Hydraulic control mechanism of engineering manipulator

Abstract

The hydraulic control mechanism is characterized in that a hydraulic cylinder is fixedly connected to the end of one side of a mounting plate, a shielding cover is arranged at the position, located on the outer side of a hydraulic rod, of the edge end of the mounting plate, and the end of the shielding cover is detachably connected to the edge of the mounting plate through an end plate; the clamping seat comprises a shielding cover, air boxes are installed at the two side edge ends of the interior of the shielding cover, air nozzles are connected to the side portions of the air boxes, air guide pipes are connected to the side portions of the air boxes, and air valves are arranged at the ends of the air guide pipes. Therefore, the situation that dry ash is attached to the surface of the object, and consequently the stability of the clamping base for clamping the object is reduced is avoided, meanwhile, pressure gas sprayed out of the air nozzles is utilized, dust generated during clamping operation can be effectively prevented from entering the inner side of the shielding cover, and therefore dustproof protection on the hydraulic control mechanism on the inner side of the shielding cover is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering manipulators, in particular to a hydraulic control mechanism of an engineering manipulator. Background Art

[0002] At present, the engineering manipulators are mainly divided into three types according to their driving modes: hydraulic control, pneumatic control and electric drive. In the actual application process, the hydraulically controlled engineering manipulator mainly drives the clamping structure to clamp the workpiece through the hydraulic cylinder, or the hydraulic cylinder transmits power to the clamping structure through a connecting rod or other transmission structure, thereby clamping the workpiece. Therefore, in order to ensure the stability of the engineering manipulator's clamping of the workpiece, the hydraulic control mechanism of the engineering manipulator needs to maintain stable transmission, so that the clamping mechanism can better perform the clamping operation;

[0003] However, the current hydraulic control mechanism lacks a shielding protection structure on the hydraulic cylinder and the outer side of the hydraulic control mechanism, which makes it easy for the hydraulic control mechanism to be interfered with by external objects during operation, resulting in a reduction in the transmission accuracy of the hydraulic control mechanism. At the same time, when the current hydraulic control mechanism controls the clamping mechanism to perform a clamping operation, it is impossible to ensure the cleanliness of the surface of the clamping part, which makes it easy for the clamping mechanism to be unable to stably clamp the clamping part due to dry dust and dirt attached to the surface of the clamping part. Utility Model Content

[0004] The utility model provides a hydraulic control mechanism for an engineering manipulator, which can effectively solve the problem proposed in the above background technology that the current hydraulic control mechanism lacks a shielding protection structure on the outer side of its hydraulic cylinder and the hydraulic control mechanism, which makes the hydraulic control mechanism easily interfered by external objects during operation, causing the transmission accuracy of the hydraulic control mechanism to be reduced; at the same time, when the current hydraulic control mechanism controls the clamping mechanism to perform a clamping operation, it is impossible to ensure the cleanliness of the surface of the clamping part, which makes the clamping mechanism easily unable to stably clamp the clamping part due to dry dust and dirt attached to the surface of the clamping part.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic control mechanism of an engineering manipulator, comprising a mounting plate, one end portion of the mounting plate is fixedly connected to a hydraulic cylinder, the telescopic end of the hydraulic cylinder is connected to a hydraulic rod, the end of the hydraulic rod is fixedly connected to an end seat, and both side edges of the end seat are connected to a connecting shaft, both sides of the mounting plate are fixedly connected to a fixed support plate, the end of the fixed support plate is connected to a rotating pin, and the fixed support plate is hingedly connected to a clamping arm through the rotating pin at its end, a limited guide groove is provided on one side edge of the clamping arm, the connecting shaft is connected to the inner side of the limited guide groove, and the end of the clamping arm is connected to a clamping seat;

[0006] The end of the hydraulic cylinder is connected to an oil pipe, and a protective tube is arranged on the outside of the hydraulic cylinder. One end of the protective tube is detachably connected to the edge of the mounting plate through a mounting seat, and a semicircular rubber ring is arranged at the middle end of the other side of the protective tube at the position outside the oil pipe.

[0007] A shielding cover is provided at the edge of the mounting plate at the outer side of the hydraulic rod, and the end of the shielding cover is detachably connected to the edge of the mounting plate through an end plate, and air boxes are installed on both side ends of the inside of the shielding cover, the edge of the air box is connected to an air nozzle, the edge of the air box is connected to an air guide pipe, and an air valve is provided at the end of the air guide pipe.

[0008] Preferably, the clamp arm slides along the outer side of the connecting shaft through a limiting guide groove on its edge, and the clamp arm is rotatably connected to the edge of the fixed support plate through a rotating pin.

