A pressure maintaining device

Abstract

The application discloses a pressure maintaining equipment and relates to the field of automation. The pressure maintaining equipment comprises a transfer device, at least two pressure maintaining boxes and a positioning device. The transfer device comprises a first mechanism, a second mechanism and a third mechanism. The positioning device is provided with a positioning area. When the first mechanism stacks a subsequent pressure maintaining box on a previous pressure maintaining box to form an assembly cavity, the second mechanism can synchronously place a rear shell in the first area. The pressure maintaining equipment provided by the application can effectively avoid the separation of glue between the middle frame and the rear shell or the entry of air, thereby avoiding the influence of glue cavities, strengthening the air tightness of the connection and being beneficial to improving the quality and yield of the connection structure.

Description

Technical Field

[0001] This invention relates to the field of automation, and more specifically to a pressure-holding device. Background Technology

[0002] Wearable watches and wristbands, among other electronic products, are small, portable, and offer powerful functionality through software support and data interaction. As an emerging field in the consumer electronics industry, they are widely used in sports, healthcare, and entertainment, employing technologies such as sensors and wireless connectivity to achieve various novel and interesting interaction methods, gradually gaining user recognition and popularity. The main structure of wearable watches and wristbands primarily consists of a mid-frame and a back cover.

[0003] Currently, the assembly between the mid-frame and the back cover is usually done manually. The back cover is directly snapped into the mid-frame, then clamped in place, and the pressure-holding box is removed. Afterward, the pressure-holding box is snapped back into place, and the clamping clips on the clamps are released. This method fails to maintain pressure on the back cover, leading to poor airtightness. Bonding equipment needs to use clamping clips on the clamps to hold the back cover in place after bonding to maintain pressure. However, this method subjectes the back cover to three different pressure changes: 1. Pressure applied when fitting the back cover; 2. The pressure of the clamps on the fixture; 3. Pressure of the pressure holding box; These three pressure variations can all cause glue delamination or air ingress between the middle frame and the back shell, resulting in glue voids, poor airtightness, and reduced structural quality and yield. Summary of the Invention To address the technical problems mentioned above, the present invention provides a pressure-holding device, comprising: The transfer device includes a first mechanism, a second mechanism, and a third mechanism; At least two pressure-holding boxes, with either pressure-holding box being a rigid structure; And a positioning device, which is equipped with a positioning area; The first mechanism is adapted to transport the pressure-holding boxes to the positioning area, and an assembly cavity suitable for placing the rear shell and the middle frame is formed between two adjacent pressure-holding boxes stacked vertically; the second mechanism is adapted to transport the rear shell to a first area on the upper end of the pressure-holding box corresponding to the assembly cavity; the third mechanism is adapted to transport the middle frame to a second area on the upper end of the pressure-holding box corresponding to the assembly cavity; the first area and the second area are connected. While the first mechanism stacks the next pressure-holding box onto the previous pressure-holding box to form the assembly cavity, the second mechanism can simultaneously place the rear shell correspondingly in the first area.

[0004] Optionally, each pressure holding box is provided with a positioning structure and a limiting structure; the lower pressure holding box is connected to another pressure holding box located adjacent to it above it through the positioning structure and the limiting structure, and the assembly cavity constructed by the two pressure holding boxes is defined along the height of the pressure holding boxes in the stacking direction.

[0005] Optionally, the positioning structure includes a plurality of spaced positioning holes, which pass through the pressure holding box; at least a portion of the upper outer edge of the positioning holes extends out of the upper end face of the pressure holding box, and at least a portion of the lower outer edge of the positioning holes extends in a direction away from the pressure holding box, with the upper outer edge of the positioning hole and the lower outer edge of the positioning hole conformally corresponding to each other.

[0006] Optionally, the limiting structure includes a limiting post and a limiting hole, the limiting post being disposed on the upper end face of the pressure holding box, and the limiting hole being disposed on the lower end face of the pressure holding box; The limiting structure includes a limiting edge and a limiting groove, the limiting edge being disposed on the outer edge side of the lower end face of the pressure holding box, and the limiting groove being disposed on the outer edge side of the upper end face of the pressure holding box.

