Pressing device and pressing method

Abstract

A pressing device comprises an objective table and a plurality of pressing mechanisms. The objective table is used for bearing a to-be-pressed piece; the multiple pressing mechanisms surround the objective table, each pressing mechanism comprises a base plate, a positioning assembly, a pressing plate and a driving assembly, the positioning assemblies are arranged on the base plates, and the positioning assemblies are used for abutting against the edges of the to-be-pressed pieces; the driving assembly is arranged on the base plate and connected with the pressing plate, and the driving assembly is used for driving the pressing plate to rotate so that the pressing plate can press the non-processing area of the part to be pressed. The invention further provides a pressing method for pressing the to-be-pressed part through the pressing device. The pressing plate is pressed in the non-processing area of the to-be-pressed piece, so that the pressing plate is prevented from making contact with the processing area, and pressing marks and surface pollution are effectively prevented from being generated in the processing area.

Description

Technical Field

[0001] The present application relates to the technical field of pressing equipment, and in particular to a pressing device and a pressing method. Background Art

[0002] During the manufacturing process, when a workpiece is severely deformed and cannot be vacuumed, a large-area pressing device is often installed on the workpiece to flatten it before vacuuming. However, this method is prone to causing pressure marks and surface contamination in the workpiece's processing area when processing electronic products. Summary of the Invention

[0003] In view of this, it is necessary to provide a pressing device that can prevent pressing marks and surface contamination in the process area to solve the above problems.

[0004] A pressing device includes a platform and multiple pressing mechanisms. The platform is used to carry a workpiece to be pressed; multiple pressing mechanisms surround the platform, each of which includes a base plate, a positioning assembly, a pressing plate, and a drive assembly. The positioning assembly is disposed on the base plate and is used to abut against the edge of the workpiece to be pressed; the drive assembly is disposed on the base plate and connected to the pressing plate, and is used to drive the pressing plate to rotate so that the pressing plate presses the non-process area of ​​the workpiece to be pressed.

[0005] In some possible embodiments of the present application, a plurality of air holes are provided on the loading platform, and the pressing device further comprises a vacuum adsorption component, which is connected to the air holes and is used to generate negative pressure in the air holes to adsorb the workpiece to be pressed.

[0006] In some possible embodiments of the present application, the worktable is divided into an inner area and an outer area, the outer area surrounds the inner area, the inner area of ​​the worktable is used to support the inner side of the workpiece to be pressed, and the outer area is used to support the outer periphery of the workpiece to be pressed; the multiple pores include a first pore group and a second pore group, the first pore group is located in the inner area, and the second pore group is located in the outer area; the diameter of the pores of the second pore group is smaller than the diameter of the pores of the first pore group, and the density of the second pore group is smaller than the density of the first pore group.

[0007] In some possible embodiments of the present application, the driving assembly includes a rotating shaft and a first driving member, one end of the pressing plate is fixed on the rotating shaft, the first driving member is arranged on the base plate, and the first driving member is used to drive the rotating shaft to rotate so as to drive the pressing plate to rotate with the rotating shaft.

[0008] In some possible embodiments of the present application, the first driving member includes a driving wheel, a driven wheel and a transmission belt, the transmission belt is sleeved on the outer circumference of the driving wheel and the driven wheel, so that the driving wheel and the driven wheel are connected in transmission; the rotating shaft and the driven wheel are fixedly connected.

[0009] In some possible embodiments of the present application, the pressing mechanism further includes a safety confirmation component, which includes a light-shielding plate and a sensor; the light-shielding plate is fixed to one end of the rotating shaft, and a notch is provided on the light-shielding plate; the sensor is arranged on the substrate; the sensor is used to emit light toward the light-shielding plate, and to sense light reflected by the light-shielding plate.

[0010] In some possible embodiments of the present application, the positioning assembly includes a second driving member and a positioning member, the second driving member is connected to the positioning member, the second driving member is arranged on the substrate, and the second driving member is used to drive the positioning member to move and abut against the member to be pressed.

