Thin and thick PCB (Printed Circuit Board) universal suction cup type board collecting and releasing device

Abstract

The utility model discloses a thin and thick PCB universal suction cup type board collecting and releasing device which comprises a fixed rail, two suction cup assemblies symmetrically arranged on the fixed rail and a vacuum suction board arranged on the fixed rail and located between the two suction cup assemblies. Each suction cup assembly comprises a plurality of first suction cups with the outer diameter being 8 mm, and the length size and the width size of the vacuum suction plate are both 150 mm. The large-size vacuum suction plate and the small-size suction cup are arranged at the same time, the vacuum suction plate can be closed or opened when thick plates or thin plates are sucked, and the quality problems that the plates fall off due to insufficient suction force and two plates are sucked and the plates are collapsed and scratched due to the fact that the suction force is too large when the thin plates are produced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum adsorption, and in particular relates to a universal suction cup type PCB retractable device for thin and thick PCBs. Background Art

[0002] In the process of printed circuit manufacturing, the conventional method is: cutting → inner layer → inner layer AOI → drilling → browning → copper plating → etching → outer layer AOI → outer layer → solder mask → character → surface treatment → molding

[0003] Among them, the inner layer, inner layer AOI, browning, outer layer AOI, outer layer, solder mask, and molding involve automatic suction cup board loading and unloading machines, which need to use suction cup board loading and unloading machines to transfer circuit boards between various processes.

[0004] The suction nozzles on the existing suction cup retractor are generally used in the form of a small suction nozzle or a large suction nozzle. However, the use of a small or large suction nozzle alone has the following defects:

[0005] 1. Use a small suction nozzle. The suction force of each nozzle is 0.33-0.87kg. When producing thick plates, it is easy to cause the plate to fall due to insufficient suction force.

[0006] 2. Use a large suction nozzle. The suction force of each nozzle is 5.15kg. When producing thick plates, the greater suction force can avoid the problem of falling plates. However, there will be pressure relief when sucking on the holes in the plates, which may cause the plates to be missed. When producing thin or soft plates, due to excessive suction, there is a quality risk of sucking two plates at the same time and the plates collapsing and scratching. Utility Model Content

[0007] The purpose of the utility model is to overcome the existing technical defects and provide a universal suction cup type PCB retracting and unloading device for thin and thick PCBs. At the same time, a large-sized vacuum suction plate and a small-sized suction cup are provided. When sucking thick or thin plates, the vacuum suction plate can be closed or opened, thereby solving the problem of plates falling due to insufficient suction and the quality problem of sucking two plates and plate collapse and scratching due to excessive suction when producing thin plates.

[0008] In order to solve the above technical problems, the utility model provides a universal suction cup type retractable plate device for thin and thick PCBs, comprising a fixed rail, two suction cup assemblies symmetrically arranged on the fixed rail, and a vacuum suction plate arranged on the fixed rail and located between the two suction cup assemblies; each suction cup assembly includes several first suction cups with an outer diameter of 8 mm, and the length and width of the vacuum suction plate are both 150 mm.

[0009] Furthermore, the suction cup assembly also includes a hollow fixed tube with a cavity inside, the hollow fixed tube is movably arranged on the fixed rail and perpendicular to the fixed rail, the first suction cup is arranged at the bottom of the hollow fixed tube at intervals from front to back, and each first suction cup is connected to the cavity inside the hollow fixed tube.

[0010] Furthermore, a connection hole communicating with the internal cavity is provided on the top or side of the hollow fixing tube.

[0011] Furthermore, the suction cup assembly also includes a fixing seat arranged on the fixing rail and perpendicular to the fixing rail, the hollow fixing tube is arranged on the fixing seat for sliding up and down through at least two bolts, and a first elastic member is provided between the hollow fixing tube and the fixing seat and is sleeved on the outside of the bolt.

[0012] Furthermore, at least two outwardly extending fixing plates are provided on the top of the fixing seat, through holes are provided on the fixing plates for the bolts to pass through, and the first elastic member is provided between the fixing plates and the hollow fixing tube.

[0013] Furthermore, a transfer seat is provided at the upper end of the hollow fixing tube, and the transfer seat is provided with at least two threaded holes that are threadedly connected to the bolts in a one-to-one correspondence.

