CN220933047U

CN220933047U - PCB clamping assembly and PCB detection equipment

Info

Publication number: CN220933047U
Application number: CN202322769712.7U
Authority: CN
Inventors: 易恒伟; 罗雪峰
Original assignee: Shenzhen Xinhengtian Electronics Co ltd
Current assignee: Shenzhen Xinhengtian Electronics Co ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-05-10
Anticipated expiration: 2033-10-16

Abstract

The utility model discloses a PCB clamping assembly and PCB detection equipment, wherein the PCB clamping assembly comprises a clamping plate, a guide unit and a plurality of sucker units arranged around the guide unit are arranged on the clamping plate; the sucker unit comprises a negative pressure interface arranged towards the guide unit; the guide unit is provided with a guide hole in a straight hole shape at a position corresponding to the negative pressure interface, and one end of the guide hole, which is far away from the negative pressure interface, is provided with a diversion unit; the shunt opening of the shunt unit is communicated with a shunt air pipe, and the shunt air pipe passes through the guide hole and is communicated with the corresponding negative pressure interface. Wherein, the suction cup unit generates negative pressure through the negative pressure equipment and the air pipe which are communicated with the current collecting port of the current distribution unit and the current distribution function of the current distribution unit; in the process, the split air pipe is limited by the linear guide hole, so that the inlet section of the sucker unit is ensured to be linear, the air flow at the inlet is ensured not to be reversely folded or spread, the stability of negative pressure is ensured, and the clamping stability of the PCB is improved.

Description

PCB clamping assembly and PCB detection equipment

Technical Field

The utility model relates to the field of PCB forming structures, in particular to a PCB clamping assembly and PCB detection equipment.

Background

The PCB (Printed Circuit Board ) is a core component of the electronic device and is used as a carrier part of a circuit to play roles of electric connection and signal transmission; at present, in the production and processing process of the PCB, a plurality of detection procedures are involved, and at this time, the PCB needs to be put into corresponding detection equipment through a fixture to detect the PCB.

The clamp comprises a mounting frame arranged at the tail end of the manipulator, a plurality of suckers are arranged on the mounting frame, the suckers are pneumatic elements with sealing lips, a temporary sealing space is formed after the suckers are contacted with a sucked object, and the pneumatic elements work by pumping air in the sealing space to generate internal and external pressure differences; the suction cup is generally connected with negative pressure equipment through an air pipe, and negative pressure is generated through the negative pressure equipment, so that the suction cup can adsorb the PCB.

Wherein, the trachea is mainly in manipulator end and with sucking disc intercommunication through the fixed form ligature of ribbon, and when in actual use, the trachea is the arcuation with the intercommunication part of sucking disc usually, and the air current of sucking disc entrance can appear turning over or diffusion this moment, leads to the negative pressure unstable, and then leads to PCB's centre gripping stability poor.

Disclosure of utility model

The utility model aims to provide a PCB clamping assembly and PCB detection equipment, which solve the problem of poor clamping stability of the current PCB.

To achieve the purpose, the utility model adopts the following technical scheme:

A PCB clamping assembly comprises a clamping plate, wherein a guide unit and a plurality of sucker units arranged around the guide unit are arranged on the clamping plate;

The sucker unit comprises a negative pressure interface arranged towards the guide unit; the guide unit is provided with a guide hole in a straight hole shape at a position corresponding to the negative pressure interface, and one end of the guide hole, which is far away from the negative pressure interface, is provided with a flow dividing unit;

The shunt opening of the shunt unit is communicated with a shunt air pipe, the shunt air pipe passes through the guide hole and is communicated with the corresponding negative pressure interface, and the current collecting opening of the shunt unit is used for being communicated with negative pressure equipment.

Optionally, the clamping plate is further provided with a flange seat, and the flange seat is used for connecting a movable shaft capable of moving in space.

Optionally, the flange seat comprises an annular shaft connecting part, a connecting block is formed on the outer side of the shaft connecting part, and the clamping plate is provided with an avoidance hole;

The connecting block is arranged on the hole edge of the avoidance hole, and the shaft connecting part penetrates through the avoidance hole.

Optionally, the connecting block, the guiding unit and the negative pressure interface are located on the same side of the clamping plate;

The connecting block is abutted to the clamping plate by the guide unit.

Optionally, a first avoiding groove is formed in the position, corresponding to the connecting block, of the guiding unit, and a second avoiding groove is formed in the position, corresponding to the shunting unit, of the guiding unit; the first avoiding groove and the second avoiding groove are separated by a stop block protruding inwards.

Optionally, the sucker unit comprises a movable threaded rod, a movable nut is connected to the movable threaded rod in a threaded manner, and a movable groove is formed in the clamping plate at a position corresponding to the sucker unit;

The movable groove is positioned between the negative pressure interface and the movable nut, the movable threaded rod penetrates through the movable groove, and the movable nut is used for being abutted to the edge of the notch of the movable groove so as to fix the position and the rotation angle of the sucker unit relative to the movable groove.

Optionally, the extending direction of the movable groove is the length direction of the clamping plate.

