Outer claw hand for grabbing hot galvanizing charging barrel and automatic outer claw hand equipment

Abstract

The utility model belongs to the technical field of hot galvanizing, and discloses an outer claw for grabbing a hot galvanizing charging barrel and automatic outer claw equipment, the outer claw for grabbing the hot galvanizing charging barrel comprises a support frame, three clamping claws hinged on the support frame and a linkage control mechanism for synchronously opening and closing the three clamping claws, the dust scraping rod is rotationally arranged on the supporting frame, the dust scraping plate is fixedly arranged on the dust scraping rod, and the power mechanism is used for driving the dust scraping rod to rotate. The automatic outer claw hand equipment for clamping the hot galvanizing charging barrel comprises a robot and the outer claw hand, and the robot is fixedly connected with the supporting frame. The zinc ash cleaning device can realize automatic zinc ash cleaning, is controlled by a robot, and can reduce the harm of smoke dust and high temperature to human bodies.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-dip galvanizing, relates to an outer claw hand for grabbing a hot-dip galvanizing barrel, and also relates to an automatic outer claw hand device for grabbing a hot-dip galvanizing barrel. Background Art

[0002] Hot-dip galvanizing of standard parts is an effective way to prevent metal corrosion. It is completed through the processes of finished product pickling - water washing - adding auxiliary plating solution - drying - dipping - cooling. In the dipping process, the standard parts are placed in the barrel, the barrel is grabbed by a hand-held claw, and it is placed in the zinc liquid for dipping. After the dipping is completed, the barrel is taken out by the hand-held claw.

[0003] The claw hand of the prior art includes a support frame, three clamping claws hinged on the support frame by hanging, and a linkage control mechanism for controlling the synchronous opening and closing of the three clamping claws. When in use, after the barrel and the standard parts in the barrel are immersed in the zinc liquid in the zinc pot, the claw hand releases the barrel and separates from the zinc liquid. The standard parts are taken out by the claw hand after being dipped for a period of time. The disadvantage of this structure when in use is that during the dip-plating process, the zinc liquid on the surface reacts with the oxygen in the air to generate zinc ash (zinc oxide) which adheres to the surface of the zinc liquid. When taking out the barrel, in order to prevent the zinc ash from adhering to the standard parts, it is necessary to manually approach the zinc liquid, push away the zinc ash on the surface of the zinc liquid, and then use the claw hand to take out the barrel, which not only wastes time, but also the smoke and high temperature generated during zinc dipping cause great harm to the health of the galvanizing workers. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the utility model aims to provide an outer claw hand for grabbing a hot-dip galvanized barrel, so as to improve work efficiency and reduce harm to the human body when scraping dust;

[0005] The utility model also provides an automatic outer claw hand device for grabbing the hot-dip galvanizing barrel, so as to achieve the purpose of preventing the zinc immersion environment from causing harm to the workers.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An external claw gripper for grasping a hot-dip galvanized barrel comprises a support frame, three clamping jaws hinged on the support frame, and a linkage control mechanism for making the three clamping jaws open and close synchronously, and also comprises a scraper rod rotatably arranged on the support frame, a scraper plate fixed on the scraper rod, and a power mechanism for driving the scraper rod to rotate.

[0008] As a limitation of the present invention, a connecting rod is fixedly provided on the support frame, and a baffle for preventing high temperature from diffusing upward is fixedly provided on the connecting rod.

[0009] As a further limitation of the present invention, the ends of the three clamping jaws that are not connected to the support frame are bent inward to form a hook-shaped structure for clamping the outer wall of the barrel.

[0010] As another limitation of the present invention, the three clamping jaws are all fixed with anti-collision blocks to prevent the barrel from falling, and the anti-collision blocks are located on the surface of the clamping jaws contacting the outer wall of the barrel.