[0011] In some possible embodiments of the present application, an opening is provided on the pressing plate, the opening is formed by an inward depression of the side surface of the pressing plate, and passes through two opposite surfaces of the pressing plate; the positioning member can be inserted into the opening.

[0012] In some possible embodiments of the present application, the pressing device also includes a base and a sliding assembly, the sliding assembly includes a slider and a slide rail, the slider is fixed to the base, the slide rail is fixed to the base, and the slider and the slide rail are slidably connected to enable the pressing mechanism to be slidably connected to the base.

[0013] A pressing method for pressing the workpiece to be pressed by the pressing device includes the following steps: placing the workpiece to be pressed on the loading platform; turning on the driving component, and the driving component driving the pressing plate to rotate toward the loading platform; turning on the positioning component, and the positioning component moving toward the workpiece to be pressed until the positioning component abuts against the edge of the workpiece to be pressed; turning on the driving component again, and the driving component driving the pressing plate to rotate further toward the loading platform to press the non-process area of ​​the workpiece to be pressed.

[0014] The pressing plate is used to press the non-process area of ​​the workpiece to be pressed, avoiding contact with the process area, and effectively preventing pressing marks and surface contamination in the process area; a rotary drive method is used to achieve height adjustment of the pressing plate. Compared with traditional cylinders (fixed stroke) and linear motors (occupying a large space), it can meet multiple subtle height requirements in a small space, greatly saving installation space; the multi-stage pressing depth and action timing of the pressing plate can be flexibly set to adapt to the pressing requirements of different workpieces to be pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of the pressing device provided in an embodiment of the present application.

[0016] Figure 2 for Figure 1 A schematic top view of the pressing device is shown.

[0017] Figure 3 A schematic top view of a pressing device provided in an embodiment of the present application pressing a workpiece to be pressed.

[0018] Figure 4 A schematic structural diagram of a partial area of ​​a pressing device provided in an embodiment of the present application.

[0019] Figure 5 A schematic structural diagram of a partial area of ​​a pressing device provided in an embodiment of the present application.

[0020] Figure 6 for Figure 1 The shown figure is a top view of a loading platform in a pressing device carrying a workpiece to be pressed.

[0021] Figures 7 to 10 Schematic diagram of the process of pressing a workpiece by the pressing device provided in an embodiment of the present application.

[0022] Description of main component symbols Pressing device: 100; stage: 10; air hole: 11; first air hole group: 111; second air hole group: 112; inner area: 12; outer peripheral area: 13; avoidance hole: 14; pressing mechanism: 20; base plate: 21; through hole: 211; positioning assembly: 22; second driving member: 221; positioning member: 222; pressing plate: 23; first plate: 231; second plate: 232; reinforcement plate: 233; opening: 234; driving assembly: 24; support member: 241; rotating shaft : 242; first driving member: 243; driving wheel: 2431; driven wheel: 2432; transmission belt: 2433; blocking wheel: 2434; safety confirmation component: 25; light shielding plate: 251; notch: 2511; sensor: 252; vacuum adsorption component: 26; base: 30; sliding component: 40; slider: 41; slide rail: 42; part to be pressed: 50; process area: 51; non-process area: 52; first direction: L1; second direction: L2; third direction: L3.

[0023] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth to facilitate a full understanding of the present application. The embodiments described are only a part of the embodiments of the present application, rather than all of the embodiments.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes all and any combinations of one or more of the associated listed items.

[0026] In the various embodiments of the present application, for ease of description and not limitation, the term "connection" used in the patent specification and claims of the present application is not limited to physical or mechanical connections, whether direct or indirect. "Up," "down," "above," "below," "left," "right," etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0027] See also Figure 1 and Figure 2 , Figure 1 This is a schematic structural diagram of a pressing device 100 provided in an embodiment of the present application. Figure 2 for Figure 1 The pressing device 100 is shown in a top view. The pressing device 100 is used to press the deformed workpiece 50 to be pressed flat.

