CN213368485U - Adsorption equipment and row's piece machine of fingerprint module - Google Patents

Abstract

The utility model provides an adsorption equipment and row piece machine of fingerprint module, adsorption equipment is used for adsorbing the fingerprint module that is located and holds on the piece, the fingerprint module is the cambered surface with the surface that holds the contact of piece, adsorption equipment includes the installed part and installs main suction nozzle and the vice suction nozzle at the installed part, main suction nozzle is including the first suction head of keeping away from the installed part, vice suction nozzle is including the second suction head of keeping away from the installed part, first suction head and second suction head are located the same one side of installed part, first suction head and/or the relative installed part of second suction head are portable, the second suction head is used for adsorbing and applys the pressure that holds the piece towards the fingerprint module, so that fingerprint module and first suction head align, first suction head is used for adsorbing the. Through setting up vice suction nozzle, vice suction nozzle adsorbs and applys pressure to the fingerprint module, thereby the fingerprint module is ajusted and is counterpointed with main suction nozzle under the effect of pressure, and the assigned position of fingerprint module can be adsorbed to main suction nozzle to the row piece yield has been improved.

Description

Adsorption equipment and row's piece machine of fingerprint module

Technical Field

The utility model belongs to the technical field of the assembly of fingerprint module, especially, relate to an adsorption equipment and chip arranging machine of fingerprint module.

Background

At present, the automatic operation is required to be led in the production of the cambered surface side fingerprint identification module, the fingerprint identification module on a tray (tray disc) is transferred to a carrier plate through a sheet arranging machine, and then the processes of dispensing, assembling a conductive base and the like are carried out. Cambered surface side fingerprint identification module generally includes plane grid array package (land grid array, LGA), steel is mended and the Circuit board, LGA and steel are mended and are set up the relative both sides at the Circuit board, LGA is located one side of Circuit board row piece suction nozzle dorsad and is connected with the tray dish, because of the LGA has the uneven (especially Flexible Printed Circuit board (FPC) of easy deformation) of the mass distribution of cambered surface and Circuit board, cambered surface side fingerprint identification module is in the tilt state on the tray dish, absorb the in-process at row piece suction nozzle, can't guarantee to absorb at every turn and can both inhale the assigned position, lead to row piece yield lower, influence the product operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adsorption equipment of fingerprint module can guarantee all to adsorb the assigned position of fingerprint module at every turn, is favorable to improving row's piece yield.

For realizing the purpose of the utility model, the utility model provides a following technical scheme:

on the first hand, the utility model provides an adsorption device of a fingerprint module, which is used for adsorbing the fingerprint module on a bearing piece, the surface of the fingerprint module contacted with the bearing piece is an arc surface, the adsorption device comprises a mounting piece, a main suction nozzle and an auxiliary suction nozzle which are arranged on the mounting piece, the primary nozzle comprising a first nozzle remote from the mounting, the secondary nozzle comprising a second nozzle remote from the mounting, the first and second suction heads are located on the same side of the mounting member, the first and/or second suction heads being movable relative to the mounting member, the second suction head is used for absorbing and applying pressure towards the bearing piece to the fingerprint module, so that the fingerprint module with first suction head counterpoint, first suction head is used for adsorbing the fingerprint module after counterpointing. Through setting up vice suction nozzle, vice suction nozzle adsorbs and applys pressure to the fingerprint module, thereby the fingerprint module is ajusted and is counterpointed with main suction nozzle under the effect of pressure, and the assigned position of fingerprint module can be adsorbed to main suction nozzle to row piece yield and row piece efficiency have been improved.

In one embodiment, the auxiliary suction nozzle includes a fixed sleeve and a movable suction rod, the fixed sleeve is connected to the mounting member, a part of the movable suction rod is accommodated in the fixed sleeve and slidably connected to the fixed sleeve, and the second suction head is connected to a side of the movable suction rod facing away from the mounting member. Through setting up fixed sleeve and activity suction rod, but the installed part removes relatively of second suction head to adsorb and exert pressure to the fingerprint module.

