Stable pneumatic clamping jaw

Abstract

The utility model discloses a stable type pneumatic clamping jaw which comprises a fixed seat and a connecting end, one end of the fixed seat is movably connected with the connecting end, a movable cavity is formed in the fixed seat, a sliding cavity is formed in the connecting end, a clamping jaw assembly is movably arranged in the sliding cavity, and the clamping jaw assembly is movably connected with the movable cavity. The clamping jaw assembly comprises a piston rod, a clamping jaw, a first sealing ring and a second sealing ring, the piston rod moves in the sliding cavity, the surface of the piston rod is sequentially sleeved with the first sealing ring and the second sealing ring from left to right, and the right end of the piston rod is rotationally connected with the clamping jaw. According to the structural design, the first air inlet and the second air inlet are formed, air enters the first air inlet and the second air inlet respectively, so that the piston rod is controlled to slide in the sliding cavity, and the surface of the outer wall of the clamping jaw makes contact with the surface of the driving position through sliding of the piston rod to achieve work of the clamping jaw. Therefore, a traditional design mode is replaced, and the practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic clamping jaw technical field, concretely is a stable type pneumatic clamping jaw. BACKGROUND

[0002] The kind of clamping jaw, according to driving mode, can be divided into hydraulic type, pneumatic type, electric type, mechanical type clamping jaw, according to applicable scope, can be divided into special purpose pneumatic clamping jaw and general purpose pneumatic clamping jaw two, and the pneumatic clamping jaw is mainly composed of hand and movement mechanism, and the pneumatic clamping jaw is the matched part of mechanical hand clamping type hand, which utilizes compressed air as power to clamp or grab workpiece, and can be used to grab or assemble small parts, and in the automation process of mechanical hand, the pneumatic clamping jaw is widely used in the clamping and transfer of various workpieces.

[0003] However, the pneumatic clamping jaw in the prior art adopts the spring reset clamping jaw mode, so under the repeated use of a long time, the elasticity of the spring is prone to failure, so that the reset response of the clamping jaw will be slow, thereby affecting the overall usability of the pneumatic clamping jaw and reducing the service life. SUMMARY

[0004] The utility model discloses a stable type pneumatic clamping jaw to solve the above-mentioned prior art in the background art of the pneumatic clamping jaw due to the spring reset clamping jaw mode, so under the repeated use of a long time, the elasticity of the spring is prone to failure, so that the reset response of the clamping jaw will be slow, thereby affecting the overall usability of the pneumatic clamping jaw and reducing the service life.

[0005] To achieve the above object, the utility model provides the following technical scheme: a stable type pneumatic clamping jaw, including fixed base and connecting end, the fixed base one end swing joint has connecting end, the fixed base is opened in the movable cavity, the connecting end is opened in the sliding cavity, the sliding cavity is movable and has clamping jaw assembly, the clamping jaw assembly includes piston rod, clamping jaw, first sealing ring and second sealing ring, the piston rod is movable in the sliding cavity, the piston rod surface is successively sleeved with first sealing ring and second sealing ring from left to right, the right -hand end of piston rod is rotatably connected with clamping jaw.

[0006] Preferably, the left end of the connecting end is fixedly connected with a connecting rod, the connecting rod is movable in the movable cavity, the surface of the connecting rod is successively sleeved with a third sealing ring and a fourth sealing ring from left to right, and the third sealing ring and the fourth sealing ring are clamped in the fixed base.

[0007] Preferably, a first chamber is formed between the first sealing ring and the second sealing ring, and a second chamber is formed between the third sealing ring and the fourth sealing ring.

[0008] Preferably, the fixing base surface is respectively provided with a first air inlet and a second air inlet, the connecting rod is provided with a first connecting channel and a second connecting channel, one end of the first connecting channel is communicated with the second air inlet, the other end of the first connecting channel is communicated with the first chamber, one end of the second connecting channel is communicated with the first air inlet, and the other end of the second connecting channel is communicated with the sliding cavity.

[0009] Preferably, a plurality of driving positions are uniformly and equidistantly arranged on the end surface of the connecting end away from the fixing base, the driving positions are communicated with the sliding cavity, and the clamping jaws are movably connected in the driving positions.