[0028] See also Figure 3 The workpiece 50 to be pressed includes a process area 51 and a non-process area 52, and the non-process area 52 surrounds the process area 51. In one embodiment, the projection of the workpiece 50 along one direction is a square, and the non-process area 52 is the four edge areas of the workpiece 50 to be pressed. The width of the non-process area 52 is approximately 3 mm to 5 mm.

[0029] The pressing apparatus 100 may include a stage 10 and a plurality of pressing mechanisms 20. The stage 10 is used to support the workpiece 50 to be pressed, and the pressing mechanisms 20 are used to press the non-processing area 52 to flatten the workpiece 50 to be pressed. In this embodiment, the pressing apparatus 100 includes four pressing mechanisms 20, which surround the stage 10 and operate independently of each other.

[0030] See also Figure 4 Each pressing mechanism 20 may include a base plate 21, a positioning assembly 22, a pressing plate 23, and a driving assembly 24. The positioning assembly 22 is disposed on the base plate 21 and is used to abut against the workpiece 50 to place the workpiece 50 in a suitable area of ​​the stage 10. The pressing plate 23 is used to press the non-processing area 52 of the workpiece 50. The driving assembly 24 is used to drive the pressing plate 23 to rotate to press the workpiece 50.

[0031] The substrate 21 is generally plate-shaped. For ease of explanation, the length direction of the substrate 21 of one of the pressing mechanisms 20 is defined as a first direction L1, the width direction of the substrate 21 is defined as a second direction L2, and the thickness direction of the substrate 21 is defined as a third direction L3. The first direction L1, the second direction L2, and the third direction L3 are perpendicular to each other.

[0032] The positioning assembly 22 is disposed on the substrate 21. When the workpiece 50 is placed on the stage 10, the positioning assembly 22 is used to position the workpiece 50 to ensure that the non-processing area 52 of the workpiece 50 can be pressed.

[0033] The positioning assembly 22 may include a second driving member 221 and a positioning member 222. The second driving member 221 is disposed on the base plate 21. The positioning member 222 is connected to the second driving member 221. The second driving member 221 is used to drive the positioning member 222 to move toward or away from the part to be pressed 50, so that the positioning member 222 adjusts the position of the part to be pressed 50. When a pressing operation is required, the second driving member 221 drives the positioning member 222 to move along the second direction L2 toward the part to be pressed 50 so that the positioning member 222 abuts against the edge of the part to be pressed 50. When the positioning members 222 of the four pressing mechanisms 20 all abut against the edge of the part to be pressed 50, the pressing part is constrained to a suitable position on the stage 10. After the pressing operation is completed, the second driving member 221 drives the positioning member 222 to move along the second direction L2 away from the pressing part to release the positioning effect on the pressing part. In some embodiments, the second driving member 221 may be a cylinder.

[0034] The pressing plate 23 is generally plate-shaped and can rotate about the first direction L1. One end of the pressing plate 23 is fixed to the driving assembly 24 , and the other end of the pressing plate 23 is used to press the non-processing area 52 of the workpiece 50 to be pressed.

[0035] The press plate 23 may include a first plate 231, a second plate 232, and a reinforcing plate 233. The reinforcing plate 233 is embedded between the first plate 231 and the second plate 232. The reinforcing plate 233 has a harder surface than the first plate 231 and the second plate 232. The reinforcing plate 233 also has a higher density than the first plate 231 and the second plate 232. The reinforcing plate 233 increases the strength of the press plate 23 while reducing its weight. In some embodiments, the first plate 231 and the second plate 232 are both made of aluminum alloy, while the reinforcing plate 233 is made of stainless steel.

[0036] The pressing plate 23 has an opening 234 formed by an inward depression in the side surface of the pressing plate 23 and extending through two opposing surfaces of the pressing plate 23. The positioning member 222 is disposed within the opening 234 and is movable within the opening 234 along the second direction L2. When the pressing plate 23 rotates toward the stage 10, the positioning member 222 can pass through the opening 234 to prevent interference between the pressing plate 23 and the positioning member 222.

