Automatic welding equipment for rock drilling tool

Abstract

The utility model relates to the technical field of drilling tool machining, in particular to automatic welding equipment for rock drilling tools, which is characterized in that when the automatic welding equipment is used, workpieces are sequentially placed on a conveying component, and an electric turntable is started to intermittently rotate; the conveying assemblies are matched with outer gear rings to drive workpieces to rotate while the supporting table drives the multiple conveying assemblies to conduct intermittent revolution, so that the heating assemblies evenly heat and braze the workpieces, the discharging assemblies discharge the workpieces after braze welding is completed, and the welding efficiency is improved. Comprising a working table, an electric rotating disc, a supporting table and an outer gear ring, the electric rotating disc and the outer gear ring are arranged at the top end of the working table, the supporting table is arranged at the top end of the electric rotating disc, and the outer gear ring is arranged on the outer side of the electric rotating disc. A plurality of conveying assemblies are arranged on the supporting table, and the heating assemblies are used for conducting heating brazing machining on workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of drill tool processing, in particular to an automatic welding device for rock drilling tools. Background Art

[0002] A rock drilling tool is a tool for drilling round holes (blast holes) filled with explosives in rocks. The rock drilling tool includes a bit, a drill rod, a connecting sleeve and a shank. The bit needs to go through a brazing process during processing.

[0003] In the prior art, a patent document with the publication number of CN205571647U discloses a heating mechanism for tool welding and an automatic tool welding device, including a rotatable turntable, a driving motor for driving the turntable to rotate, and a heater for heating the tool. The turntable is horizontally arranged, and a placement area for placing the tool is arranged on the turntable. The placement area is annular and concentric with the turntable. The heater includes a heating tube, and the heating tube is located above the turntable and distributed on both sides of the placement area.

[0004] It is found during use that when the above device is used for heating and brazing the workpiece, the heated part of the workpiece is in a fixed state, and the heating uniformity is poor, which affects the brazing efficiency. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides an automatic welding device for rock drilling tools that improves heating uniformity.

[0006] An automatic welding device for rock drilling tools of the utility model includes a workbench, an electric turntable, a support table and an external gear ring. The electric turntable and the external gear ring are arranged at the top of the workbench. The support table is arranged at the top of the electric turntable. The external gear ring is outside the electric turntable. The device further includes a heating component, a conveying component and a discharging component. The heating component and the discharging component are respectively arranged at the top of the workbench, and multiple groups of conveying components are arranged on the support table. The heating component is used for heating and brazing the workpiece, the conveying component is used for conveying the workpiece, and the discharging component is used for discharging the brazed workpiece; during use, the workpieces are sequentially placed on the conveying component, the electric turntable is started to rotate intermittently, so that the support table drives the multiple groups of conveying components to revolve intermittently while the conveying component drives the workpiece to rotate self - clockwise in cooperation with the external gear ring, so that the heating component uniformly heats and brazes the workpiece. After brazing, the discharging component discharges the workpiece, improving the welding efficiency.

[0007] Preferably, the heating component includes an intermediate - frequency heating furnace and a heating coil. The intermediate - frequency heating furnace is arranged at the top of the workbench, and the heating coil is arranged at the output end of the intermediate - frequency heating furnace; the heating coil uniformly heats and brazes the workpiece that revolves and rotates self - clockwise, improving the welding uniformity.

[0008] Preferably, the conveying assembly includes rollers, a rotating shaft, a gear, a mounting seat, and a positioning groove. The rotating shaft passes through the support platform and is rotatably connected to the support platform. A mounting seat is provided at the top end of the rotating shaft, a positioning groove is provided at the top end of the mounting seat, and multiple groups of rollers are circumferentially arranged at the bottom end of the mounting seat. The gear meshes with the external gear ring. The workpiece is placed in the positioning groove for positioning. Then, the support platform drives the rotating shaft and the mounting seat to revolve. Since the gear meshes with the external gear ring, the gear revolves and at the same time rotates under the cooperation of the mounting seat, so that the mounting seat drives the workpiece in the positioning groove to rotate. The heating coil uniformly heats and brazes the workpiece, improving the welding uniformity.

