Sucking disc for PCB automatic target drilling

Abstract

The utility model discloses a sucker used for PCB automatic target drilling, comprising a sucker assembly, a sucker main body connected with an external inflation pipeline, and a suction nozzle connected with the bottom of the sucker main body; the adjusting mechanism comprises a first connecting plate with the bottom end installed on the suction cup body, a lifting air cylinder with the top end installed on the first connecting plate, a connecting box connected with the bottom end of the lifting air cylinder, an adjusting air cylinder installed on the surface opposite to the connecting box, and a second connecting plate connected with the other end of the adjusting air cylinder. The shielding frame is arranged on the outer side of the suction cup body in a sleeving mode, and a drawing plate connected with the second connecting plate is connected to the shielding frame in a sliding mode; the suction cup is not provided with a design for shielding the suction nozzle opening and preventing grease substances or dust from making contact with the suction nozzle opening, the lifting air cylinder enables the shielding frame to move upwards, then the air cylinder is adjusted to enable the second connecting plate and the drawing plate to slide in the same direction, and the shielding frame and the drawing plate prevent the grease substances or dust from making contact with the suction nozzle and can prevent the grease substances or dust from making contact with the suction nozzle.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB drilling target processing, and particularly relates to a suction cup for automatic PCB drilling target. Background Art

[0002] During the PCB production and processing process, there is a processing technology of drilling and targeting. The drilled target holes play a role in alignment when multi-layer boards are laminated and pressed. In addition, the target holes are also used to form suitable pins or connecting lines for various components on the PCB board to increase the heat dissipation effect, etc. PCB targeting generally adopts the principle of laser drilling. The PCB board is moved by a suction cup, and the machine vision system is used to identify the target and accurately position it. At the same time, a laser rangefinder is used for distance measurement, and then the automatic control system commands the laser drilling unit to perform precise drilling to complete automatic drilling and targeting;

[0003] The pneumatic vacuum suction cup is a commonly used suction cup in PCB drilling and targeting processing. When the pneumatic vacuum suction cup is in use, the suction nozzle of the suction cup needs to be in contact with the PCB. During long-term use, the surface of the exposed suction nozzle will adhere to grease substances or dust, thereby reducing its adsorption performance, and the adhered dust may wear the surface of the PCB; when the pneumatic vacuum suction cup is in use, there is a problem that there is no design on the suction cup to block the suction nozzle to prevent grease substances or dust from contacting the suction nozzle. For this reason, this application proposes a suction cup for automatic PCB drilling target. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a suction cup for automatic PCB drilling target to solve the problem that there is no design on the suction cup to block the suction nozzle to prevent grease substances or dust from contacting the suction nozzle as proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A suction cup for automatic PCB drilling target, comprising

[0006] a suction cup assembly, including a suction cup main body connected to an external air inflation pipeline and a suction nozzle connected to the bottom of the suction cup main body;

[0007] an adjusting mechanism, including a first connecting plate installed at the bottom end on the suction cup main body, a lifting cylinder installed at the top end on the first connecting plate, a connecting box connected to the bottom end of the lifting cylinder, an adjusting cylinder installed on the opposite surfaces of the connecting box, and a second connecting plate connected to the other end of the adjusting cylinder;

[0008] a shielding frame sleeved outside the suction cup main body, and a pull plate slidably connected to the shielding frame and connected to the second connecting plate.

[0009] Preferably, the first connecting plate and the second connecting plate are in an "L" shape, the lifting cylinder is perpendicular to the adjusting cylinder, and the connecting box is connected to the side surface of the shielding frame.

[0010] Preferably, a limiting bent plate with a frame structure is provided on the inner side wall of the shielding frame, and the cross-section of the limiting bent plate is a curved shape.

[0011] Preferably, an air inlet nozzle penetrates through the outer surface of the shielding frame, an airbag is provided between the shielding frame and the limiting bent plate, and the air inlet nozzle is communicated with the airbag.

[0012] Preferably, the distance between the drawing plate and the suction nozzle is 1 centimeter.

[0013] Preferably, a protection component is arranged on the bottom surface of the suction cup main body, and the protection component includes a stabilizing frame installed on the suction cup main body, an elastic plate with the top end connected to the stabilizing frame, a connecting frame connected to the bottom end of the elastic plate, and a protection pad frame installed on the outer side of the connecting frame.

[0014] Preferably, the stabilizing frame, the connecting frame and the protection pad frame are of a frame structure, the elastic plate is of a curved shape, and a bent horizontal plate is provided at the top end where the elastic plate is connected to the stabilizing frame.