[0037] The driving assembly 24 is provided on the base plate 21 and is connected to the pressing plate 23. The driving assembly 24 is used to drive the pressing plate 23 to rotate so that the pressing plate 23 presses the non-processing area 52 of the workpiece 50 to be pressed. The switching between different working heights of the pressing plate 23 along the third direction L3 is achieved by the rotation angle of the pressing plate 23. When it is necessary to press the workpiece 50 to be pressed, the driving assembly 24 drives the pressing plate 23 to rotate toward the workpiece 50 to be pressed, so that the pressing plate 23 presses the non-processing area 52 of the workpiece 50 to be pressed; when the pressing operation is completed, the driving assembly 24 drives the pressing plate 23 to rotate away from the workpiece 50 to be pressed, so that the pressing plate 23 is lifted up along the third direction L3.

[0038] The driving assembly 24 may include a support member 241, a rotating shaft 242, and a first driving member 243. The support member 241 is fixed on the substrate 21. In this embodiment, the driving assembly 24 includes two support members 241, and the two support members 241 are spaced apart along the first direction L1. The rotating shaft 242 is roughly rod-shaped, and the rotating shaft 242 is rotatably passed through the two support members 241 along the first direction L1. One end of the pressing plate 23 is fixed to the rotating shaft 242. The first driving member 243 is connected to the rotating shaft 242. The first driving member 243 is used to drive the rotating shaft 242 to rotate around the first direction L1, and then drive the pressing plate 23 to rotate around the first direction L1 along the rotating shaft 242. The end of the pressing plate 23 facing away from the rotating shaft 242 presses the non-processing area 52 of the part to be pressed 50.

[0039] The first driving member 243 includes a driving wheel 2431, a driven wheel 2432, and a transmission belt 2433. The transmission belt 2433 is sleeved around the outer circumferences of the driving wheel 2431 and the driven wheel 2432, thereby connecting the driving wheel 2431 and the driven wheel 2432. The rotating shaft 242 is fixedly connected to the driven wheel 2432. The driving wheel 2431 can drive the driven wheel 2432 to rotate via the transmission belt 2433, thereby driving the rotating shaft 242 to rotate.

[0040] In some embodiments, the outer circumferences of the driving wheel 2431 and the driven wheel 2432 are each provided with gear teeth, and the inner circumference of the transmission belt 2433 is correspondingly provided with meshing teeth. The gear teeth mate with the meshing teeth to form a meshing transmission. The precise meshing of the gear teeth and the meshing teeth effectively prevents relative slippage (i.e., slippage) between the driving wheel 2431, the driven wheel 2432, and the transmission belt 2433, ensuring the stability and accuracy of power transmission. This, in turn, ensures the precision of the drive assembly 24 driving the rotating shaft 242, making the rotation angle and position of the pressing plate 23 more reliably controlled, and meeting the device's requirements for high-precision control of the pressing action.

[0041] The base plate 21 is provided with a through hole 211. The driving wheel 2431 and the driven wheel 2432 are located on opposite sides of the base plate 21, and the transmission belt 2433 passes through the through hole 211. The driving assembly 24 also includes a blocking wheel 2434 fixed to the base plate 21. The blocking wheel 2434 abuts against the outer side of the transmission belt 2433 and causes the transmission belt 2433 to produce an inward concave deformation, thereby increasing the fit and contact pressure between the transmission belt 2433 and the driving wheel 2431 and the driven wheel 2432, reducing or avoiding transmission failures such as tooth jumping and slipping that may occur during the transmission process, thereby ensuring the accuracy, continuity, and reliability of power transmission between the driving wheel 2431 and the driven wheel 2432, and ensuring that the driving accuracy of the driving assembly 244 on the rotating shaft 242 is not affected by slack in the transmission system, thereby stably achieving precise motion control of the pressing plate 23.

