Dual-purpose pneumatic clamping jaw
By designing a dual-purpose pneumatic jaw, combining the hand claw assembly and suction cup assembly, the existing jaw clamping force is insufficient and manual operation of loading and unloading, achieving high load and automatic loading and unloading, and improving processing efficiency and safety.
Patent Information
- Application Number
- CN202421733647.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing pneumatic jaws have insufficient clamping force and stability, and cannot effectively lock the clamping state, resulting in unstable clamping and manual loading and unloading, which increases labor intensity and danger.
A dual-purpose pneumatic jaw is designed, combining hand claw assembly and suction cup assembly, which achieves clamping and suction functions through pneumatic centering cylinders and three-axis cylinders, is compatible with workpieces of multiple inner diameters, and improves stability and control through magnetic switches and oil-free bushings.
It realizes high load capacity and high strength clamping, can automatically load and unload, reduce manual operations, reduce labor intensity and danger, and improve processing efficiency.
Smart Images
Figure CN222791348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machining loading and unloading, in particular to a dual-purpose pneumatic clamp. Background Art
[0002] In the process of automated assembly, pneumatic clamp structures are widely used for clamping and transferring various workpieces. The clamp structures of the prior art use the lever principle for clamping. The clamping force of the pneumatic clamp is consistent from the loosening to the clamping state, and the clamp cannot be locked in the final clamping state. The clamping force is limited. When subjected to external force, the clamp is easy to loosen, resulting in unstable clamping. The pneumatic clamp cannot meet the requirements in terms of load, rigidity and strength, and the gripper can only clamp a single workpiece. Two different grippers need to be set at the same position to play the role of sending the blank and taking the processed workpiece. At the same time, some parts on the existing processing line still need to be manually taken to the machine tool to complete loading and unloading. After unloading, each layer of parts needs to be manually taken and placed on each layer. This leads to excessive labor intensity for workers, which is easy to reduce efficiency after fatigue and increases the danger. Summary of the invention
[0003] In order to overcome the above-mentioned deficiencies, the purpose of the utility model is to provide a dual-purpose pneumatic gripper that can be used for both clamping workpieces and sucking partitions, realizing dual uses of one gripper and being compatible with automatic pickup of workpieces with a variety of different inner diameters. The gripper has a large load capacity and high strength, realizing unmanned loading and unloading, and at the same time solving the problems of danger, excessive labor intensity and low efficiency brought about by manual loading and unloading.
[0004] The technical solution of the utility model is a dual-purpose pneumatic clamp, comprising a main frame, a suction cup assembly and a gripper assembly mounted on the main frame, the gripper assembly comprising a pneumatic centering cylinder and a gripper clamp connected to the pneumatic centering cylinder; the suction cup assembly comprising a suction cup mounting plate and a guide sleeve plate connected to the suction cup mounting plate; a three-axis cylinder and a guide rod are arranged on the guide sleeve plate; the suction cup mounting plate is connected to the guide rod, and a compression spring is arranged on the guide rod between the suction cup mounting plate and the guide sleeve plate; a sponge suction cup is arranged on the suction cup mounting plate.
[0005] Furthermore, in order to improve stability, a support plate is provided on one side of the main frame, and the three-axis cylinder is installed on the support plate.
[0006] Furthermore, a wire pipe seat is also provided at the upper end of the main frame.
[0007] Furthermore, in order to enhance and control the movement of the cylinder, a magnetic switch corresponding to the three-axis cylinder is provided on the wire tube seat.
[0008] Furthermore, in order to reduce friction, an oil-free bushing is provided between the guide rod and the guide sleeve plate.
[0009] Furthermore, the pneumatic centering cylinder is connected to the main frame via a cylinder flange, and a throttle valve connected to the pneumatic centering cylinder is also provided on the cylinder flange; a slide groove is provided on the pneumatic centering cylinder, and a slider is provided on the claw clamp, and the slider is installed in the slide groove.
[0010] Furthermore, the suction cup mounting plate is also provided with an air inlet elbow.
[0011] The beneficial effect of the utility model is that a dual-purpose pneumatic clamp is mainly composed of a main frame, a suction cup assembly installed on the main frame and a hand gripper assembly, the hand gripper assembly includes a pneumatic centering cylinder, and a hand gripper clamp connected to the pneumatic centering cylinder; the suction cup assembly is composed of a suction cup mounting plate, a guide sleeve plate connected to the suction cup mounting plate, a three-axis cylinder and a guide rod are arranged on the guide sleeve plate, the three-axis cylinder controls the guide sleeve plate to move up and down, thereby driving the suction cup assembly to move up and down, the suction cup mounting plate is connected to the guide rod, and a compression spring is arranged on the guide rod between the suction cup mounting plate and the guide sleeve plate, and the spring will keep To protect the suction cup from overpressure, the guide rod plays a centering role. A sponge suction cup is provided on the suction cup mounting plate, a slide groove is provided on the pneumatic centering cylinder, and a slider is provided on the gripper clamp. The slider is installed in the slide groove and can move in the slide groove. A dual-purpose pneumatic gripper can be used for clamping workpieces and sucking partitions. It realizes dual use of one claw and is compatible with automatic removal of workpieces with various inner diameters. The gripper has a large load capacity and high strength, realizing unmanned loading and unloading, and at the same time solves the problems of danger, excessive labor intensity and low efficiency brought about by manual loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and accompanying drawings.
[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of a dual-purpose pneumatic clamp.
