Omnibearing precision rotary pneumatic clamping jaw

Abstract

The utility model provides an omnibearing precise rotary pneumatic clamping jaw, which comprises a motor, a mounting seat, a clamping jaw air cylinder, a bearing, a transmission part and a coupler, one end of the mounting seat is fixed on the motor, so that an output shaft of the motor is positioned on the central axis of the mounting seat, and the clamping jaw air cylinder is rotatably mounted in the mounting seat through the bearing; one end of the transmission part is fixed to the clamping jaw cylinder, and the other end of the transmission part is connected with an output shaft of the motor through a coupler. The omnibearing precise rotary pneumatic clamping jaw has the advantages of being high in rotary positioning precision, compact and stable in structure, high in flexibility and applicability, easy to maintain and the like, and can meet the requirements for high-precision and high-efficiency clamping jaw devices in automatic assembly lines and other industrial applications.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic gripper technology, and in particular to an omnidirectional precision rotating pneumatic gripper. Background Technology

[0002] The omnidirectional precision rotary pneumatic gripper is a pneumatic actuator widely used in medical automation, 3C electronics, new energy, and automated machining and assembly applications. It plays a crucial role, especially in scenarios requiring precise gripping and handling of workpieces.

[0003] As a key component in automated assembly lines and other industrial applications, omnidirectional precision rotary pneumatic grippers must meet a series of stringent requirements to ensure their performance. These requirements include, but are not limited to, high precision, i.e., high repeatability to ensure that workpieces can be accurately gripped and placed in predetermined positions; precise force control, i.e., providing sufficient clamping force to firmly grip objects of different sizes and shapes while avoiding damage to fragile objects; compact size to prevent installation problems due to insufficient assembly space; flexibility, i.e., the gripper's rotation function can adapt to gripping tasks in different directions; durability, i.e., the gripper should be able to withstand long-term use and high-frequency operation without performance degradation or damage; and stability, i.e., providing stable gripping during operation, keeping objects fixed even under vibration or shock loads.

[0004] However, existing omnidirectional precision rotary pneumatic grippers generally have some shortcomings. Specifically, these grippers are often large, heavy, and complex in structure. To increase their strength, they are typically manufactured using aluminum alloys and steel components. While these grippers offer many advantages and flexibility in automated assembly, they still have some potential drawbacks and limitations. For example, they cannot generate greater force output in relatively small spaces, limiting their application in confined spaces. Furthermore, existing grippers struggle to reduce weight while simultaneously lowering the load on the load-bearing fixture, and maintaining both performance and service life.

[0005] Therefore, in order to address the aforementioned shortcomings of existing omnidirectional precision rotary pneumatic grippers, it is necessary to make improvements and innovations to provide more efficient and high-performance omnidirectional precision rotary pneumatic grippers. Utility Model Content

[0006] In view of the above, this utility model provides an all-around precision rotary pneumatic gripper, which has the advantages of high-precision rotary positioning, compact and stable structure, high flexibility and applicability, and easy maintenance and upkeep, and can meet the needs of automated assembly lines and other industrial applications for high-precision and high-efficiency gripper devices.

[0007] The technical solution adopted in this utility model is as follows:

[0008] This utility model provides an omnidirectional precision rotary pneumatic gripper, including a motor, a mounting base, a gripper cylinder, a bearing, a transmission component, and a coupling. One end of the mounting base is fixed to the motor, so that the output shaft of the motor is located on the central axis of the mounting base. The gripper cylinder is rotatably mounted in the mounting base through the bearing. One end of the transmission component is fixed to the gripper cylinder, and the other end is connected to the output shaft of the motor through the coupling. The motor drives the gripper cylinder to rotate relative to the mounting base to a specified angle.

[0009] Furthermore, the mounting base has a stepped hole formed inside to accommodate the gripper cylinder and bearing.

[0010] Furthermore, the mounting base has mounting openings on opposite side walls, with the two mounting openings located on opposite sides of the outer periphery of the coupling.

[0011] Furthermore, the gripper cylinder includes a cylinder barrel, a piston, a piston rod, levers, and fingers. A bearing is installed between the cylinder barrel and the mounting base. The bottom end of the cylinder barrel is fixedly connected to the transmission component. The piston is reciprocally slidably installed inside the cylinder barrel. One end of the piston rod is connected to the piston, and the other end is connected to one end of two levers respectively. The middle of the two levers is hinged to the cylinder barrel, and the other end of the two levers is connected to two fingers respectively.

[0012] Furthermore, the lever is an L-shaped rod, with the corner of the L-shaped rod hinged to the cylinder.