[0014] Furthermore, the suction cup assembly also includes at least two second suction cups respectively arranged at the front and rear ends of the fixing seat, and the outer diameter of the second suction cup is larger than the outer diameter of the first suction cup.

[0015] Furthermore, at least two mounting seats are provided on the inner side of the fixing seat, a mounting plate is provided on the mounting seat, a straw is passed through the mounting plate, and the lower end of the straw is provided with the second suction cup.

[0016] Furthermore, the vacuum suction plate is movably arranged on the fixed rail through a floating seat, and the floating seat includes a first seat body movably arranged at the bottom of the fixed rail and a second seat body connected to the bottom of the first seat body by a screw, and the second seat body can slide up and down relative to the screw, and a second elastic member is provided between the first seat body and the second seat body and is sleeved on the outside of the screw; the vacuum suction plate is fixed to the bottom of the second seat body, and a plurality of adsorption holes are provided at the bottom of the vacuum suction plate.

[0017] Furthermore, the thin and thick PCB universal suction cup type plate receiving and releasing device also includes a vacuum generator provided on the second base body and connected to the adsorption hole.

[0018] Furthermore, the thin and thick PCB universal suction cup type plate receiving and releasing device also includes a six-axis industrial robot for driving the fixed rail to move.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, a large-sized vacuum suction plate and a small-sized suction cup are provided at the same time. The small-sized suction cup is in the open state no matter it is adsorbing thick plates or thin plates. When adsorbing thick plates, extra-long plates (length ≥ 1249mm), and heavy plates (≥ 10kg), the middle vacuum suction plate is turned on synchronously to increase the suction force on the plates, solving the problem of plates falling due to insufficient suction during the production of thick plates. When adsorbing thin plates (plate thickness ≤ 0.5mm) and soft plates, the middle vacuum suction plate is closed, and only the suction cups on both sides are used to adsorb the plates, thereby reducing the suction force on the plates, solving the quality problem of two plates being adsorbed and plates collapsing and scratching due to excessive suction during the production of thin plates.

[0021] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 Schematic diagram of a universal suction cup type PCB retracting and placing device for thin and thick PCBs in an embodiment;

[0024] Figure 2 This is a front view of a universal suction cup type plate retracting and placing device for thin and thick PCBs in an embodiment;

[0025] Figure 3 A side view of a universal suction cup PCB retractable device for thin and thick PCBs in an embodiment;

[0026] Figure 4 A bottom view of a universal suction cup PCB retractable device for thin and thick PCBs in an embodiment;

[0027] Figure 5 Schematic diagram of another embodiment of the connection between a universal suction cup type plate receiving and releasing device for thin and thick PCBs and a six-axis industrial robot. DETAILED DESCRIPTION

[0028] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments. It should be noted that if there are descriptions such as "first" and "second" in the text, they are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to different types.

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work shall fall within the scope of protection of the present invention.

[0030] Example

[0031] like Figures 1 to 4 As shown, the universal suction cup type retractable plate device for thin and thick PCBs shown in this embodiment includes a fixed rail 1, two suction cup assemblies symmetrically arranged on the fixed rail 1, and a vacuum suction plate 2 arranged on the fixed rail 1 and located between the two suction cup assemblies; each suction cup assembly includes a plurality of first suction cups 3 with an outer diameter of 8 mm, and the length and width of the vacuum suction plate 2 are both 150 mm; when in use, the first suction cup is connected to an external vacuum generator.

[0032] In one embodiment, the model of the vacuum generator is VTM30-C, and its maximum suction capacity is 215 L / min; the suction volume required by a single first suction cup is 4 L / min; and the maximum suction force of a single 8 mm first suction cup is 0.7 N.

[0033] In the above, the suction cup type plate retracting and unloading device is provided with a large-sized vacuum suction plate and a small-sized suction cup. The small-sized suction cup is in the open state regardless of whether it is adsorbing thick plates or thin plates. When adsorbing thick plates, extra-long plates (length ≥ 1249mm), and heavy plates (≥ 10kg), the middle vacuum suction plate is turned on simultaneously to increase the suction force on the plates, solving the problem of plates falling due to insufficient suction during the production of thick plates. When adsorbing thin plates (plate thickness ≤ 0.5mm) and soft plates, the middle vacuum suction plate is closed, and only the suction cups on both sides are used to adsorb the plates, thereby reducing the suction force on the plates, solving the quality problem of two plates being adsorbed and plates collapsing and scratching due to excessive suction during the production of thin plates.

