A robot for screen loading production

Abstract

The present invention discloses a robot for screen loading production, comprising an X-axis translation assembly installed on a mounting frame, wherein a Y-axis translation assembly is provided on the X-axis translation assembly, and a Z-axis translation assembly is provided on the Y-axis translation assembly. A lifting plate is fixedly connected to one side of the Z-axis translation assembly, and a bottom plate of the lifting plate is fixedly connected to a servo motor. A hollow piston is provided in a sealed cavity, and a vacuum suction cup is connected to a hollow screw in cooperation with a hollow rod. When the air in the vacuum suction cup is extracted, the pressure above the hollow piston can be reduced, and the pressure sensor can be used to detect the change in the pressure above the sealed cavity, so as to judge whether the suction cup sucks the screen body or the suction force of the vacuum suction cup is too large, and when the pressure above the hollow piston gradually decreases, the hollow piston moves upward, thereby driving the vacuum suction cup to move upward, thereby sucking up the screen body, and more obviously judging whether the vacuum suction cup sucks the screen body, thereby further improving its practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of manipulators, in particular to a manipulator for screen loading production. Background Art

[0002] In the display screen production industry, screens are placed on a belt for assembly line operations to complete the mounting, bonding, and gluing processes. Currently, all screens in PM workshops are loaded manually, resulting in significant labor waste and significant cost pressure.

[0003] Although there are robots for loading screens on the market, the current robots generally use a method of pressing down the suction cup to make the screen adsorb on the suction cup, and then moving the screen through a moving mechanism. However, it is difficult to accurately judge whether the suction cup has sucked the screen tightly by pressing down and adsorbing. Therefore, in the transportation of a large number of screens, it is inevitable that a small number of suction cups among several suction cups are not adsorbed, causing the screen to tilt and cause damage to the screen. Summary of the Invention

[0004] The purpose of the present invention is to provide a robot for screen loading production. By arranging a hollow piston in a sealed cavity and cooperating with a hollow rod to connect the vacuum suction cup with the hollow screw, when the air in the vacuum suction cup is extracted, the pressure above the hollow piston can be reduced. The pressure sensor can then be used to detect the change in pressure above the sealed cavity, thereby determining whether the suction cup sucks the screen body or the suction force of the vacuum suction cup is too large.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A robot for screen loading production, comprising an X-axis translation assembly mounted on a mounting frame, a Y-axis translation assembly provided on the X-axis translation assembly, a Z-axis translation assembly provided on the Y-axis translation assembly, a hanging plate fixedly connected to one side of the Z-axis translation assembly, a servo motor fixedly connected to the bottom plate of the hanging plate, an output end of the servo motor passing through the hanging plate and fixedly connected to a rotating frame, placement rods provided on both sides of the bottom of the rotating frame, detection assemblies provided on both sides of the placement rods, and a vacuum suction cup connected to the bottom end of the detection assembly;

[0007] The detection assembly includes a connecting rod located at the bottom of the placement rod, a sealed cavity is opened inside the connecting rod, and the outer surface of the connecting rod is fixedly connected to a pressure sensor for detecting the pressure in the sealed cavity.

[0008] As a further solution of the present invention: the outer surface of the connecting rod is fixedly connected to a mounting block located above the pressure sensor, the inner surface of the mounting block is fixedly connected to a hollow screw, the bottom end of the hollow screw passes through the connecting rod and extends to the interior of the sealed cavity, the outer surface of the hollow screw is threadedly connected to a fastening nut, and a support plate is sleeved on the outer surface of the hollow screw and located below the fastening nut.

[0009] As a further solution of the present invention: the top end of the hollow screw is connected to an exhaust valve, the inner surface of the sealed cavity is slidably connected to a hollow piston, the inner surface of the hollow piston is fixedly connected to a hollow rod, the bottom end of the hollow rod passes through the connecting rod and extends to the outside of the connecting rod, and the bottom end of the hollow rod is connected to the top end of the vacuum suction cup.

[0010] As a further solution of the present invention: a return spring is sleeved on the outer surface of the hollow rod, and the bottom end of the return spring is fixedly connected to the bottom of the inner cavity of the sealing cavity.

