Anti-explosion multifunctional flexible pneumatic grabbing device

Abstract

The utility model discloses an anti-explosion multifunctional flexible pneumatic grabbing device which comprises a main connecting plate, a groove is formed in the main connecting plate, a positioning ring is installed in the groove, a connecting flange is installed on the positioning ring in a matched mode, a clamping air cylinder is installed on the lower end face of the main connecting plate, and a clamping groove is formed in the lower end face of the main connecting plate. A pair of auxiliary connecting plates is installed below the clamping air cylinder, a clamping arm is installed below each auxiliary connecting plate, a gas path pressure retaining valve matched with the clamping air cylinder is installed on the main connecting plate, a throttling valve is installed on one end face of the clamping air cylinder, and a gas path pressure retaining valve matched with the throttling valve is installed on the other end face of the clamping air cylinder. A connector is installed on the gas circuit pressure retaining valve, and an anti-explosion proximity switch is installed on one side of the auxiliary connecting plate. According to the anti-explosion multifunctional flexible pneumatic gripping device, the clamping force can be flexibly adjusted, man-machine engineering is met, the gripper body is safe, energy risks are avoided, the gripper body can be locked under the special sudden conditions, the whole mechanism is durable and not prone to damage, the gripper body is safe, risks are avoided, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece grasping and handling, in particular to an explosion-proof multi-functional flexible pneumatic grasping device. Background Technique

[0002] At present, there are usually three situations for workpiece handling:

[0003] 1. When a special situation occurs after the workpiece is grasped, the workpiece drops, there is no anti-falling structure, or in the event of a sudden situation in some grasping cylinders, such as gas cut-off and power-off, the cylinder discharges the internal gas, the clamping force decreases, the workpiece drops, and the extrusion of the contact block makes the contact point smooth, the friction force decreases, and the workpiece slides under the clamped condition.

[0004] The disadvantages of this method are: (1) There is no function of locking the cylinder in case of sudden situation to prevent the workpiece from dropping; (2) There is no secondary protection for the grasped object during movement.

[0005] 2. When the workpiece is grasped, the clamping force cannot be adjusted. When the grasped object is lifted, the air pressure cannot be accurately adjusted according to the signal to control the clamping force, resulting in damage to the workpiece when clamping a small workpiece with the force for clamping a large workpiece, or the air pressure cannot be adjusted manually to obtain an accurate clamping force.

[0006] The disadvantages of this method are: (1) It is not convenient to adjust the clamping force according to the signal to achieve flexible grasping; (2) Manually adjusting the pressure to control the clamping force is inaccurate.

[0007] 3. In case of special situations such as burning out or explosion of the grasping device body, some grasping uses a power source with special risks, and the workpiece cannot be protected from the factors of the grasping device body.

[0008] The disadvantage of this method is that energy risks are likely to damage the workpiece or the body. Content of the Utility Model

[0009] (I) Technical Problems to be Solved

[0010] Aiming at the deficiencies of the prior art, the utility model provides an explosion-proof multi-functional flexible pneumatic grasping device, which can flexibly adjust the clamping force, conforms to ergonomics, the gripper body is safe, avoids energy risks, can lock the gripper body in case of sudden special situations, and the whole mechanism is durable and not easy to be damaged, the gripper body is safe, avoids risks, and improves safety. It solves the technical problems of poor stability and safety of the grasping device in the prior art.

[0011] (II) Technical Solutions

[0012] To achieve the above object, the present utility model provides the following technical solutions: An explosion-proof multi-functional flexible pneumatic grasping device, including a main connecting plate, a groove is processed and provided inside the main connecting plate, a positioning ring is installed inside the groove, a connecting flange is installed and matched on the upper surface of the positioning ring, a clamping cylinder is installed on the lower end surface of the main connecting plate, a pair of auxiliary connecting plates are installed under the clamping cylinder, a clamping arm is installed under each auxiliary connecting plate, an air circuit pressure maintaining valve matched with the clamping cylinder is installed on the main connecting plate, a throttle valve is installed on one end surface of the clamping cylinder, a joint is installed on the air circuit pressure maintaining valve, and an explosion-proof proximity switch is installed on one side of the auxiliary connecting plate.

[0013] Further, it also includes a control cabinet arranged on the ground, and a control valve is installed inside the control cabinet.

[0014] Further, a contact block is installed inside the clamping arm, and the contact block is used to contact the surface of the workpiece to be clamped.

[0015] Further, the clamping arm is locked on the auxiliary connecting plate by screws and positioned by pins.

[0016] Further, after the lower flange surface of the connecting flange and the main mounting surface of the main connecting plate are fitted, they are locked by pins and screws.

