Gripper structure of steel gripping machine

Abstract

The utility model relates to the technical field of steel grabbing equipment, in particular to a gripper structure of a steel grabbing machine, which comprises a metal hydraulic gripper. The positioning device is mounted on the inner side of the metal hydraulic gripper; the positioning device comprises a mounting box fixedly connected to the inner side of the metal hydraulic gripper, an electric push rod is fixedly connected to the interior of the mounting box, an output shaft of the electric push rod penetrates through the exterior of the mounting box, a pressing plate is fixedly connected to the output shaft of the electric push rod, and a protection mechanism is fixedly connected to the surface of the pressing plate. The pressing plate is an electromagnet material component, and the pressing plate is in the shape of a cube; a worker can manually control the positioning device to press the steel on the inner side of the metal hydraulic gripper, so that the metal hydraulic gripper can stabilize the steel of different body types, and potential safety hazards in the steel clamping and transferring process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel grabbing equipment, in particular to a gripper structure of a steel grabbing machine. Background Art

[0002] A steel grabber, as the name suggests, is a machine for grabbing steel materials, which is generally evolved from a hydraulic excavator. The large and small arms of a steel grabber are called grab arms, which are generally longer, with a steel grabber at the front end. Its main function is to grab and load various materials such as scrap metal, industrial waste, gravel, construction waste, and domestic waste.

[0003] At present, a Chinese patent discloses a steel grabber gripper structure (publication number CN210312497U). When the steel to be grasped is small in size, the electromagnet can be contacted with the steel in advance so that it can be adsorbed on the electromagnet, and then the jaws are closed to grasp. The protrusions on the inside of the jaws can increase the friction between the steel and the jaws.

[0004] Since the clamping jaws of the above-mentioned device are of a closed structure, only the nail biting parts can be staggered and closed. When the volume of the grasped material is smaller than the space of the completely closed holes of the two clamping jaws, the grasped material can only be adsorbed by the electromagnet, and there is still some space below the grasped material. There is still a risk of the grasped material falling after being separated from the electromagnet, which poses a safety hazard.

[0005] Therefore, a gripper structure of a steel gripper is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a gripper structure of a steel grabber in order to solve the above-mentioned problem, thereby improving the problem that the gripper structure of the existing steel grabber is difficult to stably grip smaller-sized materials and has potential safety hazards.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a gripper structure of a steel grabber, comprising: a metal hydraulic gripper; a positioning device, wherein the positioning device is installed on the inner side of the metal hydraulic gripper; the positioning device comprises an installation box fixedly connected to the inner side of the metal hydraulic gripper, an electric push rod is fixedly connected to the interior of the installation box, an output shaft of the electric push rod passes through the outside of the installation box, a pressure plate is fixedly connected to the output shaft of the electric push rod, a protective mechanism is fixedly connected to the surface of the pressure plate, and a staff member can press the steel against the inner side of the metal hydraulic gripper by manually controlling the positioning device, which enables the metal hydraulic gripper to stabilize steels of different sizes, thereby reducing the potential safety hazards in the process of clamping and transporting steels.

[0008] Preferably, the pressing plate is an electromagnet material component, and the shape of the pressing plate is a cube. The staff can manually open and close the electromagnet so that the pressing plate can absorb smaller steel materials, thereby retaining the original function of the existing steel grabber gripper.

[0009] Preferably, the protection mechanism includes a protection pad fixedly connected to the bottom of the pressure plate, and the horizontal cross-section of the protection pad is a grid shape. The protection pad can reduce the probability of damaging the steel when the pressure plate presses or absorbs precise or fragile steel, so as to improve the practicality of the positioning device.

[0010] Preferably, the protection mechanism also includes a mounting tube fixedly connected to the top of the pressure plate, an airbag is embedded and installed inside the mounting tube, the surface of the airbag is fixedly connected and connected to an air duct, one end of the air duct passes through the mounting tube and is fixedly connected to the protection pad, a cavity connected to the air duct is opened inside the protection pad, and an adjustable design is adopted, which can adjust the elasticity of the protection pad according to needs to meet two different needs of improving the electromagnetic adsorption force and improving the protective clamping effect.

