Pneumatic four-claw centering chuck manipulator jig for water tank fan blade positioning

Abstract

The utility model relates to the technical field of clamping and positioning, in particular to a pneumatic four-claw centering chuck manipulator jig for positioning a fan blade of a water tank, which comprises an operation table, the fan blade is arranged at the upper end of the operation table, and a first clamping claw for fixing the fan blade is arranged at the lower end of the fan blade. A second clamping jaw used for pre-tightening fan blades is arranged on one side of the first clamping jaw, a push rod is fixedly connected to the center of the rear end of the second clamping jaw, an air pressure bin is arranged at the end, away from the connecting position, of the push rod, a pressure relief pipe used for pressure relief is fixedly connected to the outer side of the air pressure bin, and a spring used for rebounding is fixedly connected into the air pressure bin. According to the pneumatic four-claw centering chuck manipulator jig for positioning the fan blades of the water tank, the pneumatic four-claw centering chuck manipulator jig for positioning the fan blades of the water tank is realized by detecting whether the clamping device is used for completely positioning the object or not while pre-tightening the object when the object is placed on the operation table.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping and positioning, in particular to a pneumatic four-claw centering chuck manipulator fixture for positioning water tank fan blades. Background Art

[0002] In modern industrial production, the degree of automation continues to increase to improve production efficiency, ensure product quality, and reduce labor costs. The production and assembly of water tank fan blades also require efficient and precise automated equipment to meet the needs of large-scale production. As an important component of automated production, robotic arms enable fast and accurate operation, improving production efficiency and stability.

[0003] Traditional positioning fixtures do not pre-tighten objects when clamping them, which may cause the equipment to remove the object before it is fully clamped, which may affect subsequent production.

[0004] In view of this, the existing problems are studied and improved, and a pneumatic four-jaw centering chuck robot fixture for positioning water tank fan blades is provided. It has a reasonable structural design, high stability, and takes into account all aspects of application. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model realizes a pneumatic four-claw centering chuck manipulator fixture for positioning water tank fan blades by pre-tightening the object when it is placed on the operating table and detecting whether the clamping device has completely positioned the object.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades, comprising an operating table, a fan blade is provided at the upper end of the operating table, a first clamping jaw for fixing the fan blade is provided at the lower end of the fan blade, a second clamping jaw for pre-tightening the fan blade is provided on one side of the first clamping jaw, a push rod is fixedly connected to the rear end center of the second clamping jaw, an air pressure chamber is provided at the end of the push rod away from the connection, a pressure relief pipe for pressure relief is fixedly connected to the outside of the pressure chamber, and a spring for rebound is fixedly connected to the inside of the pressure chamber. The end of the air pressure chamber away from the push rod is fixedly connected to a hose, one end of the first clamp is fixedly connected to a rack for transmission, a gear meshing with the rack is provided on one side of the rack, a connecting rod A is fixedly connected to the center of the lower end of the gear, the end of the connecting rod A away from the gear is connected to the air intake pipe, the output end of the air intake pipe is connected to a four-way connecting valve, a cylinder for driving is fixedly connected to the inside of the operating table, a turntable is provided at the center of the lower end of the operating table, a connecting rod B is provided around the turntable, and the end of the connecting rod B away from the turntable is movably connected to a slider.

[0007] Preferably, the fan blade is fixed at the center of the upper end of the operating table, and four groups of the first clamps are provided around the lower end of the fan blade, and the first clamps are connected to the lower end slider.

[0008] Preferably, the second clamping jaws are provided with four groups on one side of the first clamping jaw, the centers of the four groups of second clamping jaws coincide with the centers of the first clamping jaws, and each group of air pressure chambers is provided with a pressure relief pipe, the pressure relief speed of the pressure relief pipe is less than the air intake speed of the air pressure chamber.

[0009] Preferably, the rear end of each group of air pressure chambers is connected to a hose for delivering air pressure, and the four groups of hoses are connected to the four groups of connecting ports of the four-way connecting valve at the lower end. The four-way connecting valve draws air through the air inlet pipe to disperse the air to the hose, thereby entering the air pressure chamber.

[0010] Preferably, the rack is fixedly connected to one side of the first clamping jaw, and a gear is fixedly connected to one side of the rack. The gear and the rack are in the same plane, and the connecting rod A at the lower end of the gear is connected to the valve inside the intake pipe.