[0011] As a further limitation of the present utility model, the linkage control mechanism includes a lifting frame, a connecting rod and a lifting drive mechanism for driving the lifting frame to approach or move away from the supporting frame. The lifting frame is located between the supporting frame and the baffle. Three connecting rods are provided. One end of the three connecting rods is respectively hinged to the lifting frame, and the other end is respectively hinged to the three clamping claws.

[0012] As a further limitation of the present invention, the power mechanism includes a motor and a reducer, and the output shaft of the reducer is fixedly connected to the scraper rod.

[0013] As a third limitation of the present utility model, the lifting drive mechanism is a cylinder or an electric push rod fixedly mounted on the support frame.

[0014] An automated external gripper device for grasping a hot-dip galvanized barrel comprises a robot and the external gripper for grasping a hot-dip galvanized barrel, wherein the robot is fixedly connected to a support frame.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The utility model is provided with a scraping device on the claw hand. Before the claw hand takes out the barrel, the scraping plate can automatically scrape off the zinc dust on the surface of the zinc liquid, which can not only improve the work efficiency, but also keep the workers away from the zinc liquid, reducing the harm of smoke and high temperature to the human body; at the same time, as the claw hand contacts the barrel, the scraping plate extends into the barrel, and can also stir the standard parts in the barrel, so that they are fully in contact with the zinc liquid, thereby improving the quality of galvanizing;

[0017] (2) The baffle of the utility model can prevent the high temperature in this area from being transmitted upward, protect the electrical components arranged on the upper part of the claw hand, and increase the service life of each electrical component;

[0018] (3) The clamping jaws of the utility model are bent inwardly to form a hook shape, so that the clamping jaws can clamp the barrel in a retracted state, which can improve the stability of clamping;

[0019] (4) When the utility model grabs the barrel, if the positioning is inaccurate, the barrel will be hit, and the anti-collision block can clamp the barrel to prevent the barrel from falling and damaging the equipment;

[0020] (5) The utility model is combined with a robot to realize unmanned and intelligent hot-dip galvanizing, improve work efficiency, and avoid the harm to the health of galvanizing workers caused by smoke and high temperature generated during galvanizing.

[0021] In summary, the utility model can realize automatic cleaning of zinc ash and robot control, can reduce the harm of smoke and high temperature to the human body, and is suitable for clamping cylindrical structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model;

[0024] Figure 2 This is a top view schematic diagram of the connection between the support frame and the connecting rod in Example 1 of the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of Example 2 of the utility model.

[0026] In the figure: 1. Support frame; 1.1. Upper fixed plate; 1.2. Lower fixed plate; 1.3. Connecting plate; 2. Clamping claw; 3. Anti-collision block; 4. Lifting frame; 5. Connecting rod; 6. Cylinder; 7. Connecting rod; 8. Baffle; 9. Scraping rod; 10. Scraping plate; 11. Motor; 12. Reducer; 13. Robot; 14. Barrel. DETAILED DESCRIPTION

[0027] 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 understand the present invention, and are not used to limit the present invention.

[0028] Example 1 An external claw gripper for grabbing hot-dip galvanized barrels

[0029] like Figure 1 As shown, this embodiment includes a support frame 1, three clamping jaws 2 and a linkage control mechanism. The three clamping jaws 2 are suspended and hinged on the support frame 1. The linkage control mechanism is used to make the three clamping jaws 2 open and close synchronously to grab the barrel 14.

[0030] The support frame 1 includes an upper fixed plate 1.1, a lower fixed plate 1.2 and a connecting plate 1.3. The upper fixed plate 1.1 and the lower fixed plate 1.2 are both circular plates, and the diameter of the upper fixed plate 1.1 is smaller than the diameter of the lower fixed plate 1.2. There are three connecting plates 1.3, all of which are triangular structures. The three connecting plates 1.3 are evenly distributed vertically between the upper fixed plate 1.1 and the lower fixed plate 1.2 to connect the upper fixed plate 1.1 and the lower fixed plate 1.2. The lower fixed plate 1.2 is used to assemble the clamping claw 2 and the linkage control mechanism, and the upper fixed plate 1.1 is used to connect the external moving mechanism to drive the entire claw hand to move to the position of grabbing and releasing the barrel 14.

