A switching structure compatible with multi-layer suction cups

Abstract

The present invention provides a switching structure compatible with multi-layer suction cups, which can quickly switch between three suction cup structures, thereby enabling the production to switch suction cups without stopping the machine, making the production line highly efficient, and the suction cup switching stable and reliable. It includes: a fixed plate; a first movable plate, a surface of which is fixedly provided with a group of downwardly convex first suction cups; and a second movable plate, which includes a group of downwardly convex second suction cups; the fixed plate, the first movable plate, and the second movable plate are arranged in parallel from top to bottom, and the four corners of the fixed plate are respectively provided with a first linear guide column and a second linear guide column, the lower part of the first linear guide column is fixedly connected to the corresponding four corners of the first movable plate, and the lower part of the second linear guide column is fixedly connected to the corresponding four corners of the second movable plate; the first linear guide column and the second linear guide column are respectively provided with linear bearings corresponding to the through-hole positions of the fixed plate.

Description

Technical Field

[0001] The invention relates to the technical field of suction cup structures, and in particular to a switching structure compatible with multi-layer suction cups. Background Art

[0002] In the computer automation production industry, compatibility with multiple PCB board suction cup switching has become an important component. Because the motherboard often changes models, an automatic suction cup switching structure is required in the automated production operation to complete the material removal. The existing mechanism changes lines frequently and at a fast pace. It generally replaces the suction cup quickly by automatically assembling and disassembling the corresponding suction cup, which makes the equipment cost of changing the suction cup high, and when replacing the suction cup, it is necessary to stop the operation, which is not conducive to the efficient production operation of the production line. Summary of the invention

[0003] In response to the above problems, the present invention provides a switching structure compatible with multi-layer suction cups, which can quickly switch between three suction cup structures, so that the production does not need to be stopped to switch the suction cups, which makes the production operation of the production line efficient and the suction cup switching is stable and reliable.

[0004] A switching structure compatible with multi-layer suction cups, characterized in that it comprises:

[0005] Fixed plate;

[0006] A first movable plate, a group of downwardly convex first suction cups are fixedly arranged on the surface of the first movable plate;

[0007] and a second movable plate, which includes a set of downwardly convex second suction cups fixedly provided thereon;

[0008] The fixed plate, the first movable plate, and the second movable plate are arranged in parallel from top to bottom, and the four corners of the fixed plate are respectively provided with a first linear guide column and a second linear guide column, the lower part of the first linear guide column is fixedly connected to the corresponding four corners of the first movable plate, and the lower part of the second linear guide column is fixedly connected to the corresponding four corners of the second movable plate;

[0009] The first linear guide column and the second linear guide column are respectively provided with linear bearings at positions corresponding to the through holes of the fixed plate, and a first elastic element is provided on the upper part of the first linear guide column, so that the first movable plate maintains a set height spacing distance with the fixed plate when no external force is applied;

[0010] A second elastic element is disposed on the upper portion of the second linear guide column, and the second elastic element enables the second movable plate to maintain a set height spacing distance from the fixed plate when no external force is applied;

[0011] The first movable plate is provided with a first convex guide block, the second movable plate is provided with a second convex guide block, the first guide block is provided with a first guide slope, the second guide block is provided with a second guide slope, the first guide slope and the second guide slope are arranged opposite to each other, and a horizontal spacing distance in the X direction is left between them, the first guide slope and the second guide slope are both inclined planes arranged obliquely upward from the inside to the outside, wherein the inside refers to the X-direction center position of the movable plate, and the outside refers to the X-direction edge position of the movable plate;

[0012] A slider is arranged above the fixed plate corresponding to the space between the X-direction horizontal intervals. The slider is arranged to move along the X-direction. The slider is convex to form a pressing rod. The pressing rod is used to drive the first guide slope or the second guide slope to descend. The power input end of the slider is externally connected to an X-direction linear drive mechanism.