[0007] Optionally, the positioning device includes a clamping mechanism and a positioning mechanism, the clamping mechanism being adapted to be close to or away from the plurality of pressure-holding boxes in the release stack; the positioning mechanism being adapted to define the positioning area.

[0008] Optionally, the positioning mechanism includes a magnetic structure for constructing the positioning area; the lower end of the pressure holding box is provided with at least one magnetic connection hole, the magnetic structure and the magnetic connection hole are magnetically connected accordingly, and the magnetic connection hole is respectively spaced apart from the positioning structure and the limiting structure.

[0009] Optionally, the positioning mechanism further includes a positioning lifting component; the magnetic suction structure is disposed at the driving end of the positioning lifting component; The pressure-holding device also includes a third conveyor line, and the positioning and lifting mechanism is installed on the third conveyor line. The third conveyor line is equipped with two parallel conveyor belts. The length of the magnetic attraction structure is greater than the distance between the two conveyor belts. The positioning and lifting mechanism is adapted to raise the magnetic attraction structure away from the third conveyor line or lower the magnetic attraction structure to approach and abut against the third conveyor line.

[0010] Optionally, the transfer device further includes a three-way module; the three-way module is adapted to be mounted on a rack; The first mechanism includes a first driving component and a material picking gripper. The mounting end of the first driving component is disposed on the three-way module, and the material picking gripper is connected to the driving end of the first driving component. The material picking gripper is used to pick up and place the pressure holding box. The second mechanism includes a negative pressure component, the mounting end of which is disposed on the three-way module, and the negative pressure component is adapted to adsorb the rear shell; The third mechanism includes a drive structure and a transfer gripper. The drive structure is mounted on the frame, and the transfer gripper is disposed at the drive end of the drive structure.

[0011] Optionally, the transfer device further includes a mounting plate and a lifting module. The mounting plate is disposed at the drive end of the three-way module, and the lifting module is fixed on the mounting plate. The mounting plate extends along the lifting direction of the lifting module, and the first mechanism and the second mechanism are disposed at the drive end of the lifting module.

[0012] Optionally, there are two material-grabbing claws, and the second mechanism is disposed between the two material-grabbing claws. The material-grabbing stroke of the two material-grabbing claws and the second mechanism are arranged to avoid each other. The pressure box is provided with a through area. When the first mechanism clamps the pressure box with the material-grabbing claws, the second mechanism is adapted to pass through the through area.

[0013] Optionally, the drive structure includes a first sliding member, a lifting member, and a second sliding member. The mounting end of the first sliding member is fixedly connected to the frame. The lifting member is disposed at the sliding end of the first sliding member. The mounting end of the second sliding member is disposed at the lifting end of the lifting member. The mounting end of the transfer gripper is disposed at the sliding end of the second sliding member.

[0014] Optionally, the pressure holding device further includes a first conveyor line and a fixing module. The first conveyor line is adapted to convey the pressure holding box, and the fixing module is fixed at the mounting end of the first conveyor line. The fixing module is used to fix the pressure holding box at the first feeding station.

[0015] Optionally, the pressure holding device further includes a second conveyor line, a carrier, and a limiting module. The second conveyor line is adapted to convey the carrier. The carrier is provided with a first bearing cavity adapted to place the middle frame and a second bearing cavity adapted to place the rear shell. The first bearing cavity and the second bearing cavity are arranged side by side with a gap. The limiting module is fixed to the mounting end of the second conveyor line and is used to limit the carrier at the second loading station.

[0016] Optionally, the pressure holding device further includes a flipping module, which is fixed to the mounting end of the second conveyor line and located near the input side of the second conveyor line.

[0017] Optionally, the pressure holding device further includes a fourth conveyor line and an NG module. The fourth conveyor line and the second conveyor line are arranged in parallel with each other at intervals. The NG module is used to transfer the middle frame in the first bearing cavity and / or the rear shell in the second bearing cavity to the fourth conveyor line.