[0031] The three clamping jaws 2 are evenly distributed in the circumferential direction of the lower fixed plate 1.2, and one end of the three clamping jaws 2 is hinged on the lower fixed plate 1.2, so that the three clamping jaws 2 are located below the lower fixed plate 1.2. The ends of the three clamping jaws 2 that are not connected to the support frame 1 are bent inward to form a hook-shaped structure for clamping the outer wall of the barrel 14. The three clamping jaws 2 are fixed with anti-collision blocks 3 to prevent the barrel 14 from falling. The anti-collision blocks 3 are located on the surface of the clamping jaws 2 that contacts the outer wall of the barrel 14, that is, on the same surface as the hook structure of the clamping jaws 2.

[0032] like Figure 1 , Figure 2 As shown, the linkage control mechanism includes a lifting frame 4, a connecting rod 5 and a lifting drive mechanism. The lifting frame 4 is located below the lower fixed plate 1.2, and the lifting frame 4 is a uniformly distributed three-pronged structure. The driving mechanism can be a cylinder 6 or an electric push rod. In this embodiment, a cylinder 6 is used, and the cylinder barrel part of the cylinder 6 is fixed on the lower fixed plate 1.2 and located above the lower fixed plate 1.2. The telescopic rod of the cylinder 6 extends below the lower fixed plate 1.2. There are three cylinders 6 in this embodiment. The telescopic rods of the three cylinders 6 are respectively fixedly connected to the three-pronged structure of the lifting frame 4 after passing through the lower fixed plate 1.2, and are used to drive the lifting frame 4 to approach or move away from the lower fixed plate 1.2 of the support frame 1. There are three connecting rods 5, one end of the three connecting rods 5 is respectively hinged to the lifting frame 4, and the other end is respectively hinged to the three clamping claws 2. The lifting of the lifting frame 4 drives the three connecting rods 5 to close or open synchronously, which is used to grab or release the barrel 14.

[0033] Three connecting rods 7 are fixed on the lower fixing plate 1.2 of the support frame 1. The three connecting rods 7 are evenly distributed on the lower fixing plate 1.2. A baffle 8 is fixed on the other end of the three connecting rods 7. One end of the connecting rod 7 connected to the lower fixing plate 1.2 is provided with an external thread. Two nuts are threadedly connected to the external screw of the connecting rod 7. The lower fixing plate 1.2 is clamped by the two nuts to achieve the connection between the connecting rod 7 and the lower fixing plate 1.2. The baffle 8 is circular and located below the lifting frame 4. It is used to prevent high temperature from spreading upwards and protect the cylinder 6 on the lower fixing plate 1.2 and the motor 11 and reducer 12 mentioned below to avoid high temperature erosion.

[0034] A scraper rod 9 is rotatably provided on the lower fixed plate 1.2 of the support frame 1. The scraper rod 9 passes through the lifting frame 4 and the baffle plate 8 and extends to the bottom of the baffle plate 8. A scraper plate 10 is fixed on the scraper rod 9. The scraper plate 10 is located below the hook end of the clamping jaw 2 and can scrape before grabbing the barrel 14. The scraper rod 9 is rotated by a power mechanism, which includes a motor 11 and a reducer 12 fixed on the lower fixed plate 1.2. The output shaft of the reducer 12 is fixedly connected to the scraper rod 9, and is used to drive the scraper plate 10 on the scraper rod 9 to rotate and remove the zinc ash on the surface of the zinc liquid.

