CN114688124A - Gripping apparatus oil cylinder and gripping material machine - Google Patents

Abstract

The invention provides a gripper cylinder and a gripper material machine, wherein the gripper cylinder comprises: the cylinder barrel is provided with a first inner cavity; a piston rod assembly; the guide sleeve assembly is arranged on the periphery of the piston rod assembly and is positioned between the cylinder barrel and the piston rod assembly; the buffer adjusting piece is arranged on the cylinder barrel; wherein, have first cushion chamber between piston rod subassembly and the cylinder, first cushion chamber and first inner chamber intercommunication, buffering regulating part sets up in first cushion chamber, and communicates with first cushion chamber. According to the technical scheme, when the piston rod assembly extends out, oil enters the first buffer cavity, the oil return section of the oil is reduced, the oil return resistance is increased, and the buffer effect on the piston rod assembly is achieved. The flow of the oil liquid in the first buffer cavity entering the oil return port is controlled by the buffer adjusting piece, so that the buffer effect of the oil liquid on the piston rod assembly is adjusted.

Description

Gripper Cylinders and Grippers

technical field

The invention relates to the technical field of grabbing feeder equipment, in particular to a grabbing oil cylinder and a grabbing feeder.

Background technique

At present, there is a gripper cylinder on the grab feeder. The gripper cylinder is used to provide driving power. The gripper cylinder is mostly used in high-pressure, high-speed operation and high-impact conditions. In the process of grabbing the material, the oil cylinder receives the greatest impact. At this time, the piston rod assembly is in a fully extended state, and the oil in the buffer chamber inside the grabber oil cylinder has a certain buffering effect on the piston rod assembly. However, in the related art, the cushioning effect of the oil on the piston rod assembly is not adjustable, and cannot meet the multi-strength cushioning requirements when the piston rod assembly is extended.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

Therefore, one object of the present invention is to provide a gripper cylinder.

Another object of the present invention is to provide a grab feeder.

In order to achieve the above object, an embodiment of the present invention provides a gripper oil cylinder. The gripper oil cylinder includes: a cylinder barrel with a first inner cavity; a piston rod assembly, partially disposed in the first inner cavity, and the piston rod assembly can be in The first inner cavity slides; the guide sleeve assembly is arranged on the outer circumference of the piston rod assembly, and is located between the cylinder barrel and the piston rod assembly; the buffer adjustment member is arranged on the cylinder barrel; There is a first buffer cavity in between, the first buffer cavity is communicated with the first inner cavity, the buffer adjustment member is partially arranged in the first buffer cavity and communicated with the first buffer cavity, and the buffer adjustment member is used to adjust the oil to the piston rod assembly. buffering effect.

In this technical solution, when the piston rod assembly extends, the oil enters the first buffer chamber, the oil return section of the oil becomes smaller, and the oil return resistance becomes larger, forming a buffer effect on the piston rod assembly. The buffer adjusting member adjusts the buffer effect of the oil on the piston rod assembly by controlling the flow of the oil in the first buffer chamber into the oil return port, so as to meet the multi-strength buffer requirements when the piston rod assembly extends.

In addition, the gripper cylinder in the above embodiment provided by the present invention may also have the following additional technical features:

In the above technical solution, the buffer adjustment member is a damping plug, the buffer adjustment member is provided with a flow hole and an adjustment hole, one end of the adjustment hole is communicated with the first buffer cavity, and the other end is communicated with the flow hole, and the diameter of the flow hole is larger than Adjust the hole diameter.

In this technical solution, by setting the diameter of the adjustment hole, the flow of the oil in the first buffer chamber into the oil return port is controlled, thereby realizing the function of the buffer adjustment member to adjust the buffer effect of the oil on the extension of the piston rod assembly.

In any of the above technical solutions, there is a second buffer cavity between the inner wall surface of the guide sleeve assembly and the piston rod assembly, the cylinder is provided with an oil return hole, the guide sleeve assembly is provided with a communication hole, and one end of the communication hole is connected to the first buffer cavity. The two buffer chambers are communicated, and the other end is communicated with the oil return hole.