[0015] Preferably, an inwardly concave frame groove is formed on the outer surface of the connecting frame, the cross-section of the protection pad frame is an "L" - shaped structure, and a protrusion for embedding into the frame groove is provided on the protection pad frame.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, there is no design on the suction cup to block the suction nozzle opening to prevent grease - like substances or dust from contacting the suction nozzle opening. The lifting air cylinder moves the shielding frame upward, and then the adjusting air cylinder makes the second connecting plate and the drawing plate slide in the same direction. The shielding frame and the drawing plate prevent grease - like substances or dust from contacting the suction nozzle, and can prevent grease - like substances or dust from contacting the suction nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic side - view structural diagram of the shielding frame of the present utility model;

[0020] Figure 3 is of the present utility model Figure 2 a top - view structural diagram of the shielding frame therein;

[0021] Figure 4 is a schematic cross - sectional structural diagram of the shielding frame of the present utility model;

[0022] Figure 5 is of the present utility model Figure 2 an enlarged structural diagram of part C therein;

[0023] Figure 6Schematic cross-sectional structure diagram of the protective pad frame of the present utility model;

[0024] In the figure: 4, shielding frame; 11, suction cup body; 12, suction nozzle; 21, first connecting plate; 22, lifting cylinder; 31, connecting box; 32, adjusting cylinder; 33, second connecting plate; 41, draw plate; 42, air inlet nozzle; 43, limiting bent plate; 44, airbag; 51, stabilizing frame; 52, elastic plate; 53, protective pad frame; 54, connecting frame; 531, protrusion. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: A suction cup for automatic PCB drilling target, including a suction cup assembly, including a suction cup body 11 connected to an external inflation pipeline and a suction nozzle 12 connected to the bottom of the suction cup body 11. The principle of the suction cup body 11 and the suction nozzle 12 for adsorbing the PCB board B is a conventional technology, and this application will not be described in detail; an adjustment mechanism, including a first connecting plate 21 installed at the bottom end on the suction cup body 11, a lifting cylinder 22 installed at the top end on the first connecting plate 21, a connecting box 31 connected to the bottom end of the lifting cylinder 22, an adjusting cylinder 32 installed on the opposite surfaces of the connecting box 31, and a second connecting plate 33 connected to the other end of the adjusting cylinder 32. The first connecting plate 21 is combined with the suction cup body 11 and the lifting cylinder 22 by conventional methods. The adjusting cylinder 32 runs along the b direction and changes to an extended state, so that the second connecting plate 33 moves along the A direction. The lifting cylinder 22 runs in the reverse direction along the a direction and changes to a shortened state, which can move the shielding frame 4 upward and expose the suction nozzle 12, without affecting the suction nozzle 12 to adsorb the PCB board B. On the contrary, the lifting cylinder 22 runs along the a direction and moves the shielding frame 4 downward. The adjusting cylinder 32 runs in the reverse direction along the b direction, so that the draw plate 41 slides in the reverse direction along the A direction, and the draw plate 41 covers the suction nozzle 12, which can prevent grease-like substances or dust from contacting the suction nozzle 12; a shielding frame 4 sleeved outside the suction cup body 11, and a draw plate 41 slidably connected to the shielding frame 4 and connected to the second connecting plate 33. The shielding frame 4 and the draw plate 41 prevent grease-like substances or dust from contacting the suction nozzle 12.

[0028] In this embodiment, the first connecting plate 21 and the second connecting plate 33 are in an "L" shape. The lifting air cylinder 22 is perpendicular to the adjusting air cylinder 32. The connecting box 31 is connected to the side surface of the shielding frame 4, and the connecting box 31 and the shielding frame 4 move up and down in the same direction.

[0029] In this embodiment, a limiting bent plate 43 with a frame structure is provided on the inner side wall of the shielding frame 4. The cross-section of the limiting bent plate 43 is in a curved shape. An air inlet nozzle 42 penetrates through the outer surface of the shielding frame 4. An airbag 44 is provided between the shielding frame 4 and the limiting bent plate 43. The air inlet nozzle 42 is communicated with the airbag 44. An external conventional inflation device, such as an air pump, is connected to the air inlet nozzle 42 to inflate the airbag 44 to make it expand. The airbag 44 is closely attached to the outer surface of the suction cup main body 11, so as to shield the gap between the top end of the shielding frame 4 and the suction cup main body 11 and prevent dust and impurities from entering.

[0030] In this embodiment, the distance between the draw plate 41 and the suction nozzle 12 is 1 cm. At this time, the draw plate 41 covers the opposing suction nozzle 12, which can prevent grease substances or dust from contacting the suction nozzle 12.

[0031] In summary: The lifting air cylinder 22 moves the shielding frame 4 upward. Then, the adjusting air cylinder 32 makes the second connecting plate 33 slide in the reverse direction of the b direction, and the draw plate 41 slides in the reverse direction of the A direction. The draw plate 41 covers the suction nozzle 12, which can prevent grease substances or dust from contacting the suction nozzle 12.