[0009] Preferably, the unloading assembly includes a bracket, a first servo electric cylinder, a lifting plate, a second servo electric cylinder, and an electric clamp. A bracket is provided at the left end of the workbench. A first servo electric cylinder is provided at the bottom end of the bracket. The mobile end at the top of the first servo electric cylinder extends above the bracket and is connected to the bottom end of the lifting plate. A second servo electric cylinder is installed on the lifting plate. An electric clamp is provided at the mobile end on the right side of the second servo electric cylinder. When the brazing of the workpiece is completed, operate the second servo electric cylinder to extend, so that the electric clamp grabs the workpiece. Operate the first servo electric cylinder to extend, so that the electric clamp moves the workpiece away from the positioning groove. Then operate the second servo electric cylinder to shorten, and then operate the electric clamp to release the workpiece, thus completing the unloading of the workpiece, improving the automation degree and the processing efficiency.

[0010] Preferably, it further includes a lead screw and a limit block. The bottom end of the lifting plate is provided with a lead screw, and the lead screw is slidably connected to the bracket. A group of limit blocks are respectively provided at the bottom end of each lead screw. The first servo electric cylinder drives the lifting plate to stably rise and fall under the cooperation of the two lead screws, improving the lifting stability.

[0011] Preferably, it further includes a reinforcing plate. A reinforcing plate is provided between the bracket and the workbench. The workbench and the bracket are strengthened and connected through the reinforcing plate, improving the connection firmness.

[0012] Preferably, it further includes adjustable feet. A group of adjustable feet are respectively provided at the four corners of the bottom end of the workbench. The four groups of adjustable feet cooperate with each other to stably support the workbench, improving the stability.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: When in use, the workpieces are sequentially placed on the conveying assembly, and the electric turntable is started to rotate intermittently, so that the support platform drives multiple groups of conveying assemblies to revolve intermittently, and at the same time the conveying assembly drives the workpieces to rotate under the cooperation of the external gear ring, so that the heating assembly uniformly heats and brazes the workpieces. After the brazing is completed, the unloading assembly unloads the workpieces, improving the welding efficiency. Description of the Drawings

[0014] Figure 1It is an isometric structural schematic diagram of the present utility model;

[0015] Figure 2 is Figure 1 a partially enlarged structural schematic diagram of part A in

[0016] Figure 3 It is an exploded structural schematic diagram of the present utility model;

[0017] Figure 4 is an enlarged structural schematic diagram of structures such as the bracket and the second servo electric cylinder;

[0018] Figure 5 is an enlarged structural schematic diagram of structures such as the gear and the roller.

[0019] Reference signs in the drawings: 1, workbench; 2, electric turntable; 3, support table; 4, external toothed ring; 5, intermediate frequency heating furnace; 6, heating coil; 7, roller; 8, rotating shaft; 9, gear; 10, mounting seat; 11, positioning groove; 12, bracket; 13, first servo electric cylinder; 14, lifting plate; 15, second servo electric cylinder; 16, electric fixture; 17, optical bar; 18, limit block; 19, reinforcement plate; 20, adjustable foot. Specific embodiments

[0020] For ease of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0021] Embodiment 1

[0022] As Figure 1 and Figure 3 shown, an automatic welding device for rock drilling tools of the present utility model includes a workbench 1, an electric turntable 2, a support table 3 and an external toothed ring 4. An electric turntable 2 and an external toothed ring 4 are arranged at the top of the workbench 1. A support table 3 is arranged at the top of the electric turntable 2. The external toothed ring 4 is on the outside of the electric turntable 2. It further includes a heating assembly, a conveying assembly and a discharging assembly. The heating assembly and the discharging assembly are respectively arranged at the top of the workbench 1. Multiple groups of conveying assemblies are arranged on the support table 3. The heating assembly is used for heating and brazing the workpiece. The conveying assembly is used for conveying the workpiece. The discharging assembly is used for discharging the brazed workpiece;

[0023] As Figure 1 and Figure 2 shown, the heating assembly includes an intermediate frequency heating furnace 5 and a heating coil 6. The intermediate frequency heating furnace 5 is arranged at the top of the workbench 1. The output end of the intermediate frequency heating furnace 5 is provided with a heating coil 6;

