CN224185327U - Automatic feeding device and automatic feeding system for PCB boards - Google Patents

Abstract

The utility model relates to the field of automatic equipment, and discloses an automatic feeding device and an automatic feeding system for a PCB. The automatic feeding device comprises a fixed support, a first movable frame, a second movable frame, a first clamp and a second clamp, wherein the first movable frame is slidably arranged on the fixed support along a first direction, the second movable frame is slidably arranged on the first movable frame along a second direction, the first clamp and the second clamp are arranged on the second movable frame at intervals along the first direction, the first direction is perpendicular to the second direction, and the first clamp and the second clamp are used for clamping two ends of a PCB, so that the PCB is parallel to a plane formed by the first direction and the second direction. In the utility model, the first clamp and the second clamp only clamp the edge of the PCB (for example, the edge is 5 mm) when clamping the PCB, do not directly contact the surface circuit area, avoid pollution, tiny deformation or other physical damage caused by adsorption or clamping, ensure the high quality of the PCB, reduce the waiting time in a feeding mode, realize full-automatic operation and avoid manual intervention.

Description

Automatic feeding device and automatic feeding system of PCB

Technical Field

The utility model relates to the technical field of automatic equipment, in particular to an automatic feeding device and an automatic feeding system of a PCB.

Background

In the related art, in the existing automatic feeding process of the PCB, a manipulator is generally used for matching with a vacuum chuck or a clamp to finish the transfer of the PCB from a conveying belt to a hanging conveyor. For example, a robot sucks the PCB through a vacuum chuck and places it on a hanging conveyor, or in some cases, directly clamps the left and right or upper and lower ends of the PCB using conventional mechanical jigs.

However, the conventional feeding method generally has the disadvantage that, firstly, the vacuum chuck directly contacts the surface of the PCB, which may cause pollution or micro deformation of the adsorption points of the PCB, and affect the quality of the PCB and the effect of subsequent processes. Second, the manipulator can only handle a PCB board at every turn, after placing a PCB board to hang the conveyer, need wait that this PCB board is carried away and just can carry out the operation of next PCB board, lead to whole production efficiency lower. Thirdly, in the clamping process, the pressure applied by the mechanical arm or the clamp is uneven or overlarge, so that the PCB is easy to bend, deform and even damage. Fourth, a certain degree of manual participation is required, such as adjusting the position of a robot or checking the state of a PCB board, which not only increases labor costs, but also introduces a risk of human error.

Disclosure of utility model

In view of the above, the utility model provides an automatic feeding device and an automatic feeding system for a PCB, so as to solve the problems of low PCB feeding efficiency and poor quality in the related art.

In a first aspect, the present utility model provides an automatic feeding device for a PCB board, including:

A fixed bracket;

a first moving frame slidably mounted on the fixed bracket in a first direction;

A second moving frame slidably mounted on the first moving frame in a second direction;

A first clamp and a second clamp mounted on the second moving frame and arranged at intervals along a first direction;

The first direction is perpendicular to the second direction, and the first clamp and the second clamp are respectively used for clamping two ends of the PCB, so that the PCB is parallel to a plane formed by the first direction and the second direction.

The PCB clamping device has the beneficial effects that (1) the non-contact clamping is carried out, the quality of the PCB is kept, the first clamp and the second clamp only clamp the edge (for example, the edge is 5 mm) of the PCB when clamping the PCB, the surface circuit area of the PCB is not directly contacted, the pollution, the tiny deformation or other physical damage caused by adsorption or clamping is avoided, and the high quality of the PCB is ensured.

(2) The production efficiency is improved, and the waiting time is reduced by a mode of firstly keeping the PCB away from the conveying belt and then feeding. The manipulator can prepare the next piece when hanging the conveyer and handling current PCB board, has improved production efficiency by a wide margin. And the feeding process is fully automatically operated without manual intervention, so that the labor cost is reduced and the possibility of human errors is reduced.

(3) The design of the first clamp and the second clamp ensures that the PCB is always parallel to a plane formed by the first direction and the second direction in the whole carrying process, so that the problem caused by inclination or improper clamping is avoided, and the stability and safety of clamping are enhanced.

In an alternative embodiment, at least one of the first clamp and the second clamp is a butt clamp mechanism, the butt clamp mechanism includes a first clamp and a second clamp, the first clamp and the second clamp are oppositely arranged in a third direction and form a clamping gap therebetween, and at least one of the first clamp and the second clamp is telescopically arranged along the third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

The butt clamp mechanism has the beneficial effects that the design of the butt clamp mechanism allows the first clamping piece and the second clamping piece to be oppositely arranged in the third direction (front-back direction), and the two clamping pieces work in a telescopic mode along the third direction. Therefore, in the first direction (left-right direction), both sides of the sandwiching mechanism may be free of any obstacle, so that the gap between two adjacent PCB boards may be controlled to be very small.

In an alternative embodiment, the second moving frame comprises a first sliding arm and a second sliding arm which are arranged at intervals along the third direction, the first sliding arm and the second sliding arm are fixedly connected through a connecting piece, the first clamping piece is telescopically arranged on the first sliding arm, and the second clamping piece is telescopically arranged on the second sliding arm;

Wherein an end of the second movable frame adjacent to the butt clamp mechanism is designed to be in an open structure so as to facilitate operation or material passing in a first direction.

The open structure design has the beneficial effects that the operation flow is simplified, particularly when the open structure design moves along the first direction (left-right direction), the PCB is convenient to enter and exit, the potential interference problem is reduced, and the operation smoothness and efficiency are improved. At the same time, the open structure also provides the benefit of easy access to the internal components for maintenance and overhaul, reducing the cost and complexity of routine maintenance. The first sliding arm and the second sliding arm which are fixedly connected strengthen the structural stability of the whole second movable frame, so that unnecessary shaking or deviation cannot occur in the clamping and carrying processes, and the safety of the PCB is further guaranteed.

In an alternative embodiment, the first clamp is a robotic clamp mechanism and the second clamp is a counter clamp mechanism;

The first sliding arm is provided with a first clamping device, a second clamping device and a second clamping device, wherein in the first direction, the second moving frame is provided with a first end and a second end, the first end of the first sliding arm is provided with the first clamp, the second end of the first sliding arm is provided with a first pair of clamping driving parts, and the driving parts of the first pair of clamping driving parts are connected with the first clamping parts and can stretch and retract along the third direction;

the first end of the first sliding arm and the first end of the second sliding arm are fixedly connected through the connecting piece, and the second end of the second moving frame is designed to be of an open structure so as to facilitate operation or material passing along a first direction.