[0011] As a further solution of the present invention: a movable groove is opened on the top of the rotating frame, the top of the placement rod is rotatably connected with a fixing bolt, and the outer surface of the fixing bolt is slidably connected to the inner surface of the movable groove.

[0012] As a further solution of the present invention: sliding grooves are formed on both sides of the top of the placement rod, and the surface of the mounting block is slidably connected to the inner surface of the sliding groove.

[0013] As a further solution of the present invention: both sides of the rotating frame are fixedly connected with additional plates.

[0014] Beneficial effects of the present invention:

[0015] (1) In the present invention, a hollow piston is provided in the sealed cavity, and the vacuum suction cup is connected to the hollow screw with the hollow rod. When the air in the vacuum suction cup is extracted, the pressure above the hollow piston can be reduced. The pressure sensor can then be used to detect the change in the pressure above the sealed cavity, thereby determining whether the suction cup has sucked the screen or the suction force of the vacuum suction cup is too large. When the pressure above the hollow piston gradually decreases, the hollow piston moves upward, thereby driving the vacuum suction cup to move upward, thereby sucking up the screen. This makes it more obvious to determine whether the vacuum suction cup has sucked the screen, thereby further improving its practicality.

[0016] (2) In the present invention, by opening a movable groove on the rotating frame and utilizing the connection relationship between the fixing bolt and the placement rod, the longitudinal position of the vacuum suction cup can be adjusted. At the same time, the sliding groove on the placement rod and the fastening nut on the detection component can be used to adjust the lateral position of the vacuum suction cup to adapt to the size of the screen body. At the same time, it is set on one side of the rotating frame and the placement rod is set in the same way, which can adapt to larger screen sizes and further improve its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 Schematic diagram of the external structure of the manipulator in the present invention;

[0019] Figure 2 Schematic diagram of the external structure of the rotating frame of the present invention;

[0020] Figure 3 This invention Figure 1 A magnified view of the structure of part A;

[0021] Figure 4 It is a schematic diagram of the internal structure of the detection component in the present invention.

[0022] In the figure: 1. Mounting frame; 2. X-axis translation assembly; 3. Y-axis translation assembly; 4. Z-axis translation assembly; 5. Lifting plate; 6. Servo motor; 7. Rotating frame; 8. Placement rod; 9. Detection assembly; 90. Mounting block; 91. Hollow screw; 92. Exhaust valve; 93. Fastening nut; 94. Connecting rod; 95. Sealing chamber; 96. Pressure sensor; 97. Hollow piston; 98. Return spring; 99. Hollow rod; 10. Sliding groove; 11. Support plate; 12. Vacuum suction cup; 13. Fixing bolt; 14. Moving groove; 15. Additional plate. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4As shown, the present invention is a manipulator for screen loading production, comprising an X-axis translation assembly 2 mounted on a mounting frame 1, a Y-axis translation assembly 3 being provided on the X-axis translation assembly 2, a Z-axis translation assembly 4 being provided on the Y-axis translation assembly 3, a hanging plate 5 being fixedly connected to one side of the Z-axis translation assembly 4, a servo motor 6 being fixedly connected to the bottom plate of the hanging plate 5, an output end of the servo motor 6 passing through the hanging plate 5 and fixedly connected to a rotating frame 7, placement rods 8 being provided on both sides of the bottom of the rotating frame 7, detection components 9 being provided on both sides of the placement rods 8, a vacuum suction cup 12 being connected to the bottom end of the detection component 9, and the detection component 9 being used to detect whether the vacuum suction cup 12 has adsorbed the screen body;

[0025] The detection assembly 9 includes a connecting rod 94 located at the bottom of the placement rod 8, and a sealed cavity 95 is opened inside the connecting rod 94. The outer surface of the connecting rod 94 is fixedly connected to a pressure sensor 96 for detecting the pressure inside the sealed cavity 95. The pressure sensor 96 is connected to an external PLC controller, and the detection end of the pressure sensor 96 passes through the connecting rod 94 and extends to the inside of the sealed cavity 95.