In this technical solution, when the piston rod assembly extends, the oil enters the second buffer chamber, the oil return section of the oil becomes smaller, and the oil return resistance becomes larger, forming a buffer effect on the piston rod assembly. In addition, the second buffer cavity, the oil return hole and the communication hole form an oil return channel, and part of the oil in the first inner cavity flows out through the oil return channel, so as to meet the oil return requirements of the gripper cylinder.

In any of the above technical solutions, the piston rod assembly includes: a rod head, which is arranged outside the cylinder; a sealing end, which is arranged in the cylinder; a connecting cylinder, which has a second inner cavity, and one end of the connecting cylinder is connected with the rod head, The other end is connected with the sealing end; wherein, the sealing end divides the first inner cavity into a rod cavity and a rodless cavity.

In this technical solution, the second inner cavity can provide a flow channel for the oil, and at the same time provide a accommodating space for the connecting pipe, so as to ensure that the oil inlet can be arranged on the rod head to meet the design requirements of the gripper cylinder. In addition, the piston rod assembly is provided in a separate structure, which facilitates the manufacture of the piston rod assembly, thereby reducing the manufacturing cost of the piston rod assembly.

In any of the above technical solutions, the rod head is provided with a first oil hole, the sealing end is provided with a through hole, the piston rod assembly further includes a connecting pipe, and the connecting pipe is partially arranged in the second inner cavity of the connecting cylinder, and the connecting pipe is One end is communicated with the first oil hole, and the other end is pierced through the through hole and communicated with the rodless cavity.

In this technical solution, by pressurizing the first oil hole, the oil enters the rodless cavity through the first oil hole and the connecting pipe in turn, thereby pushing the piston rod assembly to move right out of the cylinder, thereby ensuring that the gripper oil cylinder can operate normally work. In addition, the first oil hole is arranged on the rod head, so as to provide installation space for the external hydraulic pipeline and facilitate the connection of the external hydraulic pipeline.

In any of the above technical solutions, the rod head is provided with a second oil hole, the second oil hole is spaced from the first oil hole, the sealing end is provided with an overflow channel, and the second oil hole and the overflow channel are both connected with the second oil hole. Inner cavity communication.

In this technical solution, by pressurizing the second oil hole, the oil enters the rod cavity through the second oil hole, the second inner cavity and the overflow channel in sequence, thereby pushing the piston rod assembly to move left and retract into the cylinder, This in turn ensures that the gripper cylinder can work properly. In addition, the second oil hole is provided on the rod head, so as to provide installation space for the external hydraulic pipeline and facilitate the connection of the external hydraulic pipeline.

In any of the above technical solutions, the sealing end includes: a main body, provided with a through hole; a piston sleeve, arranged on the outer periphery of the main body, and threadedly matched with the main body; a retaining ring, arranged on the outer periphery of the main body, one end of the retaining ring Abutting with the piston sleeve, and the other end abutting with the body.

In this technical solution, the piston sleeve is threadedly connected to the body, so that the relative position between the piston sleeve and the body can be adjusted, that is, the axial length of the sealing end can be adjusted, thereby ensuring that the piston rod assembly can meet the installation requirements. The retaining ring has a limiting function, and by limiting the length of the retaining ring, the relative position between the piston sleeve and the body can be accurately defined, thereby ensuring that the piston rod assembly can better meet the installation requirements.

In any of the above technical solutions, the gripper oil cylinder further includes a wear-resistant ring, and the wear-resistant ring is arranged on the piston rod assembly.

In this technical solution, the wear-resistant ring has a wear-resistant effect, which can avoid the rigid contact between the piston rod assembly and the cylinder barrel, resulting in wear and damage of the piston rod assembly, thereby prolonging the service life of the piston rod assembly and reducing the use of the gripper cylinder. and maintenance costs.