The PCB clamping device has the beneficial effects that the design of the first clamp and the second clamp not only ensures the stability and the safety of the PCB in the carrying process, but also avoids any damage to the PCB by accurately controlling the clamping force. In addition, the design allows the system to flexibly adapt to PCB boards with different thicknesses and sizes, and the application range and the operation efficiency of the equipment are increased. The design of the open structure simplifies the material passing path, and further improves the flexibility and the operation smoothness of the whole system.

In an alternative embodiment, the first moving frame includes a third sliding arm and a fourth sliding arm arranged at intervals along the third direction, and the third sliding arm and the fourth sliding arm are slidably connected with the fixed bracket respectively;

one of the first sliding arm and the third sliding arm is provided with a first sliding rail extending along the second direction, and the other is provided with a first sliding piece in sliding fit with the first sliding rail;

one of the second sliding arm and the fourth sliding arm is provided with a second sliding rail extending along the second direction, and the other is provided with a second sliding piece in sliding fit with the second sliding rail.

The automatic feeding device has the beneficial effects that the flexibility and the adaptability of the whole automatic feeding device are enhanced through the structural design, and the operation efficiency and the accuracy are improved through accurate multidimensional movement control. For example, when processing the PCB boards with different widths or lengths, the first movable frame can quickly adjust the position according to the needs, so that the PCB boards can be accurately sent to the designated positions each time. In addition, the design of the sliding rail and the sliding piece enables movement among all moving parts to be smoother, reduces mechanical abrasion, reduces maintenance cost and ensures long-time operation reliability.

In an alternative embodiment, the fixing bracket comprises a first fixing arm and a second fixing arm, wherein the first fixing arm and the second fixing arm are arranged at intervals along the third direction;

Wherein one of the first fixed arm and the third sliding arm is provided with a third sliding rail extending along the first direction, and the other is provided with a third sliding piece in sliding fit with the third sliding rail;

one of the second fixed arm and the fourth sliding arm is provided with a fourth sliding rail extending along the first direction, and the other is provided with a fourth sliding piece in sliding fit with the fourth sliding rail.

The PCB moving rack has the beneficial effects that through the sliding rail and the sliding piece system, the first moving rack can realize accurate and stable horizontal movement between the first fixed arm and the second fixed arm, and the position accuracy of the PCB in the whole carrying process is ensured.

In an alternative embodiment, the fixing bracket further includes a third fixing arm, and the first fixing arm and the third fixing arm are spaced apart along the second direction;

A first electric guide rail is arranged on the third fixed arm, a first linear driving piece is fixed on a first electric sliding block of the first electric guide rail and can slide along the first direction, and the first linear driving piece is fixedly connected with the third sliding arm, and the linear driving part of the first linear driving piece is in transmission connection with the first sliding arm and is telescopic along the second direction.

The beneficial effects are that: the first electric guide rail drives the machine body of the first linear driving piece to slide along the first direction, at the moment, the machine body of the first linear driving piece drives the third sliding arm fixedly connected with the machine body of the first linear driving piece to slide along the first direction, at the moment, the first moving frame also slides along with the sliding of the third sliding arm in the first direction, and in the process, the linear driving part of the first linear driving piece can drive the first moving frame to further slide along the second direction, so that the sliding of the first moving frame in the first direction and the second direction is realized simultaneously.

In an alternative embodiment, at least one of the first clamp and the second clamp is slidably disposed along the first direction.

The PCB clamping device has the beneficial effects that the first clamp can flexibly adjust the position according to actual needs so as to adapt to the PCBs with different sizes and layout requirements, so that the application range and the operation flexibility of the system are increased.

In an alternative embodiment, a second electric guide rail is mounted on the second moving frame, and a second electric slider of the second electric guide rail is fixed with one of the first clamp and the second clamp and can slide along the first direction;

And the second electric guide rail is provided with a displacement sensor for judging the moving position of the first clamp or the second clamp.

The device has the beneficial effects that the configuration is particularly suitable for the efficient processing of the PCB with multiple specifications, and allows the system to quickly adjust the position of the clamp according to different production requirements without major changes to the mechanical structure. For example, the clips may slide outward to increase the clip spacing when processing wider PCBs, and inward to decrease the clip spacing when processing narrower PCBs. In addition, the introduction of the displacement sensor not only improves the accuracy of position control, but also enhances the automation degree of the whole system and reduces the requirement of manual intervention. Through the position of real-time supervision anchor clamps, the system can automatic adjustment clamping force and clamp position, ensures the uniformity and the reliability of every operation.

In a second aspect, the present utility model further provides an automatic feeding system for a PCB board, including:

According to the automatic feeding device for the PCB, disclosed by the embodiment of the first aspect of the utility model;

the manipulator is used for conveying the PCB into the automatic feeding device;

And the suspension conveyor moves along the first direction and is provided with a plurality of feeding clamps, and the feeding clamps are used for clamping the PCB sent out in the automatic feeding device.

The method has the beneficial effects that the efficiency and the precision of the whole production flow are obviously enhanced. Firstly, the cooperative work of the mechanical arm and the automatic feeding device ensures the seamless connection from grabbing to fixing of the PCB, and secondly, the design of the hanging conveyor allows the system to process continuous flow type production, so that the overall productivity is improved. In addition, through introducing second electronic guide rail and displacement sensor, the system can be nimble the PCB board of coping with different specifications, has increased the range of application of equipment. Finally, the modularized design simplifies maintenance and overhaul processes, reduces the cost and complexity of daily maintenance, and ensures long-term reliable operation of the system.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an automatic feeding apparatus according to an embodiment of the present utility model;

FIG. 2 is a second perspective view of an automatic feeding apparatus according to an embodiment of the present utility model;

FIG. 3 is a top view of an automatic loading device according to an embodiment of the present utility model;

fig. 4 is a front view of an automatic feeding device according to an embodiment of the present utility model;

FIG. 5 is a side view of an automatic loading device according to an embodiment of the present utility model;