[0032] Embodiment 2

[0033] Please refer to Figures 1 to 6 , which is the second embodiment of the present utility model. Based on the previous embodiment, in order to enhance the protection effect, a protection component is provided on the bottom surface of the suction cup main body 11. The protection component includes a stabilizing frame 51 installed on the suction cup main body 11, a spring plate 52 with its top end connected to the stabilizing frame 51, a connecting frame 54 connected to the bottom end of the spring plate 52, and a protection pad frame 53 installed on the outside of the connecting frame 54. The distance between the protection pad frame 53 and the suction nozzle 12 is 2 mm. The protection pad frame 53 is made of a soft rubber material, and the spring plate 52 is made of spring steel material. When the suction nozzle 12 adsorbs the PCB board B, the protection pad frame 53 first contacts the PCB board B, avoiding the rigid collision between the suction nozzle 12 and the PCB board B. The movement of the protection pad frame 53 and the deformation of the spring plate 52 do not affect the adsorption of the PCB board B by the suction nozzle 12. The elastic force of the spring plate 52 is much smaller than the adsorption force of the suction nozzle 12 and will not loosen the PCB board B.

[0034] In this embodiment, the stabilizing frame 51, the connecting frame 54 and the protective pad frame 53 are border structures. The elastic plate 52 is in a bent shape. A bent horizontal plate is provided at the top end where the elastic plate 52 is connected to the stabilizing frame 51. A concave frame groove is formed on the outer surface of the connecting frame 54. The cross-section of the protective pad frame 53 is an "L" - shaped structure. A protrusion 531 that fits into the frame groove is provided on the protective pad frame 53. The protective pad frame 53 and the connecting frame 54 are of a split structure, which is convenient for replacing the protective pad frame 53.

[0035] In summary, when the nozzle 12 adsorbs the PCB board B, the protective pad frame 53 contacts the PCB board B first, avoiding the rigid collision between the nozzle 12 and the PCB board B. The movement of the protective pad frame 53 and the deformation of the elastic plate 52 do not affect the adsorption of the PCB board B by the nozzle 12. The elastic force of the elastic plate 52 is much smaller than the adsorption force of the nozzle 12 and will not loosen the PCB board B.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suction cup for PCB automatic drilling target, characterized by: include A suction cup assembly comprises a suction cup body (11) connected to an external inflation pipe and a suction nozzle (12) connected to the bottom of the suction cup body (11); The adjusting mechanism comprises a first connecting plate (21) whose bottom end is mounted on the suction cup body (11), a lifting cylinder (22) whose top end is mounted on the first connecting plate (21), a connecting box (31) connected to the bottom end of the lifting cylinder (22), an adjusting cylinder (32) mounted on the opposite surface of the connecting box (31), and a second connecting plate (33) connected to the other end of the adjusting cylinder (32); A shielding frame (4) is sleeved on the outside of the suction cup body (11), and a pull-out plate (41) connected to the second connecting plate (33) is slidably connected to the shielding frame (4).

2. A suction cup for PCB automatic drilling target according to claim 1, characterized in that: The first connecting plate (21) and the second connecting plate (33) are of an "L"-shaped structure, the lifting cylinder (22) vertically adjusts the cylinder (32), and the connecting box (31) is connected to the side of the shielding frame (4).

3. The suction cup for PCB automatic drilling target according to claim 1, characterized in that: The inner side wall of the shielding frame (4) is provided with a limiting bent plate (43) of a frame structure, and the cross section of the limiting bent plate (43) is a curved shape.

4. The suction cup for PCB automatic drilling target according to claim 3, characterized in that: An air inlet nozzle (42) penetrates the outer surface of the shielding frame (4), an air bag (44) is provided between the shielding frame (4) and the limiting bent plate (43), and the air inlet nozzle (42) is in communication with the air bag (44).

5. The suction cup for PCB automatic drilling target according to claim 1, characterized in that: The distance between the pull-out plate (41) and the suction nozzle (12) is 1 cm.

6. The suction cup for PCB automatic drilling target according to claim 1, characterized in that: A protective component is provided on the bottom surface of the suction cup body (11), the protective component comprising a stabilizing frame (51) mounted on the suction cup body (11), a spring plate (52) connected to the stabilizing frame (51) at the top, a connecting frame (54) connected to the bottom end of the spring plate (52), and a protective pad frame (53) mounted on the outside of the connecting frame (54).

7. The suction cup for PCB automatic drilling target according to claim 6, characterized in that: The stabilizing frame (51), the connecting frame (54) and the protective pad frame (53) are frame structures, the spring plate (52) is in a curved shape, and a bent horizontal plate is provided at the top where the spring plate (52) is connected to the stabilizing frame (51).

8. The suction cup for PCB automatic drilling target according to claim 7, characterized in that: An outer surface of the connection frame (54) is provided with an inwardly concave frame groove, the cross section of the protection cushion frame (53) is an "L"-shaped structure, and a protrusion (531) embedded in the frame groove is provided on the protection cushion frame (53).

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