In any of the above technical solutions, the gripper oil cylinder further includes an oil return port, which is connected to the outer wall surface of the cylinder barrel and communicated with the buffer adjustment member and the oil return hole of the cylinder barrel.

In this technical solution, the oil return port is used as a connection port and can be connected with an external pipeline, so as to ensure that the gripper cylinder can return oil normally, thereby ensuring that the gripper cylinder can work normally.

The technical solution of the second aspect of the present invention provides a grabbing feeder. The grabbing feeder includes a grabbing machine body and a gripper oil cylinder according to any one of the technical solutions of the first aspect. on the reclaimer body.

The grab feeder provided by the technical solution of the second aspect of the present invention has all the beneficial effects of any of the above technical solutions because it includes the gripper oil cylinder of any of the technical solutions of the first aspect, and will not be repeated here. .

In the above solution, since the grabber is integrated with the grabber cylinder, the piston rod assembly of the grabber cylinder can be stably and reliably extended when the grabber is grabbing, thereby improving the work of the grabber. stability and reliability.

Additional aspects and advantages of the present invention will become apparent in the description section that follows, or will be learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

Fig. 1 shows a cross-sectional view of a gripper cylinder according to an embodiment of the present invention (the direction of the arrow in the figure is the flow direction of oil);

FIG. 2 shows a partial enlarged view of the gripper cylinder of FIG. 1 .

Among them, the corresponding relationship between the reference numerals and the component names in Fig. 1 and Fig. 2 is:

10, cylinder; 12, first inner cavity; 122, rod cavity; 124, rodless cavity; 14, oil return hole; 20, piston rod assembly; 21, first seal; 22, rod head; 222, 224, the second oil hole; 24, the sealing end; 242, the flow passage; 244, the body; 246, the piston sleeve; 248, the retaining ring; 26, the connecting cylinder; 262, the second inner cavity; 28, connecting pipe; 30, guide sleeve assembly; 32, communication hole; 34, second seal; 36, guide sleeve; 40, buffer adjustment part; 42, flow hole; 44, adjustment hole; 50, first buffer cavity; 60, the second buffer cavity; 70, the wear ring; 80, the oil return port.

Detailed ways

In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Example limitations.

Gripper cylinders according to some embodiments of the present invention are described below with reference to FIGS. 1 and 2 .

As shown in FIGS. 1 and 2 , the present invention and embodiments of the present invention provide a gripper oil cylinder. The gripper oil cylinder includes a cylinder barrel 10 , a piston rod assembly 20 , a guide sleeve assembly 30 and a buffer adjustment member 40 . The cylinder barrel 10 has a first inner cavity 12 , the piston rod assembly 20 is partially disposed in the first inner cavity 12 , and the piston rod assembly 20 can slide in the first inner cavity 12 . The guide sleeve assembly 30 is disposed on the outer circumference of the piston rod assembly 20 and is located between the cylinder barrel 10 and the piston rod assembly 20 . The buffer adjustment member 40 is provided on the cylinder tube 10 . There is a first buffer cavity 50 between the piston rod assembly 20 and the cylinder 10, the first buffer cavity 50 communicates with the first inner cavity 12, and the buffer adjustment member 40 is partially disposed in the first buffer cavity 50, and is connected with the first buffer cavity. 50 is connected, and the buffer adjusting member 40 is used to adjust the buffer effect of the oil on the piston rod assembly 20 .

In the above arrangement, when the piston rod assembly 20 is extended, the oil enters the first buffer chamber 50 , the oil return section of the oil becomes smaller, and the oil return resistance becomes larger, forming a buffer effect on the piston rod assembly 20 . The buffer adjusting member 40 adjusts the buffer effect of the oil on the piston rod assembly 20 by controlling the flow of the oil in the first buffer chamber 50 into the oil return port 80 to meet the multi-strength buffer requirements when the piston rod assembly 20 is extended .