[0009] Preferably, the protection tube and the shielding cover are both composed of two-half spliced ​​structures, and sealing strips are provided at the splicing positions of the edges of the protection tube and the shielding cover. The mounting seat and the end plate are connected to the mounting plate by bolts respectively.

[0010] Preferably, the air outlet direction of the air nozzle faces the clamping seat, and the air guide pipe is connected to the air outlet end of the external air pump.

[0011] Preferably, a fitting slot is provided inside the clamping seat, a fitting slot is embedded inside the limiting seat, a rubber clamp is bonded to the edge of the limiting seat, and a fastening side plate is provided at the edge of the limiting seat corresponding to the edge of the clamping seat.

[0012] Preferably, the limiting clamping seat is detachably connected to the clamping seat through a fastening side plate at its edge, and the fastening side plate and the clamping seat are connected by screws.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0014] 1. By arranging a protective cylinder and a shielding cover on the outside of the hydraulic cylinder and the hydraulic control mechanism, the outside of the hydraulic cylinder and the hydraulic control mechanism can be shielded and protected to avoid interference from external objects during operation. At the same time, the protective cylinder and the shielding cover are spliced ​​structures, which are convenient for disassembly with the mounting seat and the end plate, so as to facilitate more convenient maintenance of the hydraulic cylinder and the hydraulic control mechanism. In addition, by utilizing the semicircular rubber ring on the edge of the protective cylinder, the semicircular rubber ring can be tightly clamped to the outside of the oil pipe when the protective cylinder is installed, thereby limiting the position of the oil pipe and ensuring the stability of the oil supply to the hydraulic cylinder.

[0015] 2. By arranging an air box and an air nozzle on both sides of the inside of the shielding cover, in conjunction with an air guide pipe and an air valve, it is convenient to quickly introduce the gas transmitted by the external air supply component into the air box, and at the same time, in conjunction with the air nozzle, it is convenient to quickly and evenly spray the gas from both sides of the shielding cover, and the jet direction of the air nozzle is directly facing the clamping seat. Therefore, before the clamping seat clamps the object, the surface of the object can be cleaned by the ejected pressurized gas, thereby avoiding the adhesion of dry dust on the surface of the object, which reduces the stability of the clamping seat to clamp the object. At the same time, the pressurized gas ejected from the air nozzle can also effectively prevent the dust generated during the clamping operation from entering the inside of the shielding cover, thereby realizing dust-proof protection for the hydraulic control mechanism inside the shielding cover.

[0016] 3. The matching card slot opened inside the clamping seat makes it convenient to quickly limit and fix the limit card seat, so that the rubber clamp block is more convenient to disassemble and replace, and the rubber clamp block is quickly replaced to avoid the situation where the clamping stability of the rubber clamp block is reduced due to aging. At the same time, after the limit card seat is clamped between the matching card slot inside the clamping seat by tightening the side plate, the limit card seat and the clamping seat can be further locked and fixed, thereby ensuring the stability of the limit card seat and the rubber clamp block when clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the attached picture:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the protective tube of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the fixed support plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the limit card seat of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the shielding cover of the utility model;

[0024] Numbers in the figure: 1. Mounting plate; 2. Hydraulic cylinder; 3. Hydraulic rod; 4. End seat; 5. Connecting shaft; 6. Clamp arm; 7. Limit guide groove; 8. Fixed support plate; 9. Rotating pin; 10. Clamping seat; 11. Oil pipe; 12. Protective tube; 13. Mounting seat; 14. Semicircular rubber ring; 15. Shielding cover; 16. End plate; 17. Air box; 18. Air nozzle; 19. Air guide pipe; 20. Air valve; 21. Fitting slot; 22. Limiting seat; 23. Rubber clamp block; 24. Fastening side plate. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] Example: Figure 1-5 As shown, the utility model provides a technical solution, a hydraulic control mechanism of an engineering manipulator, comprising a mounting plate 1, one end of the mounting plate 1 is fixedly connected to a hydraulic cylinder 2, the telescopic end of the hydraulic cylinder 2 is connected to a hydraulic rod 3, the end of the hydraulic rod 3 is fixedly connected to an end seat 4, and both side edges of the end seat 4 are connected to a connecting shaft 5, both sides of the mounting plate 1 are fixedly connected to a fixed support plate 8, the end of the fixed support plate 8 is connected to a rotating pin 9, and the fixed support plate 8 is hingedly connected to a clamping arm 6 through the rotating pin 9 at its end, a limited guide groove 7 is provided on one side edge of the clamping arm 6, the connecting shaft 5 is connected to the inner side of the limited guide groove 7, the end of the clamping arm 6 is connected to a clamping seat 10, the clamping arm 6 slides along the outer side of the connecting shaft 5 through the limited guide groove 7 on its edge, and the clamping arm 6 is rotatably connected to the edge of the fixed support plate 8 through the rotating pin 9, so that when the hydraulic rod 3 drives the end seat 4 to move, the clamping arm 6 drives the clamping seat 10 to clamp;