[0018] Optionally, the pressure-holding device further includes a vision component, which includes an upper vision module and a lower vision module. The upper vision module is adapted to scan the upper end face of the middle frame, and the lower vision module is adapted to scan the lower end face of the rear shell.

[0019] The technical solution provided by this invention has the following advantages: The pressure-holding device provided by the present invention includes a transfer device, at least two pressure-holding boxes, and a positioning device; the transfer device includes a first mechanism, a second mechanism, and a third mechanism; at least two pressure-holding boxes, each of which is configured as a rigid structure; the positioning device is configured with a positioning area; the first mechanism is adapted to transport the pressure-holding boxes stacked to the positioning area, and an assembly cavity suitable for placing a rear shell and a middle frame is formed between two adjacent pressure-holding boxes stacked vertically; the second mechanism is adapted to transport the rear shell stacked to the first area corresponding to the assembly cavity on the upper end of the pressure-holding box, and the third mechanism is adapted to transport the middle frame stacked to the second area corresponding to the assembly cavity on the upper end of the pressure-holding box, and the first area and the second area are connected; when the first mechanism stacks a subsequent pressure-holding box on top of a previous pressure-holding box to form an assembly cavity, the second mechanism can simultaneously place the rear shell corresponding to the first area.

[0020] In this pressure-holding device, a pre-set adhesive is applied to the corresponding connecting surfaces of the middle frame and the rear shell. The first mechanism transports the previous pressure-holding box to the positioning area, and the third mechanism transports the middle frame to be stacked on the second area of ​​the previous pressure-holding box. Subsequently, the second mechanism transports the rear shell to be stacked on the first area of ​​the previous pressure-holding box. At the same time, the first mechanism synchronously transports the next pressure-holding box to the previous pressure-holding box, so that the actions of placing the rear shell on top of the middle frame and placing the next pressure-holding box on top of the previous pressure-holding box are completed simultaneously. This allows the middle frame and the rear shell to be assembled in the assembly cavity formed by the two pressure-holding boxes, achieving the purpose of pressure-holding and sealing connection. It can effectively avoid the glue delamination or air entry between the middle frame and the rear shell, which would lead to glue voids, enhance the airtightness of the connection, and help improve the quality and yield of the connection structure. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the pressure-holding device provided by the present invention; Figure 2 This is a three-dimensional schematic diagram of the pressure-holding device provided by the present invention; Figure 3 This is a schematic diagram showing the connection between the positioning device and multiple stacked pressure-holding boxes in the pressure-holding equipment provided by the present invention. Figure 4 This is a partial schematic diagram of the positioning device in the pressure-holding equipment provided by the present invention; Figure 5 This is a schematic diagram of the pressure holding box in the pressure holding device provided by the present invention; Figure 6 A three-dimensional schematic diagram of the pressure holding box in the pressure holding device provided by the present invention; Figure 7 This is a partial schematic diagram of the pressure-holding device provided by the present invention; Figure 8 This is a partial schematic diagram of the transfer device in the pressure-holding equipment provided by the present invention; Figure 9 This is an assembly diagram of the first and second mechanisms in the pressure-holding device provided by the present invention; Figure 10 This is a schematic diagram of the structure of the third mechanism and the carrier in the pressure-holding device provided by the present invention; Figure 11 This is a schematic diagram showing the connection between the second conveyor line and the transfer device in the pressure-holding equipment provided by the present invention. Figure 12 A schematic diagram of the structure of the first mechanism, the second mechanism, and the second conveyor line in the pressure holding device provided by the present invention; Figure 13 This is a partial schematic diagram of the carrier in the pressure-holding device provided by the present invention; Explanation of reference numerals in the attached figures: 1-Transfer device; 11-First mechanism; 111-Material gripper; 12-Second mechanism; 121-Negative pressure component; 13-Third mechanism; 131-Transfer gripper; 132-First sliding component; 133-Lifting component; 134-Second sliding component; 14-Three-way module; 15-Mounting plate; 16-Lifting module; 21-Pressure holding box; 211-Positioning hole; 212-Magnetic connection hole; 213-Limiting post; 214-Limiting hole; 215-Limiting edge; 216-Limiting groove; 22-Middle frame; 23-Rear shell; 24-Carrier; 241-First bearing cavity; 242-Second bearing cavity; 3-Positioning device; 31-Clamping mechanism; 32-Positioning mechanism; 321-Magnetic suction structure; 33-Positioning lifting component; 41-First conveyor line; 42-Fixed module; 43-Second conveyor line; 44-Tilting module; 45-Limiting module; 46-Third conveyor line; 47-Fourth conveyor line; 48-NG module; 51 - Upper visual module; 52 - Lower visual module; 6-Rack. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Example 1 This embodiment provides a pressure-holding device, see [link / reference] Figure 1 and Figure 2 It includes a transfer device 1, a pressure holding box 21, a positioning device 3, a conveying assembly, and a vision component. The pressure holding box 21 is provided in two or more units. The positioning device 3 is configured with a positioning area.

