slider to slide along the preset direction, the slider drives the swinging part to swing around the axis of the rotating shaft through the connecting rod, so that the swinging part drives the rotating shaft to rotate.

11. The positioning device as described in claim 7, characterized in that, The positioning device further includes a clamping mechanism, which is disposed on the adsorption platform. The clamping mechanism and the clamping assembly clamp different sides of the plate placed on the adsorption surface.

12. A sheet metal processing equipment, characterized in that, It includes a frame, a processing device, and a positioning device as described in any one of claims 1-11, wherein the positioning device and the processing device are both disposed on the frame, and the processing device is used to process the sheet material placed on the adsorption platform of the positioning device.

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