[0024] AsFigure 1 , Figure 2 , Figure 3 and Figure 5 As shown in Figures 1, the conveying assembly includes rollers 7, a rotating shaft 8, a gear 9, a mounting base 10 and a positioning groove 11. The rotating shaft 8 passes through the support platform 3 and is rotatably connected to the support platform 3. A mounting base 10 is provided at the top end of the rotating shaft 8, a positioning groove 11 is provided at the top end of the mounting base 10, and multiple groups of rollers 7 are circumferentially provided at the bottom end of the mounting base 10. The gear 9 meshes with the external gear ring 4.

[0025] In this embodiment, the workpiece is placed in the positioning groove 11 for positioning. Then, the support platform 3 drives the rotating shaft 8 and the mounting base 10 to revolve. Since the gear 9 meshes with the external gear ring 4, the gear 9 revolves and at the same time rotates on its own with the cooperation of the mounting base 10, so that the mounting base 10 drives the workpiece in the positioning groove 11 to rotate. The heating coil 6 uniformly heats and brazes the workpiece. After brazing is completed, the unloading assembly unloads the workpiece, improving the welding efficiency.

[0026] Embodiment 2

[0027] As Figure 1 and Figure 3 shown, an automatic welding device for a rock drilling tool of the present utility model includes a workbench 1, an electric turntable 2, a support platform 3 and an external gear ring 4. The electric turntable 2 and the external gear ring 4 are provided at the top end of the workbench 1, the support platform 3 is provided at the top end of the electric turntable 2, and the external gear ring 4 is on the outside of the electric turntable 2. It further includes a heating assembly, a conveying assembly and an unloading assembly. The heating assembly and the unloading assembly are respectively provided at the top end of the workbench 1, and multiple groups of conveying assemblies are provided on the support platform 3. The heating assembly is used for heating and brazing the workpiece, the conveying assembly is used for conveying the workpiece, and the unloading assembly is used for unloading the brazed workpiece;

[0028] As Figure 1 and Figure 2 shown, the heating assembly includes an intermediate frequency heating furnace 5 and a heating coil 6. The intermediate frequency heating furnace 5 is provided at the top end of the workbench 1, and the heating coil 6 is provided at the output end of the intermediate frequency heating furnace 5;

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown in Figures 1, the conveying assembly includes rollers 7, a rotating shaft 8, a gear 9, a mounting base 10 and a positioning groove 11. The rotating shaft 8 passes through the support platform 3 and is rotatably connected to the support platform 3. A mounting base 10 is provided at the top end of the rotating shaft 8, a positioning groove 11 is provided at the top end of the mounting base 10, and multiple groups of rollers 7 are circumferentially provided at the bottom end of the mounting base 10. The gear 9 meshes with the external gear ring 4;

[0030] As Figure 1 , Figure 3 andFigure 4 As shown in the figure, the unloading assembly includes a bracket 12, a first servo electric cylinder 13, a lifting plate 14, a second servo electric cylinder 15 and an electric clamp 16. A bracket 12 is provided at the left end of the workbench 1. A first servo electric cylinder 13 is provided at the bottom end of the bracket 12. The top moving end of the first servo electric cylinder 13 extends above the bracket 12 and is connected to the bottom end of the lifting plate 14. A second servo electric cylinder 15 is installed on the lifting plate 14. An electric clamp 16 is provided at the right moving end of the second servo electric cylinder 15;

[0031] It further includes a smooth rod 17, a limit block 18, a reinforcing plate 19 and adjustable feet 20. A smooth rod 17 is provided at the bottom end of the lifting plate 14. The smooth rod 17 is slidably connected to the bracket 12. A set of limit blocks 18 are respectively provided at the bottom end of each group of smooth rods 17. A reinforcing plate 19 is provided between the bracket 12 and the workbench 1. A set of adjustable feet 20 are respectively provided at the four corners of the bottom end of the workbench 1.