Specifically, as shown in FIG. 1 and FIG. 2 , in the embodiment of the present invention, the buffer adjustment member 40 is a damping plug, and the buffer adjustment member 40 is provided with a flow hole 42 and an adjustment hole 44 , and one end of the adjustment hole 44 is connected to the first A buffer cavity 50 is communicated with, and the other end is communicated with the flow hole 42 , and the hole diameter of the flow hole 42 is larger than that of the adjustment hole 44 .

In the above setting, by setting the diameter of the adjustment hole 44, the flow rate of the oil in the first buffer chamber 50 entering the oil return port 80 is controlled, thereby realizing the buffering effect of the buffer adjusting member 40 adjusting the oil when the piston rod assembly 20 is extended. function.

It should be noted that the diameter of the adjustment hole 44 is closely related to the oil pressure in the first buffer chamber 50 and the time when the piston rod assembly 20 extends out of the cylinder barrel 10 . The oil pressure in the first buffer chamber 50 and the time when the piston rod assembly 20 extends out of the cylinder barrel 10 directly reflects the buffering effect of the oil on the piston rod assembly 20 . That is to say, the greater the oil pressure in the first buffer chamber 50 is, the shorter the time for extending the cylinder barrel 10 is, which indicates that the buffer effect of the oil on the piston rod assembly 20 is stronger. Therefore, by setting the diameter of the adjustment hole 44, the buffering effect of the oil on the extension of the piston rod assembly 20 can be adjusted. In order to achieve buffering effects of different strengths, the buffering adjusting members 40 can be arranged in series, that is, the size of the adjusting holes 44 of the buffering adjusting member 40 is provided with various specifications. When a buffering effect of a certain strength is required, a buffer adjusting member 40 of a corresponding specification is installed on the cylinder barrel 10 .

Specifically, as shown in FIGS. 1 and 2 , in the embodiment of the present invention, there is a second buffer cavity 60 between the inner wall surface of the guide sleeve assembly 30 and the piston rod assembly 20 , and the cylinder 10 is provided with an oil return hole 14. The guide sleeve assembly 30 is provided with a communication hole 32 , one end of the communication hole 32 is communicated with the second buffer cavity 60 , and the other end is communicated with the oil return hole 14 .

In the above arrangement, when the piston rod assembly 20 is extended, the oil enters the second buffer chamber 60 , the oil return section of the oil becomes smaller, and the oil return resistance becomes larger, forming a buffer effect on the piston rod assembly 20 . In addition, the second buffer cavity 60, the oil return hole 14 and the communication hole 32 form an oil return channel, and part of the oil in the first inner cavity 12 flows out through the oil return channel, so as to meet the oil return requirements of the gripper cylinder.

It should be noted that part of the oil in the first inner cavity 12 flows out through the oil return channel, and another part of the oil flows out through the buffer adjustment member 40, and the oil return channel and the buffer adjustment member 40 are used to meet the oil return of the gripper cylinder It is required that the buffer adjusting member 40 can also adjust the buffer effect of the oil on the extension of the piston rod assembly 20 .

Specifically, as shown in FIGS. 1 and 2 , in the embodiment of the present invention, the piston rod assembly 20 includes a rod head 22 , a sealing end head 24 and a connecting cylinder 26 . The rod head 22 is arranged outside the cylinder barrel 10 . A sealing end 24 is provided within the cylinder barrel 10 . The connecting cylinder 26 has a second inner cavity 262 , one end of the connecting cylinder 26 is connected with the rod head 22 , and the other end is connected with the sealing end 24 . The sealing end 24 divides the first inner cavity 12 into a rod cavity 122 and a rodless cavity 124 .

In the above arrangement, the second inner cavity 262 can provide a flow channel for the oil, and at the same time provide a accommodating space for the connecting pipe 28, so as to ensure that the oil inlet can be arranged on the rod head 22 to meet the design requirements of the gripper cylinder. In addition, the piston rod assembly 20 is provided as a separate structure, which facilitates the manufacture of the piston rod assembly 20, thereby reducing the manufacturing cost of the piston rod assembly 20.