[0011] Preferably, the protection mechanism further comprises a threaded adjustment rod threadedly connected to the inner side of the mounting tube, the bottom of the threaded adjustment rod is in contact with the airbag, which enables the staff to stably adjust the elasticity of the protection pad.

[0012] Preferably, the bottom of the threaded adjustment rod is rotatably connected to a pressing piece in contact with the airbag, and the horizontal cross-sectional size of the pressing piece matches the interior of the mounting tube, which enables the airbag to be squeezed more evenly to improve the squeezing effect on the airbag.

[0013] Preferably, an adjustment cavity is provided at the bottom of the threaded adjustment rod, and the inner wall of the adjustment cavity is slidably connected to a sliding column fixedly connected to the pressing plate, which can provide sufficient expansion and contraction space for the airbag and avoid the probability of the airbag bursting due to excessive pressure.

[0014] Preferably, a spring is installed inside the adjusting chamber, and the top and bottom of the spring are between the adjusting chamber and the sliding column. This not only ensures that the staff can stably adjust the pressure of the protection pad, but also reserves sufficient expansion and contraction space for the airbag, further avoiding the probability of the airbag bursting due to excessive pressure.

[0015] The beneficial effects of the utility model are:

[0016] 1. The staff can press the steel against the inner side of the metal hydraulic gripper through the manually controlled positioning device, which can enable the metal hydraulic gripper to stabilize steel of different sizes, thereby reducing the safety hazards in the process of steel clamping and transportation;

[0017] 2. The protective pad can reduce the probability of damaging the steel when the pressure plate presses or adsorbs the delicate or fragile steel, so as to improve the practicality of the positioning device, and adopts an adjustable design, which can adjust the elasticity of the protective pad according to the needs to meet the two different needs of improving the electromagnetic adsorption force and improving the protective clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the positioning device in the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the positioning device in the utility model;

[0021] Figure 4 It is an explosion diagram of the protection mechanism in the utility model.

[0022] In the figure: 1. Metal hydraulic gripper; 2. Positioning device; 21. Mounting box; 22. Electric push rod; 23. Pressure plate; 24. Protection mechanism; 241. Protection pad; 242. Mounting tube; 243. Air bag; 244. Air guide tube; 245. Threaded adjustment rod; 246. Pressing piece; 247. Adjustment chamber; 248. Sliding column; 249. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] When implementing: Figure 1-4 As shown, a gripper structure of a steel gripper includes: a metal hydraulic gripper 1; a positioning device 2, which is installed on the inner side of the metal hydraulic gripper 1; the positioning device 2 includes a mounting box 21 fixedly connected to the inner side of the metal hydraulic gripper 1, an electric push rod 22 is fixedly connected to the inside of the mounting box 21, an output shaft of the electric push rod 22 extends to the outside of the mounting box 21, a pressure plate 23 is fixedly connected to the output shaft of the electric push rod 22, and a protective mechanism 24 is fixedly connected to the surface of the pressure plate 23; the pressure plate 23 is an electromagnet material component, and the shape of the pressure plate 23 is a cube.

[0025] like Figure 3 and Figure 4As shown, the protection mechanism 24 includes a protection pad 241 fixedly connected to the bottom of the pressure plate 23, and the horizontal cross-section of the protection pad 241 is in a grid shape; the protection mechanism 24 also includes a mounting tube 242 fixedly connected to the top of the pressure plate 23, and an air bag 243 is embedded and installed inside the mounting tube 242. The surface of the air bag 243 is fixedly connected and connected to an air guide tube 244. One end of the air guide tube 244 passes through the mounting tube 242 and is fixedly connected to the protection pad 241. The protection pad 241 has a cavity connected to the air guide tube 244 inside; the protection mechanism 24 also includes a threaded connection to The threaded adjustment rod 245 is installed on the inner side of the mounting tube 242, and the bottom of the threaded adjustment rod 245 is in contact with the airbag 243; the bottom of the threaded adjustment rod 245 is rotatably connected with a pressing piece 246 in contact with the airbag 243, and the horizontal cross-sectional size of the pressing piece 246 matches the interior of the mounting tube 242; the bottom of the threaded adjustment rod 245 is provided with an adjustment cavity 247, and the inner wall of the adjustment cavity 247 is slidably connected with a sliding column 248 fixedly connected with the pressing piece 246; the inside of the adjustment cavity 247 is installed with a spring 249, and the spring 249 is located between the adjustment cavity 247 and the sliding column 248;