[0042] See also Figure 5 The pressing mechanism 20 may further include a safety confirmation component 25, which is located on the side of the rotating shaft 242 away from the first driving member 243. The safety confirmation component 25 may include a light shielding plate 251 and a sensor 252. The light shielding plate 251 is fixed to one end of the rotating shaft 242, and can rotate synchronously with the rotation of the rotating shaft 242; a notch 2511 is formed on the light shielding plate 251. The sensor 252 is disposed on the substrate 21, and is spaced apart from the light shielding plate 251. The sensor 252 is configured to emit light toward the light shielding plate 251 and to sense light reflected by the light shielding plate 251. The sensor 252 may be a photoelectric sensor 252. When light passes through the gap 2511, the pressing mechanism 20 is at a safe angle, the pressing plate 23 is at a safe height, and the rotating shaft 242 can rotate normally; when the light is reflected by the shading plate 251, the pressing mechanism 20 is at an unsafe angle, the rotating shaft 242 will stop rotating further, and the pressing plate 23 will stop rotating further synchronously to prevent the pressing plate 23 from colliding with the worktable 10 due to further rotation.

[0043] See also Figure 6The stage 10 is provided with a plurality of air holes 11, and the pressing device 100 further includes a vacuum adsorption component 26, which is in communication with the plurality of air holes 11 and is used to generate negative pressure in the air holes 11 to adsorb the workpiece 50 to be pressed. While the pressing plate 23 is pressing the workpiece 50 to be pressed, the vacuum adsorption component 26 works to make the workpiece 50 to be pressed fit better on the stage 10, thereby improving the flattening effect. After the workpiece 50 to be pressed is pressed and adsorbed flat, the vacuum adsorption component 26 can continue to maintain the negative pressure, so that the workpiece 50 to be pressed is stably adsorbed on the stage 10, facilitating subsequent processing operations.

[0044] The stage 10 is divided into an inner area 12 and an outer area 13. The outer area 13 surrounds the inner area 12. The inner area 12 of the stage 10 is used to support the inner side of the workpiece 50 to be pressed, while the outer area 13 is used to support the outer periphery of the workpiece 50 to be pressed. The plurality of pores 11 include a first pore group 111 and a second pore group 112. The first pore group 111 is located in the inner area 12, and the second pore group 112 is located in the outer area 13. The diameter of the pores 11 in the second pore group 112 is smaller than that of the pores 11 in the first pore group 111, and the density of the second pore group 112 is lower than that of the first pore group 111. The pores 11 in the second pore group 112 can be arranged in multiple staggered rows or in a multi-row array.

[0045] For a severely deformed workpiece 50 to be pressed, the rebound force of the warping of the outer periphery of the workpiece 50 to be pressed will be greater than that of the undeformed inner area. If the diameter and density of the pores 11 in the inner area 12 and the outer peripheral area 13 of the stage 10 are the same, it will be difficult for the vacuum adsorption assembly 26 to cope with the excessive rebound force on the outer side of the workpiece 50 to be pressed, resulting in the workpiece 50 to be effectively adsorbed and bounced off. If pores 11 with larger diameters are provided in the outer peripheral area 13, the larger pores 11 are conducive to adsorbing the workpiece 50 to be pressed, but are likely to cause depressions to form in the area where the workpiece 50 to be pressed is adsorbed, affecting the subsequent process of the workpiece 50 to be pressed. This embodiment provides a second pore group 112 with a smaller diameter and a higher density. Under the premise of ensuring that the workpiece 50 to be pressed is effectively adsorbed, the workpiece 50 to be pressed will not produce depressions that affect the subsequent process of the workpiece 50 to be pressed.

[0046] The loading platform 10 is further provided with avoidance holes 14 , the number of the avoidance holes 14 is the same as the number of the positioning members 222 and the positions thereof correspond. When the positioning members 222 move toward the loading platform 10 , the avoidance holes 14 are used to accommodate the positioning members 222 .

