A device for welding a locking rod rivet

Abstract

A kind of device for welding locking lever rivet, including mesa, slide rail, slide table, welding gun and first cylinder, the front side of mesa is equipped with inclined mounting plate, two welding stations are equipped on mounting plate, each station includes cabinet, worm gear mechanism, drive motor, hollow worm center shaft and coaxial positioning tube, positioning tube is used to position pre-assembled locking lever and rivet;Second cylinder is equipped below each station, its piston rod extends into positioning tube for ejecting workpiece after welding.First cylinder drives welding gun to move alternately between two stations, drive motor rotates positioning tube to complete circumferential welding when welding.The device alternately welds by double station, and automatically ejects and discharges, without waiting for cooling, significantly improves production efficiency, compact structure, convenient operation.

Description

Technical Field

[0001] This invention relates to a welding device for applying a locking rod rivet. Background Technology

[0002] The existing railway freight cars use electronic locking devices, in which the electronic chip and built-in antenna are encapsulated together in the lock body. When the lock bar is cut (i.e. the electronic locking device is broken), the data information stored in the electronic chip can still be read, and the relevant information of the cargo inside the car cannot be kept confidential. See Chinese Patent CN200920081176.9 for the structure.

[0003] The end of the electronic locking rod is integrally injection molded with the antenna box by welding a rivet to the end of the locking rod. The existing processing method is to first pre-assemble the locking rod and the rivet, then fix the locking rod on the fixture, and then control the welding machine to perform circumferential welding. The disadvantages of this method are: low processing efficiency, the need to clamp the locking rod on the fixture before welding, the welding machine to start, the welding gun to rotate around the locking rod during the welding process, and the inability to manually unload the metal locking rod after welding due to its high temperature (the heat-resistant gloves are thick, which affects operation, especially the loading stage) after the welding is completed. The welding machine and fixture have low utilization rates and slow production cycle. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a welding device for sealing and locking rod rivets, which has two workstations, can alternate welding and automatically unload materials, and greatly improves production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a welding device for applying a locking rod rivet:

[0006] It includes a square platform surface with several legs underneath;

[0007] A horizontally arranged slide rail with a left-right orientation is provided on the upper side of the table near its front edge. A slide table is provided on the slide rail and slides in a left-right direction. A welding gun is provided on the slide table, which extends forward and has its tip pointing vertically downward. A first cylinder is provided on either side of the slide rail on the upper side of the table. The first cylinder is horizontally arranged with a left-right orientation. The cylinder barrel of the first cylinder is fixed to the table by a mounting seat. The piston rod end of the first cylinder is connected to the slide table.

[0008] The front side of the worktable is provided with a long strip mounting plate that extends forward and slopes downward at the front. The length of the mounting plate runs in a left-right direction. There are two welding stations arranged at intervals on the upper side of the mounting plate.

[0009] Each welding station is equipped with a housing, and each housing contains a meshing worm gear and worm. The axis of the worm gear is perpendicular to the mounting plate, and the axis of the worm is horizontally arranged in a left-right direction. The shaft end of the worm extends beyond the housing on one side. A drive motor is provided at each housing position corresponding to the shaft end of the worm extending beyond the housing. The output shaft of the drive motor is coaxially connected to the corresponding worm. Both ends of the worm gear central shaft extend beyond the housing in the axial direction. The mounting plate position is provided with a clearance hole for the worm gear central shaft to pass through. The worm gear central shaft is a hollow shaft, and a positioning tube is coaxially connected inside the worm gear central shaft. Both ends of the positioning tube extend beyond the length of the worm gear central shaft in the length direction.

[0010] When the piston rod of the first cylinder is at its maximum and minimum stroke positions, the tip of the welding gun on the slide table is directly opposite the upper end of the positioning tube on the two welding stations, respectively.

[0011] A second cylinder is provided at each welding station below the mounting plate. The cylinder barrel of the second cylinder is connected to the machine housing at the corresponding welding station through a connecting frame. The piston rod of the second cylinder is arranged inclined upward and coaxial with the positioning tube at the corresponding welding station. The upper end of the piston rod of the second cylinder extends into the positioning tube at the corresponding welding station.

[0012] A power distribution box is located at the rear of the underside of the tabletop. The power distribution box contains a switching power supply and a controller. The first cylinder, two drive motors, two second cylinders, and the welding gun are all electrically connected to the switching power supply through the controller.

[0013] For the sake of simplicity, the sealing and locking rod rivet welding device described in this invention will be referred to as "this device" in the following text.