[0026] The protective pad 241 can reduce the probability of damaging steel when the pressure plate 23 presses or adsorbs delicate or fragile steel, so as to improve the practicality of the positioning device 2, and the staff can rotate the threaded adjustment rod 245 in the corresponding direction, and the threaded adjustment rod 245 drives the adjustment chamber 247 to rise and fall, which increases or decreases the pressure of the spring 249, so that the spring 249 increases or decreases the pressure on the airbag 243 through the sliding column 248 and the pressure plate 246, increases or decreases the air pressure inside the protective pad 241, and then increases or decreases the elasticity of the protective pad 241 to meet the two different needs of improving the electromagnetic adsorption force and improving the protective clamping effect.

[0027] When the utility model is in use, after the staff controls the metal hydraulic gripper 1 to clamp the steel, the staff can control the electric push rod 22 to extend, and the electric push rod 22 drives the pressure plate 23 to move downward until the pressure plate 23 presses the steel against the inner side of the metal hydraulic gripper 1. At this time, the metal hydraulic gripper 1 cooperates with the pressure plate 23 to lock the steel between the two, which enables the metal hydraulic gripper 1 to stabilize steel of different sizes, thereby reducing the safety hazards in the process of clamping and transporting steel.

[0028] It should be noted that the metal hydraulic gripper 1, electric push rod 22 and electromagnet in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the metal hydraulic gripper 1, electric push rod 22 and electromagnet can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gripper structure of a steel grabber, characterized in that: include: Metal hydraulic gripper (1); A positioning device (2), wherein the positioning device (2) is installed on the inner side of the metal hydraulic gripper (1); The positioning device (2) comprises a mounting box (21) fixedly connected to the inner side of the metal hydraulic gripper (1); an electric push rod (22) is fixedly connected to the interior of the mounting box (21); an output shaft of the electric push rod (22) extends to the outside of the mounting box (21); the output shaft of the electric push rod (22) is fixedly connected to a pressure plate (23); and a protective mechanism (24) is fixedly connected to the surface of the pressure plate (23).

2. The gripper structure of a steel grabber according to claim 1, characterized in that: The pressing plate (23) is a component made of an electromagnet material, and the shape of the pressing plate (23) is a cube.

3. The gripper structure of a steel grabber according to claim 1, characterized in that: The protection mechanism (24) comprises a protection pad (241) fixedly connected to the bottom of the pressing plate (23); the horizontal cross-section of the protection pad (241) is in a grid shape.

4. The gripper structure of a steel grabber according to claim 3, characterized in that: The protection mechanism (24) further comprises a mounting tube (242) fixedly connected to the top of the pressure plate (23); an air bag (243) is embedded and installed inside the mounting tube (242); a surface of the air bag (243) is fixedly connected and communicated with an air guide tube (244); one end of the air guide tube (244) passes through the mounting tube (242) and is fixedly connected to the protection pad (241); a cavity is provided inside the protection pad (241) and is communicated with the air guide tube (244).

5. The gripper structure of a steel grabber according to claim 4, characterized in that: The protection mechanism (24) further comprises a threaded adjustment rod (245) threadedly connected to the inner side of the mounting tube (242), and the bottom of the threaded adjustment rod (245) is in contact with the air bag (243).

6. The gripper structure of a steel grabber according to claim 5, characterized in that: The bottom of the threaded adjustment rod (245) is rotatably connected to a pressing piece (246) in contact with the air bag (243), and the horizontal cross-sectional size of the pressing piece (246) matches the interior of the installation cylinder (242).

7. The gripper structure of a steel grabber according to claim 6, characterized in that: An adjustment cavity (247) is provided at the bottom of the threaded adjustment rod (245), and a sliding column (248) fixedly connected to the pressing sheet (246) is slidably connected to the inner wall of the adjustment cavity (247).

8. The gripper structure of a steel grabber according to claim 7, characterized in that: A spring (249) is installed inside the regulating chamber (247), and the spring (249) is located between the regulating chamber (247) and the sliding column (248).

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