[0047] Please refer again Figure 4The pressing device 100 may further include a base 30, the loading platform 10 and the base 30 are relatively fixed, each of the pressing mechanisms 20 is movably arranged on the base 30, and each of the pressing mechanisms 20 can move toward the loading platform 10 or away from the loading platform 10 in their respective corresponding directions.

[0048] The pressing device 100 may further include sliding assemblies 40. The number of the sliding assemblies 40 is the same as the number of the pressing mechanisms 20. The sliding assemblies 40 are used to slidably connect the base 30 and the corresponding pressing mechanisms 20. The sliding assemblies 40 may include sliders 41 and slide rails 42. The slide rails 42 and the base 30 are relatively fixed, and the sliders 41 and the base plate 21 are relatively fixed. The sliders 41 can move along the slide rails 42 in the second direction L2, thereby driving the pressing mechanisms 20 to move in the second direction L2.

[0049] See also Figures 7 to 10 The embodiment of the present application further provides a pressing method for pressing a deformed workpiece 50 using the pressing device 100, which may include the following steps: Step S1: Please refer to Figure 7 , placing the deformed workpiece 50 to be pressed on the loading platform 10 .

[0050] After the workpiece 50 to be pressed is placed on the stage 10, the pressing mechanism 20 moves toward the stage 10 under the action of the sliding assembly 40. At this time, the pressing plate 23 is tilted relative to the stage 10 and has a certain distance therefrom.

[0051] After the deformed workpiece 50 to be pressed is placed on the stage 10 , the vacuum adsorption assembly 26 may be turned on to adsorb the workpiece 50 to be pressed.

[0052] Step S2: Please refer to Figure 8 , open the driving assembly 24, and the driving assembly 24 drives the pressing plate 23 to rotate toward the loading platform 10.

[0053] The first driving member 243 is turned on, driving the rotating shaft 242 to rotate about the first direction L1, causing the pressing plate 23 to rotate synchronously with the rotating shaft 242. When the pressing plate 23 contacts the object to be pressed 50, the first driving member 243 is turned off. At this point, the pressing plate 23 is not pressed down to its limit, and the position of the object to be pressed 50 can be adjusted as needed.

[0054] Step S3: Please refer to Figure 9, open the positioning assembly 22, and move the positioning assembly 22 toward the piece to be pressed 50 until the positioning assembly 22 abuts against the piece to be pressed 50.

[0055] The second driving member 221 is turned on and drives the positioning member 222 to move toward the workpiece 50 until the positioning member 222 abuts against the edge of the workpiece 50. When the positioning members 222 of the plurality of pressing mechanisms 20 abut against the edge of the workpiece 50, the workpiece 50 is positioned appropriately on the stage 10 and is fixed to the stage 10 by vacuum suction. At this point, the driving member drives the positioning member 222 to move away from the workpiece 50.

[0056] Step S4: Please refer to Figure 10 , the driving assembly 24 is turned on again, and the driving assembly 24 drives the pressing plate 23 to rotate further toward the stage 10 to press the non-processing area 52 of the workpiece 50 to be pressed.

[0057] The first driving member 243 is turned on again, and the first driving member 243 drives the rotating shaft 242 to further rotate about the first direction L1, and the pressing plate 23 further rotates synchronously with the rotating shaft 242. The pressing plate 23 is flattened by the pressing action of the pressing plate 23 and the suction action of the vacuum suction assembly 26.

[0058] The pressing device 100 provided in the embodiment of the present application presses the non-process area 52 of the workpiece to be pressed 50 through the pressing plate 23, avoiding contact with the process area 51, and effectively preventing pressing marks and surface contamination in the process area 51; a rotary drive method is used to achieve height adjustment of the pressing plate 23. Compared with traditional cylinders (fixed stroke) and linear motors (occupying a large space), it can meet multiple fine height requirements in a small space, greatly saving installation space; through the "lift and confirm before moving" operation logic, combined with the safety confirmation component 25 on the rotating shaft 242, a double safety guarantee is formed, effectively avoiding component collisions, and preventing height misjudgment due to transmission component failure, thereby improving the safety and stability of the pressing device 100; the multi-stage pressing depth and action timing of the pressing plate 23 can be flexibly set to adapt to the pressing requirements of different workpieces to be pressed 50.