[0011] Preferably, the cylinder is fixedly connected to the lower end of the device, which is fixed to the lower end of the connecting rod B. The turntable is movably connected to the center of the lower end of the device, and its axis coincides with the axis of the first clamping jaw.

[0012] Preferably, the connecting rod B is movably connected with four groups around the turntable, and the four groups of connecting rods B will gradually retract through the sliding groove as the turntable rotates. The slider is fixedly connected to one end of the connecting rod B, and the movement of the connecting rod B drives the first clamping claw at the upper end to move.

[0013] The utility model has the following beneficial effects: when the slider moves, since the first clamping jaw is fixedly connected to the slider, the first clamping jaw will move synchronously with the slider, and when the slider moves, it will drive the rack to move, and when the rack moves to the gear position, it will drive the gear to rotate. Because the gear is connected to the valve inside the intake pipe through the connecting rod A, when the rack pushes the gear to rotate, the valve will be closed, so that the intake pipe stops taking in air. After the air intake stops, the air pressure chamber will gradually discharge the air through the pressure relief pipe. After the air is discharged, the push rod will gradually retract due to the tension of the spring, thereby retracting it, so that the second clamping jaw is separated from the fixation of the fan blades. If the first clamping jaw fails and cannot be fixed, the gear will not be able to close the valve. Because the second clamping jaw is small, it cannot completely fix the fan blades. When the first clamping jaw is not clamped, the fan blades cannot be removed, thereby ensuring that the fan blades are in a completely fixed state every time they are picked up, reducing the occurrence of malfunctions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall diagram of a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades proposed in the utility model;

[0015] Figure 2 This is an internal diagram of a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades proposed in the utility model;

[0016] Figure 3 This is an internal side view of a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades proposed in the utility model;

[0017] Figure 4 This is a cross-sectional view of a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades proposed in the present invention;

[0018] Figure 5 This is an enlarged view of A of a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades proposed in the present invention;

[0019] Figure 6 This is a connection diagram of a pneumatic four-jaw centering chuck robot fixture for positioning water tank fan blades proposed in the utility model.

[0020] Legend:

[0021] 1. Operating table; 2. Fan blade; 3. First clamping jaw; 4. Second clamping jaw; 5. Push rod; 6. Air pressure chamber; 7. Pressure relief pipe; 8. Spring; 9. Hose; 10. Rack; 11. Gear; 12. Connecting rod A; 13. Inlet pipe; 14. Four-way connecting valve; 15. Cylinder; 16. Turntable; 17. Connecting rod B; 18. Slider. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figure 1-6 , the utility model provides an embodiment: a pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades, including an operating table 1, a fan blade 2 is provided at the upper end of the operating table 1, a first clamping jaw 3 for fixing the fan blade 2 is provided at the lower end of the fan blade 2, a second clamping jaw 4 for pre-tightening the fan blade 2 is provided on one side of the first clamping jaw 3, a push rod 5 is fixedly connected to the rear end center of the second clamping jaw 4, an end of the push rod 5 away from the connection is provided with an air pressure chamber 6, a pressure relief pipe 7 for pressure relief is fixedly connected to the outside of the air pressure chamber 6, a spring 8 for rebound is fixedly connected to the inside of the air pressure chamber 6, and the end of the air pressure chamber 6 away from the push rod 5 is fixed A hose 9 is fixedly connected, one end of the first clamp 3 is fixedly connected to a rack 10 for transmission, a gear 11 meshing with the rack 10 is provided on one side of the rack 10, a connecting rod A12 is fixedly connected to the center of the lower end of the gear 11, the end of the connecting rod A12 away from the gear 11 is connected to the air intake pipe 13, the output end of the air intake pipe 13 is connected to a four-way connecting valve 14, a cylinder 15 for driving is fixedly connected to the inside of the operating table 1, a turntable 16 is provided at the center of the lower end of the operating table 1, a connecting rod B17 is provided around the turntable 16, and a slider 18 is movably connected to the end of the connecting rod B17 away from the turntable 16.

[0025] In an optional embodiment: the fan blade 2 is located at the center of the upper end of the operating table 1 for fixation, and four groups of first clamps 3 are provided around the lower end of the fan blade 2, and the first clamps 3 are connected to the lower end slider 18. When the fan is placed on the upper end of the operating table 1, it will be fixed by the first clamps 3, thereby fixing it to prevent the fan blade 2 from being placed unevenly and being taken away.