[0026] The outer surface of the connecting rod 94 is fixedly connected to a mounting block 90 above the pressure sensor 96, and the inner surface of the mounting block 90 is fixedly connected to a hollow screw 91. The bottom end of the hollow screw 91 passes through the connecting rod 94 and extends to the inside of the sealed cavity 95. The outer surface of the hollow screw 91 is threadedly connected to a fastening nut 93. The outer surface of the hollow screw 91 and the bottom of the fastening nut 93 are both sleeved with a support plate 11, and the position of the detection component 9 can be fixed by the fastening nut 93.

[0027] The top of the hollow screw 91 is connected to an exhaust valve 92, and the inner surface of the sealed chamber 95 is slidably connected to a hollow piston 97. The inner surface of the hollow piston 97 is fixedly connected to a hollow rod 99. The bottom end of the hollow rod 99 passes through the connecting rod 94 and extends to the outside of the connecting rod 94. The bottom end of the hollow rod 99 is connected to the top of the vacuum suction cup 12, the hollow screw 91 is connected to the sealed chamber 95, and the hollow piston 97 connects the hollow rod 99 and the sealed chamber 95 above the hollow piston 97. Therefore, when the pressure above the hollow piston 97 decreases, the hollow rod 99 can bring The movable hollow piston 97 moves upward inside the sealed chamber 95, thereby driving the vacuum suction cup 12 to move upward, thereby sucking the screen body upward, and more clearly judging whether the vacuum suction cup 12 has sucked the screen body, further improving its practicality. Since the hollow screw 91 is connected to the upper half of the inner cavity of the sealed chamber 95, and the hollow piston 97 connects the hollow rod 99 with the vacuum suction cup 12, when the vacuum suction cup 12 is pressed on the screen body and deformed, the air in the vacuum suction cup 12 enters the top of the hollow piston 97 through the hollow rod 99, and the vacuum suction cup 12 is sucked on the screen body.

[0028] The outer surface of the hollow rod 99 is sleeved with a return spring 98, and the bottom end of the return spring 98 is fixedly connected to the bottom of the inner cavity of the sealing cavity 95. When the screen body is removed, the return spring 98 flushes air into the interior of the sealing cavity 95, so that the vacuum suction cup 12 no longer adsorbs the screen body. At this time, the return spring 98 quickly restores the hollow piston 97 to its initial state.

[0029] A moving groove 14 is formed on the top of the rotating frame 7 , and a fixing bolt 13 is rotatably connected to the top of the placement rod 8 . The outer surface of the fixing bolt 13 is slidably connected to the inner surface of the moving groove 14 .

[0030] Sliding grooves 10 are provided on both sides of the top of the placement rod 8 , and the surface of the mounting block 90 is slidably connected to the inner surface of the sliding groove 10 , and the installation position of the mounting block 90 can be adjusted through the sliding groove 10 .

[0031] Both sides of the rotating frame 7 are fixedly connected with an additional plate 15, and a movable groove 14 with the same structure as that on the rotating frame 7 is opened above the additional plate 15, and a fixing bolt 13 and a placement rod 8 are arranged in the movable groove 14 on the additional plate 15 to connect additional suction cups to enable loading of larger screens, further improving its practicality.