[0013] It is further characterized by:

[0014] The X-axis linear driving mechanism is specifically an X-axis driving cylinder, the cylinder seat of the X-axis driving cylinder is fixedly mounted on the lower surface of the fixed plate, and the piston end of the X-axis driving cylinder is fixedly connected to the corresponding side convex connecting piece of the slider;

[0015] The X-axis driving cylinder includes three states, a zero-position state, an X-axis positive ejection state, and an X-axis negative retraction state. In the zero-position state, the pressing rod does not contact any guide slope, and the first suction cup and the second suction cup are combined to form a first overall suction cup state; in the X-axis positive ejection state, the pressing rod presses the first guide slope along the X positive direction, so that the first movable plate is pressed downward along the first linear guide column, thereby causing the first suction cup to move downward as a whole, and forming a second overall suction cup state with the second suction cup; in the X-axis negative retraction state, the pressing rod presses the second guide slope along the X negative direction, so that the second movable plate is pressed downward along the second linear guide column, thereby causing the second suction cup to move downward as a whole, and forming a third overall suction cup state with the first suction cup;

[0016] It also includes two groups of Y-direction limit cylinders, the cylinder seats of the two groups of Y-direction limit cylinders are respectively fixed on the lower surface of the corresponding positions of the fixed plate, the piston end of each Y-direction limit cylinder is arranged toward the slider, the slider includes a side convex limit block, and the piston end of each Y-direction limit cylinder is respectively provided with a limit guide block, and the limit guide block is respectively used to limit the side convex limit block corresponding to the positive and negative movements of the X-direction;

[0017] A connecting block is fixedly provided at the bottom of the sliding block, and downward convex connecting rods are respectively provided at the two ends of the connecting block corresponding to the X direction, and corresponding pressing rods are fixedly inserted on the downward convex connecting rods, so as to ensure that the pressing of the pressing rods is stable and reliable;

[0018] Each of the pressing rods is specifically a rotating bearing, and the rotating bearing ensures that the corresponding pressing surface will not be damaged, ensuring that the entire structure works stably and reliably for a long time;

[0019] The fixed plate is also provided with a first non-contact displacement sensor and a second non-contact displacement sensor, respectively. The first non-contact displacement sensor is used to measure the moving distance of the first movable plate, and the second non-contact displacement sensor is used to measure the moving distance of the second movable plate.

[0020] After adopting the structure of the present invention, the X-axis linear drive mechanism drives the slider to move in the X-axis, and when the pressing rod is not pressed against any inclined surface, the first suction cup and the second suction cup are combined to form a first overall suction cup state; when the pressing rod is pressed against the first guide inclined surface, the first movable plate is pressed downward along the first linear guide column, and then the first suction cup moves downward as a whole, forming a second overall suction cup state with the second suction cup; when the pressing rod is pressed against the second guide inclined surface, the second movable plate is pressed downward along the second linear guide column, and then the second suction cup moves downward as a whole, forming a third overall suction cup state with the first suction cup; through the action of the X-axis linear drive mechanism, the three suction cup structures can be quickly switched, so that the production does not need to stop the operation to switch the suction cup, which makes the production operation of the production line efficient and the suction cup switching stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the main view structure of the present invention;

[0023] Figure 3 It is a side view structural schematic diagram of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention without the fixing plate;

[0025] The names corresponding to the serial numbers in the figure are as follows:

[0026] The fixed plate 10, the first movable plate 20, the first suction cup 21, the second movable plate 30, the second suction cup 31, the first linear guide column 40, the first elastic element 41, the second linear guide column 50, the second elastic element 51, the linear bearing 60, the first guide block 70, the first guide slope 71, the second guide block 80, the second guide slope 81, the slide rail 90, the slider 100, the side convex connecting piece 101, the side convex limiting block 102, the connecting block 103, the lower convex connecting rod 104, the pressing rod 110, the X-axis driving cylinder 120, the jacket 121, the Y-axis limiting cylinder 130, the limiting guide block 140, the first non-contact displacement sensor 150, and the second non-contact displacement sensor 160. DETAILED DESCRIPTION