[0028] The pressure box 21 is configured as a rigid structure; in one specific embodiment, the pressure box 21 is configured as an anti-static material, such as an anti-static PC board.

[0029] See Figures 8 to 12 The transfer device 1 includes a first mechanism 11, a second mechanism 12, and a third mechanism 13. The first mechanism 11 is adapted to transport the pressure-holding boxes 21 stacked to the positioning area, and an assembly cavity suitable for placing the rear shell 23 and the middle frame 22 is formed between two adjacent pressure-holding boxes stacked on top of each other. The second mechanism 12 is adapted to transport the rear shell 23 stacked to the first area of ​​the upper end of the pressure-holding box 21 corresponding to the assembly cavity. The third mechanism 13 is adapted to transport the middle frame 22 stacked to the second area of ​​the upper end of the pressure-holding box 21 corresponding to the assembly cavity. The first area and the second area are connected.

[0030] In the pressure-holding device provided in this embodiment, when the first mechanism 11 stacks the next pressure-holding box 21 onto the previous pressure-holding box 21 to form an assembly cavity, the second mechanism 12 can simultaneously place the rear shell 23 correspondingly in the first area.

[0031] In the specific working process, a preset adhesive is first applied to the corresponding connecting surfaces of the middle frame 22 and the rear shell 23. The first mechanism 11 transports the first pressure box 21 to the positioning area, and then the third mechanism 13 transports the middle frame 22 to be stacked on the second area of ​​the first pressure box 21. Subsequently, the second mechanism 12 transports the rear shell 23 to be stacked on the first area of ​​the first pressure box 21. At the same time, the first mechanism 11 synchronously transports the rear pressure box 21 to the front pressure box 21, so that the action of placing the rear shell 23 on top of the middle frame 22 and the action of placing the rear pressure box 21 on the front pressure box 21 are completed synchronously. This realizes that the middle frame 22 and the rear shell 23 are assembled in the assembly cavity formed by the two pressure boxes 21, so as to achieve the purpose of pressure sealing connection. This can effectively avoid the glue delamination or air entering between the middle frame and the rear shell, which would lead to glue voids. It strengthens the airtightness of the connection and is conducive to improving the quality and yield of the connection structure.

[0032] In this embodiment, each pressure holding box 21 is provided with a positioning structure and a limiting structure; the pressure holding box 21 located below is connected to another pressure holding box 21 located above it through the positioning structure and the limiting structure, and the assembly cavity constructed by the two pressure holding boxes 21 is limited along the height of the pressure holding boxes 21 in the stacking direction.

[0033] In some specific implementation methods, see Figure 5The positioning structure includes several spaced positioning holes 211, through which the pressure-holding box 21 passes. At least a portion of the upper outer edge of the positioning holes 211 extends beyond the upper surface of the pressure-holding box 21, and at least a portion of the lower outer edge of the positioning holes 211 extends away from the pressure-holding box 21. The upper and lower outer edges of the positioning holes 211 are conformally corresponding. For multiple stacked pressure-holding boxes 21, positioning can be achieved by aligning the upper outer edge of the positioning hole 211 of the lower pressure-holding box 21 with the lower outer edge of the positioning hole 211 of the upper pressure-holding box 21.