[0034] In one embodiment, the suction cup assembly also includes a hollow fixed tube 4 having a cavity 40 therein, and a connecting hole 41 is provided on the top or side of the hollow fixed tube 4, which is connected to the internal cavity 40 and is used to connect to an external vacuum generator; the hollow fixed tube 4 is movably arranged on the fixed rail 1 and is arranged perpendicular to the fixed rail 1, and the first suction cup 3 is arranged at the bottom of the hollow fixed tube 4 at intervals from front to back, and each first suction cup 3 is connected to the cavity 40 inside the hollow fixed tube 4, thereby realizing the synchronous adsorption effect of all first suction cups through the cavity in the hollow fixed tube.

[0035] In one embodiment, the length of the hollow fixing tube 4 is preferably 600 mm, the width is preferably 15 mm, and 24 first suction cups are equidistantly spaced at the bottom thereof.

[0036] In one embodiment, the suction cup assembly also includes a fixing seat 42 provided on the fixing rail 1 and perpendicular to the fixing rail 1. The hollow fixing tube 4 is slid up and down on the fixing seat 42 by two bolts 43 provided in the front and rear, and a first elastic member 44 is provided between the hollow fixing tube 4 and the fixing seat 42 and is sleeved on the outside of the bolt 43, so that an elastic connection structure is formed between the hollow fixing tube 4 and the fixing seat 42 to avoid excessive pressure on the plate when the first suction cup moves down to suck the plate, thereby preventing damage to the plate.

[0037] In one embodiment, a fixing plate 45 extending vertically outward is provided at the top of the front and rear ends of the fixing seat 42, and a through hole (not shown in the figure) is provided on the fixing plate 45 for the bolt 43 to pass through. That is, the hollow fixing tube 4 and the first suction cup are arranged on the outside of the fixing seat 42 through the fixing plate 45, and the bolt and the hollow fixing tube 4 can slide up and down relative to the fixing plate 45 by utilizing the through hole; the first elastic member 44 is arranged between the fixing plate 45 and the hollow fixing tube 4.

[0038] In one embodiment, an adapter seat 46 is provided at the upper end of the hollow fixing tube 4, and two threaded holes (not shown in the figure) are provided on the adapter seat 46, which are threadedly connected to the bolts 43 at the front and rear ends in a one-to-one correspondence. The threaded connection relationship facilitates the assembly and disassembly of the hollow fixing tube and the first elastic member.

[0039] In one embodiment, the suction cup assembly also includes two second suction cups 5 respectively arranged on the inner sides of the front and rear ends of the fixing seat 42. The outer diameter of the second suction cup 5 is larger than the outer diameter of the first suction cup 3. When adsorbing a plate of relatively small size, the vacuum suction plate and the second suction cup can be turned on simultaneously to adsorb the plate, while the first suction cup is turned off.

[0040] In one embodiment, two mounting seats 47 are provided on the inner side of the fixing seat 42, and a mounting plate 48 is provided on the mounting seat 47. A suction pipe 49 connected to an external vacuum generator is passed through the mounting plate 48, and the lower end of the suction pipe 49 is connected to a second suction cup 5. In this structure, each second suction cup is an independent adsorption structure. When one of the second suction nozzles fails to be sucked on the through hole on the board, the suction force of the other second suction cups is independent and can remain unchanged, thereby preventing the problem of the board falling off.

[0041] In one embodiment, the vacuum suction plate 2 is movably arranged on the fixed rail 1 through a floating seat. The floating seat includes a first seat body 61 movably arranged at the bottom of the fixed rail 1 and a second seat body 63 connected to the bottom of the first seat body 61 by a screw 62, and the second seat body 63 can slide up and down relative to the screw 62. A second elastic member 64 is provided between the first seat body 61 and the second seat body 63 and is sleeved on the outside of the screw 62, so that the second seat body forms an elastic floating structure; the vacuum suction plate 2 is fixed to the bottom of the second seat body 63, and accordingly, the vacuum suction plate 2 elastically floats up and down with the second seat body to avoid excessive pressure on the plate when the vacuum suction plate moves down to suck the plate, thereby avoiding damage to the plate.