[0027] A switching structure compatible with multi-layer suction cups, see Figure 1-Figure 4 , which includes:

[0028] Fixed plate 10;

[0029] A first movable plate 20, a group of downwardly convex first suction cups 21 are fixedly disposed on its surface;

[0030] and a second movable plate 30, which includes a set of downwardly convex second suction cups 31 fixed thereto;

[0031] The upper gas path parts of the first suction cup 21 and the second suction cup 31 are both convexly arranged in the three-dimensional space, and the first movable plate 20 is provided with a corresponding avoidance hole at the convex position corresponding to the second suction cup 31;

[0032] The fixed plate 10, the first movable plate 20, and the second movable plate 30 are arranged in parallel from top to bottom, and the four corners of the fixed plate 10 are respectively provided with a first linear guide column 40 and a second linear guide column 50, the lower part of the first linear guide column 40 is fixedly connected to the corresponding four corners of the first movable plate 20, the lower part of the second linear guide column 50 is fixedly connected to the corresponding four corners of the second movable plate 30, and the first movable plate 20 is provided with a through avoidance hole at a position corresponding to the second linear guide column 50;

[0033] The first linear guide column 40 and the second linear guide column 50 are respectively provided with linear bearings 60 at positions corresponding to the through holes of the fixed plate 10. The first linear guide column 40 is provided with a first elastic element 41 on the upper part. The first elastic element 41 enables the first movable plate 20 to maintain a set height spacing distance with the fixed plate 10 when no external force is applied. In a specific implementation, the first elastic element 41 is specifically a first linear spring.

[0034] A second elastic element 51 is disposed on the upper portion of the second linear guide column 50. The second elastic element 51 enables the second movable plate 30 to maintain a set height spacing distance from the fixed plate 10 when no external force is applied. In a specific implementation, the second elastic element 51 is specifically a second linear spring.

[0035] The first movable plate 20 is provided with an upwardly convex first guide block 70, the second movable plate 30 is provided with an upwardly convex second guide block 80, the first guide block 70 is provided with a first guide slope 71, the second guide block 80 is provided with a second guide slope 81, the first guide slope 71 and the second guide slope 81 are arranged opposite to each other, and a horizontal spacing distance in the X direction is left between them, the first guide slope 71 and the second guide slope 81 are both inclined surfaces arranged obliquely upward from the inside to the outside, wherein the inside refers to the X-direction center position of the corresponding movable plate, and the outside refers to the X-direction edge position of the corresponding movable plate, and the inclinations of the first guide slope 71 and the second guide slope 81 are set according to the position of the suction nozzle;

[0036] The fixed plate 10 corresponds to the slide rail 90 above the space between the horizontal intervals in the X direction, and a slider 100 is embedded in the lower part of the slide rail 90. The slider 100 is arranged to move along the X direction of the slide rail 90. The slider 100 has a side convexity formed with a pressing rod 110, which is used to drive the first guide inclined surface 71 or the second guide inclined surface 72 to descend. The power input end of the slider 100 is externally connected to an X-direction linear drive mechanism.

[0037] In specific implementation, the X-axis linear driving mechanism is specifically an X-axis driving cylinder 120, the cylinder seat of the X-axis driving cylinder 120 is fixedly mounted on the lower surface of the fixed plate 10, and the piston end of the X-axis driving cylinder 120 is fixedly connected to the corresponding side convex connecting piece 101 of the sliding block 100; in a specific embodiment, a jacket 121 is provided at the piston end, and the side convex connecting piece is clamped in the spacing of the jacket;