[0017] Further, the upper flange surface of the connecting flange is connected to the corresponding carrier.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present utility model provides an explosion-proof multi-functional flexible pneumatic grasping device, which has the following beneficial effects:

[0020] This explosion-proof multi-functional flexible pneumatic grasping device can flexibly adjust the clamping force, conforms to ergonomics, the gripper body is safe, avoids energy risks, the gripper body can be locked in case of sudden special situations, and the whole mechanism is durable and not easy to be damaged. The gripper body is safe, avoids risks, and improves safety. Description of the drawings

[0021] Figure 1 It is a three-dimensional view of an explosion-proof multi-functional flexible pneumatic grasping device of the present utility model;

[0022] Figure 2 It is a front view of an explosion-proof multi-functional flexible pneumatic grasping device of the present utility model;

[0023] Figure 3 It is a left-sectional view of an explosion-proof multi-functional flexible pneumatic grasping device of the present utility model;

[0024] In the figure: 1. Contact block; 2. Auxiliary connecting plate; 3. Clamping cylinder; 4. Clamping arm; 5. Main connecting plate; 6. Positioning ring; 7. Connecting flange; 8. Air circuit pressure maintaining valve; 9. Throttle valve; 10. Connector; 11. Explosion-proof proximity switch. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-3 , an explosion-proof multi-functional flexible pneumatic grasping device, including a main connecting plate 5. A groove is processed and arranged inside the main connecting plate 5. A positioning ring 6 is installed in the groove. A connecting flange 7 is installed and matched on the upper surface of the positioning ring 6. After the lower flange surface of the connecting flange 7 is attached to the main installation surface of the main connecting plate 5, it is locked with pins and screws. The upper flange surface of the connecting flange 7 is connected to the corresponding carrier. A clamping cylinder 3 is installed on the lower end surface of the main connecting plate 5. A pair of auxiliary connecting plates 2 are installed under the clamping cylinder 3. A clamping arm 4 is installed under each auxiliary connecting plate 2. The clamping arm 4 is locked to the auxiliary connecting plate 2 with screws and positioned by pins. A contact block 1 is installed inside the clamping arm 4. The contact block 1 is used to contact the surface of the workpiece to be clamped. An air circuit pressure maintaining valve 8 matching the clamping cylinder 3 is installed on the main connecting plate 5. A throttle valve 9 is installed on one end surface of the clamping cylinder 3. A connector 10 is installed on the air circuit pressure maintaining valve 8. An explosion-proof proximity switch 11 is installed on one side of the auxiliary connecting plate 2. The explosion-proof multi-functional flexible pneumatic grasping device further includes a control cabinet arranged on the ground, and a control valve is installed in the control cabinet.

[0027] The working principle of the above embodiment is as follows:

[0028] During use, after the carrier is installed on the upper flange surface of the connecting flange 7 of the grasping device, the carrier drives the grasping device to reach the set position where grasping is required. The air circuit is ventilated, the air circuit pressure maintaining valve 8 intakes air, the internal self-locking is opened, and the gas reaches the clamping cylinder 3 through the air circuit pressure maintaining valve 8. The clamping cylinder 3 is opened, and the signal of the proximity switch 11 changes. The carrier drives the grasping device to move down to the set height. When the air circuit is ventilated, the pressure regulating valve 12 gives an analog signal to change the air pressure, which can be adjusted according to the different clamping forces of different workpieces. The clamping cylinder 3 clamps, the clamping arm 4 acts, the contact block 1 contacts the workpiece, and the signal of the proximity switch 11 for in-place detection changes, that is, the workpiece is clamped in place, and the carrier makes a transfer.

[0029] In summary, the explosion-proof multi-functional flexible pneumatic grasping device can flexibly adjust the clamping force, conform to ergonomics, the gripper body is safe, avoiding energy risks. In case of sudden special situations, the gripper body can be locked, and the whole mechanism is durable and not easily damaged. The gripper body is safe, avoiding risks and improving safety.

[0030] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof multifunctional flexible pneumatic grasping device, comprising a main connecting plate (5), characterized in that: The main connecting plate (5) is provided with a groove through machining inside, a positioning ring (6) is installed in the groove, a connecting flange (7) is installed on the top of the positioning ring (6), a clamping cylinder (3) is installed on the lower end surface of the main connecting plate (5), a pair of auxiliary connecting plates (2) are installed below the clamping cylinder (3), a clamping arm (4) is installed below each of the auxiliary connecting plates (2), an air circuit pressure-maintaining valve (8) matching the clamping cylinder (3) is installed on the main connecting plate (5), a throttle valve (9) is installed on one end surface of the clamping cylinder (3), a joint (10) is installed on the air circuit pressure-maintaining valve (8), and an explosion-proof proximity switch (11) is installed on one side of the auxiliary connecting plate (2).

2. The explosion-proof multifunctional flexible pneumatic grabbing device according to claim 1, characterized in that: It also includes a control cabinet arranged on the ground, in which a control valve is installed.

3. The explosion-proof multifunctional flexible pneumatic grabbing device according to claim 1, characterized in that: A contact block (1) is installed inside the clamping arm (4), and the contact block (1) is used to contact the surface of the clamped workpiece.

4. The explosion-proof multifunctional flexible pneumatic grabbing device according to claim 1, characterized in that: The clamp arm (4) is fastened to the auxiliary connecting plate (2) by means of screws and is positioned by means of pins.

5. The explosion-proof multifunctional flexible pneumatic grabbing device according to claim 1, characterized in that: The lower flange surface of the connecting flange (7) and the main mounting surface of the main connecting plate (5) are fitted together and then locked with pins and screws.

6. The explosion-proof multifunctional flexible pneumatic grabbing device according to claim 1, characterized in that: The upper flange surface of the connecting flange (7) is connected to a corresponding carrier.

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