Specifically, as shown in FIGS. 1 and 2, in the embodiment of the present invention, the rod head 22 is provided with a first oil hole 222, the sealing end 24 is provided with a through hole, and the piston rod assembly 20 further includes a connecting pipe 28, The connecting pipe 28 is partially arranged in the second inner cavity 262 of the connecting cylinder 26 , one end of the connecting pipe 28 communicates with the first oil hole 222 , and the other end passes through the through hole and communicates with the rodless cavity 124 .

In the above setting, by pressurizing the first oil hole 222, the oil enters the rodless cavity 124 through the first oil hole 222 and the connecting pipe 28 in turn, thereby pushing the piston rod assembly 20 to move right out of the cylinder barrel 10, thereby ensuring the gripping force. The oil cylinder can work normally. In addition, the first oil hole 222 is provided on the rod head 22, so as to provide an installation space for the external hydraulic pipeline and facilitate the connection of the external hydraulic pipeline.

Specifically, as shown in FIG. 1 and FIG. 2 , in the embodiment of the present invention, the rod head 22 is provided with a second oil hole 224 , the second oil hole 224 is spaced apart from the first oil hole 222 , and the sealing end 24 is provided There is an overflow channel 242 , and both the second oil hole 224 and the overflow channel 242 communicate with the second inner cavity 262 .

In the above arrangement, by pressurizing the second oil hole 224, the oil enters the rod cavity 122 through the second oil hole 224, the second inner cavity 262 and the overflow channel 242 in sequence, thereby pushing the piston rod assembly 20 to move left and retract. inside the cylinder barrel 10, thereby ensuring that the gripper cylinder can work normally. In addition, the second oil hole 224 is provided on the rod head 22, so as to provide an installation space for the external hydraulic pipeline and facilitate the connection of the external hydraulic pipeline.

Specifically, as shown in FIGS. 1 and 2 , in the embodiment of the present invention, the sealing end 24 includes a body 244 , a piston sleeve 246 and a retaining ring 248 . The body 244 is provided with via holes. The piston sleeve 246 is disposed on the outer circumference of the body 244 and is threadedly engaged with the body 244 . The retaining ring 248 is disposed on the outer circumference of the main body 244 . One end of the retaining ring 248 is in contact with the piston sleeve 246 , and the other end is in contact with the main body 244 .

In the above arrangement, the piston sleeve 246 is threadedly connected with the main body 244, so that the relative position between the piston sleeve 246 and the main body 244 is adjustable, that is, the axial length of the sealing end 24 is adjustable, thereby ensuring that the piston rod assembly 20 can meet the installation requirements. Require. The retaining ring 248 has a limiting function. By limiting the length of the retaining ring 248, the relative position between the piston sleeve 246 and the body 244 can be accurately defined, thereby ensuring that the piston rod assembly 20 can better meet the installation requirements.

Specifically, as shown in FIGS. 1 and 2 , in the embodiment of the present invention, the gripper oil cylinder further includes a wear-resistant ring 70 , and the wear-resistant ring 70 is provided on the piston rod assembly 20 .

In the above arrangement, the wear-resistant ring 70 has a wear-resistant effect, which can avoid the problem that the piston rod assembly 20 is in rigid contact with the cylinder barrel 10, resulting in wear and damage of the piston rod assembly 20, thereby prolonging the service life of the piston rod assembly 20 and reducing the gripper Cylinder use and maintenance costs.

Specifically, as shown in FIG. 1 and FIG. 2 , in the embodiment of the present invention, the gripper oil cylinder further includes an oil return port 80 . The oil return port 80 is connected to the outer wall surface of the cylinder barrel 10 and is connected to the buffer adjustment member 40 and the oil return port 80 . The oil return hole 14 of the cylinder bore 10 communicates with each other.

In the above arrangement, the oil return port 80 is used as a connection port and can be connected to the oil return tank, so as to ensure that the gripper cylinder can return oil normally, thereby ensuring that the gripper cylinder can work normally.