[0026] In an optional embodiment: the second jaws 4 are provided with four groups on one side of the first jaw 3, the centers of the four groups of second jaws 4 coincide with the centers of the first jaw 3, each group of air pressure chambers 6 is provided with a pressure relief pipe 7, and the pressure relief speed of the pressure relief pipe 7 is lower than the air intake speed of the air pressure chamber 6, and the second jaws 4 pre-tighten the fan blades 2 to prevent the fan blades 2 from not being clamped and fixed by the first jaws 3.

[0027] In an optional embodiment: the rear end of each group of air pressure chambers 6 is connected to a hose 9 for conveying air pressure, and the four groups of hoses 9 are connected to the four groups of connection ports of the four-way connecting valve 14 at the lower end. The four-way connecting valve 14 draws air through the air inlet pipe 13 to disperse the air to the hose 9, thereby entering the air pressure chamber 6. When the fan blades 2 are prevented from being on the operating table 1, the air inlet pipe 13 will convey the air to each air pressure chamber 6 through the hose 9 through the four-way connecting valve 14. After the air enters the air pressure chamber 6, the internal pressure of the air pressure chamber 6 increases, thereby squeezing out the push rod 5. When the push rod 5 is pushed out, the center of the second clamp 4 coincides with the center of the operating table 1. Therefore, when it is pushed, no matter where the fan blades 2 stay, they will be pushed to the center of the operating table 1 by the second clamp 4 for pre-tightening, thereby improving its convenience in use.

[0028] In an optional embodiment: a rack 10 is fixedly connected to one side of the first clamping jaw 3, and a gear 11 is fixedly connected to one side of the rack 10, and the gear 11 and the rack 10 are in the same plane, and the connecting rod A12 at the lower end of the gear 11 is connected to the internal valve of the air intake pipe 13. After the second clamping jaw 4 pre-tightens the fan blade 2, the first clamping jaw 3 will pull the slider 18 through the lower end cylinder 15. When pulling, the connecting rod B17 will shrink inward, thereby causing the turntable 16 to rotate and drive the connecting rods B17 on the other sides to fold. When the connecting rod B17 shrinks inward, it will drive the slider 18 to move inward. When the slider 18 moves, since the first clamping jaw 3 is fixedly connected to the slider 18, the first clamping jaw 3 will move synchronously with the slider 18. When the slider 18 moves, it will drive the rack 10 to move. When it moves to the position of gear 11, it will drive gear 11 to rotate. Because gear 11 is connected to the internal valve of the intake pipe 13 through connecting rod A12, when the rack 10 pushes gear 11 to rotate, the valve will be closed, so that the intake pipe 13 stops taking in air. After the air intake stops, the air pressure chamber 6 will gradually discharge the air through the pressure relief pipe 7. After the air is discharged, the push rod 5 will gradually retract due to the tension of the spring 8, so that the second clamp 4 will be separated from the fixation of the fan blade 2. If the first clamp 3 fails and cannot be fixed, the gear 11 will not be able to close the valve. Because the second clamp 4 is small, the fan blade 2 cannot be completely fixed. When the first clamp 3 is not clamped, the fan blade 2 cannot be removed, thereby ensuring that the fan blade 2 is in a completely fixed state every time it is picked up, reducing the occurrence of faults.

[0029] In an optional embodiment: the cylinder 15 is fixedly connected to the lower end of the device, which is fixed to the lower end of the connecting rod B17. The turntable 16 is movably connected to the center of the lower end of the device, and its axis coincides with the axis of the first clamping jaw 3. When the cylinder 15 contracts, it will pull the diagonal slider 18 to move, and the slider 18 will drive the connecting rod B17 to contract. When the connecting rod B17 contracts, it will drive the turntable 16 to rotate, thereby driving the other sliders 18 to contract together.

[0030] In an optional embodiment: there are four groups of connecting rods B17 movably connected around the turntable 16, and the four groups of connecting rods B17 will gradually retract through the sliding groove as the turntable 16 rotates. The slider 18 is fixedly connected to one end of the connecting rod B17, and the movement of the connecting rod B17 drives the upper end first clamping jaw 3 to move. The sliding method adopts a dovetail structure, abandoning the traditional guide rail slider mechanism, and is suitable for heavy load occasions.