Fig. 6 is a schematic perspective view of a partial structure formed by a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of the automatic feeding device according to an embodiment of the present utility model;

fig. 7 is a front view of a partial structure formed by a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of the automatic feeding device according to an embodiment of the present utility model;

FIG. 8 is a second front view of a partial structure formed by a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of the automatic feeding device according to the embodiment of the present utility model;

fig. 9 is an exploded schematic view of a partial structure formed by a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of the automatic feeding device according to an embodiment of the present utility model;

Fig. 10 is a schematic perspective view of a partial structure formed by a first fixed arm, a second fixed arm, a first sliding arm, a second sliding arm, a third sliding arm and a fourth sliding arm of the automatic feeding device according to an embodiment of the present utility model;

Fig. 11 is an exploded schematic view of a partial structure formed by a first fixed arm, a second fixed arm, a first sliding arm, a second sliding arm, a third sliding arm and a fourth sliding arm of the automatic feeding device according to an embodiment of the present utility model.

Reference numerals illustrate:

1. Fixed brackets, 11, first fixed arms, 12, second fixed arms, 13, third fixed arms, 2, first moving frames, 21, third sliding arms, 22, fourth sliding arms, 3, second moving frames, 31, first sliding arms, 32, second sliding arms, 33, connecting pieces, 41, first clamps, 42, second clamps, 421, first clamping pieces, 422, second clamping pieces, 423, first pair of clamping driving pieces, 424, second pair of clamping driving pieces, 51, first sliding rails, 52, first sliding pieces, 53, second sliding rails, 54, second sliding pieces, 55, third sliding rails, 56, third sliding pieces, 57, fourth sliding rails, 58, fourth sliding pieces, 6, first electric sliding rails, 61, first electric sliding blocks, 62, first linear driving pieces, 621, linear driving portions, 7, second electric sliding rails, 71, second electric sliding blocks, 8, displacement sensors, 9 and second linear driving pieces.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are 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 embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The utility model provides an automatic feeding device and an automatic feeding system for a PCB, and the automatic feeding device can be used for transferring the PCB from a manipulator to a hanging conveyor.

As shown in fig. 1 to 11, the automatic feeding device for a PCB board according to the embodiment of the first aspect of the present utility model includes a fixed bracket 1, a first moving bracket 2, a second moving bracket 3, a first jig 41 and a second jig 42.

The first moving frame 2 is slidably mounted on the fixed frame 1 in a first direction, the second moving frame 3 is slidably mounted on the first moving frame 2 in a second direction, and the first and second jigs 41 and 42 are mounted on the second moving frame 3 and are arranged at intervals in the first direction.

Wherein the first direction is perpendicular to the second direction, and the first clamp 41 and the second clamp 42 are used for clamping two ends of the PCB board, respectively, so that the PCB board is parallel to a plane formed by the first direction and the second direction.

As shown in fig. 1 to 11, an explanation of a specific structure of the automatic feeding device for PCBs according to the present utility model is given below:

The fixed bracket 1 is a basic supporting structure of the whole device, and the fixed bracket 1 ensures the stability and the accuracy of all other components. It will be appreciated that the fixed bracket 1 provides a mounting point on which the first mobile frame 2 can slide.

The first moving frame 2 is slidably mounted on the fixed frame 1 in a first direction (e.g., a lateral direction, i.e., a left-right direction). The first mobile frame 2 allows the overall device to be positionally adjusted in one dimension to accommodate PCB boards in different positions and to move them from the conveyor belt to the position of the hanging conveyor. The first moving frame 2 can smoothly move horizontally along the track on the fixed bracket 1 by an electric sliding table or other driving mechanism.

The second moving frame 3 is slidably mounted on the first moving frame 2 in a second direction (e.g., a vertical direction, i.e., an up-down direction). The second movable frame 3 is responsible for positioning adjustment in the vertical direction, and can move up and down in the plane provided by the first movable frame 2 so as to lift the PCB to a proper height, so that the PCB can be grasped by the hanging conveyor clamping jaws. A driving member such as a jacking cylinder is used to push the second moving frame 3 up or down along its track.

The first clamp 41 and the second clamp 42 are specially designed to securely clamp both ends of the PCB board, ensuring that the PCB board remains parallel to the plane formed by the first direction and the second direction throughout the handling process. Thus, the correct posture of the PCB in the transferring process can be ensured, and deformation or damage can be avoided. Wherein each clamp is equipped with a respective driving mechanism, such as a pneumatic system, for effecting the clamping and releasing actions.

Further, based on the above structure, the specific workflow of the automatic feeding device of the present utility model is as follows:

When the device is in the ready state, the first mobile carriage 2 is in the starting position and the second mobile carriage 3 is at the lowest point, ready to receive a new PCB board from the conveyor. The robot arm takes out the PCB from the conveyor belt and rotates it to a vertical state, and then places one end thereof at the first jig 41 and the other end thereof at the second jig 42.

The first jig 41 and the second jig 42 work cooperatively to firmly clamp both ends of the PCB board. The first moving frame 2 is moved away from the conveyor along a lateral movement track by driving means (e.g. an electric rail) to make room for the next PCB board. A drive (e.g. a jacking cylinder) drives the second mobile frame 3 up, lifting the PCB to a height where the jaws of the hanging conveyor can reach. Once the specified position is reached, the clamping jaw of the hanging conveyor clamps the PCB, and simultaneously the first clamp 41 and the second clamp 42 of the automatic feeding device loosen the PCB, completing a complete feeding process. After that, the second moving frame 3 descends back to the original position, and the first moving frame 2 also returns to the original position, waiting for the next PCB board to be processed.

In the related art, in the existing automatic feeding process of the PCB, a manipulator is generally used for matching with a vacuum chuck or a clamp to finish the transfer of the PCB from a conveying belt to a hanging conveyor. For example, a robot sucks the PCB through a vacuum chuck and places it on a hanging conveyor, or in some cases, directly clamps the left and right or upper and lower ends of the PCB using conventional mechanical jigs.