[0014] The operating method of this device is as follows: First, pre-assemble the rivet by attaching it to the upper part of the locking rod. Then, insert the lower end of the locking rod into the positioning tube of the first welding station. When the lower end of the locking rod contacts the corresponding piston rod of the second cylinder, it is fully inserted. At this time, the controller controls the movement of the first cylinder, moving the welding gun to this station. After the welding gun is in position, its tip is directly opposite the joint between the locking rod and the rivet. The welding gun then starts welding. Simultaneously, the drive motor drives the coaxially arranged hollow shaft and positioning tube through a worm gear mechanism. The positioning tube causes the pre-assembled locking rod and rivet to rotate rapidly, completing the circumferential welding. Welding then begins at the first welding station. During operation, another pre-assembled locking rod and rivet are inserted into the positioning tube of the second welding station. After the first welding station completes welding, the first cylinder is controlled to move the welding gun from the first welding station to the second welding station. Then, the second cylinder of the first welding station is activated to push the welded locking rod upward from the positioning tube. After the locking rod is pushed out, the second cylinder returns to its original position, and the operator can then load a new set of locking rods and rivets to be welded into the positioning tube of the first welding station. At the same time, the welding gun moved to the second welding station begins to weld the locking rods and rivets on the second welding station, and so on.

[0015] Advantages of this device: This device has a simple structure, two welding stations can weld alternately and automatically unload materials without waiting for cooling, thus speeding up the production cycle and greatly improving efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this device.

[0017] Figure 2 This is a partial lateral sectional view of the device in its operational state.

[0018] Figure 3 yes Figure 2 A magnified view of part A in the middle. Detailed Implementation

[0019] See Figures 1-3 A device for welding rivets on a locking rod:

[0020] It includes a square platform surface 1, and several legs 11 are provided on the underside of the platform surface 1;

[0021] On the upper side of the tabletop 1, near its front edge, there is a horizontally arranged slide rail 2 with its length running left and right. A slide table 21 is provided on the slide rail 2, which slides and engages with it in the left and right direction. A welding torch 3 is provided on the slide table 21, extending forward with its tip pointing vertically downwards (to clearly demonstrate the structural features). Figure 1(The welding gun 3 is not shown in the figure) A first cylinder 4 is provided on the upper side of the table 1, corresponding to the slide rail 2, in either the left or right direction. The first cylinder 4 is arranged horizontally with its length direction running left and right. The cylinder barrel 81 of the first cylinder 4 is fixed to the table 1 by the mounting base 41. The end of the piston rod 82 of the first cylinder 4 is connected to the slide table 21.

[0022] The front side of the work surface 1 is provided with a long strip mounting plate 12 that extends forward and slopes downward at the front. The mounting plate 12 runs horizontally along its length. The upper side of the mounting plate 12 is provided with two welding stations arranged at intervals from left to right (for simplicity, Figure 1 Only the structure at the left welding station is shown in the image; the right welding station is empty.

[0023] Each welding station is equipped with a housing 5, and each housing 5 contains a meshing worm gear 51 and worm 52. The axis of the worm gear 51 is perpendicular to the mounting plate 12, and the axis of the worm 52 is horizontally arranged in a left-right direction. The shaft end 521 of the worm 52 extends beyond the housing 5 to one side. At each position on the housing 5, corresponding to the shaft end 521 of the worm 52 extending beyond the housing 5, a drive motor is provided (the drive motor is a conventional geared motor; to better showcase the structural features, the drive motor is...). Figure 1 (Not shown in the image), the output shaft of the drive motor is coaxially connected to the corresponding worm 52. Both ends of the axial direction of the central shaft 6 of the worm wheel 51 extend beyond the housing 5. At the position of the mounting plate 12, there is a clearance hole 121 for the central shaft 6 of the worm wheel 51 to pass through. The central shaft 6 of the worm wheel 51 is a hollow shaft. A positioning tube 7 is coaxially connected inside the central shaft 6 of the worm wheel 51. Both ends of the positioning tube 7 extend beyond the length direction of the central shaft 6 of the worm wheel 51.

[0024] When the piston rod 82 of the first cylinder 4 is at the maximum and minimum stroke positions, the tip of the welding gun 3 on the slide table 21 is directly opposite to the upper end of the positioning tube 7 on the two welding stations, respectively.

[0025] A second cylinder 8 is provided at each welding station below the mounting plate 12. The cylinder barrel 81 of the second cylinder 8 is connected to the housing 5 at the corresponding welding station through the connecting frame 83. The piston rod 82 of the second cylinder 8 is arranged inclined upward and coaxial with the positioning tube 7 at the corresponding welding station. The upper end of the piston rod 82 of the second cylinder 8 extends into the positioning tube 7 at the corresponding welding station.