In one embodiment, the auxiliary suction nozzle further comprises an elastic member, the elastic member is disposed in the fixed sleeve, the elastic member comprises a first end and a second end which are opposite to each other, the first end is connected with the fixed sleeve, and the second end is connected with the movable suction rod. Through setting up the elastic component to reset to the second suction head.

In one embodiment, the elastic member is sleeved on the periphery of the movable suction rod, a first end of the elastic member is fixedly connected with the fixed sleeve, and a second end of the elastic member is fixedly connected with the movable suction rod. Through the first end and the fixed sleeve fixed connection that set up the elastic component, the pole fixed connection is inhaled with the activity to the second end, and the connected mode is simple and can inhale the pole spacing to the activity, avoids the activity to inhale the pole and breaks away from fixed sleeve.

In one embodiment, the end of the movable suction rod away from the second suction head is a limiting end, the limiting end penetrates through the fixed sleeve, the auxiliary suction nozzle further comprises a limiting part, the limiting part is arranged at the limiting end and is opposite to the surface of the fixed sleeve, which faces away from the second suction head, so as to limit the second suction head from moving away from the fixed sleeve. Through setting up the locating part, the spacing end of activity suction rod is located to the locating part and is connected with the fixed sleeve surface of second suction head dorsad, and the locating part has the restraint effect to the tensile deformation of elastic component, can guarantee that the second suction head has sufficient initial elasticity to the fingerprint module.

In one embodiment, when not being suctioned, the first suction head is at a smaller distance from the mounting than the second suction head. It can be understood that first suction head with the distance of installed part is less than the second suction head with the distance of installed part, when the installed part drove main suction nozzle and vice suction nozzle and moves towards the fingerprint module, the distance of vice suction nozzle and fingerprint module is nearer, the second suction head at first with the contact of fingerprint module to in order to correct the position through vice suction nozzle to the fingerprint module earlier, then adsorb the assigned position of fingerprint module through main suction nozzle again.

In one embodiment, a positioning groove adapted to the shape of the fingerprint module is disposed on a surface of the main suction nozzle facing away from the mounting member, the positioning groove is used for accommodating the fingerprint module, the positioning groove includes a bottom wall, and a suction hole is disposed on the bottom wall and used for sucking the fingerprint module. Through setting up the constant head tank, the constant head tank further corrects the position of fingerprint module to the assigned position orientation that makes the fingerprint module has seted up the diapire of suction hole, thereby first suction head can adsorb the assigned position of fingerprint module.

In one embodiment, the second suction head is located in the direction of extension of the positioning slot. Through setting up the second suction head on the extending direction of constant head tank to make fingerprint module and first suction head counterpoint through the second suction head.

In one embodiment, the positioning groove further comprises a first side wall and a second side wall, the first side wall comprises a first edge and a second edge which are arranged oppositely, the second side wall comprises a third edge and a fourth edge which are arranged oppositely, the first edge and the third edge are connected to two opposite sides of the bottom wall, the distance between the second edge and the fourth edge is a first distance, the distance between the first edge and the third edge is a second distance, and the first distance is greater than the second distance. Be greater than the second distance through setting up first distance, be favorable to the constant head tank to carry out further correction to the position of fingerprint module.

In one embodiment, the first side wall and the second side wall are both stepped. All be the echelonment through setting up first lateral wall and second lateral wall for the constant head tank corresponds with the shape of fingerprint module, is favorable to the constant head tank to the accurate screens of fingerprint module.

In one embodiment, the suction device further includes at least one auxiliary suction nozzle, the auxiliary suction nozzle includes a third suction head far away from the mounting member, the third suction head and the first suction head are located on the same side of the mounting member, and the third suction head is used for sucking the circuit board of the fingerprint module. Through setting up supplementary suction nozzle, supplementary suction nozzle adsorbs the circuit board of fingerprint module, can avoid the fingerprint module to break away from adsorption equipment, is favorable to improving the absorbent stability of adsorption equipment.