[0031] Working principle and process: The manipulator places the fan blade 2 at any position on the upper end of the operating table 1, and the air inlet pipe 13 will disperse the air through the four-way connecting valve 14, and then enter the inside of the air pressure chamber 6 through the hose 9, thereby pushing the push rod 5 out. When the push rod 5 is pushed out, it will push the fan blade 2 to move toward the center, thereby pre-tightening it. After the second clamp 4 pre-tightens the fan blade 2, the cylinder 15 will rotate through the contraction belt turntable 16. The rotation of the turntable 16 will drive the connecting rod B17 to contract. When the connecting rod B17 contracts, it will drive the slider 18 to move, thereby driving the first clamp 3 to clamp the fan blade 2.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades, comprising an operating table (1), characterized in that: The upper end of the operating table (1) is provided with a fan blade (2), the lower end of the fan blade (2) is provided with a first clamping claw (3) for fixing the fan blade (2), a side of the first clamping claw (3) is provided with a second clamping claw (4) for pre-tightening the fan blade (2), the rear end center of the second clamping claw (4) is fixedly connected to a push rod (5), the end of the push rod (5) away from the connection is provided with an air pressure chamber (6), the outside of the air pressure chamber (6) is fixedly connected to a pressure relief pipe (7) for pressure relief, the inside of the air pressure chamber (6) is fixedly connected to a spring (8) for rebound, the end of the air pressure chamber (6) away from the push rod (5) is fixedly connected to a hose (9), one end of the first clamping claw (3) is fixedly connected to a pressure relief pipe (7) for pressure relief, and the inside of the air pressure chamber (6) is fixedly connected to a pressure relief pipe (8) for pressure relief. A transmission rack (10), a gear (11) meshing with the rack (10) is provided on one side of the rack (10), a connecting rod A (12) is fixedly connected at the center of the lower end of the gear (11), an end of the connecting rod A (12) away from the gear (11) is connected to an air intake pipe (13), an output end of the air intake pipe (13) is connected to a four-way connecting valve (14), a cylinder (15) for driving is fixedly connected inside the operating table (1), a turntable (16) is provided at the center of the lower end of the operating table (1), a connecting rod B (17) is provided around the turntable (16), and an end of the connecting rod B (17) away from the turntable (16) is movably connected to a slider (18).

2. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized by: The fan blade (2) is fixed at the center of the upper end of the operating table (1), and four groups of the first clamping jaws (3) are provided around the lower end of the fan blade (2), and the first clamping jaws (3) are connected to the lower end slider (18).

3. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized by: The second clamping jaws (4) are provided with four groups on one side of the first clamping jaw (3), and the centers of the four groups of second clamping jaws (4) coincide with the centers of the first clamping jaw (3). Each group of air pressure chambers (6) is provided with a pressure relief pipe (7), and the pressure relief speed of the pressure relief pipe (7) is less than the air intake speed of the air pressure chamber (6).

4. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized by: The rear end of each group of air pressure chambers (6) is connected to a hose (9) for conveying air pressure. The four groups of hoses (9) are connected to the four groups of connection ports of the four-way connecting valve (14) at the lower end. The four-way connecting valve (14) draws air through the air inlet pipe (13) to disperse the air to the hose (9), thereby entering the air pressure chamber (6).

5. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized in that: The rack (10) is fixedly connected to one side of the first clamp (3), and a gear (11) is fixedly connected to one side of the rack (10), wherein the gear (11) and the rack (10) are located in the same plane, and a connecting rod A (12) at the lower end of the gear (11) is connected to a valve inside the air intake pipe (13).

6. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized by: The cylinder (15) is fixedly connected to the lower end of the device and fixed to the lower end of the connecting rod B (17). The turntable (16) is movably connected to the center of the lower end of the device, and its axis coincides with the axis of the first clamping jaw (3).

7. The pneumatic four-jaw centering chuck manipulator fixture for positioning water tank fan blades according to claim 1 is characterized by: The connecting rods B (17) are movably connected in four groups around the turntable (16). The four groups of connecting rods B (17) will gradually retract through the sliding groove as the turntable (16) rotates. The slider (18) is fixedly connected to one end of the connecting rod B (17). The movement of the connecting rod B (17) drives the upper end first clamping claw (3) to move.

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