[0013] Furthermore, the gripper cylinder also includes a hinge seat fixed to the end face of the cylinder barrel, and the two levers are hinged to the cylinder barrel through the hinge seat at their middle parts.

[0014] Furthermore, the hinge seat is provided with a guide groove that slides and engages with the finger.

[0015] Furthermore, the hinge seat has pre-drilled pin holes and threaded holes to accommodate grippers under various working conditions.

[0016] Furthermore, the transmission component includes a connecting plate fixedly connected to the bottom end of the cylinder and a transmission shaft vertically fixed on the connecting plate. The transmission shaft is connected to the output shaft of the motor via a coupling.

[0017] Furthermore, the mounting base and piston are made of high-strength, lightweight plastic.

[0018] The omnidirectional precision rotary pneumatic gripper provided by this utility model has the following beneficial effects:

[0019] I. High-precision rotary positioning: High-precision rotary positioning of the gripper is achieved by rotating the gripper cylinder relative to the mounting base via a motor-driven mechanism, combined with precise transmission through the drive components and coupling. This design allows the gripper to accurately pick up and place workpieces in multiple directions, meeting the high-precision operation requirements of automated assembly lines and other industrial applications.

[0020] II. Compact and Stable Structure: One end of the mounting base is fixed to the motor, and the motor's output shaft is located on the central axis of the mounting base. This layout makes the entire gripper device compact and space-saving. Simultaneously, the rotatable mounting of the gripper cylinder via bearings ensures smooth and stable rotational movement, thus extending the gripper's service life.

[0021] III. Flexibility and Applicability: The gripper cylinder of this utility model is connected to the motor through a transmission component and a coupling. This design allows the gripper cylinder to be rotated and adjusted according to different work requirements, thereby enabling the gripping of workpieces of different shapes and sizes. Furthermore, this gripper device is also suitable for various automated assembly applications, improving production efficiency and flexibility.

[0022] IV. Easy to maintain and care for: Due to the reasonable structural design of the gripper device of this utility model and the tight and stable connection between the components, it is easy to maintain and care for during use.

[0023] In summary, the omnidirectional precision rotary pneumatic gripper provided by this utility model has the advantages of high-precision rotary positioning, compact and stable structure, high flexibility and applicability, and easy maintenance and upkeep, which can meet the needs of automated assembly lines and other industrial applications for high-precision and high-efficiency gripper devices. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but should not be construed as limiting the present invention. In the drawings:

[0025] Figure 1 Assembly diagram of the omnidirectional precision rotary pneumatic gripper of this utility model;

[0026] Figure 2 : An exploded view of the omnidirectional precision rotary pneumatic gripper of this utility model;

[0027] Figure 3 : A cross-sectional view of the omnidirectional precision rotating pneumatic gripper of this utility model.

[0028] Reference numerals in the attached diagram: 1. Motor; 2. Mounting base; 3. Gripper cylinder; 4. Bearing; 5. Transmission component; 6. Coupling; 20. Stepped hole; 21. Mounting port; 22. Air inlet; 31. Cylinder; 32. Piston; 33. Piston rod; 34. Lever; 35. Finger; 36. Hinge seat; 51. Connecting plate; 52. Drive shaft. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0030] like Figures 1 to 3 As shown, this utility model provides an omnidirectional precision rotary pneumatic gripper, including a motor 1, a mounting base 2, a gripper cylinder 3, a bearing 4, a transmission component 5, and a coupling 6. One end of the mounting base 2 is fixed to the motor 1, such that the output shaft of the motor 1 is located on the central axis of the mounting base 2. The gripper cylinder 3 is rotatably mounted in the mounting base 2 via the bearing 4. One end of the transmission component 5 is fixed to the gripper cylinder 3, and the other end is connected to the output shaft of the motor 1 via the coupling 6. The motor 1 drives the gripper cylinder 3 to rotate relative to the mounting base 2 to a specified angle.

[0031] The omnidirectional precision rotary pneumatic gripper provided by this utility model has the following beneficial effects:

[0032] I. High-precision rotary positioning: High-precision rotary positioning of the gripper is achieved by rotating the gripper cylinder relative to the mounting base via a motor-driven mechanism, combined with precise transmission through the drive components and coupling. This design allows the gripper to accurately pick up and place workpieces in multiple directions, meeting the high-precision operation requirements of automated assembly lines and other industrial applications.

[0033] II. Compact and Stable Structure: One end of the mounting base is fixed to the motor, and the motor's output shaft is located on the central axis of the mounting base. This layout makes the entire gripper device compact and space-saving. Simultaneously, the rotatable mounting of the gripper cylinder via bearings ensures smooth and stable rotational movement, thus extending the gripper's service life.