However, the conventional feeding method generally has the disadvantage that, firstly, the vacuum chuck directly contacts the surface of the PCB, which may cause pollution or micro deformation of the adsorption points of the PCB, and affect the quality of the PCB and the effect of subsequent processes. Second, the manipulator can only handle a PCB board at every turn, after placing a PCB board to hang the conveyer, need wait that this PCB board is carried away and just can carry out the operation of next PCB board, lead to whole production efficiency lower. Thirdly, in the clamping process, the pressure applied by the mechanical arm or the clamp is uneven or overlarge, so that the PCB is easy to bend, deform and even damage. Fourth, a certain degree of manual participation is required, such as adjusting the position of a robot or checking the state of a PCB board, which not only increases labor costs, but also introduces a risk of human error.

Therefore, in order to solve the technical defects in the related art, the utility model provides an automatic feeding device of a PCB, which can automatically transfer the PCB from a manipulator to a hanging conveyor, thereby realizing an automatic, safe and high-quality feeding process of the PCB, and compared with the related art, the automatic feeding device has at least the following advantages:

(1) The non-contact clamping keeps the quality of the PCB, namely, the first clamp 41 and the second clamp 42 only clamp the edge (for example, the edge 5 mm) of the PCB when clamping the PCB, and do not directly contact the surface circuit area of the PCB, so that pollution, tiny deformation or other physical damage caused by adsorption or clamping are avoided, and the high quality of the PCB is ensured.

(2) The production efficiency is improved, and the waiting time is reduced by a mode of firstly keeping the PCB away from the conveying belt and then feeding. The manipulator can prepare the next piece when hanging the conveyer and handling current PCB board, has improved production efficiency by a wide margin. And the feeding process is fully automatically operated without manual intervention, so that the labor cost is reduced and the possibility of human errors is reduced.

(3) The design of the first clamp 41 and the second clamp 42 ensures that the PCB is always parallel to a plane formed by the first direction and the second direction in the whole carrying process, so that the problem caused by inclination or improper clamping is avoided, and the stability and the safety of clamping are enhanced.

For convenience of description, the following description will take a case where the first direction is a left-right direction, the second direction is an up-down direction, and the third direction is a front-back direction, without losing generality.

As shown in fig. 3, 10 and 11, according to some embodiments of the present utility model, at least one of the first clamp 41 and the second clamp 42 is a butt clamp mechanism including a first clamp 421 and a second clamp 422, the first clamp 421 and the second clamp 422 being disposed opposite to each other with a clamp gap formed therebetween in a third direction, at least one of the first clamp 421 and the second clamp 422 being disposed telescopically in the third direction, wherein the third direction is perpendicular to a plane constituted by the first direction and the second direction.

In this embodiment, the first and second clamping members 421 and 422 are disposed opposite each other in a third direction (e.g., front-to-rear direction), i.e., they are disposed face-to-face to form a clamping gap for clamping the PCB, which is a space specially designed to accommodate the PCB, and move inward to narrow the gap when clamping is required, thereby tightly gripping the PCB, and move outward to enlarge the gap when releasing is required, allowing the PCB to be removed or picked up by other components.

At least one of the first clamping member 421 and the second clamping member 422 is capable of linear movement in a third direction (perpendicular to the plane formed by the first and second directions). The telescopic design enables the butt clamp mechanism to adapt to PCB boards with different thicknesses, and can provide proper force in the clamping process, so that firmness is ensured and the PCB boards are not damaged.

It should be noted that the most important function of the butt-clamp mechanism is to reduce the gap between two adjacent PCB boards. For a common manipulator clamp, a driving cylinder exists in the left-right direction, so that a gap between two adjacent PCBs needs to be larger than a gap of a driving cylinder body, and the opposite clamping mechanism in the embodiment can be free of any obstacle at the left side and the right side, so that the gap between two adjacent PCBs can be controlled to be extremely small.

In particular, in the related art, a general robot jig generally includes driving cylinders and the like, which occupy additional space, particularly in the left-right direction, which forces that a large gap must be maintained between two adjacent PCB boards to avoid collision or interference. In contrast, the design of the butt clamp mechanism of the present utility model allows the first clamp 421 and the second clamp 422 to be disposed opposite to each other in the third direction (front-rear direction), and the two clamps are operated to be telescopic in the third direction. Therefore, in the first direction (left-right direction), both sides of the sandwiching mechanism may be free of any obstacle, so that the gap between two adjacent PCB boards may be controlled to be very small.

Thus, on one hand, under the condition of compact layout of the production line, reducing the gap between the PCB boards means that more PCB boards can be processed in the same physical space, and the space utilization rate of the equipment is improved. On the other hand, the more closely arranged PCB reduces the idle moving distance of the conveyer belt and other conveying equipment, and is beneficial to accelerating the speed of the whole production flow. In addition, for the PCB board of different sizes and interval requirement, the butt clamp mechanism can be adjusted according to specific needs in a flexible way, ensures best operating condition.

As shown in fig. 3, 10 and 11, according to some embodiments of the present utility model, the second moving frame 3 includes first and second sliding arms 31 and 32 arranged at intervals in a third direction, the first and second sliding arms 31 and 32 are fixedly connected by a connection member 33, a first clamping member 421 is telescopically mounted on the first sliding arm 31, and a second clamping member 422 is telescopically mounted on the second sliding arm 32. Wherein the end of the second movable frame 3 adjacent to the clamping mechanism is designed as an open structure for facilitating the handling or passage of material in the first direction.

In the present embodiment, the second moving frame 3 is constituted by two parallel-disposed slide arms (a first slide arm 31 and a second slide arm 32) which are arranged at intervals in the third direction (front-rear direction). The second moving frame 3 serves as a main supporting structure for vertical movement, and can ensure accurate movement of the PCB board in a vertical direction.

The first sliding arm 31 is responsible for carrying and guiding the telescopic action of the first clamping member 421. The second sliding arm 32 is responsible for carrying and guiding the telescopic action of the second clamping member 422. In addition, the two sliding arms are fixed together through high-strength bolts or welding and the like, so that the stability and rigidity of the whole structure are ensured.

The first clamping member 421 is attached to the first slide arm 31 and is driven by a cylinder to extend and retract back and forth. The second clamp 422 is also mounted on the second slide arm 32 and is also driven by a cylinder to extend and retract back and forth. Like this, these two clamping blocks can adjust the position accurately to adapt to the PCB board of different thickness, and can provide even pressure when the centre gripping, avoid causing the damage to the PCB board.