Specifically, as shown in FIGS. 1 and 2 , in the embodiment of the present invention, the piston rod assembly 20 further includes a first sealing member 21 , and the first sealing member 21 is arranged on the outer circumference of the sealing end 24 , and the guide sleeve The assembly 30 includes a second seal 34 and a guide sleeve 36 . The second seal 34 is disposed on the guide sleeve 36 .

In the above arrangement, the first sealing member 21 is used to seal the gap between the sealing end 24 and the inner wall surface of the cylinder barrel 10, so as to separate the first inner cavity 12 into the rod cavity 122 and the rodless cavity 124, thereby ensuring the gripper The cylinder can work normally. The second seal 34 is used to seal the gap between the piston rod assembly 20 and the cylinder barrel 10, and the gap between the piston rod assembly 20 and the guide sleeve 36, so as to prevent oil leakage of the gripper cylinder or external impurities from entering the gripper cylinder, This ensures that the gripper cylinder can work properly.

The present invention also provides a grabbing feeder, the grabbing machine includes a grabbing machine body and the grabber oil cylinder according to any one of the embodiments of the first aspect, and the grabber oil cylinder is arranged on the grabbing machine body.

In the above arrangement, since the grabber is integrated with the grabber cylinder, the piston rod assembly 20 of the grabber cylinder can be stably and reliably extended when the grabber is grabbing the material, thereby improving the work of the grabber. stability and reliability.

The grab feeder provided by the technical solution of the second aspect of the present invention has all the beneficial effects of any of the above-mentioned embodiments because it includes the grabber cylinder of any of the embodiments of the first aspect, and will not be repeated here. .

It should be noted that, when the oil enters the rodless cavity 124 through the first oil hole 222, it can push the piston rod assembly 20 to move to the right, and the piston rod assembly 20 extends. When the oil enters the rod cavity 122 through the second oil hole 224, it can push the piston rod assembly 20 to move to the left, and the piston rod assembly 20 retracts. When the piston rod assembly 20 is extended, the rod cavity 122 returns oil. When the oil enters the first buffer cavity 50 and the second buffer cavity 60, the oil return section becomes smaller and the oil return resistance becomes larger, forming a buffer effect. The oil flows to the oil return hole 14 through the communication hole 32 , and quickly flows to the oil return tank through the oil return port 80 . Part of the oil entering the first buffer chamber 50 and the second buffer chamber 60 is returned to oil through the oil return hole 14 , and the other part is returned to the oil through the buffer adjustment member 40 . The buffer adjustment member 40 is provided with an adjustment hole 44, the diameter of the adjustment hole 44 becomes larger, the oil return speed is accelerated, and the buffer time is shortened. On the contrary, the diameter of the adjustment hole 44 becomes smaller, the oil return speed becomes slower, and the buffer time becomes longer.

The gripper cylinder and gripper feeder in this application have the following advantages:

The same side of the rod head 22 is provided with a first oil hole 222 and a second oil hole 224. When the rod head 22 enters oil, part of the oil entering the first buffer chamber 50 and the second buffer chamber 60 returns quickly through the oil return hole 14. oil, and the other part is returned to the oil through the buffer adjustment member 40. Through this arrangement, the oil inlet operation is facilitated and the installation space is provided for the external hydraulic pipeline, and the appropriate buffer adjustment member 40 can be selected according to the actual needs to adjust the buffer effect, and the scope of application.

From the above description, it can be seen that when the piston rod assembly 20 is extended, the oil enters the first buffer chamber 50 , the oil return section of the oil becomes smaller, and the oil return resistance becomes larger, forming an opposite effect to the piston rod assembly 20 . buffering effect. The buffer adjusting member 40 adjusts the buffer effect of the oil on the piston rod assembly 20 by controlling the flow of the oil in the first buffer chamber 50 into the oil return port 80 to meet the buffer requirement when the piston rod assembly 20 is extended.