In a second aspect, the present invention provides a sheet discharging machine, wherein the sheet discharging machine comprises a mechanical arm and an adsorption device of any one of the embodiments of the first aspect, the mechanical arm is connected to the installation part of the adsorption device, and the mechanical arm passes through the installation part to drive a main suction nozzle and an auxiliary suction nozzle to move. Through adding in arranging the piece machine the utility model provides an adsorption equipment arranges the piece machine and has higher row piece yield and row piece efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an embodiment of an adsorption apparatus;

FIG. 2 is a schematic perspective view of a fingerprint module according to an embodiment;

FIG. 3 is a schematic diagram illustrating a tilted state of the fingerprint module on the supporting member;

FIG. 4 is a schematic view of the fingerprint module being aligned on the carrier;

FIG. 5 is a schematic perspective view of the fingerprint module being adsorbed by the adsorbing device of FIG. 1;

FIG. 6 is a cross-sectional structural view of the secondary suction nozzle of FIG. 1;

FIG. 7 is a schematic perspective view of the first suction head of FIG. 1;

fig. 8 is a front view of the first nozzle of fig. 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1 to 3, an embodiment of the present invention provides an adsorption apparatus 100 for a fingerprint module 200, the adsorption apparatus 100 is used for adsorbing the fingerprint module 200 on a carrier 300, and a surface of the fingerprint module 200 contacting the carrier 300 is an arc surface. The suction device 100 includes a mounting member 10 and a main suction nozzle 20 and a sub suction nozzle 30 mounted on the mounting member 10. The primary suction nozzle 20 comprises a first suction head 21 remote from the mounting 10 and the secondary suction nozzle 30 comprises a second suction head 31 remote from the mounting 10, the first suction head 21 and the second suction head 31 being located on the same side of the mounting 10. First suction head 21 and/or second suction head 31 are portable for installed part 10, and second suction head 21 is used for adsorbing and exerts the pressure that holds a piece 300 towards fingerprint module 200 to make fingerprint module 200 counterpoint with first suction head 21, fingerprint module 200 after first suction head 21 is used for adsorbing the counterpoint.

The main suction nozzle 20 and the sub suction nozzle 30 in this embodiment are both fixedly connected to the mounting member 10, and the main suction nozzle 20 and the sub suction nozzle 30 are driven by the mounting member 10 to move toward the fingerprint module 200 or move away from the fingerprint module 200. In other embodiments, the main suction nozzle 20 and the sub suction nozzle 30 may be mounted on the mounting member 10 by a robot arm, and the main suction nozzle 20 and the sub suction nozzle 30 are controlled by the robot arm to move toward the fingerprint module 200 or move away from the fingerprint module 200. The main suction nozzle 20 and the sub-suction nozzle 30 may be controlled by the same robot arm to move synchronously, or may be controlled by different robot arms to move independently.