[0034] In some specific implementation methods, see Figure 5 and Figure 6 The limiting structure includes a limiting post 213 and a limiting hole 214, with the limiting post 213 located on the upper end face of the pressure holding box 21 and the limiting hole 214 located on the lower end face of the pressure holding box 21. The limiting structure also includes a limiting edge 215 and a limiting groove 216, with the limiting edge 215 located on the outer edge side of the lower end face of the pressure holding box 21 and the limiting groove 216 located on the outer edge side of the upper end face of the pressure holding box 21.

[0035] See Figure 3 and Figure 4 The positioning device 3 includes a clamping mechanism 31 and a positioning mechanism 32. The clamping mechanism 31 is adapted to be close to or away from the multiple pressure-holding boxes 21 that are released from the stack. The positioning mechanism 32 is adapted to define a positioning area.

[0036] In some specific implementation methods, see Figure 4 and Figure 6 The positioning mechanism 32 includes a magnetic structure 321, which is used to construct the positioning area. The lower end of the pressure holding box 21 is provided with one or more magnetic connection holes 212. The magnetic structure 321 and the magnetic connection holes 212 are magnetically connected to each other. The magnetic connection holes 212 are respectively arranged at a distance from the positioning structure and the limiting structure.

[0037] See Figure 3 and Figure 4The conveying assembly includes a third conveyor line 46, and the positioning mechanism 32 further includes a positioning lifting actuator 33. A magnetic suction structure 321 is disposed at the driving end of the positioning lifting actuator 33. The positioning lifting actuator 33 is mounted on the third conveyor line 46, which is equipped with two parallel conveyor belts. The length of the magnetic suction structure 321 is greater than the distance between the two conveyor belts. The positioning lifting actuator 33 is adapted to cause the magnetic suction structure 321 to rise away from the third conveyor line 46 or to cause the magnetic suction structure 321 to fall closer to and abut against the third conveyor line 46. The positioning lifting actuator 33 drives the magnetic suction structure 321 to rise, providing a connection position for the pressure holding box 21 and forming a corresponding positioning area. When multiple stacked pressure holding boxes 21 need to be conveyed, the positioning lifting actuator 33 drives the magnetic suction structure 321 to fall, using the third conveyor line 46 to contact the bottom end of the pressure holding box 21, so that the pressure holding box 21 stays on the third conveyor line 46, and the magnetic suction structure 321 separates from the multiple stacked pressure holding boxes 21.

[0038] See Figure 1 and Figure 8 The transfer device 1 also includes a three-way module 14, which is suitable for installation on the frame 6; the first mechanism 11 and the second mechanism 12 are integrated on the three-way module 14.

[0039] For a specific implementation method, see Figure 9 The first mechanism 11 includes a first driving member and a material picking gripper 111. The mounting end of the first driving member is set on the three-way module 14, and the material picking gripper 111 is connected to the driving end of the first driving member. The material picking gripper 111 is used to pick up and put down the pressure holding box 21. The first driving member is set as a two-way cylinder. Under the driving action of the first driving member, the material picking gripper 111 can approach and pick up the pressure holding box 21 or move away from and release the pressure holding box 21.

[0040] Furthermore, there are two material-grabbing claws 111, and the second mechanism 12 is located between the two material-grabbing claws 111. The material-grabbing stroke of the two material-grabbing claws 111 is arranged to avoid the second mechanism 12. The pressure box 21 is provided with a through area. When the first mechanism 11 grips the pressure box 21 through the material-grabbing claws 111, the second mechanism 12 is adapted to pass through the through area.

[0041] See Figure 8 The transfer device 1 also includes a mounting plate 15 and a lifting module 16. The mounting plate 15 is disposed at the drive end of the three-way module 14, and the lifting module 16 is fixed on the mounting plate 15. The mounting plate 15 extends along the lifting direction of the lifting module 16. The first mechanism 11 and the second mechanism 12 are disposed at the drive end of the lifting module 16.