[0010] Preferably, the left end of the piston rod is fixedly connected with a limiting block, and the outer wall of the limiting block is movably contacted with the inner wall of the movable cavity.

[0011] Beneficial effects

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] According to the structure design of the utility model, the first air inlet and the second air inlet are arranged, air is respectively introduced into the first air inlet and the second air inlet, the sliding of the piston rod in the sliding cavity is controlled, the clamping jaws are contacted with the driving positions through the sliding of the piston rod, the work of the clamping jaws is realized, and the traditional design mode is replaced, so that the utility is better. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the whole structure schematic view of the utility model;

[0015] Fig. 2 It is the section structure schematic view of the utility model;

[0016] Fig. 3 It is the connecting end structure schematic view of the utility model.

[0017] The corresponding relationship between the annotations of the drawings and the component names in the drawings is as follows:

[0018] 1. fixing base; 2. connecting end; 11. movable cavity; 12. first air inlet; 13. second air inlet;

[0019] 14. third sealing ring; 15. fourth sealing ring; 16. second chamber; 21. clamping jaw assembly; 22. sliding cavity;

[0020] 23. first chamber; 24. driving position; 25. limiting block; 26. connecting rod; 211. piston rod; 212. clamping jaw;

[0021] 213. first sealing ring; 214. second sealing ring; 2111. first connecting channel;

[0022] 2112. second connecting channel. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In the description of the utility model, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second" and "third" are only for descriptive purposes and should not be construed as indicating or implying relative importance.

[0025] As Figs. 1-3 It is a structure diagram of a stable pneumatic clamping jaw of a preferred embodiment of the utility model, in this embodiment, a stable pneumatic clamping jaw, comprising a fixed seat 1 and a connecting end 2, the fixed seat 1 is movably connected with the connecting end 2 at one end, the fixed seat 1 is provided with a movable cavity 11, the connecting end 2 is provided with a sliding cavity 22, the sliding cavity 22 is movably provided with a clamping jaw assembly 21, the clamping jaw assembly 21 comprises a piston rod 211, a clamping jaw 212, a first sealing ring 213 and a second sealing ring 214, the piston rod 211 is movably arranged in the sliding cavity 22, the piston rod 211 is sequentially sleeved with the first sealing ring 213 and the second sealing ring 214 from left to right on the surface, the right end of the piston rod 211 is rotatably connected with the clamping jaw 212.

[0026] In this embodiment, the connecting end 2 is fixedly connected with a connecting rod 26 at the left end, the connecting rod 26 is movably arranged in the movable cavity 11, and the connecting rod 26 is sequentially sleeved with a third sealing ring 14 and a fourth sealing ring 15 from left to right on the surface, and the third sealing ring 14 and the fourth sealing ring 15 are clamped in the fixed seat 1, and the third sealing ring 14 and the fourth sealing ring 15 play a role in limiting the longitudinal sliding of the connecting rod 26, and also increase the sealing effect.

[0027] In this embodiment, a first chamber 23 is formed between the first sealing ring 213 and the second sealing ring 214, and a second chamber 16 is formed between the third sealing ring 14 and the fourth sealing ring 15.

[0028] In the embodiment, the first air inlet 12 and the second air inlet 13 are arranged on the surface of the fixing base 1 respectively, the first connecting channel 2111 and the second connecting channel 2112 are arranged in the connecting rod 26, the first connecting channel 2111 is communicated with the second air inlet 13 at one end, the first connecting channel 2111 is communicated with the first chamber 23 at the other end, air is introduced through the second air inlet 13 and the first connecting channel 2111, air is introduced into the first chamber 23, the piston rod 211 moves to the right, the clamping jaw 212 is clamped, air is introduced through the first air inlet 12 and the second connecting channel 2112, air is directly introduced into the sliding cavity 22, the piston rod 211 moves to the left by increasing the air amount and pressing the right end surface of the piston rod 211, the clamping jaw 211 is opened, and only one of the first air inlet 12 and the second air inlet 13 is used for air introduction during work.