It should be noted that, the second movable frame 3 is not closed at one end, but is designed into an open frame structure, which allows the PCB to go in and out smoothly, reducing interference during operation. Therefore, the PCB is conveniently conveyed into the device by the manipulator or the conveyer belt, and meanwhile, the clamping jaw of the hanging conveyer is also conveniently used for grabbing the PCB, so that the operation efficiency of the whole system is improved.

In summary, in the embodiment, the open structure design simplifies the operation flow, and particularly facilitates the ingress and egress of the PCB when moving along the first direction (left-right direction), reduces the potential interference problem, and improves the smoothness and efficiency of operation. At the same time, the open structure also provides the benefit of easy access to the internal components for maintenance and overhaul, reducing the cost and complexity of routine maintenance.

The first sliding arm 31 and the second sliding arm 32 which are fixedly connected strengthen the structural stability of the whole second movable frame 3, ensure that unnecessary shaking or deviation cannot occur in the clamping and carrying processes, and further ensure the safety of the PCB. In addition, through compact and efficient design, this embodiment can realize more functions in limited space, has not only improved the space utilization of equipment, also makes whole overall arrangement compacter reasonable.

As shown in fig. 3, 10 and 11, in some embodiments of the present utility model, the first gripper 41 is a robotic gripper mechanism and the second gripper 42 is a counter gripper mechanism.

The second moving frame 3 has a first end and a second end in a first direction, the first end of the first sliding arm 31 is provided with a first clamp 41, the second end of the first sliding arm 31 is provided with a first pair of clamp driving members 423, a driving part of the first pair of clamp driving members 423 is connected with the first clamp 421 and can stretch in a third direction, and the second end of the second sliding arm 32 is provided with a second pair of clamp driving members 424, and a driving part of the second pair of clamp driving members 424 is connected with the second clamp 422 and can stretch in the third direction. Like this, ensured that two clamp blocks can be in the independent adjustment position of third direction, accurate adaptation different thickness's PCB board guarantees clamping force evenly distributed simultaneously, avoids causing the damage to the PCB board.

The first sliding arms 31 and the second sliding arms 32 are arranged at intervals along the third direction and are fixedly connected through the connecting pieces 33, so that rigidity and stability of the whole structure are enhanced. It is particularly important to note that the second end of the second mobile frame 3 is designed as an open structure, which not only reduces potential interference problems, but also increases the flexibility and operating efficiency of the system, especially when dealing with continuous streamline production. This open design simplifies the material path and facilitates operation in a first direction (left-right direction) thereby improving overall working fluency.

Specifically, the specific working procedures of the first clamp 41 and the second clamp 42 are as follows:

The manipulator first grabs the PCB from the conveyor belt and rotates it to a vertical state. Then, the robot places one end of the PCB board at the first jig 41 mounted at the first end of the first slider arm 31. The first clamp 41 firmly fixes one end of the PCB board by the manipulator clamp mechanism, ensuring that it remains stable throughout the handling process. At the same time, the first pair of clamp driving members 423 (at the second end of the first sliding arm 31) is activated, pushing the first clamping member 421 to move forward in the third direction (front-rear direction). Similarly, the second pair of clamp drivers 424 (located at the second end of the second slider arm 32) are also activated, pushing the second clamp 422 forward in the same direction. The two clamping blocks cooperate to gradually reduce the clamping gap, and finally firmly clamp the other end of the PCB.

After the preliminary fixing is completed, the electric sliding table drives the first moving frame 2 to be far away from the conveying belt along the transverse direction, so that a space is reserved for the next PCB. Subsequently, the lifting cylinder drives the second moving frame 3 to rise, lifting the PCB to a height that the hanging conveyor jaws can reach. When the clamping jaw of the hanging conveyor reaches the designated position, the clamping jaw clamps the PCB, and at the moment, the first clamp 41 and the opposite clamp mechanism of the automatic feeding device loosen the PCB to complete a complete feeding process. And finally, resetting each component and preparing for processing the next PCB.

In this process, the design of the first clamp 41 and the second clamp 42 not only ensures the stability and safety of the PCB during the handling process, but also avoids any damage to the PCB by precisely controlling the clamping force. In addition, the design allows the system to flexibly adapt to PCB boards with different thicknesses and sizes, and the application range and the operation efficiency of the equipment are increased. The design of the open structure simplifies the material passing path, and further improves the flexibility and the operation smoothness of the whole system.

As shown in fig. 3, 10 and 11, in some implementations of the present utility model, the first moving frame 2 includes third and fourth sliding arms 21 and 22 arranged at intervals in a third direction, and the third and fourth sliding arms 21 and 22 are slidably connected to the fixed frame 1, respectively. This design ensures that the first moving frame 2 can smoothly move back and forth in the horizontal direction (first direction), thereby precisely adjusting the lateral position of the PCB board.

One of the first slide arm 31 and the third slide arm 21 is provided with a first slide rail 51 extending in the second direction and the other is provided with a first slide member 52 in sliding engagement with the first slide rail 51, and one of the second slide arm 32 and the fourth slide arm 22 is provided with a second slide rail 53 extending in the second direction and the other is provided with a second slide member 54 in sliding engagement with the second slide rail 53.

In the present embodiment, in order to achieve stable movement in the vertical direction (second direction), a slide rail and slider system is provided between the first slide arm 31 and the third slide arm 21 and between the second slide arm 32 and the fourth slide arm 22. For example, the third slide arm 21 is provided with a first slide rail 51 extending in the up-down direction, the first slide arm 31 is provided with a first pulley (i.e., a first slider 52) slidably engaged with the first slide rail 51, the fourth slide arm 22 is provided with a second slide rail 53 extending in the up-down direction, and the second slide arm 32 is provided with a second pulley (i.e., a second slider 54) slidably engaged therewith. Such a rail and slider arrangement ensures high accuracy and stability in vertical movement while reducing friction and extending the service life of the system.

In conclusion, the flexibility and the adaptability of the whole automatic feeding device are enhanced through the structural design, and the operation efficiency and the accuracy are improved through accurate multidimensional movement control. For example, when processing PCBs of different widths or lengths, the first movable frame 2 can quickly adjust its position as required, so as to ensure that the PCBs can be accurately sent to the designated positions each time. In addition, the design of the sliding rail and the sliding piece enables movement among all moving parts to be smoother, reduces mechanical abrasion, reduces maintenance cost and ensures long-time operation reliability.