[0059] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent replacements of the technical solution of the present application should not depart from the scope of the technical solution of the present application.

Claims

1. A pressing device, characterized in that: include: A loading platform, the loading platform is used to carry the workpiece to be pressed; as well as A plurality of pressing mechanisms surround the loading platform, each of the pressing mechanisms comprising: substrate; A positioning assembly is provided on the base plate, and is used to abut against an edge of the workpiece to be pressed; Pressed board; and The driving component is arranged on the base plate and connected to the pressing plate. The driving component is used for driving the pressing plate to rotate so that the pressing plate presses the non-process area of ​​the workpiece to be pressed.

2. The pressing device according to claim 1, characterized in that The stage is provided with a plurality of air holes, and the pressing device further comprises a vacuum adsorption component, which is communicated with the air holes and is used to generate negative pressure in the air holes to adsorb the workpiece to be pressed.

3. The pressing device according to claim 2, characterized in that The worktable is divided into an inner area and an outer area, the outer area surrounds the inner area, the inner area of ​​the worktable is used to support the inner side of the workpiece to be pressed, and the outer area is used to support the outer periphery of the workpiece to be pressed; the multiple pores include a first pore group and a second pore group, the first pore group is located in the inner area, and the second pore group is located in the outer area; the diameter of the pores of the second pore group is smaller than the diameter of the pores of the first pore group, and the density of the second pore group is smaller than the density of the first pore group.

4. The pressing device according to claim 1, characterized in that The driving assembly includes a rotating shaft and a first driving member. One end of the pressing plate is fixed to the rotating shaft. The first driving member is arranged on the base plate. The first driving member is used to drive the rotating shaft to rotate, so as to drive the pressing plate to rotate along with the rotating shaft.

5. The pressing device according to claim 4, characterized in that The first driving member includes a driving wheel, a driven wheel and a transmission belt. The transmission belt is sleeved on the outer circumference of the driving wheel and the driven wheel to connect the driving wheel and the driven wheel. The rotating shaft is fixedly connected to the driven wheel.

6. The pressing device according to claim 4, characterized in that The pressing mechanism also includes a safety confirmation component, which includes a light-shielding plate and a sensor; the light-shielding plate is fixed to one end of the rotating shaft, and a notch is provided on the light-shielding plate; the sensor is arranged on the substrate; the sensor is used to emit light toward the light-shielding plate and to sense light reflected by the light-shielding plate.

7. The pressing device according to claim 1, characterized in that The positioning assembly includes a second driving member and a positioning member, the second driving member is connected to the positioning member, the second driving member is arranged on the base plate, and the second driving member is used to drive the positioning member to move and abut against the member to be pressed.

8. The pressing device according to claim 7, characterized in that The pressing plate is provided with an opening, which is formed by an inward depression of a side surface of the pressing plate and passes through two opposite surfaces of the pressing plate; the positioning member can be inserted into the opening.

9. The pressing device according to claim 1, characterized in that The pressing device also has a base and a sliding assembly, the sliding assembly includes a slider and a slide rail, the slider is fixed to the base, the slide rail is fixed to the base, and the slider is slidably connected to the slide rail so that the pressing mechanism is slidably connected to the base.

10. A pressing method, characterized in that: The pressing method uses the pressing device according to any one of claims 1 to 9 to press the workpiece to be pressed, and the pressing method includes the following steps: placing the workpiece to be pressed on the loading platform; Turning on the driving assembly, the driving assembly drives the pressing plate to rotate toward the loading platform; Opening the positioning assembly, and moving the positioning assembly toward the piece to be pressed until the positioning assembly abuts against an edge of the piece to be pressed; and The driving assembly is turned on again, and the driving assembly drives the pressing plate to rotate further toward the stage to press the non-processing area of ​​the workpiece to be pressed.

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