[0026] A distribution box 13 is provided on the lower rear side of the table 1. The distribution box 13 contains a switching power supply and a controller. The first cylinder 4, two drive motors, two second cylinders 8 and the welding gun 3 are all electrically connected to the switching power supply through the controller (the switching power supply, controller, motor control and cylinder control are all conventional technologies in the fields of mechanical manufacturing and electrical engineering. In this embodiment, the electrical connection lines, air circuits and control circuits themselves are not described in detail).

[0027] The method of using this device is as follows: First, attach the rivet 9 to the upper part of the locking rod 91 to complete the pre-assembly. Then, insert the lower end of the locking rod 91 into the positioning tube 7 of the first welding station. When the lower end of the locking rod 91 contacts the piston rod 82 of the corresponding second cylinder 8, it is fully inserted. At this time, the controller controls the first cylinder 4 to move, moving the welding gun 3 to this station. After the welding gun 3 is in position, its tip is directly facing the joint between the locking rod 91 and the rivet 9. The welding gun 3 then starts welding. Simultaneously, the drive motor drives the coaxially arranged hollow shaft and positioning tube 7 through the worm gear 51 and worm 52 mechanism. The positioning tube 7 drives the pre-assembled locking rod 91 and rivet 9 to rotate rapidly, completing the circumferential welding. The first welding station then... During the welding operation, another pre-assembled locking rod 91 and rivet 9 are inserted into the positioning tube 7 of the second welding station. After the welding at the first welding station is completed, the first cylinder 4 is controlled to move the welding gun 3 from the first welding station to the second welding station. Then, the second cylinder 8 of the first welding station is activated to push the welded locking rod 91 upward from the positioning tube 7. After the locking rod 91 is pushed out, the second cylinder 8 returns to its original position. The operator can then load a new set of locking rods 91 and rivets 9 to be welded into the positioning tube 7 of the first welding station. At the same time, the welding gun 3, which has moved to the second welding station, begins to weld the locking rods 91 and rivets 9 at the second welding station. This cycle continues.

[0028] Advantages of this device: This device has a simple structure, two welding stations can weld alternately and automatically unload materials without waiting for cooling, thus speeding up the production cycle and greatly improving efficiency.

Claims

1. A device for welding rivets on a locking rod, characterized in that: It includes a square platform surface with several legs underneath; A horizontally arranged slide rail with a left-right orientation is provided on the upper side of the table near its front edge. A slide table is provided on the slide rail and slides in a left-right direction. A welding gun is provided on the slide table, which extends forward and has its tip pointing vertically downward. A first cylinder is provided on either side of the slide rail on the upper side of the table. The first cylinder is horizontally arranged with a left-right orientation. The cylinder barrel of the first cylinder is fixed to the table by a mounting seat. The piston rod end of the first cylinder is connected to the slide table. The front side of the worktable is provided with a long strip mounting plate that extends forward and slopes downward at the front. The length of the mounting plate runs in a left-right direction. There are two welding stations arranged at intervals on the upper side of the mounting plate. Each welding station is equipped with a housing, and each housing contains a meshing worm gear and worm. The axis of the worm gear is perpendicular to the mounting plate, and the axis of the worm is horizontally arranged in a left-right direction. The shaft end of the worm extends beyond the housing on one side. A drive motor is provided at each housing position corresponding to the shaft end of the worm extending beyond the housing. The output shaft of the drive motor is coaxially connected to the corresponding worm. Both ends of the worm gear central shaft extend beyond the housing in the axial direction. The mounting plate position is provided with a clearance hole for the worm gear central shaft to pass through. The worm gear central shaft is a hollow shaft, and a positioning tube is coaxially connected inside the worm gear central shaft. Both ends of the positioning tube extend beyond the length of the worm gear central shaft in the length direction. When the piston rod of the first cylinder is at its maximum and minimum stroke positions, the tip of the welding gun on the slide table is directly opposite the upper end of the positioning tube on the two welding stations, respectively. A second cylinder is provided at each welding station below the mounting plate. The cylinder barrel of the second cylinder is connected to the machine housing at the corresponding welding station through a connecting frame. The piston rod of the second cylinder is arranged inclined upward and coaxial with the positioning tube at the corresponding welding station. The upper end of the piston rod of the second cylinder extends into the positioning tube at the corresponding welding station. A power distribution box is located at the rear of the underside of the tabletop. The power distribution box contains a switching power supply and a controller. The first cylinder, two drive motors, two second cylinders, and the welding gun are all electrically connected to the switching power supply through the controller.

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