A PCB inspection apparatus comprising a PCB clamping assembly as described above.

Compared with the prior art, the utility model has the following beneficial effects:

According to the PCB clamping assembly and the PCB detection device, the PCB clamping assembly is communicated with the current collecting port of the current dividing unit through the negative pressure device and the air pipe, and negative pressure is generated at each current dividing port and the current dividing air pipe through the current dividing action of the current dividing unit, so that the sucker unit generates negative pressure; in the process, the split air pipe is limited by the linear guide hole, so that the inlet section of the sucker unit is ensured to be linear, the air flow at the inlet is ensured not to be reversely folded or spread, the stability of negative pressure is ensured, and the clamping stability of the PCB is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.

Fig. 1 is an overall schematic diagram of a PCB clamping assembly according to an embodiment of the present utility model;

fig. 2 is an exploded view of a PCB clamping assembly according to an embodiment of the present utility model;

Fig. 3 is a schematic cross-sectional view of a PCB clamping assembly according to an embodiment of the present utility model;

Illustration of: 10. a clamping plate; 11. a movable groove; 12. avoidance holes; 20. a guide unit; 21. a guide hole; 22. a first avoidance groove; 23. a second avoidance groove; 24. a stop block; 30. a suction cup unit; 31. a negative pressure interface; 32. a movable threaded rod; 33. a movable nut; 40. a flange seat; 41. a shaft connection portion; 42. and (5) connecting a block.

Detailed Description

In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 3, fig. 1 is an overall schematic diagram of a PCB clamping assembly according to an embodiment of the present utility model, fig. 2 is an exploded schematic diagram of the PCB clamping assembly according to an embodiment of the present utility model, and fig. 3 is a cross-sectional schematic diagram of the PCB clamping assembly according to an embodiment of the present utility model;

example 1

The embodiment of the utility model provides a PCB clamping assembly, which is used for PCB circulation, is applied to a scene of putting or taking out a PCB into or out of PCB detection equipment, and improves the clamping stability by optimizing the structure of the PCB clamping assembly.

As shown in fig. 1 to 3, the PCB clamping assembly in this embodiment includes a clamping plate 10, on which a guide unit 20 and a plurality of suction cup units 30 disposed around the guide unit 20 are mounted on the clamping plate 10; the suction cup unit 30 includes a negative pressure interface 31 provided toward the guide unit 20; the guide unit 20 is provided with a guide hole 21 in a straight hole shape corresponding to the negative pressure interface 31, one end of the guide hole 21 away from the negative pressure interface 31 is provided with a flow dividing unit (not shown), and the flow dividing unit can be in a flow dividing row, a flow dividing valve and other structures and is provided with at least one flow collecting port and a plurality of flow dividing ports, so that the gas medium can be divided from the flow collecting port to the flow dividing ports, and the gas medium can be converged from the flow dividing ports to the flow collecting port.

Wherein, the split port of the split unit is communicated with a split air pipe (not shown), the split air pipe is communicated with a corresponding negative pressure interface 31 through the guide hole 21, the current collecting port of the split unit is used for being communicated with a negative pressure device (not shown), and the negative pressure device is used for producing negative pressure and is well known to those skilled in the art, and the embodiment is not specifically described; for example, in this embodiment, four suction cup units 30 are provided, and a split row having four split ports is used, and each split port is connected to the suction cup unit 30 through a split air pipe. Specifically, the PCB clamping assembly is communicated with the current collecting port of the current dividing unit through the negative pressure equipment and the air pipe, and negative pressure is generated at each current dividing port and the current dividing air pipe through the current dividing action of the current dividing unit, so that the sucker unit 30 generates negative pressure; in the above-mentioned process, since the shunt air pipe is limited by the guide hole 21 in a straight line shape, the inlet section of the suction cup unit 30 (that is, the negative pressure interface 31 and the part of the shunt air pipe) is ensured to be in a straight line shape, the air flow at the inlet is ensured not to be reversely folded or spread, and the stability of the negative pressure is ensured, so as to improve the clamping stability of the PCB.

Further, the clamping plate 10 is further provided with a flange seat 40, and the flange seat 40 is used for connecting a movable shaft (not shown) movable in space. It can be understood that the movable shaft may be a terminal structure of a manipulator, and the three-axis mechanical arm, the five-axis mechanical arm, the six-axis mechanical arm and the like of the manipulator, and the terminal is provided with the movable shaft, and the movable shaft is fixedly connected with the flange seat 40, so as to drive the PCB clamping assembly to move in space, thereby realizing the function of placing the PCB into the PCB detection device.

Specifically, as shown in fig. 2 and 3, the flange seat 40 includes an annular shaft connection portion 41, the shaft connection portion 41 is used for being connected with a movable shaft, a connection block 42 is formed on the outer side of the shaft connection portion 41, and the clamping plate 10 is provided with a avoidance hole 12; the connection block 42 may be mounted on the hole edge of the avoidance hole 12 by a machine screw (also called a set screw) connection or the like, and the shaft connection portion 41 passes through the avoidance hole 12.