Specifically, the main suction nozzle 20 and the sub-suction nozzle 30 are both installed on the same side of the mounting member 10. The material of the first tip 21 is preferably a hard plastic such as Polyoxymethylene (POM), the material of the second tip 31 is preferably a soft material such as rubber, and the second tip 31 is preferably a suction cup. The fingerprint module 200 can be selected as a cambered side fingerprint identification module, the fingerprint module 200 comprises a steel patch 220, a circuit board 230 and an LGA210, and the steel patch 220 and the LGA210 are connected to one end of the circuit board 230 and are located on two opposite sides of the circuit board 230. The steel patch 220 is attracted by the main suction nozzle 20, and the LGA210 is supported by the carrier 300. The surface 2100 of the LGA210 connected to the bearing 300 is an arc surface, and the bearing 300 is provided with a groove corresponding to the arc surface so as to accommodate at least a portion of the LGA 210. The second suction head 31 of the sub-suction nozzle 30 can be directly sucked on the surface of the circuit board 230 by sucking the side of the circuit board 230 facing away from the carrier 300, and can also be sucked on the steel patch on the circuit board 230. Preferably, the second suction head 31 is directly sucked on the surface of the circuit board 230 facing away from the carrier 300, and not opposite to the LGA210, and the first suction head 21 is sucked on the surface of the steel patch 220 facing away from the circuit board 230. In other embodiments, the fingerprint module 200 is not provided with the steel patch 220, and the first suction head 21 can be directly sucked on the surface of the circuit board 230 opposite to the carrier 300, and is preferably opposite to the LGA 210. Of course, if LGA210 is larger in size, both first suction head 21 and second suction head 31 can be opposite to LGA 210.

Referring to fig. 1 to 3, in general, the fingerprint module 200 is easily tilted on the carrier 300 (optionally, a tray) due to the uneven mass distribution of the circuit board 230. The Circuit Board 230 can be Printed Circuit Board (Printed Circuit Board, PCB) or FPC, especially FPC, and FPC is easy to be out of shape, and this makes fingerprint module 200 slope more easily, and moreover, there is the difference in the degree of deformation of FPC among the different fingerprint modules 200, and this makes different fingerprint modules 200's degree of slope all different, and main suction nozzle 20 is difficult to adsorb the assigned position that the steel was mended 220, leads to arranging piece yield and arranges piece efficiency and all lower.

Referring to fig. 4 and 5, the sub-nozzle 30 sucks and applies a pressure perpendicular to the carrier 300 to the fingerprint module 200, the fingerprint module 200 is aligned with the carrier 300, the fingerprint module 200 is aligned with the main nozzle 20, and the main nozzle 20 can suck the fingerprint module 200 at a specific position, thereby improving the yield and efficiency of the chip arrangement.

In one embodiment, referring to fig. 5 and 6, the secondary nozzle 30 includes a stationary sleeve 32 and a movable suction rod 33. The fixed sleeve 32 is connected to the mounting member 10, and a portion of the movable suction rod 33 is received in the fixed sleeve 32 and slidably connected to the fixed sleeve 32. The second suction head 31 is connected to the side of the movable suction rod 33 facing away from the mounting 10. Specifically, a cavity 331 is formed in the movable suction rod 33, and the second suction head 31 has a suction passage 311, and the suction passage 311 communicates with the cavity 331. The suction device 100 further includes a first suction member (not shown) connected to the movable suction rod 33 and extending into the cavity 331, wherein air is drawn out from the cavity 331 to generate a negative pressure so that the second suction head 31 can suck the fingerprint module 200. By providing the fixed sleeve 32 and the movable suction rod 33, the second suction head 31 can move relative to the mounting member 10, so as to suck and apply pressure to the fingerprint module 200.

In one embodiment, referring to fig. 5 and 6, the sub-nozzle 30 further includes an elastic member 34, and the elastic member 34 is disposed in the fixing sleeve 32. The elastic member 34 includes a first end 341 and a second end 342 opposite to each other, the first end 341 is connected to the fixed sleeve 32, the second end 342 is connected to the movable suction rod 33, and the deformation direction of the elastic member 34 is the same as the moving direction of the movable suction rod 33 relative to the fixed sleeve 32. Specifically, the elastic member 34 may be a spring or a leaf spring, and is preferably a spring. Optionally, in the working process of the adsorption apparatus 100, the elastic member 34 is always in a compressed state, so that the first end 341 abuts against the fixed sleeve 32, the second end 342 abuts against the movable suction rod 33, a slotted hole (not shown) is formed in the movable suction rod 33, the fixed sleeve 32 is connected with a pin (not shown), and the pin extends into the slotted hole, so as to limit the movement distance of the movable suction rod 33, so that the elastic member 34 is always in an elastic compressed state. The slotted hole can also be arranged on the fixed sleeve 32, and the pin is arranged on the movable suction rod 33. The resilient member 34 is provided to facilitate the resetting of the second suction head 31.