[0034] III. Flexibility and Applicability: The gripper cylinder of this utility model is connected to the motor through a transmission component and a coupling. This design allows the gripper cylinder to be rotated and adjusted according to different work requirements, thereby enabling the gripping of workpieces of different shapes and sizes. Furthermore, this gripper device is also suitable for various automated assembly applications, improving production efficiency and flexibility.

[0035] IV. Easy to maintain and care for: Due to the reasonable structural design of the gripper device of this utility model and the tight and stable connection between the components, it is easy to maintain and care for during use.

[0036] In summary, the omnidirectional precision rotary pneumatic gripper provided by this utility model has the advantages of high-precision rotary positioning, compact and stable structure, high flexibility and applicability, and easy maintenance and upkeep, which can meet the needs of automated assembly lines and other industrial applications for high-precision and high-efficiency gripper devices.

[0037] In this embodiment, the mounting base 2 has a stepped hole 20 formed inside to accommodate the gripper cylinder 3 and the bearing 4. The opposite sidewalls of the mounting base 2 are each provided with a mounting opening 21, located on opposite sides of the outer periphery of the coupling 6. The mounting base 2 has two air inlets 22 for connecting the gripper cylinder 3 to allow air intake and exhaust. The stepped hole 20 design allows the gripper cylinder 3 and bearing 4 to be compactly installed within the mounting base 2, effectively utilizing the internal space of the mounting base 2 and reducing the overall volume and space occupied by the gripper. This compact structural design not only improves the integration of the gripper but also facilitates installation and deployment in limited spaces. The shape and dimensions of the stepped hole 20 are precisely calculated to provide stable support and positioning for the gripper cylinder 3 and bearing 4. This design enhances the stability of the gripper during rotation and gripping, ensuring smooth movement of the gripper cylinder 3 and the durability of the bearing 4. Mounting ports 21 are provided on opposite sidewalls of mounting base 2, with the two mounting ports 21 located on opposite sides of the outer periphery of coupling 6. This design facilitates the installation, adjustment, and maintenance of coupling 6, gripper cylinder 3, and bearing 4. Workers can easily access these critical components through the mounting ports 21, improving the maintainability and operability of the gripper.

[0038] In this embodiment, the gripper cylinder 3 includes a cylinder 31, a piston 32, a piston rod 33, a lever 34, and fingers 35. A bearing 4 is installed between the cylinder 31 and the mounting base 2, and the bottom end of the cylinder 31 is fixedly connected to the transmission component 5. The piston 32 is reciprocally slidably installed inside the cylinder 31. One end of the piston rod 33 is connected to the piston 32, and the other end is connected to one end of each of the two levers 34. The two levers 34 are hinged to the cylinder 31 at their midpoints, and the other ends of the two levers 34 are connected to the two fingers 35 respectively. The pressure generated by the gas entering the cylinder 31 pushes the piston 32 to slide, and then the piston rod 33 and levers 34 rotate, thereby releasing or clamping the two fingers 35. The levers 34 are L-shaped rods, and the corners of the L-shaped rods are hinged to the cylinder 31. The gripper cylinder 3 also includes a hinge seat 36 fixed to the end face of the cylinder 31, and the midpoints of the two levers 34 are hinged to the cylinder 31 via the hinge seat 36. The hinge base 36 has a guide groove that slides with the finger 35. The hinge base 36 has pre-drilled pin holes and threaded holes to accommodate grippers in various working conditions and to enable multi-scenario and multi-purpose applications.

[0039] Gas pressure drives piston 32 to slide reciprocally within cylinder 31, which in turn drives lever 34 to rotate via piston rod 33, thus enabling the two fingers 35 to open or close. This design is not only simple in structure but also highly efficient, responding quickly to gripping and releasing commands and improving work efficiency. Lever 34 adopts an L-shaped design, with its corner hinged to cylinder 31. This structure allows lever 34 to maintain a stable gripping force during rotation, avoiding gripping failure or workpiece damage due to lever deformation or instability. The gripper cylinder 3 also includes a hinge seat 36 fixed to the end face of cylinder 31, through which the two levers 34 are hinged to cylinder 31. Guide grooves on the hinge seat 36, which slide and engage with the fingers 35, can precisely guide and position the movement of the fingers 35, ensuring the accuracy and stability of the gripper cylinder 3 when gripping workpieces. The connections between the components are tight and stable. In particular, the hinge design between the lever 34 and the cylinder 31, and the fit design between the finger 35 and the guide groove, have been carefully calculated and tested to ensure that the gripper cylinder 3 can maintain excellent durability and reliability during long-term, high-frequency use.