[0035] When using this embodiment, the external moving mechanism is connected to the upper fixed plate 1.1 of the support frame 1 to drive the entire claw hand to move. When zinc dipping, first place the standard part in the barrel 14, then place the claw hand above the port of the barrel 14, retract the telescopic rod of the cylinder 6, drive the lifting frame 4 to move upward, and the three clamping claws 2 have a tendency to close under the drive of the three connecting rods 5, and are clamped on the outer wall of the port of the barrel 14 to grab the barrel 14, and then the barrel 14 is placed in the zinc liquid in the zinc pot, and the telescopic rod of the cylinder 6 is extended to drive the lifting frame 4 to move downward, and the three clamping claws 2 are opened under the drive of the three connecting rods 5, and the barrel 14 is put down, and the claw hand is removed. After zinc immersion for a period of time, the barrel 14 needs to be taken out. When taking it out, the moving mechanism is used to make the claw hand located above the zinc liquid, and the scraper plate 10 is located on the surface of the zinc liquid. The motor 11 is started to drive the scraper plate 10 to rotate, and the zinc ash on the surface of the zinc liquid is removed. Then the claw hand falls to grab the barrel 14 and take the barrel 14 out of the zinc liquid. In this process, the high-temperature gas generated by the zinc liquid is blocked by the baffle 8 to prevent the cylinder 6, the motor 11 and the reducer 12 from being corroded by the high temperature.

[0036] Example 2 An automated external gripper device for grabbing hot-dip galvanized barrels

[0037] like Figure 3 As shown, this embodiment includes a robot 13 and an outer claw gripper for grasping a hot-dip galvanized barrel as described in Example 1. The mechanical arm of the robot 13 is connected to the upper fixed plate 1.1 of the support frame 1. The robot 13 drives the entire outer claw gripper to move to the position where the barrel 14 needs to be picked up and placed. The robot 13 replaces manual operation, which can reduce harm to the human body and improve work efficiency.

[0038] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded 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 utility model shall be included in the protection scope of the utility model.

Claims

1. An external claw gripper for grasping a hot-dip galvanized barrel, comprising a support frame, three clamping claws hinged on the support frame, and a linkage control mechanism for making the three clamping claws open and close synchronously, characterized in that: The utility model also comprises a scraping rod rotatably arranged on a supporting frame, a scraping plate fixedly arranged on the scraping rod and a power mechanism for driving the scraping rod to rotate.

2. The outer claw gripper for grabbing a hot-dip galvanized barrel according to claim 1, characterized in that: A connecting rod is fixedly arranged on the support frame, and a baffle for preventing high temperature from diffusing upward is fixedly arranged on the connecting rod.

3. The outer claw gripper for grabbing a hot-dip galvanized barrel according to claim 2, characterized in that: The ends of the three clamping claws that are not connected to the support frame are all bent inwards to form a hook-shaped structure for clamping the outer wall of the barrel.

4. An outer claw gripper for grabbing a hot-dip galvanized barrel according to any one of claims 1 to 3, characterized in that: Anti-collision blocks are fixed on the three clamping jaws to prevent the barrel from falling, and the anti-collision blocks are located on the surface of the clamping jaws contacting the outer wall of the barrel.

5. An outer claw gripper for grabbing a hot-dip galvanized barrel according to claim 2 or 3, characterized in that: The linkage control mechanism includes a lifting frame, a connecting rod and a lifting drive mechanism for driving the lifting frame to approach or move away from the supporting frame. The lifting frame is located between the supporting frame and the baffle. Three connecting rods are provided. One end of the three connecting rods is respectively hinged to the lifting frame, and the other end is respectively hinged to the three clamping claws.

6. The outer claw gripper for grabbing a hot-dip galvanized barrel according to claim 5, characterized in that: The power mechanism comprises a motor and a reducer, and the output shaft of the reducer is fixedly connected to the scraper rod.

7. The outer claw gripper for grabbing a hot-dip galvanized barrel according to claim 6, characterized in that: The lifting drive mechanism is a cylinder or an electric push rod fixed on the support frame.

8. An automated external gripper device for grabbing hot-dip galvanized barrels, characterized in that: The invention comprises a robot and an outer claw gripper for grasping a hot-dip galvanized barrel as described in any one of claims 1 to 7, wherein the robot is fixedly connected to a support frame.

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