In one embodiment, referring to fig. 6, the elastic member 34 is sleeved on the outer periphery of the movable suction rod 33. The first end 341 of the elastic element 34 is fixedly connected with the fixed sleeve 32, and the second end 342 is fixedly connected with the movable suction rod 33. Specifically, the elastic element 34 is sleeved on the outer periphery of a part of the movable suction rod 33 in the fixed sleeve 32. The first end 341 fits into the stationary sleeve 32 to complete the stationary connection and the second end 342 fits into the movable suction rod 33 to complete the stationary connection. It can be understood that the first end 341 of the elastic element 34 is embedded in the fixed sleeve 32, and the second end 342 is embedded in the movable suction rod 33, so that the connection mode is simple, the movable suction rod 33 can be limited, and the movable suction rod 33 is prevented from being separated from the fixed sleeve 32.

In one embodiment, referring to fig. 5 and 6, the end of the movable suction rod 33 away from the second suction head 31 is a limiting end 332, and the limiting end 332 penetrates through the fixing sleeve 32. The sub-suction nozzle 30 further comprises a limiting member 35, and the limiting member 35 is disposed at the limiting end 332 and is opposite to the surface of the fixed sleeve 32 opposite to the second suction head 31 so as to limit the second suction head 31 from moving away from the fixed sleeve 32. Specifically, the limiting member 35 may be a retaining ring, an annular clamping groove 333 is formed in the periphery of one end, facing away from the second suction head 31, of the movable suction rod 33, the limiting member 35 is clamped with the movable suction rod 33 through the clamping groove 333, and the limiting member 35 can move along the axial direction of the movable suction rod 33 relative to the clamping groove 333. The outer diameter of the limiting member 35 is larger than the inner diameter of the opening of the fixing sleeve 32 for accommodating the limiting end 332. When the second suction head 31 sucks and applies pressure to the fingerprint module 200, the limiting member 35 may be away from the fixing sleeve 32 and not connected to the fixing sleeve, and the limiting member 35 may also move along the engaging groove 333 and be connected to the fixing sleeve 32 all the time. It will be appreciated that, since the limiting member 35 is provided on the movable suction rod 33, the limiting member 35 is connected with the surface of the fixed sleeve 32 facing away from the second suction head 31, and thus the limiting member 35 has no constraint function during the process that the second suction head 31 approaches the elastic member 34 to compress the elastic member 34. When the second suction head 31 is far away from the elastic member 34 to release the elastic potential energy of the elastic member 34 to a certain extent, the second suction head 31 will abut against the surface of the fixing sleeve 32 facing away from the second suction head 31, so that the elastic member 34 cannot release the elastic potential energy continuously. Through setting up locating part 35, locating part 35 is located the activity and is inhaled pole 33 and with the fixed sleeve 32 surface connection that faces away from second suction head 31, and locating part 35 has the restraint effect to the tensile deformation of elastic component 34, can guarantee that second suction head 31 has sufficient initial elasticity to fingerprint module 200.

In other embodiments, the limiting member 35 may also be a pin, a sliding pin, or the like. The pin can be fixed on the limiting end 332 and opposite to the surface of the fixing sleeve 32 opposite to the second suction head 31, and can also realize the limiting function. When the limiting member 35 is a sliding pin, the slot 333 is in a bar shape, the extending direction of the slot 333 is the same as the axial direction of the movable suction rod 33, and the sliding pin is clamped in the slot 333 and moves relative to the axial direction of the movable suction rod 33, so that the limiting function can be realized.