Further, as shown in fig. 2 and 3, the connection block 42, the guide unit 20 and the negative pressure port 31 are located on the same side of the chucking plate 10; wherein the connection block 42 is abutted against the clamping plate 10 by the guide unit 20. It will be appreciated that by providing the guide unit 20, stability between the flange seat 40 and the clamping plate 10 can be improved.

Further, a first avoiding groove 22 is formed in the position, corresponding to the connecting block 42, of the guiding unit 20, and a second avoiding groove 23 is formed in the position, corresponding to the shunting unit, of the guiding unit 20; wherein, the first avoiding groove 22 and the second avoiding groove 23 are separated by a baffle block 24 protruding inwards; through above-mentioned setting for this PCB clamping component's structure is compacter.

On the basis of the embodiment, the sucker unit 30 comprises a movable threaded rod 32, a movable nut 33 is connected to the movable threaded rod 32 in a threaded manner, and a movable groove 11 is formed in the clamping plate 10 at a position corresponding to the sucker unit 30; the movable groove 11 is positioned between the negative pressure interface 31 and the movable nut 33, the movable threaded rod 32 passes through the movable groove 11, and the movable nut 33 is used for abutting against the edge of the notch of the movable groove 11 so as to fix the position and the rotation angle of the sucker unit 30 relative to the movable groove 11; the extending direction of the movable groove 11 is the length direction of the clamping plate 10. It can be appreciated that when the movable nut 33 is unscrewed, the movable threaded rod 32 can rotate, so that the negative pressure interface 31 is opposite to the guide hole 21 to ensure the straightness of the split air pipe, and the position of the movable threaded rod 32 along the length direction can be adjusted to match with the PCB boards of different sizes, so that the flexible PCB board has the advantage of high flexibility.

Example two

The PCB detection device in the embodiment comprises a detection device, a manipulator and the PCB clamping assembly in the first embodiment. The type of the detection device is not limited, and can be a circuit detection device, a visual detection device and the like, and the PCB clamping assembly is arranged at the tail end of the manipulator so as to realize the circulation of the PCB. In the first embodiment, the specific structure and technical effects of the PCB clamping assembly are described, and the PCB detecting apparatus in this embodiment also has the technical effects thereof, so the PCB detecting apparatus has the advantage of high detecting stability.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A PCB clamping assembly, characterized by comprising a clamping plate (10), wherein a guiding unit (20) and a plurality of sucking disc units (30) arranged around the guiding unit (20) are mounted on the clamping plate (10);

The sucker unit (30) comprises a negative pressure interface (31) arranged towards the guide unit (20); a guide hole (21) in a straight hole shape is formed in the position, corresponding to the negative pressure interface (31), of the guide unit (20), and a shunt unit is arranged at one end, far away from the negative pressure interface (31), of the guide hole (21);

The shunt opening of the shunt unit is communicated with a shunt air pipe, the shunt air pipe passes through the guide hole (21) and is communicated with the corresponding negative pressure interface (31), and the current collecting opening of the shunt unit is used for being communicated with negative pressure equipment.

2. A PCB clamping assembly according to claim 1, characterized in that the clamping plate (10) is further provided with a flange seat (40), the flange seat (40) being adapted to be connected to a movable shaft movable in space.

3. A PCB clamping assembly according to claim 2, wherein the flange seat (40) comprises an annular shaft connecting portion (41), a connecting block (42) is formed on the outer side of the shaft connecting portion (41), and the clamping plate (10) is provided with a avoiding hole (12);

The connecting block (42) is arranged on the hole edge of the avoidance hole (12), and the shaft connecting part (41) penetrates through the avoidance hole (12).

4. A PCB clamping assembly according to claim 3, characterized in that the connection block (42), the guiding unit (20) and the negative pressure interface (31) are located on the same side of the clamping plate (10);

Wherein the connecting block (42) is abutted against the clamping plate (10) by the guide unit (20).

5. The PCB clamping assembly of claim 4, wherein a first avoidance groove (22) is formed in a position of the guide unit (20) corresponding to the connection block (42), and a second avoidance groove (23) is formed in a position of the guide unit (20) corresponding to the shunt unit; wherein the first avoidance groove (22) and the second avoidance groove (23) are separated by a stop block (24) protruding inwards.

6. The PCB clamping assembly according to claim 1, wherein the suction cup unit (30) comprises a movable threaded rod (32), a movable nut (33) is connected to the movable threaded rod (32) in a threaded manner, and a movable groove (11) is formed in the clamping plate (10) at a position corresponding to the suction cup unit (30);

The movable groove (11) is located between the negative pressure interface (31) and the movable nut (33), the movable threaded rod (32) penetrates through the movable groove (11), and the movable nut (33) is used for abutting against the edge of a notch of the movable groove (11) so as to fix the position and the rotation angle of the sucker unit (30) relative to the movable groove (11).

7. A PCB clamping assembly according to claim 6, characterized in that the extension direction of the movable slot (11) is the length direction of the clamping plate (10).

8. A PCB inspection apparatus comprising a PCB clamping assembly as claimed in any one of claims 1 to 7.