[0042] In one embodiment, a plurality of suction holes 21 are provided on the bottom of the vacuum suction plate 2 .

[0043] In one embodiment, the suction cup type retractable plate device further includes a vacuum generator 6 disposed on the second base 63 and connected to the adsorption hole 21 , and the vacuum generator is used to generate vacuum suction.

[0044] In one embodiment, the air flow rate of the vacuum suction plate when working is preferably 200 L / min, and the suction force generated is preferably 100 N.

[0045] In another embodiment, Figure 5 As shown, the suction cup type retractable plate device further includes a six-axis industrial robot 7 connected to the fixed rail 1 and used to drive the fixed rail 1 to move. The six-axis industrial robot 7 is used to realize the free movement and rotation of the suction cup type retractable plate device.

[0046] In other embodiments, the first elastic member and the second elastic member are both springs.

[0047] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A universal suction cup type PCB receiving and releasing device for thin and thick PCBs, characterized in that: It includes a fixed rail, two suction cup assemblies symmetrically arranged on the fixed rail, and a vacuum suction plate arranged on the fixed rail and located between the two suction cup assemblies; each suction cup assembly includes a plurality of first suction cups with an outer diameter of 8mm, and the length and width of the vacuum suction plate are both 150mm.

2. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 1, characterized in that: The suction cup assembly also includes a hollow fixed tube with a cavity inside, and the top or side of the hollow fixed tube is provided with a connecting hole connected to the internal cavity; the hollow fixed tube is movably arranged on the fixed rail and is perpendicular to the fixed rail, and the first suction cups are arranged at intervals from front to back at the bottom of the hollow fixed tube, and each first suction cup is connected to the cavity inside the hollow fixed tube.

3. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 2, characterized in that: The suction cup assembly also includes a fixing seat arranged on the fixing rail and perpendicular to the fixing rail, the hollow fixing tube is slidably arranged on the fixing seat by at least two bolts, and a first elastic member sleeved on the outside of the bolts is arranged between the hollow fixing tube and the fixing seat.

4. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 3, characterized in that: At least two fixing plates extending outward are arranged on the top of the fixing seat, and through holes for the bolts to pass through are arranged on the fixing plates. The first elastic member is arranged between the fixing plates and the hollow fixing tube.

5. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 4, characterized in that: An adapter seat is provided at the upper end of the hollow fixing tube, and the adapter seat is provided with at least two threaded holes which are threadedly connected with the bolts in a one-to-one correspondence.

6. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 5, characterized in that: The suction cup assembly also includes at least two second suction cups respectively arranged at the front and rear ends of the fixing seat, and the outer diameter of the second suction cup is greater than the outer diameter of the first suction cup.

7. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 6, characterized in that: At least two mounting seats are arranged on the inner side of the fixing seat, a mounting plate is arranged on the mounting seat, a straw is passed through the mounting plate, and the lower end of the straw is provided with the second suction cup.

8. The universal suction cup type plate receiving and placing device for thin and thick PCBs according to any one of claims 1 to 7, characterized in that: The vacuum suction plate is movably arranged on the fixed rail through a floating seat, and the floating seat includes a first seat body movably arranged at the bottom of the fixed rail and a second seat body connected to the bottom of the first seat body by screws, and the second seat body can slide up and down relative to the screws, and a second elastic member is arranged between the first seat body and the second seat body and is sleeved on the outside of the screws; the vacuum suction plate is fixed to the bottom of the second seat body, and a plurality of suction holes are arranged at the bottom of the vacuum suction plate.

9. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 8, characterized in that: It also includes a vacuum generator which is arranged on the second seat body and communicated with the adsorption hole.

10. The thin and thick PCB universal suction cup type board receiving and placing device as claimed in claim 1, characterized in that: It also includes a six-axis industrial robot for driving the fixed rail movement.

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