[0029] In the embodiment, the plurality of driving positions 24 are arranged on the surface of the connecting end 2 away from the fixing base 1, the driving positions 24 are communicated with the sliding cavity 22, and the clamping jaw 212 is movably connected in the driving position 24, the clamping jaw 212 is matched with the driving position 24 when the clamping jaw 212 moves left and right, so that the function of the pneumatic clamping jaw is realized, and the traditional structure design is replaced.

[0030] In the embodiment, the left end of the piston rod 211 is fixedly connected with the limiting block 25, and the outer wall of the limiting block 25 is movably contacted with the inner wall of the movable cavity 11, the structure design of the limiting block 25 plays a limiting role, and the connecting rod 26 is prevented from being separated from the fixing base 1.

[0031] Working principle

[0032] In specific use, air is introduced through the second air inlet 13 and the first connecting channel 2111, air is introduced into the first chamber 23, the piston rod 211 moves to the right by increasing the air amount, the clamping jaw 212 is clamped, air is introduced through the first air inlet 12 and the second connecting channel 2112, air is directly introduced into the sliding cavity 22, the piston rod 211 moves to the left by increasing the air amount and pressing the right end surface of the piston rod 211, and the clamping jaw 211 is opened.

[0033] The above is further detailed description of the utility model in combination with specific embodiments, and the specific embodiments of the utility model cannot be limited to these descriptions, for ordinary technical personnel in the technical field to which the utility model belongs, without departing from the concept of the utility model, a plurality of simple deductions or replacements can be made, and all of them should be regarded as belonging to the protection range determined by the claims of the utility model.

Claims

1. A stable pneumatic gripper, comprising a fixed base (1) and a connecting end (2), wherein the fixed base (1) is movably connected to the connecting end (2) at one end, a movable cavity (11) is formed in the fixed base (1), a sliding cavity (22) is formed in the connecting end (2), and a gripper assembly (21) is movably housed in the sliding cavity (22), characterized in that: The clamping jaw assembly (21) comprises a piston rod (211), a clamping jaw (212), a first sealing ring (213) and a second sealing ring (214), the piston rod (211) is movably arranged in the sliding cavity (22), the piston rod (211) is sequentially sleeved with the first sealing ring (213) and the second sealing ring (214) from left to right, and the right end of the piston rod (211) is rotatably connected with the clamping jaw (212).

2. The stable pneumatic gripper according to claim 1, wherein: The left end of the connecting end (2) is fixedly connected with a connecting rod (26), the connecting rod (26) is movably arranged in the movable cavity (11), the surface of the connecting rod (26) is sequentially sleeved with a third sealing ring (14) and a fourth sealing ring (15) from left to right, and the third sealing ring (14) and the fourth sealing ring (15) are clamped in the fixed seat (1).

3. The stabilizing pneumatic gripper of claim 2, wherein: The first sealing ring (213) and the second sealing ring (214) form a first cavity (23), and the third sealing ring (14) and the fourth sealing ring (15) form a second cavity (16).

4. The stabilizing pneumatic gripper of claim 2, wherein: The surface of the fixed seat (1) is respectively provided with a first air inlet (12) and a second air inlet (13), the connecting rod (26) is provided with a first connecting channel (2111) and a second connecting channel (2112), one end of the first connecting channel (2111) is communicated with the second air inlet (13), the other end of the first connecting channel (2111) is communicated with the first cavity (23), one end of the second connecting channel (2112) is communicated with the first air inlet (12), and the other end of the second connecting channel (2112) is communicated with the sliding cavity (22).

5. The stabilizing pneumatic gripper of claim 1, wherein: The surface of the connecting end (2) away from the fixed seat (1) is provided with a plurality of driving positions (24), the driving positions (24) are communicated with the sliding cavity (22), and the clamping jaw (212) is movably connected in the driving positions (24).

6. The stabilizing pneumatic gripper of claim 1, wherein: The left end of the piston rod (211) is fixedly connected with a limiting block (25), and the outer wall of the limiting block (25) is movably contacted with the inner wall of the movable cavity (11).

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