As shown in fig. 3, 10 and 11, further, the fixing bracket 1 includes a first fixing arm 11 and a second fixing arm 12, and the first fixing arm 11 and the second fixing arm 12 are arranged at intervals in a third direction.

Wherein one of the first fixing arm 11 and the third sliding arm 21 is provided with a third sliding rail 55 extending in the first direction and the other is provided with a third sliding member 56 in sliding engagement with the third sliding rail 55, and one of the second fixing arm 12 and the fourth sliding arm 22 is provided with a fourth sliding rail 57 extending in the first direction and the other is provided with a fourth sliding member 58 in sliding engagement with the fourth sliding rail 57.

In the embodiment of the present utility model, the fixed bracket 1 includes the first fixed arm 11 and the second fixed arm 12 arranged at intervals in the third direction (front-rear direction), which not only enhances the stability of the entire system but also provides an accurate sliding path for the first moving frame 2. Specifically, the first fixing arm 11 is provided with a third slide rail 55 extending in the left-right direction, the third slide arm 21 is provided with a third pulley (i.e., a third slider 56) slidably engaged with the third slide rail 55, and similarly, the second fixing arm 12 is provided with a fourth slide rail 57 extending in the left-right direction, and the fourth slide arm 22 is provided with a fourth pulley (i.e., a fourth slider 58) slidably engaged therewith. Through such a rail and slider system, the first moving frame 2 can realize accurate and stable horizontal movement between the first fixed arm 11 and the second fixed arm 12, ensuring the position accuracy of the PCB board in the whole handling process.

As shown in fig. 5 to 9, further, the fixing bracket 1 further includes a third fixing arm 13, and the first fixing arm 11 and the third fixing arm 13 are arranged at intervals in the second direction.

The third fixed arm 13 is provided with a first electric guide rail 6, a first linear driving piece 62 is fixed on a first electric sliding block 61 of the first electric guide rail 6 and can slide along a first direction, the first linear driving piece 62 is fixedly connected with the third sliding arm 21, and a linear driving part 621 of the first linear driving piece 62 is in transmission connection with the first sliding arm 31 and can stretch along a second direction.

It will be appreciated that in the present embodiment, the first electric rail 6 drives the body of the first linear driving member 62 to slide along the first direction, at this time, the body of the first linear driving member 62 drives the third sliding arm 21 fixedly connected thereto to slide along the first direction, at this time, the first moving frame 2 also slides along with the sliding of the third sliding arm 21 in the first direction, and in this process, the linear driving portion 621 of the first linear driving member 62 may drive the first moving frame 2 to slide further along the second direction, so as to realize the sliding of the first moving frame 2 in both the first direction and the second direction. In one implementation, a second linear driving member 9 is further disposed between the second sliding arm 32 and the fourth sliding arm 22, the body of the second linear driving member 9 is fixed on one of the second sliding arm 32 and the fourth sliding arm 22, and the driving portion of the second linear driving member 9 is connected to the other of the second sliding arm 32 and the fourth sliding arm 22, so that the first moving frame 2 can be cooperatively driven by the first linear driving member 62 and the second linear driving member 9 to slide along the second direction, thereby ensuring the sliding stability of the first moving frame 2.

According to some embodiments of the utility model, at least one of the first clamp 41 and the second clamp 42 is slidably arranged along the first direction.

As shown in fig. 10 and 11, in some embodiments, a second power rail 7 is mounted on the second moving frame 3, and one of the first clamp 41 and the second clamp 42 is fixed to the second power slider 71 of the second power rail 7 and is slidable in the first direction. Wherein, the second electric guide rail 7 is provided with a displacement sensor 8 for judging the moving position of the first clamp 41 or the second clamp 42.

It will be appreciated that at least one of the first jig 41 and the second jig 42 is slidably disposed in the first direction (left-right direction) in order to further improve the flexibility and accuracy of the PCB board process. For example, the second electric rail 7 is attached to the first slide arm 31, and the first clamp 41 is fixed to the second electric slider 71 on the rail, and the first clamp 41 is a robot clamp. In this way, the first fixture 41 can flexibly adjust the position according to actual needs so as to adapt to the PCB boards with different sizes and layout requirements, thereby increasing the application range and the operation flexibility of the system.

The above arrangement is particularly suitable for efficient handling of multi-format PCB boards, which allows the system to quickly adjust the position of the fixture according to different production requirements without significant modification of the mechanical structure. For example, the clips may slide outward to increase the clip spacing when processing wider PCBs, and inward to decrease the clip spacing when processing narrower PCBs. This flexibility significantly increases the flexibility of the apparatus, enabling it to provide stable service in a variety of production and process environments.

Further, a displacement sensor 8 for accurately judging the position where the first jig 41 or the second jig 42 moves is also mounted on the second electric rail 7. The introduction of the displacement sensor 8 not only improves the accuracy of position control, but also enhances the automation degree of the whole system and reduces the requirement of manual intervention. Through the position of real-time supervision anchor clamps, the system can automatic adjustment clamping force and clamp position, ensures the uniformity and the reliability of every operation.

At the same time, the application of the displacement sensor 8 simplifies the maintenance and calibration procedures, reducing the cost and complexity of routine maintenance. Because the displacement sensor 8 can feed back the position information of the clamp in real time, any abnormal situation can be timely found and corrected, and the long-term reliable operation of the system is ensured.

According to the second aspect of the utility model, the automatic feeding system of the PCB comprises the automatic feeding device of the PCB, a manipulator and a hanging conveyor.

The automatic PCB feeding device comprises a mechanical arm, a hanging conveyor, a plurality of feeding clamps and a clamping device, wherein the mechanical arm is used for conveying a PCB into the automatic feeding device, the hanging conveyor moves along a first direction and is provided with the plurality of feeding clamps, and the feeding clamps are used for clamping the PCB sent out from the automatic feeding device.