[0040] In this embodiment, the transmission component 5 includes a connecting plate 51 fixedly connected to the bottom end of the cylinder 31 and a transmission shaft 52 vertically fixed to the connecting plate 51. The transmission shaft 52 is connected to the output shaft of the motor 1 via a coupling 6. This design ensures a tight and stable connection between the transmission component 5 and the cylinder 31. Simultaneously, the connection between the transmission shaft 52 and the output shaft of the motor 1 via the coupling 6 achieves efficient power transmission. This compact and efficient transmission structure not only improves the overall performance of the gripper but also reduces energy loss and increases working efficiency.

[0041] In this embodiment, the mounting base 2 and piston 32 are made of high-strength, lightweight plastic material, which balances performance and service life while reducing weight by 1 / 3 compared to aluminum alloy and 2 / 3 compared to steel.

[0042] In this embodiment, motor 1 is a high-precision closed-loop motor with integrated drive and control. It utilizes a special algorithm based on motor motion pulse feedback and motor current magnitude to achieve precise control of position, speed, and output. This enables functions such as zero-return without sensor collision, gripping position detection, and drop detection.

[0043] Any combination of different embodiments of this utility model, provided it does not violate the inventive concept of this utility model, shall be considered as the disclosure of this utility model; any simple modifications to the technical solution and any combination of different embodiments within the scope of the inventive concept of this utility model, without violating the inventive concept of this utility model, shall be within the protection scope of this utility model.

Claims

1. A precision rotary pneumatic gripper with omnidirectional rotation, characterized in that, The device includes a motor (1), a mounting base (2), a gripper cylinder (3), a bearing (4), a transmission component (5), and a coupling (6). One end of the mounting base (2) is fixed to the motor (1), so that the output shaft of the motor (1) is located on the central axis of the mounting base (2). The gripper cylinder (3) is rotatably mounted in the mounting base (2) through the bearing (4). One end of the transmission component (5) is fixed to the gripper cylinder (3), and the other end is connected to the output shaft of the motor (1) through the coupling (6). The motor (1) drives the gripper cylinder (3) to rotate relative to the mounting base (2) to a specified angle.

2. The omnidirectional precision rotary pneumatic gripper according to claim 1, characterized in that: The mounting base (2) has a stepped hole (20) formed inside to accommodate the gripper cylinder (3) and the bearing (4).

3. The omnidirectional precision rotary pneumatic gripper according to claim 1, characterized in that: The mounting base (2) has mounting openings (21) on opposite side walls, and the two mounting openings (21) are respectively on opposite sides of the outer periphery of the coupling (6).

4. The omnidirectional precision rotary pneumatic gripper according to claim 1, characterized in that: The gripper cylinder (3) includes a cylinder (31), a piston (32), a piston rod (33), a lever (34), and fingers (35). A bearing (4) is installed between the cylinder (31) and the mounting base (2). The bottom end of the cylinder (31) is fixedly connected to the transmission component (5). The piston (32) is reciprocally slidably installed inside the cylinder (31). One end of the piston rod (33) is connected to the piston (32), and the other end is connected to one end of two levers (34). The middle of the two levers (34) is hinged to the cylinder (31), and the other end of the two levers (34) is connected to two fingers (35).

5. The omnidirectional precision rotary pneumatic gripper according to claim 4, characterized in that: The lever (34) is an L-shaped rod, and the corner of the L-shaped rod is hinged to the cylinder (31).

6. The omnidirectional precision rotary pneumatic gripper according to claim 4, characterized in that: The gripper cylinder (3) also includes a hinge seat (36) fixed to the end face of the cylinder (31), and the two levers (34) are hinged to the cylinder (31) through the hinge seat (36).

7. The omnidirectional precision rotary pneumatic gripper according to claim 6, characterized in that: The hinge seat (36) is provided with a guide groove that slides with the finger (35).

8. The omnidirectional precision rotary pneumatic gripper according to claim 6, characterized in that: The hinge seat (36) has pre-drilled pin holes and threaded holes to accommodate grippers in various working conditions.

9. The omnidirectional precision rotary pneumatic gripper according to claim 4, characterized in that: The transmission component (5) includes a connecting plate (51) fixedly connected to the bottom end of the cylinder (31) and a transmission shaft (52) vertically fixed on the connecting plate (51). The transmission shaft (52) is connected to the output shaft of the motor (1) through a coupling (6).

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