[0042] For a specific implementation method, see Figure 9The second mechanism 12 includes a negative pressure component 121, the mounting end of which is located on the three-way module 14. The negative pressure component 121 is adapted to adsorb the back shell 23. The negative pressure component 121 can move up and down through the through area to avoid the structure of the pressure holding device.

[0043] In one specific embodiment, the second mechanism 12 further includes a lifting actuator, which is installed at the drive end of the lifting module 16. A negative pressure component 121 is located on the actuation side of the lifting actuator. The position of the negative pressure component 121 is adjusted by the lifting actuator to adsorb the rear shell 23. Correspondingly, the lifting actuator can adjust the position and height of the rear shell 23, so that the rear shell 23 and the pressure holding box 21 move synchronously, achieving synchronous assembly and pressing. The lifting actuator can be fixed to the drive end of the lifting module 16 via an external connecting plate.

[0044] In one specific embodiment, the second mechanism 12 further includes a rotary drive component, which is installed at the drive end of the lifting module 16. A negative pressure component 121 is disposed at the drive end of the rotary drive component. The rotary drive component drives the negative pressure component 121 to rotate on the horizontal plane, thereby adjusting the rotational orientation of the negative pressure component 121 in absorbing and fixing the rear shell 23. The rotary drive component can be fixed to the drive end of the lifting module 16 via an external connecting plate.

[0045] See Figure 10 The third mechanism 13 includes a drive structure and a transfer gripper 131. The drive structure is mounted on the frame 6, and the transfer gripper 131 is located at the drive end of the drive structure.

[0046] For a specific implementation method, see Figure 10 The drive structure includes a first sliding member 132, a lifting member 133, and a second sliding member 134. The mounting end of the first sliding member 132 is fixedly connected to the frame 6. The lifting member 133 is located at the sliding end of the first sliding member 132. The mounting end of the second sliding member 134 is located at the lifting end of the lifting member 133. The mounting end of the transfer gripper 131 is located at the sliding end of the second sliding member 134.

[0047] See Figure 1 The conveying assembly also includes a first conveyor line 41, a second conveyor line 43, and a fourth conveyor line 47; the first conveyor line 41 is adapted to convey the pressure box 21, the second conveyor line 43 is adapted to convey the carrier 24, and the fourth conveyor line 47 is adapted to convey the defective middle frame 22 or rear shell 23.

[0048] See Figure 7The pressure holding equipment also includes a fixing module 42, which is fixed to the mounting end of the first conveyor line 41. The fixing module 42 is used to fix the pressure holding box 21 at the first loading station. The pressure holding box 21, which is transported on the first conveyor line 41, is fixed at the first loading station by the fixing module 42, and then picked up by the first mechanism 11 and transferred to the positioning area.

[0049] In one specific embodiment, two fixing modules 42 are provided. The two fixing modules 42 are used to jointly limit and fix the same pressure holding box 21 in the longitudinal direction along the first conveying line 41 and in the transverse direction perpendicular to the first conveying line 41.

[0050] See Figures 11 to 13 The pressure-holding device also includes a carrier 24 and a limiting module 45. The carrier 24 is provided with a first bearing cavity 241 suitable for placing the middle frame 22 and a second bearing cavity 242 suitable for placing the rear shell 23. The first bearing cavity 241 and the second bearing cavity 242 are arranged side by side with a gap. The limiting module 45 is fixed to the mounting end of the second conveyor line 43 and is used to limit the carrier 24 at the second loading station. There are two of each of the first bearing cavity 241 and the second bearing cavity 242.

[0051] See Figure 11 The pressure-holding device also includes a flipping module 44, which is fixed to the mounting end of the second conveyor line 43 and located near the input side of the second conveyor line 43. The flipping module 44 is used to grip the flipping housing 23 to cooperate with the external scanning module for scanning and taking pictures.