According to the automatic feeding system provided by the embodiment of the utility model, the efficiency and the precision of the whole production flow are obviously enhanced. Firstly, the cooperative work of the mechanical arm and the automatic feeding device ensures the seamless connection from grabbing to fixing of the PCB, and secondly, the design of the hanging conveyor allows the system to process continuous flow type production, so that the overall productivity is improved. In addition, through introducing second electric guide rail 7 and displacement sensor 8, the system can deal with the PCB board of different specifications in a flexible way, has increased the range of application of equipment. Finally, the modularized design simplifies maintenance and overhaul processes, reduces the cost and complexity of daily maintenance, and ensures long-term reliable operation of the system.

A specific embodiment of the automatic feeding system according to the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 to 11, the automatic feeding system includes an automatic feeding device, a robot arm, and a hanging conveyor. The automatic feeding device comprises a fixed bracket 1, a first movable frame 2, a second movable frame 3, a first clamp 41 and a second clamp 42. The robot is responsible for grabbing the PCB from the conveyor and rotating it to a vertical state, and then placing it into the first and second clamps 41 and 42 of the automatic feeding device for preliminary fixing. The suspension conveyor moves along a first direction and is provided with a plurality of feeding clamps, and the feeding clamps are used for clamping the PCB sent out in the automatic feeding device.

The fixing bracket 1 includes first fixing arms 11 and second fixing arms 12 arranged at intervals in a third direction (front-rear direction), and third fixing arms 13 arranged at intervals from the first fixing arms 11 in the second direction (vertical direction). The three-layer structure significantly enhances the rigidity and stability of the system.

The first moving frame 2 is composed of a third slide arm 21 and a fourth slide arm 22 arranged in the third direction. The third slide arm 21 and the fourth slide arm 22 are connected to the first fixed arm 11 and the second fixed arm 12 through the third slide rail 55/third slide 56 and the fourth slide rail 57/fourth slide 58, respectively, ensuring accurate sliding of the first moving frame 2 in the horizontal direction.

The first clamp 41 is a robot clamp, and the second clamp 42 is a butt clamp mechanism. The second moving frame 3 is composed of a first slide arm 31 and a second slide arm 32 arranged in the third direction. A first pair of clamp driving pieces 423 and a second pair of clamp driving pieces 424 are arranged between the two sliding arms and used for controlling the first clamping pieces 421 and the second clamping pieces 422 to stretch along a third direction, so that the PCB is firmly clamped.

The third fixed arm 13 is mounted with a first motorized guide rail 6 to which a first motorized slider 61 is fixed with a first linear drive 62 and is slidable in a first direction. The first linear driving member 62 is fixedly connected with the third sliding arm 21, and is in transmission connection with the first sliding arm 31 through the linear driving portion 621, so that precise control of the first moving frame 2 in the vertical direction is achieved. A second linear driving member 9 is further provided between the second sliding arm 32 and the fourth sliding arm 22, which enhances the sliding stability of the first moving frame 2 in the vertical direction. A second motorized guide rail 7 is mounted on the second movable frame 3, and a second motorized slider 71 on the guide rail is fixed to the first clamp 41 and is slidable in the first direction. The second electric guide rail 7 is provided with a displacement sensor 8 for monitoring the position of the clamp in real time and ensuring the consistency and reliability of each operation.

Further, the specific workflow of the automatic feeding system of the utility model is as follows:

(1) Initial preparation the first, second and third fixing arms 11, 12, 13 of the fixing bracket 1 constitute the basic frame of the whole device, ensuring the stability and rigidity of the system. Each component is in a standby state ready to receive a PCB board.

(2) The robot grabs the PCB by grabbing the PCB from the conveyor and rotating it to a vertical state, and then placing one end of the PCB to the first clamp 41 installed at the first end of the first sliding arm 31 for preliminary fixing. At this time, the first clamp 41 firmly fixes one end of the PCB board, ensuring that it remains stable throughout the handling process.

(3) The opposite clamping mechanism clamps the PCB, the first opposite clamping driving member 423 is positioned at the second end of the first sliding arm 31 to push the first clamping member 421 to move forward in the third direction, and the second opposite clamping driving member 424 is positioned at the second end of the second sliding arm 32 to push the second clamping member 422 to move forward. The two clamping blocks cooperate to finally firmly clamp the other end of the PCB, so that the PCB is ensured to be stable and not damaged in the whole carrying process.

(4) The first electric guide rail 6 drives the first electric sliding block 61 to move transversely along the first direction, so that the body of the first linear driving member 62 drives the third sliding arm 21 fixedly connected with the first linear driving member to slide along the first direction. Therefore, in the first direction, the first moving frame 2 also slides along with the sliding of the third sliding arm 21, so that the PCB is far away from the conveyor belt, and a space is made for the next PCB.

(5) And vertically lifting the PCB board, the linear driving part 621 of the first linear driving member 62 may drive the first sliding arm 31 to extend and retract in the second direction (vertical direction) during the sliding of the first moving frame 2 in the first direction, thereby realizing the sliding of the first moving frame 2 in the second direction. This enables the PCB board to be lifted while being moved horizontally to a height where the hanging conveyor jaw is accessible.

(6) The cooperative driving increases stability, namely, the second linear driving piece 9 between the second sliding arm 32 and the fourth sliding arm 22 cooperates with the first linear driving piece 62 to further enhance the sliding stability of the first moving frame 2 in the second direction and ensure the stability of the PCB board in the lifting process.

(7) Handing over to the hanging conveyor: when the loading clamps of the hanging conveyor reach the designated positions, they clamp the PCB, and at this time, the first clamp 41 and the opposite clamp mechanism of the automatic loading device release the PCB, thus completing a complete loading process. Each component is reset and ready to process the next PCB board.

(8) Real-time position monitoring the position of the first clamp 41 or the second clamp 42 is monitored in real time by the displacement sensor 8 on the second electric guide rail 7, and the consistency and reliability of each operation are ensured. Any abnormal situation can be timely found and corrected, and long-term reliable operation of the system is ensured.

In summary, the automatic feeding system of the utility model has the following advantages:

First, by introducing the third fixed arm 13 and the first motorized guide rail 6 and the first linear drive 62 thereon, the system achieves high precision movement control in multiple dimensions. The combination of the first motorized guide rail 6 and the first linear drive 62 allows for a smoother and more accurate movement of the entire system in both the horizontal and vertical directions, reducing mechanical wear and extending the useful life of the system.