[0038] The X-axis driving cylinder 120 includes three states, a zero-position state, an X-axis positive ejection state, and an X-axis negative retraction state. In the zero-position state, the pressing rod 110 does not contact any guide slope, and the first suction cup 21 and the second suction cup 31 are combined to form a first overall suction cup state; in the X-axis positive ejection state, the pressing rod 110 presses the first guide slope 71 along the X positive direction, so that the first movable plate 20 is pressed downward along the first linear guide column 40, thereby causing the first suction cup 21 to move downward as a whole, and forming a second overall suction cup state with the second suction cup 31; in the X-axis negative retraction state, the pressing rod 110 presses the second guide slope 81 along the X negative direction, so that the second movable plate 30 is pressed downward along the second linear guide column 50, thereby causing the second suction cup 31 to move downward as a whole, and forming a third overall suction cup state with the first suction cup 21;

[0039] It also includes two groups of Y-direction limit cylinders 130, the cylinder seats of the two groups of Y-direction limit cylinders 130 are respectively fixed on the lower surface of the corresponding position of the fixed plate 10, the piston end of each Y-direction limit cylinder 130 is arranged toward the slider 100, the slider 100 includes a side convex limit block 102, and the piston end of each Y-direction limit cylinder 130 is respectively provided with a limit guide block 140, and the limit guide block 140 is respectively used to limit the side convex limit block 102 corresponding to the positive and negative movements of the X-direction;

[0040] During specific implementation, the piston end of the positive Y-direction limit cylinder 130 drives the corresponding limit guide block to move, so that the slider 100 cannot move in the positive direction; the piston end of the negative Y-direction limit cylinder 130 drives the corresponding limit guide block to move, so that the slider 100 cannot move in the negative direction; when the piston ends of the two Y-direction limit cylinders 130 extend at the same time, the side convex limit block 102 is stuck by the limit guide blocks 140 on both sides and cannot move in the X direction, ensuring that the entire suction cup is in the first overall suction cup state;

[0041] A connecting block 103 is fixedly provided at the bottom of the slider 100, and downward convex connecting rods 104 are respectively provided at the two ends of the connecting block 103 corresponding to the X direction, and corresponding pressing rods 110 are fixedly inserted on the downward convex connecting rods 104, which ensures that the pressing of the pressing rods 110 is stable and reliable;

[0042] Each pressing rod 110 is specifically a rotating bearing, which ensures that the corresponding pressing surface will not be damaged, ensuring that the entire structure works stably and reliably for a long time;

[0043] A first non-contact displacement sensor 150 and a second non-contact displacement sensor 160 are also provided on the fixed plate 10. The first non-contact displacement sensor 150 is used to measure the moving distance of the first movable plate 20, and the second non-contact sensor 160 is used to measure the moving distance of the second movable plate 30. The non-contact displacement sensor is used to accurately feedback the distance between the movable plate and the fixed plate and detect whether the switching is in place.