[0052] See Figure 1 and Figure 11 The pressure holding device also includes an NG module 48, a fourth conveyor line 47 and a second conveyor line 43 arranged in parallel at intervals. The NG module 48 is used to transfer the middle frame 22 in the first bearing cavity 241 and / or the rear shell 23 in the second bearing cavity 242 to the fourth conveyor line 47.

[0053] See Figure 1 The vision components include an upper vision module 51 and a lower vision module 52. The upper vision module 51 is adapted to scan the upper surface of the frame 22, and the lower vision module 52 is adapted to scan the lower surface of the back shell 23.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pressure-holding device, characterized in that, include: The transfer device (1) includes a first mechanism (11), a second mechanism (12) and a third mechanism (13); At least two pressure-holding boxes (21), any one of which is configured as a rigid structure; and positioning device (3), which is equipped with a positioning area; The first mechanism (11) is adapted to transport the pressure-holding box (21) to the positioning area, and an assembly cavity suitable for placing the rear shell (23) and the middle frame (22) is formed between two adjacent pressure-holding boxes (21) stacked vertically; the second mechanism (12) is adapted to transport the rear shell (23) to the first area corresponding to the assembly cavity at the upper end of the pressure-holding box (21); the third mechanism (13) is adapted to transport the middle frame (22) to the second area corresponding to the assembly cavity at the upper end of the pressure-holding box (21); the first area and the second area are connected. When the first mechanism (11) stacks the next pressure-holding box (21) onto the previous pressure-holding box (21) to form the assembly cavity, the second mechanism (12) can simultaneously place the rear shell (23) in the first area. The transfer device (1) further includes a three-way module (14), a mounting plate (15), and a lifting module (16). The three-way module (14) is adapted to be installed on the frame (6). The mounting plate (15) is disposed at the drive end of the three-way module (14). The lifting module (16) is fixed on the mounting plate (15). The mounting plate (15) extends along the lifting direction of the lifting module (16). The first mechanism (11) and the second mechanism (12) are disposed at the drive end of the lifting module (16). The first mechanism (11) includes a first driving member and a material-picking gripper (111). The mounting end of the first driving member is disposed on the three-way module (14). The material-picking gripper (111) is connected to the driving end of the first driving member. The material-picking gripper (111) is used to pick up and put down the pressure box (21). There are two material-picking grippers (111). The second mechanism (12) is disposed between the two material-picking grippers (111). The picking stroke of the two material-picking grippers (111) and the second mechanism (12) are arranged to avoid each other. The pressure box (21) is provided with a through area. When the first mechanism (11) clamps the pressure box (21) through the material-picking gripper (111), the second mechanism (12) is adapted to pass through the through area. The second mechanism (12) includes a negative pressure component (121), the mounting end of which is disposed on the three-way module (14), and the negative pressure component (121) is adapted to adsorb the rear shell (23); The third mechanism (13) includes a drive structure and a transfer gripper (131). The drive structure is mounted on the frame (6), and the transfer gripper (131) is located at the drive end of the drive structure.

2. The pressure-holding device according to claim 1, characterized in that, Each pressure box (21) is provided with a positioning structure and a limiting structure; the pressure box (21) located below is connected to another pressure box (21) located above it via the positioning structure and the limiting structure, and the assembly cavity constructed by the two pressure boxes (21) is defined along the height of the pressure boxes (21) in the stacking direction.

3. The pressure-holding device according to claim 2, characterized in that, The positioning structure includes a plurality of spaced positioning holes (211), which pass through the pressure holding box (21). At least a portion of the upper outer edge of the positioning hole (211) extends out of the upper end face of the pressure holding box (21), and at least a portion of the lower outer edge of the positioning hole (211) extends in a direction away from the pressure holding box (21). The upper outer edge of the positioning hole (211) and the lower outer edge of the positioning hole (211) are correspondingly arranged.