[0014] Figure numerals: main frame 1, suction cup assembly 2, gripper assembly 3, pneumatic centering cylinder 31, gripper clamp 32, suction cup mounting plate 21, guide sleeve plate 22, three-axis cylinder 23, guide rod 24, compression spring 25, sponge suction cup 26, bracket plate 11, wire pipe seat 12, magnetic switch 121, oil-free bushing 27, cylinder flange 4, throttle valve 41, slide groove 311, slider 321, air intake elbow 5. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0017] The following is a further description of the dual-purpose pneumatic clamp described in the utility model with reference to the accompanying drawings:
[0018] like Figure 1 The dual-purpose pneumatic gripper shown in the figure comprises a main frame 1, a suction cup assembly 2 and a gripper assembly 3 mounted on the main frame 1, wherein the gripper assembly 3 comprises a pneumatic centering cylinder 31 and a gripper clamp 32 connected to the pneumatic centering cylinder 31; the suction cup assembly 2 comprises a suction cup mounting plate 21 and a guide sleeve plate 22 connected to the suction cup mounting plate 21, an air inlet elbow 5 is provided on the suction cup mounting plate 21, and an external device is connected through the air inlet elbow to realize negative pressure suction of the workpiece; the guide sleeve plate 22 is provided with a three-axis cylinder 23 and a guide rod 24, and the guide rod 2 An oil-free bushing 27 is provided between the guide sleeve plate 22 and the suction cup mounting plate 21 to reduce friction; the suction cup mounting plate 21 is connected to the guide rod 24, and a compression spring 25 is provided on the guide rod 24 between the suction cup mounting plate 21 and the guide sleeve plate 22; a sponge suction cup 26 is provided on the suction cup mounting plate 21; a bracket plate 11 for mounting a three-axis cylinder is provided on one side of the main frame 1, and a wire pipe seat 12 is also provided on the upper end of the main frame 1, and a magnetic switch 121 corresponding to the three-axis cylinder 23 is provided on the wire pipe seat 12, and the lifting height of the three-axis cylinder can be controlled by the magnetic switch.
[0019] In this embodiment, the pneumatic centering cylinder 31 is connected to the main frame 1 via a cylinder flange 4, and the cylinder flange 4 is also provided with a throttle valve 41 connected to the pneumatic centering cylinder 31; the pneumatic centering cylinder 31 is provided with a slide groove 311, and the claw clamp 32 is provided with a slider 321, and the slider 321 is installed in the slide groove 311.
[0020] The pneumatic gripper structure is composed of a main frame 11 and a suction cup assembly 2 and a hand gripper assembly 3 installed on the main frame, wherein the hand gripper assembly includes a pneumatic centering cylinder 31 and a hand gripper clamp 32 connected to the pneumatic centering cylinder 31, which is used for direct contact with the workpiece surface when clamping the workpiece. One end of the guide rod is installed on the guide sleeve plate and the other end is connected to the suction cup mounting plate; a sponge suction cup is installed on the suction cup mounting plate, and the sponge suction cup is used to absorb the partition (generally a paper partition or a partition with many air holes). The oil-free bushing is located between the guide sleeve plate and the guide rod, and is installed in conjunction with the guide rod for guidance; three The three-axis cylinder is fixed on the bracket through the bracket plate and one end is connected to the suction cup mounting plate. When the three-axis cylinder moves, the sponge suction cup can be extended and retracted. The pneumatic centering cylinder is connected to the bracket and provides clamping power for the claw clamp to clamp the workpiece. The magnetic switch is located above the three-axis cylinder to read and control the movement of the cylinder. The sponge suction cup air inlet plate is configured to adjust the speed of the pneumatic centering cylinder through the air inlet elbow and the throttle valve. The compression spring is installed on the guide rod between the guide sleeve plate and the suction cup mounting plate to avoid overpressure of the sponge suction cup when taking the partition. The main frame can be connected to the robot mechanism.
[0021] Working method:
[0022] The claw clamps the workpiece: the pneumatic centering cylinder drives the claw clamp to open and clamp the workpiece surface to clamp the workpiece, and when it retracts, it releases the workpiece;
[0023] Sucking the partition: The three-axis cylinder drives the sponge suction cup to extend downward to contact the partition workpiece. The compression spring is compressed to protect the suction cup from overpressure, and then the air intake elbow works to suck up the partition.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A dual-purpose pneumatic gripper, comprising a main frame, a suction cup assembly mounted on the main frame and a gripper assembly, characterized in that: The gripper assembly includes a pneumatic centering cylinder and a gripper clamp connected to the pneumatic centering cylinder; the suction cup assembly includes a suction cup mounting plate and a guide sleeve plate connected to the suction cup mounting plate; the guide sleeve plate is provided with a three-axis cylinder and a guide rod; the suction cup mounting plate is connected to the guide rod, and a compression spring is provided on the guide rod between the suction cup mounting plate and the guide sleeve plate; a sponge suction cup is provided on the suction cup mounting plate.
2. A dual-purpose pneumatic gripper according to claim 1, characterized in that: A support plate is provided on one side of the main frame, and the three-axis cylinder is installed on the support plate.
3. A dual-purpose pneumatic gripper according to claim 1, characterized in that: A wire pipe seat is also provided at the upper end of the main frame.
4. A dual-purpose pneumatic gripper according to claim 3, characterized in that: The wire pipe seat is provided with a magnetic switch corresponding to the three-axis cylinder.
5. The dual-purpose pneumatic gripper according to claim 1, characterized in that: An oil-free bushing is arranged between the guide rod and the guide sleeve plate.
6. A dual-purpose pneumatic gripper according to claim 1, characterized in that: The pneumatic centering cylinder is connected to the main frame via a cylinder flange, and a throttle valve connected to the pneumatic centering cylinder is also provided on the cylinder flange; a slide groove is provided on the pneumatic centering cylinder, and a slider is provided on the hand clamp, and the slider is installed in the slide groove.
7. The dual-purpose pneumatic gripper according to claim 1, characterized in that: The suction cup mounting plate is also provided with an air inlet elbow.