Second, the design of the sliding rail and the sliding piece not only improves the operation efficiency and accuracy, but also allows the system to flexibly cope with the PCB boards with different widths, lengths and thicknesses, and the application range of the equipment is increased.

Third, the multi-layered structure of the first, second and third fixing arms 11, 12 and 13 significantly enhances the rigidity and stability of the entire system, ensuring high performance even in complex operating environments. The cooperation of the first linear driving member 62 and the second linear driving member 9 further enhances the sliding stability of the first moving frame 2 in the vertical direction. The modularized sliding rail sliding part system, the electric guide rail and the linear driving part system simplify maintenance and overhaul processes, and reduce the cost and complexity of daily maintenance.

In conclusion, the PCB automatic feeding system provided by the utility model provides a high-efficiency, stable and flexible PCB processing solution through the integrated manipulator, the automatic feeding device and the suspension conveyor, and the efficiency and the reliability of automatic production are obviously improved. The design not only improves the operation efficiency and accuracy, but also increases the application range and adaptability of the equipment, and provides a more reliable and intelligent solution for PCB processing in an automatic production environment.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims (10)

1. Automatic loading attachment of PCB board, its characterized in that includes:

A fixed bracket (1);

A first movable frame (2) slidably mounted on the fixed frame (1) in a first direction;

A second movable frame (3) slidably mounted on the first movable frame (2) in a second direction;

A first jig (41) and a second jig (42) mounted on the second moving frame (3) and arranged at intervals in a first direction;

Wherein the first direction is perpendicular to the second direction, and the first clamp (41) and the second clamp (42) are respectively used for clamping two ends of a PCB board, so that the PCB board is parallel to a plane formed by the first direction and the second direction.

2. The automatic feeding device of a PCB board according to claim 1, wherein at least one of the first clamp (41) and the second clamp (42) is a butt clamp mechanism, the butt clamp mechanism includes a first clamp (421) and a second clamp (422), the first clamp (421) and the second clamp (422) are oppositely arranged in a third direction with a clamping gap formed therebetween, and at least one of the first clamp (421) and the second clamp (422) is telescopically arranged in the third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

3. The automatic feeding device of the PCB board according to claim 2, wherein the second moving frame (3) includes a first sliding arm (31) and a second sliding arm (32) arranged at intervals along the third direction, the first sliding arm (31) and the second sliding arm (32) are fixedly connected through a connecting piece (33), the first clamping piece (421) is telescopically mounted on the first sliding arm (31), and the second clamping piece (422) is telescopically mounted on the second sliding arm (32);

Wherein an end of the second movable frame (3) adjacent to the butt clamp mechanism is designed to be in an open structure so as to facilitate operation or material passing along a first direction.

4. An automatic feeding device for a PCB board according to claim 3, wherein the first clamp (41) is a manipulator clamp mechanism and the second clamp (42) is a butt clamp mechanism;

The second moving frame (3) is provided with a first end and a second end, the first clamp (41) is installed on the first end of the first sliding arm (31), a first pair of clamp driving pieces (423) are fixed on the second end of the first sliding arm (31), and driving parts of the first pair of clamp driving pieces (423) are connected with the first clamping pieces (421) and can stretch and retract along the third direction;

The first end of the first sliding arm (31) and the first end of the second sliding arm (32) are fixedly connected through the connecting piece (33), and the second end of the second moving frame (3) is designed to be of an open structure so as to be convenient for operation along a first direction or material passing.

5. An automatic feeding device of a PCB board according to claim 3, wherein the first moving frame (2) includes a third sliding arm (21) and a fourth sliding arm (22) arranged at intervals along the third direction, and the third sliding arm (21) and the fourth sliding arm (22) are slidably connected with the fixed bracket (1) respectively;

One of the first slide arm (31) and the third slide arm (21) is provided with a first slide rail (51) extending in the second direction, and the other is provided with a first slider (52) slidingly engaged with the first slide rail (51);

One of the second slide arm (32) and the fourth slide arm (22) is provided with a second slide rail (53) extending in the second direction, and the other is provided with a second slider (54) in sliding engagement with the second slide rail (53).

6. The automatic feeding device of the PCB according to claim 5, wherein the fixed bracket (1) comprises a first fixed arm (11) and a second fixed arm (12), and the first fixed arm (11) and the second fixed arm (12) are arranged at intervals along the third direction;

Wherein one of the first fixed arm (11) and the third sliding arm (21) is provided with a third slide rail (55) extending in the first direction, and the other is provided with a third slider (56) in sliding engagement with the third slide rail (55);

One of the second fixed arm (12) and the fourth sliding arm (22) is provided with a fourth slide rail (57) extending in the first direction, and the other is provided with a fourth slider (58) in sliding engagement with the fourth slide rail (57).

7. The automatic feeding device of the PCB board according to claim 6, wherein the fixing bracket (1) further comprises a third fixing arm (13), and the first fixing arm (11) and the third fixing arm (13) are arranged at intervals along the second direction;

Install first electronic guide rail (6) on third fixed arm (13), be fixed with first linear drive spare (62) and follow on first electronic slider (61) of first electronic guide rail (6) first direction slidable, just first linear drive spare (62) and third sliding arm (21) fixed connection, the linear drive portion (621) of first linear drive spare (62) with first sliding arm (31) transmission is connected and follows the second direction is scalable.

8. The automatic feeding device of a PCB board according to any one of claims 1 to 7, wherein at least one of the first clamp (41) and the second clamp (42) is slidably arranged along the first direction.

9. The automatic feeding device of the PCB according to claim 8, characterized in that a second electric guide rail (7) is mounted on the second movable frame (3), and one of the first clamp (41) and the second clamp (42) is fixed on a second electric sliding block (71) of the second electric guide rail (7) and can slide along the first direction;

the second electric guide rail (7) is provided with a displacement sensor (8) for judging the moving position of the first clamp (41) or the second clamp (42).

10. An automatic feeding system of PCB board, characterized in that includes:

The automatic feeding device of a PCB board according to any one of claims 1 to 9;

the manipulator is used for conveying the PCB into the automatic feeding device;

And the suspension conveyor moves along the first direction and is provided with a plurality of feeding clamps, and the feeding clamps are used for clamping the PCB sent out in the automatic feeding device.