In one embodiment, referring to fig. 1 and 5, when not attracting, the distance between the first suction head 21 and the mounting member 10 is smaller than the distance between the second suction head 31 and the mounting member 10. It can be understood that, the distance of first suction head 21 and installed part 10 is less than the distance of second suction head 31 and installed part 10, drives main nozzle 20 and vice nozzle 30 at installed part 10 and when fingerprint module 200 removed towards, and the distance of vice nozzle 30 and fingerprint module 200 is nearer, and second suction head 31 at first contacts with fingerprint module 200 to correct the position to fingerprint module 200 through vice nozzle 30 earlier, then adsorbs fingerprint module 200's assigned position through main nozzle 20 again.

In one embodiment, referring to fig. 1 and 7, a positioning groove 211 matched with the shape of the fingerprint module 200 is formed on a surface of the first suction head 21 of the main suction nozzle 20 facing away from the mounting member 10, the positioning groove 211 is used for accommodating the fingerprint module 200, the positioning groove 211 includes a bottom wall, a suction hole 2101 is formed on the bottom wall, and the suction hole 2101 is used for sucking the fingerprint module 200. Specifically, the positioning groove 211 is a through groove. The adsorption apparatus 100 further includes a second suction member (not shown) that communicates with the suction hole 2101. Through setting up constant head tank 211, the constant head tank 211 further corrects fingerprint module 200's position to the diapire that the suction opening 2101 was seted up to the assigned position orientation of messenger fingerprint module 200, thereby first suction head 21 can adsorb fingerprint module 200's assigned position.

In one embodiment, referring to FIG. 5, the second suction head 31 is located in the extending direction 91 of the positioning slot 332. By arranging the second suction head 31 in the extending direction of the positioning slot 332, the fingerprint module 200 can be aligned with the first suction head 21 through the second suction head 31.

In one embodiment, referring to fig. 5 and 8, the positioning slot 211 further includes a first side wall 2111 and a second side wall 2112, the first side wall 2111 includes a first edge 21111 and a second edge 21112 disposed opposite to each other, the second side wall 2112 includes a third edge 21121 and a fourth edge 21122 disposed opposite to each other, the first edge 21111 and the third edge 21121 are connected to opposite sides of the bottom wall, the distance between the second edge 21112 and the fourth edge 21122 is a first distance D1, the distance between the first edge 21111 and the third edge 21121 is a second distance D2, and the first distance D1 is greater than the second distance D2. Specifically, the first side wall 2111 and the second side wall 2112 are preferably mirror images. The number of the suction holes 2101 is plural, and the plural suction holes 2101 are provided at equal intervals. Through setting up first distance D1 and being greater than second distance D2, be favorable to constant head tank 211 to carry out further correction to fingerprint module 200's position.

In one embodiment, referring to fig. 2 and 8, the first side 2111 and the second side 2112 are stepped. Specifically, the size of the steel bar 220 is smaller than that of the LGA210, so that the shape of the positioning groove 211 corresponds to the fingerprint module 200 if the first side wall 2111 and the second side wall 2112 are both stepped. Through setting up first lateral wall 2111 and second lateral wall 2112 and all being the echelonment for the constant head tank 211 corresponds with fingerprint module 200's shape, is favorable to the constant head tank 211 to the accurate screens of fingerprint module 200.

In one embodiment, referring to fig. 5, the suction device 100 further includes at least one auxiliary suction nozzle 40. The auxiliary suction nozzle 40 comprises a third suction nozzle 41 remote from the mounting 10, the third suction nozzle 41 being located on the same side of the mounting 10 as the first suction nozzle 21. The third suction head 41 is used for adsorbing the circuit board 230 of the fingerprint module 200. Specifically, the number of the auxiliary suction nozzles 40 is plural, and the plural auxiliary suction nozzles 40 are arranged at intervals. The third suction head 41 is preferably a suction cup. Through setting up auxiliary suction nozzle 40, auxiliary suction nozzle 40 adsorbs fingerprint module 200's circuit board 230, can avoid fingerprint module 200 to break away from adsorption equipment 100, is favorable to improving the absorbent stability of adsorption equipment 100.