[0032] In this embodiment, the workpiece is placed in the positioning groove 11 for positioning. Then, the support table 3 drives the rotating shaft 8 and the mounting seat 10 to revolve. Since the gear 9 meshes with the external tooth ring 4, when the gear 9 revolves, the gear 9 rotates on its own under the cooperation of the mounting seat 10. Thus, the mounting seat 10 drives the workpiece in the positioning groove 11 to rotate. The heating coil 6 uniformly heats and brazes the workpiece. After the brazing is completed, when the workpiece is brazed, operate the second servo electric cylinder 15 to extend, so that the electric clamp 16 grabs the workpiece. Operate the first servo electric cylinder 13 to extend, so that the electric clamp 16 moves the workpiece away from the positioning groove 11. Then operate the second servo electric cylinder 15 to shorten. Then operate the electric clamp 16 to release the workpiece, thus completing the unloading of the workpiece and improving the degree of automation.

[0033] The electric turntable 2, intermediate frequency heating furnace 5, heating coil 6, first servo electric cylinder 13, second servo electric cylinder 15 and electric clamp 16 of the automatic welding equipment for rock drilling tools of the present utility model are purchased on the market. Those skilled in the industry only need to install and operate them according to the attached operation manuals, without the need for creative labor from those skilled in the art.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An automatic welding device for rock drilling tools, comprising a workbench (1), an electric turntable (2), a support table (3) and an external gear ring (4). The top of the workbench (1) is provided with an electric turntable (2) and an external gear ring (4). The top of the electric turntable (2) is provided with a support table (3). The external gear ring (4) is on the outside of the electric turntable (2), and it is characterized in that, It also includes a heating component, a conveying component, and a discharging component. The heating component and the discharging component are respectively arranged at the top of the workbench (1), and multiple groups of conveying components are arranged on the support table (3). The heating component is used for heating and brazing the workpiece, the conveying component is used for conveying the workpiece, and the discharging component is used for discharging the brazed workpiece.

2. The automatic welding equipment for rock drilling tools according to claim 1, characterized in that, The heating component includes an intermediate frequency heating furnace (5) and a heating coil (6). The intermediate frequency heating furnace (5) is arranged at the top of the workbench (1), and the output end of the intermediate frequency heating furnace (5) is provided with a heating coil (6).

3. The automatic welding equipment for rock drilling tools according to claim 2, characterized in that, The conveying component includes rollers (7), a rotating shaft (8), a gear (9), a mounting seat (10), and a positioning groove (11). The rotating shaft (8) passes through the support table (3) and is rotatably connected to the support table (3). The top of the rotating shaft (8) is provided with a mounting seat (10), the top of the mounting seat (10) is provided with a positioning groove (11), and multiple groups of rollers (7) are circumferentially arranged at the bottom of the mounting seat (10). The gear (9) meshes with the external tooth ring (4).

4. The automatic welding equipment for rock drilling tools according to claim 1, characterized in that, The discharging component includes a bracket (12), a first servo electric cylinder (13), a lifting plate (14), a second servo electric cylinder (15), and an electric fixture (16). The bracket (12) is arranged at the left end of the workbench (1), the bottom of the bracket (12) is provided with a first servo electric cylinder (13), and the top mobile end of the first servo electric cylinder (13) extends above the bracket (12) and is connected to the bottom end of the lifting plate (14). A second servo electric cylinder (15) is installed on the lifting plate (14), and an electric fixture (16) is arranged at the right mobile end of the second servo electric cylinder (15).

5. The automatic welding equipment for a rock drilling tool according to claim 4, characterized in that, It also includes a lead screw (17) and a limit block (18). The bottom end of the lifting plate (14) is provided with a lead screw (17), the lead screw (17) is slidably connected to the bracket (12), and a group of limit blocks (18) are respectively arranged at the bottom end of each lead screw (17).

6. The automatic welding equipment for rock drilling tools according to claim 4, characterized in that, It also includes a reinforcing plate (19). A reinforcing plate (19) is arranged between the bracket (12) and the workbench (1).

7. The automatic welding equipment for rock drilling tools according to claim 1, characterized in that, It also includes adjustable feet (20). A group of adjustable feet (20) are respectively arranged at the four corners of the bottom end of the workbench (1).

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