[0032] The working principle of the present invention is as follows: first, the exhaust valve 92 is connected to the external vacuum pipe, and then the X-axis translation assembly 2 and the Y-axis translation assembly 3 are started to make the rotating frame 7 be located above the screen body, and at this time, the placement rods 8 on both sides of the rotating frame 7 are pushed to make the fixing bolts 13 slide on the inner surface of the moving groove 14, and then the fixing bolts 13 are tightened to fix the position of the placement rod 8, and then the support plate 11 is pushed to make the mounting block 90 slide inside the sliding groove 10, thereby adjusting the position of the detection assembly 9, and then the fastening nut 93 is rotated to fix the support plate 11 at a suitable position above the placement rod 8, and at this time, the Z-axis translation assembly 4 and the servo motor 6 are started, and the rotation of the servo motor 6 can drive the rotating frame 7 to rotate, so that the vacuum suction cup 12 on the detection assembly 9 is located above the screen body, and the Z-axis translation assembly 4 makes the lifting plate 5 move downward, thereby driving the rotating frame 7 to move downward, further making the vacuum suction cup 12 on the detection assembly 9 fall above the screen body, and then through the external vacuum generator. The generator extracts the air in the exhaust valve 92. Since the hollow screw 91 is connected to the upper half of the inner cavity of the sealed chamber 95, and the hollow piston 97 connects the hollow rod 99 with the vacuum suction cup 12, when the vacuum suction cup 12 is pressed on the screen body and deformed, the air in the vacuum suction cup 12 enters the top of the hollow piston 97 through the hollow rod 99. At this time, the vacuum suction cup 12 is sucked on the screen body, and then the air in the hollow screw 91 is extracted through the exhaust valve 92. Since the hollow screw 91 and the hollow rod 99 are connected, the screen is All the air between the screen body and the vacuum suction cup 12 is extracted. Then, due to the low pressure above the hollow piston 97, the hollow piston 97 slides upward inside the sealed cavity 95, thereby driving the screen body on the vacuum suction cup 12 to move upward. When the pressure sensor 96 detects that the pressure inside the sealed cavity 95 is too low or has not changed, an alarm is issued through the PLC controller, and then the screen body is moved to the specified position through the cooperation between the X-axis translation component 2, the Y-axis translation component 3 and the Z-axis translation component 4.

[0033] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A robot for screen loading production, comprising an X-axis translation assembly (2) mounted on a mounting frame (1), a Y-axis translation assembly (3) being provided on the X-axis translation assembly (2), and a Z-axis translation assembly (4) being provided on the Y-axis translation assembly (3), characterized in that: One side of the Z-axis translation component (4) is fixedly connected to a hanging plate (5), a bottom plate of the hanging plate (5) is fixedly connected to a servo motor (6), an output end of the servo motor (6) passes through the hanging plate (5) and is fixedly connected to a rotating frame (7), both sides of the bottom of the rotating frame (7) are provided with placement rods (8), both sides of the placement rods (8) are penetrated by detection components (9), and the bottom end of the detection component (9) is connected to a vacuum suction cup (12); The detection assembly (9) includes a connecting rod (94) located at the bottom of the placement rod (8), a sealed cavity (95) is provided inside the connecting rod (94), and a pressure sensor (96) for detecting the pressure in the sealed cavity (95) is fixedly connected to the outer surface of the connecting rod (94); The outer surface of the connecting rod (94) is fixedly connected to a mounting block (90) above the pressure sensor (96); the inner surface of the mounting block (90) is fixedly connected to a hollow screw (91); the bottom end of the hollow screw (91) passes through the connecting rod (94) and extends to the inside of the sealing cavity (95); the outer surface of the hollow screw (91) is threadedly connected to a fastening nut (93); the outer surface of the hollow screw (91) and below the fastening nut (93) are sleeved with a support plate (11); The top end of the hollow screw (91) is connected to an air extraction valve (92), the inner surface of the sealing chamber (95) is slidably connected to a hollow piston (97), the inner surface of the hollow piston (97) is fixedly connected to a hollow rod (99), the bottom end of the hollow rod (99) passes through the connecting rod (94) and extends to the outside of the connecting rod (94), and the bottom end of the hollow rod (99) is connected to the top end of the vacuum suction cup (12); The outer surface of the hollow rod (99) is sleeved with a return spring (98), and the bottom end of the return spring (98) is fixedly connected to the bottom of the inner cavity of the sealing cavity (95).

2. A robot for screen loading production according to claim 1, characterized in that: A movable groove (14) is provided on the top of the rotating frame (7), and a fixing bolt (13) is rotatably connected to the top of the placement rod (8), and the outer surface of the fixing bolt (13) is slidably connected to the inner surface of the movable groove (14).

3. A robot for screen loading production according to claim 1, characterized in that: Sliding grooves (10) are provided on both sides of the top of the placement rod (8), and the surface of the mounting block (90) is slidably connected to the inner surface of the sliding groove (10).

4. A robot for screen loading production according to claim 3, characterized in that: Both sides of the rotating frame (7) are fixedly connected with mounting plates (15).

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