4. The pressure-holding device according to claim 3, characterized in that, The limiting structure includes a limiting post (213) and a limiting hole (214) respectively. The limiting post (213) is disposed on the upper end face of the pressure holding box (21), and the limiting hole (214) is disposed on the lower end face of the pressure holding box (21). The limiting structure includes a limiting edge (215) and a limiting groove (216) respectively. The limiting edge (215) is located on the outer edge side of the lower end face of the pressure holding box (21), and the limiting groove (216) is located on the outer edge side of the upper end face of the pressure holding box (21).

5. The pressure-holding device according to claim 2, characterized in that, The positioning device (3) includes a clamping mechanism (31) and a positioning mechanism (32), the clamping mechanism (31) being adapted to be close to or away from the plurality of pressure-holding boxes (21) in the release stack; the positioning mechanism (32) being adapted to define the positioning area.

6. The pressure-holding device according to claim 5, characterized in that, The positioning mechanism (32) includes a magnetic structure (321) for constructing the positioning area; the pressure holding box (21) has at least one magnetic connection hole (212) at its lower end, the magnetic structure (321) and the magnetic connection hole (212) are magnetically connected to each other, and the magnetic connection hole (212) is spaced apart from the positioning structure and the limiting structure respectively.

7. The pressure-holding device according to claim 6, characterized in that, The positioning mechanism (32) further includes a positioning lifting action (33); the magnetic suction structure (321) is disposed at the driving end of the positioning lifting action (33); The pressure holding device also includes a third conveyor line (46), and the positioning and lifting actuating member (33) is installed on the third conveyor line (46). The third conveyor line (46) is equipped with two parallel conveyor belts. The length of the magnetic suction structure (321) is greater than the distance between the two conveyor belts. The positioning and lifting actuating member (33) is adapted to lift the magnetic suction structure (321) away from the third conveyor line (46) or lower the magnetic suction structure (321) to approach and abut against the third conveyor line (46).

8. The pressure-holding device according to claim 1, characterized in that, The drive structure includes a first sliding member (132), a lifting member (133), and a second sliding member (134). The mounting end of the first sliding member (132) is fixedly connected to the frame (6). The lifting member (133) is disposed at the sliding end of the first sliding member (132). The mounting end of the second sliding member (134) is disposed at the lifting end of the lifting member (133). The mounting end of the transfer gripper (131) is disposed at the sliding end of the second sliding member (134).

9. The pressure-holding device according to claim 1, characterized in that, The pressure holding device also includes a first conveyor line (41) and a fixing module (42). The first conveyor line (41) is adapted to convey the pressure holding box (21). The fixing module (42) is fixed at the mounting end of the first conveyor line (41) and is used to fix the pressure holding box (21) at the first loading station.

10. The pressure-holding device according to claim 1, characterized in that, The pressure holding device also includes a second conveyor line (43), a carrier (24), and a limiting module (45). The second conveyor line (43) is adapted to convey the carrier (24). The carrier (24) is provided with a first bearing cavity (241) adapted to place the middle frame (22) and a second bearing cavity (242) adapted to place the rear shell (23). The first bearing cavity (241) and the second bearing cavity (242) are arranged side by side with a gap. The limiting module (45) is fixed to the mounting end of the second conveyor line (43). The limiting module (45) is used to limit the carrier (24) at the second loading station.

11. The pressure-holding device according to claim 10, characterized in that, The pressure holding device also includes a flipping module (44), which is fixed to the mounting end of the second conveyor line (43) and is located near the input side of the second conveyor line (43).

12. The pressure-holding device according to claim 10, characterized in that, The pressure holding device also includes a fourth conveyor line (47) and an NG module (48). The fourth conveyor line (47) and the second conveyor line (43) are arranged in parallel at intervals. The NG module (48) is used to transfer the middle frame (22) in the first bearing cavity (241) and / or the rear shell (23) in the second bearing cavity (242) to the fourth conveyor line (47).

13. The pressure-holding device according to claim 1, characterized in that, The pressure holding device also includes a vision component, which includes an upper vision module (51) and a lower vision module (52). The upper vision module (51) is adapted to scan the upper end face of the middle frame (22), and the lower vision module (52) is adapted to scan the lower end face of the rear shell (23).

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