In the present invention, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be construed as indicating or implying relative importance; the term "multiple" refers to two or two above, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A gripper cylinder, characterized in that the gripper cylinder comprises:

a cylinder (10) having a first inner chamber (12);

a piston rod assembly (20) partially disposed within the first interior cavity (12), the piston rod assembly (20) being slidable within the first interior cavity (12);

a guide bush assembly (30) provided on an outer periphery of the piston rod assembly (20) and located between the cylinder tube (10) and the piston rod assembly (20);

a damping adjustment element (40) arranged on the cylinder (10);

the piston rod assembly comprises a cylinder barrel (10), a first buffer cavity (50) is arranged between the piston rod assembly (20) and the cylinder barrel (10), the first buffer cavity (50) is communicated with a first inner cavity (12), the part of a buffering adjusting piece (40) is arranged in the first buffer cavity (50) and communicated with the first buffer cavity (50), and the buffering adjusting piece (40) is used for adjusting the buffering effect of oil on the piston rod assembly (20).

2. The gripper cylinder according to claim 1, wherein the damping adjuster (40) is a damping plug, the damping adjuster (40) is provided with an overflowing hole (42) and an adjusting hole (44), one end of the adjusting hole (44) is communicated with the first damping cavity (50), the other end is communicated with the overflowing hole (42), and the diameter of the overflowing hole (42) is larger than that of the adjusting hole (44).

3. The gripper cylinder according to claim 1, wherein a second buffer chamber (60) is provided between an inner wall surface of the guide sleeve assembly (30) and the piston rod assembly (20), an oil return hole (14) is provided on the cylinder tube (10), a communication hole (32) is provided on the guide sleeve assembly (30), one end of the communication hole (32) is communicated with the second buffer chamber (60), and the other end is communicated with the oil return hole (14).

4. The gripper cylinder of claim 3, wherein the piston rod assembly (20) comprises:

a rod head (22) disposed outside the cylinder (10);

a sealing end (24) disposed within the cylinder (10);

a connecting cylinder (26) with a second inner cavity (262), wherein one end of the connecting cylinder (26) is connected with the club head (22), and the other end is connected with the sealing end head (24);

wherein the sealing tip (24) separates the first interior chamber (12) into a rod chamber (122) and a rodless chamber (124).

5. The gripper cylinder according to claim 4, wherein the rod head (22) is provided with a first oil hole (222), the seal head (24) is provided with a through hole, the piston rod assembly (20) further comprises a connecting tube (28), the connecting tube (28) is partially arranged in the second inner cavity (262) of the connecting cylinder (26), one end of the connecting tube (28) is communicated with the first oil hole (222), and the other end of the connecting tube is penetrated out of the through hole to be communicated with the rodless cavity (124).

6. The gripper cylinder according to claim 5, wherein the rod head (22) is provided with a second oil hole (224), the second oil hole (224) is spaced from the first oil hole (222), the seal head (24) is provided with a flow passage (242), and the second oil hole (224) and the flow passage (242) are both communicated with the second inner cavity (262).

7. The gripper cylinder of claim 5 wherein the seal head (24) comprises:

a body (244) provided with the via;

a piston sleeve (246) provided on an outer circumference of the body (244) and screw-engaged with the body (244);

and a retainer ring (248) provided on the outer periphery of the body (244), wherein one end of the retainer ring (248) abuts against the piston sleeve (246), and the other end abuts against the body (244).

8. The gripper cylinder of any of claims 1-7, further comprising a wear ring (70), the wear ring (70) being disposed on the piston rod assembly (20).

9. A gripper cylinder according to any one of claims 1 to 7, characterized in that it further comprises an oil return (80), said oil return (80) being connected to the outer wall surface of the cylinder barrel (10) and communicating with the damping adjuster (40) and the oil return (14) of the cylinder barrel (10).

10. Grabbing stock machine, characterized in that it comprises a grabbing stock machine body and a gripper cylinder according to any one of claims 1-9, which gripper cylinder is arranged on the grabbing stock machine body.

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