[0027] The end of the hydraulic cylinder 2 is connected to an oil pipe 11, and a protective tube 12 is arranged outside the hydraulic cylinder 2. One end of the protective tube 12 is detachably connected to the edge of the mounting plate 1 through a mounting seat 13, and a semicircular rubber ring 14 is arranged at the middle end of the other side of the protective tube 12 at the outer side of the oil pipe 11.

[0028] The edge of the mounting plate 1 is provided with a shielding cover 15 at the outer side of the hydraulic rod 3, and the end of the shielding cover 15 is detachably connected to the edge of the mounting plate 1 through the end plate 16. The protective tube 12 and the shielding cover 15 are both composed of a two-half splicing structure, and the splicing positions of the edges of the protective tube 12 and the shielding cover 15 are provided with sealing strips. The mounting seat 13 and the end plate 16 are respectively connected to the mounting plate 1 by bolts, and the mounting seat 13 and the end plate 16 facilitate the disassembly of the protective tube 12 and the shielding cover 15, so as to facilitate more convenient maintenance of the hydraulic cylinder 2 and the hydraulic control mechanism, and ensure The tightness between the protection tube 12 and the shielding cover 15 during splicing, air boxes 17 are installed on both sides of the inner side of the shielding cover 15, the side of the air box 17 is connected with an air nozzle 18, the side of the air box 17 is connected with an air guide pipe 19, the air outlet direction of the air nozzle 18 is facing the clamping seat 10, the air guide pipe 19 is connected to the air outlet end of the external air pump, so as to facilitate the rapid introduction of the gas transmitted by the external air supply component into the air box 17, and cooperate with the pressurized gas sprayed by the air nozzle 18 to clean the surface of the object, thereby avoiding the adhesion of dry dust on the surface of the object, and an air valve 20 is provided at the end of the air guide pipe 19.

[0029] A fitting slot 21 is provided inside the clamping seat 10, and a fitting and clamping limiting seat 22 is embedded in the inner side of the fitting slot 21. A rubber clamp 23 is bonded to the edge of the limiting seat 22, and a fastening side plate 24 is provided at the edge of the limiting seat 22 corresponding to the edge of the clamping seat 10. The limiting seat 22 is detachably connected to the clamping seat 10 through the fastening side plate 24 on its edge, and the fastening side plate 24 is connected to the clamping seat 10 by screws, which facilitates the connection and fixation between the limiting seat 22 and the clamping seat 10.

[0030] Working principle and use process of the utility model: In the actual application process of the hydraulic control mechanism of the engineering manipulator, the hydraulic cylinder 2 and the hydraulic rod 3 are first installed through the mounting plate 1. In the actual application process, the hydraulic control mechanism is composed of the end seat 4, the connecting shaft 5, the clamping arm 6, the limit guide groove 7, the fixed support plate 8, the rotating pin shaft 9 and the clamping seat 10. The hydraulic cylinder 2 drives the hydraulic rod 3 to extend and retract, so that the hydraulic rod 3 drives the end seat 4 to move, so that the connecting shaft 5, the limit guide groove 7 and the rotating pin shaft 9 are used to make the clamping arm 6 drive the clamping seat 10 to clamp;

[0031] During the operation of the hydraulic control mechanism, the outer sides of the hydraulic cylinder 2 and the hydraulic control mechanism are provided with a protective tube 12 and a shielding cover 15, so as to shield and protect the outer sides of the hydraulic cylinder 2 and the hydraulic control mechanism, thereby avoiding interference from external objects during operation. The protective tube 12 and the shielding cover 15 are spliced ​​structures, and are convenient for disassembly with the mounting seat 13 and the end plate 16, so as to facilitate more convenient maintenance of the hydraulic cylinder 2 and the hydraulic control mechanism. In addition, the semicircular rubber ring 14 on the edge of the protective tube 12 can be tightly clamped to the outer side of the oil pipe 11 when the protective tube 12 is installed, so as to limit the position of the oil pipe 11 and ensure the stability of the oil supply of the hydraulic cylinder 2.