[0044] Its working principle is as follows: the X-axis linear drive mechanism drives the slider to move in the X-axis. When the pressure-attachment rod is not pressed onto any inclined surface, the first suction cup and the second suction cup are combined to form a first overall suction cup state; when the pressure-attachment rod is pressed onto the first guide inclined surface, the first movable plate is pressed downward along the first linear guide column, thereby causing the first suction cup to move downward as a whole and form a second overall suction cup state with the second suction cup; when the pressure-attachment rod is pressed onto the second guide inclined surface, the second movable plate is pressed downward along the second linear guide column, thereby causing the second suction cup to move downward as a whole and form a third overall suction cup state with the first suction cup; through the action of the X-axis linear drive mechanism, the three suction cup structures can be quickly switched, thereby allowing production to switch suction cups without stopping the machine, which makes the production line's production operations efficient and the suction cup switching stable and reliable.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A switching structure compatible with multi-layer suction cups, It is characterized in that It includes: Fixed plate; A first movable plate, a group of downwardly convex first suction cups are fixedly disposed on the surface of the first movable plate; and a second movable plate, which includes a set of downwardly convex second suction cups fixedly provided thereon; The fixed plate, the first movable plate, and the second movable plate are arranged in parallel from top to bottom, and the four corners of the fixed plate are respectively provided with a first linear guide column and a second linear guide column, the lower part of the first linear guide column is fixedly connected to the corresponding four corners of the first movable plate, and the lower part of the second linear guide column is fixedly connected to the corresponding four corners of the second movable plate; The first linear guide column and the second linear guide column are respectively provided with linear bearings at positions corresponding to the through holes of the fixed plate, and a first elastic element is provided on the upper part of the first linear guide column, so that the first movable plate maintains a set height spacing distance with the fixed plate when no external force is applied; A second elastic element is disposed on the upper portion of the second linear guide column, and the second elastic element enables the second movable plate to maintain a set height spacing distance from the fixed plate when no external force is applied; The first movable plate is provided with a first convex guide block, the second movable plate is provided with a second convex guide block, the first guide block is provided with a first guide slope, the second guide block is provided with a second guide slope, the first guide slope and the second guide slope are arranged opposite to each other, and a horizontal spacing distance in the X direction is left between them, the first guide slope and the second guide slope are both inclined planes arranged obliquely upward from the inside to the outside, wherein the inside refers to the X-direction center position of the movable plate, and the outside refers to the X-direction edge position of the movable plate; A slider is arranged above the fixed plate corresponding to the space between the X-direction horizontal intervals, the slider is arranged to move along the X-direction, the slider is convex to form a pressing rod, the pressing rod is used to drive the first guide slope or the second guide slope to descend, and the power input end of the slider is externally connected to an X-direction linear drive mechanism; The X-axis linear driving mechanism is specifically an X-axis driving cylinder, the cylinder seat of the X-axis driving cylinder is fixedly mounted on the lower surface of the fixed plate, and the piston end of the X-axis driving cylinder is fixedly connected to the corresponding side convex connecting piece of the slider; A connecting block is fixedly arranged at the bottom of the sliding block, and downward convex connecting rods are respectively arranged at two ends of the connecting block corresponding to the X direction, and corresponding pressing rods are fixedly inserted into the downward convex connecting rods.

2. A switching structure compatible with multi-layer suction cups as claimed in claim 1, Features: The X-axis driving cylinder includes three states, a zero-position state, an X-axis positive ejection state, and an X-axis negative retraction state. In the zero-position state, the pressing rod does not contact any guide slope, and the first suction cup and the second suction cup are combined to form a first overall suction cup state; in the X-axis positive ejection state, the pressing rod presses the first guide slope along the X positive direction, so that the first movable plate is pressed downward along the first linear guide column, thereby causing the first suction cup to move downward as a whole, and forming a second overall suction cup state with the second suction cup; in the X-axis negative retraction state, the pressing rod presses the second guide slope along the X negative direction, so that the second movable plate is pressed downward along the second linear guide column, thereby causing the second suction cup to move downward as a whole, and forming a third overall suction cup state with the first suction cup.

3. A switching structure compatible with multi-layer suction cups as claimed in claim 2, Features: It also includes two groups of Y-direction limit cylinders, the cylinder seats of the two groups of Y-direction limit cylinders are respectively fixed on the lower surface of the corresponding positions of the fixed plate, the piston end of each Y-direction limit cylinder is arranged toward the slider, the slider includes a side convex limit block, and the piston end of each Y-direction limit cylinder is respectively provided with a limit guide block, and the limit guide block is respectively used to limit the side convex limit block corresponding to the positive and negative movements of the X-direction.

4. A switching structure compatible with multi-layer suction cups as claimed in claim 1, Features: Each of the pressing rods is specifically a rotary bearing.

5. A switching structure compatible with multi-layer suction cups as claimed in claim 1, Features: The fixed plate is also provided with a first non-contact displacement sensor and a second non-contact displacement sensor, respectively. The first non-contact displacement sensor is used to measure the moving distance of the first movable plate, and the second non-contact displacement sensor is used to measure the moving distance of the second movable plate.

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