Referring to fig. 5, an embodiment of the present invention provides a film arranging machine for transferring a fingerprint module 200, which can be selected to transfer the fingerprint module 200 from a tray to a carrier (not shown). The sheet arranging machine comprises a mechanical arm (not shown) and the adsorption device 100 provided by the invention. The robot arm is connected to the mounting member 10 of the adsorption apparatus 100, and the robot arm drives the main suction nozzle 20 and the sub-suction nozzle 30 to move through the mounting member 10. Through adding in arranging the piece machine the utility model provides an adsorption equipment 100 arranges the piece machine and has higher row piece yield and row piece efficiency.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides an adsorption equipment of fingerprint module, adsorption equipment is used for adsorbing the fingerprint module that is located and holds on carrier, the fingerprint module with the surface that holds the contact of carrier is the cambered surface, a serial communication port, adsorption equipment includes the installed part and installs the main suction nozzle and the vice suction nozzle of installed part, main suction nozzle is including keeping away from the first suction head of installed part, vice suction nozzle is including keeping away from the second suction head of installed part, first suction head with the second suction head is located same one side of installed part, first suction head and/or the second suction head is relative the installed part is portable, the second suction head is used for adsorbing and to the orientation is applyed to the fingerprint module the pressure that holds carrier, so that the fingerprint module with first suction head is counterpointed, first suction head is used for adsorbing the fingerprint module after counterpointing.

2. The suction device as claimed in claim 1, wherein the sub-suction nozzle comprises a fixed sleeve and a movable suction rod, the fixed sleeve is connected to the mounting member, a portion of the movable suction rod is accommodated in the fixed sleeve and slidably connected to the fixed sleeve, and the second suction head is connected to a side of the movable suction rod facing away from the mounting member.

3. The suction device as claimed in claim 2, wherein the sub-nozzle further comprises an elastic member disposed in the fixed sleeve, the elastic member comprising a first end and a second end opposite to each other, the first end being connected to the fixed sleeve, and the second end being connected to the movable suction rod.

4. The suction device as claimed in claim 3, wherein the elastic member is sleeved around the movable suction rod, a first end of the elastic member is fixedly connected to the fixed sleeve, and a second end of the elastic member is fixedly connected to the movable suction rod.

5. The suction device according to claim 2, wherein an end of the movable suction rod away from the second suction head is a limiting end, the limiting end is inserted into the fixed sleeve, and the secondary suction nozzle further comprises a limiting member, the limiting member is disposed at the limiting end and is opposite to a surface of the fixed sleeve facing away from the second suction head, so as to limit the second suction head from moving away from the fixed sleeve.

6. A suction device according to claim 1, wherein the first suction head is at a distance from the mounting member which is less than the distance from the second suction head to the mounting member when not being sucked.

7. The absorption apparatus as claimed in claim 1, wherein a surface of the main suction nozzle facing away from the mounting member is provided with a positioning groove adapted to the shape of the fingerprint module, the positioning groove is used for accommodating the fingerprint module, the positioning groove includes a bottom wall, the bottom wall is provided with a suction hole, and the suction hole is used for absorbing the fingerprint module.

8. The suction device according to claim 7, wherein the second suction head is located in an extending direction of the positioning groove.

9. The suction device as claimed in claim 1, further comprising at least one auxiliary suction nozzle, wherein the auxiliary suction nozzle comprises a third suction head which is far away from the mounting part, the third suction head is positioned on the same side of the mounting part as the first suction head, and the third suction head is used for sucking a circuit board of the fingerprint module.

10. A chip arranging machine, comprising a mechanical arm and the suction device as claimed in any one of claims 1 to 9, wherein the mechanical arm is connected with a mounting part of the suction device, and the mechanical arm drives the main suction nozzle and the auxiliary suction nozzle to move through the mounting part.

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