[0032] In the process of the clamping arm 6 driving the clamping seat 10 to clamp the object, firstly, by arranging the air box 17 and the air nozzle 18 on both sides of the inner part of the shielding cover 15, the air supply assembly 19 and the air valve 20 are matched to facilitate the rapid introduction of the gas transmitted by the external air supply assembly into the air box 17, and at the same time, the air nozzle 18 is matched to facilitate the rapid and uniform ejection of the gas from both sides of the shielding cover 15, so that the surface of the object can be cleaned by the ejected pressurized gas before the clamping seat 10 clamps the object, thereby avoiding the adhesion of dry dust on the surface of the object, which reduces the stability of the clamping seat 10 in clamping the object;

[0033] At the same time, the pressurized gas ejected from the air nozzle 18 can also effectively prevent dust generated during the clamping operation from entering the inner side of the shielding cover 15, thereby realizing dust-proof protection for the hydraulic control mechanism inside the shielding cover 15;

[0034] The engaging groove 21 provided inside the clamping seat 10 facilitates the rapid engagement and fixing of the limiting clamping seat 22, thereby making it more convenient to disassemble and replace the rubber clamping block 23, and facilitating the rapid replacement of the rubber clamping block 23, thereby avoiding the situation where the clamping stability of the rubber clamping block 23 is reduced due to aging. At the same time, after the limiting clamping seat 22 is engaged with the engaging groove 21 inside the clamping seat 10 by tightening the side plate 24, the limiting clamping seat 22 can be further locked and fixed with the clamping seat 10, thereby ensuring the stability of the limiting clamping seat 22 and the rubber clamping block 23 during clamping use.

[0035] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A hydraulic control mechanism for an engineering manipulator, comprising a mounting plate (1), characterized in that: One end of the mounting plate (1) is fixedly connected to a hydraulic cylinder (2), the telescopic end of the hydraulic cylinder (2) is connected to a hydraulic rod (3), the end of the hydraulic rod (3) is fixedly connected to an end seat (4), and both side edges of the end seat (4) are connected to connecting shafts (5), both sides of the mounting plate (1) are fixedly connected to fixed support plates (8), the ends of the fixed support plates (8) are connected to rotating pins (9), and the fixed support plates (8) are hingedly connected to the clamping arm (6) through the rotating pins (9) at their ends, a limiting guide groove (7) is provided on one side edge of the clamping arm (6), the connecting shaft (5) is connected to the inner side of the limiting guide groove (7), and the ends of the clamping arm (6) are connected to a clamping seat (10); The end of the hydraulic cylinder (2) is connected to an oil pipe (11), and a protective tube (12) is provided on the outside of the hydraulic cylinder (2); one end of the protective tube (12) is detachably connected to the edge of the mounting plate (1) via a mounting seat (13), and a semicircular rubber ring (14) is provided at the middle end of the other side edge of the protective tube (12) at a position outside the oil pipe (11); A shielding cover (15) is provided at the edge of the mounting plate (1) at an outer position of the hydraulic rod (3), and the end of the shielding cover (15) is detachably connected to the edge of the mounting plate (1) through an end plate (16), and air boxes (17) are installed on both side ends inside the shielding cover (15), and the edge of the air box (17) is connected to an air nozzle (18), and the edge of the air box (17) is connected to an air guide pipe (19), and an air valve (20) is provided at the end of the air guide pipe (19).

2. The hydraulic control mechanism of an engineering manipulator according to claim 1, characterized in that: The clamp arm (6) performs limited sliding along the outer side of the connecting shaft (5) through the limited guide groove (7) on its edge, and the clamp arm (6) is rotatably connected to the edge of the fixed support plate (8) through the rotating pin shaft (9).

3. The hydraulic control mechanism of an engineering manipulator according to claim 1, characterized in that: The protective tube (12) and the shielding cover (15) are both composed of two halves of a spliced ​​structure, and sealing strips are provided at the splicing positions of the edges of the protective tube (12) and the shielding cover (15). The mounting seat (13) and the end plate (16) are respectively connected to the mounting plate (1) by bolts.

4. The hydraulic control mechanism of an engineering manipulator according to claim 1, characterized in that: The air outlet direction of the air nozzle (18) faces the clamping seat (10), and the air guide pipe (19) is connected to the air outlet end of the external air pump.

5. The hydraulic control mechanism of an engineering manipulator according to claim 1, characterized in that: The clamping seat (10) is provided with a fitting slot (21) inside, and a fitting and clamping limit seat (22) is embedded in the inner side of the fitting slot (21), a rubber clamping block (23) is bonded to the edge of the limit seat (22), and a fastening side plate (24) is provided at the edge of the limit seat (22) corresponding to the edge of the clamping seat (10).

6. The hydraulic control mechanism of an engineering manipulator according to claim 5, characterized in that: The position limiting clamping seat (22) is detachably connected to the clamping seat (10) via a fastening side plate (24) at its edge, and the fastening side plate (24) and the clamping seat (10) are connected via screws.

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